Mercurial > ldforge / changeset

--- a/ldforge.pro	Tue Jan 21 01:29:12 2014 +0200
+++ b/ldforge.pro	Tue Jan 21 02:09:14 2014 +0200
@@ -9,7 +9,7 @@
 RCC_DIR         = ./build_shared/
 MOC_DIR         = ./build_shared/
 UI_DIR          = ./build_shared/
-SOURCES         = src/*.cc
+SOURCES         = src/*.cc src/actions/*.cc
 HEADERS         = src/*.h src/misc/*.h
 FORMS           = ui/*.ui
 QT             += opengl network

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/AddObjectDialog.cc	Tue Jan 21 02:09:14 2014 +0200
@@ -0,0 +1,444 @@
+/*
+ *  LDForge: LDraw parts authoring CAD
+ *  Copyright (C) 2013, 2014 Santeri Piippo
+ *
+ *  This program is free software: you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation, either version 3 of the License, or
+ *  (at your option) any later version.
+ *
+ *  This program is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include <QGridLayout>
+#include <QCheckBox>
+#include <QDialogButtonBox>
+#include <QSpinBox>
+#include <QLabel>
+#include <QListWidget>
+#include <QTreeWidget>
+#include <QLineEdit>
+#include <QPushButton>
+#include "MainWindow.h"
+#include "AddObjectDialog.h"
+#include "Document.h"
+#include "Colors.h"
+#include "ColorSelector.h"
+#include "EditHistory.h"
+#include "Widgets.h"
+#include "Misc.h"
+#include "Primitives.h"
+#include "moc_AddObjectDialog.cpp"
+
+// =============================================================================
+// -----------------------------------------------------------------------------
+class SubfileListItem : public QTreeWidgetItem
+{
+	PROPERTY (public,	Primitive*,	PrimitiveInfo, NO_OPS,	STOCK_WRITE)
+
+	public:
+		SubfileListItem (QTreeWidgetItem* parent, Primitive* info) :
+			QTreeWidgetItem (parent),
+			m_PrimitiveInfo (info) {}
+
+		SubfileListItem (QTreeWidget* parent, Primitive* info) :
+			QTreeWidgetItem (parent),
+			m_PrimitiveInfo (info) {}
+};
+
+// =============================================================================
+// -----------------------------------------------------------------------------
+AddObjectDialog::AddObjectDialog (const LDObject::Type type, LDObject* obj, QWidget* parent) :
+	QDialog (parent)
+{
+	setlocale (LC_ALL, "C");
+
+	int coordCount = 0;
+	QString typeName = LDObject::typeName (type);
+
+	switch (type)
+	{
+		case LDObject::EComment:
+		{
+			le_comment = new QLineEdit;
+
+			if (obj)
+				le_comment->setText (static_cast<LDComment*> (obj)->text);
+
+			le_comment->setMinimumWidth (384);
+		} break;
+
+		case LDObject::ELine:
+		{
+			coordCount = 6;
+		} break;
+
+		case LDObject::ETriangle:
+		{
+			coordCount = 9;
+		} break;
+
+		case LDObject::EQuad:
+		case LDObject::ECondLine:
+		{
+			coordCount = 12;
+		} break;
+
+		case LDObject::EVertex:
+		{
+			coordCount = 3;
+		} break;
+
+		case LDObject::EBFC:
+		{
+			rb_bfcType = new RadioGroup ("Statement", {}, 0, Qt::Vertical);
+
+			for (int i = 0; i < LDBFC::NumStatements; ++i)
+			{
+				// Separate these in two columns
+				if (i == LDBFC::NumStatements / 2)
+					rb_bfcType->rowBreak();
+
+				rb_bfcType->addButton (LDBFC::statements[i]);
+			}
+
+			if (obj)
+				rb_bfcType->setValue ( (int) static_cast<LDBFC*> (obj)->type);
+		} break;
+
+		case LDObject::ESubfile:
+		{
+			coordCount = 3;
+			tw_subfileList = new QTreeWidget();
+			tw_subfileList->setHeaderLabel (tr ("Primitives"));
+
+			for (PrimitiveCategory* cat : g_PrimitiveCategories)
+			{
+				SubfileListItem* parentItem = new SubfileListItem (tw_subfileList, null);
+				parentItem->setText (0, cat->getName());
+				QList<QTreeWidgetItem*> subfileItems;
+
+				for (Primitive& prim : cat->prims)
+				{
+					SubfileListItem* item = new SubfileListItem (parentItem, &prim);
+					item->setText (0, fmt ("%1 - %2", prim.name, prim.title));
+					subfileItems << item;
+
+					// If this primitive is the one the current object points to,
+					// select it by default
+					if (obj && static_cast<LDSubfile*> (obj)->getFileInfo()->getName() == prim.name)
+						tw_subfileList->setCurrentItem (item);
+				}
+
+				tw_subfileList->addTopLevelItem (parentItem);
+			}
+
+			connect (tw_subfileList, SIGNAL (itemSelectionChanged()), this, SLOT (slot_subfileTypeChanged()));
+			lb_subfileName = new QLabel ("File:");
+			le_subfileName = new QLineEdit;
+			le_subfileName->setFocus();
+
+			if (obj)
+			{
+				LDSubfile* ref = static_cast<LDSubfile*> (obj);
+				le_subfileName->setText (ref->getFileInfo()->getName());
+			}
+		} break;
+
+		default:
+		{
+			critical (fmt ("Unhandled LDObject type %1 (%2) in AddObjectDialog", (int) type, typeName));
+		} return;
+	}
+
+	QPixmap icon = getIcon (fmt ("add-%1", typeName));
+	LDObject* defaults = LDObject::getDefault (type);
+
+	lb_typeIcon = new QLabel;
+	lb_typeIcon->setPixmap (icon);
+
+	// Show a color edit dialog for the types that actually use the color
+	if (defaults->isColored())
+	{
+		if (obj != null)
+			colnum = obj->getColor();
+		else
+			colnum = (type == LDObject::ECondLine || type == LDObject::ELine) ? edgecolor : maincolor;
+
+		pb_color = new QPushButton;
+		setButtonBackground (pb_color, colnum);
+		connect (pb_color, SIGNAL (clicked()), this, SLOT (slot_colorButtonClicked()));
+	}
+
+	for (int i = 0; i < coordCount; ++i)
+	{
+		dsb_coords[i] = new QDoubleSpinBox;
+		dsb_coords[i]->setDecimals (5);
+		dsb_coords[i]->setMinimum (-10000.0);
+		dsb_coords[i]->setMaximum (10000.0);
+	}
+
+	QGridLayout* const layout = new QGridLayout;
+	layout->addWidget (lb_typeIcon, 0, 0);
+
+	switch (type)
+	{
+		case LDObject::ELine:
+		case LDObject::ECondLine:
+		case LDObject::ETriangle:
+		case LDObject::EQuad:
+
+			// Apply coordinates
+			if (obj)
+			{
+				for (int i = 0; i < coordCount / 3; ++i)
+					for (int j = 0; j < 3; ++j)
+						dsb_coords[ (i * 3) + j]->setValue (obj->getVertex (i).getCoordinate (j));
+			}
+
+			break;
+
+		case LDObject::EComment:
+			layout->addWidget (le_comment, 0, 1);
+			break;
+
+		case LDObject::EBFC:
+			layout->addWidget (rb_bfcType, 0, 1);
+			break;
+
+		case LDObject::ESubfile:
+			layout->addWidget (tw_subfileList, 1, 1, 1, 2);
+			layout->addWidget (lb_subfileName, 2, 1);
+			layout->addWidget (le_subfileName, 2, 2);
+			break;
+
+		default:
+			break;
+	}
+
+	if (defaults->hasMatrix())
+	{
+		LDMatrixObject* mo = dynamic_cast<LDMatrixObject*> (obj);
+
+		QLabel* lb_matrix = new QLabel ("Matrix:");
+		le_matrix = new QLineEdit;
+		// le_matrix->setValidator (new QDoubleValidator);
+		Matrix defaultMatrix = g_identity;
+
+		if (mo)
+		{
+			for_axes (ax)
+				dsb_coords[ax]->setValue (mo->getPosition()[ax]);
+
+			defaultMatrix = mo->getTransform();
+		}
+
+		le_matrix->setText (defaultMatrix.toString());
+		layout->addWidget (lb_matrix, 4, 1);
+		layout->addWidget (le_matrix, 4, 2, 1, 3);
+	}
+
+	if (defaults->isColored())
+		layout->addWidget (pb_color, 1, 0);
+
+	if (coordCount > 0)
+	{
+		QGridLayout* const qCoordLayout = new QGridLayout;
+
+		for (int i = 0; i < coordCount; ++i)
+			qCoordLayout->addWidget (dsb_coords[i], (i / 3), (i % 3));
+
+		layout->addLayout (qCoordLayout, 0, 1, (coordCount / 3), 3);
+	}
+
+	QDialogButtonBox* bbx_buttons = new QDialogButtonBox (QDialogButtonBox::Ok | QDialogButtonBox::Cancel);
+	QWidget::connect (bbx_buttons, SIGNAL (accepted()), this, SLOT (accept()));
+	QWidget::connect (bbx_buttons, SIGNAL (rejected()), this, SLOT (reject()));
+	layout->addWidget (bbx_buttons, 5, 0, 1, 4);
+	setLayout (layout);
+	setWindowTitle (fmt (tr ("Edit %1"), typeName));
+
+	setWindowIcon (icon);
+	defaults->deleteSelf();
+}
+
+// =============================================================================
+// -----------------------------------------------------------------------------
+void AddObjectDialog::setButtonBackground (QPushButton* button, int colnum)
+{
+	LDColor* col = getColor (colnum);
+
+	button->setIcon (getIcon ("palette"));
+	button->setAutoFillBackground (true);
+
+	if (col)
+		button->setStyleSheet (fmt ("background-color: %1", col->hexcode));
+}
+
+// =============================================================================
+// -----------------------------------------------------------------------------
+QString AddObjectDialog::currentSubfileName()
+{
+	SubfileListItem* item = static_cast<SubfileListItem*> (tw_subfileList->currentItem());
+
+	if (item->getPrimitiveInfo() == null)
+		return ""; // selected a heading
+
+	return item->getPrimitiveInfo()->name;
+}
+
+// =============================================================================
+// -----------------------------------------------------------------------------
+void AddObjectDialog::slot_colorButtonClicked()
+{
+	ColorSelector::selectColor (colnum, colnum, this);
+	setButtonBackground (pb_color, colnum);
+}
+
+// =============================================================================
+// -----------------------------------------------------------------------------
+void AddObjectDialog::slot_subfileTypeChanged()
+{
+	QString name = currentSubfileName();
+
+	if (name.length() > 0)
+		le_subfileName->setText (name);
+}
+
+// =============================================================================
+// -----------------------------------------------------------------------------
+template<class T> static T* initObj (LDObject*& obj)
+{
+	if (obj == null)
+		obj = new T;
+
+	return static_cast<T*> (obj);
+}
+
+// =============================================================================
+// -----------------------------------------------------------------------------
+void AddObjectDialog::staticDialog (const LDObject::Type type, LDObject* obj)
+{
+	setlocale (LC_ALL, "C");
+
+	// FIXME: Redirect to Edit Raw
+	if (obj && obj->getType() == LDObject::EError)
+		return;
+
+	if (type == LDObject::EEmpty)
+		return; // Nothing to edit with empties
+
+	const bool newObject = (obj == null);
+	Matrix transform = g_identity;
+	AddObjectDialog dlg (type, obj);
+
+	assert (!obj || obj->getType() == type);
+
+	if (dlg.exec() == false)
+		return;
+
+	if (type == LDObject::ESubfile)
+	{
+		QStringList matrixstrvals = dlg.le_matrix->text().split (" ", QString::SkipEmptyParts);
+
+		if (matrixstrvals.size() == 9)
+		{
+			double matrixvals[9];
+			int i = 0;
+
+			for (QString val : matrixstrvals)
+				matrixvals[i++] = val.toFloat();
+
+			transform = Matrix (matrixvals);
+		}
+	}
+
+	switch (type)
+	{
+		case LDObject::EComment:
+		{
+			LDComment* comm = initObj<LDComment> (obj);
+			comm->text = dlg.le_comment->text();
+		}
+		break;
+
+		case LDObject::ELine:
+		case LDObject::ETriangle:
+		case LDObject::EQuad:
+		case LDObject::ECondLine:
+		{
+			if (!obj)
+				obj = LDObject::getDefault (type);
+
+			for (int i = 0; i < obj->vertices(); ++i)
+			{
+				Vertex v;
+
+				for_axes (ax)
+					v[ax] = dlg.dsb_coords[ (i * 3) + ax]->value();
+
+				obj->setVertex (i, v);
+			}
+		} break;
+
+		case LDObject::EBFC:
+		{
+			LDBFC* bfc = initObj<LDBFC> (obj);
+			bfc->type = (LDBFC::Type) dlg.rb_bfcType->value();
+		} break;
+
+		case LDObject::EVertex:
+		{
+			LDVertex* vert = initObj<LDVertex> (obj);
+
+			for_axes (ax)
+				vert->pos[ax] = dlg.dsb_coords[ax]->value();
+		}
+		break;
+
+		case LDObject::ESubfile:
+		{
+			QString name = dlg.le_subfileName->text();
+
+			if (name.length() == 0)
+				return; // no subfile filename
+
+			LDDocument* file = getDocument (name);
+
+			if (!file)
+			{
+				critical (fmt ("Couldn't open `%1': %2", name, strerror (errno)));
+				return;
+			}
+
+			LDSubfile* ref = initObj<LDSubfile> (obj);
+			assert (ref);
+
+			for_axes (ax)
+				ref->setCoordinate (ax, dlg.dsb_coords[ax]->value());
+
+			ref->setTransform (transform);
+			ref->setFileInfo (file);
+		} break;
+
+		default:
+			break;
+	}
+
+	if (obj->isColored())
+		obj->setColor (dlg.colnum);
+
+	if (newObject)
+	{
+		int idx = g_win->getInsertionPoint();
+		getCurrentDocument()->insertObj (idx, obj);
+	}
+
+	g_win->refresh();
+}

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/AddObjectDialog.h	Tue Jan 21 02:09:14 2014 +0200
@@ -0,0 +1,73 @@
+/*
+ *  LDForge: LDraw parts authoring CAD
+ *  Copyright (C) 2013, 2014 Santeri Piippo
+ *
+ *  This program is free software: you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation, either version 3 of the License, or
+ *  (at your option) any later version.
+ *
+ *  This program is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#ifndef LDFORGE_ADDOBJECTDIALOG_H
+#define LDFORGE_ADDOBJECTDIALOG_H
+
+#include <QDialog>
+#include "LDObject.h"
+
+class QTreeWidgetItem;
+class QLineEdit;
+class RadioGroup;
+class QCheckBox;
+class QSpinBox;
+class QLabel;
+class QTreeWidget;
+class QDoubleSpinBox;
+
+class AddObjectDialog : public QDialog
+{
+	Q_OBJECT
+
+	public:
+		AddObjectDialog (const LDObject::Type type, LDObject* obj, QWidget* parent = null);
+		static void staticDialog (const LDObject::Type type, LDObject* obj);
+
+		QLabel* lb_typeIcon;
+
+		// Comment line edit
+		QLineEdit* le_comment;
+
+		// Coordinate edits for.. anything with coordinates, really.
+		QDoubleSpinBox* dsb_coords[12];
+
+		// Color selection dialog button
+		QPushButton* pb_color;
+
+		// BFC-related widgets
+		RadioGroup* rb_bfcType;
+
+		// Subfile stuff
+		QTreeWidget* tw_subfileList;
+		QLineEdit* le_subfileName;
+		QLabel* lb_subfileName;
+		QLineEdit* le_matrix;
+
+	private:
+		void setButtonBackground (QPushButton* button, int color);
+		QString currentSubfileName();
+
+		int colnum;
+
+	private slots:
+		void slot_colorButtonClicked();
+		void slot_subfileTypeChanged();
+};
+
+#endif // LDFORGE_ADDOBJECTDIALOG_H

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/ColorSelector.cc	Tue Jan 21 02:09:14 2014 +0200
@@ -0,0 +1,211 @@
+/*
+ *  LDForge: LDraw parts authoring CAD
+ *  Copyright (C) 2013, 2014 Santeri Piippo
+ *
+ *  This program is free software: you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation, either version 3 of the License, or
+ *  (at your option) any later version.
+ *
+ *  This program is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ *  =====================================================================
+ *
+ *  colorSelectDialog.cpp: Color selector box.
+ */
+
+#include <QGraphicsScene>
+#include <QGraphicsItem>
+#include <QMouseEvent>
+#include <QScrollBar>
+
+#include "Main.h"
+#include "MainWindow.h"
+#include "ColorSelector.h"
+#include "Colors.h"
+#include "Configuration.h"
+#include "Misc.h"
+#include "ui_colorsel.h"
+#include "moc_ColorSelector.cpp"
+
+static const int g_numColumns = 16;
+static const int g_squareSize = 32;
+
+extern_cfg (String, gl_maincolor);
+extern_cfg (Float, gl_maincolor_alpha);
+
+// =============================================================================
+// -----------------------------------------------------------------------------
+ColorSelector::ColorSelector (int defval, QWidget* parent) : QDialog (parent)
+{
+	// Remove the default color if it's invalid
+	if (!getColor (defval))
+		defval = -1;
+
+	m_firstResize = true;
+	ui = new Ui_ColorSelUI;
+	ui->setupUi (this);
+
+	m_scene = new QGraphicsScene;
+	ui->viewport->setScene (m_scene);
+	setSelection (getColor (defval));
+
+	// not really an icon but eh
+	m_scene->setBackgroundBrush (getIcon ("checkerboard"));
+	drawScene();
+
+	int width = viewportWidth();
+	ui->viewport->setMinimumWidth (width);
+	ui->viewport->setMaximumWidth (width);
+
+	drawColorInfo();
+}
+
+// =============================================================================
+// -----------------------------------------------------------------------------
+ColorSelector::~ColorSelector()
+{
+	delete ui;
+}
+
+// =============================================================================
+// -----------------------------------------------------------------------------
+void ColorSelector::drawScene()
+{
+	const int numCols = g_numColumns;
+	const int square = g_squareSize;
+	const int g_maxHeight = (numRows() * square);
+	QRect sceneRect (0, 0, viewportWidth(), g_maxHeight);
+
+	m_scene->setSceneRect (sceneRect);
+	ui->viewport->setSceneRect (sceneRect);
+
+	const double penWidth = 1.0f;
+
+	// Draw the color rectangles.
+	m_scene->clear();
+
+	for (int i = 0; i < MAX_COLORS; ++i)
+	{
+		LDColor* info = ::getColor (i);
+
+		if (!info)
+			continue;
+
+		const double x = (i % numCols) * square;
+		const double y = (i / numCols) * square;
+		const double w = square - (penWidth / 2);
+
+		QColor col = info->faceColor;
+
+		if (i == maincolor)
+		{
+			// Use the user preferences for main color here
+			col = QColor (gl_maincolor);
+			col.setAlpha (gl_maincolor_alpha * 255.0f);
+		}
+
+		QPen pen (info->edgeColor, penWidth, Qt::SolidLine, Qt::FlatCap, Qt::MiterJoin);
+		m_scene->addRect (x, y, w, w, pen, col);
+		QGraphicsTextItem* numtext = m_scene->addText (fmt ("%1", i));
+		numtext->setDefaultTextColor ( (luma (col) < 80) ? Qt::white : Qt::black);
+		numtext->setPos (x, y);
+
+		if (getSelection() && i == getSelection()->index)
+		{
+			auto curspic = m_scene->addPixmap (getIcon ("colorcursor"));
+			curspic->setPos (x, y);
+		}
+	}
+}
+
+// =============================================================================
+// -----------------------------------------------------------------------------
+int ColorSelector::numRows() const
+{
+	return (MAX_COLORS / g_numColumns);
+}
+
+// =============================================================================
+// -----------------------------------------------------------------------------
+int ColorSelector::viewportWidth() const
+{
+	return g_numColumns * g_squareSize + 21;
+}
+
+// =============================================================================
+// -----------------------------------------------------------------------------
+void ColorSelector::drawColorInfo()
+{
+	if (!getSelection())
+	{
+		ui->colorLabel->setText ("---");
+		return;
+	}
+
+	ui->colorLabel->setText (fmt ("%1 - %2", getSelection()->index, getSelection()->name));
+}
+
+// =============================================================================
+// -----------------------------------------------------------------------------
+void ColorSelector::resizeEvent (QResizeEvent* ev)
+{
+	// If this is the first resize, check if we need to scroll down to see the
+	// currently selected color. We cannot do this in the constructor because the
+	// height is not set properly there.
+	if (m_firstResize)
+	{
+		int visibleColors = (ui->viewport->height() / g_squareSize) * g_numColumns;
+
+		if (getSelection() && getSelection()->index >= visibleColors)
+		{
+			int y = (getSelection()->index / g_numColumns) * g_squareSize;
+			ui->viewport->verticalScrollBar()->setValue (y);
+		}
+
+		m_firstResize = false;
+	}
+
+	(void) ev;
+	drawScene();
+}
+
+// =============================================================================
+// -----------------------------------------------------------------------------
+void ColorSelector::mousePressEvent (QMouseEvent* event)
+{
+	QPointF scenepos = ui->viewport->mapToScene (event->pos());
+
+	int x = (scenepos.x() - (g_squareSize / 2)) / g_squareSize;
+	int y = (scenepos.y() - (g_squareSize / 2)) / g_squareSize;
+	int idx = (y * g_numColumns) + x;
+
+	LDColor* col = ::getColor (idx);
+
+	if (!col)
+		return;
+
+	setSelection (col);
+	drawScene();
+	drawColorInfo();
+}
+
+// =============================================================================
+// -----------------------------------------------------------------------------
+bool ColorSelector::selectColor (int& val, int defval, QWidget* parent)
+{
+	ColorSelector dlg (defval, parent);
+
+	if (dlg.exec() && dlg.getSelection() != null)
+	{
+		val = dlg.getSelection()->index;
+		return true;
+	}
+
+	return false;
+}
\ No newline at end of file

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/ColorSelector.h	Tue Jan 21 02:09:14 2014 +0200
@@ -0,0 +1,54 @@
+/*
+ *  LDForge: LDraw parts authoring CAD
+ *  Copyright (C) 2013, 2014 Santeri Piippo
+ *
+ *  This program is free software: you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation, either version 3 of the License, or
+ *  (at your option) any later version.
+ *
+ *  This program is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#ifndef LDFORGE_COLORSELECTOR_H
+#define LDFORGE_COLORSELECTOR_H
+
+#include <QDialog>
+#include "Main.h"
+
+class LDColor;
+class Ui_ColorSelUI;
+class QGraphicsScene;
+
+class ColorSelector : public QDialog
+{
+	Q_OBJECT
+	PROPERTY (private,	LDColor*,	Selection,	NO_OPS,	STOCK_WRITE)
+
+	public:
+		explicit ColorSelector (int defval = -1, QWidget* parent = null);
+		virtual ~ColorSelector();
+		static bool selectColor (int& val, int defval = -1, QWidget* parent = null);
+
+	protected:
+		void mousePressEvent (QMouseEvent* event);
+		void resizeEvent (QResizeEvent* ev);
+
+	private:
+		Ui_ColorSelUI* ui;
+		QGraphicsScene* m_scene;
+		bool m_firstResize;
+
+		int numRows() const;
+		int viewportWidth() const;
+		void drawScene();
+		void drawColorInfo();
+};
+
+#endif // LDFORGE_COLORSELECTOR_H

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/Colors.cc	Tue Jan 21 02:09:14 2014 +0200
@@ -0,0 +1,82 @@
+/*
+ *  LDForge: LDraw parts authoring CAD
+ *  Copyright (C) 2013, 2014 Santeri Piippo
+ *
+ *  This program is free software: you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation, either version 3 of the License, or
+ *  (at your option) any later version.
+ *
+ *  This program is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ *  =====================================================================
+ *
+ *  colors.cpp: LDraw color management. LDConfig.ldr parsing is not here!
+ *  TODO: Make LDColor more full-fledged, add support for direct colors.
+ *  TODO: g_LDColors should probably be a map.
+ */
+
+#include "Main.h"
+#include "Colors.h"
+#include "Document.h"
+#include "Misc.h"
+#include "MainWindow.h"
+#include "LDConfig.h"
+#include <QColor>
+
+static LDColor* g_LDColors[MAX_COLORS];
+
+// =============================================================================
+// -----------------------------------------------------------------------------
+void initColors()
+{
+	LDColor* col;
+	log ("%1: initializing color information.\n", __func__);
+
+	// Always make sure there's 16 and 24 available. They're special like that.
+	col = new LDColor;
+	col->faceColor = col->hexcode = "#AAAAAA";
+	col->edgeColor = Qt::black;
+	g_LDColors[maincolor] = col;
+
+	col = new LDColor;
+	col->faceColor = col->edgeColor = col->hexcode = "#000000";
+	g_LDColors[edgecolor] = col;
+
+	parseLDConfig();
+}
+
+// =============================================================================
+// -----------------------------------------------------------------------------
+LDColor* getColor (int colnum)
+{
+	// Check bounds
+	if (colnum < 0 || colnum >= MAX_COLORS)
+		return null;
+
+	return g_LDColors[colnum];
+}
+
+// =============================================================================
+// -----------------------------------------------------------------------------
+void setColor (int colnum, LDColor* col)
+{
+	if (colnum < 0 || colnum >= MAX_COLORS)
+		return;
+
+	g_LDColors[colnum] = col;
+}
+
+// =============================================================================
+// -----------------------------------------------------------------------------
+int luma (QColor& col)
+{
+	return (0.2126f * col.red()) +
+		   (0.7152f * col.green()) +
+		   (0.0722f * col.blue());
+}

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/Colors.h	Tue Jan 21 02:09:14 2014 +0200
@@ -0,0 +1,46 @@
+/*
+ *  LDForge: LDraw parts authoring CAD
+ *  Copyright (C) 2013, 2014 Santeri Piippo
+ *
+ *  This program is free software: you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation, either version 3 of the License, or
+ *  (at your option) any later version.
+ *
+ *  This program is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#ifndef LDFORGE_COLORS_H
+#define LDFORGE_COLORS_H
+
+#include <QColor>
+#include "Main.h"
+
+#define MAX_COLORS 512
+
+class LDColor
+{
+	public:
+		QString name, hexcode;
+		QColor faceColor, edgeColor;
+		int index;
+};
+
+void initColors();
+int luma (QColor& col);
+
+// Safely gets a color with the given number or null if no such color.
+LDColor* getColor (int colnum);
+void setColor (int colnum, LDColor* col);
+
+// Main and edge color identifiers
+static const int maincolor = 16;
+static const int edgecolor = 24;
+
+#endif // LDFORGE_COLORS_H

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/Configuration.cc	Tue Jan 21 02:09:14 2014 +0200
@@ -0,0 +1,178 @@
+/*
+ *  LDForge: LDraw parts authoring CAD
+ *  Copyright (C) 2013, 2014 Santeri Piippo
+ *
+ *  This program is free software: you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation, either version 3 of the License, or
+ *  (at your option) any later version.
+ *
+ *  This program is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ *  =====================================================================
+ *
+ *  config.cpp: Configuration management. I don't like how unsafe QSettings
+ *  is so this implements a type-safer and identifer-safer wrapping system of
+ *  configuration variables. QSettings is used underlyingly, this is a matter
+ *  of interface.
+ */
+
+#include <errno.h>
+#include <QDir>
+#include <QTextStream>
+#include <QSettings>
+#include "Main.h"
+#include "Configuration.h"
+#include "Misc.h"
+#include "MainWindow.h"
+#include "Document.h"
+
+#ifdef _WIN32
+# define EXTENSION ".ini"
+#else
+# define EXTENSION ".cfg"
+#endif // _WIN32
+
+Config*							g_configPointers[MAX_CONFIG];
+static int						g_cfgPointerCursor = 0;
+static QMap<QString, Config*>	g_configsByName;
+static QList<Config*>			g_configs;
+
+// =============================================================================
+// Get the QSettings object.
+// -----------------------------------------------------------------------------
+static QSettings* getSettingsObject()
+{
+	QString path = qApp->applicationDirPath() + "/" UNIXNAME EXTENSION;
+	return new QSettings (path, QSettings::IniFormat);
+}
+
+Config::Config (QString name) :
+	m_Name (name) {}
+
+// =============================================================================
+// Load the configuration from file
+// -----------------------------------------------------------------------------
+bool Config::load()
+{
+	QSettings* settings = getSettingsObject();
+	log ("config::load: Loading configuration file from %1\n", settings->fileName());
+
+	for (Config* cfg : g_configPointers)
+	{
+		if (!cfg)
+			break;
+
+		QVariant val = settings->value (cfg->getName(), cfg->getDefaultAsVariant());
+		cfg->loadFromVariant (val);
+		g_configsByName[cfg->getName()] = cfg;
+		g_configs << cfg;
+	}
+
+	settings->deleteLater();
+	return true;
+}
+
+// =============================================================================
+// Save the configuration to disk
+// -----------------------------------------------------------------------------
+bool Config::save()
+{
+	QSettings* settings = getSettingsObject();
+	log ("Saving configuration to %1...\n", settings->fileName());
+
+	for (Config* cfg : g_configs)
+	{
+		if (!cfg->isDefault())
+			settings->setValue (cfg->getName(), cfg->toVariant());
+		else
+			settings->remove (cfg->getName());
+	}
+
+	settings->sync();
+	settings->deleteLater();
+	return true;
+}
+
+// =============================================================================
+// Reset configuration to defaults.
+// -----------------------------------------------------------------------------
+void Config::reset()
+{
+	for (Config* cfg : g_configs)
+		cfg->resetValue();
+}
+
+// =============================================================================
+// Where is the configuration file located at?
+// -----------------------------------------------------------------------------
+QString Config::filepath (QString file)
+{
+	return Config::dirpath() + DIRSLASH + file;
+}
+
+// =============================================================================
+// Directory of the configuration file.
+// -----------------------------------------------------------------------------
+QString Config::dirpath()
+{
+	QSettings* cfg = getSettingsObject();
+	return dirname (cfg->fileName());
+}
+
+// =============================================================================
+// We cannot just add config objects to a list or vector because that would rely
+// on the vector's c-tor being called before the configs' c-tors. With global
+// variables we cannot assume that, therefore we need to use a C-style array here.
+// -----------------------------------------------------------------------------
+void Config::addToArray (Config* ptr)
+{
+	if (g_cfgPointerCursor == 0)
+		memset (g_configPointers, 0, sizeof g_configPointers);
+
+	assert (g_cfgPointerCursor < MAX_CONFIG);
+	g_configPointers[g_cfgPointerCursor++] = ptr;
+}
+
+// =============================================================================
+// -----------------------------------------------------------------------------
+template<class T> T* getConfigByName (QString name, Config::Type type)
+{
+	auto it = g_configsByName.find (name);
+
+	if (it == g_configsByName.end())
+		return null;
+
+	Config* cfg = it.value();
+
+	if (cfg->getType() != type)
+	{
+		fprint (stderr, "type of %1 is %2, not %3\n", name, cfg->getType(), type);
+		abort();
+	}
+
+	return reinterpret_cast<T*> (cfg);
+}
+
+// =============================================================================
+// -----------------------------------------------------------------------------
+#undef IMPLEMENT_CONFIG
+
+#define IMPLEMENT_CONFIG(NAME)										\
+	NAME##Config* NAME##Config::getByName (QString name)			\
+	{																\
+		return getConfigByName<NAME##Config> (name, E##NAME##Type);	\
+	}
+
+IMPLEMENT_CONFIG (Int)
+IMPLEMENT_CONFIG (String)
+IMPLEMENT_CONFIG (Bool)
+IMPLEMENT_CONFIG (Float)
+IMPLEMENT_CONFIG (List)
+IMPLEMENT_CONFIG (KeySequence)
+IMPLEMENT_CONFIG (Vertex)

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/Configuration.h	Tue Jan 21 02:09:14 2014 +0200
@@ -0,0 +1,192 @@
+/*
+ *  LDForge: LDraw parts authoring CAD
+ *  Copyright (C) 2013, 2014 Santeri Piippo
+ *
+ *  This program is free software: you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation, either version 3 of the License, or
+ *  (at your option) any later version.
+ *
+ *  This program is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#ifndef LDFORGE_CONFIG_H
+#define LDFORGE_CONFIG_H
+
+#include "PropertyMacro.h"
+#include "Types.h"
+
+// =============================================================================
+#include <QString>
+#include <QVariant>
+#include <QKeySequence>
+class QSettings;
+
+#define MAX_INI_LINE 512
+#define MAX_CONFIG 512
+
+#define cfg(T, NAME, DEFAULT) \
+	Config::T##Type NAME; \
+	T##Config config_##NAME (&NAME, #NAME, DEFAULT);
+
+#define extern_cfg(T, NAME) extern Config::T##Type NAME;
+
+// =========================================================
+class Config
+{
+	PROPERTY (private, QString, Name, STR_OPS, STOCK_WRITE)
+
+	public:
+		enum Type
+		{
+			EIntType,
+			EStringType,
+			EFloatType,
+			EBoolType,
+			EKeySequenceType,
+			EListType,
+			EVertexType,
+		};
+
+		using IntType			= int;
+		using StringType		= QString;
+		using FloatType			= float;
+		using BoolType			= bool;
+		using KeySequenceType	= QKeySequence;
+		using ListType			= QList<QVariant>;
+		using VertexType		= Vertex;
+
+		Config (QString name);
+
+		virtual QVariant	getDefaultAsVariant() const = 0;
+		virtual Type		getType() const = 0;
+		virtual bool		isDefault() const = 0;
+		virtual void		loadFromVariant (const QVariant& val) = 0;
+		virtual void		resetValue() = 0;
+		virtual QVariant	toVariant() const = 0;
+
+		// ------------------------------------------
+		static bool load();
+		static bool save();
+		static void reset();
+		static QString dirpath();
+		static QString filepath (QString file);
+
+	protected:
+		static void addToArray (Config* ptr);
+};
+
+// =============================================================================
+#define IMPLEMENT_CONFIG(NAME)													\
+public:																			\
+	using ValueType = Config::NAME##Type;										\
+																				\
+	NAME##Config (ValueType* valueptr, QString name, ValueType def) :			\
+		Config (name),															\
+		m_valueptr (valueptr),													\
+		m_default (def)															\
+	{																			\
+		Config::addToArray (this);												\
+		*m_valueptr = def;														\
+	}																			\
+																				\
+	inline ValueType getValue() const											\
+	{																			\
+		return *m_valueptr;														\
+	}																			\
+																				\
+	inline void setValue (ValueType val)										\
+	{																			\
+		*m_valueptr = val;														\
+	}																			\
+																				\
+	virtual Config::Type getType() const										\
+	{																			\
+		return Config::E##NAME##Type;											\
+	}																			\
+																				\
+	virtual void resetValue()													\
+	{																			\
+		*m_valueptr = m_default;												\
+	}																			\
+																				\
+	virtual const ValueType& getDefault() const									\
+	{																			\
+		return m_default;														\
+	}																			\
+																				\
+	virtual bool isDefault() const												\
+	{																			\
+		return *m_valueptr == m_default;										\
+	}																			\
+																				\
+	virtual void loadFromVariant (const QVariant& val)							\
+	{																			\
+		*m_valueptr = val.value<ValueType>();									\
+	}																			\
+																				\
+	virtual QVariant toVariant() const											\
+	{																			\
+		return QVariant::fromValue<ValueType> (*m_valueptr);					\
+	}																			\
+																				\
+	virtual QVariant getDefaultAsVariant() const								\
+	{																			\
+		return QVariant::fromValue<ValueType> (m_default);						\
+	}																			\
+																				\
+	static NAME##Config* getByName (QString name);								\
+																				\
+private:																		\
+	ValueType*	m_valueptr;														\
+	ValueType	m_default;
+
+// =============================================================================
+class IntConfig : public Config
+{
+	IMPLEMENT_CONFIG (Int)
+};
+
+// =============================================================================
+class StringConfig : public Config
+{
+	IMPLEMENT_CONFIG (String)
+};
+
+// =============================================================================
+class FloatConfig : public Config
+{
+	IMPLEMENT_CONFIG (Float)
+};
+
+// =============================================================================
+class BoolConfig : public Config
+{
+	IMPLEMENT_CONFIG (Bool)
+};
+
+// =============================================================================
+class KeySequenceConfig : public Config
+{
+	IMPLEMENT_CONFIG (KeySequence)
+};
+
+// =============================================================================
+class ListConfig : public Config
+{
+	IMPLEMENT_CONFIG (List)
+};
+
+// =============================================================================
+class VertexConfig : public Config
+{
+	IMPLEMENT_CONFIG (Vertex)
+};
+
+#endif // LDFORGE_CONFIG_H

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/ConfigurationDialog.cc	Tue Jan 21 02:09:14 2014 +0200
@@ -0,0 +1,800 @@
+/*
+ *  LDForge: LDraw parts authoring CAD
+ *  Copyright (C) 2013, 2014 Santeri Piippo
+ *
+ *  This program is free software: you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation, either version 3 of the License, or
+ *  (at your option) any later version.
+ *
+ *  This program is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ *  =====================================================================
+ *
+ *  configDialog.cpp: Settings dialog and everything related to it.
+ *  Actual configuration core is in config.cpp.
+ */
+
+#include <QGridLayout>
+#include <QFileDialog>
+#include <QColorDialog>
+#include <QBoxLayout>
+#include <QKeyEvent>
+#include <QGroupBox>
+#include <QDoubleSpinBox>
+#include <QLineEdit>
+#include <QCheckBox>
+#include "Main.h"
+#include "ConfigurationDialog.h"
+#include "Document.h"
+#include "Configuration.h"
+#include "Misc.h"
+#include "Colors.h"
+#include "ColorSelector.h"
+#include "GLRenderer.h"
+#include "ui_config.h"
+#include "moc_ConfigurationDialog.cpp"
+
+extern_cfg (String, gl_bgcolor);
+extern_cfg (String, gl_maincolor);
+extern_cfg (Bool, lv_colorize);
+extern_cfg (Bool, gl_colorbfc);
+extern_cfg (Float, gl_maincolor_alpha);
+extern_cfg (Int, gl_linethickness);
+extern_cfg (String, gui_colortoolbar);
+extern_cfg (Bool, edit_schemanticinline);
+extern_cfg (Bool, gl_blackedges);
+extern_cfg (Bool, gl_aa);
+extern_cfg (Bool, gui_implicitfiles);
+extern_cfg (String, net_downloadpath);
+extern_cfg (Bool, net_guesspaths);
+extern_cfg (Bool, net_autoclose);
+extern_cfg (Bool, gl_logostuds);
+extern_cfg (Bool,	gl_linelengths);
+extern_cfg (String, ld_defaultname);
+extern_cfg (String, ld_defaultuser);
+extern_cfg (Int, ld_defaultlicense);
+extern_cfg (String, gl_selectcolor);
+extern_cfg (String, prog_ytruder);
+extern_cfg (String, prog_rectifier);
+extern_cfg (String, prog_intersector);
+extern_cfg (String, prog_coverer);
+extern_cfg (String, prog_isecalc);
+extern_cfg (String, prog_edger2);
+extern_cfg (Bool, prog_ytruder_wine);
+extern_cfg (Bool, prog_rectifier_wine);
+extern_cfg (Bool, prog_intersector_wine);
+extern_cfg (Bool, prog_coverer_wine);
+extern_cfg (Bool, prog_isecalc_wine);
+extern_cfg (Bool, prog_edger2_wine);
+
+const char* g_extProgPathFilter =
+#ifdef _WIN32
+	"Applications (*.exe)(*.exe);;All files (*.*)(*.*)";
+#else
+	"";
+#endif
+
+// =============================================================================
+// -----------------------------------------------------------------------------
+ConfigDialog::ConfigDialog (ConfigDialog::Tab deftab, QWidget* parent, Qt::WindowFlags f) :
+	QDialog (parent, f)
+{
+	assert (g_win != null);
+	ui = new Ui_ConfigUI;
+	ui->setupUi (this);
+
+	// Interface tab
+	setButtonBackground (ui->backgroundColorButton, gl_bgcolor);
+	connect (ui->backgroundColorButton, SIGNAL (clicked()),
+			 this, SLOT (slot_setGLBackground()));
+
+	setButtonBackground (ui->mainColorButton, gl_maincolor);
+	connect (ui->mainColorButton, SIGNAL (clicked()),
+			 this, SLOT (slot_setGLForeground()));
+
+	setButtonBackground (ui->selColorButton, gl_selectcolor);
+	connect (ui->selColorButton, SIGNAL (clicked()),
+			 this, SLOT (slot_setGLSelectColor()));
+
+	ui->mainColorAlpha->setValue (gl_maincolor_alpha * 10.0f);
+	ui->lineThickness->setValue (gl_linethickness);
+	ui->colorizeObjects->setChecked (lv_colorize);
+	ui->colorBFC->setChecked (gl_colorbfc);
+	ui->blackEdges->setChecked (gl_blackedges);
+	ui->m_aa->setChecked (gl_aa);
+	ui->implicitFiles->setChecked (gui_implicitfiles);
+	ui->m_logostuds->setChecked (gl_logostuds);
+	ui->linelengths->setChecked (gl_linelengths);
+
+	int i = 0;
+
+	for (QAction* act : g_win->findChildren<QAction*>())
+	{
+		KeySequenceConfig* cfg = g_win->shortcutForAction (act);
+
+		if (cfg)
+			addShortcut (*cfg, act, i);
+	}
+
+	ui->shortcutsList->setSortingEnabled (true);
+	ui->shortcutsList->sortItems();
+
+	connect (ui->shortcut_set, SIGNAL (clicked()), this, SLOT (slot_setShortcut()));
+	connect (ui->shortcut_reset, SIGNAL (clicked()), this, SLOT (slot_resetShortcut()));
+	connect (ui->shortcut_clear, SIGNAL (clicked()), this, SLOT (slot_clearShortcut()));
+
+	quickColors = quickColorsFromConfig();
+	updateQuickColorList();
+
+	connect (ui->quickColor_add, SIGNAL (clicked()), this, SLOT (slot_setColor()));
+	connect (ui->quickColor_remove, SIGNAL (clicked()), this, SLOT (slot_delColor()));
+	connect (ui->quickColor_edit, SIGNAL (clicked()), this, SLOT (slot_setColor()));
+	connect (ui->quickColor_addSep, SIGNAL (clicked()), this, SLOT (slot_addColorSeparator()));
+	connect (ui->quickColor_moveUp, SIGNAL (clicked()), this, SLOT (slot_moveColor()));
+	connect (ui->quickColor_moveDown, SIGNAL (clicked()), this, SLOT (slot_moveColor()));
+	connect (ui->quickColor_clear, SIGNAL (clicked()), this, SLOT (slot_clearColors()));
+
+	ui->downloadPath->setText (net_downloadpath);
+	ui->guessNetPaths->setChecked (net_guesspaths);
+	ui->autoCloseNetPrompt->setChecked (net_autoclose);
+	connect (ui->findDownloadPath, SIGNAL (clicked (bool)), this, SLOT (slot_findDownloadFolder()));
+
+	ui->m_profileName->setText (ld_defaultname);
+	ui->m_profileUsername->setText (ld_defaultuser);
+	ui->m_profileLicense->setCurrentIndex (ld_defaultlicense);
+
+	initGrids();
+	initExtProgs();
+	selectPage (deftab);
+
+	connect (ui->buttonBox, SIGNAL (clicked (QAbstractButton*)),
+		this, SLOT (buttonClicked (QAbstractButton*)));
+
+	connect (ui->m_pages, SIGNAL (currentChanged (int)),
+		this, SLOT (selectPage (int)));
+
+	connect (ui->m_pagelist, SIGNAL (currentRowChanged (int)),
+		this, SLOT (selectPage (int)));
+}
+
+// =============================================================================
+// -----------------------------------------------------------------------------
+ConfigDialog::~ConfigDialog()
+{
+	delete ui;
+}
+
+// =============================================================================
+// -----------------------------------------------------------------------------
+void ConfigDialog::selectPage (int row)
+{
+	ui->m_pagelist->setCurrentRow (row);
+	ui->m_pages->setCurrentIndex (row);
+}
+
+// =============================================================================
+// Adds a shortcut entry to the list of shortcuts.
+// -----------------------------------------------------------------------------
+void ConfigDialog::addShortcut (KeySequenceConfig& cfg, QAction* act, int& i)
+{
+	ShortcutListItem* item = new ShortcutListItem;
+	item->setIcon (act->icon());
+	item->setKeyConfig (&cfg);
+	item->setAction (act);
+	setShortcutText (item);
+
+	// If the action doesn't have a valid icon, use an empty one
+	// so that the list is kept aligned.
+	if (act->icon().isNull())
+		item->setIcon (getIcon ("empty"));
+
+	ui->shortcutsList->insertItem (i++, item);
+}
+
+// =============================================================================
+// Initializes the table of grid stuff
+// -----------------------------------------------------------------------------
+void ConfigDialog::initGrids()
+{
+	QGridLayout* gridlayout = new QGridLayout;
+	QLabel* xlabel = new QLabel ("X"),
+	*ylabel = new QLabel ("Y"),
+	*zlabel = new QLabel ("Z"),
+	*anglabel = new QLabel ("Angle");
+	int i = 1;
+
+	for (QLabel* label : initlist<QLabel*> ({xlabel, ylabel, zlabel, anglabel}))
+	{
+		label->setAlignment (Qt::AlignCenter);
+		gridlayout->addWidget (label, 0, i++);
+	}
+
+	for (int i = 0; i < g_NumGrids; ++i)
+	{
+		// Icon
+		lb_gridIcons[i] = new QLabel;
+		lb_gridIcons[i]->setPixmap (getIcon (fmt ("grid-%1", QString (g_GridInfo[i].name).toLower())));
+
+		// Text label
+		lb_gridLabels[i] = new QLabel (fmt ("%1:", g_GridInfo[i].name));
+
+		QHBoxLayout* labellayout = new QHBoxLayout;
+		labellayout->addWidget (lb_gridIcons[i]);
+		labellayout->addWidget (lb_gridLabels[i]);
+		gridlayout->addLayout (labellayout, i + 1, 0);
+
+		// Add the widgets
+		for (int j = 0; j < 4; ++j)
+		{
+			dsb_gridData[i][j] = new QDoubleSpinBox;
+
+			// Set the maximum angle
+			if (j == 3)
+				dsb_gridData[i][j]->setMaximum (360);
+
+			dsb_gridData[i][j]->setValue (*g_GridInfo[i].confs[j]);
+			gridlayout->addWidget (dsb_gridData[i][j], i + 1, j + 1);
+		}
+	}
+
+	ui->grids->setLayout (gridlayout);
+}
+
+// =============================================================================
+// -----------------------------------------------------------------------------
+static struct LDExtProgInfo
+{
+	const QString		name,
+						iconname;
+	QString* const		path;
+	QLineEdit*		input;
+	QPushButton*	setPathButton;
+#ifndef _WIN32
+	bool* const		wine;
+	QCheckBox*		wineBox;
+#endif // _WIN32
+} g_LDExtProgInfo[] =
+{
+#ifndef _WIN32
+# define EXTPROG(NAME, LOWNAME) { #NAME, #LOWNAME, &prog_##LOWNAME, null, null, &prog_##LOWNAME##_wine, null },
+#else
+# define EXTPROG(NAME, LOWNAME) { #NAME, #LOWNAME, &prog_##LOWNAME, null, null },
+#endif
+	EXTPROG (Ytruder, ytruder)
+	EXTPROG (Rectifier, rectifier)
+	EXTPROG (Intersector, intersector)
+	EXTPROG (Isecalc, isecalc)
+	EXTPROG (Coverer, coverer)
+	EXTPROG (Edger2, edger2)
+#undef EXTPROG
+};
+
+// =============================================================================
+// Initializes the stuff in the ext programs tab
+// -----------------------------------------------------------------------------
+void ConfigDialog::initExtProgs()
+{
+	QGridLayout* pathsLayout = new QGridLayout;
+	int row = 0;
+
+	for (LDExtProgInfo& info : g_LDExtProgInfo)
+	{
+		QLabel* icon = new QLabel,
+		*progLabel = new QLabel (info.name);
+		QLineEdit* input = new QLineEdit;
+		QPushButton* setPathButton = new QPushButton;
+
+		icon->setPixmap (getIcon (info.iconname));
+		input->setText (*info.path);
+		setPathButton->setIcon (getIcon ("folder"));
+		info.input = input;
+		info.setPathButton = setPathButton;
+
+		connect (setPathButton, SIGNAL (clicked()), this, SLOT (slot_setExtProgPath()));
+
+		pathsLayout->addWidget (icon, row, 0);
+		pathsLayout->addWidget (progLabel, row, 1);
+		pathsLayout->addWidget (input, row, 2);
+		pathsLayout->addWidget (setPathButton, row, 3);
+
+#ifndef _WIN32
+		QCheckBox* wineBox = new QCheckBox ("Wine");
+		wineBox->setChecked (*info.wine);
+		info.wineBox = wineBox;
+		pathsLayout->addWidget (wineBox, row, 4);
+#endif
+
+		++row;
+	}
+
+	ui->extProgs->setLayout (pathsLayout);
+}
+
+// =============================================================================
+// Set the settings based on widget data.
+// -----------------------------------------------------------------------------
+void ConfigDialog::applySettings()
+{
+	// Apply configuration
+	lv_colorize = ui->colorizeObjects->isChecked();
+	gl_colorbfc = ui->colorBFC->isChecked();
+	gl_blackedges = ui->blackEdges->isChecked();
+	gl_maincolor_alpha = ( (double) ui->mainColorAlpha->value()) / 10.0f;
+	gl_linethickness = ui->lineThickness->value();
+	gui_implicitfiles = ui->implicitFiles->isChecked();
+	net_downloadpath = ui->downloadPath->text();
+	net_guesspaths = ui->guessNetPaths->isChecked();
+	net_autoclose = ui->autoCloseNetPrompt->isChecked();
+	gl_logostuds = ui->m_logostuds->isChecked();
+	gl_linelengths = ui->linelengths->isChecked();
+	ld_defaultuser = ui->m_profileUsername->text();
+	ld_defaultname = ui->m_profileName->text();
+	ld_defaultlicense = ui->m_profileLicense->currentIndex();
+	gl_aa = ui->m_aa->isChecked();
+
+	// Rebuild the quick color toolbar
+	g_win->setQuickColors (quickColors);
+	gui_colortoolbar = quickColorString();
+
+	// Set the grid settings
+	for (int i = 0; i < g_NumGrids; ++i)
+		for (int j = 0; j < 4; ++j)
+			*g_GridInfo[i].confs[j] = dsb_gridData[i][j]->value();
+
+	// Apply key shortcuts
+	g_win->updateActionShortcuts();
+
+	// Ext program settings
+	for (const LDExtProgInfo& info : g_LDExtProgInfo)
+	{
+		*info.path = info.input->text();
+
+#ifndef _WIN32
+		*info.wine = info.wineBox->isChecked();
+#endif // _WIN32
+	}
+
+	Config::save();
+	reloadAllSubfiles();
+	loadLogoedStuds();
+	g_win->R()->setBackground();
+	g_win->doFullRefresh();
+	g_win->updateToolBars();
+	g_win->updateDocumentList();
+}
+
+// =============================================================================
+// A dialog button was clicked
+// -----------------------------------------------------------------------------
+void ConfigDialog::buttonClicked (QAbstractButton* button)
+{
+	typedef QDialogButtonBox QDDB;
+	QDialogButtonBox* dbb = ui->buttonBox;
+
+	if (button == dbb->button (QDDB::Ok))
+	{
+		applySettings();
+		accept();
+	} elif (button == dbb->button (QDDB::Apply))
+	{
+		applySettings();
+	} elif (button == dbb->button (QDDB::Cancel))
+	{
+		reject();
+	}
+}
+
+// =============================================================================
+// Update the list of color toolbar items in the quick color tab.
+// -----------------------------------------------------------------------------
+void ConfigDialog::updateQuickColorList (LDQuickColor* sel)
+{
+	for (QListWidgetItem * item : quickColorItems)
+		delete item;
+
+	quickColorItems.clear();
+
+	// Init table items
+	for (LDQuickColor& entry : quickColors)
+	{
+		QListWidgetItem* item = new QListWidgetItem;
+
+		if (entry.isSeparator())
+		{
+			item->setText ("--------");
+			item->setIcon (getIcon ("empty"));
+		}
+		else
+		{
+			LDColor* col = entry.getColor();
+
+			if (col == null)
+			{
+				item->setText ("[[unknown color]]");
+				item->setIcon (getIcon ("error"));
+			}
+			else
+			{
+				item->setText (col->name);
+				item->setIcon (makeColorIcon (col, 16));
+			}
+		}
+
+		ui->quickColorList->addItem (item);
+		quickColorItems << item;
+
+		if (sel && &entry == sel)
+		{
+			ui->quickColorList->setCurrentItem (item);
+			ui->quickColorList->scrollToItem (item);
+		}
+	}
+}
+
+// =============================================================================
+// Quick colors: add or edit button was clicked.
+// -----------------------------------------------------------------------------
+void ConfigDialog::slot_setColor()
+{
+	LDQuickColor* entry = null;
+	QListWidgetItem* item = null;
+	const bool isNew = static_cast<QPushButton*> (sender()) == ui->quickColor_add;
+
+	if (isNew == false)
+	{
+		item = getSelectedQuickColor();
+
+		if (!item)
+			return;
+
+		int i = getItemRow (item, quickColorItems);
+		entry = &quickColors[i];
+
+		if (entry->isSeparator() == true)
+			return; // don't color separators
+	}
+
+	int defval = entry ? entry->getColor()->index : -1;
+	int val;
+
+	if (ColorSelector::selectColor (val, defval, this) == false)
+		return;
+
+	if (entry)
+		entry->setColor (getColor (val));
+	else
+	{
+		LDQuickColor entry (getColor (val), null);
+
+		item = getSelectedQuickColor();
+		int idx = (item) ? getItemRow (item, quickColorItems) + 1 : quickColorItems.size();
+
+		quickColors.insert (idx, entry);
+		entry = quickColors[idx];
+	}
+
+	updateQuickColorList (entry);
+}
+
+// =============================================================================
+// Remove a quick color
+// -----------------------------------------------------------------------------
+void ConfigDialog::slot_delColor()
+{
+	if (ui->quickColorList->selectedItems().isEmpty())
+		return;
+
+	QListWidgetItem* item = ui->quickColorList->selectedItems() [0];
+	quickColors.removeAt (getItemRow (item, quickColorItems));
+	updateQuickColorList();
+}
+
+// =============================================================================
+// Move a quick color up/down
+// -----------------------------------------------------------------------------
+void ConfigDialog::slot_moveColor()
+{
+	const bool up = (static_cast<QPushButton*> (sender()) == ui->quickColor_moveUp);
+
+	if (ui->quickColorList->selectedItems().isEmpty())
+		return;
+
+	QListWidgetItem* item = ui->quickColorList->selectedItems() [0];
+	int idx = getItemRow (item, quickColorItems);
+	int dest = up ? (idx - 1) : (idx + 1);
+
+	if (dest < 0 || dest >= quickColorItems.size())
+		return; // destination out of bounds
+
+	LDQuickColor tmp = quickColors[dest];
+	quickColors[dest] = quickColors[idx];
+	quickColors[idx] = tmp;
+
+	updateQuickColorList (&quickColors[dest]);
+}
+
+// =============================================================================
+// Add a separator to quick colors
+// -----------------------------------------------------------------------------
+void ConfigDialog::slot_addColorSeparator()
+{
+	quickColors << LDQuickColor::getSeparator();
+	updateQuickColorList (&quickColors[quickColors.size() - 1]);
+}
+
+// =============================================================================
+// Clear all quick colors
+// -----------------------------------------------------------------------------
+void ConfigDialog::slot_clearColors()
+{
+	quickColors.clear();
+	updateQuickColorList();
+}
+
+// =============================================================================
+// Pick a color and set the appropriate configuration option.
+// -----------------------------------------------------------------------------
+void ConfigDialog::pickColor (QString& conf, QPushButton* button)
+{
+	QColor col = QColorDialog::getColor (QColor (conf));
+
+	if (col.isValid())
+	{
+		int r = col.red(),
+			g = col.green(),
+			b = col.blue();
+
+		QString colname;
+		colname.sprintf ("#%.2X%.2X%.2X", r, g, b);
+		conf = colname;
+		setButtonBackground (button, colname);
+	}
+}
+
+// =============================================================================
+// -----------------------------------------------------------------------------
+void ConfigDialog::slot_setGLBackground()
+{
+	pickColor (gl_bgcolor, ui->backgroundColorButton);
+}
+
+// =============================================================================
+// -----------------------------------------------------------------------------
+void ConfigDialog::slot_setGLForeground()
+{
+	pickColor (gl_maincolor, ui->mainColorButton);
+}
+
+// =============================================================================
+// -----------------------------------------------------------------------------
+void ConfigDialog::slot_setGLSelectColor()
+{
+	pickColor (gl_selectcolor, ui->selColorButton);
+}
+
+// =============================================================================
+// Sets background color of a given button.
+// -----------------------------------------------------------------------------
+void ConfigDialog::setButtonBackground (QPushButton* button, QString value)
+{
+	button->setIcon (getIcon ("colorselect"));
+	button->setAutoFillBackground (true);
+	button->setStyleSheet (fmt ("background-color: %1", value));
+}
+
+// =============================================================================
+// Finds the given list widget item in the list of widget items given.
+// -----------------------------------------------------------------------------
+int ConfigDialog::getItemRow (QListWidgetItem* item, QList<QListWidgetItem*>& haystack)
+{
+	int i = 0;
+
+	for (QListWidgetItem* it : haystack)
+	{
+		if (it == item)
+			return i;
+
+		++i;
+	}
+
+	return -1;
+}
+
+// =============================================================================
+// Which quick color is currently selected?
+// -----------------------------------------------------------------------------
+QListWidgetItem* ConfigDialog::getSelectedQuickColor()
+{
+	if (ui->quickColorList->selectedItems().isEmpty())
+		return null;
+
+	return ui->quickColorList->selectedItems() [0];
+}
+
+// =============================================================================
+// Get the list of shortcuts selected
+// -----------------------------------------------------------------------------
+QList<ShortcutListItem*> ConfigDialog::getShortcutSelection()
+{
+	QList<ShortcutListItem*> out;
+
+	for (QListWidgetItem* entry : ui->shortcutsList->selectedItems())
+		out << static_cast<ShortcutListItem*> (entry);
+
+	return out;
+}
+
+// =============================================================================
+// Edit the shortcut of a given action.
+// -----------------------------------------------------------------------------
+void ConfigDialog::slot_setShortcut()
+{
+	QList<ShortcutListItem*> sel = getShortcutSelection();
+
+	if (sel.size() < 1)
+		return;
+
+	ShortcutListItem* item = sel[0];
+
+	if (KeySequenceDialog::staticDialog (item->getKeyConfig(), this))
+		setShortcutText (item);
+}
+
+// =============================================================================
+// Reset a shortcut to defaults
+// -----------------------------------------------------------------------------
+void ConfigDialog::slot_resetShortcut()
+{
+	QList<ShortcutListItem*> sel = getShortcutSelection();
+
+	for (ShortcutListItem* item : sel)
+	{
+		item->getKeyConfig()->reset();
+		setShortcutText (item);
+	}
+}
+
+// =============================================================================
+// Remove the shortcut of an action.
+// -----------------------------------------------------------------------------
+void ConfigDialog::slot_clearShortcut()
+{
+	QList<ShortcutListItem*> sel = getShortcutSelection();
+
+	for (ShortcutListItem* item : sel)
+	{
+		item->getKeyConfig()->setValue (QKeySequence());
+		setShortcutText (item);
+	}
+}
+
+// =============================================================================
+// Set the path of an external program
+// -----------------------------------------------------------------------------
+void ConfigDialog::slot_setExtProgPath()
+{
+	const LDExtProgInfo* info = null;
+
+	for (const LDExtProgInfo& it : g_LDExtProgInfo)
+	{
+		if (it.setPathButton == sender())
+		{
+			info = &it;
+			break;
+		}
+	}
+
+	assert (info != null);
+	QString fpath = QFileDialog::getOpenFileName (this, fmt ("Path to %1", info->name), *info->path, g_extProgPathFilter);
+
+	if (fpath.isEmpty())
+		return;
+
+	info->input->setText (fpath);
+}
+
+// =============================================================================
+// '...' button pressed for the download path
+// -----------------------------------------------------------------------------
+void ConfigDialog::slot_findDownloadFolder()
+{
+	QString dpath = QFileDialog::getExistingDirectory();
+	ui->downloadPath->setText (dpath);
+}
+
+// =============================================================================
+// Updates the text string for a given shortcut list item
+// -----------------------------------------------------------------------------
+void ConfigDialog::setShortcutText (ShortcutListItem* item)
+{
+	QAction* act = item->getAction();
+	QString label = act->iconText();
+	QString keybind = item->getKeyConfig()->getValue().toString();
+	item->setText (fmt ("%1 (%2)", label, keybind));
+}
+
+// =============================================================================
+// Gets the configuration string of the quick color toolbar
+// -----------------------------------------------------------------------------
+QString ConfigDialog::quickColorString()
+{
+	QString val;
+
+	for (const LDQuickColor& entry : quickColors)
+	{
+		if (val.length() > 0)
+			val += ':';
+
+		if (entry.isSeparator())
+			val += '|';
+		else
+			val += fmt ("%1", entry.getColor()->index);
+	}
+
+	return val;
+}
+
+// ===============================================================================================
+// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
+// ===============================================================================================
+// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
+// ===============================================================================================
+// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
+// ===============================================================================================
+KeySequenceDialog::KeySequenceDialog (QKeySequence seq, QWidget* parent, Qt::WindowFlags f) :
+	QDialog (parent, f), seq (seq)
+{
+	lb_output = new QLabel;
+	IMPLEMENT_DIALOG_BUTTONS
+
+	setWhatsThis (tr ("Into this dialog you can input a key sequence for use as a "
+		"shortcut in LDForge. Use OK to confirm the new shortcut and Cancel to "
+		"dismiss."));
+
+	QVBoxLayout* layout = new QVBoxLayout;
+	layout->addWidget (lb_output);
+	layout->addWidget (bbx_buttons);
+	setLayout (layout);
+
+	updateOutput();
+}
+
+// =============================================================================
+// -----------------------------------------------------------------------------
+bool KeySequenceDialog::staticDialog (KeySequenceConfig* cfg, QWidget* parent)
+{
+	KeySequenceDialog dlg (cfg->getValue(), parent);
+
+	if (dlg.exec() == false)
+		return false;
+
+	cfg->setValue (dlg.seq);
+	return true;
+}
+
+// =============================================================================
+// -----------------------------------------------------------------------------
+void KeySequenceDialog::updateOutput()
+{
+	QString shortcut = seq.toString();
+
+	if (seq == QKeySequence())
+		shortcut = "&lt;empty&gt;";
+
+	QString text = fmt ("<center><b>%1</b></center>", shortcut);
+	lb_output->setText (text);
+}
+
+// =============================================================================
+// -----------------------------------------------------------------------------
+void KeySequenceDialog::keyPressEvent (QKeyEvent* ev)
+{
+	seq = ev->key() + ev->modifiers();
+	updateOutput();
+}

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/ConfigurationDialog.h	Tue Jan 21 02:09:14 2014 +0200
@@ -0,0 +1,123 @@
+/*
+ *  LDForge: LDraw parts authoring CAD
+ *  Copyright (C) 2013, 2014 Santeri Piippo
+ *
+ *  This program is free software: you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation, either version 3 of the License, or
+ *  (at your option) any later version.
+ *
+ *  This program is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#ifndef LDFORGE_CONFIGDIALOG_H
+#define LDFORGE_CONFIGDIALOG_H
+
+#include "MainWindow.h"
+#include <QDialog>
+
+class Ui_ConfigUI;
+class QLabel;
+class QDoubleSpinBox;
+
+// =============================================================================
+class ShortcutListItem : public QListWidgetItem
+{
+	PROPERTY (public,	KeySequenceConfig*,	KeyConfig,	NO_OPS,	STOCK_WRITE)
+	PROPERTY (public,	QAction*,				Action,		NO_OPS,	STOCK_WRITE)
+
+	public:
+		explicit ShortcutListItem (QListWidget* view = null, int type = Type) :
+			QListWidgetItem (view, type) {}
+};
+
+// =============================================================================
+class ConfigDialog : public QDialog
+{
+	Q_OBJECT
+
+	public:
+		enum Tab
+		{
+			InterfaceTab,
+			ProfileTab,
+			ShortcutsTab,
+			QuickColorsTab,
+			GridsTab,
+			ExtProgsTab,
+			DownloadTab
+		};
+
+		explicit ConfigDialog (Tab deftab = InterfaceTab, QWidget* parent = null, Qt::WindowFlags f = 0);
+		virtual ~ConfigDialog();
+		float getGridValue (int i, int j) const;
+
+		QList<LDQuickColor> quickColors;
+		QDoubleSpinBox* dsb_gridData[3][4];
+
+	private:
+		Ui_ConfigUI* ui;
+		QLabel* lb_gridLabels[3];
+		QLabel* lb_gridIcons[3];
+		QList<QListWidgetItem*> quickColorItems;
+
+		void applySettings();
+		void addShortcut (KeySequenceConfig& cfg, QAction* act, int& i);
+		void setButtonBackground (QPushButton* button, QString value);
+		void pickColor (QString& conf, QPushButton* button);
+		void updateQuickColorList (LDQuickColor* sel = null);
+		void setShortcutText (ShortcutListItem* item);
+		int getItemRow (QListWidgetItem* item, QList<QListWidgetItem*>& haystack);
+		QString quickColorString();
+		QListWidgetItem* getSelectedQuickColor();
+		QList<ShortcutListItem*> getShortcutSelection();
+		void initGrids();
+		void initExtProgs();
+
+	private slots:
+		void slot_setGLBackground();
+		void slot_setGLForeground();
+		void slot_setGLSelectColor();
+		void slot_setShortcut();
+		void slot_resetShortcut();
+		void slot_clearShortcut();
+		void slot_setColor();
+		void slot_delColor();
+		void slot_addColorSeparator();
+		void slot_moveColor();
+		void slot_clearColors();
+		void slot_setExtProgPath();
+		void slot_findDownloadFolder();
+		void buttonClicked (QAbstractButton* button);
+		void selectPage (int row);
+};
+
+// =============================================================================
+// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
+// =============================================================================
+class KeySequenceDialog : public QDialog
+{
+	Q_OBJECT
+
+	public:
+		explicit KeySequenceDialog (QKeySequence seq, QWidget* parent = null, Qt::WindowFlags f = 0);
+		static bool staticDialog (KeySequenceConfig* cfg, QWidget* parent = null);
+
+		QLabel* lb_output;
+		QDialogButtonBox* bbx_buttons;
+		QKeySequence seq;
+
+	private:
+		void updateOutput();
+
+	private slots:
+		virtual void keyPressEvent (QKeyEvent* ev) override;
+};
+
+#endif // LDFORGE_CONFIGDIALOG_H

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/CrashCatcher.cc	Tue Jan 21 02:09:14 2014 +0200
@@ -0,0 +1,132 @@
+/*
+ *  LDForge: LDraw parts authoring CAD
+ *  Copyright (C) 2013, 2014 Santeri Piippo
+ *
+ *  This program is free software: you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation, either version 3 of the License, or
+ *  (at your option) any later version.
+ *
+ *  This program is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#ifdef __unix__
+
+#include <QString>
+#include <QProcess>
+#include <QTemporaryFile>
+#include <QMessageBox>
+#include <unistd.h>
+#include <signal.h>
+#include <sys/prctl.h>
+#include "CrashCatcher.h"
+#include "Types.h"
+#include "Dialogs.h"
+
+// Is the crash catcher active now?
+static bool g_crashCatcherActive = false;
+
+// If an assertion failed, what was it?
+static QString g_assertionFailure;
+
+// List of signals to catch and crash on
+static QList<int> g_signalsToCatch ({
+	SIGSEGV, // segmentation fault
+	SIGABRT, // abort() calls
+	SIGFPE, // floating point exceptions (e.g. division by zero)
+	SIGILL, // illegal instructions
+});
+
+// =============================================================================
+// -----------------------------------------------------------------------------
+static void handleCrash (int sig)
+{
+	printf ("%s: crashed with signal %d, launching gdb\n", __func__, sig);
+
+	if (g_crashCatcherActive)
+	{
+		printf ("caught signal while crash catcher is active!\n");
+		exit (149);
+	}
+
+	const pid_t pid = getpid();
+	QProcess proc;
+	QTemporaryFile commandsFile;
+
+	g_crashCatcherActive = true;
+
+	if (commandsFile.open())
+	{
+		commandsFile.write (fmt ("attach %1\n", pid).toLocal8Bit());
+		commandsFile.write (QString ("backtrace full\n").toLocal8Bit());
+		commandsFile.write (QString ("detach\n").toLocal8Bit());
+		commandsFile.write (QString ("quit").toLocal8Bit());
+		commandsFile.flush();
+		commandsFile.close();
+	}
+
+	QStringList args ({"-x", commandsFile.fileName()});
+
+	proc.start ("gdb", args);
+
+	// Linux doesn't allow ptrace to be used on anything but direct child processes
+	// so we need to use prctl to register an exception to this to allow GDB attach to us.
+	// We need to do this now and no earlier because only now we actually know GDB's PID.
+	prctl (PR_SET_PTRACER, proc.pid(), 0, 0, 0);
+
+	proc.waitForFinished (1000);
+	QString output = QString (proc.readAllStandardOutput());
+	QString err = QString (proc.readAllStandardError());
+
+	bombBox (fmt ("<h3>Program crashed with signal %1</h3>\n\n"
+		"%2"
+		"<p><b>GDB <tt>stdout</tt>:</b></p><pre>%3</pre>\n"
+		"<p><b>GDB <tt>stderr</tt>:</b></p><pre>%4</pre>",
+		sig, (!g_assertionFailure.isEmpty()) ? g_assertionFailure : "", output, err));
+}
+
+// =============================================================================
+// -----------------------------------------------------------------------------
+void initCrashCatcher()
+{
+	struct sigaction sighandler;
+	sighandler.sa_handler = &handleCrash;
+	sighandler.sa_flags = 0;
+	sigemptyset (&sighandler.sa_mask);
+
+	for (int sig : g_signalsToCatch)
+		sigaction (sig, &sighandler, null);
+
+	log ("%1: crash catcher hooked to signals: %2\n", __func__, g_signalsToCatch);
+}
+#endif // #ifdef __unix__
+
+// =============================================================================
+// This function must be readily available in both Windows and Linux. We display
+// the bomb box straight in Windows while in Linux we let abort() trigger the
+// signal handler, which will cause the usual bomb box with GDB diagnostics.
+// Said prompt will embed the assertion failure information.
+// -----------------------------------------------------------------------------
+void assertionFailure (const char* file, int line, const char* funcname, const char* expr)
+{
+	QString errmsg = fmt (
+		"<p><b>File</b>: <tt>%1</tt><br />"
+		"<b>Line</b>: <tt>%2</tt><br />"
+		"<b>Function:</b> <tt>%3</tt></p>"
+		"<p>Assertion <b><tt>`%4'</tt></b> failed.</p>",
+		file, line, funcname, expr);
+
+	g_assertionFailure = errmsg;
+
+#ifndef __unix__
+	bombBox (errmsg);
+#endif
+
+	abort();
+}
\ No newline at end of file

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/CrashCatcher.h	Tue Jan 21 02:09:14 2014 +0200
@@ -0,0 +1,29 @@
+/*
+ *  LDForge: LDraw parts authoring CAD
+ *  Copyright (C) 2013, 2014 Santeri Piippo
+ *
+ *  This program is free software: you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation, either version 3 of the License, or
+ *  (at your option) any later version.
+ *
+ *  This program is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#ifndef LDFORGE_CRASHCATCHER_H
+#define LDFORGE_CRASHCATCHER_H
+
+#ifdef __unix__
+
+void initCrashCatcher();
+
+#else // ifdef __unix__
+#define initCrashCatcher()
+#endif // ifdef __unix__
+#endif // ifndef LDFORGE_CRASHCATCHER_H
\ No newline at end of file

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/Dialogs.cc	Tue Jan 21 02:09:14 2014 +0200
@@ -0,0 +1,379 @@
+/*
+ *  LDForge: LDraw parts authoring CAD
+ *  Copyright (C) 2013, 2014 Santeri Piippo
+ *
+ *  This program is free software: you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation, either version 3 of the License, or
+ *  (at your option) any later version.
+ *
+ *  This program is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include <QDialog>
+#include <QLineEdit>
+#include <QSpinBox>
+#include <QDialogButtonBox>
+#include <QFileDialog>
+#include <QLabel>
+#include <QPushButton>
+#include <QBoxLayout>
+#include <QGridLayout>
+#include <QProgressBar>
+#include <QCheckBox>
+#include <QDesktopServices>
+#include <QMessageBox>
+#include <QUrl>
+#include "Dialogs.h"
+#include "Widgets.h"
+#include "MainWindow.h"
+#include "GLRenderer.h"
+#include "Documentation.h"
+#include "Document.h"
+#include "Dialogs.h"
+#include "ui_overlay.h"
+#include "ui_ldrawpath.h"
+#include "ui_openprogress.h"
+#include "ui_extprogpath.h"
+#include "ui_about.h"
+#include "ui_bombbox.h"
+#include "moc_Dialogs.cpp"
+
+extern const char* g_extProgPathFilter;
+extern_cfg (String, io_ldpath);
+
+// =============================================================================
+// -----------------------------------------------------------------------------
+OverlayDialog::OverlayDialog (QWidget* parent, Qt::WindowFlags f) : QDialog (parent, f)
+{
+	ui = new Ui_OverlayUI;
+	ui->setupUi (this);
+
+	m_cameraArgs =
+	{
+		{ ui->top,    GL::ETopCamera },
+		{ ui->bottom, GL::EBottomCamera },
+		{ ui->front,  GL::EFrontCamera },
+		{ ui->back,   GL::EBackCamera },
+		{ ui->left,   GL::ELeftCamera },
+		{ ui->right,  GL::ERightCamera }
+	};
+
+	GL::EFixedCamera cam = g_win->R()->camera();
+
+	if (cam == GL::EFreeCamera)
+		cam = GL::ETopCamera;
+
+	connect (ui->width, SIGNAL (valueChanged (double)), this, SLOT (slot_dimensionsChanged()));
+	connect (ui->height, SIGNAL (valueChanged (double)), this, SLOT (slot_dimensionsChanged()));
+	connect (ui->buttonBox, SIGNAL (helpRequested()), this, SLOT (slot_help()));
+	connect (ui->fileSearchButton, SIGNAL (clicked (bool)), this, SLOT (slot_fpath()));
+
+	slot_dimensionsChanged();
+	fillDefaults (cam);
+}
+
+// =============================================================================
+// -----------------------------------------------------------------------------
+OverlayDialog::~OverlayDialog()
+{
+	delete ui;
+}
+
+// =============================================================================
+// -----------------------------------------------------------------------------
+void OverlayDialog::fillDefaults (int newcam)
+{
+	LDGLOverlay& info = g_win->R()->getOverlay (newcam);
+	radioDefault<int> (newcam, m_cameraArgs);
+
+	if (info.img != null)
+	{
+		ui->filename->setText (info.fname);
+		ui->originX->setValue (info.ox);
+		ui->originY->setValue (info.oy);
+		ui->width->setValue (info.lw);
+		ui->height->setValue (info.lh);
+	}
+	else
+	{
+		ui->filename->setText ("");
+		ui->originX->setValue (0);
+		ui->originY->setValue (0);
+		ui->width->setValue (0.0f);
+		ui->height->setValue (0.0f);
+	}
+}
+
+// =============================================================================
+// -----------------------------------------------------------------------------
+QString OverlayDialog::fpath() const
+{
+	return ui->filename->text();
+}
+
+int OverlayDialog::ofsx() const
+{
+	return ui->originX->value();
+}
+
+int OverlayDialog::ofsy() const
+{
+	return ui->originY->value();
+}
+
+double OverlayDialog::lwidth() const
+{
+	return ui->width->value();
+}
+
+double OverlayDialog::lheight() const
+{
+	return ui->height->value();
+}
+
+int OverlayDialog::camera() const
+{
+	return radioSwitch<int> (GL::ETopCamera, m_cameraArgs);
+}
+
+void OverlayDialog::slot_fpath()
+{
+	ui->filename->setText (QFileDialog::getOpenFileName (null, "Overlay image"));
+}
+
+void OverlayDialog::slot_help()
+{
+	showDocumentation (g_docs_overlays);
+}
+
+void OverlayDialog::slot_dimensionsChanged()
+{
+	bool enable = (ui->width->value() != 0) || (ui->height->value() != 0);
+	ui->buttonBox->button (QDialogButtonBox::Ok)->setEnabled (enable);
+}
+
+// =============================================================================
+// -----------------------------------------------------------------------------
+LDrawPathDialog::LDrawPathDialog (const bool validDefault, QWidget* parent, Qt::WindowFlags f) :
+	QDialog (parent, f),
+	m_validDefault (validDefault)
+{
+	ui = new Ui_LDPathUI;
+	ui->setupUi (this);
+	ui->status->setText ("---");
+
+	if (validDefault)
+		ui->heading->hide();
+	else
+	{
+		cancelButton()->setText ("Exit");
+		cancelButton()->setIcon (getIcon ("exit"));
+	}
+
+	okButton()->setEnabled (false);
+
+	connect (ui->path, SIGNAL (textEdited (QString)), this, SLOT (slot_tryConfigure()));
+	connect (ui->searchButton, SIGNAL (clicked()), this, SLOT (slot_findPath()));
+	connect (ui->buttonBox, SIGNAL (rejected()), this, validDefault ? SLOT (reject()) : SLOT (slot_exit()));
+	connect (ui->buttonBox, SIGNAL (accepted()), this, SLOT (slot_accept()));
+
+	setPath (io_ldpath);
+
+	if (validDefault)
+		slot_tryConfigure();
+}
+
+// =============================================================================
+// -----------------------------------------------------------------------------
+LDrawPathDialog::~LDrawPathDialog()
+{
+	delete ui;
+}
+
+QPushButton* LDrawPathDialog::okButton()
+{
+	return ui->buttonBox->button (QDialogButtonBox::Ok);
+}
+
+QPushButton* LDrawPathDialog::cancelButton()
+{
+	return ui->buttonBox->button (QDialogButtonBox::Cancel);
+}
+
+void LDrawPathDialog::setPath (QString path)
+{
+	ui->path->setText (path);
+}
+
+QString LDrawPathDialog::filename() const
+{
+	return ui->path->text();
+}
+
+// =============================================================================
+// -----------------------------------------------------------------------------
+void LDrawPathDialog::slot_findPath()
+{
+	QString newpath = QFileDialog::getExistingDirectory (this, "Find LDraw Path");
+
+	if (newpath.length() > 0 && newpath != filename())
+	{
+		setPath (newpath);
+		slot_tryConfigure();
+	}
+}
+
+// =============================================================================
+// -----------------------------------------------------------------------------
+void LDrawPathDialog::slot_exit()
+{
+	exit (0);
+}
+
+// =============================================================================
+// -----------------------------------------------------------------------------
+void LDrawPathDialog::slot_tryConfigure()
+{
+	if (LDPaths::tryConfigure (filename()) == false)
+	{
+		ui->status->setText (fmt ("<span style=\"color:#700; \">%1</span>", LDPaths::getError()));
+		okButton()->setEnabled (false);
+		return;
+	}
+
+	ui->status->setText ("<span style=\"color: #270; \">OK!</span>");
+	okButton()->setEnabled (true);
+}
+
+// =============================================================================
+// -----------------------------------------------------------------------------
+void LDrawPathDialog::slot_accept()
+{
+	Config::save();
+	accept();
+}
+
+// =============================================================================
+// -----------------------------------------------------------------------------
+OpenProgressDialog::OpenProgressDialog (QWidget* parent, Qt::WindowFlags f) : QDialog (parent, f)
+{
+	ui = new Ui_OpenProgressUI;
+	ui->setupUi (this);
+	ui->progressText->setText ("Parsing...");
+	setNumLines (0);
+	m_Progress = 0;
+}
+
+// =============================================================================
+// -----------------------------------------------------------------------------
+OpenProgressDialog::~OpenProgressDialog()
+{
+	delete ui;
+}
+
+// =============================================================================
+// -----------------------------------------------------------------------------
+void OpenProgressDialog::setNumLines (int const& a)
+{
+	m_NumLines = a;
+	ui->progressBar->setRange (0, getNumLines());
+	updateValues();
+}
+
+// =============================================================================
+// -----------------------------------------------------------------------------
+void OpenProgressDialog::updateValues()
+{
+	ui->progressText->setText (fmt ("Parsing... %1 / %2", getProgress(), getNumLines()));
+	ui->progressBar->setValue (getProgress());
+}
+
+// =============================================================================
+// -----------------------------------------------------------------------------
+void OpenProgressDialog::updateProgress (int progress)
+{
+	setProgress (progress);
+	updateValues();
+}
+
+// =============================================================================
+// -----------------------------------------------------------------------------
+ExtProgPathPrompt::ExtProgPathPrompt (QString progName, QWidget* parent, Qt::WindowFlags f) :
+	QDialog (parent, f),
+	ui (new Ui_ExtProgPath)
+{
+	ui->setupUi (this);
+	QString labelText = ui->m_label->text();
+	labelText.replace ("<PROGRAM>", progName);
+	ui->m_label->setText (labelText);
+	connect (ui->m_findPath, SIGNAL (clicked (bool)), this, SLOT (findPath()));
+}
+
+// =============================================================================
+// -----------------------------------------------------------------------------
+ExtProgPathPrompt::~ExtProgPathPrompt()
+{
+	delete ui;
+}
+
+// =============================================================================
+// -----------------------------------------------------------------------------
+void ExtProgPathPrompt::findPath()
+{
+	QString path = QFileDialog::getOpenFileName (null, "", "", g_extProgPathFilter);
+
+	if (!path.isEmpty())
+		ui->m_path->setText (path);
+}
+
+// =============================================================================
+// -----------------------------------------------------------------------------
+QString ExtProgPathPrompt::getPath() const
+{
+	return ui->m_path->text();
+}
+
+// =============================================================================
+// -----------------------------------------------------------------------------
+AboutDialog::AboutDialog (QWidget* parent, Qt::WindowFlags f) :
+	QDialog (parent, f)
+{
+	Ui::AboutUI ui;
+	ui.setupUi (this);
+	ui.versionInfo->setText (APPNAME " " + fullVersionString());
+
+	QPushButton* mailButton = new QPushButton;
+	mailButton->setText (tr ("Contact"));
+	mailButton->setIcon (getIcon ("mail"));
+	ui.buttonBox->addButton (static_cast<QAbstractButton*> (mailButton), QDialogButtonBox::HelpRole);
+	connect (ui.buttonBox, SIGNAL (helpRequested()), this, SLOT (slot_mail()));
+
+	setWindowTitle (fmt (tr ("About %1"), APPNAME));
+}
+
+// =============================================================================
+// -----------------------------------------------------------------------------
+void AboutDialog::slot_mail()
+{
+	QDesktopServices::openUrl (QUrl ("mailto:Santeri Piippo <arezey@gmail.com>?subject=LDForge"));
+}
+
+// =============================================================================
+// -----------------------------------------------------------------------------
+void bombBox (const QString& message)
+{
+	QDialog dlg (g_win);
+	Ui_BombBox ui;
+
+	ui.setupUi (&dlg);
+	ui.m_text->setText (message);
+	ui.buttonBox->button (QDialogButtonBox::Close)->setText (QObject::tr ("Damn it"));
+	dlg.exec();
+}

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/Dialogs.h	Tue Jan 21 02:09:14 2014 +0200
@@ -0,0 +1,145 @@
+/*
+ *  LDForge: LDraw parts authoring CAD
+ *  Copyright (C) 2013, 2014 Santeri Piippo
+ *
+ *  This program is free software: you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation, either version 3 of the License, or
+ *  (at your option) any later version.
+ *
+ *  This program is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#ifndef LDFORGE_DIALOGS_H
+#define LDFORGE_DIALOGS_H
+
+#include <QDialog>
+#include "Main.h"
+#include "Types.h"
+
+class Ui_ExtProgPath;
+class QRadioButton;
+class QCheckBox;
+class QProgressBar;
+class QGroupBox;
+class QDialogButtonBox;
+class QDoubleSpinBox;
+class QPushButton;
+class QLineEdit;
+class QSpinBox;
+class RadioGroup;
+class QLabel;
+class QAbstractButton;
+class Ui_OverlayUI;
+class Ui_LDPathUI;
+class Ui_OpenProgressUI;
+
+class OverlayDialog : public QDialog
+{
+	Q_OBJECT
+
+	public:
+		explicit OverlayDialog (QWidget* parent = null, Qt::WindowFlags f = 0);
+		virtual ~OverlayDialog();
+
+		QString         fpath() const;
+		int         ofsx() const;
+		int         ofsy() const;
+		double      lwidth() const;
+		double      lheight() const;
+		int         camera() const;
+
+	private:
+		Ui_OverlayUI* ui;
+		QList<pair<QRadioButton*, int>> m_cameraArgs;
+
+	private slots:
+		void slot_fpath();
+		void slot_help();
+		void slot_dimensionsChanged();
+		void fillDefaults (int newcam);
+};
+
+// =============================================================================
+class LDrawPathDialog : public QDialog
+{
+	Q_OBJECT
+
+	public:
+		explicit LDrawPathDialog (const bool validDefault, QWidget* parent = null, Qt::WindowFlags f = 0);
+		virtual ~LDrawPathDialog();
+		QString filename() const;
+		void setPath (QString path);
+
+	private:
+		Q_DISABLE_COPY (LDrawPathDialog)
+		const bool m_validDefault;
+		Ui_LDPathUI* ui;
+		QPushButton* okButton();
+		QPushButton* cancelButton();
+
+	private slots:
+		void slot_findPath();
+		void slot_tryConfigure();
+		void slot_exit();
+		void slot_accept();
+};
+
+// =============================================================================
+class OpenProgressDialog : public QDialog
+{
+	Q_OBJECT
+	PROPERTY (public,	int, Progress,	NUM_OPS,	STOCK_WRITE)
+	PROPERTY (public,	int, NumLines,	NUM_OPS,	CUSTOM_WRITE)
+
+	public:
+		explicit OpenProgressDialog (QWidget* parent = null, Qt::WindowFlags f = 0);
+		virtual ~OpenProgressDialog();
+
+	public slots:
+		void updateProgress (int progress);
+
+	private:
+		Ui_OpenProgressUI* ui;
+
+		void updateValues();
+};
+
+// =============================================================================
+class ExtProgPathPrompt : public QDialog
+{
+	Q_OBJECT
+
+	public:
+		explicit ExtProgPathPrompt (QString progName, QWidget* parent = 0, Qt::WindowFlags f = 0);
+		virtual ~ExtProgPathPrompt();
+		QString getPath() const;
+
+	public slots:
+		void findPath();
+
+	private:
+		Ui_ExtProgPath* ui;
+};
+
+// =============================================================================
+class AboutDialog : public QDialog
+{
+	Q_OBJECT
+
+	public:
+		AboutDialog (QWidget* parent = null, Qt::WindowFlags f = 0);
+
+	private slots:
+		void slot_mail();
+};
+
+void bombBox (const QString& message);
+
+#endif // LDFORGE_DIALOGS_H

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/Document.cc	Tue Jan 21 02:09:14 2014 +0200
@@ -0,0 +1,1435 @@
+/*
+ *  LDForge: LDraw parts authoring CAD
+ *  Copyright (C) 2013, 2014 Santeri Piippo
+ *
+ *  This program is free software: you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation, either version 3 of the License, or
+ *  (at your option) any later version.
+ *
+ *  This program is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include <QMessageBox>
+#include <QFileDialog>
+#include <QDir>
+#include <QApplication>
+#include "Main.h"
+#include "Configuration.h"
+#include "Document.h"
+#include "Misc.h"
+#include "MainWindow.h"
+#include "EditHistory.h"
+#include "Dialogs.h"
+#include "GLRenderer.h"
+#include "misc/InvokationDeferer.h"
+#include "moc_Document.cpp"
+
+cfg (String, io_ldpath, "");
+cfg (List, io_recentfiles, {});
+extern_cfg (String, net_downloadpath);
+extern_cfg (Bool, gl_logostuds);
+
+static bool g_loadingMainFile = false;
+static const int g_maxRecentFiles = 10;
+static bool g_aborted = false;
+static LDDocumentPointer g_logoedStud = null;
+static LDDocumentPointer g_logoedStud2 = null;
+
+LDDocument* LDDocument::m_curdoc = null;
+
+const QStringList g_specialSubdirectories ({ "s", "48", "8" });
+
+// =============================================================================
+// -----------------------------------------------------------------------------
+namespace LDPaths
+{
+	static QString pathError;
+
+	struct
+	{
+		QString LDConfigPath;
+		QString partsPath, primsPath;
+	} pathInfo;
+
+	void initPaths()
+	{
+		if (!tryConfigure (io_ldpath))
+		{
+			LDrawPathDialog dlg (false);
+
+			if (!dlg.exec())
+				exit (0);
+
+			io_ldpath = dlg.filename();
+		}
+	}
+
+	bool tryConfigure (QString path)
+	{
+		QDir dir;
+
+		if (!dir.cd (path))
+		{
+			pathError = "Directory does not exist.";
+			return false;
+		}
+
+		QStringList mustHave = { "LDConfig.ldr", "parts", "p" };
+		QStringList contents = dir.entryList (mustHave);
+
+		if (contents.size() != mustHave.size())
+		{
+			pathError = "Not an LDraw directory! Must<br />have LDConfig.ldr, parts/ and p/.";
+			return false;
+		}
+
+		pathInfo.partsPath = fmt ("%1" DIRSLASH "parts", path);
+		pathInfo.LDConfigPath = fmt ("%1" DIRSLASH "LDConfig.ldr", path);
+		pathInfo.primsPath = fmt ("%1" DIRSLASH "p", path);
+
+		return true;
+	}
+
+	// Accessors
+	QString getError()
+	{
+		return pathError;
+	}
+
+	QString ldconfig()
+	{
+		return pathInfo.LDConfigPath;
+	}
+
+	QString prims()
+	{
+		return pathInfo.primsPath;
+	}
+
+	QString parts()
+	{
+		return pathInfo.partsPath;
+	}
+}
+
+// =============================================================================
+// -----------------------------------------------------------------------------
+LDDocument::LDDocument() :
+	m_gldata (new LDGLData)
+{
+	setImplicit (true);
+	setSavePosition (-1);
+	setListItem (null);
+	setHistory (new History);
+	m_History->setDocument (this);
+}
+
+// =============================================================================
+// -----------------------------------------------------------------------------
+LDDocument::~LDDocument()
+{
+	// Remove this file from the list of files. This MUST be done FIRST, otherwise
+	// a ton of other functions will think this file is still valid when it is not!
+	g_loadedFiles.removeOne (this);
+
+	m_History->setIgnoring (true);
+
+	// Clear everything from the model
+	for (LDObject* obj : getObjects())
+		obj->deleteSelf();
+
+	// Clear the cache as well
+	for (LDObject* obj : getCache())
+		obj->deleteSelf();
+
+	delete m_History;
+	delete m_gldata;
+
+	// If we just closed the current file, we need to set the current
+	// file as something else.
+	if (this == getCurrentDocument())
+	{
+		bool found = false;
+
+		// Try find an explicitly loaded file - if we can't find one,
+		// we need to create a new file to switch to.
+		for (LDDocument* file : g_loadedFiles)
+		{
+			if (!file->isImplicit())
+			{
+				LDDocument::setCurrent (file);
+				found = true;
+				break;
+			}
+		}
+
+		if (!found)
+			newFile();
+	}
+
+	if (this == g_logoedStud)
+		g_logoedStud = null;
+	elif (this == g_logoedStud2)
+		g_logoedStud2 = null;
+
+	g_win->updateDocumentList();
+	log ("Closed %1", getName());
+}
+
+// =============================================================================
+// -----------------------------------------------------------------------------
+LDDocument* findDocument (QString name)
+{
+	for (LDDocument * file : g_loadedFiles)
+		if (!file->getName().isEmpty() && file->getName() == name)
+			return file;
+
+	return null;
+}
+
+// =============================================================================
+// -----------------------------------------------------------------------------
+QString dirname (QString path)
+{
+	long lastpos = path.lastIndexOf (DIRSLASH);
+
+	if (lastpos > 0)
+		return path.left (lastpos);
+
+#ifndef _WIN32
+	if (path[0] == DIRSLASH_CHAR)
+		return DIRSLASH;
+#endif // _WIN32
+
+	return "";
+}
+
+// =============================================================================
+// -----------------------------------------------------------------------------
+QString basename (QString path)
+{
+	long lastpos = path.lastIndexOf (DIRSLASH);
+
+	if (lastpos != -1)
+		return path.mid (lastpos + 1);
+
+	return path;
+}
+
+// =============================================================================
+// -----------------------------------------------------------------------------
+static QString findLDrawFilePath (QString relpath, bool subdirs)
+{
+	QString fullPath;
+
+	// LDraw models use Windows-style path separators. If we're not on Windows,
+	// replace the path separator now before opening any files. Qt expects
+	// forward-slashes as directory separators.
+#ifndef WIN32
+	relpath.replace ("\\", "/");
+#endif // WIN32
+
+	// Try find it relative to other currently open documents. We want a file
+	// in the immediate vicinity of a current model to override stock LDraw stuff.
+	QString reltop = basename (dirname (relpath));
+
+	for (LDDocument* doc : g_loadedFiles)
+	{
+		if (doc->getFullPath().isEmpty())
+			continue;
+
+		QString partpath = fmt ("%1/%2", dirname (doc->getFullPath()), relpath);
+		QFile f (partpath);
+
+		if (f.exists())
+		{
+			// ensure we don't mix subfiles and 48-primitives with non-subfiles and non-48
+			QString proptop = basename (dirname (partpath));
+
+			bool bogus = false;
+
+			for (QString s : g_specialSubdirectories)
+			{
+				if ((proptop == s && reltop != s) || (reltop == s && proptop != s))
+				{
+					bogus = true;
+					break;
+				}
+			}
+
+			if (!bogus)
+				return partpath;
+		}
+	}
+
+	if (QFile::exists (relpath))
+		return relpath;
+
+	// Try with just the LDraw path first
+	fullPath = fmt ("%1" DIRSLASH "%2", io_ldpath, relpath);
+
+	if (QFile::exists (fullPath))
+		return fullPath;
+
+	if (subdirs)
+	{
+		// Look in sub-directories: parts and p. Also look in net_downloadpath, since that's
+		// where we download parts from the PT to.
+		for (const QString& topdir : initlist<QString> ({ io_ldpath, net_downloadpath }))
+		{
+			for (const QString& subdir : initlist<QString> ({ "parts", "p" }))
+			{
+				fullPath = fmt ("%1" DIRSLASH "%2" DIRSLASH "%3", topdir, subdir, relpath);
+
+				if (QFile::exists (fullPath))
+					return fullPath;
+			}
+		}
+	}
+
+	// Did not find the file.
+	return "";
+}
+
+QFile* openLDrawFile (QString relpath, bool subdirs, QString* pathpointer)
+{
+	log ("Opening %1...\n", relpath);
+	QString path = findLDrawFilePath (relpath, subdirs);
+
+	if (pathpointer != null)
+		*pathpointer = path;
+
+	if (path.isEmpty())
+		return null;
+
+	QFile* fp = new QFile (path);
+
+	if (fp->open (QIODevice::ReadOnly))
+		return fp;
+
+	fp->deleteLater();
+	return null;
+}
+
+// =============================================================================
+// -----------------------------------------------------------------------------
+void LDFileLoader::start()
+{
+	setDone (false);
+	setProgress (0);
+	setAborted (false);
+
+	if (isOnForeground())
+	{
+		g_aborted = false;
+
+		// Show a progress dialog if we're loading the main Document.here so we can
+		// show progress updates and keep the WM posted that we're still here.
+		// Of course we cannot exec() the dialog because then the dialog would
+		// block.
+		dlg = new OpenProgressDialog (g_win);
+		dlg->setNumLines (getLines().size());
+		dlg->setModal (true);
+		dlg->show();
+
+		// Connect the loader in so we can show updates
+		connect (this, SIGNAL (workDone()), dlg, SLOT (accept()));
+		connect (dlg, SIGNAL (rejected()), this, SLOT (abort()));
+	}
+	else
+		dlg = null;
+
+	// Begin working
+	work (0);
+}
+
+// =============================================================================
+// -----------------------------------------------------------------------------
+void LDFileLoader::work (int i)
+{
+	// User wishes to abort, so stop here now.
+	if (isAborted())
+	{
+		for (LDObject* obj : m_Objects)
+			obj->deleteSelf();
+
+		m_Objects.clear();
+		setDone (true);
+		return;
+	}
+
+	// Parse up to 300 lines per iteration
+	int max = i + 300;
+
+	for (; i < max && i < (int) getLines().size(); ++i)
+	{
+		QString line = getLines()[i];
+
+		// Trim the trailing newline
+		QChar c;
+
+		while (line.endsWith ("\n") || line.endsWith ("\r"))
+			line.chop (1);
+
+		LDObject* obj = parseLine (line);
+
+		// Check for parse errors and warn about tthem
+		if (obj->getType() == LDObject::EError)
+		{
+			log ("Couldn't parse line #%1: %2", getProgress() + 1, static_cast<LDError*> (obj)->reason);
+
+			if (getWarnings() != null)
+				(*getWarnings())++;
+		}
+
+		m_Objects << obj;
+		setProgress (i);
+
+		// If we have a dialog pointer, update the progress now
+		if (isOnForeground())
+			dlg->updateProgress (i);
+	}
+
+	// If we're done now, tell the environment we're done and stop.
+	if (i >= ((int) getLines().size()) - 1)
+	{
+		emit workDone();
+		setDone (true);
+		return;
+	}
+
+	// Otherwise, continue, by recursing back.
+	if (!isDone())
+	{
+		// If we have a dialog to show progress output to, we cannot just call
+		// work() again immediately as the dialog needs some processor cycles as
+		// well. Thus, take a detour through the event loop by using the
+		// meta-object system.
+		//
+		// This terminates the loop here and control goes back to the function
+		// which called the file loader. It will keep processing the event loop
+		// until we're ready (see loadFileContents), thus the event loop will
+		// eventually catch the invokation we throw here and send us back. Though
+		// it's not technically recursion anymore, more like a for loop. :P
+		if (isOnForeground())
+			QMetaObject::invokeMethod (this, "work", Qt::QueuedConnection, Q_ARG (int, i));
+		else
+			work (i);
+	}
+}
+
+// =============================================================================
+// -----------------------------------------------------------------------------
+void LDFileLoader::abort()
+{
+	setAborted (true);
+
+	if (isOnForeground())
+		g_aborted = true;
+}
+
+// =============================================================================
+// -----------------------------------------------------------------------------
+LDObjectList loadFileContents (QFile* fp, int* numWarnings, bool* ok)
+{
+	QStringList lines;
+	LDObjectList objs;
+
+	if (numWarnings)
+		*numWarnings = 0;
+
+	// Read in the lines
+	while (fp->atEnd() == false)
+		lines << QString::fromUtf8 (fp->readLine());
+
+	LDFileLoader* loader = new LDFileLoader;
+	loader->setWarnings (numWarnings);
+	loader->setLines (lines);
+	loader->setOnForeground (g_loadingMainFile);
+	loader->start();
+
+	// After start() returns, if the loader isn't done yet, it's delaying
+	// its next iteration through the event loop. We need to catch this here
+	// by telling the event loop to tick, which will tick the file loader again.
+	// We keep doing this until the file loader is ready.
+	while (loader->isDone() == false)
+		qApp->processEvents();
+
+	// If we wanted the success value, supply that now
+	if (ok)
+		*ok = !loader->isAborted();
+
+	objs = loader->getObjects();
+	return objs;
+}
+
+// =============================================================================
+// -----------------------------------------------------------------------------
+LDDocument* openDocument (QString path, bool search)
+{
+	// Convert the file name to lowercase since some parts contain uppercase
+	// file names. I'll assume here that the library will always use lowercase
+	// file names for the actual parts..
+	QFile* fp;
+	QString fullpath;
+
+	if (search)
+		fp = openLDrawFile (path.toLower(), true, &fullpath);
+	else
+	{
+		fp = new QFile (path);
+		fullpath = path;
+
+		if (!fp->open (QIODevice::ReadOnly))
+		{
+			delete fp;
+			return null;
+		}
+	}
+
+	if (!fp)
+		return null;
+
+	LDDocument* load = new LDDocument;
+	load->setFullPath (fullpath);
+	load->setName (LDDocument::shortenName (load->getFullPath()));
+	dlog ("name: %1 (%2)", load->getName(), load->getFullPath());
+	g_loadedFiles << load;
+
+	// Don't take the file loading as actual edits to the file
+	load->getHistory()->setIgnoring (true);
+
+	int numWarnings;
+	bool ok;
+	LDObjectList objs = loadFileContents (fp, &numWarnings, &ok);
+	fp->close();
+	fp->deleteLater();
+
+	if (!ok)
+	{
+		g_loadedFiles.removeOne (load);
+		delete load;
+		return null;
+	}
+
+	load->addObjects (objs);
+
+	if (g_loadingMainFile)
+	{
+		LDDocument::setCurrent (load);
+		g_win->R()->setFile (load);
+		log (QObject::tr ("File %1 parsed successfully (%2 errors)."), path, numWarnings);
+	}
+
+	load->getHistory()->setIgnoring (false);
+	return load;
+}
+
+// =============================================================================
+// -----------------------------------------------------------------------------
+bool LDDocument::isSafeToClose()
+{
+	typedef QMessageBox msgbox;
+	setlocale (LC_ALL, "C");
+
+	// If we have unsaved changes, warn and give the option of saving.
+	if (hasUnsavedChanges())
+	{
+		QString message = fmt (tr ("There are unsaved changes to %1. Should it be saved?"),
+			(getName().length() > 0) ? getName() : tr ("<anonymous>"));
+
+		int button = msgbox::question (g_win, tr ("Unsaved Changes"), message,
+			(msgbox::Yes | msgbox::No | msgbox::Cancel), msgbox::Cancel);
+
+		switch (button)
+		{
+			case msgbox::Yes:
+			{
+				// If we don't have a file path yet, we have to ask the user for one.
+				if (getName().length() == 0)
+				{
+					QString newpath = QFileDialog::getSaveFileName (g_win, tr ("Save As"),
+						getCurrentDocument()->getName(), tr ("LDraw files (*.dat *.ldr)"));
+
+					if (newpath.length() == 0)
+						return false;
+
+					setName (newpath);
+				}
+
+				if (!save())
+				{
+					message = fmt (tr ("Failed to save %1 (%2)\nDo you still want to close?"),
+						getName(), strerror (errno));
+
+					if (msgbox::critical (g_win, tr ("Save Failure"), message,
+						(msgbox::Yes | msgbox::No), msgbox::No) == msgbox::No)
+					{
+						return false;
+					}
+				}
+			} break;
+
+			case msgbox::Cancel:
+				return false;
+
+			default:
+				break;
+		}
+	}
+
+	return true;
+}
+
+// =============================================================================
+// -----------------------------------------------------------------------------
+void closeAll()
+{
+	// Remove all loaded files and the objects they contain
+	QList<LDDocument*> files = g_loadedFiles;
+
+	for (LDDocument* file : files)
+		delete file;
+}
+
+// =============================================================================
+// -----------------------------------------------------------------------------
+void newFile()
+{
+	// Create a new anonymous file and set it to our current
+	LDDocument* f = new LDDocument;
+	f->setName ("");
+	f->setImplicit (false);
+	g_loadedFiles << f;
+	LDDocument::setCurrent (f);
+	LDDocument::closeInitialFile();
+	g_win->R()->setFile (f);
+	g_win->doFullRefresh();
+	g_win->updateTitle();
+	g_win->updateActions();
+}
+
+// =============================================================================
+// -----------------------------------------------------------------------------
+void addRecentFile (QString path)
+{
+	auto& rfiles = io_recentfiles;
+	int idx = rfiles.indexOf (path);
+
+	// If this file already is in the list, pop it out.
+	if (idx != -1)
+	{
+		if (rfiles.size() == 1)
+			return; // only recent file - abort and do nothing
+
+		// Pop it out.
+		rfiles.removeAt (idx);
+	}
+
+	// If there's too many recent files, drop one out.
+	while (rfiles.size() > (g_maxRecentFiles - 1))
+		rfiles.removeAt (0);
+
+	// Add the file
+	rfiles << path;
+
+	Config::save();
+	g_win->updateRecentFilesMenu();
+}
+
+// =============================================================================
+// Open an LDraw file and set it as the main model
+// -----------------------------------------------------------------------------
+void openMainFile (QString path)
+{
+	g_loadingMainFile = true;
+
+	// If there's already a file with the same name, this file must replace it.
+	LDDocument* documentToReplace = null;
+	QString shortName = LDDocument::shortenName (path);
+
+	for (LDDocument* doc : g_loadedFiles)
+	{
+		if (doc->getName() == shortName)
+		{
+			documentToReplace = doc;
+			break;
+		}
+	}
+
+	// We cannot open this file if the document this would replace is not
+	// safe to close.
+	if (documentToReplace != null && documentToReplace->isSafeToClose() == false)
+	{
+		g_loadingMainFile = false;
+		return;
+	}
+
+	LDDocument* file = openDocument (path, false);
+
+	if (!file)
+	{
+		// Loading failed, thus drop down to a new file since we
+		// closed everything prior.
+		newFile();
+
+		if (!g_aborted)
+		{
+			// Tell the user loading failed.
+			setlocale (LC_ALL, "C");
+			critical (fmt (QObject::tr ("Failed to open %1: %2"), path, strerror (errno)));
+		}
+
+		g_loadingMainFile = false;
+		return;
+	}
+
+	file->setImplicit (false);
+
+	// Replace references to the old file with the new file.
+	if (documentToReplace != null)
+	{
+		for (LDDocumentPointer* ptr : documentToReplace->getReferences())
+		{	dlog ("ptr: %1 (%2)\n",
+				ptr, ptr->getPointer() ? ptr->getPointer()->getName() : "<null>");
+
+			ptr->operator= (file);
+		}
+
+		assert (documentToReplace->countReferences() == 0);
+		delete documentToReplace;
+	}
+
+	// If we have an anonymous, unchanged file open as the only open file
+	// (aside of the one we just opened), close it now.
+	LDDocument::closeInitialFile();
+
+	// Rebuild the object tree view now.
+	LDDocument::setCurrent (file);
+	g_win->doFullRefresh();
+
+	// Add it to the recent files list.
+	addRecentFile (path);
+	g_loadingMainFile = false;
+}
+
+// =============================================================================
+// -----------------------------------------------------------------------------
+bool LDDocument::save (QString savepath)
+{
+	if (!savepath.length())
+		savepath = getFullPath();
+
+	QFile f (savepath);
+
+	if (!f.open (QIODevice::WriteOnly))
+		return false;
+
+	// If the second object in the list holds the file name, update that now.
+	// Only do this if the file is explicitly open.
+	LDObject* nameObject = getObject (1);
+
+	if (!isImplicit() && nameObject != null && nameObject->getType() == LDObject::EComment)
+	{
+		LDComment* nameComment = static_cast<LDComment*> (nameObject);
+
+		if (nameComment->text.left (6) == "Name: ")
+		{
+			QString newname = shortenName (savepath);
+			nameComment->text = fmt ("Name: %1", newname);
+			g_win->buildObjList();
+		}
+	}
+
+	// File is open, now save the model to it. Note that LDraw requires files to
+	// have DOS line endings, so we terminate the lines with \r\n.
+	for (LDObject* obj : getObjects())
+		f.write ((obj->raw() + "\r\n").toUtf8());
+
+	// File is saved, now clean up.
+	f.close();
+
+	// We have successfully saved, update the save position now.
+	setSavePosition (getHistory()->getPosition());
+	setFullPath (savepath);
+	setName (shortenName (savepath));
+
+	g_win->updateDocumentListItem (this);
+	g_win->updateTitle();
+	return true;
+}
+
+// =============================================================================
+// -----------------------------------------------------------------------------
+class LDParseError : public std::exception
+{
+	PROPERTY (private, QString,	Error,	STR_OPS, STOCK_WRITE)
+	PROPERTY (private, QString,	Line,		STR_OPS,	STOCK_WRITE)
+
+	public:
+		LDParseError (QString line, QString a) : m_Error (a), m_Line (line) {}
+
+		const char* what() const throw()
+		{
+			return getError().toLocal8Bit().constData();
+		}
+};
+
+// =============================================================================
+// -----------------------------------------------------------------------------
+void checkTokenCount (QString line, const QStringList& tokens, int num)
+{
+	if (tokens.size() != num)
+		throw LDParseError (line, fmt ("Bad amount of tokens, expected %1, got %2", num, tokens.size()));
+}
+
+// =============================================================================
+// -----------------------------------------------------------------------------
+void checkTokenNumbers (QString line, const QStringList& tokens, int min, int max)
+{
+	bool ok;
+
+	// Check scientific notation, e.g. 7.99361e-15
+	QRegExp scient ("\\-?[0-9]+\\.[0-9]+e\\-[0-9]+");
+
+	for (int i = min; i <= max; ++i)
+	{
+		tokens[i].toDouble (&ok);
+
+		if (!ok && !scient.exactMatch (tokens[i]))
+			throw LDParseError (line, fmt ("Token #%1 was `%2`, expected a number (matched length: %3)", (i + 1), tokens[i], scient.matchedLength()));
+	}
+}
+
+// =============================================================================
+// -----------------------------------------------------------------------------
+static Vertex parseVertex (QStringList& s, const int n)
+{
+	Vertex v;
+
+	for_axes (ax)
+		v[ax] = s[n + ax].toDouble();
+
+	return v;
+}
+
+// =============================================================================
+// This is the LDraw code parser function. It takes in a string containing LDraw
+// code and returns the object parsed from it. parseLine never returns null,
+// the object will be LDError if it could not be parsed properly.
+// -----------------------------------------------------------------------------
+LDObject* parseLine (QString line)
+{
+	try
+	{
+		QStringList tokens = line.split (" ", QString::SkipEmptyParts);
+
+		if (tokens.size() <= 0)
+		{
+			// Line was empty, or only consisted of whitespace
+			return new LDEmpty;
+		}
+
+		if (tokens[0].length() != 1 || tokens[0][0].isDigit() == false)
+			throw LDParseError (line, "Illogical line code");
+
+		int num = tokens[0][0].digitValue();
+
+		switch (num)
+		{
+			case 0:
+			{
+				// Comment
+				QString comm = line.mid (line.indexOf ("0") + 1).simplified();
+
+				// Handle BFC statements
+				if (tokens.size() > 2 && tokens[1] == "BFC")
+				{
+					for (int i = 0; i < LDBFC::NumStatements; ++i)
+						if (comm == fmt ("BFC %1", LDBFC::statements [i]))
+							return new LDBFC ( (LDBFC::Type) i);
+
+					// MLCAD is notorious for stuffing these statements in parts it
+					// creates. The above block only handles valid statements, so we
+					// need to handle MLCAD-style invertnext, clip and noclip separately.
+					struct
+					{
+						QString			a;
+						LDBFC::Type	b;
+					} BFCData[] =
+					{
+						{ "INVERTNEXT", LDBFC::InvertNext },
+						{ "NOCLIP", LDBFC::NoClip },
+						{ "CLIP", LDBFC::Clip }
+					};
+
+					for (const auto& i : BFCData)
+						if (comm == "BFC CERTIFY " + i.a)
+							return new LDBFC (i.b);
+				}
+
+				if (tokens.size() > 2 && tokens[1] == "!LDFORGE")
+				{
+					// Handle LDForge-specific types, they're embedded into comments too
+					if (tokens[2] == "VERTEX")
+					{
+						// Vertex (0 !LDFORGE VERTEX)
+						checkTokenCount (line, tokens, 7);
+						checkTokenNumbers (line, tokens, 3, 6);
+
+						LDVertex* obj = new LDVertex;
+						obj->setColor (tokens[3].toLong());
+
+						for_axes (ax)
+							obj->pos[ax] = tokens[4 + ax].toDouble(); // 4 - 6
+
+						return obj;
+					} elif (tokens[2] == "OVERLAY")
+					{
+						checkTokenCount (line, tokens, 9);;
+						checkTokenNumbers (line, tokens, 5, 8);
+
+						LDOverlay* obj = new LDOverlay;
+						obj->setFileName (tokens[3]);
+						obj->setCamera (tokens[4].toLong());
+						obj->setX (tokens[5].toLong());
+						obj->setY (tokens[6].toLong());
+						obj->setWidth (tokens[7].toLong());
+						obj->setHeight (tokens[8].toLong());
+						return obj;
+					}
+				}
+
+				// Just a regular comment:
+				LDComment* obj = new LDComment;
+				obj->text = comm;
+				return obj;
+			}
+
+			case 1:
+			{
+				// Subfile
+				checkTokenCount (line, tokens, 15);
+				checkTokenNumbers (line, tokens, 1, 13);
+
+				// Try open the file. Disable g_loadingMainFile temporarily since we're
+				// not loading the main file now, but the subfile in question.
+				bool tmp = g_loadingMainFile;
+				g_loadingMainFile = false;
+				LDDocument* load = getDocument (tokens[14]);
+				g_loadingMainFile = tmp;
+
+				// If we cannot open the file, mark it an error. Note we cannot use LDParseError
+				// here because the error object needs the document reference.
+				if (!load)
+				{
+					LDError* obj = new LDError (line, fmt ("Could not open %1", tokens[14]));
+					obj->setFileReferenced (tokens[14]);
+					return obj;
+				}
+
+				LDSubfile* obj = new LDSubfile;
+				obj->setColor (tokens[1].toLong());
+				obj->setPosition (parseVertex (tokens, 2));  // 2 - 4
+
+				Matrix transform;
+
+				for (int i = 0; i < 9; ++i)
+					transform[i] = tokens[i + 5].toDouble(); // 5 - 13
+
+				obj->setTransform (transform);
+				obj->setFileInfo (load);
+				return obj;
+			}
+
+			case 2:
+			{
+				checkTokenCount (line, tokens, 8);
+				checkTokenNumbers (line, tokens, 1, 7);
+
+				// Line
+				LDLine* obj = new LDLine;
+				obj->setColor (tokens[1].toLong());
+
+				for (int i = 0; i < 2; ++i)
+					obj->setVertex (i, parseVertex (tokens, 2 + (i * 3)));   // 2 - 7
+
+				return obj;
+			}
+
+			case 3:
+			{
+				checkTokenCount (line, tokens, 11);
+				checkTokenNumbers (line, tokens, 1, 10);
+
+				// Triangle
+				LDTriangle* obj = new LDTriangle;
+				obj->setColor (tokens[1].toLong());
+
+				for (int i = 0; i < 3; ++i)
+					obj->setVertex (i, parseVertex (tokens, 2 + (i * 3)));   // 2 - 10
+
+				return obj;
+			}
+
+			case 4:
+			case 5:
+			{
+				checkTokenCount (line, tokens, 14);
+				checkTokenNumbers (line, tokens, 1, 13);
+
+				// Quadrilateral / Conditional line
+				LDObject* obj;
+
+				if (num == 4)
+					obj = new LDQuad;
+				else
+					obj = new LDCondLine;
+
+				obj->setColor (tokens[1].toLong());
+
+				for (int i = 0; i < 4; ++i)
+					obj->setVertex (i, parseVertex (tokens, 2 + (i * 3)));   // 2 - 13
+
+				return obj;
+			}
+
+			default: // Strange line we couldn't parse
+				throw LDError (line, "Unknown line code number");
+		}
+	}
+	catch (LDParseError& e)
+	{
+		return new LDError (e.getLine(), e.getError());
+	}
+}
+
+// =============================================================================
+// -----------------------------------------------------------------------------
+LDDocument* getDocument (QString filename)
+{
+	// Try find the file in the list of loaded files
+	LDDocument* doc = findDocument (filename);
+
+	// If it's not loaded, try open it
+	if (!doc)
+		doc = openDocument (filename, true);
+
+	return doc;
+}
+
+// =============================================================================
+// -----------------------------------------------------------------------------
+void reloadAllSubfiles()
+{
+	if (!getCurrentDocument())
+		return;
+
+	g_loadedFiles.clear();
+	g_loadedFiles << getCurrentDocument();
+
+	// Go through all objects in the current file and reload the subfiles
+	for (LDObject* obj : getCurrentDocument()->getObjects())
+	{
+		if (obj->getType() == LDObject::ESubfile)
+		{
+			LDSubfile* ref = static_cast<LDSubfile*> (obj);
+			LDDocument* fileInfo = getDocument (ref->getFileInfo()->getName());
+
+			if (fileInfo)
+				ref->setFileInfo (fileInfo);
+			else
+				ref->replace (new LDError (ref->raw(), fmt ("Could not open %1", ref->getFileInfo()->getName())));
+		}
+
+		// Reparse gibberish files. It could be that they are invalid because
+		// of loading errors. Circumstances may be different now.
+		if (obj->getType() == LDObject::EError)
+			obj->replace (parseLine (static_cast<LDError*> (obj)->contents));
+	}
+}
+
+// =============================================================================
+// -----------------------------------------------------------------------------
+int LDDocument::addObject (LDObject* obj)
+{
+	getHistory()->add (new AddHistory (getObjects().size(), obj));
+	m_Objects << obj;
+
+	if (obj->getType() == LDObject::EVertex)
+		m_Vertices << obj;
+
+#ifdef DEBUG
+	if (!isImplicit())
+		dlog ("Added object #%1 (%2)\n", obj->getID(), obj->getTypeName());
+#endif
+
+	obj->setFile (this);
+	return getObjectCount() - 1;
+}
+
+// =============================================================================
+// -----------------------------------------------------------------------------
+void LDDocument::addObjects (const LDObjectList objs)
+{
+	for (LDObject* obj : objs)
+		if (obj)
+			addObject (obj);
+}
+
+// =============================================================================
+// -----------------------------------------------------------------------------
+void LDDocument::insertObj (int pos, LDObject* obj)
+{
+	getHistory()->add (new AddHistory (pos, obj));
+	m_Objects.insert (pos, obj);
+	obj->setFile (this);
+
+#ifdef DEBUG
+	if (!isImplicit())
+		dlog ("Inserted object #%1 (%2) at %3\n", obj->getID(), obj->getTypeName(), pos);
+#endif
+}
+
+// =============================================================================
+// -----------------------------------------------------------------------------
+void LDDocument::forgetObject (LDObject* obj)
+{
+	int idx = obj->getIndex();
+	obj->unselect();
+	assert (m_Objects[idx] == obj);
+
+	if (!getHistory()->isIgnoring())
+		getHistory()->add (new DelHistory (idx, obj));
+
+	m_Objects.removeAt (idx);
+	obj->setFile (null);
+}
+
+// =============================================================================
+// -----------------------------------------------------------------------------
+bool safeToCloseAll()
+{
+	for (LDDocument* f : g_loadedFiles)
+		if (!f->isSafeToClose())
+			return false;
+
+	return true;
+}
+
+// =============================================================================
+// -----------------------------------------------------------------------------
+void LDDocument::setObject (int idx, LDObject* obj)
+{
+	assert (idx >= 0 && idx < m_Objects.size());
+
+	// Mark this change to history
+	if (!m_History->isIgnoring())
+	{
+		QString oldcode = getObject (idx)->raw();
+		QString newcode = obj->raw();
+		*m_History << new EditHistory (idx, oldcode, newcode);
+	}
+
+	m_Objects[idx]->unselect();
+	m_Objects[idx]->setFile (null);
+	obj->setFile (this);
+	m_Objects[idx] = obj;
+}
+
+// =============================================================================
+// Close all implicit files with no references
+// -----------------------------------------------------------------------------
+void LDDocument::closeUnused()
+{
+	for (LDDocument* file : g_loadedFiles)
+		if (file->isImplicit() && file->countReferences() == 0)
+			delete file;
+}
+
+// =============================================================================
+// -----------------------------------------------------------------------------
+LDObject* LDDocument::getObject (int pos) const
+{
+	if (m_Objects.size() <= pos)
+		return null;
+
+	return m_Objects[pos];
+}
+
+// =============================================================================
+// -----------------------------------------------------------------------------
+int LDDocument::getObjectCount() const
+{
+	return getObjects().size();
+}
+
+// =============================================================================
+// -----------------------------------------------------------------------------
+bool LDDocument::hasUnsavedChanges() const
+{
+	return !isImplicit() && getHistory()->getPosition() != getSavePosition();
+}
+
+// =============================================================================
+// -----------------------------------------------------------------------------
+QString LDDocument::getDisplayName()
+{
+	if (!getName().isEmpty())
+		return getName();
+
+	if (!getDefaultName().isEmpty())
+		return "[" + getDefaultName() + "]";
+
+	return tr ("<anonymous>");
+}
+
+// =============================================================================
+// -----------------------------------------------------------------------------
+LDObjectList LDDocument::inlineContents (LDSubfile::InlineFlags flags)
+{
+	// Possibly substitute with logoed studs:
+	// stud.dat -> stud-logo.dat
+	// stud2.dat -> stud-logo2.dat
+	if (gl_logostuds && (flags & LDSubfile::RendererInline))
+	{
+		// Ensure logoed studs are loaded first
+		loadLogoedStuds();
+
+		if (getName() == "stud.dat" && g_logoedStud)
+			return g_logoedStud->inlineContents (flags);
+		elif (getName() == "stud2.dat" && g_logoedStud2)
+			return g_logoedStud2->inlineContents (flags);
+	}
+
+	LDObjectList objs, objcache;
+
+	bool deep = flags & LDSubfile::DeepInline,
+		 doCache = flags & LDSubfile::CacheInline;
+
+	if (m_needsCache)
+	{
+		clearCache();
+		doCache = true;
+	}
+
+	// If we have this cached, just create a copy of that
+	if (deep && getCache().isEmpty() == false)
+	{
+		for (LDObject* obj : getCache())
+			objs << obj->createCopy();
+	}
+	else
+	{
+		if (!deep)
+			doCache = false;
+
+		for (LDObject* obj : getObjects())
+		{
+			// Skip those without scemantic meaning
+			if (!obj->isScemantic())
+				continue;
+
+			// Got another sub-file reference, inline it if we're deep-inlining. If not,
+			// just add it into the objects normally. Also, we only cache immediate
+			// subfiles and this is not one. Yay, recursion!
+			if (deep && obj->getType() == LDObject::ESubfile)
+			{
+				LDSubfile* ref = static_cast<LDSubfile*> (obj);
+
+				// We only want to cache immediate subfiles, so shed the caching
+				// flag when recursing deeper in hierarchy.
+				LDObjectList otherobjs = ref->inlineContents (flags & ~ (LDSubfile::CacheInline));
+
+				for (LDObject* otherobj : otherobjs)
+				{
+					// Cache this object, if desired
+					if (doCache)
+						objcache << otherobj->createCopy();
+
+					objs << otherobj;
+				}
+			}
+			else
+			{
+				if (doCache)
+					objcache << obj->createCopy();
+
+				objs << obj->createCopy();
+			}
+		}
+
+		if (doCache)
+			setCache (objcache);
+	}
+
+	return objs;
+}
+
+// =============================================================================
+// -----------------------------------------------------------------------------
+LDDocument* LDDocument::current()
+{
+	return m_curdoc;
+}
+
+// =============================================================================
+// Sets the given file as the current one on display. At some point in time this
+// was an operation completely unheard of. ;)
+//
+// TODO: f can be temporarily null. This probably should not be the case.
+// -----------------------------------------------------------------------------
+void LDDocument::setCurrent (LDDocument* f)
+{
+	// Implicit files were loaded for caching purposes and must never be set
+	// current.
+	if (f && f->isImplicit())
+		return;
+
+	m_curdoc = f;
+
+	if (g_win && f)
+	{
+		// A ton of stuff needs to be updated
+		g_win->updateDocumentListItem (f);
+		g_win->buildObjList();
+		g_win->updateTitle();
+		g_win->R()->setFile (f);
+		g_win->R()->repaint();
+		log ("Changed file to %1", f->getDisplayName());
+	}
+}
+
+// =============================================================================
+// -----------------------------------------------------------------------------
+int LDDocument::countExplicitFiles()
+{
+	int count = 0;
+
+	for (LDDocument* f : g_loadedFiles)
+		if (f->isImplicit() == false)
+			count++;
+
+	return count;
+}
+
+// =============================================================================
+// This little beauty closes the initial file that was open at first when opening
+// a new file over it.
+// -----------------------------------------------------------------------------
+void LDDocument::closeInitialFile()
+{
+	if (
+		countExplicitFiles() == 2 &&
+		g_loadedFiles[0]->getName().isEmpty() &&
+		g_loadedFiles[1]->getName().isEmpty() == false &&
+		!g_loadedFiles[0]->hasUnsavedChanges()
+	)
+		delete g_loadedFiles[0];
+}
+
+// =============================================================================
+// -----------------------------------------------------------------------------
+void loadLogoedStuds()
+{
+	if (g_logoedStud && g_logoedStud2)
+		return;
+
+	delete g_logoedStud;
+	delete g_logoedStud2;
+
+	g_logoedStud = openDocument ("stud-logo.dat", true);
+	g_logoedStud2 = openDocument ("stud2-logo.dat", true);
+
+	log (LDDocument::tr ("Logoed studs loaded.\n"));
+}
+
+// =============================================================================
+// -----------------------------------------------------------------------------
+void LDDocument::addToSelection (LDObject* obj) // [protected]
+{
+	if (obj->isSelected())
+		return;
+
+	assert (obj->getFile() == this);
+	m_sel << obj;
+	obj->setSelected (true);
+}
+
+// =============================================================================
+// -----------------------------------------------------------------------------
+void LDDocument::removeFromSelection (LDObject* obj) // [protected]
+{
+	if (!obj->isSelected())
+		return;
+
+	assert (obj->getFile() == this);
+	m_sel.removeOne (obj);
+	obj->setSelected (false);
+}
+
+// =============================================================================
+// -----------------------------------------------------------------------------
+void LDDocument::clearSelection()
+{
+	for (LDObject* obj : m_sel)
+		removeFromSelection (obj);
+
+	assert (m_sel.isEmpty());
+}
+
+// =============================================================================
+// -----------------------------------------------------------------------------
+const LDObjectList& LDDocument::getSelection() const
+{
+	return m_sel;
+}
+
+// =============================================================================
+// -----------------------------------------------------------------------------
+void LDDocument::swapObjects (LDObject* one, LDObject* other)
+{
+	int a = m_Objects.indexOf (one);
+	int b = m_Objects.indexOf (other);
+	assert (a != b && a != -1 && b != -1);
+	m_Objects[b] = one;
+	m_Objects[a] = other;
+	addToHistory (new SwapHistory (one->getID(), other->getID()));
+}
+
+// =============================================================================
+// -----------------------------------------------------------------------------
+QString LDDocument::shortenName (QString a) // [static]
+{
+	QString shortname = basename (a);
+	QString topdirname = basename (dirname (a));
+
+	if (g_specialSubdirectories.contains (topdirname))
+		shortname.prepend (topdirname + "\\");
+
+	return shortname;
+}
+
+// =============================================================================
+// -----------------------------------------------------------------------------
+void LDDocument::addReference (LDDocumentPointer* ptr)
+{
+	pushToReferences (ptr);
+}
+
+// =============================================================================
+// -----------------------------------------------------------------------------
+void LDDocument::removeReference (LDDocumentPointer* ptr)
+{
+	removeFromReferences (ptr);
+
+	if (getReferences().size() == 0)
+		invokeLater (closeUnused);
+}
\ No newline at end of file