src/mainWindow.cc

changeset 706
d79083b9f74d
parent 655
b376645315ab
child 662
2f1bd9112408
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/mainWindow.cc	Sat Mar 29 05:38:03 2014 +0200
@@ -0,0 +1,1034 @@
+/*
+ *  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 <QMessageBox>
+#include <QEvent>
+#include <QContextMenuEvent>
+#include <QMenuBar>
+#include <QStatusBar>
+#include <QSplitter>
+#include <QListWidget>
+#include <QToolButton>
+#include <QComboBox>
+#include <QDialogButtonBox>
+#include <QToolBar>
+#include <QProgressBar>
+#include <QLabel>
+#include <QFileDialog>
+#include <QPushButton>
+#include <QCoreApplication>
+#include <QTimer>
+#include <QMetaMethod>
+#include "main.h"
+#include "glRenderer.h"
+#include "mainWindow.h"
+#include "ldDocument.h"
+#include "configuration.h"
+#include "miscallenous.h"
+#include "colors.h"
+#include "editHistory.h"
+#include "radioGroup.h"
+#include "addObjectDialog.h"
+#include "messageLog.h"
+#include "configuration.h"
+#include "ui_ldforge.h"
+
+static bool g_isSelectionLocked = false;
+
+cfg (Bool, lv_colorize, true);
+cfg (String, gui_colortoolbar, "16:24:|:4:25:14:27:2:3:11:1:22:|:0:72:71:15");
+cfg (Bool, gui_implicitfiles, false);
+extern_cfg (List,		io_recentfiles);
+extern_cfg (Bool,		gl_axes);
+extern_cfg (String,	gl_maincolor);
+extern_cfg (Float,	gl_maincolor_alpha);
+extern_cfg (Bool,		gl_wireframe);
+extern_cfg (Bool,		gl_colorbfc);
+extern_cfg (Bool,		gl_drawangles);
+
+// =============================================================================
+//
+MainWindow::MainWindow (QWidget* parent, Qt::WindowFlags flags) :
+	QMainWindow (parent, flags)
+{
+	g_win = this;
+	ui = new Ui_LDForgeUI;
+	ui->setupUi (this);
+	m_updatingTabs = false;
+	m_renderer = new GLRenderer (this);
+	m_tabs = new QTabBar;
+	ui->verticalLayout->insertWidget (0, m_tabs);
+
+	// Stuff the renderer into its frame
+	QVBoxLayout* rendererLayout = new QVBoxLayout (ui->rendererFrame);
+	rendererLayout->addWidget (R());
+
+	connect (ui->objectList, SIGNAL (itemSelectionChanged()), this, SLOT (slot_selectionChanged()));
+	connect (ui->objectList, SIGNAL (itemDoubleClicked (QListWidgetItem*)), this, SLOT (slot_editObject (QListWidgetItem*)));
+	connect (m_tabs, SIGNAL (currentChanged(int)), this, SLOT (changeCurrentFile()));
+
+	// Init message log manager
+	m_msglog = new MessageManager;
+	m_msglog->setRenderer (R());
+	m_renderer->setMessageLog (m_msglog);
+	m_quickColors = quickColorsFromConfig();
+	slot_selectionChanged();
+	setStatusBar (new QStatusBar);
+
+	// Make certain actions checkable
+	ui->actionAxes->setChecked (gl_axes);
+	ui->actionWireframe->setChecked (gl_wireframe);
+	ui->actionBFCView->setChecked (gl_colorbfc);
+	updateGridToolBar();
+	updateEditModeActions();
+	updateRecentFilesMenu();
+	updateColorToolbar();
+	updateTitle();
+	updateActionShortcuts();
+
+	setMinimumSize (300, 200);
+
+	connect (qApp, SIGNAL (aboutToQuit()), this, SLOT (slot_lastSecondCleanup()));
+
+	// Connect all actions
+	for (QAction* act : findChildren<QAction*>())
+		if (!act->objectName().isEmpty())
+			connect (act, SIGNAL (triggered()), this, SLOT (slot_action()));
+}
+
+// =============================================================================
+//
+KeySequenceConfig* MainWindow::shortcutForAction (QAction* action)
+{
+	QString keycfgname = format ("key_%1", action->objectName());
+	return KeySequenceConfig::getByName (keycfgname);
+}
+
+// =============================================================================
+//
+void MainWindow::updateActionShortcuts()
+{
+	for (QAction* act : findChildren<QAction*>())
+	{
+		KeySequenceConfig* cfg = shortcutForAction (act);
+
+		if (cfg)
+			act->setShortcut (cfg->getValue());
+	}
+}
+
+// =============================================================================
+//
+void MainWindow::slot_action()
+{
+	// Get the name of the sender object and use it to compose the slot name,
+	// then invoke this slot to call the action.
+	QMetaObject::invokeMethod (this,
+		qPrintable (format ("slot_%1", sender()->objectName())), Qt::DirectConnection);
+	endAction();
+}
+
+// =============================================================================
+//
+void MainWindow::endAction()
+{
+	// Add a step in the history now.
+	getCurrentDocument()->addHistoryStep();
+
+	// Update the list item of the current file - we may need to draw an icon
+	// now that marks it as having unsaved changes.
+	updateDocumentListItem (getCurrentDocument());
+}
+
+// =============================================================================
+//
+void MainWindow::slot_lastSecondCleanup()
+{
+	delete m_renderer;
+	delete ui;
+}
+
+// =============================================================================
+//
+void MainWindow::updateRecentFilesMenu()
+{
+	// First, clear any items in the recent files menu
+for (QAction * recent : m_recentFiles)
+		delete recent;
+
+	m_recentFiles.clear();
+
+	QAction* first = null;
+
+	for (const QVariant& it : io_recentfiles)
+	{
+		QString file = it.toString();
+		QAction* recent = new QAction (getIcon ("open-recent"), file, this);
+
+		connect (recent, SIGNAL (triggered()), this, SLOT (slot_recentFile()));
+		ui->menuOpenRecent->insertAction (first, recent);
+		m_recentFiles << recent;
+		first = recent;
+	}
+}
+
+// =============================================================================
+//
+QList<LDQuickColor> quickColorsFromConfig()
+{
+	QList<LDQuickColor> colors;
+
+	for (QString colorname : gui_colortoolbar.split (":"))
+	{
+		if (colorname == "|")
+			colors << LDQuickColor::getSeparator();
+		else
+		{
+			LDColor* col = getColor (colorname.toLong());
+
+			if (col != null)
+				colors << LDQuickColor (col, null);
+		}
+	}
+
+	return colors;
+}
+
+// =============================================================================
+//
+void MainWindow::updateColorToolbar()
+{
+	m_colorButtons.clear();
+	ui->colorToolbar->clear();
+
+	for (LDQuickColor& entry : m_quickColors)
+	{
+		if (entry.isSeparator())
+			ui->colorToolbar->addSeparator();
+		else
+		{
+			QToolButton* colorButton = new QToolButton;
+			colorButton->setIcon (makeColorIcon (entry.color(), 22));
+			colorButton->setIconSize (QSize (22, 22));
+			colorButton->setToolTip (entry.color()->name);
+
+			connect (colorButton, SIGNAL (clicked()), this, SLOT (slot_quickColor()));
+			ui->colorToolbar->addWidget (colorButton);
+			m_colorButtons << colorButton;
+
+			entry.setToolButton (colorButton);
+		}
+	}
+
+	updateGridToolBar();
+}
+
+// =============================================================================
+//
+void MainWindow::updateGridToolBar()
+{
+	// Ensure that the current grid - and only the current grid - is selected.
+	ui->actionGridCoarse->setChecked (grid == Grid::Coarse);
+	ui->actionGridMedium->setChecked (grid == Grid::Medium);
+	ui->actionGridFine->setChecked (grid == Grid::Fine);
+}
+
+// =============================================================================
+//
+void MainWindow::updateTitle()
+{
+	QString title = format (APPNAME " %1", fullVersionString());
+
+	// Append our current file if we have one
+	if (getCurrentDocument())
+	{
+		if (getCurrentDocument()->name().length() > 0)
+			title += format (": %1", basename (getCurrentDocument()->name()));
+		else
+			title += format (": <anonymous>");
+
+		if (getCurrentDocument()->getObjectCount() > 0 &&
+				getCurrentDocument()->getObject (0)->type() == LDObject::EComment)
+		{
+			// Append title
+			LDComment* comm = static_cast<LDComment*> (getCurrentDocument()->getObject (0));
+			title += format (": %1", comm->text());
+		}
+
+		if (getCurrentDocument()->hasUnsavedChanges())
+			title += '*';
+	}
+
+#ifdef DEBUG
+	title += " [debug build]";
+#elif BUILD_ID != BUILD_RELEASE
+	title += " [pre-release build]";
+#endif // DEBUG
+
+#ifdef COMPILE_DATE
+	title += " (built " COMPILE_DATE ")";
+#endif // COMPILE_DATE
+
+	setWindowTitle (title);
+}
+
+// =============================================================================
+//
+int MainWindow::deleteSelection()
+{
+	if (selection().isEmpty())
+		return 0;
+
+	LDObjectList selCopy = selection();
+
+	// Delete the objects that were being selected
+	for (LDObject* obj : selCopy)
+		obj->destroy();
+
+	refresh();
+	return selCopy.size();
+}
+
+// =============================================================================
+//
+void MainWindow::buildObjList()
+{
+	if (!getCurrentDocument())
+		return;
+
+	// Lock the selection while we do this so that refreshing the object list
+	// doesn't trigger selection updating so that the selection doesn't get lost
+	// while this is done.
+	g_isSelectionLocked = true;
+
+	for (int i = 0; i < ui->objectList->count(); ++i)
+		delete ui->objectList->item (i);
+
+	ui->objectList->clear();
+
+	for (LDObject* obj : getCurrentDocument()->objects())
+	{
+		QString descr;
+
+		switch (obj->type())
+		{
+			case LDObject::EComment:
+			{
+				descr = static_cast<LDComment*> (obj)->text();
+
+				// Remove leading whitespace
+				while (descr[0] == ' ')
+					descr.remove (0, 1);
+
+				break;
+			}
+
+			case LDObject::EEmpty:
+				break; // leave it empty
+
+			case LDObject::ELine:
+			case LDObject::ETriangle:
+			case LDObject::EQuad:
+			case LDObject::ECondLine:
+			{
+				for (int i = 0; i < obj->vertices(); ++i)
+				{
+					if (i != 0)
+						descr += ", ";
+
+					descr += obj->vertex (i).toString (true);
+				}
+				break;
+			}
+
+			case LDObject::EError:
+			{
+				descr = format ("ERROR: %1", obj->asText());
+				break;
+			}
+
+			case LDObject::EVertex:
+			{
+				descr = static_cast<LDVertex*> (obj)->pos.toString (true);
+				break;
+			}
+
+			case LDObject::ESubfile:
+			{
+				LDSubfile* ref = static_cast<LDSubfile*> (obj);
+
+				descr = format ("%1 %2, (", ref->fileInfo()->getDisplayName(), ref->position().toString (true));
+
+				for (int i = 0; i < 9; ++i)
+					descr += format ("%1%2", ref->transform()[i], (i != 8) ? " " : "");
+
+				descr += ')';
+				break;
+			}
+
+			case LDObject::EBFC:
+			{
+				descr = LDBFC::k_statementStrings[static_cast<LDBFC*> (obj)->statement()];
+				break;
+			}
+
+			case LDObject::EOverlay:
+			{
+				LDOverlay* ovl = static_cast<LDOverlay*> (obj);
+				descr = format ("[%1] %2 (%3, %4), %5 x %6", g_CameraNames[ovl->camera()],
+					basename (ovl->fileName()), ovl->x(), ovl->y(),
+					ovl->width(), ovl->height());
+				break;
+			}
+
+			default:
+			{
+				descr = obj->typeName();
+				break;
+			}
+		}
+
+		QListWidgetItem* item = new QListWidgetItem (descr);
+		item->setIcon (getIcon (obj->typeName()));
+
+		// Use italic font if hidden
+		if (obj->isHidden())
+		{
+			QFont font = item->font();
+			font.setItalic (true);
+			item->setFont (font);
+		}
+
+		// Color gibberish orange on red so it stands out.
+		if (obj->type() == LDObject::EError)
+		{
+			item->setBackground (QColor ("#AA0000"));
+			item->setForeground (QColor ("#FFAA00"));
+		}
+		elif (lv_colorize && obj->isColored() && obj->color() != maincolor && obj->color() != edgecolor)
+		{
+			// If the object isn't in the main or edge color, draw this
+			// list entry in said color.
+			LDColor* col = getColor (obj->color());
+
+			if (col)
+				item->setForeground (col->faceColor);
+		}
+
+		obj->qObjListEntry = item;
+		ui->objectList->insertItem (ui->objectList->count(), item);
+	}
+
+	g_isSelectionLocked = false;
+	updateSelection();
+	scrollToSelection();
+}
+
+// =============================================================================
+//
+void MainWindow::scrollToSelection()
+{
+	if (selection().isEmpty())
+		return;
+
+	LDObject* obj = selection().last();
+	ui->objectList->scrollToItem (obj->qObjListEntry);
+}
+
+// =============================================================================
+//
+void MainWindow::slot_selectionChanged()
+{
+	if (g_isSelectionLocked == true || getCurrentDocument() == null)
+		return;
+
+	// Update the shared selection array, though don't do this if this was
+	// called during GL picking, in which case the GL renderer takes care
+	// of the selection.
+	if (m_renderer->isPicking())
+		return;
+
+	LDObjectList priorSelection = selection();
+
+	// Get the objects from the object list selection
+	getCurrentDocument()->clearSelection();
+	const QList<QListWidgetItem*> items = ui->objectList->selectedItems();
+
+	for (LDObject* obj : getCurrentDocument()->objects())
+	{
+		for (QListWidgetItem* item : items)
+		{
+			if (item == obj->qObjListEntry)
+			{
+				obj->select();
+				break;
+			}
+		}
+	}
+
+	// Update the GL renderer
+	LDObjectList compound = priorSelection + selection();
+	removeDuplicates (compound);
+
+	for (LDObject* obj : compound)
+		m_renderer->compileObject (obj);
+
+	m_renderer->update();
+}
+
+// =============================================================================
+//
+void MainWindow::slot_recentFile()
+{
+	QAction* qAct = static_cast<QAction*> (sender());
+	openMainFile (qAct->text());
+}
+
+// =============================================================================
+//
+void MainWindow::slot_quickColor()
+{
+	QToolButton* button = static_cast<QToolButton*> (sender());
+	LDColor* col = null;
+
+	for (const LDQuickColor& entry : m_quickColors)
+	{
+		if (entry.toolButton() == button)
+		{
+			col = entry.color();
+			break;
+		}
+	}
+
+	if (col == null)
+		return;
+
+	int newColor = col->index;
+
+	for (LDObject* obj : selection())
+	{
+		if (obj->isColored() == false)
+			continue; // uncolored object
+
+		obj->setColor (newColor);
+		R()->compileObject (obj);
+	}
+
+	endAction();
+	refresh();
+}
+
+// =============================================================================
+//
+int MainWindow::getInsertionPoint()
+{
+	// If we have a selection, put the item after it.
+	if (!selection().isEmpty())
+		return selection().last()->lineNumber() + 1;
+
+	// Otherwise place the object at the end.
+	return getCurrentDocument()->getObjectCount();
+}
+
+// =============================================================================
+//
+void MainWindow::doFullRefresh()
+{
+	buildObjList();
+	m_renderer->hardRefresh();
+}
+
+// =============================================================================
+//
+void MainWindow::refresh()
+{
+	buildObjList();
+	m_renderer->update();
+}
+
+// =============================================================================
+//
+void MainWindow::updateSelection()
+{
+	g_isSelectionLocked = true;
+
+	for (LDObject* obj : getCurrentDocument()->objects())
+		obj->setSelected (false);
+
+	ui->objectList->clearSelection();
+
+	for (LDObject* obj : selection())
+	{
+		if (obj->qObjListEntry == null)
+			continue;
+
+		obj->qObjListEntry->setSelected (true);
+		obj->setSelected (true);
+	}
+
+	g_isSelectionLocked = false;
+	slot_selectionChanged();
+}
+
+// =============================================================================
+//
+int MainWindow::getSelectedColor()
+{
+	int result = -1;
+
+	for (LDObject* obj : selection())
+	{
+		if (obj->isColored() == false)
+			continue; // doesn't use color
+
+		if (result != -1 && obj->color() != result)
+			return -1; // No consensus in object color
+
+		if (result == -1)
+			result = obj->color();
+	}
+
+	return result;
+}
+
+// =============================================================================
+//
+LDObject::Type MainWindow::getUniformSelectedType()
+{
+	LDObject::Type result = LDObject::EUnidentified;
+
+	for (LDObject* obj : selection())
+	{
+		if (result != LDObject::EUnidentified && obj->color() != result)
+			return LDObject::EUnidentified;
+
+		if (result == LDObject::EUnidentified)
+			result = obj->type();
+	}
+
+	return result;
+}
+
+// =============================================================================
+//
+void MainWindow::closeEvent (QCloseEvent* ev)
+{
+	// Check whether it's safe to close all files.
+	if (!safeToCloseAll())
+	{
+		ev->ignore();
+		return;
+	}
+
+	// Save the configuration before leaving so that, for instance, grid choice
+	// is preserved across instances.
+	Config::save();
+
+	ev->accept();
+}
+
+// =============================================================================
+//
+void MainWindow::spawnContextMenu (const QPoint pos)
+{
+	const bool single = (selection().size() == 1);
+	LDObject* singleObj = (single) ? selection()[0] : null;
+
+	QMenu* contextMenu = new QMenu;
+
+	if (single && singleObj->type() != LDObject::EEmpty)
+	{
+		contextMenu->addAction (ui->actionEdit);
+		contextMenu->addSeparator();
+	}
+
+	contextMenu->addAction (ui->actionCut);
+	contextMenu->addAction (ui->actionCopy);
+	contextMenu->addAction (ui->actionPaste);
+	contextMenu->addAction (ui->actionDelete);
+	contextMenu->addSeparator();
+	contextMenu->addAction (ui->actionSetColor);
+
+	if (single)
+		contextMenu->addAction (ui->actionEditRaw);
+
+	contextMenu->addAction (ui->actionBorders);
+	contextMenu->addAction (ui->actionSetOverlay);
+	contextMenu->addAction (ui->actionClearOverlay);
+	contextMenu->addAction (ui->actionModeSelect);
+	contextMenu->addAction (ui->actionModeDraw);
+	contextMenu->addAction (ui->actionModeCircle);
+
+	if (selection().size() > 0)
+	{
+		contextMenu->addSeparator();
+		contextMenu->addAction (ui->actionSubfileSelection);
+	}
+
+	if (R()->camera() != GL::EFreeCamera)
+	{
+		contextMenu->addSeparator();
+		contextMenu->addAction (ui->actionSetDrawDepth);
+	}
+
+	contextMenu->exec (pos);
+}
+
+// =============================================================================
+//
+void MainWindow::deleteByColor (int colnum)
+{
+	LDObjectList objs;
+
+	for (LDObject* obj : getCurrentDocument()->objects())
+	{
+		if (!obj->isColored() || obj->color() != colnum)
+			continue;
+
+		objs << obj;
+	}
+
+	for (LDObject* obj : objs)
+		obj->destroy();
+}
+
+// =============================================================================
+//
+void MainWindow::updateEditModeActions()
+{
+	const EditMode mode = R()->editMode();
+	ui->actionModeSelect->setChecked (mode == ESelectMode);
+	ui->actionModeDraw->setChecked (mode == EDrawMode);
+	ui->actionModeCircle->setChecked (mode == ECircleMode);
+}
+
+// =============================================================================
+//
+void MainWindow::slot_editObject (QListWidgetItem* listitem)
+{
+	LDObject* obj = null;
+
+	for (LDObject* it : getCurrentDocument()->objects())
+	{
+		if (it->qObjListEntry == listitem)
+		{
+			obj = it;
+			break;
+		}
+	}
+
+	AddObjectDialog::staticDialog (obj->type(), obj);
+}
+
+// =============================================================================
+//
+bool MainWindow::save (LDDocument* doc, bool saveAs)
+{
+	QString path = doc->fullPath();
+
+	if (saveAs || path.isEmpty())
+	{
+		QString name = doc->defaultName();
+
+		if (!doc->fullPath().isEmpty()) 
+			name = doc->fullPath();
+		elif (!doc->name().isEmpty())
+			name = doc->name();
+
+		name.replace ("\\", "/");
+		path = QFileDialog::getSaveFileName (g_win, tr ("Save As"),
+			name, tr ("LDraw files (*.dat *.ldr)"));
+
+		if (path.isEmpty())
+		{
+			// User didn't give a file name, abort.
+			return false;
+		}
+	}
+
+	if (doc->save (path))
+	{
+		if (doc == getCurrentDocument())
+			updateTitle();
+
+		print ("Saved to %1.", path);
+
+		// Add it to recent files
+		addRecentFile (path);
+		return true;
+	}
+
+	QString message = format (tr ("Failed to save to %1: %2"), path, strerror (errno));
+
+	// Tell the user the save failed, and give the option for saving as with it.
+	QMessageBox dlg (QMessageBox::Critical, tr ("Save Failure"), message, QMessageBox::Close, g_win);
+
+	// Add a save-as button
+	QPushButton* saveAsBtn = new QPushButton (tr ("Save As"));
+	saveAsBtn->setIcon (getIcon ("file-save-as"));
+	dlg.addButton (saveAsBtn, QMessageBox::ActionRole);
+	dlg.setDefaultButton (QMessageBox::Close);
+	dlg.exec();
+
+	if (dlg.clickedButton() == saveAsBtn)
+		return save (doc, true); // yay recursion!
+
+	return false;
+}
+
+void MainWindow::addMessage (QString msg)
+{
+	m_msglog->addLine (msg);
+}
+
+// ============================================================================
+void ObjectList::contextMenuEvent (QContextMenuEvent* ev)
+{
+	g_win->spawnContextMenu (ev->globalPos());
+}
+
+// =============================================================================
+//
+QPixmap getIcon (QString iconName)
+{
+	return (QPixmap (format (":/icons/%1.png", iconName)));
+}
+
+// =============================================================================
+//
+bool confirm (const QString& message)
+{
+	return confirm (MainWindow::tr ("Confirm"), message);
+}
+
+// =============================================================================
+//
+bool confirm (const QString& title, const QString& message)
+{
+	return QMessageBox::question (g_win, title, message,
+		(QMessageBox::Yes | QMessageBox::No), QMessageBox::No) == QMessageBox::Yes;
+}
+
+// =============================================================================
+//
+void critical (const QString& message)
+{
+	QMessageBox::critical (g_win, MainWindow::tr ("Error"), message,
+		(QMessageBox::Close), QMessageBox::Close);
+}
+
+// =============================================================================
+//
+QIcon makeColorIcon (LDColor* colinfo, const int size)
+{
+	// Create an image object and link a painter to it.
+	QImage img (size, size, QImage::Format_ARGB32);
+	QPainter paint (&img);
+	QColor col = colinfo->faceColor;
+
+	if (colinfo->index == maincolor)
+	{
+		// Use the user preferences for main color here
+		col = gl_maincolor;
+		col.setAlphaF (gl_maincolor_alpha);
+	}
+
+	// Paint the icon border
+	paint.fillRect (QRect (0, 0, size, size), colinfo->edgeColor);
+
+	// Paint the checkerboard background, visible with translucent icons
+	paint.drawPixmap (QRect (1, 1, size - 2, size - 2), getIcon ("checkerboard"), QRect (0, 0, 8, 8));
+
+	// Paint the color above the checkerboard
+	paint.fillRect (QRect (1, 1, size - 2, size - 2), col);
+	return QIcon (QPixmap::fromImage (img));
+}
+
+// =============================================================================
+//
+void makeColorComboBox (QComboBox* box)
+{
+	std::map<int, int> counts;
+
+	for (LDObject* obj : getCurrentDocument()->objects())
+	{
+		if (!obj->isColored())
+			continue;
+
+		if (counts.find (obj->color()) == counts.end())
+			counts[obj->color()] = 1;
+		else
+			counts[obj->color()]++;
+	}
+
+	box->clear();
+	int row = 0;
+
+	for (const auto& pair : counts)
+	{
+		LDColor* col = getColor (pair.first);
+		assert (col != null);
+
+		QIcon ico = makeColorIcon (col, 16);
+		box->addItem (ico, format ("[%1] %2 (%3 object%4)",
+			pair.first, col->name, pair.second, plural (pair.second)));
+		box->setItemData (row, pair.first);
+
+		++row;
+	}
+}
+
+// =============================================================================
+//
+void MainWindow::updateDocumentList()
+{
+	m_updatingTabs = true;
+
+	while (m_tabs->count() > 0)
+		m_tabs->removeTab (0);
+
+	for (LDDocument* f : g_loadedFiles)
+	{
+		// Don't list implicit files unless explicitly desired.
+		if (f->isImplicit() && !gui_implicitfiles)
+			continue;
+
+		// Add an item to the list for this file and store the tab index
+		// in the document so we can find documents by tab index.
+		f->setTabIndex (m_tabs->addTab (""));
+		updateDocumentListItem (f);
+	}
+
+	m_updatingTabs = false;
+}
+
+// =============================================================================
+//
+void MainWindow::updateDocumentListItem (LDDocument* doc)
+{
+	bool oldUpdatingTabs = m_updatingTabs;
+	m_updatingTabs = true;
+
+	if (doc->tabIndex() == -1)
+	{
+		// We don't have a list item for this file, so the list either doesn't
+		// exist yet or is out of date. Build the list now.
+		updateDocumentList();
+		return;
+	}
+
+	// If this is the current file, it also needs to be the selected item on
+	// the list.
+	if (doc == getCurrentDocument())
+		m_tabs->setCurrentIndex (doc->tabIndex());
+
+	m_tabs->setTabText (doc->tabIndex(), doc->getDisplayName());
+
+	// If the document.has unsaved changes, draw a little icon next to it to mark that.
+	m_tabs->setTabIcon (doc->tabIndex(), doc->hasUnsavedChanges() ? getIcon ("file-save") : QIcon());
+	m_updatingTabs = oldUpdatingTabs;
+}
+
+// =============================================================================
+//
+// A file is selected from the list of files on the left of the screen. Find out
+// which file was picked and change to it.
+//
+void MainWindow::changeCurrentFile()
+{
+	if (m_updatingTabs)
+		return;
+
+	LDDocument* f = null;
+	int tabIndex = m_tabs->currentIndex();
+
+	// Find the file pointer of the item that was selected.
+	for (LDDocument* it : g_loadedFiles)
+	{
+		if (it->tabIndex() == tabIndex)
+		{
+			f = it;
+			break;
+		}
+	}
+
+	// If we picked the same file we're currently on, we don't need to do
+	// anything.
+	if (f == null || f == getCurrentDocument())
+		return;
+
+	LDDocument::setCurrent (f);
+}
+
+// =============================================================================
+//
+void MainWindow::refreshObjectList()
+{
+#if 0
+	ui->objectList->clear();
+	LDDocument* f = getCurrentDocument();
+
+for (LDObject* obj : *f)
+		ui->objectList->addItem (obj->qObjListEntry);
+
+#endif
+
+	buildObjList();
+}
+
+// =============================================================================
+//
+void MainWindow::updateActions()
+{
+	History* his = getCurrentDocument()->history();
+	int pos = his->position();
+	ui->actionUndo->setEnabled (pos != -1);
+	ui->actionRedo->setEnabled (pos < (long) his->getSize() - 1);
+	ui->actionAxes->setChecked (gl_axes);
+	ui->actionBFCView->setChecked (gl_colorbfc);
+	ui->actionDrawAngles->setChecked (gl_drawangles);
+}
+
+// =============================================================================
+//
+QImage imageFromScreencap (uchar* data, int w, int h)
+{
+	// GL and Qt formats have R and B swapped. Also, GL flips Y - correct it as well.
+	return QImage (data, w, h, QImage::Format_ARGB32).rgbSwapped().mirrored();
+}
+
+// =============================================================================
+//
+LDQuickColor::LDQuickColor (LDColor* color, QToolButton* toolButton) :
+	m_color (color),
+	m_toolButton (toolButton) {}
+
+// =============================================================================
+//
+LDQuickColor LDQuickColor::getSeparator()
+{
+	return LDQuickColor (null, null);
+}
+
+// =============================================================================
+//
+bool LDQuickColor::isSeparator() const
+{
+	return color() == null;
+}

mercurial