src/toolsets/basictoolset.cpp

/*
 *  LDForge: LDraw parts authoring CAD
 *  Copyright (C) 2013 - 2017 Teemu 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 <QApplication>
#include <QClipboard>
#include <QDialog>
#include <QDialogButtonBox>
#include <QTextEdit>
#include <QVBoxLayout>
#include "../canvas.h"
#include "../lddocument.h"
#include "../linetypes/modelobject.h"
#include "../linetypes/triangle.h"
#include "../linetypes/quadrilateral.h"
#include "../linetypes/edgeline.h"
#include "../linetypes/conditionaledge.h"
#include "../ldobjectiterator.h"
#include "../mainwindow.h"
#include "../dialogs/colorselector.h"
#include "../dialogs/subfilereferenceeditor.h"
#include "../grid.h"
#include "../parser.h"
#include "../widgets/vertexobjecteditor.h"
#include "basictoolset.h"
#include "guiutilities.h"

BasicToolset::BasicToolset (MainWindow *parent) :
	Toolset (parent) {}

int BasicToolset::copyToClipboard()
{
	const QSet<LDObject*>& objects = selectedObjects();
	int count = 0;
	qApp->clipboard()->clear();
	QString data;

	for (LDObject* obj : objects)
	{
		if (not data.isEmpty())
			data += "\n";

		data += obj->asText();
		++count;
	}

	qApp->clipboard()->setText (data);
	return count;
}

void BasicToolset::cut()
{
	int num = copyToClipboard();
	m_window->deleteSelection();
	print (tr ("%1 objects cut"), num);
}

void BasicToolset::copy()
{
	int num = copyToClipboard();
	print (tr ("%1 objects copied"), num);
}

void BasicToolset::paste()
{
	const QString clipboardText = qApp->clipboard()->text();
	int row = m_window->suggestInsertPoint();
	mainWindow()->clearSelection();
	int count = 0;

	for (QString line : clipboardText.split("\n"))
	{
		Parser::parseFromString(*currentDocument(), row, line);
		mainWindow()->select(currentDocument()->index(row));
		row += 1;
		count += 1;
	}

	print(tr("%1 objects pasted"), count);
	m_window->refresh();
}

void BasicToolset::remove()
{
	int num = m_window->deleteSelection();
	print (tr ("%1 objects deleted"), num);
}

void BasicToolset::doInline (bool deep)
{
	for (LDSubfileReference* reference : filterByType<LDSubfileReference> (selectedObjects()))
	{
		// Get the index of the subfile so we know where to insert the
		// inlined contents.
		QPersistentModelIndex referenceIndex = currentDocument()->indexOf(reference);
		int row = referenceIndex.row();

		if (referenceIndex.isValid())
		{
			Model inlined {m_documents};
			reference->inlineContents(m_documents, inlined, deep, false);

			// Merge in the inlined objects
			for (LDObject* inlinedObject : inlined.objects())
			{
				currentDocument()->insertCopy(row, inlinedObject);
				mainWindow()->select(currentDocument()->index(row));
				row += 1;
			}

			// Delete the subfile now as it's been inlined.
			currentDocument()->removeRow(referenceIndex.row());
		}
	}

	for (LDBezierCurve* curve : filterByType<LDBezierCurve> (selectedObjects()))
	{
		Model curveModel {m_documents};
		curve->rasterize(curveModel, grid()->bezierCurveSegments());
		currentDocument()->replace(curve, curveModel);
	}
}

void BasicToolset::inlineShallow()
{
	doInline (false);
}

void BasicToolset::inlineDeep()
{
	doInline (true);
}

void BasicToolset::undo()
{
	currentDocument()->undo();
}

void BasicToolset::redo()
{
	currentDocument()->redo();
}

void BasicToolset::uncolor()
{
	int num = 0;

	for (LDObject* obj : selectedObjects())
	{
		if (not obj->isColored())
			continue;

		obj->setColor (obj->defaultColor());
		num++;
	}

	print (tr ("%1 objects uncolored"), num);
}

void BasicToolset::insertRaw()
{
	int row = m_window->suggestInsertPoint();

	QDialog* const dlg = new QDialog;
	QVBoxLayout* const layout = new QVBoxLayout;
	QTextEdit* const inputbox = new QTextEdit;
	QDialogButtonBox* const buttons = new QDialogButtonBox (QDialogButtonBox::Ok | QDialogButtonBox::Cancel);

	layout->addWidget (inputbox);
	layout->addWidget (buttons);
	dlg->setLayout (layout);
	dlg->setWindowTitle (APPNAME " - Insert Raw");
	dlg->connect (buttons, SIGNAL (accepted()), dlg, SLOT (accept()));
	dlg->connect (buttons, SIGNAL (rejected()), dlg, SLOT (reject()));

	if (dlg->exec() == QDialog::Rejected)
		return;

	mainWindow()->clearSelection();

	for (QString line : QString (inputbox->toPlainText()).split ("\n"))
	{
		Parser::parseFromString(*currentDocument(), row, line);
		mainWindow()->select(currentDocument()->index(row));
		row += 1;
	}

	m_window->refresh();
}

void BasicToolset::setColor()
{
	if (selectedObjects().isEmpty())
		return;

	QSet<LDObject*> objs = selectedObjects();

	// If all selected objects have the same color, said color is our default
	// value to the color selection dialog.
	LDColor color;
	LDColor defaultcol = m_window->getUniformSelectedColor();

	// Show the dialog to the user now and ask for a color.
	if (ColorSelector::selectColor (m_window, color, defaultcol))
	{
		for (LDObject* obj : objs)
		{
			if (obj->isColored())
				obj->setColor (color);
		}
	}
}

void BasicToolset::invert()
{
	for (LDObject* obj : selectedObjects())
	{
		if (obj->numPolygonVertices() > 0)
		{
			QVector<Vertex> vertices;

			for (int i = 0; i < obj->numPolygonVertices(); i += 1)
				vertices.append(obj->vertex(i));

			for (int i = 0; i < vertices.size(); i += 1)
				obj->setVertex(i, vertices[vertices.size() - 1 - i]);
		}
		else if (obj->type() == LDObjectType::SubfileReference)
		{
			// Check whether subfile is flat
			int axisSet = (1 << X) | (1 << Y) | (1 << Z);
			Model model {currentDocument()->documentManager()};
			LDSubfileReference* reference = static_cast<LDSubfileReference*>(obj);
			reference->fileInfo(m_documents)->inlineContents(model, true, false);

			for (LDObject* subobj : model.objects())
			{
				for (int i = 0; i < subobj->numVertices(); ++i)
				{
					Vertex const& vrt = subobj->vertex (i);

					if (axisSet & (1 << X) and vrt.x() != 0.0)
						axisSet &= ~(1 << X);

					if (axisSet & (1 << Y) and vrt.y() != 0.0)
						axisSet &= ~(1 << Y);

					if (axisSet & (1 << Z) and vrt.z() != 0.0)
						axisSet &= ~(1 << Z);
				}

				if (axisSet == 0)
					break;
			}

			if (axisSet != 0)
			{
				// Subfile has all vertices zero on one specific plane, so it is flat.
				// Let's flip it.
				Matrix matrixModifier = Matrix::identity;

				if (axisSet & (1 << X))
					matrixModifier(0, 0) = -1;

				if (axisSet & (1 << Y))
					matrixModifier(1, 1) = -1;

				if (axisSet & (1 << Z))
					matrixModifier(2, 2) = -1;

				reference->setTransformationMatrix(reference->transformationMatrix() * matrixModifier);
			}
			else
			{
				// Subfile is not flat. Resort to invertnext.
				reference->setInverted(not reference->isInverted());
			}
		}
	}
}

template<typename T>
static void createObject(MainWindow* window)
{
	LDObject* object = window->currentDocument()->emplaceAt<T>(window->suggestInsertPoint());
	::editObject(window, object);
}

void BasicToolset::newSubfile()
{
	createObject<LDSubfileReference>(this->m_window);
}

void BasicToolset::newLine()
{
	createObject<LDEdgeLine>(this->m_window);
}

void BasicToolset::newTriangle()
{
	createObject<LDTriangle>(this->m_window);
}

void BasicToolset::newQuadrilateral()
{
	createObject<LDQuadrilateral>(this->m_window);
}

void BasicToolset::newConditionalLine()
{
	createObject<LDConditionalEdge>(this->m_window);
}

void BasicToolset::newComment()
{
	// TODO:
}

void BasicToolset::newBFC()
{
	// TODO:
}

void BasicToolset::edit()
{
	if (countof(selectedObjects()) == 1)
	{
		LDObject* obj = *selectedObjects().begin();
		if (obj->numVertices() > 0)
		{
			VertexObjectEditor editor {obj};
			editor.exec();
		}
	}
}

void BasicToolset::modeSelect()
{
	m_window->renderer()->setEditMode (EditModeType::Select);
}

void BasicToolset::modeCurve()
{
	m_window->renderer()->setEditMode (EditModeType::Curve);
}

void BasicToolset::modeDraw()
{
	m_window->renderer()->setEditMode (EditModeType::Draw);
}

void BasicToolset::modeRectangle()
{
	m_window->renderer()->setEditMode (EditModeType::Rectangle);
}

void BasicToolset::modeCircle()
{
	m_window->renderer()->setEditMode (EditModeType::Circle);
}

void BasicToolset::modeMagicWand()
{
 	m_window->renderer()->setEditMode (EditModeType::MagicWand);
}

void BasicToolset::modeLinePath()
{
	m_window->renderer()->setEditMode (EditModeType::LinePath);
}