#include <QtGui>#include "mainwindow.h"MainWindow::MainWindow(){	resize(800,600);	form = new Form(this);	setCentralWidget(form);	setWindowTitle(tr("Image Print"));		createActions();	createMenus();	createToolBars();	createStatusBar();	createDockWindows();}void MainWindow::draw(QAction* action){	if(action == lineAct)		form->setShape(Form::Line);	else if(action == polylineAct)		form->setShape(Form::Polyline);	else if(action == rectangleAct)		form->setShape(Form::Rectangle);	else if(action == polygonAct)		form->setShape(Form::Polygon);	else if(action == arcAct)		form->setShape(Form::Arc);	else if(action == pieAct)		form->setShape(Form::Pie);	else if(action == chordAct)		form->setShape(Form::Chord);	else if(action == ellipseAct)		form->setShape(Form::Ellipse);	else if((action == textAct))		form->setShape(Form::Text);}void MainWindow::createActions(){    lineAct = new QAction(QIcon(":/images/line.png"), tr("&Line"), this);	lineAct->setCheckable(true);    polylineAct = new QAction(QIcon(":/images/polyline.png"), tr("&polyline"), this);	polylineAct->setCheckable(true);    rectangleAct = new QAction(QIcon(":/images/rectangle.png"), tr("&rectangle"), this);	rectangleAct->setCheckable(true);    polygonAct = new QAction(QIcon(":/images/polygon.png"), tr("&polygon"), this);	polygonAct->setCheckable(true);    arcAct = new QAction(QIcon(":/images/arc.png"), tr("&Arc"), this);	arcAct->setCheckable(true);    pieAct = new QAction(QIcon(":/images/pie.png"), tr("&Pie"), this);	pieAct->setCheckable(true);    chordAct = new QAction(QIcon(":/images/chord.png"), tr("&Chord"), this);	chordAct->setCheckable(true);    ellipseAct = new QAction(QIcon(":/images/ellipse.png"), tr("&Ellipse"), this);	ellipseAct->setCheckable(true);	ellipseAct->setChecked(true);    textAct = new QAction(QIcon(":/images/text.png"), tr("&Text"), this);	textAct->setCheckable(true);    printAct = new QAction(QIcon(":/images/print.png"), tr("&Print..."), this);	drawActGroup = new QActionGroup(this);// 	drawActGroup->setExclusive(true);	drawActGroup->addAction(lineAct);	drawActGroup->addAction(polylineAct);	drawActGroup->addAction(rectangleAct);	drawActGroup->addAction(polygonAct);	drawActGroup->addAction(arcAct);	drawActGroup->addAction(pieAct);	drawActGroup->addAction(chordAct);	drawActGroup->addAction(ellipseAct);	drawActGroup->addAction(textAct);    connect(drawActGroup, SIGNAL(triggered(QAction*)), this, SLOT(draw(QAction*)));    connect(printAct, SIGNAL(triggered()), this, SLOT(print()));	}void MainWindow::createMenus(){    fileMenu = menuBar()->addMenu(tr("&File"));    fileMenu->addAction(printAct);    drawMenu = menuBar()->addMenu(tr("&Draw"));    drawMenu->addAction(lineAct);    drawMenu->addAction(polylineAct);    drawMenu->addAction(rectangleAct);    drawMenu->addAction(polygonAct);    drawMenu->addAction(arcAct);    drawMenu->addAction(pieAct);    drawMenu->addAction(chordAct);    drawMenu->addAction(ellipseAct);    drawMenu->addAction(textAct);}void MainWindow::createToolBars(){    fileToolBar = addToolBar(tr("Print"));    fileToolBar->addAction(printAct);    drawToolBar = addToolBar(tr("Draw"));    drawToolBar->addAction(lineAct);    drawToolBar->addAction(polylineAct);    drawToolBar->addAction(rectangleAct);    drawToolBar->addAction(polygonAct);    drawToolBar->addAction(arcAct);    drawToolBar->addAction(pieAct);    drawToolBar->addAction(chordAct);    drawToolBar->addAction(ellipseAct);	drawToolBar->addSeparator();    drawToolBar->addAction(textAct);	fontCmb = new QFontComboBox(drawToolBar);	drawToolBar->addWidget(fontCmb);	connect(fontCmb, SIGNAL(currentFontChanged(const QFont&)), form, SLOT( fontChanged(const QFont&)));	fontCmb->setCurrentFont(font());}void MainWindow::createStatusBar(){    statusBar()->showMessage(tr("Ready"));}void MainWindow::createDockWindows(){    QDockWidget *dock = new QDockWidget(tr("Palette"), this);    dock->setAllowedAreas(Qt::LeftDockWidgetArea | Qt::RightDockWidgetArea);    paletteWidget = new Palette(dock);    dock->setWidget(paletteWidget);    addDockWidget(Qt::LeftDockWidgetArea, dock);	connect(paletteWidget, SIGNAL(penChanged(QPen&)), form, SLOT(penChanged(QPen&)));	connect(paletteWidget, SIGNAL(brushChanged(QBrush&)), form, SLOT(brushChanged(QBrush&)));}void MainWindow::print(){	QPrinter printer;	QPrintDialog *dialog = new QPrintDialog(&printer, this);    dialog->setWindowTitle(tr("Print Graphics"));    if (dialog->exec() != QDialog::Accepted)         return;      QPainter painter;     painter.begin(&printer);     QPixmap pixmap=QPixmap::grabWidget(form);     painter.drawPixmap(0,0,pixmap);     painter.end();    }