#include <QtGui>#include "mainwindow.h"MainWindow::MainWindow(){	clipboard = QApplication::clipboard();	imageWidget = new ImageWidget;    scrollArea = new QScrollArea;    scrollArea->setBackgroundRole(QPalette::Dark); 	imageWidget->setSizePolicy(QSizePolicy::Ignored, QSizePolicy::Ignored);    scrollArea->setWidget(imageWidget);	scrollArea->widget()->setMinimumSize(320, 240);	    setCentralWidget(scrollArea);    createActions();    createMenus();    createToolBars();    createStatusBar();	setWindowTitle(tr("zeki"));	setFocusPolicy(Qt::StrongFocus);	index = 0;		imageDir.setPath(QDir::currentPath());	QStringList filter;	filter << "*.jpg" << "*.bmp" << "*.jpeg" << "*.png" << "*.xpm";	imageList = imageDir.entryList ( filter, QDir::Files );	next();}void MainWindow::resizeEvent(QResizeEvent * event){	QRect childRect = scrollArea->childrenRect();	imageWidget->resize(childRect.size());}void MainWindow::createActions(){    dirAct = new QAction(QIcon(":/images/open.png"), tr("Open"), this);    dirAct->setShortcut(QKeySequence::Open);    connect(dirAct, SIGNAL(triggered()), this, SLOT(selectDir()));	prevAct = new QAction(QIcon(":/images/previous.png"), tr("Previous"), this);    prevAct->setShortcut(QKeySequence::Back);    connect(prevAct, SIGNAL(triggered()), this, SLOT(prev()));	nextAct = new QAction(QIcon(":/images/next.png"), tr("Next"), this);    nextAct->setShortcut(QKeySequence::Forward);    connect(nextAct, SIGNAL(triggered()), this, SLOT(next()));    leftAct = new QAction(QIcon(":/images/rotate_left.png"), tr("Left"), this);    leftAct->setShortcut(tr("Ctrl+L"));    connect(leftAct, SIGNAL(triggered()), this, SLOT(rotateLeft()));    rightAct = new QAction(QIcon(":/images/rotate_right.png"), tr("Right"), this);    rightAct->setShortcut(tr("Ctrl+R"));    connect(rightAct, SIGNAL(triggered()), this, SLOT(rotateRight()));    zoomInAct = new QAction(QIcon(":/images/zoomin.png"), tr("ZoomIn"), this);    zoomInAct->setShortcut(QKeySequence::ZoomIn);    connect(zoomInAct, SIGNAL(triggered()), this, SLOT(zoomIn()));    zoomOutAct = new QAction(QIcon(":/images/zoomout.png"), tr("ZoomOut"), this);    zoomOutAct->setShortcut(QKeySequence::ZoomOut);    connect(zoomOutAct, SIGNAL(triggered()), this, SLOT(zoomOut()));    actualSizeAct = new QAction(QIcon(":/images/actualsize.png"), tr("Actual"), this);    actualSizeAct->setShortcut(Qt::Key_Home);    connect(actualSizeAct, SIGNAL(triggered()), this, SLOT(actualSize()));    fitSizeAct = new QAction(QIcon(":/images/fitwindow.png"), tr("Fit"), this);    fitSizeAct->setShortcut(Qt::Key_End);    connect(fitSizeAct, SIGNAL(triggered()), this, SLOT(fitSize()));    copyAct = new QAction(QIcon(":/images/copy.png"), tr("Copy"), this);    copyAct->setShortcut(QKeySequence::Copy);    connect(copyAct, SIGNAL(triggered()), this, SLOT(copy()));    printAct = new QAction(QIcon(":/images/print.png"), tr("Print"), this);    printAct->setShortcut(QKeySequence::Print);    connect(printAct, SIGNAL(triggered()), this, SLOT(print()));    presentAct = new QAction(QIcon(":/images/present.png"), tr("Present"), this);    presentAct->setShortcut(Qt::Key_F5);    connect(presentAct, SIGNAL(triggered()), this, SLOT(present()));}void MainWindow::createMenus(){    naviMenu = menuBar()->addMenu(tr("Navigation"));    naviMenu->addAction(prevAct);    naviMenu->addAction(nextAct);    operMenu = menuBar()->addMenu(tr("Operation"));    operMenu->addAction(leftAct);    operMenu->addAction(rightAct);    operMenu->addAction(zoomInAct);    operMenu->addAction(zoomOutAct);    operMenu->addAction(actualSizeAct);    operMenu->addAction(fitSizeAct);    operMenu->addSeparator();	operMenu->addAction(copyAct);    operMenu->addAction(printAct);    operMenu->addAction(presentAct);}void MainWindow::createToolBars(){    naviToolBar = addToolBar(tr("Navigation"));    naviToolBar->addAction(dirAct);    naviToolBar->addSeparator();    naviToolBar->addAction(prevAct);    naviToolBar->addAction(nextAct);    operToolBar = addToolBar(tr("Operation"));    operToolBar->addAction(leftAct);    operToolBar->addAction(rightAct);    operToolBar->addAction(zoomInAct);    operToolBar->addAction(zoomOutAct);    operToolBar->addAction(actualSizeAct);    operToolBar->addAction(fitSizeAct);    operToolBar->addSeparator();	operToolBar->addAction(copyAct);    operToolBar->addAction(printAct);    operToolBar->addAction(presentAct);}void MainWindow::createStatusBar(){    statusBar()->showMessage(tr("Ready"));}void MainWindow::selectDir(){	QString dir = QFileDialog::getExistingDirectory(this, tr("Open Directory"),											"/windows/E/Wife/USA photo/5.3",											QFileDialog::ShowDirsOnly											| QFileDialog::DontResolveSymlinks);	if(dir.isEmpty())		return;	imageDir.setPath(dir);	QStringList filter;	filter << "*.jpg" << "*.bmp" << "*.jpeg" << "*.png" << "*.xpm";	imageList = imageDir.entryList ( filter, QDir::Files );	next();}void MainWindow::next(){	if(index < imageList.size())	{		imageWidget->setPixmap(imageDir.absolutePath() + QDir::separator() + imageList.at(index));		statusBar()->showMessage(imageList.at(index));		index++;	}}void MainWindow::prev(){	if(index > 0)	{		imageWidget->setPixmap(imageDir.absolutePath() + QDir::separator() + imageList.at(index));		statusBar()->showMessage(imageList.at(index));		index--;	} 	}void MainWindow::rotateLeft(){	imageWidget->setAngle(-90);}void MainWindow::rotateRight(){	imageWidget->setAngle(90);}void MainWindow::zoomIn(){	imageWidget->scale *= 1.25;	zoomInAct->setEnabled(imageWidget->scale < 3);	zoomOutAct->setEnabled(imageWidget->scale > 0.333);	imageWidget->resize(imageWidget->scale * scrollArea->size());}void MainWindow::zoomOut(){	imageWidget->scale *= 0.8;	zoomInAct->setEnabled(imageWidget->scale < 3);	imageWidget->resize(imageWidget->scale * scrollArea->size());}void MainWindow::actualSize(){	imageWidget->scale = 1;	imageWidget->bFit = false;	imageWidget->update();}void MainWindow::fitSize(){	imageWidget->scale = 1;	imageWidget->bFit = true;	imageWidget->update();}void MainWindow::print(){	QPrinter printer;    QPrintDialog dialog(&printer, this);    if (dialog.exec()) {        QPainter painter(&printer);        QRect rect = painter.viewport();        QSize size = imageWidget->size();        size.scale(rect.size(), Qt::KeepAspectRatio);        painter.setViewport(rect.x(), rect.y(), size.width(), size.height());        painter.setWindow(imageWidget->rect());        painter.drawPixmap(0, 0, QPixmap::grabWidget(imageWidget, imageWidget->rect()));    }}void MainWindow::present(){	statusBar()->hide();	menuBar()->hide();	naviToolBar->hide();	operToolBar->hide();	showFullScreen();}void MainWindow::copy(){	QPixmap pix = imageWidget->getPixmap();	clipboard->setImage(pix.toImage());	}