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/****************************************************************************
**
** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
** Contact: Nokia Corporation (qt-info@nokia.com)
**
** This file is part of the examples of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL$
** No Commercial Usage
** This file contains pre-release code and may not be distributed.
** You may use this file in accordance with the terms and conditions
** contained in the either Technology Preview License Agreement or the
** Beta Release License Agreement.
**
** GNU Lesser General Public License Usage
** Alternatively, this file may be used under the terms of the GNU Lesser
** General Public License version 2.1 as published by the Free Software
** Foundation and appearing in the file LICENSE.LGPL included in the
** packaging of this file. Please review the following information to
** ensure the GNU Lesser General Public License version 2.1 requirements
** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
**
** In addition, as a special exception, Nokia gives you certain
** additional rights. These rights are described in the Nokia Qt LGPL
** Exception version 1.0, included in the file LGPL_EXCEPTION.txt in this
** package.
**
** GNU General Public License Usage
** Alternatively, this file may be used under the terms of the GNU
** General Public License version 3.0 as published by the Free Software
** Foundation and appearing in the file LICENSE.GPL included in the
** packaging of this file. Please review the following information to
** ensure the GNU General Public License version 3.0 requirements will be
** met: http://www.gnu.org/copyleft/gpl.html.
**
** If you are unsure which license is appropriate for your use, please
** contact the sales department at http://qt.nokia.com/contact.
** $QT_END_LICENSE$
**
****************************************************************************/
#include <QtGui>
#include "mainwindow.h"
#include "tabletcanvas.h"
//! [0]
MainWindow::MainWindow(TabletCanvas *canvas)
{
myCanvas = canvas;
createActions();
createMenus();
myCanvas->setColor(Qt::red);
myCanvas->setLineWidthType(TabletCanvas::LineWidthPressure);
myCanvas->setAlphaChannelType(TabletCanvas::NoAlpha);
myCanvas->setColorSaturationType(TabletCanvas::NoSaturation);
setWindowTitle(tr("Tablet Example"));
setCentralWidget(myCanvas);
}
//! [0]
//! [1]
void MainWindow::brushColorAct()
{
QColor color = QColorDialog::getColor(myCanvas->color());
if (color.isValid())
myCanvas->setColor(color);
}
//! [1]
//! [2]
void MainWindow::alphaActionTriggered(QAction *action)
{
if (action == alphaChannelPressureAction) {
myCanvas->setAlphaChannelType(TabletCanvas::AlphaPressure);
} else if (action == alphaChannelTiltAction) {
myCanvas->setAlphaChannelType(TabletCanvas::AlphaTilt);
} else {
myCanvas->setAlphaChannelType(TabletCanvas::NoAlpha);
}
}
//! [2]
//! [3]
void MainWindow::lineWidthActionTriggered(QAction *action)
{
if (action == lineWidthPressureAction) {
myCanvas->setLineWidthType(TabletCanvas::LineWidthPressure);
} else if (action == lineWidthTiltAction) {
myCanvas->setLineWidthType(TabletCanvas::LineWidthTilt);
} else {
myCanvas->setLineWidthType(TabletCanvas::NoLineWidth);
}
}
//! [3]
//! [4]
void MainWindow::saturationActionTriggered(QAction *action)
{
if (action == colorSaturationVTiltAction) {
myCanvas->setColorSaturationType(TabletCanvas::SaturationVTilt);
} else if (action == colorSaturationHTiltAction) {
myCanvas->setColorSaturationType(TabletCanvas::SaturationHTilt);
} else if (action == colorSaturationPressureAction) {
myCanvas->setColorSaturationType(TabletCanvas::SaturationPressure);
} else {
myCanvas->setColorSaturationType(TabletCanvas::NoSaturation);
}
}
//! [4]
//! [5]
void MainWindow::saveAct()
{
QString path = QDir::currentPath() + "/untitled.png";
QString fileName = QFileDialog::getSaveFileName(this, tr("Save Picture"),
path);
if (!myCanvas->saveImage(fileName))
QMessageBox::information(this, "Error Saving Picture",
"Could not save the image");
}
//! [5]
//! [6]
void MainWindow::loadAct()
{
QString fileName = QFileDialog::getOpenFileName(this, tr("Open Picture"),
QDir::currentPath());
if (!myCanvas->loadImage(fileName))
QMessageBox::information(this, "Error Opening Picture",
"Could not open picture");
}
//! [6]
//! [7]
void MainWindow::aboutAct()
{
QMessageBox::about(this, tr("About Tablet Example"),
tr("This example shows use of a Wacom tablet in Qt"));
}
//! [7]
//! [8]
void MainWindow::createActions()
{
//! [8]
brushColorAction = new QAction(tr("&Brush Color..."), this);
brushColorAction->setShortcut(tr("Ctrl+C"));
connect(brushColorAction, SIGNAL(triggered()),
this, SLOT(brushColorAct()));
//! [9]
alphaChannelPressureAction = new QAction(tr("&Pressure"), this);
alphaChannelPressureAction->setCheckable(true);
alphaChannelTiltAction = new QAction(tr("&Tilt"), this);
alphaChannelTiltAction->setCheckable(true);
noAlphaChannelAction = new QAction(tr("No Alpha Channel"), this);
noAlphaChannelAction->setCheckable(true);
noAlphaChannelAction->setChecked(true);
alphaChannelGroup = new QActionGroup(this);
alphaChannelGroup->addAction(alphaChannelPressureAction);
alphaChannelGroup->addAction(alphaChannelTiltAction);
alphaChannelGroup->addAction(noAlphaChannelAction);
connect(alphaChannelGroup, SIGNAL(triggered(QAction *)),
this, SLOT(alphaActionTriggered(QAction *)));
//! [9]
colorSaturationVTiltAction = new QAction(tr("&Vertical Tilt"), this);
colorSaturationVTiltAction->setCheckable(true);
colorSaturationHTiltAction = new QAction(tr("&Horizontal Tilt"), this);
colorSaturationHTiltAction->setCheckable(true);
colorSaturationPressureAction = new QAction(tr("&Pressure"), this);
colorSaturationPressureAction->setCheckable(true);
noColorSaturationAction = new QAction(tr("&No Color Saturation"), this);
noColorSaturationAction->setCheckable(true);
noColorSaturationAction->setChecked(true);
colorSaturationGroup = new QActionGroup(this);
colorSaturationGroup->addAction(colorSaturationVTiltAction);
colorSaturationGroup->addAction(colorSaturationHTiltAction);
colorSaturationGroup->addAction(colorSaturationPressureAction);
colorSaturationGroup->addAction(noColorSaturationAction);
connect(colorSaturationGroup, SIGNAL(triggered(QAction *)),
this, SLOT(saturationActionTriggered(QAction *)));
lineWidthPressureAction = new QAction(tr("&Pressure"), this);
lineWidthPressureAction->setCheckable(true);
lineWidthPressureAction->setChecked(true);
lineWidthTiltAction = new QAction(tr("&Tilt"), this);
lineWidthTiltAction->setCheckable(true);
lineWidthFixedAction = new QAction(tr("&Fixed"), this);
lineWidthFixedAction->setCheckable(true);
lineWidthGroup = new QActionGroup(this);
lineWidthGroup->addAction(lineWidthPressureAction);
lineWidthGroup->addAction(lineWidthTiltAction);
lineWidthGroup->addAction(lineWidthFixedAction);
connect(lineWidthGroup, SIGNAL(triggered(QAction *)),
this, SLOT(lineWidthActionTriggered(QAction *)));
exitAction = new QAction(tr("E&xit"), this);
exitAction->setShortcut(tr("Ctrl+X"));
connect(exitAction, SIGNAL(triggered()),
this, SLOT(close()));
loadAction = new QAction(tr("&Open..."), this);
loadAction->setShortcut(tr("Ctrl+O"));
connect(loadAction, SIGNAL(triggered()),
this, SLOT(loadAct()));
saveAction = new QAction(tr("&Save As..."), this);
saveAction->setShortcut(tr("Ctrl+S"));
connect(saveAction, SIGNAL(triggered()),
this, SLOT(saveAct()));
aboutAction = new QAction(tr("A&bout"), this);
aboutAction->setShortcut(tr("Ctrl+B"));
connect(aboutAction, SIGNAL(triggered()),
this, SLOT(aboutAct()));
aboutQtAction = new QAction(tr("About &Qt"), this);
aboutQtAction->setShortcut(tr("Ctrl+Q"));
connect(aboutQtAction, SIGNAL(triggered()),
qApp, SLOT(aboutQt()));
//! [10]
}
//! [10]
//! [11]
void MainWindow::createMenus()
{
fileMenu = menuBar()->addMenu(tr("&File"));
fileMenu->addAction(loadAction);
fileMenu->addAction(saveAction);
fileMenu->addSeparator();
fileMenu->addAction(exitAction);
brushMenu = menuBar()->addMenu(tr("&Brush"));
brushMenu->addAction(brushColorAction);
tabletMenu = menuBar()->addMenu(tr("&Tablet"));
lineWidthMenu = tabletMenu->addMenu(tr("&Line Width"));
lineWidthMenu->addAction(lineWidthPressureAction);
lineWidthMenu->addAction(lineWidthTiltAction);
lineWidthMenu->addAction(lineWidthFixedAction);
alphaChannelMenu = tabletMenu->addMenu(tr("&Alpha Channel"));
alphaChannelMenu->addAction(alphaChannelPressureAction);
alphaChannelMenu->addAction(alphaChannelTiltAction);
alphaChannelMenu->addAction(noAlphaChannelAction);
colorSaturationMenu = tabletMenu->addMenu(tr("&Color Saturation"));
colorSaturationMenu->addAction(colorSaturationVTiltAction);
colorSaturationMenu->addAction(colorSaturationHTiltAction);
colorSaturationMenu->addAction(noColorSaturationAction);
helpMenu = menuBar()->addMenu("&Help");
helpMenu->addAction(aboutAction);
helpMenu->addAction(aboutQtAction);
}
//! [11]
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