275 lines
9.6 KiB
C++
275 lines
9.6 KiB
C++
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/****************************************************************************
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**
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** Copyright (C) 2011 Nokia Corporation and/or its subsidiary(-ies).
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** All rights reserved.
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** Contact: Nokia Corporation (qt-info@nokia.com)
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**
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** This file is part of the examples of the Qt Toolkit.
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**
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** $QT_BEGIN_LICENSE:BSD$
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** You may use this file under the terms of the BSD license as follows:
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**
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** "Redistribution and use in source and binary forms, with or without
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** modification, are permitted provided that the following conditions are
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** met:
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** * Redistributions of source code must retain the above copyright
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** notice, this list of conditions and the following disclaimer.
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** * Redistributions in binary form must reproduce the above copyright
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** notice, this list of conditions and the following disclaimer in
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** the documentation and/or other materials provided with the
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** distribution.
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** * Neither the name of Nokia Corporation and its Subsidiary(-ies) nor
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** the names of its contributors may be used to endorse or promote
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** products derived from this software without specific prior written
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** permission.
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**
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** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE."
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** $QT_END_LICENSE$
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**
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****************************************************************************/
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#include <QtGui>
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#include "mainwindow.h"
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#include "tabletcanvas.h"
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//! [0]
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MainWindow::MainWindow(TabletCanvas *canvas)
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{
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myCanvas = canvas;
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createActions();
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createMenus();
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myCanvas->setColor(Qt::red);
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myCanvas->setLineWidthType(TabletCanvas::LineWidthPressure);
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myCanvas->setAlphaChannelType(TabletCanvas::NoAlpha);
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myCanvas->setColorSaturationType(TabletCanvas::NoSaturation);
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setWindowTitle(tr("Tablet Example"));
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setCentralWidget(myCanvas);
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}
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//! [0]
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//! [1]
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void MainWindow::brushColorAct()
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{
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QColor color = QColorDialog::getColor(myCanvas->color());
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if (color.isValid())
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myCanvas->setColor(color);
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}
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//! [1]
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//! [2]
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void MainWindow::alphaActionTriggered(QAction *action)
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{
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if (action == alphaChannelPressureAction) {
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myCanvas->setAlphaChannelType(TabletCanvas::AlphaPressure);
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} else if (action == alphaChannelTiltAction) {
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myCanvas->setAlphaChannelType(TabletCanvas::AlphaTilt);
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} else {
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myCanvas->setAlphaChannelType(TabletCanvas::NoAlpha);
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}
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}
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//! [2]
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//! [3]
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void MainWindow::lineWidthActionTriggered(QAction *action)
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{
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if (action == lineWidthPressureAction) {
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myCanvas->setLineWidthType(TabletCanvas::LineWidthPressure);
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} else if (action == lineWidthTiltAction) {
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myCanvas->setLineWidthType(TabletCanvas::LineWidthTilt);
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} else {
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myCanvas->setLineWidthType(TabletCanvas::NoLineWidth);
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}
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}
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//! [3]
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//! [4]
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void MainWindow::saturationActionTriggered(QAction *action)
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{
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if (action == colorSaturationVTiltAction) {
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myCanvas->setColorSaturationType(TabletCanvas::SaturationVTilt);
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} else if (action == colorSaturationHTiltAction) {
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myCanvas->setColorSaturationType(TabletCanvas::SaturationHTilt);
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} else if (action == colorSaturationPressureAction) {
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myCanvas->setColorSaturationType(TabletCanvas::SaturationPressure);
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} else {
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myCanvas->setColorSaturationType(TabletCanvas::NoSaturation);
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}
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}
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//! [4]
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//! [5]
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void MainWindow::saveAct()
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{
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QString path = QDir::currentPath() + "/untitled.png";
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QString fileName = QFileDialog::getSaveFileName(this, tr("Save Picture"),
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path);
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if (!myCanvas->saveImage(fileName))
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QMessageBox::information(this, "Error Saving Picture",
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"Could not save the image");
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}
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//! [5]
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//! [6]
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void MainWindow::loadAct()
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{
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QString fileName = QFileDialog::getOpenFileName(this, tr("Open Picture"),
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QDir::currentPath());
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if (!myCanvas->loadImage(fileName))
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QMessageBox::information(this, "Error Opening Picture",
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"Could not open picture");
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}
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//! [6]
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//! [7]
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void MainWindow::aboutAct()
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{
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QMessageBox::about(this, tr("About Tablet Example"),
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tr("This example shows use of a Wacom tablet in Qt"));
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}
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//! [7]
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//! [8]
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void MainWindow::createActions()
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{
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//! [8]
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brushColorAction = new QAction(tr("&Brush Color..."), this);
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brushColorAction->setShortcut(tr("Ctrl+C"));
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connect(brushColorAction, SIGNAL(triggered()),
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this, SLOT(brushColorAct()));
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//! [9]
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alphaChannelPressureAction = new QAction(tr("&Pressure"), this);
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alphaChannelPressureAction->setCheckable(true);
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alphaChannelTiltAction = new QAction(tr("&Tilt"), this);
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alphaChannelTiltAction->setCheckable(true);
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noAlphaChannelAction = new QAction(tr("No Alpha Channel"), this);
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noAlphaChannelAction->setCheckable(true);
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noAlphaChannelAction->setChecked(true);
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alphaChannelGroup = new QActionGroup(this);
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alphaChannelGroup->addAction(alphaChannelPressureAction);
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alphaChannelGroup->addAction(alphaChannelTiltAction);
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alphaChannelGroup->addAction(noAlphaChannelAction);
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connect(alphaChannelGroup, SIGNAL(triggered(QAction*)),
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this, SLOT(alphaActionTriggered(QAction*)));
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//! [9]
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colorSaturationVTiltAction = new QAction(tr("&Vertical Tilt"), this);
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colorSaturationVTiltAction->setCheckable(true);
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colorSaturationHTiltAction = new QAction(tr("&Horizontal Tilt"), this);
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colorSaturationHTiltAction->setCheckable(true);
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colorSaturationPressureAction = new QAction(tr("&Pressure"), this);
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colorSaturationPressureAction->setCheckable(true);
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noColorSaturationAction = new QAction(tr("&No Color Saturation"), this);
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noColorSaturationAction->setCheckable(true);
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noColorSaturationAction->setChecked(true);
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colorSaturationGroup = new QActionGroup(this);
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colorSaturationGroup->addAction(colorSaturationVTiltAction);
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colorSaturationGroup->addAction(colorSaturationHTiltAction);
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colorSaturationGroup->addAction(colorSaturationPressureAction);
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colorSaturationGroup->addAction(noColorSaturationAction);
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connect(colorSaturationGroup, SIGNAL(triggered(QAction*)),
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this, SLOT(saturationActionTriggered(QAction*)));
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lineWidthPressureAction = new QAction(tr("&Pressure"), this);
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lineWidthPressureAction->setCheckable(true);
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lineWidthPressureAction->setChecked(true);
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lineWidthTiltAction = new QAction(tr("&Tilt"), this);
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lineWidthTiltAction->setCheckable(true);
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lineWidthFixedAction = new QAction(tr("&Fixed"), this);
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lineWidthFixedAction->setCheckable(true);
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lineWidthGroup = new QActionGroup(this);
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lineWidthGroup->addAction(lineWidthPressureAction);
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lineWidthGroup->addAction(lineWidthTiltAction);
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lineWidthGroup->addAction(lineWidthFixedAction);
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connect(lineWidthGroup, SIGNAL(triggered(QAction*)),
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this, SLOT(lineWidthActionTriggered(QAction*)));
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exitAction = new QAction(tr("E&xit"), this);
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exitAction->setShortcuts(QKeySequence::Quit);
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connect(exitAction, SIGNAL(triggered()),
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this, SLOT(close()));
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loadAction = new QAction(tr("&Open..."), this);
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loadAction->setShortcuts(QKeySequence::Open);
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connect(loadAction, SIGNAL(triggered()),
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this, SLOT(loadAct()));
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saveAction = new QAction(tr("&Save As..."), this);
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saveAction->setShortcuts(QKeySequence::SaveAs);
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connect(saveAction, SIGNAL(triggered()),
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this, SLOT(saveAct()));
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aboutAction = new QAction(tr("A&bout"), this);
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aboutAction->setShortcut(tr("Ctrl+B"));
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connect(aboutAction, SIGNAL(triggered()),
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this, SLOT(aboutAct()));
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aboutQtAction = new QAction(tr("About &Qt"), this);
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aboutQtAction->setShortcut(tr("Ctrl+Q"));
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connect(aboutQtAction, SIGNAL(triggered()),
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qApp, SLOT(aboutQt()));
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//! [10]
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}
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//! [10]
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//! [11]
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void MainWindow::createMenus()
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{
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fileMenu = menuBar()->addMenu(tr("&File"));
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fileMenu->addAction(loadAction);
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fileMenu->addAction(saveAction);
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fileMenu->addSeparator();
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fileMenu->addAction(exitAction);
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brushMenu = menuBar()->addMenu(tr("&Brush"));
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brushMenu->addAction(brushColorAction);
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tabletMenu = menuBar()->addMenu(tr("&Tablet"));
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lineWidthMenu = tabletMenu->addMenu(tr("&Line Width"));
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lineWidthMenu->addAction(lineWidthPressureAction);
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lineWidthMenu->addAction(lineWidthTiltAction);
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lineWidthMenu->addAction(lineWidthFixedAction);
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alphaChannelMenu = tabletMenu->addMenu(tr("&Alpha Channel"));
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alphaChannelMenu->addAction(alphaChannelPressureAction);
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alphaChannelMenu->addAction(alphaChannelTiltAction);
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alphaChannelMenu->addAction(noAlphaChannelAction);
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colorSaturationMenu = tabletMenu->addMenu(tr("&Color Saturation"));
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colorSaturationMenu->addAction(colorSaturationVTiltAction);
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colorSaturationMenu->addAction(colorSaturationHTiltAction);
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colorSaturationMenu->addAction(noColorSaturationAction);
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helpMenu = menuBar()->addMenu("&Help");
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helpMenu->addAction(aboutAction);
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helpMenu->addAction(aboutQtAction);
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}
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//! [11]
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