/****************************************************************************

**

** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies).

** All rights reserved.

** Contact: Nokia Corporation (qt-info@nokia.com)

**

** This file is part of the examples of the Qt Toolkit.

**

**

**

** $QT_END_LICENSE$

**

****************************************************************************/

#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->setShortcuts(QKeySequence::Quit);

    connect(exitAction, SIGNAL(triggered()),

            this, SLOT(close()));

    loadAction = new QAction(tr("&Open..."), this);

    loadAction->setShortcuts(QKeySequence::Open);

    connect(loadAction, SIGNAL(triggered()),

            this, SLOT(loadAct()));

    saveAction = new QAction(tr("&Save As..."), this);

    saveAction->setShortcuts(QKeySequence::SaveAs);

    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]