5635823e17
As in the past, to avoid rewriting various autotests that contain line-number information, an extra blank line has been inserted at the end of the license text to ensure that this commit does not change the total number of lines in the license header. Change-Id: I311e001373776812699d6efc045b5f742890c689 Reviewed-by: Rohan McGovern <rohan.mcgovern@nokia.com>
443 lines
14 KiB
C++
443 lines
14 KiB
C++
/****************************************************************************
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**
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** Copyright (C) 2012 Nokia Corporation and/or its subsidiary(-ies).
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** Contact: http://www.qt-project.org/
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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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**
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** $QT_END_LICENSE$
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**
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****************************************************************************/
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#include <QtWidgets>
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#include "iconpreviewarea.h"
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#include "iconsizespinbox.h"
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#include "imagedelegate.h"
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#include "mainwindow.h"
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//! [0]
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MainWindow::MainWindow()
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{
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centralWidget = new QWidget;
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setCentralWidget(centralWidget);
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createPreviewGroupBox();
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createImagesGroupBox();
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createIconSizeGroupBox();
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createActions();
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createMenus();
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createContextMenu();
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QGridLayout *mainLayout = new QGridLayout;
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mainLayout->addWidget(previewGroupBox, 0, 0, 1, 2);
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mainLayout->addWidget(imagesGroupBox, 1, 0);
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mainLayout->addWidget(iconSizeGroupBox, 1, 1);
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centralWidget->setLayout(mainLayout);
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setWindowTitle(tr("Icons"));
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checkCurrentStyle();
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otherRadioButton->click();
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resize(minimumSizeHint());
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}
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//! [0]
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//! [1]
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void MainWindow::about()
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{
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QMessageBox::about(this, tr("About Icons"),
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tr("The <b>Icons</b> example illustrates how Qt renders an icon in "
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"different modes (active, normal, disabled, and selected) and "
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"states (on and off) based on a set of images."));
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}
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//! [1]
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//! [2]
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void MainWindow::changeStyle(bool checked)
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{
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if (!checked)
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return;
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QAction *action = qobject_cast<QAction *>(sender());
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//! [2] //! [3]
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QStyle *style = QStyleFactory::create(action->data().toString());
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//! [3] //! [4]
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Q_ASSERT(style);
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QApplication::setStyle(style);
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smallRadioButton->setText(tr("Small (%1 x %1)")
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.arg(style->pixelMetric(QStyle::PM_SmallIconSize)));
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largeRadioButton->setText(tr("Large (%1 x %1)")
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.arg(style->pixelMetric(QStyle::PM_LargeIconSize)));
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toolBarRadioButton->setText(tr("Toolbars (%1 x %1)")
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.arg(style->pixelMetric(QStyle::PM_ToolBarIconSize)));
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listViewRadioButton->setText(tr("List views (%1 x %1)")
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.arg(style->pixelMetric(QStyle::PM_ListViewIconSize)));
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iconViewRadioButton->setText(tr("Icon views (%1 x %1)")
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.arg(style->pixelMetric(QStyle::PM_IconViewIconSize)));
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tabBarRadioButton->setText(tr("Tab bars (%1 x %1)")
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.arg(style->pixelMetric(QStyle::PM_TabBarIconSize)));
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changeSize();
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}
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//! [4]
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//! [5]
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void MainWindow::changeSize(bool checked)
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{
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if (!checked)
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return;
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int extent;
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if (otherRadioButton->isChecked()) {
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extent = otherSpinBox->value();
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} else {
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QStyle::PixelMetric metric;
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if (smallRadioButton->isChecked()) {
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metric = QStyle::PM_SmallIconSize;
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} else if (largeRadioButton->isChecked()) {
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metric = QStyle::PM_LargeIconSize;
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} else if (toolBarRadioButton->isChecked()) {
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metric = QStyle::PM_ToolBarIconSize;
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} else if (listViewRadioButton->isChecked()) {
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metric = QStyle::PM_ListViewIconSize;
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} else if (iconViewRadioButton->isChecked()) {
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metric = QStyle::PM_IconViewIconSize;
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} else {
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metric = QStyle::PM_TabBarIconSize;
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}
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extent = QApplication::style()->pixelMetric(metric);
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}
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previewArea->setSize(QSize(extent, extent));
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otherSpinBox->setEnabled(otherRadioButton->isChecked());
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}
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//! [5]
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//! [6]
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void MainWindow::changeIcon()
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{
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QIcon icon;
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for (int row = 0; row < imagesTable->rowCount(); ++row) {
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QTableWidgetItem *item0 = imagesTable->item(row, 0);
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QTableWidgetItem *item1 = imagesTable->item(row, 1);
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QTableWidgetItem *item2 = imagesTable->item(row, 2);
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if (item0->checkState() == Qt::Checked) {
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QIcon::Mode mode;
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if (item1->text() == tr("Normal")) {
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mode = QIcon::Normal;
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} else if (item1->text() == tr("Active")) {
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mode = QIcon::Active;
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} else if (item1->text() == tr("Disabled")) {
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mode = QIcon::Disabled;
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} else {
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mode = QIcon::Selected;
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}
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QIcon::State state;
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if (item2->text() == tr("On")) {
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state = QIcon::On;
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} else {
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state = QIcon::Off;
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//! [6] //! [7]
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}
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//! [7]
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//! [8]
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QString fileName = item0->data(Qt::UserRole).toString();
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QImage image(fileName);
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if (!image.isNull())
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icon.addPixmap(QPixmap::fromImage(image), mode, state);
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//! [8] //! [9]
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}
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//! [9] //! [10]
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}
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//! [10]
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//! [11]
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previewArea->setIcon(icon);
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}
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//! [11]
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//! [12]
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void MainWindow::addImages()
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{
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QStringList fileNames = QFileDialog::getOpenFileNames(this,
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tr("Open Images"), "",
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tr("Images (*.png *.xpm *.jpg);;"
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"All Files (*)"));
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if (!fileNames.isEmpty()) {
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foreach (QString fileName, fileNames) {
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int row = imagesTable->rowCount();
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imagesTable->setRowCount(row + 1);
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//! [12]
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//! [13]
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QString imageName = QFileInfo(fileName).baseName();
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//! [13] //! [14]
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QTableWidgetItem *item0 = new QTableWidgetItem(imageName);
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item0->setData(Qt::UserRole, fileName);
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item0->setFlags(item0->flags() & ~Qt::ItemIsEditable);
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//! [14]
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//! [15]
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QTableWidgetItem *item1 = new QTableWidgetItem(tr("Normal"));
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//! [15] //! [16]
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QTableWidgetItem *item2 = new QTableWidgetItem(tr("Off"));
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if (guessModeStateAct->isChecked()) {
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if (fileName.contains("_act")) {
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item1->setText(tr("Active"));
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} else if (fileName.contains("_dis")) {
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item1->setText(tr("Disabled"));
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} else if (fileName.contains("_sel")) {
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item1->setText(tr("Selected"));
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}
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if (fileName.contains("_on"))
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item2->setText(tr("On"));
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//! [16] //! [17]
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}
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//! [17]
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//! [18]
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imagesTable->setItem(row, 0, item0);
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//! [18] //! [19]
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imagesTable->setItem(row, 1, item1);
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imagesTable->setItem(row, 2, item2);
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imagesTable->openPersistentEditor(item1);
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imagesTable->openPersistentEditor(item2);
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item0->setCheckState(Qt::Checked);
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}
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}
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}
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//! [19]
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//! [20]
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void MainWindow::removeAllImages()
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{
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imagesTable->setRowCount(0);
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changeIcon();
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}
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//! [20]
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void MainWindow::createPreviewGroupBox()
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{
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previewGroupBox = new QGroupBox(tr("Preview"));
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previewArea = new IconPreviewArea;
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QVBoxLayout *layout = new QVBoxLayout;
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layout->addWidget(previewArea);
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previewGroupBox->setLayout(layout);
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}
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//! [21]
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void MainWindow::createImagesGroupBox()
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{
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imagesGroupBox = new QGroupBox(tr("Images"));
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imagesTable = new QTableWidget;
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imagesTable->setSelectionMode(QAbstractItemView::NoSelection);
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imagesTable->setItemDelegate(new ImageDelegate(this));
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//! [21]
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//! [22]
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QStringList labels;
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//! [22] //! [23]
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labels << tr("Image") << tr("Mode") << tr("State");
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imagesTable->horizontalHeader()->setDefaultSectionSize(90);
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imagesTable->setColumnCount(3);
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imagesTable->setHorizontalHeaderLabels(labels);
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imagesTable->horizontalHeader()->setResizeMode(0, QHeaderView::Stretch);
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imagesTable->horizontalHeader()->setResizeMode(1, QHeaderView::Fixed);
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imagesTable->horizontalHeader()->setResizeMode(2, QHeaderView::Fixed);
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imagesTable->verticalHeader()->hide();
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//! [23]
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//! [24]
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connect(imagesTable, SIGNAL(itemChanged(QTableWidgetItem*)),
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//! [24] //! [25]
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this, SLOT(changeIcon()));
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QVBoxLayout *layout = new QVBoxLayout;
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layout->addWidget(imagesTable);
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imagesGroupBox->setLayout(layout);
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}
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//! [25]
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//! [26]
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void MainWindow::createIconSizeGroupBox()
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{
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iconSizeGroupBox = new QGroupBox(tr("Icon Size"));
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smallRadioButton = new QRadioButton;
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largeRadioButton = new QRadioButton;
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toolBarRadioButton = new QRadioButton;
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listViewRadioButton = new QRadioButton;
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iconViewRadioButton = new QRadioButton;
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tabBarRadioButton = new QRadioButton;
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otherRadioButton = new QRadioButton(tr("Other:"));
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otherSpinBox = new IconSizeSpinBox;
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otherSpinBox->setRange(8, 128);
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otherSpinBox->setValue(64);
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//! [26]
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//! [27]
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connect(smallRadioButton, SIGNAL(toggled(bool)),
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this, SLOT(changeSize(bool)));
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connect(largeRadioButton, SIGNAL(toggled(bool)),
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this, SLOT(changeSize(bool)));
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connect(toolBarRadioButton, SIGNAL(toggled(bool)),
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this, SLOT(changeSize(bool)));
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connect(listViewRadioButton, SIGNAL(toggled(bool)),
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this, SLOT(changeSize(bool)));
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connect(iconViewRadioButton, SIGNAL(toggled(bool)),
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this, SLOT(changeSize(bool)));
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connect(tabBarRadioButton, SIGNAL(toggled(bool)),
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this, SLOT(changeSize(bool)));
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connect(otherRadioButton, SIGNAL(toggled(bool)),
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this, SLOT(changeSize(bool)));
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connect(otherSpinBox, SIGNAL(valueChanged(int)), this, SLOT(changeSize()));
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QHBoxLayout *otherSizeLayout = new QHBoxLayout;
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otherSizeLayout->addWidget(otherRadioButton);
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otherSizeLayout->addWidget(otherSpinBox);
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otherSizeLayout->addStretch();
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QGridLayout *layout = new QGridLayout;
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layout->addWidget(smallRadioButton, 0, 0);
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layout->addWidget(largeRadioButton, 1, 0);
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layout->addWidget(toolBarRadioButton, 2, 0);
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layout->addWidget(listViewRadioButton, 0, 1);
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layout->addWidget(iconViewRadioButton, 1, 1);
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layout->addWidget(tabBarRadioButton, 2, 1);
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layout->addLayout(otherSizeLayout, 3, 0, 1, 2);
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layout->setRowStretch(4, 1);
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iconSizeGroupBox->setLayout(layout);
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}
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//! [27]
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//! [28]
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void MainWindow::createActions()
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{
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addImagesAct = new QAction(tr("&Add Images..."), this);
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addImagesAct->setShortcut(tr("Ctrl+A"));
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connect(addImagesAct, SIGNAL(triggered()), this, SLOT(addImages()));
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removeAllImagesAct = new QAction(tr("&Remove All Images"), this);
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removeAllImagesAct->setShortcut(tr("Ctrl+R"));
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connect(removeAllImagesAct, SIGNAL(triggered()),
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this, SLOT(removeAllImages()));
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exitAct = new QAction(tr("&Quit"), this);
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exitAct->setShortcuts(QKeySequence::Quit);
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connect(exitAct, SIGNAL(triggered()), this, SLOT(close()));
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styleActionGroup = new QActionGroup(this);
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foreach (QString styleName, QStyleFactory::keys()) {
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QAction *action = new QAction(styleActionGroup);
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action->setText(tr("%1 Style").arg(styleName));
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action->setData(styleName);
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action->setCheckable(true);
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connect(action, SIGNAL(triggered(bool)), this, SLOT(changeStyle(bool)));
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}
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guessModeStateAct = new QAction(tr("&Guess Image Mode/State"), this);
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guessModeStateAct->setCheckable(true);
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guessModeStateAct->setChecked(true);
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aboutAct = new QAction(tr("&About"), this);
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connect(aboutAct, SIGNAL(triggered()), this, SLOT(about()));
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aboutQtAct = new QAction(tr("About &Qt"), this);
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connect(aboutQtAct, SIGNAL(triggered()), qApp, SLOT(aboutQt()));
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}
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//! [28]
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//! [29]
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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(addImagesAct);
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fileMenu->addAction(removeAllImagesAct);
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fileMenu->addSeparator();
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fileMenu->addAction(exitAct);
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viewMenu = menuBar()->addMenu(tr("&View"));
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foreach (QAction *action, styleActionGroup->actions())
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viewMenu->addAction(action);
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viewMenu->addSeparator();
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viewMenu->addAction(guessModeStateAct);
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menuBar()->addSeparator();
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helpMenu = menuBar()->addMenu(tr("&Help"));
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helpMenu->addAction(aboutAct);
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helpMenu->addAction(aboutQtAct);
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}
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//! [29]
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//! [30]
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void MainWindow::createContextMenu()
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{
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imagesTable->setContextMenuPolicy(Qt::ActionsContextMenu);
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imagesTable->addAction(addImagesAct);
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imagesTable->addAction(removeAllImagesAct);
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}
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//! [30]
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//! [31]
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void MainWindow::checkCurrentStyle()
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{
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foreach (QAction *action, styleActionGroup->actions()) {
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QString styleName = action->data().toString();
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QStyle *candidate = QStyleFactory::create(styleName);
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Q_ASSERT(candidate);
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if (candidate->metaObject()->className()
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== QApplication::style()->metaObject()->className()) {
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action->trigger();
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return;
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}
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delete candidate;
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}
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}
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//! [31]
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