diff options
author | Gabriel de Dietrich <gabriel.dietrich-de@nokia.com> | 2012-08-17 13:23:19 +0200 |
---|---|---|
committer | Qt by Nokia <qt-info@nokia.com> | 2012-08-20 12:20:55 +0200 |
commit | 806dda08d685bc5f9ed71dfe8b61f21848d48066 (patch) | |
tree | a63533a1c4a335ae17adc105abb0ae4e62e2f26e /examples/widgets/widgets/icons/mainwindow.cpp | |
parent | 9f942014e31842b512c3198de035d041c59f54a9 (diff) |
Moving .qdoc files under examples/widgets/doc
Updated those .qdoc files to refer to the new relative examples
emplacement. Images and snippets to be moved later.
Also grouped all widgets related examples under widgets.
Change-Id: Ib29696e2d8948524537f53e8dda88f9ee26a597f
Reviewed-by: J-P Nurmi <j-p.nurmi@nokia.com>
Diffstat (limited to 'examples/widgets/widgets/icons/mainwindow.cpp')
-rw-r--r-- | examples/widgets/widgets/icons/mainwindow.cpp | 442 |
1 files changed, 442 insertions, 0 deletions
diff --git a/examples/widgets/widgets/icons/mainwindow.cpp b/examples/widgets/widgets/icons/mainwindow.cpp new file mode 100644 index 0000000000..00f5a21854 --- /dev/null +++ b/examples/widgets/widgets/icons/mainwindow.cpp @@ -0,0 +1,442 @@ +/**************************************************************************** +** +** Copyright (C) 2012 Nokia Corporation and/or its subsidiary(-ies). +** Contact: http://www.qt-project.org/ +** +** This file is part of the examples of the Qt Toolkit. +** +** $QT_BEGIN_LICENSE:BSD$ +** You may use this file under the terms of the BSD license as follows: +** +** "Redistribution and use in source and binary forms, with or without +** modification, are permitted provided that the following conditions are +** met: +** * Redistributions of source code must retain the above copyright +** notice, this list of conditions and the following disclaimer. +** * Redistributions in binary form must reproduce the above copyright +** notice, this list of conditions and the following disclaimer in +** the documentation and/or other materials provided with the +** distribution. +** * Neither the name of Nokia Corporation and its Subsidiary(-ies) nor +** the names of its contributors may be used to endorse or promote +** products derived from this software without specific prior written +** permission. +** +** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS +** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT +** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR +** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT +** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, +** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY +** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT +** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE +** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE." +** +** $QT_END_LICENSE$ +** +****************************************************************************/ + +#include <QtWidgets> + +#include "iconpreviewarea.h" +#include "iconsizespinbox.h" +#include "imagedelegate.h" +#include "mainwindow.h" + +//! [0] +MainWindow::MainWindow() +{ + centralWidget = new QWidget; + setCentralWidget(centralWidget); + + createPreviewGroupBox(); + createImagesGroupBox(); + createIconSizeGroupBox(); + + createActions(); + createMenus(); + createContextMenu(); + + QGridLayout *mainLayout = new QGridLayout; + mainLayout->addWidget(previewGroupBox, 0, 0, 1, 2); + mainLayout->addWidget(imagesGroupBox, 1, 0); + mainLayout->addWidget(iconSizeGroupBox, 1, 1); + centralWidget->setLayout(mainLayout); + + setWindowTitle(tr("Icons")); + checkCurrentStyle(); + otherRadioButton->click(); + + resize(minimumSizeHint()); +} +//! [0] + +//! [1] +void MainWindow::about() +{ + QMessageBox::about(this, tr("About Icons"), + tr("The <b>Icons</b> example illustrates how Qt renders an icon in " + "different modes (active, normal, disabled, and selected) and " + "states (on and off) based on a set of images.")); +} +//! [1] + +//! [2] +void MainWindow::changeStyle(bool checked) +{ + if (!checked) + return; + + QAction *action = qobject_cast<QAction *>(sender()); +//! [2] //! [3] + QStyle *style = QStyleFactory::create(action->data().toString()); +//! [3] //! [4] + Q_ASSERT(style); + QApplication::setStyle(style); + + smallRadioButton->setText(tr("Small (%1 x %1)") + .arg(style->pixelMetric(QStyle::PM_SmallIconSize))); + largeRadioButton->setText(tr("Large (%1 x %1)") + .arg(style->pixelMetric(QStyle::PM_LargeIconSize))); + toolBarRadioButton->setText(tr("Toolbars (%1 x %1)") + .arg(style->pixelMetric(QStyle::PM_ToolBarIconSize))); + listViewRadioButton->setText(tr("List views (%1 x %1)") + .arg(style->pixelMetric(QStyle::PM_ListViewIconSize))); + iconViewRadioButton->setText(tr("Icon views (%1 x %1)") + .arg(style->pixelMetric(QStyle::PM_IconViewIconSize))); + tabBarRadioButton->setText(tr("Tab bars (%1 x %1)") + .arg(style->pixelMetric(QStyle::PM_TabBarIconSize))); + + changeSize(); +} +//! [4] + +//! [5] +void MainWindow::changeSize(bool checked) +{ + if (!checked) + return; + + int extent; + + if (otherRadioButton->isChecked()) { + extent = otherSpinBox->value(); + } else { + QStyle::PixelMetric metric; + + if (smallRadioButton->isChecked()) { + metric = QStyle::PM_SmallIconSize; + } else if (largeRadioButton->isChecked()) { + metric = QStyle::PM_LargeIconSize; + } else if (toolBarRadioButton->isChecked()) { + metric = QStyle::PM_ToolBarIconSize; + } else if (listViewRadioButton->isChecked()) { + metric = QStyle::PM_ListViewIconSize; + } else if (iconViewRadioButton->isChecked()) { + metric = QStyle::PM_IconViewIconSize; + } else { + metric = QStyle::PM_TabBarIconSize; + } + extent = QApplication::style()->pixelMetric(metric); + } + previewArea->setSize(QSize(extent, extent)); + otherSpinBox->setEnabled(otherRadioButton->isChecked()); +} +//! [5] + +//! [6] +void MainWindow::changeIcon() +{ + QIcon icon; + + for (int row = 0; row < imagesTable->rowCount(); ++row) { + QTableWidgetItem *item0 = imagesTable->item(row, 0); + QTableWidgetItem *item1 = imagesTable->item(row, 1); + QTableWidgetItem *item2 = imagesTable->item(row, 2); + + if (item0->checkState() == Qt::Checked) { + QIcon::Mode mode; + if (item1->text() == tr("Normal")) { + mode = QIcon::Normal; + } else if (item1->text() == tr("Active")) { + mode = QIcon::Active; + } else if (item1->text() == tr("Disabled")) { + mode = QIcon::Disabled; + } else { + mode = QIcon::Selected; + } + + QIcon::State state; + if (item2->text() == tr("On")) { + state = QIcon::On; + } else { + state = QIcon::Off; +//! [6] //! [7] + } +//! [7] + +//! [8] + QString fileName = item0->data(Qt::UserRole).toString(); + QImage image(fileName); + if (!image.isNull()) + icon.addPixmap(QPixmap::fromImage(image), mode, state); +//! [8] //! [9] + } +//! [9] //! [10] + } +//! [10] + +//! [11] + previewArea->setIcon(icon); +} +//! [11] + +//! [12] +void MainWindow::addImages() +{ + QStringList fileNames = QFileDialog::getOpenFileNames(this, + tr("Open Images"), "", + tr("Images (*.png *.xpm *.jpg);;" + "All Files (*)")); + if (!fileNames.isEmpty()) { + foreach (QString fileName, fileNames) { + int row = imagesTable->rowCount(); + imagesTable->setRowCount(row + 1); +//! [12] + +//! [13] + QString imageName = QFileInfo(fileName).baseName(); +//! [13] //! [14] + QTableWidgetItem *item0 = new QTableWidgetItem(imageName); + item0->setData(Qt::UserRole, fileName); + item0->setFlags(item0->flags() & ~Qt::ItemIsEditable); +//! [14] + +//! [15] + QTableWidgetItem *item1 = new QTableWidgetItem(tr("Normal")); +//! [15] //! [16] + QTableWidgetItem *item2 = new QTableWidgetItem(tr("Off")); + + if (guessModeStateAct->isChecked()) { + if (fileName.contains("_act")) { + item1->setText(tr("Active")); + } else if (fileName.contains("_dis")) { + item1->setText(tr("Disabled")); + } else if (fileName.contains("_sel")) { + item1->setText(tr("Selected")); + } + + if (fileName.contains("_on")) + item2->setText(tr("On")); +//! [16] //! [17] + } +//! [17] + +//! [18] + imagesTable->setItem(row, 0, item0); +//! [18] //! [19] + imagesTable->setItem(row, 1, item1); + imagesTable->setItem(row, 2, item2); + imagesTable->openPersistentEditor(item1); + imagesTable->openPersistentEditor(item2); + + item0->setCheckState(Qt::Checked); + } + } +} +//! [19] + +//! [20] +void MainWindow::removeAllImages() +{ + imagesTable->setRowCount(0); + changeIcon(); +} +//! [20] + +void MainWindow::createPreviewGroupBox() +{ + previewGroupBox = new QGroupBox(tr("Preview")); + + previewArea = new IconPreviewArea; + + QVBoxLayout *layout = new QVBoxLayout; + layout->addWidget(previewArea); + previewGroupBox->setLayout(layout); +} + +//! [21] +void MainWindow::createImagesGroupBox() +{ + imagesGroupBox = new QGroupBox(tr("Images")); + + imagesTable = new QTableWidget; + imagesTable->setSelectionMode(QAbstractItemView::NoSelection); + imagesTable->setItemDelegate(new ImageDelegate(this)); +//! [21] + +//! [22] + QStringList labels; +//! [22] //! [23] + labels << tr("Image") << tr("Mode") << tr("State"); + + imagesTable->horizontalHeader()->setDefaultSectionSize(90); + imagesTable->setColumnCount(3); + imagesTable->setHorizontalHeaderLabels(labels); + imagesTable->horizontalHeader()->setSectionResizeMode(0, QHeaderView::Stretch); + imagesTable->horizontalHeader()->setSectionResizeMode(1, QHeaderView::Fixed); + imagesTable->horizontalHeader()->setSectionResizeMode(2, QHeaderView::Fixed); + imagesTable->verticalHeader()->hide(); +//! [23] + +//! [24] + connect(imagesTable, SIGNAL(itemChanged(QTableWidgetItem*)), +//! [24] //! [25] + this, SLOT(changeIcon())); + + QVBoxLayout *layout = new QVBoxLayout; + layout->addWidget(imagesTable); + imagesGroupBox->setLayout(layout); +} +//! [25] + +//! [26] +void MainWindow::createIconSizeGroupBox() +{ + iconSizeGroupBox = new QGroupBox(tr("Icon Size")); + + smallRadioButton = new QRadioButton; + largeRadioButton = new QRadioButton; + toolBarRadioButton = new QRadioButton; + listViewRadioButton = new QRadioButton; + iconViewRadioButton = new QRadioButton; + tabBarRadioButton = new QRadioButton; + otherRadioButton = new QRadioButton(tr("Other:")); + + otherSpinBox = new IconSizeSpinBox; + otherSpinBox->setRange(8, 128); + otherSpinBox->setValue(64); +//! [26] + +//! [27] + connect(smallRadioButton, SIGNAL(toggled(bool)), + this, SLOT(changeSize(bool))); + connect(largeRadioButton, SIGNAL(toggled(bool)), + this, SLOT(changeSize(bool))); + connect(toolBarRadioButton, SIGNAL(toggled(bool)), + this, SLOT(changeSize(bool))); + connect(listViewRadioButton, SIGNAL(toggled(bool)), + this, SLOT(changeSize(bool))); + connect(iconViewRadioButton, SIGNAL(toggled(bool)), + this, SLOT(changeSize(bool))); + connect(tabBarRadioButton, SIGNAL(toggled(bool)), + this, SLOT(changeSize(bool))); + connect(otherRadioButton, SIGNAL(toggled(bool)), + this, SLOT(changeSize(bool))); + connect(otherSpinBox, SIGNAL(valueChanged(int)), this, SLOT(changeSize())); + + QHBoxLayout *otherSizeLayout = new QHBoxLayout; + otherSizeLayout->addWidget(otherRadioButton); + otherSizeLayout->addWidget(otherSpinBox); + otherSizeLayout->addStretch(); + + QGridLayout *layout = new QGridLayout; + layout->addWidget(smallRadioButton, 0, 0); + layout->addWidget(largeRadioButton, 1, 0); + layout->addWidget(toolBarRadioButton, 2, 0); + layout->addWidget(listViewRadioButton, 0, 1); + layout->addWidget(iconViewRadioButton, 1, 1); + layout->addWidget(tabBarRadioButton, 2, 1); + layout->addLayout(otherSizeLayout, 3, 0, 1, 2); + layout->setRowStretch(4, 1); + iconSizeGroupBox->setLayout(layout); +} +//! [27] + +//! [28] +void MainWindow::createActions() +{ + addImagesAct = new QAction(tr("&Add Images..."), this); + addImagesAct->setShortcut(tr("Ctrl+A")); + connect(addImagesAct, SIGNAL(triggered()), this, SLOT(addImages())); + + removeAllImagesAct = new QAction(tr("&Remove All Images"), this); + removeAllImagesAct->setShortcut(tr("Ctrl+R")); + connect(removeAllImagesAct, SIGNAL(triggered()), + this, SLOT(removeAllImages())); + + exitAct = new QAction(tr("&Quit"), this); + exitAct->setShortcuts(QKeySequence::Quit); + connect(exitAct, SIGNAL(triggered()), this, SLOT(close())); + + styleActionGroup = new QActionGroup(this); + foreach (QString styleName, QStyleFactory::keys()) { + QAction *action = new QAction(styleActionGroup); + action->setText(tr("%1 Style").arg(styleName)); + action->setData(styleName); + action->setCheckable(true); + connect(action, SIGNAL(triggered(bool)), this, SLOT(changeStyle(bool))); + } + + guessModeStateAct = new QAction(tr("&Guess Image Mode/State"), this); + guessModeStateAct->setCheckable(true); + guessModeStateAct->setChecked(true); + + aboutAct = new QAction(tr("&About"), this); + connect(aboutAct, SIGNAL(triggered()), this, SLOT(about())); + + aboutQtAct = new QAction(tr("About &Qt"), this); + connect(aboutQtAct, SIGNAL(triggered()), qApp, SLOT(aboutQt())); +} +//! [28] + +//! [29] +void MainWindow::createMenus() +{ + fileMenu = menuBar()->addMenu(tr("&File")); + fileMenu->addAction(addImagesAct); + fileMenu->addAction(removeAllImagesAct); + fileMenu->addSeparator(); + fileMenu->addAction(exitAct); + + viewMenu = menuBar()->addMenu(tr("&View")); + foreach (QAction *action, styleActionGroup->actions()) + viewMenu->addAction(action); + viewMenu->addSeparator(); + viewMenu->addAction(guessModeStateAct); + + menuBar()->addSeparator(); + + helpMenu = menuBar()->addMenu(tr("&Help")); + helpMenu->addAction(aboutAct); + helpMenu->addAction(aboutQtAct); +} +//! [29] + +//! [30] +void MainWindow::createContextMenu() +{ + imagesTable->setContextMenuPolicy(Qt::ActionsContextMenu); + imagesTable->addAction(addImagesAct); + imagesTable->addAction(removeAllImagesAct); +} +//! [30] + +//! [31] +void MainWindow::checkCurrentStyle() +{ + foreach (QAction *action, styleActionGroup->actions()) { + QString styleName = action->data().toString(); + QStyle *candidate = QStyleFactory::create(styleName); + Q_ASSERT(candidate); + if (candidate->metaObject()->className() + == QApplication::style()->metaObject()->className()) { + action->trigger(); + return; + } + delete candidate; + } +} +//! [31] |