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-rw-r--r--examples/widgets/widgets/icons/iconpreviewarea.cpp134
-rw-r--r--examples/widgets/widgets/icons/iconpreviewarea.h9
-rw-r--r--examples/widgets/widgets/icons/icons.pro2
-rw-r--r--examples/widgets/widgets/icons/iconsizespinbox.cpp12
-rw-r--r--examples/widgets/widgets/icons/iconsizespinbox.h2
-rw-r--r--examples/widgets/widgets/icons/imagedelegate.cpp18
-rw-r--r--examples/widgets/widgets/icons/imagedelegate.h2
-rw-r--r--examples/widgets/widgets/icons/main.cpp26
-rw-r--r--examples/widgets/widgets/icons/mainwindow.cpp475
-rw-r--r--examples/widgets/widgets/icons/mainwindow.h49
10 files changed, 448 insertions, 281 deletions
diff --git a/examples/widgets/widgets/icons/iconpreviewarea.cpp b/examples/widgets/widgets/icons/iconpreviewarea.cpp
index 0736261a02..090615e64d 100644
--- a/examples/widgets/widgets/icons/iconpreviewarea.cpp
+++ b/examples/widgets/widgets/icons/iconpreviewarea.cpp
@@ -46,33 +46,95 @@
IconPreviewArea::IconPreviewArea(QWidget *parent)
: QWidget(parent)
{
- QGridLayout *mainLayout = new QGridLayout;
- setLayout(mainLayout);
+ QGridLayout *mainLayout = new QGridLayout(this);
- stateLabels[0] = createHeaderLabel(tr("Off"));
- stateLabels[1] = createHeaderLabel(tr("On"));
+ for (int row = 0; row < NumStates; ++row) {
+ stateLabels[row] = createHeaderLabel(IconPreviewArea::iconStateNames().at(row));
+ mainLayout->addWidget(stateLabels[row], row + 1, 0);
+ }
Q_ASSERT(NumStates == 2);
- modeLabels[0] = createHeaderLabel(tr("Normal"));
- modeLabels[1] = createHeaderLabel(tr("Active"));
- modeLabels[2] = createHeaderLabel(tr("Disabled"));
- modeLabels[3] = createHeaderLabel(tr("Selected"));
+ for (int column = 0; column < NumModes; ++column) {
+ modeLabels[column] = createHeaderLabel(IconPreviewArea::iconModeNames().at(column));
+ mainLayout->addWidget(modeLabels[column], 0, column + 1);
+ }
Q_ASSERT(NumModes == 4);
- for (int j = 0; j < NumStates; ++j)
- mainLayout->addWidget(stateLabels[j], j + 1, 0);
-
- for (int i = 0; i < NumModes; ++i) {
- mainLayout->addWidget(modeLabels[i], 0, i + 1);
-
- for (int j = 0; j < NumStates; ++j) {
- pixmapLabels[i][j] = createPixmapLabel();
- mainLayout->addWidget(pixmapLabels[i][j], j + 1, i + 1);
+ for (int column = 0; column < NumModes; ++column) {
+ for (int row = 0; row < NumStates; ++row) {
+ pixmapLabels[column][row] = createPixmapLabel();
+ mainLayout->addWidget(pixmapLabels[column][row], row + 1, column + 1);
}
}
}
//! [0]
+#ifdef Q_COMPILER_INITIALIZER_LISTS
+
+//! [42]
+QVector<QIcon::Mode> IconPreviewArea::iconModes()
+{
+ static const QVector<QIcon::Mode> result = {QIcon::Normal, QIcon::Active, QIcon::Disabled, QIcon::Selected};
+ return result;
+}
+
+QVector<QIcon::State> IconPreviewArea::iconStates()
+{
+ static const QVector<QIcon::State> result = {QIcon::Off, QIcon::On};
+ return result;
+}
+
+QStringList IconPreviewArea::iconModeNames()
+{
+ static const QStringList result = {tr("Normal"), tr("Active"), tr("Disabled"), tr("Selected")};
+ return result;
+}
+
+QStringList IconPreviewArea::iconStateNames()
+{
+ static const QStringList result = {tr("Off"), tr("On")};
+ return result;
+}
+//! [42]
+
+#else // Q_COMPILER_INITIALIZER_LISTS
+
+//! [43]
+QVector<QIcon::Mode> IconPreviewArea::iconModes()
+{
+ static QVector<QIcon::Mode> result;
+ if (result.isEmpty())
+ result << QIcon::Normal << QIcon::Active << QIcon::Disabled << QIcon::Selected;
+ return result;
+}
+//! [43]
+
+QVector<QIcon::State> IconPreviewArea::iconStates()
+{
+ static QVector<QIcon::State> result;
+ if (result.isEmpty())
+ result << QIcon::Off << QIcon::On;
+ return result;
+}
+
+QStringList IconPreviewArea::iconModeNames()
+{
+ static QStringList result;
+ if (result.isEmpty())
+ result << tr("Normal") << tr("Active") << tr("Disabled") << tr("Selected");
+ return result;
+}
+
+QStringList IconPreviewArea::iconStateNames()
+{
+ static QStringList result;
+ if (result.isEmpty())
+ result << tr("Off") << tr("On");
+ return result;
+}
+
+#endif // !Q_COMPILER_INITIALIZER_LISTS
+
//! [1]
void IconPreviewArea::setIcon(const QIcon &icon)
{
@@ -118,23 +180,27 @@ QLabel *IconPreviewArea::createPixmapLabel()
//! [5]
void IconPreviewArea::updatePixmapLabels()
{
- for (int i = 0; i < NumModes; ++i) {
- QIcon::Mode mode;
- if (i == 0) {
- mode = QIcon::Normal;
- } else if (i == 1) {
- mode = QIcon::Active;
- } else if (i == 2) {
- mode = QIcon::Disabled;
- } else {
- mode = QIcon::Selected;
- }
-
- for (int j = 0; j < NumStates; ++j) {
- QIcon::State state = (j == 0) ? QIcon::Off : QIcon::On;
- QPixmap pixmap = icon.pixmap(size, mode, state);
- pixmapLabels[i][j]->setPixmap(pixmap);
- pixmapLabels[i][j]->setEnabled(!pixmap.isNull());
+ QWindow *window = Q_NULLPTR;
+ if (const QWidget *nativeParent = nativeParentWidget())
+ window = nativeParent->windowHandle();
+ for (int column = 0; column < NumModes; ++column) {
+ for (int row = 0; row < NumStates; ++row) {
+ const QPixmap pixmap =
+ icon.pixmap(window, size, IconPreviewArea::iconModes().at(column),
+ IconPreviewArea::iconStates().at(row));
+ QLabel *pixmapLabel = pixmapLabels[column][row];
+ pixmapLabel->setPixmap(pixmap);
+ pixmapLabel->setEnabled(!pixmap.isNull());
+ QString toolTip;
+ if (!pixmap.isNull()) {
+ const QSize actualSize = icon.actualSize(size);
+ toolTip =
+ tr("Size: %1x%2\nActual size: %3x%4\nDevice pixel ratio: %5")
+ .arg(size.width()).arg(size.height())
+ .arg(actualSize.width()).arg(actualSize.height())
+ .arg(pixmap.devicePixelRatioF());
+ }
+ pixmapLabel->setToolTip(toolTip);
}
}
}
diff --git a/examples/widgets/widgets/icons/iconpreviewarea.h b/examples/widgets/widgets/icons/iconpreviewarea.h
index c2e0a7b79d..693f8811d8 100644
--- a/examples/widgets/widgets/icons/iconpreviewarea.h
+++ b/examples/widgets/widgets/icons/iconpreviewarea.h
@@ -43,6 +43,8 @@
#include <QIcon>
#include <QWidget>
+#include <QStringList>
+#include <QVector>
QT_BEGIN_NAMESPACE
class QLabel;
@@ -54,11 +56,16 @@ class IconPreviewArea : public QWidget
Q_OBJECT
public:
- IconPreviewArea(QWidget *parent = 0);
+ explicit IconPreviewArea(QWidget *parent = Q_NULLPTR);
void setIcon(const QIcon &icon);
void setSize(const QSize &size);
+ static QVector<QIcon::Mode> iconModes();
+ static QVector<QIcon::State> iconStates();
+ static QStringList iconModeNames();
+ static QStringList iconStateNames();
+
private:
QLabel *createHeaderLabel(const QString &text);
QLabel *createPixmapLabel();
diff --git a/examples/widgets/widgets/icons/icons.pro b/examples/widgets/widgets/icons/icons.pro
index 4312a40e95..4ee95592c8 100644
--- a/examples/widgets/widgets/icons/icons.pro
+++ b/examples/widgets/widgets/icons/icons.pro
@@ -10,6 +10,8 @@ SOURCES = iconpreviewarea.cpp \
main.cpp \
mainwindow.cpp
+DEFINES += SRCDIR=\\\"$$PWD/\\\"
+
EXAMPLE_FILES = images/*
# install
diff --git a/examples/widgets/widgets/icons/iconsizespinbox.cpp b/examples/widgets/widgets/icons/iconsizespinbox.cpp
index f3796040b3..1916803eea 100644
--- a/examples/widgets/widgets/icons/iconsizespinbox.cpp
+++ b/examples/widgets/widgets/icons/iconsizespinbox.cpp
@@ -52,13 +52,13 @@ IconSizeSpinBox::IconSizeSpinBox(QWidget *parent)
//! [1]
int IconSizeSpinBox::valueFromText(const QString &text) const
{
- QRegExp regExp(tr("(\\d+)(\\s*[xx]\\s*\\d+)?"));
+ static const QRegularExpression regExp(tr("(\\d+)(\\s*[xx]\\s*\\d+)?"));
+ Q_ASSERT(regExp.isValid());
- if (regExp.exactMatch(text)) {
- return regExp.cap(1).toInt();
- } else {
- return 0;
- }
+ const QRegularExpressionMatch match = regExp.match(text);
+ if (match.isValid())
+ return match.captured(1).toInt();
+ return 0;
}
//! [1]
diff --git a/examples/widgets/widgets/icons/iconsizespinbox.h b/examples/widgets/widgets/icons/iconsizespinbox.h
index 08105c771c..96b277de39 100644
--- a/examples/widgets/widgets/icons/iconsizespinbox.h
+++ b/examples/widgets/widgets/icons/iconsizespinbox.h
@@ -49,7 +49,7 @@ class IconSizeSpinBox : public QSpinBox
Q_OBJECT
public:
- IconSizeSpinBox(QWidget *parent = 0);
+ explicit IconSizeSpinBox(QWidget *parent = Q_NULLPTR);
int valueFromText(const QString &text) const Q_DECL_OVERRIDE;
QString textFromValue(int value) const Q_DECL_OVERRIDE;
diff --git a/examples/widgets/widgets/icons/imagedelegate.cpp b/examples/widgets/widgets/icons/imagedelegate.cpp
index a6df8f3b04..7c393594ca 100644
--- a/examples/widgets/widgets/icons/imagedelegate.cpp
+++ b/examples/widgets/widgets/icons/imagedelegate.cpp
@@ -41,6 +41,7 @@
#include <QtWidgets>
#include "imagedelegate.h"
+#include "iconpreviewarea.h"
//! [0]
ImageDelegate::ImageDelegate(QObject *parent)
@@ -55,17 +56,14 @@ QWidget *ImageDelegate::createEditor(QWidget *parent,
const QModelIndex &index) const
{
QComboBox *comboBox = new QComboBox(parent);
- if (index.column() == 1) {
- comboBox->addItem(tr("Normal"));
- comboBox->addItem(tr("Active"));
- comboBox->addItem(tr("Disabled"));
- comboBox->addItem(tr("Selected"));
- } else if (index.column() == 2) {
- comboBox->addItem(tr("Off"));
- comboBox->addItem(tr("On"));
- }
+ if (index.column() == 1)
+ comboBox->addItems(IconPreviewArea::iconModeNames());
+ else if (index.column() == 2)
+ comboBox->addItems(IconPreviewArea::iconStateNames());
- connect(comboBox, SIGNAL(activated(int)), this, SLOT(emitCommitData()));
+ typedef void (QComboBox::*QComboBoxIntSignal)(int);
+ connect(comboBox, static_cast<QComboBoxIntSignal>(&QComboBox::activated),
+ this, &ImageDelegate::emitCommitData);
return comboBox;
}
diff --git a/examples/widgets/widgets/icons/imagedelegate.h b/examples/widgets/widgets/icons/imagedelegate.h
index a828251013..ed1d8210d5 100644
--- a/examples/widgets/widgets/icons/imagedelegate.h
+++ b/examples/widgets/widgets/icons/imagedelegate.h
@@ -49,7 +49,7 @@ class ImageDelegate : public QItemDelegate
Q_OBJECT
public:
- ImageDelegate(QObject *parent = 0);
+ explicit ImageDelegate(QObject *parent = Q_NULLPTR);
//! [0]
//! [1]
diff --git a/examples/widgets/widgets/icons/main.cpp b/examples/widgets/widgets/icons/main.cpp
index 842a474405..d6a823f1c7 100644
--- a/examples/widgets/widgets/icons/main.cpp
+++ b/examples/widgets/widgets/icons/main.cpp
@@ -39,13 +39,39 @@
****************************************************************************/
#include <QApplication>
+#include <QCommandLineParser>
+#include <QDesktopWidget>
#include "mainwindow.h"
+//! [45]
int main(int argc, char *argv[])
{
QApplication app(argc, argv);
+ QCoreApplication::setApplicationName(MainWindow::tr("Icons"));
+ QCoreApplication::setApplicationVersion(QT_VERSION_STR);
+ QCommandLineParser commandLineParser;
+ commandLineParser.setSingleDashWordOptionMode(QCommandLineParser::ParseAsLongOptions);
+ commandLineParser.addHelpOption();
+ commandLineParser.addVersionOption();
+ QCommandLineOption noHighDpiPixmapOption("no-highdpi-pixmaps",
+ "Disable High DPI image loading (Qt::AA_UseHighDpiPixmaps)");
+ commandLineParser.addOption(noHighDpiPixmapOption);
+ commandLineParser.addPositionalArgument(MainWindow::tr("[file]"), MainWindow::tr("Icon file(s) to open."));
+ commandLineParser.process(QCoreApplication::arguments());
+
+ if (!commandLineParser.isSet(noHighDpiPixmapOption))
+ QCoreApplication::setAttribute(Qt::AA_UseHighDpiPixmaps);
+
MainWindow mainWin;
+ if (!commandLineParser.positionalArguments().isEmpty())
+ mainWin.loadImages(commandLineParser.positionalArguments());
+
+ const QRect availableGeometry = QApplication::desktop()->availableGeometry(&mainWin);
+ mainWin.resize(availableGeometry.width() / 2, availableGeometry.height() * 2 / 3);
+ mainWin.move((availableGeometry.width() - mainWin.width()) / 2, (availableGeometry.height() - mainWin.height()) / 2);
+
mainWin.show();
return app.exec();
}
+//! [45]
diff --git a/examples/widgets/widgets/icons/mainwindow.cpp b/examples/widgets/widgets/icons/mainwindow.cpp
index 86d18cd62a..4c76b0ee16 100644
--- a/examples/widgets/widgets/icons/mainwindow.cpp
+++ b/examples/widgets/widgets/icons/mainwindow.cpp
@@ -45,34 +45,49 @@
#include "imagedelegate.h"
#include "mainwindow.h"
+//! [40]
+enum { OtherSize = QStyle::PM_CustomBase };
+//! [40]
+
//! [0]
MainWindow::MainWindow()
{
- centralWidget = new QWidget;
+ QWidget *centralWidget = new QWidget(this);
setCentralWidget(centralWidget);
- createPreviewGroupBox();
- createImagesGroupBox();
- createIconSizeGroupBox();
-
createActions();
- createMenus();
- createContextMenu();
- QGridLayout *mainLayout = new QGridLayout;
+ QGridLayout *mainLayout = new QGridLayout(centralWidget);
+
+ QGroupBox *previewGroupBox = new QGroupBox(tr("Preview"));
+ previewArea = new IconPreviewArea(previewGroupBox);
+ QVBoxLayout *previewLayout = new QVBoxLayout(previewGroupBox);
+ previewLayout->addWidget(previewArea);
+
mainLayout->addWidget(previewGroupBox, 0, 0, 1, 2);
- mainLayout->addWidget(imagesGroupBox, 1, 0);
- mainLayout->addWidget(iconSizeGroupBox, 1, 1);
- centralWidget->setLayout(mainLayout);
+ mainLayout->addWidget(createImagesGroupBox(), 1, 0);
+ QVBoxLayout *vBox = new QVBoxLayout;
+ vBox->addWidget(createIconSizeGroupBox());
+ vBox->addWidget(createHighDpiIconSizeGroupBox());
+ vBox->addItem(new QSpacerItem(0, 0, QSizePolicy::Ignored, QSizePolicy::MinimumExpanding));
+ mainLayout->addLayout(vBox, 1, 1);
+ createContextMenu();
setWindowTitle(tr("Icons"));
checkCurrentStyle();
- otherRadioButton->click();
-
- resize(minimumSizeHint());
+ sizeButtonGroup->button(OtherSize)->click();
}
//! [0]
+//! [44]
+void MainWindow::show()
+{
+ QMainWindow::show();
+ connect(windowHandle(), &QWindow::screenChanged, this, &MainWindow::screenChanged);
+ screenChanged();
+}
+//! [44]
+
//! [1]
void MainWindow::about()
{
@@ -89,60 +104,62 @@ void MainWindow::changeStyle(bool checked)
if (!checked)
return;
- QAction *action = qobject_cast<QAction *>(sender());
+ const 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();
+ foreach (QAbstractButton *button, sizeButtonGroup->buttons()) {
+ const QStyle::PixelMetric metric = static_cast<QStyle::PixelMetric>(sizeButtonGroup->id(button));
+ const int value = style->pixelMetric(metric);
+ switch (metric) {
+ case QStyle::PM_SmallIconSize:
+ button->setText(tr("Small (%1 x %1)").arg(value));
+ break;
+ case QStyle::PM_LargeIconSize:
+ button->setText(tr("Large (%1 x %1)").arg(value));
+ break;
+ case QStyle::PM_ToolBarIconSize:
+ button->setText(tr("Toolbars (%1 x %1)").arg(value));
+ break;
+ case QStyle::PM_ListViewIconSize:
+ button->setText(tr("List views (%1 x %1)").arg(value));
+ break;
+ case QStyle::PM_IconViewIconSize:
+ button->setText(tr("Icon views (%1 x %1)").arg(value));
+ break;
+ case QStyle::PM_TabBarIconSize:
+ button->setText(tr("Tab bars (%1 x %1)").arg(value));
+ break;
+ default:
+ break;
+ }
+ }
+
+ triggerChangeSize();
}
//! [4]
//! [5]
-void MainWindow::changeSize(bool checked)
+void MainWindow::changeSize(int id, 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);
- }
+ const bool other = id == int(OtherSize);
+ const int extent = other
+ ? otherSpinBox->value()
+ : QApplication::style()->pixelMetric(static_cast<QStyle::PixelMetric>(id));
+
previewArea->setSize(QSize(extent, extent));
- otherSpinBox->setEnabled(otherRadioButton->isChecked());
+ otherSpinBox->setEnabled(other);
+}
+
+void MainWindow::triggerChangeSize()
+{
+ changeSize(sizeButtonGroup->checkedId(), true);
}
//! [5]
@@ -152,33 +169,21 @@ 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]
+ const QTableWidgetItem *fileItem = imagesTable->item(row, 0);
+ const QTableWidgetItem *modeItem = imagesTable->item(row, 1);
+ const QTableWidgetItem *stateItem = imagesTable->item(row, 2);
+
+ if (fileItem->checkState() == Qt::Checked) {
+ const int modeIndex = IconPreviewArea::iconModeNames().indexOf(modeItem->text());
+ Q_ASSERT(modeIndex >= 0);
+ const int stateIndex = IconPreviewArea::iconStateNames().indexOf(stateItem->text());
+ Q_ASSERT(stateIndex >= 0);
+ const QIcon::Mode mode = IconPreviewArea::iconModes().at(modeIndex);
+ const QIcon::State state = IconPreviewArea::iconStates().at(stateIndex);
+//! [6]
//! [8]
- QString fileName = item0->data(Qt::UserRole).toString();
+ const QString fileName = fileItem->data(Qt::UserRole).toString();
QImage image(fileName);
if (!image.isNull())
icon.addPixmap(QPixmap::fromImage(image), mode, state);
@@ -193,61 +198,109 @@ void MainWindow::changeIcon()
}
//! [11]
+void MainWindow::addSampleImages()
+{
+ addImages(QLatin1String(SRCDIR) + QLatin1String("/images"));
+}
+
+void MainWindow::addOtherImages()
+{
+ static bool firstInvocation = true;
+ QString directory;
+ if (firstInvocation) {
+ firstInvocation = false;
+ directory = QStandardPaths::standardLocations(QStandardPaths::PicturesLocation).value(0, QString());
+ }
+ addImages(directory);
+}
+
//! [12]
-void MainWindow::addImages()
+void MainWindow::addImages(const QString &directory)
{
- 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);
+ QFileDialog fileDialog(this, tr("Open Images"), directory);
+ QStringList mimeTypeFilters;
+ foreach (const QByteArray &mimeTypeName, QImageReader::supportedMimeTypes())
+ mimeTypeFilters.append(mimeTypeName);
+ mimeTypeFilters.sort();
+ fileDialog.setMimeTypeFilters(mimeTypeFilters);
+ fileDialog.selectMimeTypeFilter(QLatin1String("image/png"));
+ fileDialog.setAcceptMode(QFileDialog::AcceptOpen);
+ fileDialog.setFileMode(QFileDialog::ExistingFiles);
+ if (!nativeFileDialogAct->isChecked())
+ fileDialog.setOption(QFileDialog::DontUseNativeDialog);
+ if (fileDialog.exec() == QDialog::Accepted)
+ loadImages(fileDialog.selectedFiles());
//! [12]
+}
+void MainWindow::loadImages(const QStringList &fileNames)
+{
+ foreach (const QString &fileName, fileNames) {
+ const int row = imagesTable->rowCount();
+ imagesTable->setRowCount(row + 1);
//! [13]
- QString imageName = QFileInfo(fileName).baseName();
+ const QFileInfo fileInfo(fileName);
+ const QString imageName = fileInfo.baseName();
+ const QString fileName2x = fileInfo.absolutePath()
+ + QLatin1Char('/') + imageName + QLatin1String("@2x.") + fileInfo.suffix();
+ const QFileInfo fileInfo2x(fileName2x);
+ const QImage image(fileName);
+ const QString toolTip =
+ tr("Directory: %1\nFile: %2\nFile@2x: %3\nSize: %4x%5")
+ .arg(QDir::toNativeSeparators(fileInfo.absolutePath()), fileInfo.fileName())
+ .arg(fileInfo2x.exists() ? fileInfo2x.fileName() : tr("<None>"))
+ .arg(image.width()).arg(image.height());
//! [13] //! [14]
- QTableWidgetItem *item0 = new QTableWidgetItem(imageName);
- item0->setData(Qt::UserRole, fileName);
- item0->setFlags(item0->flags() & ~Qt::ItemIsEditable);
+ QTableWidgetItem *fileItem = new QTableWidgetItem(imageName);
+ fileItem->setData(Qt::UserRole, fileName);
+ fileItem->setIcon(QPixmap::fromImage(image));
+ fileItem->setFlags((fileItem->flags() | Qt::ItemIsUserCheckable) & ~Qt::ItemIsEditable);
+ fileItem->setToolTip(toolTip);
//! [14]
//! [15]
- QTableWidgetItem *item1 = new QTableWidgetItem(tr("Normal"));
+ QIcon::Mode mode = QIcon::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"));
+ QIcon::State state = QIcon::Off;
+ if (guessModeStateAct->isChecked()) {
+ if (imageName.contains(QLatin1String("_act"), Qt::CaseInsensitive))
+ mode = QIcon::Active;
+ else if (imageName.contains(QLatin1String("_dis"), Qt::CaseInsensitive))
+ mode = QIcon::Disabled;
+ else if (imageName.contains(QLatin1String("_sel"), Qt::CaseInsensitive))
+ mode = QIcon::Selected;
+
+ if (imageName.contains(QLatin1String("_on"), Qt::CaseInsensitive))
+ state = QIcon::On;
//! [16] //! [17]
- }
+ }
//! [17]
//! [18]
- imagesTable->setItem(row, 0, item0);
+ imagesTable->setItem(row, 0, fileItem);
//! [18] //! [19]
- imagesTable->setItem(row, 1, item1);
- imagesTable->setItem(row, 2, item2);
- imagesTable->openPersistentEditor(item1);
- imagesTable->openPersistentEditor(item2);
-
- item0->setCheckState(Qt::Checked);
- }
+ QTableWidgetItem *modeItem =
+ new QTableWidgetItem(IconPreviewArea::iconModeNames().at(IconPreviewArea::iconModes().indexOf(mode)));
+ modeItem->setToolTip(toolTip);
+ imagesTable->setItem(row, 1, modeItem);
+ QTableWidgetItem *stateItem =
+ new QTableWidgetItem(IconPreviewArea::iconStateNames().at(IconPreviewArea::iconStates().indexOf(state)));
+ stateItem->setToolTip(toolTip);
+ imagesTable->setItem(row, 2, stateItem);
+ imagesTable->openPersistentEditor(modeItem);
+ imagesTable->openPersistentEditor(stateItem);
+
+ fileItem->setCheckState(Qt::Checked);
}
}
//! [19]
+void MainWindow::useHighDpiPixmapsChanged(int checkState)
+{
+ QCoreApplication::setAttribute(Qt::AA_UseHighDpiPixmaps, checkState == Qt::Checked);
+ changeIcon();
+}
+
//! [20]
void MainWindow::removeAllImages()
{
@@ -256,21 +309,10 @@ void MainWindow::removeAllImages()
}
//! [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()
+QWidget *MainWindow::createImagesGroupBox()
{
- imagesGroupBox = new QGroupBox(tr("Images"));
+ QGroupBox *imagesGroupBox = new QGroupBox(tr("Images"));
imagesTable = new QTableWidget;
imagesTable->setSelectionMode(QAbstractItemView::NoSelection);
@@ -292,57 +334,63 @@ void MainWindow::createImagesGroupBox()
//! [23]
//! [24]
- connect(imagesTable, SIGNAL(itemChanged(QTableWidgetItem*)),
+ connect(imagesTable, &QTableWidget::itemChanged,
//! [24] //! [25]
- this, SLOT(changeIcon()));
+ this, &MainWindow::changeIcon);
- QVBoxLayout *layout = new QVBoxLayout;
+ QVBoxLayout *layout = new QVBoxLayout(imagesGroupBox);
layout->addWidget(imagesTable);
- imagesGroupBox->setLayout(layout);
+ return imagesGroupBox;
}
//! [25]
//! [26]
-void MainWindow::createIconSizeGroupBox()
+QWidget *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:"));
-
+ QGroupBox *iconSizeGroupBox = new QGroupBox(tr("Icon Size"));
+
+ sizeButtonGroup = new QButtonGroup(this);
+ sizeButtonGroup->setExclusive(true);
+
+ typedef void (QButtonGroup::*QButtonGroupIntBoolSignal)(int, bool);
+ connect(sizeButtonGroup, static_cast<QButtonGroupIntBoolSignal>(&QButtonGroup::buttonToggled),
+ this, &MainWindow::changeSize);
+
+ QRadioButton *smallRadioButton = new QRadioButton;
+ sizeButtonGroup->addButton(smallRadioButton, QStyle::PM_SmallIconSize);
+ QRadioButton *largeRadioButton = new QRadioButton;
+ sizeButtonGroup->addButton(largeRadioButton, QStyle::PM_LargeIconSize);
+ QRadioButton *toolBarRadioButton = new QRadioButton;
+ sizeButtonGroup->addButton(toolBarRadioButton, QStyle::PM_ToolBarIconSize);
+ QRadioButton *listViewRadioButton = new QRadioButton;
+ sizeButtonGroup->addButton(listViewRadioButton, QStyle::PM_ListViewIconSize);
+ QRadioButton *iconViewRadioButton = new QRadioButton;
+ sizeButtonGroup->addButton(iconViewRadioButton, QStyle::PM_IconViewIconSize);
+ QRadioButton *tabBarRadioButton = new QRadioButton;
+ sizeButtonGroup->addButton(tabBarRadioButton, QStyle::PM_TabBarIconSize);
+ QRadioButton *otherRadioButton = new QRadioButton(tr("Other:"));
+ sizeButtonGroup->addButton(otherRadioButton, OtherSize);
otherSpinBox = new IconSizeSpinBox;
- otherSpinBox->setRange(8, 128);
+ otherSpinBox->setRange(8, 256);
+ const QString spinBoxToolTip =
+ tr("Enter a custom size within %1..%2")
+ .arg(otherSpinBox->minimum()).arg(otherSpinBox->maximum());
otherSpinBox->setValue(64);
+ otherSpinBox->setToolTip(spinBoxToolTip);
+ otherRadioButton->setToolTip(spinBoxToolTip);
//! [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()));
+ typedef void (QSpinBox::*QSpinBoxIntSignal)(int);
+ connect(otherSpinBox, static_cast<QSpinBoxIntSignal>(&QSpinBox::valueChanged),
+ this, &MainWindow::triggerChangeSize);
QHBoxLayout *otherSizeLayout = new QHBoxLayout;
otherSizeLayout->addWidget(otherRadioButton);
otherSizeLayout->addWidget(otherSpinBox);
otherSizeLayout->addStretch();
- QGridLayout *layout = new QGridLayout;
+ QGridLayout *layout = new QGridLayout(iconSizeGroupBox);
layout->addWidget(smallRadioButton, 0, 0);
layout->addWidget(largeRadioButton, 1, 0);
layout->addWidget(toolBarRadioButton, 2, 0);
@@ -351,75 +399,99 @@ void MainWindow::createIconSizeGroupBox()
layout->addWidget(tabBarRadioButton, 2, 1);
layout->addLayout(otherSizeLayout, 3, 0, 1, 2);
layout->setRowStretch(4, 1);
- iconSizeGroupBox->setLayout(layout);
+ return iconSizeGroupBox;
}
//! [27]
+void MainWindow::screenChanged()
+{
+ devicePixelRatioLabel->setText(QString::number(devicePixelRatioF()));
+ if (const QWindow *window = windowHandle()) {
+ const QScreen *screen = window->screen();
+ const QString screenDescription =
+ tr("\"%1\" (%2x%3)").arg(screen->name())
+ .arg(screen->geometry().width()).arg(screen->geometry().height());
+ screenNameLabel->setText(screenDescription);
+ }
+ changeIcon();
+}
+
+QWidget *MainWindow::createHighDpiIconSizeGroupBox()
+{
+ QGroupBox *highDpiGroupBox = new QGroupBox(tr("High DPI Scaling"));
+ QFormLayout *layout = new QFormLayout(highDpiGroupBox);
+ devicePixelRatioLabel = new QLabel(highDpiGroupBox);
+ screenNameLabel = new QLabel(highDpiGroupBox);
+ layout->addRow(tr("Screen:"), screenNameLabel);
+ layout->addRow(tr("Device pixel ratio:"), devicePixelRatioLabel);
+ QCheckBox *highDpiPixmapsCheckBox = new QCheckBox(QLatin1String("Qt::AA_UseHighDpiPixmaps"));
+ highDpiPixmapsCheckBox->setChecked(QCoreApplication::testAttribute(Qt::AA_UseHighDpiPixmaps));
+ connect(highDpiPixmapsCheckBox, &QCheckBox::stateChanged, this, &MainWindow::useHighDpiPixmapsChanged);
+ layout->addRow(highDpiPixmapsCheckBox);
+ return highDpiGroupBox;
+}
+
//! [28]
void MainWindow::createActions()
{
- addImagesAct = new QAction(tr("&Add Images..."), this);
- addImagesAct->setShortcut(tr("Ctrl+A"));
- connect(addImagesAct, SIGNAL(triggered()), this, SLOT(addImages()));
+ QMenu *fileMenu = menuBar()->addMenu(tr("&File"));
+
+ addSampleImagesAct = new QAction(tr("Add &Sample Images..."), this);
+ addSampleImagesAct->setShortcut(tr("Ctrl+A"));
+ connect(addSampleImagesAct, &QAction::triggered, this, &MainWindow::addSampleImages);
+ fileMenu->addAction(addSampleImagesAct);
+
+ addOtherImagesAct = new QAction(tr("&Add Images..."), this);
+ addOtherImagesAct->setShortcut(QKeySequence::Open);
+ connect(addOtherImagesAct, &QAction::triggered, this, &MainWindow::addOtherImages);
+ fileMenu->addAction(addOtherImagesAct);
removeAllImagesAct = new QAction(tr("&Remove All Images"), this);
removeAllImagesAct->setShortcut(tr("Ctrl+R"));
- connect(removeAllImagesAct, SIGNAL(triggered()),
- this, SLOT(removeAllImages()));
+ connect(removeAllImagesAct, &QAction::triggered,
+ this, &MainWindow::removeAllImages);
+ fileMenu->addAction(removeAllImagesAct);
- exitAct = new QAction(tr("&Quit"), this);
+ fileMenu->addSeparator();
+
+ QAction *exitAct = fileMenu->addAction(tr("&Quit"), this, &QWidget::close);
exitAct->setShortcuts(QKeySequence::Quit);
- connect(exitAct, SIGNAL(triggered()), this, SLOT(close()));
+
+ QMenu *viewMenu = menuBar()->addMenu(tr("&View"));
styleActionGroup = new QActionGroup(this);
- foreach (QString styleName, QStyleFactory::keys()) {
- QAction *action = new QAction(styleActionGroup);
- action->setText(tr("%1 Style").arg(styleName));
+ foreach (const QString &styleName, QStyleFactory::keys()) {
+ QAction *action = new QAction(tr("%1 Style").arg(styleName), styleActionGroup);
action->setData(styleName);
action->setCheckable(true);
- connect(action, SIGNAL(triggered(bool)), this, SLOT(changeStyle(bool)));
+ connect(action, &QAction::triggered, this, &MainWindow::changeStyle);
+ viewMenu->addAction(action);
}
+ QMenu *settingsMenu = menuBar()->addMenu(tr("&Settings"));
+
guessModeStateAct = new QAction(tr("&Guess Image Mode/State"), this);
guessModeStateAct->setCheckable(true);
guessModeStateAct->setChecked(true);
+ settingsMenu->addAction(guessModeStateAct);
- aboutAct = new QAction(tr("&About"), this);
- connect(aboutAct, SIGNAL(triggered()), this, SLOT(about()));
+ nativeFileDialogAct = new QAction(tr("&Use Native File Dialog"), this);
+ nativeFileDialogAct->setCheckable(true);
+ nativeFileDialogAct->setChecked(true);
+ settingsMenu->addAction(nativeFileDialogAct);
- aboutQtAct = new QAction(tr("About &Qt"), this);
- connect(aboutQtAct, SIGNAL(triggered()), qApp, SLOT(aboutQt()));
+ QMenu *helpMenu = menuBar()->addMenu(tr("&Help"));
+ helpMenu->addAction(tr("&About"), this, &MainWindow::about);
+ helpMenu->addAction(tr("About &Qt"), qApp, &QApplication::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(addSampleImagesAct);
+ imagesTable->addAction(addOtherImagesAct);
imagesTable->addAction(removeAllImagesAct);
}
//! [30]
@@ -429,14 +501,13 @@ void MainWindow::checkCurrentStyle()
{
foreach (QAction *action, styleActionGroup->actions()) {
QString styleName = action->data().toString();
- QStyle *candidate = QStyleFactory::create(styleName);
- Q_ASSERT(candidate);
+ QScopedPointer<QStyle> candidate(QStyleFactory::create(styleName));
+ Q_ASSERT(!candidate.isNull());
if (candidate->metaObject()->className()
== QApplication::style()->metaObject()->className()) {
action->trigger();
return;
}
- delete candidate;
}
}
//! [31]
diff --git a/examples/widgets/widgets/icons/mainwindow.h b/examples/widgets/widgets/icons/mainwindow.h
index 3628038878..207986f741 100644
--- a/examples/widgets/widgets/icons/mainwindow.h
+++ b/examples/widgets/widgets/icons/mainwindow.h
@@ -49,9 +49,10 @@
QT_BEGIN_NAMESPACE
class QAction;
class QActionGroup;
-class QGroupBox;
+class QLabel;
class QMenu;
class QRadioButton;
+class QButtonGroup;
class QTableWidget;
QT_END_NAMESPACE
class IconPreviewArea;
@@ -65,51 +66,47 @@ class MainWindow : public QMainWindow
public:
MainWindow();
+ void loadImages(const QStringList &fileNames);
+
+ void show();
+
private slots:
void about();
void changeStyle(bool checked);
- void changeSize(bool checked = true);
+ void changeSize(int, bool);
+ void triggerChangeSize();
void changeIcon();
- void addImages();
+ void addSampleImages();
+ void addOtherImages();
void removeAllImages();
+ void useHighDpiPixmapsChanged(int checkState);
+ void screenChanged();
private:
- void createPreviewGroupBox();
- void createImagesGroupBox();
- void createIconSizeGroupBox();
+ QWidget *createImagesGroupBox();
+ QWidget *createIconSizeGroupBox();
+ QWidget *createHighDpiIconSizeGroupBox();
void createActions();
- void createMenus();
void createContextMenu();
void checkCurrentStyle();
+ void addImages(const QString &directory);
- QWidget *centralWidget;
-
- QGroupBox *previewGroupBox;
IconPreviewArea *previewArea;
- QGroupBox *imagesGroupBox;
QTableWidget *imagesTable;
- QGroupBox *iconSizeGroupBox;
- QRadioButton *smallRadioButton;
- QRadioButton *largeRadioButton;
- QRadioButton *toolBarRadioButton;
- QRadioButton *listViewRadioButton;
- QRadioButton *iconViewRadioButton;
- QRadioButton *tabBarRadioButton;
- QRadioButton *otherRadioButton;
+ QButtonGroup *sizeButtonGroup;
IconSizeSpinBox *otherSpinBox;
- QMenu *fileMenu;
- QMenu *viewMenu;
- QMenu *helpMenu;
- QAction *addImagesAct;
+ QLabel *devicePixelRatioLabel;
+ QLabel *screenNameLabel;
+
+ QAction *addOtherImagesAct;
+ QAction *addSampleImagesAct;
QAction *removeAllImagesAct;
- QAction *exitAct;
QAction *guessModeStateAct;
+ QAction *nativeFileDialogAct;
QActionGroup *styleActionGroup;
- QAction *aboutAct;
- QAction *aboutQtAct;
};
//! [0]
generated by cgit v1.2.3 (git 2.25.1) at 2024-04-24 19:18:13 +0000