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qt5base-lts/tests/manual/highdpi/main.cpp
Jani Heikkinen 83a5694dc2 Update copyright headers 
Qt copyrights are now in The Qt Company, so we could update the source
code headers accordingly. In the same go we should also fix the links to
point to qt.io.

Outdated header.LGPL removed (use header.LGPL21 instead)

Old header.LGPL3 renamed to header.LGPL3-COMM to match actual licensing
combination. New header.LGPL-COMM taken in the use file which were
using old header.LGPL3 (src/plugins/platforms/android/extract.cpp)

Added new header.LGPL3 containing Commercial + LGPLv3 + GPLv2 license
combination

Change-Id: I6f49b819a8a20cc4f88b794a8f6726d975e8ffbe
Reviewed-by: Matti Paaso <matti.paaso@theqtcompany.com>
2015-02-11 06:49:51 +00:00

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/****************************************************************************
**
** Copyright (C) 2015 The Qt Company Ltd.
** Contact: http://www.qt.io/licensing/
**
** This file is part of the test suite of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL21$
** Commercial License Usage
** Licensees holding valid commercial Qt licenses may use this file in
** accordance with the commercial license agreement provided with the
** Software or, alternatively, in accordance with the terms contained in
** a written agreement between you and The Qt Company. For licensing terms
** and conditions see http://www.qt.io/terms-conditions. For further
** information use the contact form at http://www.qt.io/contact-us.
**
** GNU Lesser General Public License Usage
** Alternatively, this file may be used under the terms of the GNU Lesser
** General Public License version 2.1 or version 3 as published by the Free
** Software Foundation and appearing in the file LICENSE.LGPLv21 and
** LICENSE.LGPLv3 included in the packaging of this file. Please review the
** following information to ensure the GNU Lesser General Public License
** requirements will be met: https://www.gnu.org/licenses/lgpl.html and
** http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
**
** As a special exception, The Qt Company gives you certain additional
** rights. These rights are described in The Qt Company LGPL Exception
** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
**
** $QT_END_LICENSE$
**
****************************************************************************/
#include <QMainWindow>
#include <QLabel>
#include <QHBoxLayout>
#include <QApplication>
#include <QAction>
#include <QStyle>
#include <QToolBar>
#include <QPushButton>
#include <QLineEdit>
#include <QScrollBar>
#include <QSlider>
#include <QSpinBox>
#include <QTabBar>
#include <QIcon>
#include <QPainter>
#include <QWindow>
#include <QScreen>
#include <QFile>
#include <QTemporaryDir>
#include <QCommandLineParser>
#include <QCommandLineOption>
class PixmapPainter : public QWidget
{
public:
PixmapPainter();
void paintEvent(QPaintEvent *event);
QPixmap pixmap1X;
QPixmap pixmap2X;
QPixmap pixmapLarge;
QImage image1X;
QImage image2X;
QImage imageLarge;
QIcon qtIcon;
};
PixmapPainter::PixmapPainter()
{
pixmap1X = QPixmap(":/qticon32.png");
pixmap2X = QPixmap(":/qticon32@2x.png");
pixmapLarge = QPixmap(":/qticon64.png");
image1X = QImage(":/qticon32.png");
image2X = QImage(":/qticon32@2x.png");
imageLarge = QImage(":/qticon64.png");
qtIcon.addFile(":/qticon32.png");
qtIcon.addFile(":/qticon32@2x.png");
}
void PixmapPainter::paintEvent(QPaintEvent *)
{
QPainter p(this);
p.fillRect(QRect(QPoint(0, 0), size()), QBrush(Qt::gray));
int pixmapPointSize = 32;
int y = 30;
int dy = 90;
int x = 10;
int dx = 40;
// draw at point
// qDebug() << "paint pixmap" << pixmap1X.devicePixelRatio();
p.drawPixmap(x, y, pixmap1X);
x+=dx;p.drawPixmap(x, y, pixmap2X);
x+=dx;p.drawPixmap(x, y, pixmapLarge);
x+=dx*2;p.drawPixmap(x, y, qtIcon.pixmap(QSize(pixmapPointSize, pixmapPointSize)));
x+=dx;p.drawImage(x, y, image1X);
x+=dx;p.drawImage(x, y, image2X);
x+=dx;p.drawImage(x, y, imageLarge);
// draw at 32x32 rect
y+=dy;
x = 10;
p.drawPixmap(QRect(x, y, pixmapPointSize, pixmapPointSize), pixmap1X);
x+=dx;p.drawPixmap(QRect(x, y, pixmapPointSize, pixmapPointSize), pixmap2X);
x+=dx;p.drawPixmap(QRect(x, y, pixmapPointSize, pixmapPointSize), pixmapLarge);
x+=dx;p.drawPixmap(QRect(x, y, pixmapPointSize, pixmapPointSize), qtIcon.pixmap(QSize(pixmapPointSize, pixmapPointSize)));
x+=dx;p.drawImage(QRect(x, y, pixmapPointSize, pixmapPointSize), image1X);
x+=dx;p.drawImage(QRect(x, y, pixmapPointSize, pixmapPointSize), image2X);
x+=dx;p.drawImage(QRect(x, y, pixmapPointSize, pixmapPointSize), imageLarge);
// draw at 64x64 rect
y+=dy - 50;
x = 10;
p.drawPixmap(QRect(x, y, pixmapPointSize * 2, pixmapPointSize * 2), pixmap1X);
x+=dx * 2; p.drawPixmap(QRect(x, y, pixmapPointSize * 2, pixmapPointSize * 2), pixmap2X);
x+=dx * 2; p.drawPixmap(QRect(x, y, pixmapPointSize * 2, pixmapPointSize * 2), pixmapLarge);
x+=dx * 2; p.drawPixmap(QRect(x, y, pixmapPointSize * 2, pixmapPointSize * 2), qtIcon.pixmap(QSize(pixmapPointSize, pixmapPointSize)));
x+=dx * 2; p.drawImage(QRect(x, y, pixmapPointSize * 2, pixmapPointSize * 2), image1X);
x+=dx * 2; p.drawImage(QRect(x, y, pixmapPointSize * 2, pixmapPointSize * 2), image2X);
x+=dx * 2; p.drawImage(QRect(x, y, pixmapPointSize * 2, pixmapPointSize * 2), imageLarge);
}
class Labels : public QWidget
{
public:
Labels();
QPixmap pixmap1X;
QPixmap pixmap2X;
QPixmap pixmapLarge;
QIcon qtIcon;
};
Labels::Labels()
{
pixmap1X = QPixmap(":/qticon32.png");
pixmap2X = QPixmap(":/qticon32@2x.png");
pixmapLarge = QPixmap(":/qticon64.png");
qtIcon.addFile(":/qticon32.png");
qtIcon.addFile(":/qticon32@2x.png");
setWindowIcon(qtIcon);
setWindowTitle("Labels");
QLabel *label1x = new QLabel();
label1x->setPixmap(pixmap1X);
QLabel *label2x = new QLabel();
label2x->setPixmap(pixmap2X);
QLabel *labelIcon = new QLabel();
labelIcon->setPixmap(qtIcon.pixmap(QSize(32,32)));
QLabel *labelLarge = new QLabel();
labelLarge->setPixmap(pixmapLarge);
QHBoxLayout *layout = new QHBoxLayout(this);
layout->addWidget(label1x); //expected low-res on high-dpi displays
layout->addWidget(label2x); //expected high-res on high-dpi displays
layout->addWidget(labelIcon); //expected high-res on high-dpi displays
layout->addWidget(labelLarge); // expected large size and low-res
setLayout(layout);
}
class MainWindow : public QMainWindow
{
public:
MainWindow();
QIcon qtIcon;
QIcon qtIcon1x;
QIcon qtIcon2x;
QToolBar *fileToolBar;
};
MainWindow::MainWindow()
{
// beware that QIcon auto-loads the @2x versions.
qtIcon1x.addFile(":/qticon16.png");
qtIcon2x.addFile(":/qticon32.png");
setWindowIcon(qtIcon);
setWindowTitle("MainWindow");
fileToolBar = addToolBar(tr("File"));
// fileToolBar->setToolButtonStyle(Qt::ToolButtonTextUnderIcon);
fileToolBar->addAction(new QAction(qtIcon1x, QString("1x"), this));
fileToolBar->addAction(new QAction(qtIcon2x, QString("2x"), this));
}
class StandardIcons : public QWidget
{
public:
void paintEvent(QPaintEvent *)
{
int x = 10;
int y = 10;
int dx = 50;
int dy = 50;
int maxX = 500;
for (int iconIndex = QStyle::SP_TitleBarMenuButton; iconIndex < QStyle::SP_MediaVolumeMuted; ++iconIndex) {
QIcon icon = qApp->style()->standardIcon(QStyle::StandardPixmap(iconIndex));
QPainter p(this);
p.drawPixmap(x, y, icon.pixmap(dx - 5, dy - 5));
if (x + dx > maxX)
y+=dy;
x = ((x + dx) % maxX);
}
}
};
class Caching : public QWidget
{
public:
void paintEvent(QPaintEvent *)
{
QSize layoutSize(75, 75);
QPainter widgetPainter(this);
widgetPainter.fillRect(QRect(QPoint(0, 0), this->size()), Qt::gray);
{
const qreal devicePixelRatio = this->windowHandle()->devicePixelRatio();
QPixmap cache(layoutSize * devicePixelRatio);
cache.setDevicePixelRatio(devicePixelRatio);
QPainter cachedPainter(&cache);
cachedPainter.fillRect(QRect(0,0, 75, 75), Qt::blue);
cachedPainter.fillRect(QRect(10,10, 55, 55), Qt::red);
cachedPainter.drawEllipse(QRect(10,10, 55, 55));
QPainter widgetPainter(this);
widgetPainter.drawPixmap(QPoint(10, 10), cache);
}
{
const qreal devicePixelRatio = this->windowHandle()->devicePixelRatio();
QImage cache = QImage(layoutSize * devicePixelRatio, QImage::Format_ARGB32_Premultiplied);
cache.setDevicePixelRatio(devicePixelRatio);
QPainter cachedPainter(&cache);
cachedPainter.fillRect(QRect(0,0, 75, 75), Qt::blue);
cachedPainter.fillRect(QRect(10,10, 55, 55), Qt::red);
cachedPainter.drawEllipse(QRect(10,10, 55, 55));
QPainter widgetPainter(this);
widgetPainter.drawImage(QPoint(95, 10), cache);
}
}
};
class Style : public QWidget {
public:
QPushButton *button;
QLineEdit *lineEdit;
QSlider *slider;
QHBoxLayout *row1;
Style() {
row1 = new QHBoxLayout();
setLayout(row1);
button = new QPushButton();
button->setText("Test Button");
row1->addWidget(button);
lineEdit = new QLineEdit();
lineEdit->setText("Test Lineedit");
row1->addWidget(lineEdit);
slider = new QSlider();
row1->addWidget(slider);
row1->addWidget(new QSpinBox);
row1->addWidget(new QScrollBar);
QTabBar *tab = new QTabBar();
tab->addTab("Foo");
tab->addTab("Bar");
row1->addWidget(tab);
}
};
class Fonts : public QWidget
{
public:
void paintEvent(QPaintEvent *)
{
QPainter painter(this);
int y = 40;
for (int fontSize = 2; fontSize < 18; fontSize += 2) {
QFont font;
font.setPointSize(fontSize);
QString string = QString(QStringLiteral("%1 The quick brown fox jumped over the lazy Doug.")).arg(fontSize);
painter.setFont(font);
painter.drawText(10, y, string);
y += (fontSize * 2.5);
}
}
};
template <typename T>
void apiTestdevicePixelRatioGetter()
{
if (0) {
T *t = 0;
t->devicePixelRatio();
}
}
template <typename T>
void apiTestdevicePixelRatioSetter()
{
if (0) {
T *t = 0;
t->setDevicePixelRatio(2.0);
}
}
void apiTest()
{
// compile call to devicePixelRatio getter and setter (verify spelling)
apiTestdevicePixelRatioGetter<QWindow>();
apiTestdevicePixelRatioGetter<QScreen>();
apiTestdevicePixelRatioGetter<QGuiApplication>();
apiTestdevicePixelRatioGetter<QImage>();
apiTestdevicePixelRatioSetter<QImage>();
apiTestdevicePixelRatioGetter<QPixmap>();
apiTestdevicePixelRatioSetter<QPixmap>();
}
// Request and draw an icon at different sizes
class IconDrawing : public QWidget
{
public:
IconDrawing()
{
const QString tempPath = m_temporaryDir.path();
const QString path32 = tempPath + "/qticon32.png";
const QString path32_2 = tempPath + "/qticon32-2.png";
const QString path32_2x = tempPath + "/qticon32@2x.png";
QFile::copy(":/qticon32.png", path32_2);
QFile::copy(":/qticon32.png", path32);
QFile::copy(":/qticon32@2x.png", path32_2x);
iconHighDPI.reset(new QIcon(path32)); // will auto-load @2x version.
iconNormalDpi.reset(new QIcon(path32_2)); // does not have a 2x version.
}
void paintEvent(QPaintEvent *)
{
int x = 10;
int y = 10;
int dx = 50;
int dy = 50;
int maxX = 600;
int minSize = 5;
int maxSize = 64;
int sizeIncrement = 5;
// Disable high-dpi icons
QCoreApplication::setAttribute(Qt::AA_UseHighDpiPixmaps, false);
// normal icon
for (int size = minSize; size < maxSize; size += sizeIncrement) {
QPainter p(this);
p.drawPixmap(x, y, iconNormalDpi->pixmap(size, size));
if (x + dx > maxX)
y+=dy;
x = ((x + dx) % maxX);
}
x = 10;
y+=dy;
// high-dpi icon
for (int size = minSize; size < maxSize; size += sizeIncrement) {
QPainter p(this);
p.drawPixmap(x, y, iconHighDPI->pixmap(size, size));
if (x + dx > maxX)
y+=dy;
x = ((x + dx) % maxX);
}
x = 10;
y+=dy;
// Enable high-dpi icons
QCoreApplication::setAttribute(Qt::AA_UseHighDpiPixmaps, true);
// normal icon
for (int size = minSize; size < maxSize; size += sizeIncrement) {
QPainter p(this);
p.drawPixmap(x, y, iconNormalDpi->pixmap(size, size));
if (x + dx > maxX)
y+=dy;
x = ((x + dx) % maxX);
}
x = 10;
y+=dy;
// high-dpi icon (draw point)
for (int size = minSize; size < maxSize; size += sizeIncrement) {
QPainter p(this);
p.drawPixmap(x, y, iconHighDPI->pixmap(size, size));
if (x + dx > maxX)
y+=dy;
x = ((x + dx) % maxX);
}
x = 10;
y+=dy;
}
private:
QTemporaryDir m_temporaryDir;
QScopedPointer<QIcon> iconHighDPI;
QScopedPointer<QIcon> iconNormalDpi;
};
// Icons on buttons
class Buttons : public QWidget
{
public:
Buttons()
{
QIcon icon;
icon.addFile(":/qticon16@2x.png");
QPushButton *button = new QPushButton(this);
button->setIcon(icon);
button->setText("16@2x");
QTabBar *tab = new QTabBar(this);
tab->addTab(QIcon(":/qticon16.png"), "16@1x");
tab->addTab(QIcon(":/qticon16@2x.png"), "16@2x");
tab->addTab(QIcon(":/qticon16.png"), "");
tab->addTab(QIcon(":/qticon16@2x.png"), "");
tab->move(10, 100);
tab->show();
QToolBar *toolBar = new QToolBar(this);
toolBar->addAction(QIcon(":/qticon16.png"), "16");
toolBar->addAction(QIcon(":/qticon16@2x.png"), "16@2x");
toolBar->addAction(QIcon(":/qticon32.png"), "32");
toolBar->addAction(QIcon(":/qticon32@2x.png"), "32@2x");
toolBar->move(10, 200);
toolBar->show();
}
};
int main(int argc, char **argv)
{
QApplication app(argc, argv);
QCoreApplication::setAttribute(Qt::AA_UseHighDpiPixmaps);
QCoreApplication::setApplicationVersion(QT_VERSION_STR);
QCommandLineParser parser;
parser.setApplicationDescription("High DPI tester");
parser.addHelpOption();
parser.addVersionOption();
QCommandLineOption pixmapPainterOption("pixmap", "Test pixmap painter");
parser.addOption(pixmapPainterOption);
QCommandLineOption labelOption("label", "Test Labels");
parser.addOption(labelOption);
QCommandLineOption mainWindowOption("mainwindow", "Test QMainWindow");
parser.addOption(mainWindowOption);
QCommandLineOption standardIconsOption("standard-icons", "Test standard icons");
parser.addOption(standardIconsOption);
QCommandLineOption cachingOption("caching", "Test caching");
parser.addOption(cachingOption);
QCommandLineOption styleOption("styles", "Test style");
parser.addOption(styleOption);
QCommandLineOption fontsOption("fonts", "Test fonts");
parser.addOption(fontsOption);
QCommandLineOption iconDrawingOption("icondrawing", "Test icon drawing");
parser.addOption(iconDrawingOption);
QCommandLineOption buttonsOption("buttons", "Test buttons");
parser.addOption(buttonsOption);
parser.process(app);
QScopedPointer<PixmapPainter> pixmapPainter;
if (parser.isSet(pixmapPainterOption)) {
pixmapPainter.reset(new PixmapPainter);
pixmapPainter->show();
}
QScopedPointer<Labels> label;
if (parser.isSet(labelOption)) {
label.reset(new Labels);
label->resize(200, 200);
label->show();
}
QScopedPointer<MainWindow> mainWindow;
if (parser.isSet(mainWindowOption)) {
mainWindow.reset(new MainWindow);
mainWindow->show();
}
QScopedPointer<StandardIcons> icons;
if (parser.isSet(standardIconsOption)) {
icons.reset(new StandardIcons);
icons->resize(510, 510);
icons->show();
}
QScopedPointer<Caching> caching;
if (parser.isSet(cachingOption)) {
caching.reset(new Caching);
caching->resize(300, 300);
caching->show();
}
QScopedPointer<Style> style;
if (parser.isSet(styleOption)) {
style.reset(new Style);
style->show();
}
QScopedPointer<Fonts> fonts;
if (parser.isSet(fontsOption)) {
fonts.reset(new Fonts);
fonts->show();
}
QScopedPointer<IconDrawing> iconDrawing;
if (parser.isSet(iconDrawingOption)) {
iconDrawing.reset(new IconDrawing);
iconDrawing->show();
}
QScopedPointer<Buttons> buttons;
if (parser.isSet(buttonsOption)) {
buttons.reset(new Buttons);
buttons->show();
}
if (QApplication::topLevelWidgets().isEmpty())
parser.showHelp(0);
return app.exec();
}
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