367 lines
11 KiB
C++
367 lines
11 KiB
C++
|
/****************************************************************************
|
||
|
|
**
|
||
|
|
** Copyright (C) 2012 Digia Plc and/or its subsidiary(-ies).
|
||
|
|
** Contact: http://www.qt-project.org/legal
|
||
|
|
**
|
||
|
|
** This file is part of the QtGui module of the Qt Toolkit.
|
||
|
|
**
|
||
|
|
** $QT_BEGIN_LICENSE:LGPL$
|
||
|
|
** 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 Digia. For licensing terms and
|
||
|
|
** conditions see http://qt.digia.com/licensing. For further information
|
||
|
|
** use the contact form at http://qt.digia.com/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 as published by the Free Software
|
||
|
|
** Foundation and appearing in the file LICENSE.LGPL included in the
|
||
|
|
** packaging of this file. Please review the following information to
|
||
|
|
** ensure the GNU Lesser General Public License version 2.1 requirements
|
||
|
|
** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
|
||
|
|
**
|
||
|
|
** In addition, as a special exception, Digia gives you certain additional
|
||
|
|
** rights. These rights are described in the Digia Qt LGPL Exception
|
||
|
|
** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
|
||
|
|
**
|
||
|
|
** GNU General Public License Usage
|
||
|
|
** Alternatively, this file may be used under the terms of the GNU
|
||
|
|
** General Public License version 3.0 as published by the Free Software
|
||
|
|
** Foundation and appearing in the file LICENSE.GPL included in the
|
||
|
|
** packaging of this file. Please review the following information to
|
||
|
|
** ensure the GNU General Public License version 3.0 requirements will be
|
||
|
|
** met: http://www.gnu.org/copyleft/gpl.html.
|
||
|
|
**
|
||
|
|
**
|
||
|
|
** $QT_END_LICENSE$
|
||
|
|
**
|
||
|
|
****************************************************************************/
|
||
|
|
|
||
|
|
#include <QtCore>
|
||
|
|
#include <QtGui>
|
||
|
|
#include <QtWidgets>
|
||
|
|
|
||
|
|
|
||
|
|
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(":/qticon.png");
|
||
|
|
pixmap2X = QPixmap(":/qticon@2x.png");
|
||
|
|
pixmapLarge = QPixmap(":/qticon_large.png");
|
||
|
|
|
||
|
|
image1X = QImage(":/qticon.png");
|
||
|
|
image2X = QImage(":/qticon@2x.png");
|
||
|
|
imageLarge = QImage(":/qticon_large.png");
|
||
|
|
|
||
|
|
qtIcon.addFile(":/qticon.png");
|
||
|
|
qtIcon.addFile(":/qticon@2x.png");
|
||
|
|
}
|
||
|
|
|
||
|
|
void PixmapPainter::paintEvent(QPaintEvent *event)
|
||
|
|
{
|
||
|
|
QPainter p(this);
|
||
|
|
p.fillRect(QRect(QPoint(0, 0), size()), QBrush(Qt::gray));
|
||
|
|
|
||
|
|
int pixmapPointSize = 64;
|
||
|
|
int y = 30;
|
||
|
|
int dy = 150;
|
||
|
|
|
||
|
|
int x = 10;
|
||
|
|
int dx = 80;
|
||
|
|
// 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 64x64 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 128x128 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(":/qticon.png");
|
||
|
|
pixmap2X = QPixmap(":/qticon@2x.png");
|
||
|
|
pixmapLarge = QPixmap(":/qticon_large.png");
|
||
|
|
|
||
|
|
qtIcon.addFile(":/qticon.png");
|
||
|
|
qtIcon.addFile(":/qticon@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(64,64)));
|
||
|
|
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);
|
||
|
|
// layout->addWidget(labelIcon);
|
||
|
|
// 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()
|
||
|
|
{
|
||
|
|
qtIcon.addFile(":/qticon.png");
|
||
|
|
qtIcon.addFile(":/qticon@2x.png");
|
||
|
|
qtIcon1x.addFile(":/qticon.png");
|
||
|
|
qtIcon2x.addFile(":/qticon@2x.png");
|
||
|
|
setWindowIcon(qtIcon);
|
||
|
|
setWindowTitle("MainWindow");
|
||
|
|
|
||
|
|
fileToolBar = addToolBar(tr("File"));
|
||
|
|
// fileToolBar->setToolButtonStyle(Qt::ToolButtonTextUnderIcon);
|
||
|
|
fileToolBar->addAction(new QAction(qtIcon, QString("1x and 2x"), this));
|
||
|
|
fileToolBar->addAction(new QAction(qtIcon1x, QString("1x"), this));
|
||
|
|
fileToolBar->addAction(new QAction(qtIcon2x, QString("2x"), this));
|
||
|
|
}
|
||
|
|
|
||
|
|
class StandardIcons : public QWidget
|
||
|
|
{
|
||
|
|
public:
|
||
|
|
void paintEvent(QPaintEvent *event)
|
||
|
|
{
|
||
|
|
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 *event)
|
||
|
|
{
|
||
|
|
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::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 *event)
|
||
|
|
{
|
||
|
|
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>();
|
||
|
|
}
|
||
|
|
|
||
|
|
int main(int argc, char **argv)
|
||
|
|
{
|
||
|
|
qputenv("QT_HIGHDPI_AWARE", "1");
|
||
|
|
QApplication app(argc, argv);
|
||
|
|
|
||
|
|
PixmapPainter pixmapPainter;
|
||
|
|
|
||
|
|
// Enable for lots of pixmap drawing
|
||
|
|
pixmapPainter.show();
|
||
|
|
|
||
|
|
Labels label;
|
||
|
|
label.resize(200, 200);
|
||
|
|
label.show();
|
||
|
|
|
||
|
|
MainWindow mainWindow;
|
||
|
|
mainWindow.show();
|
||
|
|
|
||
|
|
StandardIcons icons;
|
||
|
|
icons.resize(510, 510);
|
||
|
|
icons.show();
|
||
|
|
|
||
|
|
Caching caching;
|
||
|
|
caching.resize(300, 300);
|
||
|
|
caching.show();
|
||
|
|
|
||
|
|
Style style;
|
||
|
|
style.show();
|
||
|
|
|
||
|
|
Fonts fonts;
|
||
|
|
fonts.show();
|
||
|
|
|
||
|
|
return app.exec();
|
||
|
|
}
|