mirror of
https://github.com/crystalidea/qt6windows7.git
synced 2025-01-23 20:34:31 +08:00
97 lines
2.2 KiB
C++
97 lines
2.2 KiB
C++
// Copyright (C) 2020 The Qt Company Ltd.
|
|
// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR GPL-3.0-only WITH Qt-GPL-exception-1.0
|
|
|
|
#include "chiptester.h"
|
|
#include "chip.h"
|
|
|
|
#include <QtGui>
|
|
#include <QScrollBar>
|
|
#ifndef QT_NO_OPENGL
|
|
#include <QtOpenGL>
|
|
#endif
|
|
|
|
ChipTester::ChipTester(QWidget *parent)
|
|
: QGraphicsView(parent),
|
|
npaints(0)
|
|
{
|
|
resize(400, 300);
|
|
setHorizontalScrollBarPolicy(Qt::ScrollBarAlwaysOff);
|
|
setVerticalScrollBarPolicy(Qt::ScrollBarAlwaysOff);
|
|
setFrameStyle(0);
|
|
setTransformationAnchor(NoAnchor);
|
|
|
|
populateScene();
|
|
setScene(scene);
|
|
|
|
setWindowTitle(tr("Chip Example"));
|
|
}
|
|
|
|
void ChipTester::setAntialias(bool enabled)
|
|
{
|
|
setRenderHint(QPainter::Antialiasing, enabled);
|
|
}
|
|
|
|
void ChipTester::setOperation(Operation operation)
|
|
{
|
|
this->operation = operation;
|
|
}
|
|
|
|
void ChipTester::runBenchmark()
|
|
{
|
|
npaints = 0;
|
|
timerId = startTimer(0);
|
|
eventLoop.exec();
|
|
killTimer(timerId);
|
|
}
|
|
|
|
void ChipTester::paintEvent(QPaintEvent *event)
|
|
{
|
|
QGraphicsView::paintEvent(event);
|
|
if (++npaints == 50)
|
|
eventLoop.quit();
|
|
}
|
|
|
|
void ChipTester::timerEvent(QTimerEvent *)
|
|
{
|
|
switch (operation) {
|
|
case Rotate360:
|
|
rotate(1);
|
|
break;
|
|
case ZoomInOut: {
|
|
qreal s = 0.05 + (npaints / 20.0);
|
|
setTransform(QTransform().scale(s, s));
|
|
break;
|
|
}
|
|
case Translate: {
|
|
int offset = horizontalScrollBar()->minimum()
|
|
+ (npaints % (horizontalScrollBar()->maximum() - horizontalScrollBar()->minimum()));
|
|
horizontalScrollBar()->setValue(offset);
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
|
|
void ChipTester::populateScene()
|
|
{
|
|
scene = new QGraphicsScene;
|
|
|
|
QImage image(":/qt4logo.png");
|
|
|
|
// Populate scene
|
|
int xx = 0;
|
|
for (int i = -1100; i < 1100; i += 110) {
|
|
++xx;
|
|
int yy = 0;
|
|
for (int j = -700; j < 700; j += 70) {
|
|
++yy;
|
|
qreal x = (i + 1100) / 2200.0;
|
|
qreal y = (j + 700) / 1400.0;
|
|
|
|
QColor color(image.pixel(int(image.width() * x), int(image.height() * y)));
|
|
QGraphicsItem *item = new Chip(color, xx, yy);
|
|
item->setPos(QPointF(i, j));
|
|
scene->addItem(item);
|
|
}
|
|
}
|
|
}
|