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| #ifndef MAINWINDOW_H
#define MAINWINDOW_H
#include <QtGui/QMainWindow>
#include <QtGui/QProxyStyle>
#include <QtGui/QStyleFactory>
#include <QtGui/QApplication>
#include <QtGui/QPainter>
#include <QtGui/QPushButton>
#include <QtGui/QGridLayout>
#include <qdebug.h>
#include "time.h"
class TestStyle : public QProxyStyle
{
public:
TestStyle() : QProxyStyle(QStyleFactory::create("TestStyle")) {}
void drawControl(
ControlElement element,
const QStyleOption* option,
QPainter* painter,
const QWidget* widget = 0) const
{
if(element == QStyle::CE_PushButton)
{
QRect r = widget->rect();
painter->setPen(QPen(Qt::blue, 2));
painter->setBrush(QBrush(Qt::red));
painter->drawRoundedRect(r, 5, 5);
painter->setPen(QPen(Qt::yellow));
painter->drawText(r, Qt::AlignCenter, "A");
}
else
QProxyStyle::drawControl(element, option, painter, widget);
}
};
class MainWindow : public QMainWindow
{
Q_OBJECT
private:
bool stylesheet_selected;
QString test_stylesheet;
TestStyle* test_style;
private slots:
void changeStyle()
{
double debut = clock();
if(stylesheet_selected)
{
qApp->setStyleSheet(test_stylesheet);
}
else
{
qApp->setStyle(test_style);
qApp->setStyleSheet("");
}
stylesheet_selected = !stylesheet_selected;
qDebug() << (stylesheet_selected ? "stylesheet" : "style") << (clock() - debut);
}
public:
MainWindow(QWidget *parent = 0) : QMainWindow(parent)
{
// init styles
stylesheet_selected = true;
test_style = new TestStyle();
test_stylesheet = "QPushButton { color:yellow; background:red; border: 2px solid blue }";
changeStyle();
QWidget* content = new QWidget();
QGridLayout* layout = new QGridLayout(content);
for(int i=0; i<50; ++i)
{
for(int j=0; j<50; ++j)
{
QPushButton* b = new QPushButton("A", this);
const int s = 10;
b->resize(s, s);
b->setMinimumSize(s, s);
b->setMaximumSize(s, s);
layout->addWidget(b, i, j);
connect(b, SIGNAL(clicked()), this, SLOT(changeStyle()));
}
}
content->setLayout(layout);
setCentralWidget(content);
}
};
#endif // MAINWINDOW_H |
