Mega Code Archive
Extends QStyle
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#include <QtGui>
#include <QApplication>
class MyPushButton : public QPushButton
{
public:
MyPushButton(QWidget *parent = 0);
void paintEvent(QPaintEvent *);
};
MyPushButton::MyPushButton(QWidget *parent)
: QPushButton(parent)
{
}
void MyPushButton::paintEvent(QPaintEvent *)
{
QStyleOptionButton option;
option.initFrom(this);
option.state = isDown() ? QStyle::State_Sunken : QStyle::State_Raised;
if (isDefault())
option.features |= QStyleOptionButton::DefaultButton;
option.text = text();
option.icon = icon();
QPainter painter(this);
style()->drawControl(QStyle::CE_PushButton, &option, &painter, this);
}
class MyStyle : public QStyle
{
public:
MyStyle();
void drawPrimitive(PrimitiveElement element, const QStyleOption *option,
QPainter *painter, const QWidget *widget);
};
MyStyle::MyStyle()
{
QStyleOptionFrame *option;
if (const QStyleOptionFrame *frameOption =
qstyleoption_cast<const QStyleOptionFrame *>(option)) {
QStyleOptionFrameV2 frameOptionV2(*frameOption);
// draw the frame using frameOptionV2
}
if (const QStyleOptionProgressBar *progressBarOption =
qstyleoption_cast<const QStyleOptionProgressBar *>(option)) {
QStyleOptionProgressBarV2 progressBarV2(*progressBarOption);
// draw the progress bar using progressBarV2
}
if (const QStyleOptionTab *tabOption =
qstyleoption_cast<const QStyleOptionTab *>(option)) {
QStyleOptionTabV2 tabV2(*tabOption);
// draw the tab using tabV2
}
}
void MyStyle::drawPrimitive(PrimitiveElement element,
const QStyleOption *option,
QPainter *painter,
const QWidget *widget)
{
if (element == PE_FrameFocusRect) {
const QStyleOptionFocusRect *focusRectOption =
qstyleoption_cast<const QStyleOptionFocusRect *>(option);
if (focusRectOption) {
// ...
}
}
// ...
}
int main(int argc, char *argv[])
{
QApplication app(argc, argv);
MyPushButton button;
button.show();
return app.exec();
}
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