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feat: Repaint the skin of a custom control, and the painting is complete

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MyStyle has completed, QStylePainter's inheritance rewrite has not yet started
This commit is contained in:
muli
2020-02-20 00:47:18 +08:00
parent 158deb7c80
commit 77115da29d
6 changed files with 303 additions and 11 deletions
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109
QtMyStyleEx/QtExample03/QtStyleEx/mystyle.cpp
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@@ -30,6 +30,46 @@ MyStyle::MyStyle()
}
void MyStyle::drawPrimitive(MyStyle::PrimitiveElement pe, const QStyleOption *opt, QPainter *p, const QWidget *w) const
{
proxy()->drawPrimitive(static_cast<QStyle::PrimitiveElement>(pe), opt, p, w);
}
void MyStyle::drawControl(MyStyle::ControlElement element, const QStyleOption *opt, QPainter *p, const QWidget *w) const
{
proxy()->drawControl(static_cast<QStyle::ControlElement>(element), opt, p, w);
}
QRect MyStyle::subElementRect(MyStyle::SubElement subElement, const QStyleOption *option, const QWidget *widget) const
{
return proxy()->subElementRect(static_cast<QStyle::SubElement>(subElement), option, widget);
}
//void MyStyle::drawComplexControl(MyStyle::ComplexControl cc, const QStyleOptionComplex *opt, QPainter *p, const QWidget *widget) const
//{
//}
//QRect MyStyle::subControlRect(MyStyle::ComplexControl cc, const QStyleOptionComplex *opt, SubControl sc, const QWidget *widget) const
//{
// return QRect();
//}
int MyStyle::pixelMetric(MyStyle::PixelMetric metric, const QStyleOption *option, const QWidget *widget) const
{
return proxy()->pixelMetric(static_cast<QStyle::PixelMetric>(metric), option, widget);
}
//QSize MyStyle::sizeFromContents(MyStyle::ContentsType ct, const QStyleOption *opt, const QSize &contentsSize, const QWidget *w) const
//{
// return QSize();
//}
//int MyStyle::styleHint(MyStyle::StyleHint stylehint, const QStyleOption *opt, const QWidget *widget, QStyleHintReturn *returnData) const
//{
// return 0;
//}
void MyStyle::polish(QWidget *widget)
{
QCommonStyle::polish(widget);
@@ -40,8 +80,24 @@ void MyStyle::unpolish(QWidget *widget)
QCommonStyle::unpolish(widget);
}
void MyStyle::drawPrimitive(QStyle::PrimitiveElement pe, const QStyleOption *opt, QPainter *p, const QWidget *w) const
{
switch (pe) {
case PE_SwitchButtonGroove: {
if (const QStyleOptionButton* swtchBtn = qstyleoption_cast<const QStyleOptionButton*>(opt)) {
p->setBrush(Qt::red);
p->drawRoundedRect(swtchBtn->rect, 8, 8);
}
}
break;
case PE_SwitchButtonHandle: {
}
break;
default:
break;
}
QCommonStyle::drawPrimitive(pe, opt, p, w);
}
@@ -70,6 +126,19 @@ void MyStyle::drawControl(QStyle::ControlElement element, const QStyleOption *op
p->fillRect(opt->rect, QColor("#de6161"));
return;
}
case CE_SwitchButton: {
if (const QStyleOptionButton *switchBtn = qstyleoption_cast<const QStyleOptionButton *>(opt)) {
QStyleOptionButton option = *switchBtn;
option.palette = switchBtn->palette;
option.rect = subElementRect(SE_SwitchButtonGroove, opt, w);
drawPrimitive(PE_SwitchButtonGroove, &option, p, w);
option.rect = subElementRect(SE_SwitchButtonHandle, opt, w);
drawPrimitive(PE_SwitchButtonHandle, &option, p, w);
}
break;
}
default:
break;
}
@@ -79,6 +148,37 @@ void MyStyle::drawControl(QStyle::ControlElement element, const QStyleOption *op
QRect MyStyle::subElementRect(QStyle::SubElement subElement, const QStyleOption *option, const QWidget *widget) const
{
switch (subElement) {
case SE_SwitchButtonGroove: {
if (const QStyleOptionButton* switchBtn = qstyleoption_cast<const QStyleOptionButton*>(option))
return switchBtn->rect;
}
break;
case SE_SwitchButtonHandle: {
if (const QStyleOptionButton* switchBtn = qstyleoption_cast<const QStyleOptionButton*>(option)) {
int handleWidth = pixelMetric(PM_SwitchButtonHandleWidth, option, widget);
//pixelMetric(PM_SwitchButtonHandleWidth, option, widget);
QRect rectHandle(0, 0, 0, 0);
rectHandle.setHeight(switchBtn->rect.height());
if (switchBtn->rect.width() / 2.0 <= handleWidth)
rectHandle.setWidth(switchBtn->rect.width() / 2.0);
else
rectHandle.setWidth(handleWidth);
if (switchBtn->state & QStyle::State_On)
rectHandle.moveRight(switchBtn->rect.right());
else
rectHandle.moveLeft(switchBtn->rect.left());
return rectHandle;
}
}
break;
default:
break;
}
return QCommonStyle::subElementRect(subElement, option, widget);
}
@@ -94,6 +194,15 @@ QRect MyStyle::subControlRect(QStyle::ComplexControl cc, const QStyleOptionCompl
int MyStyle::pixelMetric(QStyle::PixelMetric metric, const QStyleOption *option, const QWidget *widget) const
{
switch (metric) {
case PM_SwitchButtonHandleWidth:
return 30;
case PM_SwithcButtonHandleHeight:
return 12;
default:
break;
}
return QCommonStyle::pixelMetric(metric, option, widget);
}