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styles example: Use QImage instead of QPixmap in NorwegianWoodStyle

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Using QImage allows creating the style before the application has
been created, and is the more modern API.

No changes to the documentation needed.

Change-Id: Ifa0e5fa1113802fca18fbd45bb3c0a5ba1dbfeab
Reviewed-by: Andreas Aardal Hanssen <andreas@hanssen.name>
This commit is contained in:
Tor Arne Vestbø 2019-06-20 14:47:12 +02:00
parent 530c6903a4
commit 244ff33119
2 changed files with 8 additions and 7 deletions
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13
examples/widgets/widgets/styles/norwegianwoodstyle.cpp
View File

@ -64,9 +64,9 @@ void NorwegianWoodStyle::polish(QPalette &palette)
QColor beige(236, 182, 120);
QColor slightlyOpaqueBlack(0, 0, 0, 63);
QPixmap backgroundImage(":/images/woodbackground.png");
QPixmap buttonImage(":/images/woodbutton.png");
QPixmap midImage = buttonImage;
QImage backgroundImage(":/images/woodbackground.png");
QImage buttonImage(":/images/woodbutton.png");
QImage midImage = buttonImage.convertToFormat(QImage::Format_RGB32);
QPainter painter;
painter.begin(&midImage);
@ -311,11 +311,12 @@ void NorwegianWoodStyle::drawControl(ControlElement element,
//! [37]
void NorwegianWoodStyle::setTexture(QPalette &palette, QPalette::ColorRole role,
//! [37] //! [38]
const QPixmap &pixmap)
const QImage &image)
{
for (int i = 0; i < QPalette::NColorGroups; ++i) {
QColor color = palette.brush(QPalette::ColorGroup(i), role).color();
palette.setBrush(QPalette::ColorGroup(i), role, QBrush(color, pixmap));
QBrush brush(image);
brush.setColor(palette.brush(QPalette::ColorGroup(i), role).color());
palette.setBrush(QPalette::ColorGroup(i), role, brush);
}
}
//! [38]

2
examples/widgets/widgets/styles/norwegianwoodstyle.h
View File

@ -80,7 +80,7 @@ public:
private:
static void setTexture(QPalette &palette, QPalette::ColorRole role,
const QPixmap &pixmap);
const QImage &image);
static QPainterPath roundRectPath(const QRect &rect);
};
//! [0]