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MaskablePixmapWidget: fixed drawing routine

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This commit is contained in:
krepa098 2014-09-27 15:39:17 +02:00
parent 4d24bd53f2
commit 97b5599651
2 changed files with 8 additions and 11 deletions
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17
widget/maskablepixmapwidget.cpp
View File

@ -16,20 +16,17 @@
#include "maskablepixmapwidget.h"
#include <QPainter>
#include <QPaintEvent>
MaskablePixmapWidget::MaskablePixmapWidget(QWidget *parent, QSize size, QString maskName)
: QWidget(parent)
{
setMinimumSize(size);
setMaximumSize(size);
mask = QPixmap(maskName).scaled(maximumSize(), Qt::IgnoreAspectRatio, Qt::SmoothTransformation);
setFixedSize(size);
mask = QPixmap(maskName).scaled(size, Qt::IgnoreAspectRatio, Qt::SmoothTransformation);
}
void MaskablePixmapWidget::setPixmap(const QPixmap &pmap)
{
pixmap = pmap.scaled(maximumSize(), Qt::KeepAspectRatio, Qt::SmoothTransformation);
pixmap = pmap.scaled(width(), height(), Qt::KeepAspectRatio, Qt::SmoothTransformation);
}
QPixmap MaskablePixmapWidget::getPixmap() const
@ -37,20 +34,20 @@ QPixmap MaskablePixmapWidget::getPixmap() const
return pixmap;
}
void MaskablePixmapWidget::paintEvent(QPaintEvent *ev)
void MaskablePixmapWidget::paintEvent(QPaintEvent *)
{
QPixmap tmp(ev->rect().size());
QPixmap tmp(width(), height());
tmp.fill(Qt::transparent);
QPoint offset((ev->rect().size().width()-pixmap.size().width())/2,(ev->rect().size().height()-pixmap.size().height())/2);
QPoint offset((width() - pixmap.size().width())/2,(height() - pixmap.size().height())/2); // centering the pixmap
QPainter painter(&tmp);
painter.setCompositionMode(QPainter::CompositionMode_Source);
painter.drawPixmap(offset,pixmap);
painter.setCompositionMode(QPainter::CompositionMode_DestinationIn);
painter.drawPixmap(0,0,mask);
painter.end();
painter.begin(this);
painter.drawPixmap(0,0,tmp);
}

2
widget/maskablepixmapwidget.h
View File

@ -32,7 +32,7 @@ signals:
void clicked();
protected:
virtual void paintEvent(QPaintEvent *ev);
virtual void paintEvent(QPaintEvent *);
virtual void mousePressEvent(QMouseEvent *);
private: