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#include <lib/gui/epixmap.h>
#include <lib/gdi/epng.h>
#include <lib/gui/ewidgetdesktop.h>
ePixmap::ePixmap(eWidget *parent)
:eWidget(parent), m_alphatest(false), m_scale(false)
{
}
void ePixmap::setAlphatest(int alphatest)
{
m_alphatest = alphatest;
setTransparent(alphatest);
}
void ePixmap::setScale(int scale)
{
if (m_scale != scale)
{
m_scale = scale;
invalidate();
}
}
void ePixmap::setPixmap(gPixmap *pixmap)
{
m_pixmap = pixmap;
event(evtChangedPixmap);
}
void ePixmap::setPixmap(ePtr<gPixmap> &pixmap)
{
m_pixmap = pixmap;
event(evtChangedPixmap);
}
void ePixmap::setPixmapFromFile(const char *filename)
{
loadPNG(m_pixmap, filename);
if (!m_pixmap)
{
eDebug("ePixmap::setPixmapFromFile: loadPNG failed");
return;
}
// TODO: This only works for desktop 0
getDesktop(0)->makeCompatiblePixmap(*m_pixmap);
event(evtChangedPixmap);
}
void ePixmap::checkSize()
{
/* when we have no pixmap, or a pixmap of different size, we need
to enable transparency in any case. */
if (m_pixmap && m_pixmap->size() == size() && !m_alphatest)
setTransparent(0);
else
setTransparent(1);
/* fall trough. */
}
int ePixmap::event(int event, void *data, void *data2)
{
switch (event)
{
case evtPaint:
{
ePtr<eWindowStyle> style;
getStyle(style);
// we don't clear the background before because of performance reasons.
// when the pixmap is too small to fit the whole widget area, the widget is
// transparent anyway, so the background is already painted.
// eWidget::event(event, data, data2);
gPainter &painter = *(gPainter*)data2;
if (m_pixmap)
{
int flags = 0;
if (m_alphatest == 0)
flags = 0;
else if (m_alphatest == 1)
flags = gPainter::BT_ALPHATEST;
else if (m_alphatest == 2)
flags = gPainter::BT_ALPHABLEND;
if (m_scale)
painter.blitScale(m_pixmap, eRect(ePoint(0, 0), size()), eRect(), flags);
else
painter.blit(m_pixmap, ePoint(0, 0), eRect(), flags);
}
return 0;
}
case evtChangedPixmap:
checkSize();
invalidate();
return 0;
case evtChangedSize:
checkSize();
/* fall trough. */
default:
return eWidget::event(event, data, data2);
}
}
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