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TransparentWidget.cpp 2.49 KiB
/*
* Copyright (C) 2004-2005 Savoir-Faire Linux inc.
* Author: Jean-Philippe Barrette-LaPierre
* (jean-philippe.barrette-lapierre@savoirfairelinux.com)
*
* This is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as
* published by the Free Software Foundation; either version 2,
* or (at your option) any later version.
*
* This is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public
* License along with dpkg; if not, write to the Free Software
* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
#include <qbitmap.h>
#include <qcolor.h>
#include <qdragobject.h>
#include <qmime.h>
#include <iostream>
#include "DebugOutput.hpp"
#include "TransparentWidget.hpp"
TransparentWidget::TransparentWidget(const QString &pixmap,
QWidget* parent)
: QLabel(parent)
{
mImage = transparize(pixmap);
setPixmap(mImage);
updateMask(this, mImage);
resize(mImage.size());
}
TransparentWidget::TransparentWidget(QWidget* parent)
: QLabel(parent)
{}
void
TransparentWidget::updateMask(QWidget *w, QPixmap image)
{
#ifdef QT3_SUPPORT
if(image.hasAlpha()) {
w->setMask(image.mask());
}
#else
if(image.mask()) {
w->setMask(*image.mask());
}
#endif
}
QPixmap
TransparentWidget::retreive(const QString &image)
{
return QPixmap::fromMimeSource(image);
}
QPixmap
TransparentWidget::transparize(const QSize &)
{
/*
QImage image(size, QImage::Format_RGB32);
QColor c(12,32,35,123);
image.fill(c.rgb());
QPixmap p(QPixmap::fromImage(image));
p.setMask(p.createHeuristicMask());
//p.setMask(p.alphaChannel());
*/
return QPixmap();
}
TransparentWidget::~TransparentWidget()
{}
QPixmap
TransparentWidget::transparize(const QString &image)
{
#ifdef QT3_SUPPORT
QPixmap p(retreive(image));
if (!p.mask()) {
if (p.hasAlphaChannel()) {
p.setMask(p.alphaChannel());
}
else {
p.setMask(p.createHeuristicMask());
}
}
#else
// QPixmap p(QPixmap::fromMimeSource(image));
QImage img(QImage::fromMimeSource(image));
QPixmap p;
p.convertFromImage(img);
QBitmap bm;
if (img.hasAlphaBuffer()) {
bm = img.createAlphaMask();
}
else {
bm = img.createHeuristicMask();
}
p.setMask(bm);
#endif
return p;
}