mirror of
https://bitbucket.org/smil3y/kde-extraapps.git
synced 2025-02-23 18:32:53 +00:00
100 lines
2.9 KiB
C++
100 lines
2.9 KiB
C++
/*
|
|
* Copyright (C) 1997-2002 Richard J. Moore <rich@kde.org>
|
|
* Copyright (C) 2002-2010 Aaron J. Seigo <aseigo@kde.org>
|
|
*
|
|
* This program is free software; you can redistribute it and/or modify
|
|
* it under the terms of the GNU Lesser General Public License as published by
|
|
* the Free Software Foundation; either version 2 of the License, or
|
|
* (at your option) any later version.
|
|
*
|
|
* This program 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 Lesser General Public License
|
|
* along with this program; if not, write to the Free Software
|
|
* Foundation, Inc., 51 Franklin Street, Fifth Floor,
|
|
* Boston, MA 02110-1301, USA.
|
|
*/
|
|
|
|
#include "ksnapshotpreview.h"
|
|
|
|
#include <QPainter>
|
|
#include <QtGui/qevent.h>
|
|
#include <QPixmap>
|
|
|
|
#include <KDebug>
|
|
#include <KGlobalSettings>
|
|
|
|
#include "expblur.cpp"
|
|
|
|
KSnapshotPreview::KSnapshotPreview(QWidget *parent)
|
|
: QLabel(parent)
|
|
{
|
|
setAlignment(Qt::AlignHCenter | Qt::AlignVCenter);
|
|
setCursor(Qt::OpenHandCursor);
|
|
}
|
|
|
|
KSnapshotPreview::~KSnapshotPreview()
|
|
{
|
|
}
|
|
|
|
void KSnapshotPreview::setPreview(const QPixmap &pm)
|
|
{
|
|
static const int BLUR_PAD = 6;
|
|
static const int BLUR_RADIUS = 2;
|
|
QPixmap pixmap = pm.scaled(width() - BLUR_PAD, height() - BLUR_PAD, Qt::KeepAspectRatio, Qt::SmoothTransformation );
|
|
|
|
QImage blur(pixmap.size() + QSize(BLUR_PAD, BLUR_PAD), QImage::Format_ARGB32);
|
|
QRect blurRect = QRect(QPoint(BLUR_PAD / 2, BLUR_PAD / 2), pixmap.size());
|
|
blur.fill(Qt::transparent);
|
|
//kDebug() << blur.size() << blurRect << pixmap.size();
|
|
|
|
const QColor color = qGray(palette().color(QPalette::Base).rgb()) < 192 ? Qt::white : Qt::black;
|
|
|
|
{
|
|
QPainter p(&blur);
|
|
p.fillRect(blurRect, color);
|
|
p.end();
|
|
}
|
|
|
|
// apply blur for the thumbnail shadow
|
|
expblur<16, 7>(blur, BLUR_RADIUS);
|
|
|
|
{
|
|
QPainter p(&blur);
|
|
p.setCompositionMode(QPainter::CompositionMode_SourceIn);
|
|
p.fillRect(blur.rect(), color);
|
|
p.fillRect(QRect(blurRect.topLeft(), pixmap.size()), Qt::transparent);
|
|
p.setCompositionMode(QPainter::CompositionMode_SourceOver);
|
|
p.drawPixmap(QRect(blurRect.topLeft(), pixmap.size()), pixmap);
|
|
p.end();
|
|
}
|
|
|
|
setPixmap(QPixmap::fromImage(blur));
|
|
}
|
|
|
|
void KSnapshotPreview::mousePressEvent(QMouseEvent * e)
|
|
{
|
|
if ( e->button() == Qt::LeftButton )
|
|
mClickPt = e->pos();
|
|
}
|
|
|
|
void KSnapshotPreview::mouseMoveEvent(QMouseEvent * e)
|
|
{
|
|
if (mClickPt != QPoint(0, 0) &&
|
|
(e->pos() - mClickPt).manhattanLength() > KGlobalSettings::dndEventDelay())
|
|
{
|
|
mClickPt = QPoint(0, 0);
|
|
emit startDrag();
|
|
}
|
|
}
|
|
|
|
void KSnapshotPreview::mouseReleaseEvent(QMouseEvent * /*e*/)
|
|
{
|
|
mClickPt = QPoint(0, 0);
|
|
}
|
|
|
|
#include "moc_ksnapshotpreview.cpp"
|
|
|