kwin/kcmkwin/kwinscreenedges/screenpreviewwidget.cpp
Martin Gräßlin a4a436807f Make the ScreenPreviewWidget useable again
Removes the functionality for Plasma::Wallpapers as that doesn't exist
any more and is not needed by the Screenedges KCM. The KCM still has
way too many functionality, but that can stay for the moment as it's
probably best to reimplement the monitor and the actions in QML.
2013-09-29 10:27:48 +02:00

161 lines
4.2 KiB
C++

/* This file is part of the KDE libraries
Copyright (C) 2009 Marco Martin <notmart@gmail.com>
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Library General Public
License as published by the Free Software Foundation; either
version 2 of the License, or (at your option) any later version.
This library 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
Library General Public License for more details.
You should have received a copy of the GNU Library General Public License
along with this library; see the file COPYING.LIB. If not, write to
the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
Boston, MA 02110-1301, USA.
*/
#include "screenpreviewwidget.h"
#include <QResizeEvent>
#include <QPaintEvent>
#include <QPainter>
#include <KDebug>
#include <KUrl>
#include <Plasma/FrameSvg>
class ScreenPreviewWidgetPrivate
{
public:
ScreenPreviewWidgetPrivate(ScreenPreviewWidget *screen)
: q(screen),
ratio(1)
{}
~ScreenPreviewWidgetPrivate()
{}
void updateRect(const QRectF& rect)
{
q->update(rect.toRect());
}
void updateScreenGraphics()
{
int bottomElements = screenGraphics->elementSize("base").height() + screenGraphics->marginSize(Plasma::Types::BottomMargin);
QRect bounds(QPoint(0,0), QSize(q->size().width(), q->height() - bottomElements));
QSize monitorSize(q->size().width(), q->size().width()/ratio);
monitorSize.scale(bounds.size(), Qt::KeepAspectRatio);
if (monitorSize.isEmpty()) {
return;
}
monitorRect = QRect(QPoint(0,0), monitorSize);
monitorRect.moveCenter(bounds.center());
screenGraphics->resizeFrame(monitorRect.size());
previewRect = screenGraphics->contentsRect().toRect();
previewRect.moveCenter(bounds.center());
}
ScreenPreviewWidget *q;
Plasma::FrameSvg *screenGraphics;
QPixmap preview;
QRect monitorRect;
qreal ratio;
QRect previewRect;
};
ScreenPreviewWidget::ScreenPreviewWidget(QWidget *parent)
: QWidget(parent),
d(new ScreenPreviewWidgetPrivate(this))
{
d->screenGraphics = new Plasma::FrameSvg(this);
d->screenGraphics->setImagePath("widgets/monitor");
d->updateScreenGraphics();
}
ScreenPreviewWidget::~ScreenPreviewWidget()
{
delete d;
}
void ScreenPreviewWidget::setPreview(const QPixmap &preview)
{
d->preview = preview;
update();
}
const QPixmap ScreenPreviewWidget::preview() const
{
return d->preview;
}
void ScreenPreviewWidget::setRatio(const qreal ratio)
{
d->ratio = ratio;
d->updateScreenGraphics();
}
qreal ScreenPreviewWidget::ratio() const
{
return d->ratio;
}
QRect ScreenPreviewWidget::previewRect() const
{
return d->previewRect;
}
void ScreenPreviewWidget::resizeEvent(QResizeEvent *e)
{
Q_UNUSED(e)
d->updateScreenGraphics();
}
void ScreenPreviewWidget::paintEvent(QPaintEvent *event)
{
if (d->monitorRect.size().isEmpty()) {
return;
}
QPainter painter(this);
QPoint standPosition(d->monitorRect.center().x() - d->screenGraphics->elementSize("base").width()/2, d->previewRect.bottom());
d->screenGraphics->paint(&painter, QRect(standPosition, d->screenGraphics->elementSize("base")), "base");
d->screenGraphics->paintFrame(&painter, d->monitorRect.topLeft());
painter.save();
if (!d->preview.isNull()) {
painter.setRenderHint(QPainter::SmoothPixmapTransform);
painter.drawPixmap(d->previewRect, d->preview, d->preview.rect());
}
painter.restore();
d->screenGraphics->paint(&painter, d->previewRect, "glass");
}
void ScreenPreviewWidget::dropEvent(QDropEvent *e)
{
if (!KUrl::List::canDecode(e->mimeData()))
return;
const KUrl::List uris(KUrl::List::fromMimeData(e->mimeData()));
if (!uris.isEmpty()) {
// TODO: Download remote file
if (uris.first().isLocalFile())
emit imageDropped(uris.first().path());
}
}
#include "moc_screenpreviewwidget.cpp"