workspace/plasma/shells/common/wallpaperpreview.cpp

   1 /*
   2  * Copyright 2008  Petri Damsten <damu@iki.fi>
   3  *
   4  * This program is free software; you can redistribute it and/or
   5  * modify it under the terms of the GNU General Public License as
   6  * published by the Free Software Foundation; either version 2 of
   7  * the License, or (at your option) any later version.
   8  *
   9  * This program is distributed in the hope that it will be useful,
  10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12  * GNU General Public License for more details.
  13  *
  14  * You should have received a copy of the GNU General Public License
  15  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  16  */
  17
  18 #include "wallpaperpreview.h"
  19 #include <QPainter>
  20 #include <QPaintEvent>
  21 #include <Plasma/Wallpaper>
  22 #include <Plasma/Svg>
  23
  24 WallpaperPreview::WallpaperPreview(QWidget *parent) : QWidget(parent), m_wallpaper(0)
  25 {
  26     m_wallpaperOverlay = new Plasma::Svg(this);
  27     m_wallpaperOverlay->setImagePath("widgets/monitor");
  28     m_wallpaperOverlay->setContainsMultipleImages(true);
  29 }
  30
  31 WallpaperPreview::~WallpaperPreview()
  32 {
  33 }
  34
  35 void WallpaperPreview::setWallpaper(Plasma::Wallpaper* wallpaper)
  36 {
  37     m_wallpaper = wallpaper;
  38     if (m_wallpaper) {
  39         connect(m_wallpaper, SIGNAL(update(const QRectF &)),
  40                 this, SLOT(updateRect(const QRectF &)));
  41         resizeEvent(0);
  42     }
  43 }
  44
  45 void WallpaperPreview::resizeEvent(QResizeEvent* event)
  46 {
  47     Q_UNUSED(event)
  48     if (m_wallpaper) {
  49         m_wallpaper->setBoundingRect(contentsRect());
  50     }
  51 }
  52
  53 void WallpaperPreview::updateRect(const QRectF& rect)
  54 {
  55     update(rect.toRect());
  56 }
  57
  58 void WallpaperPreview::paintEvent(QPaintEvent* event)
  59 {
  60     QPainter painter(this);
  61     if (m_wallpaper) {
  62         m_wallpaper->paint(&painter, event->rect());
  63         m_wallpaperOverlay->paint(&painter, QRect(QPoint(0,0), size()), "glass");
  64     }
  65 }
  66
  67 #include "wallpaperpreview.moc"