/*************************************************************************** * Copyright (C) 2010 by Till Theato (root@ttill.de) * * * * This program 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 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 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 * ***************************************************************************/ #ifndef MONITORSCENE_H #define MONITORSCENE_H #include <QtCore> #include <QGraphicsScene> class Render; 00030 class MonitorScene : public QGraphicsScene { Q_OBJECT public: MonitorScene(Render *renderer, QObject* parent = 0); /** @brief Sets m_view to this scenes view. */ void setUp(); /** @brief Enables/Disables the scene for usage (background still updated). * @param enabled (default = true) */ void setEnabled(bool enabled = true); /** @brief Makes the background frame fit again after the profile changed (and therefore the resolution might have changed). */ void resetProfile(); protected: virtual void mousePressEvent(QGraphicsSceneMouseEvent *event); virtual void mouseMoveEvent(QGraphicsSceneMouseEvent *event); virtual void mouseReleaseEvent(QGraphicsSceneMouseEvent *event); /** @brief Adds a keyframe if scene is disabled. */ virtual void mouseDoubleClickEvent(QGraphicsSceneMouseEvent *event); /** @brief Reimplemented to allow zooming using ctrl + mouse wheel. */ virtual void wheelEvent(QGraphicsSceneWheelEvent *event); public slots: /** @brief Sets the backgrounditem's pixmap to m_backgroundImage (only if a certain amount of time has passed since last update). */ void slotUpdateBackground(); /** @brief Sets the scene's zoom level. * @param value zoom level with 100 = show frame at original size */ void slotZoom(int value); /** @brief Makes the zoom level fit the viewport's size. */ void slotZoomFit(); /** @brief Shows the frame at it's original size and center. */ void slotZoomOriginal(); /** @brief Zooms in by @param by%. */ void slotZoomIn(int by = 1); /** @brief Zooms out by @param by%. */ void slotZoomOut(int by = 1); private slots: /** @brief Sets m_backgroundImage to @param image and requests updating the background item. */ void slotSetBackgroundImage(const QImage &image); private: Render *m_renderer; QGraphicsPixmapItem *m_background; QGraphicsRectItem *m_frameBorder; QTime m_lastUpdate; QGraphicsView *m_view; QImage m_backgroundImage; bool m_enabled; qreal m_zoom; bool m_groupMove; QPointF m_lastPos; signals: void zoomChanged(int); void addKeyframe(); }; #endif