1/***************************************************************************
2 * Copyright (C) 2010 by Till Theato (root@ttill.de) *
3 * *
4 * This program is free software; you can redistribute it and/or modify *
5 * it under the terms of the GNU General Public License as published by *
6 * the Free Software Foundation; either version 2 of the License, or *
7 * (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, write to the *
16 * Free Software Foundation, Inc., *
17 * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA *
18 ***************************************************************************/
19
20
21#ifndef MONITORSCENE_H
22#define MONITORSCENE_H
23
24#include <QtCore>
25#include <QGraphicsScene>
26
27class Render;
28
29
30class MonitorScene : public QGraphicsScene
31{
32 Q_OBJECT
33public:
34 explicit MonitorScene(Render *renderer, QObject* parent = 0);
35
36 /** @brief Sets m_view to this scenes view. */
37 void setUp();
38
39 /** @brief Enables/Disables the scene for usage (background still updated).
40 * @param enabled (default = true) */
41 void setEnabled(bool enabled = true);
42
43 /** @brief Makes the background frame fit again after the profile changed (and therefore the resolution might have changed). */
44 void resetProfile();
45
46 /** @brief Reset scene size. */
47 void cleanup();
48
49 /** @brief Center view on frame border. */
50 void centerView();
51
52protected:
53 void mousePressEvent(QGraphicsSceneMouseEvent *event);
54 void mouseMoveEvent(QGraphicsSceneMouseEvent *event);
55 void mouseReleaseEvent(QGraphicsSceneMouseEvent *event);
56 /** @brief Adds a keyframe if scene is disabled. */
57 void mouseDoubleClickEvent(QGraphicsSceneMouseEvent *event);
58 /** @brief Reimplemented to allow zooming using ctrl + mouse wheel. */
59 void wheelEvent(QGraphicsSceneWheelEvent *event);
60
61public slots:
62 /** @brief Sets the backgrounditem's pixmap to m_backgroundImage (only if a certain amount of time has passed since last update). */
63 void slotUpdateBackground();
64
65 /** @brief Sets the scene's zoom level.
66 * @param value zoom level with 100 = show frame at original size */
67 void slotZoom(int value);
68 /** @brief Makes the zoom level fit the viewport's size. */
69 void slotZoomFit();
70 /** @brief Shows the frame at it's original size and center. */
71 void slotZoomOriginal();
72 /** @brief Zooms in by @param by%. */
73 void slotZoomIn(int by = 1);
74 /** @brief Zooms out by @param by%. */
75 void slotZoomOut(int by = 1);
76
77private slots:
78 /** @brief Sets m_backgroundImage to @param image and requests updating the background item. */
79 void slotSetBackgroundImage(const QImage &image);
80
81private:
82 Render *m_renderer;
83 QGraphicsPixmapItem *m_background;
84 QGraphicsRectItem *m_frameBorder;
85 QTime m_lastUpdate;
86 QGraphicsView *m_view;
87 QImage m_backgroundImage;
88 bool m_enabled;
89 qreal m_zoom;
90 bool m_groupMove;
91 QPointF m_lastPos;
92
93signals:
94 void zoomChanged(int);
95 void addKeyframe();
96};
97
98#endif
99