1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
|
/* ScummVM - Graphic Adventure Engine
*
* ScummVM is the legal property of its developers, whose names
* are too numerous to list here. Please refer to the COPYRIGHT
* file distributed with this source distribution.
*
* 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 BACKENDS_GRAPHICS_SDL_SDLGRAPHICS_H
#define BACKENDS_GRAPHICS_SDL_SDLGRAPHICS_H
#include "common/rect.h"
class SdlEventSource;
/**
* Base class for a SDL based graphics manager.
*
* It features a few extra a few extra features required by SdlEventSource.
* FIXME/HACK:
* Note it does not inherit from GraphicsManager to avoid a diamond inheritance
* in the current OpenGLSdlGraphicsManager.
*/
class SdlGraphicsManager {
public:
SdlGraphicsManager(SdlEventSource *source);
virtual ~SdlGraphicsManager();
/**
* Notify the graphics manager that the graphics needs to be redrawn, since
* the application window was modified.
*
* This is basically called when SDL_VIDEOEXPOSE was received.
*/
virtual void notifyVideoExpose() = 0;
/**
* Notify the graphics manager about an resize event.
*
* It is noteworthy that the requested width/height should actually be set
* up as is and not changed by the graphics manager, since else it might
* lead to odd behavior for certain window managers.
*
* It is only required to overwrite this method in case you want a
* resizable window. The default implementation just does nothing.
*
* @param width Requested window width.
* @param height Requested window height.
*/
virtual void notifyResize(const uint width, const uint height) {}
/**
* Transforms real screen coordinates into the current active screen
* coordinates (may be either game screen or overlay).
*
* @param point Mouse coordinates to transform.
*/
virtual void transformMouseCoordinates(Common::Point &point) = 0;
/**
* Notifies the graphics manager about a position change according to the
* real screen coordinates.
*
* @param mouse Mouse position.
*/
virtual void notifyMousePos(Common::Point mouse) = 0;
protected:
void initEventSource();
void deinitEventSource();
SdlEventSource *_eventSource;
};
#endif
|
