1 /*
2 The zlib/libpng License
3
4 Copyright (c) 2005-2007 Phillip Castaneda (pjcast -- www.wreckedgames.com)
5
6 This software is provided 'as-is', without any express or implied warranty. In no event will
7 the authors be held liable for any damages arising from the use of this software.
8
9 Permission is granted to anyone to use this software for any purpose, including commercial
10 applications, and to alter it and redistribute it freely, subject to the following
11 restrictions:
12
13 1. The origin of this software must not be misrepresented; you must not claim that
14 you wrote the original software. If you use this software in a product,
15 an acknowledgment in the product documentation would be appreciated but is
16 not required.
17
18 2. Altered source versions must be plainly marked as such, and must not be
19 misrepresented as being the original software.
20
21 3. This notice may not be removed or altered from any source distribution.
22 */
23 #include "SDL/SDLMouse.h"
24 #include "SDL/SDLInputManager.h"
25 #include "OISException.h"
26 #include "OISEvents.h"
27
28 using namespace OIS;
29
30 //-------------------------------------------------------------------//
SDLMouse(bool buffered)31 SDLMouse::SDLMouse( bool buffered ) : mGrabbed(false), mRegainFocus(false)
32 {
33 mBuffered = buffered;
34 mType = OISMouse;
35 listener = 0;
36 }
37
38 //-------------------------------------------------------------------//
_initialize()39 void SDLMouse::_initialize()
40 {
41 //Clear old state
42 mState.clear();
43 mRegainFocus = false;
44
45 _setGrab(true);
46 _setVisible(false);
47 static_cast<SDLInputManager*>(InputManager::getSingletonPtr())->_setGrabMode(true);
48 }
49
50 //-------------------------------------------------------------------//
~SDLMouse()51 SDLMouse::~SDLMouse()
52 {
53 _setGrab(true);
54 _setVisible(true);
55
56 static_cast<SDLInputManager*>(InputManager::getSingletonPtr())->_setGrabMode(false);
57 }
58
59 //-------------------------------------------------------------------//
capture()60 void SDLMouse::capture()
61 {
62 //Used for going from SDL Button to OIS button
63 static const MouseButtonID ButtonMask[4] = {MB_Left, MB_Left, MB_Middle, MB_Right};
64
65 //Clear old relative values
66 mState.relX = mState.relY = mState.relZ = 0;
67
68 SDL_Event events[OIS_SDL_MOUSE_BUFF];
69 int count = SDL_PeepEvents(events, OIS_SDL_MOUSE_BUFF, SDL_GETEVENT, SDL_MOUSEEVENTMASK);
70
71 bool mouseXYMoved = false;
72 bool mouseZMoved = false;
73 for( int i = 0; i < count; ++i )
74 {
75 switch( events[i].type )
76 {
77 case SDL_MOUSEMOTION: mouseXYMoved = true; break;
78 case SDL_MOUSEBUTTONDOWN:
79 {
80 mRegainFocus = true;
81 int sdlButton = events[i].button.button;
82 if( sdlButton <= SDL_BUTTON_RIGHT )
83 { //Left, Right, or Middle
84 mState.buttons |= (1 << ButtonMask[sdlButton]);
85 if( mBuffered && listener )
86 if( listener->mousePressed(MouseEvent(this,0,mState), ButtonMask[sdlButton]) == false )
87 return;
88 }
89 else
90 { //mouse Wheel
91 mouseZMoved = true;
92 if( sdlButton == SDL_BUTTON_WHEELUP )
93 mState.relZ += 120;
94 else if( sdlButton == SDL_BUTTON_WHEELDOWN )
95 mState.relZ -= 120;
96 }
97 break;
98 }
99 case SDL_MOUSEBUTTONUP:
100 {
101 int sdlButton = events[i].button.button;
102 if( sdlButton <= SDL_BUTTON_RIGHT )
103 { //Left, Right, or Middle
104 mState.buttons &= ~(1 << ButtonMask[sdlButton]);
105 if( mBuffered && listener )
106 if( listener->mouseReleased(MouseEvent(this,0,mState), ButtonMask[sdlButton]) == false )
107 return;
108 }
109 break;
110 }
111 }
112 }
113
114 //Handle X/Y axis move
115 if( mouseXYMoved )
116 {
117 SDL_GetMouseState( &mState.abX, &mState.abY );
118 SDL_GetRelativeMouseState( &mState.relX, &mState.relY );
119
120 if( mBuffered && listener )
121 listener->mouseMoved(MouseEvent(this, 0, mState));
122 }
123 //Handle Z Motion
124 if( mouseZMoved )
125 {
126 mState.abZ += mState.relZ;
127 if( mBuffered && listener )
128 listener->mouseMoved(MouseEvent(this, 0, mState));
129 }
130
131 //Handle Alt-Tabbing
132 SDLInputManager* man = static_cast<SDLInputManager*>(InputManager::getSingletonPtr());
133 if( man->_getGrabMode() == false )
134 {
135 if( mRegainFocus == false && mGrabbed == true )
136 { //We had focus, but must release it now
137 _setGrab(false);
138 _setVisible(true);
139 }
140 else if( mRegainFocus == true && mGrabbed == false )
141 { //We are gaining focus back (mouse clicked in window)
142 _setGrab(true);
143 _setVisible(false);
144 man->_setGrabMode(true); //Notify manager
145 }
146 }
147 }
148
149 //-------------------------------------------------------------------//
setBuffered(bool buffered)150 void SDLMouse::setBuffered(bool buffered)
151 {
152 mBuffered = buffered;
153 }
154
155 //-------------------------------------------------------------------//
_setGrab(bool grabbed)156 void SDLMouse::_setGrab(bool grabbed)
157 {
158 if( grabbed )
159 SDL_WM_GrabInput(SDL_GRAB_ON);
160 else
161 SDL_WM_GrabInput(SDL_GRAB_OFF);
162
163 mGrabbed = grabbed;
164 }
165
166 //-------------------------------------------------------------------//
_setVisible(bool visible)167 void SDLMouse::_setVisible(bool visible)
168 {
169
170 if( visible )
171 SDL_ShowCursor(SDL_ENABLE);
172 else
173 SDL_ShowCursor(SDL_DISABLE);
174 }
175