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source: OGRE/trunk/ogrenew/OgreMain/src/OgreEventDispatcher.cpp @ 657

Revision 657, 8.3 KB checked in by mattausch, 19 years ago (diff)
added ogre dependencies and patched ogre sources

Line
1	/*
2	-----------------------------------------------------------------------------
3	This source file is part of OGRE
4	(Object-oriented Graphics Rendering Engine)
5	For the latest info, see http://www.ogre3d.org/
6
7	Copyright (c) 2000-2005 The OGRE Team
8	Also see acknowledgements in Readme.html
9
10	This program is free software; you can redistribute it and/or modify it under
11	the terms of the GNU Lesser General Public License as published by the Free Software
12	Foundation; either version 2 of the License, or (at your option) any later
13	version.
14
15	This program is distributed in the hope that it will be useful, but WITHOUT
16	ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
17	FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more details.
18
19	You should have received a copy of the GNU Lesser General Public License along with
20	this program; if not, write to the Free Software Foundation, Inc., 59 Temple
21	Place - Suite 330, Boston, MA 02111-1307, USA, or go to
22	http://www.gnu.org/copyleft/lesser.txt.
23	-----------------------------------------------------------------------------
24	*/
25	#include "OgreStableHeaders.h"
26
27	#include "OgreMouseEvent.h"
28	#include "OgreEventDispatcher.h"
29	#include "OgreTargetManager.h"
30	#include "OgreEventProcessor.h"
31	#include "OgrePositionTarget.h"
32	#include "OgreKeyEvent.h"
33
34	namespace Ogre {
35
36	EventDispatcher::EventDispatcher(TargetManager* pTargetManager)
37	:mTargetManager(pTargetManager) // abstract this out TODO
38	{
39	mFocus = 0;
40	mMouseDragSource = 0;
41	mKeyCursorOn = 0;
42	mEventMask = 0;
43	mTargetLastEntered = 0;
44	mMouseX = 0;
45	mMouseY = 0;
46	mDragging = false;
47	mDragDropOn = false;
48	mDragDropActive = false;
49	}
50
51	//---------------------------------------------------------------------
52	EventDispatcher::~EventDispatcher()
53	{
54	}
55
56	//---------------------------------------------------------------------
57	bool EventDispatcher::dispatchEvent(InputEvent* e)
58	{
59	bool ret = false;
60	if (e->isEventBetween(MouseEvent::ME_FIRST_EVENT, MouseEvent::ME_LAST_EVENT)) // i am open to suggestions for a better way to do this
61	// maybe a method e->isEvent(InputEvent::MouseEvent) ??
62	{
63	MouseEvent* me = static_cast<MouseEvent*> (e);
64	ret = processMouseEvent(me);
65	}
66	else if (e->isEventBetween(KeyEvent::KE_FIRST_EVENT, KeyEvent::KE_LAST_EVENT))
67	{
68	KeyEvent* ke = static_cast<KeyEvent*> (e);
69	ret = processKeyEvent(ke);
70
71	}
72	return ret;
73	}
74
75	//---------------------------------------------------------------------
76	void EventDispatcher::setDragDrop(bool dragDropOn)
77	{
78	mDragDropOn = dragDropOn;
79	}
80
81	//---------------------------------------------------------------------
82	bool EventDispatcher::processKeyEvent(KeyEvent* e)
83	{
84	if (mKeyCursorOn != 0)
85	{
86	mKeyCursorOn->processEvent(e);
87	}
88	return e->isConsumed();
89	}
90
91	//---------------------------------------------------------------------
92	bool EventDispatcher::processMouseEvent(MouseEvent* e)
93	{
94	PositionTarget* targetOver;
95
96	mMouseX = e->getX();
97	mMouseY = e->getY();
98
99	targetOver = mTargetManager->getPositionTargetAt(e->getX(), e->getY());
100	trackMouseEnterExit(targetOver, e);
101
102	switch (e->getID())
103	{
104	case MouseEvent::ME_MOUSE_PRESSED:
105	mDragging = true;
106	if (mDragDropOn)
107	mDragDropActive = true;
108	mMouseDragSource = targetOver;
109	retargetMouseEvent(targetOver, e);
110	trackKeyEnterExit(targetOver, e);
111	break;
112
113	case MouseEvent::ME_MOUSE_RELEASED:
114	if (targetOver != 0)
115	{
116	if (targetOver == mMouseDragSource)
117	{
118	retargetMouseEvent(mMouseDragSource, MouseEvent::ME_MOUSE_CLICKED, e);
119	retargetMouseEvent(mMouseDragSource, e);
120	}
121	else // i.e. targetOver != mMouseDragSource
122	{
123	if (mDragDropActive)
124	retargetMouseEvent(targetOver, MouseEvent::ME_MOUSE_DRAGDROPPED, e);
125	retargetMouseEvent(mMouseDragSource, e);
126	retargetMouseEvent(targetOver, MouseEvent::ME_MOUSE_ENTERED, e);
127	}
128	}
129	else
130	retargetMouseEvent(mMouseDragSource, e);
131
132	mDragging = false;
133	mDragDropActive = false;
134	mMouseDragSource = 0;
135	break;
136
137	case MouseEvent::ME_MOUSE_MOVED:
138	case MouseEvent::ME_MOUSE_DRAGGED:
139	if (!mDragging \|\| targetOver == mMouseDragSource)
140	{
141	retargetMouseEvent(targetOver, e);
142	}
143	else // i.e. mDragging && targetOver != mMouseDragSource
144	{
145	retargetMouseEvent(mMouseDragSource, MouseEvent::ME_MOUSE_DRAGGED, e, true);
146	if (mDragDropActive)
147	retargetMouseEvent(targetOver, MouseEvent::ME_MOUSE_DRAGMOVED, e);
148	}
149	break;
150	}
151
152	return e->isConsumed();
153	}
154
155	//---------------------------------------------------------------------
156	void EventDispatcher::retargetMouseEvent(PositionTarget* target, MouseEvent* e)
157	{
158	if (target == NULL)
159	{
160	return;
161	}
162
163	MouseEvent* retargeted = new MouseEvent(target,
164	e->getID(),
165	e->getButtonID(),
166	e->getWhen(),
167	e->getModifiers(),
168	e->getX(),
169	e->getY(),
170	e->getZ(),
171	e->getClickCount());
172
173	target->processEvent(retargeted);
174	delete retargeted;
175
176	e->consume();
177	}
178
179	//---------------------------------------------------------------------
180	void EventDispatcher::retargetMouseEvent(PositionTarget* target, int id, MouseEvent* e, bool consume)
181	{
182	if (target == NULL)
183	{
184	return;
185	}
186
187	MouseEvent* retargeted = new MouseEvent(target,
188	id,
189	e->getButtonID(),
190	e->getWhen(),
191	e->getModifiers(),
192	e->getX(),
193	e->getY(),
194	e->getZ(),
195	e->getClickCount());
196
197	target->processEvent(retargeted);
198	delete retargeted;
199
200	if (consume)
201	e->consume();
202	}
203
204	//---------------------------------------------------------------------
205	void EventDispatcher::retargetKeyEvent(PositionTarget* target, int id, MouseEvent* e)
206	{
207	if (target == NULL)
208	{
209	return;
210	}
211
212	KeyEvent* retargeted = new KeyEvent(target,
213	id,
214	0,
215	e->getWhen(),
216	e->getModifiers());
217
218	target->processEvent(retargeted);
219	delete retargeted;
220	}
221
222	//---------------------------------------------------------------------
223	void EventDispatcher::trackMouseEnterExit(PositionTarget* targetOver, MouseEvent* e)
224	{
225	if (mTargetLastEntered == targetOver)
226	{
227	return;
228	}
229
230	if (mTargetLastEntered != 0)
231	{
232	if (!mDragging \|\| mTargetLastEntered == mMouseDragSource)
233	{
234	retargetMouseEvent(mTargetLastEntered, MouseEvent::ME_MOUSE_EXITED, e);
235	}
236	else if (mDragDropActive) // i.e. mDragging && mTargetLastEntered != mMouseDragSource && mDragDropActive
237	{
238	retargetMouseEvent(mTargetLastEntered, MouseEvent::ME_MOUSE_DRAGEXITED, e);
239	}
240	}
241
242	if (targetOver != 0)
243	{
244	if (!mDragging \|\| targetOver == mMouseDragSource)
245	{
246	retargetMouseEvent(targetOver, MouseEvent::ME_MOUSE_ENTERED, e);
247	}
248	else if (mDragDropActive) // i.e. mDragging && targetOver != mMouseDragSource && mDragDropActive
249	{
250	retargetMouseEvent(targetOver, MouseEvent::ME_MOUSE_DRAGENTERED, e);
251	}
252	}
253
254	mTargetLastEntered = targetOver;
255	}
256
257	//---------------------------------------------------------------------
258	void EventDispatcher::trackKeyEnterExit(PositionTarget* targetOver, MouseEvent* e)
259	{
260	if (targetOver != mKeyCursorOn)
261	{
262	if (mKeyCursorOn != 0)
263	{
264	retargetKeyEvent(mKeyCursorOn, KeyEvent::KE_KEY_FOCUSOUT, e);
265	}
266
267	if (targetOver != 0 && targetOver->isKeyEnabled())
268	{
269	mKeyCursorOn = targetOver;
270	retargetKeyEvent(targetOver, KeyEvent::KE_KEY_FOCUSIN, e);
271	}
272	else
273	{
274	mKeyCursorOn = NULL;
275	}
276	}
277	}
278
279	}
280
281
282

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