/src/ois/src/iphone/iPhoneMultiTouch.mm

  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 "iphone/iPhoneMultiTouch.h"
 24#include "iphone/iPhoneInputManager.h"
 25
 26using namespace OIS;
 27
 28//-------------------------------------------------------------------//
 29iPhoneMultiTouch::iPhoneMultiTouch( InputManager* creator, bool buffered )
 30	: MultiTouch(creator->inputSystemName(), buffered, 0, creator)
 31{
 32	iPhoneInputManager *man = static_cast<iPhoneInputManager*>(mCreator);
 33
 34    man->_setMultiTouchUsed(true);
 35    [man->_getDelegate() setTouchObject:this];
 36}
 37
 38iPhoneMultiTouch::~iPhoneMultiTouch()
 39{
 40	iPhoneInputManager *man = static_cast<iPhoneInputManager*>(mCreator);
 41    
 42    man->_setMultiTouchUsed(false);
 43    [man->_getDelegate() setTouchObject:nil];
 44}
 45
 46void iPhoneMultiTouch::_initialize()
 47{
 48//    mTempState.clear();
 49}
 50
 51void iPhoneMultiTouch::setBuffered( bool buffered )
 52{
 53	mBuffered = buffered;
 54}
 55
 56void iPhoneMultiTouch::capture()
 57{
 58#if 0
 59    for( std::multiset<MultiTouchState *>::iterator i = mStates.begin(), e = mStates.end(); i != e; ++i )
 60    {
 61        // Clear the state first
 62        dynamic_cast<MultiTouchState *>(*i)->clear();
 63
 64        if(mTempState.X.rel || mTempState.Y.rel || mTempState.Z.rel)
 65        {
 66            MultiTouchState *iState = dynamic_cast<MultiTouchState *>(*i);
 67    //		NSLog(@"%i %i %i", mTempState.X.rel, mTempState.Y.rel, mTempState.Z.rel);
 68
 69            // Set new relative motion values
 70            iState->X.rel = mTempState.X.rel;
 71            iState->Y.rel = mTempState.Y.rel;
 72            iState->Z.rel = mTempState.Z.rel;
 73            
 74            // Update absolute position
 75            iState->X.abs += mTempState.X.rel;
 76            iState->Y.abs += mTempState.Y.rel;
 77            
 78            if(iState->X.abs > iState->width)
 79                iState->X.abs = iState->width;
 80            else if(iState->X.abs < 0)
 81                iState->X.abs = 0;
 82
 83            if(iState->Y.abs > iState->height)
 84                iState->Y.abs = iState->height;
 85            else if(iState->Y.abs < 0)
 86                iState->Y.abs = 0;
 87                
 88            iState->Z.abs += mTempState.Z.rel;
 89            
 90            //Fire off event
 91            if(mListener && mBuffered)
 92                mListener->touchMoved(MultiTouchEvent(this, *iState));
 93        }
 94    }
 95
 96	mTempState.clear();
 97#endif
 98}
 99
100void iPhoneMultiTouch::_touchBegan(UITouch *touch)
101{
102    UIView *touchView = static_cast<iPhoneInputManager*>(mCreator)->_getDelegate();
103    CGPoint location = [touch locationInView:touchView];
104    CGFloat contentScale = 1.0;
105#if __IPHONE_4_0
106    if([touchView respondsToSelector:@selector(contentScaleFactor)])
107        contentScale = [touchView contentScaleFactor];
108#endif
109
110    MultiTouchState newState;
111    newState.X.abs = location.x * contentScale;
112    newState.Y.abs = location.y * contentScale;
113    newState.touchType |= 1 << MT_Pressed;
114
115    if( mListener && mBuffered )
116    {
117        mListener->touchPressed(MultiTouchEvent(this, newState));
118    }
119    else
120    {
121        mStates.push_back(newState);
122    }
123}
124
125void iPhoneMultiTouch::_touchEnded(UITouch *touch)
126{
127    UIView *touchView = static_cast<iPhoneInputManager*>(mCreator)->_getDelegate();
128    CGPoint location = [touch locationInView:touchView];
129    CGFloat contentScale = 1.0;
130#if __IPHONE_4_0
131    if([touchView respondsToSelector:@selector(contentScaleFactor)])
132        contentScale = [touchView contentScaleFactor];
133#endif
134
135    MultiTouchState newState;
136    newState.X.abs = location.x * contentScale;
137    newState.Y.abs = location.y * contentScale;
138    newState.touchType |= 1 << MT_Released;
139
140    if( mListener && mBuffered )
141    {
142        mListener->touchReleased(MultiTouchEvent(this, newState));
143    }
144    else
145    {
146        mStates.push_back(newState);
147    }
148}
149
150void iPhoneMultiTouch::_touchMoved(UITouch *touch)
151{
152    UIView *touchView = static_cast<iPhoneInputManager*>(mCreator)->_getDelegate();
153    CGPoint location = [touch locationInView:touchView];
154    CGPoint previousLocation = [touch previousLocationInView:touchView];
155
156    CGFloat contentScale = 1.0;
157#if __IPHONE_4_0
158    if([touchView respondsToSelector:@selector(contentScaleFactor)])
159        contentScale = [touchView contentScaleFactor];
160#endif
161
162    MultiTouchState newState;
163    newState.X.rel = (location.x - previousLocation.x) * contentScale;
164    newState.Y.rel = (location.y - previousLocation.y) * contentScale;
165    newState.X.abs = location.x * contentScale;
166    newState.Y.abs = location.y * contentScale;
167    newState.touchType |= 1 << MT_Moved;
168
169    if( mListener && mBuffered )
170    {
171        mListener->touchMoved(MultiTouchEvent(this, newState));
172    }
173    else
174    {
175        mStates.push_back(newState);
176    }
177}
178
179void iPhoneMultiTouch::_touchCancelled(UITouch *touch)
180{
181    UIView *touchView = static_cast<iPhoneInputManager*>(mCreator)->_getDelegate();
182    CGPoint location = [touch locationInView:touchView];
183
184    CGFloat contentScale = 1.0;
185#if __IPHONE_4_0
186    if([touchView respondsToSelector:@selector(contentScaleFactor)])
187        contentScale = [touchView contentScaleFactor];
188#endif
189
190    MultiTouchState newState;
191    newState.X.abs = location.x * contentScale;
192    newState.Y.abs = location.y * contentScale;
193    newState.touchType |= 1 << MT_Cancelled;
194
195    if( mListener && mBuffered )
196    {
197        mListener->touchCancelled(MultiTouchEvent(this, newState));
198    }
199    else
200    {
201        mStates.push_back(newState);
202    }
203}