/src/ois/src/win32/Win32Mouse.cpp

  1/*
  2The zlib/libpng License
  3
  4Copyright (c) 2005-2007 Phillip Castaneda (pjcast -- www.wreckedgames.com)
  5
  6This software is provided 'as-is', without any express or implied warranty. In no event will
  7the authors be held liable for any damages arising from the use of this software.
  8
  9Permission is granted to anyone to use this software for any purpose, including commercial 
 10applications, and to alter it and redistribute it freely, subject to the following
 11restrictions:
 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 "win32/Win32Mouse.h"
 24#include "win32/Win32InputManager.h"
 25#include "OISException.h"
 26#include "OISEvents.h"
 27
 28using namespace OIS;
 29
 30//--------------------------------------------------------------------------------------------------//
 31Win32Mouse::Win32Mouse( InputManager* creator, IDirectInput8* pDI, bool buffered, DWORD coopSettings )
 32	: Mouse(creator->inputSystemName(), buffered, 0, creator)
 33{
 34	mMouse = 0;
 35	mDirectInput = pDI;
 36	coopSetting = coopSettings;
 37	mHwnd = 0;
 38
 39	static_cast<Win32InputManager*>(mCreator)->_setMouseUsed(true);
 40}
 41
 42//--------------------------------------------------------------------------------------------------//
 43void Win32Mouse::_initialize()
 44{
 45	DIPROPDWORD dipdw;
 46
 47	//Clear old state
 48	mState.clear();
 49
 50    dipdw.diph.dwSize       = sizeof(DIPROPDWORD);
 51    dipdw.diph.dwHeaderSize = sizeof(DIPROPHEADER);
 52    dipdw.diph.dwObj        = 0;
 53    dipdw.diph.dwHow        = DIPH_DEVICE;
 54	dipdw.dwData            = MOUSE_DX_BUFFERSIZE;
 55	
 56	if( FAILED(mDirectInput->CreateDevice(GUID_SysMouse, &mMouse, NULL)) )
 57		OIS_EXCEPT( E_General, "Win32Mouse::Win32Mouse >> Failed to create device" );
 58
 59	if( FAILED(mMouse->SetDataFormat(&c_dfDIMouse2)) )
 60		OIS_EXCEPT( E_General, "Win32Mouse::Win32Mouse >> Failed to set format" );
 61	
 62	mHwnd = ((Win32InputManager*)mCreator)->getWindowHandle();
 63
 64	if( FAILED(mMouse->SetCooperativeLevel(mHwnd, coopSetting)) )
 65		OIS_EXCEPT( E_General, "Win32Mouse::Win32Mouse >> Failed to set coop level" );
 66	
 67	if( FAILED(mMouse->SetProperty(DIPROP_BUFFERSIZE, &dipdw.diph )) )
 68		OIS_EXCEPT( E_General, "Win32Mouse::Win32Mouse >> Failed to set property" );
 69
 70	HRESULT hr = mMouse->Acquire();
 71	if (FAILED(hr) && hr != DIERR_OTHERAPPHASPRIO)
 72		OIS_EXCEPT( E_General, "Win32Mouse::Win32Mouse >> Failed to aquire mouse!" );
 73}
 74
 75//--------------------------------------------------------------------------------------------------//
 76Win32Mouse::~Win32Mouse()
 77{
 78	if (mMouse)
 79	{
 80		mMouse->Unacquire();
 81		mMouse->Release();
 82		mMouse = 0;
 83	}
 84
 85	static_cast<Win32InputManager*>(mCreator)->_setMouseUsed(false);
 86}
 87
 88//--------------------------------------------------------------------------------------------------//
 89void Win32Mouse::capture()
 90{
 91	//Clear old relative values
 92	mState.X.rel = mState.Y.rel = mState.Z.rel = 0;
 93
 94	DIDEVICEOBJECTDATA diBuff[MOUSE_DX_BUFFERSIZE];
 95	DWORD entries = MOUSE_DX_BUFFERSIZE;
 96
 97	HRESULT hr = mMouse->GetDeviceData( sizeof(DIDEVICEOBJECTDATA), diBuff, &entries, 0 );
 98	if( hr != DI_OK )
 99	{
100		hr = mMouse->Acquire();
101		while( hr == DIERR_INPUTLOST ) 
102			hr = mMouse->Acquire();
103
104		hr = mMouse->GetDeviceData( sizeof(DIDEVICEOBJECTDATA), diBuff, &entries, 0 );
105		
106		//Perhaps the user just tabbed away, and coop settings
107		//are nonexclusive..so just ignore
108		if( FAILED(hr) )
109			return;
110	}
111
112	bool axesMoved = false;
113	//Accumulate all axis movements for one axesMove message..
114	//Buttons are fired off as they are found
115	for(unsigned int i = 0; i < entries; ++i )
116	{
117		switch( diBuff[i].dwOfs )
118		{
119			case DIMOFS_BUTTON0:
120				if(!_doMouseClick(0, diBuff[i])) return;
121				break;
122			case DIMOFS_BUTTON1:
123				if(!_doMouseClick(1, diBuff[i])) return;
124				break;
125			case DIMOFS_BUTTON2:
126				if(!_doMouseClick(2, diBuff[i])) return;
127				break;
128			case DIMOFS_BUTTON3:
129				if(!_doMouseClick(3, diBuff[i])) return;
130				break;
131			case DIMOFS_BUTTON4:
132				if(!_doMouseClick(4, diBuff[i])) return;
133				break;	
134			case DIMOFS_BUTTON5:
135				if(!_doMouseClick(5, diBuff[i])) return;
136				break;
137			case DIMOFS_BUTTON6:
138				if(!_doMouseClick(6, diBuff[i])) return;
139				break;
140			case DIMOFS_BUTTON7:
141				if(!_doMouseClick(7, diBuff[i])) return;
142				break;
143			case DIMOFS_X:
144				mState.X.rel += diBuff[i].dwData;
145				axesMoved = true;
146				break;
147			case DIMOFS_Y:
148				mState.Y.rel += diBuff[i].dwData;
149				axesMoved = true;
150				break;
151			case DIMOFS_Z:
152				mState.Z.rel += diBuff[i].dwData;
153				axesMoved = true;
154				break;
155			default: break;
156		} //end switch
157	}//end for
158
159	if( axesMoved )
160	{
161		if( coopSetting & DISCL_NONEXCLUSIVE )
162		{
163			//DirectInput provides us with meaningless values, so correct that
164			POINT point;
165			GetCursorPos(&point);
166			ScreenToClient(mHwnd, &point);
167			mState.X.abs = point.x;
168			mState.Y.abs = point.y;
169		}
170		else
171		{
172			mState.X.abs +=  mState.X.rel;
173			mState.Y.abs +=  mState.Y.rel;
174		}
175		mState.Z.abs +=  mState.Z.rel;
176
177		//Clip values to window
178		if( mState.X.abs < 0 )
179			mState.X.abs = 0;
180		else if( mState.X.abs > mState.width )
181			mState.X.abs = mState.width;
182		if( mState.Y.abs < 0 )
183			mState.Y.abs = 0;
184		else if( mState.Y.abs > mState.height )
185			mState.Y.abs = mState.height;
186
187		//Do the move
188		if( mListener && mBuffered )
189			mListener->mouseMoved( MouseEvent( this, mState ) );
190	}
191}
192
193//--------------------------------------------------------------------------------------------------//
194bool Win32Mouse::_doMouseClick( int mouseButton, DIDEVICEOBJECTDATA& di )
195{
196	if( di.dwData & 0x80 )
197	{
198		mState.buttons |= 1 << mouseButton; //turn the bit flag on
199		if( mListener && mBuffered )
200			return mListener->mousePressed( MouseEvent( this, mState ), (MouseButtonID)mouseButton );
201	}
202	else
203	{
204		mState.buttons &= ~(1 << mouseButton); //turn the bit flag off
205		if( mListener && mBuffered )
206			return mListener->mouseReleased( MouseEvent( this, mState ), (MouseButtonID)mouseButton );
207	}
208
209	return true;
210}
211
212//--------------------------------------------------------------------------------------------------//
213void Win32Mouse::setBuffered(bool buffered)
214{
215	mBuffered = buffered;
216}