aboutsummaryrefslogtreecommitdiffstatshomepage
path: root/libraries/irrlicht-1.8/source/Irrlicht/CIrrDeviceWin32.h
blob: 9442e301542c6ebea286516d6728cd62f7ed2681 (plain)
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
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
// Copyright (C) 2002-2012 Nikolaus Gebhardt
// This file is part of the "Irrlicht Engine".
// For conditions of distribution and use, see copyright notice in irrlicht.h

#ifndef __C_IRR_DEVICE_WIN32_H_INCLUDED__
#define __C_IRR_DEVICE_WIN32_H_INCLUDED__

#include "IrrCompileConfig.h"
#ifdef _IRR_COMPILE_WITH_WINDOWS_DEVICE_

#include "CIrrDeviceStub.h"
#include "IrrlichtDevice.h"
#include "IImagePresenter.h"

#define WIN32_LEAN_AND_MEAN
#if !defined(_IRR_XBOX_PLATFORM_)
	#include <windows.h>
	#include <mmsystem.h> // For JOYCAPS
	#include <windowsx.h>
#endif
#if !defined(GET_X_LPARAM)
#define GET_X_LPARAM(lp) ((int)(short)LOWORD(lp))
#define GET_Y_LPARAM(lp) ((int)(short)HIWORD(lp))
#endif

namespace irr
{
	struct SJoystickWin32Control;

	class CIrrDeviceWin32 : public CIrrDeviceStub, video::IImagePresenter
	{
	friend struct SJoystickWin32Control;
	public:

		//! constructor
		CIrrDeviceWin32(const SIrrlichtCreationParameters& params);

		//! destructor
		virtual ~CIrrDeviceWin32();

		//! runs the device. Returns false if device wants to be deleted
		virtual bool run();

		//! Cause the device to temporarily pause execution and let other processes to run
		// This should bring down processor usage without major performance loss for Irrlicht
		virtual void yield();

		//! Pause execution and let other processes to run for a specified amount of time.
		virtual void sleep(u32 timeMs, bool pauseTimer);

		//! sets the caption of the window
		virtual void setWindowCaption(const wchar_t* text);

		//! returns if window is active. if not, nothing need to be drawn
		virtual bool isWindowActive() const;

		//! returns if window has focus
		virtual bool isWindowFocused() const;

		//! returns if window is minimized
		virtual bool isWindowMinimized() const;

		//! presents a surface in the client area
		virtual bool present(video::IImage* surface, void* windowId=0, core::rect<s32>* src=0);

		//! notifies the device that it should close itself
		virtual void closeDevice();

		//! \return Returns a pointer to a list with all video modes
		//! supported by the gfx adapter.
		video::IVideoModeList* getVideoModeList();

		//! Notifies the device, that it has been resized
		void OnResized();

		//! Sets if the window should be resizable in windowed mode.
		virtual void setResizable(bool resize=false);

		//! Minimizes the window.
		virtual void minimizeWindow();

		//! Maximizes the window.
		virtual void maximizeWindow();

		//! Restores the window size.
		virtual void restoreWindow();

		//! Activate any joysticks, and generate events for them.
		virtual bool activateJoysticks(core::array<SJoystickInfo> & joystickInfo);

		//! Set the current Gamma Value for the Display
		virtual bool setGammaRamp( f32 red, f32 green, f32 blue, f32 brightness, f32 contrast );

		//! Get the current Gamma Value for the Display
		virtual bool getGammaRamp( f32 &red, f32 &green, f32 &blue, f32 &brightness, f32 &contrast );

		//! Remove all messages pending in the system message loop
		virtual void clearSystemMessages();

		//! Get the device type
		virtual E_DEVICE_TYPE getType() const
		{
				return EIDT_WIN32;
		}

		//! Compares to the last call of this function to return double and triple clicks.
		//! \return Returns only 1,2 or 3. A 4th click will start with 1 again.
		virtual u32 checkSuccessiveClicks(s32 mouseX, s32 mouseY, EMOUSE_INPUT_EVENT inputEvent )
		{
			// we just have to make it public
			return CIrrDeviceStub::checkSuccessiveClicks(mouseX, mouseY, inputEvent );
		}

		//! switchs to fullscreen
		bool switchToFullScreen(bool reset=false);

		//! Check for and show last Windows API error to help internal debugging.
		//! Does call GetLastError and on errors formats the errortext and displays it in a messagebox.
		static void ReportLastWinApiError();

		// convert an Irrlicht texture to a windows cursor
		HCURSOR TextureToCursor(HWND hwnd, irr::video::ITexture * tex, const core::rect<s32>& sourceRect, const core::position2d<s32> &hotspot);

		//! Implementation of the win32 cursor control
		class CCursorControl : public gui::ICursorControl
		{
		public:

			CCursorControl(CIrrDeviceWin32* device, const core::dimension2d<u32>& wsize, HWND hwnd, bool fullscreen);
			~CCursorControl();

			//! Changes the visible state of the mouse cursor.
			virtual void setVisible(bool visible)
			{
				CURSORINFO info;
				info.cbSize = sizeof(CURSORINFO);
				BOOL gotCursorInfo = GetCursorInfo(&info);
				while ( gotCursorInfo )
				{
					if ( (visible && info.flags == CURSOR_SHOWING) 	// visible
						|| (!visible && info.flags == 0 ) )			// hidden
					{
						break;
					}
					int showResult = ShowCursor(visible);   // this only increases an internal display counter in windows, so it might have to be called some more
					if ( showResult < 0 )
					{
						break;
					}
					info.cbSize = sizeof(CURSORINFO);	// yes, it really must be set each time
					gotCursorInfo = GetCursorInfo(&info);
				}
				IsVisible = visible;
			}

			//! Returns if the cursor is currently visible.
			virtual bool isVisible() const
			{
				_IRR_IMPLEMENT_MANAGED_MARSHALLING_BUGFIX;
				return IsVisible;
			}

			//! Sets the new position of the cursor.
			virtual void setPosition(const core::position2d<f32> &pos)
			{
				setPosition(pos.X, pos.Y);
			}

			//! Sets the new position of the cursor.
			virtual void setPosition(f32 x, f32 y)
			{
				if (!UseReferenceRect)
					setPosition(core::round32(x*WindowSize.Width), core::round32(y*WindowSize.Height));
				else
					setPosition(core::round32(x*ReferenceRect.getWidth()), core::round32(y*ReferenceRect.getHeight()));
			}

			//! Sets the new position of the cursor.
			virtual void setPosition(const core::position2d<s32> &pos)
			{
				setPosition(pos.X, pos.Y);
			}

			//! Sets the new position of the cursor.
			virtual void setPosition(s32 x, s32 y)
			{
				if (UseReferenceRect)
				{
					SetCursorPos(ReferenceRect.UpperLeftCorner.X + x,
								 ReferenceRect.UpperLeftCorner.Y + y);
				}
				else
				{
					RECT rect;
					if (GetWindowRect(HWnd, &rect))
						SetCursorPos(x + rect.left + BorderX, y + rect.top + BorderY);
				}

				CursorPos.X = x;
				CursorPos.Y = y;
			}

			//! Returns the current position of the mouse cursor.
			virtual const core::position2d<s32>& getPosition()
			{
				updateInternalCursorPosition();
				return CursorPos;
			}

			//! Returns the current position of the mouse cursor.
			virtual core::position2d<f32> getRelativePosition()
			{
				updateInternalCursorPosition();

				if (!UseReferenceRect)
				{
					return core::position2d<f32>(CursorPos.X * InvWindowSize.Width,
						CursorPos.Y * InvWindowSize.Height);
				}

				return core::position2d<f32>(CursorPos.X / (f32)ReferenceRect.getWidth(),
						CursorPos.Y / (f32)ReferenceRect.getHeight());
			}

			//! Sets an absolute reference rect for calculating the cursor position.
			virtual void setReferenceRect(core::rect<s32>* rect=0)
			{
				if (rect)
				{
					ReferenceRect = *rect;
					UseReferenceRect = true;

					// prevent division through zero and uneven sizes

					if (!ReferenceRect.getHeight() || ReferenceRect.getHeight()%2)
						ReferenceRect.LowerRightCorner.Y += 1;

					if (!ReferenceRect.getWidth() || ReferenceRect.getWidth()%2)
						ReferenceRect.LowerRightCorner.X += 1;
				}
				else
					UseReferenceRect = false;
			}

			/** Used to notify the cursor that the window was resized. */
			virtual void OnResize(const core::dimension2d<u32>& size)
			{
				WindowSize = size;
				if (size.Width!=0)
					InvWindowSize.Width = 1.0f / size.Width;
				else
					InvWindowSize.Width = 0.f;

				if (size.Height!=0)
					InvWindowSize.Height = 1.0f / size.Height;
				else
					InvWindowSize.Height = 0.f;
			}

			/** Used to notify the cursor that the window resizable settings changed. */
			void updateBorderSize(bool fullscreen, bool resizable)
			{
			   if (!fullscreen)
			   {
				  if (resizable)
				  {
					 BorderX = GetSystemMetrics(SM_CXSIZEFRAME);
					 BorderY = GetSystemMetrics(SM_CYCAPTION) + GetSystemMetrics(SM_CYSIZEFRAME);
				  }
				  else
				  {
					 BorderX = GetSystemMetrics(SM_CXDLGFRAME);
					 BorderY = GetSystemMetrics(SM_CYCAPTION) + GetSystemMetrics(SM_CYDLGFRAME);
				  }
			   }
			   else
			   {
				  BorderX = BorderY = 0;
			   }
			}


			//! Sets the active cursor icon
			virtual void setActiveIcon(gui::ECURSOR_ICON iconId);

			//! Gets the currently active icon
			virtual gui::ECURSOR_ICON getActiveIcon() const
			{
				return ActiveIcon;
			}

			//! Add a custom sprite as cursor icon.
			virtual gui::ECURSOR_ICON addIcon(const gui::SCursorSprite& icon);

			//! replace the given cursor icon.
			virtual void changeIcon(gui::ECURSOR_ICON iconId, const gui::SCursorSprite& icon);

            //! Return a system-specific size which is supported for cursors. Larger icons will fail, smaller icons might work.
			virtual core::dimension2di getSupportedIconSize() const;

            void update();

		private:

			//! Updates the internal cursor position
			void updateInternalCursorPosition()
			{
				POINT p;
				if (!GetCursorPos(&p))
				{
					DWORD xy = GetMessagePos();
					p.x = GET_X_LPARAM(xy);
					p.y = GET_Y_LPARAM(xy);
				}

				if (UseReferenceRect)
				{
					CursorPos.X = p.x - ReferenceRect.UpperLeftCorner.X;
					CursorPos.Y = p.y - ReferenceRect.UpperLeftCorner.Y;
				}
				else
				{
					RECT rect;
					if (GetWindowRect(HWnd, &rect))
					{
						CursorPos.X = p.x-rect.left-BorderX;
						CursorPos.Y = p.y-rect.top-BorderY;
					}
					else
					{
						// window seems not to be existent, so set cursor to
						// a negative value
						CursorPos.X = -1;
						CursorPos.Y = -1;
					}
				}
			}

            CIrrDeviceWin32* Device;
			core::position2d<s32> CursorPos;
			core::dimension2d<u32> WindowSize;
			core::dimension2d<f32> InvWindowSize;
			HWND HWnd;

			s32 BorderX, BorderY;
			core::rect<s32> ReferenceRect;
			bool UseReferenceRect;
			bool IsVisible;


			struct CursorFrameW32
			{
				CursorFrameW32() : IconHW(0) {}
				CursorFrameW32(HCURSOR icon) : IconHW(icon) {}

				HCURSOR IconHW;	// hardware cursor
			};

			struct CursorW32
			{
				CursorW32() {}
				explicit CursorW32(HCURSOR iconHw, u32 frameTime=0) : FrameTime(frameTime)
				{
					Frames.push_back( CursorFrameW32(iconHw) );
				}
				core::array<CursorFrameW32> Frames;
				u32 FrameTime;
			};

			core::array<CursorW32> Cursors;
			gui::ECURSOR_ICON ActiveIcon;
			u32 ActiveIconStartTime;

			void initCursors();
		};

		//! returns the win32 cursor control
		CCursorControl* getWin32CursorControl();

	private:

		//! create the driver
		void createDriver();

		//! Process system events
		void handleSystemMessages();

		void getWindowsVersion(core::stringc& version);

		void resizeIfNecessary();

		HWND HWnd;

		bool ChangedToFullScreen;
		bool Resized;
		bool ExternalWindow;
		CCursorControl* Win32CursorControl;
		DEVMODE DesktopMode;

		SJoystickWin32Control* JoyControl;
	};

} // end namespace irr

#endif // _IRR_COMPILE_WITH_WINDOWS_DEVICE_
#endif // __C_IRR_DEVICE_WIN32_H_INCLUDED__