xref: /haiku/headers/os/interface/View.h (revision f23596149e0d173463f70629581aa10cc305d32e)
1 /*
2  * Copyright 2001-2006, Haiku.
3  * Distributed under the terms of the MIT License.
4  *
5  * Authors:
6  *		Erik Jaesler (erik@cgsoftware.com)
7  */
8 #ifndef	_VIEW_H
9 #define	_VIEW_H
10 
11 
12 #include <Alignment.h>
13 #include <BeBuild.h>
14 #include <Font.h>
15 #include <Handler.h>
16 #include <InterfaceDefs.h>
17 #include <Rect.h>
18 #include <Size.h>
19 
20 
21 // mouse button
22 enum {
23 	B_PRIMARY_MOUSE_BUTTON = 0x01,
24 	B_SECONDARY_MOUSE_BUTTON = 0x02,
25 	B_TERTIARY_MOUSE_BUTTON = 0x04
26 };
27 
28 // mouse transit
29 enum {
30 	B_ENTERED_VIEW = 0,
31 	B_INSIDE_VIEW,
32 	B_EXITED_VIEW,
33 	B_OUTSIDE_VIEW
34 };
35 
36 // event mask
37 enum {
38 	B_POINTER_EVENTS		= 0x00000001,
39 	B_KEYBOARD_EVENTS		= 0x00000002
40 };
41 
42 // event mask options
43 enum {
44 	B_LOCK_WINDOW_FOCUS		= 0x00000001,
45 	B_SUSPEND_VIEW_FOCUS	= 0x00000002,
46 	B_NO_POINTER_HISTORY	= 0x00000004
47 };
48 
49 enum {
50 	B_TRACK_WHOLE_RECT,
51 	B_TRACK_RECT_CORNER
52 };
53 
54 // set font mask
55 enum {
56 	B_FONT_FAMILY_AND_STYLE	= 0x00000001,
57 	B_FONT_SIZE				= 0x00000002,
58 	B_FONT_SHEAR			= 0x00000004,
59 	B_FONT_ROTATION			= 0x00000008,
60 	B_FONT_SPACING     		= 0x00000010,
61 	B_FONT_ENCODING			= 0x00000020,
62 	B_FONT_FACE				= 0x00000040,
63 	B_FONT_FLAGS			= 0x00000080,
64 	B_FONT_ALL				= 0x000000FF
65 };
66 
67 // view flags
68 const uint32 B_FULL_UPDATE_ON_RESIZE 	= 0x80000000UL;	/* 31 */
69 const uint32 _B_RESERVED1_ 				= 0x40000000UL;	/* 30 */
70 const uint32 B_WILL_DRAW 				= 0x20000000UL;	/* 29 */
71 const uint32 B_PULSE_NEEDED 			= 0x10000000UL;	/* 28 */
72 const uint32 B_NAVIGABLE_JUMP 			= 0x08000000UL;	/* 27 */
73 const uint32 B_FRAME_EVENTS				= 0x04000000UL;	/* 26 */
74 const uint32 B_NAVIGABLE 				= 0x02000000UL;	/* 25 */
75 const uint32 B_SUBPIXEL_PRECISE 		= 0x01000000UL;	/* 24 */
76 const uint32 B_DRAW_ON_CHILDREN 		= 0x00800000UL;	/* 23 */
77 const uint32 B_INPUT_METHOD_AWARE 		= 0x00400000UL;	/* 23 */
78 const uint32 _B_RESERVED7_ 				= 0x00200000UL;	/* 22 */
79 const uint32 B_SUPPORTS_LAYOUT			= 0x00100000UL;	/* 21 */
80 const uint32 B_INVALIDATE_AFTER_LAYOUT	= 0x00080000UL;	/* 20 */
81 
82 #define _RESIZE_MASK_ ~(B_FULL_UPDATE_ON_RESIZE | _B_RESERVED1_ | B_WILL_DRAW \
83 	| B_PULSE_NEEDED | B_NAVIGABLE_JUMP | B_FRAME_EVENTS | B_NAVIGABLE \
84 	| B_SUBPIXEL_PRECISE | B_DRAW_ON_CHILDREN | B_INPUT_METHOD_AWARE | _B_RESERVED7_)
85 
86 const uint32 _VIEW_TOP_ 	= 1UL;
87 const uint32 _VIEW_LEFT_ 	= 2UL;
88 const uint32 _VIEW_BOTTOM_ 	= 3UL;
89 const uint32 _VIEW_RIGHT_ 	= 4UL;
90 const uint32 _VIEW_CENTER_ 	= 5UL;
91 
92 inline uint32 _rule_(uint32 r1, uint32 r2, uint32 r3, uint32 r4)
93 	{ return ((r1 << 12) | (r2 << 8) | (r3 << 4) | r4); }
94 
95 #define B_FOLLOW_NONE 0
96 #define B_FOLLOW_ALL_SIDES	_rule_(_VIEW_TOP_, _VIEW_LEFT_, _VIEW_BOTTOM_, _VIEW_RIGHT_)
97 #define B_FOLLOW_ALL  		B_FOLLOW_ALL_SIDES
98 
99 #define B_FOLLOW_LEFT		_rule_(0, _VIEW_LEFT_, 0, _VIEW_LEFT_)
100 #define B_FOLLOW_RIGHT		_rule_(0, _VIEW_RIGHT_, 0, _VIEW_RIGHT_)
101 #define B_FOLLOW_LEFT_RIGHT	_rule_(0, _VIEW_LEFT_, 0, _VIEW_RIGHT_)
102 #define B_FOLLOW_H_CENTER	_rule_(0, _VIEW_CENTER_, 0, _VIEW_CENTER_)
103 
104 #define B_FOLLOW_TOP		_rule_(_VIEW_TOP_, 0, _VIEW_TOP_, 0)
105 #define B_FOLLOW_BOTTOM		_rule_(_VIEW_BOTTOM_, 0, _VIEW_BOTTOM_, 0)
106 #define B_FOLLOW_TOP_BOTTOM	_rule_(_VIEW_TOP_, 0, _VIEW_BOTTOM_, 0)
107 #define B_FOLLOW_V_CENTER	_rule_(_VIEW_CENTER_, 0, _VIEW_CENTER_, 0)
108 
109 class BBitmap;
110 class BCursor;
111 class BLayout;
112 class BLayoutContext;
113 class BLayoutItem;
114 class BMessage;
115 class BPicture;
116 class BPolygon;
117 class BRegion;
118 class BScrollBar;
119 class BScrollView;
120 class BShape;
121 class BShelf;
122 class BString;
123 class BWindow;
124 struct _array_data_;
125 struct _array_hdr_;
126 struct overlay_restrictions;
127 
128 namespace BPrivate {
129 	class ViewState;
130 };
131 
132 
133 class BView : public BHandler {
134 public:
135 							BView(const char* name, uint32 flags,
136 								BLayout* layout = NULL);
137 							BView(BRect frame, const char* name,
138 								  uint32 resizeMask, uint32 flags);
139 	virtual					~BView();
140 
141 							BView(BMessage* data);
142 	static	BArchivable*	Instantiate(BMessage* data);
143 	virtual	status_t		Archive(BMessage* data, bool deep = true) const;
144 
145 	virtual	void			AttachedToWindow();
146 	virtual	void			AllAttached();
147 	virtual	void			DetachedFromWindow();
148 	virtual	void			AllDetached();
149 
150 	virtual	void			MessageReceived(BMessage* msg);
151 
152 			void			AddChild(BView* child, BView* before = NULL);
153 			bool			AddChild(BLayoutItem* child);
154 			bool			RemoveChild(BView* child);
155 			int32			CountChildren() const;
156 			BView*			ChildAt(int32 index) const;
157 			BView*			NextSibling() const;
158 			BView*			PreviousSibling() const;
159 			bool			RemoveSelf();
160 
161 			BWindow*		Window() const;
162 
163 	virtual	void			Draw(BRect updateRect);
164 	virtual	void			MouseDown(BPoint where);
165 	virtual	void			MouseUp(BPoint where);
166 	virtual	void			MouseMoved(BPoint where,
167 									   uint32 code,
168 									   const BMessage* a_message);
169 	virtual	void			WindowActivated(bool state);
170 	virtual	void			KeyDown(const char* bytes, int32 numBytes);
171 	virtual	void			KeyUp(const char* bytes, int32 numBytes);
172 	virtual	void			Pulse();
173 	virtual	void			FrameMoved(BPoint new_position);
174 	virtual	void			FrameResized(float new_width, float new_height);
175 
176 	virtual	void			TargetedByScrollView(BScrollView* scroll_view);
177 			void			BeginRectTracking(BRect startRect,
178 											  uint32 style = B_TRACK_WHOLE_RECT);
179 			void			EndRectTracking();
180 
181 			void			GetMouse(BPoint* location,
182 									 uint32* buttons,
183 									 bool checkMessageQueue = true);
184 
185 			void			DragMessage(BMessage* aMessage,
186 										BRect dragRect,
187 										BHandler* reply_to = NULL);
188 			void			DragMessage(BMessage* aMessage,
189 										BBitmap* anImage,
190 										BPoint offset,
191 										BHandler* reply_to = NULL);
192 			void			DragMessage(BMessage* aMessage,
193 										BBitmap* anImage,
194 										drawing_mode dragMode,
195 										BPoint offset,
196 										BHandler* reply_to = NULL);
197 
198 			BView*			FindView(const char* name) const;
199 			BView*			Parent() const;
200 			BRect			Bounds() const;
201 			BRect			Frame() const;
202 			void			ConvertToScreen(BPoint* pt) const;
203 			BPoint			ConvertToScreen(BPoint pt) const;
204 			void			ConvertFromScreen(BPoint* pt) const;
205 			BPoint			ConvertFromScreen(BPoint pt) const;
206 			void			ConvertToScreen(BRect* r) const;
207 			BRect			ConvertToScreen(BRect r) const;
208 			void			ConvertFromScreen(BRect* r) const;
209 			BRect			ConvertFromScreen(BRect r) const;
210 			void			ConvertToParent(BPoint* pt) const;
211 			BPoint			ConvertToParent(BPoint pt) const;
212 			void			ConvertFromParent(BPoint* pt) const;
213 			BPoint			ConvertFromParent(BPoint pt) const;
214 			void			ConvertToParent(BRect* r) const;
215 			BRect			ConvertToParent(BRect r) const;
216 			void			ConvertFromParent(BRect* r) const;
217 			BRect			ConvertFromParent(BRect r) const;
218 			BPoint			LeftTop() const;
219 
220 			void			GetClippingRegion(BRegion* region) const;
221 	virtual	void			ConstrainClippingRegion(BRegion* region);
222 			void			ClipToPicture(BPicture* picture,
223 										  BPoint where = B_ORIGIN,
224 										  bool sync = true);
225 			void			ClipToInversePicture(BPicture* picture,
226 												 BPoint where = B_ORIGIN,
227 												 bool sync = true);
228 
229 	virtual	void			SetDrawingMode(drawing_mode mode);
230 			drawing_mode 	DrawingMode() const;
231 
232 			void			SetBlendingMode(source_alpha srcAlpha,
233 											alpha_function alphaFunc);
234 			void	 		GetBlendingMode(source_alpha* srcAlpha,
235 											alpha_function* alphaFunc) const;
236 
237 	virtual	void			SetPenSize(float size);
238 			float			PenSize() const;
239 
240 			void			SetViewCursor(const BCursor* cursor, bool sync=true);
241 
242 	virtual	void			SetViewColor(rgb_color c);
243 			void			SetViewColor(uchar r, uchar g, uchar b, uchar a = 255);
244 			rgb_color		ViewColor() const;
245 
246 			void			SetViewBitmap(const BBitmap* bitmap,
247 										  BRect srcRect, BRect dstRect,
248 										  uint32 followFlags = B_FOLLOW_TOP|B_FOLLOW_LEFT,
249 										  uint32 options = B_TILE_BITMAP);
250 			void			SetViewBitmap(const BBitmap* bitmap,
251 										  uint32 followFlags = B_FOLLOW_TOP|B_FOLLOW_LEFT,
252 										  uint32 options = B_TILE_BITMAP);
253 			void			ClearViewBitmap();
254 
255 			status_t		SetViewOverlay(const BBitmap* overlay,
256 										   BRect srcRect, BRect dstRect,
257 										   rgb_color* colorKey,
258 										   uint32 followFlags = B_FOLLOW_TOP|B_FOLLOW_LEFT,
259 										   uint32 options = 0);
260 			status_t		SetViewOverlay(const BBitmap* overlay, rgb_color* colorKey,
261 										   uint32 followFlags = B_FOLLOW_TOP|B_FOLLOW_LEFT,
262 										   uint32 options = 0);
263 			void			ClearViewOverlay();
264 
265 	virtual	void			SetHighColor(rgb_color a_color);
266 			void			SetHighColor(uchar r, uchar g, uchar b, uchar a = 255);
267 			rgb_color		HighColor() const;
268 
269 	virtual	void			SetLowColor(rgb_color a_color);
270 			void			SetLowColor(uchar r, uchar g, uchar b, uchar a = 255);
271 			rgb_color		LowColor() const;
272 
273 			void			SetLineMode(cap_mode lineCap,
274 										join_mode lineJoin,
275 										float miterLimit = B_DEFAULT_MITER_LIMIT);
276 			join_mode		LineJoinMode() const;
277 			cap_mode		LineCapMode() const;
278 			float			LineMiterLimit() const;
279 
280 			void			SetOrigin(BPoint pt);
281 			void			SetOrigin(float x, float y);
282 			BPoint			Origin() const;
283 
284 			void			PushState();
285 			void			PopState();
286 
287 			void			MovePenTo(BPoint pt);
288 			void			MovePenTo(float x, float y);
289 			void			MovePenBy(float x, float y);
290 			BPoint			PenLocation() const;
291 			void			StrokeLine(BPoint toPt,
292 									   pattern p = B_SOLID_HIGH);
293 			void			StrokeLine(BPoint pt0,
294 									   BPoint pt1,
295 									   pattern p = B_SOLID_HIGH);
296 			void			BeginLineArray(int32 count);
297 			void			AddLine(BPoint pt0, BPoint pt1, rgb_color col);
298 			void			EndLineArray();
299 
300 			void			StrokePolygon(const BPolygon* aPolygon,
301 										  bool closed = true,
302 										  pattern p = B_SOLID_HIGH);
303 			void			StrokePolygon(const BPoint* ptArray,
304 										  int32 numPts,
305 										  bool closed = true,
306 										  pattern p = B_SOLID_HIGH);
307 			void			StrokePolygon(const BPoint* ptArray,
308 										  int32 numPts,
309 										  BRect bounds,
310 										  bool closed = true,
311 										  pattern p = B_SOLID_HIGH);
312 			void			FillPolygon(const BPolygon* aPolygon,
313 										pattern p = B_SOLID_HIGH);
314 			void			FillPolygon(const BPoint* ptArray,
315 										int32 numPts,
316 										pattern p = B_SOLID_HIGH);
317 			void			FillPolygon(const BPoint* ptArray,
318 										int32 numPts,
319 										BRect bounds,
320 										pattern p = B_SOLID_HIGH);
321 
322 			void			StrokeTriangle(BPoint pt1,
323 										   BPoint pt2,
324 										   BPoint pt3,
325 										   BRect bounds,
326 										   pattern p = B_SOLID_HIGH);
327 			void			StrokeTriangle(BPoint pt1,
328 										   BPoint pt2,
329 										   BPoint pt3,
330 										   pattern p = B_SOLID_HIGH);
331 			void			FillTriangle(BPoint pt1,
332 										 BPoint pt2,
333 										 BPoint pt3,
334 										 pattern p = B_SOLID_HIGH);
335 			void			FillTriangle(BPoint pt1,
336 										 BPoint pt2,
337 										 BPoint pt3,
338 										 BRect bounds,
339 										 pattern p = B_SOLID_HIGH);
340 
341 			void			StrokeRect(BRect r, pattern p = B_SOLID_HIGH);
342 			void			FillRect(BRect r, pattern p = B_SOLID_HIGH);
343 			void			FillRegion(BRegion* a_region, pattern p= B_SOLID_HIGH);
344 			void			InvertRect(BRect r);
345 
346 			void			StrokeRoundRect(BRect r,
347 											float xRadius,
348 											float yRadius,
349 											pattern p = B_SOLID_HIGH);
350 			void			FillRoundRect(BRect r,
351 										  float xRadius,
352 										  float yRadius,
353 										  pattern p = B_SOLID_HIGH);
354 
355 			void			StrokeEllipse(BPoint center,
356 										  float xRadius,
357 										  float yRadius,
358 										  pattern p = B_SOLID_HIGH);
359 			void			StrokeEllipse(BRect r, pattern p = B_SOLID_HIGH);
360 			void			FillEllipse(BPoint center,
361 										float xRadius,
362 										float yRadius,
363 										pattern p = B_SOLID_HIGH);
364 			void			FillEllipse(BRect r, pattern p = B_SOLID_HIGH);
365 
366 			void			StrokeArc(BPoint center,
367 									  float xRadius,
368 									  float yRadius,
369 									  float start_angle,
370 									  float arc_angle,
371 									  pattern p = B_SOLID_HIGH);
372 			void			StrokeArc(BRect r,
373 									  float start_angle,
374 									  float arc_angle,
375 									  pattern p = B_SOLID_HIGH);
376 			void			FillArc(BPoint center,
377 									float xRadius,
378 									float yRadius,
379 									float start_angle,
380 									float arc_angle,
381 									pattern p = B_SOLID_HIGH);
382 			void			FillArc(BRect r,
383 									float start_angle,
384 									float arc_angle,
385 									pattern p = B_SOLID_HIGH);
386 
387 			void			StrokeBezier(BPoint* controlPoints,
388 										 pattern p = B_SOLID_HIGH);
389 			void			FillBezier(BPoint* controlPoints,
390 									   pattern p = B_SOLID_HIGH);
391 
392 			void			StrokeShape(BShape* shape,
393 										pattern p = B_SOLID_HIGH);
394 			void			FillShape(BShape* shape,
395 									  pattern p = B_SOLID_HIGH);
396 
397 			void			CopyBits(BRect src, BRect dst);
398 			void			DrawBitmapAsync(const BBitmap* aBitmap,
399 											BRect srcRect,
400 											BRect dstRect);
401 			void			DrawBitmapAsync(const BBitmap* aBitmap);
402 			void			DrawBitmapAsync(const BBitmap* aBitmap, BPoint where);
403 			void			DrawBitmapAsync(const BBitmap* aBitmap, BRect dstRect);
404 			void			DrawBitmap(const BBitmap* aBitmap,
405 									   BRect srcRect,
406 									   BRect dstRect);
407 			void			DrawBitmap(const BBitmap* aBitmap);
408 			void			DrawBitmap(const BBitmap* aBitmap, BPoint where);
409 			void			DrawBitmap(const BBitmap* aBitmap, BRect dstRect);
410 
411 			void			DrawChar(char aChar);
412 			void			DrawChar(char aChar, BPoint location);
413 			void			DrawString(const char* aString,
414 									   escapement_delta* delta = NULL);
415 			void			DrawString(const char* aString, BPoint location,
416 									   escapement_delta* delta = NULL);
417 			void			DrawString(const char* aString, int32 length,
418 									   escapement_delta* delta = NULL);
419 			void			DrawString(const char* aString,
420 									   int32 length,
421 									   BPoint location,
422 									   escapement_delta* delta = 0L);
423 
424 	virtual void            SetFont(const BFont* font, uint32 mask = B_FONT_ALL);
425 
426 	#if !_PR3_COMPATIBLE_
427 			void            GetFont(BFont* font) const;
428 	#else
429 			void            GetFont(BFont* font);
430 	#endif
431 			void			TruncateString(BString* in_out,
432 										   uint32 mode,
433 										   float width) const;
434 			float			StringWidth(const char* string) const;
435 			float			StringWidth(const char* string, int32 length) const;
436 			void			GetStringWidths(char* stringArray[],
437 											int32 lengthArray[],
438 											int32 numStrings,
439 											float widthArray[]) const;
440 			void			SetFontSize(float size);
441 			void			ForceFontAliasing(bool enable);
442 			void			GetFontHeight(font_height* height) const;
443 
444 			void			Invalidate(BRect invalRect);
445 			void			Invalidate(const BRegion* invalRegion);
446 			void			Invalidate();
447 
448 			void			SetDiskMode(char* filename, long offset);
449 
450 			void			BeginPicture(BPicture* a_picture);
451 			void			AppendToPicture(BPicture* a_picture);
452 			BPicture*		EndPicture();
453 
454 			void			DrawPicture(const BPicture* a_picture);
455 			void			DrawPicture(const BPicture* a_picture, BPoint where);
456 			void			DrawPicture(const char* filename, long offset, BPoint where);
457 			void			DrawPictureAsync(const BPicture* a_picture);
458 			void			DrawPictureAsync(const BPicture* a_picture, BPoint where);
459 			void			DrawPictureAsync(const char* filename, long offset,
460 											 BPoint where);
461 
462 			status_t		SetEventMask(uint32 mask, uint32 options=0);
463 			uint32			EventMask();
464 			status_t		SetMouseEventMask(uint32 mask, uint32 options=0);
465 
466 	virtual	void			SetFlags(uint32 flags);
467 			uint32			Flags() const;
468 	virtual	void			SetResizingMode(uint32 mode);
469 			uint32			ResizingMode() const;
470 			void			MoveBy(float dh, float dv);
471 			void			MoveTo(BPoint where);
472 			void			MoveTo(float x, float y);
473 			void			ResizeBy(float dh, float dv);
474 			void			ResizeTo(float width, float height);
475 			void			ScrollBy(float dh, float dv);
476 			void			ScrollTo(float x, float y);
477 	virtual	void			ScrollTo(BPoint where);
478 	virtual	void			MakeFocus(bool focusState = true);
479 			bool			IsFocus() const;
480 
481 	virtual	void			Show();
482 	virtual	void			Hide();
483 			bool			IsHidden() const;
484 			bool			IsHidden(const BView* looking_from) const;
485 
486 			void			Flush() const;
487 			void			Sync() const;
488 
489 	virtual	void			GetPreferredSize(float* width, float* height);
490 	virtual	void			ResizeToPreferred();
491 
492 			BScrollBar*		ScrollBar(orientation posture) const;
493 
494 	virtual BHandler*		ResolveSpecifier(BMessage* msg,
495 											 int32 index,
496 											 BMessage* specifier,
497 											 int32 form,
498 											 const char* property);
499 	virtual status_t		GetSupportedSuites(BMessage* data);
500 
501 			bool			IsPrinting() const;
502 			void			SetScale(float scale) const;
503 			float			Scale() const;
504 								// new for Haiku
505 
506 	virtual status_t		Perform(perform_code d, void* arg);
507 
508 	virtual	void			DrawAfterChildren(BRect r);
509 
510 
511 			// layout related
512 
513 	virtual	BSize			MinSize();
514 	virtual	BSize			MaxSize();
515 	virtual	BSize			PreferredSize();
516 	virtual	BAlignment		Alignment();
517 
518 			void			SetExplicitMinSize(BSize size);
519 			void			SetExplicitMaxSize(BSize size);
520 			void			SetExplicitPreferredSize(BSize size);
521 			void			SetExplicitAlignment(BAlignment alignment);
522 
523 			BSize			ExplicitMinSize() const;
524 			BSize			ExplicitMaxSize() const;
525 			BSize			ExplicitPreferredSize() const;
526 			BAlignment		ExplicitAlignment() const;
527 
528 	virtual	bool			HasHeightForWidth();
529 	virtual	void			GetHeightForWidth(float width, float* min,
530 								float* max, float* preferred);
531 
532 	virtual	void			SetLayout(BLayout* layout);
533 			BLayout*		GetLayout() const;
534 
535 			void			InvalidateLayout(bool descendants = false);
536 			void			EnableLayoutInvalidation();
537 			void			DisableLayoutInvalidation();
538 
539 			BLayoutContext*	LayoutContext() const;
540 
541 			void			Layout(bool force);
542 			void			Relayout();
543 
544 protected:
545 	virtual	void			DoLayout();
546 
547 private:
548 			void			_Layout(bool force, BLayoutContext* context);
549 
550 private:
551 	struct LayoutData;
552 
553 	friend class BBitmap;
554 	friend class BLayout;
555 	friend class BPrintJob;
556 	friend class BScrollBar;
557 	friend class BShelf;
558 	friend class BTabView;
559 	friend class BWindow;
560 
561 	virtual	void			_ReservedView10();
562 	virtual	void			_ReservedView11();
563 	virtual	void			_ReservedView12();
564 	virtual	void			_ReservedView13();
565 	virtual	void			_ReservedView14();
566 	virtual	void			_ReservedView15();
567 	virtual	void			_ReservedView16();
568 
569 							BView(const BView&);
570 			BView&			operator=(const BView&);
571 
572 			void			_InitData(BRect frame, const char* name, uint32 resizeMask,
573 								uint32 flags);
574 			status_t		_SetViewBitmap(const BBitmap* bitmap,BRect srcRect,
575 								BRect dstRect, uint32 followFlags, uint32 options);
576 			void			DoBezier(int32 gr, BPoint* controlPoints, pattern p);
577 			void			DoShape(int32 gr, BShape* shape, pattern p);
578 			void			DoPictureClip(BPicture* picture, BPoint where, bool invert,
579 								bool sync);
580 
581 			bool			do_owner_check() const;
582 			bool			do_owner_check_no_pick() const;
583 			void			check_lock() const;
584 			void			check_lock_no_pick() const;
585 
586 			void			_SetOwner(BWindow* newOwner);
587 			void			handle_tick();
588 			char*			test_area(int32 length);
589 			void			removeCommArray();
590 			void			SetScroller(BScrollBar* sb);
591 			void			UnsetScroller(BScrollBar* sb);
592 			void			RealScrollTo(BPoint);
593 			void			fetch_font();
594 			uchar			font_encoding() const;
595 			BShelf*			_Shelf() const;
596 			void			_SetShelf(BShelf* shelf);
597 
598 			void			_MoveTo(int32 x, int32 y);
599 			void			_ResizeBy(int32 deltaWidth, int32 deltaHeight);
600 			void			_ParentResizedBy(int32 x, int32 y);
601 
602 			void			_Activate(bool state);
603 			void			_Attach();
604 			void			_Detach();
605 			void			_Draw(BRect updateRect);
606 			void			_Pulse();
607 
608 			void			_UpdateStateForRemove();
609 			void			_UpdatePattern(::pattern pattern);
610 
611 			void			_FlushIfNotInTransaction();
612 
613 			bool			_CreateSelf();
614 			bool			_AddChildToList(BView* child, BView* before = NULL);
615 			bool			_RemoveChildFromList(BView* child);
616 
617 			bool			_AddChild(BView *child, BView *before);
618 			bool			_RemoveSelf();
619 
620 			// Debugging methods
621 			void 			PrintToStream();
622 			void			PrintTree();
623 
624 			int32			server_token;
625 			uint32			fFlags;
626 			BPoint			fParentOffset;
627 			BWindow*		fOwner;
628 			BView*			fParent;
629 			BView*			fNextSibling;
630 			BView*			fPreviousSibling;
631 			BView*			fFirstChild;
632 
633 			int16 			fShowLevel;
634 			bool			fTopLevelView;
635 			bool			fNoISInteraction;
636 			BPicture*		cpicture;
637 			_array_data_*	comm;
638 
639 			BScrollBar*		fVerScroller;
640 			BScrollBar*		fHorScroller;
641 			bool			f_is_printing;
642 			bool			fAttached;
643 			bool			_unused_bool1;
644 			bool			_unused_bool2;
645 			BPrivate::ViewState*	fState;
646 			BRect			fBounds;
647 			BShelf*			fShelf;
648 			uint32			fEventMask;
649 			uint32			fEventOptions;
650 
651 			LayoutData*		fLayoutData;
652 
653 			uint32			_reserved[8];
654 };
655 
656 
657 // inline definitions ----------------------------------------------------------
658 
659 inline void
660 BView::ScrollTo(float x, float y)
661 {
662 	ScrollTo(BPoint(x, y));
663 }
664 
665 inline void
666 BView::SetViewColor(uchar r, uchar g, uchar b, uchar a)
667 {
668 	rgb_color color;
669 	color.red = r;		color.green = g;
670 	color.blue = b;		color.alpha = a;
671 	SetViewColor(color);
672 }
673 
674 inline void
675 BView::SetHighColor(uchar r, uchar g, uchar b, uchar a)
676 {
677 	rgb_color color;
678 	color.red = r;		color.green = g;
679 	color.blue = b;		color.alpha = a;
680 	SetHighColor(color);
681 }
682 
683 inline void
684 BView::SetLowColor(uchar r, uchar g, uchar b, uchar a)
685 {
686 	rgb_color color;
687 	color.red = r;		color.green = g;
688 	color.blue = b;		color.alpha = a;
689 	SetLowColor(color);
690 }
691 
692 #endif	// _VIEW_H
693