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source: GTP/trunk/App/Demos/Geom/include/CEGUI/elements/CEGUIFrameWindow.h @ 1030

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1	/************************************************************************
2	filename: CEGUIFrameWindow.h
3	created: 13/4/2004
4	author: Paul D Turner
5
6	purpose: Interface to base class for FrameWindow
7	*************************************************************************/
8	/*************************************************************************
9	Crazy Eddie's GUI System (http://www.cegui.org.uk)
10	Copyright (C)2004 - 2005 Paul D Turner (paul@cegui.org.uk)
11
12	This library is free software; you can redistribute it and/or
13	modify it under the terms of the GNU Lesser General Public
14	License as published by the Free Software Foundation; either
15	version 2.1 of the License, or (at your option) any later version.
16
17	This library is distributed in the hope that it will be useful,
18	but WITHOUT ANY WARRANTY; without even the implied warranty of
19	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
20	Lesser General Public License for more details.
21
22	You should have received a copy of the GNU Lesser General Public
23	License along with this library; if not, write to the Free Software
24	Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
25	*************************************************************************/
26	#ifndef _CEGUIFrameWindow_h_
27	#define _CEGUIFrameWindow_h_
28
29	#include "CEGUIBase.h"
30	#include "CEGUIWindow.h"
31	#include "elements/CEGUIFrameWindowProperties.h"
32
33
34	#if defined(_MSC_VER)
35	# pragma warning(push)
36	# pragma warning(disable : 4251)
37	#endif
38
39
40	// Start of CEGUI namespace section
41	namespace CEGUI
42	{
43	/*!
44	\brief
45	Abstract base class for a movable, sizable, window with a title-bar and a frame.
46	*/
47	class CEGUIEXPORT FrameWindow : public Window
48	{
49	public:
50	static const String EventNamespace; //!< Namespace for global events
51
52
53	/*************************************************************************
54	Constants
55	*************************************************************************/
56	// additional event names for this window
57	static const String EventRollupToggled; //!< Fired when the rollup (shade) state of the window changes
58	static const String EventCloseClicked; //!< Fired when the close button for the window is clicked.
59
60	// other bits
61	static const float DefaultSizingBorderSize; //!< Default size for the sizing border (in pixels)
62
63
64	/*!
65	\brief
66	Enumeration that defines the set of possible locations for the mouse on a frame windows sizing border.
67	*/
68	enum SizingLocation {
69	SizingNone, //!< Position is not a sizing location.
70	SizingTopLeft, //!< Position will size from the top-left.
71	SizingTopRight, //!< Position will size from the top-right.
72	SizingBottomLeft, //!< Position will size from the bottom left.
73	SizingBottomRight, //!< Position will size from the bottom right.
74	SizingTop, //!< Position will size from the top.
75	SizingLeft, //!< Position will size from the left.
76	SizingBottom, //!< Position will size from the bottom.
77	SizingRight //!< Position will size from the right.
78	};
79
80	/*!
81	\brief
82	Initialises the Window based object ready for use.
83
84	\note
85	This must be called for every window created. Normally this is handled automatically by the WindowFactory for each Window type.
86
87	\return
88	Nothing
89	*/
90	virtual void initialise(void);
91
92
93	/*!
94	\brief
95	Return whether this window is sizable. Note that this requires that the window have an enabled frame and that sizing itself is enabled
96
97	\return
98	true if the window can be sized, false if the window can not be sized
99	*/
100	bool isSizingEnabled(void) const {return d_sizingEnabled && isFrameEnabled();}
101
102
103	/*!
104	\brief
105	Return whether the frame for this window is enabled.
106
107	\return
108	true if the frame for this window is enabled, false if the frame for this window is disabled.
109	*/
110	bool isFrameEnabled(void) const {return d_frameEnabled;}
111
112
113	/*!
114	\brief
115	Return whether the title bar for this window is enabled.
116
117	\return
118	true if the window has a title bar and it is enabled, false if the window has no title bar or if the title bar is disabled.
119	*/
120	bool isTitleBarEnabled(void) const {return (d_titlebar != NULL) && !((Window*)d_titlebar)->isDisabled();}
121
122
123	/*!
124	\brief
125	Return whether this close button for this window is enabled.
126
127	\return
128	true if the window has a close button and it is enabled, false if the window either has no close button or if the close button is disabled.
129	*/
130	bool isCloseButtonEnabled(void) const {return (d_closeButton != NULL) && !((Window*)d_closeButton)->isDisabled();}
131
132
133	/*!
134	\brief
135	Return whether roll up (a.k.a shading) is enabled for this window.
136
137	\return
138	true if roll up is enabled, false if roll up is disabled.
139	*/
140	bool isRollupEnabled(void) const {return d_rollupEnabled;}
141
142
143	/*!
144	\brief
145	Return whether the window is currently rolled up (a.k.a shaded).
146
147	\return
148	true if the window is rolled up, false if the window is not rolled up.
149	*/
150	bool isRolledup(void) const {return d_rolledup;}
151
152
153	/*!
154	\brief
155	Return the thickness of the sizing border.
156
157	\return
158	float value describing the thickness of the sizing border in screen pixels.
159	*/
160	float getSizingBorderThickness(void) const {return d_borderSize;}
161
162
163	/*!
164	\brief
165	Enables or disables sizing for this window.
166
167	\param setting
168	set to true to enable sizing (also requires frame to be enabled), or false to disable sizing.
169
170	\return
171	nothing
172	*/
173	void setSizingEnabled(bool setting);
174
175
176	/*!
177	\brief
178	Enables or disables the frame for this window.
179
180	\param setting
181	set to true to enable the frame for this window, or false to disable the frame for this window.
182
183	\return
184	Nothing.
185	*/
186	void setFrameEnabled(bool setting);
187
188
189	/*!
190	\brief
191	Enables or disables the title bar for the frame window.
192
193	\param setting
194	set to true to enable the title bar (if one is attached), or false to disable the title bar.
195
196	\return
197	Nothing.
198	*/
199	void setTitleBarEnabled(bool setting);
200
201
202	/*!
203	\brief
204	Enables or disables the close button for the frame window.
205
206	\param setting
207	Set to true to enable the close button (if one is attached), or false to disable the close button.
208
209	\return
210	Nothing.
211	*/
212	void setCloseButtonEnabled(bool setting);
213
214
215	/*!
216	\brief
217	Enables or disables roll-up (shading) for this window.
218
219	\param setting
220	Set to true to enable roll-up for the frame window, or false to disable roll-up.
221
222	\return
223	Nothing.
224	*/
225	void setRollupEnabled(bool setting);
226
227
228	/*!
229	\brief
230	Toggles the state of the window between rolled-up (shaded) and normal sizes. This requires roll-up to be enabled.
231
232	\return
233	Nothing
234	*/
235	void toggleRollup(void);
236
237
238	/*!
239	\brief
240	Set the size of the sizing border for this window.
241
242	\param pixels
243	float value specifying the thickness for the sizing border in screen pixels.
244
245	\return
246	Nothing.
247	*/
248	void setSizingBorderThickness(float pixels) {d_borderSize = pixels;}
249
250
251	/*!
252	\brief
253	Set the font to use for the title bar text
254
255	\param name
256	String object holding the name of the font to use.
257
258	\return
259	Nothing.
260	*/
261	void setTitlebarFont(const String& name);
262
263
264	/*!
265	\brief
266	Set the font to use for the title bar text
267
268	\param font
269	Pointer to the font to use.
270
271	\return
272	Nothing.
273	*/
274	void setTitlebarFont(Font* font);
275
276
277	/*!
278	\brief
279	Move the window by the pixel offsets specified in \a offset.
280
281	This is intended for internal system use - it is the method by which the title bar moves the frame window.
282
283	\param offset
284	Vector2 object containing the offsets to apply (offsets are in screen pixels).
285
286	\return
287	Nothing.
288	*/
289	void offsetPixelPosition(const Vector2& offset);
290
291
292	/*!
293	\brief
294	Return whether this FrameWindow can be moved by dragging the title bar.
295
296	\return
297	true if the Window will move when the user drags the title bar, false if the window will not move.
298	*/
299	bool isDragMovingEnabled(void) const {return d_dragMovable;}
300
301
302	/*!
303	\brief
304	Set whether this FrameWindow can be moved by dragging the title bar.
305
306	\param setting
307	true if the Window should move when the user drags the title bar, false if the window should not move.
308
309	\return
310	Nothing.
311	*/
312	void setDragMovingEnabled(bool setting);
313
314
315	/*!
316	\brief
317	Return the font being used for the title bar text
318
319	\return
320	Pointer to the Font being used for the TitleBar on this FrameWindow.
321	*/
322	const Font* getTitlebarFont(void) const;
323
324
325	/*!
326	\brief
327	Return the current colour used for rendering the caption text
328
329	\return
330	colour value that specifies the colour used when rendering the title bar caption text.
331	*/
332	colour getCaptionColour(void) const;
333
334
335	/*!
336	\brief
337	Sets the colour to be used for rendering the caption text.
338
339	\param col
340	colour value that specifies the colour to be used when rendering the title bar caption text.
341
342	\return
343	Nothing.
344	*/
345	void setCaptionColour(colour col);
346
347
348	/*************************************************************************
349	Construction / Destruction
350	*************************************************************************/
351	/*!
352	\brief
353	Constructor for FrameWindow objects.
354	*/
355	FrameWindow(const String& name, const String& type);
356
357	/*!
358	\brief
359	Destructor for FramwWindow objects.
360	*/
361	virtual ~FrameWindow(void);
362
363
364	protected:
365	/*************************************************************************
366	Implementation Functions
367	*************************************************************************/
368	/*!
369	\brief
370	Create a control based upon the Titlebar base class to be used as the title bar for this window.
371
372	\return
373	Pointer to an object who's class derives from Titlebar
374	*/
375	virtual Titlebar* createTitlebar(void) const = 0;
376
377
378	/*!
379	\brief
380	Create a control based upon the PushButton base class, to be used at the close button for the window.
381
382	\return
383	Pointer to an object who's class derives from PushButton.
384	*/
385	virtual PushButton* createCloseButton(void) const = 0;
386
387
388	/*!
389	\brief
390	Setup size and position for the title bar and close button widgets attached to this window
391
392	\return
393	Nothing.
394	*/
395	virtual void layoutComponentWidgets() = 0;
396
397
398	/*!
399	\brief
400	move the window's left edge by 'delta'. The rest of the window does not move, thus this changes the size of the Window.
401
402	\param delta
403	float value that specifies the amount to move the window edge, and in which direction. Positive values make window smaller.
404	*/
405	void moveLeftEdge(float delta);
406
407
408	/*!
409	\brief
410	move the window's right edge by 'delta'. The rest of the window does not move, thus this changes the size of the Window.
411
412	\param delta
413	float value that specifies the amount to move the window edge, and in which direction. Positive values make window larger.
414	*/
415	void moveRightEdge(float delta);
416
417
418	/*!
419	\brief
420	move the window's top edge by 'delta'. The rest of the window does not move, thus this changes the size of the Window.
421
422	\param delta
423	float value that specifies the amount to move the window edge, and in which direction. Positive values make window smaller.
424	*/
425	void moveTopEdge(float delta);
426
427
428	/*!
429	\brief
430	move the window's bottom edge by 'delta'. The rest of the window does not move, thus this changes the size of the Window.
431
432	\param delta
433	float value that specifies the amount to move the window edge, and in which direction. Positive values make window larger.
434	*/
435	void moveBottomEdge(float delta);
436
437
438	/*!
439	\brief
440	check local pixel co-ordinate point 'pt' and return one of the
441	SizingLocation enumerated values depending where the point falls on
442	the sizing border.
443
444	\param pt
445	Point object describing, in pixels, the window relative offset to check.
446
447	\return
448	One of the SizingLocation enumerated values that describe which part of
449	the sizing border that \a pt corresponded to, if any.
450	*/
451	SizingLocation getSizingBorderAtPoint(const Point& pt) const;
452
453
454	/*!
455	\brief
456	return true if given SizingLocation is on left edge.
457
458	\param loc
459	SizingLocation value to be checked.
460
461	\return
462	true if \a loc is on the left edge. false if \a loc is not on the left edge.
463	*/
464	bool isLeftSizingLocation(SizingLocation loc) const {return ((loc == SizingLeft) \|\| (loc == SizingTopLeft) \|\| (loc == SizingBottomLeft));}
465
466
467	/*!
468	\brief
469	return true if given SizingLocation is on right edge.
470
471	\param loc
472	SizingLocation value to be checked.
473
474	\return
475	true if \a loc is on the right edge. false if \a loc is not on the right edge.
476	*/
477	bool isRightSizingLocation(SizingLocation loc) const {return ((loc == SizingRight) \|\| (loc == SizingTopRight) \|\| (loc == SizingBottomRight));}
478
479
480	/*!
481	\brief
482	return true if given SizingLocation is on top edge.
483
484	\param loc
485	SizingLocation value to be checked.
486
487	\return
488	true if \a loc is on the top edge. false if \a loc is not on the top edge.
489	*/
490	bool isTopSizingLocation(SizingLocation loc) const {return ((loc == SizingTop) \|\| (loc == SizingTopLeft) \|\| (loc == SizingTopRight));}
491
492
493	/*!
494	\brief
495	return true if given SizingLocation is on bottom edge.
496
497	\param loc
498	SizingLocation value to be checked.
499
500	\return
501	true if \a loc is on the bottom edge. false if \a loc is not on the bottom edge.
502	*/
503	bool isBottomSizingLocation(SizingLocation loc) const {return ((loc == SizingBottom) \|\| (loc == SizingBottomLeft) \|\| (loc == SizingBottomRight));}
504
505
506	/*!
507	\brief
508	Add frame window specific events
509	*/
510	void addFrameWindowEvents(void);
511
512
513	/*!
514	\brief
515	Method to respond to close button click events and fire our close event
516	*/
517	bool closeClickHandler(const EventArgs& e);
518
519
520	/*!
521	\brief
522	Set the appropriate mouse cursor for the given window-relative pixel point.
523	*/
524	void setCursorForPoint(const Point& pt) const;
525
526
527	/*!
528	\brief
529	Return a Rect that describes, in window relative pixel co-ordinates, the outer edge of the sizing area for this window.
530	*/
531	virtual Rect getSizingRect(void) const {return Rect(0, 0, d_abs_area.getWidth(), d_abs_area.getHeight());}
532
533
534	/*!
535	\brief
536	Return whether this window was inherited from the given class name at some point in the inheritance heirarchy.
537
538	\param class_name
539	The class name that is to be checked.
540
541	\return
542	true if this window was inherited from \a class_name. false if not.
543	*/
544	virtual bool testClassName_impl(const String& class_name) const
545	{
546	if (class_name==(const utf8*)"FrameWindow") return true;
547	return Window::testClassName_impl(class_name);
548	}
549
550
551	/*************************************************************************
552	New events for Frame Windows
553	*************************************************************************/
554	/*!
555	\brief
556	Event generated internally whenever the roll-up / shade state of the window
557	changes.
558	*/
559	virtual void onRollupToggled(WindowEventArgs& e);
560
561
562	/*!
563	\brief
564	Event generated internally whenever the close button is clicked.
565	*/
566	virtual void onCloseClicked(WindowEventArgs& e);
567
568
569	/*************************************************************************
570	Overridden event handlers
571	*************************************************************************/
572	virtual void onMouseMove(MouseEventArgs& e);
573	virtual void onMouseButtonDown(MouseEventArgs& e);
574	virtual void onMouseButtonUp(MouseEventArgs& e);
575	virtual void onCaptureLost(WindowEventArgs& e);
576	virtual void onSized(WindowEventArgs& e);
577	virtual void onParentSized(WindowEventArgs& e);
578
579
580	/*************************************************************************
581	Implementation Data
582	*************************************************************************/
583	// frame data
584	bool d_frameEnabled; //!< true if window frame should be drawn.
585
586	// window roll-up data
587	bool d_rollupEnabled; //!< true if roll-up of window is allowed.
588	bool d_rolledup; //!< true if window is rolled up.
589	Size d_abs_openSize; //!< stores original size of window when rolled-up.
590	Size d_rel_openSize; //!< stores original size of window when rolled-up.
591
592	// drag-sizing data
593	bool d_sizingEnabled; //!< true if sizing is enabled for this window.
594	bool d_beingSized; //!< true if window is being sized.
595	float d_borderSize; //!< thickness of the sizing border around this window
596	Point d_dragPoint; //!< point window is being dragged at.
597
598	// composite controls
599	Titlebar* d_titlebar; //!< points to the title bar widget.
600	PushButton* d_closeButton; //!< points to close button widget.
601
602	// images for cursor when on sizing border
603	const Image* d_nsSizingCursor; //!< North/South sizing cursor image.
604	const Image* d_ewSizingCursor; //!< East/West sizing cursor image.
605	const Image* d_nwseSizingCursor; //!< North-West/South-East cursor image.
606	const Image* d_neswSizingCursor; //!< North-East/South-West cursor image.
607
608	bool d_dragMovable; //!< true if the window will move when dragged by the title bar.
609
610
611	private:
612	/*************************************************************************
613	Static Properties for this class
614	*************************************************************************/
615	static FrameWindowProperties::SizingEnabled d_sizingEnabledProperty;
616	static FrameWindowProperties::FrameEnabled d_frameEnabledProperty;
617	static FrameWindowProperties::TitlebarEnabled d_titlebarEnabledProperty;
618	static FrameWindowProperties::CloseButtonEnabled d_closeButtonEnabledProperty;
619	static FrameWindowProperties::RollUpState d_rollUpStateProperty;
620	static FrameWindowProperties::RollUpEnabled d_rollUpEnabledProperty;
621	static FrameWindowProperties::DragMovingEnabled d_dragMovingEnabledProperty;
622	static FrameWindowProperties::SizingBorderThickness d_sizingBorderThicknessProperty;
623	static FrameWindowProperties::TitlebarFont d_titlebarFontProperty;
624	static FrameWindowProperties::CaptionColour d_captionColourProperty;
625
626
627	/*************************************************************************
628	Private methods
629	*************************************************************************/
630	void addFrameWindowProperties(void);
631	};
632
633	} // End of CEGUI namespace section
634
635	#if defined(_MSC_VER)
636	# pragma warning(pop)
637	#endif
638
639	#endif // end of guard _CEGUIFrameWindow_h_

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