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1 | ///////////////////////////////////////////////////////////////////////////// | |
2 | // Name: tooltip.cpp | |
3 | // Purpose: wxToolTip implementation | |
4 | // Author: Robert Roebling | |
5 | // Id: $Id$ | |
6 | // Copyright: (c) 1998 Robert Roebling | |
7 | // Licence: wxWindows licence | |
8 | ///////////////////////////////////////////////////////////////////////////// | |
9 | ||
10 | #ifdef __GNUG__ | |
11 | #pragma implementation "tooltip.h" | |
12 | #endif | |
13 | ||
14 | #include "wx/defs.h" | |
15 | ||
16 | #if wxUSE_TOOLTIPS | |
17 | ||
18 | #include "wx/app.h" | |
19 | #include "wx/dc.h" | |
20 | #include "wx/window.h" | |
21 | #include "wx/tooltip.h" | |
22 | #include "wx/timer.h" | |
23 | #include "wx/geometry.h" | |
24 | #include "wx/mac/uma.h" | |
25 | ||
26 | //----------------------------------------------------------------------------- | |
27 | // global data | |
28 | //----------------------------------------------------------------------------- | |
29 | ||
30 | class wxMacToolTipTimer ; | |
31 | ||
32 | class wxMacToolTip | |
33 | { | |
34 | public : | |
35 | wxMacToolTip( ) ; | |
36 | ~wxMacToolTip() ; | |
37 | ||
38 | void Setup( WindowRef window , const wxString& text , wxPoint localPosition ) ; | |
39 | long GetMark() { return m_mark ; } | |
40 | void Draw() ; | |
41 | void Clear() ; | |
42 | bool IsShown() { return m_shown ; } | |
43 | private : | |
44 | ||
45 | wxString m_label ; | |
46 | wxPoint m_position ; | |
47 | Rect m_rect ; | |
48 | WindowRef m_window ; | |
49 | PicHandle m_backpict ; | |
50 | bool m_shown ; | |
51 | long m_mark ; | |
52 | wxMacToolTipTimer* m_timer ; | |
53 | #if TARGET_CARBON | |
54 | wxMacCFStringHolder m_helpTextRef ; | |
55 | #endif | |
56 | } ; | |
57 | ||
58 | class wxMacToolTipTimer : public wxTimer | |
59 | { | |
60 | public: | |
61 | wxMacToolTipTimer() {} ; | |
62 | wxMacToolTipTimer(wxMacToolTip* tip, int iMilliseconds) ; | |
63 | virtual ~wxMacToolTipTimer() {} ; | |
64 | void Notify() | |
65 | { | |
66 | if ( m_mark == m_tip->GetMark() ) | |
67 | m_tip->Draw() ; | |
68 | } | |
69 | protected: | |
70 | wxMacToolTip* m_tip; | |
71 | long m_mark ; | |
72 | }; | |
73 | ||
74 | //----------------------------------------------------------------------------- | |
75 | // wxToolTip | |
76 | //----------------------------------------------------------------------------- | |
77 | static long s_ToolTipDelay = 500 ; | |
78 | static bool s_ShowToolTips = true ; | |
79 | static wxMacToolTip s_ToolTip ; | |
80 | static wxWindow* s_LastWindowEntered = NULL ; | |
81 | static wxRect2DInt s_ToolTipArea ; | |
82 | static WindowRef s_ToolTipWindowRef = NULL ; | |
83 | ||
84 | IMPLEMENT_ABSTRACT_CLASS(wxToolTip, wxObject) | |
85 | ||
86 | wxToolTip::wxToolTip( const wxString &tip ) | |
87 | { | |
88 | m_text = tip; | |
89 | m_window = (wxWindow*) NULL; | |
90 | } | |
91 | ||
92 | wxToolTip::~wxToolTip() | |
93 | { | |
94 | } | |
95 | ||
96 | void wxToolTip::SetTip( const wxString &tip ) | |
97 | { | |
98 | m_text = tip; | |
99 | ||
100 | if ( m_window ) | |
101 | { | |
102 | /* | |
103 | // update it immediately | |
104 | wxToolInfo ti(GetHwndOf(m_window)); | |
105 | ti.lpszText = (wxChar *)m_text.c_str(); | |
106 | ||
107 | (void)SendTooltipMessage(GetToolTipCtrl(), TTM_UPDATETIPTEXT, 0, &ti); | |
108 | */ | |
109 | } | |
110 | } | |
111 | ||
112 | void wxToolTip::SetWindow( wxWindow *win ) | |
113 | { | |
114 | m_window = win ; | |
115 | } | |
116 | ||
117 | void wxToolTip::Enable( bool flag ) | |
118 | { | |
119 | if ( s_ShowToolTips != flag ) | |
120 | { | |
121 | s_ShowToolTips = flag ; | |
122 | if ( s_ShowToolTips ) | |
123 | { | |
124 | } | |
125 | else | |
126 | { | |
127 | s_ToolTip.Clear() ; | |
128 | } | |
129 | } | |
130 | } | |
131 | ||
132 | void wxToolTip::SetDelay( long msecs ) | |
133 | { | |
134 | s_ToolTipDelay = msecs ; | |
135 | } | |
136 | ||
137 | void wxToolTip::RelayEvent( wxWindow *win , wxMouseEvent &event ) | |
138 | { | |
139 | if ( s_ShowToolTips ) | |
140 | { | |
141 | if ( event.GetEventType() == wxEVT_LEAVE_WINDOW ) | |
142 | { | |
143 | s_ToolTip.Clear() ; | |
144 | } | |
145 | else if (event.GetEventType() == wxEVT_ENTER_WINDOW || event.GetEventType() == wxEVT_MOTION ) | |
146 | { | |
147 | wxPoint2DInt where( event.m_x , event.m_y ) ; | |
148 | if ( s_LastWindowEntered == win && s_ToolTipArea.Contains( where ) ) | |
149 | { | |
150 | } | |
151 | else | |
152 | { | |
153 | s_ToolTip.Clear() ; | |
154 | s_ToolTipArea = wxRect2DInt( event.m_x - 2 , event.m_y - 2 , 4 , 4 ) ; | |
155 | s_LastWindowEntered = win ; | |
156 | ||
157 | WindowRef window = MAC_WXHWND( win->MacGetTopLevelWindowRef() ) ; | |
158 | int x = event.m_x ; | |
159 | int y = event.m_y ; | |
160 | wxPoint local( x , y ) ; | |
161 | win->MacClientToRootWindow( &x, &y ) ; | |
162 | wxPoint windowlocal( x , y ) ; | |
163 | s_ToolTip.Setup( window , win->MacGetToolTipString( local ) , windowlocal ) ; | |
164 | } | |
165 | } | |
166 | } | |
167 | } | |
168 | ||
169 | void wxToolTip::RemoveToolTips() | |
170 | { | |
171 | s_ToolTip.Clear() ; | |
172 | } | |
173 | // --- mac specific | |
174 | ||
175 | wxMacToolTipTimer::wxMacToolTipTimer( wxMacToolTip *tip , int msec ) | |
176 | { | |
177 | m_tip = tip; | |
178 | m_mark = tip->GetMark() ; | |
179 | Start(msec, true); | |
180 | } | |
181 | ||
182 | wxMacToolTip::wxMacToolTip() | |
183 | { | |
184 | m_window = NULL ; | |
185 | m_backpict = NULL ; | |
186 | m_mark = 0 ; | |
187 | m_shown = false ; | |
188 | m_timer = NULL ; | |
189 | } | |
190 | ||
191 | void wxMacToolTip::Setup( WindowRef win , const wxString& text , wxPoint localPosition ) | |
192 | { | |
193 | m_mark++ ; | |
194 | Clear() ; | |
195 | m_position = localPosition ; | |
196 | m_label = text ; | |
197 | m_window =win; | |
198 | s_ToolTipWindowRef = m_window ; | |
199 | m_backpict = NULL ; | |
200 | if ( m_timer ) | |
201 | delete m_timer ; | |
202 | m_timer = new wxMacToolTipTimer( this , s_ToolTipDelay ) ; | |
203 | } | |
204 | ||
205 | wxMacToolTip::~wxMacToolTip() | |
206 | { | |
207 | if ( m_timer ) { | |
208 | delete m_timer ; | |
209 | m_timer = NULL; | |
210 | } | |
211 | if ( m_backpict ) | |
212 | Clear() ; | |
213 | } | |
214 | ||
215 | const short kTipBorder = 2 ; | |
216 | const short kTipOffset = 5 ; | |
217 | ||
218 | void wxMacToolTip::Draw() | |
219 | { | |
220 | if ( m_label.Length() == 0 ) | |
221 | return ; | |
222 | ||
223 | if ( m_window == s_ToolTipWindowRef ) | |
224 | { | |
225 | m_shown = true ; | |
226 | #if TARGET_CARBON | |
227 | HMHelpContentRec tag ; | |
228 | tag.version = kMacHelpVersion; | |
229 | SetRect( &tag.absHotRect , m_position.x - 2 , m_position.y - 2 , m_position.x + 2 , m_position.y + 2 ) ; | |
230 | ||
231 | QDLocalToGlobalRect( GetWindowPort( m_window ) , &tag.absHotRect ) ; | |
232 | ||
233 | m_helpTextRef.Assign( m_label , wxFONTENCODING_DEFAULT ) ; | |
234 | tag.content[kHMMinimumContentIndex].contentType = kHMCFStringContent ; | |
235 | tag.content[kHMMinimumContentIndex].u.tagCFString = m_helpTextRef ; | |
236 | tag.content[kHMMaximumContentIndex].contentType = kHMCFStringContent ; | |
237 | tag.content[kHMMaximumContentIndex].u.tagCFString = m_helpTextRef ; | |
238 | tag.tagSide = kHMDefaultSide; | |
239 | HMDisplayTag( &tag ); | |
240 | #else | |
241 | wxMacPortStateHelper help( (GrafPtr) GetWindowPort( m_window ) ); | |
242 | FontFamilyID fontId ; | |
243 | Str255 fontName ; | |
244 | SInt16 fontSize ; | |
245 | Style fontStyle ; | |
246 | GetThemeFont(kThemeSmallSystemFont , GetApplicationScript() , fontName , &fontSize , &fontStyle ) ; | |
247 | GetFNum( fontName, &fontId ); | |
248 | ||
249 | TextFont( fontId ) ; | |
250 | TextSize( fontSize ) ; | |
251 | TextFace( fontStyle ) ; | |
252 | FontInfo fontInfo; | |
253 | ::GetFontInfo(&fontInfo); | |
254 | short lineh = fontInfo.ascent + fontInfo.descent + fontInfo.leading; | |
255 | short height = 0 ; | |
256 | ||
257 | int i = 0 ; | |
258 | int length = m_label.Length() ; | |
259 | int width = 0 ; | |
260 | int thiswidth = 0 ; | |
261 | int laststop = 0 ; | |
262 | wxCharBuffer text = m_label.mb_str( wxConvLocal) ; | |
263 | ||
264 | while( i < length ) | |
265 | { | |
266 | if( text[i] == 13 || text[i] == 10) | |
267 | { | |
268 | thiswidth = ::TextWidth( text , laststop , i - laststop ) ; | |
269 | if ( thiswidth > width ) | |
270 | width = thiswidth ; | |
271 | ||
272 | height += lineh ; | |
273 | laststop = i+1 ; | |
274 | } | |
275 | i++ ; | |
276 | } | |
277 | if ( i - laststop > 0 ) | |
278 | { | |
279 | thiswidth = ::TextWidth( text , laststop , i - laststop ) ; | |
280 | if ( thiswidth > width ) | |
281 | width = thiswidth ; | |
282 | height += lineh ; | |
283 | } | |
284 | ||
285 | m_rect.left = m_position.x + kTipOffset; | |
286 | m_rect.top = m_position.y + kTipOffset; | |
287 | m_rect.right = m_rect.left + width + 2 * kTipBorder; | |
288 | ||
289 | m_rect.bottom = m_rect.top + height + 2 * kTipBorder; | |
290 | Rect r ; | |
291 | GetPortBounds( GetWindowPort( m_window ) , &r ) ; | |
292 | if ( m_rect.top < 0 ) | |
293 | { | |
294 | m_rect.bottom += -m_rect.top ; | |
295 | m_rect.top = 0 ; | |
296 | } | |
297 | if ( m_rect.left < 0 ) | |
298 | { | |
299 | m_rect.right += -m_rect.left ; | |
300 | m_rect.left = 0 ; | |
301 | } | |
302 | if ( m_rect.right > r.right ) | |
303 | { | |
304 | m_rect.left -= (m_rect.right - r.right ) ; | |
305 | m_rect.right = r.right ; | |
306 | } | |
307 | if ( m_rect.bottom > r.bottom ) | |
308 | { | |
309 | m_rect.top -= (m_rect.bottom - r.bottom) ; | |
310 | m_rect.bottom = r.bottom ; | |
311 | } | |
312 | ClipRect( &m_rect ) ; | |
313 | BackColor( whiteColor ) ; | |
314 | ForeColor(blackColor ) ; | |
315 | GWorldPtr port ; | |
316 | NewGWorld( &port , wxDisplayDepth() , &m_rect , NULL , NULL , 0 ) ; | |
317 | CGrafPtr origPort ; | |
318 | GDHandle origDevice ; | |
319 | ||
320 | GetGWorld( &origPort , &origDevice ) ; | |
321 | SetGWorld( port , NULL ) ; | |
322 | ||
323 | m_backpict = OpenPicture(&m_rect); | |
324 | ||
325 | CopyBits(GetPortBitMapForCopyBits(GetWindowPort(m_window)), | |
326 | GetPortBitMapForCopyBits(port), | |
327 | &m_rect, | |
328 | &m_rect, | |
329 | srcCopy, | |
330 | NULL); | |
331 | ClosePicture(); | |
332 | SetGWorld( origPort , origDevice ) ; | |
333 | DisposeGWorld( port ) ; | |
334 | PenNormal() ; | |
335 | ||
336 | RGBColor tooltipbackground = { 0xFFFF , 0xFFFF , 0xC000 } ; | |
337 | BackColor( whiteColor ) ; | |
338 | RGBForeColor( &tooltipbackground ) ; | |
339 | ||
340 | PaintRect( &m_rect ) ; | |
341 | ForeColor(blackColor ) ; | |
342 | FrameRect( &m_rect ) ; | |
343 | SetThemeTextColor(kThemeTextColorNotification,wxDisplayDepth(),true) ; | |
344 | ::MoveTo( m_rect.left + kTipBorder , m_rect.top + fontInfo.ascent + kTipBorder); | |
345 | ||
346 | i = 0 ; | |
347 | laststop = 0 ; | |
348 | height = 0 ; | |
349 | ||
350 | while( i < length ) | |
351 | { | |
352 | if( text[i] == 13 || text[i] == 10) | |
353 | { | |
354 | ::DrawText( text , laststop , i - laststop ) ; | |
355 | height += lineh ; | |
356 | ::MoveTo( m_rect.left + kTipBorder , m_rect.top + fontInfo.ascent + kTipBorder + height ); | |
357 | laststop = i+1 ; | |
358 | } | |
359 | i++ ; | |
360 | } | |
361 | ::DrawText( text , laststop , i - laststop ) ; | |
362 | ::TextMode( srcOr ) ; | |
363 | #endif | |
364 | } | |
365 | } | |
366 | ||
367 | void wxToolTip::NotifyWindowDelete( WXHWND win ) | |
368 | { | |
369 | if ( win == s_ToolTipWindowRef ) | |
370 | { | |
371 | s_ToolTipWindowRef = NULL ; | |
372 | } | |
373 | } | |
374 | ||
375 | void wxMacToolTip::Clear() | |
376 | { | |
377 | m_mark++ ; | |
378 | if ( m_timer ) | |
379 | { | |
380 | delete m_timer ; | |
381 | m_timer = NULL ; | |
382 | } | |
383 | if ( !m_shown ) | |
384 | return ; | |
385 | #if TARGET_CARBON | |
386 | HMHideTag() ; | |
387 | m_helpTextRef.Release() ; | |
388 | #else | |
389 | if ( m_window == s_ToolTipWindowRef && m_backpict ) | |
390 | { | |
391 | wxMacPortStateHelper help( (GrafPtr) GetWindowPort(m_window) ) ; | |
392 | ||
393 | m_shown = false ; | |
394 | ||
395 | BackColor( whiteColor ) ; | |
396 | ForeColor(blackColor ) ; | |
397 | DrawPicture(m_backpict, &m_rect); | |
398 | KillPicture(m_backpict); | |
399 | m_backpict = NULL ; | |
400 | } | |
401 | #endif | |
402 | } | |
403 | ||
404 | #endif | |
405 |