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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
30class wxMacToolTipTimer ;
31
32class 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
58class wxMacToolTipTimer : public wxTimer
59{
60public:
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 }
69protected:
70 wxMacToolTip* m_tip;
71 long m_mark ;
72};
73
74//-----------------------------------------------------------------------------
75// wxToolTip
76//-----------------------------------------------------------------------------
77static long s_ToolTipDelay = 500 ;
78static bool s_ShowToolTips = true ;
79static wxMacToolTip s_ToolTip ;
80static wxWindow* s_LastWindowEntered = NULL ;
81static wxRect2DInt s_ToolTipArea ;
82static WindowRef s_ToolTipWindowRef = NULL ;
83
84IMPLEMENT_ABSTRACT_CLASS(wxToolTip, wxObject)
85
86wxToolTip::wxToolTip( const wxString &tip )
87{
88 m_text = tip;
89 m_window = (wxWindow*) NULL;
90}
91
92wxToolTip::~wxToolTip()
93{
94}
95
96void 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
112void wxToolTip::SetWindow( wxWindow *win )
113{
114 m_window = win ;
115}
116
117void 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
132void wxToolTip::SetDelay( long msecs )
133{
134 s_ToolTipDelay = msecs ;
135}
136
137void 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->MacGetRootWindow() ) ;
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
169void wxToolTip::RemoveToolTips()
170{
171 s_ToolTip.Clear() ;
172}
173// --- mac specific
174
175wxMacToolTipTimer::wxMacToolTipTimer( wxMacToolTip *tip , int msec )
176{
177 m_tip = tip;
178 m_mark = tip->GetMark() ;
179 Start(msec, true);
180}
181
182wxMacToolTip::wxMacToolTip()
183{
184 m_window = NULL ;
185 m_backpict = NULL ;
186 m_mark = 0 ;
187 m_shown = false ;
188 m_timer = NULL ;
189}
190
191void 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
205wxMacToolTip::~wxMacToolTip()
206{
207 if ( m_timer ) {
208 delete m_timer ;
209 m_timer = NULL;
210 }
211 if ( m_backpict )
212 Clear() ;
213}
214
215const short kTipBorder = 2 ;
216const short kTipOffset = 5 ;
217
218void 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 GrafPtr port ;
231 GetPort( &port ) ;
232 SetPortWindowPort(m_window) ;
233 LocalToGlobal( (Point *) &tag.absHotRect.top );
234 LocalToGlobal( (Point *) &tag.absHotRect.bottom );
235 SetPort( port );
236 m_helpTextRef.Assign( m_label , wxFONTENCODING_DEFAULT ) ;
237 tag.content[kHMMinimumContentIndex].contentType = kHMCFStringContent ;
238 tag.content[kHMMinimumContentIndex].u.tagCFString = m_helpTextRef ;
239 tag.content[kHMMaximumContentIndex].contentType = kHMCFStringContent ;
240 tag.content[kHMMaximumContentIndex].u.tagCFString = m_helpTextRef ;
241 tag.tagSide = kHMDefaultSide;
242 HMDisplayTag( &tag );
243#else
244 wxMacPortStateHelper help( (GrafPtr) GetWindowPort( m_window ) );
245 FontFamilyID fontId ;
246 Str255 fontName ;
247 SInt16 fontSize ;
248 Style fontStyle ;
249 GetThemeFont(kThemeSmallSystemFont , GetApplicationScript() , fontName , &fontSize , &fontStyle ) ;
250 GetFNum( fontName, &fontId );
251
252 TextFont( fontId ) ;
253 TextSize( fontSize ) ;
254 TextFace( fontStyle ) ;
255 FontInfo fontInfo;
256 ::GetFontInfo(&fontInfo);
257 short lineh = fontInfo.ascent + fontInfo.descent + fontInfo.leading;
258 short height = 0 ;
259
260 int i = 0 ;
261 int length = m_label.Length() ;
262 int width = 0 ;
263 int thiswidth = 0 ;
264 int laststop = 0 ;
265 wxCharBuffer text = m_label.mb_str( wxConvLocal) ;
266
267 while( i < length )
268 {
269 if( text[i] == 13 || text[i] == 10)
270 {
271 thiswidth = ::TextWidth( text , laststop , i - laststop ) ;
272 if ( thiswidth > width )
273 width = thiswidth ;
274
275 height += lineh ;
276 laststop = i+1 ;
277 }
278 i++ ;
279 }
280 if ( i - laststop > 0 )
281 {
282 thiswidth = ::TextWidth( text , laststop , i - laststop ) ;
283 if ( thiswidth > width )
284 width = thiswidth ;
285 height += lineh ;
286 }
287
288 m_rect.left = m_position.x + kTipOffset;
289 m_rect.top = m_position.y + kTipOffset;
290 m_rect.right = m_rect.left + width + 2 * kTipBorder;
291
292 m_rect.bottom = m_rect.top + height + 2 * kTipBorder;
293 Rect r ;
294 GetPortBounds( GetWindowPort( m_window ) , &r ) ;
295 if ( m_rect.top < 0 )
296 {
297 m_rect.bottom += -m_rect.top ;
298 m_rect.top = 0 ;
299 }
300 if ( m_rect.left < 0 )
301 {
302 m_rect.right += -m_rect.left ;
303 m_rect.left = 0 ;
304 }
305 if ( m_rect.right > r.right )
306 {
307 m_rect.left -= (m_rect.right - r.right ) ;
308 m_rect.right = r.right ;
309 }
310 if ( m_rect.bottom > r.bottom )
311 {
312 m_rect.top -= (m_rect.bottom - r.bottom) ;
313 m_rect.bottom = r.bottom ;
314 }
315 ClipRect( &m_rect ) ;
316 BackColor( whiteColor ) ;
317 ForeColor(blackColor ) ;
318 GWorldPtr port ;
319 NewGWorld( &port , wxDisplayDepth() , &m_rect , NULL , NULL , 0 ) ;
320 CGrafPtr origPort ;
321 GDHandle origDevice ;
322
323 GetGWorld( &origPort , &origDevice ) ;
324 SetGWorld( port , NULL ) ;
325
326 m_backpict = OpenPicture(&m_rect);
327
328 CopyBits(GetPortBitMapForCopyBits(GetWindowPort(m_window)),
329 GetPortBitMapForCopyBits(port),
330 &m_rect,
331 &m_rect,
332 srcCopy,
333 NULL);
334 ClosePicture();
335 SetGWorld( origPort , origDevice ) ;
336 DisposeGWorld( port ) ;
337 PenNormal() ;
338
339 RGBColor tooltipbackground = { 0xFFFF , 0xFFFF , 0xC000 } ;
340 BackColor( whiteColor ) ;
341 RGBForeColor( &tooltipbackground ) ;
342
343 PaintRect( &m_rect ) ;
344 ForeColor(blackColor ) ;
345 FrameRect( &m_rect ) ;
346 SetThemeTextColor(kThemeTextColorNotification,wxDisplayDepth(),true) ;
347 ::MoveTo( m_rect.left + kTipBorder , m_rect.top + fontInfo.ascent + kTipBorder);
348
349 i = 0 ;
350 laststop = 0 ;
351 height = 0 ;
352
353 while( i < length )
354 {
355 if( text[i] == 13 || text[i] == 10)
356 {
357 ::DrawText( text , laststop , i - laststop ) ;
358 height += lineh ;
359 ::MoveTo( m_rect.left + kTipBorder , m_rect.top + fontInfo.ascent + kTipBorder + height );
360 laststop = i+1 ;
361 }
362 i++ ;
363 }
364 ::DrawText( text , laststop , i - laststop ) ;
365 ::TextMode( srcOr ) ;
366#endif
367 }
368}
369
370void wxToolTip::NotifyWindowDelete( WXHWND win )
371{
372 if ( win == s_ToolTipWindowRef )
373 {
374 s_ToolTipWindowRef = NULL ;
375 }
376}
377
378void wxMacToolTip::Clear()
379{
380 m_mark++ ;
381 if ( m_timer )
382 {
383 delete m_timer ;
384 m_timer = NULL ;
385 }
386 if ( !m_shown )
387 return ;
388#if TARGET_CARBON
389 HMHideTag() ;
390 m_helpTextRef.Release() ;
391#else
392 if ( m_window == s_ToolTipWindowRef && m_backpict )
393 {
394 wxMacPortStateHelper help( (GrafPtr) GetWindowPort(m_window) ) ;
395
396 m_shown = false ;
397
398 BackColor( whiteColor ) ;
399 ForeColor(blackColor ) ;
400 DrawPicture(m_backpict, &m_rect);
401 KillPicture(m_backpict);
402 m_backpict = NULL ;
403 }
404#endif
405}
406
407#endif
408