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[wxWidgets.git] / src / mac / carbon / tooltip.cpp
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/setup.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/aga.h"
25 #include "wx/mac/uma.h"
26
27 //-----------------------------------------------------------------------------
28 // global data
29 //-----------------------------------------------------------------------------
30
31 class wxMacToolTip
32 {
33 public :
34 wxMacToolTip( ) ;
35 ~wxMacToolTip() ;
36
37 void Setup( WindowRef window , wxString text , wxPoint localPosition ) ;
38 long GetMark() { return m_mark ; }
39 void Draw() ;
40 void Clear() ;
41 bool IsShown() { return m_shown ; }
42 private :
43
44 wxString m_label ;
45 wxPoint m_position ;
46 Rect m_rect ;
47 WindowRef m_window ;
48 PicHandle m_backpict ;
49 bool m_shown ;
50 long m_mark ;
51 } ;
52
53 class wxMacToolTipTimer : wxTimer
54 {
55 public:
56 wxMacToolTipTimer(wxMacToolTip* tip, int iMilliseconds) ;
57
58 void Notify()
59 {
60 if ( m_mark == m_tip->GetMark() )
61 m_tip->Draw() ;
62
63 delete this;
64 }
65
66 protected:
67 wxMacToolTip* m_tip;
68 long m_mark ;
69 };
70
71 //-----------------------------------------------------------------------------
72 // wxToolTip
73 //-----------------------------------------------------------------------------
74 static long s_ToolTipDelay = 500 ;
75 static bool s_ShowToolTips = true ;
76 static wxMacToolTip s_ToolTip ;
77 static wxWindow* s_LastWindowEntered = NULL ;
78 static wxRect2DInt s_ToolTipArea ;
79 static WindowRef s_ToolTipWindowRef = NULL ;
80 wxToolTip::wxToolTip( const wxString &tip )
81 {
82 m_text = tip;
83 m_window = (wxWindow*) NULL;
84 }
85
86 wxToolTip::~wxToolTip()
87 {
88 }
89
90 void wxToolTip::SetTip( const wxString &tip )
91 {
92 m_text = tip;
93
94 if ( m_window )
95 {
96 /*
97 // update it immediately
98 wxToolInfo ti(GetHwndOf(m_window));
99 ti.lpszText = (wxChar *)m_text.c_str();
100
101 (void)SendTooltipMessage(GetToolTipCtrl(), TTM_UPDATETIPTEXT, 0, &ti);
102 */
103 }
104 }
105
106 void wxToolTip::SetWindow( wxWindow *win )
107 {
108 m_window = win;
109 }
110
111 void wxToolTip::Enable( bool flag )
112 {
113 if ( s_ShowToolTips != flag )
114 {
115 s_ShowToolTips = flag ;
116 if ( s_ShowToolTips )
117 {
118 }
119 else
120 {
121 s_ToolTip.Clear() ;
122 }
123 }
124 }
125
126 void wxToolTip::SetDelay( long msecs )
127 {
128 s_ToolTipDelay = msecs ;
129 }
130
131 void wxToolTip::RelayEvent( wxWindow *win , wxMouseEvent &event )
132 {
133 if ( s_ShowToolTips )
134 {
135 if ( event.GetEventType() == wxEVT_LEAVE_WINDOW )
136 {
137 s_ToolTip.Clear() ;
138 }
139 else if (event.GetEventType() == wxEVT_ENTER_WINDOW || event.GetEventType() == wxEVT_MOTION )
140 {
141 wxPoint2DInt where( event.m_x , event.m_y ) ;
142 if ( s_LastWindowEntered == win && s_ToolTipArea.Contains( where ) )
143 {
144 }
145 else
146 {
147 s_ToolTip.Clear() ;
148 s_ToolTipArea = wxRect2DInt( event.m_x - 2 , event.m_y - 2 , 4 , 4 ) ;
149 s_LastWindowEntered = win ;
150
151 WindowRef window = win->GetMacRootWindow() ;
152 int x = event.m_x ;
153 int y = event.m_y ;
154 wxPoint local( x , y ) ;
155 win->MacClientToRootWindow( &x, &y ) ;
156 wxPoint windowlocal( x , y ) ;
157 s_ToolTip.Setup( window , win->MacGetToolTipString( local ) , windowlocal ) ;
158 }
159 }
160 }
161 }
162
163 void wxToolTip::RemoveToolTips()
164 {
165 s_ToolTip.Clear() ;
166 }
167 // --- mac specific
168
169 wxMacToolTipTimer::wxMacToolTipTimer( wxMacToolTip *tip , int msec )
170 {
171 m_tip = tip;
172 m_mark = tip->GetMark() ;
173 Start(msec, true);
174 }
175
176 wxMacToolTip::wxMacToolTip()
177 {
178 m_window = NULL ;
179 m_backpict = NULL ;
180 m_mark = 0 ;
181 m_shown = false ;
182 }
183
184 void wxMacToolTip::Setup( WindowRef window , wxString text , wxPoint localPosition )
185 {
186 m_mark++ ;
187 Clear() ;
188 m_position = localPosition ;
189 m_label = wxMacMakeMacStringFromPC( text ) ;
190 m_window = window ;
191 s_ToolTipWindowRef = window ;
192 m_backpict = NULL ;
193 new wxMacToolTipTimer( this , s_ToolTipDelay ) ;
194 }
195
196 wxMacToolTip::~wxMacToolTip()
197 {
198 if ( m_backpict )
199 Clear() ;
200 }
201
202 const short kTipBorder = 2 ;
203 const short kTipOffset = 5 ;
204
205 void wxMacToolTip::Draw()
206 {
207 if ( m_label.Length() == 0 )
208 return ;
209
210 if ( m_window == s_ToolTipWindowRef )
211 {
212 #if TARGET_CARBON
213 AGAPortHelper help( GetWindowPort( m_window ) );
214 #else
215 AGAPortHelper help( ( m_window ) );
216 #endif
217 m_shown = true ;
218
219 SetOrigin( 0 , 0 ) ;
220 TextFont( kFontIDGeneva ) ;
221 TextSize( 10 ) ;
222 TextFace( 0 ) ;
223 FontInfo fontInfo;
224 ::GetFontInfo(&fontInfo);
225 short lineh = fontInfo.ascent + fontInfo.descent + fontInfo.leading;
226 short height = 0 ;
227 // short width = TextWidth( m_label , 0 ,m_label.Length() ) ;
228
229 int i = 0 ;
230 int length = m_label.Length() ;
231 int width = 0 ;
232 int thiswidth = 0 ;
233 int laststop = 0 ;
234 const char *text = m_label ;
235 while( i < length )
236 {
237 if( text[i] == 13 || text[i] == 10)
238 {
239 thiswidth = ::TextWidth( text , laststop , i - laststop ) ;
240 if ( thiswidth > width )
241 width = thiswidth ;
242
243 height += lineh ;
244 laststop = i+1 ;
245 }
246 i++ ;
247 }
248 if ( i - laststop > 0 )
249 {
250 thiswidth = ::TextWidth( text , laststop , i - laststop ) ;
251 if ( thiswidth > width )
252 width = thiswidth ;
253 height += lineh ;
254 }
255
256
257 m_rect.left = m_position.x + kTipOffset;
258 m_rect.top = m_position.y + kTipOffset;
259 m_rect.right = m_rect.left + width + 2 * kTipBorder;
260 m_rect.bottom = m_rect.top + height + 2 * kTipBorder;
261 ClipRect( &m_rect ) ;
262 BackColor( whiteColor ) ;
263 ForeColor(blackColor ) ;
264 m_backpict = OpenPicture(&m_rect);
265
266 CopyBits(GetPortBitMapForCopyBits(GetWindowPort(m_window)),
267 GetPortBitMapForCopyBits(GetWindowPort(m_window)),
268 &m_rect,
269 &m_rect,
270 srcCopy,
271 NULL);
272
273 ClosePicture();
274 RGBColor yellow = { 0xFFFF , 0xFFFF , (153<<8)+153 } ;
275 RGBBackColor( &yellow ) ;
276 EraseRect( &m_rect ) ;
277 FrameRect( &m_rect ) ;
278 BackColor( whiteColor ) ;
279 ForeColor(blackColor ) ;
280 ::MoveTo( m_rect.left + kTipBorder , m_rect.top + fontInfo.ascent + kTipBorder);
281
282 i = 0 ;
283 laststop = 0 ;
284 height = 0 ;
285 while( i < length )
286 {
287 if( text[i] == 13 || text[i] == 10)
288 {
289 ::DrawText( text , laststop , i - laststop ) ;
290 height += lineh ;
291 ::MoveTo( m_rect.left + kTipBorder , m_rect.top + fontInfo.ascent + kTipBorder + height );
292 laststop = i+1 ;
293 }
294 i++ ;
295 }
296
297 ::DrawText( text , laststop , i - laststop ) ;
298 ::TextMode( srcOr ) ;
299 // DrawText( m_label , 0 , m_label.Length() ) ;
300 }
301 }
302
303 void wxToolTip::NotifyWindowDelete( WindowRef win )
304 {
305 if ( win == s_ToolTipWindowRef )
306 {
307 s_ToolTipWindowRef = NULL ;
308 }
309 }
310
311 void wxMacToolTip::Clear()
312 {
313 m_mark++ ;
314 if ( !m_shown )
315 return ;
316
317 if ( m_window == s_ToolTipWindowRef && m_backpict )
318 {
319 #if TARGET_CARBON
320 AGAPortHelper help( GetWindowPort(m_window) ) ;
321 #else
322 AGAPortHelper help( (m_window) ) ;
323 #endif
324 m_shown = false ;
325
326 SetOrigin( 0 , 0 ) ;
327 BackColor( whiteColor ) ;
328 ForeColor(blackColor ) ;
329 DrawPicture(m_backpict, &m_rect);
330 KillPicture(m_backpict);
331 m_backpict = NULL ;
332 }
333 }
334
335 #endif
336