src/mac/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/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  , 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 } ;
  54
  55 class wxMacToolTipTimer : public wxTimer
  56 {
  57 public:
  58     wxMacToolTipTimer() {} ;
  59     wxMacToolTipTimer(wxMacToolTip* tip, int iMilliseconds) ;
  60     virtual ~wxMacToolTipTimer() {} ;
  61     void Notify()
  62     {
  63         if ( m_mark == m_tip->GetMark() )
  64             m_tip->Draw() ;
  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
  81 IMPLEMENT_ABSTRACT_CLASS(wxToolTip, wxObject)
  82
  83 wxToolTip::wxToolTip( const wxString &tip )
  84 {
  85     m_text = tip;
  86     m_window = (wxWindow*) NULL;
  87 }
  88
  89 wxToolTip::~wxToolTip()
  90 {
  91 }
  92
  93 void wxToolTip::SetTip( const wxString &tip )
  94 {
  95      m_text = tip;
  96
  97     if ( m_window )
  98     {
  99         /*
 100         // update it immediately
 101         wxToolInfo ti(GetHwndOf(m_window));
 102         ti.lpszText = (wxChar *)m_text.c_str();
 103
 104         (void)SendTooltipMessage(GetToolTipCtrl(), TTM_UPDATETIPTEXT, 0, &ti);
 105         */
 106     }
 107 }
 108
 109 void wxToolTip::SetWindow( wxWindow *win )
 110 {
 111     m_window = win ;
 112 }
 113
 114 void wxToolTip::Enable( bool flag )
 115 {
 116         if ( s_ShowToolTips != flag )
 117         {
 118                 s_ShowToolTips = flag ;
 119                 if ( s_ShowToolTips )
 120                 {
 121                 }
 122                 else
 123                 {
 124                         s_ToolTip.Clear() ;
 125                 }
 126         }
 127 }
 128
 129 void wxToolTip::SetDelay( long msecs )
 130 {
 131         s_ToolTipDelay = msecs ;
 132 }
 133
 134 void wxToolTip::RelayEvent( wxWindow *win , wxMouseEvent &event )
 135 {
 136         if ( s_ShowToolTips )
 137         {
 138                 if ( event.GetEventType() == wxEVT_LEAVE_WINDOW )
 139                 {
 140                         s_ToolTip.Clear() ;
 141                 }
 142                 else if (event.GetEventType() == wxEVT_ENTER_WINDOW || event.GetEventType() == wxEVT_MOTION )
 143                 {
 144                         wxPoint2DInt where( event.m_x , event.m_y ) ;
 145                         if ( s_LastWindowEntered == win && s_ToolTipArea.Contains( where ) )
 146                         {
 147                         }
 148                         else
 149                         {
 150                                 s_ToolTip.Clear() ;
 151                                 s_ToolTipArea = wxRect2DInt( event.m_x - 2 , event.m_y - 2 , 4 , 4 ) ;
 152                                 s_LastWindowEntered = win ;
 153
 154                                 WindowRef window = MAC_WXHWND( win->MacGetRootWindow() ) ;
 155                                 int x = event.m_x ;
 156                                 int y = event.m_y ;
 157                                 wxPoint local( x , y ) ;
 158                                 win->MacClientToRootWindow( &x, &y ) ;
 159                                 wxPoint windowlocal( x , y ) ;
 160                                 s_ToolTip.Setup( window , win->MacGetToolTipString( local ) , windowlocal ) ;
 161                         }
 162                 }
 163         }
 164 }
 165
 166 void wxToolTip::RemoveToolTips()
 167 {
 168         s_ToolTip.Clear() ;
 169 }
 170 // --- mac specific
 171
 172 wxMacToolTipTimer::wxMacToolTipTimer( wxMacToolTip *tip , int msec )
 173 {
 174         m_tip = tip;
 175         m_mark = tip->GetMark() ;
 176         Start(msec, true);
 177 }
 178
 179 wxMacToolTip::wxMacToolTip()
 180 {
 181         m_window = NULL ;
 182         m_backpict = NULL ;
 183         m_mark = 0 ;
 184         m_shown = false ;
 185     m_timer = NULL ;
 186 }
 187
 188 void wxMacToolTip::Setup( WindowRef win  , wxString text , wxPoint localPosition )
 189 {
 190         m_mark++ ;
 191         Clear() ;
 192         m_position = localPosition ;
 193     if( wxApp::s_macDefaultEncodingIsPC )
 194         m_label = wxMacMakeMacStringFromPC( text ) ;
 195         else
 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 #if TARGET_CARBON
 226 /*
 227           if ( HMDisplayTag != (void*) kUnresolvedCFragSymbolAddress )
 228           {
 229             HMDisplayTag(
 230           }
 231           else
 232 */
 233 #endif
 234           {
 235                 wxMacPortStateHelper help( (GrafPtr) GetWindowPort( m_window ) );
 236 #if TARGET_CARBON
 237                 bool useDrawThemeText =  ( DrawThemeTextBox != (void*) kUnresolvedCFragSymbolAddress ) ;
 238 #endif
 239                 m_shown = true ;
 240
 241         FontFamilyID fontId ;
 242         Str255 fontName ;
 243         SInt16 fontSize ;
 244         Style fontStyle ;
 245         GetThemeFont(kThemeSmallSystemFont , GetApplicationScript() , fontName , &fontSize , &fontStyle ) ;
 246         GetFNum( fontName, &fontId );
 247
 248                 TextFont( fontId ) ;
 249                 TextSize( fontSize ) ;
 250                 TextFace( fontStyle ) ;
 251                 FontInfo fontInfo;
 252                 ::GetFontInfo(&fontInfo);
 253                 short lineh = fontInfo.ascent + fontInfo.descent + fontInfo.leading;
 254                 short height = 0 ;
 255         //      short width = TextWidth( m_label , 0 ,m_label.Length() ) ;
 256
 257                 int i = 0 ;
 258                 int length = m_label.Length() ;
 259                 int width = 0 ;
 260                 int thiswidth = 0 ;
 261                 int laststop = 0 ;
 262                 const char *text = m_label ;
 263                 while( i < length )
 264                 {
 265                         if( text[i] == 13 || text[i] == 10)
 266                         {
 267                                 thiswidth = ::TextWidth( text , laststop , i - laststop ) ;
 268                                 if ( thiswidth > width )
 269                                         width = thiswidth ;
 270
 271                                 height += lineh ;
 272                                 laststop = i+1 ;
 273                         }
 274                         i++ ;
 275                 }
 276                 if ( i - laststop > 0 )
 277                 {
 278                         thiswidth = ::TextWidth( text , laststop , i - laststop ) ;
 279                         if ( thiswidth > width )
 280                                 width = thiswidth ;
 281                         height += lineh ;
 282                 }
 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 #if TARGET_CARBON
 289                 if ( useDrawThemeText )
 290                     m_rect.right += kTipBorder ;
 291 #endif
 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 #if TARGET_CARBON
 358                 if ( useDrawThemeText )
 359                 {
 360                     Rect frame ;
 361                     frame.top = m_rect.top + kTipBorder + height ;
 362                     frame.left = m_rect.left + kTipBorder ;
 363                     frame.bottom = frame.top + 1000 ;
 364                     frame.right = frame.left + 1000 ;
 365                     CFStringRef mString = CFStringCreateWithBytes( NULL , (UInt8*) text + laststop , i - laststop , CFStringGetSystemEncoding(), false ) ;
 366                         ::DrawThemeTextBox( mString,
 367                                                                 kThemeCurrentPortFont,
 368                                                                 kThemeStateActive,
 369                                                                 true,
 370                                                                 &frame,
 371                                                                 teJustLeft,
 372                                                                 nil );
 373                     CFRelease( mString ) ;
 374                                     height += lineh ;
 375                }
 376                 else
 377 #endif
 378                 {
 379                                     ::DrawText( text , laststop , i - laststop ) ;
 380                                     height += lineh ;
 381                                     ::MoveTo( m_rect.left + kTipBorder , m_rect.top + fontInfo.ascent + kTipBorder + height );
 382                                 }
 383                                 laststop = i+1 ;
 384                         }
 385                         i++ ;
 386                 }
 387 #if TARGET_CARBON
 388         if ( useDrawThemeText )
 389         {
 390             Rect frame ;
 391             frame.top = m_rect.top + kTipBorder + height ;
 392             frame.left = m_rect.left + kTipBorder ;
 393             frame.bottom = frame.top + 1000 ;
 394             frame.right = frame.left + 1000 ;
 395             CFStringRef mString = CFStringCreateWithCString( NULL , text + laststop , kCFStringEncodingMacRoman ) ;
 396                 ::DrawThemeTextBox( mString,
 397                                                         kThemeCurrentPortFont,
 398                                                         kThemeStateActive,
 399                                                         true,
 400                                                         &frame,
 401                                                         teJustLeft,
 402                                                         nil );
 403             CFRelease( mString ) ;
 404         }
 405         else
 406 #endif
 407         {
 408                     ::DrawText( text , laststop , i - laststop ) ;
 409                 }
 410                 ::TextMode( srcOr ) ;
 411          }
 412         }
 413 }
 414
 415 void wxToolTip::NotifyWindowDelete( WXHWND win )
 416 {
 417         if ( win == s_ToolTipWindowRef )
 418         {
 419                 s_ToolTipWindowRef = NULL ;
 420         }
 421 }
 422
 423 void wxMacToolTip::Clear()
 424 {
 425         m_mark++ ;
 426         if ( m_timer )
 427         {
 428             delete m_timer ;
 429             m_timer = NULL ;
 430         }
 431         if ( !m_shown )
 432                 return ;
 433
 434         if ( m_window == s_ToolTipWindowRef && m_backpict )
 435         {
 436                 wxMacPortStateHelper help( (GrafPtr) GetWindowPort(m_window) ) ;
 437
 438                 m_shown = false ;
 439
 440                 BackColor( whiteColor ) ;
 441                 ForeColor(blackColor ) ;
 442                 DrawPicture(m_backpict, &m_rect);
 443                 KillPicture(m_backpict);
 444                 m_backpict = NULL ;
 445         }
 446 }
 447
 448 #endif
 449