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/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/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 : wxTimer
  56 {
  57 public:
  58         wxMacToolTipTimer(wxMacToolTip* tip, int iMilliseconds) ;
  59
  60         void Notify()
  61         {
  62                 if ( m_mark == m_tip->GetMark() )
  63                         m_tip->Draw() ;
  64
  65         }
  66
  67 protected:
  68         wxMacToolTip*   m_tip;
  69         long                    m_mark ;
  70 };
  71
  72 //-----------------------------------------------------------------------------
  73 // wxToolTip
  74 //-----------------------------------------------------------------------------
  75 static long s_ToolTipDelay = 500 ;
  76 static bool s_ShowToolTips = true ;
  77 static wxMacToolTip s_ToolTip ;
  78 static wxWindow* s_LastWindowEntered = NULL ;
  79 static wxRect2DInt s_ToolTipArea ;
  80 static WindowRef s_ToolTipWindowRef = NULL ;
  81 wxToolTip::wxToolTip( const wxString &tip )
  82 {
  83     m_text = tip;
  84     m_window = (wxWindow*) NULL;
  85 }
  86
  87 wxToolTip::~wxToolTip()
  88 {
  89 }
  90
  91 void wxToolTip::SetTip( const wxString &tip )
  92 {
  93      m_text = tip;
  94
  95     if ( m_window )
  96     {
  97         /*
  98         // update it immediately
  99         wxToolInfo ti(GetHwndOf(m_window));
 100         ti.lpszText = (wxChar *)m_text.c_str();
 101
 102         (void)SendTooltipMessage(GetToolTipCtrl(), TTM_UPDATETIPTEXT, 0, &ti);
 103         */
 104     }
 105 }
 106
 107 void wxToolTip::SetWindow( wxWindow *win )
 108 {
 109     m_window = win;
 110 }
 111
 112 void wxToolTip::Enable( bool flag )
 113 {
 114         if ( s_ShowToolTips != flag )
 115         {
 116                 s_ShowToolTips = flag ;
 117                 if ( s_ShowToolTips )
 118                 {
 119                 }
 120                 else
 121                 {
 122                         s_ToolTip.Clear() ;
 123                 }
 124         }
 125 }
 126
 127 void wxToolTip::SetDelay( long msecs )
 128 {
 129         s_ToolTipDelay = msecs ;
 130 }
 131
 132 void wxToolTip::RelayEvent( wxWindow *win , wxMouseEvent &event )
 133 {
 134         if ( s_ShowToolTips )
 135         {
 136                 if ( event.GetEventType() == wxEVT_LEAVE_WINDOW )
 137                 {
 138                         s_ToolTip.Clear() ;
 139                 }
 140                 else if (event.GetEventType() == wxEVT_ENTER_WINDOW || event.GetEventType() == wxEVT_MOTION )
 141                 {
 142                         wxPoint2DInt where( event.m_x , event.m_y ) ;
 143                         if ( s_LastWindowEntered == win && s_ToolTipArea.Contains( where ) )
 144                         {
 145                         }
 146                         else
 147                         {
 148                                 s_ToolTip.Clear() ;
 149                                 s_ToolTipArea = wxRect2DInt( event.m_x - 2 , event.m_y - 2 , 4 , 4 ) ;
 150                                 s_LastWindowEntered = win ;
 151
 152                                 WindowRef window = MAC_WXHWND( win->MacGetRootWindow() ) ;
 153                                 int x = event.m_x ;
 154                                 int y = event.m_y ;
 155                                 wxPoint local( x , y ) ;
 156                                 win->MacClientToRootWindow( &x, &y ) ;
 157                                 wxPoint windowlocal( x , y ) ;
 158                                 s_ToolTip.Setup( window , win->MacGetToolTipString( local ) , windowlocal ) ;
 159                         }
 160                 }
 161         }
 162 }
 163
 164 void wxToolTip::RemoveToolTips()
 165 {
 166         s_ToolTip.Clear() ;
 167 }
 168 // --- mac specific
 169
 170 wxMacToolTipTimer::wxMacToolTipTimer( wxMacToolTip *tip , int msec )
 171 {
 172         m_tip = tip;
 173         m_mark = tip->GetMark() ;
 174         Start(msec, true);
 175 }
 176
 177 wxMacToolTip::wxMacToolTip()
 178 {
 179         m_window = NULL ;
 180         m_backpict = NULL ;
 181         m_mark = 0 ;
 182         m_shown = false ;
 183     m_timer = NULL ;
 184 }
 185
 186 void wxMacToolTip::Setup( WindowRef window  , wxString text , wxPoint localPosition )
 187 {
 188         m_mark++ ;
 189         Clear() ;
 190         m_position = localPosition ;
 191         m_label = wxMacMakeMacStringFromPC( text ) ;
 192         m_window = window ;
 193         s_ToolTipWindowRef = window ;
 194         m_backpict = NULL ;
 195         if ( m_timer )
 196             delete m_timer ;
 197         m_timer = new wxMacToolTipTimer( this , s_ToolTipDelay ) ;
 198 }
 199
 200 wxMacToolTip::~wxMacToolTip()
 201 {
 202     if ( m_timer )
 203         delete m_timer ;
 204         if ( m_backpict )
 205                 Clear() ;
 206 }
 207
 208 const short kTipBorder = 2 ;
 209 const short kTipOffset = 5 ;
 210
 211 void wxMacToolTip::Draw()
 212 {
 213         if ( m_label.Length() == 0 )
 214                 return ;
 215
 216         if ( m_window == s_ToolTipWindowRef )
 217         {
 218 #if TARGET_CARBON
 219 /*
 220           if ( HMDisplayTag != (void*) kUnresolvedCFragSymbolAddress )
 221           {
 222             HMDisplayTag(
 223           }
 224           else
 225 */
 226 #endif
 227           {
 228                 wxMacPortStateHelper help( GetWindowPort( m_window ) );
 229
 230                 m_shown = true ;
 231
 232                 TextFont( kFontIDGeneva ) ;
 233                 TextSize( 10 ) ;
 234                 TextFace( 0 ) ;
 235                 FontInfo fontInfo;
 236                 ::GetFontInfo(&fontInfo);
 237                 short lineh = fontInfo.ascent + fontInfo.descent + fontInfo.leading;
 238                 short height = 0 ;
 239         //      short width = TextWidth( m_label , 0 ,m_label.Length() ) ;
 240
 241                 int i = 0 ;
 242                 int length = m_label.Length() ;
 243                 int width = 0 ;
 244                 int thiswidth = 0 ;
 245                 int laststop = 0 ;
 246                 const char *text = m_label ;
 247                 while( i < length )
 248                 {
 249                         if( text[i] == 13 || text[i] == 10)
 250                         {
 251                                 thiswidth = ::TextWidth( text , laststop , i - laststop ) ;
 252                                 if ( thiswidth > width )
 253                                         width = thiswidth ;
 254
 255                                 height += lineh ;
 256                                 laststop = i+1 ;
 257                         }
 258                         i++ ;
 259                 }
 260                 if ( i - laststop > 0 )
 261                 {
 262                         thiswidth = ::TextWidth( text , laststop , i - laststop ) ;
 263                         if ( thiswidth > width )
 264                                 width = thiswidth ;
 265                         height += lineh ;
 266                 }
 267
 268
 269                 m_rect.left = m_position.x + kTipOffset;
 270                 m_rect.top = m_position.y + kTipOffset;
 271                 m_rect.right = m_rect.left + width + 2 * kTipBorder;
 272                 m_rect.bottom = m_rect.top + height + 2 * kTipBorder;
 273                 ClipRect( &m_rect ) ;
 274                 BackColor( whiteColor ) ;
 275                 ForeColor(blackColor ) ;
 276                 m_backpict = OpenPicture(&m_rect);
 277
 278                 CopyBits(GetPortBitMapForCopyBits(GetWindowPort(m_window)),
 279                                    GetPortBitMapForCopyBits(GetWindowPort(m_window)),
 280                                    &m_rect,
 281                                    &m_rect,
 282                                    srcCopy,
 283                                    NULL);
 284
 285                 ClosePicture();
 286       PenNormal() ;
 287                 SetThemeBackground(kThemeBrushNotificationWindowBackground,32,true) ;
 288                 SetThemeTextColor(kThemeTextColorNotification,32,true) ;
 289                 EraseRect( &m_rect ) ;
 290                 FrameRect( &m_rect ) ;
 291                 ::MoveTo( m_rect.left + kTipBorder , m_rect.top + fontInfo.ascent + kTipBorder);
 292
 293                 i = 0 ;
 294                 laststop = 0 ;
 295                 height = 0 ;
 296                 while( i < length )
 297                 {
 298                         if( text[i] == 13 || text[i] == 10)
 299                         {
 300                                 ::DrawText( text , laststop , i - laststop ) ;
 301                                 height += lineh ;
 302                                 ::MoveTo( m_rect.left + kTipBorder , m_rect.top + fontInfo.ascent + kTipBorder + height );
 303                                 laststop = i+1 ;
 304                         }
 305                         i++ ;
 306                 }
 307
 308                 ::DrawText( text , laststop , i - laststop ) ;
 309                 ::TextMode( srcOr ) ;
 310         //      DrawText( m_label , 0 , m_label.Length() ) ;
 311         }
 312         }
 313 }
 314
 315 void wxToolTip::NotifyWindowDelete( WXHWND win )
 316 {
 317         if ( win == s_ToolTipWindowRef )
 318         {
 319                 s_ToolTipWindowRef = NULL ;
 320         }
 321 }
 322
 323 void wxMacToolTip::Clear()
 324 {
 325         m_mark++ ;
 326         if ( !m_shown )
 327                 return ;
 328
 329         if ( m_window == s_ToolTipWindowRef && m_backpict )
 330         {
 331                 wxMacPortStateHelper help( GetWindowPort(m_window) ) ;
 332
 333                 m_shown = false ;
 334
 335                 BackColor( whiteColor ) ;
 336                 ForeColor(blackColor ) ;
 337                 DrawPicture(m_backpict, &m_rect);
 338                 KillPicture(m_backpict);
 339                 m_backpict = NULL ;
 340         }
 341 }
 342
 343 #endif
 344