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->MacGetRootWindow() ;
 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 /*
 214           if ( HMDisplayTag != (void*) kUnresolvedCFragSymbolAddress )
 215           {
 216             HMDisplayTag(
 217           }
 218           else
 219 */
 220 #endif
 221           {
 222                 #if TARGET_CARBON
 223                 AGAPortHelper help( GetWindowPort( m_window ) );
 224                 #else
 225                 AGAPortHelper help( ( m_window ) );
 226                 #endif
 227                 m_shown = true ;
 228
 229                 TextFont( kFontIDGeneva ) ;
 230                 TextSize( 10 ) ;
 231                 TextFace( 0 ) ;
 232                 FontInfo fontInfo;
 233                 ::GetFontInfo(&fontInfo);
 234                 short lineh = fontInfo.ascent + fontInfo.descent + fontInfo.leading;
 235                 short height = 0 ;
 236         //      short width = TextWidth( m_label , 0 ,m_label.Length() ) ;
 237
 238                 int i = 0 ;
 239                 int length = m_label.Length() ;
 240                 int width = 0 ;
 241                 int thiswidth = 0 ;
 242                 int laststop = 0 ;
 243                 const char *text = m_label ;
 244                 while( i < length )
 245                 {
 246                         if( text[i] == 13 || text[i] == 10)
 247                         {
 248                                 thiswidth = ::TextWidth( text , laststop , i - laststop ) ;
 249                                 if ( thiswidth > width )
 250                                         width = thiswidth ;
 251
 252                                 height += lineh ;
 253                                 laststop = i+1 ;
 254                         }
 255                         i++ ;
 256                 }
 257                 if ( i - laststop > 0 )
 258                 {
 259                         thiswidth = ::TextWidth( text , laststop , i - laststop ) ;
 260                         if ( thiswidth > width )
 261                                 width = thiswidth ;
 262                         height += lineh ;
 263                 }
 264
 265
 266                 m_rect.left = m_position.x + kTipOffset;
 267                 m_rect.top = m_position.y + kTipOffset;
 268                 m_rect.right = m_rect.left + width + 2 * kTipBorder;
 269                 m_rect.bottom = m_rect.top + height + 2 * kTipBorder;
 270                 ClipRect( &m_rect ) ;
 271                 BackColor( whiteColor ) ;
 272                 ForeColor(blackColor ) ;
 273                 m_backpict = OpenPicture(&m_rect);
 274
 275                 CopyBits(GetPortBitMapForCopyBits(GetWindowPort(m_window)),
 276                                    GetPortBitMapForCopyBits(GetWindowPort(m_window)),
 277                                    &m_rect,
 278                                    &m_rect,
 279                                    srcCopy,
 280                                    NULL);
 281
 282                 ClosePicture();
 283       PenNormal() ;
 284                 SetThemeBackground(kThemeBrushNotificationWindowBackground,32,true) ;
 285                 SetThemeTextColor(kThemeTextColorNotification,32,true) ;
 286                 EraseRect( &m_rect ) ;
 287                 FrameRect( &m_rect ) ;
 288                 ::MoveTo( m_rect.left + kTipBorder , m_rect.top + fontInfo.ascent + kTipBorder);
 289
 290                 i = 0 ;
 291                 laststop = 0 ;
 292                 height = 0 ;
 293                 while( i < length )
 294                 {
 295                         if( text[i] == 13 || text[i] == 10)
 296                         {
 297                                 ::DrawText( text , laststop , i - laststop ) ;
 298                                 height += lineh ;
 299                                 ::MoveTo( m_rect.left + kTipBorder , m_rect.top + fontInfo.ascent + kTipBorder + height );
 300                                 laststop = i+1 ;
 301                         }
 302                         i++ ;
 303                 }
 304
 305                 ::DrawText( text , laststop , i - laststop ) ;
 306                 ::TextMode( srcOr ) ;
 307         //      DrawText( m_label , 0 , m_label.Length() ) ;
 308         }
 309         }
 310 }
 311
 312 void wxToolTip::NotifyWindowDelete( WindowRef win )
 313 {
 314         if ( win == s_ToolTipWindowRef )
 315         {
 316                 s_ToolTipWindowRef = NULL ;
 317         }
 318 }
 319
 320 void wxMacToolTip::Clear()
 321 {
 322         m_mark++ ;
 323         if ( !m_shown )
 324                 return ;
 325
 326         if ( m_window == s_ToolTipWindowRef && m_backpict )
 327         {
 328                 #if TARGET_CARBON
 329                 AGAPortHelper help( GetWindowPort(m_window) ) ;
 330                 #else
 331                 AGAPortHelper help( (m_window) ) ;
 332                 #endif
 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