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/window.h"
  19 #include "wx/tooltip.h"
  20 #include "wx/geometry.h"
  21 #include "wx/mac/aga.h"
  22 #include "wx/mac/uma.h"
  23
  24 //-----------------------------------------------------------------------------
  25 // global data
  26 //-----------------------------------------------------------------------------
  27
  28 class wxMacToolTip
  29 {
  30         public :
  31                 wxMacToolTip( ) ;
  32                 ~wxMacToolTip() ;
  33
  34                 void                    Setup( WindowRef window  , wxString text , wxPoint localPosition ) ;
  35                 long                    GetMark() { return m_mark ; }
  36                 void                    Draw() ;
  37                 void                    Clear() ;
  38                 bool                    IsShown() { return m_shown  ; }
  39         private :
  40
  41                 wxString        m_label ;
  42                 wxPoint m_position ;
  43                 Rect                    m_rect ;
  44                 WindowRef       m_window ;
  45                 PicHandle       m_backpict ;
  46                 bool            m_shown ;
  47                 long            m_mark ;
  48 } ;
  49
  50 class wxMacToolTipTimer : wxTimer
  51 {
  52 public:
  53         wxMacToolTipTimer(wxMacToolTip* tip, int iMilliseconds) ;
  54
  55         void Notify()
  56         {
  57                 if ( m_mark == m_tip->GetMark() )
  58                         m_tip->Draw() ;
  59
  60                 delete this;
  61         }
  62
  63 protected:
  64         wxMacToolTip*   m_tip;
  65         long                    m_mark ;
  66 };
  67
  68 //-----------------------------------------------------------------------------
  69 // wxToolTip
  70 //-----------------------------------------------------------------------------
  71 static long s_ToolTipDelay = 500 ;
  72 static bool s_ShowToolTips = true ;
  73 static wxMacToolTip s_ToolTip ;
  74 static wxWindow* s_LastWindowEntered = NULL ;
  75 static wxRect2DInt s_ToolTipArea ;
  76 static WindowRef s_ToolTipWindowRef = NULL ;
  77 wxToolTip::wxToolTip( const wxString &tip )
  78 {
  79     m_text = tip;
  80     m_window = (wxWindow*) NULL;
  81 }
  82
  83 wxToolTip::~wxToolTip()
  84 {
  85 }
  86
  87 void wxToolTip::SetTip( const wxString &tip )
  88 {
  89      m_text = tip;
  90
  91     if ( m_window )
  92     {
  93         /*
  94         // update it immediately
  95         wxToolInfo ti(GetHwndOf(m_window));
  96         ti.lpszText = (wxChar *)m_text.c_str();
  97
  98         (void)SendTooltipMessage(GetToolTipCtrl(), TTM_UPDATETIPTEXT, 0, &ti);
  99         */
 100     }
 101 }
 102
 103 void wxToolTip::SetWindow( wxWindow *win )
 104 {
 105     m_window = win;
 106 }
 107
 108 void wxToolTip::Enable( bool flag )
 109 {
 110         if ( s_ShowToolTips != flag )
 111         {
 112                 s_ShowToolTips = flag ;
 113                 if ( s_ShowToolTips )
 114                 {
 115                 }
 116                 else
 117                 {
 118                         s_ToolTip.Clear() ;
 119                 }
 120         }
 121 }
 122
 123 void wxToolTip::SetDelay( long msecs )
 124 {
 125         s_ToolTipDelay = msecs ;
 126 }
 127
 128 void wxToolTip::RelayEvent( wxWindow *win , wxMouseEvent &event )
 129 {
 130         if ( s_ShowToolTips )
 131         {
 132                 if ( event.GetEventType() == wxEVT_LEAVE_WINDOW )
 133                 {
 134                         s_ToolTip.Clear() ;
 135                 }
 136                 else if (event.GetEventType() == wxEVT_ENTER_WINDOW || event.GetEventType() == wxEVT_MOTION )
 137                 {
 138                         wxPoint2DInt where( event.m_x , event.m_y ) ;
 139                         if ( s_LastWindowEntered == win && s_ToolTipArea.Contains( where ) )
 140                         {
 141                         }
 142                         else
 143                         {
 144                                 s_ToolTip.Clear() ;
 145                                 s_ToolTipArea = wxRect2DInt( event.m_x - 2 , event.m_y - 2 , 4 , 4 ) ;
 146                                 s_LastWindowEntered = win ;
 147
 148                                 WindowRef window = win->GetMacRootWindow() ;
 149                                 int x = event.m_x ;
 150                                 int y = event.m_y ;
 151                                 wxPoint local( x , y ) ;
 152                                 win->MacClientToRootWindow( &x, &y ) ;
 153                                 wxPoint windowlocal( x , y ) ;
 154                                 s_ToolTip.Setup( window , win->MacGetToolTipString( local ) , windowlocal ) ;
 155                         }
 156                 }
 157         }
 158 }
 159
 160 void wxToolTip::RemoveToolTips()
 161 {
 162         s_ToolTip.Clear() ;
 163 }
 164 // --- mac specific
 165
 166 wxMacToolTipTimer::wxMacToolTipTimer( wxMacToolTip *tip , int msec )
 167 {
 168         m_tip = tip;
 169         m_mark = tip->GetMark() ;
 170         Start(msec, true);
 171 }
 172
 173 wxMacToolTip::wxMacToolTip()
 174 {
 175         m_window = NULL ;
 176         m_backpict = NULL ;
 177         m_mark = 0 ;
 178         m_shown = false ;
 179 }
 180
 181 void wxMacToolTip::Setup( WindowRef window  , wxString text , wxPoint localPosition )
 182 {
 183         m_mark++ ;
 184         Clear() ;
 185         m_position = localPosition ;
 186         m_label = wxMacMakeMacStringFromPC( text ) ;
 187         m_window = window ;
 188         s_ToolTipWindowRef = window ;
 189         m_backpict = NULL ;
 190         new wxMacToolTipTimer( this , s_ToolTipDelay ) ;
 191 }
 192
 193 wxMacToolTip::~wxMacToolTip()
 194 {
 195         if ( m_backpict )
 196                 Clear() ;
 197 }
 198
 199 const short kTipBorder = 2 ;
 200 const short kTipOffset = 5 ;
 201
 202 void wxMacToolTip::Draw()
 203 {
 204         if ( m_label.Length() == 0 )
 205                 return ;
 206
 207         if ( m_window == s_ToolTipWindowRef )
 208         {
 209                 #if TARGET_CARBON
 210                 AGAPortHelper help( GetWindowPort( m_window ) );
 211                 #else
 212                 AGAPortHelper help( ( m_window ) );
 213                 #endif
 214                 m_shown = true ;
 215
 216                 SetOrigin( 0 , 0 ) ;
 217                 TextFont( kFontIDGeneva ) ;
 218                 TextSize( 9 ) ;
 219                 TextFace( 0 ) ;
 220                 FontInfo fontInfo;
 221                 ::GetFontInfo(&fontInfo);
 222                 short lineh = fontInfo.ascent + fontInfo.descent + fontInfo.leading;
 223                 short height = 0 ;
 224         //      short width = TextWidth( m_label , 0 ,m_label.Length() ) ;
 225
 226                 int i = 0 ;
 227                 int length = m_label.Length() ;
 228                 int width = 0 ;
 229                 int thiswidth = 0 ;
 230                 int laststop = 0 ;
 231                 const char *text = m_label ;
 232                 while( i < length )
 233                 {
 234                         if( text[i] == 13 || text[i] == 10)
 235                         {
 236                                 thiswidth = ::TextWidth( text , laststop , i - laststop ) ;
 237                                 if ( thiswidth > width )
 238                                         width = thiswidth ;
 239
 240                                 height += lineh ;
 241                                 laststop = i+1 ;
 242                         }
 243                         i++ ;
 244                 }
 245                 if ( i - laststop > 0 )
 246                 {
 247                         thiswidth = ::TextWidth( text , laststop , i - laststop ) ;
 248                         if ( thiswidth > width )
 249                                 width = thiswidth ;
 250                         height += lineh ;
 251                 }
 252
 253
 254                 m_rect.left = m_position.x + kTipOffset;
 255                 m_rect.top = m_position.y + kTipOffset;
 256                 m_rect.right = m_rect.left + width + 2 * kTipBorder;
 257                 m_rect.bottom = m_rect.top + height + 2 * kTipBorder;
 258                 ClipRect( &m_rect ) ;
 259                 BackColor( whiteColor ) ;
 260                 ForeColor(blackColor ) ;
 261                 m_backpict = OpenPicture(&m_rect);
 262
 263                 CopyBits(GetPortBitMapForCopyBits(GetWindowPort(m_window)),
 264                                    GetPortBitMapForCopyBits(GetWindowPort(m_window)),
 265                                    &m_rect,
 266                                    &m_rect,
 267                                    srcCopy,
 268                                    NULL);
 269
 270                 ClosePicture();
 271                 RGBColor yellow = { 0xFFFF  , 0xFFFF , (153<<8)+153 } ;
 272                 RGBBackColor( &yellow ) ;
 273                 EraseRect( &m_rect ) ;
 274                 FrameRect( &m_rect ) ;
 275                 BackColor( whiteColor ) ;
 276                 ForeColor(blackColor ) ;
 277                 ::MoveTo( m_rect.left + kTipBorder , m_rect.top + fontInfo.ascent + kTipBorder);
 278
 279                 i = 0 ;
 280                 laststop = 0 ;
 281                 height = 0 ;
 282                 while( i < length )
 283                 {
 284                         if( text[i] == 13 || text[i] == 10)
 285                         {
 286                                 ::DrawText( text , laststop , i - laststop ) ;
 287                                 height += lineh ;
 288                                 ::MoveTo( m_rect.left + kTipBorder , m_rect.top + fontInfo.ascent + kTipBorder + height );
 289                                 laststop = i+1 ;
 290                         }
 291                         i++ ;
 292                 }
 293
 294                 ::DrawText( text , laststop , i - laststop ) ;
 295                 ::TextMode( srcOr ) ;
 296
 297         //      DrawText( m_label , 0 , m_label.Length() ) ;
 298         }
 299 }
 300
 301 void wxToolTip::NotifyWindowDelete( WindowRef win )
 302 {
 303         if ( win == s_ToolTipWindowRef )
 304         {
 305                 s_ToolTipWindowRef = NULL ;
 306         }
 307 }
 308
 309 void wxMacToolTip::Clear()
 310 {
 311         m_mark++ ;
 312         if ( !m_shown )
 313                 return ;
 314
 315         if ( m_window == s_ToolTipWindowRef && m_backpict )
 316         {
 317                 #if TARGET_CARBON
 318                 AGAPortHelper help( GetWindowPort(m_window) ) ;
 319                 #else
 320                 AGAPortHelper help( (m_window) ) ;
 321                 #endif
 322                 m_shown = false ;
 323
 324                 SetOrigin( 0 , 0 ) ;
 325                 BackColor( whiteColor ) ;
 326                 ForeColor(blackColor ) ;
 327                 DrawPicture(m_backpict, &m_rect);
 328                 KillPicture(m_backpict);
 329                 m_backpict = NULL ;
 330         }
 331 }
 332
 333 #endif
 334