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 window  , wxString text , wxPoint localPosition )
 189 {
 190         m_mark++ ;
 191         Clear() ;
 192         m_position = localPosition ;
 193         m_label = wxMacMakeMacStringFromPC( text ) ;
 194         m_window = window ;
 195         s_ToolTipWindowRef = window ;
 196         m_backpict = NULL ;
 197         if ( m_timer )
 198             delete m_timer ;
 199         m_timer = new wxMacToolTipTimer( this , s_ToolTipDelay ) ;
 200 }
 201
 202 wxMacToolTip::~wxMacToolTip()
 203 {
 204     if ( m_timer )
 205         delete m_timer ;
 206         if ( m_backpict )
 207                 Clear() ;
 208 }
 209
 210 const short kTipBorder = 2 ;
 211 const short kTipOffset = 5 ;
 212
 213 void wxMacToolTip::Draw()
 214 {
 215         if ( m_label.Length() == 0 )
 216                 return ;
 217
 218         if ( m_window == s_ToolTipWindowRef )
 219         {
 220 #if TARGET_CARBON
 221 /*
 222           if ( HMDisplayTag != (void*) kUnresolvedCFragSymbolAddress )
 223           {
 224             HMDisplayTag(
 225           }
 226           else
 227 */
 228 #endif
 229           {
 230                 wxMacPortStateHelper help( (GrafPtr) GetWindowPort( m_window ) );
 231
 232                 m_shown = true ;
 233
 234                 TextFont( kFontIDGeneva ) ;
 235                 TextSize( 10 ) ;
 236                 TextFace( 0 ) ;
 237                 FontInfo fontInfo;
 238                 ::GetFontInfo(&fontInfo);
 239                 short lineh = fontInfo.ascent + fontInfo.descent + fontInfo.leading;
 240                 short height = 0 ;
 241         //      short width = TextWidth( m_label , 0 ,m_label.Length() ) ;
 242
 243                 int i = 0 ;
 244                 int length = m_label.Length() ;
 245                 int width = 0 ;
 246                 int thiswidth = 0 ;
 247                 int laststop = 0 ;
 248                 const char *text = m_label ;
 249                 while( i < length )
 250                 {
 251                         if( text[i] == 13 || text[i] == 10)
 252                         {
 253                                 thiswidth = ::TextWidth( text , laststop , i - laststop ) ;
 254                                 if ( thiswidth > width )
 255                                         width = thiswidth ;
 256
 257                                 height += lineh ;
 258                                 laststop = i+1 ;
 259                         }
 260                         i++ ;
 261                 }
 262                 if ( i - laststop > 0 )
 263                 {
 264                         thiswidth = ::TextWidth( text , laststop , i - laststop ) ;
 265                         if ( thiswidth > width )
 266                                 width = thiswidth ;
 267                         height += lineh ;
 268                 }
 269
 270
 271                 m_rect.left = m_position.x + kTipOffset;
 272                 m_rect.top = m_position.y + kTipOffset;
 273                 m_rect.right = m_rect.left + width + 2 * kTipBorder;
 274                 m_rect.bottom = m_rect.top + height + 2 * kTipBorder;
 275                 ClipRect( &m_rect ) ;
 276                 BackColor( whiteColor ) ;
 277                 ForeColor(blackColor ) ;
 278                 m_backpict = OpenPicture(&m_rect);
 279
 280                 CopyBits(GetPortBitMapForCopyBits(GetWindowPort(m_window)),
 281                                    GetPortBitMapForCopyBits(GetWindowPort(m_window)),
 282                                    &m_rect,
 283                                    &m_rect,
 284                                    srcCopy,
 285                                    NULL);
 286
 287                 ClosePicture();
 288       PenNormal() ;
 289                 SetThemeBackground(kThemeBrushNotificationWindowBackground,32,true) ;
 290                 SetThemeTextColor(kThemeTextColorNotification,32,true) ;
 291                 EraseRect( &m_rect ) ;
 292                 FrameRect( &m_rect ) ;
 293                 ::MoveTo( m_rect.left + kTipBorder , m_rect.top + fontInfo.ascent + kTipBorder);
 294
 295                 i = 0 ;
 296                 laststop = 0 ;
 297                 height = 0 ;
 298                 while( i < length )
 299                 {
 300                         if( text[i] == 13 || text[i] == 10)
 301                         {
 302                                 ::DrawText( text , laststop , i - laststop ) ;
 303                                 height += lineh ;
 304                                 ::MoveTo( m_rect.left + kTipBorder , m_rect.top + fontInfo.ascent + kTipBorder + height );
 305                                 laststop = i+1 ;
 306                         }
 307                         i++ ;
 308                 }
 309
 310                 ::DrawText( text , laststop , i - laststop ) ;
 311                 ::TextMode( srcOr ) ;
 312         //      DrawText( m_label , 0 , m_label.Length() ) ;
 313         }
 314         }
 315 }
 316
 317 void wxToolTip::NotifyWindowDelete( WXHWND win )
 318 {
 319         if ( win == s_ToolTipWindowRef )
 320         {
 321                 s_ToolTipWindowRef = NULL ;
 322         }
 323 }
 324
 325 void wxMacToolTip::Clear()
 326 {
 327         m_mark++ ;
 328         if ( m_timer )
 329         {
 330             delete m_timer ;
 331             m_timer = NULL ;
 332         }
 333         if ( !m_shown )
 334                 return ;
 335
 336         if ( m_window == s_ToolTipWindowRef && m_backpict )
 337         {
 338                 wxMacPortStateHelper help( (GrafPtr) GetWindowPort(m_window) ) ;
 339
 340                 m_shown = false ;
 341
 342                 BackColor( whiteColor ) ;
 343                 ForeColor(blackColor ) ;
 344                 DrawPicture(m_backpict, &m_rect);
 345                 KillPicture(m_backpict);
 346                 m_backpict = NULL ;
 347         }
 348 }
 349
 350 #endif
 351