don't crash in UnselectAll() if the tree has no root

[wxWidgets.git] / src / mac / cursor.cpp

diff --git a/src/mac/cursor.cpp b/src/mac/cursor.cpp
index 4333364c931cc08c781cc38f2998b2fc29bc69c8..fa0bbf76b29f7000d68470e8dfcaa34a1372fcbe 100644 (file)
--- a/src/mac/cursor.cpp
+++ b/src/mac/cursor.cpp
@@ -20,18 +20,38 @@
 IMPLEMENT_DYNAMIC_CLASS(wxCursor, wxBitmap)
 #endif
 
+const short kwxCursorHandId = 9 ;
+const short kwxCursorSizeWEId = 10 ;
+const short kwxCursorSizeNSId = 11 ;
+#if !TARGET_CARBON
+Cursor*                MacArrowCursorPtr = &qd.arrow ;
+CursHandle     MacArrowCursor = &MacArrowCursorPtr ;
+#else
+bool           MacArrowInstalled = false ;
+Cursor                 MacArrow ;
+Cursor*                MacArrowCursorPtr = &MacArrow ;
+CursHandle     MacArrowCursor = &MacArrowCursorPtr ;
+#endif
+CursHandle     gMacCurrentCursor = NULL ;
+
 wxCursorRefData::wxCursorRefData()
 {
-    m_width = 32; m_height = 32;
-
-/* TODO
-    m_hCursor = 0 ;
-*/
+#if TARGET_CARBON
+       if ( !MacArrowInstalled )
+       {
+               MacArrowCursorPtr = GetQDGlobalsArrow( &MacArrow ) ;
+               MacArrowInstalled = true ;
+       }
+#endif
+    m_width = 32; 
+    m_height = 32;
+    m_hCursor = NULL ;
 }
 
 wxCursorRefData::~wxCursorRefData()
 {
-    // TODO: destroy cursor
+//     if ( m_hCursor && ( m_hCursor != MacArrowCursor ) )
+//             ::ReleaseResource( (Handle) m_hCursor ) ;
 }
 
 // Cursors
@@ -56,122 +76,133 @@ wxCursor::wxCursor(int cursor_type)
 {
   m_refData = new wxCursorRefData;
 
-/* TODO
   switch (cursor_type)
   {
     case wxCURSOR_WAIT:
-      M_CURSORDATA->m_hCursor = (WXHCURSOR) LoadCursor(NULL, IDC_WAIT);
+      M_CURSORDATA->m_hCursor = ::GetCursor(watchCursor);
       break;
     case wxCURSOR_IBEAM:
-      M_CURSORDATA->m_hCursor = (WXHCURSOR) LoadCursor(NULL, IDC_IBEAM);
+      M_CURSORDATA->m_hCursor = ::GetCursor(iBeamCursor);
       break;
     case wxCURSOR_CROSS:
-      M_CURSORDATA->m_hCursor = (WXHCURSOR) LoadCursor(NULL, IDC_CROSS);
+      M_CURSORDATA->m_hCursor = ::GetCursor(crossCursor);
       break;
     case wxCURSOR_SIZENWSE:
-      M_CURSORDATA->m_hCursor = (WXHCURSOR) LoadCursor(NULL, IDC_SIZENWSE);
+      M_CURSORDATA->m_hCursor = ::GetCursor(kwxCursorSizeWEId);
       break;
     case wxCURSOR_SIZENESW:
-      M_CURSORDATA->m_hCursor = (WXHCURSOR) LoadCursor(NULL, IDC_SIZENESW);
+      M_CURSORDATA->m_hCursor = ::GetCursor(kwxCursorSizeWEId);
       break;
     case wxCURSOR_SIZEWE:
-      M_CURSORDATA->m_hCursor = (WXHCURSOR) LoadCursor(NULL, IDC_SIZEWE);
+      M_CURSORDATA->m_hCursor = ::GetCursor(kwxCursorSizeWEId);
       break;
     case wxCURSOR_SIZENS:
-      M_CURSORDATA->m_hCursor = (WXHCURSOR) LoadCursor(NULL, IDC_SIZENS);
+      M_CURSORDATA->m_hCursor = ::GetCursor(kwxCursorSizeNSId);
       break;
     case wxCURSOR_CHAR:
     {
-      M_CURSORDATA->m_hCursor = (WXHCURSOR) LoadCursor(NULL, IDC_ARROW);
+      M_CURSORDATA->m_hCursor = MacArrowCursor;
       break;
     }
     case wxCURSOR_HAND:
     {
-      M_CURSORDATA->m_hCursor = (WXHCURSOR) LoadCursor(wxGetInstance(), "wxCURSOR_HAND");
+      M_CURSORDATA->m_hCursor = ::GetCursor(kwxCursorHandId);
       break;
     }
     case wxCURSOR_BULLSEYE:
     {
-      M_CURSORDATA->m_hCursor = (WXHCURSOR) LoadCursor(wxGetInstance(), "wxCURSOR_BULLSEYE");
+      M_CURSORDATA->m_hCursor = ::GetCursor(kwxCursorHandId);
       break;
     }
     case wxCURSOR_PENCIL:
     {
-      M_CURSORDATA->m_hCursor = (WXHCURSOR) LoadCursor(wxGetInstance(), "wxCURSOR_PENCIL");
+      M_CURSORDATA->m_hCursor = ::GetCursor(kwxCursorHandId);
       break;
     }
     case wxCURSOR_MAGNIFIER:
     {
-      M_CURSORDATA->m_hCursor = (WXHCURSOR) LoadCursor(wxGetInstance(), "wxCURSOR_MAGNIFIER");
+      M_CURSORDATA->m_hCursor = ::GetCursor(kwxCursorHandId);
       break;
     }
     case wxCURSOR_NO_ENTRY:
     {
-      M_CURSORDATA->m_hCursor = (WXHCURSOR) LoadCursor(wxGetInstance(), "wxCURSOR_NO_ENTRY");
+      M_CURSORDATA->m_hCursor = ::GetCursor(kwxCursorHandId);
       break;
     }
     case wxCURSOR_LEFT_BUTTON:
     {
-      M_CURSORDATA->m_hCursor = (WXHCURSOR) LoadCursor(NULL, IDC_ARROW);
+      M_CURSORDATA->m_hCursor = MacArrowCursor;
       break;
     }
     case wxCURSOR_RIGHT_BUTTON:
     {
-      M_CURSORDATA->m_hCursor = (WXHCURSOR) LoadCursor(NULL, IDC_ARROW);
+      M_CURSORDATA->m_hCursor = MacArrowCursor;
       break;
     }
     case wxCURSOR_MIDDLE_BUTTON:
     {
-      M_CURSORDATA->m_hCursor = (WXHCURSOR) LoadCursor(NULL, IDC_ARROW);
+      M_CURSORDATA->m_hCursor = MacArrowCursor;
       break;
     }
     case wxCURSOR_SIZING:
     {
-      M_CURSORDATA->m_hCursor = (WXHCURSOR) LoadCursor(wxGetInstance(), "wxCURSOR_SIZING");
+      M_CURSORDATA->m_hCursor = MacArrowCursor;
       break;
     }
     case wxCURSOR_WATCH:
     {
-      M_CURSORDATA->m_hCursor = (WXHCURSOR) LoadCursor(wxGetInstance(), "wxCURSOR_WATCH");
+      M_CURSORDATA->m_hCursor = ::GetCursor(watchCursor);
       break;
     }
     case wxCURSOR_SPRAYCAN:
     {
-      M_CURSORDATA->m_hCursor = (WXHCURSOR) LoadCursor(wxGetInstance(), "wxCURSOR_ROLLER");
+      M_CURSORDATA->m_hCursor = MacArrowCursor;
       break;
     }
     case wxCURSOR_PAINT_BRUSH:
     {
-      M_CURSORDATA->m_hCursor = (WXHCURSOR) LoadCursor(wxGetInstance(), "wxCURSOR_PBRUSH");
+      M_CURSORDATA->m_hCursor = MacArrowCursor;
       break;
     }
     case wxCURSOR_POINT_LEFT:
     {
-      M_CURSORDATA->m_hCursor = (WXHCURSOR) LoadCursor(wxGetInstance(), "wxCURSOR_PLEFT");
+      M_CURSORDATA->m_hCursor = MacArrowCursor;
       break;
     }
     case wxCURSOR_POINT_RIGHT:
     {
-      M_CURSORDATA->m_hCursor = (WXHCURSOR) LoadCursor(wxGetInstance(), "wxCURSOR_PRIGHT");
+      M_CURSORDATA->m_hCursor = MacArrowCursor;
       break;
     }
     case wxCURSOR_QUESTION_ARROW:
     {
-      M_CURSORDATA->m_hCursor = (WXHCURSOR) LoadCursor(wxGetInstance(), "wxCURSOR_QARROW");
+      M_CURSORDATA->m_hCursor = MacArrowCursor;
       break;
     }
     case wxCURSOR_BLANK:
     {
-      M_CURSORDATA->m_hCursor = (WXHCURSOR) LoadCursor(wxGetInstance(), "wxCURSOR_BLANK");
+      M_CURSORDATA->m_hCursor = MacArrowCursor;
       break;
     }
     default:
     case wxCURSOR_ARROW:
-      M_CURSORDATA->m_hCursor = (WXHCURSOR) LoadCursor(NULL, IDC_ARROW);
+      M_CURSORDATA->m_hCursor = MacArrowCursor;
       break;
-  }
-*/
+       }
+}
 
+void wxCursor::MacInstall() const 
+{
+       if ( m_refData && M_CURSORDATA->m_hCursor )
+       {
+               ::SetCursor( *M_CURSORDATA->m_hCursor ) ;
+               gMacCurrentCursor = M_CURSORDATA->m_hCursor ;
+       }
+       else
+       {
+               ::SetCursor( *MacArrowCursor ) ;
+               gMacCurrentCursor = NULL ;
+       }
 }
 
 wxCursor::~wxCursor()
@@ -181,7 +212,7 @@ wxCursor::~wxCursor()
 // Global cursor setting
 void wxSetCursor(const wxCursor& cursor)
 {
-  // TODO (optional on platforms with no global cursor)
+       cursor.MacInstall() ;
 }