Support using GetTextExtent() with empty string to get descent in wxOSX.

[wxWidgets.git] / include / wx / gdicmn.h

diff --git a/include/wx/gdicmn.h b/include/wx/gdicmn.h
index bf7fa6079226a041682267c84520fe3c78427cc6..eeb848f1d64a54044e7b0ebf340554b377a7540a 100644 (file)
--- a/include/wx/gdicmn.h
+++ b/include/wx/gdicmn.h
@@ -160,25 +160,26 @@ enum wxStockCursor
 // macros
 // ---------------------------------------------------------------------------
 
+#if defined(__WINDOWS__) || defined(__WXPM__)
+    #define wxHAS_IMAGES_IN_RESOURCES
+#endif
+
 /* Useful macro for creating icons portably, for example:
 
     wxIcon *icon = new wxICON(sample);
 
   expands into:
 
-    wxIcon *icon = new wxIcon("sample");      // On wxMSW
-    wxIcon *icon = new wxIcon(sample_xpm);    // On wxGTK
+    wxIcon *icon = new wxIcon("sample");      // On Windows
+    wxIcon *icon = new wxIcon(sample_xpm);    // On wxGTK/Linux
  */
 
-#ifdef __WXMSW__
+#ifdef __WINDOWS__
     // Load from a resource
     #define wxICON(X) wxIcon(wxT(#X))
 #elif defined(__WXPM__)
     // Load from a resource
     #define wxICON(X) wxIcon(wxT(#X))
-#elif defined(__WXMGL__)
-    // Initialize from an included XPM
-    #define wxICON(X) wxIcon( X##_xpm )
 #elif defined(__WXDFB__)
     // Initialize from an included XPM
     #define wxICON(X) wxIcon( X##_xpm )
@@ -203,13 +204,12 @@ enum wxStockCursor
    under Unix bitmaps live in XPMs and under Windows they're in ressources.
  */
 
-#if defined(__WXMSW__) || defined(__WXPM__)
+#if defined(__WINDOWS__) || defined(__WXPM__)
     #define wxBITMAP(name) wxBitmap(wxT(#name), wxBITMAP_TYPE_BMP_RESOURCE)
 #elif defined(__WXGTK__)   || \
       defined(__WXMOTIF__) || \
       defined(__WXX11__)   || \
       defined(__WXMAC__)   || \
-      defined(__WXMGL__)   || \
       defined(__WXDFB__)   || \
       defined(__WXCOCOA__)
     // Initialize from an included XPM
@@ -218,6 +218,28 @@ enum wxStockCursor
     #define wxBITMAP(name) wxBitmap(name##_xpm, wxBITMAP_TYPE_XPM)
 #endif // platform
 
+// Macro for creating wxBitmap from in-memory PNG data.
+//
+// It reads PNG data from name_png static byte arrays that can be created using
+// e.g. misc/scripts/png2c.py.
+//
+// This macro exists mostly as a helper for wxBITMAP_PNG() below but also
+// because it's slightly more convenient to use than NewFromPNGData() directly.
+#define wxBITMAP_PNG_FROM_DATA(name) \
+    wxBitmap::NewFromPNGData(name##_png, WXSIZEOF(name##_png))
+
+// Similar to wxBITMAP but used for the bitmaps in PNG format.
+//
+// Under Windows they should be embedded into the resource file using RT_RCDATA
+// resource type and under OS X the PNG file with the specified name must be
+// available in the resource subdirectory of the bundle. Elsewhere, this is
+// exactly the same thing as wxBITMAP_PNG_FROM_DATA() described above.
+#if defined(__WINDOWS__) || defined(__WXOSX__)
+    #define wxBITMAP_PNG(name) wxBitmap(wxS(#name), wxBITMAP_TYPE_PNG_RESOURCE)
+#else
+    #define wxBITMAP_PNG(name) wxBITMAP_PNG_FROM_DATA(name)
+#endif
+
 // ===========================================================================
 // classes
 // ===========================================================================
@@ -255,6 +277,13 @@ public:
         { if ( sz.x > x ) x = sz.x; if ( sz.y > y ) y = sz.y; }
     void DecTo(const wxSize& sz)
         { if ( sz.x < x ) x = sz.x; if ( sz.y < y ) y = sz.y; }
+    void DecToIfSpecified(const wxSize& sz)
+    {
+        if ( sz.x != wxDefaultCoord && sz.x < x )
+            x = sz.x;
+        if ( sz.y != wxDefaultCoord && sz.y < y )
+            y = sz.y;
+    }
 
     void IncBy(int dx, int dy) { x += dx; y += dy; }
     void IncBy(const wxPoint& pt);
@@ -352,27 +381,27 @@ inline wxSize operator/(const wxSize& s, long i)
 
 inline wxSize operator*(const wxSize& s, long i)
 {
-    return wxSize(s.x * i, s.y * i);
+    return wxSize(int(s.x * i), int(s.y * i));
 }
 
 inline wxSize operator*(long i, const wxSize& s)
 {
-    return wxSize(s.x * i, s.y * i);
+    return wxSize(int(s.x * i), int(s.y * i));
 }
 
 inline wxSize operator/(const wxSize& s, unsigned long i)
 {
-    return wxSize(s.x / i, s.y / i);
+    return wxSize(int(s.x / i), int(s.y / i));
 }
 
 inline wxSize operator*(const wxSize& s, unsigned long i)
 {
-    return wxSize(s.x * i, s.y * i);
+    return wxSize(int(s.x * i), int(s.y * i));
 }
 
 inline wxSize operator*(unsigned long i, const wxSize& s)
 {
-    return wxSize(s.x * i, s.y * i);
+    return wxSize(int(s.x * i), int(s.y * i));
 }
 
 inline wxSize operator*(const wxSize& s, double i)
@@ -626,12 +655,12 @@ inline wxPoint operator/(const wxPoint& s, long i)
 
 inline wxPoint operator*(const wxPoint& s, long i)
 {
-    return wxPoint(s.x * i, s.y * i);
+    return wxPoint(int(s.x * i), int(s.y * i));
 }
 
 inline wxPoint operator*(long i, const wxPoint& s)
 {
-    return wxPoint(s.x * i, s.y * i);
+    return wxPoint(int(s.x * i), int(s.y * i));
 }
 
 inline wxPoint operator/(const wxPoint& s, unsigned long i)
@@ -641,12 +670,12 @@ inline wxPoint operator/(const wxPoint& s, unsigned long i)
 
 inline wxPoint operator*(const wxPoint& s, unsigned long i)
 {
-    return wxPoint(s.x * i, s.y * i);
+    return wxPoint(int(s.x * i), int(s.y * i));
 }
 
 inline wxPoint operator*(unsigned long i, const wxPoint& s)
 {
-    return wxPoint(s.x * i, s.y * i);
+    return wxPoint(int(s.x * i), int(s.y * i));
 }
 
 inline wxPoint operator*(const wxPoint& s, double i)