changed wxSystemSettings::HasFrameDecorations to more general GetCapability(index)

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@12222 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

include/wx/gtk/settings.h

@@ -36,8 +36,8 @@ public:
     // Get a system metric, e.g. scrollbar size
     static int         GetSystemMetric(int index);
 
-    // Return true if the port can draw frame titlebar (i.e. doesn't need wxUniv for it)
-    static bool        HasFrameDecorations() { return TRUE; }
+    // Return true if the port has certain feature
+    static bool        GetCapability(int index);
 };
 
 #endif

include/wx/gtk1/settings.h

@@ -36,8 +36,8 @@ public:
     // Get a system metric, e.g. scrollbar size
     static int         GetSystemMetric(int index);
 
-    // Return true if the port can draw frame titlebar (i.e. doesn't need wxUniv for it)
-    static bool        HasFrameDecorations() { return TRUE; }
+    // Return true if the port has certain feature
+    static bool        GetCapability(int index);
 };
 
 #endif

include/wx/mac/settings.h

@@ -128,8 +128,9 @@ public:
     // Get a system metric, e.g. scrollbar size
     static int         GetSystemMetric(int index);
 
-    // Return true if the port can draw frame titlebar (i.e. doesn't need wxUniv for it)
-    static bool        HasFrameDecorations() { return TRUE; }
+    // Return true if the port has certain feature
+    static bool        GetCapability(int index);
+
 };
 
 #endif

include/wx/mgl/settings.h

@@ -37,8 +37,8 @@ public:
     // Get a system metric, e.g. scrollbar size
     static int GetSystemMetric(int index);
     
-    // Return true if the port can draw frame titlebar (i.e. doesn't need wxUniv for it)
-    static bool HasFrameDecorations() { return FALSE; }
+    // Return true if the port has certain feature
+    static bool GetCapability(int index);
 };
 
 #endif

include/wx/motif/settings.h

@@ -37,8 +37,9 @@ public:
     // Get a system metric, e.g. scrollbar size
     static int         GetSystemMetric(int index);
 
-    // Return true if the port can draw frame titlebar (i.e. doesn't need wxUniv for it)
-    static bool        HasFrameDecorations() { return TRUE; }
+    // Return true if the port has certain feature
+    static bool        GetCapability(int index);
+
 };
 
 #endif

include/wx/msw/settings.h

@@ -33,9 +33,8 @@ public:
     // Get a system metric, e.g. scrollbar size
     static int GetSystemMetric(int index);
 
-    // Return true if the port can draw frame titlebar (i.e. doesn't need wxUniv for it)
-    static bool HasFrameDecorations() { return TRUE; }
-
+    // Return true if the port has certain feature
+    static bool GetCapability(int index);
 };
 
 #endif

include/wx/os2/settings.h

@@ -24,7 +24,7 @@ public:
     static wxColour    GetSystemColour(int index);
     static wxFont      GetSystemFont(int index);
     static int         GetSystemMetric(int index);
-    static bool        HasFrameDecorations() { return TRUE; }
+    static bool        GetCapability(int index);
 }; // end of CLASS wxSystemSettings
 
 #endif

include/wx/settings.h

@@ -106,6 +106,10 @@
 #define wxSYS_SHOW_SOUNDS             36
 #define wxSYS_SWAP_BUTTONS            37
 
+// Platform capabilities
+#define wxSYS_CAN_DRAW_FRAME_DECORATIONS  1
+#define wxSYS_CAN_ICONIZE_FRAME           2
+
 #if defined(__WXMSW__)
 #include "wx/msw/settings.h"
 #elif defined(__WXMOTIF__)

src/gtk/settings.cpp

@@ -369,3 +369,16 @@ int wxSystemSettings::GetSystemMetric( int index )
 
     return 0;
 }
+
+bool wxSystemSettings::GetCapability(int index)
+{
+    switch (index)
+    {
+        case wxSYS_CAN_ICONIZE_FRAME: 
+            return FALSE; break;
+        case wxSYS_CAN_DRAW_FRAME_DECORATIONS:
+            return TRUE; break;
+        default:
+            return FALSE;
+    }
+}

src/gtk1/settings.cpp

@@ -369,3 +369,16 @@ int wxSystemSettings::GetSystemMetric( int index )
 
     return 0;
 }
+
+bool wxSystemSettings::GetCapability(int index)
+{
+    switch (index)
+    {
+        case wxSYS_CAN_ICONIZE_FRAME: 
+            return FALSE; break;
+        case wxSYS_CAN_DRAW_FRAME_DECORATIONS:
+            return TRUE; break;
+        default:
+            return FALSE;
+    }
+}

src/mac/carbon/settings.cpp

@@ -220,3 +220,14 @@ int wxSystemSettings::GetSystemMetric(int index)
 	return 0;
 }
 
+bool wxSystemSettings::GetCapability(int index)
+{
+    switch (index)
+    {
+        case wxSYS_CAN_ICONIZE_FRAME: 
+        case wxSYS_CAN_DRAW_FRAME_DECORATIONS:
+            return TRUE; break;
+        default:
+            return FALSE;
+    }
+}

src/mac/settings.cpp

@@ -220,3 +220,14 @@ int wxSystemSettings::GetSystemMetric(int index)
 	return 0;
 }
 
+bool wxSystemSettings::GetCapability(int index)
+{
+    switch (index)
+    {
+        case wxSYS_CAN_ICONIZE_FRAME: 
+        case wxSYS_CAN_DRAW_FRAME_DECORATIONS:
+            return TRUE; break;
+        default:
+            return FALSE;
+    }
+}

src/mgl/settings.cpp

@@ -32,3 +32,16 @@ int wxSystemSettings::GetSystemMetric(int WXUNUSED(index))
     // FIXME_MGL
     return 1;
 }
+
+bool wxSystemSettings::GetCapability(int index)
+{
+    switch (index)
+    {
+        case wxSYS_CAN_ICONIZE_FRAME: 
+            return FALSE; break;
+        case wxSYS_CAN_DRAW_FRAME_DECORATIONS:
+            return FALSE; break;
+        default:
+            return FALSE;
+    }
+}

src/motif/settings.cpp

@@ -231,3 +231,14 @@ int wxSystemSettings::GetSystemMetric(int index)
 	}
 }
 
+bool wxSystemSettings::GetCapability(int index)
+{
+    switch (index)
+    {
+        case wxSYS_CAN_ICONIZE_FRAME: 
+        case wxSYS_CAN_DRAW_FRAME_DECORATIONS:
+            return TRUE; break;
+        default:
+            return FALSE;
+    }
+}

src/msw/settings.cpp

@@ -267,3 +267,14 @@ int wxSystemSettings::GetSystemMetric(int index)
     // __WXMICROWIN__
 }
 
+bool wxSystemSettings::GetCapability(int index)
+{
+    switch (index)
+    {
+        case wxSYS_CAN_ICONIZE_FRAME: 
+        case wxSYS_CAN_DRAW_FRAME_DECORATIONS:
+            return TRUE; break;
+        default:
+            return FALSE;
+    }
+}

src/os2/settings.cpp

@@ -357,3 +357,14 @@ int wxSystemSettings::GetSystemMetric(int index)
     return 0;
 }
 
+bool wxSystemSettings::GetCapability(int index)
+{
+    switch (index)
+    {
+        case wxSYS_CAN_ICONIZE_FRAME: 
+        case wxSYS_CAN_DRAW_FRAME_DECORATIONS:
+            return TRUE; break;
+        default:
+            return FALSE;
+    }
+}

src/univ/topluniv.cpp

@@ -55,6 +55,7 @@ WX_FORWARD_TO_INPUT_CONSUMER(wxTopLevelWindow)
 // ============================================================================
 
 int wxTopLevelWindow::ms_drawDecorations = -1;
+int wxTopLevelWindow::ms_canIconize = -1;
 
 void wxTopLevelWindow::Init()
 {
@@ -76,10 +77,18 @@ bool wxTopLevelWindow::Create(wxWindow *parent,
          exstyleOrig = 0;
 
     if ( ms_drawDecorations == -1 )
-        ms_drawDecorations = !wxSystemSettings::HasFrameDecorations() ||
-                             wxGetEnv(wxT("WXDECOR"), NULL);
+    {
+        ms_drawDecorations = 
+            !wxSystemSettings::GetCapability(wxSYS_CAN_DRAW_FRAME_DECORATIONS) 
+            || wxGetEnv(wxT("WXDECOR"), NULL);
         // FIXME -- wxUniv should provide a way to force non-native decorations!
         //          $WXDECOR is just a hack in absence of better wxUniv solution
+    }
+
+    if ( ms_canIconize == -1 )
+    {
+        ms_canIconize = wxSystemSettings::GetCapability(wxSYS_CAN_ICONIZE_FRAME);
+    }
 
     if ( ms_drawDecorations )
     {
@@ -138,7 +147,7 @@ long wxTopLevelWindow::GetDecorationsStyle() const
     if ( m_windowStyle & wxCAPTION )
     {
         style |= wxTOPLEVEL_TITLEBAR | wxTOPLEVEL_BUTTON_CLOSE;
-        if ( m_windowStyle & wxMINIMIZE_BOX )
+        if ( (m_windowStyle & wxMINIMIZE_BOX) && ms_canIconize )
             style |= wxTOPLEVEL_BUTTON_ICONIZE;
         if ( m_windowStyle & wxMAXIMIZE_BOX )
         {