support for GTK3

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@71894 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

src/gtk/colour.cpp

@@ -12,9 +12,8 @@
 
 #include "wx/colour.h"
 
-#include "wx/gtk/private.h"
-
 #include <gdk/gdk.h>
+#include "wx/gtk/private.h"
 
 //-----------------------------------------------------------------------------
 // wxColour
@@ -23,6 +22,38 @@
 class wxColourRefData : public wxGDIRefData
 {
 public:
+#ifdef __WXGTK3__
+    wxColourRefData(const GdkRGBA& gdkRGBA)
+        : m_gdkRGBA(gdkRGBA)
+    {
+        m_gdkColor.red = guint16(gdkRGBA.red * 65535);
+        m_gdkColor.green = guint16(gdkRGBA.green * 65535);
+        m_gdkColor.blue = guint16(gdkRGBA.blue * 65535);
+        m_alpha = wxByte(gdkRGBA.alpha * 255 + 0.5);
+    }
+    wxColourRefData(const GdkColor& gdkColor)
+        : m_gdkColor(gdkColor)
+    {
+        m_gdkRGBA.red = gdkColor.red / 65535.0;
+        m_gdkRGBA.green = gdkColor.green / 65535.0;
+        m_gdkRGBA.blue = gdkColor.blue / 65535.0;
+        m_gdkRGBA.alpha = 1;
+        m_alpha = 255;
+    }
+    wxColourRefData(guchar red, guchar green, guchar blue, guchar alpha)
+    {
+        m_gdkRGBA.red = red / 255.0;
+        m_gdkRGBA.green = green / 255.0;
+        m_gdkRGBA.blue = blue / 255.0;
+        m_gdkRGBA.alpha = alpha / 255.0;
+        m_gdkColor.red = (guint16(red) << 8) + red;
+        m_gdkColor.green = (guint16(green) << 8) + green;
+        m_gdkColor.blue = (guint16(blue) << 8) + blue;
+        m_alpha = alpha;
+    }
+    GdkRGBA m_gdkRGBA;
+    GdkColor m_gdkColor;
+#else
     wxColourRefData(guint16 red, guint16 green, guint16 blue, wxByte alpha = 0xff)
     {
         m_color.red =
@@ -50,11 +81,13 @@ public:
     guint16 m_red;
     guint16 m_green;
     guint16 m_blue;
+#endif
     wxByte m_alpha;
 
     wxDECLARE_NO_COPY_CLASS(wxColourRefData);
 };
 
+#ifndef __WXGTK3__
 void wxColourRefData::FreeColour()
 {
     if (m_colormap)
@@ -80,6 +113,7 @@ void wxColourRefData::AllocColour( GdkColormap *cmap )
         }
     }
 }
+#endif
 
 //-----------------------------------------------------------------------------
 
@@ -88,10 +122,22 @@ void wxColourRefData::AllocColour( GdkColormap *cmap )
 // GDK's values are in 0..65535 range, ours are in 0..255
 #define SHIFT  8
 
+#ifdef __WXGTK3__
+wxColour::wxColour(const GdkRGBA& gdkRGBA)
+{
+    m_refData = new wxColourRefData(gdkRGBA);
+}
+
+wxColour::wxColour(const GdkColor& gdkColor)
+{
+    m_refData = new wxColourRefData(gdkColor);
+}
+#else
 wxColour::wxColour(const GdkColor& gdkColor)
 {
     m_refData = new wxColourRefData(gdkColor.red, gdkColor.green, gdkColor.blue);
 }
+#endif
 
 wxColour::~wxColour()
 {
@@ -107,9 +153,15 @@ bool wxColour::operator == ( const wxColour& col ) const
 
     wxColourRefData* refData = M_COLDATA;
     wxColourRefData* that_refData = static_cast<wxColourRefData*>(col.m_refData);
+#ifdef __WXGTK3__
+    return refData->m_gdkColor.red == that_refData->m_gdkColor.red &&
+           refData->m_gdkColor.green == that_refData->m_gdkColor.green &&
+           refData->m_gdkColor.blue == that_refData->m_gdkColor.blue &&
+#else
     return refData->m_red == that_refData->m_red &&
            refData->m_green == that_refData->m_green &&
            refData->m_blue == that_refData->m_blue &&
+#endif
            refData->m_alpha == that_refData->m_alpha;
 }
 
@@ -118,32 +170,48 @@ void wxColour::InitRGBA(unsigned char red, unsigned char green, unsigned char bl
 {
     UnRef();
 
+#ifdef __WXGTK3__
+    m_refData = new wxColourRefData(red, green, blue, alpha);
+#else
     m_refData = new wxColourRefData(
         (guint16(red) << SHIFT) + red,
         (guint16(green) << SHIFT) + green,
         (guint16(blue) << SHIFT) + blue,
         alpha);
+#endif
 }
 
 unsigned char wxColour::Red() const
 {
     wxCHECK_MSG( IsOk(), 0, wxT("invalid colour") );
 
+#ifdef __WXGTK3__
+    return wxByte(M_COLDATA->m_gdkColor.red >> 8);
+#else
     return wxByte(M_COLDATA->m_red >> SHIFT);
+#endif
 }
 
 unsigned char wxColour::Green() const
 {
     wxCHECK_MSG( IsOk(), 0, wxT("invalid colour") );
 
+#ifdef __WXGTK3__
+    return wxByte(M_COLDATA->m_gdkColor.green >> 8);
+#else
     return wxByte(M_COLDATA->m_green >> SHIFT);
+#endif
 }
 
 unsigned char wxColour::Blue() const
 {
     wxCHECK_MSG( IsOk(), 0, wxT("invalid colour") );
 
+#ifdef __WXGTK3__
+    return wxByte(M_COLDATA->m_gdkColor.blue >> 8);
+#else
     return wxByte(M_COLDATA->m_blue >> SHIFT);
+#endif
 }
 
 unsigned char wxColour::Alpha() const
@@ -153,6 +221,7 @@ unsigned char wxColour::Alpha() const
     return M_COLDATA->m_alpha;
 }
 
+#ifndef __WXGTK3__
 void wxColour::CalcPixel( GdkColormap *cmap )
 {
     if (!IsOk()) return;
@@ -166,22 +235,46 @@ int wxColour::GetPixel() const
 
     return M_COLDATA->m_color.pixel;
 }
+#endif
 
 const GdkColor *wxColour::GetColor() const
 {
     wxCHECK_MSG( IsOk(), NULL, wxT("invalid colour") );
 
+#ifdef __WXGTK3__
+    return &M_COLDATA->m_gdkColor;
+#else
     return &M_COLDATA->m_color;
+#endif
 }
 
+#ifdef __WXGTK3__
+wxColour::operator const GdkRGBA*() const
+{
+    const GdkRGBA* c = NULL;
+    if (IsOk())
+        c = &M_COLDATA->m_gdkRGBA;
+    return c;
+}
+#endif
+
 bool wxColour::FromString(const wxString& str)
 {
+#ifdef __WXGTK3__
+    GdkRGBA gdkRGBA;
+    if (gdk_rgba_parse(&gdkRGBA, wxGTK_CONV_SYS(str)))
+    {
+        *this = wxColour(gdkRGBA);
+        return true;
+    }
+#else
     GdkColor colGDK;
     if ( gdk_color_parse( wxGTK_CONV_SYS( str ), &colGDK ) )
     {
         *this = wxColour(colGDK);
         return true;
     }
+#endif
 
     return wxColourBase::FromString(str);
 }