/////////////////////////////////////////////////////////////////////////////
-// Name: colour.cpp
+// Name: src/gtk/colour.cpp
// Purpose:
// Author: Robert Roebling
// Id: $Id$
// Licence: wxWindows licence
/////////////////////////////////////////////////////////////////////////////
+// For compilers that support precompilation, includes "wx.h".
+#include "wx/wxprec.h"
-#ifdef __GNUG__
-#pragma implementation "colour.h"
-#endif
+#include "wx/colour.h"
-#include "wx/gdicmn.h"
+#include "wx/gtk/private.h"
-#include "gdk/gdkprivate.h"
+#include <gdk/gdk.h>
//-----------------------------------------------------------------------------
// wxColour
//-----------------------------------------------------------------------------
-class wxColourRefData: public wxObjectRefData
+class wxColourRefData : public wxGDIRefData
{
- public:
+public:
+ wxColourRefData(guint16 red, guint16 green, guint16 blue, wxByte alpha = 0xff)
+ {
+ m_color.red =
+ m_red = red;
+ m_color.green =
+ m_green = green;
+ m_color.blue =
+ m_blue = blue;
+ m_alpha = alpha;
+ m_color.pixel = 0;
+ m_colormap = NULL;
+ }
+
+ virtual ~wxColourRefData()
+ {
+ FreeColour();
+ }
- wxColourRefData();
- ~wxColourRefData();
void FreeColour();
+ void AllocColour( GdkColormap* cmap );
GdkColor m_color;
GdkColormap *m_colormap;
- bool m_hasPixel;
+ // gdk_colormap_alloc_color may change the RGB values in m_color, so we need separate copies
+ guint16 m_red;
+ guint16 m_green;
+ guint16 m_blue;
+ wxByte m_alpha;
- friend wxColour;
+ wxDECLARE_NO_COPY_CLASS(wxColourRefData);
};
-wxColourRefData::wxColourRefData()
-{
- m_color.red = 0;
- m_color.green = 0;
- m_color.blue = 0;
- m_color.pixel = 0;
- m_colormap = (GdkColormap *) NULL;
- m_hasPixel = FALSE;
-}
-
-wxColourRefData::~wxColourRefData()
+void wxColourRefData::FreeColour()
{
- FreeColour();
+ if (m_colormap)
+ {
+ gdk_colormap_free_colors(m_colormap, &m_color, 1);
+ m_colormap = NULL;
+ m_color.pixel = 0;
+ }
}
-void wxColourRefData::FreeColour()
+void wxColourRefData::AllocColour( GdkColormap *cmap )
{
-// if (m_hasPixel) gdk_colors_free( m_colormap, &m_color, 1, 0 );
+ if (m_colormap != cmap)
+ {
+ FreeColour();
+
+ m_color.red = m_red;
+ m_color.green = m_green;
+ m_color.blue = m_blue;
+ if (gdk_colormap_alloc_color(cmap, &m_color, FALSE, TRUE))
+ {
+ m_colormap = cmap;
+ }
+ }
}
//-----------------------------------------------------------------------------
-#define M_COLDATA ((wxColourRefData *)m_refData)
+#define M_COLDATA static_cast<wxColourRefData*>(m_refData)
-#define SHIFT (8*(sizeof(short int)-sizeof(char)))
+// GDK's values are in 0..65535 range, ours are in 0..255
+#define SHIFT 8
IMPLEMENT_DYNAMIC_CLASS(wxColour,wxGDIObject)
-wxColour::wxColour()
-{
-}
-
-wxColour::wxColour( unsigned char red, unsigned char green, unsigned char blue )
+wxColour::wxColour(const GdkColor& gdkColor)
{
- m_refData = new wxColourRefData();
- M_COLDATA->m_color.red = ((unsigned short)red) << SHIFT;
- M_COLDATA->m_color.green = ((unsigned short)green) << SHIFT;
- M_COLDATA->m_color.blue = ((unsigned short)blue) << SHIFT;
- M_COLDATA->m_color.pixel = 0;
-}
-
-void wxColour::InitFromName( const wxString &colourName )
-{
- wxNode *node = (wxNode *) NULL;
- if ( (wxTheColourDatabase) && (node = wxTheColourDatabase->Find(colourName)) )
- {
- wxColour *col = (wxColour*)node->Data();
- UnRef();
- if (col) Ref( *col );
- }
- else
- {
- m_refData = new wxColourRefData();
- if (!gdk_color_parse( colourName, &M_COLDATA->m_color ))
- {
- wxFAIL_MSG( "wxColour: couldn't find colour" );
- delete m_refData;
- m_refData = (wxObjectRefData *) NULL;
- }
- }
-}
-
-wxColour::wxColour( const wxColour& col )
-{
- Ref( col );
+ m_refData = new wxColourRefData(gdkColor.red, gdkColor.green, gdkColor.blue);
}
wxColour::~wxColour()
{
}
-wxColour& wxColour::operator = ( const wxColour& col )
+bool wxColour::operator == ( const wxColour& col ) const
{
- if (*this == col) return (*this);
- Ref( col );
- return *this;
-}
+ if (m_refData == col.m_refData)
+ return true;
-bool wxColour::operator == ( const wxColour& col )
-{
- return m_refData == col.m_refData;
-}
+ if (!m_refData || !col.m_refData)
+ return false;
-bool wxColour::operator != ( const wxColour& col)
-{
- return m_refData != col.m_refData;
+ wxColourRefData* refData = M_COLDATA;
+ wxColourRefData* that_refData = static_cast<wxColourRefData*>(col.m_refData);
+ return refData->m_red == that_refData->m_red &&
+ refData->m_green == that_refData->m_green &&
+ refData->m_blue == that_refData->m_blue &&
+ refData->m_alpha == that_refData->m_alpha;
}
-void wxColour::Set( unsigned char red, unsigned char green, unsigned char blue )
+void wxColour::InitRGBA(unsigned char red, unsigned char green, unsigned char blue,
+ unsigned char alpha)
{
- UnRef();
- m_refData = new wxColourRefData();
- M_COLDATA->m_color.red = ((unsigned short)red) << SHIFT;
- M_COLDATA->m_color.green = ((unsigned short)green) << SHIFT;
- M_COLDATA->m_color.blue = ((unsigned short)blue) << SHIFT;
- M_COLDATA->m_color.pixel = 0;
+ UnRef();
+
+ m_refData = new wxColourRefData(
+ (guint16(red) << SHIFT) + red,
+ (guint16(green) << SHIFT) + green,
+ (guint16(blue) << SHIFT) + blue,
+ alpha);
}
unsigned char wxColour::Red() const
{
- if (!Ok())
- {
- wxFAIL_MSG( "invalid colour" );
- return 0;
- }
+ wxCHECK_MSG( Ok(), 0, wxT("invalid colour") );
- return (unsigned char)(M_COLDATA->m_color.red >> SHIFT);
+ return wxByte(M_COLDATA->m_red >> SHIFT);
}
unsigned char wxColour::Green() const
{
- if (!Ok())
- {
- wxFAIL_MSG( "invalid colour" );
- return 0;
- }
+ wxCHECK_MSG( Ok(), 0, wxT("invalid colour") );
- return (unsigned char)(M_COLDATA->m_color.green >> SHIFT);
+ return wxByte(M_COLDATA->m_green >> SHIFT);
}
unsigned char wxColour::Blue() const
{
- if (!Ok())
- {
- wxFAIL_MSG( "invalid colour" );
- return 0;
- }
+ wxCHECK_MSG( Ok(), 0, wxT("invalid colour") );
- return (unsigned char)(M_COLDATA->m_color.blue >> SHIFT);
+ return wxByte(M_COLDATA->m_blue >> SHIFT);
}
-bool wxColour::Ok() const
+unsigned char wxColour::Alpha() const
{
- return (m_refData != NULL);
+ wxCHECK_MSG( Ok(), 0, wxT("invalid colour") );
+
+ return M_COLDATA->m_alpha;
}
void wxColour::CalcPixel( GdkColormap *cmap )
{
- if (!Ok()) return;
+ if (!Ok()) return;
- if ((M_COLDATA->m_hasPixel) && (M_COLDATA->m_colormap == cmap)) return;
- M_COLDATA->FreeColour();
-
- GdkColormapPrivate *private_colormap = (GdkColormapPrivate*) cmap;
- if ((private_colormap->visual->type == GDK_VISUAL_GRAYSCALE) ||
- (private_colormap->visual->type == GDK_VISUAL_PSEUDO_COLOR))
- {
- GdkColor *colors = cmap->colors;
- int max = 3 * (65536);
- int index = -1;
-
- for (int i = 0; i < cmap->size; i++)
- {
- int rdiff = (M_COLDATA->m_color.red - colors[i].red);
- int gdiff = (M_COLDATA->m_color.green - colors[i].green);
- int bdiff = (M_COLDATA->m_color.blue - colors[i].blue);
- int sum = ABS (rdiff) + ABS (gdiff) + ABS (bdiff);
- if (sum < max) { index = i; max = sum; }
- }
-
- M_COLDATA->m_hasPixel = TRUE;
- M_COLDATA->m_color.pixel = index;
- }
- else
- {
- M_COLDATA->m_hasPixel = gdk_color_alloc( cmap, &M_COLDATA->m_color );
- }
-
- M_COLDATA->m_colormap = cmap;
+ M_COLDATA->AllocColour( cmap );
}
int wxColour::GetPixel() const
{
- if (!Ok()) return 0;
+ wxCHECK_MSG( Ok(), 0, wxT("invalid colour") );
- return M_COLDATA->m_color.pixel;
+ return M_COLDATA->m_color.pixel;
}
-GdkColor *wxColour::GetColor() const
+const GdkColor *wxColour::GetColor() const
{
- if (!Ok()) return (GdkColor *) NULL;
+ wxCHECK_MSG( Ok(), NULL, wxT("invalid colour") );
- return &M_COLDATA->m_color;
+ return &M_COLDATA->m_color;
}
+bool wxColour::FromString(const wxString& str)
+{
+ GdkColor colGDK;
+ if ( gdk_color_parse( wxGTK_CONV_SYS( str ), &colGDK ) )
+ {
+ *this = wxColour(colGDK);
+ return true;
+ }
+ return wxColourBase::FromString(str);
+}
projects / wxWidgets.git / blobdiff