/////////////////////////////////////////////////////////////////////////////
-// Name: colour.cpp
+// Name: src/gtk/colour.cpp
// Purpose:
// Author: Robert Roebling
-// Created: 01/02/97
-// Id:
-// Copyright: (c) 1998 Robert Roebling, Julian Smart and Markus Holzem
-// Licence: wxWindows licence
+// Id: $Id$
+// Copyright: (c) 1998 Robert Roebling
+// 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/gtk/private.h"
-#include "wx/gdicmn.h"
-
-#include "gdk/gdkprivate.h"
+#include <gdk/gdk.h>
//-----------------------------------------------------------------------------
// wxColour
class wxColourRefData: public wxObjectRefData
{
- public:
-
- wxColourRefData();
- ~wxColourRefData();
+public:
+ wxColourRefData()
+ {
+ m_color.red = 0;
+ m_color.green = 0;
+ m_color.blue = 0;
+ m_color.pixel = 0;
+ m_colormap = NULL;
+ m_hasPixel = false;
+ }
+
+ wxColourRefData(const wxColourRefData& data)
+ : wxObjectRefData()
+ {
+ m_color = data.m_color;
+ m_colormap = data.m_colormap;
+ m_hasPixel = data.m_hasPixel;
+ }
+
+ ~wxColourRefData()
+ {
+ FreeColour();
+ }
+
void FreeColour();
-
+ void AllocColour( GdkColormap* cmap );
+
GdkColor m_color;
GdkColormap *m_colormap;
bool m_hasPixel;
-
- friend wxColour;
};
-wxColourRefData::wxColourRefData()
+void wxColourRefData::FreeColour()
{
- m_color.red = 0;
- m_color.green = 0;
- m_color.blue = 0;
- m_color.pixel = 0;
- m_colormap = (GdkColormap *) NULL;
- m_hasPixel = FALSE;
+ if (m_hasPixel)
+ {
+ gdk_colormap_free_colors(m_colormap, &m_color, 1);
+ }
}
-wxColourRefData::~wxColourRefData()
+void wxColourRefData::AllocColour( GdkColormap *cmap )
{
- FreeColour();
-}
+ if (m_hasPixel && (m_colormap == cmap))
+ return;
-void wxColourRefData::FreeColour()
-{
-// if (m_hasPixel) gdk_colors_free( m_colormap, &m_color, 1, 0 );
+ FreeColour();
+
+ m_hasPixel = gdk_colormap_alloc_color(cmap, &m_color, FALSE, TRUE);
+ m_colormap = cmap;
}
//-----------------------------------------------------------------------------
-#define M_COLDATA ((wxColourRefData *)m_refData)
+#define M_COLDATA wx_static_cast(wxColourRefData*, m_refData)
-#define SHIFT (8*(sizeof(short int)-sizeof(char)))
+// GDK's values are in 0..65535 range, our 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 )
{
+ 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;
}
-wxColour::wxColour( char red, char green, char blue )
+/* static */
+wxColour wxColour::CreateByName(const wxString& name)
{
- 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;
+ wxColour col;
+
+ GdkColor colGDK;
+ if ( gdk_color_parse( wxGTK_CONV( name ), &colGDK ) )
+ {
+ wxColourRefData *refData = new wxColourRefData;
+ refData->m_color = colGDK;
+ col.m_refData = refData;
+ }
+
+ return col;
}
-
+
+
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 ))
+ // check the cache first
+ if ( wxTheColourDatabase )
{
- wxFAIL_MSG( "wxColour: couldn't find colour" );
- delete m_refData;
- m_refData = (wxObjectRefData *) NULL;
+ *this = wxTheColourDatabase->Find(colourName);
}
- }
-}
-wxColour::wxColour( const wxColour& col )
-{
- Ref( col );
-}
+ if ( !Ok() )
+ {
+ *this = CreateByName(colourName);
+ }
-wxColour::wxColour( const wxColour* col )
-{
- if (col) Ref( *col );
+ if ( !Ok() )
+ {
+ wxFAIL_MSG( wxT("wxColour: couldn't find colour") );
+ }
}
wxColour::~wxColour()
{
}
-wxColour& wxColour::operator = ( const wxColour& col )
-{
- if (*this == col) return (*this);
- Ref( col );
- return *this;
+bool wxColour::operator == ( const wxColour& col ) const
+{
+ if (m_refData == col.m_refData)
+ return true;
+
+ if (!m_refData || !col.m_refData)
+ return false;
+
+ const GdkColor& own = M_COLDATA->m_color;
+ const GdkColor& other = wx_static_cast(wxColourRefData*, col.m_refData)->m_color;
+ return own.red == other.red &&
+ own.blue == other.blue &&
+ own.green == other.green;
}
-bool wxColour::operator == ( const wxColour& col )
-{
- return m_refData == col.m_refData;
+wxObjectRefData *wxColour::CreateRefData() const
+{
+ return new wxColourRefData;
}
-bool wxColour::operator != ( const wxColour& col)
-{
- return m_refData != col.m_refData;
+wxObjectRefData *wxColour::CloneRefData(const wxObjectRefData *data) const
+{
+ return new wxColourRefData(*(wxColourRefData *)data);
}
-void wxColour::Set( const unsigned char red, const unsigned char green, const unsigned char blue )
+void wxColour::Set( unsigned char red, unsigned char green, unsigned char blue )
{
- 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;
+ AllocExclusive();
+
+ 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;
+
+ M_COLDATA->m_colormap = NULL;
+ M_COLDATA->m_hasPixel = false;
}
unsigned char wxColour::Red() const
{
- if (!Ok())
- {
- wxFAIL_MSG( "invalid colour" );
- return 0;
- }
-
- return (unsigned char)(M_COLDATA->m_color.red >> SHIFT);
+ wxCHECK_MSG( Ok(), 0, wxT("invalid colour") );
+
+ return (unsigned char)(M_COLDATA->m_color.red >> SHIFT);
}
unsigned char wxColour::Green() const
{
- if (!Ok())
- {
- wxFAIL_MSG( "invalid colour" );
- return 0;
- }
-
- return (unsigned char)(M_COLDATA->m_color.green >> SHIFT);
+ wxCHECK_MSG( Ok(), 0, wxT("invalid colour") );
+
+ return (unsigned char)(M_COLDATA->m_color.green >> SHIFT);
}
unsigned char wxColour::Blue() const
{
- if (!Ok())
- {
- wxFAIL_MSG( "invalid colour" );
- return 0;
- }
-
- return (unsigned char)(M_COLDATA->m_color.blue >> SHIFT);
-}
+ wxCHECK_MSG( Ok(), 0, wxT("invalid colour") );
-bool wxColour::Ok() const
-{
- return (m_refData != NULL);
+ return (unsigned char)(M_COLDATA->m_color.blue >> SHIFT);
}
void wxColour::CalcPixel( GdkColormap *cmap )
{
- 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;
+ if (!Ok()) return;
+
+ M_COLDATA->AllocColour( cmap );
}
int wxColour::GetPixel() const
{
- if (!Ok()) return 0;
-
- return M_COLDATA->m_color.pixel;
+ wxCHECK_MSG( Ok(), 0, wxT("invalid colour") );
+
+ return M_COLDATA->m_color.pixel;
}
GdkColor *wxColour::GetColor() const
{
- if (!Ok()) return (GdkColor *) NULL;
-
- return &M_COLDATA->m_color;
-}
-
+ wxCHECK_MSG( Ok(), NULL, wxT("invalid colour") );
+ return &M_COLDATA->m_color;
+}
projects / wxWidgets.git / blobdiff