Updated version to 2.3.2 so apps can test for differences in new merged source
[wxWidgets.git] / src / gtk / colour.cpp
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1/////////////////////////////////////////////////////////////////////////////
2// Name: colour.cpp
3// Purpose:
4// Author: Robert Roebling
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5// Id: $Id$
6// Copyright: (c) 1998 Robert Roebling
8bbe427f 7// Licence: wxWindows licence
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8/////////////////////////////////////////////////////////////////////////////
9
10
11#ifdef __GNUG__
12#pragma implementation "colour.h"
13#endif
14
15#include "wx/gdicmn.h"
16
071a2d78 17#include <gdk/gdk.h>
307fc8d5 18#include <gdk/gdkx.h>
071a2d78 19#include <gdk/gdkprivate.h>
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20
21//-----------------------------------------------------------------------------
22// wxColour
23//-----------------------------------------------------------------------------
24
25class wxColourRefData: public wxObjectRefData
26{
47c93b63 27public:
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28 wxColourRefData();
29 ~wxColourRefData();
47c93b63 30
68dda785 31 void FreeColour();
8bbe427f 32
47c93b63 33public:
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34 GdkColor m_color;
35 GdkColormap *m_colormap;
36 bool m_hasPixel;
8bbe427f 37
f6bcfd97 38 friend class wxColour;
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39};
40
68dda785 41wxColourRefData::wxColourRefData()
c801d85f 42{
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43 m_color.red = 0;
44 m_color.green = 0;
45 m_color.blue = 0;
46 m_color.pixel = 0;
47 m_colormap = (GdkColormap *) NULL;
48 m_hasPixel = FALSE;
ff7b1510 49}
c801d85f 50
68dda785 51wxColourRefData::~wxColourRefData()
c801d85f 52{
1ecc4d80 53 FreeColour();
ff7b1510 54}
c801d85f 55
68dda785 56void wxColourRefData::FreeColour()
c801d85f 57{
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58 if (m_colormap)
59 {
60#ifdef __WXGTK20__
61 if ((m_colormap->visual->type == GDK_VISUAL_GRAYSCALE) ||
62 (m_colormap->visual->type == GDK_VISUAL_PSEUDO_COLOR))
63#else
64 GdkColormapPrivate *private_colormap = (GdkColormapPrivate*) m_colormap;
65 if ((private_colormap->visual->type == GDK_VISUAL_GRAYSCALE) ||
66 (private_colormap->visual->type == GDK_VISUAL_PSEUDO_COLOR))
67#endif
68 {
69 // What happens if the colour has not been allocated
70 // anew but has been found? RR.
71 gdk_colormap_free_colors( m_colormap, &m_color, 1 );
72 }
73 }
ff7b1510 74}
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75
76//-----------------------------------------------------------------------------
77
78#define M_COLDATA ((wxColourRefData *)m_refData)
79
80#define SHIFT (8*(sizeof(short int)-sizeof(char)))
81
82IMPLEMENT_DYNAMIC_CLASS(wxColour,wxGDIObject)
83
68dda785 84wxColour::wxColour()
c801d85f 85{
ff7b1510 86}
c801d85f 87
4b5f3fe6 88wxColour::wxColour( unsigned char red, unsigned char green, unsigned char blue )
c801d85f 89{
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90 m_refData = new wxColourRefData();
91 M_COLDATA->m_color.red = ((unsigned short)red) << SHIFT;
92 M_COLDATA->m_color.green = ((unsigned short)green) << SHIFT;
93 M_COLDATA->m_color.blue = ((unsigned short)blue) << SHIFT;
94 M_COLDATA->m_color.pixel = 0;
ff7b1510 95}
8bbe427f 96
68dda785 97void wxColour::InitFromName( const wxString &colourName )
c801d85f 98{
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99 wxNode *node = (wxNode *) NULL;
100 if ( (wxTheColourDatabase) && (node = wxTheColourDatabase->Find(colourName)) )
c801d85f 101 {
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102 wxColour *col = (wxColour*)node->Data();
103 UnRef();
104 if (col) Ref( *col );
105 }
106 else
107 {
108 m_refData = new wxColourRefData();
93c5dd39 109 if (!gdk_color_parse( colourName.mb_str(), &M_COLDATA->m_color ))
1ecc4d80 110 {
223d09f6 111 wxFAIL_MSG( wxT("wxColour: couldn't find colour") );
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112
113 delete m_refData;
114 m_refData = (wxObjectRefData *) NULL;
115 }
ff7b1510 116 }
ff7b1510 117}
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118
119wxColour::wxColour( const wxColour& col )
8bbe427f 120{
1ecc4d80 121 Ref( col );
ff7b1510 122}
c801d85f 123
68dda785 124wxColour::~wxColour()
c801d85f 125{
ff7b1510 126}
c801d85f 127
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128wxColour& wxColour::operator = ( const wxColour& col )
129{
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130 if (*this == col) return (*this);
131 Ref( col );
132 return *this;
ff7b1510 133}
c801d85f 134
33b64e6f 135bool wxColour::operator == ( const wxColour& col ) const
8bbe427f 136{
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137 if (m_refData == col.m_refData) return TRUE;
138
139 if (!m_refData) return FALSE;
140 if (!col.m_refData) return FALSE;
141
142 GdkColor *own = &(((wxColourRefData*)m_refData)->m_color);
143 GdkColor *other = &(((wxColourRefData*)col.m_refData)->m_color);
144 if (own->red != other->red) return FALSE;
145 if (own->blue != other->blue) return FALSE;
146 if (own->green != other->green) return FALSE;
147
148 return TRUE;
ff7b1510 149}
c801d85f 150
33b64e6f 151bool wxColour::operator != ( const wxColour& col) const
8bbe427f 152{
f6bcfd97 153 return !(*this == col);
ff7b1510 154}
c801d85f 155
4b5f3fe6 156void wxColour::Set( unsigned char red, unsigned char green, unsigned char blue )
c801d85f 157{
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158 UnRef();
159 m_refData = new wxColourRefData();
160 M_COLDATA->m_color.red = ((unsigned short)red) << SHIFT;
161 M_COLDATA->m_color.green = ((unsigned short)green) << SHIFT;
162 M_COLDATA->m_color.blue = ((unsigned short)blue) << SHIFT;
163 M_COLDATA->m_color.pixel = 0;
ff7b1510 164}
c801d85f 165
68dda785 166unsigned char wxColour::Red() const
c801d85f 167{
223d09f6 168 wxCHECK_MSG( Ok(), 0, wxT("invalid colour") );
8bbe427f 169
1ecc4d80 170 return (unsigned char)(M_COLDATA->m_color.red >> SHIFT);
ff7b1510 171}
c801d85f 172
68dda785 173unsigned char wxColour::Green() const
c801d85f 174{
223d09f6 175 wxCHECK_MSG( Ok(), 0, wxT("invalid colour") );
8bbe427f 176
1ecc4d80 177 return (unsigned char)(M_COLDATA->m_color.green >> SHIFT);
ff7b1510 178}
c801d85f 179
68dda785 180unsigned char wxColour::Blue() const
c801d85f 181{
223d09f6 182 wxCHECK_MSG( Ok(), 0, wxT("invalid colour") );
8bbe427f 183
1ecc4d80 184 return (unsigned char)(M_COLDATA->m_color.blue >> SHIFT);
ff7b1510 185}
c801d85f 186
68dda785 187bool wxColour::Ok() const
c801d85f 188{
1ecc4d80 189 return (m_refData != NULL);
ff7b1510 190}
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191
192void wxColour::CalcPixel( GdkColormap *cmap )
193{
1ecc4d80 194 if (!Ok()) return;
8bbe427f 195
1ecc4d80 196 if ((M_COLDATA->m_hasPixel) && (M_COLDATA->m_colormap == cmap)) return;
f234c60c 197
1ecc4d80 198 M_COLDATA->FreeColour();
8bbe427f 199
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200#ifdef __WXGTK20__
201 if ((cmap->visual->type == GDK_VISUAL_GRAYSCALE) ||
202 (cmap->visual->type == GDK_VISUAL_PSEUDO_COLOR))
203#else
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204 GdkColormapPrivate *private_colormap = (GdkColormapPrivate*) cmap;
205 if ((private_colormap->visual->type == GDK_VISUAL_GRAYSCALE) ||
206 (private_colormap->visual->type == GDK_VISUAL_PSEUDO_COLOR))
307fc8d5 207#endif
01111366 208 {
47c93b63 209 M_COLDATA->m_hasPixel = gdk_colormap_alloc_color( cmap, &M_COLDATA->m_color, FALSE, TRUE );
f6fcbb63 210 }
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211 else
212 {
213 M_COLDATA->m_hasPixel = gdk_color_alloc( cmap, &M_COLDATA->m_color );
214 }
8bbe427f 215
1ecc4d80 216 M_COLDATA->m_colormap = cmap;
ff7b1510 217}
c801d85f 218
68dda785 219int wxColour::GetPixel() const
c801d85f 220{
223d09f6 221 wxCHECK_MSG( Ok(), 0, wxT("invalid colour") );
8bbe427f 222
1ecc4d80 223 return M_COLDATA->m_color.pixel;
ff7b1510 224}
c801d85f 225
68dda785 226GdkColor *wxColour::GetColor() const
c801d85f 227{
223d09f6 228 wxCHECK_MSG( Ok(), (GdkColor *) NULL, wxT("invalid colour") );
8bbe427f 229
1ecc4d80 230 return &M_COLDATA->m_color;
ff7b1510 231}
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232
233