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c801d85f | 1 | ///////////////////////////////////////////////////////////////////////////// |
edc536d3 | 2 | // Name: src/gtk/colour.cpp |
c801d85f KB |
3 | // Purpose: |
4 | // Author: Robert Roebling | |
dbf858b5 RR |
5 | // Id: $Id$ |
6 | // Copyright: (c) 1998 Robert Roebling | |
65571936 | 7 | // Licence: wxWindows licence |
c801d85f KB |
8 | ///////////////////////////////////////////////////////////////////////////// |
9 | ||
14f355c2 VS |
10 | // For compilers that support precompilation, includes "wx.h". |
11 | #include "wx/wxprec.h" | |
12 | ||
ed39ff57 | 13 | #include "wx/colour.h" |
40989e46 | 14 | |
2b5f62a0 | 15 | #include "wx/gtk/private.h" |
c801d85f | 16 | |
071a2d78 | 17 | #include <gdk/gdk.h> |
c801d85f KB |
18 | |
19 | //----------------------------------------------------------------------------- | |
20 | // wxColour | |
21 | //----------------------------------------------------------------------------- | |
22 | ||
23 | class wxColourRefData: public wxObjectRefData | |
24 | { | |
47c93b63 | 25 | public: |
dc888336 | 26 | wxColourRefData(guint16 red, guint16 green, guint16 blue, guint16 alpha) |
c89f5c02 | 27 | { |
fa21f438 | 28 | m_color.red = |
c6685317 | 29 | m_red = red; |
fa21f438 | 30 | m_color.green = |
c6685317 | 31 | m_green = green; |
fa21f438 | 32 | m_color.blue = |
c6685317 | 33 | m_blue = blue; |
dc888336 | 34 | m_alpha = alpha; |
c89f5c02 | 35 | m_color.pixel = 0; |
c4fa282c | 36 | m_colormap = NULL; |
dbb846c6 VZ |
37 | } |
38 | ||
d3c7fc99 | 39 | virtual ~wxColourRefData() |
c89f5c02 RR |
40 | { |
41 | FreeColour(); | |
42 | } | |
15248e43 | 43 | |
68dda785 | 44 | void FreeColour(); |
d13fd3e4 | 45 | void AllocColour( GdkColormap* cmap ); |
8bbe427f | 46 | |
c801d85f KB |
47 | GdkColor m_color; |
48 | GdkColormap *m_colormap; | |
c6685317 PC |
49 | // gdk_colormap_alloc_color may change the RGB values in m_color, so we need separate copies |
50 | guint16 m_red; | |
51 | guint16 m_green; | |
52 | guint16 m_blue; | |
dc888336 | 53 | guint16 m_alpha; |
c6685317 PC |
54 | |
55 | DECLARE_NO_COPY_CLASS(wxColourRefData) | |
c801d85f KB |
56 | }; |
57 | ||
68dda785 | 58 | void wxColourRefData::FreeColour() |
c801d85f | 59 | { |
c6685317 | 60 | if (m_colormap) |
47c93b63 | 61 | { |
c4fa282c | 62 | gdk_colormap_free_colors(m_colormap, &m_color, 1); |
c6685317 PC |
63 | m_colormap = NULL; |
64 | m_color.pixel = 0; | |
47c93b63 | 65 | } |
ff7b1510 | 66 | } |
c801d85f | 67 | |
d13fd3e4 VZ |
68 | void wxColourRefData::AllocColour( GdkColormap *cmap ) |
69 | { | |
c6685317 PC |
70 | if (m_colormap != cmap) |
71 | { | |
72 | FreeColour(); | |
4e6b8309 | 73 | |
c6685317 PC |
74 | m_color.red = m_red; |
75 | m_color.green = m_green; | |
76 | m_color.blue = m_blue; | |
77 | if (gdk_colormap_alloc_color(cmap, &m_color, FALSE, TRUE)) | |
78 | { | |
79 | m_colormap = cmap; | |
80 | } | |
81 | } | |
d13fd3e4 VZ |
82 | } |
83 | ||
c801d85f KB |
84 | //----------------------------------------------------------------------------- |
85 | ||
c4fa282c | 86 | #define M_COLDATA wx_static_cast(wxColourRefData*, m_refData) |
c801d85f | 87 | |
c6685317 | 88 | // GDK's values are in 0..65535 range, ours are in 0..255 |
3b9faf4c | 89 | #define SHIFT 8 |
c801d85f KB |
90 | |
91 | IMPLEMENT_DYNAMIC_CLASS(wxColour,wxGDIObject) | |
92 | ||
c6685317 PC |
93 | wxColour::wxColour(const GdkColor& gdkColor) |
94 | { | |
dc888336 | 95 | m_refData = new wxColourRefData(gdkColor.red, gdkColor.green, gdkColor.blue, 0xFFFF /*opaque alpha in 16 bit*/); |
c6685317 PC |
96 | } |
97 | ||
68dda785 | 98 | wxColour::~wxColour() |
c801d85f | 99 | { |
ff7b1510 | 100 | } |
c801d85f | 101 | |
33b64e6f | 102 | bool wxColour::operator == ( const wxColour& col ) const |
8bbe427f | 103 | { |
4e6b8309 | 104 | if (m_refData == col.m_refData) |
aad6765c | 105 | return true; |
15248e43 | 106 | |
4e6b8309 | 107 | if (!m_refData || !col.m_refData) |
aad6765c | 108 | return false; |
15248e43 | 109 | |
c6685317 PC |
110 | wxColourRefData* refData = M_COLDATA; |
111 | wxColourRefData* that_refData = wx_static_cast(wxColourRefData*, col.m_refData); | |
112 | return refData->m_red == that_refData->m_red && | |
113 | refData->m_green == that_refData->m_green && | |
dc888336 SC |
114 | refData->m_blue == that_refData->m_blue && |
115 | refData->m_alpha == that_refData->m_alpha; | |
ff7b1510 | 116 | } |
c801d85f | 117 | |
aea95b1c | 118 | void wxColour::InitRGBA(unsigned char red, unsigned char green, unsigned char blue, |
dc888336 | 119 | unsigned char alpha) |
c801d85f | 120 | { |
c6685317 | 121 | UnRef(); |
4e6b8309 | 122 | |
c6685317 PC |
123 | m_refData = new wxColourRefData( |
124 | (guint16(red) << SHIFT) + red, | |
125 | (guint16(green) << SHIFT) + green, | |
dc888336 SC |
126 | (guint16(blue) << SHIFT) + blue, |
127 | (guint16(alpha) << SHIFT) + alpha); | |
ff7b1510 | 128 | } |
c801d85f | 129 | |
68dda785 | 130 | unsigned char wxColour::Red() const |
c801d85f | 131 | { |
223d09f6 | 132 | wxCHECK_MSG( Ok(), 0, wxT("invalid colour") ); |
8bbe427f | 133 | |
c6685317 | 134 | return wxByte(M_COLDATA->m_red >> SHIFT); |
ff7b1510 | 135 | } |
c801d85f | 136 | |
68dda785 | 137 | unsigned char wxColour::Green() const |
c801d85f | 138 | { |
223d09f6 | 139 | wxCHECK_MSG( Ok(), 0, wxT("invalid colour") ); |
8bbe427f | 140 | |
c6685317 | 141 | return wxByte(M_COLDATA->m_green >> SHIFT); |
ff7b1510 | 142 | } |
c801d85f | 143 | |
68dda785 | 144 | unsigned char wxColour::Blue() const |
c801d85f | 145 | { |
223d09f6 | 146 | wxCHECK_MSG( Ok(), 0, wxT("invalid colour") ); |
8bbe427f | 147 | |
c6685317 | 148 | return wxByte(M_COLDATA->m_blue >> SHIFT); |
ff7b1510 | 149 | } |
c801d85f | 150 | |
dc888336 SC |
151 | unsigned char wxColour::Alpha() const |
152 | { | |
153 | wxCHECK_MSG( Ok(), 0, wxT("invalid colour") ); | |
154 | ||
155 | return wxByte(M_COLDATA->m_alpha >> SHIFT); | |
156 | } | |
157 | ||
c801d85f KB |
158 | void wxColour::CalcPixel( GdkColormap *cmap ) |
159 | { | |
1ecc4d80 | 160 | if (!Ok()) return; |
8bbe427f | 161 | |
d13fd3e4 | 162 | M_COLDATA->AllocColour( cmap ); |
ff7b1510 | 163 | } |
c801d85f | 164 | |
68dda785 | 165 | int wxColour::GetPixel() const |
c801d85f | 166 | { |
223d09f6 | 167 | wxCHECK_MSG( Ok(), 0, wxT("invalid colour") ); |
8bbe427f | 168 | |
1ecc4d80 | 169 | return M_COLDATA->m_color.pixel; |
ff7b1510 | 170 | } |
c801d85f | 171 | |
c6685317 | 172 | const GdkColor *wxColour::GetColor() const |
c801d85f | 173 | { |
c4fa282c | 174 | wxCHECK_MSG( Ok(), NULL, wxT("invalid colour") ); |
8bbe427f | 175 | |
1ecc4d80 | 176 | return &M_COLDATA->m_color; |
ff7b1510 | 177 | } |
40989e46 | 178 | |
e86d4e59 | 179 | bool wxColour::FromString(const wxString& str) |
40989e46 WS |
180 | { |
181 | GdkColor colGDK; | |
182 | if ( gdk_color_parse( wxGTK_CONV_SYS( str ), &colGDK ) ) | |
183 | { | |
c6685317 | 184 | *this = wxColour(colGDK); |
40989e46 WS |
185 | return true; |
186 | } | |
187 | ||
188 | return wxColourBase::FromString(str); | |
189 | } |