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Diffstat (limited to 'src/FbTk/Color.cc')
-rw-r--r-- | src/FbTk/Color.cc | 165 |
1 files changed, 165 insertions, 0 deletions
diff --git a/src/FbTk/Color.cc b/src/FbTk/Color.cc new file mode 100644 index 0000000..4a42d1c --- /dev/null +++ b/src/FbTk/Color.cc | |||
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1 | // Color.cc for Fluxbox window manager | ||
2 | // Copyright (c) 2002 - 2004 Henrik Kinnunen (fluxgen(at)users.sourceforge.net) | ||
3 | // | ||
4 | // Permission is hereby granted, free of charge, to any person obtaining a | ||
5 | // copy of this software and associated documentation files (the "Software"), | ||
6 | // to deal in the Software without restriction, including without limitation | ||
7 | // the rights to use, copy, modify, merge, publish, distribute, sublicense, | ||
8 | // and/or sell copies of the Software, and to permit persons to whom the | ||
9 | // Software is furnished to do so, subject to the following conditions: | ||
10 | // | ||
11 | // The above copyright notice and this permission notice shall be included in | ||
12 | // all copies or substantial portions of the Software. | ||
13 | // | ||
14 | // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR | ||
15 | // IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, | ||
16 | // FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL | ||
17 | // THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER | ||
18 | // LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING | ||
19 | // FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER | ||
20 | // DEALINGS IN THE SOFTWARE. | ||
21 | |||
22 | // $Id: Color.cc,v 1.8 2004/01/09 21:36:21 fluxgen Exp $ | ||
23 | |||
24 | #include "Color.hh" | ||
25 | |||
26 | #include "App.hh" | ||
27 | #include "StringUtil.hh" | ||
28 | |||
29 | #include <iostream> | ||
30 | using namespace std; | ||
31 | |||
32 | namespace FbTk { | ||
33 | |||
34 | Color::Color(): | ||
35 | m_red(0), m_green(0), m_blue(0), | ||
36 | m_pixel(0), | ||
37 | m_allocated(false), | ||
38 | m_screen(0) { | ||
39 | |||
40 | } | ||
41 | |||
42 | Color::Color(const Color &col_copy): | ||
43 | m_red(0), m_green(0), m_blue(0), | ||
44 | m_pixel(0), | ||
45 | m_allocated(false), m_screen(0) { | ||
46 | copy(col_copy); | ||
47 | } | ||
48 | |||
49 | Color::Color(unsigned short red, unsigned short green, unsigned short blue, int screen): | ||
50 | m_red(red), m_green(green), m_blue(blue), | ||
51 | m_pixel(0), m_allocated(false), | ||
52 | m_screen(screen) { | ||
53 | allocate(red, green, blue, screen); | ||
54 | } | ||
55 | |||
56 | Color::Color(const char *color_string, int screen): | ||
57 | m_red(0), m_green(0), m_blue(0), | ||
58 | m_pixel(0), | ||
59 | m_allocated(false), | ||
60 | m_screen(screen) { | ||
61 | setFromString(color_string, screen); | ||
62 | } | ||
63 | |||
64 | Color::~Color() { | ||
65 | free(); | ||
66 | } | ||
67 | |||
68 | bool Color::setFromString(const char *color_string, int screen) { | ||
69 | |||
70 | if (color_string == 0) { | ||
71 | free(); | ||
72 | return false; | ||
73 | } | ||
74 | string color_string_tmp = color_string; | ||
75 | StringUtil::removeFirstWhitespace(color_string_tmp); | ||
76 | StringUtil::removeTrailingWhitespace(color_string_tmp); | ||
77 | |||
78 | Display *disp = App::instance()->display(); | ||
79 | Colormap colm = DefaultColormap(disp, screen); | ||
80 | |||
81 | XColor color; | ||
82 | |||
83 | if (! XParseColor(disp, colm, color_string_tmp.c_str(), &color)) | ||
84 | return false; | ||
85 | else if (! XAllocColor(disp, colm, &color)) | ||
86 | return false; | ||
87 | |||
88 | setPixel(color.pixel); | ||
89 | setRGB(color.red, | ||
90 | color.green, | ||
91 | color.blue); | ||
92 | setAllocated(true); | ||
93 | m_screen = screen; | ||
94 | |||
95 | return true; | ||
96 | } | ||
97 | |||
98 | |||
99 | Color &Color::Color::operator = (const Color &col_copy) { | ||
100 | // check for aliasing | ||
101 | if (this == &col_copy) | ||
102 | return *this; | ||
103 | |||
104 | copy(col_copy); | ||
105 | return *this; | ||
106 | } | ||
107 | |||
108 | void Color::free() { | ||
109 | if (isAllocated()) { | ||
110 | unsigned long pixel = m_pixel; | ||
111 | Display *disp = App::instance()->display(); | ||
112 | XFreeColors(disp, DefaultColormap(disp, m_screen), &pixel, 1, 0); | ||
113 | setPixel(0); | ||
114 | setRGB(0, 0, 0); | ||
115 | setAllocated(false); | ||
116 | } | ||
117 | } | ||
118 | |||
119 | void Color::copy(const Color &col_copy) { | ||
120 | if (!col_copy.isAllocated()) { | ||
121 | free(); | ||
122 | setRGB(col_copy.red(), col_copy.green(), col_copy.blue()); | ||
123 | setPixel(col_copy.pixel()); | ||
124 | return; | ||
125 | } | ||
126 | |||
127 | free(); | ||
128 | |||
129 | allocate(col_copy.red(), | ||
130 | col_copy.green(), | ||
131 | col_copy.blue(), | ||
132 | col_copy.m_screen); | ||
133 | |||
134 | |||
135 | } | ||
136 | |||
137 | void Color::allocate(unsigned short red, unsigned short green, unsigned short blue, int screen) { | ||
138 | |||
139 | Display *disp = App::instance()->display(); | ||
140 | XColor color; | ||
141 | // fill xcolor structure | ||
142 | color.red = red; | ||
143 | color.green = green; | ||
144 | color.blue = blue; | ||
145 | |||
146 | if (XAllocColor(disp, DefaultColormap(disp, screen), &color) == 0) { | ||
147 | cerr<<"FbTk::Color: Allocation error."<<endl; | ||
148 | } else { | ||
149 | setRGB(color.red, | ||
150 | color.green, | ||
151 | color.blue); | ||
152 | setPixel(color.pixel); | ||
153 | setAllocated(true); | ||
154 | } | ||
155 | |||
156 | m_screen = screen; | ||
157 | } | ||
158 | |||
159 | void Color::setRGB(unsigned short red, unsigned short green, unsigned short blue) { | ||
160 | m_red = red; | ||
161 | m_green = green; | ||
162 | m_blue = blue; | ||
163 | } | ||
164 | |||
165 | }; | ||