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1 | \section{\class{wxColour}}\label{wxcolour} | |
2 | ||
3 | A colour is an object representing a combination of Red, Green, and Blue (RGB) intensity values, | |
4 | and is used to determine drawing colours. See the | |
5 | entry for \helpref{wxColourDatabase}{wxcolourdatabase} for how a pointer to a predefined, | |
6 | named colour may be returned instead of creating a new colour. | |
7 | ||
8 | Valid RGB values are in the range 0 to 255. | |
9 | ||
10 | \wxheading{Derived from} | |
11 | ||
12 | \helpref{wxObject}{wxobject} | |
13 | ||
14 | \wxheading{See also} | |
15 | ||
16 | \helpref{wxColourDatabase}{wxcolourdatabase}, \helpref{wxPen}{wxpen}, \helpref{wxBrush}{wxbrush},\rtfsp | |
17 | \helpref{wxColourDialog}{wxcolourdialog} | |
18 | ||
19 | \latexignore{\rtfignore{\wxheading{Members}}} | |
20 | ||
21 | \membersection{wxColour::wxColour}\label{wxcolourconstr} | |
22 | ||
23 | \func{}{wxColour}{\void} | |
24 | ||
25 | Default constructor. | |
26 | ||
27 | \func{}{wxColour}{\param{const unsigned char}{ red}, \param{const unsigned char}{ green}, \param{const unsigned char}{ blue}} | |
28 | ||
29 | Constructs a colour from red, green and blue values. | |
30 | ||
31 | \func{}{wxColour}{\param{const wxString\& }{colourNname}} | |
32 | ||
33 | Constructs a colour object using a colour name | |
34 | listed in {\bf wxTheColourDatabase}. | |
35 | ||
36 | \wxheading{Parameters} | |
37 | ||
38 | \docparam{red}{The red value.} | |
39 | ||
40 | \docparam{green}{The green value.} | |
41 | ||
42 | \docparam{blue}{The blue value.} | |
43 | ||
44 | \docparam{colourName}{The colour name.} | |
45 | ||
46 | \wxheading{See also} | |
47 | ||
48 | \helpref{wxColourDatabase}{wxcolourdatabase} | |
49 | ||
50 | \membersection{wxColour::Blue}\label{wxcolourblue} | |
51 | ||
52 | \constfunc{unsigned char}{Blue}{\void} | |
53 | ||
54 | Returns the blue intensity. | |
55 | ||
56 | \membersection{wxColour::GetPixel}\label{wxcolourgetpixel} | |
57 | ||
58 | \constfunc{long}{GetPixel}{\void} | |
59 | ||
60 | Returns a pixel value which is platform-dependent. On Windows, a COLORREF is returned. | |
61 | On X, an allocated pixel value is returned. | |
62 | ||
63 | -1 is returned if the pixel is invalid (on X, unallocated). | |
64 | ||
65 | \membersection{wxColour::Green}\label{wxcolourgreen} | |
66 | ||
67 | \constfunc{unsigned char}{Green}{\void} | |
68 | ||
69 | Returns the green intensity. | |
70 | ||
71 | \membersection{wxColour::Ok}\label{wxcolourok} | |
72 | ||
73 | \constfunc{bool}{Ok}{\void} | |
74 | ||
75 | Returns TRUE if the colour object is valid (the colour has been initialised with RGB values). | |
76 | ||
77 | \membersection{wxColour::Red}\label{wxcolourred} | |
78 | ||
79 | \constfunc{unsigned char}{Red}{\void} | |
80 | ||
81 | Returns the red intensity. | |
82 | ||
83 | \membersection{wxColour::Set}\label{wxcolourset} | |
84 | ||
85 | \func{void}{Set}{\param{const unsigned char}{ red}, \param{const unsigned char}{ green}, \param{const unsigned char}{ blue}} | |
86 | ||
87 | Sets the RGB intensity values. | |
88 | ||
89 | \membersection{wxColour::operator $=$}\label{wxcolourassign} | |
90 | ||
91 | \func{wxColour\&}{operator $=$}{\param{const wxColour\&}{ colour}} | |
92 | ||
93 | Assignment operator, taking another colour object. | |
94 | ||
95 | \func{wxColour\&}{operator $=$}{\param{const wxString\&}{ colourName}} | |
96 | ||
97 | Assignment operator, using a colour name to be found in the colour database. | |
98 | ||
99 | \wxheading{See also} | |
100 | ||
101 | \helpref{wxColourDatabase}{wxcolourdatabase} | |
102 | ||
103 | \membersection{wxColour::operator $==$}\label{wxcolourequality} | |
104 | ||
105 | \func{bool}{operator $==$}{\param{const wxColour\&}{ colour}} | |
106 | ||
107 | Tests the equality of two colours by comparing individual red, green blue colours. | |
108 | ||
109 | TODO: this may be different on platforms other than Windows - no reference counting | |
110 | is done on Windows. | |
111 | ||
112 | \membersection{wxColour::operator $!=$}\label{wxcolourinequality} | |
113 | ||
114 | \func{bool}{operator $!=$}{\param{const wxColour\&}{ colour}} | |
115 | ||
116 | Tests the inequality of two colours by comparing individual red, green blue colours. | |
117 | ||
118 | TODO: this may be different on platforms other than Windows - no reference counting | |
119 | is done on Windows. | |
120 | ||
121 | \section{\class{wxColourData}}\label{wxcolourdata} | |
122 | ||
123 | This class holds a variety of information related to colour dialogs. | |
124 | ||
125 | \wxheading{Derived from} | |
126 | ||
127 | \helpref{wxObject}{wxobject} | |
128 | ||
129 | \wxheading{See also} | |
130 | ||
131 | \helpref{wxColour}{wxcolour}, \helpref{wxColourDialog}{wxcolourdialog}, \helpref{wxColourDialog overview}{wxcolourdialogoverview} | |
132 | ||
133 | \latexignore{\rtfignore{\wxheading{Members}}} | |
134 | ||
135 | \membersection{wxColourData::wxColourData}\label{wxcolourdataconstr} | |
136 | ||
137 | \func{}{wxColourData}{\void} | |
138 | ||
139 | Constructor. Initializes the custom colours to white, the {\it data colour} setting | |
140 | to black, and the {\it choose full} setting to TRUE. | |
141 | ||
142 | \membersection{wxColourData::\destruct{wxColourData}} | |
143 | ||
144 | \func{}{\destruct{wxColourData}}{\void} | |
145 | ||
146 | Destructor. | |
147 | ||
148 | \membersection{wxColourData::GetChooseFull}\label{wxcolourdatagetchoosefull} | |
149 | ||
150 | \constfunc{bool}{GetChooseFull}{\void} | |
151 | ||
152 | Under Windows, determines whether the Windows colour dialog will display the full dialog | |
153 | with custom colour selection controls. Has no meaning under other platforms. | |
154 | ||
155 | The default value is TRUE. | |
156 | ||
157 | \membersection{wxColourData::GetColour}\label{wxcolourdatagetcolour} | |
158 | ||
159 | \constfunc{wxColour\&}{GetColour}{\void} | |
160 | ||
161 | Gets the current colour associated with the colour dialog. | |
162 | ||
163 | The default colour is black. | |
164 | ||
165 | \membersection{wxColourData::GetCustomColour}\label{wxcolourdatagetcustomcolour} | |
166 | ||
167 | \constfunc{wxColour\&}{GetCustomColour}{\param{int}{ i}} | |
168 | ||
169 | Gets the {\it i}th custom colour associated with the colour dialog. {\it i} should | |
170 | be an integer between 0 and 15. | |
171 | ||
172 | The default custom colours are all white. | |
173 | ||
174 | \membersection{wxColourData::SetChooseFull}\label{wxcolourdatasetchoosefull} | |
175 | ||
176 | \func{void}{SetChooseFull}{\param{const bool }{flag}} | |
177 | ||
178 | Under Windows, tells the Windows colour dialog to display the full dialog | |
179 | with custom colour selection controls. Under other platforms, has no effect. | |
180 | ||
181 | The default value is TRUE. | |
182 | ||
183 | \membersection{wxColourData::SetColour}\label{wxcolourdatasetcolour} | |
184 | ||
185 | \func{void}{SetColour}{\param{const wxColour\&}{ colour}} | |
186 | ||
187 | Sets the default colour for the colour dialog. | |
188 | ||
189 | The default colour is black. | |
190 | ||
191 | \membersection{wxColourData::SetCustomColour}\label{wxcolourdatasetcustomcolour} | |
192 | ||
193 | \func{void}{SetColour}{\param{int}{ i}, \param{const wxColour\&}{ colour}} | |
194 | ||
195 | Sets the {\it i}th custom colour for the colour dialog. {\it i} should | |
196 | be an integer between 0 and 15. | |
197 | ||
198 | The default custom colours are all white. | |
199 | ||
200 | \membersection{wxColourData::operator $=$}\label{wxcolourdataassign} | |
201 | ||
202 | \func{void}{operator $=$}{\param{const wxColourData\&}{ data}} | |
203 | ||
204 | Assingment operator for the colour data. | |
205 | ||
206 | \section{\class{wxColourDatabase}}\label{wxcolourdatabase} | |
207 | ||
208 | wxWindows maintains a database of standard RGB colours for a predefined | |
209 | set of named colours (such as ``BLACK'', ``LIGHT GREY''). The | |
210 | application may add to this set if desired by using {\it Append}. There | |
211 | is only one instance of this class: {\bf wxTheColourDatabase}. | |
212 | ||
213 | \wxheading{Derived from} | |
214 | ||
215 | \helpref{wxList}{wxlist}\\ | |
216 | \helpref{wxObject}{wxobject} | |
217 | ||
218 | \wxheading{Remarks} | |
219 | ||
220 | The colours in the standard database are as follows: | |
221 | ||
222 | AQUAMARINE, BLACK, BLUE, BLUE VIOLET, BROWN, CADET BLUE, CORAL, | |
223 | CORNFLOWER BLUE, CYAN, DARK GREY, DARK GREEN, DARK OLIVE GREEN, DARK | |
224 | ORCHID, DARK SLATE BLUE, DARK SLATE GREY DARK TURQUOISE, DIM GREY, | |
225 | FIREBRICK, FOREST GREEN, GOLD, GOLDENROD, GREY, GREEN, GREEN YELLOW, | |
226 | INDIAN RED, KHAKI, LIGHT BLUE, LIGHT GREY, LIGHT STEEL BLUE, LIME GREEN, | |
227 | MAGENTA, MAROON, MEDIUM AQUAMARINE, MEDIUM BLUE, MEDIUM FOREST GREEN, | |
228 | MEDIUM GOLDENROD, MEDIUM ORCHID, MEDIUM SEA GREEN, MEDIUM SLATE BLUE, | |
229 | MEDIUM SPRING GREEN, MEDIUM TURQUOISE, MEDIUM VIOLET RED, MIDNIGHT BLUE, | |
230 | NAVY, ORANGE, ORANGE RED, ORCHID, PALE GREEN, PINK, PLUM, PURPLE, RED, | |
231 | SALMON, SEA GREEN, SIENNA, SKY BLUE, SLATE BLUE, SPRING GREEN, STEEL | |
232 | BLUE, TAN, THISTLE, TURQUOISE, VIOLET, VIOLET RED, WHEAT, WHITE, YELLOW, | |
233 | YELLOW GREEN. | |
234 | ||
235 | \wxheading{See also} | |
236 | ||
237 | \helpref{wxColour}{wxcolour} | |
238 | ||
239 | \latexignore{\rtfignore{\wxheading{Members}}} | |
240 | ||
241 | \membersection{wxColourDatabase::wxColourDatabase}\label{wxcolourdatabaseconstr} | |
242 | ||
243 | \func{}{wxColourDatabase}{\void} | |
244 | ||
245 | Constructs the colour database. | |
246 | ||
247 | \membersection{wxColourDatabase::FindColour}\label{wxcolourdatabasefindcolour} | |
248 | ||
249 | \func{wxColour*}{FindColour}{\param{const wxString\& }{colourName}} | |
250 | ||
251 | Finds a colour given the name. Returns NULL if not found. | |
252 | ||
253 | \membersection{wxColourDatabase::FindName}\label{wxcolourdatabasefindname} | |
254 | ||
255 | \constfunc{wxString}{FindName}{\param{const wxColour\&}{ colour}} | |
256 | ||
257 | Finds a colour name given the colour. Returns NULL if not found. | |
258 | ||
259 | \membersection{wxColourDatabase::Initialize}\label{wxcolourdatabaseinitialize} | |
260 | ||
261 | \func{void}{Initialize}{\void} | |
262 | ||
263 | Initializes the database with a number of stock colours. Called by wxWindows | |
264 | on start-up. | |
265 | ||
266 |