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1 | ///////////////////////////////////////////////////////////////////////////// | |
2 | // Name: imaglist.h | |
3 | // Purpose: interface of wxImageList | |
4 | // Author: wxWidgets team | |
5 | // RCS-ID: $Id$ | |
6 | // Licence: wxWindows licence | |
7 | ///////////////////////////////////////////////////////////////////////////// | |
8 | ||
9 | /** | |
10 | @class wxImageList | |
11 | ||
12 | A wxImageList contains a list of images, which are stored in an unspecified | |
13 | form. Images can have masks for transparent drawing, and can be made from a | |
14 | variety of sources including bitmaps and icons. | |
15 | ||
16 | wxImageList is used principally in conjunction with wxTreeCtrl and | |
17 | wxListCtrl classes. | |
18 | ||
19 | @library{wxcore} | |
20 | @category{gdi} | |
21 | ||
22 | @see wxTreeCtrl, wxListCtrl | |
23 | */ | |
24 | class wxImageList : public wxObject | |
25 | { | |
26 | public: | |
27 | /** | |
28 | Default ctor. | |
29 | */ | |
30 | wxImageList(); | |
31 | ||
32 | /** | |
33 | Constructor specifying the image size, whether image masks should be created, | |
34 | and the initial size of the list. | |
35 | ||
36 | @param width | |
37 | Width of the images in the list. | |
38 | @param height | |
39 | Height of the images in the list. | |
40 | @param mask | |
41 | @true if masks should be created for all images. | |
42 | @param initialCount | |
43 | The initial size of the list. | |
44 | ||
45 | @see Create() | |
46 | */ | |
47 | wxImageList(int width, int height, bool mask = true, | |
48 | int initialCount = 1); | |
49 | ||
50 | /** | |
51 | Adds a new image or images using a bitmap and optional mask bitmap. | |
52 | ||
53 | @param bitmap | |
54 | Bitmap representing the opaque areas of the image. | |
55 | @param mask | |
56 | Monochrome mask bitmap, representing the transparent areas of the image. | |
57 | ||
58 | @return The new zero-based image index. | |
59 | ||
60 | @remarks The original bitmap or icon is not affected by the Add() | |
61 | operation, and can be deleted afterwards. | |
62 | If the bitmap is wider than the images in the list, then the | |
63 | bitmap will automatically be split into smaller images, each | |
64 | matching the dimensions of the image list. | |
65 | This does not apply when adding icons. | |
66 | */ | |
67 | int Add(const wxBitmap& bitmap, | |
68 | const wxBitmap& mask = wxNullBitmap); | |
69 | ||
70 | /** | |
71 | Adds a new image or images using a bitmap and mask colour. | |
72 | ||
73 | @param bitmap | |
74 | Bitmap representing the opaque areas of the image. | |
75 | @param maskColour | |
76 | Colour indicating which parts of the image are transparent. | |
77 | ||
78 | @return The new zero-based image index. | |
79 | ||
80 | @remarks The original bitmap or icon is not affected by the Add() | |
81 | operation, and can be deleted afterwards. | |
82 | If the bitmap is wider than the images in the list, then the | |
83 | bitmap will automatically be split into smaller images, each | |
84 | matching the dimensions of the image list. | |
85 | This does not apply when adding icons. | |
86 | */ | |
87 | int Add(const wxBitmap& bitmap, const wxColour& maskColour); | |
88 | ||
89 | /** | |
90 | Adds a new image using an icon. | |
91 | ||
92 | @param icon | |
93 | Icon to use as the image. | |
94 | ||
95 | @return The new zero-based image index. | |
96 | ||
97 | @remarks The original bitmap or icon is not affected by the Add() | |
98 | operation, and can be deleted afterwards. | |
99 | If the bitmap is wider than the images in the list, then the | |
100 | bitmap will automatically be split into smaller images, each | |
101 | matching the dimensions of the image list. | |
102 | This does not apply when adding icons. | |
103 | ||
104 | @onlyfor{wxmsw,wxosx} | |
105 | */ | |
106 | int Add(const wxIcon& icon); | |
107 | ||
108 | /** | |
109 | Initializes the list. See wxImageList() for details. | |
110 | */ | |
111 | bool Create(int width, int height, bool mask = true, | |
112 | int initialCount = 1); | |
113 | ||
114 | /** | |
115 | Draws a specified image onto a device context. | |
116 | ||
117 | @param index | |
118 | Image index, starting from zero. | |
119 | @param dc | |
120 | Device context to draw on. | |
121 | @param x | |
122 | X position on the device context. | |
123 | @param y | |
124 | Y position on the device context. | |
125 | @param flags | |
126 | How to draw the image. A bitlist of a selection of the following: | |
127 | - wxIMAGELIST_DRAW_NORMAL: Draw the image normally. | |
128 | - wxIMAGELIST_DRAW_TRANSPARENT: Draw the image with transparency. | |
129 | - wxIMAGELIST_DRAW_SELECTED: Draw the image in selected state. | |
130 | - wxIMAGELIST_DRAW_FOCUSED: Draw the image in a focused state. | |
131 | @param solidBackground | |
132 | For optimisation - drawing can be faster if the function is told | |
133 | that the background is solid. | |
134 | */ | |
135 | virtual bool Draw(int index, wxDC& dc, int x, int y, | |
136 | int flags = wxIMAGELIST_DRAW_NORMAL, | |
137 | bool solidBackground = false); | |
138 | ||
139 | /** | |
140 | Returns the bitmap corresponding to the given index. | |
141 | */ | |
142 | wxBitmap GetBitmap(int index) const; | |
143 | ||
144 | /** | |
145 | Returns the icon corresponding to the given index. | |
146 | */ | |
147 | wxIcon GetIcon(int index) const; | |
148 | ||
149 | /** | |
150 | Returns the number of images in the list. | |
151 | */ | |
152 | virtual int GetImageCount() const; | |
153 | ||
154 | /** | |
155 | Retrieves the size of the images in the list. Currently, the @a index | |
156 | parameter is ignored as all images in the list have the same size. | |
157 | ||
158 | @param index | |
159 | currently unused, should be 0 | |
160 | @param width | |
161 | receives the width of the images in the list | |
162 | @param height | |
163 | receives the height of the images in the list | |
164 | ||
165 | @return @true if the function succeeded, @false if it failed | |
166 | (for example, if the image list was not yet initialized). | |
167 | */ | |
168 | virtual bool GetSize(int index, int& width, int& height) const; | |
169 | ||
170 | /** | |
171 | Removes the image at the given position. | |
172 | */ | |
173 | bool Remove(int index); | |
174 | ||
175 | /** | |
176 | Removes all the images in the list. | |
177 | */ | |
178 | bool RemoveAll(); | |
179 | ||
180 | /** | |
181 | Replaces the existing image with the new image. | |
182 | Windows only. | |
183 | ||
184 | @param index | |
185 | The index of the bitmap to be replaced. | |
186 | @param bitmap | |
187 | Bitmap representing the opaque areas of the image. | |
188 | @param mask | |
189 | Monochrome mask bitmap, representing the transparent areas of the image. | |
190 | ||
191 | @return @true if the replacement was successful, @false otherwise. | |
192 | ||
193 | @remarks The original bitmap or icon is not affected by the Replace() | |
194 | operation, and can be deleted afterwards. | |
195 | */ | |
196 | bool Replace(int index, const wxBitmap& bitmap, | |
197 | const wxBitmap& mask = wxNullBitmap); | |
198 | ||
199 | /** | |
200 | Replaces the existing image with the new image. | |
201 | ||
202 | @param index | |
203 | The index of the bitmap to be replaced. | |
204 | @param icon | |
205 | Icon to use as the image. | |
206 | ||
207 | @return @true if the replacement was successful, @false otherwise. | |
208 | ||
209 | @remarks The original bitmap or icon is not affected by the Replace() | |
210 | operation, and can be deleted afterwards. | |
211 | ||
212 | @onlyfor{wxmsw,wxosx} | |
213 | */ | |
214 | bool Replace(int index, const wxIcon& icon); | |
215 | }; | |
216 |