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1 /////////////////////////////////////////////////////////////////////////////
2 // Name: artstd.cpp
3 // Purpose: stock wxArtProvider instance with native GTK+ stock icons
4 // Author: Vaclav Slavik
5 // Modified by:
6 // Created: 2004-08-22
7 // RCS-ID: $Id$
8 // Copyright: (c) Vaclav Slavik, 2004
9 // Licence: wxWindows licence
10 /////////////////////////////////////////////////////////////////////////////
11
12 // ---------------------------------------------------------------------------
13 // headers
14 // ---------------------------------------------------------------------------
15
16 // For compilers that support precompilation, includes "wx.h".
17 #include "wx/wxprec.h"
18
19 #if defined(__BORLANDC__)
20 #pragma hdrstop
21 #endif
22
23 #if defined(__WXGTK20__) && !defined(__WXUNIVERSAL__)
24
25 #include "wx/artprov.h"
26 #include "wx/module.h"
27
28 #include <gtk/gtk.h>
29
30 // compatibility with older GTK+ versions:
31 #ifndef GTK_STOCK_FILE
32 #define GTK_STOCK_FILE "gtk-file"
33 #endif
34 #ifndef GTK_STOCK_DIRECTORY
35 #define GTK_STOCK_DIRECTORY "gtk-directory"
36 #endif
37
38
39 // ----------------------------------------------------------------------------
40 // wxGTK2ArtProvider
41 // ----------------------------------------------------------------------------
42
43 class wxGTK2ArtProvider : public wxArtProvider
44 {
45 protected:
46 virtual wxBitmap CreateBitmap(const wxArtID& id, const wxArtClient& client,
47 const wxSize& size);
48 };
49
50 /*static*/ void wxArtProvider::InitNativeProvider()
51 {
52 wxArtProvider::PushProvider(new wxGTK2ArtProvider);
53 }
54
55 // ----------------------------------------------------------------------------
56 // CreateBitmap routine
57 // ----------------------------------------------------------------------------
58
59 static const char *wxArtIDToStock(const wxArtID& id)
60 {
61 #define ART(wxid, gtkid) \
62 if (id == wxid) return gtkid;
63
64 ART(wxART_ERROR, GTK_STOCK_DIALOG_ERROR)
65 ART(wxART_INFORMATION, GTK_STOCK_DIALOG_INFO)
66 ART(wxART_WARNING, GTK_STOCK_DIALOG_WARNING)
67 ART(wxART_QUESTION, GTK_STOCK_DIALOG_QUESTION)
68
69 //ART(wxART_HELP_SIDE_PANEL, )
70 ART(wxART_HELP_SETTINGS, GTK_STOCK_SELECT_FONT)
71 //ART(wxART_HELP_BOOK, )
72 ART(wxART_HELP_FOLDER, GTK_STOCK_DIRECTORY)
73 ART(wxART_HELP_PAGE, GTK_STOCK_FILE)
74 ART(wxART_MISSING_IMAGE, GTK_STOCK_MISSING_IMAGE)
75 ART(wxART_ADD_BOOKMARK, GTK_STOCK_ADD)
76 ART(wxART_DEL_BOOKMARK, GTK_STOCK_REMOVE)
77 ART(wxART_GO_BACK, GTK_STOCK_GO_BACK)
78 ART(wxART_GO_FORWARD, GTK_STOCK_GO_FORWARD)
79 ART(wxART_GO_UP, GTK_STOCK_GO_UP)
80 ART(wxART_GO_DOWN, GTK_STOCK_GO_DOWN)
81 ART(wxART_GO_TO_PARENT, GTK_STOCK_GO_UP)
82 ART(wxART_GO_HOME, GTK_STOCK_HOME)
83 ART(wxART_FILE_OPEN, GTK_STOCK_OPEN)
84 ART(wxART_PRINT, GTK_STOCK_PRINT)
85 ART(wxART_HELP, GTK_STOCK_HELP)
86 ART(wxART_TIP, GTK_STOCK_DIALOG_INFO)
87 //ART(wxART_REPORT_VIEW, )
88 //ART(wxART_LIST_VIEW, )
89 //ART(wxART_NEW_DIR, )
90 #ifdef __WXGTK24__
91 ART(wxART_FOLDER, GTK_STOCK_DIRECTORY)
92 ART(wxART_FOLDER_OPEN, GTK_STOCK_DIRECTORY)
93 #endif
94 //ART(wxART_GO_DIR_UP, )
95 ART(wxART_EXECUTABLE_FILE, GTK_STOCK_EXECUTE)
96 ART(wxART_NORMAL_FILE, GTK_STOCK_FILE)
97 ART(wxART_TICK_MARK, GTK_STOCK_APPLY)
98 ART(wxART_CROSS_MARK, GTK_STOCK_CANCEL)
99
100 #ifdef __WXGTK24__
101 ART(wxART_FLOPPY, GTK_STOCK_FLOPPY)
102 ART(wxART_CDROM, GTK_STOCK_CDROM)
103 ART(wxART_HARDDISK, GTK_STOCK_HARDDISK)
104 ART(wxART_REMOVABLE, GTK_STOCK_HARDDISK)
105
106 ART(wxART_FILE_SAVE, GTK_STOCK_SAVE)
107 ART(wxART_FILE_SAVE_AS, GTK_STOCK_SAVE_AS)
108
109 ART(wxART_COPY, GTK_STOCK_COPY)
110 ART(wxART_CUT, GTK_STOCK_CUT)
111 ART(wxART_PASTE, GTK_STOCK_PASTE)
112 ART(wxART_DELETE, GTK_STOCK_DELETE)
113
114 ART(wxART_UNDO, GTK_STOCK_UNDO)
115 ART(wxART_REDO, GTK_STOCK_REDO)
116
117 ART(wxART_QUIT, GTK_STOCK_QUIT)
118
119 ART(wxART_FIND, GTK_STOCK_FIND)
120 ART(wxART_FIND_AND_REPLACE, GTK_STOCK_FIND_AND_REPLACE)
121 #endif
122
123 return NULL;
124
125 #undef ART
126 }
127
128 static GtkIconSize wxArtClientToIconSize(const wxArtClient& client)
129 {
130 if (client == wxART_TOOLBAR)
131 return GTK_ICON_SIZE_LARGE_TOOLBAR;
132 else if (client == wxART_MENU)
133 return GTK_ICON_SIZE_MENU;
134 else if (client == wxART_CMN_DIALOG || client == wxART_MESSAGE_BOX)
135 return GTK_ICON_SIZE_DIALOG;
136 else if (client == wxART_BUTTON)
137 return GTK_ICON_SIZE_BUTTON;
138 else
139 return GTK_ICON_SIZE_BUTTON; // this is arbitrary
140 }
141
142 static GtkIconSize FindClosestIconSize(const wxSize& size)
143 {
144 #define NUM_SIZES 6
145 static struct
146 {
147 GtkIconSize icon;
148 gint x, y;
149 } s_sizes[NUM_SIZES];
150 static bool s_sizesInitialized = false;
151
152 if (!s_sizesInitialized)
153 {
154 s_sizes[0].icon = GTK_ICON_SIZE_MENU;
155 s_sizes[1].icon = GTK_ICON_SIZE_SMALL_TOOLBAR;
156 s_sizes[2].icon = GTK_ICON_SIZE_LARGE_TOOLBAR;
157 s_sizes[3].icon = GTK_ICON_SIZE_BUTTON;
158 s_sizes[4].icon = GTK_ICON_SIZE_DND;
159 s_sizes[5].icon = GTK_ICON_SIZE_DIALOG;
160 for (size_t i = 0; i < NUM_SIZES; i++)
161 {
162 gtk_icon_size_lookup(s_sizes[i].icon,
163 &s_sizes[i].x, &s_sizes[i].y);
164 }
165 s_sizesInitialized = true;
166 }
167
168 GtkIconSize best = GTK_ICON_SIZE_DIALOG; // presumably largest
169 unsigned distance = INT_MAX;
170 for (size_t i = 0; i < NUM_SIZES; i++)
171 {
172 // only use larger bitmaps, scaling down looks better than scaling up:
173 if (size.x > s_sizes[i].x || size.y > s_sizes[i].y)
174 continue;
175
176 unsigned dist = (size.x - s_sizes[i].x) * (size.x - s_sizes[i].x) +
177 (size.y - s_sizes[i].y) * (size.y - s_sizes[i].y);
178 if (dist == 0)
179 return s_sizes[i].icon;
180 else if (dist < distance)
181 {
182 distance = dist;
183 best = s_sizes[i].icon;
184 }
185 }
186 return best;
187 }
188
189
190 static GtkStyle *gs_gtkStyle = NULL;
191
192 static GdkPixbuf *CreateStockIcon(const char *stockid, GtkIconSize size)
193 {
194 // FIXME: This code is not 100% correct, because stock pixmap are
195 // context-dependent and may be affected by theme engine, the
196 // correct value can only be obtained for given GtkWidget object.
197 //
198 // Fool-proof implementation of stock bitmaps would extend wxBitmap
199 // with "stock-id" representation (in addition to pixmap and pixbuf
200 // ones) and would convert it to pixbuf when rendered.
201
202 if (gs_gtkStyle == NULL)
203 {
204 GtkWidget *widget = gtk_button_new();
205 gs_gtkStyle = gtk_rc_get_style(widget);
206 wxASSERT( gs_gtkStyle != NULL );
207 g_object_ref(G_OBJECT(gs_gtkStyle));
208 gtk_widget_destroy(widget);
209 }
210
211 GtkIconSet *iconset = gtk_style_lookup_icon_set(gs_gtkStyle, stockid);
212
213 if (!iconset)
214 return NULL;
215
216 return gtk_icon_set_render_icon(iconset, gs_gtkStyle,
217 gtk_widget_get_default_direction(),
218 GTK_STATE_NORMAL, size, NULL, NULL);
219 }
220
221 #ifdef __WXGTK24__
222 static GdkPixbuf *CreateThemeIcon(const char *iconname,
223 GtkIconSize iconsize, const wxSize& sz)
224 {
225 wxSize size(sz);
226 if (size == wxDefaultSize)
227 {
228 gtk_icon_size_lookup(iconsize, &size.x, &size.y);
229 }
230
231 return gtk_icon_theme_load_icon(
232 gtk_icon_theme_get_default(),
233 iconname,
234 size.x,
235 (GtkIconLookupFlags)0, NULL);
236 }
237 #endif
238
239 wxBitmap wxGTK2ArtProvider::CreateBitmap(const wxArtID& id,
240 const wxArtClient& client,
241 const wxSize& size)
242 {
243 wxCharBuffer stockid = wxArtIDToStock(id);
244 GtkIconSize stocksize = (size == wxDefaultSize) ?
245 wxArtClientToIconSize(client) :
246 FindClosestIconSize(size);
247
248 // allow passing GTK+ stock IDs to wxArtProvider:
249 if (!stockid)
250 stockid = id.ToAscii();
251
252 GdkPixbuf *pixbuf = CreateStockIcon(stockid, stocksize);
253
254 #ifdef __WXGTK24__
255 if (!gtk_check_version(2,4,0))
256 {
257 if (!pixbuf)
258 pixbuf = CreateThemeIcon(stockid, stocksize, size);
259 }
260 #endif
261
262 if (pixbuf && size != wxDefaultSize &&
263 (size.x != gdk_pixbuf_get_width(pixbuf) ||
264 size.y != gdk_pixbuf_get_height(pixbuf)))
265 {
266 GdkPixbuf *p2 = gdk_pixbuf_scale_simple(pixbuf, size.x, size.y,
267 GDK_INTERP_BILINEAR);
268 if (p2)
269 {
270 gdk_pixbuf_unref(pixbuf);
271 pixbuf = p2;
272 }
273 }
274
275 if (!pixbuf)
276 return wxNullBitmap;
277
278 wxBitmap bmp;
279 bmp.SetWidth(gdk_pixbuf_get_width(pixbuf));
280 bmp.SetHeight(gdk_pixbuf_get_height(pixbuf));
281 bmp.SetPixbuf(pixbuf);
282
283 return bmp;
284 }
285
286 // ----------------------------------------------------------------------------
287 // Cleanup
288 // ----------------------------------------------------------------------------
289
290 class wxArtGtkModule: public wxModule
291 {
292 public:
293 bool OnInit() { return true; }
294 void OnExit()
295 {
296 if (gs_gtkStyle)
297 {
298 g_object_unref(G_OBJECT(gs_gtkStyle));
299 gs_gtkStyle = NULL;
300 }
301 }
302
303 DECLARE_DYNAMIC_CLASS(wxArtGtkModule)
304 };
305
306 IMPLEMENT_DYNAMIC_CLASS(wxArtGtkModule, wxModule)
307
308 #endif // defined(__WXGTK20__) && !defined(__WXUNIVERSAL__)