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1 | ///////////////////////////////////////////////////////////////////////////// | |
2 | // Name: dcscreen.cpp | |
3 | // Purpose: | |
4 | // Author: Robert Roebling | |
5 | // Id: $Id$ | |
6 | // Copyright: (c) 1998 Robert Roebling | |
7 | // Licence: wxWindows licence | |
8 | ///////////////////////////////////////////////////////////////////////////// | |
9 | ||
10 | #ifdef __GNUG__ | |
11 | #pragma implementation "dcscreen.h" | |
12 | #endif | |
13 | ||
14 | #include "wx/dcscreen.h" | |
15 | #include "wx/window.h" | |
16 | ||
17 | //----------------------------------------------------------------------------- | |
18 | // global data initialization | |
19 | //----------------------------------------------------------------------------- | |
20 | ||
21 | GdkWindow *wxScreenDC::sm_overlayWindow = (GdkWindow*) NULL; | |
22 | int wxScreenDC::sm_overlayWindowX = 0; | |
23 | int wxScreenDC::sm_overlayWindowY = 0; | |
24 | ||
25 | ||
26 | //----------------------------------------------------------------------------- | |
27 | // create X window | |
28 | //----------------------------------------------------------------------------- | |
29 | ||
30 | extern "C" { | |
31 | ||
32 | #include "gdk/gdk.h" | |
33 | #include "gdk/gdkprivate.h" | |
34 | #include "gdk/gdkx.h" | |
35 | #include <netinet/in.h> | |
36 | ||
37 | int nevent_masks = 17; | |
38 | int event_mask_table[19] = | |
39 | { | |
40 | ExposureMask, | |
41 | PointerMotionMask, | |
42 | PointerMotionHintMask, | |
43 | ButtonMotionMask, | |
44 | Button1MotionMask, | |
45 | Button2MotionMask, | |
46 | Button3MotionMask, | |
47 | ButtonPressMask | OwnerGrabButtonMask, | |
48 | ButtonReleaseMask | OwnerGrabButtonMask, | |
49 | KeyPressMask, | |
50 | KeyReleaseMask, | |
51 | EnterWindowMask, | |
52 | LeaveWindowMask, | |
53 | FocusChangeMask, | |
54 | StructureNotifyMask, | |
55 | PropertyChangeMask, | |
56 | VisibilityChangeMask, | |
57 | 0, /* PROXIMITY_IN */ | |
58 | 0 /* PROXIMTY_OUT */ | |
59 | }; | |
60 | ||
61 | GdkWindow* | |
62 | gdk_window_transparent_new ( GdkWindow *parent, | |
63 | GdkWindowAttr *attributes, | |
64 | gint attributes_mask) | |
65 | { | |
66 | GdkWindow *window; | |
67 | GdkWindowPrivate *gprivate; | |
68 | GdkWindowPrivate *parent_private; | |
69 | GdkVisual *visual; | |
70 | Display *parent_display; | |
71 | Window xparent; | |
72 | Visual *xvisual; | |
73 | XSetWindowAttributes xattributes; | |
74 | long xattributes_mask; | |
75 | XSizeHints size_hints; | |
76 | XWMHints wm_hints; | |
77 | XClassHint *class_hint; | |
78 | int x, y, depth; | |
79 | unsigned int gclass; | |
80 | char *title; | |
81 | int i; | |
82 | ||
83 | g_return_val_if_fail (attributes != NULL, NULL); | |
84 | ||
85 | if (!parent) | |
86 | parent = (GdkWindow*) &gdk_root_parent; | |
87 | ||
88 | parent_private = (GdkWindowPrivate*) parent; | |
89 | if (parent_private->destroyed) | |
90 | return NULL; | |
91 | ||
92 | xparent = parent_private->xwindow; | |
93 | parent_display = parent_private->xdisplay; | |
94 | ||
95 | gprivate = g_new (GdkWindowPrivate, 1); | |
96 | window = (GdkWindow*) gprivate; | |
97 | ||
98 | gprivate->parent = parent; | |
99 | ||
100 | if (parent_private != &gdk_root_parent) | |
101 | parent_private->children = g_list_prepend (parent_private->children, window); | |
102 | ||
103 | gprivate->xdisplay = parent_display; | |
104 | gprivate->destroyed = FALSE; | |
105 | gprivate->resize_count = 0; | |
106 | gprivate->ref_count = 1; | |
107 | xattributes_mask = 0; | |
108 | ||
109 | if (attributes_mask & GDK_WA_X) | |
110 | x = attributes->x; | |
111 | else | |
112 | x = 0; | |
113 | ||
114 | if (attributes_mask & GDK_WA_Y) | |
115 | y = attributes->y; | |
116 | else | |
117 | y = 0; | |
118 | ||
119 | gprivate->x = x; | |
120 | gprivate->y = y; | |
121 | gprivate->width = (attributes->width > 1) ? (attributes->width) : (1); | |
122 | gprivate->height = (attributes->height > 1) ? (attributes->height) : (1); | |
123 | gprivate->window_type = attributes->window_type; | |
124 | gprivate->extension_events = FALSE; | |
125 | gprivate->dnd_drag_data_type = None; | |
126 | gprivate->dnd_drag_data_typesavail = | |
127 | gprivate->dnd_drop_data_typesavail = NULL; | |
128 | gprivate->dnd_drop_enabled = gprivate->dnd_drag_enabled = | |
129 | gprivate->dnd_drag_accepted = gprivate->dnd_drag_datashow = | |
130 | gprivate->dnd_drop_data_numtypesavail = | |
131 | gprivate->dnd_drag_data_numtypesavail = 0; | |
132 | gprivate->dnd_drag_eventmask = gprivate->dnd_drag_savedeventmask = 0; | |
133 | ||
134 | gprivate->filters = NULL; | |
135 | gprivate->children = NULL; | |
136 | ||
137 | window->user_data = NULL; | |
138 | ||
139 | if (attributes_mask & GDK_WA_VISUAL) | |
140 | visual = attributes->visual; | |
141 | else | |
142 | visual = gdk_visual_get_system (); | |
143 | xvisual = ((GdkVisualPrivate*) visual)->xvisual; | |
144 | ||
145 | xattributes.event_mask = StructureNotifyMask; | |
146 | for (i = 0; i < nevent_masks; i++) | |
147 | { | |
148 | if (attributes->event_mask & (1 << (i + 1))) | |
149 | xattributes.event_mask |= event_mask_table[i]; | |
150 | } | |
151 | ||
152 | if (xattributes.event_mask) | |
153 | xattributes_mask |= CWEventMask; | |
154 | ||
155 | if(attributes_mask & GDK_WA_NOREDIR) { | |
156 | xattributes.override_redirect = | |
157 | (attributes->override_redirect == FALSE)?False:True; | |
158 | xattributes_mask |= CWOverrideRedirect; | |
159 | } else | |
160 | xattributes.override_redirect = False; | |
161 | ||
162 | gclass = InputOutput; | |
163 | depth = visual->depth; | |
164 | ||
165 | if (attributes_mask & GDK_WA_COLORMAP) | |
166 | gprivate->colormap = attributes->colormap; | |
167 | else | |
168 | gprivate->colormap = gdk_colormap_get_system (); | |
169 | ||
170 | xattributes.colormap = ((GdkColormapPrivate*) gprivate->colormap)->xcolormap; | |
171 | xattributes_mask |= CWColormap; | |
172 | ||
173 | xparent = gdk_root_window; | |
174 | ||
175 | xattributes.save_under = True; | |
176 | xattributes.override_redirect = True; | |
177 | xattributes.cursor = None; | |
178 | xattributes_mask |= CWSaveUnder | CWOverrideRedirect; | |
179 | ||
180 | gprivate->xwindow = XCreateWindow (gprivate->xdisplay, xparent, | |
181 | x, y, gprivate->width, gprivate->height, | |
182 | 0, depth, gclass, xvisual, | |
183 | xattributes_mask, &xattributes); | |
184 | gdk_window_ref (window); | |
185 | gdk_xid_table_insert (&gprivate->xwindow, window); | |
186 | ||
187 | if (gprivate->colormap) | |
188 | gdk_colormap_ref (gprivate->colormap); | |
189 | ||
190 | XSetWMProtocols (gprivate->xdisplay, gprivate->xwindow, gdk_wm_window_protocols, 2); | |
191 | ||
192 | size_hints.flags = PSize; | |
193 | size_hints.width = gprivate->width; | |
194 | size_hints.height = gprivate->height; | |
195 | ||
196 | wm_hints.flags = InputHint | StateHint | WindowGroupHint; | |
197 | wm_hints.window_group = gdk_leader_window; | |
198 | wm_hints.input = True; | |
199 | wm_hints.initial_state = NormalState; | |
200 | ||
201 | /* FIXME: Is there any point in doing this? Do any WM's pay | |
202 | * attention to PSize, and even if they do, is this the | |
203 | * correct value??? | |
204 | */ | |
205 | XSetWMNormalHints (gprivate->xdisplay, gprivate->xwindow, &size_hints); | |
206 | ||
207 | XSetWMHints (gprivate->xdisplay, gprivate->xwindow, &wm_hints); | |
208 | ||
209 | if (attributes_mask & GDK_WA_TITLE) | |
210 | title = attributes->title; | |
211 | else | |
212 | title = gdk_progname; | |
213 | ||
214 | XmbSetWMProperties (gprivate->xdisplay, gprivate->xwindow, | |
215 | title, title, | |
216 | NULL, 0, | |
217 | NULL, NULL, NULL); | |
218 | ||
219 | if (attributes_mask & GDK_WA_WMCLASS) | |
220 | { | |
221 | class_hint = XAllocClassHint (); | |
222 | class_hint->res_name = attributes->wmclass_name; | |
223 | class_hint->res_class = attributes->wmclass_class; | |
224 | XSetClassHint (gprivate->xdisplay, gprivate->xwindow, class_hint); | |
225 | XFree (class_hint); | |
226 | } | |
227 | ||
228 | return window; | |
229 | } | |
230 | ||
231 | } // extern "C" | |
232 | ||
233 | //----------------------------------------------------------------------------- | |
234 | // wxScreenDC | |
235 | //----------------------------------------------------------------------------- | |
236 | ||
237 | IMPLEMENT_DYNAMIC_CLASS(wxScreenDC,wxPaintDC) | |
238 | ||
239 | wxScreenDC::wxScreenDC(void) | |
240 | { | |
241 | m_ok = FALSE; | |
242 | m_window = (GdkWindow *) NULL; | |
243 | m_cmap = gdk_colormap_get_system(); | |
244 | ||
245 | if (sm_overlayWindow) | |
246 | { | |
247 | m_window = sm_overlayWindow; | |
248 | m_deviceOriginX = - sm_overlayWindowX; | |
249 | m_deviceOriginY = - sm_overlayWindowY; | |
250 | } | |
251 | else | |
252 | m_window = GDK_ROOT_PARENT(); | |
253 | ||
254 | SetUpDC(); | |
255 | ||
256 | gdk_gc_set_subwindow( m_penGC, GDK_INCLUDE_INFERIORS ); | |
257 | gdk_gc_set_subwindow( m_brushGC, GDK_INCLUDE_INFERIORS ); | |
258 | gdk_gc_set_subwindow( m_textGC, GDK_INCLUDE_INFERIORS ); | |
259 | gdk_gc_set_subwindow( m_bgGC, GDK_INCLUDE_INFERIORS ); | |
260 | } | |
261 | ||
262 | wxScreenDC::~wxScreenDC(void) | |
263 | { | |
264 | EndDrawingOnTop(); | |
265 | } | |
266 | ||
267 | bool wxScreenDC::StartDrawingOnTop( wxWindow *window ) | |
268 | { | |
269 | if (!window) return StartDrawingOnTop(); | |
270 | ||
271 | int x = 0; | |
272 | int y = 0; | |
273 | window->GetPosition( &x, &y ); | |
274 | int w = 0; | |
275 | int h = 0; | |
276 | window->GetSize( &w, &h ); | |
277 | window->ClientToScreen( &x, &y ); | |
278 | ||
279 | wxRectangle rect; | |
280 | rect.x = x; | |
281 | rect.y = y; | |
282 | rect.width = 0; | |
283 | rect.height = 0; | |
284 | ||
285 | return StartDrawingOnTop( &rect ); | |
286 | } | |
287 | ||
288 | bool wxScreenDC::StartDrawingOnTop( wxRectangle *rect ) | |
289 | { | |
290 | int x = 0; | |
291 | int y = 0; | |
292 | int width = gdk_screen_width(); | |
293 | int height = gdk_screen_height(); | |
294 | if (rect) | |
295 | { | |
296 | x = rect->x; | |
297 | y = rect->y; | |
298 | width = rect->width; | |
299 | height = rect->height; | |
300 | } | |
301 | ||
302 | sm_overlayWindowX = x; | |
303 | sm_overlayWindowY = y; | |
304 | ||
305 | GdkWindowAttr attr; | |
306 | attr.x = x; | |
307 | attr.y = y; | |
308 | attr.width = width; | |
309 | attr.height = height; | |
310 | attr.override_redirect = TRUE; | |
311 | attr.wclass = GDK_INPUT_OUTPUT; | |
312 | attr.event_mask = 0; | |
313 | attr.window_type = GDK_WINDOW_TEMP; | |
314 | ||
315 | // GTK cannot set transparent backgrounds. :-( | |
316 | sm_overlayWindow = gdk_window_transparent_new( NULL, &attr, GDK_WA_NOREDIR | GDK_WA_X | GDK_WA_Y ); | |
317 | ||
318 | if (sm_overlayWindow) gdk_window_show( sm_overlayWindow ); | |
319 | ||
320 | return (sm_overlayWindow); | |
321 | } | |
322 | ||
323 | bool wxScreenDC::EndDrawingOnTop(void) | |
324 | { | |
325 | if (sm_overlayWindow) gdk_window_destroy( sm_overlayWindow ); | |
326 | ||
327 | sm_overlayWindow = NULL; | |
328 | sm_overlayWindowX = 0; | |
329 | sm_overlayWindowY = 0; | |
330 | ||
331 | return TRUE; | |
332 | } | |
333 |