| 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 | #include "gdk/gdk.h" |
| 18 | #include "gtk/gtk.h" |
| 19 | |
| 20 | //----------------------------------------------------------------------------- |
| 21 | // global data initialization |
| 22 | //----------------------------------------------------------------------------- |
| 23 | |
| 24 | GdkWindow *wxScreenDC::sm_overlayWindow = (GdkWindow*) NULL; |
| 25 | int wxScreenDC::sm_overlayWindowX = 0; |
| 26 | int wxScreenDC::sm_overlayWindowY = 0; |
| 27 | |
| 28 | |
| 29 | //----------------------------------------------------------------------------- |
| 30 | // create X window |
| 31 | //----------------------------------------------------------------------------- |
| 32 | |
| 33 | extern "C" { |
| 34 | |
| 35 | #include "gdk/gdk.h" |
| 36 | #include "gdk/gdkprivate.h" |
| 37 | #include "gdk/gdkx.h" |
| 38 | #include <netinet/in.h> |
| 39 | |
| 40 | int my_nevent_masks = 17; |
| 41 | int my_event_masks_table[19] = |
| 42 | { |
| 43 | ExposureMask, |
| 44 | PointerMotionMask, |
| 45 | PointerMotionHintMask, |
| 46 | ButtonMotionMask, |
| 47 | Button1MotionMask, |
| 48 | Button2MotionMask, |
| 49 | Button3MotionMask, |
| 50 | ButtonPressMask | OwnerGrabButtonMask, |
| 51 | ButtonReleaseMask | OwnerGrabButtonMask, |
| 52 | KeyPressMask, |
| 53 | KeyReleaseMask, |
| 54 | EnterWindowMask, |
| 55 | LeaveWindowMask, |
| 56 | FocusChangeMask, |
| 57 | StructureNotifyMask, |
| 58 | PropertyChangeMask, |
| 59 | VisibilityChangeMask, |
| 60 | 0, /* PROXIMITY_IN */ |
| 61 | 0 /* PROXIMTY_OUT */ |
| 62 | }; |
| 63 | |
| 64 | GdkWindow* |
| 65 | gdk_window_transparent_new ( GdkWindow *parent, |
| 66 | GdkWindowAttr *attributes, |
| 67 | gint attributes_mask) |
| 68 | { |
| 69 | GdkWindow *window; |
| 70 | GdkWindowPrivate *gprivate; |
| 71 | GdkWindowPrivate *parent_private; |
| 72 | GdkVisual *visual; |
| 73 | Display *parent_display; |
| 74 | Window xparent; |
| 75 | Visual *xvisual; |
| 76 | XSetWindowAttributes xattributes; |
| 77 | long xattributes_mask; |
| 78 | XSizeHints size_hints; |
| 79 | XWMHints wm_hints; |
| 80 | XClassHint *class_hint; |
| 81 | int x, y, depth; |
| 82 | unsigned int gclass; |
| 83 | char *title; |
| 84 | int i; |
| 85 | |
| 86 | g_return_val_if_fail (attributes != NULL, NULL); |
| 87 | |
| 88 | if (!parent) |
| 89 | parent = (GdkWindow*) &gdk_root_parent; |
| 90 | |
| 91 | parent_private = (GdkWindowPrivate*) parent; |
| 92 | if (parent_private->destroyed) |
| 93 | return NULL; |
| 94 | |
| 95 | xparent = parent_private->xwindow; |
| 96 | parent_display = parent_private->xdisplay; |
| 97 | |
| 98 | gprivate = g_new (GdkWindowPrivate, 1); |
| 99 | window = (GdkWindow*) gprivate; |
| 100 | |
| 101 | gprivate->parent = parent; |
| 102 | |
| 103 | if (parent_private != &gdk_root_parent) |
| 104 | parent_private->children = g_list_prepend (parent_private->children, window); |
| 105 | |
| 106 | gprivate->xdisplay = parent_display; |
| 107 | gprivate->destroyed = FALSE; |
| 108 | gprivate->resize_count = 0; |
| 109 | gprivate->ref_count = 1; |
| 110 | xattributes_mask = 0; |
| 111 | |
| 112 | if (attributes_mask & GDK_WA_X) |
| 113 | x = attributes->x; |
| 114 | else |
| 115 | x = 0; |
| 116 | |
| 117 | if (attributes_mask & GDK_WA_Y) |
| 118 | y = attributes->y; |
| 119 | else |
| 120 | y = 0; |
| 121 | |
| 122 | gprivate->x = x; |
| 123 | gprivate->y = y; |
| 124 | gprivate->width = (attributes->width > 1) ? (attributes->width) : (1); |
| 125 | gprivate->height = (attributes->height > 1) ? (attributes->height) : (1); |
| 126 | gprivate->window_type = attributes->window_type; |
| 127 | gprivate->extension_events = FALSE; |
| 128 | |
| 129 | #ifndef NEW_GTK_DND_CODE |
| 130 | gprivate->dnd_drag_data_type = None; |
| 131 | gprivate->dnd_drag_data_typesavail = |
| 132 | gprivate->dnd_drop_data_typesavail = NULL; |
| 133 | gprivate->dnd_drop_enabled = gprivate->dnd_drag_enabled = |
| 134 | gprivate->dnd_drag_accepted = gprivate->dnd_drag_datashow = |
| 135 | gprivate->dnd_drop_data_numtypesavail = |
| 136 | gprivate->dnd_drag_data_numtypesavail = 0; |
| 137 | gprivate->dnd_drag_eventmask = gprivate->dnd_drag_savedeventmask = 0; |
| 138 | #endif |
| 139 | |
| 140 | gprivate->filters = NULL; |
| 141 | gprivate->children = NULL; |
| 142 | |
| 143 | window->user_data = NULL; |
| 144 | |
| 145 | if (attributes_mask & GDK_WA_VISUAL) |
| 146 | visual = attributes->visual; |
| 147 | else |
| 148 | visual = gdk_visual_get_system (); |
| 149 | xvisual = ((GdkVisualPrivate*) visual)->xvisual; |
| 150 | |
| 151 | xattributes.event_mask = StructureNotifyMask; |
| 152 | for (i = 0; i < my_nevent_masks; i++) |
| 153 | { |
| 154 | if (attributes->event_mask & (1 << (i + 1))) |
| 155 | xattributes.event_mask |= my_event_masks_table[i]; |
| 156 | } |
| 157 | |
| 158 | if (xattributes.event_mask) |
| 159 | xattributes_mask |= CWEventMask; |
| 160 | |
| 161 | if(attributes_mask & GDK_WA_NOREDIR) { |
| 162 | xattributes.override_redirect = |
| 163 | (attributes->override_redirect == FALSE)?False:True; |
| 164 | xattributes_mask |= CWOverrideRedirect; |
| 165 | } else |
| 166 | xattributes.override_redirect = False; |
| 167 | |
| 168 | gclass = InputOutput; |
| 169 | depth = visual->depth; |
| 170 | |
| 171 | if (attributes_mask & GDK_WA_COLORMAP) |
| 172 | gprivate->colormap = attributes->colormap; |
| 173 | else |
| 174 | gprivate->colormap = gdk_colormap_get_system (); |
| 175 | |
| 176 | xattributes.colormap = ((GdkColormapPrivate*) gprivate->colormap)->xcolormap; |
| 177 | xattributes_mask |= CWColormap; |
| 178 | |
| 179 | xparent = gdk_root_window; |
| 180 | |
| 181 | xattributes.save_under = True; |
| 182 | xattributes.override_redirect = True; |
| 183 | xattributes.cursor = None; |
| 184 | xattributes_mask |= CWSaveUnder | CWOverrideRedirect; |
| 185 | |
| 186 | gprivate->xwindow = XCreateWindow (gprivate->xdisplay, xparent, |
| 187 | x, y, gprivate->width, gprivate->height, |
| 188 | 0, depth, gclass, xvisual, |
| 189 | xattributes_mask, &xattributes); |
| 190 | gdk_window_ref (window); |
| 191 | gdk_xid_table_insert (&gprivate->xwindow, window); |
| 192 | |
| 193 | if (gprivate->colormap) |
| 194 | gdk_colormap_ref (gprivate->colormap); |
| 195 | |
| 196 | XSetWMProtocols (gprivate->xdisplay, gprivate->xwindow, gdk_wm_window_protocols, 2); |
| 197 | |
| 198 | size_hints.flags = PSize; |
| 199 | size_hints.width = gprivate->width; |
| 200 | size_hints.height = gprivate->height; |
| 201 | |
| 202 | wm_hints.flags = InputHint | StateHint | WindowGroupHint; |
| 203 | wm_hints.window_group = gdk_leader_window; |
| 204 | wm_hints.input = True; |
| 205 | wm_hints.initial_state = NormalState; |
| 206 | |
| 207 | /* FIXME: Is there any point in doing this? Do any WM's pay |
| 208 | * attention to PSize, and even if they do, is this the |
| 209 | * correct value??? |
| 210 | */ |
| 211 | XSetWMNormalHints (gprivate->xdisplay, gprivate->xwindow, &size_hints); |
| 212 | |
| 213 | XSetWMHints (gprivate->xdisplay, gprivate->xwindow, &wm_hints); |
| 214 | |
| 215 | if (attributes_mask & GDK_WA_TITLE) |
| 216 | title = attributes->title; |
| 217 | else |
| 218 | #if (GTK_MINOR_VERSION == 1) |
| 219 | title = "Unknown"; // GLH: Well I don't know for the moment what to write here. |
| 220 | #else |
| 221 | title = gdk_progname; |
| 222 | #endif |
| 223 | |
| 224 | XmbSetWMProperties (gprivate->xdisplay, gprivate->xwindow, |
| 225 | title, title, |
| 226 | NULL, 0, |
| 227 | NULL, NULL, NULL); |
| 228 | |
| 229 | if (attributes_mask & GDK_WA_WMCLASS) |
| 230 | { |
| 231 | class_hint = XAllocClassHint (); |
| 232 | class_hint->res_name = attributes->wmclass_name; |
| 233 | class_hint->res_class = attributes->wmclass_class; |
| 234 | XSetClassHint (gprivate->xdisplay, gprivate->xwindow, class_hint); |
| 235 | XFree (class_hint); |
| 236 | } |
| 237 | |
| 238 | return window; |
| 239 | } |
| 240 | |
| 241 | } // extern "C" |
| 242 | |
| 243 | //----------------------------------------------------------------------------- |
| 244 | // wxScreenDC |
| 245 | //----------------------------------------------------------------------------- |
| 246 | |
| 247 | IMPLEMENT_DYNAMIC_CLASS(wxScreenDC,wxPaintDC) |
| 248 | |
| 249 | wxScreenDC::wxScreenDC(void) |
| 250 | { |
| 251 | m_ok = FALSE; |
| 252 | m_window = (GdkWindow *) NULL; |
| 253 | m_cmap = gdk_colormap_get_system(); |
| 254 | |
| 255 | if (sm_overlayWindow) |
| 256 | { |
| 257 | m_window = sm_overlayWindow; |
| 258 | m_deviceOriginX = - sm_overlayWindowX; |
| 259 | m_deviceOriginY = - sm_overlayWindowY; |
| 260 | } |
| 261 | else |
| 262 | { |
| 263 | m_window = GDK_ROOT_PARENT(); |
| 264 | } |
| 265 | |
| 266 | SetUpDC(); |
| 267 | |
| 268 | gdk_gc_set_subwindow( m_penGC, GDK_INCLUDE_INFERIORS ); |
| 269 | gdk_gc_set_subwindow( m_brushGC, GDK_INCLUDE_INFERIORS ); |
| 270 | gdk_gc_set_subwindow( m_textGC, GDK_INCLUDE_INFERIORS ); |
| 271 | gdk_gc_set_subwindow( m_bgGC, GDK_INCLUDE_INFERIORS ); |
| 272 | } |
| 273 | |
| 274 | wxScreenDC::~wxScreenDC(void) |
| 275 | { |
| 276 | EndDrawingOnTop(); |
| 277 | } |
| 278 | |
| 279 | bool wxScreenDC::StartDrawingOnTop( wxWindow *window ) |
| 280 | { |
| 281 | if (!window) return StartDrawingOnTop(); |
| 282 | |
| 283 | int x = 0; |
| 284 | int y = 0; |
| 285 | window->GetPosition( &x, &y ); |
| 286 | int w = 0; |
| 287 | int h = 0; |
| 288 | window->GetSize( &w, &h ); |
| 289 | window->ClientToScreen( &x, &y ); |
| 290 | |
| 291 | wxRect rect; |
| 292 | rect.x = x; |
| 293 | rect.y = y; |
| 294 | rect.width = 0; |
| 295 | rect.height = 0; |
| 296 | |
| 297 | return StartDrawingOnTop( &rect ); |
| 298 | } |
| 299 | |
| 300 | bool wxScreenDC::StartDrawingOnTop( wxRect *rect ) |
| 301 | { |
| 302 | int x = 0; |
| 303 | int y = 0; |
| 304 | int width = gdk_screen_width(); |
| 305 | int height = gdk_screen_height(); |
| 306 | if (rect) |
| 307 | { |
| 308 | x = rect->x; |
| 309 | y = rect->y; |
| 310 | width = rect->width; |
| 311 | height = rect->height; |
| 312 | } |
| 313 | |
| 314 | sm_overlayWindowX = x; |
| 315 | sm_overlayWindowY = y; |
| 316 | |
| 317 | GdkWindowAttr attr; |
| 318 | attr.x = x; |
| 319 | attr.y = y; |
| 320 | attr.width = width; |
| 321 | attr.height = height; |
| 322 | attr.override_redirect = TRUE; |
| 323 | attr.wclass = GDK_INPUT_OUTPUT; |
| 324 | attr.event_mask = 0; |
| 325 | attr.window_type = GDK_WINDOW_TEMP; |
| 326 | |
| 327 | // GTK cannot set transparent backgrounds. :-( |
| 328 | sm_overlayWindow = gdk_window_transparent_new( NULL, &attr, GDK_WA_NOREDIR | GDK_WA_X | GDK_WA_Y ); |
| 329 | |
| 330 | if (sm_overlayWindow) gdk_window_show( sm_overlayWindow ); |
| 331 | |
| 332 | return (sm_overlayWindow); |
| 333 | } |
| 334 | |
| 335 | bool wxScreenDC::EndDrawingOnTop(void) |
| 336 | { |
| 337 | if (sm_overlayWindow) gdk_window_destroy( sm_overlayWindow ); |
| 338 | |
| 339 | sm_overlayWindow = NULL; |
| 340 | sm_overlayWindowX = 0; |
| 341 | sm_overlayWindowY = 0; |
| 342 | |
| 343 | return TRUE; |
| 344 | } |
| 345 | |