+ bool success = false;
+
+ guchar *data = NULL;
+ GdkWindow *window = NULL;
+ if(win && GTK_WIDGET_REALIZED(win->GetHandle()))
+ window = win->GetHandle()->window;
+
+ switch (index)
+ {
+ case wxSYS_BORDER_X:
+ case wxSYS_BORDER_Y:
+ case wxSYS_EDGE_X:
+ case wxSYS_EDGE_Y:
+ case wxSYS_FRAMESIZE_X:
+ case wxSYS_FRAMESIZE_Y:
+ // If a window is specified/realized, and it is a toplevel window, we can query from wm.
+ // The returned border thickness is outside the client area in that case.
+ if (window)
+ {
+ wxTopLevelWindow *tlw = wxDynamicCast(win, wxTopLevelWindow);
+ if (!tlw)
+ return -1; // not a tlw, not sure how to approach
+ else
+ {
+ // Check if wm supports frame extents - we can't know
+ // the border widths if it does not.
+#if GTK_CHECK_VERSION(2,2,0)
+ if (!gtk_check_version(2,2,0))
+ {
+ if (!gdk_x11_screen_supports_net_wm_hint(
+ gdk_drawable_get_screen(window),
+ gdk_atom_intern("_NET_FRAME_EXTENTS", false) ) )
+ return -1;
+ }
+ else
+#endif
+ {
+ if (!gdk_net_wm_supports(gdk_atom_intern("_NET_FRAME_EXTENTS", false)))
+ return -1;
+ }
+
+ // Get the frame extents from the windowmanager.
+ // In most cases the top extent is the titlebar, so we use the bottom extent
+ // for the heights.
+
+ Atom type;
+ gint format;
+ gulong nitems;
+
+#if GTK_CHECK_VERSION(2,2,0)
+ if (!gtk_check_version(2,2,0))
+ {
+ gulong bytes_after;
+ success = (XGetWindowProperty (GDK_DISPLAY_XDISPLAY(gdk_drawable_get_display(window)),
+ GDK_WINDOW_XWINDOW(window),
+ gdk_x11_get_xatom_by_name_for_display (
+ gdk_drawable_get_display(window),
+ "_NET_FRAME_EXTENTS" ),
+ 0, // left, right, top, bottom, CARDINAL[4]/32
+ G_MAXLONG, // size of long
+ false, // do not delete property
+ XA_CARDINAL, // 32 bit
+ &type, &format, &nitems, &bytes_after, &data
+ ) == Success);
+ }
+#endif
+ if (success)
+ {
+ int border_return = -1;
+
+ if ((type == XA_CARDINAL) && (format == 32) && (nitems >= 4) && (data))
+ {
+ long *borders;
+ borders = (long*)data;
+ switch(index)
+ {
+ case wxSYS_BORDER_X:
+ case wxSYS_EDGE_X:
+ case wxSYS_FRAMESIZE_X:
+ border_return = borders[1]; // width of right extent
+ break;
+ default:
+ border_return = borders[3]; // height of bottom extent
+ break;
+ }
+ }
+
+ if (data)
+ XFree(data);
+
+ return border_return;
+ }
+ }
+ }
+
+ return -1; // no window specified
+
+ case wxSYS_CURSOR_X:
+ case wxSYS_CURSOR_Y:
+#ifdef __WXGTK24__
+ if (!gtk_check_version(2,4,0))
+ {
+ if (window)
+ return gdk_display_get_default_cursor_size(gdk_drawable_get_display(window));
+ else
+ return gdk_display_get_default_cursor_size(gdk_display_get_default());
+ }
+ else
+#endif
+ return 16;
+
+ case wxSYS_DCLICK_X:
+ case wxSYS_DCLICK_Y:
+ gint dclick_distance;
+#if GTK_CHECK_VERSION(2,2,0)
+ if (window && !gtk_check_version(2,2,0))
+ g_object_get(gtk_settings_get_for_screen(gdk_drawable_get_screen(window)),
+ "gtk-double-click-distance", &dclick_distance, NULL);
+ else
+#endif
+ g_object_get(gtk_settings_get_default(),
+ "gtk-double-click-distance", &dclick_distance, NULL);
+
+ return dclick_distance * 2;
+
+ case wxSYS_DRAG_X:
+ case wxSYS_DRAG_Y:
+ gint drag_threshold;
+#if GTK_CHECK_VERSION(2,2,0)
+ if (window && !gtk_check_version(2,2,0))
+ {
+ g_object_get(
+ gtk_settings_get_for_screen(gdk_drawable_get_screen(window)),
+ "gtk-dnd-drag-threshold",
+ &drag_threshold, NULL);
+ }
+ else
+#endif
+ {
+ g_object_get(gtk_settings_get_default(),
+ "gtk-dnd-drag-threshold", &drag_threshold, NULL);
+ }
+
+ return drag_threshold * 2;
+
+ // MBN: ditto for icons
+ case wxSYS_ICON_X: return 32;
+ case wxSYS_ICON_Y: return 32;
+
+ case wxSYS_SCREEN_X:
+#if defined(__WXGTK20__) && GTK_CHECK_VERSION(2,2,0)
+ if (window && !gtk_check_version(2,2,0))
+ return gdk_screen_get_width(gdk_drawable_get_screen(window));
+ else
+#endif
+ return gdk_screen_width();
+
+ case wxSYS_SCREEN_Y:
+#if defined(__WXGTK20__) && GTK_CHECK_VERSION(2,2,0)
+ if (window && !gtk_check_version(2,2,0))
+ return gdk_screen_get_height(gdk_drawable_get_screen(window));
+ else
+#endif
+ return gdk_screen_height();
+
+ case wxSYS_HSCROLL_Y: return 15;
+ case wxSYS_VSCROLL_X: return 15;
+
+ case wxSYS_CAPTION_Y:
+ if (!window)
+ // No realized window specified, and no implementation for that case yet.
+ return -1;
+
+ // Check if wm supports frame extents - we can't know the caption height if it does not.
+#if GTK_CHECK_VERSION(2,2,0)
+ if (!gtk_check_version(2,2,0))
+ {
+ if (!gdk_x11_screen_supports_net_wm_hint(
+ gdk_drawable_get_screen(window),
+ gdk_atom_intern("_NET_FRAME_EXTENTS", false) ) )
+ return -1;
+ }
+ else
+#endif
+ {
+ if (!gdk_net_wm_supports(gdk_atom_intern("_NET_FRAME_EXTENTS", false)))
+ return -1;
+ }
+
+ wxASSERT_MSG( wxDynamicCast(win, wxTopLevelWindow),
+ wxT("Asking for caption height of a non toplevel window") );
+
+ // Get the height of the top windowmanager border.
+ // This is the titlebar in most cases. The titlebar might be elsewhere, and
+ // we could check which is the thickest wm border to decide on which side the
+ // titlebar is, but this might lead to interesting behaviours in used code.
+ // Reconsider when we have a way to report to the user on which side it is.
+
+ Atom type;
+ gint format;
+ gulong nitems;
+
+#if GTK_CHECK_VERSION(2,2,0)
+ if (!gtk_check_version(2,2,0))
+ {
+ gulong bytes_after;
+ success = (XGetWindowProperty (GDK_DISPLAY_XDISPLAY(gdk_drawable_get_display(window)),
+ GDK_WINDOW_XWINDOW(window),
+ gdk_x11_get_xatom_by_name_for_display (
+ gdk_drawable_get_display(window),
+ "_NET_FRAME_EXTENTS" ),
+ 0, // left, right, top, bottom, CARDINAL[4]/32
+ G_MAXLONG, // size of long
+ false, // do not delete property
+ XA_CARDINAL, // 32 bit
+ &type, &format, &nitems, &bytes_after, &data
+ ) == Success);
+ }
+#endif
+ if (success)
+ {
+ int caption_height = -1;
+
+ if ((type == XA_CARDINAL) && (format == 32) && (nitems >= 3) && (data))
+ {
+ long *borders;
+ borders = (long*)data;
+ caption_height = borders[2]; // top frame extent
+ }
+
+ if (data)
+ XFree(data);
+
+ return caption_height;
+ }
+
+ // Try a default approach without a window pointer, if possible
+ // ...
+
+ return -1;
+
+ case wxSYS_PENWINDOWS_PRESENT:
+ // No MS Windows for Pen computing extension available in X11 based gtk+.
+ return 0;
+
+ default:
+ return -1; // metric is unknown
+ }
projects / wxWidgets.git / blobdiff