Пример #1
0
// helper: return the GtkSettings either for the screen the current window is
// on or for the default screen if window is NULL
static GtkSettings *GetSettingsForWindowScreen(GdkWindow *window)
{
    return window ? gtk_settings_get_for_screen(gdk_drawable_get_screen(window))
                  : gtk_settings_get_default();
}
Пример #2
0
static void
gtku_gl_drawing_area_realize (GtkWidget * widget)
{
    GtkuGLDrawingArea * self = GTKU_GL_DRAWING_AREA (widget);
    GtkuGLDrawingAreaPrivate * priv = GTKU_GL_DRAWING_AREA_GET_PRIVATE (self);

    /* chain up */
    GTK_WIDGET_CLASS (gtku_gl_drawing_area_parent_class)->realize (widget);

    priv->dpy = GDK_WINDOW_XDISPLAY(widget->window);

#if 0
    priv->visual = glXChooseVisual (priv->dpy,
            GDK_SCREEN_XNUMBER (gdk_drawable_get_screen (GDK_DRAWABLE (widget->window))),
            //DefaultScreen (priv->dpy),
            attr_list);
#endif
    GdkDrawable * draw = GDK_DRAWABLE (widget->window);
    int screen = GDK_SCREEN_XNUMBER (gdk_drawable_get_screen (draw));
    XVisualInfo vinfo_template = {
        .visualid = XVisualIDFromVisual (gdk_x11_visual_get_xvisual (
                    gdk_drawable_get_visual (draw))),
        .screen = screen,
        .depth = gdk_drawable_get_depth (draw),
    };
    int nitems;
    fprintf (stderr, "Using X Visual 0x%x\n",
            (unsigned int) vinfo_template.visualid);
    priv->visual = XGetVisualInfo (priv->dpy,
            VisualIDMask | VisualScreenMask | VisualDepthMask,
            &vinfo_template, &nitems);
    if (priv->visual == NULL) {
        g_warning ("Failed to find GLX visual\n");
        return;
    }
    if (nitems != 1)
        fprintf (stderr, "Warning: more than one matching X visual found\n");

    priv->context = glXCreateContext (priv->dpy, priv->visual, 0,
            GL_TRUE);
    if (!priv->context) {
        g_warning ("Failed to get GLX context\n");
        XFree (priv->visual);
        priv->visual = NULL;
        return;
    }

    if (!glXMakeCurrent (priv->dpy, GDK_WINDOW_XID (widget->window),
                priv->context)) {
        g_warning ("Could not make GLX context current\n");
        return;
    }

    /* If the user doesn't want vblank sync, we are done */
    if (!self->vblank_sync)
        return;

    /* Check for the presence of the video_sync extension */
    if (!is_glx_extension_present (priv->dpy, screen, "GLX_SGI_video_sync")) {
        self->vblank_sync = 0;
        fprintf (stderr, "Video sync functions not found, disabling...\n");
        return;
    }

#ifdef USE_VBLANK
    /* Below we create a new thread to monitor the vblank.  We will
     * signal back to this thread by writing to a file descriptor
     * when each vblank occurs. */

    /* TODO: check extension list */

    GetVideoSyncSGI = (PFNGLXGETVIDEOSYNCSGIPROC) glXGetProcAddressARB (
            (unsigned char *)"glXGetVideoSyncSGI");
    WaitVideoSyncSGI = (PFNGLXWAITVIDEOSYNCSGIPROC) glXGetProcAddressARB (
            (unsigned char *)"glXWaitVideoSyncSGI");

    if (!GetVideoSyncSGI || !WaitVideoSyncSGI) {
        self->vblank_sync = 0;
        fprintf (stderr, "Video sync functions not found, disabling...\n");
        return;
    }

    unsigned int count = 0;
    if (GetVideoSyncSGI (&count) != 0) {
        self->vblank_sync = 0;
        fprintf (stderr, "Video sync counter failed, disabling...\n");
        return;
    }

    int pp = pipe (priv->pipe);
    assert (pp >= 0);

    fcntl (priv->pipe[0], F_SETFL, O_NONBLOCK);

    if (pthread_create (&priv->thread, NULL, swap_thread, priv) != 0) {
        self->vblank_sync = 0;
        fprintf (stderr, "Video sync thread creation failed, disabling...\n");
        return;
    }

    GIOChannel * chan = g_io_channel_unix_new (priv->pipe[0]);
    priv->vblank_watch = g_io_add_watch (chan, G_IO_IN, swap_func, self);
    g_io_channel_unref (chan);
#endif
}
Пример #3
0
MetaWindowMenu*
meta_window_menu_new   (MetaFrames         *frames,
                        MetaMenuOp          ops,
                        MetaMenuOp          insensitive,
                        Window              client_xwindow,
                        unsigned long       active_workspace,
                        int                 n_workspaces,
                        MetaWindowMenuFunc  func,
                        gpointer            data)
{
  int i;
  MetaWindowMenu *menu;

  /* FIXME: Modifications to 'ops' should happen in meta_window_show_menu */
  if (n_workspaces < 2)
    ops &= ~(META_MENU_OP_STICK | META_MENU_OP_UNSTICK | META_MENU_OP_WORKSPACES);
  else if (n_workspaces == 2)
    /* #151183: If we only have two workspaces, disable the menu listing them. */
    ops &= ~(META_MENU_OP_WORKSPACES);

  menu = g_new (MetaWindowMenu, 1);
  menu->frames = frames;
  menu->client_xwindow = client_xwindow;
  menu->func = func;
  menu->data = data;
  menu->ops = ops;
  menu->insensitive = insensitive;

  menu->menu = gtk_menu_new ();

  gtk_menu_set_screen (GTK_MENU (menu->menu),
                       gtk_widget_get_screen (GTK_WIDGET (frames)));

  for (i = 0; i < (int) G_N_ELEMENTS (menuitems); i++)
    {
      MenuItem menuitem = menuitems[i];
      if (ops & menuitem.op || menuitem.op == 0)
        {
          GtkWidget *mi;
          MenuData *md;
          unsigned int key;
          MetaVirtualModifier mods;

          mi = menu_item_new (&menuitem, -1);

          /* Set the activeness of radiobuttons. */
          switch (menuitem.op)
            {
            case META_MENU_OP_STICK:
              gtk_check_menu_item_set_active (GTK_CHECK_MENU_ITEM (mi),
                                              active_workspace == 0xFFFFFFFF);
              break;
            case META_MENU_OP_UNSTICK:
              gtk_check_menu_item_set_active (GTK_CHECK_MENU_ITEM (mi),
                                              active_workspace != 0xFFFFFFFF);
              break;
            default:
              break;
            }

          if (menuitem.type == MENU_ITEM_WORKSPACE_LIST)
            {
              if (ops & META_MENU_OP_WORKSPACES)
                {
                  Display *display;
                  Window xroot;
                  GdkScreen *screen;
                  GtkWidget *submenu;
                  int j;

                  MenuItem to_another_workspace = {
                    0, MENU_ITEM_NORMAL,
                    NULL, FALSE,
                    N_("Move to Another _Workspace")
                  };

                  meta_verbose ("Creating %d-workspace menu current space %lu\n",
                      n_workspaces, active_workspace);

                  display = gdk_x11_drawable_get_xdisplay (GTK_WIDGET (frames)->window);

                  screen = gdk_drawable_get_screen (GTK_WIDGET (frames)->window);
                  xroot = GDK_DRAWABLE_XID (gdk_screen_get_root_window (screen));

                  submenu = gtk_menu_new ();

                  g_assert (mi==NULL);
                  mi = menu_item_new (&to_another_workspace, -1);
                  gtk_menu_item_set_submenu (GTK_MENU_ITEM (mi), submenu);

                  for (j = 0; j < n_workspaces; j++)
                    {
                      char *label;
                      MenuData *md;
                      unsigned int key;
                      MetaVirtualModifier mods;
                      MenuItem moveitem;
                      GtkWidget *submi;

                      meta_core_get_menu_accelerator (META_MENU_OP_WORKSPACES,
                          j + 1,
                          &key, &mods);

                      label = get_workspace_name_with_accel (display, xroot, j);

                      moveitem.type = MENU_ITEM_NORMAL;
                      moveitem.op = META_MENU_OP_WORKSPACES;
                      moveitem.label = label;
                      submi = menu_item_new (&moveitem, j + 1);

                      g_free (label);

                      if ((active_workspace == (unsigned)j) && (ops & META_MENU_OP_UNSTICK))
                        gtk_widget_set_sensitive (submi, FALSE);

                      md = g_new (MenuData, 1);

                      md->menu = menu;
                      md->op = META_MENU_OP_WORKSPACES;

                      g_object_set_data (G_OBJECT (submi),
                          "workspace",
                          GINT_TO_POINTER (j));

                      gtk_signal_connect_full (GTK_OBJECT (submi),
                          "activate",
                          G_CALLBACK (activate_cb),
                          NULL,
                          md,
                          g_free, FALSE, FALSE);

                      gtk_menu_shell_append (GTK_MENU_SHELL (submenu), submi);

                      gtk_widget_show (submi);
                    }
                  }
                else
                  meta_verbose ("not creating workspace menu\n");
            }
          else if (menuitem.type != MENU_ITEM_SEPARATOR)
            {
              meta_core_get_menu_accelerator (menuitems[i].op, -1,
                                              &key, &mods);

              if (insensitive & menuitem.op)
                gtk_widget_set_sensitive (mi, FALSE);

              md = g_new (MenuData, 1);

              md->menu = menu;
              md->op = menuitem.op;

              gtk_signal_connect_full (GTK_OBJECT (mi),
                                       "activate",
                                       G_CALLBACK (activate_cb),
                                       NULL,
                                       md,
                                       g_free, FALSE, FALSE);
            }

          if (mi)
            {
              gtk_menu_shell_append (GTK_MENU_SHELL (menu->menu), mi);

              gtk_widget_show (mi);
            }
        }
    }

	g_signal_connect (menu->menu, "selection_done", G_CALLBACK(menu_closed), menu);

	return menu;
}
Пример #4
0
int wxSystemSettingsNative::GetMetric( wxSystemMetric index, wxWindow* win )
{
    guchar *data = NULL;
    Atom type;
    int format;
    gulong nitems;
    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.
                    if (wxXGetWindowProperty(window, type, format, nitems, data))
                    {
                        int border_return = -1;

                        if ((type == XA_CARDINAL) && (format == 32) && (nitems >= 4) && (data))
                        {
                            switch(index)
                            {
                                case wxSYS_BORDER_X:
                                case wxSYS_EDGE_X:
                                case wxSYS_FRAMESIZE_X:
                                    border_return = ((long*)data)[1]; // width of right extent
                                    break;
                                default:
                                    border_return = ((long*)data)[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);
            }

            // The correct thing here would be to double the value
            // since that is what the API wants. But the values
            // are much bigger under GNOME than under Windows and
            // just seem to much in many cases to be useful.
            // drag_threshold *= 2;

            return drag_threshold;

        // MBN: ditto for icons
        case wxSYS_ICON_X:     return 32;
        case wxSYS_ICON_Y:     return 32;

        case wxSYS_SCREEN_X:
#if 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 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.
            if (wxXGetWindowProperty(window, type, format, nitems, data))
            {
                int caption_height = -1;

                if ((type == XA_CARDINAL) && (format == 32) && (nitems >= 3) && (data))
                {
                    caption_height = ((long*)data)[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
    }
}
Пример #5
0
static void
on_calendar_realized(GtkWidget *widget, gpointer data)
{
    gint parent_x, parent_y, parent_w, parent_h;
    gint root_w, root_h;
    gint width, height, x, y;
    gint orientation;
    GdkScreen *screen;
    GtkWidget *parent;
    GtkRequisition requisition;

    orientation = GPOINTER_TO_INT(data);
    parent = g_object_get_data(G_OBJECT(widget), "calendar-parent");

    gdk_window_get_origin(GDK_WINDOW(parent->window), &parent_x, &parent_y);
    gdk_drawable_get_size(GDK_DRAWABLE(parent->window), &parent_w, &parent_h);

    screen = gdk_drawable_get_screen(GDK_DRAWABLE(widget->window));
    root_w = gdk_screen_get_width(GDK_SCREEN(screen));
    root_h = gdk_screen_get_height(GDK_SCREEN(screen));

    gtk_widget_size_request(GTK_WIDGET(widget), &requisition);
    width = requisition.width;
    height = requisition.height;

    /*
    g_print("parent: %dx%d +%d+%d\n", parent_w, parent_h, parent_x, parent_y);
    g_print("root: %dx%d\n", root_w, root_h);
    g_print("calendar: %dx%d\n", width, height);
    */

    if (orientation == GTK_ORIENTATION_VERTICAL) {
        if (parent_x < root_w / 2) {
            if (parent_y < root_h / 2) {
                /* upper left */
                x = parent_x + parent_w;
                y = parent_y;
            } else {
                /* lower left */
                x = parent_x + parent_w;
                y = parent_y + parent_h - height;
            }
        } else {
            if (parent_y < root_h / 2) {
                /* upper right */
                x = parent_x - width;
                y = parent_y;
            } else {
                /* lower right */
                x = parent_x - width;
                y = parent_y + parent_h - height;
            }
        }
    } else {
        if (parent_x < root_w / 2) {
            if (parent_y < root_h / 2) {
                /* upper left */
                x = parent_x;
                y = parent_y + parent_h;
            } else {
                /* lower left */
                x = parent_x;
                y = parent_y - height;
            }
        } else {
            if (parent_y < root_h / 2) {
                /* upper right */
                x = parent_x + parent_w - width;
                y = parent_y + parent_h;
            } else {
                /* lower right */
                x = parent_x + parent_w - width;
                y = parent_y - height;
            }
        }
    }

    gtk_window_move(GTK_WINDOW(widget), x, y);
}
Пример #6
0
static void
gtk_text_render_state_update (GtkTextRenderState *state,
                              GtkTextAppearance  *new_appearance)
{
  GdkScreen *screen = gtk_widget_get_screen (state->widget);
  
  if (!state->last_appearance ||
      !gdk_color_equal (&new_appearance->fg_color, &state->last_appearance->fg_color))
    gtk_text_render_state_set_color (state, state->fg_gc, &new_appearance->fg_color);

  if (!state->last_appearance ||
      new_appearance->fg_stipple != state->last_appearance->fg_stipple)
    {
      if (new_appearance->fg_stipple)
        {
	  if (screen == gdk_drawable_get_screen (new_appearance->fg_stipple))
	    {
	      gdk_gc_set_fill (state->fg_gc, GDK_STIPPLED);
	      gdk_gc_set_stipple (state->fg_gc, new_appearance->fg_stipple);
	    }
	  else
	    g_warning ("gtk_text_render_state_update:\n"
		       "The foreground stipple bitmap has been created on the wrong screen.\n"
		       "Ignoring the stipple bitmap information.");
        }
      else
        {
          gdk_gc_set_fill (state->fg_gc, GDK_SOLID);
        }
    }

  if (new_appearance->draw_bg)
    {
      if (!state->last_bg_appearance ||
          !gdk_color_equal (&new_appearance->bg_color, &state->last_bg_appearance->bg_color))
        gtk_text_render_state_set_color (state, state->bg_gc, &new_appearance->bg_color);

      if (!state->last_bg_appearance ||
          new_appearance->bg_stipple != state->last_bg_appearance->bg_stipple)
        {
          if (new_appearance->bg_stipple)
            {
	      if (screen == gdk_drawable_get_screen (new_appearance->bg_stipple))
		{
		  gdk_gc_set_fill (state->bg_gc, GDK_STIPPLED);
		  gdk_gc_set_stipple (state->bg_gc, new_appearance->bg_stipple);
		}
	      else
		g_warning ("gtk_text_render_state_update:\n"
			   "The background stipple bitmap has been created on the wrong screen.\n"
			   "Ignoring the stipple bitmap information.");

            }
          else
            {
              gdk_gc_set_fill (state->bg_gc, GDK_SOLID);
            }
        }

      state->last_bg_appearance = new_appearance;
    }

  state->last_appearance = new_appearance;
}
/* Add notification action */
void
add_notification_action(GtkWindow *nw, const char *text, const char *key,
						ActionInvokedCb cb)
{
	WindowData *windata = g_object_get_data(G_OBJECT(nw), "windata");
	GtkWidget *label;
	GtkWidget *button;
	GtkWidget *hbox;
	GdkPixbuf *pixbuf;
	char *buf;

	g_assert(windata != NULL);

	if (!GTK_WIDGET_VISIBLE(windata->actions_box))
	{
		GtkWidget *alignment;

		gtk_widget_show(windata->actions_box);

		alignment = gtk_alignment_new(1, 0.5, 0, 0);
		gtk_widget_show(alignment);
		gtk_box_pack_end(GTK_BOX(windata->actions_box), alignment,
						   FALSE, TRUE, 0);

		windata->pie_countdown = gtk_drawing_area_new();
		gtk_widget_show(windata->pie_countdown);
		gtk_container_add(GTK_CONTAINER(alignment), windata->pie_countdown);
		gtk_widget_set_size_request(windata->pie_countdown,
									PIE_WIDTH, PIE_HEIGHT);
		g_signal_connect(G_OBJECT(windata->pie_countdown), "expose_event",
						 G_CALLBACK(countdown_expose_cb), windata);
	}

	button = gtk_button_new();
	gtk_widget_show(button);
	gtk_box_pack_start(GTK_BOX(windata->actions_box), button, FALSE, FALSE, 0);

	hbox = gtk_hbox_new(FALSE, 6);
	gtk_widget_show(hbox);
	gtk_container_add(GTK_CONTAINER(button), hbox);

	/* Try to be smart and find a suitable icon. */
	buf = g_strdup_printf("stock_%s", key);
	pixbuf = gtk_icon_theme_load_icon(
		gtk_icon_theme_get_for_screen(
			gdk_drawable_get_screen(GTK_WIDGET(nw)->window)),
		buf, 16, GTK_ICON_LOOKUP_USE_BUILTIN, NULL);
	g_free(buf);

	if (pixbuf != NULL)
	{
		GtkWidget *image = gtk_image_new_from_pixbuf(pixbuf);
		gtk_widget_show(image);
		gtk_box_pack_start(GTK_BOX(hbox), image, FALSE, FALSE, 0);
		gtk_misc_set_alignment(GTK_MISC(image), 0.5, 0.5);
	}

	label = gtk_label_new(NULL);
	gtk_widget_show(label);
	gtk_box_pack_start(GTK_BOX(hbox), label, FALSE, FALSE, 0);
	gtk_misc_set_alignment(GTK_MISC(label), 0, 0.5);
	buf = g_strdup_printf("<small>%s</small>", text);
	gtk_label_set_markup(GTK_LABEL(label), buf);
	g_free(buf);

	g_object_set_data(G_OBJECT(button), "_nw", nw);
	g_object_set_data_full(G_OBJECT(button),
						   "_action_key", g_strdup(key), g_free);
	g_signal_connect(G_OBJECT(button), "button-release-event",
					 G_CALLBACK(action_clicked_cb), cb);
}
Пример #8
0
void render_text(GdkDrawable *da, GdkGC *gc, int x, int y, double angle,
    const char *s, const char *font, double xalign, double yalign,
    int xmax, int ymax)
{
	GdkScreen *screen;
	PangoRenderer *renderer;
	PangoContext *context;
	PangoLayout *layout;
	PangoFontDescription *desc;
	int width, height;
	PangoMatrix m = PANGO_MATRIX_INIT;
	double f_min, f;

	/* set up the renderer */

	screen = gdk_drawable_get_screen(da);
	renderer = gdk_pango_renderer_get_default(screen);
	gdk_pango_renderer_set_drawable(GDK_PANGO_RENDERER(renderer), da);
	gdk_pango_renderer_set_gc(GDK_PANGO_RENDERER(renderer), gc);

	/* start preparing the layout */

	context = gdk_pango_context_get_for_screen(screen);
	layout = pango_layout_new(context);
	pango_layout_set_text(layout, s, -1);

	/* apply the font */

	desc = pango_font_description_from_string(font);
	pango_layout_set_font_description(layout, desc);
	pango_font_description_free(desc);

	/* align and position the text */

	pango_layout_get_size(layout, &width, &height);
	f_min = 1.0;
	if (xmax) {
		f = xmax/((double) width/PANGO_SCALE);
		if (f < f_min)
			f_min = f;
	}
	if (ymax) {
		f = ymax/((double) height/PANGO_SCALE);
		if (f < f_min)
			f_min = f;
	}
	if (f_min < MIN_FONT_SCALE)
		f_min = MIN_FONT_SCALE;
	pango_matrix_translate(&m, x, y);
	pango_matrix_rotate(&m, angle);
	pango_matrix_translate(&m,
	    -xalign*f_min*width/PANGO_SCALE,
	    (yalign-1)*f_min*height/PANGO_SCALE);
	pango_matrix_scale(&m, f_min, f_min);

	pango_context_set_matrix(context, &m);
	pango_layout_context_changed(layout);
	pango_renderer_draw_layout(renderer, layout, 0, 0);

	/* clean up renderer */

	gdk_pango_renderer_set_drawable(GDK_PANGO_RENDERER(renderer), NULL);
	gdk_pango_renderer_set_gc(GDK_PANGO_RENDERER(renderer), NULL);

	/* free objects */

	g_object_unref(layout);
	g_object_unref(context);
}
Пример #9
0
static VALUE
rg_screen(VALUE self)
{
    return GOBJ2RVAL(gdk_drawable_get_screen(_SELF(self)));
}
static void
thunar_icon_renderer_render (GtkCellRenderer     *renderer,
                             GdkWindow           *window,
                             GtkWidget           *widget,
                             GdkRectangle        *background_area,
                             GdkRectangle        *cell_area,
                             GdkRectangle        *expose_area,
                             GtkCellRendererState flags)
{
  ThunarClipboardManager *clipboard;
  ThunarFileIconState     icon_state;
  ThunarIconRenderer     *icon_renderer = THUNAR_ICON_RENDERER (renderer);
  ThunarIconFactory      *icon_factory;
  GtkIconSource          *icon_source;
  GtkIconTheme           *icon_theme;
  GdkRectangle            emblem_area;
  GdkRectangle            icon_area;
  GdkRectangle            draw_area;
  GtkStateType            state;
  GdkPixbuf              *emblem;
  GdkPixbuf              *icon;
  GdkPixbuf              *temp;
  GList                  *emblems;
  GList                  *lp;
  gint                    max_emblems;
  gint                    position;

  if (G_UNLIKELY (icon_renderer->file == NULL))
    return;

  /* determine the icon state */
  icon_state = (icon_renderer->drop_file != icon_renderer->file)
             ? renderer->is_expanded
              ? THUNAR_FILE_ICON_STATE_OPEN
              : THUNAR_FILE_ICON_STATE_DEFAULT
             : THUNAR_FILE_ICON_STATE_DROP;

  /* load the main icon */
  icon_theme = gtk_icon_theme_get_for_screen (gdk_drawable_get_screen (window));
  icon_factory = thunar_icon_factory_get_for_icon_theme (icon_theme);
  icon = thunar_icon_factory_load_file_icon (icon_factory, icon_renderer->file, icon_state, icon_renderer->size);
  if (G_UNLIKELY (icon == NULL))
    {
      g_object_unref (G_OBJECT (icon_factory));
      return;
    }

  /* pre-light the item if we're dragging about it */
  if (G_UNLIKELY (icon_state == THUNAR_FILE_ICON_STATE_DROP))
    flags |= GTK_CELL_RENDERER_PRELIT;

  /* determine the real icon size */
  icon_area.width = gdk_pixbuf_get_width (icon);
  icon_area.height = gdk_pixbuf_get_height (icon);

  /* scale down the icon on-demand */
  if (G_UNLIKELY (icon_area.width > cell_area->width || icon_area.height > cell_area->height))
    {
      /* scale down to fit */
      temp = exo_gdk_pixbuf_scale_down (icon, TRUE, cell_area->width, cell_area->height);
      g_object_unref (G_OBJECT (icon));
      icon = temp;

      /* determine the icon dimensions again */
      icon_area.width = gdk_pixbuf_get_width (icon);
      icon_area.height = gdk_pixbuf_get_height (icon);
    }

  icon_area.x = cell_area->x + (cell_area->width - icon_area.width) / 2;
  icon_area.y = cell_area->y + (cell_area->height - icon_area.height) / 2;

  /* check whether the icon is affected by the expose event */
  if (gdk_rectangle_intersect (expose_area, &icon_area, &draw_area))
    {
      /* use a translucent icon to represent cutted and hidden files to the user */
      clipboard = thunar_clipboard_manager_get_for_display (gtk_widget_get_display (widget));
      if (thunar_clipboard_manager_has_cutted_file (clipboard, icon_renderer->file))
        {
          /* 50% translucent for cutted files */
          temp = exo_gdk_pixbuf_lucent (icon, 50);
          g_object_unref (G_OBJECT (icon));
          icon = temp;
        }
      else if (thunar_file_is_hidden (icon_renderer->file))
        {
          /* 75% translucent for hidden files */
          temp = exo_gdk_pixbuf_lucent (icon, 75);
          g_object_unref (G_OBJECT (icon));
          icon = temp;
        }
      g_object_unref (G_OBJECT (clipboard));

      /* colorize the icon if we should follow the selection state */
      if ((flags & (GTK_CELL_RENDERER_SELECTED | GTK_CELL_RENDERER_PRELIT)) != 0 && icon_renderer->follow_state)
        {
          if ((flags & GTK_CELL_RENDERER_SELECTED) != 0)
            {
              state = GTK_WIDGET_HAS_FOCUS (widget) ? GTK_STATE_SELECTED : GTK_STATE_ACTIVE;
              temp = exo_gdk_pixbuf_colorize (icon, &widget->style->base[state]);
              g_object_unref (G_OBJECT (icon));
              icon = temp;
            }

          if ((flags & GTK_CELL_RENDERER_PRELIT) != 0)
            {
              temp = exo_gdk_pixbuf_spotlight (icon);
              g_object_unref (G_OBJECT (icon));
              icon = temp;
            }
        }

      /* check if we should render an insensitive icon */
      if (G_UNLIKELY (GTK_WIDGET_STATE (widget) == GTK_STATE_INSENSITIVE || !renderer->sensitive))
        {
          /* allocate an icon source */
          icon_source = gtk_icon_source_new ();
          gtk_icon_source_set_pixbuf (icon_source, icon);
          gtk_icon_source_set_size_wildcarded (icon_source, FALSE);
          gtk_icon_source_set_size (icon_source, GTK_ICON_SIZE_SMALL_TOOLBAR);

          /* render the insensitive icon */
          temp = gtk_style_render_icon (widget->style, icon_source, gtk_widget_get_direction (widget),
                                        GTK_STATE_INSENSITIVE, -1, widget, "gtkcellrendererpixbuf");
          g_object_unref (G_OBJECT (icon));
          icon = temp;

          /* release the icon source */
          gtk_icon_source_free (icon_source);
        }

      /* render the invalid parts of the icon */
      gdk_draw_pixbuf (window, widget->style->black_gc, icon,
                       draw_area.x - icon_area.x, draw_area.y - icon_area.y,
                       draw_area.x, draw_area.y, draw_area.width, draw_area.height,
                       GDK_RGB_DITHER_NORMAL, 0, 0);
    }

  /* release the file's icon */
  g_object_unref (G_OBJECT (icon));

  /* check if we should render emblems as well */
  if (G_LIKELY (icon_renderer->emblems))
    {
      /* display the primary emblem as well (if any) */
      emblems = thunar_file_get_emblem_names (icon_renderer->file);
      if (G_UNLIKELY (emblems != NULL))
        {
          /* render up to four emblems for sizes from 48 onwards, else up to 2 emblems */
          max_emblems = (icon_renderer->size < 48) ? 2 : 4;

          /* render the emblems */
          for (lp = emblems, position = 0; lp != NULL && position < max_emblems; lp = lp->next)
            {
              /* check if we have the emblem in the icon theme */
              emblem = thunar_icon_factory_load_icon (icon_factory, lp->data, icon_renderer->size, NULL, FALSE);
              if (G_UNLIKELY (emblem == NULL))
                continue;

              /* determine the dimensions of the emblem */
              emblem_area.width = gdk_pixbuf_get_width (emblem);
              emblem_area.height = gdk_pixbuf_get_height (emblem);

              /* shrink insane emblems */
              if (G_UNLIKELY (MAX (emblem_area.width, emblem_area.height) > (gint) MIN ((2 * icon_renderer->size) / 3, 36)))
                {
                  /* scale down the emblem */
                  temp = exo_gdk_pixbuf_scale_ratio (emblem, MIN ((2 * icon_renderer->size) / 3, 36));
                  g_object_unref (G_OBJECT (emblem));
                  emblem = temp;

                  /* determine the size again */
                  emblem_area.width = gdk_pixbuf_get_width (emblem);
                  emblem_area.height = gdk_pixbuf_get_height (emblem);
                }

              /* determine a good position for the emblem, depending on the position index */
              switch (position)
                {
                case 0: /* right/bottom */
                  emblem_area.x = MIN (icon_area.x + icon_area.width - emblem_area.width / 2,
                                       cell_area->x + cell_area->width - emblem_area.width);
                  emblem_area.y = MIN (icon_area.y + icon_area.height - emblem_area.height / 2,
                                       cell_area->y + cell_area->height -emblem_area.height);
                  break;

                case 1: /* left/bottom */
                  emblem_area.x = MAX (icon_area.x - emblem_area.width / 2,
                                       cell_area->x);
                  emblem_area.y = MIN (icon_area.y + icon_area.height - emblem_area.height / 2,
                                       cell_area->y + cell_area->height -emblem_area.height);
                  break;

                case 2: /* left/top */
                  emblem_area.x = MAX (icon_area.x - emblem_area.width / 2,
                                       cell_area->x);
                  emblem_area.y = MAX (icon_area.y - emblem_area.height / 2,
                                       cell_area->y);
                  break;

                case 3: /* right/top */
                  emblem_area.x = MIN (icon_area.x + icon_area.width - emblem_area.width / 2,
                                       cell_area->x + cell_area->width - emblem_area.width);
                  emblem_area.y = MAX (icon_area.y - emblem_area.height / 2,
                                       cell_area->y);
                  break;

                default:
                  _thunar_assert_not_reached ();
                }

              /* render the emblem */
              if (gdk_rectangle_intersect (expose_area, &emblem_area, &draw_area))
                {
                  gdk_draw_pixbuf (window, widget->style->black_gc, emblem,
                                   draw_area.x - emblem_area.x, draw_area.y - emblem_area.y,
                                   draw_area.x, draw_area.y, draw_area.width, draw_area.height,
                                   GDK_RGB_DITHER_NORMAL, 0, 0);
                }

              /* release the emblem */
              g_object_unref (G_OBJECT (emblem));

              /* advance the position index */
              ++position;
            }

          /* release the emblem name list */
          g_list_free (emblems);
        }
    }

  /* release our reference on the icon factory */
  g_object_unref (G_OBJECT (icon_factory));
}
Пример #11
0
int wxSystemSettingsNative::GetMetric( wxSystemMetric index, wxWindow* win )
{
    GdkWindow *window = NULL;
    if (win)
        window = gtk_widget_get_window(win->GetHandle());

    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 (win)
            {
                wxTopLevelWindow *tlw = wxDynamicCast(win, wxTopLevelWindow);
                if (!tlw)
                    return GetBorderWidth(index, win);
                else if (window)
                {
                    // 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.
                    int right, bottom;
                    if (wxGetFrameExtents(window, NULL, &right, NULL, &bottom))
                    {
                        switch (index)
                        {
                            case wxSYS_BORDER_X:
                            case wxSYS_EDGE_X:
                            case wxSYS_FRAMESIZE_X:
                                return right; // width of right extent
                            default:
                                return bottom; // height of bottom extent
                        }
                    }
                }
            }

            return -1; // no window specified

        case wxSYS_CURSOR_X:
        case wxSYS_CURSOR_Y:
                return gdk_display_get_default_cursor_size(
                            window ? gdk_drawable_get_display(window)
                                   : gdk_display_get_default());

        case wxSYS_DCLICK_X:
        case wxSYS_DCLICK_Y:
            gint dclick_distance;
            g_object_get(GetSettingsForWindowScreen(window),
                            "gtk-double-click-distance", &dclick_distance, NULL);

            return dclick_distance * 2;

        case wxSYS_DCLICK_MSEC:
            gint dclick;
            g_object_get(GetSettingsForWindowScreen(window),
                            "gtk-double-click-time", &dclick, NULL);
            return dclick;

        case wxSYS_DRAG_X:
        case wxSYS_DRAG_Y:
            gint drag_threshold;
            g_object_get(GetSettingsForWindowScreen(window),
                            "gtk-dnd-drag-threshold", &drag_threshold, NULL);

            // The correct thing here would be to double the value
            // since that is what the API wants. But the values
            // are much bigger under GNOME than under Windows and
            // just seem to much in many cases to be useful.
            // drag_threshold *= 2;

            return drag_threshold;

        case wxSYS_ICON_X:
        case wxSYS_ICON_Y:
            return 32;

        case wxSYS_SCREEN_X:
            if (window)
                return gdk_screen_get_width(gdk_drawable_get_screen(window));
            else
                return gdk_screen_width();

        case wxSYS_SCREEN_Y:
            if (window)
                return gdk_screen_get_height(gdk_drawable_get_screen(window));
            else
                return gdk_screen_height();

        case wxSYS_HSCROLL_Y:
        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;

            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.
            {
                int top;
                if (wxGetFrameExtents(window, NULL, NULL, &top, NULL))
                {
                    return top; // top frame extent
                }
            }

            // 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
    }
}
Пример #12
0
gboolean
gdk_gl_window_make_context_current (GdkGLDrawable *draw, GdkGLContext *glcontext)
{
  GdkGLDrawable *read = draw;
  GdkGLConfig *glconfig;
  Window glxwindow;
  GLXContext glxcontext;

  g_return_val_if_fail (GDK_IS_GL_WINDOW (draw), FALSE);
  g_return_val_if_fail (GDK_IS_GL_CONTEXT_IMPL_X11 (glcontext), FALSE);

  glconfig = GDK_GL_WINDOW (draw)->glconfig;
  glxwindow = GDK_GL_WINDOW (draw)->glxwindow;
  glxcontext = GDK_GL_CONTEXT_GLXCONTEXT (glcontext);

  if (glxwindow == None || glxcontext == NULL)
    return FALSE;

  GDK_GL_NOTE (MISC, g_message (" -- Window: screen number = %d", GDK_SCREEN_XNUMBER (gdk_drawable_get_screen (GDK_DRAWABLE (draw)))));
  GDK_GL_NOTE (MISC, g_message (" -- Window: visual id = 0x%lx", GDK_VISUAL_XVISUAL (gdk_drawable_get_visual (GDK_DRAWABLE (draw)))->visualid));

  GDK_GL_NOTE_FUNC_IMPL ("glXMakeCurrent");

  if (!glXMakeCurrent (GDK_GL_CONFIG_XDISPLAY (glconfig), glxwindow, glxcontext))
    {
      g_warning ("glXMakeCurrent() failed");
      _gdk_gl_context_set_gl_drawable (glcontext, NULL);
      return FALSE;
    }

  _gdk_gl_context_set_gl_drawable (glcontext, draw);

  if (_GDK_GL_CONFIG_AS_SINGLE_MODE (glconfig))
    {
      /* We do this because we are treating a double-buffered frame
         buffer as a single-buffered frame buffer because the system
         does not appear to export any suitable single-buffered
         visuals (in which the following are necessary). */
      glDrawBuffer (GL_FRONT);
      glReadBuffer (GL_FRONT);
    }

  GDK_GL_NOTE (MISC, _gdk_gl_print_gl_info ());

  return TRUE;
}