ev-utils.h File Reference

#include <gdk-pixbuf/gdk-pixbuf.h>
#include <gtk/gtk.h>

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Functions
G_BEGIN_DECLS GdkPixbuf *	ev_pixbuf_add_shadow (GdkPixbuf *src, int size, int x_offset, int y_offset, double opacity)
void	ev_print_region_contents (cairo_region_t *region)
void	ev_gui_menu_position_tree_selection (GtkMenu *menu, gint *x, gint *y, gboolean *push_in, gpointer user_data)
void	file_chooser_dialog_add_writable_pixbuf_formats (GtkFileChooser *chooser)
GdkPixbufFormat *	get_gdk_pixbuf_format_by_extension (const gchar *uri)

Function Documentation

void ev_gui_menu_position_tree_selection	(	GtkMenu *	menu,
		gint *	x,
		gint *	y,
		gboolean *	push_in,
		gpointer	user_data
	)

Definition at line 239 of file ev-utils.c.

{
    GtkTreeSelection *selection;
    GList *selected_rows;
    GtkTreeModel *model;
    GtkTreeView *tree_view = GTK_TREE_VIEW (user_data);
    GtkWidget *widget = GTK_WIDGET (user_data);
    GtkRequisition req;
    GtkAllocation allocation;
    GdkRectangle visible;

    gtk_widget_get_preferred_size (GTK_WIDGET (menu), &req, NULL);
    gdk_window_get_origin (gtk_widget_get_window (widget), x, y);
    gtk_widget_get_allocation (widget, &allocation);

    *x += (allocation.width - req.width) / 2;

    /* Add on height for the treeview title */
    gtk_tree_view_get_visible_rect (tree_view, &visible);
    *y += allocation.height - visible.height;

    selection = gtk_tree_view_get_selection (tree_view);
    selected_rows = gtk_tree_selection_get_selected_rows (selection, &model);
    if (selected_rows)
    {
        GdkRectangle cell_rect;

        gtk_tree_view_get_cell_area (tree_view, selected_rows->data,
                         NULL, &cell_rect);

        *y += CLAMP (cell_rect.y + cell_rect.height, 0, visible.height);

        g_list_foreach (selected_rows, (GFunc)gtk_tree_path_free, NULL);
        g_list_free (selected_rows);
    }

    ev_gui_sanitise_popup_position (menu, widget, x, y);
}

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G_BEGIN_DECLS GdkPixbuf* ev_pixbuf_add_shadow	(	GdkPixbuf *	src,
		int	size,
		int	x_offset,
		int	y_offset,
		double	opacity
	)

Definition at line 167 of file ev-utils.c.

{
  GdkPixbuf *dest;
  
  dest = create_shadow (src, size, x_offset, y_offset, opacity);

  gdk_pixbuf_composite (src, dest,
            size, size,
            gdk_pixbuf_get_width (src),
            gdk_pixbuf_get_height (src),
            size, size,
            1.0, 1.0,
            GDK_INTERP_NEAREST, 255);

  return dest;
}

void ev_print_region_contents

(

cairo_region_t *

region)

Definition at line 190 of file ev-utils.c.

{
    gint n_rectangles, i;

    if (region == NULL) {
        g_print ("<empty region>\n");
        return;
    }

    g_print ("<region %p>\n", region);
    n_rectangles = cairo_region_num_rectangles (region);
    for (i = 0; i < n_rectangles; i++) {
        GdkRectangle rect;

        cairo_region_get_rectangle (region, i, &rect);
        g_print ("\t(%d %d, %d %d) [%dx%d]\n",
             rect.x,
             rect.y,
             rect.x + rect.width,
             rect.y + rect.height,
             rect.width,
             rect.height);
    }
}

void file_chooser_dialog_add_writable_pixbuf_formats

(

GtkFileChooser *

chooser)

Definition at line 298 of file ev-utils.c.

{
    GSList *pixbuf_formats = NULL;
    GSList *iter;
    GtkFileFilter *filter, *supported_filter;

    supported_filter = gtk_file_filter_new ();
    gtk_file_filter_set_name (supported_filter, _("Supported Image Files"));
    gtk_file_chooser_add_filter (chooser, supported_filter);

    filter = gtk_file_filter_new ();
    gtk_file_filter_set_name (filter, _("All Files"));
    gtk_file_filter_add_pattern (filter, "*");
    gtk_file_chooser_add_filter (chooser, filter);

    pixbuf_formats = gdk_pixbuf_get_formats ();

    for (iter = pixbuf_formats; iter; iter = iter->next) {
        GdkPixbufFormat *format = iter->data;
        gchar *name;

        if (gdk_pixbuf_format_is_disabled (format) ||
            !gdk_pixbuf_format_is_writable (format))
            continue;

        filter = gtk_file_filter_new ();
        name = gdk_pixbuf_format_get_description (format);
        gtk_file_filter_set_name (filter, name);

        file_filter_add_mime_types (format, filter, supported_filter);
        g_object_set_data (G_OBJECT(filter), "pixbuf-format", format);
        gtk_file_chooser_add_filter (chooser, filter);
    }

    g_slist_free (pixbuf_formats);
}

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GdkPixbufFormat* get_gdk_pixbuf_format_by_extension

(

const gchar *

uri)

Definition at line 336 of file ev-utils.c.

{
    GSList *pixbuf_formats = NULL;
    GSList *iter;
    int i;

    pixbuf_formats = gdk_pixbuf_get_formats ();

    for (iter = pixbuf_formats; iter; iter = iter->next) {
        gchar **extension_list;
        GdkPixbufFormat *format = iter->data;
        
        if (gdk_pixbuf_format_is_disabled (format) ||
                !gdk_pixbuf_format_is_writable (format))
                    continue;

            extension_list = gdk_pixbuf_format_get_extensions (format);

        for (i = 0; extension_list[i] != 0; i++) {
            if (g_str_has_suffix (uri, extension_list[i])) {
                    g_slist_free (pixbuf_formats);
                g_strfreev (extension_list);
                return format;
            }
        }
        g_strfreev (extension_list);
    }

    g_slist_free (pixbuf_formats);
    return NULL;
}

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