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/* eel-gtk-extensions.c - implementation of new functions that operate on
* gtk classes. Perhaps some of these should be
* rolled into gtk someday.
*
* Copyright (C) 1999, 2000, 2001 Eazel, Inc.
*
* The Gnome Library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public License as
* published by the Free Software Foundation, Inc.,; either version 2 of the
* License, or (at your option) any later version.
*
* The Gnome Library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public
* License along with the Gnome Library; see the file COPYING.LIB. If not,
* write to the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor
* Boston, MA 02110-1335 USA.
*
* Authors: John Sullivan <sullivan@eazel.com>
* Ramiro Estrugo <ramiro@eazel.com>
* Darin Adler <darin@eazel.com>
*/
#include <glib.h>
#include "eel-gtk-extensions.h"
#include <gdk/gdk.h>
/* Used for window position & size sanity-checking. The sizes are big enough to prevent
* at least normal-sized gnome panels from obscuring the window at the screen edges.
*/
#define MINIMUM_ON_SCREEN_WIDTH 100
#define MINIMUM_ON_SCREEN_HEIGHT 100
/**
* eel_gtk_window_get_geometry_string:
* @window: a #GtkWindow
*
* Obtains the geometry string for this window, suitable for
* set_geometry_string(); assumes the window has NorthWest gravity
*
* Return value: geometry string, must be freed
**/
char*
eel_gtk_window_get_geometry_string (GtkWindow *window)
{
char *str;
int w, h, x, y;
g_return_val_if_fail (GTK_IS_WINDOW (window), NULL);
g_return_val_if_fail (gtk_window_get_gravity (window) ==
GDK_GRAVITY_NORTH_WEST, NULL);
gtk_window_get_position (window, &x, &y);
gtk_window_get_size (window, &w, &h);
str = g_strdup_printf ("%dx%d+%d+%d", w, h, x, y);
return str;
}
static void
sanity_check_window_position (int *left, int *top)
{
g_assert (left != NULL);
g_assert (top != NULL);
/* Make sure the top of the window is on screen, for
* draggability (might not be necessary with all window managers,
* but seems reasonable anyway). Make sure the top of the window
* isn't off the bottom of the screen, or so close to the bottom
* that it might be obscured by the panel.
*/
*top = CLAMP (*top, 0, gdk_screen_height() - MINIMUM_ON_SCREEN_HEIGHT);
/* FIXME bugzilla.eazel.com 669:
* If window has negative left coordinate, set_uposition sends it
* somewhere else entirely. Not sure what level contains this bug (XWindows?).
* Hacked around by pinning the left edge to zero, which just means you
* can't set a window to be partly off the left of the screen using
* this routine.
*/
/* Make sure the left edge of the window isn't off the right edge of
* the screen, or so close to the right edge that it might be
* obscured by the panel.
*/
*left = CLAMP (*left, 0, gdk_screen_width() - MINIMUM_ON_SCREEN_WIDTH);
}
static void
sanity_check_window_dimensions (guint *width, guint *height)
{
g_assert (width != NULL);
g_assert (height != NULL);
/* Pin the size of the window to the screen, so we don't end up in
* a state where the window is so big essential parts of it can't
* be reached (might not be necessary with all window managers,
* but seems reasonable anyway).
*/
*width = MIN (*width, gdk_screen_width());
*height = MIN (*height, gdk_screen_height());
}
GtkMenuItem *
eel_gtk_menu_insert_separator (GtkMenu *menu, int index)
{
GtkWidget *menu_item;
menu_item = gtk_separator_menu_item_new ();
gtk_widget_show (menu_item);
gtk_menu_shell_insert (GTK_MENU_SHELL (menu), menu_item, index);
return GTK_MENU_ITEM (menu_item);
}
GtkMenuItem *
eel_gtk_menu_append_separator (GtkMenu *menu)
{
return eel_gtk_menu_insert_separator (menu, -1);
}
/**
* eel_pop_up_context_menu:
*
* Pop up a context menu under the mouse.
* The menu is sunk after use, so it will be destroyed unless the
* caller first ref'ed it.
*
* This function is more of a helper function than a gtk extension,
* so perhaps it belongs in a different file.
*
* @menu: The menu to pop up under the mouse.
* @offset_x: Number of pixels to displace the popup menu vertically
* @offset_y: Number of pixels to displace the popup menu horizontally
* @event: The event that invoked this popup menu.
**/
void
eel_pop_up_context_menu (GtkMenu *menu,
gint16 offset_x,
gint16 offset_y,
GdkEventButton *event)
{
GdkPoint offset;
int button;
g_return_if_fail (GTK_IS_MENU (menu));
offset.x = offset_x;
offset.y = offset_y;
/* The event button needs to be 0 if we're popping up this menu from
* a button release, else a 2nd click outside the menu with any button
* other than the one that invoked the menu will be ignored (instead
* of dismissing the menu). This is a subtle fragility of the GTK menu code.
*/
if (event) {
button = event->type == GDK_BUTTON_RELEASE
? 0
: event->button;
} else {
button = 0;
}
gtk_menu_popup (menu, /* menu */
NULL, /* parent_menu_shell */
NULL, /* parent_menu_item */
NULL,
&offset, /* data */
button, /* button */
event ? event->time : GDK_CURRENT_TIME); /* activate_time */
g_object_ref_sink (menu);
g_object_unref (menu);
}
/**
* eel_gtk_widget_set_shown
*
* Show or hide a widget.
* @widget: The widget.
* @shown: Boolean value indicating whether the widget should be shown or hidden.
**/
void
eel_gtk_widget_set_shown (GtkWidget *widget, gboolean shown)
{
g_return_if_fail (GTK_IS_WIDGET (widget));
if (shown) {
gtk_widget_show (widget);
} else {
gtk_widget_hide (widget);
}
}
static gboolean
tree_view_button_press_callback (GtkWidget *tree_view,
GdkEventButton *event,
gpointer data)
{
GtkTreePath *path;
GtkTreeViewColumn *column;
if (event->button == 1 && event->type == GDK_BUTTON_PRESS) {
if (gtk_tree_view_get_path_at_pos (GTK_TREE_VIEW (tree_view),
event->x, event->y,
&path,
&column,
NULL,
NULL)) {
gtk_tree_view_row_activated
(GTK_TREE_VIEW (tree_view), path, column);
}
}
return FALSE;
}
void
eel_gtk_tree_view_set_activate_on_single_click (GtkTreeView *tree_view,
gboolean should_activate)
{
guint button_press_id;
button_press_id = GPOINTER_TO_UINT
(g_object_get_data (G_OBJECT (tree_view),
"eel-tree-view-activate"));
if (button_press_id && !should_activate) {
g_signal_handler_disconnect (tree_view, button_press_id);
g_object_set_data (G_OBJECT (tree_view),
"eel-tree-view-activate",
NULL);
} else if (!button_press_id && should_activate) {
button_press_id = g_signal_connect
(tree_view,
"button_press_event",
G_CALLBACK (tree_view_button_press_callback),
NULL);
g_object_set_data (G_OBJECT (tree_view),
"eel-tree-view-activate",
GUINT_TO_POINTER (button_press_id));
}
}
GdkScreen *
eel_gtk_widget_get_screen (GtkWidget *widget)
{
GdkScreen *screen = NULL;
if (G_UNLIKELY (widget == NULL))
screen = gdk_screen_get_default ();
else if (GTK_IS_WIDGET (widget))
screen = gtk_widget_get_screen (widget);
return screen;
}
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