xed/gedit/gedit-statusbar.c

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2011-11-07 13:46:58 -06:00
/*
* gedit-statusbar.c
* This file is part of gedit
*
* Copyright (C) 2005 - Paolo Borelli
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program 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 General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330,
* Boston, MA 02111-1307, USA.
*/
/*
* Modified by the gedit Team, 2005. See the AUTHORS file for a
* list of people on the gedit Team.
* See the ChangeLog files for a list of changes.
*
* $Id$
*/
#ifdef HAVE_CONFIG_H
#include <config.h>
#endif
#include <string.h>
#include <glib/gi18n.h>
#include <gtk/gtk.h>
#include "gedit-statusbar.h"
#define GEDIT_STATUSBAR_GET_PRIVATE(object)(G_TYPE_INSTANCE_GET_PRIVATE ((object),\
GEDIT_TYPE_STATUSBAR,\
GeditStatusbarPrivate))
struct _GeditStatusbarPrivate
{
GtkWidget *overwrite_mode_statusbar;
GtkWidget *cursor_position_statusbar;
GtkWidget *state_frame;
GtkWidget *load_image;
GtkWidget *save_image;
GtkWidget *print_image;
GtkWidget *error_frame;
GtkWidget *error_event_box;
/* tmp flash timeout data */
guint flash_timeout;
guint flash_context_id;
guint flash_message_id;
};
G_DEFINE_TYPE(GeditStatusbar, gedit_statusbar, GTK_TYPE_STATUSBAR)
static gchar *
get_overwrite_mode_string (gboolean overwrite)
{
return g_strconcat (" ", overwrite ? _("OVR") : _("INS"), NULL);
}
static gint
get_overwrite_mode_length (void)
{
return 2 + MAX (g_utf8_strlen (_("OVR"), -1), g_utf8_strlen (_("INS"), -1));
}
static void
gedit_statusbar_notify (GObject *object,
GParamSpec *pspec)
{
/* don't allow gtk_statusbar_set_has_resize_grip to mess with us.
* See _gedit_statusbar_set_has_resize_grip for an explanation.
*/
if (strcmp (g_param_spec_get_name (pspec), "has-resize-grip") == 0)
{
gtk_statusbar_set_has_resize_grip (GTK_STATUSBAR (object), FALSE);
return;
}
if (G_OBJECT_CLASS (gedit_statusbar_parent_class)->notify)
G_OBJECT_CLASS (gedit_statusbar_parent_class)->notify (object, pspec);
}
static void
gedit_statusbar_finalize (GObject *object)
{
GeditStatusbar *statusbar = GEDIT_STATUSBAR (object);
if (statusbar->priv->flash_timeout > 0)
g_source_remove (statusbar->priv->flash_timeout);
G_OBJECT_CLASS (gedit_statusbar_parent_class)->finalize (object);
}
static void
gedit_statusbar_class_init (GeditStatusbarClass *klass)
{
GObjectClass *object_class = G_OBJECT_CLASS (klass);
object_class->notify = gedit_statusbar_notify;
object_class->finalize = gedit_statusbar_finalize;
g_type_class_add_private (object_class, sizeof (GeditStatusbarPrivate));
}
#define RESIZE_GRIP_EXTRA_WIDTH 30
static void
set_statusbar_width_chars (GtkWidget *statusbar,
gint n_chars,
gboolean has_resize_grip)
{
PangoContext *context;
PangoFontMetrics *metrics;
gint char_width, digit_width, width;
GtkStyle *style;
context = gtk_widget_get_pango_context (statusbar);
style = gtk_widget_get_style (GTK_WIDGET (statusbar));
metrics = pango_context_get_metrics (context,
style->font_desc,
pango_context_get_language (context));
char_width = pango_font_metrics_get_approximate_digit_width (metrics);
digit_width = pango_font_metrics_get_approximate_char_width (metrics);
width = PANGO_PIXELS (MAX (char_width, digit_width) * n_chars);
pango_font_metrics_unref (metrics);
/* If there is a resize grip, allocate some extra width.
* It would be nice to calculate the exact size programmatically
* but I could not find out how to do it */
if (has_resize_grip)
width += RESIZE_GRIP_EXTRA_WIDTH;
gtk_widget_set_size_request (statusbar, width, -1);
}
static void
gedit_statusbar_init (GeditStatusbar *statusbar)
{
GtkWidget *hbox;
GtkWidget *error_image;
statusbar->priv = GEDIT_STATUSBAR_GET_PRIVATE (statusbar);
gtk_statusbar_set_has_resize_grip (GTK_STATUSBAR (statusbar), FALSE);
statusbar->priv->overwrite_mode_statusbar = gtk_statusbar_new ();
gtk_widget_show (statusbar->priv->overwrite_mode_statusbar);
gtk_statusbar_set_has_resize_grip (GTK_STATUSBAR (statusbar->priv->overwrite_mode_statusbar),
TRUE);
set_statusbar_width_chars (statusbar->priv->overwrite_mode_statusbar,
get_overwrite_mode_length (),
TRUE);
gtk_box_pack_end (GTK_BOX (statusbar),
statusbar->priv->overwrite_mode_statusbar,
FALSE, TRUE, 0);
statusbar->priv->cursor_position_statusbar = gtk_statusbar_new ();
gtk_widget_show (statusbar->priv->cursor_position_statusbar);
gtk_statusbar_set_has_resize_grip (GTK_STATUSBAR (statusbar->priv->cursor_position_statusbar),
FALSE);
set_statusbar_width_chars (statusbar->priv->cursor_position_statusbar, 18, FALSE);
gtk_box_pack_end (GTK_BOX (statusbar),
statusbar->priv->cursor_position_statusbar,
FALSE, TRUE, 0);
statusbar->priv->state_frame = gtk_frame_new (NULL);
gtk_frame_set_shadow_type (GTK_FRAME (statusbar->priv->state_frame), GTK_SHADOW_IN);
hbox = gtk_hbox_new (FALSE, 0);
gtk_container_add (GTK_CONTAINER (statusbar->priv->state_frame), hbox);
statusbar->priv->load_image = gtk_image_new_from_stock (GTK_STOCK_OPEN, GTK_ICON_SIZE_MENU);
statusbar->priv->save_image = gtk_image_new_from_stock (GTK_STOCK_SAVE, GTK_ICON_SIZE_MENU);
statusbar->priv->print_image = gtk_image_new_from_stock (GTK_STOCK_PRINT, GTK_ICON_SIZE_MENU);
gtk_widget_show (hbox);
gtk_box_pack_start (GTK_BOX (hbox),
statusbar->priv->load_image,
FALSE, TRUE, 4);
gtk_box_pack_start (GTK_BOX (hbox),
statusbar->priv->save_image,
FALSE, TRUE, 4);
gtk_box_pack_start (GTK_BOX (hbox),
statusbar->priv->print_image,
FALSE, TRUE, 4);
gtk_box_pack_start (GTK_BOX (statusbar),
statusbar->priv->state_frame,
FALSE, TRUE, 0);
statusbar->priv->error_frame = gtk_frame_new (NULL);
gtk_frame_set_shadow_type (GTK_FRAME (statusbar->priv->error_frame), GTK_SHADOW_IN);
error_image = gtk_image_new_from_stock (GTK_STOCK_DIALOG_ERROR, GTK_ICON_SIZE_MENU);
gtk_misc_set_padding (GTK_MISC (error_image), 4, 0);
gtk_widget_show (error_image);
statusbar->priv->error_event_box = gtk_event_box_new ();
gtk_event_box_set_visible_window (GTK_EVENT_BOX (statusbar->priv->error_event_box),
FALSE);
gtk_widget_show (statusbar->priv->error_event_box);
gtk_container_add (GTK_CONTAINER (statusbar->priv->error_frame),
statusbar->priv->error_event_box);
gtk_container_add (GTK_CONTAINER (statusbar->priv->error_event_box),
error_image);
gtk_box_pack_start (GTK_BOX (statusbar),
statusbar->priv->error_frame,
FALSE, TRUE, 0);
gtk_box_reorder_child (GTK_BOX (statusbar),
statusbar->priv->error_frame,
0);
}
/**
* gedit_statusbar_new:
*
* Creates a new #GeditStatusbar.
*
* Return value: the new #GeditStatusbar object
**/
GtkWidget *
gedit_statusbar_new (void)
{
return GTK_WIDGET (g_object_new (GEDIT_TYPE_STATUSBAR, NULL));
}
/**
* gedit_set_has_resize_grip:
* @statusbar: a #GeditStatusbar
* @show: if the resize grip is shown
*
* Sets if a resize grip showld be shown.
*
**/
/*
* I don't like this much, in a perfect world it would have been
* possible to override the parent property and use
* gtk_statusbar_set_has_resize_grip. Unfortunately this is not
* possible and it's not even possible to intercept the notify signal
* since the parent property should always be set to false thus when
* using set_resize_grip (FALSE) the property doesn't change and the
* notification is not emitted.
* For now just add this private method; if needed we can turn it into
* a property.
*/
void
_gedit_statusbar_set_has_resize_grip (GeditStatusbar *bar,
gboolean show)
{
g_return_if_fail (GEDIT_IS_STATUSBAR (bar));
gtk_statusbar_set_has_resize_grip (GTK_STATUSBAR (bar->priv->overwrite_mode_statusbar),
show);
}
/**
* gedit_statusbar_set_overwrite:
* @statusbar: a #GeditStatusbar
* @overwrite: if the overwrite mode is set
*
* Sets the overwrite mode on the statusbar.
**/
void
gedit_statusbar_set_overwrite (GeditStatusbar *statusbar,
gboolean overwrite)
{
gchar *msg;
g_return_if_fail (GEDIT_IS_STATUSBAR (statusbar));
gtk_statusbar_pop (GTK_STATUSBAR (statusbar->priv->overwrite_mode_statusbar), 0);
msg = get_overwrite_mode_string (overwrite);
gtk_statusbar_push (GTK_STATUSBAR (statusbar->priv->overwrite_mode_statusbar), 0, msg);
g_free (msg);
}
void
gedit_statusbar_clear_overwrite (GeditStatusbar *statusbar)
{
g_return_if_fail (GEDIT_IS_STATUSBAR (statusbar));
gtk_statusbar_pop (GTK_STATUSBAR (statusbar->priv->overwrite_mode_statusbar), 0);
}
/**
* gedit_statusbar_cursor_position:
* @statusbar: an #GeditStatusbar
* @line: line position
* @col: column position
*
* Sets the cursor position on the statusbar.
**/
void
gedit_statusbar_set_cursor_position (GeditStatusbar *statusbar,
gint line,
gint col)
{
gchar *msg;
g_return_if_fail (GEDIT_IS_STATUSBAR (statusbar));
gtk_statusbar_pop (GTK_STATUSBAR (statusbar->priv->cursor_position_statusbar), 0);
if ((line == -1) && (col == -1))
return;
/* Translators: "Ln" is an abbreviation for "Line", Col is an abbreviation for "Column". Please,
use abbreviations if possible to avoid space problems. */
msg = g_strdup_printf (_(" Ln %d, Col %d"), line, col);
gtk_statusbar_push (GTK_STATUSBAR (statusbar->priv->cursor_position_statusbar), 0, msg);
g_free (msg);
}
static gboolean
remove_message_timeout (GeditStatusbar *statusbar)
{
gtk_statusbar_remove (GTK_STATUSBAR (statusbar),
statusbar->priv->flash_context_id,
statusbar->priv->flash_message_id);
/* remove the timeout */
statusbar->priv->flash_timeout = 0;
return FALSE;
}
/**
* gedit_statusbar_flash_message:
* @statusbar: a #GeditStatusbar
* @context_id: message context_id
* @format: message to flash on the statusbar
*
* Flash a temporary message on the statusbar.
*/
void
gedit_statusbar_flash_message (GeditStatusbar *statusbar,
guint context_id,
const gchar *format, ...)
{
const guint32 flash_length = 3000; /* three seconds */
va_list args;
gchar *msg;
g_return_if_fail (GEDIT_IS_STATUSBAR (statusbar));
g_return_if_fail (format != NULL);
va_start (args, format);
msg = g_strdup_vprintf (format, args);
va_end (args);
/* remove a currently ongoing flash message */
if (statusbar->priv->flash_timeout > 0)
{
g_source_remove (statusbar->priv->flash_timeout);
statusbar->priv->flash_timeout = 0;
gtk_statusbar_remove (GTK_STATUSBAR (statusbar),
statusbar->priv->flash_context_id,
statusbar->priv->flash_message_id);
}
statusbar->priv->flash_context_id = context_id;
statusbar->priv->flash_message_id = gtk_statusbar_push (GTK_STATUSBAR (statusbar),
context_id,
msg);
statusbar->priv->flash_timeout = g_timeout_add (flash_length,
(GtkFunction) remove_message_timeout,
statusbar);
g_free (msg);
}
void
gedit_statusbar_set_window_state (GeditStatusbar *statusbar,
GeditWindowState state,
gint num_of_errors)
{
g_return_if_fail (GEDIT_IS_STATUSBAR (statusbar));
gtk_widget_hide (statusbar->priv->state_frame);
gtk_widget_hide (statusbar->priv->save_image);
gtk_widget_hide (statusbar->priv->load_image);
gtk_widget_hide (statusbar->priv->print_image);
if (state & GEDIT_WINDOW_STATE_SAVING)
{
gtk_widget_show (statusbar->priv->state_frame);
gtk_widget_show (statusbar->priv->save_image);
}
if (state & GEDIT_WINDOW_STATE_LOADING)
{
gtk_widget_show (statusbar->priv->state_frame);
gtk_widget_show (statusbar->priv->load_image);
}
if (state & GEDIT_WINDOW_STATE_PRINTING)
{
gtk_widget_show (statusbar->priv->state_frame);
gtk_widget_show (statusbar->priv->print_image);
}
if (state & GEDIT_WINDOW_STATE_ERROR)
{
gchar *tip;
tip = g_strdup_printf (ngettext("There is a tab with errors",
"There are %d tabs with errors",
num_of_errors),
num_of_errors);
gtk_widget_set_tooltip_text (statusbar->priv->error_event_box,
tip);
g_free (tip);
gtk_widget_show (statusbar->priv->error_frame);
}
else
{
gtk_widget_hide (statusbar->priv->error_frame);
}
}