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xed/gedit/gedit-message-area.c

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/*
* gedit-message-area.c
* This file is part of gedit
*
* Copyright (C) 2005 - Paolo Maggi
*
* 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.
*
* $Id$
*/
/* TODO: Style properties */
#ifdef HAVE_CONFIG_H
#include <config.h>
#endif
#include <glib/gi18n.h>
#include <gtk/gtk.h>
#include <gdk/gdk.h>
#include <gdk/gdkkeysyms.h>
#include "gedit-message-area.h"
#define GEDIT_MESSAGE_AREA_GET_PRIVATE(object)(G_TYPE_INSTANCE_GET_PRIVATE ((object), \
GEDIT_TYPE_MESSAGE_AREA, \
GeditMessageAreaPrivate))
struct _GeditMessageAreaPrivate
{
GtkWidget *main_hbox;
GtkWidget *contents;
GtkWidget *action_area;
gboolean changing_style;
};
typedef struct _ResponseData ResponseData;
struct _ResponseData
{
gint response_id;
};
enum {
RESPONSE,
CLOSE,
LAST_SIGNAL
};
static guint signals[LAST_SIGNAL];
G_DEFINE_TYPE(GeditMessageArea, gedit_message_area, GTK_TYPE_HBOX)
static void
gedit_message_area_finalize (GObject *object)
{
/*
GeditMessageArea *message_area = GEDIT_MESSAGE_AREA (object);
*/
G_OBJECT_CLASS (gedit_message_area_parent_class)->finalize (object);
}
static ResponseData *
get_response_data (GtkWidget *widget,
gboolean create)
{
ResponseData *ad = g_object_get_data (G_OBJECT (widget),
"gedit-message-area-response-data");
if (ad == NULL && create)
{
ad = g_new (ResponseData, 1);
g_object_set_data_full (G_OBJECT (widget),
"gedit-message-area-response-data",
ad,
g_free);
}
return ad;
}
static GtkWidget *
find_button (GeditMessageArea *message_area,
gint response_id)
{
GList *children, *tmp_list;
GtkWidget *child = NULL;
children = gtk_container_get_children (
GTK_CONTAINER (message_area->priv->action_area));
for (tmp_list = children; tmp_list; tmp_list = tmp_list->next)
{
ResponseData *rd = get_response_data (tmp_list->data, FALSE);
if (rd && rd->response_id == response_id)
{
child = tmp_list->data;
break;
}
}
g_list_free (children);
return child;
}
static void
gedit_message_area_close (GeditMessageArea *message_area)
{
if (!find_button (message_area, GTK_RESPONSE_CANCEL))
return;
/* emit response signal */
gedit_message_area_response (GEDIT_MESSAGE_AREA (message_area),
GTK_RESPONSE_CANCEL);
}
static gboolean
paint_message_area (GtkWidget *widget,
GdkEventExpose *event,
gpointer user_data)
{
gtk_paint_flat_box (widget->style,
widget->window,
GTK_STATE_NORMAL,
GTK_SHADOW_OUT,
NULL,
widget,
"tooltip",
widget->allocation.x + 1,
widget->allocation.y + 1,
widget->allocation.width - 2,
widget->allocation.height - 2);
return FALSE;
}
static void
gedit_message_area_class_init (GeditMessageAreaClass *klass)
{
GObjectClass *object_class;
GtkBindingSet *binding_set;
object_class = G_OBJECT_CLASS (klass);
object_class->finalize = gedit_message_area_finalize;
klass->close = gedit_message_area_close;
g_type_class_add_private (object_class, sizeof(GeditMessageAreaPrivate));
signals[RESPONSE] = g_signal_new ("response",
G_OBJECT_CLASS_TYPE (klass),
G_SIGNAL_RUN_LAST,
G_STRUCT_OFFSET (GeditMessageAreaClass, response),
NULL, NULL,
g_cclosure_marshal_VOID__INT,
G_TYPE_NONE, 1,
G_TYPE_INT);
signals[CLOSE] = g_signal_new ("close",
G_OBJECT_CLASS_TYPE (klass),
G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION,
G_STRUCT_OFFSET (GeditMessageAreaClass, close),
NULL, NULL,
g_cclosure_marshal_VOID__VOID,
G_TYPE_NONE, 0);
binding_set = gtk_binding_set_by_class (klass);
gtk_binding_entry_add_signal (binding_set, GDK_Escape, 0, "close", 0);
}
static void
style_set (GtkWidget *widget,
GtkStyle *prev_style,
GeditMessageArea *message_area)
{
GtkWidget *window;
GtkStyle *style;
if (message_area->priv->changing_style)
return;
/* This is a hack needed to use the tooltip background color */
window = gtk_window_new (GTK_WINDOW_POPUP);
gtk_widget_set_name (window, "gtk-tooltip");
gtk_widget_ensure_style (window);
style = gtk_widget_get_style (window);
message_area->priv->changing_style = TRUE;
gtk_widget_set_style (GTK_WIDGET (message_area), style);
message_area->priv->changing_style = FALSE;
gtk_widget_destroy (window);
gtk_widget_queue_draw (GTK_WIDGET (message_area));
}
static void
gedit_message_area_init (GeditMessageArea *message_area)
{
message_area->priv = GEDIT_MESSAGE_AREA_GET_PRIVATE (message_area);
message_area->priv->main_hbox = gtk_hbox_new (FALSE, 16); /* FIXME: use style properties */
gtk_widget_show (message_area->priv->main_hbox);
gtk_container_set_border_width (GTK_CONTAINER (message_area->priv->main_hbox),
8); /* FIXME: use style properties */
message_area->priv->action_area = gtk_vbox_new (TRUE, 10); /* FIXME: use style properties */
gtk_widget_show (message_area->priv->action_area);
gtk_box_pack_end (GTK_BOX (message_area->priv->main_hbox),
message_area->priv->action_area,
FALSE,
TRUE,
0);
gtk_box_pack_start (GTK_BOX (message_area),
message_area->priv->main_hbox,
TRUE,
TRUE,
0);
gtk_widget_set_app_paintable (GTK_WIDGET (message_area), TRUE);
g_signal_connect (message_area,
"expose-event",
G_CALLBACK (paint_message_area),
NULL);
/* Note that we connect to style-set on one of the internal
* widgets, not on the message area itself, since gtk does
* not deliver any further style-set signals for a widget on
* which the style has been forced with gtk_widget_set_style() */
g_signal_connect (message_area->priv->main_hbox,
"style-set",
G_CALLBACK (style_set),
message_area);
}
static gint
get_response_for_widget (GeditMessageArea *message_area,
GtkWidget *widget)
{
ResponseData *rd;
rd = get_response_data (widget, FALSE);
if (!rd)
return GTK_RESPONSE_NONE;
else
return rd->response_id;
}
static void
action_widget_activated (GtkWidget *widget, GeditMessageArea *message_area)
{
gint response_id;
response_id = get_response_for_widget (message_area, widget);
gedit_message_area_response (message_area, response_id);
}
void
gedit_message_area_add_action_widget (GeditMessageArea *message_area,
GtkWidget *child,
gint response_id)
{
ResponseData *ad;
guint signal_id;
g_return_if_fail (GEDIT_IS_MESSAGE_AREA (message_area));
g_return_if_fail (GTK_IS_WIDGET (child));
ad = get_response_data (child, TRUE);
ad->response_id = response_id;
if (GTK_IS_BUTTON (child))
signal_id = g_signal_lookup ("clicked", GTK_TYPE_BUTTON);
else
signal_id = GTK_WIDGET_GET_CLASS (child)->activate_signal;
if (signal_id)
{
GClosure *closure;
closure = g_cclosure_new_object (G_CALLBACK (action_widget_activated),
G_OBJECT (message_area));
g_signal_connect_closure_by_id (child,
signal_id,
0,
closure,
FALSE);
}
else
g_warning ("Only 'activatable' widgets can be packed into the action area of a GeditMessageArea");
if (response_id != GTK_RESPONSE_HELP)
gtk_box_pack_start (GTK_BOX (message_area->priv->action_area),
child,
FALSE,
FALSE,
0);
else
gtk_box_pack_end (GTK_BOX (message_area->priv->action_area),
child,
FALSE,
FALSE,
0);
}
/**
* gedit_message_area_set_contents:
* @message_area: a #GeditMessageArea
* @contents: widget you want to add to the contents area
*
* Adds the @contents widget to the contents area of #GeditMessageArea.
*/
void
gedit_message_area_set_contents (GeditMessageArea *message_area,
GtkWidget *contents)
{
g_return_if_fail (GEDIT_IS_MESSAGE_AREA (message_area));
g_return_if_fail (GTK_IS_WIDGET (contents));
message_area->priv->contents = contents;
gtk_box_pack_start (GTK_BOX (message_area->priv->main_hbox),
message_area->priv->contents,
TRUE,
TRUE,
0);
}
/**
* gedit_message_area_add_button:
* @message_area: a #GeditMessageArea
* @button_text: text of button, or stock ID
* @response_id: response ID for the button
*
* Adds a button with the given text (or a stock button, if button_text is a stock ID)
* and sets things up so that clicking the button will emit the "response" signal
* with the given response_id. The button is appended to the end of the message area's
* action area. The button widget is returned, but usually you don't need it.
*
* Returns: the button widget that was added
*/
GtkWidget*
gedit_message_area_add_button (GeditMessageArea *message_area,
const gchar *button_text,
gint response_id)
{
GtkWidget *button;
g_return_val_if_fail (GEDIT_IS_MESSAGE_AREA (message_area), NULL);
g_return_val_if_fail (button_text != NULL, NULL);
button = gtk_button_new_from_stock (button_text);
GTK_WIDGET_SET_FLAGS (button, GTK_CAN_DEFAULT);
gtk_widget_show (button);
gedit_message_area_add_action_widget (message_area,
button,
response_id);
return button;
}
static void
add_buttons_valist (GeditMessageArea *message_area,
const gchar *first_button_text,
va_list args)
{
const gchar* text;
gint response_id;
g_return_if_fail (GEDIT_IS_MESSAGE_AREA (message_area));
if (first_button_text == NULL)
return;
text = first_button_text;
response_id = va_arg (args, gint);
while (text != NULL)
{
gedit_message_area_add_button (message_area,
text,
response_id);
text = va_arg (args, gchar*);
if (text == NULL)
break;
response_id = va_arg (args, int);
}
}
/**
* gedit_message_area_add_buttons:
* @message_area: a #GeditMessageArea
* @first_button_text: button text or stock ID
* @...: response ID for first button, then more text-response_id pairs
*
* Adds more buttons, same as calling gedit_message_area_add_button() repeatedly.
* The variable argument list should be NULL-terminated as with
* gedit_message_area_new_with_buttons(). Each button must have both text and response ID.
*/
void
gedit_message_area_add_buttons (GeditMessageArea *message_area,
const gchar *first_button_text,
...)
{
va_list args;
va_start (args, first_button_text);
add_buttons_valist (message_area,
first_button_text,
args);
va_end (args);
}
/**
* gedit_message_area_new:
*
* Creates a new #GeditMessageArea object.
*
* Returns: a new #GeditMessageArea object
*/
GtkWidget *
gedit_message_area_new (void)
{
return g_object_new (GEDIT_TYPE_MESSAGE_AREA, NULL);
}
/**
* gedit_message_area_new_with_buttons:
* @first_button_text: stock ID or text to go in first button, or NULL
* @...: response ID for first button, then additional buttons, ending with NULL
*
* Creates a new #GeditMessageArea with buttons. Button text/response ID pairs
* should be listed, with a NULL pointer ending the list. Button text can be either
* a stock ID such as GTK_STOCK_OK, or some arbitrary text. A response ID can be any
* positive number, or one of the values in the GtkResponseType enumeration. If
* the user clicks one of these dialog buttons, GeditMessageArea will emit the "response"
* signal with the corresponding response ID.
*
* Returns: a new #GeditMessageArea
*/
GtkWidget *
gedit_message_area_new_with_buttons (const gchar *first_button_text,
...)
{
GeditMessageArea *message_area;
va_list args;
message_area = GEDIT_MESSAGE_AREA (gedit_message_area_new ());
va_start (args, first_button_text);
add_buttons_valist (message_area,
first_button_text,
args);
va_end (args);
return GTK_WIDGET (message_area);
}
/**
* gedit_message_area_set_response_sensitive:
* @message_area: a #GeditMessageArea
* @response_id: a response ID
* @setting: TRUE for sensitive
*
* Calls gtk_widget_set_sensitive (widget, setting) for each widget in the dialog's
* action area with the given response_id. A convenient way to sensitize/desensitize
* dialog buttons.
*/
void
gedit_message_area_set_response_sensitive (GeditMessageArea *message_area,
gint response_id,
gboolean setting)
{
GList *children;
GList *tmp_list;
g_return_if_fail (GEDIT_IS_MESSAGE_AREA (message_area));
children = gtk_container_get_children (GTK_CONTAINER (message_area->priv->action_area));
tmp_list = children;
while (tmp_list != NULL)
{
GtkWidget *widget = tmp_list->data;
ResponseData *rd = get_response_data (widget, FALSE);
if (rd && rd->response_id == response_id)
gtk_widget_set_sensitive (widget, setting);
tmp_list = g_list_next (tmp_list);
}
g_list_free (children);
}
/**
* gedit_message_area_set_default_response:
* @message_area: a #GeditMessageArea
* @response_id: a response ID
*
* Sets the last widget in the message area's action area with the given response_id
* as the default widget for the dialog. Pressing "Enter" normally activates the
* default widget.
*/
void
gedit_message_area_set_default_response (GeditMessageArea *message_area,
gint response_id)
{
GList *children;
GList *tmp_list;
g_return_if_fail (GEDIT_IS_MESSAGE_AREA (message_area));
children = gtk_container_get_children (GTK_CONTAINER (message_area->priv->action_area));
tmp_list = children;
while (tmp_list != NULL)
{
GtkWidget *widget = tmp_list->data;
ResponseData *rd = get_response_data (widget, FALSE);
if (rd && rd->response_id == response_id)
gtk_widget_grab_default (widget);
tmp_list = g_list_next (tmp_list);
}
g_list_free (children);
}
/**
* gedit_message_area_set_default_response:
* @message_area: a #GeditMessageArea
* @response_id: a response ID
*
* Emits the 'response' signal with the given @response_id.
*/
void
gedit_message_area_response (GeditMessageArea *message_area,
gint response_id)
{
g_return_if_fail (GEDIT_IS_MESSAGE_AREA (message_area));
g_signal_emit (message_area,
signals[RESPONSE],
0,
response_id);
}
/**
* gedit_message_area_add_stock_button_with_text:
* @message_area: a #GeditMessageArea
* @text: the text to visualize in the button
* @stock_id: the stock ID of the button
* @response_id: a response ID
*
* Same as gedit_message_area_add_button() but with a specific text.
*/
GtkWidget *
gedit_message_area_add_stock_button_with_text (GeditMessageArea *message_area,
const gchar *text,
const gchar *stock_id,
gint response_id)
{
GtkWidget *button;
g_return_val_if_fail (GEDIT_IS_MESSAGE_AREA (message_area), NULL);
g_return_val_if_fail (text != NULL, NULL);
g_return_val_if_fail (stock_id != NULL, NULL);
button = gtk_button_new_with_mnemonic (text);
gtk_button_set_image (GTK_BUTTON (button),
gtk_image_new_from_stock (stock_id,
GTK_ICON_SIZE_BUTTON));
GTK_WIDGET_SET_FLAGS (button, GTK_CAN_DEFAULT);
gtk_widget_show (button);
gedit_message_area_add_action_widget (message_area,
button,
response_id);
return button;
}
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