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1 files changed, 626 insertions, 0 deletions

diff --git a/gedit/gedit-message-area.c b/gedit/gedit-message-area.c
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@@ -0,0 +1,626 @@
+/*
+ * 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;
+}
+