Saving progress. Lots of changes. Things are a bit broken at the moment.

svn path=/branches/kill-bonobo/; revision=36260

1 files changed, 537 insertions, 0 deletions

diff --git a/shell/e-shell-switcher.c b/shell/e-shell-switcher.c
new file mode 100644
index 0000000000..bfcae011bc
--- /dev/null
+++ b/shell/e-shell-switcher.c
@@ -0,0 +1,537 @@
+/* -*- Mode: C; indent-tabs-mode: t; c-basic-offset: 8; tab-width: 8 -*- */
+/* e-shell-switcher.c
+ *
+ * Copyright (C) 1999-2008 Novell, Inc. (www.novell.com)
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of version 2 of the GNU General Public
+ * License as published by the Free Software Foundation.
+ *
+ * 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., 51 Franklin Street, Fifth Floor,
+ * Boston, MA 02110-1301, USA.
+ */
+
+#include "e-shell-switcher.h"
+
+#define E_SHELL_SWITCHER_GET_PRIVATE(obj) \
+	(G_TYPE_INSTANCE_GET_PRIVATE \
+	((obj), E_TYPE_SHELL_SWITCHER, EShellSwitcherPrivate))
+
+#define H_PADDING 6
+#define V_PADDING 6
+
+struct _EShellSwitcherPrivate {
+	GList *proxies;
+	gboolean style_set;
+	GtkToolbarStyle style;
+	GtkSettings *settings;
+	gulong settings_handler_id;
+};
+
+enum {
+	PROP_0,
+	PROP_TOOLBAR_STYLE
+};
+
+enum {
+	STYLE_CHANGED,
+	LAST_SIGNAL
+};
+
+static gpointer parent_class;
+static guint signals[LAST_SIGNAL];
+
+static void
+switcher_layout_actions (EShellSwitcher *switcher)
+{
+	GtkAllocation *allocation = & GTK_WIDGET (switcher)->allocation;
+	gboolean icons_only;
+	int num_btns = g_list_length (switcher->priv->proxies), btns_per_row;
+	GList **rows, *p;
+	int row_number;
+	int max_width = 0, max_height = 0;
+	int row_last;
+	int x, y;
+	int i;
+
+	if (num_btns == 0)
+		return;
+
+	icons_only = (switcher->priv->style == GTK_TOOLBAR_ICONS);
+
+	/* Figure out the max width and height. */
+	for (p = switcher->priv->proxies; p != NULL; p = p->next) {
+		GtkWidget *widget = p->data;
+		GtkRequisition requisition;
+
+		gtk_widget_size_request (widget, &requisition);
+		max_height = MAX (max_height, requisition.height);
+		max_width = MAX (max_width, requisition.width);
+	}
+
+	/* Figure out how many rows and columns we'll use. */
+	btns_per_row = MAX (1, allocation->width / (max_width + H_PADDING));
+	if (!icons_only) {
+		/* If using text buttons, we want to try to have a
+		 * completely filled-in grid, but if we can't, we want
+		 * the odd row to have just a single button. */
+		while (num_btns % btns_per_row > 1)
+			btns_per_row--;
+	}
+
+	/* Assign buttons to rows. */
+	rows = g_new0 (GList *, num_btns / btns_per_row + 1);
+
+	if (!icons_only && num_btns % btns_per_row != 0) {
+		rows[0] = g_list_append (rows[0], switcher->priv->proxies->data);
+
+		p = switcher->priv->proxies->next;
+		row_number = p ? 1 : 0;
+	} else {
+		p = switcher->priv->proxies;
+		row_number = 0;
+	}
+
+	for (; p != NULL; p = p->next) {
+		GtkWidget *widget = p->data;
+
+		if (g_list_length (rows[row_number]) == btns_per_row)
+			row_number++;
+
+		rows[row_number] = g_list_append (rows[row_number], widget);
+	}
+
+	row_last = row_number;
+
+	/* Layout the buttons. */
+	y = allocation->y;
+	for (i = 0; i < row_last + 1; i++) {
+		int len, extra_width;
+
+		x = H_PADDING + allocation->x;
+		len = g_list_length (rows[i]);
+		if (!icons_only)
+			extra_width = (allocation->width - (len * max_width ) - (len * H_PADDING)) / len;
+		else
+			extra_width = 0;
+		for (p = rows [i]; p != NULL; p = p->next) {
+			GtkAllocation child_allocation;
+
+			child_allocation.x = x;
+			child_allocation.y = y;
+			child_allocation.width = max_width + extra_width;
+			child_allocation.height = max_height;
+
+			gtk_widget_size_allocate (GTK_WIDGET (p->data), &child_allocation);
+
+			x += child_allocation.width + H_PADDING;
+		}
+
+		y += max_height + V_PADDING;
+	}
+
+	for (i = 0; i <= row_last; i ++)
+		g_list_free (rows [i]);
+	g_free (rows);
+}
+
+static void
+switcher_toolbar_style_changed_cb (EShellSwitcher *switcher)
+{
+	if (!switcher->priv->style_set) {
+		switcher->priv->style_set = TRUE;
+		e_shell_switcher_unset_style (switcher);
+	}
+}
+
+static void
+switcher_set_property (GObject *object,
+                      guint property_id,
+                      const GValue *value,
+                      GParamSpec *pspec)
+{
+	switch (property_id) {
+		case PROP_TOOLBAR_STYLE:
+			e_shell_switcher_set_style (
+				E_SHELL_SWITCHER (object),
+				g_value_get_enum (value));
+			return;
+	}
+
+	G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec);
+}
+
+static void
+switcher_get_property (GObject *object,
+                      guint property_id,
+                      GValue *value,
+                      GParamSpec *pspec)
+{
+	switch (property_id) {
+		case PROP_TOOLBAR_STYLE:
+			g_value_set_enum (
+				value, e_shell_switcher_get_style (
+				E_SHELL_SWITCHER (object)));
+			return;
+	}
+
+	G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec);
+}
+
+static void
+switcher_dispose (GObject *object)
+{
+	EShellSwitcherPrivate *priv;
+
+	priv = E_SHELL_SWITCHER_GET_PRIVATE (object);
+
+	while (priv->proxies != NULL) {
+		GtkWidget *widget = priv->proxies->data;
+		gtk_container_remove (GTK_CONTAINER (object), widget);
+	}
+
+	/* Chain up to parent's dispose() method. */
+	G_OBJECT_CLASS (parent_class)->dispose (object);
+}
+
+static void
+switcher_size_request (GtkWidget *widget,
+                      GtkRequisition *requisition)
+{
+	EShellSwitcherPrivate *priv;
+	GList *iter;
+
+	priv = E_SHELL_SWITCHER_GET_PRIVATE (widget);
+
+	requisition->width = 0;
+	requisition->height = 0;
+
+	for (iter = priv->proxies; iter != NULL; iter = iter->next) {
+		GtkWidget *widget = iter->data;
+		GtkRequisition child_requisition;
+
+		gtk_widget_size_request (widget, &child_requisition);
+
+		child_requisition.width += H_PADDING;
+		child_requisition.height += V_PADDING;
+
+		requisition->width = MAX (
+			requisition->width, child_requisition.width);
+		requisition->height += child_requisition.height;
+	}
+}
+
+static void
+switcher_size_allocate (GtkWidget *widget,
+                       GtkAllocation *allocation)
+{
+	EShellSwitcherPrivate *priv;
+
+	priv = E_SHELL_SWITCHER_GET_PRIVATE (widget);
+
+	widget->allocation = *allocation;
+
+	switcher_layout_actions (E_SHELL_SWITCHER (widget));
+}
+
+static void
+switcher_screen_changed (GtkWidget *widget,
+                        GdkScreen *previous_screen)
+{
+	EShellSwitcherPrivate *priv;
+	GtkSettings *settings;
+
+	priv = E_SHELL_SWITCHER_GET_PRIVATE (widget);
+
+	if (gtk_widget_has_screen (widget))
+		settings = gtk_widget_get_settings (widget);
+	else
+		settings = NULL;
+
+	if (settings == priv->settings)
+		return;
+
+	if (priv->settings != NULL) {
+		g_signal_handler_disconnect (
+			priv->settings, priv->settings_handler_id);
+		g_object_unref (priv->settings);
+	}
+
+	if (settings != NULL) {
+		priv->settings = g_object_ref (settings);
+		priv->settings_handler_id = g_signal_connect_swapped (
+			settings, "notify::gtk-toolbar-style",
+			G_CALLBACK (switcher_toolbar_style_changed_cb), widget);
+	} else
+		priv->settings = NULL;
+
+	switcher_toolbar_style_changed_cb (E_SHELL_SWITCHER (widget));
+}
+
+static void
+switcher_remove (GtkContainer *container,
+                GtkWidget *widget)
+{
+	EShellSwitcherPrivate *priv;
+	GList *link;
+
+	priv = E_SHELL_SWITCHER_GET_PRIVATE (container);
+
+	/* Look in the internal widgets first. */
+
+	link = g_list_find (priv->proxies, widget);
+	if (link != NULL) {
+		GtkWidget *widget = link->data;
+
+		gtk_widget_unparent (widget);
+		priv->proxies = g_list_delete_link (priv->proxies, link);
+		gtk_widget_queue_resize (GTK_WIDGET (container));
+		return;
+	}
+
+	/* Chain up to parent's remove() method. */
+	GTK_CONTAINER_CLASS (parent_class)->remove (container, widget);
+}
+
+static void
+switcher_forall (GtkContainer *container,
+                gboolean include_internals,
+                GtkCallback callback,
+                gpointer callback_data)
+{
+	EShellSwitcherPrivate *priv;
+
+	priv = E_SHELL_SWITCHER_GET_PRIVATE (container);
+
+	if (include_internals)
+		g_list_foreach (
+			priv->proxies, (GFunc) callback, callback_data);
+
+	/* Chain up to parent's forall() method. */
+	GTK_CONTAINER_CLASS (parent_class)->forall (
+		container, include_internals, callback, callback_data);
+}
+
+static void
+switcher_style_changed (EShellSwitcher *switcher,
+                       GtkToolbarStyle style)
+{
+	if (switcher->priv->style == style)
+		return;
+
+	switcher->priv->style = style;
+
+	g_list_foreach (
+		switcher->priv->proxies,
+		(GFunc) gtk_tool_item_toolbar_reconfigured, NULL);
+
+	gtk_widget_queue_resize (GTK_WIDGET (switcher));
+	g_object_notify (G_OBJECT (switcher), "toolbar-style");
+}
+
+static GtkIconSize
+switcher_get_icon_size (GtkToolShell *shell)
+{
+	return GTK_ICON_SIZE_LARGE_TOOLBAR;
+}
+
+static GtkOrientation
+switcher_get_orientation (GtkToolShell *shell)
+{
+	return GTK_ORIENTATION_HORIZONTAL;
+}
+
+static GtkToolbarStyle
+switcher_get_style (GtkToolShell *shell)
+{
+	return e_shell_switcher_get_style (E_SHELL_SWITCHER (shell));
+}
+
+static GtkReliefStyle
+switcher_get_relief_style (GtkToolShell *shell)
+{
+	/* XXX GTK+ 2.13.6 discards this value.
+	 *     http://bugzilla.gnome.org/show_bug.cgi?id=549943 */
+	return GTK_RELIEF_NORMAL;
+}
+
+static void
+switcher_class_init (EShellSwitcherClass *class)
+{
+	GObjectClass *object_class;
+	GtkWidgetClass *widget_class;
+	GtkContainerClass *container_class;
+
+	parent_class = g_type_class_peek_parent (class);
+	g_type_class_add_private (class, sizeof (EShellSwitcherPrivate));
+
+	object_class = G_OBJECT_CLASS (class);
+	object_class->set_property = switcher_set_property;
+	object_class->get_property = switcher_get_property;
+	object_class->dispose = switcher_dispose;
+
+	widget_class = GTK_WIDGET_CLASS (class);
+	widget_class->size_request = switcher_size_request;
+	widget_class->size_allocate = switcher_size_allocate;
+	widget_class->screen_changed = switcher_screen_changed;
+
+	container_class = GTK_CONTAINER_CLASS (class);
+	container_class->remove = switcher_remove;
+	container_class->forall = switcher_forall;
+
+	class->style_changed = switcher_style_changed;
+
+	g_object_class_install_property (
+		object_class,
+		PROP_TOOLBAR_STYLE,
+		g_param_spec_enum (
+			"toolbar-style",
+			NULL,
+			NULL,
+			GTK_TYPE_TOOLBAR_STYLE,
+			E_SHELL_SWITCHER_DEFAULT_TOOLBAR_STYLE,
+			G_PARAM_READWRITE |
+			G_PARAM_CONSTRUCT));
+
+	signals[STYLE_CHANGED] = g_signal_new (
+		"style-changed",
+		G_OBJECT_CLASS_TYPE (class),
+		G_SIGNAL_RUN_FIRST,
+		G_STRUCT_OFFSET (EShellSwitcherClass, style_changed),
+		NULL, NULL,
+		g_cclosure_marshal_VOID__ENUM,
+		G_TYPE_NONE, 1,
+		GTK_TYPE_TOOLBAR_STYLE);
+}
+
+static void
+switcher_init (EShellSwitcher *switcher)
+{
+	switcher->priv = E_SHELL_SWITCHER_GET_PRIVATE (switcher);
+
+	GTK_WIDGET_SET_FLAGS (switcher, GTK_NO_WINDOW);
+}
+
+static void
+switcher_tool_shell_iface_init (GtkToolShellIface *iface)
+{
+	iface->get_icon_size = switcher_get_icon_size;
+	iface->get_orientation = switcher_get_orientation;
+	iface->get_style = switcher_get_style;
+	iface->get_relief_style = switcher_get_relief_style;
+}
+
+GType
+e_shell_switcher_get_type (void)
+{
+	static GType type = 0;
+
+	if (G_UNLIKELY (type == 0)) {
+		static const GTypeInfo type_info = {
+			sizeof (EShellSwitcherClass),
+			(GBaseInitFunc) NULL,
+			(GBaseFinalizeFunc) NULL,
+			(GClassInitFunc) switcher_class_init,
+			(GClassFinalizeFunc) NULL,
+			NULL,  /* class_data */
+			sizeof (EShellSwitcher),
+			0,     /* n_preallocs */
+			(GInstanceInitFunc) switcher_init,
+			NULL   /* value_table */
+		};
+
+		static const GInterfaceInfo tool_shell_info = {
+			(GInterfaceInitFunc) switcher_tool_shell_iface_init,
+			(GInterfaceFinalizeFunc) NULL,
+			NULL   /* interface_data */
+		};
+
+		type = g_type_register_static (
+			GTK_TYPE_BIN, "EShellSwitcher", &type_info, 0);
+
+		g_type_add_interface_static (
+			type, GTK_TYPE_TOOL_SHELL, &tool_shell_info);
+	}
+
+	return type;
+}
+
+GtkWidget *
+e_shell_switcher_new (void)
+{
+	return g_object_new (E_TYPE_SHELL_SWITCHER, NULL);
+}
+
+void
+e_shell_switcher_add_action (EShellSwitcher *switcher,
+                             GtkAction *action)
+{
+	GtkWidget *widget;
+
+	g_return_if_fail (E_IS_SHELL_SWITCHER (switcher));
+	g_return_if_fail (GTK_IS_ACTION (action));
+
+	g_object_ref (action);
+	widget = gtk_action_create_tool_item (action);
+	gtk_tool_item_set_is_important (GTK_TOOL_ITEM (widget), TRUE);
+	gtk_widget_show (widget);
+
+	switcher->priv->proxies = g_list_append (
+		switcher->priv->proxies, widget);
+
+	gtk_widget_set_parent (widget, GTK_WIDGET (switcher));
+	gtk_widget_queue_resize (GTK_WIDGET (switcher));
+}
+
+GtkToolbarStyle
+e_shell_switcher_get_style (EShellSwitcher *switcher)
+{
+	g_return_val_if_fail (
+		E_IS_SHELL_SWITCHER (switcher),
+		E_SHELL_SWITCHER_DEFAULT_TOOLBAR_STYLE);
+
+	return switcher->priv->style;
+}
+
+void
+e_shell_switcher_set_style (EShellSwitcher *switcher,
+                     GtkToolbarStyle style)
+{
+	g_return_if_fail (E_IS_SHELL_SWITCHER (switcher));
+
+	switcher->priv->style_set = TRUE;
+	g_signal_emit (switcher, signals[STYLE_CHANGED], 0, style);
+}
+
+void
+e_shell_switcher_unset_style (EShellSwitcher *switcher)
+{
+	GtkSettings *settings;
+	GtkToolbarStyle style;
+
+	g_return_if_fail (E_IS_SHELL_SWITCHER (switcher));
+
+	if (!switcher->priv->style_set)
+		return;
+
+	settings = switcher->priv->settings;
+	if (settings != NULL)
+		g_object_get (settings, "gtk-toolbar-style", &style, NULL);
+	else
+		style = E_SHELL_SWITCHER_DEFAULT_TOOLBAR_STYLE;
+
+	if (style == GTK_TOOLBAR_BOTH)
+		style = GTK_TOOLBAR_BOTH_HORIZ;
+
+	if (style != switcher->priv->style)
+		g_signal_emit (switcher, signals[STYLE_CHANGED], 0, style);
+
+	switcher->priv->style_set = FALSE;
+}