1 files changed, 378 insertions, 0 deletions
diff --git a/shell/e-shell-folder-title-bar.c b/shell/e-shell-folder-title-bar.c
new file mode 100644
index 0000000000..0f38faccf1
--- /dev/null
+++ b/shell/e-shell-folder-title-bar.c
@@ -0,0 +1,378 @@
+/* -*- Mode: C; indent-tabs-mode: t; c-basic-offset: 8; tab-width: 8 -*- */
+/* e-shell-folder-title-bar.c
+ *
+ * Copyright (C) 2000  Helix Code, Inc.
+ *
+ * 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.
+ *
+ * Author: Ettore Perazzoli
+ */
+
+#ifdef HAVE_CONFIG_H
+#include <config.h>
+#endif
+
+#include <gnome.h>
+#include <gdk-pixbuf/gdk-pixbuf.h>
+
+#include "widgets/misc/e-clipped-label.h"
+#include "e-util/e-util.h"
+
+#include "e-shell-constants.h"
+#include "e-shell-folder-title-bar.h"
+
+
+#define PARENT_TYPE GTK_TYPE_EVENT_BOX
+static GtkEventBox *parent_class = NULL;
+
+struct _EShellFolderTitleBarPrivate {
+	GdkPixbuf *icon;
+	GtkWidget *icon_widget;
+
+	GtkWidget *hbox;
+	GtkWidget *label;
+	GtkWidget *button_hbox;
+	GtkWidget *button;
+};
+
+enum {
+	TITLE_CLICKED,
+	LAST_SIGNAL
+};
+
+static guint signals[LAST_SIGNAL] = { 0 };
+
+
+/* Icon handling.  */
+
+static unsigned int
+rgb_from_gdk_color (GdkColor *color)
+{
+	return (((color->red >> 8) << 16) |
+		((color->green >> 8) << 8) |
+		((color->blue >> 8)));
+}
+
+static GdkPixmap *
+make_icon_pixmap (EShellFolderTitleBar *folder_title_bar,
+		  const GdkPixbuf *pixbuf)
+{
+	GdkPixmap *pixmap;
+	GtkWidget *widget;
+	unsigned int depth;
+	unsigned int rgb;
+
+	widget = GTK_WIDGET (folder_title_bar);
+
+	rgb = rgb_from_gdk_color (&widget->style->bg[GTK_STATE_NORMAL]);
+
+	depth = gtk_widget_get_visual (widget)->depth;
+
+	pixmap = gdk_pixmap_new (GTK_WIDGET (folder_title_bar)->window,
+				 E_SHELL_MINI_ICON_SIZE, E_SHELL_MINI_ICON_SIZE,
+				 depth);
+
+	if (pixbuf == NULL) {
+		gdk_draw_rectangle (pixmap, widget->style->bg_gc[GTK_STATE_NORMAL], TRUE,
+				    0, 0, E_SHELL_MINI_ICON_SIZE, E_SHELL_MINI_ICON_SIZE);
+	} else {
+		GdkPixbuf *composited_pixbuf;
+
+		composited_pixbuf = gdk_pixbuf_composite_color_simple
+			(pixbuf, gdk_pixbuf_get_width (pixbuf), gdk_pixbuf_get_height (pixbuf),
+			 GDK_INTERP_NEAREST, 255, 32, rgb, rgb);
+
+		gdk_pixbuf_render_to_drawable (composited_pixbuf,
+					       pixmap, widget->style->fg_gc[GTK_STATE_NORMAL],
+					       0, 0, 0, 0,
+					       E_SHELL_MINI_ICON_SIZE, E_SHELL_MINI_ICON_SIZE,
+					       GDK_RGB_DITHER_MAX, 0, 0);
+
+		gdk_pixbuf_unref (composited_pixbuf);
+	}
+
+	return pixmap;
+}
+
+
+/* Style handling.  */
+
+static void
+endarken_style (GtkWidget *widget)
+{
+	GtkStyle *style;
+	GtkRcStyle *new_rc_style;
+	int i;
+
+	style = widget->style;
+
+	new_rc_style = gtk_rc_style_new ();
+
+	for (i = 0; i < 5; i++) {
+		new_rc_style->bg[i].red      = style->bg[i].red * .8;
+		new_rc_style->bg[i].green    = style->bg[i].green * .8;
+		new_rc_style->bg[i].blue     = style->bg[i].blue * .8;
+		new_rc_style->fg[i].red      = 0xffff;
+		new_rc_style->fg[i].green    = 0xffff;
+		new_rc_style->fg[i].blue     = 0xffff;
+		new_rc_style->color_flags[i] = GTK_RC_BG | GTK_RC_FG;
+	}
+
+	gtk_widget_modify_style (widget, new_rc_style);
+
+	gtk_rc_style_unref (new_rc_style);
+}
+
+static void
+style_set_cb (GtkWidget *widget,
+	      GtkStyle *previous_style,
+	      void *data)
+{
+	/* This will cause a style_set signal to be emitted again, so we need to do this to prevent infinite recursion.  */
+	gtk_signal_handler_block_by_func (GTK_OBJECT (widget), GTK_SIGNAL_FUNC (style_set_cb), data);
+
+	endarken_style (widget);
+
+	gtk_signal_handler_unblock_by_func (GTK_OBJECT (widget), GTK_SIGNAL_FUNC (style_set_cb), data);
+}
+
+static void
+endarken_and_connect_style_set_signal (GtkWidget *widget)
+{
+	endarken_style (widget);
+	gtk_signal_connect (GTK_OBJECT (widget), "style_set",
+			    GTK_SIGNAL_FUNC (style_set_cb), NULL);
+}
+
+static void
+setup_style (EShellFolderTitleBar *folder_title_bar)
+{
+	EShellFolderTitleBarPrivate *priv;
+
+	priv = folder_title_bar->priv;
+
+	/* endarken_and_connect_style_set_signal (priv->button); */
+	endarken_and_connect_style_set_signal (priv->label);
+	endarken_and_connect_style_set_signal (GTK_WIDGET (folder_title_bar));
+}
+
+
+/* Button signals.  */
+
+static void
+title_button_clicked_cb (GtkButton *button,
+			 void *data)
+{
+	EShellFolderTitleBar *folder_title_bar;
+
+	folder_title_bar = E_SHELL_FOLDER_TITLE_BAR (data);
+
+	gtk_signal_emit (GTK_OBJECT (folder_title_bar), signals[TITLE_CLICKED]);
+}
+
+
+/* GTkWidget methods. */
+
+static void
+realize (GtkWidget *widget)
+{
+	EShellFolderTitleBar *folder_title_bar;
+	EShellFolderTitleBarPrivate *priv;
+	GdkPixmap *pixmap;
+
+	(* GTK_WIDGET_CLASS (parent_class)->realize) (widget);
+
+	folder_title_bar = E_SHELL_FOLDER_TITLE_BAR (widget);
+	priv = folder_title_bar->priv;
+
+	pixmap = make_icon_pixmap (folder_title_bar, priv->icon);
+	priv->icon_widget = gtk_pixmap_new (pixmap, NULL);
+	gdk_pixmap_unref (pixmap);
+	gtk_widget_show (priv->icon_widget);
+
+	gtk_misc_set_alignment (GTK_MISC (priv->icon_widget), 1.0, .5);
+	gtk_misc_set_padding (GTK_MISC (priv->icon_widget), 5, 0);
+	gtk_box_pack_start (GTK_BOX (priv->hbox), priv->icon_widget, TRUE, TRUE, 2);
+}
+
+static void
+unrealize (GtkWidget *widget)
+{
+	EShellFolderTitleBar *folder_title_bar;
+	EShellFolderTitleBarPrivate *priv;
+
+	(* GTK_WIDGET_CLASS (parent_class)->unrealize) (widget);
+
+	folder_title_bar = E_SHELL_FOLDER_TITLE_BAR (widget);
+	priv = folder_title_bar->priv;
+
+	gtk_widget_destroy (priv->icon_widget);
+	priv->icon_widget = NULL;
+}
+
+
+/* GtkObject methods.  */
+
+static void
+destroy (GtkObject *object)
+{
+	EShellFolderTitleBar *folder_title_bar;
+	EShellFolderTitleBarPrivate *priv;
+
+	folder_title_bar = E_SHELL_FOLDER_TITLE_BAR (object);
+	priv = folder_title_bar->priv;
+
+	g_free (priv);
+
+	(* GTK_OBJECT_CLASS (parent_class)->destroy) (object);
+}
+
+
+static void
+class_init (EShellFolderTitleBarClass *klass)
+{
+	GtkObjectClass *object_class;
+	GtkWidgetClass *widget_class;
+
+	object_class = GTK_OBJECT_CLASS (klass);
+	object_class->destroy = destroy;
+
+	widget_class = GTK_WIDGET_CLASS (klass);
+	widget_class->realize   = realize;
+	widget_class->unrealize = unrealize;
+
+	parent_class = gtk_type_class (PARENT_TYPE);
+
+	signals[TITLE_CLICKED] = gtk_signal_new ("title_clicked",
+						 GTK_RUN_FIRST,
+						 object_class->type,
+						 GTK_SIGNAL_OFFSET (EShellFolderTitleBarClass, title_clicked),
+						 gtk_marshal_NONE__NONE,
+						 GTK_TYPE_NONE, 0);
+
+	gtk_object_class_add_signals (object_class, signals, LAST_SIGNAL);
+}
+
+static void
+init (EShellFolderTitleBar *shell_folder_title_bar)
+{
+	EShellFolderTitleBarPrivate *priv;
+
+	priv = g_new (EShellFolderTitleBarPrivate, 1);
+	priv->icon        = NULL;
+	priv->icon_widget = NULL;
+	priv->hbox        = NULL;
+	priv->label       = NULL;
+	priv->button_hbox = NULL;
+	priv->button      = NULL;
+
+	shell_folder_title_bar->priv = priv;
+}
+
+
+void
+e_shell_folder_title_bar_construct (EShellFolderTitleBar *folder_title_bar)
+{
+	EShellFolderTitleBarPrivate *priv;
+	GtkWidget *widget;
+
+	g_return_if_fail (folder_title_bar != NULL);
+	g_return_if_fail (E_IS_SHELL_FOLDER_TITLE_BAR (folder_title_bar));
+
+	priv = folder_title_bar->priv;
+	widget = GTK_WIDGET (folder_title_bar);
+
+	priv->label = e_clipped_label_new ("");
+	gtk_misc_set_padding (GTK_MISC (priv->label), 5, 0);
+	gtk_misc_set_alignment (GTK_MISC (priv->label), 0.0, 0.5);
+	gtk_widget_show (priv->label);
+
+#if 0
+	priv->button = gtk_button_new ();
+	gtk_button_set_relief (GTK_BUTTON (priv->button), GTK_RELIEF_NONE);
+	gtk_container_add (GTK_CONTAINER (priv->button), priv->label);
+	GTK_WIDGET_UNSET_FLAGS (priv->button, GTK_CAN_FOCUS);
+	gtk_widget_show (priv->button);
+#endif
+
+	priv->hbox = gtk_hbox_new (FALSE, 0);
+	gtk_box_pack_start (GTK_BOX (priv->hbox), priv->label, TRUE, TRUE, 0);
+
+	gtk_widget_show (priv->hbox);
+
+#if 0
+	gtk_signal_connect (GTK_OBJECT (priv->button), "clicked",
+			    GTK_SIGNAL_FUNC (title_button_clicked_cb), folder_title_bar);
+#endif
+
+	gtk_container_add (GTK_CONTAINER (folder_title_bar), priv->hbox);
+
+	setup_style (folder_title_bar);
+
+	e_shell_folder_title_bar_set_title (folder_title_bar, NULL);
+}
+
+GtkWidget *
+e_shell_folder_title_bar_new (void)
+{
+	EShellFolderTitleBar *new;
+
+	new = gtk_type_new (e_shell_folder_title_bar_get_type ());
+
+	e_shell_folder_title_bar_construct (new);
+
+	return GTK_WIDGET (new);
+}
+
+void
+e_shell_folder_title_bar_set_title (EShellFolderTitleBar *folder_title_bar,
+				    const char *title)
+{
+	EShellFolderTitleBarPrivate *priv;
+
+	g_return_if_fail (folder_title_bar != NULL);
+	g_return_if_fail (E_IS_SHELL_FOLDER_TITLE_BAR (folder_title_bar));
+
+	priv = folder_title_bar->priv;
+
+	if (title == NULL)
+		e_clipped_label_set_text (E_CLIPPED_LABEL (priv->label), _("(Untitled)"));
+	else
+		e_clipped_label_set_text (E_CLIPPED_LABEL (priv->label), title);
+
+	/* FIXME: There seems to be a bug in EClippedLabel, this is just a workaround.  */
+	gtk_widget_queue_draw (GTK_WIDGET (folder_title_bar));
+}
+
+void
+e_shell_folder_title_bar_set_icon (EShellFolderTitleBar *folder_title_bar,
+				   const GdkPixbuf *icon)
+{
+	EShellFolderTitleBarPrivate *priv;
+	GdkPixmap *pixmap;
+
+	g_return_if_fail (folder_title_bar != NULL);
+	g_return_if_fail (E_IS_SHELL_FOLDER_TITLE_BAR (folder_title_bar));
+
+	priv = folder_title_bar->priv;
+
+	pixmap = make_icon_pixmap (folder_title_bar, icon);
+
+	gtk_pixmap_set (GTK_PIXMAP (priv->icon_widget), pixmap, NULL);
+}
+
+
+E_MAKE_TYPE (e_shell_folder_title_bar, "EShellFolderTitleBar", EShellFolderTitleBar, class_init, init, PARENT_TYPE)