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[gthumb/ext] [file tools] added rotate, mirro and flip commands

commit 01e7e933642ca1f26a90eca7c61f107e0553d782
Author: Paolo Bacchilega <paobac src gnome org>
Date:   Sun Sep 20 20:29:04 2009 +0200

    [file tools] added rotate, mirro and flip commands

 extensions/file_tools/Makefile.am                  |    8 ++
 extensions/file_tools/gth-file-tool-flip.c         |  106 ++++++++++++++++++++
 extensions/file_tools/gth-file-tool-flip.h         |   52 ++++++++++
 extensions/file_tools/gth-file-tool-mirror.c       |  106 ++++++++++++++++++++
 extensions/file_tools/gth-file-tool-mirror.h       |   52 ++++++++++
 extensions/file_tools/gth-file-tool-rotate-left.c  |  106 ++++++++++++++++++++
 extensions/file_tools/gth-file-tool-rotate-left.h  |   52 ++++++++++
 extensions/file_tools/gth-file-tool-rotate-right.c |  106 ++++++++++++++++++++
 extensions/file_tools/gth-file-tool-rotate-right.h |   52 ++++++++++
 extensions/file_tools/gth-file-tool-save-as.c      |    6 +-
 extensions/file_tools/main.c                       |   11 ++
 gthumb/gth-viewer-page.c                           |    7 +-
 12 files changed, 662 insertions(+), 2 deletions(-)
---
diff --git a/extensions/file_tools/Makefile.am b/extensions/file_tools/Makefile.am
index 376ef2e..0c9c28b 100644
--- a/extensions/file_tools/Makefile.am
+++ b/extensions/file_tools/Makefile.am
@@ -14,10 +14,18 @@ libfile_tools_la_SOURCES = 		\
 	gth-file-tool-enhance.h		\
 	gth-file-tool-equalize.c	\
 	gth-file-tool-equalize.h	\
+	gth-file-tool-flip.c		\
+	gth-file-tool-flip.h		\
+	gth-file-tool-mirror.c		\
+	gth-file-tool-mirror.h		\
 	gth-file-tool-negative.c	\
 	gth-file-tool-negative.h	\
 	gth-file-tool-redo.c		\
 	gth-file-tool-redo.h		\
+	gth-file-tool-rotate-left.c	\
+	gth-file-tool-rotate-left.h	\
+	gth-file-tool-rotate-right.c	\
+	gth-file-tool-rotate-right.h	\
 	gth-file-tool-save.c		\
 	gth-file-tool-save.h		\
 	gth-file-tool-save-as.c		\
diff --git a/extensions/file_tools/gth-file-tool-flip.c b/extensions/file_tools/gth-file-tool-flip.c
new file mode 100644
index 0000000..19f5e18
--- /dev/null
+++ b/extensions/file_tools/gth-file-tool-flip.c
@@ -0,0 +1,106 @@
+/* -*- Mode: C; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 8 -*- */
+
+/*
+ *  GThumb
+ *
+ *  Copyright (C) 2009 Free Software Foundation, 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 Street #330, Boston, MA 02111-1307, USA.
+ */
+
+#include <config.h>
+#include <math.h>
+#include <gthumb.h>
+#include <extensions/image_viewer/gth-image-viewer-page.h>
+#include "gth-file-tool-flip.h"
+
+
+static void
+gth_file_tool_flip_activate (GthFileTool *base)
+{
+	GtkWidget *window;
+	GtkWidget *viewer_page;
+	GtkWidget *viewer;
+	GdkPixbuf *src_pixbuf;
+	GdkPixbuf *dest_pixbuf;
+
+	window = gth_file_tool_get_window (base);
+	viewer_page = gth_browser_get_viewer_page (GTH_BROWSER (window));
+	if (! GTH_IS_IMAGE_VIEWER_PAGE (viewer_page))
+		return;
+
+	viewer = gth_image_viewer_page_get_image_viewer (GTH_IMAGE_VIEWER_PAGE (viewer_page));
+	src_pixbuf = gth_image_viewer_get_current_pixbuf (GTH_IMAGE_VIEWER (viewer));
+	if (src_pixbuf == NULL)
+		return;
+
+	dest_pixbuf = _gdk_pixbuf_transform (src_pixbuf, GTH_TRANSFORM_FLIP_V);
+	gth_image_viewer_page_set_pixbuf (GTH_IMAGE_VIEWER_PAGE (viewer_page), dest_pixbuf, TRUE);
+
+	g_object_unref (dest_pixbuf);
+}
+
+
+static void
+gth_file_tool_flip_update_sensitivity (GthFileTool *base)
+{
+	GtkWidget *window;
+	GtkWidget *viewer_page;
+
+	window = gth_file_tool_get_window (base);
+	viewer_page = gth_browser_get_viewer_page (GTH_BROWSER (window));
+	if (! GTH_IS_IMAGE_VIEWER_PAGE (viewer_page))
+		gtk_widget_set_sensitive (GTK_WIDGET (base), FALSE);
+	else
+		gtk_widget_set_sensitive (GTK_WIDGET (base), TRUE);
+}
+
+
+static void
+gth_file_tool_flip_instance_init (GthFileToolFlip *self)
+{
+	gth_file_tool_construct (GTH_FILE_TOOL (self), GTK_STOCK_EDIT /* FIXME GTH_STOCK_FLIP */, _("Flip"), NULL, FALSE);
+	/*gtk_widget_set_tooltip_text (GTK_WIDGET (self), _("Automatic white balance correction"));*/
+}
+
+
+static void
+gth_file_tool_flip_class_init (GthFileToolClass *klass)
+{
+	klass->update_sensitivity = gth_file_tool_flip_update_sensitivity;
+	klass->activate = gth_file_tool_flip_activate;
+}
+
+
+GType
+gth_file_tool_flip_get_type (void) {
+	static GType type_id = 0;
+	if (type_id == 0) {
+		static const GTypeInfo g_define_type_info = {
+			sizeof (GthFileToolFlipClass),
+			(GBaseInitFunc) NULL,
+			(GBaseFinalizeFunc) NULL,
+			(GClassInitFunc) gth_file_tool_flip_class_init,
+			(GClassFinalizeFunc) NULL,
+			NULL,
+			sizeof (GthFileToolFlip),
+			0,
+			(GInstanceInitFunc) gth_file_tool_flip_instance_init,
+			NULL
+		};
+		type_id = g_type_register_static (GTH_TYPE_FILE_TOOL, "GthFileToolFlip", &g_define_type_info, 0);
+	}
+	return type_id;
+}
diff --git a/extensions/file_tools/gth-file-tool-flip.h b/extensions/file_tools/gth-file-tool-flip.h
new file mode 100644
index 0000000..2fb92f4
--- /dev/null
+++ b/extensions/file_tools/gth-file-tool-flip.h
@@ -0,0 +1,52 @@
+/* -*- Mode: C; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 8 -*- */
+
+/*
+ *  GThumb
+ *
+ *  Copyright (C) 2009 Free Software Foundation, 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 Street #330, Boston, MA 02111-1307, USA.
+ */
+
+#ifndef GTH_FILE_TOOL_FLIP_H
+#define GTH_FILE_TOOL_FLIP_H
+
+#include <gthumb.h>
+
+G_BEGIN_DECLS
+
+#define GTH_TYPE_FILE_TOOL_FLIP (gth_file_tool_flip_get_type ())
+#define GTH_FILE_TOOL_FLIP(obj) (G_TYPE_CHECK_INSTANCE_CAST ((obj), GTH_TYPE_FILE_TOOL_FLIP, GthFileToolFlip))
+#define GTH_FILE_TOOL_FLIP_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST ((klass), GTH_TYPE_FILE_TOOL_FLIP, GthFileToolFlipClass))
+#define GTH_IS_FILE_TOOL_FLIP(obj) (G_TYPE_CHECK_INSTANCE_TYPE ((obj), GTH_TYPE_FILE_TOOL_FLIP))
+#define GTH_IS_FILE_TOOL_FLIP_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE ((klass), GTH_TYPE_FILE_TOOL_FLIP))
+#define GTH_FILE_TOOL_FLIP_GET_CLASS(obj) (G_TYPE_INSTANCE_GET_CLASS ((obj), GTH_TYPE_FILE_TOOL_FLIP, GthFileToolFlipClass))
+
+typedef struct _GthFileToolFlip GthFileToolFlip;
+typedef struct _GthFileToolFlipClass GthFileToolFlipClass;
+
+struct _GthFileToolFlip {
+	GthFileTool parent_instance;
+};
+
+struct _GthFileToolFlipClass {
+	GthFileToolClass parent_class;
+};
+
+GType  gth_file_tool_flip_get_type  (void);
+
+G_END_DECLS
+
+#endif /* GTH_FILE_TOOL_FLIP_H */
diff --git a/extensions/file_tools/gth-file-tool-mirror.c b/extensions/file_tools/gth-file-tool-mirror.c
new file mode 100644
index 0000000..633965c
--- /dev/null
+++ b/extensions/file_tools/gth-file-tool-mirror.c
@@ -0,0 +1,106 @@
+/* -*- Mode: C; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 8 -*- */
+
+/*
+ *  GThumb
+ *
+ *  Copyright (C) 2009 Free Software Foundation, 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 Street #330, Boston, MA 02111-1307, USA.
+ */
+
+#include <config.h>
+#include <math.h>
+#include <gthumb.h>
+#include <extensions/image_viewer/gth-image-viewer-page.h>
+#include "gth-file-tool-mirror.h"
+
+
+static void
+gth_file_tool_mirror_activate (GthFileTool *base)
+{
+	GtkWidget *window;
+	GtkWidget *viewer_page;
+	GtkWidget *viewer;
+	GdkPixbuf *src_pixbuf;
+	GdkPixbuf *dest_pixbuf;
+
+	window = gth_file_tool_get_window (base);
+	viewer_page = gth_browser_get_viewer_page (GTH_BROWSER (window));
+	if (! GTH_IS_IMAGE_VIEWER_PAGE (viewer_page))
+		return;
+
+	viewer = gth_image_viewer_page_get_image_viewer (GTH_IMAGE_VIEWER_PAGE (viewer_page));
+	src_pixbuf = gth_image_viewer_get_current_pixbuf (GTH_IMAGE_VIEWER (viewer));
+	if (src_pixbuf == NULL)
+		return;
+
+	dest_pixbuf = _gdk_pixbuf_transform (src_pixbuf, GTH_TRANSFORM_FLIP_H);
+	gth_image_viewer_page_set_pixbuf (GTH_IMAGE_VIEWER_PAGE (viewer_page), dest_pixbuf, TRUE);
+
+	g_object_unref (dest_pixbuf);
+}
+
+
+static void
+gth_file_tool_mirror_update_sensitivity (GthFileTool *base)
+{
+	GtkWidget *window;
+	GtkWidget *viewer_page;
+
+	window = gth_file_tool_get_window (base);
+	viewer_page = gth_browser_get_viewer_page (GTH_BROWSER (window));
+	if (! GTH_IS_IMAGE_VIEWER_PAGE (viewer_page))
+		gtk_widget_set_sensitive (GTK_WIDGET (base), FALSE);
+	else
+		gtk_widget_set_sensitive (GTK_WIDGET (base), TRUE);
+}
+
+
+static void
+gth_file_tool_mirror_instance_init (GthFileToolMirror *self)
+{
+	gth_file_tool_construct (GTH_FILE_TOOL (self), GTK_STOCK_EDIT /* FIXME GTH_STOCK_MIRROR */, _("Mirror"), NULL, TRUE);
+	/*gtk_widget_set_tooltip_text (GTK_WIDGET (self), _("Automatic white balance correction"));*/
+}
+
+
+static void
+gth_file_tool_mirror_class_init (GthFileToolClass *klass)
+{
+	klass->update_sensitivity = gth_file_tool_mirror_update_sensitivity;
+	klass->activate = gth_file_tool_mirror_activate;
+}
+
+
+GType
+gth_file_tool_mirror_get_type (void) {
+	static GType type_id = 0;
+	if (type_id == 0) {
+		static const GTypeInfo g_define_type_info = {
+			sizeof (GthFileToolMirrorClass),
+			(GBaseInitFunc) NULL,
+			(GBaseFinalizeFunc) NULL,
+			(GClassInitFunc) gth_file_tool_mirror_class_init,
+			(GClassFinalizeFunc) NULL,
+			NULL,
+			sizeof (GthFileToolMirror),
+			0,
+			(GInstanceInitFunc) gth_file_tool_mirror_instance_init,
+			NULL
+		};
+		type_id = g_type_register_static (GTH_TYPE_FILE_TOOL, "GthFileToolMirror", &g_define_type_info, 0);
+	}
+	return type_id;
+}
diff --git a/extensions/file_tools/gth-file-tool-mirror.h b/extensions/file_tools/gth-file-tool-mirror.h
new file mode 100644
index 0000000..23d6d91
--- /dev/null
+++ b/extensions/file_tools/gth-file-tool-mirror.h
@@ -0,0 +1,52 @@
+/* -*- Mode: C; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 8 -*- */
+
+/*
+ *  GThumb
+ *
+ *  Copyright (C) 2009 Free Software Foundation, 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 Street #330, Boston, MA 02111-1307, USA.
+ */
+
+#ifndef GTH_FILE_TOOL_MIRROR_H
+#define GTH_FILE_TOOL_MIRROR_H
+
+#include <gthumb.h>
+
+G_BEGIN_DECLS
+
+#define GTH_TYPE_FILE_TOOL_MIRROR (gth_file_tool_mirror_get_type ())
+#define GTH_FILE_TOOL_MIRROR(obj) (G_TYPE_CHECK_INSTANCE_CAST ((obj), GTH_TYPE_FILE_TOOL_MIRROR, GthFileToolMirror))
+#define GTH_FILE_TOOL_MIRROR_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST ((klass), GTH_TYPE_FILE_TOOL_MIRROR, GthFileToolMirrorClass))
+#define GTH_IS_FILE_TOOL_MIRROR(obj) (G_TYPE_CHECK_INSTANCE_TYPE ((obj), GTH_TYPE_FILE_TOOL_MIRROR))
+#define GTH_IS_FILE_TOOL_MIRROR_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE ((klass), GTH_TYPE_FILE_TOOL_MIRROR))
+#define GTH_FILE_TOOL_MIRROR_GET_CLASS(obj) (G_TYPE_INSTANCE_GET_CLASS ((obj), GTH_TYPE_FILE_TOOL_MIRROR, GthFileToolMirrorClass))
+
+typedef struct _GthFileToolMirror GthFileToolMirror;
+typedef struct _GthFileToolMirrorClass GthFileToolMirrorClass;
+
+struct _GthFileToolMirror {
+	GthFileTool parent_instance;
+};
+
+struct _GthFileToolMirrorClass {
+	GthFileToolClass parent_class;
+};
+
+GType  gth_file_tool_mirror_get_type  (void);
+
+G_END_DECLS
+
+#endif /* GTH_FILE_TOOL_MIRROR_H */
diff --git a/extensions/file_tools/gth-file-tool-rotate-left.c b/extensions/file_tools/gth-file-tool-rotate-left.c
new file mode 100644
index 0000000..30146de
--- /dev/null
+++ b/extensions/file_tools/gth-file-tool-rotate-left.c
@@ -0,0 +1,106 @@
+/* -*- Mode: C; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 8 -*- */
+
+/*
+ *  GThumb
+ *
+ *  Copyleft (C) 2009 Free Software Foundation, 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 Street #330, Boston, MA 02111-1307, USA.
+ */
+
+#include <config.h>
+#include <math.h>
+#include <gthumb.h>
+#include <extensions/image_viewer/gth-image-viewer-page.h>
+#include "gth-file-tool-rotate-left.h"
+
+
+static void
+gth_file_tool_rotate_left_activate (GthFileTool *base)
+{
+	GtkWidget *window;
+	GtkWidget *viewer_page;
+	GtkWidget *viewer;
+	GdkPixbuf *src_pixbuf;
+	GdkPixbuf *dest_pixbuf;
+
+	window = gth_file_tool_get_window (base);
+	viewer_page = gth_browser_get_viewer_page (GTH_BROWSER (window));
+	if (! GTH_IS_IMAGE_VIEWER_PAGE (viewer_page))
+		return;
+
+	viewer = gth_image_viewer_page_get_image_viewer (GTH_IMAGE_VIEWER_PAGE (viewer_page));
+	src_pixbuf = gth_image_viewer_get_current_pixbuf (GTH_IMAGE_VIEWER (viewer));
+	if (src_pixbuf == NULL)
+		return;
+
+	dest_pixbuf = _gdk_pixbuf_transform (src_pixbuf, GTH_TRANSFORM_ROTATE_270);
+	gth_image_viewer_page_set_pixbuf (GTH_IMAGE_VIEWER_PAGE (viewer_page), dest_pixbuf, TRUE);
+
+	g_object_unref (dest_pixbuf);
+}
+
+
+static void
+gth_file_tool_rotate_left_update_sensitivity (GthFileTool *base)
+{
+	GtkWidget *window;
+	GtkWidget *viewer_page;
+
+	window = gth_file_tool_get_window (base);
+	viewer_page = gth_browser_get_viewer_page (GTH_BROWSER (window));
+	if (! GTH_IS_IMAGE_VIEWER_PAGE (viewer_page))
+		gtk_widget_set_sensitive (GTK_WIDGET (base), FALSE);
+	else
+		gtk_widget_set_sensitive (GTK_WIDGET (base), TRUE);
+}
+
+
+static void
+gth_file_tool_rotate_left_instance_init (GthFileToolRotateLeft *self)
+{
+	gth_file_tool_construct (GTH_FILE_TOOL (self), GTK_STOCK_EDIT /* FIXME GTH_STOCK_ROTATE_LEFT */, _("Rotate Left"), NULL, FALSE);
+	/*gtk_widget_set_tooltip_text (GTK_WIDGET (self), _("Automatic white balance correction"));*/
+}
+
+
+static void
+gth_file_tool_rotate_left_class_init (GthFileToolClass *klass)
+{
+	klass->update_sensitivity = gth_file_tool_rotate_left_update_sensitivity;
+	klass->activate = gth_file_tool_rotate_left_activate;
+}
+
+
+GType
+gth_file_tool_rotate_left_get_type (void) {
+	static GType type_id = 0;
+	if (type_id == 0) {
+		static const GTypeInfo g_define_type_info = {
+			sizeof (GthFileToolRotateLeftClass),
+			(GBaseInitFunc) NULL,
+			(GBaseFinalizeFunc) NULL,
+			(GClassInitFunc) gth_file_tool_rotate_left_class_init,
+			(GClassFinalizeFunc) NULL,
+			NULL,
+			sizeof (GthFileToolRotateLeft),
+			0,
+			(GInstanceInitFunc) gth_file_tool_rotate_left_instance_init,
+			NULL
+		};
+		type_id = g_type_register_static (GTH_TYPE_FILE_TOOL, "GthFileToolRotateLeft", &g_define_type_info, 0);
+	}
+	return type_id;
+}
diff --git a/extensions/file_tools/gth-file-tool-rotate-left.h b/extensions/file_tools/gth-file-tool-rotate-left.h
new file mode 100644
index 0000000..7e1ff01
--- /dev/null
+++ b/extensions/file_tools/gth-file-tool-rotate-left.h
@@ -0,0 +1,52 @@
+/* -*- Mode: C; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 8 -*- */
+
+/*
+ *  GThumb
+ *
+ *  Copyleft (C) 2009 Free Software Foundation, 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 Street #330, Boston, MA 02111-1307, USA.
+ */
+
+#ifndef GTH_FILE_TOOL_ROTATE_LEFT_H
+#define GTH_FILE_TOOL_ROTATE_LEFT_H
+
+#include <gthumb.h>
+
+G_BEGIN_DECLS
+
+#define GTH_TYPE_FILE_TOOL_ROTATE_LEFT (gth_file_tool_rotate_left_get_type ())
+#define GTH_FILE_TOOL_ROTATE_LEFT(obj) (G_TYPE_CHECK_INSTANCE_CAST ((obj), GTH_TYPE_FILE_TOOL_ROTATE_LEFT, GthFileToolRotateLeft))
+#define GTH_FILE_TOOL_ROTATE_LEFT_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST ((klass), GTH_TYPE_FILE_TOOL_ROTATE_LEFT, GthFileToolRotateLeftClass))
+#define GTH_IS_FILE_TOOL_ROTATE_LEFT(obj) (G_TYPE_CHECK_INSTANCE_TYPE ((obj), GTH_TYPE_FILE_TOOL_ROTATE_LEFT))
+#define GTH_IS_FILE_TOOL_ROTATE_LEFT_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE ((klass), GTH_TYPE_FILE_TOOL_ROTATE_LEFT))
+#define GTH_FILE_TOOL_ROTATE_LEFT_GET_CLASS(obj) (G_TYPE_INSTANCE_GET_CLASS ((obj), GTH_TYPE_FILE_TOOL_ROTATE_LEFT, GthFileToolRotateLeftClass))
+
+typedef struct _GthFileToolRotateLeft GthFileToolRotateLeft;
+typedef struct _GthFileToolRotateLeftClass GthFileToolRotateLeftClass;
+
+struct _GthFileToolRotateLeft {
+	GthFileTool parent_instance;
+};
+
+struct _GthFileToolRotateLeftClass {
+	GthFileToolClass parent_class;
+};
+
+GType  gth_file_tool_rotate_left_get_type  (void);
+
+G_END_DECLS
+
+#endif /* GTH_FILE_TOOL_ROTATE_LEFT_H */
diff --git a/extensions/file_tools/gth-file-tool-rotate-right.c b/extensions/file_tools/gth-file-tool-rotate-right.c
new file mode 100644
index 0000000..45e6cd6
--- /dev/null
+++ b/extensions/file_tools/gth-file-tool-rotate-right.c
@@ -0,0 +1,106 @@
+/* -*- Mode: C; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 8 -*- */
+
+/*
+ *  GThumb
+ *
+ *  Copyright (C) 2009 Free Software Foundation, 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 Street #330, Boston, MA 02111-1307, USA.
+ */
+
+#include <config.h>
+#include <math.h>
+#include <gthumb.h>
+#include <extensions/image_viewer/gth-image-viewer-page.h>
+#include "gth-file-tool-rotate-right.h"
+
+
+static void
+gth_file_tool_rotate_right_activate (GthFileTool *base)
+{
+	GtkWidget *window;
+	GtkWidget *viewer_page;
+	GtkWidget *viewer;
+	GdkPixbuf *src_pixbuf;
+	GdkPixbuf *dest_pixbuf;
+
+	window = gth_file_tool_get_window (base);
+	viewer_page = gth_browser_get_viewer_page (GTH_BROWSER (window));
+	if (! GTH_IS_IMAGE_VIEWER_PAGE (viewer_page))
+		return;
+
+	viewer = gth_image_viewer_page_get_image_viewer (GTH_IMAGE_VIEWER_PAGE (viewer_page));
+	src_pixbuf = gth_image_viewer_get_current_pixbuf (GTH_IMAGE_VIEWER (viewer));
+	if (src_pixbuf == NULL)
+		return;
+
+	dest_pixbuf = _gdk_pixbuf_transform (src_pixbuf, GTH_TRANSFORM_ROTATE_90);
+	gth_image_viewer_page_set_pixbuf (GTH_IMAGE_VIEWER_PAGE (viewer_page), dest_pixbuf, TRUE);
+
+	g_object_unref (dest_pixbuf);
+}
+
+
+static void
+gth_file_tool_rotate_right_update_sensitivity (GthFileTool *base)
+{
+	GtkWidget *window;
+	GtkWidget *viewer_page;
+
+	window = gth_file_tool_get_window (base);
+	viewer_page = gth_browser_get_viewer_page (GTH_BROWSER (window));
+	if (! GTH_IS_IMAGE_VIEWER_PAGE (viewer_page))
+		gtk_widget_set_sensitive (GTK_WIDGET (base), FALSE);
+	else
+		gtk_widget_set_sensitive (GTK_WIDGET (base), TRUE);
+}
+
+
+static void
+gth_file_tool_rotate_right_instance_init (GthFileToolRotateRight *self)
+{
+	gth_file_tool_construct (GTH_FILE_TOOL (self), GTK_STOCK_EDIT /* FIXME GTH_STOCK_ROTATE_RIGHT */, _("Rotate Right"), NULL, FALSE);
+	/*gtk_widget_set_tooltip_text (GTK_WIDGET (self), _("Automatic white balance correction"));*/
+}
+
+
+static void
+gth_file_tool_rotate_right_class_init (GthFileToolClass *klass)
+{
+	klass->update_sensitivity = gth_file_tool_rotate_right_update_sensitivity;
+	klass->activate = gth_file_tool_rotate_right_activate;
+}
+
+
+GType
+gth_file_tool_rotate_right_get_type (void) {
+	static GType type_id = 0;
+	if (type_id == 0) {
+		static const GTypeInfo g_define_type_info = {
+			sizeof (GthFileToolRotateRightClass),
+			(GBaseInitFunc) NULL,
+			(GBaseFinalizeFunc) NULL,
+			(GClassInitFunc) gth_file_tool_rotate_right_class_init,
+			(GClassFinalizeFunc) NULL,
+			NULL,
+			sizeof (GthFileToolRotateRight),
+			0,
+			(GInstanceInitFunc) gth_file_tool_rotate_right_instance_init,
+			NULL
+		};
+		type_id = g_type_register_static (GTH_TYPE_FILE_TOOL, "GthFileToolRotateRight", &g_define_type_info, 0);
+	}
+	return type_id;
+}
diff --git a/extensions/file_tools/gth-file-tool-rotate-right.h b/extensions/file_tools/gth-file-tool-rotate-right.h
new file mode 100644
index 0000000..9f45431
--- /dev/null
+++ b/extensions/file_tools/gth-file-tool-rotate-right.h
@@ -0,0 +1,52 @@
+/* -*- Mode: C; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 8 -*- */
+
+/*
+ *  GThumb
+ *
+ *  Copyright (C) 2009 Free Software Foundation, 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 Street #330, Boston, MA 02111-1307, USA.
+ */
+
+#ifndef GTH_FILE_TOOL_ROTATE_RIGHT_H
+#define GTH_FILE_TOOL_ROTATE_RIGHT_H
+
+#include <gthumb.h>
+
+G_BEGIN_DECLS
+
+#define GTH_TYPE_FILE_TOOL_ROTATE_RIGHT (gth_file_tool_rotate_right_get_type ())
+#define GTH_FILE_TOOL_ROTATE_RIGHT(obj) (G_TYPE_CHECK_INSTANCE_CAST ((obj), GTH_TYPE_FILE_TOOL_ROTATE_RIGHT, GthFileToolRotateRight))
+#define GTH_FILE_TOOL_ROTATE_RIGHT_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST ((klass), GTH_TYPE_FILE_TOOL_ROTATE_RIGHT, GthFileToolRotateRightClass))
+#define GTH_IS_FILE_TOOL_ROTATE_RIGHT(obj) (G_TYPE_CHECK_INSTANCE_TYPE ((obj), GTH_TYPE_FILE_TOOL_ROTATE_RIGHT))
+#define GTH_IS_FILE_TOOL_ROTATE_RIGHT_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE ((klass), GTH_TYPE_FILE_TOOL_ROTATE_RIGHT))
+#define GTH_FILE_TOOL_ROTATE_RIGHT_GET_CLASS(obj) (G_TYPE_INSTANCE_GET_CLASS ((obj), GTH_TYPE_FILE_TOOL_ROTATE_RIGHT, GthFileToolRotateRightClass))
+
+typedef struct _GthFileToolRotateRight GthFileToolRotateRight;
+typedef struct _GthFileToolRotateRightClass GthFileToolRotateRightClass;
+
+struct _GthFileToolRotateRight {
+	GthFileTool parent_instance;
+};
+
+struct _GthFileToolRotateRightClass {
+	GthFileToolClass parent_class;
+};
+
+GType  gth_file_tool_rotate_right_get_type  (void);
+
+G_END_DECLS
+
+#endif /* GTH_FILE_TOOL_ROTATE_RIGHT_H */
diff --git a/extensions/file_tools/gth-file-tool-save-as.c b/extensions/file_tools/gth-file-tool-save-as.c
index 7413a8c..92d17d5 100644
--- a/extensions/file_tools/gth-file-tool-save-as.c
+++ b/extensions/file_tools/gth-file-tool-save-as.c
@@ -29,9 +29,13 @@ static void
 gth_file_tool_save_as_update_sensitivity (GthFileTool *base)
 {
 	GtkWidget *window;
+	gboolean   can_save;
 
 	window = gth_file_tool_get_window (base);
-	gtk_widget_set_sensitive (GTK_WIDGET (base), gth_browser_get_current_file (GTH_BROWSER (window)) != NULL);
+
+	can_save = gth_viewer_page_can_save (gth_browser_get_viewer_page (GTH_BROWSER (window)));
+	can_save = can_save && (gth_browser_get_current_file (GTH_BROWSER (window)) != NULL);
+	gtk_widget_set_sensitive (GTK_WIDGET (base), can_save);
 }
 
 
diff --git a/extensions/file_tools/main.c b/extensions/file_tools/main.c
index 351b6eb..e32dd25 100644
--- a/extensions/file_tools/main.c
+++ b/extensions/file_tools/main.c
@@ -29,8 +29,12 @@
 #include "gth-file-tool-desaturate.h"
 #include "gth-file-tool-enhance.h"
 #include "gth-file-tool-equalize.h"
+#include "gth-file-tool-flip.h"
+#include "gth-file-tool-mirror.h"
 #include "gth-file-tool-negative.h"
 #include "gth-file-tool-redo.h"
+#include "gth-file-tool-rotate-left.h"
+#include "gth-file-tool-rotate-right.h"
 #include "gth-file-tool-save.h"
 #include "gth-file-tool-save-as.h"
 #include "gth-file-tool-undo.h"
@@ -43,11 +47,18 @@ gthumb_extension_activate (void)
 	gth_main_register_type ("file-tools", GTH_TYPE_FILE_TOOL_SAVE_AS);
 	gth_main_register_type ("file-tools", GTH_TYPE_FILE_TOOL_UNDO);
 	gth_main_register_type ("file-tools", GTH_TYPE_FILE_TOOL_REDO);
+
 	gth_main_register_type ("file-tools", GTH_TYPE_FILE_TOOL_ENHANCE);
 	gth_main_register_type ("file-tools", GTH_TYPE_FILE_TOOL_ADJUST_COLORS);
 	gth_main_register_type ("file-tools", GTH_TYPE_FILE_TOOL_EQUALIZE);
 	gth_main_register_type ("file-tools", GTH_TYPE_FILE_TOOL_DESATURATE);
 	gth_main_register_type ("file-tools", GTH_TYPE_FILE_TOOL_NEGATIVE);
+
+	gth_main_register_type ("file-tools", GTH_TYPE_FILE_TOOL_MIRROR);
+	gth_main_register_type ("file-tools", GTH_TYPE_FILE_TOOL_FLIP);
+	gth_main_register_type ("file-tools", GTH_TYPE_FILE_TOOL_ROTATE_RIGHT);
+	gth_main_register_type ("file-tools", GTH_TYPE_FILE_TOOL_ROTATE_LEFT);
+
 	gth_main_register_type ("file-tools", GTH_TYPE_FILE_TOOL_CROP);
 }
 
diff --git a/gthumb/gth-viewer-page.c b/gthumb/gth-viewer-page.c
index 5176d39..1e738e8 100644
--- a/gthumb/gth-viewer-page.c
+++ b/gthumb/gth-viewer-page.c
@@ -118,7 +118,12 @@ gth_viewer_page_update_sensitivity (GthViewerPage *self)
 gboolean
 gth_viewer_page_can_save (GthViewerPage *self)
 {
-	return GTH_VIEWER_PAGE_GET_INTERFACE (self)->can_save (self);
+	if (self == NULL)
+		return FALSE;
+	if (GTH_VIEWER_PAGE_GET_INTERFACE (self)->can_save != NULL)
+		return GTH_VIEWER_PAGE_GET_INTERFACE (self)->can_save (self);
+	else
+		return FALSE;
 }
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