1 files changed, 81 insertions, 0 deletions
diff --git a/trunk/dimbola/plugins/rotate_plugin.py b/trunk/dimbola/plugins/rotate_plugin.py
new file mode 100644
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+++ b/trunk/dimbola/plugins/rotate_plugin.py
@@ -0,0 +1,81 @@
+# Copyright (C) 2009  Lars Wirzenius <liw@liw.fi>
+# 
+# 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 3 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, see <http://www.gnu.org/licenses/>.
+
+
+# This is necessary for running under Python 2.5, which we need to
+# do on Debian, for now.
+from __future__ import with_statement
+
+
+import os
+import shutil
+
+import gtk
+
+import dimbola
+
+
+class RotatePhotos(dimbola.Plugin):
+
+    '''Rotate selected photos in 90 degree steps.'''
+
+    def __init__(self, mwc):
+        self.mwc = mwc
+        
+    def enable(self): # pragma: no cover
+        self.mwc.add_to_menu('photo_menu', 'rotate_90_left_menuitem', 
+                             'Rotate photos left')
+        self.mwc.add_to_menu('photo_menu', 'rotate_90_right_menuitem', 
+                             'Rotate photos right')
+        
+    def disable(self): # pragma: no cover
+        self.mwc.remove_from_menu('file_menu', 'rotate_90_left_menuitem')
+        self.mwc.remove_from_menu('file_menu', 'rotate_90_right_menuitem')
+
+    def new_angle(self, old_angle, step):
+        '''Compute angle given old angle and number of steps.
+        
+        Positive steps are clockwise, negative steps are counter-clockwise.
+        
+        '''
+        angles = [0, 90, 180, 270]
+        try:
+            i = angles.index(old_angle)
+        except ValueError:
+            return 0
+        else:
+            return (angles + angles)[i - step]
+    
+    def rotate(self, step): # pragma: no cover
+        with self.mwc.db:
+            for photoid in self.mwc.grid.model.selected:
+                a, b, c, angle = self.mwc.db.get_basic_photo_metadata(photoid)
+                self.mwc.db.set_rotate(photoid, self.new_angle(angle, step))
+                new_value = self.new_angle(angle, step)
+        for photoid in self.mwc.grid.model.selected:
+            self.mwc.photo_meta_changed(photoid)
+        
+    def on_rotate_90_left_menuitem_activate(self, menuitem): #pragma: no cover
+        self.rotate(-1)
+
+    def on_rotate_90_right_menuitem_activate(self, menuitem): #pragma: no cover
+        self.rotate(1)
+
+    def menuitem_is_sensitive(self): # pragma: no cover
+        return self.mwc.grid.model.selected
+
+    rotate_90_left_menuitem_is_sensitive = menuitem_is_sensitive
+    rotate_90_right_menuitem_is_sensitive = menuitem_is_sensitive
+