From ab19f676e0f1b60a6c6c92da889da8b9aa997e5a Mon Sep 17 00:00:00 2001
From: Alexandre Antonino Gonçalves Martinazzo <alexandremartinazzo@gmail.com>
Date: Wed, 08 Aug 2007 14:09:03 +0000
Subject: Minor changes when using signals 'undo' and 'redo' in module Area

Added a new signal: 'action-saved'. It is used in Area.enableUndo
---
diff --git a/Area.py b/Area.py
index 879ca13..a2f8f06 100644
--- a/Area.py
+++ b/Area.py
@@ -72,6 +72,7 @@ class Area(gtk.DrawingArea):
     __gsignals__ = {
         'undo' : (gobject.SIGNAL_ACTION, gobject.TYPE_NONE, ([])),
         'redo' : (gobject.SIGNAL_ACTION, gobject.TYPE_NONE, ([])),
+        'action-saved' : (gobject.SIGNAL_ACTION, gobject.TYPE_NONE, ([])),
         #TODO: these signals still not used.
 #         'copy' : (gobject.SIGNAL_ACTION, gobject.TYPE_NONE, ([])),
 #         'selected' : (gobject.SIGNAL_ACTION, gobject.TYPE_NONE, ([])),
@@ -488,7 +489,7 @@ class Area(gtk.DrawingArea):
 #         if self.redo_times <= 1:
 #             self.emit('redo')
         self.emit('undo')
-        self.emit('redo')
+        #self.emit('redo')
         
     def redo(self):
         """Redo the last undo operation.
@@ -519,7 +520,7 @@ class Area(gtk.DrawingArea):
 #             self.emit('undo')
 #         if self.redo_times <= 1:
 #             self.emit('redo')
-        self.emit('undo')
+        #self.emit('undo')
         self.emit('redo')
             
     def enableUndo(self,widget):
@@ -556,8 +557,9 @@ class Area(gtk.DrawingArea):
 #             self.emit('undo')
 #         if self.redo_times <= 1:
 #             self.emit('redo')
-        self.emit('undo')
-        self.emit('redo')
+        #self.emit('undo')
+        #self.emit('redo')
+        self.emit('action-saved')
         
         
     def copy(self):
diff --git a/OficinaActivity.py b/OficinaActivity.py
index 4169554..cf8b56e 100644
--- a/OficinaActivity.py
+++ b/OficinaActivity.py
@@ -149,5 +149,6 @@ class OficinaActivity(activity.Activity):
         width, height = self._area.window.get_size()
         pixbuf = gtk.gdk.Pixbuf(gtk.gdk.COLORSPACE_RGB, False, 8, width, height)
         pixbuf.get_from_drawable(self._area.pixmap, gtk.gdk.colormap_get_system(), 0, 0, 0, 0, -1, -1)
+        self.metadata['mime_type'] = 'image/png'
         pixbuf.save(file_path, 'png', {})   
 
diff --git a/activity/activity.info b/activity/activity.info
index d30d8c6..98824fc 100644
--- a/activity/activity.info
+++ b/activity/activity.info
@@ -1,7 +1,7 @@
 [Activity]
 name = Paint
-activity_version = 1
+activity_version = 4
 service_name = org.laptop.Oficina
 icon = activity-rgbpaint
 class = OficinaActivity.OficinaActivity
-
+mime_types = image/svg+xml; image/svg; image/svg-xml; image/vnd.adobe.svg+xml; text/xml-svg; image/png; image/jpeg; image/gif; image/x-icon; image/x-ico; application/x-navi-animation; image/x-cmu-raster; image/x-sun-raster; image/x-xpixmap; image/tiff; image/x-portable-anymap; image/x-portable-bitmap; image/x-portable-graymap; image/x-portable-pixmap; image/bmp; image/x-bmp; image/x-MS-bmp; image/vnd.wap.wbmp; image/x-xbitmap; image/x-tga; image/x-pcx; image/x-wmf
diff --git a/toolbox.py b/toolbox.py
index aae342a..300102c 100644
--- a/toolbox.py
+++ b/toolbox.py
@@ -110,8 +110,9 @@ class DrawEditToolbar(EditToolbar):
         self.copy.connect('clicked', self._copy_cb)
         self.paste.connect('clicked', self._paste_cb)
         
-        self._activity._area.connect('undo', self._enable_undo_button_cb)
-        self._activity._area.connect('redo', self._enable_redo_button_cb)
+        self._activity._area.connect('undo', self._on_signal_undo_cb)
+        self._activity._area.connect('redo', self._on_signal_redo_cb)
+        self._activity._area.connect('action-saved', self._on_signal_action_saved_cb)
         
     def _undo_cb(self, widget, data=None):
         self._activity._area.undo()
@@ -125,12 +126,21 @@ class DrawEditToolbar(EditToolbar):
     def _paste_cb(self, widget, data=None):
         self._activity._area.past()
         
-    def _enable_undo_button_cb(self, widget, data=None):
-        self.undo.set_sensitive( self._activity._area.can_undo() )
+    def _on_signal_undo_cb(self, widget, data=None):
+        self._verify_sensitive_buttons()
         
-    def _enable_redo_button_cb(self, widget, data=None):
-        self.redo.set_sensitive( self._activity._area.can_redo() )
+    def _on_signal_redo_cb(self, widget, data=None):
+        self._verify_sensitive_buttons()
+        
+    def _on_signal_action_saved_cb(self, widget, data=None):
+        self._verify_sensitive_buttons()
         
+    def _verify_sensitive_buttons(self):
+        self.undo.set_sensitive( self._activity._area.can_undo() )
+        self.redo.set_sensitive( self._activity._area.can_redo() )
+        #TODO: it is not possible to verify these yet.
+        #self.copy.set_sensitive( self._activity._area.can_copy() )
+        #self.paste.set_sensitive( self._activity._area.can_paste() )
 
 class ToolsToolbar(gtk.Toolbar):
 
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