From 0554f844bc42a1525ba1792ea8c5a194b08c226f Mon Sep 17 00:00:00 2001
From: Manuel Quiñones <manuq@laptop.org>
Date: Thu, 16 May 2013 18:43:13 +0000
Subject: Revert changes done for the scrollbars in a5f346a1

---
diff --git a/ImageView.py b/ImageView.py
index 8b81ca9..be3a616 100644
--- a/ImageView.py
+++ b/ImageView.py
@@ -81,7 +81,7 @@ class ImageViewer(Gtk.DrawingArea):
         self.queue_draw()
 
     def _center_target_point(self):
-        alloc = self.get_parent().get_allocation()
+        alloc = self.get_allocation()
         self._target_point = (alloc.width / 2, alloc.height / 2)
 
     def _center_anchor_point(self):
@@ -92,7 +92,7 @@ class ImageViewer(Gtk.DrawingArea):
         # If at the current size the image surface is smaller than the
         # available space, center it on the canvas.
 
-        alloc = self.get_parent().get_allocation()
+        alloc = self.get_allocation()
 
         scaled_width = self._surface.get_width() * self._zoom
         scaled_height = self._surface.get_height() * self._zoom
@@ -102,18 +102,11 @@ class ImageViewer(Gtk.DrawingArea):
             self._center_anchor_point()
             self.queue_draw()
 
-    def _do_set_zoom(self, zoom):
-        self._zoom = zoom
-
-        # Update size and scroll window
-        width = int(self._surface.get_width() * self._zoom)
-        height = int(self._surface.get_height() * self._zoom)
-        self.set_size_request(width, height)
-
     def set_zoom(self, zoom):
         if zoom < ZOOM_MIN or zoom > ZOOM_MAX:
             return
-        self._do_set_zoom(zoom)
+        self._zoom = zoom
+        self.queue_draw()
 
     def get_zoom(self):
         return self._zoom
@@ -127,39 +120,42 @@ class ImageViewer(Gtk.DrawingArea):
     def zoom_in(self):
         if not self.can_zoom_in():
             return
-        self._do_set_zoom(self._zoom + ZOOM_STEP)
+        self._zoom += ZOOM_STEP
+        self.queue_draw()
 
     def zoom_out(self):
         if not self.can_zoom_out():
             return
-        self._do_set_zoom(self._zoom - ZOOM_STEP)
+        self._zoom -= ZOOM_MIN
+
         self._center_if_small()
+        self.queue_draw()
 
     def zoom_to_fit(self):
         # This tries to figure out a best fit model
         # If the image can fit in, we show it in 1:1,
         # in any other case we show it in a fit to screen way
 
-        alloc = self.get_parent().get_allocation()
+        alloc = self.get_allocation()
 
         surface_width = self._surface.get_width()
         surface_height = self._surface.get_height()
 
-        zoom = None
         if alloc.width < surface_width or alloc.height < surface_height:
             # Image is larger than allocated size
-            zoom = min(alloc.width * 1.0 / surface_width,
-                       alloc.height * 1.0 / surface_height)
+            self._zoom = min(alloc.width * 1.0 / surface_width,
+                             alloc.height * 1.0 / surface_height)
         else:
-            zoom = 1.0
-        self._do_set_zoom(zoom)
+            self._zoom = 1.0
+
         self._center_target_point()
         self._center_anchor_point()
         self.queue_draw()
 
     def zoom_original(self):
-        self._do_set_zoom(1)
+        self._zoom = 1
         self._center_if_small()
+        self.queue_draw()
 
     def start_dragtouch(self, coords):
         self._in_dragtouch = True
@@ -167,7 +163,7 @@ class ImageViewer(Gtk.DrawingArea):
         prev_target_point = self._target_point
 
         # Set target point to the relative coordinates of this view.
-        alloc = self.get_parent().get_allocation()
+        alloc = self.get_allocation()
         self._target_point = (coords[1], coords[2])
 
         # Calculate the new anchor point.
@@ -214,7 +210,7 @@ class ImageViewer(Gtk.DrawingArea):
         prev_target_point = self._target_point
 
         # Set target point to the relative coordinates of this view.
-        alloc = self.get_parent().get_allocation()
+        alloc = self.get_allocation()
         self._target_point = (center[1] - alloc.x, center[2] - alloc.y)
 
         # Calculate the new anchor point.
@@ -247,17 +243,17 @@ class ImageViewer(Gtk.DrawingArea):
         self._in_zoomtouch = False
 
         # Apply zoom
-        zoom = self._zoom * self._zoomtouch_scale
+        self._zoom = self._zoom * self._zoomtouch_scale
         self._zoomtouch_scale = 1
 
         # Restrict zoom values
-        if zoom < ZOOM_MIN:
-            zoom = ZOOM_MIN
-        elif zoom > ZOOM_MAX:
-            zoom = ZOOM_MAX
+        if self._zoom < ZOOM_MIN:
+            self._zoom = ZOOM_MIN
+        elif self._zoom > ZOOM_MAX:
+            self._zoom = ZOOM_MAX
 
-        self._do_set_zoom(zoom)
         self._center_if_small()
+        self.queue_draw()
 
     def rotate_anticlockwise(self):
         self._surface = _rotate_surface(self._surface, -1)
@@ -305,7 +301,6 @@ class ImageViewer(Gtk.DrawingArea):
             self._center_anchor_point()
 
         ctx.translate(*self._target_point)
-
         zoom_absolute = self._zoom * self._zoomtouch_scale
         ctx.scale(zoom_absolute, zoom_absolute)
 
--
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