diff --git a/src/app/context.cpp b/src/app/context.cpp
index f15ff1222..7a818d5b9 100644
--- a/src/app/context.cpp
+++ b/src/app/context.cpp
@@ -1,5 +1,5 @@
 /* Aseprite
- * Copyright (C) 2001-2013  David Capello
+ * Copyright (C) 2001-2014  David Capello
  *
  * 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
@@ -30,6 +30,7 @@
 #include "app/settings/settings.h"
 
 #include <algorithm>
+#include <stdexcept>
 
 namespace app {
 
diff --git a/src/app/document.cpp b/src/app/document.cpp
index 220edddf4..9ac0f9100 100644
--- a/src/app/document.cpp
+++ b/src/app/document.cpp
@@ -34,9 +34,9 @@
 #include "base/mutex.h"
 #include "base/scoped_lock.h"
 #include "base/unique_ptr.h"
+#include "doc/cel.h"
 #include "doc/document_event.h"
 #include "doc/document_observer.h"
-#include "doc/cel.h"
 #include "doc/layer.h"
 #include "doc/mask.h"
 #include "doc/palette.h"
@@ -139,6 +139,12 @@ void Document::notifyCelCopied(Layer* fromLayer, FrameNumber fromFrame, Layer* t
   notifyObservers<doc::DocumentEvent&>(&doc::DocumentObserver::onCelCopied, ev);
 }
 
+void Document::notifySelectionChanged()
+{
+  doc::DocumentEvent ev(this);
+  notifyObservers<doc::DocumentEvent&>(&doc::DocumentObserver::onSelectionChanged, ev);
+}
+
 bool Document::isModified() const
 {
   return !m_undo->isSavedState();
@@ -210,6 +216,9 @@ void Document::generateMaskBoundaries(Mask* mask)
       m_bound.seg[c].y2 += mask->bounds().y;
     }
   }
+
+  // TODO move this to the exact place where selection is modified.
+  notifySelectionChanged();
 }
 
 //////////////////////////////////////////////////////////////////////
diff --git a/src/app/document.h b/src/app/document.h
index ad3940ebc..7bd27f3ce 100644
--- a/src/app/document.h
+++ b/src/app/document.h
@@ -93,6 +93,7 @@ namespace app {
     void notifyLayerMergedDown(Layer* srcLayer, Layer* targetLayer);
     void notifyCelMoved(Layer* fromLayer, FrameNumber fromFrame, Layer* toLayer, FrameNumber toFrame);
     void notifyCelCopied(Layer* fromLayer, FrameNumber fromFrame, Layer* toLayer, FrameNumber toFrame);
+    void notifySelectionChanged();
 
     //////////////////////////////////////////////////////////////////////
     // File related properties
diff --git a/src/app/document_exporter.cpp b/src/app/document_exporter.cpp
index ca1a153d9..11ec84604 100644
--- a/src/app/document_exporter.cpp
+++ b/src/app/document_exporter.cpp
@@ -203,8 +203,8 @@ DocumentExporter::DocumentExporter()
  , m_textureWidth(0)
  , m_textureHeight(0)
  , m_texturePack(false)
- , m_scaleMode(DefaultScaleMode)
  , m_scale(1.0)
+ , m_scaleMode(DefaultScaleMode)
 {
 }
 
diff --git a/src/app/ui/editor/editor.cpp b/src/app/ui/editor/editor.cpp
index 2e1399895..b26720ab9 100644
--- a/src/app/ui/editor/editor.cpp
+++ b/src/app/ui/editor/editor.cpp
@@ -966,7 +966,8 @@ Rect Editor::getVisibleSpriteBounds()
   screenToEditor(vp.x, vp.y, &x1, &y1);
   screenToEditor(vp.x+vp.w-1, vp.y+vp.h-1, &x2, &y2);
 
-  return Rect(x1, y1, x2-x1+1, y2-y1+1);
+  return Rect(0, 0, m_sprite->width(), m_sprite->height())
+    .createIntersect(Rect(x1, y1, x2-x1+1, y2-y1+1));
 }
 
 // Changes the scroll to see the given point as the center of the editor.
@@ -1361,10 +1362,6 @@ void Editor::pasteImage(const Image* image, int x, int y)
 
   // Check bounds where the image will be pasted.
   {
-    // First we limit the image inside the sprite's bounds.
-    x = MID(0, x, sprite->width() - image->width());
-    y = MID(0, y, sprite->height() - image->height());
-
     // Then we check if the image will be visible by the user.
     Rect visibleBounds = getVisibleSpriteBounds();
     x = MID(visibleBounds.x-image->width(), x, visibleBounds.x+visibleBounds.w-1);
@@ -1381,6 +1378,10 @@ void Editor::pasteImage(const Image* image, int x, int y)
       x = visibleBounds.x + visibleBounds.w/2 - image->width()/2;
       y = visibleBounds.y + visibleBounds.h/2 - image->height()/2;
     }
+
+    // We limit the image inside the sprite's bounds.
+    x = MID(0, x, sprite->width() - image->width());
+    y = MID(0, y, sprite->height() - image->height());
   }
 
   PixelsMovementPtr pixelsMovement(
diff --git a/src/app/ui/timeline.cpp b/src/app/ui/timeline.cpp
index af56898b1..087dbe72c 100644
--- a/src/app/ui/timeline.cpp
+++ b/src/app/ui/timeline.cpp
@@ -967,6 +967,14 @@ void Timeline::onRemoveFrame(doc::DocumentEvent& ev)
   invalidate();
 }
 
+void Timeline::onSelectionChanged(doc::DocumentEvent& ev)
+{
+  m_range.disableRange();
+
+  clearClipboardRange();
+  invalidate();
+}
+
 void Timeline::onAfterFrameChanged(Editor* editor)
 {
   setFrame(editor->frame());
diff --git a/src/app/ui/timeline.h b/src/app/ui/timeline.h
index 9cbfccab3..839a85d24 100644
--- a/src/app/ui/timeline.h
+++ b/src/app/ui/timeline.h
@@ -108,6 +108,7 @@ namespace app {
     void onAfterRemoveLayer(doc::DocumentEvent& ev) override;
     void onAddFrame(doc::DocumentEvent& ev) override;
     void onRemoveFrame(doc::DocumentEvent& ev) override;
+    void onSelectionChanged(doc::DocumentEvent& ev) override;
 
     // app::Context slots.
     void onAfterCommandExecution(Command* command);
diff --git a/src/doc/document_observer.h b/src/doc/document_observer.h
index 8b3d0aa4b..fb60b2ff4 100644
--- a/src/doc/document_observer.h
+++ b/src/doc/document_observer.h
@@ -55,6 +55,9 @@ namespace doc {
     // When the number of total frames available is modified.
     virtual void onTotalFramesChanged(DocumentEvent& ev) { }
 
+    // The selection has changed.
+    virtual void onSelectionChanged(DocumentEvent& ev) { }
+
     // Called to destroy the observable. (Here you could call "delete this".)
     virtual void dispose() { }
   };