From 1af22f1ab72442c711ed31fe73a7bf53c3e67f89 Mon Sep 17 00:00:00 2001
From: David Capello <davidcapello@gmail.com>
Date: Mon, 15 Jun 2015 11:29:12 -0300
Subject: [PATCH] Remember last frame/layer visited for each document (fix
 #486)

---
 data/pref.xml                |  4 ++++
 src/app/pref/preferences.h   |  1 +
 src/app/ui/editor/editor.cpp | 15 +++++++++++++++
 3 files changed, 20 insertions(+)

diff --git a/data/pref.xml b/data/pref.xml
index 4bfccfa70..9ceab9652 100644
--- a/data/pref.xml
+++ b/data/pref.xml
@@ -114,6 +114,10 @@
   </tool>
 
   <document>
+    <section id="site">
+      <option id="frame" type="doc::frame_t" default="doc::frame_t(0)" />
+      <option id="layer" type="doc::LayerIndex" />
+    </section>
     <section id="tiled">
       <option id="mode" type="filters::TiledMode" default="filters::TiledMode::NONE" migrate="Tools.Tiled" />
     </section>
diff --git a/src/app/pref/preferences.h b/src/app/pref/preferences.h
index ffe2108f0..2a2eda41d 100644
--- a/src/app/pref/preferences.h
+++ b/src/app/pref/preferences.h
@@ -19,6 +19,7 @@
 #include "doc/brush_pattern.h"
 #include "doc/documents_observer.h"
 #include "doc/frame.h"
+#include "doc/layer_index.h"
 #include "filters/tiled_mode.h"
 #include "gfx/rect.h"
 
diff --git a/src/app/ui/editor/editor.cpp b/src/app/ui/editor/editor.cpp
index 81bb790f0..9bbef3701 100644
--- a/src/app/ui/editor/editor.cpp
+++ b/src/app/ui/editor/editor.cpp
@@ -181,6 +181,14 @@ Editor::Editor(Document* document, EditorFlags flags)
 
   DocumentPreferences& docPref = Preferences::instance().document(m_document);
 
+  // Restore last site in preferences
+  frame_t preferredFrame = docPref.site.frame();
+  Layer* preferredLayer = m_sprite->indexToLayer(docPref.site.layer());
+  if (preferredFrame >= 0 && preferredFrame <= m_sprite->lastFrame())
+    setFrame(preferredFrame);
+  if (preferredLayer)
+    setLayer(preferredLayer);
+
   m_tiledConn = docPref.tiled.AfterChange.connect(Bind<void>(&Editor::invalidate, this));
   m_gridConn = docPref.grid.AfterChange.connect(Bind<void>(&Editor::invalidate, this));
   m_pixelGridConn = docPref.pixelGrid.AfterChange.connect(Bind<void>(&Editor::invalidate, this));
@@ -193,6 +201,13 @@ Editor::Editor(Document* document, EditorFlags flags)
 
 Editor::~Editor()
 {
+  if (m_document && m_sprite) {
+    DocumentPreferences& docPref = Preferences::instance()
+      .document(m_document);
+    docPref.site.frame(frame());
+    docPref.site.layer(m_sprite->layerToIndex(layer()));
+  }
+
   m_observers.notifyDestroyEditor(this);
   m_document->removeObserver(this);