Move dirty area from ToolLoop impl to ToolLoopManager

src/app/tools/tool_loop.h

@@ -1,4 +1,5 @@
 // Aseprite
+// Copyright (C) 2019  Igara Studio S.A.
 // Copyright (C) 2001-2017  David Capello
 //
 // This program is distributed under the terms of
@@ -221,12 +222,8 @@ namespace app {
       // Returns true if the loop was canceled by the user
       virtual bool isCanceled() = 0;
 
-      // This region is modified by the ToolLoopManager so then you know
-      // what must be updated in updateDirtyArea().
-      virtual gfx::Region& getDirtyArea() = 0;
-
       // Redraws the dirty area.
-      virtual void updateDirtyArea() = 0;
+      virtual void updateDirtyArea(const gfx::Region& dirtyArea) = 0;
 
       virtual void updateStatusBar(const char* text) = 0;
       virtual gfx::Point statusBarPositionOffset() = 0;

src/app/tools/tool_loop_manager.cpp

@@ -1,4 +1,5 @@
 // Aseprite
+// Copyright (C) 2019  Igara Studio S.A.
 // Copyright (C) 2001-2018  David Capello
 //
 // This program is distributed under the terms of
@@ -35,7 +36,6 @@ using namespace filters;
 
 ToolLoopManager::ToolLoopManager(ToolLoop* toolLoop)
   : m_toolLoop(toolLoop)
-  , m_dirtyArea(toolLoop->getDirtyArea())
 {
 }
 
@@ -206,7 +206,7 @@ void ToolLoopManager::doLoopStep(bool last_step)
   }
 
   if (!m_dirtyArea.isEmpty())
-    m_toolLoop->updateDirtyArea();
+    m_toolLoop->updateDirtyArea(m_dirtyArea);
 }
 
 // Applies the grid settings to the specified sprite point.

src/app/tools/tool_loop_manager.h

@@ -1,4 +1,5 @@
 // Aseprite
+// Copyright (C) 2019  Igara Studio S.A.
 // Copyright (C) 2001-2017  David Capello
 //
 // This program is distributed under the terms of
@@ -78,7 +79,7 @@ private:
   Stroke m_stroke;
   Pointer m_lastPointer;
   gfx::Point m_oldPoint;
-  gfx::Region& m_dirtyArea;
+  gfx::Region m_dirtyArea;
   gfx::Region m_nextDirtyArea;
 };
 

src/app/ui/editor/tool_loop_impl.cpp

@@ -95,7 +95,6 @@ protected:
   doc::color_t m_bgColor;
   doc::color_t m_primaryColor;
   doc::color_t m_secondaryColor;
-  gfx::Region m_dirtyArea;
 
 public:
   ToolLoopBase(Editor* editor,
@@ -261,11 +260,7 @@ public:
   tools::Symmetry* getSymmetry() override { return m_symmetry.get(); }
   doc::Remap* getShadingRemap() override { return m_shadingRemap.get(); }
 
-  gfx::Region& getDirtyArea() override {
-    return m_dirtyArea;
-  }
-
-  void updateDirtyArea() override {
+  void updateDirtyArea(const gfx::Region& dirtyArea) override {
     // This is necessary here so the "on sprite crosshair" is hidden,
     // we update screen pixels with the new sprite, and then we show
     // the crosshair saving the updated pixels. It fixes problems with
@@ -274,7 +269,7 @@ public:
     HideBrushPreview hide(m_editor->brushPreview());
 
     m_document->notifySpritePixelsModified(
-      m_sprite, m_dirtyArea, m_frame);
+      m_sprite, dirtyArea, m_frame);
   }
 
   void updateStatusBar(const char* text) override {