--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/Framework/Widgets/LayoutWidget.h	Fri Oct 14 15:34:11 2016 +0200
@@ -0,0 +1,147 @@
+/**
+ * Stone of Orthanc
+ * Copyright (C) 2012-2016 Sebastien Jodogne, Medical Physics
+ * Department, University Hospital of Liege, Belgium
+ *
+ * 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 the Free Software Foundation, either version 3 of the
+ * License, or (at your option) any later version.
+ *
+ * In addition, as a special exception, the copyright holders of this
+ * program give permission to link the code of its release with the
+ * OpenSSL project's "OpenSSL" library (or with modified versions of it
+ * that use the same license as the "OpenSSL" library), and distribute
+ * the linked executables. You must obey the GNU General Public License
+ * in all respects for all of the code used other than "OpenSSL". If you
+ * modify file(s) with this exception, you may extend this exception to
+ * your version of the file(s), but you are not obligated to do so. If
+ * you do not wish to do so, delete this exception statement from your
+ * version. If you delete this exception statement from all source files
+ * in the program, then also delete it here.
+ * 
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ **/
+
+
+#pragma once
+
+#include "WidgetBase.h"
+
+
+namespace OrthancStone
+{
+  class LayoutWidget : 
+    public WidgetBase,
+    public IWidget::IChangeObserver
+  {
+  private:
+    class LayoutMouseTracker;
+    class ChildWidget;
+
+    std::vector<ChildWidget*>     children_;
+    bool                          isHorizontal_;
+    bool                          started_;
+    unsigned int                  width_;
+    unsigned int                  height_;
+    std::auto_ptr<IMouseTracker>  mouseTracker_;
+    unsigned int                  paddingLeft_;
+    unsigned int                  paddingTop_;
+    unsigned int                  paddingRight_;
+    unsigned int                  paddingBottom_;
+    unsigned int                  paddingInternal_;
+
+    void ComputeChildrenExtents();
+
+  protected:
+    virtual bool HasUpdateThread() const 
+    {
+      return false;
+    }
+
+    virtual void UpdateStep();
+
+
+  public:
+    LayoutWidget();
+
+    virtual ~LayoutWidget();
+
+    virtual void NotifyChange(const IWidget& widget);
+
+    void SetHorizontal();
+
+    void SetVertical();
+
+    void SetPadding(unsigned int left,
+                    unsigned int top,
+                    unsigned int right,
+                    unsigned int bottom,
+                    unsigned int spacing);
+    
+    void SetPadding(unsigned int padding);
+
+    unsigned int GetPaddingLeft() const
+    {
+      return paddingLeft_;
+    }
+
+    unsigned int GetPaddingTop() const
+    {
+      return paddingTop_;
+    }
+
+    unsigned int GetPaddingRight() const
+    {
+      return paddingRight_;
+    }
+
+    unsigned int GetPaddingBottom() const
+    {
+      return paddingBottom_;
+    }
+
+    unsigned int GetPaddingInternal() const
+    {
+      return paddingInternal_;
+    }
+
+    IWidget& AddWidget(IWidget* widget);  // Takes ownership
+
+    virtual void SetStatusBar(IStatusBar& statusBar);
+
+    virtual void ResetStatusBar();
+
+    virtual void Start();
+
+    virtual void Stop();
+
+    virtual void SetSize(unsigned int width,
+                         unsigned int height);
+
+    virtual bool Render(Orthanc::ImageAccessor& surface);
+    
+    virtual IMouseTracker* CreateMouseTracker(MouseButton button,
+                                              int x,
+                                              int y,
+                                              KeyboardModifiers modifiers);
+
+    virtual void RenderMouseOver(Orthanc::ImageAccessor& target,
+                                 int x,
+                                 int y);
+
+    virtual void MouseWheel(MouseWheelDirection direction,
+                            int x,
+                            int y,
+                            KeyboardModifiers modifiers);
+
+    virtual void KeyPressed(char key,
+                            KeyboardModifiers modifiers);
+  };
+}