--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/Framework/Widgets/TestCairoWidget.cpp	Fri Oct 14 15:34:11 2016 +0200
@@ -0,0 +1,138 @@
+/**
+ * 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/>.
+ **/
+
+
+#include "TestCairoWidget.h"
+
+#include "../Orthanc/Core/Toolbox.h"
+
+#include <stdio.h>
+
+
+namespace OrthancStone
+{
+  namespace Samples
+  {
+    void TestCairoWidget::UpdateStep() 
+    {
+      value_ -= 0.01f;
+      if (value_ < 0)
+      {
+        value_ = 1;
+      }
+
+      NotifyChange();
+
+      Orthanc::Toolbox::USleep(25000);
+    }
+
+
+    bool TestCairoWidget::RenderCairo(CairoContext& context)
+    {
+      cairo_t* cr = context.GetObject();
+
+      cairo_set_source_rgb (cr, .3, 0, 0);
+      cairo_paint(cr);
+
+      cairo_set_source_rgb(cr, 0, 1, 0);
+      cairo_rectangle(cr, width_ / 4, height_ / 4, width_ / 2, height_ / 2);
+      cairo_set_line_width(cr, 1.0);
+      cairo_fill(cr);
+
+      cairo_set_source_rgb(cr, 0, 1, value_);
+      cairo_rectangle(cr, width_ / 2 - 50, height_ / 2 - 50, 100, 100);
+      cairo_fill(cr);
+
+      return true;
+    }
+
+
+    void TestCairoWidget::RenderMouseOverCairo(CairoContext& context,
+                                               int x,
+                                               int y)
+    {
+      cairo_t* cr = context.GetObject();
+
+      cairo_set_source_rgb (cr, 1, 0, 0);
+      cairo_rectangle(cr, x - 5, y - 5, 10, 10);
+      cairo_set_line_width(cr, 1.0);
+      cairo_stroke(cr);
+
+      char buf[64];
+      sprintf(buf, "(%d,%d)", x, y);
+      UpdateStatusBar(buf);
+    }
+
+
+    TestCairoWidget::TestCairoWidget(bool animate) :
+      width_(0),
+      height_(0),
+      value_(1),
+      animate_(animate)
+    {
+    }
+
+
+    void TestCairoWidget::SetSize(unsigned int width, 
+                                  unsigned int height)
+    {
+      CairoWidget::SetSize(width, height);
+      width_ = width;
+      height_ = height;
+    }
+ 
+
+    IMouseTracker* TestCairoWidget::CreateMouseTracker(MouseButton button,
+                                                       int x,
+                                                       int y,
+                                                       KeyboardModifiers modifiers)
+    {
+      UpdateStatusBar("Click");
+      return NULL;
+    }
+
+
+    void TestCairoWidget::MouseWheel(MouseWheelDirection direction,
+                                     int x,
+                                     int y,
+                                     KeyboardModifiers modifiers) 
+    {
+      UpdateStatusBar(direction == MouseWheelDirection_Down ? "Wheel down" : "Wheel up");
+    }
+
+    
+    void TestCairoWidget::KeyPressed(char key,
+                                     KeyboardModifiers modifiers)
+    {
+      UpdateStatusBar("Key pressed: \"" + std::string(1, key) + "\"");
+    }
+  }
+}