Move packages to trunk root

Tutorial/tutorial/Qt_widget/tutorial3/README.txt

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+Third tutorial
+-----------------
+
+This tutorial guides you through the first contact with Layers.
+
+This tutorial is doing exactly what the previous tutorial does, but
+instead of putting the code for drawing in the redraw() function, it use a
+layer.
+
+In this example the layer is:
+
+class My_Layer : public CGAL::Qt_widget_layer{
+  void draw(CGAL::Qt_widget& win){
+    win << dt;
+  }
+};
+
+As you see you have to provide a draw() function in your layer, in
+order to create output on the screen. The Qt_widget will call this
+draw() function for every attached and active layer. A layer is active
+in the moment of attaching by default.
+
+In the code of the constructor of My_Window the layer is attached to
+the widget:
+
+	attach(&v);
+
+Because the layer is attached, the triangulation will appear on the
+screen every time you call redraw(), as the widget redraws all the
+layers. This means that in this tutorial every time you press the mouse
+button, the triangulation will be redrawn.
+
+Try to detach the layer to see what happens. Or try to deactivate
+the layer: The triangulation will not be shown anymore.

Tutorial/tutorial/Qt_widget/tutorial3/makefile

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+# Created by the script create_makefile
+# This is the makefile for compiling a CGAL application.
+
+#---------------------------------------------------------------------#
+#                    include platform specific settings
+#---------------------------------------------------------------------#
+# Choose the right include file from the <cgalroot>/make directory.
+
+# CGAL_MAKEFILE = ENTER_YOUR_INCLUDE_MAKEFILE_HERE
+include $(CGAL_MAKEFILE)
+
+#---------------------------------------------------------------------#
+#                    compiler flags
+#---------------------------------------------------------------------#
+
+CXXFLAGS = -I../../../../include/ \
+           $(CGAL_CXXFLAGS) \
+           $(LONG_NAME_PROBLEM_CXXFLAGS) \
+           $(DEBUG_OPT)
+
+#---------------------------------------------------------------------#
+#                    linker flags
+#---------------------------------------------------------------------#
+
+LIBPATH = \
+          $(CGAL_LIB_DIR)
+
+LDFLAGS = \
+          $(LONG_NAME_PROBLEM_LDFLAGS) \
+          $(CGAL_QT_LDFLAGS)
+
+#---------------------------------------------------------------------#
+#                    target entries
+#---------------------------------------------------------------------#
+
+all: tutorial3$(EXE_EXT)
+
+tutorial3$(EXE_EXT): tutorial3$(OBJ_EXT)
+	$(CGAL_CXX)  $(EXE_OPT)tutorial3 tutorial3$(OBJ_EXT) $(LDFLAGS)
+
+clean: tutorial3.clean
+
+#---------------------------------------------------------------------#
+#                    suffix rules
+#---------------------------------------------------------------------#
+
+.C$(OBJ_EXT):
+	$(CGAL_CXX) $(CXXFLAGS) $(OBJ_OPT) $<

Tutorial/tutorial/Qt_widget/tutorial3/tutorial3.C

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+//demo/Qt_widget/basic/tutorial3/tutorial3.C
+#ifndef CGAL_USE_QT
+#include <iostream>
+int main(int, char*){
+  std::cout << "Sorry, this demo needs QT..." << std::endl; return 0;}
+#else
+#include <CGAL/Cartesian.h>
+#include <CGAL/Point_2.h>
+#include <CGAL/Delaunay_triangulation_2.h>
+#include <CGAL/IO/Qt_widget_Delaunay_triangulation_2.h>
+#include <CGAL/IO/Qt_widget.h>
+#include <CGAL/IO/Qt_widget_layer.h>
+#include <qapplication.h>
+
+typedef CGAL::Cartesian<double>		    Rep;
+typedef CGAL::Point_2<Rep>		    Point;
+typedef CGAL::Delaunay_triangulation_2<Rep> Delaunay;
+
+Delaunay dt;
+
+class My_layer : public CGAL::Qt_widget_layer{
+  void draw(){
+    *widget << dt;
+  }
+};
+
+class My_window : public CGAL::Qt_widget {
+public:
+  My_window(int x, int y)
+  {
+    resize(x,y);
+    attach(&layer);
+  };
+private:
+  //this method is called when the user presses the mouse
+  void mousePressEvent(QMouseEvent *e)
+  {
+    Qt_widget::mousePressEvent(e);
+    dt.insert(Point(x_real(e->x()), y_real(e->y())));
+    redraw();
+  }
+  My_layer layer;
+};
+
+int main( int argc, char **argv )
+{
+    QApplication app( argc, argv );
+    My_window *W = new My_window(400,400);
+    app.setMainWidget(W);
+    W->show();
+    W->set_window(0, 400, 0, 400);
+    return app.exec();
+}
+#endif