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The standard toolbar includes the basic tools used for zooming and translating in a Qt_widget.
#include <CGAL/IO/Qt_widget_standard_toolbar.h>
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This constructor creates a new toolbar, called name, in your
application, containing all the standard tools. The first parameter
w is a non-null pointer to the Qt_widget object on which the
toolbar functionalities act. The second parameter mw is a
pointer to the QMainWindow that manages the toolbar. The later
is added to the top area of the QMainWindow, unless
mw=0. mw, parent, newline, name are
passed to the QMainWindow constructor (with first parameter
label=''Qt_widget standard toolbar'').
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Simplified version of the previous one. The parent is the
QMainWindow that manages the toolbar.
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| Deprecated: (in CGAL-2.4 the standard toolbar was not derived from QToolBar) Returns a pointer to the QToolBar this itself. |
#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 <qapplication.h>
#include <qmainwindow.h>
#include <CGAL/IO/Qt_widget.h>
#include <CGAL/IO/Qt_widget_layer.h>
#include <CGAL/IO/Qt_widget_standard_toolbar.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 << CGAL::BLACK;
*widget << dt;
}
};
class My_widget : public CGAL::Qt_widget {
public:
My_widget(QMainWindow* c) : CGAL::Qt_widget(c) {};
private:
//this event is called only 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();
}
};
class My_window : public QMainWindow{
public:
My_window(int x, int y)
{
widget = new My_widget(this);
setCentralWidget(widget);
resize(x,y);
widget->set_window(0, x, 0, y);
//How to attach the standard toolbar
stoolbar = new CGAL::Qt_widget_standard_toolbar(widget, this,
"Standard toolbar");
widget->attach(&v);
}
private:
My_widget *widget;
My_layer v;
CGAL::Qt_widget_standard_toolbar *stoolbar;
};
int main( int argc, char **argv )
{
QApplication app( argc, argv );
My_window W(400,400);
app.setMainWidget( &W );
W.show();
W.setCaption("Using the Standard Toolbar");
return app.exec();
}
This example is implemented in the fifth tutorial. You can look over the code to see how the code works.