新增qwt源码版本

qwtdemo/examples/bode/mainwindow.h

@@ -0,0 +1,35 @@
+#include <qmainwindow.h>
+
+class QwtPlotZoomer;
+class QwtPlotPicker;
+class QwtPlotPanner;
+class Plot;
+class QPolygon;
+
+class MainWindow : public QMainWindow
+{
+    Q_OBJECT
+
+public:
+    MainWindow( QWidget *parent = 0 );
+
+private Q_SLOTS:
+    void moved( const QPoint & );
+    void selected( const QPolygon & );
+
+#ifndef QT_NO_PRINTER
+    void print();
+#endif
+
+    void exportDocument();
+    void enableZoomMode( bool );
+
+private:
+    void showInfo( QString text = QString::null );
+
+    Plot *d_plot;
+
+    QwtPlotZoomer *d_zoomer[2];
+    QwtPlotPicker *d_picker;
+    QwtPlotPanner *d_panner;
+};