彻底改版2.0

third/3rd_qwt/qwt_plot_seriesitem.h

@@ -0,0 +1,66 @@
+/* -*- mode: C++ ; c-file-style: "stroustrup" -*- *****************************
+ * Qwt Widget Library
+ * Copyright (C) 1997   Josef Wilgen
+ * Copyright (C) 2002   Uwe Rathmann
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the Qwt License, Version 1.0
+ *****************************************************************************/
+
+#ifndef QWT_PLOT_SERIES_ITEM_H
+#define QWT_PLOT_SERIES_ITEM_H
+
+#include "qwt_global.h"
+#include "qwt_plot_item.h"
+#include "qwt_scale_div.h"
+#include "qwt_series_data.h"
+#include "qwt_series_store.h"
+
+/*!
+  \brief Base class for plot items representing a series of samples
+*/
+class QWT_EXPORT QwtPlotSeriesItem: public QwtPlotItem,
+    public virtual QwtAbstractSeriesStore
+{
+public:
+    explicit QwtPlotSeriesItem( const QString &title = QString() );
+    explicit QwtPlotSeriesItem( const QwtText &title );
+
+    virtual ~QwtPlotSeriesItem();
+
+    void setOrientation( Qt::Orientation );
+    Qt::Orientation orientation() const;
+
+    virtual void draw( QPainter *,
+        const QwtScaleMap &xMap, const QwtScaleMap &yMap,
+        const QRectF & ) const;
+
+    /*!
+      Draw a subset of the samples
+
+      \param painter Painter
+      \param xMap Maps x-values into pixel coordinates.
+      \param yMap Maps y-values into pixel coordinates.
+      \param canvasRect Contents rectangle of the canvas
+      \param from Index of the first point to be painted
+      \param to Index of the last point to be painted. If to < 0 the
+             curve will be painted to its last point.
+    */
+    virtual void drawSeries( QPainter *painter,
+        const QwtScaleMap &xMap, const QwtScaleMap &yMap,
+        const QRectF &canvasRect, int from, int to ) const = 0;
+
+    virtual QRectF boundingRect() const;
+
+    virtual void updateScaleDiv(
+        const QwtScaleDiv &, const QwtScaleDiv & );
+
+protected:
+    virtual void dataChanged();
+
+private:
+    class PrivateData;
+    PrivateData *d_data;
+};
+
+#endif