Add files from zip

2023-10-31 09:22:42 +01:00
parent 6bacdc5f6d
commit 4dae68036f
2788 changed files with 492537 additions and 0 deletions
--- a/src/qwt_plot_graphicitem.cpp
+++ b/src/qwt_plot_graphicitem.cpp
@@ -0,0 +1,136 @@
+/******************************************************************************
+ * 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
+ *****************************************************************************/
+
+#include "qwt_plot_graphicitem.h"
+#include "qwt_scale_map.h"
+#include "qwt_painter.h"
+#include "qwt_text.h"
+#include "qwt_graphic.h"
+
+class QwtPlotGraphicItem::PrivateData
+{
+  public:
+    QRectF boundingRect;
+    QwtGraphic graphic;
+};
+
+/*!
+   \brief Constructor
+
+   Sets the following item attributes:
+   - QwtPlotItem::AutoScale: true
+   - QwtPlotItem::Legend:    false
+
+   \param title Title
+ */
+QwtPlotGraphicItem::QwtPlotGraphicItem( const QString& title )
+    : QwtPlotItem( QwtText( title ) )
+{
+    init();
+}
+
+/*!
+   \brief Constructor
+
+   Sets the following item attributes:
+   - QwtPlotItem::AutoScale: true
+   - QwtPlotItem::Legend:    false
+
+   \param title Title
+ */
+QwtPlotGraphicItem::QwtPlotGraphicItem( const QwtText& title )
+    : QwtPlotItem( title )
+{
+    init();
+}
+
+//! Destructor
+QwtPlotGraphicItem::~QwtPlotGraphicItem()
+{
+    delete m_data;
+}
+
+void QwtPlotGraphicItem::init()
+{
+    m_data = new PrivateData();
+    m_data->boundingRect = QwtPlotItem::boundingRect();
+
+    setItemAttribute( QwtPlotItem::AutoScale, true );
+    setItemAttribute( QwtPlotItem::Legend, false );
+
+    setZ( 8.0 );
+}
+
+//! \return QwtPlotItem::Rtti_PlotGraphic
+int QwtPlotGraphicItem::rtti() const
+{
+    return QwtPlotItem::Rtti_PlotGraphic;
+}
+
+/*!
+   Set the graphic to be displayed
+
+   \param rect Rectangle in plot coordinates
+   \param graphic Recorded sequence of painter commands
+ */
+void QwtPlotGraphicItem::setGraphic(
+    const QRectF& rect, const QwtGraphic& graphic )
+{
+    m_data->boundingRect = rect;
+    m_data->graphic = graphic;
+
+    legendChanged();
+    itemChanged();
+}
+
+/*!
+   \return Recorded sequence of painter commands
+   \sa setGraphic()
+ */
+QwtGraphic QwtPlotGraphicItem::graphic() const
+{
+    return m_data->graphic;
+}
+
+//! Bounding rectangle of the item
+QRectF QwtPlotGraphicItem::boundingRect() const
+{
+    return m_data->boundingRect;
+}
+
+/*!
+   Draw the item
+
+   \param painter Painter
+   \param xMap X-Scale Map
+   \param yMap Y-Scale Map
+   \param canvasRect Contents rect of the plot canvas
+ */
+void QwtPlotGraphicItem::draw( QPainter* painter,
+    const QwtScaleMap& xMap, const QwtScaleMap& yMap,
+    const QRectF& canvasRect ) const
+{
+    if ( m_data->graphic.isEmpty() )
+        return;
+
+    QRectF r = QwtScaleMap::transform( xMap, yMap, boundingRect() );
+
+    if ( !r.intersects( canvasRect ) )
+        return;
+
+    if ( QwtPainter::roundingAlignment( painter ) )
+    {
+        r.setLeft ( qRound( r.left() ) );
+        r.setRight ( qRound( r.right() ) );
+        r.setTop ( qRound( r.top() ) );
+        r.setBottom ( qRound( r.bottom() ) );
+    }
+
+    m_data->graphic.render( painter, r );
+}