彻底改版2.0

2021-11-17 16:41:30 +08:00
parent a7f4347959
commit ebfd531a91
2622 changed files with 8915 additions and 7263 deletions
--- a/third/qwtdemo/examples/itemeditor/plot.cpp
+++ b/third/qwtdemo/examples/itemeditor/plot.cpp
@@ -0,0 +1,120 @@
+#include "plot.h"
+#include "editor.h"
+#include <qwt_plot_shapeitem.h>
+#include <qwt_plot_magnifier.h>
+#include <qwt_plot_canvas.h>
+#include <qwt_legend.h>
+#include <qwt_plot_renderer.h>
+
+class Legend: public QwtLegend
+{
+protected:
+    virtual QWidget *createWidget( const QwtLegendData &data ) const
+    {
+        QWidget *w = QwtLegend::createWidget( data );
+        if ( w )
+        {
+            w->setStyleSheet(
+                "border-radius: 5px;"
+                "padding: 2px;"
+                "background: LemonChiffon;"
+            );
+        }
+
+        return w;
+    }
+};
+
+Plot::Plot( QWidget *parent ):
+    QwtPlot( parent )
+{
+    setAutoReplot( false );
+
+    setTitle( "Movable Items" );
+
+    const int margin = 5;
+    setContentsMargins( margin, margin, margin, margin );
+
+    setAutoFillBackground( true );
+    setPalette( QColor( "DimGray" ).lighter( 110 ) );
+
+    QwtPlotCanvas *canvas = new QwtPlotCanvas();
+#if 0
+    // a gradient making a replot slow on X11
+    canvas->setStyleSheet(
+        "border: 2px solid Black;"
+        "border-radius: 15px;"
+        "background-color: qlineargradient( x1: 0, y1: 0, x2: 0, y2: 1,"
+            "stop: 0 LemonChiffon, stop: 0.5 PaleGoldenrod, stop: 1 LemonChiffon );"
+    );
+#else
+    canvas->setStyleSheet(
+        "border: 2px inset DimGray;"
+        "border-radius: 15px;"
+        "background: LemonChiffon;"
+    );
+#endif
+
+    setCanvas( canvas );
+    insertLegend( new Legend(), QwtPlot::RightLegend );
+
+    populate();
+
+    updateAxes();
+    for ( int axis = 0; axis < QwtPlot::axisCnt; axis++ )
+        setAxisAutoScale( axis, false );
+
+    d_editor = new Editor( this );
+    ( void ) new QwtPlotMagnifier( canvas );
+}
+
+void Plot::populate()
+{
+    addShape( "Rectangle", ShapeFactory::Rect, "RoyalBlue", 
+        QPointF( 30.0, 50.0 ), QSizeF( 40.0, 50.0 ) );
+    addShape( "Ellipse", ShapeFactory::Ellipse, "IndianRed", 
+        QPointF( 80.0, 130.0 ), QSizeF( 50.0, 40.0 ) );
+    addShape( "Ring", ShapeFactory::Ring, "DarkOliveGreen", 
+        QPointF( 30.0, 165.0 ), QSizeF( 40.0, 40.0 ) );
+    addShape( "Triangle", ShapeFactory::Triangle, "SandyBrown", 
+        QPointF( 165.0, 165.0 ), QSizeF( 60.0, 40.0 ) );
+    addShape( "Star", ShapeFactory::Star, "DarkViolet", 
+        QPointF( 165.0, 50.0 ), QSizeF( 40.0, 50.0 ) );
+    addShape( "Hexagon", ShapeFactory::Hexagon, "DarkSlateGray", 
+        QPointF( 120.0, 70.0 ), QSizeF( 50.0, 50.0 ) );
+
+}
+
+void Plot::addShape( const QString &title,
+    ShapeFactory::Shape shape, const QColor &color, 
+    const QPointF &pos, const QSizeF &size )
+{
+    QwtPlotShapeItem *item = new QwtPlotShapeItem( title );
+    item->setItemAttribute( QwtPlotItem::Legend, true );
+    item->setLegendMode( QwtPlotShapeItem::LegendShape );
+    item->setLegendIconSize( QSize( 20, 20 ) );
+    item->setRenderHint( QwtPlotItem::RenderAntialiased, true );
+    item->setShape( ShapeFactory::path( shape, pos, size ) );
+
+    QColor fillColor = color;
+    fillColor.setAlpha( 200 );
+
+    QPen pen( color, 3 );
+    pen.setJoinStyle( Qt::MiterJoin );
+    item->setPen( pen );
+    item->setBrush( fillColor );
+
+    item->attach( this );
+}
+
+void Plot::exportPlot()
+{
+    QwtPlotRenderer renderer;
+    renderer.exportTo( this, "shapes.pdf" );
+}
+
+void Plot::setMode( int mode )
+{
+    d_editor->setMode( static_cast<Editor::Mode>( mode ) );
+}
+