Changeset - fbe70e32bc1a
[Not reviewed]
Hasan Yavuz Ă–ZDERYA - 8 years ago 2017-08-16 08:26:42
hy@ozderya.net
fix wrong view size, y axis scroll is broken
1 file changed with 3 insertions and 2 deletions:
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src/scrollzoomer.cpp
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@@ -37,103 +37,104 @@ public:
 

	
 
ScrollZoomer::ScrollZoomer( QWidget *canvas ):
 
    QwtPlotZoomer( canvas ),
 
    d_cornerWidget( NULL ),
 
    d_hScrollData( NULL ),
 
    d_vScrollData( NULL ),
 
    d_inZoom( false )
 
{
 
    xMin = 0.;
 
    xMax = 10000.;
 
    hViewSize = 10000;
 

	
 
    for ( int axis = 0; axis < QwtPlot::axisCnt; axis++ )
 
        d_alignCanvasToScales[ axis ] = false;
 

	
 
    if ( !canvas )
 
        return;
 

	
 
    d_hScrollData = new ScrollData;
 
    d_vScrollData = new ScrollData;
 
    hscrollmove = false;
 
}
 

	
 
ScrollZoomer::~ScrollZoomer()
 
{
 
    delete d_cornerWidget;
 
    delete d_vScrollData;
 
    delete d_hScrollData;
 
}
 

	
 
void ScrollZoomer::setXLimits(double min, double max)
 
{
 
    xMin = min;
 
    xMax = max;
 
    setZoomBase();
 
    // TODO: should we update zoom base here?
 
}
 

	
 
void ScrollZoomer::setHViewSize(double size)
 
{
 
    hViewSize = size;
 
}
 

	
 
void ScrollZoomer::setZoomBase(bool doReplot)
 
{
 
    QwtPlotZoomer::setZoomBase(doReplot);
 
    auto zb = zoomBase();
 
    auto zs = zoomStack();
 
    zb.setRight(xMax);
 
    if ((xMax - xMin) < hViewSize)
 
    {
 
        zb.setWidth(xMax - xMin);
 
        zb.setLeft(xMin);
 
    }
 
    else
 
    {
 
        zb.setWidth(hViewSize);
 
        zb.setLeft(xMax-hViewSize);
 
    }
 
    zs[0] = zb;
 
    setZoomStack(zs);
 
}
 

	
 
void ScrollZoomer::rescale()
 
{
 
    QwtScaleWidget *xScale = plot()->axisWidget( xAxis() );
 
    QwtScaleWidget *yScale = plot()->axisWidget( yAxis() );
 

	
 
    if ( zoomRectIndex() <= 0 )
 
    {
 
        if ( d_inZoom )
 
        {
 
            xScale->setMinBorderDist( 0, 0 );
 
            yScale->setMinBorderDist( 0, 0 );
 

	
 
            QwtPlotLayout *layout = plot()->plotLayout();
 

	
 
            for ( int axis = 0; axis < QwtPlot::axisCnt; axis++ )
 
                layout->setAlignCanvasToScale( axis, d_alignCanvasToScales[ axis ] );
 

	
 
            d_inZoom = false;
 
        }
 
    }
 
    else
 
    {
 
        if ( !d_inZoom )
 
        {
 
            /*
 
             We set a minimum border distance.
 
             Otherwise the canvas size changes when scrolling,
 
             between situations where the major ticks are at
 
             the canvas borders (requiring extra space for the label)
 
             and situations where all labels can be painted below/top
 
             or left/right of the canvas.
 
             */
 
            int start, end;
 

	
 
            xScale->getBorderDistHint( start, end );
 
            xScale->setMinBorderDist( start, end );
 

	
 
            yScale->getBorderDistHint( start, end );
 
            yScale->setMinBorderDist( start, end );
 

	
 
            QwtPlotLayout *layout = plot()->plotLayout();
 
            for ( int axis = 0; axis < QwtPlot::axisCnt; axis++ )
 
            {
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