mirror of
https://github.com/OPM/ResInsight.git
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111 lines
3.8 KiB
C++
111 lines
3.8 KiB
C++
/////////////////////////////////////////////////////////////////////////////////
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//
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// Copyright (C) 2023- Equinor ASA
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//
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// ResInsight is free software: you can redistribute it and/or modify
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// it under the terms of the GNU General Public License as published by
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// the Free Software Foundation, either version 3 of the License, or
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// (at your option) any later version.
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//
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// ResInsight is distributed in the hope that it will be useful, but WITHOUT ANY
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// WARRANTY; without even the implied warranty of MERCHANTABILITY or
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// FITNESS FOR A PARTICULAR PURPOSE.
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//
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// See the GNU General Public License at <http://www.gnu.org/licenses/gpl.html>
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// for more details.
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//
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/////////////////////////////////////////////////////////////////////////////////
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#include "RiuQwtPlotZoomerMultiAxes.h"
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#include "qwt_picker_machine.h"
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#include "qwt_plot.h"
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#include "qwt_scale_div.h"
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#include "qwt_scale_map.h"
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//--------------------------------------------------------------------------------------------------
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/// Create a zoomer for a plot canvas. All axes will be scaled based on the rectangle in screen coordinates.
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//--------------------------------------------------------------------------------------------------
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RiuQwtPlotZoomerMultiAxes::RiuQwtPlotZoomerMultiAxes( QWidget* canvas, bool doReplot )
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: QwtPlotPicker( canvas )
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{
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if ( canvas )
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{
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setTrackerMode( ActiveOnly );
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setRubberBand( RectRubberBand );
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setStateMachine( new QwtPickerDragRectMachine() );
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if ( doReplot && plot() ) plot()->replot();
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}
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}
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//--------------------------------------------------------------------------------------------------
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///
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//--------------------------------------------------------------------------------------------------
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bool RiuQwtPlotZoomerMultiAxes::end( bool ok )
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{
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ok = QwtPlotPicker::end( ok );
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if ( !ok ) return false;
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QwtPlot* plot = RiuQwtPlotZoomerMultiAxes::plot();
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if ( !plot ) return false;
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const QPolygon& pa = selection();
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if ( pa.count() < 2 ) return false;
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QRect rect = QRect( pa.first(), pa.last() );
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rect = rect.normalized();
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zoomFromScreenCoords( rect );
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return true;
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}
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//--------------------------------------------------------------------------------------------------
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///
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//--------------------------------------------------------------------------------------------------
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void RiuQwtPlotZoomerMultiAxes::zoomFromScreenCoords( const QRectF& screenCoords )
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{
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QwtPlot* plot = RiuQwtPlotZoomerMultiAxes::plot();
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if ( !plot ) return;
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const bool doReplot = plot->autoReplot();
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plot->setAutoReplot( false );
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for ( int axisPos = 0; axisPos < QwtAxis::AxisPositions; axisPos++ )
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{
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const int axesCount = plot->axesCount( axisPos );
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for ( int i = 0; i < axesCount; i++ )
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{
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const QwtAxisId axisId( axisPos, i );
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// Get the scale map for the axis used to convert between screen and domain coordinates
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const QwtScaleMap map = plot->canvasMap( axisId );
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if ( axisId.isXAxis() )
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{
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const double screenX1 = screenCoords.left();
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const double screenX2 = screenCoords.right();
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const double domainX1 = map.invTransform( screenX1 );
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const double domainX2 = map.invTransform( screenX2 );
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plot->setAxisScale( axisId, domainX1, domainX2 );
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}
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else
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{
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const double screenY1 = screenCoords.bottom();
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const double screenY2 = screenCoords.top();
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const double domainY1 = map.invTransform( screenY1 );
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const double domainY2 = map.invTransform( screenY2 );
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plot->setAxisScale( axisId, domainY1, domainY2 );
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}
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}
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}
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plot->setAutoReplot( doReplot );
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plot->replot();
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emit zoomed();
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}
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