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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-15 05:54:39 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-15 05:54:39 +0000
commit267c6f2ac71f92999e969232431ba04678e7437e (patch)
tree358c9467650e1d0a1d7227a21dac2e3d08b622b2 /extensions/source/scanner/grid.cxx
parentInitial commit. (diff)
downloadlibreoffice-267c6f2ac71f92999e969232431ba04678e7437e.tar.xz
libreoffice-267c6f2ac71f92999e969232431ba04678e7437e.zip
Adding upstream version 4:24.2.0.upstream/4%24.2.0
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'extensions/source/scanner/grid.cxx')
-rw-r--r--extensions/source/scanner/grid.cxx699
1 files changed, 699 insertions, 0 deletions
diff --git a/extensions/source/scanner/grid.cxx b/extensions/source/scanner/grid.cxx
new file mode 100644
index 0000000000..7d87010ea1
--- /dev/null
+++ b/extensions/source/scanner/grid.cxx
@@ -0,0 +1,699 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/*
+ * This file is part of the LibreOffice project.
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ *
+ * This file incorporates work covered by the following license notice:
+ *
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements. See the NOTICE file distributed
+ * with this work for additional information regarding copyright
+ * ownership. The ASF licenses this file to you under the Apache
+ * License, Version 2.0 (the "License"); you may not use this file
+ * except in compliance with the License. You may obtain a copy of
+ * the License at http://www.apache.org/licenses/LICENSE-2.0 .
+ */
+
+#include <sal/config.h>
+#include <o3tl/sprintf.hxx>
+#include <osl/thread.h>
+#include <rtl/math.hxx>
+
+#include <bitmaps.hlst>
+#include <cmath>
+
+#include "grid.hxx"
+#include <vcl/bitmapex.hxx>
+#include <vcl/customweld.hxx>
+#include <vcl/event.hxx>
+#include <vcl/settings.hxx>
+#include <vcl/svapp.hxx>
+
+#include <algorithm>
+#include <limits>
+#include <memory>
+
+class GridWindow : public weld::CustomWidgetController
+{
+ // helper class for handles
+ struct impHandle
+ {
+ Point maPos;
+ sal_uInt16 mnOffX;
+ sal_uInt16 mnOffY;
+
+ impHandle(const Point& rPos, sal_uInt16 nX, sal_uInt16 nY)
+ : maPos(rPos), mnOffX(nX), mnOffY(nY)
+ {
+ }
+
+ bool operator<(const impHandle& rComp) const
+ {
+ return (maPos.X() < rComp.maPos.X());
+ }
+
+ void draw(vcl::RenderContext& rRenderContext, const BitmapEx& rBitmapEx)
+ {
+ const Point aOffset(rRenderContext.PixelToLogic(Point(mnOffX, mnOffY)));
+ rRenderContext.DrawBitmapEx(maPos - aOffset, rBitmapEx);
+ }
+
+ bool isHit(OutputDevice const & rWin, const Point& rPos)
+ {
+ const Point aOffset(rWin.PixelToLogic(Point(mnOffX, mnOffY)));
+ const tools::Rectangle aTarget(maPos - aOffset, maPos + aOffset);
+ return aTarget.Contains(rPos);
+ }
+ };
+
+ tools::Rectangle m_aGridArea;
+
+ double m_fMinX;
+ double m_fMinY;
+ double m_fMaxX;
+ double m_fMaxY;
+
+ double m_fChunkX;
+ double m_fMinChunkX;
+ double m_fChunkY;
+ double m_fMinChunkY;
+
+ double* m_pXValues;
+ double* m_pOrigYValues;
+ int m_nValues;
+ std::unique_ptr<double[]> m_pNewYValues;
+
+ sal_uInt16 m_BmOffX;
+ sal_uInt16 m_BmOffY;
+
+ bool m_bCutValues;
+
+ // stuff for handles
+ using Handles = std::vector<impHandle>;
+ static constexpr auto npos = std::numeric_limits<Handles::size_type>::max();
+ Handles m_aHandles;
+ Handles::size_type m_nDragIndex;
+
+ BitmapEx m_aMarkerBitmap;
+
+ Point transform( double x, double y );
+ void transform( const Point& rOriginal, double& x, double& y );
+
+ double findMinX();
+ double findMinY();
+ double findMaxX();
+ double findMaxY();
+
+ void drawGrid(vcl::RenderContext& rRenderContext);
+ void drawOriginal(vcl::RenderContext& rRenderContext);
+ void drawNew(vcl::RenderContext& rRenderContext);
+ void drawHandles(vcl::RenderContext& rRenderContext);
+
+ void computeExtremes();
+ static void computeChunk( double fMin, double fMax, double& fChunkOut, double& fMinChunkOut );
+ void computeNew();
+ static double interpolate( double x, double const * pNodeX, double const * pNodeY, int nNodes );
+
+ virtual bool MouseMove( const MouseEvent& ) override;
+ virtual bool MouseButtonDown( const MouseEvent& ) override;
+ virtual bool MouseButtonUp( const MouseEvent& ) override;
+ void onResize();
+ virtual void Resize() override;
+ virtual void SetDrawingArea(weld::DrawingArea* pDrawingArea) override;
+ void drawLine(vcl::RenderContext& rRenderContext, double x1, double y1, double x2, double y2);
+public:
+ GridWindow();
+ void Init(double* pXValues, double* pYValues, int nValues, bool bCutValues, const BitmapEx &rMarkerBitmap);
+ virtual ~GridWindow() override;
+
+ void setBoundings( double fMinX, double fMinY, double fMaxX, double fMaxY );
+
+ double* getNewYValues() { return m_pNewYValues.get(); }
+
+ void ChangeMode(ResetType nType);
+
+ virtual void Paint( vcl::RenderContext& /*rRenderContext*/, const tools::Rectangle& rRect ) override;
+};
+
+GridWindow::GridWindow()
+ : m_aGridArea(50, 15, 100, 100)
+ , m_fMinX(0.0)
+ , m_fMinY(0.0)
+ , m_fMaxX(0.0)
+ , m_fMaxY(0.0)
+ , m_fChunkX(0.0)
+ , m_fMinChunkX(0.0)
+ , m_fChunkY(0.0)
+ , m_fMinChunkY(0.0)
+ , m_pXValues(nullptr)
+ , m_pOrigYValues(nullptr)
+ , m_nValues(0)
+ , m_BmOffX(0)
+ , m_BmOffY(0)
+ , m_bCutValues(false)
+ , m_nDragIndex(npos)
+{
+}
+
+void GridWindow::Init(double* pXValues, double* pYValues, int nValues, bool bCutValues, const BitmapEx &rMarkerBitmap)
+{
+ m_aMarkerBitmap = rMarkerBitmap;
+ m_pXValues = pXValues;
+ m_pOrigYValues = pYValues;
+ m_nValues = nValues;
+ m_bCutValues = bCutValues;
+
+ onResize();
+
+ if (m_pOrigYValues && m_nValues)
+ {
+ m_pNewYValues.reset(new double[ m_nValues ]);
+ memcpy( m_pNewYValues.get(), m_pOrigYValues, sizeof( double ) * m_nValues );
+ }
+
+ setBoundings( 0, 0, 1023, 1023 );
+ computeExtremes();
+
+ // create left and right marker as first and last entry
+ m_BmOffX = sal_uInt16(m_aMarkerBitmap.GetSizePixel().Width() >> 1);
+ m_BmOffY = sal_uInt16(m_aMarkerBitmap.GetSizePixel().Height() >> 1);
+ m_aHandles.push_back(impHandle(transform(findMinX(), findMinY()), m_BmOffX, m_BmOffY));
+ m_aHandles.push_back(impHandle(transform(findMaxX(), findMaxY()), m_BmOffX, m_BmOffY));
+}
+
+void GridWindow::Resize()
+{
+ onResize();
+}
+
+void GridWindow::onResize()
+{
+ Size aSize = GetOutputSizePixel();
+ m_aGridArea.setWidth( aSize.Width() - 80 );
+ m_aGridArea.setHeight( aSize.Height() - 40 );
+}
+
+void GridWindow::SetDrawingArea(weld::DrawingArea* pDrawingArea)
+{
+ Size aSize(pDrawingArea->get_ref_device().LogicToPixel(Size(240, 200), MapMode(MapUnit::MapAppFont)));
+ pDrawingArea->set_size_request(aSize.Width(), aSize.Height());
+ CustomWidgetController::SetDrawingArea(pDrawingArea);
+ SetOutputSizePixel(aSize);
+}
+
+GridDialog::GridDialog(weld::Window* pParent, double* pXValues, double* pYValues, int nValues)
+ : GenericDialogController(pParent, "modules/scanner/ui/griddialog.ui", "GridDialog")
+ , m_xResetTypeBox(m_xBuilder->weld_combo_box("resetTypeCombobox"))
+ , m_xResetButton(m_xBuilder->weld_button("resetButton"))
+ , m_xGridWindow(new GridWindow)
+ , m_xGridWindowWND(new weld::CustomWeld(*m_xBuilder, "gridwindow", *m_xGridWindow))
+{
+ m_xGridWindow->Init(pXValues, pYValues, nValues, true/*bCutValues*/, BitmapEx(RID_SCANNER_HANDLE));
+ m_xResetTypeBox->set_active(0);
+ m_xResetButton->connect_clicked( LINK( this, GridDialog, ClickButtonHdl ) );
+}
+
+GridDialog::~GridDialog()
+{
+}
+
+GridWindow::~GridWindow()
+{
+ m_pNewYValues.reset();
+}
+
+double GridWindow::findMinX()
+{
+ if( ! m_pXValues )
+ return 0.0;
+ double fMin = m_pXValues[0];
+ for( int i = 1; i < m_nValues; i++ )
+ if( m_pXValues[ i ] < fMin )
+ fMin = m_pXValues[ i ];
+ return fMin;
+}
+
+double GridWindow::findMinY()
+{
+ if( ! m_pNewYValues )
+ return 0.0;
+ double fMin = m_pNewYValues[0];
+ for( int i = 1; i < m_nValues; i++ )
+ if( m_pNewYValues[ i ] < fMin )
+ fMin = m_pNewYValues[ i ];
+ return fMin;
+}
+
+
+double GridWindow::findMaxX()
+{
+ if( ! m_pXValues )
+ return 0.0;
+ double fMax = m_pXValues[0];
+ for( int i = 1; i < m_nValues; i++ )
+ if( m_pXValues[ i ] > fMax )
+ fMax = m_pXValues[ i ];
+ return fMax;
+}
+
+
+double GridWindow::findMaxY()
+{
+ if( ! m_pNewYValues )
+ return 0.0;
+ double fMax = m_pNewYValues[0];
+ for( int i = 1; i < m_nValues; i++ )
+ if( m_pNewYValues[ i ] > fMax )
+ fMax = m_pNewYValues[ i ];
+ return fMax;
+}
+
+
+void GridWindow::computeExtremes()
+{
+ if( !(m_nValues && m_pXValues && m_pOrigYValues) )
+ return;
+
+ m_fMaxX = m_fMinX = m_pXValues[0];
+ m_fMaxY = m_fMinY = m_pOrigYValues[0];
+ for( int i = 1; i < m_nValues; i++ )
+ {
+ if( m_pXValues[ i ] > m_fMaxX )
+ m_fMaxX = m_pXValues[ i ];
+ else if( m_pXValues[ i ] < m_fMinX )
+ m_fMinX = m_pXValues[ i ];
+ if( m_pOrigYValues[ i ] > m_fMaxY )
+ m_fMaxY = m_pOrigYValues[ i ];
+ else if( m_pOrigYValues[ i ] < m_fMinY )
+ m_fMinY = m_pOrigYValues[ i ];
+ }
+ setBoundings( m_fMinX, m_fMinY, m_fMaxX, m_fMaxY );
+}
+
+
+Point GridWindow::transform( double x, double y )
+{
+ Point aRet;
+
+ aRet.setX( static_cast<tools::Long>( ( x - m_fMinX ) *
+ static_cast<double>(m_aGridArea.GetWidth()) / ( m_fMaxX - m_fMinX )
+ + m_aGridArea.Left() ) );
+ aRet.setY( static_cast<tools::Long>(
+ m_aGridArea.Bottom() -
+ ( y - m_fMinY ) *
+ static_cast<double>(m_aGridArea.GetHeight()) / ( m_fMaxY - m_fMinY ) ) );
+ return aRet;
+}
+
+void GridWindow::transform( const Point& rOriginal, double& x, double& y )
+{
+ const tools::Long nWidth = m_aGridArea.GetWidth();
+ const tools::Long nHeight = m_aGridArea.GetHeight();
+ if (!nWidth || !nHeight)
+ return;
+ x = ( rOriginal.X() - m_aGridArea.Left() ) * (m_fMaxX - m_fMinX) / static_cast<double>(nWidth) + m_fMinX;
+ y = ( m_aGridArea.Bottom() - rOriginal.Y() ) * (m_fMaxY - m_fMinY) / static_cast<double>(nHeight) + m_fMinY;
+}
+
+void GridWindow::drawLine(vcl::RenderContext& rRenderContext, double x1, double y1, double x2, double y2 )
+{
+ rRenderContext.DrawLine(transform(x1, y1), transform(x2, y2));
+}
+
+void GridWindow::computeChunk( double fMin, double fMax, double& fChunkOut, double& fMinChunkOut )
+{
+ // get a nice chunk size like 10, 100, 25 or such
+ fChunkOut = ( fMax - fMin ) / 6.0;
+ int logchunk = static_cast<int>(std::log10( fChunkOut ));
+ int nChunk = static_cast<int>( fChunkOut / std::exp( static_cast<double>(logchunk-1) * M_LN10 ) );
+ if( nChunk >= 75 )
+ nChunk = 100;
+ else if( nChunk >= 35 )
+ nChunk = 50;
+ else if ( nChunk > 20 )
+ nChunk = 25;
+ else if ( nChunk >= 13 )
+ nChunk = 20;
+ else if( nChunk > 5 )
+ nChunk = 10;
+ else
+ nChunk = 5;
+ fChunkOut = static_cast<double>(nChunk) * exp( static_cast<double>(logchunk-1) * M_LN10 );
+ // compute whole chunks fitting into fMin
+ nChunk = static_cast<int>( fMin / fChunkOut );
+ fMinChunkOut = static_cast<double>(nChunk) * fChunkOut;
+ while( fMinChunkOut < fMin )
+ fMinChunkOut += fChunkOut;
+}
+
+
+void GridWindow::computeNew()
+{
+ if(2 == m_aHandles.size())
+ {
+ // special case: only left and right markers
+ double xleft, yleft;
+ double xright, yright;
+ transform(m_aHandles[0].maPos, xleft, yleft);
+ transform(m_aHandles[1].maPos, xright, yright );
+ double factor = (yright-yleft)/(xright-xleft);
+ for( int i = 0; i < m_nValues; i++ )
+ {
+ m_pNewYValues[ i ] = yleft + ( m_pXValues[ i ] - xleft )*factor;
+ }
+ }
+ else
+ {
+ // sort markers
+ std::sort(m_aHandles.begin(), m_aHandles.end());
+ const int nSorted = m_aHandles.size();
+ int i;
+
+ // get node arrays
+ std::unique_ptr<double[]> nodex(new double[ nSorted ]);
+ std::unique_ptr<double[]> nodey(new double[ nSorted ]);
+
+ for( i = 0; i < nSorted; i++ )
+ transform( m_aHandles[i].maPos, nodex[ i ], nodey[ i ] );
+
+ for( i = 0; i < m_nValues; i++ )
+ {
+ double x = m_pXValues[ i ];
+ m_pNewYValues[ i ] = interpolate( x, nodex.get(), nodey.get(), nSorted );
+ if( m_bCutValues )
+ {
+ if( m_pNewYValues[ i ] > m_fMaxY )
+ m_pNewYValues[ i ] = m_fMaxY;
+ else if( m_pNewYValues[ i ] < m_fMinY )
+ m_pNewYValues[ i ] = m_fMinY;
+ }
+ }
+ }
+}
+
+
+double GridWindow::interpolate(
+ double x,
+ double const * pNodeX,
+ double const * pNodeY,
+ int nNodes )
+{
+ // compute Lagrange interpolation
+ double ret = 0;
+ for( int i = 0; i < nNodes; i++ )
+ {
+ double sum = pNodeY[ i ];
+ for( int n = 0; n < nNodes; n++ )
+ {
+ if( n != i )
+ {
+ sum *= x - pNodeX[ n ];
+ sum /= pNodeX[ i ] - pNodeX[ n ];
+ }
+ }
+ ret += sum;
+ }
+ return ret;
+}
+
+void GridDialog::setBoundings(double fMinX, double fMinY, double fMaxX, double fMaxY)
+{
+ m_xGridWindow->setBoundings(fMinX, fMinY, fMaxX, fMaxY);
+}
+
+void GridWindow::setBoundings(double fMinX, double fMinY, double fMaxX, double fMaxY)
+{
+ m_fMinX = fMinX;
+ m_fMinY = fMinY;
+ m_fMaxX = fMaxX;
+ m_fMaxY = fMaxY;
+
+ computeChunk( m_fMinX, m_fMaxX, m_fChunkX, m_fMinChunkX );
+ computeChunk( m_fMinY, m_fMaxY, m_fChunkY, m_fMinChunkY );
+}
+
+void GridWindow::drawGrid(vcl::RenderContext& rRenderContext)
+{
+ char pBuf[256];
+ rRenderContext.SetLineColor(COL_BLACK);
+ // draw vertical lines
+ for (double fX = m_fMinChunkX; fX < m_fMaxX; fX += m_fChunkX)
+ {
+ drawLine(rRenderContext, fX, m_fMinY, fX, m_fMaxY);
+ // draw tickmarks
+ Point aPt = transform(fX, m_fMinY);
+ o3tl::sprintf(pBuf, "%g", fX);
+ OUString aMark(pBuf, strlen(pBuf), osl_getThreadTextEncoding());
+ Size aTextSize(rRenderContext.GetTextWidth(aMark), rRenderContext.GetTextHeight());
+ aPt.AdjustX( -(aTextSize.Width() / 2) );
+ aPt.AdjustY(aTextSize.Height() / 2 );
+ rRenderContext.DrawText(aPt, aMark);
+ }
+ // draw horizontal lines
+ for (double fY = m_fMinChunkY; fY < m_fMaxY; fY += m_fChunkY)
+ {
+ drawLine(rRenderContext, m_fMinX, fY, m_fMaxX, fY);
+ // draw tickmarks
+ Point aPt = transform(m_fMinX, fY);
+ o3tl::sprintf(pBuf, "%g", fY);
+ OUString aMark(pBuf, strlen(pBuf), osl_getThreadTextEncoding());
+ Size aTextSize(rRenderContext.GetTextWidth(aMark), rRenderContext.GetTextHeight());
+ aPt.AdjustX( -(aTextSize.Width() + 2) );
+ aPt.AdjustY( -(aTextSize.Height() / 2) );
+ rRenderContext.DrawText(aPt, aMark);
+ }
+
+ // draw boundings
+ drawLine(rRenderContext, m_fMinX, m_fMinY, m_fMaxX, m_fMinY);
+ drawLine(rRenderContext, m_fMinX, m_fMaxY, m_fMaxX, m_fMaxY);
+ drawLine(rRenderContext, m_fMinX, m_fMinY, m_fMinX, m_fMaxY);
+ drawLine(rRenderContext, m_fMaxX, m_fMinY, m_fMaxX, m_fMaxY);
+}
+
+void GridWindow::drawOriginal(vcl::RenderContext& rRenderContext)
+{
+ if (m_nValues && m_pXValues && m_pOrigYValues)
+ {
+ rRenderContext.SetLineColor(COL_RED);
+ for (int i = 0; i < m_nValues - 1; i++)
+ {
+ drawLine(rRenderContext,
+ m_pXValues[i], m_pOrigYValues[i],
+ m_pXValues[i + 1], m_pOrigYValues[i + 1]);
+ }
+ }
+}
+
+void GridWindow::drawNew(vcl::RenderContext& rRenderContext)
+{
+ if (m_nValues && m_pXValues && m_pNewYValues)
+ {
+ rRenderContext.SetClipRegion(vcl::Region(m_aGridArea));
+ rRenderContext.SetLineColor(COL_YELLOW);
+ for (int i = 0; i < m_nValues - 1; i++)
+ {
+ drawLine(rRenderContext,
+ m_pXValues[i], m_pNewYValues[i],
+ m_pXValues[i + 1], m_pNewYValues[i + 1]);
+ }
+ rRenderContext.SetClipRegion();
+ }
+}
+
+void GridWindow::drawHandles(vcl::RenderContext& rRenderContext)
+{
+ for(impHandle & rHandle : m_aHandles)
+ {
+ rHandle.draw(rRenderContext, m_aMarkerBitmap);
+ }
+}
+
+void GridWindow::Paint(vcl::RenderContext& rRenderContext, const tools::Rectangle&)
+{
+ rRenderContext.SetBackground(Wallpaper(Application::GetSettings().GetStyleSettings().GetDialogColor()));
+ drawGrid(rRenderContext);
+ drawOriginal(rRenderContext);
+ drawNew(rRenderContext);
+ drawHandles(rRenderContext);
+}
+
+bool GridWindow::MouseMove( const MouseEvent& rEvt )
+{
+ if( rEvt.GetButtons() != MOUSE_LEFT || m_nDragIndex == npos )
+ return false;
+
+ Point aPoint( rEvt.GetPosPixel() );
+
+ if( m_nDragIndex == 0 || m_nDragIndex == m_aHandles.size() - 1)
+ {
+ aPoint.setX( m_aHandles[m_nDragIndex].maPos.X() );
+ }
+ else
+ {
+ if(aPoint.X() < m_aGridArea.Left())
+ aPoint.setX( m_aGridArea.Left() );
+ else if(aPoint.X() > m_aGridArea.Right())
+ aPoint.setX( m_aGridArea.Right() );
+ }
+
+ if( aPoint.Y() < m_aGridArea.Top() )
+ aPoint.setY( m_aGridArea.Top() );
+ else if( aPoint.Y() > m_aGridArea.Bottom() )
+ aPoint.setY( m_aGridArea.Bottom() );
+
+ if( aPoint != m_aHandles[m_nDragIndex].maPos )
+ {
+ m_aHandles[m_nDragIndex].maPos = aPoint;
+ Invalidate( m_aGridArea );
+ }
+
+ return false;
+}
+
+bool GridWindow::MouseButtonUp( const MouseEvent& rEvt )
+{
+ if( rEvt.GetButtons() == MOUSE_LEFT )
+ {
+ if( m_nDragIndex != npos )
+ {
+ m_nDragIndex = npos;
+ computeNew();
+ Invalidate(m_aGridArea);
+ }
+ }
+
+ return false;
+}
+
+bool GridWindow::MouseButtonDown( const MouseEvent& rEvt )
+{
+ Point aPoint( rEvt.GetPosPixel() );
+ Handles::size_type nMarkerIndex = npos;
+
+ for(Handles::size_type a(0); nMarkerIndex == npos && a < m_aHandles.size(); a++)
+ {
+ if(m_aHandles[a].isHit(GetDrawingArea()->get_ref_device(), aPoint))
+ {
+ nMarkerIndex = a;
+ }
+ }
+
+ if( rEvt.GetButtons() == MOUSE_LEFT )
+ {
+ // user wants to drag a button
+ if( nMarkerIndex != npos )
+ {
+ m_nDragIndex = nMarkerIndex;
+ }
+ }
+ else if( rEvt.GetButtons() == MOUSE_RIGHT )
+ {
+ // user wants to add/delete a button
+ if( nMarkerIndex != npos )
+ {
+ if( nMarkerIndex != 0 && nMarkerIndex != m_aHandles.size() - 1)
+ {
+ // delete marker under mouse
+ if( m_nDragIndex == nMarkerIndex )
+ m_nDragIndex = npos;
+
+ m_aHandles.erase(m_aHandles.begin() + nMarkerIndex);
+ }
+ }
+ else
+ {
+ m_BmOffX = sal_uInt16(m_aMarkerBitmap.GetSizePixel().Width() >> 1);
+ m_BmOffY = sal_uInt16(m_aMarkerBitmap.GetSizePixel().Height() >> 1);
+ m_aHandles.push_back(impHandle(aPoint, m_BmOffX, m_BmOffY));
+ }
+
+ computeNew();
+ Invalidate(m_aGridArea);
+ }
+
+ return false;
+}
+
+void GridWindow::ChangeMode(ResetType nType)
+{
+ switch( nType )
+ {
+ case ResetType::LINEAR_ASCENDING:
+ {
+ for( int i = 0; i < m_nValues; i++ )
+ {
+ m_pNewYValues[ i ] = m_fMinY + (m_fMaxY-m_fMinY)/(m_fMaxX-m_fMinX)*(m_pXValues[i]-m_fMinX);
+ }
+ }
+ break;
+ case ResetType::LINEAR_DESCENDING:
+ {
+ for( int i = 0; i < m_nValues; i++ )
+ {
+ m_pNewYValues[ i ] = m_fMaxY - (m_fMaxY-m_fMinY)/(m_fMaxX-m_fMinX)*(m_pXValues[i]-m_fMinX);
+ }
+ }
+ break;
+ case ResetType::RESET:
+ {
+ if( m_pOrigYValues && m_pNewYValues && m_nValues )
+ memcpy( m_pNewYValues.get(), m_pOrigYValues, m_nValues*sizeof(double) );
+ }
+ break;
+ case ResetType::EXPONENTIAL:
+ {
+ for( int i = 0; i < m_nValues; i++ )
+ {
+ m_pNewYValues[ i ] = m_fMinY + (m_fMaxY-m_fMinY)*(std::expm1((m_pXValues[i]-m_fMinX)/(m_fMaxX-m_fMinX)))/(M_E-1.0);
+ }
+ }
+ break;
+
+ default:
+ break;
+ }
+
+ if (m_pNewYValues)
+ {
+ for(size_t i(0); i < m_aHandles.size(); i++)
+ {
+ // find nearest xvalue
+ double x, y;
+ transform( m_aHandles[i].maPos, x, y );
+ int nIndex = 0;
+ double delta = std::fabs( x-m_pXValues[0] );
+ for( int n = 1; n < m_nValues; n++ )
+ {
+ if( delta > std::fabs( x - m_pXValues[ n ] ) )
+ {
+ delta = std::fabs( x - m_pXValues[ n ] );
+ nIndex = n;
+ }
+ }
+ if( 0 == i )
+ m_aHandles[i].maPos = transform( m_fMinX, m_pNewYValues[ nIndex ] );
+ else if( m_aHandles.size() - 1 == i )
+ m_aHandles[i].maPos = transform( m_fMaxX, m_pNewYValues[ nIndex ] );
+ else
+ m_aHandles[i].maPos = transform( m_pXValues[ nIndex ], m_pNewYValues[ nIndex ] );
+ }
+ }
+
+ Invalidate();
+}
+
+IMPL_LINK_NOARG(GridDialog, ClickButtonHdl, weld::Button&, void)
+{
+ int nType = m_xResetTypeBox->get_active();
+ m_xGridWindow->ChangeMode(static_cast<ResetType>(nType));
+}
+
+double* GridDialog::getNewYValues()
+{
+ return m_xGridWindow->getNewYValues();
+}
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */