595 lines
17 KiB
C++
595 lines
17 KiB
C++
/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
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/*
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* This file is part of the LibreOffice project.
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*
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* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/.
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*
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* This file incorporates work covered by the following license notice:
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*
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* Licensed to the Apache Software Foundation (ASF) under one or more
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* contributor license agreements. See the NOTICE file distributed
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* with this work for additional information regarding copyright
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* ownership. The ASF licenses this file to you under the Apache
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* License, Version 2.0 (the "License"); you may not use this file
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* except in compliance with the License. You may obtain a copy of
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* the License at http://www.apache.org/licenses/LICENSE-2.0 .
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*/
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#include <sal/config.h>
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#include <osl/thread.h>
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#include <grid.hrc>
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#include <cstdio>
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#include <math.h>
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#include <cmath>
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#include <grid.hxx>
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#include <algorithm>
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#include <boost/scoped_array.hpp>
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ResId SaneResId( sal_uInt32 );
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/***********************************************************************
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*
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* GridWindow
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*
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***********************************************************************/
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GridWindow::GridWindow(double* pXValues, double* pYValues, int nValues, Window* pParent, bool bCutValues )
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: ModalDialog( pParent, SaneResId( GRID_DIALOG ) ),
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m_aGridArea( 50, 15, 100, 100 ),
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m_pXValues( pXValues ),
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m_pOrigYValues( pYValues ),
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m_nValues( nValues ),
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m_pNewYValues( NULL ),
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m_bCutValues( bCutValues ),
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m_aHandles(),
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m_nDragIndex( 0xffffffff ),
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m_aMarkerBitmap( Bitmap( SaneResId( GRID_DIALOG_HANDLE_BMP ) ), Color( 255, 255, 255 ) ),
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m_aOKButton( this, SaneResId( GRID_DIALOG_OK_BTN ) ),
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m_aCancelButton( this, SaneResId( GRID_DIALOG_CANCEL_BTN ) ),
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m_aResetTypeBox( this, SaneResId( GRID_DIALOG_TYPE_BOX ) ),
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m_aResetButton( this, SaneResId( GRID_DIALOG_RESET_BTN ) )
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{
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sal_uInt16 nPos = m_aResetTypeBox.InsertEntry( SaneResId( RESET_TYPE_LINEAR_ASCENDING ).toString() );
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m_aResetTypeBox.SetEntryData( nPos, (void *)RESET_TYPE_LINEAR_ASCENDING );
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nPos = m_aResetTypeBox.InsertEntry( SaneResId( RESET_TYPE_LINEAR_DESCENDING ).toString() );
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m_aResetTypeBox.SetEntryData( nPos, (void *)RESET_TYPE_LINEAR_DESCENDING );
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nPos = m_aResetTypeBox.InsertEntry( SaneResId( RESET_TYPE_RESET ).toString() );
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m_aResetTypeBox.SetEntryData( nPos, (void *)RESET_TYPE_RESET );
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nPos = m_aResetTypeBox.InsertEntry( SaneResId( RESET_TYPE_EXPONENTIAL ).toString() );
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m_aResetTypeBox.SetEntryData( nPos, (void *)RESET_TYPE_EXPONENTIAL );
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m_aResetTypeBox.SelectEntryPos( 0 );
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m_aResetButton.SetClickHdl( LINK( this, GridWindow, ClickButtonHdl ) );
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SetMapMode( MapMode( MAP_PIXEL ) );
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Size aSize = GetOutputSizePixel();
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Size aBtnSize = m_aOKButton.GetOutputSizePixel();
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m_aGridArea.setWidth( aSize.Width() - aBtnSize.Width() - 80 );
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m_aGridArea.setHeight( aSize.Height() - 40 );
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if( m_pOrigYValues && m_nValues )
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{
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m_pNewYValues = new double[ m_nValues ];
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memcpy( m_pNewYValues, m_pOrigYValues, sizeof( double ) * m_nValues );
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}
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setBoundings( 0, 0, 1023, 1023 );
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computeExtremes();
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// create left and right marker as first and last entry
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m_BmOffX = sal_uInt16(m_aMarkerBitmap.GetSizePixel().Width() >> 1);
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m_BmOffY = sal_uInt16(m_aMarkerBitmap.GetSizePixel().Height() >> 1);
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m_aHandles.push_back(impHandle(transform(findMinX(), findMinY()), m_BmOffX, m_BmOffY));
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m_aHandles.push_back(impHandle(transform(findMaxX(), findMaxY()), m_BmOffX, m_BmOffY));
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FreeResource();
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}
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GridWindow::~GridWindow()
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{
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delete [] m_pNewYValues;
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}
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double GridWindow::findMinX()
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{
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if( ! m_pXValues )
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return 0.0;
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double fMin = m_pXValues[0];
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for( int i = 1; i < m_nValues; i++ )
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if( m_pXValues[ i ] < fMin )
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fMin = m_pXValues[ i ];
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return fMin;
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}
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double GridWindow::findMinY()
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{
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if( ! m_pNewYValues )
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return 0.0;
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double fMin = m_pNewYValues[0];
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for( int i = 1; i < m_nValues; i++ )
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if( m_pNewYValues[ i ] < fMin )
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fMin = m_pNewYValues[ i ];
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return fMin;
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}
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double GridWindow::findMaxX()
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{
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if( ! m_pXValues )
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return 0.0;
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double fMax = m_pXValues[0];
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for( int i = 1; i < m_nValues; i++ )
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if( m_pXValues[ i ] > fMax )
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fMax = m_pXValues[ i ];
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return fMax;
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}
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double GridWindow::findMaxY()
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{
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if( ! m_pNewYValues )
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return 0.0;
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double fMax = m_pNewYValues[0];
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for( int i = 1; i < m_nValues; i++ )
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if( m_pNewYValues[ i ] > fMax )
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fMax = m_pNewYValues[ i ];
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return fMax;
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}
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void GridWindow::computeExtremes()
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{
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if( m_nValues && m_pXValues && m_pOrigYValues )
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{
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m_fMaxX = m_fMinX = m_pXValues[0];
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m_fMaxY = m_fMinY = m_pOrigYValues[0];
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for( int i = 1; i < m_nValues; i++ )
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{
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if( m_pXValues[ i ] > m_fMaxX )
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m_fMaxX = m_pXValues[ i ];
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else if( m_pXValues[ i ] < m_fMinX )
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m_fMinX = m_pXValues[ i ];
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if( m_pOrigYValues[ i ] > m_fMaxY )
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m_fMaxY = m_pOrigYValues[ i ];
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else if( m_pOrigYValues[ i ] < m_fMinY )
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m_fMinY = m_pOrigYValues[ i ];
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}
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setBoundings( m_fMinX, m_fMinY, m_fMaxX, m_fMaxY );
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}
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}
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Point GridWindow::transform( double x, double y )
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{
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Point aRet;
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aRet.X() = (long)( ( x - m_fMinX ) *
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(double)m_aGridArea.GetWidth() / ( m_fMaxX - m_fMinX )
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+ m_aGridArea.Left() );
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aRet.Y() = (long)(
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m_aGridArea.Bottom() -
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( y - m_fMinY ) *
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(double)m_aGridArea.GetHeight() / ( m_fMaxY - m_fMinY ) );
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return aRet;
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}
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void GridWindow::transform( const Point& rOriginal, double& x, double& y )
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{
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x = ( rOriginal.X() - m_aGridArea.Left() ) * (m_fMaxX - m_fMinX) / (double)m_aGridArea.GetWidth() + m_fMinX;
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y = ( m_aGridArea.Bottom() - rOriginal.Y() ) * (m_fMaxY - m_fMinY) / (double)m_aGridArea.GetHeight() + m_fMinY;
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}
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void GridWindow::drawLine( double x1, double y1, double x2, double y2 )
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{
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DrawLine( transform( x1, y1 ), transform( x2, y2 ) );
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}
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void GridWindow::computeChunk( double fMin, double fMax, double& fChunkOut, double& fMinChunkOut )
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{
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// get a nice chunk size like 10, 100, 25 or such
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fChunkOut = ( fMax - fMin ) / 6.0;
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int logchunk = (int)std::log10( fChunkOut );
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int nChunk = (int)( fChunkOut / std::exp( (double)(logchunk-1) * M_LN10 ) );
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if( nChunk >= 75 )
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nChunk = 100;
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else if( nChunk >= 35 )
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nChunk = 50;
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else if ( nChunk > 20 )
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nChunk = 25;
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else if ( nChunk >= 13 )
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nChunk = 20;
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else if( nChunk > 5 )
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nChunk = 10;
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else
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nChunk = 5;
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fChunkOut = (double) nChunk * exp( (double)(logchunk-1) * M_LN10 );
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// compute whole chunks fitting into fMin
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nChunk = (int)( fMin / fChunkOut );
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fMinChunkOut = (double)nChunk * fChunkOut;
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while( fMinChunkOut < fMin )
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fMinChunkOut += fChunkOut;
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}
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void GridWindow::computeNew()
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{
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if(2L == m_aHandles.size())
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{
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// special case: only left and right markers
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double xleft, yleft;
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double xright, yright;
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transform(m_aHandles[0L].maPos, xleft, yleft);
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transform(m_aHandles[1L].maPos, xright, yright );
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double factor = (yright-yleft)/(xright-xleft);
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for( int i = 0; i < m_nValues; i++ )
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{
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m_pNewYValues[ i ] = yleft + ( m_pXValues[ i ] - xleft )*factor;
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}
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}
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else
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{
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// sort markers
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std::sort(m_aHandles.begin(), m_aHandles.end());
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const int nSorted = m_aHandles.size();
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int i;
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// get node arrays
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boost::scoped_array<double> nodex(new double[ nSorted ]);
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boost::scoped_array<double> nodey(new double[ nSorted ]);
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for( i = 0L; i < nSorted; i++ )
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transform( m_aHandles[i].maPos, nodex[ i ], nodey[ i ] );
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for( i = 0; i < m_nValues; i++ )
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{
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double x = m_pXValues[ i ];
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m_pNewYValues[ i ] = interpolate( x, nodex.get(), nodey.get(), nSorted );
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if( m_bCutValues )
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{
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if( m_pNewYValues[ i ] > m_fMaxY )
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m_pNewYValues[ i ] = m_fMaxY;
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else if( m_pNewYValues[ i ] < m_fMinY )
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m_pNewYValues[ i ] = m_fMinY;
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}
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}
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}
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}
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double GridWindow::interpolate(
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double x,
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double* pNodeX,
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double* pNodeY,
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int nNodes )
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{
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// compute Lagrange interpolation
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double ret = 0;
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for( int i = 0; i < nNodes; i++ )
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{
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double sum = pNodeY[ i ];
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for( int n = 0; n < nNodes; n++ )
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{
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if( n != i )
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{
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sum *= x - pNodeX[ n ];
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sum /= pNodeX[ i ] - pNodeX[ n ];
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}
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}
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ret += sum;
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}
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return ret;
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}
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void GridWindow::setBoundings( double fMinX, double fMinY, double fMaxX, double fMaxY )
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{
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m_fMinX = fMinX;
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m_fMinY = fMinY;
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m_fMaxX = fMaxX;
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m_fMaxY = fMaxY;
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computeChunk( m_fMinX, m_fMaxX, m_fChunkX, m_fMinChunkX );
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computeChunk( m_fMinY, m_fMaxY, m_fChunkY, m_fMinChunkY );
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}
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void GridWindow::drawGrid()
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{
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char pBuf[256];
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SetLineColor( Color( COL_BLACK ) );
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// draw vertical lines
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for( double fX = m_fMinChunkX; fX < m_fMaxX; fX += m_fChunkX )
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{
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drawLine( fX, m_fMinY, fX, m_fMaxY );
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// draw tickmarks
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Point aPt = transform( fX, m_fMinY );
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std::sprintf( pBuf, "%g", fX );
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OUString aMark( pBuf, strlen(pBuf), osl_getThreadTextEncoding() );
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Size aTextSize( GetTextWidth( aMark ), GetTextHeight() );
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aPt.X() -= aTextSize.Width()/2;
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aPt.Y() += aTextSize.Height()/2;
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DrawText( aPt, aMark );
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}
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// draw horizontal lines
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for( double fY = m_fMinChunkY; fY < m_fMaxY; fY += m_fChunkY )
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{
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drawLine( m_fMinX, fY, m_fMaxX, fY );
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// draw tickmarks
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Point aPt = transform( m_fMinX, fY );
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std::sprintf( pBuf, "%g", fY );
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OUString aMark( pBuf, strlen(pBuf), osl_getThreadTextEncoding() );
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Size aTextSize( GetTextWidth( aMark ), GetTextHeight() );
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aPt.X() -= aTextSize.Width() + 2;
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aPt.Y() -= aTextSize.Height()/2;
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DrawText( aPt, aMark );
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}
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// draw boundings
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drawLine( m_fMinX, m_fMinY, m_fMaxX, m_fMinY );
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drawLine( m_fMinX, m_fMaxY, m_fMaxX, m_fMaxY );
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drawLine( m_fMinX, m_fMinY, m_fMinX, m_fMaxY );
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drawLine( m_fMaxX, m_fMinY, m_fMaxX, m_fMaxY );
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}
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void GridWindow::drawOriginal()
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{
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if( m_nValues && m_pXValues && m_pOrigYValues )
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{
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SetLineColor( Color( COL_RED ) );
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for( int i = 0; i < m_nValues-1; i++ )
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{
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drawLine( m_pXValues[ i ], m_pOrigYValues[ i ],
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m_pXValues[ i+1 ], m_pOrigYValues[ i+1 ] );
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}
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}
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}
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void GridWindow::drawNew()
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{
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if( m_nValues && m_pXValues && m_pNewYValues )
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{
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SetClipRegion(Region(m_aGridArea));
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SetLineColor( Color( COL_YELLOW ) );
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for( int i = 0; i < m_nValues-1; i++ )
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{
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drawLine( m_pXValues[ i ], m_pNewYValues[ i ],
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m_pXValues[ i+1 ], m_pNewYValues[ i+1 ] );
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}
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SetClipRegion();
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}
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}
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void GridWindow::drawHandles()
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{
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for(sal_uInt32 i(0L); i < m_aHandles.size(); i++)
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{
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m_aHandles[i].draw(*this, m_aMarkerBitmap);
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}
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}
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void GridWindow::Paint( const Rectangle& rRect )
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{
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ModalDialog::Paint( rRect );
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drawGrid();
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drawOriginal();
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drawNew();
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drawHandles();
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}
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void GridWindow::MouseMove( const MouseEvent& rEvt )
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{
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if( rEvt.GetButtons() == MOUSE_LEFT && m_nDragIndex != 0xffffffff )
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{
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Point aPoint( rEvt.GetPosPixel() );
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if( m_nDragIndex == 0L || m_nDragIndex == m_aHandles.size() - 1L)
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{
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aPoint.X() = m_aHandles[m_nDragIndex].maPos.X();
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}
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else
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{
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if(aPoint.X() < m_aGridArea.Left())
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aPoint.X() = m_aGridArea.Left();
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else if(aPoint.X() > m_aGridArea.Right())
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aPoint.X() = m_aGridArea.Right();
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}
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if( aPoint.Y() < m_aGridArea.Top() )
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aPoint.Y() = m_aGridArea.Top();
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else if( aPoint.Y() > m_aGridArea.Bottom() )
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aPoint.Y() = m_aGridArea.Bottom();
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if( aPoint != m_aHandles[m_nDragIndex].maPos )
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{
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m_aHandles[m_nDragIndex].maPos = aPoint;
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Invalidate( m_aGridArea );
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}
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}
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ModalDialog::MouseMove( rEvt );
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}
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void GridWindow::MouseButtonUp( const MouseEvent& rEvt )
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{
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if( rEvt.GetButtons() == MOUSE_LEFT )
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{
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if( m_nDragIndex != 0xffffffff )
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{
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m_nDragIndex = 0xffffffff;
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computeNew();
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Invalidate( m_aGridArea );
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Paint( m_aGridArea );
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}
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}
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ModalDialog::MouseButtonUp( rEvt );
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}
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void GridWindow::MouseButtonDown( const MouseEvent& rEvt )
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{
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Point aPoint( rEvt.GetPosPixel() );
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sal_uInt32 nMarkerIndex = 0xffffffff;
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for(sal_uInt32 a(0L); nMarkerIndex == 0xffffffff && a < m_aHandles.size(); a++)
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{
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if(m_aHandles[a].isHit(*this, aPoint))
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{
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nMarkerIndex = a;
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}
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}
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if( rEvt.GetButtons() == MOUSE_LEFT )
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{
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// user wants to drag a button
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if( nMarkerIndex != 0xffffffff )
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{
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m_nDragIndex = nMarkerIndex;
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}
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}
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else if( rEvt.GetButtons() == MOUSE_RIGHT )
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{
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// user wants to add/delete a button
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if( nMarkerIndex != 0xffffffff )
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{
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if( nMarkerIndex != 0L && nMarkerIndex != m_aHandles.size() - 1L)
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|
{
|
|
// delete marker under mouse
|
|
if( m_nDragIndex == nMarkerIndex )
|
|
m_nDragIndex = 0xffffffff;
|
|
|
|
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 );
|
|
Paint( m_aGridArea );
|
|
}
|
|
|
|
ModalDialog::MouseButtonDown( rEvt );
|
|
}
|
|
|
|
|
|
|
|
IMPL_LINK( GridWindow, ClickButtonHdl, Button*, pButton )
|
|
{
|
|
if( pButton == &m_aResetButton )
|
|
{
|
|
int nType = (int)(sal_IntPtr)m_aResetTypeBox.GetEntryData( m_aResetTypeBox.GetSelectEntryPos() );
|
|
switch( nType )
|
|
{
|
|
case RESET_TYPE_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 RESET_TYPE_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 RESET_TYPE_RESET:
|
|
{
|
|
if( m_pOrigYValues && m_pNewYValues && m_nValues )
|
|
memcpy( m_pNewYValues, m_pOrigYValues, m_nValues*sizeof(double) );
|
|
}
|
|
break;
|
|
case RESET_TYPE_EXPONENTIAL:
|
|
{
|
|
for( int i = 0; i < m_nValues; i++ )
|
|
{
|
|
m_pNewYValues[ i ] = m_fMinY + (m_fMaxY-m_fMinY)*(std::exp((m_pXValues[i]-m_fMinX)/(m_fMaxX-m_fMinX))-1.0)/(M_E-1.0);
|
|
}
|
|
}
|
|
break;
|
|
|
|
default:
|
|
break;
|
|
}
|
|
|
|
if (m_pNewYValues)
|
|
{
|
|
for(sal_uInt32 i(0L); 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() - 1L == i )
|
|
m_aHandles[i].maPos = transform( m_fMaxX, m_pNewYValues[ nIndex ] );
|
|
else
|
|
m_aHandles[i].maPos = transform( m_pXValues[ nIndex ], m_pNewYValues[ nIndex ] );
|
|
}
|
|
}
|
|
|
|
Invalidate( m_aGridArea );
|
|
Paint(Rectangle());
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
|