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377 lines
7.6 KiB
C++
377 lines
7.6 KiB
C++
/*
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Copyright (C) 2001 Kimmo Pekkola
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This program is free software; you can redistribute it and/or
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modify it under the terms of the GNU General Public License
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as published by the Free Software Foundation; either version 2
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of the License, or (at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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*/
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#include "StdAfx.h"
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#include "MeterLine.h"
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#include "Measure.h"
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#include "Error.h"
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#include <crtdbg.h>
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#include <gdiplus.h>
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using namespace Gdiplus;
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/*
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** CMeterLine
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**
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** The constructor
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**
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*/
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CMeterLine::CMeterLine(CMeterWindow* meterWindow) : CMeter(meterWindow)
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{
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m_Autoscale = false;
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m_HorizontalLines = false;
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m_HorizontalColor = 0;
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m_CurrentPos = 0;
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m_Flip = false;
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m_LineWidth = 1.0;
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}
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/*
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** ~CMeterLine
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**
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** The destructor
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**
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*/
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CMeterLine::~CMeterLine()
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{
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}
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/*
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** Initialize
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**
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** create the buffer for the lines
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**
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*/
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void CMeterLine::Initialize()
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{
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CMeter::Initialize();
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if (m_Colors.size() != m_AllValues.size())
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{
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if (m_Colors.size() > m_AllValues.size())
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{
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size_t num = (!m_AllValues.empty()) ? m_AllValues[0].size() : 0;
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for (size_t i = m_AllValues.size(), end = m_Colors.size(); i < end; i++)
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{
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m_AllValues.push_back(std::vector<double>());
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if (num > 0)
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{
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m_AllValues.back().assign(num, 0);
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}
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}
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}
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else
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{
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m_AllValues.resize(m_Colors.size());
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}
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}
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}
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/*
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** ReadConfig
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**
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** Read the meter-specific configs from the ini-file.
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**
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*/
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void CMeterLine::ReadConfig(const WCHAR* section)
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{
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int i;
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WCHAR tmpName[256];
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// Store the current number of lines so we know if the buffer needs to be updated
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int oldLineCount = (int)m_Colors.size();
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// Read common configs
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CMeter::ReadConfig(section);
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CConfigParser& parser = m_MeterWindow->GetParser();
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int lineCount = parser.ReadInt(section, L"LineCount", 1);
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m_Colors.clear();
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m_ScaleValues.clear();
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m_MeasureNames.clear();
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for (i = 0; i < lineCount; i++)
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{
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if (i == 0)
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{
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wcscpy(tmpName, L"LineColor");
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}
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else
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{
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swprintf(tmpName, L"LineColor%i", i + 1);
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}
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m_Colors.push_back(parser.ReadColor(section, tmpName, Color::White));
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if (i == 0)
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{
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wcscpy(tmpName, L"Scale");
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}
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else
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{
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swprintf(tmpName, L"Scale%i", i + 1);
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}
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m_ScaleValues.push_back(parser.ReadFloat(section, tmpName, 1.0));
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if (i != 0)
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{
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swprintf(tmpName, L"MeasureName%i", i + 1);
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m_MeasureNames.push_back(parser.ReadString(section, tmpName, L""));
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}
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}
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m_Flip = 0!=parser.ReadInt(section, L"Flip", 0);
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m_Autoscale = 0!=parser.ReadInt(section, L"AutoScale", 0);
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m_LineWidth = parser.ReadFloat(section, L"LineWidth", 1.0);
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m_HorizontalLines = 0!=parser.ReadInt(section, L"HorizontalLines", 0);
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m_HorizontalColor = parser.ReadColor(section, L"HorizontalColor", Color::Black); // This is left here for backwards compatibility
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m_HorizontalColor = parser.ReadColor(section, L"HorizontalLineColor", m_HorizontalColor); // This is what it should be
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if (m_Initialized &&
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oldLineCount != lineCount)
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{
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Initialize();
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}
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}
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/*
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** Update
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**
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** Updates the value(s) from the measures.
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**
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*/
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bool CMeterLine::Update()
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{
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if (CMeter::Update() && m_Measure)
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{
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// Collect the values
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if (!m_Measure->IsDisabled())
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{
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double value = m_Measure->GetValue();
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if ((int)m_AllValues[0].size() < m_W)
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{
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m_AllValues[0].push_back(value);
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}
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else
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{
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m_AllValues[0][m_CurrentPos] = value;
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}
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}
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int counter = 1;
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std::vector<CMeasure*>::iterator i = m_Measures.begin();
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for ( ; i != m_Measures.end(); i++)
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{
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double value = (*i)->GetValue();
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if ((int)m_AllValues[counter].size() < m_W)
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{
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m_AllValues[counter].push_back(value);
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}
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else
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{
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m_AllValues[counter][m_CurrentPos] = value;
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}
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counter++;
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}
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m_CurrentPos++;
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if (m_CurrentPos >= m_W)
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{
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m_CurrentPos = 0;
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}
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return true;
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}
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return false;
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}
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/*
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** Draw
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**
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** Draws the meter on the double buffer
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**
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*/
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bool CMeterLine::Draw(Graphics& graphics)
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{
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if(!CMeter::Draw(graphics)) return false;
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double maxValue = 0.0;
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int counter = 0;
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// Find the maximum value
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if (m_Autoscale)
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{
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double newValue = 0;
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std::vector< std::vector<double> >::iterator i = m_AllValues.begin();
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counter = 0;
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for (; i != m_AllValues.end(); i++)
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{
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std::vector<double>::iterator j = (*i).begin();
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for (; j != (*i).end(); j++)
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{
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newValue = max(newValue, (*j) * m_ScaleValues[counter]);
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}
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counter++;
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}
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// Scale the value up to nearest power of 2
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maxValue = 2;
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while(maxValue < newValue && maxValue != 0)
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{
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maxValue *= 2;
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}
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}
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else
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{
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if (m_Measure)
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{
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maxValue = m_Measure->GetMaxValue();
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std::vector<CMeasure*>::iterator i = m_Measures.begin();
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for (; i != m_Measures.end(); i++)
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{
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maxValue = max(maxValue, (*i)->GetMaxValue());
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}
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}
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}
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if (maxValue == 0.0)
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{
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maxValue = 1.0;
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}
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int x = GetX();
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int y = GetY();
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// Draw the horizontal lines
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if (m_HorizontalLines)
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{
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// Calc the max number of lines we should draw
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int maxLines = m_H / 4; // one line per 4 pixels is max
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int numOfLines;
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// Check the highest power of 2 that fits in maxLines
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int power = 2;
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while(power < maxLines)
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{
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power *= 2;
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}
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numOfLines = ((int)maxValue % power) + 1;
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Pen pen(m_HorizontalColor);
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REAL Y;
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for (int j = 0; j < numOfLines; j++)
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{
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Y = (REAL)((j + 1) * m_H / (numOfLines + 1));
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Y = y + m_H - Y - 1;
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graphics.DrawLine(&pen, (REAL)x, Y, (REAL)(x + m_W - 1), Y); // GDI+
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}
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}
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// Draw all the lines
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counter = 0;
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std::vector< std::vector<double> >::iterator i = m_AllValues.begin();
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for (; i != m_AllValues.end(); i++)
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{
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// Draw a line
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int X = x;
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REAL Y = 0;
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REAL oldY = 0;
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int pos = m_CurrentPos;
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if (pos >= m_W) pos = 0;
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Pen pen(m_Colors[counter], (REAL)m_LineWidth);
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for (int j = 0; j < m_W; j++)
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{
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if (pos < (int)(*i).size())
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{
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Y = (REAL)((*i)[pos] * m_ScaleValues[counter] * (m_H - 1) / maxValue);
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Y = min(Y, m_H - 1);
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Y = max(Y, 0);
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}
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else
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{
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Y = 0;
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}
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if (m_Flip)
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{
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Y = y + Y;
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}
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else
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{
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Y = y + m_H - Y - 1;
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}
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if (j != 0)
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{
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graphics.DrawLine(&pen, (REAL)X - 1, oldY, (REAL)X, Y); // GDI+
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}
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oldY = Y;
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X++;
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pos++;
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if (pos >= m_W) pos = 0;
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}
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counter++;
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}
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return true;
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}
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/*
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** BindMeasure
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**
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** Overwritten method to handle the other measure bindings.
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**
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*/
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void CMeterLine::BindMeasure(std::list<CMeasure*>& measures)
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{
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CMeter::BindMeasure(measures);
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std::vector<std::wstring>::iterator j = m_MeasureNames.begin();
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for (; j != m_MeasureNames.end(); j++)
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{
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// Go through the list and check it there is a secondary measure for us
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std::list<CMeasure*>::iterator i = measures.begin();
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for( ; i != measures.end(); i++)
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{
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if(_wcsicmp((*i)->GetName(), (*j).c_str()) == 0)
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{
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m_Measures.push_back(*i);
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break;
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}
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}
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if (i == measures.end())
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{
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throw CError(std::wstring(L"The meter [") + m_Name + L"] cannot be bound with [" + (*j) + L"]!", __LINE__, __FILE__);
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}
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}
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}
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