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Kimmo Pekkola
197
Library/MeterRoundLine.cpp
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197
Library/MeterRoundLine.cpp
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/*
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Copyright (C) 2002 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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/*
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$Header: /home/cvsroot/Rainmeter/Library/MeterRoundLine.cpp,v 1.1.1.1 2005/07/10 18:51:06 rainy Exp $
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$Log: MeterRoundLine.cpp,v $
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Revision 1.1.1.1 2005/07/10 18:51:06 rainy
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no message
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Revision 1.5 2004/08/13 15:46:50 rainy
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Reminder->Remainder.
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Revision 1.4 2004/07/11 17:18:07 rainy
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Relative coordinate support.
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Revision 1.3 2004/06/05 10:55:54 rainy
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Too much changes to be listed in here...
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Revision 1.2 2003/02/10 18:12:44 rainy
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Now uses GDI+
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Revision 1.1 2002/12/26 18:15:41 rainy
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Initial version
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*/
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#pragma warning(disable: 4996)
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#include "MeterRoundLine.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 <math.h>
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#include <gdiplus.h>
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using namespace Gdiplus;
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#define PI 3.14159265
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/*
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** CMeterRoundLine
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**
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** The constructor
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**
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*/
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CMeterRoundLine::CMeterRoundLine(CMeterWindow* meterWindow) : CMeter(meterWindow)
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{
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m_AntiAlias = false;
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m_LineWidth = 1.0;
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m_LineLength = 20;
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m_LineStart = -1.0;
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m_StartAngle = 0.0;
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m_RotationAngle = 0.0;
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m_ValueRemainder = 0;
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m_Solid = false;
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m_Value = 0.0;
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}
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/*
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** ~CMeterRoundLine
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**
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** The destructor
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**
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*/
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CMeterRoundLine::~CMeterRoundLine()
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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 CMeterRoundLine::ReadConfig(const WCHAR* section)
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{
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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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m_LineWidth = parser.ReadFloat(section, L"LineWidth", 1.0);
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m_LineLength = parser.ReadFloat(section, L"LineLength", 20.0);
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m_LineStart = parser.ReadFloat(section, L"LineStart", -1.0);
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m_StartAngle = parser.ReadFloat(section, L"StartAngle", 0.0);
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m_RotationAngle = parser.ReadFloat(section, L"RotationAngle", 6.2832);
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m_AntiAlias = 0!=parser.ReadInt(section, L"AntiAlias", 0);
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m_ValueRemainder = parser.ReadInt(section, L"ValueReminder", 0); // Typo
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m_ValueRemainder = parser.ReadInt(section, L"ValueRemainder", m_ValueRemainder);
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m_LineColor = parser.ReadColor(section, L"LineColor", Color::Black);
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m_Solid = 0!=parser.ReadInt(section, L"Solid", 0);
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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 CMeterRoundLine::Update()
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{
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if (CMeter::Update() && m_Measure)
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{
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if (m_ValueRemainder > 0)
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{
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LARGE_INTEGER time;
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time.QuadPart = m_Measure->GetValue();
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m_Value = time.QuadPart % m_ValueRemainder;
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m_Value /= (double)m_ValueRemainder;
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}
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else
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{
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m_Value = m_Measure->GetRelativeValue();
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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 CMeterRoundLine::Draw()
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{
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if(!CMeter::Draw()) return false;
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Graphics graphics(m_MeterWindow->GetDoubleBuffer()); //GDI+
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if (m_AntiAlias)
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{
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graphics.SetSmoothingMode(SmoothingModeAntiAlias);
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}
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// Calculate the center of for the line
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int x = GetX();
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int y = GetY();
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REAL cx = (REAL)(x + m_W / 2.0);
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REAL cy = (REAL)(y + m_H / 2.0);
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if (m_Solid)
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{
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if (m_LineStart > 0.0)
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{
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// Create clipping region
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GraphicsPath path;
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path.AddEllipse(REAL(cx - m_LineStart), REAL(cy - m_LineStart), REAL(m_LineStart * 2), REAL(m_LineStart * 2));
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graphics.SetClip(&path, CombineModeExclude);
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}
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// Calculate the center of for the line
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SolidBrush solidBrush(m_LineColor);
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graphics.FillPie(&solidBrush, (REAL)(cx - m_LineLength), (REAL)(cy - m_LineLength), (REAL)(m_LineLength * 2.0), (REAL)(m_LineLength * 2.0), (REAL)(m_StartAngle * 180.0 / PI), (REAL)(m_RotationAngle * m_Value * 180.0 / PI));
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}
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else
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{
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REAL x, y;
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Pen pen(m_LineColor, (REAL)m_LineWidth);
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// Calculate the end point of the line
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double angle = m_RotationAngle * m_Value + m_StartAngle;
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x = (REAL)cos(angle);
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y = (REAL)sin(angle);
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// Set the length
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x = x * (REAL)m_LineLength + cx;
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y = y * (REAL)m_LineLength + cy;
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if (m_LineStart > 0.0)
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{
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cx = (REAL)cos(angle) * (REAL)m_LineStart + cx;
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cy = (REAL)sin(angle) * (REAL)m_LineStart + cy;
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}
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graphics.DrawLine(&pen, cx, cy, x, y);
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}
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return true;
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}
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