rainmeter-studio/Library/Meter.cpp

/*
  Copyright (C) 2001 Kimmo Pekkola

  This program is free software; you can redistribute it and/or
  modify it under the terms of the GNU General Public License
  as published by the Free Software Foundation; either version 2
  of the License, or (at your option) any later version.

  This program is distributed in the hope that it will be useful,
  but WITHOUT ANY WARRANTY; without even the implied warranty of
  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  GNU General Public License for more details.

  You should have received a copy of the GNU General Public License
  along with this program; if not, write to the Free Software
  Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
*/

#include "StdAfx.h"
#include "Error.h"
#include "Meter.h"
#include "MeterBitmap.h"
#include "MeterBar.h"
#include "MeterHistogram.h"
#include "MeterString.h"
#include "MeterImage.h"
#include "MeterLine.h"
#include "MeterRoundLine.h"
#include "MeterRotator.h"
#include "MeterButton.h"
#include "Measure.h"
#include "Rainmeter.h"

using namespace Gdiplus;

/*
** The constructor
**
*/
CMeter::CMeter(CMeterWindow* meterWindow, const WCHAR* name) : m_MeterWindow(meterWindow), m_Name(name),
	m_Measure(),
	m_X(),
	m_Y(),
	m_W(),
	m_H(),
	m_Hidden(false),
	m_WDefined(false),
	m_HDefined(false),
	m_RelativeMeter(),
	m_DynamicVariables(false),
	m_Transformation(),
	m_ToolTipWidth(),
	m_ToolTipDelay(),
	m_ToolTipType(false),
	m_ToolTipHidden(meterWindow->GetMeterToolTipHidden()),
	m_ToolTipHandle(),
	m_HasMouseAction(false),
	m_MouseActionCursor(meterWindow->GetMeterMouseActionCursor()),
	m_MouseOver(false),
	m_RelativeX(POSITION_ABSOLUTE),
	m_RelativeY(POSITION_ABSOLUTE),
	m_UpdateDivider(1),
	m_UpdateCounter(1),
	m_SolidBevel(BEVELTYPE_NONE),
	m_SolidAngle(),
	m_AntiAlias(false),
	m_Initialized(false)
{
}

/*
** The destructor
**
*/
CMeter::~CMeter()
{
	delete m_Transformation;

	if (m_ToolTipHandle != NULL)
	{
		DestroyWindow(m_ToolTipHandle);
	}
}

/*
** Initializes the meter. The base implementation just stores the pointer.
** Usually this method is overwritten by the inherited classes, which load
** bitmaps and such things during initialization.
**
*/
void CMeter::Initialize()
{
	m_Initialized = true;
}

/*
** Returns the X-position of the meter.
**
*/
int CMeter::GetX(bool abs)
{
	if (m_RelativeX != POSITION_ABSOLUTE)
	{
		if (m_RelativeMeter == NULL)
		{
			const std::list<CMeter*>& meters = m_MeterWindow->GetMeters();
			std::list<CMeter*>::const_iterator iter = meters.begin();

			// Find this meter
			for ( ; iter != meters.end(); ++iter)
			{
				if (*iter == this && iter != meters.begin())
				{
					--iter;
					m_RelativeMeter = (*iter);
					if (m_RelativeX == POSITION_RELATIVE_TL)
					{
						return m_RelativeMeter->GetX(true) + m_X;
					}
					else
					{
						return m_RelativeMeter->GetX(true) + m_RelativeMeter->GetW() + m_X;
					}
				}
			}
		}
		else
		{
			if (m_RelativeX == POSITION_RELATIVE_TL)
			{
				return m_RelativeMeter->GetX(true) + m_X;
			}
			else
			{
				return m_RelativeMeter->GetX(true) + m_RelativeMeter->GetW() + m_X;
			}
		}
	}
	return m_X;
}

/*
** Returns the Y-position of the meter.
**
*/
int CMeter::GetY(bool abs)
{
	if (m_RelativeY != POSITION_ABSOLUTE)
	{
		if (m_RelativeMeter == NULL)
		{
			const std::list<CMeter*>& meters = m_MeterWindow->GetMeters();
			std::list<CMeter*>::const_iterator iter = meters.begin();

			// Find this meter
			for ( ; iter != meters.end(); ++iter)
			{
				if (*iter == this && iter != meters.begin())
				{
					--iter;
					m_RelativeMeter = (*iter);
					if (m_RelativeY == POSITION_RELATIVE_TL)
					{
						return m_RelativeMeter->GetY() + m_Y;
					}
					else
					{
						return m_RelativeMeter->GetY() + m_RelativeMeter->GetH() + m_Y;
					}
				}
			}
		}
		else
		{
			if (m_RelativeY == POSITION_RELATIVE_TL)
			{
				return m_RelativeMeter->GetY() + m_Y;
			}
			else
			{
				return m_RelativeMeter->GetY() + m_RelativeMeter->GetH() + m_Y;
			}
		}
	}
	return m_Y;
}

/*
** Returns a RECT containing the dimensions of the meter within the MeterWindow
**
*/
RECT CMeter::GetMeterRect()
{
	RECT meterRect;

	meterRect.left = GetX();
	meterRect.top = GetY();
	meterRect.right = meterRect.left + m_W;
	meterRect.bottom = meterRect.top + m_H;

	return meterRect;
}

/*
** Checks if the given point is inside the meter.
**
*/
bool CMeter::HitTest(int x, int y)
{
	if (x >= GetX() && x < GetX() + GetW() && y >= GetY() && y < GetY() + GetH())
	{
		return true;
	}
	return false;
}

/*
** Shows the meter and tooltip.
**
*/
void CMeter::Show()
{
	m_Hidden = false;

	if (m_ToolTipHandle != NULL)
	{
		if (!m_ToolTipHidden)
		{
			SendMessage(m_ToolTipHandle, TTM_ACTIVATE, TRUE, NULL);
		}
	}
}

/*
** Hides the meter and tooltip.
**
*/
void CMeter::Hide()
{
	m_Hidden = true;

	if (m_ToolTipHandle != NULL)
	{
		SendMessage(m_ToolTipHandle, TTM_ACTIVATE, FALSE, NULL);
	}
}

/*
** Reads the meter-specific configs from the ini-file. The base implementation
** reads the common settings for all meters. The inherited classes must call
** the base implementation if they overwrite this method.
**
*/
void CMeter::ReadConfig(CConfigParser& parser, const WCHAR* section)
{
	// The MeterStyle defines a template where the values are read if the meter doesn't have it itself
	const std::wstring& style = parser.ReadString(section, L"MeterStyle", L"");
	if (!style.empty())
	{
		parser.SetStyleTemplate(style);
	}

	std::wstring oldStyleX = m_StyleX;
	std::wstring oldStyleY = m_StyleY;
	std::wstring oldStyleHidden = m_StyleHidden;

	std::wstring coord = parser.ReadString(section, L"X", L"0");
	m_StyleX = parser.GetLastUsedStyle();
	if (!m_Initialized || parser.GetLastReplaced() || wcscmp(m_StyleX.c_str(), oldStyleX.c_str()) != 0)
	{
		if (!coord.empty())
		{
			size_t len = coord.size();
			if (coord[len - 1] == L'r')
			{
				m_RelativeX = POSITION_RELATIVE_TL;
				coord.erase(--len);
			}
			else if (coord[len - 1] == L'R')
			{
				m_RelativeX = POSITION_RELATIVE_BR;
				coord.erase(--len);
			}
			else
			{
				m_RelativeX = POSITION_ABSOLUTE;
			}

			double val;
			if (len >= 2 && coord[0] == L'(' && coord[len - 1] == L')' && parser.ParseFormula(coord, &val))
			{
				m_X = (int)val;
			}
			else
			{
				m_X = (int)parser.ParseDouble(coord.c_str(), 0.0);
			}
		}
		else
		{
			m_X = 0;
			m_RelativeX = POSITION_ABSOLUTE;
		}
	}

	coord = parser.ReadString(section, L"Y", L"0");
	m_StyleY = parser.GetLastUsedStyle();
	if (!m_Initialized || parser.GetLastReplaced() || wcscmp(m_StyleY.c_str(), oldStyleY.c_str()) != 0)
	{
		if (!coord.empty())
		{
			size_t len = coord.size();
			if (coord[len - 1] == L'r')
			{
				m_RelativeY = POSITION_RELATIVE_TL;
				coord.erase(--len);
			}
			else if (coord[len - 1] == L'R')
			{
				m_RelativeY = POSITION_RELATIVE_BR;
				coord.erase(--len);
			}
			else
			{
				m_RelativeY = POSITION_ABSOLUTE;
			}

			double val;
			if (len >= 2 && coord[0] == L'(' && coord[len - 1] == L')' && parser.ParseFormula(coord, &val))
			{
				m_Y = (int)val;
			}
			else
			{
				m_Y = (int)parser.ParseDouble(coord.c_str(), 0.0);
			}
		}
		else
		{
			m_Y = 0;
			m_RelativeY = POSITION_ABSOLUTE;
		}
	}

	m_W = (int)parser.ReadFormula(section, L"W", 1.0);
	m_WDefined = parser.GetLastValueDefined();

	m_H = (int)parser.ReadFormula(section, L"H", 1.0);
	m_HDefined = parser.GetLastValueDefined();

	const std::wstring& hidden = parser.ReadString(section, L"Hidden", L"0");
	m_StyleHidden = parser.GetLastUsedStyle();
	if (!m_Initialized || parser.GetLastReplaced() || wcscmp(m_StyleHidden.c_str(), oldStyleHidden.c_str()) != 0)
	{
		m_Hidden = 0!=parser.ParseInt(hidden.c_str(), 0);
	}

	if (!m_Initialized)
	{
		m_MeasureName = parser.ReadString(section, L"MeasureName", L"");
	}

	m_SolidBevel = (BEVELTYPE)parser.ReadInt(section, L"BevelType", BEVELTYPE_NONE);

	m_SolidColor = parser.ReadColor(section, L"SolidColor", Color::MakeARGB(0, 0, 0, 0));
	m_SolidColor2 = parser.ReadColor(section, L"SolidColor2", m_SolidColor.GetValue());
	m_SolidAngle = (Gdiplus::REAL)parser.ReadFloat(section, L"GradientAngle", 0.0);

	m_LeftMouseDownAction = parser.ReadString(section, L"LeftMouseDownAction", L"", false);
	m_RightMouseDownAction = parser.ReadString(section, L"RightMouseDownAction", L"", false);
	m_MiddleMouseDownAction = parser.ReadString(section, L"MiddleMouseDownAction", L"", false);
	m_LeftMouseUpAction = parser.ReadString(section, L"LeftMouseUpAction", L"", false);
	m_RightMouseUpAction = parser.ReadString(section, L"RightMouseUpAction", L"", false);
	m_MiddleMouseUpAction = parser.ReadString(section, L"MiddleMouseUpAction", L"", false);
	m_LeftMouseDoubleClickAction = parser.ReadString(section, L"LeftMouseDoubleClickAction", L"", false);
	m_RightMouseDoubleClickAction = parser.ReadString(section, L"RightMouseDoubleClickAction", L"", false);
	m_MiddleMouseDoubleClickAction = parser.ReadString(section, L"MiddleMouseDoubleClickAction", L"", false);
	m_MouseOverAction = parser.ReadString(section, L"MouseOverAction", L"", false);
	m_MouseLeaveAction = parser.ReadString(section, L"MouseLeaveAction", L"", false);

	m_MouseActionCursor = 0!=parser.ReadInt(section, L"MouseActionCursor", m_MeterWindow->GetMeterMouseActionCursor());

	m_HasMouseAction =
		( !m_LeftMouseUpAction.empty() || !m_LeftMouseDownAction.empty() || !m_LeftMouseDoubleClickAction.empty()
		|| !m_MiddleMouseUpAction.empty() || !m_MiddleMouseDownAction.empty() || !m_MiddleMouseDoubleClickAction.empty()
		|| !m_RightMouseUpAction.empty() || !m_RightMouseDownAction.empty() || !m_RightMouseDoubleClickAction.empty() );

	m_ToolTipText = parser.ReadString(section, L"ToolTipText", L"");
	m_ToolTipTitle = parser.ReadString(section, L"ToolTipTitle", L"");
	m_ToolTipIcon = parser.ReadString(section, L"ToolTipIcon", L"");
	m_ToolTipWidth = (int)parser.ReadFormula(section, L"ToolTipWidth", 1000);
	m_ToolTipType = 0!=parser.ReadInt(section, L"ToolTipType", 0);
	m_ToolTipHidden = 0!=parser.ReadInt(section, L"ToolTipHidden", m_MeterWindow->GetMeterToolTipHidden());

	int updateDivider = parser.ReadInt(section, L"UpdateDivider", 1);
	if (updateDivider != m_UpdateDivider)
	{
		m_UpdateCounter = m_UpdateDivider = updateDivider;
	}

	m_AntiAlias = 0!=parser.ReadInt(section, L"AntiAlias", 0);
	m_DynamicVariables = 0!=parser.ReadInt(section, L"DynamicVariables", 0);

	std::vector<Gdiplus::REAL> matrix = parser.ReadFloats(section, L"TransformationMatrix");
	if (matrix.size() == 6)
	{
		if (m_Transformation)
		{
			m_Transformation->SetElements(matrix[0], matrix[1], matrix[2], matrix[3], matrix[4], matrix[5]);
		}
		else
		{
			m_Transformation = new Matrix(matrix[0], matrix[1], matrix[2], matrix[3], matrix[4], matrix[5]);
		}
	}
	else if (!matrix.empty())
	{
		delete m_Transformation;
		m_Transformation = NULL;

		LogWithArgs(LOG_ERROR, L"Meter: Incorrect number of values in TransformationMatrix=%s", parser.ReadString(section, L"TransformationMatrix", L"").c_str());
	}

	const std::wstring& group = parser.ReadString(section, L"Group", L"");
	InitializeGroup(group);
}

/*
** Binds this meter to the given measure. The same measure can be bound to
** several meters but one meter and only be bound to one measure.
**
*/
void CMeter::BindMeasure(const std::list<CMeasure*>& measures)
{
	// The meter is not bound to anything
	if (m_MeasureName.empty())
	{
		std::wstring error = L"The meter [" + m_Name;
		error += L"] is unbound";
		throw CError(error);
	}

	// Go through the list and check it there is a measure for us
	const WCHAR* measure = m_MeasureName.c_str();
	std::list<CMeasure*>::const_iterator i = measures.begin();
	for ( ; i != measures.end(); ++i)
	{
		if (_wcsicmp((*i)->GetName(), measure) == 0)
		{
			m_Measure = (*i);
			return;
		}
	}

	// Error :)
	std::wstring error = L"The meter [" + m_Name;
	error += L"] cannot be bound with [";
	error += m_MeasureName;
	error += L']';
	throw CError(error);
}

/*
** Creates the given meter. This is the factory method for the meters.
** If new meters are implemented this method needs to be updated.
**
*/
CMeter* CMeter::Create(const WCHAR* meter, CMeterWindow* meterWindow, const WCHAR* name)
{
	if (_wcsicmp(L"STRING", meter) == 0)
	{
		return new CMeterString(meterWindow, name);
	}
	else if (_wcsicmp(L"IMAGE", meter) == 0)
	{
		return new CMeterImage(meterWindow, name);
	}
	else if (_wcsicmp(L"HISTOGRAM", meter) == 0)
	{
		return new CMeterHistogram(meterWindow, name);
	}
	else if (_wcsicmp(L"BAR", meter) == 0)
	{
		return new CMeterBar(meterWindow, name);
	}
	else if (_wcsicmp(L"BITMAP", meter) == 0)
	{
		return new CMeterBitmap(meterWindow, name);
	}
	else if (_wcsicmp(L"LINE", meter) == 0)
	{
		return new CMeterLine(meterWindow, name);
	}
	else if (_wcsicmp(L"ROUNDLINE", meter) == 0)
	{
		return new CMeterRoundLine(meterWindow, name);
	}
	else if (_wcsicmp(L"ROTATOR", meter) == 0)
	{
		return new CMeterRotator(meterWindow, name);
	}
	else if (_wcsicmp(L"BUTTON", meter) == 0)
	{
		return new CMeterButton(meterWindow, name);
	}

	// Error
	std::wstring error = L"Meter=";
	error += meter;
	error += L" is not valid in [";
	error += name;
	error += L']';
	throw CError(error);

	return NULL;
}

/*
** Updates the value(s) from the measures. Derived classes should
** only update if this returns true;
*/
bool CMeter::Update()
{
	// Only update the meter's value when the divider is equal to the counter
	++m_UpdateCounter;
	if (m_UpdateCounter < m_UpdateDivider) return false;
	m_UpdateCounter = 0;

	return true;
}

/*
** Creates a vector containing all the defined measures (for Histogram)
*/
void CMeter::SetAllMeasures(CMeasure* measure)
{
	m_AllMeasures.clear();
	m_AllMeasures.reserve(2);
	m_AllMeasures.push_back(m_Measure);
	m_AllMeasures.push_back(measure);
}

/*
** Creates a vector containing all the defined measures (for Image/Line/String)
*/
void CMeter::SetAllMeasures(const std::vector<CMeasure*>& measures)
{
	m_AllMeasures.clear();
	m_AllMeasures.reserve(1 + measures.size());
	m_AllMeasures.push_back(m_Measure);

	std::vector<CMeasure*>::const_iterator i = measures.begin();
	for ( ; i != measures.end(); ++i)
	{
		m_AllMeasures.push_back(*i);
	}
}

/*
** Reads measure names (MeasureName2 - MeasureName[N])
*/
void CMeter::ReadMeasureNames(CConfigParser& parser, const WCHAR* section, std::vector<std::wstring>& measureNames)
{
	WCHAR tmpName[64];

	int i = 2;
	bool loop = true;
	do
	{
		_snwprintf_s(tmpName, _TRUNCATE, L"MeasureName%i", i);
		const std::wstring& measure = parser.ReadString(section, tmpName, L"");
		if (!measure.empty())
		{
			measureNames.push_back(measure);
		}
		else
		{
			loop = false;
		}
		++i;
	}
	while(loop);
}

/*
** Replaces %1, %2 etc with the corresponding measure value
*/
bool CMeter::ReplaceMeasures(const std::vector<std::wstring>& stringValues, std::wstring& str)
{
	bool replaced = false;

	if (str.find(L'%') != std::wstring::npos)
	{
		WCHAR buffer[64];

		// Create the actual text (i.e. replace %1, %2, .. with the measure texts)
		for (size_t i = stringValues.size(); i > 0; --i)
		{
			size_t len = _snwprintf_s(buffer, _TRUNCATE, L"%%%i", (int)i);
			size_t start = 0, pos;
			do
			{
				pos = str.find(buffer, start, len);
				if (pos != std::wstring::npos)
				{
					str.replace(pos, len, stringValues[i - 1]);
					start = pos + stringValues[i - 1].length();
					replaced = true;
				}
			}
			while (pos != std::wstring::npos);
		}
	}

	return replaced;
}

/*
** Replaces %1, %2 etc with the corresponding measure value
*/
void CMeter::ReplaceToolTipMeasures(std::wstring& str)
{
	std::vector<std::wstring> stringValues;

	if (!m_AllMeasures.empty())
	{
		// Get the values for the measures
		std::vector<CMeasure*>::const_iterator iter = m_AllMeasures.begin();
		for ( ; iter != m_AllMeasures.end(); ++iter)
		{
			stringValues.push_back((*iter)->GetStringValue(AUTOSCALE_ON, 1, 0, false));
		}
	}
	else if (m_Measure != NULL)
	{
		stringValues.push_back(m_Measure->GetStringValue(AUTOSCALE_ON, 1, 0, false));
	}
	else
	{
		return;
	}

	if (!stringValues.empty())
	{
		ReplaceMeasures(stringValues, str);
	}
}

/*
** Does the initial construction of the ToolTip for the meter
*/
void CMeter::CreateToolTip(CMeterWindow* meterWindow)
{
	HWND hMeterWindow = m_MeterWindow->GetWindow();
	HINSTANCE hInstance = m_MeterWindow->GetMainObject()->GetInstance();
	DWORD style = WS_POPUP | TTS_NOPREFIX | TTS_ALWAYSTIP;

	if (m_ToolTipType)
	{
		style |= TTS_BALLOON;
	}

	HWND hwndTT = CreateWindowEx(WS_EX_TOPMOST,
		TOOLTIPS_CLASS,
		NULL,
		style,
		CW_USEDEFAULT,
		CW_USEDEFAULT,
		CW_USEDEFAULT,
		CW_USEDEFAULT,
		hMeterWindow,
		NULL,
		hInstance,
		NULL);

	if (hwndTT)
	{
		SetWindowPos(hwndTT, HWND_TOPMOST, 0, 0, 0, 0, SWP_NOMOVE | SWP_NOSIZE | SWP_NOACTIVATE);

		TOOLINFO ti = {sizeof(TOOLINFO), TTF_SUBCLASS, hMeterWindow, 0, GetMeterRect(), hInstance};

		SendMessage(hwndTT, TTM_ADDTOOL, NULL, (LPARAM) (LPTOOLINFO) &ti);

		m_ToolTipHandle = hwndTT;
		UpdateToolTip();
	}
}

/*
** Updates the ToolTip to match new values
*/
void CMeter::UpdateToolTip()
{
	HWND hwndTT = m_ToolTipHandle;

	TOOLINFO ti = {sizeof(TOOLINFO)};
	ti.hwnd = m_MeterWindow->GetWindow();

	SendMessage(hwndTT, TTM_GETTOOLINFO, NULL, (LPARAM)&ti);

	std::wstring text = m_ToolTipText;
	ReplaceToolTipMeasures(text);
	ti.lpszText = (LPTSTR)text.c_str();
	ti.rect = GetMeterRect();

	SendMessage(hwndTT, TTM_SETTOOLINFO, NULL, (LPARAM)&ti);
	SendMessage(hwndTT, TTM_SETMAXTIPWIDTH, NULL, m_ToolTipWidth);

	if (!m_ToolTipTitle.empty())
	{
		HICON hIcon = NULL;
		bool destroy = false;

		if (!m_ToolTipIcon.empty())
		{
			const WCHAR* tipIcon = m_ToolTipIcon.c_str();
			if (_wcsicmp(tipIcon, L"INFO") == 0)
			{
				hIcon = (HICON)TTI_INFO;
			}
			else if (_wcsicmp(tipIcon, L"WARNING") == 0)
			{
				hIcon = (HICON)TTI_WARNING;
			}
			else if (_wcsicmp(tipIcon, L"ERROR") == 0)
			{
				hIcon = (HICON)TTI_ERROR;
			}
			else if (_wcsicmp(tipIcon, L"QUESTION") == 0)
			{
				hIcon = LoadIcon(NULL, IDI_QUESTION);
			}
			else if (_wcsicmp(tipIcon, L"SHIELD") == 0)
			{
				hIcon = LoadIcon(NULL, IDI_SHIELD);
			}
			else
			{
				hIcon = (HICON)LoadImage(NULL, tipIcon, IMAGE_ICON, 0, 0, LR_LOADFROMFILE);
				destroy = true;
			}
		}

		text = m_ToolTipTitle;
		ReplaceToolTipMeasures(text);
		SendMessage(hwndTT, TTM_SETTITLE, (WPARAM) hIcon, (LPARAM)text.c_str());

		if (destroy)
		{
			DestroyIcon(hIcon);
		}
	}

	if (m_ToolTipHidden)
	{
		SendMessage(hwndTT, TTM_ACTIVATE, FALSE, NULL);
	}
	else
	{
		SendMessage(hwndTT, TTM_ACTIVATE, !IsHidden(), NULL);
	}
}

/*
** Draws the solid background & bevel if such are defined
*/
bool CMeter::Draw(Graphics& graphics)
{
	if (IsHidden()) return false;

	graphics.SetInterpolationMode(InterpolationModeDefault);
	graphics.SetCompositingQuality(CompositingQualityDefault);

	if (m_AntiAlias)
	{
		graphics.SetSmoothingMode(SmoothingModeHighQuality);
		graphics.SetPixelOffsetMode(PixelOffsetModeHighQuality);
	}
	else
	{
		graphics.SetSmoothingMode(SmoothingModeNone);
		graphics.SetPixelOffsetMode(PixelOffsetModeDefault);
	}

	if (m_SolidColor.GetA() != 0 || m_SolidColor2.GetA() != 0)
	{
		int x = GetX();
		int y = GetY();

		Rect r(x, y, m_W, m_H);

		if (m_SolidColor.GetValue() == m_SolidColor2.GetValue())
		{
			SolidBrush solid(m_SolidColor);
			graphics.FillRectangle(&solid, r);
		}
		else
		{
			if (!m_AntiAlias)
			{
				// Fix the tiling issue in some GradientAngle values
				graphics.SetPixelOffsetMode(PixelOffsetModeHalf);
			}

			LinearGradientBrush gradient(r, m_SolidColor, m_SolidColor2, m_SolidAngle, TRUE);
			graphics.FillRectangle(&gradient, r);

			if (!m_AntiAlias)
			{
				graphics.SetPixelOffsetMode(PixelOffsetModeDefault);
			}
		}
	}

	if (m_SolidBevel != BEVELTYPE_NONE)
	{
		int x = GetX();
		int y = GetY();

		Color lightColor(255, 255, 255, 255);
		Color darkColor(255, 0, 0, 0);

		if (m_SolidBevel == BEVELTYPE_DOWN)
		{
			lightColor.SetValue(Color::MakeARGB(255, 0, 0, 0));
			darkColor.SetValue(Color::MakeARGB(255, 255, 255, 255));
		}

		Pen light(lightColor);
		Pen dark(darkColor);

		// The bevel is drawn outside the meter
		Rect rect(x - 2, y - 2, m_W + 4, m_H + 4);
		DrawBevel(graphics, rect, light, dark);
	}

	return true;
}

/*
** Draws a bevel inside the given area
*/
void CMeter::DrawBevel(Graphics& graphics, const Rect& rect, const Pen& light, const Pen& dark)
{
	int l = rect.GetLeft();
	int r = rect.GetRight() - 1;
	int t = rect.GetTop();
	int b = rect.GetBottom() - 1;

	graphics.DrawLine(&light, l,     t,     l,     b);
	graphics.DrawLine(&light, l,     t,     r,     t);
	graphics.DrawLine(&light, l + 1, t + 1, l + 1, b - 1);
	graphics.DrawLine(&light, l + 1, t + 1, r - 1, t + 1);
	graphics.DrawLine(&dark,  l,     b,     r,     b);
	graphics.DrawLine(&dark,  r,     t,     r,     b);
	graphics.DrawLine(&dark,  l + 1, b - 1, r - 1, b - 1);
	graphics.DrawLine(&dark,  r - 1, t + 1, r - 1, b - 1);
}