rainmeter-studio/Library/MeterString.cpp
2010-03-30 22:37:05 +00:00

777 lines
17 KiB
C++

/*
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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*/
#include "StdAfx.h"
#include "MeterString.h"
#include "Rainmeter.h"
#include "Measure.h"
#include "Error.h"
using namespace Gdiplus;
std::map<std::wstring, Gdiplus::FontFamily*> CMeterString::c_FontFamilies;
std::map<std::wstring, Gdiplus::Font*> CMeterString::c_Fonts;
std::wstring StringToUpper(std::wstring str);
std::wstring StringToLower(std::wstring str);
std::wstring StringToProper(std::wstring str);
/*
** CMeterString
**
** The constructor
**
*/
CMeterString::CMeterString(CMeterWindow* meterWindow) : CMeter(meterWindow)
{
m_Color = RGB(255, 255, 255);
m_EffectColor = RGB(0, 0, 0);
m_Effect = EFFECT_NONE;
m_AutoScale = true;
m_Align = ALIGN_LEFT;
m_Font = NULL;
m_FontFamily = NULL;
m_Style = NORMAL;
m_FontSize = 10;
m_Scale = 1.0;
m_NoDecimals = true;
m_Percentual = true;
m_ClipString = false;
m_NumOfDecimals = -1;
m_DimensionsDefined = false;
m_Angle = 0.0;
m_textCase = TEXTCASE_NONE;
}
/*
** ~CMeterString
**
** The destructor
**
*/
CMeterString::~CMeterString()
{
}
/*
** GetX
**
** Returns the X-coordinate of the meter
**
*/
int CMeterString::GetX(bool abs)
{
int x = CMeter::GetX();
if (!abs)
{
switch(m_Align)
{
case ALIGN_CENTER:
x = x - (m_W / 2);
break;
case ALIGN_RIGHT:
x -= m_W;
break;
case ALIGN_LEFT:
// This is already correct
break;
}
}
return x;
}
/*
** Initialize
**
** Create the font that is used to draw the text.
**
*/
void CMeterString::Initialize()
{
CMeter::Initialize();
// Check if the font family is in the cache and use it
std::map<std::wstring, Gdiplus::FontFamily*>::const_iterator iter = c_FontFamilies.find(m_FontFace);
if (iter != c_FontFamilies.end())
{
m_FontFamily = (*iter).second;
}
else
{
m_FontFamily = new FontFamily(m_FontFace.c_str());
Status status = m_FontFamily->GetLastStatus();
// It couldn't find the font family
// Therefore we look in the privatefontcollection of this meters MeterWindow
if(Ok != status)
{
delete m_FontFamily;
m_FontFamily = new FontFamily(m_FontFace.c_str(), m_MeterWindow->GetPrivateFontCollection());
status = m_FontFamily->GetLastStatus();
// It couldn't find the font family: Log it.
if(Ok != status)
{
std::wstring error = L"Error: Couldn't load font family: ";
error += m_FontFace;
DebugLog(error.c_str());
delete m_FontFamily;
m_FontFamily = NULL;
}
}
if(m_FontFamily)
{
c_FontFamilies[m_FontFace] = m_FontFamily;
}
}
FontStyle style = FontStyleRegular;
switch(m_Style)
{
case ITALIC:
style = FontStyleItalic;
break;
case BOLD:
style = FontStyleBold;
break;
case BOLDITALIC:
style = FontStyleBoldItalic;
break;
}
// Adjust the font size with screen DPI
HDC dc = GetDC(GetDesktopWindow());
int dpi = GetDeviceCaps(dc, LOGPIXELSX);
ReleaseDC(GetDesktopWindow(), dc);
REAL size = (REAL)m_FontSize * (96.0f / (REAL)dpi);
std::wstring properties = FontPropertiesToString(m_FontFamily, size, style);
std::map<std::wstring, Gdiplus::Font*>::const_iterator iter2 = c_Fonts.find(properties);
if (iter2 != c_Fonts.end())
{
m_Font = (*iter2).second;
}
else
{
if (m_FontFamily)
{
m_Font = new Gdiplus::Font(m_FontFamily, size, style);
}
else
{
m_Font = new Gdiplus::Font(FontFamily::GenericSansSerif(), size, style);
}
Status status = m_Font->GetLastStatus();
if (Ok == status)
{
c_Fonts[properties] = m_Font;
}
else
{
delete m_Font;
m_Font = NULL;
if (m_FontSize != 0)
{
throw CError(std::wstring(L"Unable to create font: ") + m_FontFace, __LINE__, __FILE__);
}
}
}
}
/*
** ReadConfig
**
** Read the meter-specific configs from the ini-file.
**
*/
void CMeterString::ReadConfig(const WCHAR* section)
{
WCHAR tmpName[256];
// Store the current font values so we know if the font needs to be updated
std::wstring oldFontFace = m_FontFace;
int oldFontSize = m_FontSize;
TEXTSTYLE oldStyle = m_Style;
// Read common configs
CMeter::ReadConfig(section);
CConfigParser& parser = m_MeterWindow->GetParser();
m_MeasureNames.clear();
// Check for extra measures
int i = 2;
bool loop = true;
do
{
swprintf(tmpName, L"MeasureName%i", i);
std::wstring measure = parser.ReadString(section, tmpName, L"");
if (!measure.empty())
{
m_MeasureNames.push_back(measure);
}
else
{
loop = false;
}
++i;
} while(loop);
m_Color = parser.ReadColor(section, L"FontColor", Color::Black);
m_EffectColor = parser.ReadColor(section, L"FontEffectColor", Color::Black);
m_Prefix = parser.ReadString(section, L"Prefix", L"");
m_Postfix = parser.ReadString(section, L"Postfix", L"");
m_Text = parser.ReadString(section, L"Text", L"");
m_Percentual = 0!=parser.ReadInt(section, L"Percentual", 0);
m_AutoScale = 0!=parser.ReadInt(section, L"AutoScale", 0);
m_ClipString = 0!=parser.ReadInt(section, L"ClipString", 0);
m_FontSize = (int)parser.ReadFormula(section, L"FontSize", 10);
if (m_FontSize < 0)
{
m_FontSize = 10;
}
m_NumOfDecimals = parser.ReadInt(section, L"NumOfDecimals", -1);
m_Angle = (Gdiplus::REAL)parser.ReadFloat(section, L"Angle", 0.0);
std::wstring scale;
scale = parser.ReadString(section, L"Scale", L"1");
if (wcschr(scale.c_str(), '.') == NULL)
{
m_NoDecimals = true;
}
else
{
m_NoDecimals = false;
}
m_Scale = wcstod(scale.c_str(), NULL);
m_FontFace = parser.ReadString(section, L"FontFace", L"Arial");
std::wstring align;
align = parser.ReadString(section, L"StringAlign", L"LEFT");
if(_wcsicmp(align.c_str(), L"LEFT") == 0)
{
m_Align = ALIGN_LEFT;
}
else if(_wcsicmp(align.c_str(), L"RIGHT") == 0)
{
m_Align = ALIGN_RIGHT;
}
else if(_wcsicmp(align.c_str(), L"CENTER") == 0)
{
m_Align = ALIGN_CENTER;
}
else
{
throw CError(std::wstring(L"No such StringAlign: ") + align, __LINE__, __FILE__);
}
std::wstring stringCase;
stringCase = parser.ReadString(section, L"StringCase", L"NONE");
if(_wcsicmp(stringCase.c_str(), L"NONE") == 0)
{
m_textCase = TEXTCASE_NONE;
}
else if(_wcsicmp(stringCase.c_str(), L"UPPER") == 0)
{
m_textCase = TEXTCASE_UPPER;
}
else if(_wcsicmp(stringCase.c_str(), L"LOWER") == 0)
{
m_textCase = TEXTCASE_LOWER;
}
else if(_wcsicmp(stringCase.c_str(), L"PROPER") == 0)
{
m_textCase = TEXTCASE_PROPER;
}
std::wstring style;
style = parser.ReadString(section, L"StringStyle", L"NORMAL");
if(_wcsicmp(style.c_str(), L"NORMAL") == 0)
{
m_Style = NORMAL;
}
else if(_wcsicmp(style.c_str(), L"BOLD") == 0)
{
m_Style = BOLD;
}
else if(_wcsicmp(style.c_str(), L"ITALIC") == 0)
{
m_Style = ITALIC;
}
else if(_wcsicmp(style.c_str(), L"BOLDITALIC") == 0)
{
m_Style = BOLDITALIC;
}
else
{
throw CError(std::wstring(L"No such StringStyle: ") + style, __LINE__, __FILE__);
}
std::wstring effect;
effect = parser.ReadString(section, L"StringEffect", L"NONE");
if(_wcsicmp(effect.c_str(), L"NONE") == 0)
{
m_Effect = EFFECT_NONE;
}
else if(_wcsicmp(effect.c_str(), L"SHADOW") == 0)
{
m_Effect = EFFECT_SHADOW;
}
else if(_wcsicmp(effect.c_str(), L"BORDER") == 0)
{
m_Effect = EFFECT_BORDER;
}
else
{
throw CError(std::wstring(L"No such StringEffect: ") + effect, __LINE__, __FILE__);
}
if (-1 != (int)parser.ReadFormula(section, L"W", -1) && -1 != (int)parser.ReadFormula(section, L"H", -1))
{
m_DimensionsDefined = true;
}
if (m_Initialized &&
(oldFontFace != m_FontFace ||
oldFontSize != m_FontSize ||
oldStyle != m_Style))
{
Initialize(); // Recreate the font
}
}
/*
** Update
**
** Updates the value(s) from the measures.
**
*/
bool CMeterString::Update()
{
if (CMeter::Update())
{
std::vector<std::wstring> stringValues;
int decimals = (m_NoDecimals && !m_AutoScale) ? 0 : 1;
if (m_NumOfDecimals != -1) decimals = m_NumOfDecimals;
if (m_Measure) stringValues.push_back(m_Measure->GetStringValue(m_AutoScale, m_Scale, decimals, m_Percentual));
// Get the values for the other measures
for (size_t i = 0; i < m_Measures.size(); ++i)
{
stringValues.push_back(m_Measures[i]->GetStringValue(m_AutoScale, m_Scale, decimals, m_Percentual));
}
// Create the text
m_String = m_Prefix;
if (m_Text.empty())
{
if (stringValues.size() > 0)
{
m_String += stringValues[0];
}
}
else
{
WCHAR buffer[256];
// Create the actual text (i.e. replace %1, %2, .. with the measure texts)
std::wstring tmpText = m_Text;
for (size_t i = 0; i < stringValues.size(); ++i)
{
wsprintf(buffer, L"%%%i", i + 1);
size_t start = 0;
size_t pos = std::wstring::npos;
do
{
pos = tmpText.find(buffer, start);
if (pos != std::wstring::npos)
{
tmpText.replace(tmpText.begin() + pos, tmpText.begin() + pos + wcslen(buffer), stringValues[i]);
start = pos + stringValues[i].length();
}
} while(pos != std::wstring::npos);
}
m_String += tmpText;
}
m_String += m_Postfix;
switch(m_textCase)
{
case TEXTCASE_UPPER:
m_String = StringToUpper(m_String);
break;
case TEXTCASE_LOWER:
m_String = StringToLower(m_String);
break;
case TEXTCASE_PROPER:
m_String = StringToProper(m_String);
break;
}
if (!m_DimensionsDefined)
{
// Calculate the text size
RectF rect;
Graphics graphics(m_MeterWindow->GetDoubleBuffer());
if (DrawString(graphics, &rect))
{
m_W = (int)rect.Width;
m_H = (int)rect.Height;
}
else
{
m_W = 1;
m_H = 1;
}
}
return true;
}
return false;
}
/*
** Draw
**
** Draws the meter on the double buffer
**
*/
bool CMeterString::Draw(Graphics& graphics)
{
if(!CMeter::Draw(graphics)) return false;
return DrawString(graphics, NULL);
}
/*
** DrawString
**
** Draws the string or calculates it's size
**
*/
bool CMeterString::DrawString(Graphics& graphics, RectF* rect)
{
if (m_Font == NULL) return false;
StringFormat stringFormat;
if (m_AntiAlias)
{
graphics.SetTextRenderingHint(TextRenderingHintAntiAlias);
}
else
{
graphics.SetTextRenderingHint(TextRenderingHintSingleBitPerPixelGridFit);
}
switch(m_Align)
{
case ALIGN_CENTER:
stringFormat.SetAlignment(StringAlignmentCenter);
break;
case ALIGN_RIGHT:
stringFormat.SetAlignment(StringAlignmentFar);
break;
case ALIGN_LEFT:
stringFormat.SetAlignment(StringAlignmentNear);
break;
}
REAL x = (REAL)GetX();
REAL y = (REAL)GetY();
if (rect)
{
PointF pos(x, y);
graphics.MeasureString(m_String.c_str(), -1, m_Font, pos, rect);
}
else
{
RectF rc((REAL)x, (REAL)y, (REAL)m_W, (REAL)m_H);
if (m_ClipString)
{
stringFormat.SetTrimming(StringTrimmingEllipsisCharacter);
}
else
{
stringFormat.SetTrimming(StringTrimmingNone);
stringFormat.SetFormatFlags(StringFormatFlagsNoClip | StringFormatFlagsNoWrap);
}
REAL angle = m_Angle * 180.0f / 3.14159265f; // Convert to degrees
graphics.TranslateTransform((Gdiplus::REAL)CMeter::GetX(), y);
graphics.RotateTransform(angle);
graphics.TranslateTransform(-(Gdiplus::REAL)CMeter::GetX(), -y);
if (m_Effect == EFFECT_SHADOW)
{
SolidBrush solidBrush(m_EffectColor);
RectF rcEffect(rc);
rcEffect.Offset(1, 1);
graphics.DrawString(m_String.c_str(), -1, m_Font, rcEffect, &stringFormat, &solidBrush);
}
else if (m_Effect == EFFECT_BORDER)
{
SolidBrush solidBrush(m_EffectColor);
RectF rcEffect(rc);
rcEffect.Offset(0, 1);
graphics.DrawString(m_String.c_str(), -1, m_Font, rcEffect, &stringFormat, &solidBrush);
rcEffect.Offset(1, -1);
graphics.DrawString(m_String.c_str(), -1, m_Font, rcEffect, &stringFormat, &solidBrush);
rcEffect.Offset(-1, -1);
graphics.DrawString(m_String.c_str(), -1, m_Font, rcEffect, &stringFormat, &solidBrush);
rcEffect.Offset(-1, 1);
graphics.DrawString(m_String.c_str(), -1, m_Font, rcEffect, &stringFormat, &solidBrush);
}
SolidBrush solidBrush(m_Color);
graphics.DrawString(m_String.c_str(), -1, m_Font, rc, &stringFormat, &solidBrush);
graphics.ResetTransform();
}
return true;
}
/*
** BindMeasure
**
** Overridden method. The string meters need not to be bound on anything
**
*/
void CMeterString::BindMeasure(std::list<CMeasure*>& measures)
{
if (m_MeasureName.empty()) return; // Allow NULL measure binding
CMeter::BindMeasure(measures);
std::vector<std::wstring>::const_iterator j = m_MeasureNames.begin();
for (; j != m_MeasureNames.end(); ++j)
{
// Go through the list and check it there is a secondary measures for us
std::list<CMeasure*>::const_iterator i = measures.begin();
for( ; i != measures.end(); ++i)
{
if(_wcsicmp((*i)->GetName(), (*j).c_str()) == 0)
{
m_Measures.push_back(*i);
break;
}
}
if (i == measures.end())
{
throw CError(std::wstring(L"The meter [") + m_Name + L"] cannot be bound with [" + (*j) + L"]!", __LINE__, __FILE__);
}
}
}
/*
** FreeFontCache
**
** Static function which frees the font cache.
**
*/
void CMeterString::FreeFontCache()
{
std::map<std::wstring, Gdiplus::FontFamily*>::iterator iter = c_FontFamilies.begin();
for ( ; iter != c_FontFamilies.end(); ++iter)
{
delete (*iter).second;
}
c_FontFamilies.clear();
std::map<std::wstring, Gdiplus::Font*>::iterator iter2 = c_Fonts.begin();
for ( ; iter2 != c_Fonts.end(); ++iter2)
{
delete (*iter2).second;
}
c_Fonts.clear();
}
/*
** FontPropertiesToString
**
** Static helper to convert font properties to a string so it can be used as a key for the cache map.
**
*/
std::wstring CMeterString::FontPropertiesToString(FontFamily* fontFamily, REAL size, FontStyle style)
{
std::wstringstream stream;
stream << size << L"-" << (int)style;
if (fontFamily)
{
WCHAR familyName[LF_FACESIZE];
if (Ok == fontFamily->GetFamilyName(familyName))
{
return std::wstring(familyName) + L"-" + stream.str();
}
}
return stream.str();
}
/*
** FontPropertiesToString
**
** Static helper to convert font properties to a string so it can be used as a key for the cache map.
**
*/
std::wstring StringToUpper(std::wstring str)
{
//change each element of the string to upper case
for(unsigned int i = 0; i < str.length(); ++i)
{
str[i] = toupper( str[i] );
}
return str; //return the converted string
}
std::wstring StringToLower(std::wstring str)
{
//change each element of the string to lower case
for(unsigned int i = 0; i < str.length(); ++i)
{
str[i] = tolower(str[i]);
}
return str;//return the converted string
}
std::wstring StringToProper(std::wstring str)
{
//change each element of the string to lower case
for(unsigned int i = 0; i < str.length(); ++i)
{
if(i == 0)
{
str[i] = toupper( str[i] );
}
else
{
if(str[i-1] == ' ')
{
str[i] = toupper(str[i]);
}
else
{
str[i] = tolower(str[i]);
}
}
}
return str;//return the converted string
}
/*
** EnumerateInstalledFontFamilies
**
** Static helper to log all installed font families.
**
*/
void CMeterString::EnumerateInstalledFontFamilies()
{
INT fontCount;
InstalledFontCollection fontCollection;
if (Ok == fontCollection.GetLastStatus())
{
fontCount = fontCollection.GetFamilyCount();
if (fontCount > 0)
{
INT fontFound;
FontFamily* fontFamilies = new FontFamily[fontCount];
if (Ok == fontCollection.GetFamilies(fontCount, fontFamilies, &fontFound))
{
std::wstring fonts;
for (INT i = 0; i < fontCount; ++i)
{
WCHAR familyName[LF_FACESIZE];
if (Ok == fontFamilies[i].GetFamilyName(familyName))
{
fonts += familyName;
}
else
{
fonts += L"***";
}
fonts += L", ";
}
LSLog(LOG_DEBUG, L"Rainmeter", fonts.c_str());
}
else
{
LSLog(LOG_DEBUG, L"Rainmeter", L"Failed to enumerate installed font families: GetFamilies() failed.");
}
delete [] fontFamilies;
}
else
{
LSLog(LOG_DEBUG, L"Rainmeter", L"There are no installed font families!");
}
}
else
{
LSLog(LOG_DEBUG, L"Rainmeter", L"Failed to enumerate installed font families: InstalledFontCollection() failed.");
}
}
// EOF