Chris Danford
164 lines
4.0 KiB
C++
164 lines
4.0 KiB
C++
#include "stdafx.h"
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/*
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-----------------------------------------------------------------------------
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Class: Font
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Desc: See header.
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Copyright (c) 2001-2002 by the persons listed below. All rights reserved.
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Chris Danford
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-----------------------------------------------------------------------------
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*/
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#include "Font.h"
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#include "IniFile.h"
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#include <stdio.h>
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#include "RageTextureManager.h"
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#include "RageUtil.h"
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#include "RageHelper.h"
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#include "ErrorCatcher/ErrorCatcher.h"
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Font::Font( const CString &sFontFilePath )
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{
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//HELPER.Log( "Font::LoadFromFontName(%s)", sFontFilePath );
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for( int i=0; i<MAX_FONT_CHARS; i++ )
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{
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m_iCharToFrameNo[i] = -1;
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m_iFrameNoToWidth[i] = -1;
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}
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m_iRefCount = 1;
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m_sFontFilePath = sFontFilePath; // save
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//
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// Split for the directory. We'll need it below
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//
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CString sFontDir, sFontFileName, sFontExtension;
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splitrelpath( sFontFilePath, sFontDir, sFontFileName, sFontExtension );
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//
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// Read .font file
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//
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IniFile ini;
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ini.SetPath( m_sFontFilePath );
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if( !ini.ReadFile() )
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FatalError( ssprintf("Error opening Font file '%s'.", m_sFontFilePath) );
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//
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// load texture
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//
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CString sTextureFile = ini.GetValue( "Font", "Texture" );
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if( sTextureFile == "" )
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FatalError( ssprintf("Error reading value 'Texture' from %s.", m_sFontFilePath) );
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m_sTexturePath = sFontDir + sTextureFile; // save the path of the new texture
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m_sTexturePath.MakeLower();
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m_pTexture = TEXTURE->LoadTexture( m_sTexturePath, 0, false );
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assert( m_pTexture != NULL );
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//
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// find out what characters are in this font
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//
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CString sCharacters = ini.GetValue( "Font", "Characters" );
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if( sCharacters != "" ) // the creator supplied characters
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{
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// sanity check
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if( sCharacters.GetLength() != (int)m_pTexture->GetNumFrames() )
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FatalError( "The characters in '%s' does not match the number of frames in the texture.", m_sFontFilePath );
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// set the char to frame number map
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for( int i=0; i<sCharacters.GetLength(); i++ )
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{
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char c = sCharacters[i];
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int iFrameNo = i;
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m_iCharToFrameNo[c] = iFrameNo;
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}
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}
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else // the font file creator did not supply characters. Assume this is a full low ASCII set.
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{
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switch( m_pTexture->GetNumFrames() )
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{
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case 256: // ASCII 0-255
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{
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for( int i=0; i<256; i++ )
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m_iCharToFrameNo[i] = i;
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}
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break;
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case 128: // ASCII 32-159
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{
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for( int i=32; i<160; i++ )
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m_iCharToFrameNo[i] = i-32;
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}
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break;
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default:
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FatalError( "No characters were specified in '%s' and the font is not a standard ASCII set.", m_sFontFilePath );
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}
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}
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m_bCapitalsOnly = ("1" == ini.GetValue("Font", "CapitalsOnly"));
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m_fDrawExtraPercent = (float)ini.GetValueF("Font", "DrawExtraPercent");
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//
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// load character widths
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//
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CString sWidthsValue = ini.GetValue( "Font", "Widths" );
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if( sWidthsValue != "" ) // the creator supplied witdths
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{
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CStringArray arrayCharWidths;
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split( sWidthsValue, ",", arrayCharWidths );
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if( arrayCharWidths.GetSize() != (int)m_pTexture->GetNumFrames() )
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FatalError( ssprintf("The number of widths specified in '%s' (%d) do not match the number of frames in the texture (%u).", m_sFontFilePath, arrayCharWidths.GetSize(), m_pTexture->GetNumFrames()) );
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for( int i=0; i<arrayCharWidths.GetSize(); i++ )
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{
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m_iFrameNoToWidth[i] = atoi( arrayCharWidths[i] );
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}
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}
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else // The font file creator didn't supply widths. Assume each character is the width of the frame.
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{
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for( int i=0; i<(int)m_pTexture->GetNumFrames(); i++ )
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{
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m_iFrameNoToWidth[i] = m_pTexture->GetSourceFrameWidth();
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}
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}
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}
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Font::~Font()
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{
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if( m_pTexture != NULL )
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TEXTURE->UnloadTexture( m_sTexturePath );
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}
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int Font::GetLineWidthInSourcePixels( LPCTSTR szLine, int iLength )
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{
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int iLineWidth = 0;
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for( int i=0; i<iLength; i++ )
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{
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const char c = szLine[i];
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const int iFrameNo = m_iCharToFrameNo[c];
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if( iFrameNo == -1 ) // this font doesn't impelemnt this character
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FatalError( ssprintf("The font '%s' does not implement the character '%c'", m_sFontFilePath, c) );
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iLineWidth += m_iFrameNoToWidth[iFrameNo];
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}
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return iLineWidth;
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}
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