Files
glest-source/source/shared_lib/sources/graphics/font.cpp
Mark Vejvoda 3b8dd289ac - updated cmake to check for support of backtraces in gcc compiler
- fixed numerous bugs / warnings from cppcheck
2012-04-16 19:29:37 +00:00

444 lines
12 KiB
C++

// ==============================================================
// This file is part of Glest Shared Library (www.glest.org)
//
// Copyright (C) 2001-2007 Martio Figueroa
//
// You can redistribute this code 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
// ==============================================================
#include "font.h"
#include <stdexcept>
#include "conversion.h"
#ifdef USE_FTGL
#include "font_textFTGL.h"
#include <vector>
#include <algorithm>
using namespace Shared::Graphics::Gl;
#endif
#ifdef USE_FREETYPEGL
#include "font_text_freetypegl.h"
#endif
#ifdef HAVE_FONTCONFIG
#include <fontconfig/fontconfig.h>
#endif
#include "util.h"
#include "platform_common.h"
#include "platform_util.h"
#include "leak_dumper.h"
using namespace std;
using namespace Shared::Util;
using namespace Shared::PlatformCommon;
namespace Shared { namespace Graphics {
// Init statics
int Font::charCount = 256;
std::string Font::fontTypeName = "Times New Roman";
bool Font::fontIsMultibyte = false;
bool Font::forceLegacyFonts = false;
bool Font::fontIsRightToLeft = false;
bool Font::forceFTGLFonts = false;
// This value is used to scale the font text rendering
// in 3D render mode
float Font::scaleFontValue = 0.80f;
// This value is used for centering font text vertically (height)
float Font::scaleFontValueCenterHFactor = 4.0f;
//float Font::scaleFontValue = 1.0;
//float Font::scaleFontValueCenterHFactor = 4.0;
int Font::baseSize = 3;
int Font::faceResolution = 72;
string Font::langHeightText = "yW";
//
void Font::resetToDefaults() {
Font::charCount = 256;
Font::fontTypeName = "Times New Roman";
Font::fontIsMultibyte = false;
//Font::forceLegacyFonts = false;
Font::fontIsRightToLeft = false;
// This value is used to scale the font text rendering
// in 3D render mode
Font::scaleFontValue = 0.80f;
// This value is used for centering font text vertically (height)
Font::scaleFontValueCenterHFactor = 4.0f;
//float Font::scaleFontValue = 1.0;
//float Font::scaleFontValueCenterHFactor = 4.0;
Font::baseSize = 3;
Font::faceResolution = 72;
Font::langHeightText = "yW";
#if defined(WIN32)
string newEnvValue = "MEGAGLEST_FONT=";
_putenv(newEnvValue.c_str());
newEnvValue = "MEGAGLEST_FONT_FAMILY=";
_putenv(newEnvValue.c_str());
#else
unsetenv("MEGAGLEST_FONT");
unsetenv("MEGAGLEST_FONT_FAMILY");
#endif
}
// =====================================================
// class FontMetrics
// =====================================================
FontMetrics::FontMetrics(Text *textHandler) {
this->textHandler = textHandler;
this->widths = new float[Font::charCount];
this->height = 0;
for(int i=0; i < Font::charCount; ++i) {
widths[i]= 0;
}
}
FontMetrics::~FontMetrics() {
delete [] widths;
widths = NULL;
}
void FontMetrics::setTextHandler(Text *textHandler) {
this->textHandler = textHandler;
}
Text * FontMetrics::getTextHandler() {
return this->textHandler;
}
float FontMetrics::getTextWidth(const string &str) {
if(textHandler != NULL) {
//printf("str [%s] textHandler->Advance = %f Font::scaleFontValue = %f\n",str.c_str(),textHandler->Advance(str.c_str()),Font::scaleFontValue);
return (textHandler->Advance(str.c_str()) * Font::scaleFontValue);
//return (textHandler->Advance(str.c_str()));
}
else {
float width= 0.f;
for(unsigned int i=0; i< str.size() && (int)i < Font::charCount; ++i){
if(str[i] >= Font::charCount) {
string sError = "str[i] >= Font::charCount, [" + str + "] i = " + intToStr(i);
throw megaglest_runtime_error(sError);
}
//Treat 2 byte characters as spaces
if(str[i] < 0) {
width+= (widths[97]); // This is the letter a which is a normal wide character and good to use for spacing
}
else {
width+= widths[str[i]];
}
}
return width;
}
}
float FontMetrics::getHeight(const string &str) const {
if(textHandler != NULL) {
//printf("(textHandler->LineHeight(" ") = %f Font::scaleFontValue = %f\n",textHandler->LineHeight(" "),Font::scaleFontValue);
//return (textHandler->LineHeight(str.c_str()) * Font::scaleFontValue);
return (textHandler->LineHeight(str.c_str()));
}
else {
return height;
}
}
// ===============================================
// class Font
// ===============================================
Font::Font(FontTextHandlerType type) {
assert(GlobalStaticFlags::getIsNonGraphicalModeEnabled() == false);
inited = false;
this->type = fontTypeName;
width = 400;
size = 10;
textHandler = NULL;
#if defined(USE_FTGL) || defined(USE_FREETYPEGL)
if(Font::forceLegacyFonts == false) {
try {
#if defined(USE_FREETYPEGL)
//if(Font::forceFTGLFonts == false) {
// textHandler = NULL;
// textHandler = new TextFreetypeGL(type);
//printf("TextFreetypeGL is ON\n");
//}
//else
#endif
{
TextFTGL::faceResolution = Font::faceResolution;
TextFTGL::langHeightText = Font::langHeightText;
textHandler = NULL;
textHandler = new TextFTGL(type);
//printf("TextFTGL is ON\n");
TextFTGL::faceResolution = Font::faceResolution;
TextFTGL::langHeightText = Font::langHeightText;
}
metrics.setTextHandler(this->textHandler);
}
catch(exception &ex) {
SystemFlags::OutputDebug(SystemFlags::debugError,"In [%s::%s Line: %d] Error [%s]\n",__FILE__,__FUNCTION__,__LINE__,ex.what());
textHandler = NULL;
}
}
#endif
}
Font::~Font() {
if(textHandler) {
delete textHandler;
}
textHandler = NULL;
}
string Font::getType() const {
return this->type;
}
void Font::setType(string typeX11, string typeGeneric, string typeGenericFamily) {
if(textHandler) {
try {
this->type= typeGeneric;
textHandler->init(typeGeneric,typeGenericFamily,textHandler->GetFaceSize());
metrics.setTextHandler(this->textHandler);
}
catch(exception &ex) {
SystemFlags::OutputDebug(SystemFlags::debugError,"In [%s::%s Line: %d] Error [%s]\n",__FILE__,__FUNCTION__,__LINE__,ex.what());
textHandler = NULL;
}
}
if(textHandler == NULL) {
this->type= typeX11;
}
}
void Font::setWidth(int width) {
this->width= width;
}
int Font::getWidth() const {
return width;
}
int Font::getSize() const {
if(textHandler) {
return textHandler->GetFaceSize();
}
else {
return size;
}
}
void Font::setSize(int size) {
if(textHandler) {
return textHandler->SetFaceSize(size);
}
else {
this->size= size;
}
}
// ===============================================
// class Font2D
// ===============================================
Font2D::Font2D(FontTextHandlerType type) : Font(type) {
}
// ===============================================
// class Font3D
// ===============================================
Font3D::Font3D(FontTextHandlerType type) : Font(type) {
depth= 10.f;
}
string findFontFamily(const char* font, const char *fontFamily) {
string resultFile = "";
#ifdef HAVE_FONTCONFIG
// Get default font via fontconfig
if( !font && FcInit() && fontFamily) {
FcResult result;
FcFontSet *fs;
FcPattern* pat;
FcPattern *match;
/*
TRANSLATORS: If using the FTGL backend, this should be the font
name of a font that contains all the Unicode characters in use in
your translation.
*/
//pat = FcNameParse((FcChar8 *)"Gothic Uralic");
pat = FcNameParse((FcChar8 *)fontFamily);
FcConfigSubstitute(0, pat, FcMatchPattern);
//FcPatternDel(pat, FC_WEIGHT);
//FcPatternAddInteger(pat, FC_WEIGHT, FC_WEIGHT_BOLD);
FcDefaultSubstitute(pat);
fs = FcFontSetCreate();
match = FcFontMatch(0, pat, &result);
if(SystemFlags::VERBOSE_MODE_ENABLED) printf("Trying fontconfig for fontfamily [%s]\n",fontFamily);
if (match) FcFontSetAdd(fs, match);
if (pat) FcPatternDestroy(pat);
if(fs) {
FcChar8* file;
if( FcPatternGetString (fs->fonts[0], FC_FILE, 0, &file) == FcResultMatch ) {
//CHECK_FONT_PATH((const char*)file,NULL)
resultFile = (const char*)file;
}
FcFontSetDestroy(fs);
}
FcFini();
}
#else
if(SystemFlags::VERBOSE_MODE_ENABLED) printf("******************* NO FONT CONFIG ENABLED!\n");
#endif
return resultFile;
}
const char* findFont(const char *firstFontToTry,const char *firstFontFamilyToTry) {
const char* font = NULL;
const char* path = NULL;
#define CHECK_FONT_PATH(filename,fontFamily) \
{ \
path = filename; \
if( font == NULL && path != NULL && strlen(path) > 0 && fileExists(path) == true ) { \
font = strdup(path); \
} \
if(SystemFlags::VERBOSE_MODE_ENABLED) printf("#1 Searching for font file [%s] result [%s]\n",path,font); \
if( font != NULL && fontFamily != NULL && strlen(fontFamily) > 0) { \
string fileFound = findFontFamily(font, fontFamily); \
if(fileFound != "") { \
path = fileFound.c_str(); \
if( font != NULL && path && strlen(path) > 0 && fileExists(path) == true ) { \
font = strdup(path); \
} \
} \
if(SystemFlags::VERBOSE_MODE_ENABLED) printf("#2 Searching for font family [%s] result [%s]\n",fontFamily,font); \
} \
}
string tryFont = "";
if(firstFontToTry != NULL || firstFontFamilyToTry != NULL) {
if(firstFontToTry != NULL && strlen(firstFontToTry) > 0) {
tryFont = firstFontToTry;
#ifdef WIN32
replaceAll(tryFont, "/", "\\");
#endif
CHECK_FONT_PATH(tryFont.c_str(),firstFontFamilyToTry)
}
else {
CHECK_FONT_PATH(NULL,firstFontFamilyToTry)
}
}
// Get user-specified font path
if(getenv("MEGAGLEST_FONT") != NULL || getenv("MEGAGLEST_FONT_FAMILY") != NULL) {
if(getenv("MEGAGLEST_FONT") != NULL) {
tryFont = getenv("MEGAGLEST_FONT");
#ifdef WIN32
replaceAll(tryFont, "/", "\\");
#endif
CHECK_FONT_PATH(tryFont.c_str(),getenv("MEGAGLEST_FONT_FAMILY"))
}
else {
CHECK_FONT_PATH(NULL,getenv("MEGAGLEST_FONT_FAMILY"))
}
}
string data_path = Text::DEFAULT_FONT_PATH;
string defaultFont = data_path + "data/core/fonts/LinBiolinum_RB.ttf";//LinBiolinum_Re-0.6.4.ttf
tryFont = defaultFont;
#ifdef WIN32
replaceAll(tryFont, "/", "\\");
#endif
CHECK_FONT_PATH(tryFont.c_str(),"Linux Biolinum O:style=Bold")
#ifdef FONT_PATH
// Get distro-specified font path
CHECK_FONT_PATH(FONT_PATH)
#endif
CHECK_FONT_PATH("/usr/share/fonts/truetype/uralic/gothub__.ttf","Gothic Uralic:style=Regular")
// Check a couple of common paths for Gothic Uralic/bold as a last resort
// Debian
/*
TRANSLATORS: If using the FTGL backend, this should be the path of a bold
font that contains all the Unicode characters in use in your translation.
If the font is available in Debian it should be the Debian path.
*/
CHECK_FONT_PATH("/usr/share/fonts/truetype/uralic/gothub__.ttf","Gothic Uralic:style=Regular")
/*
TRANSLATORS: If using the FTGL backend, this should be the path of a
font that contains all the Unicode characters in use in your translation.
If the font is available in Debian it should be the Debian path.
*/
CHECK_FONT_PATH("/usr/share/fonts/truetype/uralic/gothu___.ttf","Gothic Uralic:style=Regular")
// Mandrake
/*
TRANSLATORS: If using the FTGL backend, this should be the path of a bold
font that contains all the Unicode characters in use in your translation.
If the font is available in Mandrake it should be the Mandrake path.
*/
CHECK_FONT_PATH("/usr/share/fonts/TTF/uralic/GOTHUB__.TTF","Gothic Uralic:style=Bold")
/*
TRANSLATORS: If using the FTGL backend, this should be the path of a
font that contains all the Unicode characters in use in your translation.
If the font is available in Mandrake it should be the Mandrake path.
*/
CHECK_FONT_PATH("/usr/share/fonts/TTF/uralic/GOTHU___.TTF","Gothic Uralic:style=Regular")
// Check the non-translated versions of the above
CHECK_FONT_PATH("/usr/share/fonts/truetype/uralic/gothub__.ttf","Gothic Uralic:style=Regular")
CHECK_FONT_PATH("/usr/share/fonts/truetype/uralic/gothu___.ttf","Gothic Uralic:style=Regular")
CHECK_FONT_PATH("/usr/share/fonts/TTF/uralic/GOTHUB__.TTF","Gothic Uralic:style=Regular")
CHECK_FONT_PATH("/usr/share/fonts/TTF/uralic/GOTHU___.TTF","Gothic Uralic:style=Regular")
CHECK_FONT_PATH("/usr/share/fonts/truetype/linux-libertine/LinLibertine_Re.ttf","Linux Libertine O:style=Regular")
CHECK_FONT_PATH("/usr/share/fonts/truetype/freefont/FreeSerif.ttf","FreeSerif")
CHECK_FONT_PATH("/usr/share/fonts/truetype/freefont/FreeSans.ttf","FreeSans")
CHECK_FONT_PATH("/usr/share/fonts/truetype/freefont/FreeMono.ttf","FreeMono")
#ifdef _WIN32
CHECK_FONT_PATH("c:\\windows\\fonts\\verdana.ttf",NULL)
CHECK_FONT_PATH("c:\\windows\\fonts\\tahoma.ttf",NULL)
CHECK_FONT_PATH("c:\\windows\\fonts\\arial.ttf",NULL)
CHECK_FONT_PATH("\\windows\\fonts\\arial.ttf",NULL)
#endif
return font;
}
}}//end namespace