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#include "fontmanager.h"
#include "../config.h"
#include <ft2build.h>
#include FT_FREETYPE_H
using namespace std;
cMutex cFontManager::mutex;
cFontManager::cFontManager() {
}
cFontManager::~cFontManager() {
DeleteFonts();
}
void cFontManager::CacheFonts(cTemplate *tpl) {
cMutexLock MutexLock(&mutex);
vector< pair<string, int> > usedFonts = tpl->GetUsedFonts();
cStringList availableFonts;
cFont::GetAvailableFontNames(&availableFonts);
for (vector< pair<string, int> >::iterator ft = usedFonts.begin(); ft != usedFonts.end(); ft++) {
string fontName = ft->first;
int fontSize = ft->second;
if (fontSize < 1) {
continue;
}
int fontAvailable = availableFonts.Find(fontName.c_str());
if (fontAvailable == -1) {
esyslog("skindesigner: font %s not available, skipping", fontName.c_str());
continue;
}
InsertFont(fontName, fontSize);
}
}
void cFontManager::Debug(void) {
dsyslog("skindesigner: fontmanager fonts available:");
for (map < string, map< int, cFont* > >::iterator fts = fonts.begin(); fts != fonts.end(); fts++) {
dsyslog("skindesigner: FontName %s", fts->first.c_str());
for (map<int, cFont*>::iterator ftSizes = (fts->second).begin(); ftSizes != (fts->second).end(); ftSizes++) {
int confHeight = ftSizes->first;
int realHeight = (ftSizes->second)->Height();
dsyslog("skindesigner: fontSize %d, fontHeight %d, ratio %f", confHeight, realHeight, (double)confHeight / (double)realHeight);
}
}
}
void cFontManager::ListAvailableFonts(void) {
cStringList availableFonts;
cFont::GetAvailableFontNames(&availableFonts);
int numFonts = availableFonts.Size();
esyslog("skindesigner: %d Fonts available:", numFonts);
for (int i=0; i<numFonts; i++) {
esyslog("skindesigner: font %d: %s", i, availableFonts[i]);
}
}
void cFontManager::DeleteFonts() {
cMutexLock MutexLock(&mutex);
for(map<string, map<int,cFont*> >::iterator it = fonts.begin(); it != fonts.end(); it++) {
for(map<int,cFont*>::iterator it2 = (it->second).begin(); it2 != (it->second).end(); it2++) {
delete it2->second;
}
}
fonts.clear();
}
int cFontManager::Width(string fontName, int fontSize, const char *text) {
cMutexLock MutexLock(&mutex);
if (!text)
return 0;
cFont *font = GetFont(fontName, fontSize);
//if not already cached, load it new
if (!font)
InsertFont(fontName, fontSize);
font = GetFont(fontName, fontSize);
if (!font)
return 0;
int width = font->Width(text);
return width;
}
int cFontManager::Height(string fontName, int fontSize) {
cMutexLock MutexLock(&mutex);
cFont *font = GetFont(fontName, fontSize);
//if not already cached, load it new
if (!font)
InsertFont(fontName, fontSize);
font = GetFont(fontName, fontSize);
if (!font)
return 0;
return font->Height();
}
cFont *cFontManager::Font(string fontName, int fontSize) {
cMutexLock MutexLock(&mutex);
cFont *font = GetFont(fontName, fontSize);
//if not already cached, load it new
if (!font)
InsertFont(fontName, fontSize);
font = GetFont(fontName, fontSize);
return font;
}
cFont *cFontManager::FontUncached(string fontName, int fontSize) {
cMutexLock MutexLock(&mutex);
cFont *font = CreateFont(fontName, fontSize);
return font;
}
/********************************************************************************
* Private Functions
********************************************************************************/
cFont *cFontManager::CreateFont(string name, int size) {
cMutexLock MutexLock(&mutex);
cFont *fontTmp = cFont::CreateFont(name.c_str(), size);
if (!fontTmp)
fontTmp = cFont::CreateFont(Setup.FontOsd, size);
int realHeight = fontTmp->Height();
delete fontTmp;
cFont *font = cFont::CreateFont(name.c_str(), (double)size / (double)realHeight * (double)size);
if (!font)
font = cFont::CreateFont(Setup.FontOsd, (double)size / (double)realHeight * (double)size);
return font;
}
void cFontManager::InsertFont(string name, int size) {
cFont *newFont = CreateFont(name, size);
if (!newFont)
return;
map < string, map< int, cFont* > >::iterator hit = fonts.find(name);
if (hit != fonts.end()) {
(hit->second).insert(pair<int, cFont*>(size, newFont));
} else {
map<int, cFont*> fontsizes;
fontsizes.insert(pair<int, cFont*>(size, newFont));
fonts.insert(pair<string, map<int, cFont*> >(name, fontsizes));
}
}
cFont *cFontManager::GetFont(string name, int size) {
map< string, map<int,cFont*> >::iterator hitName = fonts.find(name);
if (hitName == fonts.end())
return NULL;
map<int,cFont*>::iterator hitSize = (hitName->second).find(size);
if (hitSize == (hitName->second).end())
return NULL;
return hitSize->second;
}
int cFontManager::GetFontHeight(const char *name, int height, int charWidth) {
FT_Library library;
FT_Face face;
cString fontFileName = cFont::GetFontFileName(name);
int descender = 0;
int y_ppem = 0;
int error = FT_Init_FreeType(&library);
if (error) return 0;
error = FT_New_Face(library, fontFileName, 0, &face);
if (error) return 0;
error = FT_Set_Char_Size(face, charWidth * 64, height * 64, 0, 0);
if (error) return 0;
descender = face->size->metrics.descender/64;
y_ppem = face->size->metrics.y_ppem;
int realHeight = y_ppem + descender;
FT_Done_Face(face);
FT_Done_FreeType(library);
return realHeight;
}
bool cFontManager::FontInstalled(string fontName) {
cStringList availableFonts;
cFont::GetAvailableFontNames(&availableFonts);
int numFonts = availableFonts.Size();
string compare = fontName + ":";
for (int i=0; i<numFonts; i++) {
string currentFont = availableFonts[i];
if (currentFont.find(compare) == 0) {
return true;
}
}
return false;
}
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