+++ /dev/null
-/* === S Y N F I G ========================================================= */
-/*! \file lyr_freetype.cpp
-** \brief Implementation of the "Text" layer
-**
-** $Id$
-**
-** \legal
-** Copyright (c) 2002-2005 Robert B. Quattlebaum Jr., Adrian Bentley
-** Copyright (c) 2006 Paul Wise
-** Copyright (c) 2007, 2008 Chris Moore
-**
-** This package 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 package 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.
-** \endlegal
-**
-** === N O T E S ===========================================================
-**
-** ========================================================================= */
-
-/* === H E A D E R S ======================================================= */
-
-#define SYNFIG_LAYER
-
-#ifdef USING_PCH
-# include "pch.h"
-#else
-#ifdef HAVE_CONFIG_H
-# include <config.h>
-#endif
-#ifdef WITH_FONTCONFIG
-#include <fontconfig/fontconfig.h>
-#endif
-
-#include "lyr_freetype.h"
-#endif
-
-using namespace std;
-using namespace etl;
-using namespace synfig;
-
-/* === M A C R O S ========================================================= */
-
-#define MAX_GLYPHS 2000
-
-#define PANGO_STYLE_NORMAL (0)
-#define PANGO_STYLE_OBLIQUE (1)
-#define PANGO_STYLE_ITALIC (2)
-
-#define WEIGHT_NORMAL (400)
-#define WEIGHT_BOLD (700)
-
-/* === G L O B A L S ======================================================= */
-
-SYNFIG_LAYER_INIT(Layer_Freetype);
-SYNFIG_LAYER_SET_NAME(Layer_Freetype,"text");
-SYNFIG_LAYER_SET_LOCAL_NAME(Layer_Freetype,N_("Text"));
-SYNFIG_LAYER_SET_CATEGORY(Layer_Freetype,N_("Other"));
-SYNFIG_LAYER_SET_VERSION(Layer_Freetype,"0.2");
-SYNFIG_LAYER_SET_CVS_ID(Layer_Freetype,"$Id$");
-
-/* === P R O C E D U R E S ================================================= */
-
-/*Glyph::~Glyph()
-{
- if(glyph)FT_Done_Glyph(glyph);
-}
-*/
-void
-TextLine::clear_and_free()
-{
- std::vector<Glyph>::iterator iter;
- for(iter=glyph_table.begin();iter!=glyph_table.end();++iter)
- {
- if(iter->glyph)FT_Done_Glyph(iter->glyph);
- iter->glyph=0;
- }
- glyph_table.clear();
-}
-
-/* === M E T H O D S ======================================================= */
-
-Layer_Freetype::Layer_Freetype()
-{
- face=0;
-
- size=Vector(0.25,0.25);
- text=_("Text Layer");
- color=Color::black();
- origin=Vector(0,0);
- orient=Vector(0.5,0.5);
- compress=1.0;
- vcompress=1.0;
- weight=WEIGHT_NORMAL;
- style=PANGO_STYLE_NORMAL;
- family="Sans Serif";
- use_kerning=true;
- grid_fit=false;
- old_version=false;
- set_blend_method(Color::BLEND_COMPOSITE);
- needs_sync_=true;
-
- new_font(family,style,weight);
-
- invert=false;
-}
-
-Layer_Freetype::~Layer_Freetype()
-{
- if(face)
- FT_Done_Face(face);
-}
-
-void
-Layer_Freetype::new_font(const synfig::String &family, int style, int weight)
-{
- if(
- !new_font_(family,style,weight) &&
- !new_font_(family,style,WEIGHT_NORMAL) &&
- !new_font_(family,PANGO_STYLE_NORMAL,weight) &&
- !new_font_(family,PANGO_STYLE_NORMAL,WEIGHT_NORMAL) &&
- !new_font_("sans serif",style,weight) &&
- !new_font_("sans serif",style,WEIGHT_NORMAL) &&
- !new_font_("sans serif",PANGO_STYLE_NORMAL,weight)
- )
- new_font_("sans serif",PANGO_STYLE_NORMAL,WEIGHT_NORMAL);
-}
-
-bool
-Layer_Freetype::new_font_(const synfig::String &font_fam_, int style, int weight)
-{
- synfig::String font_fam(font_fam_);
-
- if(new_face(font_fam_))
- return true;
-
- //start evil hack
- for(unsigned int i=0;i<font_fam.size();i++)font_fam[i]=tolower(font_fam[i]);
- //end evil hack
-
- if(font_fam=="arial black")
- {
-#ifndef __APPLE__
- if(new_face("ariblk"))
- return true;
- else
-#endif
- font_fam="sans serif";
- }
-
- if(font_fam=="sans serif" || font_fam=="arial")
- {
- String arial("arial");
- if(weight>WEIGHT_NORMAL)
- arial+='b';
- if(style==PANGO_STYLE_ITALIC||style==PANGO_STYLE_OBLIQUE)
- arial+='i';
- else
- if(weight>WEIGHT_NORMAL) arial+='d';
-
- if(new_face(arial))
- return true;
-#ifdef __APPLE__
- if(new_face("Helvetica RO"))
- return true;
-#endif
- }
-
- if(font_fam=="comic" || font_fam=="comic sans")
- {
- String filename("comic");
- if(weight>WEIGHT_NORMAL)
- filename+='b';
- if(style==PANGO_STYLE_ITALIC||style==PANGO_STYLE_OBLIQUE)
- filename+='i';
- else if(weight>WEIGHT_NORMAL) filename+='d';
-
- if(new_face(filename))
- return true;
- }
-
- if(font_fam=="courier" || font_fam=="courier new")
- {
- String filename("cour");
- if(weight>WEIGHT_NORMAL)
- filename+='b';
- if(style==PANGO_STYLE_ITALIC||style==PANGO_STYLE_OBLIQUE)
- filename+='i';
- else if(weight>WEIGHT_NORMAL) filename+='d';
-
- if(new_face(filename))
- return true;
- }
-
- if(font_fam=="serif" || font_fam=="times" || font_fam=="times new roman")
- {
- String filename("times");
- if(weight>WEIGHT_NORMAL)
- filename+='b';
- if(style==PANGO_STYLE_ITALIC||style==PANGO_STYLE_OBLIQUE)
- filename+='i';
- else if(weight>WEIGHT_NORMAL) filename+='d';
-
- if(new_face(filename))
- return true;
- }
-
- if(font_fam=="trebuchet")
- {
- String filename("trebuc");
- if(weight>WEIGHT_NORMAL)
- filename+='b';
- if(style==PANGO_STYLE_ITALIC||style==PANGO_STYLE_OBLIQUE)
- {
- filename+='i';
- if(weight<=WEIGHT_NORMAL) filename+='t';
- }
- else if(weight>WEIGHT_NORMAL) filename+='d';
-
- if(new_face(filename))
- return true;
- }
-
- if(font_fam=="sans serif" || font_fam=="luxi sans")
- {
- {
- String luxi("luxis");
- if(weight>WEIGHT_NORMAL)
- luxi+='b';
- else
- luxi+='r';
- if(style==PANGO_STYLE_ITALIC||style==PANGO_STYLE_OBLIQUE)
- luxi+='i';
-
- if(new_face(luxi))
- return true;
- }
- if(new_face("arial"))
- return true;
- if(new_face("Arial"))
- return true;
- }
- if(font_fam=="serif" || font_fam=="times" || font_fam=="times new roman" || font_fam=="luxi serif")
- {
- {
- String luxi("luxir");
- if(weight>WEIGHT_NORMAL)
- luxi+='b';
- else
- luxi+='r';
- if(style==PANGO_STYLE_ITALIC||style==PANGO_STYLE_OBLIQUE)
- luxi+='i';
-
- if(new_face(luxi))
- return true;
- }
- if(new_face("Times New Roman"))
- return true;
- if(new_face("Times"))
- return true;
- }
- if(font_fam=="luxi")
- {
- {
- String luxi("luxim");
- if(weight>WEIGHT_NORMAL)
- luxi+='b';
- else
- luxi+='r';
- if(style==PANGO_STYLE_ITALIC||style==PANGO_STYLE_OBLIQUE)
- luxi+='i';
-
- if(new_face(luxi))
- return true;
- }
-
- if(new_face("Times New Roman"))
- return true;
- if(new_face("Times"))
- return true;
- }
-
- return new_face(font_fam_) || new_face(font_fam);
-
- return false;
-}
-
-#ifdef USE_MAC_FT_FUNCS
-void fss2path(char *path, FSSpec *fss)
-{
- int l; //fss->name contains name of last item in path
- for(l=0; l<(fss->name[0]); l++) path[l] = fss->name[l + 1];
- path[l] = 0;
-
- if(fss->parID != fsRtParID) //path is more than just a volume name
- {
- int i, len;
- CInfoPBRec pb;
-
- pb.dirInfo.ioNamePtr = fss->name;
- pb.dirInfo.ioVRefNum = fss->vRefNum;
- pb.dirInfo.ioDrParID = fss->parID;
- do
- {
- pb.dirInfo.ioFDirIndex = -1; //get parent directory name
- pb.dirInfo.ioDrDirID = pb.dirInfo.ioDrParID;
- if(PBGetCatInfoSync(&pb) != noErr) break;
-
- len = fss->name[0] + 1;
- for(i=l; i>=0; i--) path[i + len] = path[i];
- for(i=1; i<len; i++) path[i - 1] = fss->name[i]; //add to start of path
- path[i - 1] = ':';
- l += len;
-} while(pb.dirInfo.ioDrDirID != fsRtDirID); //while more directory levels
- }
-}
-#endif
-
-bool
-Layer_Freetype::new_face(const String &newfont)
-{
- int error;
- FT_Long face_index=0;
-
- // If we are already loaded, don't bother reloading.
- if(face && font==newfont)
- return true;
-
- if(face)
- {
- FT_Done_Face(face);
- face=0;
- }
-
- error=FT_New_Face(ft_library,newfont.c_str(),face_index,&face);
- if(error)error=FT_New_Face(ft_library,(newfont+".ttf").c_str(),face_index,&face);
-
- if(get_canvas())
- {
- if(error)error=FT_New_Face(ft_library,(get_canvas()->get_file_path()+ETL_DIRECTORY_SEPARATOR+newfont).c_str(),face_index,&face);
- if(error)error=FT_New_Face(ft_library,(get_canvas()->get_file_path()+ETL_DIRECTORY_SEPARATOR+newfont+".ttf").c_str(),face_index,&face);
- }
-
-#ifdef USE_MAC_FT_FUNCS
- if(error)
- {
- FSSpec fs_spec;
- error=FT_GetFile_From_Mac_Name(newfont.c_str(),&fs_spec,&face_index);
- if(!error)
- {
- char filename[512];
- fss2path(filename,&fs_spec);
- //FSSpecToNativePathName(fs_spec,filename,sizeof(filename)-1, 0);
-
- error=FT_New_Face(ft_library, filename, face_index,&face);
- //error=FT_New_Face_From_FSSpec(ft_library, &fs_spec, face_index,&face);
- synfig::info(__FILE__":%d: \"%s\" (%s) -- ft_error=%d",__LINE__,newfont.c_str(),filename,error);
- }
- else
- {
- synfig::info(__FILE__":%d: \"%s\" -- ft_error=%d",__LINE__,newfont.c_str(),error);
- // Unable to generate fs_spec
- }
- }
-#endif
-
-#ifdef WITH_FONTCONFIG
- if(error)
- {
- FcFontSet *fs;
- FcResult result;
- if( !FcInit() )
- {
- synfig::warning("Layer_Freetype: fontconfig: %s",_("unable to initialize"));
- error = 1;
- } else {
- FcPattern* pat = FcNameParse((FcChar8 *) newfont.c_str());
- FcConfigSubstitute(0, pat, FcMatchPattern);
- FcDefaultSubstitute(pat);
- FcPattern *match;
- fs = FcFontSetCreate();
- match = FcFontMatch(0, pat, &result);
- if (match)
- FcFontSetAdd(fs, match);
- if (pat)
- FcPatternDestroy(pat);
- if(fs){
- FcChar8* file;
- if( FcPatternGetString (fs->fonts[0], FC_FILE, 0, &file) == FcResultMatch )
- error=FT_New_Face(ft_library,(const char*)file,face_index,&face);
- FcFontSetDestroy(fs);
- } else
- synfig::warning("Layer_Freetype: fontconfig: %s",_("empty font set"));
- }
- }
-#endif
-
-#ifdef WIN32
- if(error)error=FT_New_Face(ft_library,("C:\\WINDOWS\\FONTS\\"+newfont).c_str(),face_index,&face);
- if(error)error=FT_New_Face(ft_library,("C:\\WINDOWS\\FONTS\\"+newfont+".ttf").c_str(),face_index,&face);
-#else
-
-#ifdef __APPLE__
- if(error)error=FT_New_Face(ft_library,("~/Library/Fonts/"+newfont).c_str(),face_index,&face);
- if(error)error=FT_New_Face(ft_library,("~/Library/Fonts/"+newfont+".ttf").c_str(),face_index,&face);
- if(error)error=FT_New_Face(ft_library,("~/Library/Fonts/"+newfont+".dfont").c_str(),face_index,&face);
-
- if(error)error=FT_New_Face(ft_library,("/Library/Fonts/"+newfont).c_str(),face_index,&face);
- if(error)error=FT_New_Face(ft_library,("/Library/Fonts/"+newfont+".ttf").c_str(),face_index,&face);
- if(error)error=FT_New_Face(ft_library,("/Library/Fonts/"+newfont+".dfont").c_str(),face_index,&face);
-#endif
-
- if(error)error=FT_New_Face(ft_library,("/usr/X11R6/lib/X11/fonts/type1/"+newfont).c_str(),face_index,&face);
- if(error)error=FT_New_Face(ft_library,("/usr/X11R6/lib/X11/fonts/type1/"+newfont+".ttf").c_str(),face_index,&face);
-
- if(error)error=FT_New_Face(ft_library,("/usr/share/fonts/truetype/"+newfont).c_str(),face_index,&face);
- if(error)error=FT_New_Face(ft_library,("/usr/share/fonts/truetype/"+newfont+".ttf").c_str(),face_index,&face);
-
- if(error)error=FT_New_Face(ft_library,("/usr/X11R6/lib/X11/fonts/TTF/"+newfont).c_str(),face_index,&face);
- if(error)error=FT_New_Face(ft_library,("/usr/X11R6/lib/X11/fonts/TTF/"+newfont+".ttf").c_str(),face_index,&face);
-
- if(error)error=FT_New_Face(ft_library,("/usr/X11R6/lib/X11/fonts/truetype/"+newfont).c_str(),face_index,&face);
- if(error)error=FT_New_Face(ft_library,("/usr/X11R6/lib/X11/fonts/truetype/"+newfont+".ttf").c_str(),face_index,&face);
-
-#endif
- if(error)
- {
- //synfig::error(strprintf("Layer_Freetype:%s (err=%d)",_("Unable to open face."),error));
- return false;
- }
-
- font=newfont;
-
- needs_sync_=true;
- return true;
-}
-
-bool
-Layer_Freetype::set_param(const String & param, const ValueBase &value)
-{
- Mutex::Lock lock(mutex);
-/*
- if(param=="font" && value.same_type_as(font))
- {
- new_font(etl::basename(value.get(font)),style,weight);
- family=etl::basename(value.get(font));
- return true;
- }
-*/
- IMPORT_PLUS(family,new_font(family,style,weight));
- IMPORT_PLUS(weight,new_font(family,style,weight));
- IMPORT_PLUS(style,new_font(family,style,weight));
- IMPORT_PLUS(size, if(old_version){size/=2.0;} needs_sync_=true );
- IMPORT_PLUS(text,needs_sync_=true);
- IMPORT_PLUS(origin,needs_sync_=true);
- IMPORT_PLUS(color, { if (color.get_a() == 0) { if (converted_blend_) {
- set_blend_method(Color::BLEND_ALPHA_OVER);
- color.set_a(1); } else transparent_color_ = true; } });
- IMPORT(invert);
- IMPORT_PLUS(orient,needs_sync_=true);
- IMPORT_PLUS(compress,needs_sync_=true);
- IMPORT_PLUS(vcompress,needs_sync_=true);
- IMPORT_PLUS(use_kerning,needs_sync_=true);
- IMPORT_PLUS(grid_fit,needs_sync_=true);
-
- IMPORT_AS(origin,"pos");
-
- return Layer_Composite::set_param(param,value);
-}
-
-ValueBase
-Layer_Freetype::get_param(const String& param)const
-{
- EXPORT(font);
- EXPORT(family);
- EXPORT(style);
- EXPORT(weight);
- EXPORT(size);
- EXPORT(text);
- EXPORT(color);
- EXPORT(origin);
- EXPORT(orient);
- EXPORT(compress);
- EXPORT(vcompress);
- EXPORT(use_kerning);
- EXPORT(grid_fit);
- EXPORT(invert);
-
- EXPORT_NAME();
- EXPORT_VERSION();
-
- return Layer_Composite::get_param(param);
-}
-
-Layer::Vocab
-Layer_Freetype::get_param_vocab(void)const
-{
- Layer::Vocab ret(Layer_Composite::get_param_vocab());
-
- ret.push_back(ParamDesc("text")
- .set_local_name(_("Text"))
- .set_description(_("Text to Render"))
- .set_hint("paragraph")
- );
-
- ret.push_back(ParamDesc("color")
- .set_local_name(_("Color"))
- .set_description(_("Color of the text"))
- );
-
- ret.push_back(ParamDesc("family")
- .set_local_name(_("Font Family"))
- .set_hint("font_family")
- );
-
- ret.push_back(ParamDesc("style")
- .set_local_name(_("Style"))
- .set_hint("enum")
- .add_enum_value(PANGO_STYLE_NORMAL, "normal" ,_("Normal"))
- .add_enum_value(PANGO_STYLE_OBLIQUE, "oblique" ,_("Oblique"))
- .add_enum_value(PANGO_STYLE_ITALIC, "italic" ,_("Italic"))
- );
-
- ret.push_back(ParamDesc("weight")
- .set_local_name(_("Weight"))
- .set_hint("enum")
- .add_enum_value(200, "ultralight" ,_("Ultralight"))
- .add_enum_value(300, "light" ,_("light"))
- .add_enum_value(400, "normal" ,_("Normal"))
- .add_enum_value(700, "bold" ,_("Bold"))
- .add_enum_value(800, "ultrabold" ,_("Ultrabold"))
- .add_enum_value(900, "heavy" ,_("Heavy"))
- );
- ret.push_back(ParamDesc("compress")
- .set_local_name(_("Horizontal Spacing"))
- .set_description(_("Describes how close glyphs are horizontally"))
- );
-
- ret.push_back(ParamDesc("vcompress")
- .set_local_name(_("Vertical Spacing"))
- .set_description(_("Describes how close lines of text are vertically"))
- );
-
- ret.push_back(ParamDesc("size")
- .set_local_name(_("Size"))
- .set_description(_("Size of the text"))
- .set_hint("size")
- .set_origin("origin")
- .set_scalar(1)
- );
-
- ret.push_back(ParamDesc("orient")
- .set_local_name(_("Orientation"))
- .set_description(_("Text Orientation"))
- .set_invisible_duck()
- );
-
- ret.push_back(ParamDesc("origin")
- .set_local_name(_("Origin"))
- .set_description(_("Text Position"))
- );
-
- ret.push_back(ParamDesc("font")
- .set_local_name(_("Font"))
- .set_description(_("Filename of the font to use"))
- .set_hint("filename")
- .not_critical()
- .hidden()
- );
-
- ret.push_back(ParamDesc("use_kerning")
- .set_local_name(_("Kerning"))
- .set_description(_("Enables/Disables font kerning (If the font supports it)"))
- );
-
- ret.push_back(ParamDesc("grid_fit")
- .set_local_name(_("Sharpen Edges"))
- .set_description(_("Turn this off if you are going to be animating the text"))
- );
- ret.push_back(ParamDesc("invert")
- .set_local_name(_("Invert"))
- );
- return ret;
-}
-
-void
-Layer_Freetype::sync()
-{
- needs_sync_=false;
-}
-
-inline Color
-Layer_Freetype::color_func(const Point &point_ __attribute__ ((unused)), int quality __attribute__ ((unused)), float supersample __attribute__ ((unused)))const
-{
- if (invert)
- return color;
- else
- return Color::alpha();
-}
-
-Color
-Layer_Freetype::get_color(Context context, const synfig::Point &pos)const
-{
- if(needs_sync_)
- const_cast<Layer_Freetype*>(this)->sync();
-
- const Color color(color_func(pos,0));
-
- if(!face)
- return context.get_color(pos);
-
- if(get_amount()==1.0 && get_blend_method()==Color::BLEND_STRAIGHT)
- return color;
- else
- return Color::blend(color,context.get_color(pos),get_amount(),get_blend_method());
-}
-
-bool
-Layer_Freetype::accelerated_render(Context context,Surface *surface,int quality, const RendDesc &renddesc, ProgressCallback *cb)const
-{
- static synfig::RecMutex freetype_mutex;
-
- if(needs_sync_)
- const_cast<Layer_Freetype*>(this)->sync();
-
- int error;
- Vector size(Layer_Freetype::size*2);
-
- if(!context.accelerated_render(surface,quality,renddesc,cb))
- return false;
-
- if(is_disabled() || text.empty())
- return true;
-
- // If there is no font loaded, just bail
- if(!face)
- {
- if(cb)cb->warning(string("Layer_Freetype:")+_("No face loaded, no text will be rendered."));
- return true;
- }
-
- String text(Layer_Freetype::text);
- if(text=="@_FILENAME_@" && get_canvas() && !get_canvas()->get_file_name().empty())
- {
- text=basename(get_canvas()->get_file_name());
- }
-
- // Width and Height of a pixel
- Vector::value_type pw=renddesc.get_w()/(renddesc.get_br()[0]-renddesc.get_tl()[0]);
- Vector::value_type ph=renddesc.get_h()/(renddesc.get_br()[1]-renddesc.get_tl()[1]);
-
- // Calculate character width and height
- int w=abs(round_to_int(size[0]*pw));
- int h=abs(round_to_int(size[1]*ph));
-
- //int bx=(int)((origin[0]-renddesc.get_tl()[0])*pw*64+0.5);
- //int by=(int)((origin[1]-renddesc.get_tl()[1])*ph*64+0.5);
- int bx=0;
- int by=0;
-
- // If the font is the size of a pixel, don't bother rendering any text
- if(w<=1 || h<=1)
- {
- if(cb)cb->warning(string("Layer_Freetype:")+_("Text too small, no text will be rendered."));
- return true;
- }
-
- synfig::RecMutex::Lock lock(freetype_mutex);
-
-#define CHAR_RESOLUTION (64)
- error = FT_Set_Char_Size(
- face, // handle to face object
- (int)CHAR_RESOLUTION, // char_width in 1/64th of points
- (int)CHAR_RESOLUTION, // char_height in 1/64th of points
- round_to_int(abs(size[0]*pw*CHAR_RESOLUTION)), // horizontal device resolution
- round_to_int(abs(size[1]*ph*CHAR_RESOLUTION)) ); // vertical device resolution
-
- // Here is where we can compensate for the
- // error in freetype's rendering engine.
- const float xerror(abs(size[0]*pw)/(float)face->size->metrics.x_ppem/1.13f/0.996);
- const float yerror(abs(size[1]*ph)/(float)face->size->metrics.y_ppem/1.13f/0.996);
- //synfig::info("xerror=%f, yerror=%f",xerror,yerror);
- const float compress(Layer_Freetype::compress*xerror);
- const float vcompress(Layer_Freetype::vcompress*yerror);
-
- if(error)
- {
- if(cb)cb->warning(string("Layer_Freetype:")+_("Unable to set face size.")+strprintf(" (err=%d)",error));
- }
-
- FT_GlyphSlot slot = face->glyph; // a small shortcut
- FT_UInt glyph_index(0);
- FT_UInt previous(0);
- int u,v;
-
- std::list<TextLine> lines;
-
- /*
- -- ** -- CREATE GLYPHS -------------------------------------------------------
- */
-
- mbstate_t ps;
- memset(&ps, 0, sizeof(ps));
-
- lines.push_front(TextLine());
- string::const_iterator iter;
- for (iter=text.begin(); iter!=text.end(); ++iter)
- {
- int multiplier(1);
- if(*iter=='\n')
- {
- lines.push_front(TextLine());
- bx=0;
- by=0;
- previous=0;
- continue;
- }
- if(*iter=='\t')
- {
- multiplier=8;
- glyph_index = FT_Get_Char_Index( face, ' ' );
- }
- else
- {
- wchar_t wc;
- size_t converted = mbrtowc(&wc, &(*iter), text.end() - iter, &ps);
-
- if(converted == (size_t)(-1))
- {
- synfig::warning("Layer_Freetype: multibyte: %s",
- _("Invalid multibyte sequence - is the locale set?\n"));
- continue;
- }
-
- if(converted == (size_t)(-2))
- {
- synfig::warning("Layer_Freetype: multibyte: %s",
- _("Can't parse multibyte character.\n"));
- continue;
- }
-
- glyph_index = FT_Get_Char_Index( face, wc );
-
- if(converted > 1)
- iter += converted - 1;
- }
-
- // retrieve kerning distance and move pen position
- if ( FT_HAS_KERNING(face) && use_kerning && previous && glyph_index )
- {
- FT_Vector delta;
-
- if(grid_fit)
- FT_Get_Kerning( face, previous, glyph_index, ft_kerning_default, &delta );
- else
- FT_Get_Kerning( face, previous, glyph_index, ft_kerning_unfitted, &delta );
-
- if(compress<1.0f)
- {
- bx += round_to_int(delta.x*compress);
- by += round_to_int(delta.y*compress);
- }
- else
- {
- bx += delta.x;
- by += delta.y;
- }
- }
-
- Glyph curr_glyph;
-
- // store current pen position
- curr_glyph.pos.x = bx;
- curr_glyph.pos.y = by;
-
- // load glyph image into the slot. DO NOT RENDER IT !!
- if(grid_fit)
- error = FT_Load_Glyph( face, glyph_index, FT_LOAD_DEFAULT);
- else
- error = FT_Load_Glyph( face, glyph_index, FT_LOAD_DEFAULT|FT_LOAD_NO_HINTING );
- if (error) continue; // ignore errors, jump to next glyph
-
- // extract glyph image and store it in our table
- error = FT_Get_Glyph( face->glyph, &curr_glyph.glyph );
- if (error) continue; // ignore errors, jump to next glyph
-
- // record current glyph index
- previous = glyph_index;
-
- // Update the line width
- lines.front().width=bx+slot->advance.x;
-
- // increment pen position
- if(multiplier>1)
- bx += round_to_int(slot->advance.x*multiplier*compress)-bx%round_to_int(slot->advance.x*multiplier*compress);
- else
- bx += round_to_int(slot->advance.x*compress*multiplier);
-
- //bx += round_to_int(slot->advance.x*compress*multiplier);
- //by += round_to_int(slot->advance.y*compress);
- by += slot->advance.y*multiplier;
-
- lines.front().glyph_table.push_back(curr_glyph);
-
- }
-
- //float string_height;
- //string_height=(((lines.size()-1)*face->size->metrics.height+lines.back().actual_height()));
-
- //int string_height=face->size->metrics.ascender;
-//#define METRICS_SCALE_ONE (65536.0f)
-#define METRICS_SCALE_ONE ((float)(1<<16))
-
- float line_height;
- line_height=vcompress*((float)face->height*(((float)face->size->metrics.y_scale/METRICS_SCALE_ONE)));
-
- // This module sees to expect pixel height to be negative, as it
- // usually is. But rendering to .bmp format causes ph to be
- // positive, which was causing text to be rendered upside down.
- if (ph>0) line_height = -line_height;
-
- int string_height;
- string_height=round_to_int(((lines.size()-1)*line_height+lines.back().actual_height()));
- //synfig::info("string_height=%d",string_height);
- //synfig::info("line_height=%f",line_height);
-
- /*
- -- ** -- RENDER THE GLYPHS ---------------------------------------------------
- */
-
- Surface src_;
- Surface *src_surface;
-
- src_surface=surface;
-
- if(invert)
- {
- src_=*surface;
- Surface::alpha_pen pen(surface->begin(),get_amount(),get_blend_method());
-
- surface->fill(color,pen,src_.get_w(),src_.get_h());
-
- src_surface=&src_;
- }
-
- {
- std::list<TextLine>::iterator iter;
- int curr_line;
- for(curr_line=0,iter=lines.begin();iter!=lines.end();++iter,curr_line++)
- {
- bx=round_to_int((origin[0]-renddesc.get_tl()[0])*pw*CHAR_RESOLUTION-orient[0]*iter->width);
- // I've no idea why 1.5, but it kind of works. Otherwise,
- // rendering to .bmp (which renders from bottom to top, due to
- // the .bmp format describing the image from bottom to top,
- // renders text in the wrong place.
- by=round_to_int((origin[1]-renddesc.get_tl()[1])*ph*CHAR_RESOLUTION +
- (1.0-orient[1])*string_height-line_height*curr_line +
- ((ph>0) ? line_height/1.5 : 0));
-
- //by=round_to_int(vcompress*((origin[1]-renddesc.get_tl()[1])*ph*64+(1.0-orient[1])*string_height-face->size->metrics.height*curr_line));
- //synfig::info("curr_line=%d, bx=%d, by=%d",curr_line,bx,by);
-
- std::vector<Glyph>::iterator iter2;
- for(iter2=iter->glyph_table.begin();iter2!=iter->glyph_table.end();++iter2)
- {
- FT_Glyph image(iter2->glyph);
- FT_Vector pen;
- FT_BitmapGlyph bit;
-
- pen.x = bx + iter2->pos.x;
- pen.y = by + iter2->pos.y;
-
- //synfig::info("GLYPH: line %d, pen.x=%d, pen,y=%d",curr_line,(pen.x+32)>>6,(pen.y+32)>>6);
-
- error = FT_Glyph_To_Bitmap( &image, ft_render_mode_normal,0/*&pen*/, 1 );
- if(error) { FT_Done_Glyph( image ); continue; }
-
- bit = (FT_BitmapGlyph)image;
-
- for(v=0;v<bit->bitmap.rows;v++)
- for(u=0;u<bit->bitmap.width;u++)
- {
- int x=u+((pen.x+32)>>6)+ bit->left;
- int y=((pen.y+32)>>6) + (bit->top - v) * ((ph<0) ? -1 : 1);
- if( y>=0 &&
- x>=0 &&
- y<surface->get_h() &&
- x<surface->get_w())
- {
- float myamount=(float)bit->bitmap.buffer[v*bit->bitmap.pitch+u]/255.0f;
- if(invert)
- myamount=1.0f-myamount;
- (*surface)[y][x]=Color::blend(color,(*src_surface)[y][x],myamount*get_amount(),get_blend_method());
- }
- }
-
- FT_Done_Glyph( image );
- }
- //iter->clear_and_free();
- }
- }
-
- return true;
-}
-
-synfig::Rect
-Layer_Freetype::get_bounding_rect()const
-{
- if(needs_sync_)
- const_cast<Layer_Freetype*>(this)->sync();
-// if(!is_disabled())
- return synfig::Rect::full_plane();
-}
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