--- /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();
+}
projects / synfig.git / blobdiff