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godot/scene/resources/dynamic_font.cpp
Rémi Verschelde d8223ffa75 Welcome in 2017, dear changelog reader! 
That year should bring the long-awaited OpenGL ES 3.0 compatible renderer
with state-of-the-art rendering techniques tuned to work as low as middle
end handheld devices - without compromising with the possibilities given
for higher end desktop games of course. Great times ahead for the Godot
community and the gamers that will play our games!

(cherry picked from commit c7bc44d5ad)
2017-01-12 19:15:30 +01:00

968 lines
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/*************************************************************************/
/* dynamic_font.cpp */
/*************************************************************************/
/* This file is part of: */
/* GODOT ENGINE */
/* http://www.godotengine.org */
/*************************************************************************/
/* Copyright (c) 2007-2017 Juan Linietsky, Ariel Manzur. */
/* */
/* Permission is hereby granted, free of charge, to any person obtaining */
/* a copy of this software and associated documentation files (the */
/* "Software"), to deal in the Software without restriction, including */
/* without limitation the rights to use, copy, modify, merge, publish, */
/* distribute, sublicense, and/or sell copies of the Software, and to */
/* permit persons to whom the Software is furnished to do so, subject to */
/* the following conditions: */
/* */
/* The above copyright notice and this permission notice shall be */
/* included in all copies or substantial portions of the Software. */
/* */
/* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, */
/* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF */
/* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.*/
/* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY */
/* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, */
/* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE */
/* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */
/*************************************************************************/
#ifdef FREETYPE_ENABLED
#include "dynamic_font.h"
#include "os/file_access.h"
bool DynamicFontData::CacheID::operator< (CacheID right) const{
if (size<right.size)
return true;
if (mipmaps != right.mipmaps)
return right.mipmaps;
if (filter != right.filter)
return right.filter;
return false;
}
Ref<DynamicFontAtSize> DynamicFontData::_get_dynamic_font_at_size(CacheID p_id){
if (size_cache.has(p_id)) {
return Ref<DynamicFontAtSize>( size_cache[p_id] );
}
Ref<DynamicFontAtSize> dfas;
dfas.instance();
dfas->font=Ref<DynamicFontData>( this );
size_cache[p_id]=dfas.ptr();
dfas->id=p_id;
dfas->_load();
return dfas;
}
void DynamicFontData::set_font_ptr(const uint8_t* p_font_mem,int p_font_mem_size) {
font_mem=p_font_mem;
font_mem_size=p_font_mem_size;
}
void DynamicFontData::set_font_path(const String& p_path) {
font_path=p_path;
}
String DynamicFontData::get_font_path() const {
return font_path;
}
void DynamicFontData::set_force_autohinter(bool p_force) {
force_autohinter=p_force;
}
void DynamicFontData::_bind_methods() {
ObjectTypeDB::bind_method(_MD("set_font_path","path"),&DynamicFontData::set_font_path);
ObjectTypeDB::bind_method(_MD("get_font_path"),&DynamicFontData::get_font_path);
ADD_PROPERTY(PropertyInfo(Variant::STRING,"font_path",PROPERTY_HINT_FILE,"*.ttf,*.otf"),_SCS("set_font_path"),_SCS("get_font_path"));
}
DynamicFontData::DynamicFontData()
{
force_autohinter=false;
font_mem=NULL;
font_mem_size=0;
}
DynamicFontData::~DynamicFontData()
{
}
////////////////////
Error DynamicFontAtSize::_load() {
int error = FT_Init_FreeType( &library );
ERR_EXPLAIN(TTR("Error initializing FreeType."));
ERR_FAIL_COND_V( error !=0, ERR_CANT_CREATE );
if (font->font_path!=String()) {
FileAccess *f=FileAccess::open(font->font_path,FileAccess::READ);
ERR_FAIL_COND_V(!f,ERR_CANT_OPEN);
memset(&stream,0,sizeof(FT_StreamRec));
stream.base=NULL;
stream.size=f->get_len();
stream.pos=0;
stream.descriptor.pointer=f;
stream.read=_ft_stream_io;
stream.close=_ft_stream_close;
FT_Open_Args fargs;
memset(&fargs,0,sizeof(FT_Open_Args));
fargs.flags=FT_OPEN_STREAM;
fargs.stream=&stream;
error = FT_Open_Face( library,&fargs,0,&face);
} else if (font->font_mem) {
memset(&stream,0,sizeof(FT_StreamRec));
stream.base=(unsigned char*)font->font_mem;
stream.size=font->font_mem_size;
stream.pos=0;
FT_Open_Args fargs;
memset(&fargs,0,sizeof(FT_Open_Args));
fargs.memory_base=(unsigned char*)font->font_mem;
fargs.memory_size=font->font_mem_size;
fargs.flags= FT_OPEN_MEMORY;
fargs.stream=&stream;
error = FT_Open_Face( library,&fargs,0,&face);
} else {
ERR_EXPLAIN("DynamicFont uninitialized");
ERR_FAIL_V(ERR_UNCONFIGURED);
}
//error = FT_New_Face( library, src_path.utf8().get_data(),0,&face );
if ( error == FT_Err_Unknown_File_Format ) {
ERR_EXPLAIN(TTR("Unknown font format."));
FT_Done_FreeType( library );
} else if ( error ) {
ERR_EXPLAIN(TTR("Error loading font."));
FT_Done_FreeType( library );
}
ERR_FAIL_COND_V(error,ERR_FILE_CANT_OPEN);
/*error = FT_Set_Char_Size(face,0,64*size,512,512);
if ( error ) {
FT_Done_FreeType( library );
ERR_EXPLAIN(TTR("Invalid font size."));
ERR_FAIL_COND_V( error, ERR_INVALID_PARAMETER );
}*/
error = FT_Set_Pixel_Sizes(face,0,id.size);
ascent=face->size->metrics.ascender>>6;
descent=-face->size->metrics.descender>>6;
linegap=0;
texture_flags=0;
if (id.mipmaps)
texture_flags|=Texture::FLAG_MIPMAPS;
if (id.filter)
texture_flags|=Texture::FLAG_FILTER;
//print_line("ASCENT: "+itos(ascent)+" descent "+itos(descent)+" hinted: "+itos(face->face_flags&FT_FACE_FLAG_HINTER));
valid=true;
return OK;
}
float DynamicFontAtSize::get_height() const {
return ascent+descent;
}
float DynamicFontAtSize::get_ascent() const {
return ascent;
}
float DynamicFontAtSize::get_descent() const {
return descent;
}
Size2 DynamicFontAtSize::get_char_size(CharType p_char,CharType p_next,const Vector<Ref<DynamicFontAtSize> >& p_fallbacks) const {
if (!valid)
return Size2(1,1);
const_cast<DynamicFontAtSize*>(this)->_update_char(p_char);
const Character *c = char_map.getptr(p_char);
ERR_FAIL_COND_V(!c,Size2());
Size2 ret(0,get_height());
if (!c->found) {
//not found, try in fallbacks
for(int i=0;i<p_fallbacks.size();i++) {
DynamicFontAtSize *fb = const_cast<DynamicFontAtSize*>(p_fallbacks[i].ptr());
if (!fb->valid)
continue;
fb->_update_char(p_char);
const Character *ch = fb->char_map.getptr(p_char);
ERR_CONTINUE(!ch);
if (!ch->found)
continue;
c=ch;
break;
}
//not found, try 0xFFFD to display 'not found'.
if (!c->found) {
const_cast<DynamicFontAtSize*>(this)->_update_char(0xFFFD);
c = char_map.getptr(0xFFFD);
ERR_FAIL_COND_V(!c,Size2());
}
}
if (c->found) {
ret.x=c->advance;
}
if (p_next) {
FT_Vector delta;
FT_Get_Kerning( face, p_char,p_next, FT_KERNING_DEFAULT, &delta );
if (delta.x==0) {
for(int i=0;i<p_fallbacks.size();i++) {
DynamicFontAtSize *fb = const_cast<DynamicFontAtSize*>(p_fallbacks[i].ptr());
if (!fb->valid)
continue;
FT_Get_Kerning( fb->face, p_char,p_next, FT_KERNING_DEFAULT, &delta );
if (delta.x==0)
continue;
ret.x+=delta.x>>6;
break;
}
} else {
ret.x+=delta.x>>6;
}
}
return ret;
}
void DynamicFontAtSize::set_texture_flags(uint32_t p_flags){
texture_flags=p_flags;
for(int i=0;i<textures.size();i++) {
Ref<ImageTexture> &tex = textures[i].texture;
if (!tex.is_null())
tex->set_flags(p_flags);
}
}
float DynamicFontAtSize::draw_char(RID p_canvas_item, const Point2& p_pos, CharType p_char,CharType p_next,const Color& p_modulate,const Vector<Ref<DynamicFontAtSize> >& p_fallbacks) const {
if (!valid)
return 0;
const_cast<DynamicFontAtSize*>(this)->_update_char(p_char);
const Character * c = char_map.getptr(p_char);
float advance=0;
if (!c->found) {
//not found, try in fallbacks
bool used_fallback=false;
for(int i=0;i<p_fallbacks.size();i++) {
DynamicFontAtSize *fb = const_cast<DynamicFontAtSize*>(p_fallbacks[i].ptr());
if (!fb->valid)
continue;
fb->_update_char(p_char);
const Character *ch = fb->char_map.getptr(p_char);
ERR_CONTINUE(!ch);
if (!ch->found)
continue;
Point2 cpos=p_pos;
cpos.x+=ch->h_align;
cpos.y-=get_ascent();
cpos.y+=ch->v_align;
ERR_FAIL_COND_V( ch->texture_idx<-1 || ch->texture_idx>=fb->textures.size(),0);
if (ch->texture_idx!=-1)
VisualServer::get_singleton()->canvas_item_add_texture_rect_region( p_canvas_item, Rect2( cpos, ch->rect.size ), fb->textures[ch->texture_idx].texture->get_rid(),ch->rect, p_modulate );
advance=ch->advance;
used_fallback=true;
break;
}
//not found, try 0xFFFD to display 'not found'.
if (!used_fallback) {
const_cast<DynamicFontAtSize*>(this)->_update_char(0xFFFD);
c = char_map.getptr(0xFFFD);
}
}
if (c->found) {
Point2 cpos=p_pos;
cpos.x+=c->h_align;
cpos.y-=get_ascent();
cpos.y+=c->v_align;
ERR_FAIL_COND_V( c->texture_idx<-1 || c->texture_idx>=textures.size(),0);
if (c->texture_idx!=-1)
VisualServer::get_singleton()->canvas_item_add_texture_rect_region( p_canvas_item, Rect2( cpos, c->rect.size ), textures[c->texture_idx].texture->get_rid(),c->rect, p_modulate );
advance=c->advance;
//textures[c->texture_idx].texture->draw(p_canvas_item,Vector2());
}
if (p_next) {
FT_Vector delta;
FT_Get_Kerning( face, p_char,p_next, FT_KERNING_DEFAULT, &delta );
if (delta.x==0) {
for(int i=0;i<p_fallbacks.size();i++) {
DynamicFontAtSize *fb = const_cast<DynamicFontAtSize*>(p_fallbacks[i].ptr());
if (!fb->valid)
continue;
FT_Get_Kerning( fb->face, p_char,p_next, FT_KERNING_DEFAULT, &delta );
if (delta.x==0)
continue;
advance+=delta.x>>6;
break;
}
} else {
advance+=delta.x>>6;
}
}
return advance;
}
unsigned long DynamicFontAtSize::_ft_stream_io(FT_Stream stream, unsigned long offset, unsigned char* buffer, unsigned long count ) {
FileAccess *f=(FileAccess*)stream->descriptor.pointer;
if (f->get_pos()!=offset) {
f->seek(offset);
}
if (count==0)
return 0;
return f->get_buffer(buffer,count);
}
void DynamicFontAtSize::_ft_stream_close(FT_Stream stream) {
FileAccess *f=(FileAccess*)stream->descriptor.pointer;
f->close();
memdelete(f);
}
void DynamicFontAtSize::_update_char(CharType p_char) {
if (char_map.has(p_char))
return;
_THREAD_SAFE_METHOD_
FT_GlyphSlot slot = face->glyph;
if (FT_Get_Char_Index( face, p_char)==0) {
//not found
Character ch;
ch.texture_idx=-1;
ch.advance=0;
ch.h_align=0;
ch.v_align=0;
ch.found=false;
char_map[p_char]=ch;
return;
}
int error = FT_Load_Char( face, p_char, FT_LOAD_RENDER|(font->force_autohinter?FT_LOAD_FORCE_AUTOHINT:0) );
if (!error) {
error = FT_Render_Glyph( face->glyph, ft_render_mode_normal );
}
if (error) {
int advance=0;
//stbtt_GetCodepointHMetrics(&font->info, p_char, &advance, 0);
//print_line("char has no bitmap: "+itos(p_char)+" but advance is "+itos(advance*scale));
Character ch;
ch.texture_idx=-1;
ch.advance=advance;
ch.h_align=0;
ch.v_align=0;
ch.found=false;
char_map[p_char]=ch;
return;
}
int w = slot->bitmap.width;
int h = slot->bitmap.rows;
//int p = slot->bitmap.pitch;
int yofs=slot->bitmap_top;
int xofs=slot->bitmap_left;
int advance=slot->advance.x>>6;
int mw=w+rect_margin*2;
int mh=h+rect_margin*2;
if (mw>4096 || mh>4096) {
ERR_FAIL_COND(mw>4096);
ERR_FAIL_COND(mh>4096);
}
//find a texture to fit this...
int tex_index=-1;
int tex_x=0;
int tex_y=0;
for(int i=0;i<textures.size();i++) {
CharTexture &ct=textures[i];
if (mw > ct.texture_size || mh > ct.texture_size) //too big for this texture
continue;
tex_y=0x7FFFFFFF;
tex_x=0;
for(int j=0;j<ct.texture_size-mw;j++) {
int max_y=0;
for(int k=j;k<j+mw;k++) {
int y = ct.offsets[k];
if (y>max_y)
max_y=y;
}
if (max_y<tex_y) {
tex_y=max_y;
tex_x=j;
}
}
if (tex_y==0x7FFFFFFF || tex_y+mh > ct.texture_size)
continue; //fail, could not fit it here
tex_index=i;
break;
}
// print_line("CHAR: "+String::chr(p_char)+" TEX INDEX: "+itos(tex_index)+" X: "+itos(tex_x)+" Y: "+itos(tex_y));
if (tex_index==-1) {
//could not find texture to fit, create one
tex_x = 0;
tex_y = 0;
int texsize = MAX(id.size*8,256);
if (mw>texsize)
texsize=mw; //special case, adapt to it?
if (mh>texsize)
texsize=mh; //special case, adapt to it?
texsize=nearest_power_of_2(texsize);
texsize=MIN(texsize,4096);
CharTexture tex;
tex.texture_size=texsize;
tex.imgdata.resize(texsize*texsize*2); //grayscale alpha
{
//zero texture
DVector<uint8_t>::Write w = tex.imgdata.write();
ERR_FAIL_COND(texsize*texsize*2 > tex.imgdata.size());
for(int i=0;i<texsize*texsize*2;i++) {
w[i]=0;
}
}
tex.offsets.resize(texsize);
for(int i=0;i<texsize;i++) //zero offsets
tex.offsets[i]=0;
textures.push_back(tex);
tex_index=textures.size()-1;
}
//fit character in char texture
CharTexture &tex=textures[tex_index];
{
DVector<uint8_t>::Write wr = tex.imgdata.write();
for(int i=0;i<h;i++) {
for(int j=0;j<w;j++) {
int ofs = ( (i+tex_y+rect_margin)*tex.texture_size+j+tex_x+rect_margin)*2;
ERR_FAIL_COND(ofs >= tex.imgdata.size());
wr[ofs+0]=255; //grayscale as 1
wr[ofs+1]=slot->bitmap.buffer[i*slot->bitmap.width+j];
}
}
}
//blit to image and texture
{
Image img(tex.texture_size,tex.texture_size,0,Image::FORMAT_GRAYSCALE_ALPHA,tex.imgdata);
if (tex.texture.is_null()) {
tex.texture.instance();
tex.texture->create_from_image(img,Texture::FLAG_VIDEO_SURFACE|texture_flags);
} else {
tex.texture->set_data(img); //update
}
}
// update height array
for(int k=tex_x;k<tex_x+mw;k++) {
tex.offsets[k]=tex_y+mh;
}
Character chr;
chr.h_align=xofs;
chr.v_align=ascent-yofs;// + ascent - descent;
chr.advance=advance;
chr.texture_idx=tex_index;
chr.found=true;
chr.rect=Rect2(tex_x+rect_margin,tex_y+rect_margin,w,h);
//print_line("CHAR: "+String::chr(p_char)+" TEX INDEX: "+itos(tex_index)+" RECT: "+chr.rect+" X OFS: "+itos(xofs)+" Y OFS: "+itos(yofs));
char_map[p_char]=chr;
}
DynamicFontAtSize::DynamicFontAtSize() {
valid=false;
rect_margin=1;
ascent=1;
descent=1;
linegap=1;
texture_flags=0;
}
DynamicFontAtSize::~DynamicFontAtSize(){
if (valid) {
FT_Done_FreeType( library );
font->size_cache.erase(id);
}
}
/////////////////////////
void DynamicFont::_reload_cache(){
ERR_FAIL_COND(cache_id.size<1);
if (!data.is_valid())
return;
data_at_size=data->_get_dynamic_font_at_size(cache_id);
for (int i=0;i<fallbacks.size();i++){
fallback_data_at_size[i]=fallbacks[i]->_get_dynamic_font_at_size(cache_id);
}
emit_changed();
_change_notify();
}
void DynamicFont::set_font_data(const Ref<DynamicFontData>& p_data) {
data=p_data;
if (data.is_valid())
data_at_size=data->_get_dynamic_font_at_size(cache_id);
else
data_at_size=Ref<DynamicFontAtSize>();
emit_changed();
}
Ref<DynamicFontData> DynamicFont::get_font_data() const{
return data;
}
void DynamicFont::set_size(int p_size){
if (cache_id.size==p_size)
return;
cache_id.size=p_size;
_reload_cache();
}
int DynamicFont::get_size() const{
return cache_id.size;
}
bool DynamicFont::get_use_mipmaps() const{
return cache_id.mipmaps;
}
void DynamicFont::set_use_mipmaps(bool p_enable){
if (cache_id.mipmaps==p_enable)
return;
cache_id.mipmaps=p_enable;
_reload_cache();
}
bool DynamicFont::get_use_filter() const{
return cache_id.filter;
}
void DynamicFont::set_use_filter(bool p_enable){
if (cache_id.filter==p_enable)
return;
cache_id.filter=p_enable;
_reload_cache();
}
int DynamicFont::get_spacing(int p_type) const{
if (p_type == SPACING_TOP){
return spacing_top;
}else if (p_type == SPACING_BOTTOM){
return spacing_bottom;
}else if (p_type == SPACING_CHAR){
return spacing_char;
}else if (p_type == SPACING_SPACE){
return spacing_space;
}
return 0;
}
void DynamicFont::set_spacing(int p_type, int p_value){
if (p_type == SPACING_TOP){
spacing_top=p_value;
}else if (p_type == SPACING_BOTTOM){
spacing_bottom=p_value;
}else if (p_type == SPACING_CHAR){
spacing_char=p_value;
}else if (p_type == SPACING_SPACE){
spacing_space=p_value;
}
emit_changed();
_change_notify();
}
float DynamicFont::get_height() const{
if (!data_at_size.is_valid())
return 1;
return data_at_size->get_height()+spacing_top+spacing_bottom;
}
float DynamicFont::get_ascent() const{
if (!data_at_size.is_valid())
return 1;
return data_at_size->get_ascent()+spacing_top;
}
float DynamicFont::get_descent() const{
if (!data_at_size.is_valid())
return 1;
return data_at_size->get_descent()+spacing_bottom;
}
Size2 DynamicFont::get_char_size(CharType p_char,CharType p_next) const{
if (!data_at_size.is_valid())
return Size2(1,1);
Size2 ret=data_at_size->get_char_size(p_char,p_next,fallback_data_at_size);
if (p_char==' ')
ret.width+=spacing_space+spacing_char;
else if (p_next)
ret.width+=spacing_char;
return ret;
}
bool DynamicFont::is_distance_field_hint() const{
return false;
}
float DynamicFont::draw_char(RID p_canvas_item, const Point2& p_pos, CharType p_char,CharType p_next,const Color& p_modulate) const {
if (!data_at_size.is_valid())
return 0;
return data_at_size->draw_char(p_canvas_item,p_pos,p_char,p_next,p_modulate,fallback_data_at_size)+spacing_char;
}
void DynamicFont::set_fallback(int p_idx,const Ref<DynamicFontData>& p_data) {
ERR_FAIL_COND(p_data.is_null());
ERR_FAIL_INDEX(p_idx,fallbacks.size());
fallbacks[p_idx]=p_data;
fallback_data_at_size[p_idx]=fallbacks[p_idx]->_get_dynamic_font_at_size(cache_id);
}
void DynamicFont::add_fallback(const Ref<DynamicFontData>& p_data) {
ERR_FAIL_COND(p_data.is_null());
fallbacks.push_back(p_data);
fallback_data_at_size.push_back(fallbacks[fallbacks.size()-1]->_get_dynamic_font_at_size(cache_id)); //const..
_change_notify();
emit_changed();
_change_notify();
}
int DynamicFont::get_fallback_count() const {
return fallbacks.size();
}
Ref<DynamicFontData> DynamicFont::get_fallback(int p_idx) const {
ERR_FAIL_INDEX_V(p_idx,fallbacks.size(),Ref<DynamicFontData>());
return fallbacks[p_idx];
}
void DynamicFont::remove_fallback(int p_idx) {
ERR_FAIL_INDEX(p_idx,fallbacks.size());
fallbacks.remove(p_idx);
fallback_data_at_size.remove(p_idx);
emit_changed();
_change_notify();
}
bool DynamicFont::_set(const StringName& p_name, const Variant& p_value) {
String str = p_name;
if (str.begins_with("fallback/")) {
int idx = str.get_slicec('/',1).to_int();
Ref<DynamicFontData> fd = p_value;
if (fd.is_valid()) {
if (idx==fallbacks.size()) {
add_fallback(fd);
return true;
} else if (idx>=0 && idx<fallbacks.size()) {
set_fallback(idx,fd);
return true;
} else {
return false;
}
} else if (idx>=0 && idx<fallbacks.size()) {
remove_fallback(idx);
return true;
}
}
return false;
}
bool DynamicFont::_get(const StringName& p_name,Variant &r_ret) const{
String str = p_name;
if (str.begins_with("fallback/")) {
int idx = str.get_slicec('/',1).to_int();
if (idx==fallbacks.size()) {
r_ret=Ref<DynamicFontData>();
return true;
} else if (idx>=0 && idx<fallbacks.size()) {
r_ret=get_fallback(idx);
return true;
}
}
return false;
}
void DynamicFont::_get_property_list( List<PropertyInfo> *p_list) const{
for(int i=0;i<fallbacks.size();i++) {
p_list->push_back(PropertyInfo(Variant::OBJECT,"fallback/"+itos(i),PROPERTY_HINT_RESOURCE_TYPE,"DynamicFontData"));
}
p_list->push_back(PropertyInfo(Variant::OBJECT,"fallback/"+itos(fallbacks.size()),PROPERTY_HINT_RESOURCE_TYPE,"DynamicFontData"));
}
void DynamicFont::_bind_methods() {
ObjectTypeDB::bind_method(_MD("set_font_data","data:DynamicFontData"),&DynamicFont::set_font_data);
ObjectTypeDB::bind_method(_MD("get_font_data:DynamicFontData"),&DynamicFont::get_font_data);
ObjectTypeDB::bind_method(_MD("set_size","data"),&DynamicFont::set_size);
ObjectTypeDB::bind_method(_MD("get_size"),&DynamicFont::get_size);
ObjectTypeDB::bind_method(_MD("set_use_mipmaps","enable"),&DynamicFont::set_use_mipmaps);
ObjectTypeDB::bind_method(_MD("get_use_mipmaps"),&DynamicFont::get_use_mipmaps);
ObjectTypeDB::bind_method(_MD("set_use_filter","enable"),&DynamicFont::set_use_filter);
ObjectTypeDB::bind_method(_MD("get_use_filter"),&DynamicFont::get_use_filter);
ObjectTypeDB::bind_method(_MD("set_spacing","type","value"),&DynamicFont::set_spacing);
ObjectTypeDB::bind_method(_MD("get_spacing","type"),&DynamicFont::get_spacing);
ObjectTypeDB::bind_method(_MD("add_fallback","data:DynamicFontData"),&DynamicFont::add_fallback);
ObjectTypeDB::bind_method(_MD("set_fallback","idx","data:DynamicFontData"),&DynamicFont::set_fallback);
ObjectTypeDB::bind_method(_MD("get_fallback:DynamicFontData","idx"),&DynamicFont::get_fallback);
ObjectTypeDB::bind_method(_MD("remove_fallback","idx"),&DynamicFont::remove_fallback);
ObjectTypeDB::bind_method(_MD("get_fallback_count"),&DynamicFont::get_fallback_count);
ADD_PROPERTY(PropertyInfo(Variant::INT,"font/size"),_SCS("set_size"),_SCS("get_size"));
ADD_PROPERTYINZ(PropertyInfo(Variant::INT,"extra_spacing/top"),_SCS("set_spacing"),_SCS("get_spacing"),SPACING_TOP);
ADD_PROPERTYINZ(PropertyInfo(Variant::INT,"extra_spacing/bottom"),_SCS("set_spacing"),_SCS("get_spacing"),SPACING_BOTTOM);
ADD_PROPERTYINZ(PropertyInfo(Variant::INT,"extra_spacing/char"),_SCS("set_spacing"),_SCS("get_spacing"),SPACING_CHAR);
ADD_PROPERTYINZ(PropertyInfo(Variant::INT,"extra_spacing/space"),_SCS("set_spacing"),_SCS("get_spacing"),SPACING_SPACE);
ADD_PROPERTY(PropertyInfo(Variant::BOOL,"font/use_mipmaps"),_SCS("set_use_mipmaps"),_SCS("get_use_mipmaps"));
ADD_PROPERTY(PropertyInfo(Variant::BOOL,"font/use_filter"),_SCS("set_use_filter"),_SCS("get_use_filter"));
ADD_PROPERTY(PropertyInfo(Variant::OBJECT,"font/font",PROPERTY_HINT_RESOURCE_TYPE,"DynamicFontData"),_SCS("set_font_data"),_SCS("get_font_data"));
BIND_CONSTANT( SPACING_TOP );
BIND_CONSTANT( SPACING_BOTTOM );
BIND_CONSTANT( SPACING_CHAR );
BIND_CONSTANT( SPACING_SPACE );
}
DynamicFont::DynamicFont() {
spacing_top=0;
spacing_bottom=0;
spacing_char=0;
spacing_space=0;
}
DynamicFont::~DynamicFont() {
}
/////////////////////////
RES ResourceFormatLoaderDynamicFont::load(const String &p_path, const String& p_original_path, Error *r_error) {
if (r_error)
*r_error=ERR_FILE_CANT_OPEN;
Ref<DynamicFontData> dfont;
dfont.instance();;
dfont->set_font_path(p_path);
if (r_error)
*r_error=OK;
return dfont;
}
void ResourceFormatLoaderDynamicFont::get_recognized_extensions(List<String> *p_extensions) const {
p_extensions->push_back("ttf");
p_extensions->push_back("otf");
}
bool ResourceFormatLoaderDynamicFont::handles_type(const String& p_type) const {
return (p_type=="DynamicFontData");
}
String ResourceFormatLoaderDynamicFont::get_resource_type(const String &p_path) const {
String el = p_path.extension().to_lower();
if (el=="ttf" || el=="otf")
return "DynamicFontData";
return "";
}
#endif
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