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-rw-r--r--scene/resources/font.cpp554
1 files changed, 554 insertions, 0 deletions
diff --git a/scene/resources/font.cpp b/scene/resources/font.cpp
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+++ b/scene/resources/font.cpp
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+/*************************************************************************/
+/* font.cpp */
+/*************************************************************************/
+/* This file is part of: */
+/* GODOT ENGINE */
+/* http://www.godotengine.org */
+/*************************************************************************/
+/* Copyright (c) 2007-2014 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. */
+/*************************************************************************/
+#include "font.h"
+
+#include "core/os/file_access.h"
+#include "core/io/resource_loader.h"
+
+void Font::_set_chars(const DVector<int>& p_chars) {
+
+ int len = p_chars.size();
+ //char 1 charsize 1 texture, 4 rect, 2 align, advance 1
+ ERR_FAIL_COND(len%9);
+ if (!len)
+ return; //none to do
+ int chars = len/9;
+
+
+ DVector<int>::Read r=p_chars.read();
+ for(int i=0;i<chars;i++) {
+
+ const int* data = &r[i*9];
+ add_char(data[0],data[1],Rect2(data[2],data[3],data[4],data[5]), Size2(data[6],data[7]),data[8]);
+ }
+
+}
+
+DVector<int> Font::_get_chars() const {
+
+ DVector<int> chars;
+
+ const CharType* key=NULL;
+
+ while((key=char_map.next(key))) {
+
+ const Character *c=char_map.getptr(*key);
+ chars.push_back(*key);
+ chars.push_back(c->texture_idx);
+ chars.push_back(c->rect.pos.x);
+ chars.push_back(c->rect.pos.y);
+
+ chars.push_back(c->rect.size.x);
+ chars.push_back(c->rect.size.y);
+ chars.push_back(c->h_align);
+ chars.push_back(c->v_align);
+ chars.push_back(c->advance);
+ }
+
+ return chars;
+}
+
+void Font::_set_kernings(const DVector<int>& p_kernings) {
+
+ int len=p_kernings.size();
+ ERR_FAIL_COND(len%3);
+ if (!len)
+ return;
+ DVector<int>::Read r=p_kernings.read();
+
+ for(int i=0;i<len/3;i++) {
+
+ const int* data = &r[i*3];
+ add_kerning_pair(data[0],data[1],data[2]);
+ }
+}
+
+DVector<int> Font::_get_kernings() const {
+
+ DVector<int> kernings;
+
+ for(Map<KerningPairKey,int>::Element *E=kerning_map.front();E;E=E->next()) {
+
+ kernings.push_back(E->key().A);
+ kernings.push_back(E->key().B);
+ kernings.push_back(E->get());
+ }
+
+ return kernings;
+}
+
+
+void Font::_set_textures(const Vector<Variant> & p_textures) {
+
+ for(int i=0;i<p_textures.size();i++) {
+ Ref<Texture> tex = p_textures[i];
+ ERR_CONTINUE(!tex.is_valid());
+ add_texture(tex);
+ }
+
+}
+
+Vector<Variant> Font::_get_textures() const {
+
+ Vector<Variant> rtextures;
+ for(int i=0;i<textures.size();i++)
+ rtextures.push_back(textures[i].get_ref_ptr());
+ return rtextures;
+}
+
+Error Font::create_from_fnt(const String& p_string) {
+ //fnt format used by angelcode bmfont
+ //http://www.angelcode.com/products/bmfont/
+
+ FileAccess *f = FileAccess::open(p_string,FileAccess::READ);
+
+ if (!f) {
+ ERR_EXPLAIN("Can't open font: "+p_string);
+ ERR_FAIL_V(ERR_FILE_NOT_FOUND);
+ }
+
+ clear();
+
+ while(true) {
+
+ String line=f->get_line();
+
+ int delimiter=line.find(" ");
+ String type=line.substr(0,delimiter);
+ int pos = delimiter+1;
+ Map<String,String> keys;
+
+ while (pos < line.size() && line[pos]==' ')
+ pos++;
+
+
+ while(pos<line.size()) {
+
+ int eq = line.find("=",pos);
+ if (eq==-1)
+ break;
+ String key=line.substr(pos,eq-pos);
+ int end=-1;
+ String value;
+ if (line[eq+1]=='"') {
+ end=line.find("\"",eq+2);
+ if (end==-1)
+ break;
+ value=line.substr(eq+2,end-1-eq-1);
+ pos=end+1;
+ } else {
+ end=line.find(" ",eq+1);
+ if (end==-1)
+ end=line.size();
+
+ value=line.substr(eq+1,end-eq);
+
+ pos=end;
+
+ }
+
+ while (pos<line.size() && line[pos]==' ')
+ pos++;
+
+
+ keys[key]=value;
+
+ }
+
+
+ if (type=="info") {
+
+ if (keys.has("face"))
+ set_name(keys["face"]);
+ //if (keys.has("size"))
+ // font->set_height(keys["size"].to_int());
+
+ } else if (type=="common") {
+
+ if (keys.has("lineHeight"))
+ set_height(keys["lineHeight"].to_int());
+ if (keys.has("base"))
+ set_ascent(keys["base"].to_int());
+
+ } else if (type=="page") {
+
+ if (keys.has("file")) {
+
+ String file = keys["file"];
+ file=p_string.get_base_dir()+"/"+file;
+ Ref<Texture> tex = ResourceLoader::load(file);
+ if (tex.is_null()) {
+ ERR_PRINT("Can't load font texture!");
+ } else {
+ add_texture(tex);
+ }
+ }
+ } else if (type=="char") {
+
+ CharType idx=0;
+ if (keys.has("id"))
+ idx=keys["id"].to_int();
+
+ Rect2 rect;
+
+ if (keys.has("x"))
+ rect.pos.x=keys["x"].to_int();
+ if (keys.has("y"))
+ rect.pos.y=keys["y"].to_int();
+ if (keys.has("width"))
+ rect.size.width=keys["width"].to_int();
+ if (keys.has("height"))
+ rect.size.height=keys["height"].to_int();
+
+ Point2 ofs;
+
+ if (keys.has("xoffset"))
+ ofs.x=keys["xoffset"].to_int();
+ if (keys.has("yoffset"))
+ ofs.y=keys["yoffset"].to_int();
+
+ int texture=0;
+ if (keys.has("page"))
+ texture=keys["page"].to_int();
+ int advance=-1;
+ if (keys.has("xadvance"))
+ advance=keys["xadvance"].to_int();
+
+ add_char(idx,texture,rect,ofs,advance);
+
+ } else if (type=="kerning") {
+
+ CharType first=0,second=0;
+ int k=0;
+
+ if (keys.has("first"))
+ first=keys["first"].to_int();
+ if (keys.has("second"))
+ second=keys["second"].to_int();
+ if (keys.has("amount"))
+ k=keys["amount"].to_int();
+
+ add_kerning_pair(first,second,-k);
+
+ }
+
+ if (f->eof_reached())
+ break;
+ }
+
+
+
+ memdelete(f);
+
+ return OK;
+}
+
+
+
+void Font::set_height(float p_height) {
+
+ height=p_height;
+}
+float Font::get_height() const{
+
+ return height;
+}
+
+void Font::set_ascent(float p_ascent){
+
+ ascent=p_ascent;
+}
+float Font::get_ascent() const {
+
+ return ascent;
+}
+float Font::get_descent() const {
+
+ return height-ascent;
+}
+
+void Font::add_texture(const Ref<Texture>& p_texture) {
+
+ ERR_FAIL_COND( p_texture.is_null());
+ textures.push_back( p_texture );
+}
+
+int Font::get_texture_count() const {
+
+ return textures.size();
+};
+
+Ref<Texture> Font::get_texture(int p_idx) const {
+
+ ERR_FAIL_INDEX_V(p_idx, textures.size(), Ref<Texture>());
+ return textures[p_idx];
+};
+
+int Font::get_character_count() const {
+
+ return char_map.size();
+};
+
+Vector<CharType> Font::get_char_keys() const {
+
+ Vector<CharType> chars;
+ chars.resize(char_map.size());
+ const CharType* ct = NULL;
+ int count = 0;
+ while ( (ct = char_map.next(ct)) ) {
+
+ chars[count++] = *ct;
+ };
+
+ return chars;
+};
+
+Font::Character Font::get_character(CharType p_char) const {
+
+ if (!char_map.has(p_char)) {
+ ERR_FAIL_V(Character());
+ };
+
+ return char_map[p_char];
+};
+
+void Font::add_char(CharType p_char, int p_texture_idx, const Rect2& p_rect, const Size2& p_align, float p_advance) {
+
+ if (p_advance<0)
+ p_advance=p_rect.size.width;
+
+ Character c;
+ c.rect=p_rect;
+ c.texture_idx=p_texture_idx;
+ c.v_align=p_align.y;
+ c.advance=p_advance;
+ c.h_align=p_align.x;
+
+ char_map[p_char]=c;
+}
+
+void Font::add_kerning_pair(CharType p_A,CharType p_B,int p_kerning) {
+
+
+ KerningPairKey kpk;
+ kpk.A=p_A;
+ kpk.B=p_B;
+
+ if (p_kerning==0 && kerning_map.has(kpk)) {
+
+ kerning_map.erase(kpk);
+ } else {
+
+ kerning_map[kpk]=p_kerning;
+ }
+}
+
+Vector<Font::KerningPairKey> Font::get_kerning_pair_keys() const {
+
+
+ Vector<Font::KerningPairKey> ret;
+ ret.resize(kerning_map.size());
+ int i=0;
+
+ for (Map<KerningPairKey,int>::Element *E=kerning_map.front();E;E=E->next()) {
+ ret[i++]=E->key();
+
+ }
+
+ return ret;
+
+}
+
+int Font::get_kerning_pair(CharType p_A,CharType p_B) const {
+
+ KerningPairKey kpk;
+ kpk.A=p_A;
+ kpk.B=p_B;
+
+ const Map<KerningPairKey,int>::Element *E=kerning_map.find(kpk);
+ if (E)
+ return E->get();
+
+ return 0;
+}
+
+
+void Font::clear() {
+
+ height=1;
+ ascent=0;
+ char_map.clear();
+ textures.clear();
+ kerning_map.clear();
+}
+
+Size2 Font::get_string_size(const String& p_string) const {
+
+ float w=0;
+
+ int l = p_string.length();
+ if (l==0)
+ return Size2(0,height);
+ const CharType *sptr = &p_string[0];
+
+ for (int i=0;i<l;i++) {
+
+ w+=get_char_size(sptr[i],sptr[i+1]).width;
+ }
+
+ return Size2(w,height);
+}
+
+void Font::draw_halign(RID p_canvas_item, const Point2& p_pos, HAlign p_align,float p_width,const String& p_text,const Color& p_modulate) const {
+
+ float length=get_string_size(p_text).width;
+ if (length>=p_width) {
+ draw(p_canvas_item,p_pos,p_text,p_modulate,p_width);
+ return;
+ }
+
+ float ofs;
+ switch(p_align) {
+ case HALIGN_LEFT: {
+ ofs=0;
+ } break;
+ case HALIGN_CENTER: {
+ ofs = Math::floor( (p_width-length) / 2.0 );
+ } break;
+ case HALIGN_RIGHT: {
+ ofs=p_width-length;
+ } break;
+ }
+ draw(p_canvas_item,p_pos+Point2(ofs,0),p_text,p_modulate,p_width);
+}
+
+void Font::draw(RID p_canvas_item, const Point2& p_pos, const String& p_text, const Color& p_modulate,int p_clip_w) const {
+
+ Point2 pos=p_pos;
+ float ofs=0;
+ VisualServer *vs = VisualServer::get_singleton();
+
+ for (int i=0;i<p_text.length();i++) {
+
+ const Character * c = char_map.getptr(p_text[i]);
+
+ if (!c)
+ continue;
+
+// if (p_clip_w>=0 && (ofs+c->rect.size.width)>(p_clip_w))
+// break; //width exceeded
+
+ if (p_clip_w>=0 && (ofs+c->rect.size.width)>p_clip_w)
+ break; //clip
+ Point2 cpos=pos;
+ cpos.x+=ofs+c->h_align;
+ cpos.y-=ascent;
+ cpos.y+=c->v_align;
+ ERR_CONTINUE( c->texture_idx<-1 || c->texture_idx>=textures.size());
+ if (c->texture_idx!=-1)
+ textures[c->texture_idx]->draw_rect_region( p_canvas_item, Rect2( cpos, c->rect.size ), c->rect, p_modulate );
+
+ ofs+=get_char_size(p_text[i],p_text[i+1]).width;
+ }
+}
+
+float Font::draw_char(RID p_canvas_item, const Point2& p_pos, const CharType& p_char,const CharType& p_next,const Color& p_modulate) const {
+
+ const Character * c = char_map.getptr(p_char);
+
+ if (!c)
+ return 0;
+
+ Point2 cpos=p_pos;
+ cpos.x+=c->h_align;
+ cpos.y-=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]->get_rid(),c->rect, p_modulate );
+
+ return get_char_size(p_char,p_next).width;
+}
+
+void Font::_bind_methods() {
+
+ ObjectTypeDB::bind_method(_MD("set_height","px"),&Font::set_height);
+ ObjectTypeDB::bind_method(_MD("get_height"),&Font::get_height);
+
+ ObjectTypeDB::bind_method(_MD("set_ascent","px"),&Font::set_ascent);
+ ObjectTypeDB::bind_method(_MD("get_ascent"),&Font::get_ascent);
+ ObjectTypeDB::bind_method(_MD("get_descent"),&Font::get_descent);
+
+ ObjectTypeDB::bind_method(_MD("add_kerning_pair","char_a","char_b","kerning"),&Font::add_kerning_pair);
+ ObjectTypeDB::bind_method(_MD("get_kerning_pair"),&Font::get_kerning_pair);
+
+ ObjectTypeDB::bind_method(_MD("add_texture","texture:Texture"),&Font::add_texture);
+ ObjectTypeDB::bind_method(_MD("add_char","character","texture","rect","align","advance"),&Font::add_char,DEFVAL(Point2()),DEFVAL(-1));
+
+ ObjectTypeDB::bind_method(_MD("get_char_size","char","next"),&Font::get_char_size,DEFVAL(0));
+ ObjectTypeDB::bind_method(_MD("get_string_size","string"),&Font::get_string_size);
+
+ ObjectTypeDB::bind_method(_MD("clear"),&Font::clear);
+
+ ObjectTypeDB::bind_method(_MD("draw","canvas_item","pos","string","modulate","clip_w"),&Font::draw,DEFVAL(Color(1,1,1)),DEFVAL(-1));
+ ObjectTypeDB::bind_method(_MD("draw_char","canvas_item","pos","char","next","modulate"),&Font::draw_char,DEFVAL(-1),DEFVAL(Color(1,1,1)));
+
+ ObjectTypeDB::bind_method(_MD("_set_chars"),&Font::_set_chars);
+ ObjectTypeDB::bind_method(_MD("_get_chars"),&Font::_get_chars);
+
+ ObjectTypeDB::bind_method(_MD("_set_kernings"),&Font::_set_kernings);
+ ObjectTypeDB::bind_method(_MD("_get_kernings"),&Font::_get_kernings);
+
+ ObjectTypeDB::bind_method(_MD("_set_textures"),&Font::_set_textures);
+ ObjectTypeDB::bind_method(_MD("_get_textures"),&Font::_get_textures);
+
+
+ ADD_PROPERTY( PropertyInfo( Variant::ARRAY, "textures", PROPERTY_HINT_NONE,"", PROPERTY_USAGE_NOEDITOR ), _SCS("_set_textures"), _SCS("_get_textures") );
+ ADD_PROPERTY( PropertyInfo( Variant::INT_ARRAY, "chars", PROPERTY_HINT_NONE,"", PROPERTY_USAGE_NOEDITOR ), _SCS("_set_chars"), _SCS("_get_chars") );
+ ADD_PROPERTY( PropertyInfo( Variant::INT_ARRAY, "kernings", PROPERTY_HINT_NONE,"", PROPERTY_USAGE_NOEDITOR ), _SCS("_set_kernings"), _SCS("_get_kernings") );
+
+ ADD_PROPERTY( PropertyInfo( Variant::REAL, "height", PROPERTY_HINT_RANGE,"-1024,1024,1" ), _SCS("set_height"), _SCS("get_height") );
+ ADD_PROPERTY( PropertyInfo( Variant::REAL, "ascent", PROPERTY_HINT_RANGE,"-1024,1024,1" ), _SCS("set_ascent"), _SCS("get_ascent") );
+
+}
+
+Font::Font() {
+
+ clear();
+
+
+}
+
+
+Font::~Font() {
+
+ clear();
+}
+
+
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-05 12:29:05 +0000