Svg_parser::parser_path_d(String path_d,Matrix* mtx){
std::list<std::list<Vertice*> > k;
std::list<Vertice*> k1;
+ std::vector<String> tokens=get_tokens_path(path_d);
+ String command="M"; //the current command
float ax,ay,tgx,tgy,tgx2,tgy2;//each method
- float actual_x=0,actual_y=0;//for relative methods;
+ ax=ay=0;
+ float actual_x=0,actual_y=0; //in svg coordinate space
+ float old_x=0,old_y=0; //needed in rare cases
loop=false;
- unsigned int i;
- std::vector<String> tokens=get_tokens_path(path_d);
- for(i=0;i<tokens.size();i++){
- if(tokens.at(i).compare("M")==0){//absolute move to
+
+ for(unsigned int i=0;i<tokens.size();i++){
+ //if the token is a command, change the current command
+ if(tokens.at(i).compare("M")==0 || tokens.at(i).compare("m")==0 || tokens.at(i).compare("L")==0 || tokens.at(i).compare("l")==0 || tokens.at(i).compare("H")==0 || tokens.at(i).compare("h")==0 || tokens.at(i).compare("V")==0 || tokens.at(i).compare("v")==0 || tokens.at(i).compare("C")==0 || tokens.at(i).compare("c")==0 || tokens.at(i).compare("S")==0 || tokens.at(i).compare("s")==0 || tokens.at(i).compare("Q")==0 || tokens.at(i).compare("q")==0 || tokens.at(i).compare("T")==0 || tokens.at(i).compare("t")==0 || tokens.at(i).compare("A")==0 || tokens.at(i).compare("a")==0 || tokens.at(i).compare("z")==0) {
+ command=tokens.at(i);
+ i++;
+ }
+
+ old_x=actual_x;
+ old_y=actual_y;
+ //if command is absolute, set actual_x/y to zero
+ if(command.compare("M")==0 || command.compare("L")==0 || command.compare("C")==0 || command.compare("S")==0 || command.compare("Q")==0 || command.compare("T")==0 || command.compare("A")==0 || command.compare("H")==0 || command.compare("V")==0) {
+ actual_x=0;
+ actual_y=0;
+ }
+
+ //now parse the commands
+ if(command.compare("M")==0 || command.compare("m")==0){ //move to
if(!k1.empty())
k.push_front(k1);
k1.clear();
//read
- i++; ax=atof(tokens.at(i).data());
+ actual_x+=atof(tokens.at(i).data());
i++; if(tokens.at(i).compare(",")==0) i++;
- ay=atof(tokens.at(i).data());
- actual_x=ax;
- actual_y=ay;
+ actual_y+=atof(tokens.at(i).data());
+
+ ax=actual_x;
+ ay=actual_y;
//operate and save
if(mtx) transformPoint2D(mtx,&ax,&ay);
coor2vect(&ax,&ay);
k1.push_back(newVertice (ax,ay)); //first element
setSplit(k1.back(),TRUE);
- }else if(tokens.at(i).compare("C")==0){ //absolute curve
+ //"If a moveto is followed by multiple pairs of coordinates,
+ // the subsequent pairs are treated as implicit lineto commands."
+ if (command.compare("M")==0)
+ command="L";
+ else
+ command="l";
+ }else if(command.compare("C")==0 || command.compare("c")==0){ //curve
//tg2
- i++; tgx2=atof(tokens.at(i).data());
+ tgx2=actual_x+atof(tokens.at(i).data());
i++; if(tokens.at(i).compare(",")==0) i++;
- tgy2=atof(tokens.at(i).data());
+ tgy2=actual_y+atof(tokens.at(i).data());
//tg1
- i++; tgx=atof(tokens.at(i).data());
+ i++; tgx=actual_x+atof(tokens.at(i).data());
i++; if(tokens.at(i).compare(",")==0) i++;
- tgy=atof(tokens.at(i).data());
+ tgy=actual_y+atof(tokens.at(i).data());
//point
- i++; ax=atof(tokens.at(i).data());
+ i++; actual_x+=atof(tokens.at(i).data());
i++; if(tokens.at(i).compare(",")==0) i++;
- ay=atof(tokens.at(i).data());
- actual_x=ax;
- actual_y=ay;
+ actual_y+=atof(tokens.at(i).data());
+
+ ax=actual_x;
+ ay=actual_y;
//mtx
if(mtx){
transformPoint2D(mtx,&tgx2,&tgy2);
setTg1(k1.back(),k1.back()->x,k1.back()->y,tgx,tgy);
setSplit(k1.back(),TRUE);
}
- }else if(tokens.at(i).compare("Q")==0){ //absolute quadractic curve
+ }else if(command.compare("Q")==0 || command.compare("q")==0){ //quadractic curve
//tg1 and tg2
- i++; tgx=ax=atof(tokens.at(i).data());
+ tgx=actual_x+atof(tokens.at(i).data());
i++; if(tokens.at(i).compare(",")==0) i++;
- tgy=ay=atof(tokens.at(i).data());
+ tgy=actual_y+atof(tokens.at(i).data());
//point
- i++; ax=atof(tokens.at(i).data());
+ i++; actual_x+=atof(tokens.at(i).data());
i++; if(tokens.at(i).compare(",")==0) i++;
- ay=atof(tokens.at(i).data());
- actual_x=ax;
- actual_y=ay;
+ actual_y+=atof(tokens.at(i).data());
+
+ ax=actual_x;
+ ay=actual_y;
//mtx
if(mtx){
transformPoint2D(mtx,&ax,&ay);
setSplit(k1.back(),FALSE);
k1.push_back(newVertice (ax,ay));
setTg1(k1.back(),k1.back()->x,k1.back()->y,tgx,tgy);
- }else if(tokens.at(i).compare("L")==0){ //absolute line to
+ }else if(command.compare("L")==0 || command.compare("l")==0){ //line to
//point
- i++; ax=atof(tokens.at(i).data());
+ actual_x+=atof(tokens.at(i).data());
i++; if(tokens.at(i).compare(",")==0) i++;
- ay=atof(tokens.at(i).data());
- actual_x=ax;
- actual_y=ay;
- //mtx
- if(mtx) transformPoint2D(mtx,&ax,&ay);
- //adjust
- coor2vect(&ax,&ay);
- //save
- setTg2(k1.back(),k1.back()->x,k1.back()->y,k1.back()->x,k1.back()->y);
- if(isFirst(k1.front(),ax,ay)){
- setTg1(k1.front(),k1.front()->x,k1.front()->y,k1.front()->x,k1.front()->y);
- }else{
- k1.push_back(newVertice(ax,ay));
- setTg1(k1.back(),k1.back()->x,k1.back()->y,k1.back()->x,k1.back()->y);
- }
- }else if(tokens.at(i).compare("l")==0){//relative line to
- //point read
- i++; ax=atof(tokens.at(i).data());
- i++; if(tokens.at(i).compare(",")==0) i++;
- ay=atof(tokens.at(i).data());
- //relative
- ax=actual_x+ax;
- ay=actual_y+ay;
- actual_x=ax;
- actual_y=ay;
- //mtx
- if(mtx) transformPoint2D(mtx,&ax,&ay);
- //adjust
- coor2vect(&ax,&ay);
- //save
- setTg2(k1.back(),k1.back()->x,k1.back()->y,k1.back()->x,k1.back()->y);
- if(isFirst(k1.front(),ax,ay)){
- setTg1(k1.front(),k1.front()->x,k1.front()->y,k1.front()->x,k1.front()->y);
- }else{
- k1.push_back(newVertice(ax,ay));
- setTg1(k1.back(),k1.back()->x,k1.back()->y,k1.back()->x,k1.back()->y);
- }
- }else if(tokens.at(i).compare("H")==0){//absolute horizontal move
- //the same that L but only Horizontal movement
- //point
- i++; ax=atof(tokens.at(i).data());
- ay=actual_y;
- actual_x=ax;
- actual_y=ay;
- //mtx
- if(mtx) transformPoint2D(mtx,&ax,&ay);
- //adjust
- coor2vect(&ax,&ay);
- //save
- setTg2(k1.back(),k1.back()->x,k1.back()->y,k1.back()->x,k1.back()->y);
- if(isFirst(k1.front(),ax,ay)){
- setTg1(k1.front(),k1.front()->x,k1.front()->y,k1.front()->x,k1.front()->y);
- }else{
- k1.push_back(newVertice(ax,ay));
- setTg1(k1.back(),k1.back()->x,k1.back()->y,k1.back()->x,k1.back()->y);
- }
- }else if(tokens.at(i).compare("h")==0){//horizontal relative
- i++; ax=atof(tokens.at(i).data());
- ax=actual_x+ax;
+ actual_y+=atof(tokens.at(i).data());
+
+ ax=actual_x;
ay=actual_y;
- actual_x=ax;
- actual_y=ay;
//mtx
if(mtx) transformPoint2D(mtx,&ax,&ay);
//adjust
k1.push_back(newVertice(ax,ay));
setTg1(k1.back(),k1.back()->x,k1.back()->y,k1.back()->x,k1.back()->y);
}
- }else if(tokens.at(i).compare("V")==0){//vertical absolute
+ }else if(command.compare("H")==0 || command.compare("h")==0){// horizontal move
+ //the same that L but only Horizontal movement
//point
- i++; ay=atof(tokens.at(i).data());
+ actual_x+=atof(tokens.at(i).data());
+
ax=actual_x;
- actual_x=ax;
- actual_y=ay;
+ ay=old_y;
//mtx
if(mtx) transformPoint2D(mtx,&ax,&ay);
//adjust
k1.push_back(newVertice(ax,ay));
setTg1(k1.back(),k1.back()->x,k1.back()->y,k1.back()->x,k1.back()->y);
}
- }else if(tokens.at(i).compare("v")==0){//relative
+ }else if(command.compare("V")==0 || command.compare("v")==0){//vertical
//point
- i++; ay=atof(tokens.at(i).data());
- ax=actual_x;
- ay=actual_y+ay;
- actual_x=ax;
- actual_y=ay;
+ actual_y+=atof(tokens.at(i).data());
+
+ ax=old_x;
+ ay=actual_y;
//mtx
if(mtx) transformPoint2D(mtx,&ax,&ay);
//adjust
k1.push_back(newVertice(ax,ay));
setTg1(k1.back(),k1.back()->x,k1.back()->y,k1.back()->x,k1.back()->y);
}
- }else if(tokens.at(i).compare("T")==0){// I don't know what does it
- }else if(tokens.at(i).compare("A")==0){//elliptic arc
+ }else if(command.compare("T")==0 || command.compare("t")==0){// I don't know what does it
+ actual_x+=atof(tokens.at(i).data());
+ i++; if(tokens.at(i).compare(",")==0) i++;
+ actual_y+=atof(tokens.at(i).data());
+ }else if(command.compare("A")==0 || command.compare("a")==0){//elliptic arc
//isn't complete support, is only for circles
float angle;
bool sweep,large;
//radio
- i++; radio_x=atof(tokens.at(i).data());
+ radio_x=atof(tokens.at(i).data());
i++; if(tokens.at(i).compare(",")==0) i++;
radio_y=atof(tokens.at(i).data());
//angle
i++; large=atoi(tokens.at(i).data());
i++; sweep=atoi(tokens.at(i).data());
//point
- i++; ax=atof(tokens.at(i).data());
+ i++; actual_x+=atof(tokens.at(i).data());
i++; if(tokens.at(i).compare(",")==0) i++;
- ay=atof(tokens.at(i).data());
+ actual_y+=atof(tokens.at(i).data());
//how to draw?
if(!large && !sweep){
//points
- tgx2 = actual_x + radio_x*0.5;
- tgy2 = actual_y ;
- tgx = ax;
- tgy = ay + radio_y*0.5;
- actual_x=ax;
- actual_y=ay;
+ tgx2 = old_x + radio_x*0.5;
+ tgy2 = old_y ;
+ tgx = actual_x;
+ tgy = actual_y + radio_y*0.5;
+
+ ax=actual_x;
+ ay=actual_y;
//transformations
if(mtx){
transformPoint2D(mtx,&tgx2,&tgy2);
}
}else if(!large && sweep){
//points
- tgx2 = actual_x;
- tgy2 = actual_y + radio_y*0.5;
- tgx = ax + radio_x*0.5;
- tgy = ay ;
- actual_x=ax;
- actual_y=ay;
+ tgx2 = old_x;
+ tgy2 = old_y + radio_y*0.5;
+ tgx = actual_x + radio_x*0.5;
+ tgy = actual_y ;
+
+ ax=actual_x;
+ ay=actual_y;
//transformations
if(mtx){
transformPoint2D(mtx,&tgx2,&tgy2);
}else if( large && !sweep){//rare
//this need more than one vertex
}else if( large && sweep){//circles in inkscape are made with this kind of arc
- if(actual_y==ay){//circles
- //intermediate point
- int sense=1;
- if(actual_x>ax) sense =-1;
- float in_x,in_y,in_tgx1,in_tgy1,in_tgx2,in_tgy2;
- in_x = (actual_x+ax)/2;
- in_y = actual_y - sense*radio_y;
- in_tgx1 = in_x - sense*(radio_x*0.5);
- in_tgx2 = in_x + sense*(radio_x*0.5);
- in_tgy1 = in_y;
- in_tgy2 = in_y;
- //start/end points
- tgx2=actual_x;
- tgy2=ay - sense*(radio_y*0.5);
- tgx =ax;
- tgy =ay - sense*(radio_y*0.5);
-
- actual_x=ax;
- actual_y=ay;
- //transformations
- if(mtx){
- transformPoint2D(mtx,&tgx2,&tgy2);
- transformPoint2D(mtx,&tgx ,&tgy );
- transformPoint2D(mtx,&ax,&ay);
-
- transformPoint2D(mtx,&in_tgx2,&in_tgy2);
- transformPoint2D(mtx,&in_tgx1,&in_tgy1);
- transformPoint2D(mtx,&in_x,&in_y);
- }
- //adjust
- coor2vect(&tgx2 , &tgy2);
- coor2vect(&ax , &ay );
- coor2vect(&tgx , &tgy );
-
- coor2vect(&in_tgx2 , &in_tgy2);
- coor2vect(&in_tgx1 , &in_tgy1);
- coor2vect(&in_x , &in_y );
-
- //save the last tg2
- setTg2(k1.back(),k1.back()->x,k1.back()->y,tgx2,tgy2);
- //save the intermediate point
- k1.push_back(newVertice (in_x,in_y));
- setTg1(k1.back(),k1.back()->x,k1.back()->y, in_tgx1 , in_tgy1);
- setTg2(k1.back(),k1.back()->x,k1.back()->y, in_tgx2 , in_tgy2);
- setSplit(k1.back(),TRUE); //this could be changed
- //save the new point
- if(isFirst(k1.front(),ax,ay)){
- setTg1(k1.front(),k1.front()->x,k1.front()->y,tgx,tgy);
- }else{
- k1.push_back(newVertice (ax,ay));
- setTg1(k1.back(),k1.back()->x,k1.back()->y,tgx,tgy);
- setSplit(k1.back(),TRUE);
- }
+ //intermediate point
+ int sense=1;
+ if(old_x>actual_x) sense =-1;
+ float in_x,in_y,in_tgx1,in_tgy1,in_tgx2,in_tgy2;
+ in_x = (old_x+actual_x)/2;
+ in_y = old_y - sense*radio_y;
+ in_tgx1 = in_x - sense*(radio_x*0.5);
+ in_tgx2 = in_x + sense*(radio_x*0.5);
+ in_tgy1 = in_y;
+ in_tgy2 = in_y;
+ //start/end points
+ tgx2=old_x;
+ tgy2=actual_y - sense*(radio_y*0.5);
+ tgx =actual_x;
+ tgy =actual_y - sense*(radio_y*0.5);
+
+ ax=actual_x;
+ ay=actual_y;
+ //transformations
+ if(mtx){
+ transformPoint2D(mtx,&tgx2,&tgy2);
+ transformPoint2D(mtx,&tgx ,&tgy );
+ transformPoint2D(mtx,&ax,&ay);
+
+ transformPoint2D(mtx,&in_tgx2,&in_tgy2);
+ transformPoint2D(mtx,&in_tgx1,&in_tgy1);
+ transformPoint2D(mtx,&in_x,&in_y);
+ }
+ //adjust
+ coor2vect(&tgx2 , &tgy2);
+ coor2vect(&ax , &ay );
+ coor2vect(&tgx , &tgy );
+
+ coor2vect(&in_tgx2 , &in_tgy2);
+ coor2vect(&in_tgx1 , &in_tgy1);
+ coor2vect(&in_x , &in_y );
+
+ //save the last tg2
+ setTg2(k1.back(),k1.back()->x,k1.back()->y,tgx2,tgy2);
+ //save the intermediate point
+ k1.push_back(newVertice (in_x,in_y));
+ setTg1(k1.back(),k1.back()->x,k1.back()->y, in_tgx1 , in_tgy1);
+ setTg2(k1.back(),k1.back()->x,k1.back()->y, in_tgx2 , in_tgy2);
+ setSplit(k1.back(),TRUE); //this could be changed
+ //save the new point
+ if(isFirst(k1.front(),ax,ay)){
+ setTg1(k1.front(),k1.front()->x,k1.front()->y,tgx,tgy);
+ }else{
+ k1.push_back(newVertice (ax,ay));
+ setTg1(k1.back(),k1.back()->x,k1.back()->y,tgx,tgy);
+ setSplit(k1.back(),TRUE);
}
}
- }else if(tokens.at(i).compare("z")==0){
+ }else if(command.compare("z")==0){
loop=true;
}else{
- std::cout<<"don't supported: "<<tokens.at(i)<<std::endl;
+ std::cout<<"unsupported path token: "<<tokens.at(i)<<std::endl;
}
}
if(!k1.empty())
projects / synfig.git / commitdiff