diff options
Diffstat (limited to 'buffer.cpp')
| -rw-r--r-- | buffer.cpp | 34 |
1 files changed, 32 insertions, 2 deletions
@@ -16,6 +16,8 @@ Buffer::Buffer(Manager *manager) :manager(manager){} void Buffer::receive(const Command &cmd){ + //TODO: optimise the renewLayout's in this function + if(cmd[0]=="open_file"){ const string &fname=cmd[1]; filename=fname; @@ -33,17 +35,37 @@ void Buffer::receive(const Command &cmd){ tb.insert(cursor.line,cursor.x,cmd[1][0]); cursor.x++; } - //TODO: optimise this renewLayout(screen[0].line,screen[0].part,lastWidth,lastHeight); } else if(cmd[0]=="insert_newline"){ tb.insert(cursor.line,cursor.x,'\n'); cursor.x=0; cursor.line++; - //TODO: optimise this renewLayout(screen[0].line,screen[0].part,lastWidth,lastHeight); + } else if(cmd[0]=="delete_backward"){ + if(cursor.x==0&&cursor.line==0){ + bel(); + } else { + if(cursor.x>0){ + cursor.x--; + tb.erase(cursor.line,cursor.x); + } else { + cursor.line--; + cursor.x=tb.lineLen(cursor.line); + tb.erase(cursor.line,cursor.x); + } + renewLayout(screen[0].line,screen[0].part,lastWidth,lastHeight); + } + } else if(cmd[0]=="delete_forward"){ + if(cursor.line==tb.numLines()-1&&cursor.x==tb.lineLen(cursor.line)){ + bel(); + } else { + tb.erase(cursor.line,cursor.x); + renewLayout(screen[0].line,screen[0].part,lastWidth,lastHeight); + } } else { THROW("Unknown command"); } + cerr<<"New cursor is (line="<<cursor.line<<", x="<<cursor.x<<")"<<endl; } static string showChar(char c){ @@ -234,6 +256,14 @@ void Buffer::show(i64 atx,i64 aty,i64 width,i64 height){ } screenX++; } + + //Maybe the cursor should be positioned AFTER this line + if(curScreenX==-1&&screen[y].line==cursor.line&&cursor.x==tb.lineLen(cursor.line)&& + (y==(i64)screen.size()-1||screen[y+1].line>cursor.line)){ + if(screenX==atx+width)curScreenX=screenX-1; + else curScreenX=screenX; + curScreenY=aty+y; + } } setstyle(&textStyle); if(y<height)fillrect(atx,aty+y,width,height-y,' '); |