?? buildgraph.java
字號:
*/ case STYLE: if( !isContext(MARKER) && !isContext(FONT)) { errorAtLine( "STYLE should only appear in MARKER or FONT context"); return; } token = nextWord(); if( token == PLAIN ) { nobj = new NamedObject(PLAIN); } else if( token == BOLD ) { nobj = new NamedObject(BOLD); } else if( token == ITALIC ) { nobj = new NamedObject(PLAIN); } else if( token == TT_NUMBER ) { nobj = new NamedObject(new Integer((int)(nval+0.01)), STYLE); } else { errorAtLine( "STYLE should be followed an integer or Keyword"); return; } object.push(nobj); break;/*** Size of font or marker. Size should be followed by an integer*/ case SIZE: if( !isContext(MARKER) && !isContext(FONT)) { errorAtLine( "SIZE should only appear in MARKER or FONT context"); return; } token = nextWord(); if( token == TT_NUMBER ) { nobj = new NamedObject(new Integer((int)(nval+0.01)), SIZE); } else { errorAtLine("SIZE should be followed by an integer"); return; } object.push(nobj); break; /* ** Which contour levels are to get labels. */ case LLEVELS: if( !isContext(CONTOUR)) { errorAtLine( "LLEVELS should only appear in CONTOUR context"); return; } token = nextWord(); if( token == TT_NUMBER ) { nobj = new NamedObject(new Integer((int)(nval+0.01)), LLEVELS); } else { errorAtLine("LLEVELS should be followed by an integer"); return; } object.push(nobj); break;/*** Parse a color. Color should be followed by 3 integers in** the range 0-255*/ case COLOR: case BACKGROUND: int i; int rgb[]={-1,-1,-1}; for(i=0; i<3; i++) { int t = nextWord(); if(t != TT_NUMBER || nval <0 || nval > 255) { errorAtLine("Incorrect Color definition"); return; } rgb[i] = (int)(nval+0.001); } if(token == COLOR) { nobj = new NamedObject(new Color(rgb[0], rgb[1], rgb[2]), COLOR); object.push(nobj); } else { if( isContext(DATA) || isContext(CDATA) ) { ((Graph2D)graph).setDataBackground( new Color(rgb[0], rgb[1], rgb[2]) ); } else { ((Graph2D)graph).setGraphBackground( new Color(rgb[0], rgb[1], rgb[2]) ); } } break;/*** Name the current context or the string to be used as a label** or title. Name should be followed by a string*/ case NAME: token = nextWord(); if( token == STRING ) { nobj = new NamedObject(sval,NAME); } else { errorAtLine("NAME should be followed by a string"); return; } object.push(nobj); break; case FUNCTION: token = nextWord(); if( token == STRING ) { nobj = new NamedObject(sval,FUNCTION); } else { errorAtLine("FUNCTION should be followed by a string"); return; } object.push(nobj); break; case NUMBER: token = nextWord(); if( token == TT_NUMBER ) { nobj = new NamedObject( new Integer((int)(nval+0.01)), NUMBER); } else { errorAtLine("NUMBER should be followed by an integer"); return; } object.push(nobj); break; case XRANGE: case YRANGE: boolean error = false; double min = 0.0; double max = 0.0; int num = 0; int t = nextWord(); if( t == TT_NUMBER ) { num = (int)(nval+0.001); t = nextWord(); if( t == TT_NUMBER ) { min = nval; t = nextWord(); if( t == TT_NUMBER ) { max = nval; } else { error = true; } } else { error = true; } } else { error = true; } if(error) { errorAtLine( "Range limits must be followed by 3 numbers"); return; } if(min == max) { errorAtLine( "Range limits must not be the same"); return; } if(num <= 1) { errorAtLine( "Number of points must be greater than 1"); return; } if(min > max ) { double tmp = max; max = min; min = tmp; } if(token == XRANGE) { nobj = new NamedObject(new Integer(num),XNUMBER); object.push(nobj); nobj = new NamedObject(new Double(min),XMIN); object.push(nobj); nobj = new NamedObject(new Double(max),XMAX); object.push(nobj); } else { nobj = new NamedObject(new Integer(num),YNUMBER); object.push(nobj); nobj = new NamedObject(new Double(min),YMIN); object.push(nobj); nobj = new NamedObject(new Double(max),YMAX); object.push(nobj); } break; /*** unknown keyword!*/ case UNKNOWN: errorAtLine("Unknown keyword!!"); break;/*** begin a new group or context. The object to be built** should be the last thing pushed onto the object stack.** Move it to the build stack and push BEGIN onto the object** stack to act as a delimiter on the stack*/ case BEGIN: level++; build.push(object.pop()); object.push(new NamedObject(BEGIN)); break;/*** End of a group or context. Everything on the object stack** down to the BEGIN object relate to the current build object** Build the object and push this built object onto the** object stack.*/ case END: level--; build((NamedObject)(build.pop())); break;/*** Whatever it is push it onto the object stack.*/ default: object.push(new NamedObject(token)); break; } }/*** Finished - lets see if anything major was not defined*/ closeStream(); if(graph == null) { System.out.println("Graph never defined! Cannot build graph!"); return; } if(level != 0 ) { System.out.println("Mismatched Braces!! Will try and build graph."); }/*** Errors could have occured - but lets try and repaint and keep going*/ if( graph instanceof Graph2D ) { ((Graph2D)graph).repaint(); } else if( graph instanceof G2Dint ) { ((G2Dint)graph).repaint(); } else if( graph instanceof Contour ) { ((Contour)graph).repaint(); } else { System.out.println("Unknown graph type - totally confused!"); } } /************************** Protected Methods***********************/ /** * Check if the object is on the "to be built" stack. This way context can be * checked so potential errors flagged. * @param token is this the object we are currently building? * @return <i>true</i> if the token matches current object being built */ protected boolean isContext(int token) { int i; for(i=0; i<build.size(); i++) { if( ((NamedObject)(build.elementAt(i))).id == token ) return true; } return false; } /** * Based on the parsed object build something. * @param nobj The object to be built * @return <i>true</i> if the build was successful. */ protected boolean build(NamedObject nobj) { switch(nobj.id) { case FONT: return buildFont(); case MARKER: return buildMarker(); case TITLE: return buildTitle(); case LABEL: return buildLabel(); case DATA: case CDATA: return buildData(nobj.id); case AXIS: return buildAxis(); case GRID: return buildGrid(); case ZERO: return buildZero(); case G2DINT: case GRAPH2D: case CONTOUR: return buildGraph(nobj.id); default: errorAtLine("Incorrect keyword followed by braces"); return false; } } /** * Pop things off the object stack and build the graph * @param type Type of graph to build, Graph2D, G2Dint, Contour. * @return <i>true</i> if the build was successful */ protected boolean buildGraph(int type) { NamedObject nobj; Axis axis; String dname; if(type==CONTOUR) dname = "Contour"; else if(type==G2DINT) dname = "G2Dint"; else dname = "Graph"; while( true ) { nobj = (NamedObject)(object.pop()); debugMessage(dname,nobj.id); switch (nobj.id) { case AXIS: axis = (Axis)(nobj.getObject()); if(type == GRAPH2D) { ((Graph2D)graph).attachAxis(axis); } else { ((G2Dint)graph).attachAxis(axis); } break; case DATA: ((Graph2D)graph).attachDataSet( (DataSet)(nobj.getObject())); break; case ATTACH: axis = (Axis)(nobj.getObject()); String name = nobj.getName(); boolean attach = false; for(int i=0; i<datasets.size(); i++) { nobj = (NamedObject)(datasets.elementAt(i)); if( name.equals(nobj.getName())) { axis.attachDataSet((DataSet)(nobj.getObject())); attach = true; break; } } if(!attach) { errorAtLine("Data name not found for Attach keyword"); } break; case GRID_COLOR: ((Graph2D)graph).gridcolor = (Color)(nobj.getObject()); break; case GRID_OFF: ((Graph2D)graph).drawgrid = false; break; case GRID_ON: ((Graph2D)graph).drawgrid = true; break; case ZERO_COLOR: ((Graph2D)graph).zerocolor = (Color)(nobj.getObject()); break; case ZERO_OFF: ((Graph2D)graph).drawzero = false; break; case ZERO_ON: ((Graph2D)graph).drawzero = true; break; case MARKER: ((Graph2D)graph).setMarkers( (Markers)(nobj.getObject())); break; case TITLE: graphtitle = (TextLine)(nobj.getObject()); built.addElement(graphtitle); break; case LEFT: ((Graph2D)graph).borderLeft = ((Integer)(nobj.getObject())).intValue(); break; case RIGHT: ((Graph2D)graph).borderRight = ((Integer)(nobj.getObject())).intValue(); break; case TOP: ((Graph2D)graph).borderTop = ((Integer)(nobj.getObject())).intValue(); break; case BOTTOM: ((Graph2D)graph).borderBottom = ((Integer)(nobj.getObject())).intValue(); break; case SQUARE: ((Graph2D)graph).square = true; break; case BEGIN: built.addElement(graph); applet.showStatus("BuildGraph: Built Graph!!!"); return true; default: if( type == CONTOUR ) { if(!buildContour(nobj) ) {?? 快捷鍵說明
復制代碼
Ctrl + C
搜索代碼
Ctrl + F
全屏模式
F11
切換主題
Ctrl + Shift + D
顯示快捷鍵
?
增大字號
Ctrl + =
減小字號
Ctrl + -