myeditorkit.java

JGraph扩展应用。自定义Renderer,自定义视图View实现自定义工作流控件

/**
 * 
 */
package flow.graph.gui.syntax;

import java.awt.*;   
import java.awt.event.*;   
import java.lang.StringBuffer;   
import javax.swing.*;   
import javax.swing.event.*;   
import javax.swing.text.*;   
  
public class MyEditorKit extends StyledEditorKit{
	public MyEditorKit(){
		super();
	}

	public ViewFactory getViewFactory(){   
		return new MyViewFactory();
	}
}

class MyViewFactory implements ViewFactory{
	public MyViewFactory(){
	}

	public View create(Element element){
		return new MyEditorView(element);
	}
}

class MyEditorView extends PlainView{
	public MyEditorView(Element element){
		super(element);
	}
  
	protected int drawUnselectedText(Graphics g, int x, int y, int p0, int p1) throws BadLocationException{
		Document doc=getDocument();
		Segment segment=new Segment(), token=new Segment();
		int index=0, count=p1-p0;
		char c='\u0000';

		doc.getText(p0, count, segment);
		for(int i=0; i<count; i++){
			//System.out.println("ccc="+c);
			if(Character.isLetter(c=segment.array[segment.offset+i])||c=='_'){     //   :)
				//System.out.println("1-------");
				index=i;
				while(++i<count&&(Character.isLetter((c=segment.array[segment.offset+i]))||c=='_'||(c>='0'&&c<='9')));
				doc.getText(p0+index, (i--)-index, token);
				if(KeyWord.isKeyWord(token)){
					//g.setFont(KEYWORDFONT);
					g.setColor(KEYWORDCOLOR);
				}else{
					int len = KeyWord.isOtherKeyWord(token);
					if(len > 0){
						g.setColor(KEYWORDCOLOR);
					}
					else{
						//g.setFont(TEXTFONT);
						g.setColor(TEXTCOLOR);
					}
				}
				x=Utilities.drawTabbedText(token, x, y, g, this, p0+index);
				continue;
			}else if(c>='0'&&c<='9'){
				//System.out.println("2-------");
				index=i;
				while(++i<count&&(c=segment.array[segment.offset+i])>='0'&&c<='9');
				doc.getText(p0+index, (i--)-index, token);
				g.setColor(NUMCOLOR);
				x=Utilities.drawTabbedText(token, x, y, g, this, p0+index);
				continue;
			}else if(c == '-'){
				//System.out.println("3-------");
				index=i;
				
				if((i+1)<count&&segment.array[segment.offset+(i+1)]=='-'){
					doc.getText(p0+index,   count-index,   token);
					//g.setFont(COMMENTFONT);
					g.setColor(COMMENTCOLOR);
					x=Utilities.drawTabbedText(token, x, y, g, this, p0+index);
					break;
				}
				doc.getText(p0+index, 1, token);
				//g.setFont(TEXTFONT);
				g.setColor(TEXTCOLOR);
				x=Utilities.drawTabbedText(token, x, y, g, this, p0+index);
				//i--;
				continue;
			}else if(c=='/'){
				//System.out.println("4-------");
				index=i;
				if((i+1)<count&&segment.array[segment.offset+(i+1)]=='/'){
					c = segment.array[segment.offset+(i+1)];
					//System.out.println("4.1.......");
					doc.getText(p0+index,   count-index,   token);
					//g.setFont(COMMENTFONT);
					g.setColor(COMMENTCOLOR);
					x=Utilities.drawTabbedText(token, x, y, g, this, p0+index);
					break;
				}
				else if((i+1)<count&&segment.array[segment.offset+(i+1)]=='*'){
					c = segment.array[segment.offset+(i+1)];
					//System.out.println("4.2.......");
					doc.getText(p0+index,   count-index,   token);
					//g.setFont(COMMENTFONT);
					g.setColor(COMMENTCOLOR);
					x=Utilities.drawTabbedText(token, x, y, g, this, p0+index);
					break;
				}
				else{
					c = segment.array[segment.offset+(i+1)];
					//System.out.println("4.3........");
					doc.getText(p0+index,   count-index,   token);
					g.setColor(TEXTCOLOR);
					x=Utilities.drawTabbedText(token, x, y, g, this, p0+index);
					break;
				}
				/*
				doc.getText(p0+index, 1, token);
				//g.setFont(TEXTFONT);
				g.setColor(TEXTCOLOR);
				x=Utilities.drawTabbedText(token, x, y, g, this, p0+index);
				//i--;
				continue;*/
			}else   if(c=='\''||c=='\"'){
				//System.out.println("5-------");
				index=i;
				char   ch='\u0000';
				while(++i<count){
					if((ch=segment.array[segment.offset+i])=='\\'){
						i++;
						continue;
					}else if(ch==c) break;
				}
				if(i>=count) i=count-1;
				doc.getText(p0+index, i-index+1, token);
				//g.setFont(STRINGFONT);
				g.setColor(STRINGCOLOR);
				x=Utilities.drawTabbedText(token, x, y, g, this, p0+index);
				continue;
			}
			else{
				//System.out.println("6-------");
				index=i;
				while(++i<count&&!Character.isLetter((c=segment.array[segment.offset+i]))&&c!='_'&&c!='/'&&c!='\''&&c!='\"'&&c==' '&&(c<'0'||c>'9'));
				doc.getText(p0+index, (i--)-index, token);
				//g.setFont(TEXTFONT);
				g.setColor(TEXTCOLOR);
				x=Utilities.drawTabbedText(token, x, y, g, this, p0+index);
			}
		}
		return x;
	}

	protected int drawSelectedText(Graphics g, int x, int y, int p0, int p1) throws   BadLocationException{
		//g.setFont(TEXTFONT);
		//g.setColor(TEXTCOLOR);
		return super.drawSelectedText(g, x, y, p0, p1);
	}
  
	public static Font TEXTFONT=new Font("宋体", Font.PLAIN, 12);
	public static Color TEXTCOLOR=Color.black;
	public static Font NUMFONT=new Font("宋体", Font.PLAIN, 12);
	public static Color NUMCOLOR=Color.red;
	public static Font KEYWORDFONT=new Font(TEXTFONT.getFontName(), Font.BOLD, TEXTFONT.getSize());
	public static Color KEYWORDCOLOR=Color.blue;//new Color(0, 0, 128);
	public static Font COMMENTFONT=TEXTFONT;
	//public static Color COMMENTCOLOR=new Color(192, 192, 192);
	public static Color COMMENTCOLOR=new Color(71, 179, 40);
	public static Font STRINGFONT=TEXTFONT;
	public static Color STRINGCOLOR=Color.GRAY;//new Color(255, 0, 0);
}	

class KeyWord{
	public KeyWord(){
	}

	public static boolean isKeyWord(Segment seg){
		boolean isKey=false;
		for(int i=0; !isKey&&i<KEYWORDS.length; i++){
			if(seg.count==KEYWORDS[i].length()){
				isKey=true;
				for(int j=0; isKey&&j<seg.count; j++)
					if(seg.array[seg.offset+j]!=KEYWORDS[i].charAt(j))
						isKey=false;
				
			}
		}
		return isKey;
	}
	public static int isOtherKeyWord(Segment seg){
		for(int i=0; i<KEYWORDS1.length; i++){
			if(KEYWORDS1[i].startsWith(seg.toString())){
				return KEYWORDS1[i].length()-1;
			}
		}
		return 0;
	}

	public static final String[] KEYWORDS={
		"if", "then", "else", "end", "elseif",
		"while", "for",
		"true", "false", "return", "local", "break", "function"
	};
	public static final String[] KEYWORDS1={
		"regexp(", "gettimeout(", "exit(", "shortmsg.text)",
		"shortmsg.serviceid)", "shortmsg.date)", "shortmsg.port)", "shortmsg.mobile)", "print("
	};
}