POJ--2494 AcidText-优快云博客

本文介绍了一个使用Java实现的图片合成器程序。该程序可以读取多个图片文件和样式表文件，根据样式表中定义的位置和层级将不同的图片元素叠加在一起，最终生成一幅完整的图像。文章详细解释了核心类`picture`和`css`的功能，包括图片加载、样式解析及图片合成的逻辑。
摘要生成于 C知道，由 DeepSeek-R1 满血版支持，前往体验 >
import java.io.*;
import java.util.Scanner;
import java.util.TreeMap;
import java.util.Vector;

class picture{
	char[][] pic;
	int h;
	int w;
	String name;
	picture(int h,int w,TreeMap<String,picture> picTM,Vector<css> cssV){
		this.h=h;
		this.w=w;
		pic = new char[h][w];
		int[][] lay = new int[h][w];
		for(int i=0;i<h;i++){
			for(int j=0;j<w;j++){
				lay[i][j]=0;
				pic[i][j]='.';
			}
				
		}
		for(int i=0;i<cssV.size();i++){
			css c =cssV.elementAt(i);
			picture p = picTM.get(c.getPicFile());
			if(p!=null){
				char[][] pc =p.getCharArray();
				int startH=c.getTopLeftX(),startW=c.getTopLeftY(),H=p.getH(),W=p.getW(),layer=c.getLayer();
				for(int j=startH;j-startH<H&&j<h;j++){
					for(int k=startW;k-startW<W&&k<w;k++){
						char ch=pc[j-startH][k-startW];
						if(j>=0&&k>=0){
						if(ch!='.'){//||ch!=' '){
							if(layer>=lay[j][k]){
									pic[j][k]=ch;
									lay[j][k]=layer;
							}else{
								if(pic[j][k]=='.'){//&&pic[j][k]==' '){
									pic[j][k]=ch;
									lay[j][k]=layer;
								}
							}
						}
						}
					}
				}
			}
		}
	}
	picture(String name,int h,int w,Scanner cin){// throws Exception{
		//BufferedReader br = new BufferedReader(isr);
		this.h=h;
		this.w=w;
		this.name=name;
		pic = new char[h][w];
		for(int i=0;i<h;i++){
			pic[i]=cin.next().toCharArray();
		}
	}
	public void display(){
		for(int i=0;i<h;i++){
			for(int j=0;j<w;j++){
				if(pic[i][j]!='.')
					System.out.print(pic[i][j]);
				else
					System.out.print(" ");
			}
			System.out.println();
		}
			
	}
	public int getH(){
		return this.h;
	}
	public int getW(){
		return this.w;
	}
	public char[][] getCharArray(){
		return this.pic;
	}
}


class css{
	int posX;
	int posY;
	int layer;
	String name;
	String picFile;
	boolean posAbsolute;
	String cssFile;
	int topLeftX;
	int topLeftY;
	int maxX;
	int maxY;
	css(Scanner cin){//throws Exception{
	//	InputStreamReader irs = new InputStreamReader(System.in);
		//FileOutputStream fos = new FileOutputStream("D:\\css.txt");
		//DataOutputStream dos = new DataOutputStream(fos);
		int times=0;
		String str="";
		String newLine;
		char ch=' ';
	//	System.out.println("*");
		while(times<7){
			newLine=cin.nextLine();
		//	System.out.println(newLine+":"+times);
			for(int i=0;i<newLine.length();i++){
				ch =newLine.charAt(i);
				//dos.writeChar(chi);
			//	System.out.println(chi+":"+ch);
				switch(ch){
				case '#':break;
				case '{':name=str;str="";break;
				case '}':break;
				case '\n':break;
				case '\r':break;
				case '\t':break;
				case ' ':break;
				case ':':str="";break;
				case ';':
		//			System.out.println(str+":"+times);
					switch(times){
					case 0:break;
					case 1:
						if(str.length()>2){
							str=str.substring(0,str.length()-2);
							if(isNumber(str))
								posX=Integer.parseInt(str);
						}
						break;
					case 2:
						if(str.length()>2){
							str=str.substring(0,str.length()-2);
							if(isNumber(str))
								posY=Integer.parseInt(str);
						}
						break;
					case 3:	
						if(str.equals("absolute")){
							posAbsolute=true;
						}
						else{
							posAbsolute=false;
							int beginIndex=0;
							while(beginIndex<str.length()&&str.charAt(beginIndex)!='='）beginIndex++;
							beginIndex++;
							if(beginIndex<str.length())
								cssFile=str.substring(beginIndex);
						}
						break;
					case 4:picFile=str;break;
					case 5:if(isNumber(str))layer=Integer.parseInt(str);break;
					default:
					}
					str="";
					break;
				default:str+=ch;
				}
			}
			times++;
		}
		//dos.close();
	}
	boolean isNumber(String str){
		for(int i=0;i<str.length();i++){
			char ch=str.charAt(i);
			if(i==0){
				if((ch<'0'||ch>'9')&&ch!='-')
					return false;
			}
			else{
				if(ch<'0'||ch>'9')
					return false;
			}
		}
		return true;
	}
	public boolean isAbsolute(){
		return this.posAbsolute;
	}
	public int getTopLeftX(){
		return topLeftX;
	}
	public int getTopLeftY(){
		return topLeftY;
	}
	public String getName(){
		return this.name ;
	}
	public String getPicFile(){
		return this.picFile;
	}
	public String getCssFile(){
		return this.cssFile;
	}

	public int getLayer(){
		return this.layer;
	}
   	public boolean calculateTopLeftXY(TreeMap<String,css> cssTM){
		if(posAbsolute){
			topLeftX=posY;
			topLeftY=posX;
		}
		else{
			if(cssFile!=null){
				css RelativeCss = cssTM.get(cssFile);
				if(RelativeCss.posAbsolute){
					topLeftX=posY+RelativeCss.getTopLeftX();
					topLeftY=posX+RelativeCss.getTopLeftY();
					posAbsolute=true;
				}
			}
		}
		return posAbsolute;
		
	}
}

public class Main {
	public static int test;
	
	//public static int maxX;
	//public static int maxY;
	
	public static picture finalPic;
	
	public static void run(Scanner cin){// throws Exception{
		//Scanner cin = new Scanner(System.in);
		//InputStreamReader isr = new InputStreamReader(System.in);
		int picN,cssN,maxX=0,maxY=0;
		picN=cin.nextInt();
		TreeMap<String,picture> picTM = new TreeMap<String,picture>();
		for(int i=0;i<picN;i++){
			String name= cin.next();
			int h = cin.nextInt();
			int w = cin.nextInt();
			picture pic = new picture(name,h,w,cin);
			picTM.put(name, pic);
		}
		cssN = cin.nextInt();
		TreeMap<String,css> cssTM = new TreeMap<String,css>();
		Vector<css> cssV = new Vector<css>();
		Vector<css> cssA = new Vector<css>();
		Vector<css> cssR = new Vector<css>();
		cin.nextLine();
		for(int i=0;i<cssN;i++){
			css cssFile = new css(cin);
			cssTM.put(cssFile.getName(), cssFile);
			cssV.add(cssFile);
			if(cssFile.isAbsolute())
				cssA.add(cssFile);
			else
				cssR.add(cssFile);
		}
		for(int i=0;i<cssA.size();i++){
			css c =cssA.elementAt(i);
			c.calculateTopLeftXY(cssTM);
			picture pic = picTM.get(c.getPicFile());
			if(maxX<pic.getH()+c.getTopLeftX())
				maxX=pic.getH()+c.getTopLeftX();
			if(maxY<pic.getW()+c.getTopLeftY())
				maxY=pic.getW()+c.getTopLeftY();
		}
		for(int i=0;i<cssR.size();i++){
			css c =cssR.elementAt(i);
			c.calculateTopLeftXY(cssTM);
			picture pic = picTM.get(c.getPicFile());
			if(maxX<pic.getH()+c.getTopLeftX())
				maxX=pic.getH()+c.getTopLeftX();
			if(maxY<pic.getW()+c.getTopLeftY())
				maxY=pic.getW()+c.getTopLeftY();
		}
		for(int i=0;i<cssV.size();i++){
			css c = cssV.elementAt(i);
		//	c.calculateTopLeftXY(cssTM);
			//System.out.println(c.getName()+":"+c.getTopLeftX()+" "+c.getTopLeftY()+" "+c.getCssFile()+" "+c.getPicFile());
		}
		finalPic = new picture(maxX>1000?1000:maxX,maxY>1000?1000:maxY,picTM,cssV);
		//finalPic.display();
		
	}
	public static void main(String[] args){		Scanner cin = new Scanner(System.in);
		int test = cin.nextInt();
		for(int i=0;i<test;i++){
			//run(cin,isr);
			run(cin);
			System.out.println("Scenario #"+(i+1)+":");
			finalPic.display();
			System.out.println();
		}
	}
}