Tinyfool的开发日记

程序是用BCB写的，用一个Image的Canvas来作为图文编辑器的基础。
代码和EXE下载
edittor.zip
截图如下：

程序的核心是下面的两个文章，里面包括了5个类CEditor，CSuperEditor，CUnit，CCharUnit，CPicUnit。
editor.h

#ifndef _EDITOR_H

#define _EDITOR_H

#include 

#include 

#include 



using namespace std;



class CUnit

{

public:

    virtual GetWidth()=0;

    virtual GetHeight()=0;

    virtual void Draw(int x,int y)=0;

    TCanvas* Canvas;    

};



class CEditor

{

public:

    virtual void Paint()=0;

};



class CSuperEditor:CEditor

{

public:

    virtual void Paint();

    void AddUnit(CUnit* Unit);

    TCanvas* Canvas;

private:

    vector Units;

};





class CCharUnit:CUnit

{

public:

    virtual GetWidth();

    virtual GetHeight();

    virtual void Draw(int x,int y);

    void SetWord(unsigned char word);

    unsigned char GetWord();



	CCharUnit()

    {

        Canvas=NULL;

    }

  

private:

    unsigned char Word;

};



class CPicUnit:CUnit

{

public:

    virtual GetWidth();

    virtual GetHeight();

    virtual void Draw(int x,int y);    



    int GetWord();

    TImageList *ImageList;



    CPicUnit()

    {

        ImageList=NULL;

        Canvas=NULL;

    }

    void SetIndex(int index);



private:

    int Index;

};



#endif

editor.cpp

#include "Editor.h"



void CSuperEditor::Paint()

{

    int w=0;

    if(Canvas==NULL)return;

    Canvas->Pen->Color=clBlue;

    vector::iterator i=Units.begin();

    Canvas->TextOutA(0,0,"");    

    while(i!=Units.end())

    {

        (*i)->Draw(w,0);

        w+=(*i)->GetWidth();

        i++;

    }

}



void CSuperEditor::AddUnit(CUnit* Unit)

{

    Units.push_back(Unit);

    Unit->Canvas=Canvas;

}



CCharUnit::GetWidth()

{

    return 8;

}



CCharUnit::GetHeight()

{

    return 8;

}



void CCharUnit:: SetWord(unsigned char word)

{

    Word=word;

}



void CCharUnit::Draw(int x,int y)

{

    if(Canvas==NULL)return;

    char s[]=" ";

    s[0]=Word;

    Canvas->TextOutA(x,y,s);

}



CPicUnit::GetWidth()

{

    return 16;

}



CPicUnit::GetHeight()

{

    return 16;

}



void CPicUnit::Draw(int x,int y)

{

    if(Canvas==NULL)return;

    if(ImageList==NULL)return;

    ImageList->Draw(Canvas,x,y,Index,true);

}



void CPicUnit::SetIndex(int index)

{

    Index=index;

}