unit1.cpp

C++ Builder 6 编程实例教程-北京希望电子出版社出版

//---------------------------------------------------------------------------

#include <vcl.h>
#pragma hdrstop

#include "Unit1.h"
  HDC hDC1;
  HDC hDC2;
  int k;
  int i,j;
  //定义两个全局变量用于控制循环
  int w,h;
  //用于存储图像控件的高度和宽度

//---------------------------------------------------------------------------
#pragma package(smart_init)
#pragma resource "*.dfm"
TForm1 *Form1;
//---------------------------------------------------------------------------
__fastcall TForm1::TForm1(TComponent* Owner)
        : TForm(Owner)
{
}
//---------------------------------------------------------------------------

void __fastcall TForm1::OpenFileClick(TObject *Sender)
{
    AnsiString filename;
    if(PictureDialog->Execute())
    //显示对话框
    {
        filename=PictureDialog->FileName;
        Image1->Picture->Bitmap->LoadFromFile(filename);
        //显示文件
    }
}
//---------------------------------------------------------------------------

void __fastcall TForm1::FeiRuClick(TObject *Sender)
{
    PaintBox1->Refresh();
    hDC2=PaintBox1->Canvas->Handle;
    hDC1=Image1->Canvas->Handle;
    for(i=0;i<w;i++)
    {
        BitBlt(hDC2,0,0,i,h,hDC1,w-i,0,SRCCOPY);
        Sleep(10);
        //从左面飞入
    }
        
}
//---------------------------------------------------------------------------
void __fastcall TForm1::FormCreate(TObject *Sender)
{
    w=Image1->Width;
    h=Image1->Height;
        
}
//---------------------------------------------------------------------------
void __fastcall TForm1::KuoSanClick(TObject *Sender)
{
    PaintBox1->Refresh();
    hDC2=PaintBox1->Canvas->Handle;
    hDC1=Image1->Canvas->Handle;
    i=w/2;
    j=h/2;
    while(i>0)
    {
        BitBlt(hDC2,i,j,w-2*i,h-2*j,hDC1,i,j,SRCCOPY);
        //从中间扩散
        i=i-2;
        j=j-2;
        Sleep(10);
    }
        
}
//---------------------------------------------------------------------------
void __fastcall TForm1::JiaoChaClick(TObject *Sender)
{
    PaintBox1->Refresh();
    hDC2=PaintBox1->Canvas->Handle;
    hDC1=Image1->Canvas->Handle;
    for(i=0;i<w;i++)
    {
        for(j=0;j<1;j++)
        {
            BitBlt(hDC2,0,0,i,h/4,hDC1,w-i,0,SRCCOPY);
            BitBlt(hDC2,w-i-2,h/4,i,h/4,hDC1,0,h/4,SRCCOPY);
            BitBlt(hDC2,0,h/2,i,h/4,hDC1,w-i,h/2,SRCCOPY);
            BitBlt(hDC2,w-i-2,3*h/4,i,h/4,hDC1,0,3*h/4,SRCCOPY);
        }
    }
    //交叉飞入效果
        
}
//---------------------------------------------------------------------------
void __fastcall TForm1::LiangBianClick(TObject *Sender)
{
    PaintBox1->Refresh();
    hDC2=PaintBox1->Canvas->Handle;
    hDC1=Image1->Canvas->Handle;
    for(i=0;i<(w/2+1);i++)
    {
        BitBlt(hDC2,i,0,1,h,hDC1,i,0,SRCCOPY);
        BitBlt(hDC2,w-i,0,w,h,hDC1,w-i,0,SRCCOPY);
        //从两面向中间显示
        Sleep(10);
    }
        
}
//---------------------------------------------------------------------------
void __fastcall TForm1::LaShengClick(TObject *Sender)
{
    k=0;
    PaintBox1->Refresh();
    hDC2=PaintBox1->Canvas->Handle;
    hDC1=Image1->Canvas->Handle;
    while(k<101)
    {
        for(i=w;i>0;i--)
        {
            BitBlt(hDC2,(i*k)/100,0,1,h,hDC1,i,0,SRCCOPY);
            //从左边向右边拉伸
        }
    k=k+1;
    }
        
}
//---------------------------------------------------------------------------
void __fastcall TForm1::QingChuClick(TObject *Sender)
{
    PaintBox1->Refresh();
    hDC2=PaintBox1->Canvas->Handle;
    hDC1=Image1->Canvas->Handle;
    for(i=0;i<w;i++)
    {
        BitBlt(hDC2,w-i,0,i,h,hDC1,w-i,0,SRCCOPY);
        //从右面清除
        Sleep(10);
    }
        
}
//---------------------------------------------------------------------------
void __fastcall TForm1::FanZhuanClick(TObject *Sender)
{
    PaintBox1->Refresh();
    hDC2=PaintBox1->Canvas->Handle;
    hDC1=Image1->Canvas->Handle;
    BitBlt(hDC2,0,0,w,h,hDC1,0,0,NOTSRCCOPY);
    //颜色反转
        
}
//---------------------------------------------------------------------------
void __fastcall TForm1::NongWuClick(TObject *Sender)
{
    PaintBox1->Refresh();
    hDC2=PaintBox1->Canvas->Handle;
    hDC1=Image1->Canvas->Handle;
    BitBlt(hDC2,0,0,w,h,hDC1,0,0,SRCPAINT);
    //浓雾效果
        
}
//---------------------------------------------------------------------------
void __fastcall TForm1::TouMingClick(TObject *Sender)
{
    PaintBox1->Refresh();
    hDC2=PaintBox1->Canvas->Handle;
    hDC1=Image1->Canvas->Handle;
    BitBlt(hDC2,0,0,w,h,hDC1,0,0,SRCAND);
    //透明效果
        
}
//---------------------------------------------------------------------------
void __fastcall TForm1::SMBFClick(TObject *Sender)
{
    PaintBox1->Refresh();
    hDC2=PaintBox1->Canvas->Handle;
    hDC1=Image1->Canvas->Handle;
    for(i=0;i<w/3;i++)
    {
        for(j=0;j<1;j++)
        {
            BitBlt(hDC2,0,0,i,i,hDC1,w/3-i,h/3-i,SRCCOPY);
            BitBlt(hDC2,w/3,0,w/3,i,hDC1,w/3,h/3-i,SRCCOPY);
            BitBlt(hDC2,w-i,0,i,i,hDC1,2*w/3,h/3-i,SRCCOPY);
            BitBlt(hDC2,0,h/3,i,h/3,hDC1,w/3-i,h/3,SRCCOPY);
            BitBlt(hDC2,w-i,h/3,i,h/3,hDC1,2*w/3,h/3,SRCCOPY);
            BitBlt(hDC2,0,h-i,i,h/3,hDC1,w/3-i,2*h/3,SRCCOPY);
            BitBlt(hDC2,w/3,h-i,w/3,h-i,hDC1,w/3,2*h/3,SRCCOPY);
            BitBlt(hDC2,w-i,h-i,i,i,hDC1,2*w/3,2*h/3,SRCCOPY);
            BitBlt(hDC2,w/2-i/2,h/2-i/2,i,i,hDC1,w/2-i/2,h/2-i/2,SRCCOPY);
            Sleep(10);
        }
    }
    //四面八方效果
        
}
//---------------------------------------------------------------------------
void __fastcall TForm1::MenLianClick(TObject *Sender)
{
    PaintBox1->Refresh();
    int k;
    hDC2=PaintBox1->Canvas->Handle;
    hDC1=Image1->Canvas->Handle;
    for(i=0;i<w/10;i++)
    {
        for(k=0;k<10;k++)
        {
            BitBlt(hDC2,k*w/10,0,i+2,h,hDC1,k*w/10,0,SRCCOPY);
            Sleep(10);
        }
    }
    //门帘效果
        
}
//---------------------------------------------------------------------------
void __fastcall TForm1::GongZiClick(TObject *Sender)
{
    PaintBox1->Refresh();
    hDC2=PaintBox1->Canvas->Handle;
    hDC1=Image1->Canvas->Handle;
    for(i=0;i<3*w/2;i++)
        {
            BitBlt(hDC2,w/3-i/3,h/3-i/3,w/2+2*i/3,i/3,hDC1,w/3-i/3,h/3-i/3,SRCCOPY);
            BitBlt(hDC2,w/3-i/3,2*h/3-1,w/2+2*i/3,i/3,hDC1,w/3-i/3,2*h/3,SRCCOPY);
            BitBlt(hDC2,w/2-i/3,h/3,2*i/3,h/3,hDC1,w/2-i/3,h/3,SRCCOPY);
            Sleep(10);
        }
    //工字效果
        
}
//---------------------------------------------------------------------------
void __fastcall TForm1::CloseFileClick(TObject *Sender)
{
    Image1->Picture->Assign(NULL);
    //取消文件的显示   
        
}
//---------------------------------------------------------------------------