unit2.cpp

基于c++build的填充裁剪的源代码

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

#include <vcl.h>
#pragma hdrstop

#include "Unit2.h"
#include "Basic_graph.h"
//---------------------------------------------------------------------------
#pragma package(smart_init)
#pragma resource "*.dfm"
TForm2 *Form2;
//---------------------------------------------------------------------------
__fastcall TForm2::TForm2(TComponent* Owner)
        : TForm(Owner)
{
}
//---------------------------------------------------------------------------


void __fastcall TForm2::Button1Click(TObject *Sender)
{
    Form2->Close();
   Form1->Image1->Canvas->Pen->Color = clWhite;
   int x1,y1,x2,y2,x,y;
   x1=StrToFloat(Edit1->Text);
   y1=StrToFloat(Edit2->Text);
   x2=StrToFloat(Edit3->Text);
   y2=StrToFloat(Edit4->Text);            //定义变量与端点
    Form1->Image1->Canvas->MoveTo(x1,450-y1);

    Form1->Image1->Canvas->LineTo(x2,450-y1);
    Form1->Image1->Canvas->LineTo(x2,450-y2);
    Form1->Image1->Canvas->LineTo(x1,450-y2);
    Form1->Image1->Canvas->LineTo(x1,450-y1); //画矩形
    for(y=y1;y<=y2;y++)
    {
    for(x=x1;x<=x2;x++)
      {Form1->Image1->Canvas->Pixels[x][450-y]=clRed;
      }
    } //填充  */

}
//---------------------------------------------------------------------------