图片特技处理（c++builder）

//--------------------------------------------------------------------------- #include <vcl.h> #pragma hdrstop #include "effects.h" //--------------------------------------------------------------------------- #pragma package(smart_init) #pragma resource "*.dfm" TMainForm *MainForm; //--------------------------------------------------------------------------- __fastcall TMainForm::TMainForm(TComponent* Owner) : TForm(Owner) { Image1->Parent->DoubleBuffered=true; } //--------------------------------------------------------------------------- void __fastcall TMainForm::FormCreate(TObject *Sender) { bit1= new Graphics::TBitmap; bit2= new Graphics::TBitmap; i=0; bit1->LoadFromFile("t1.bmp"); bit2->Width = bit1->Width; bit2->Height = bit1->Height; width=bit1->Width; height=bit1->Height; dh_size=20;// } //--------------------------------------------------------------------------- void __fastcall TMainForm::FormDestroy(TObject *Sender) { delete bit1; delete bit2; } //--------------------------------------------------------------------------- void __fastcall TMainForm::Timer1Timer(TObject *Sender) { switch (flag){ case 1: // 从下方推出 if(i<=Image1->Height){ Image1->Canvas->CopyRect(Rect(0,height-i,width, height),bit1->Canvas,Rect(0,0,width,i)); i+=Step; } else Timer1->Enabled=false; break; case 2: // 从上方推出 if(i<=Image1->Height){ Image1->Canvas->CopyRect(Rect(0,0,width,i), bit1->Canvas,Rect(0,height-i,width,height)); i+=Step; } else Timer1->Enabled=false; break; case 3: // 从左边推出 if (i<=width){ Image1->Canvas->CopyRect(Rect(0,0,i,height), bit1->Canvas, Rect(width-i,0,width,height)); i+=Step; } else Timer1->Enabled=false; break; case 4: // 从右边推出 if (i<=width){ Image1->Canvas->CopyRect(Rect(width-i,0,width,height), bit1->Canvas, Rect(0,0,i,height)); i+=Step; } else Timer1->Enabled=false; break; case 5: // 水平交错 if (i<=width){ y=i; while (y >0){ bit2->Canvas->CopyRect(Rect(y-1,0,y,height), bit1->Canvas, Rect(width-i+y-1,0,width-i+y,height)); bit2->Canvas->CopyRect(Rect(width-y,0,width-y+1,height), bit1->Canvas, Rect(i-y,0,i-y+1,height)); y=y-2; } Image1->Canvas->Draw(0,0,bit2); i+=Step; } else Timer1->Enabled=false; break; case 6: // 从中心向四周圆形展开 if((i<=width)&& (i<=height)) { bit2->Canvas->Brush->Color=clBlack; bit2->Canvas->FillRect(Rect(0,0,width,height)); bit2->Canvas->Pen->Color=clGreen; bit2->Canvas->Ellipse((width/2)-i,(height/2)-i, (width/2)+i,(height/2)+i); bit2->Canvas->Brush->Color=clWhite; bit2->Canvas->FloodFill((width/2),(height/2), clGreen,fsBorder); bit2->Canvas->CopyMode=cmSrcAnd; bit2->Canvas->Draw(0,0,bit1); Image1->Canvas->Draw(0,0,bit2); } else { bit2->Canvas->Draw(0,0,bit1); Timer1->Enabled=false; } i=i+Step; break; case 7: //横向百叶窗 i=i+Step; if (i<dh) for (int a=0;a<dh_size;a++) { Image1->Canvas->CopyRect(Rect(0,a*dh,width,a*dh+i), bit1->Canvas,Rect(0,a*dh,width,a*dh+i)); } else { Image1->Canvas->Draw(0,0,bit1); Timer1->Enabled=false; } break; case 8: //纵向百叶窗 i=i+Step; if (i<dh) //20条纵窗帘 for (int a=0;a<dh_size;a++) { Image1->Canvas->CopyRect(Rect(a*dh+i-1,0,a*dh+i,height), bit1->Canvas,Rect(a*dh+i-1,0,a*dh+i,height)); } else { Image1->Canvas->Draw(0,0,bit1); Timer1->Enabled=false; } break; case 9: // 随机块 if (i<300){ int j,k; while (b[k=random(15)][j=random(20)]); Image1->Canvas->CopyRect(Rect(30*j,30*k,30*j+30,30*k+30), bit1->Canvas,Rect(30*j,30*k,30*j+30,30*k+30)); b[k][j]=true; i++; } else Timer1->Enabled=false; break; case 10: // 从小到大 int dx,dy; i=i+Step; if (i<=100) { dx=width*i/100/2; dy=height*i/100/2; Image1->Canvas->Brush->Color=clBlack; Image1->Canvas->FillRect(Rect(0,0,width,height)); Image1->Canvas->StretchDraw(Rect((width/2-dx),(height/2-dy), (width/2+dx),(height/2+dy)),bit1); } else Timer1->Enabled=false; break; } } //--------------------------------------------------------------------------- void __fastcall TMainForm::FromDownClick(TObject *Sender) { Init(1,5,100); } //--------------------------------------------------------------------------- void __fastcall TMainForm::FromUpClick(TObject *Sender) { Init(2,5,100); } //--------------------------------------------------------------------------- void __fastcall TMainForm::FromLeftClick(TObject *Sender) { Init(3,5,100); } //--------------------------------------------------------------------------- void __fastcall TMainForm::FromRightClick(TObject *Sender) { Init(4,5,100); } //--------------------------------------------------------------------------- void __fastcall TMainForm::HorizontalMoveClick(TObject *Sender) { Init(5,2,30); } void __fastcall TMainForm::FromCircleClick(TObject *Sender) { Init(6,5,100); } //--------------------------------------------------------------------------- void __fastcall TMainForm::HorizontalWindowClick(TObject *Sender) { dh=height/dh_size; Init(7,1,100); } //--------------------------------------------------------------------------- void __fastcall TMainForm::verticalWindowClick(TObject *Sender) { dh=width/dh_size; Init(8,1,100); } //--------------------------------------------------------------------------- void __fastcall TMainForm::RandomClick(TObject *Sender) { Init(9,2,30); } //------------------------------------------------