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 程式師世界 >> 編程語言 >> 更多編程語言 >> Delphi >> Delphi與DirectX之DelphiX(14)

Delphi與DirectX之DelphiX(14)

編輯:Delphi

TPictureCollectionItem.DrawRotate(); 的同類函數還有:
TPictureCollectionItem.DrawRotateAdd();
TPictureCollectionItem.DrawRotateSub();
TPictureCollectionItem.DrawRotateAlpha();
TPictureCollectionItem.DrawRotateAddCol();
TPictureCollectionItem.DrawRotateSubCol();
TPictureCollectionItem.DrawRotateAlphaCol();

本例分別進行了演示, 運行效果圖:

代碼文件:

unit Unit1;
interface
uses
 Windows, Messages, SysUtils, Variants, Classes, Graphics, Controls, Forms,
 Dialogs, DXDraws, StdCtrls;
type
 TForm1 = class(TForm)
  DXDraw1: TDXDraw;
  DXImageList1: TDXImageList;
  Button1: TButton;
  Button2: TButton;
  Button3: TButton;
  Button4: TButton;
  Button5: TButton;
  Button6: TButton;
  Button7: TButton;
  procedure FormCreate(Sender: TObject);
  procedure Button1Click(Sender: TObject);
  procedure Button2Click(Sender: TObject);
  procedure Button3Click(Sender: TObject);
  procedure Button4Click(Sender: TObject);
  procedure Button5Click(Sender: TObject);
  procedure Button6Click(Sender: TObject);
  procedure Button7Click(Sender: TObject);
 end;
var
 Form1: TForm1;
implementation
{$R *.dfm}
const
 Angle = 32; {在這裡相當於 45° 角}
 clr = $777777;
var
 PicItem: TPictureCollectionItem;
procedure TForm1.FormCreate(Sender: TObject);
const
 ImgPath1 = 'C:\Temp\DelphiX.bmp';
begin
 DXImageList1.DXDraw := DXDraw1;
 PicItem := TPictureCollectionItem(DXImageList1.Items.Add);
 PicItem.Picture.LoadFromFile(ImgPath1);
 Button1.Caption := 'DrawRotateAdd';
 Button2.Caption := 'DrawRotateSub';
 Button3.Caption := 'DrawRotateAlpha';
 Button4.Caption := 'DrawRotateAddCol';
 Button5.Caption := 'DrawRotateSubCol';
 Button6.Caption := 'DrawRotateAlphaCol';
 Button7.Caption := '原始效果';
end;
procedure TForm1.Button1Click(Sender: TObject);
begin
 DXDraw1.Surface.Fill(clr);
 PicItem.DrawRotateAdd(DXDraw1.Surface,
           DXDraw1.Width div 2, DXDraw1.Height div 2,
           PicItem.Width, PicItem.Height,
           0,
           0.5, 0.5,
           Angle);
 DXDraw1.Flip;
end;
procedure TForm1.Button2Click(Sender: TObject);
begin
 DXDraw1.Surface.Fill(clr);
 PicItem.DrawRotateSub(DXDraw1.Surface,
           DXDraw1.Width div 2, DXDraw1.Height div 2,
           PicItem.Width, PicItem.Height,
           0,
           0.5, 0.5,
           Angle);
 DXDraw1.Flip;
end;
procedure TForm1.Button3Click(Sender: TObject);
begin
 DXDraw1.Surface.Fill(clr);
 PicItem.DrawRotateAlpha(DXDraw1.Surface,
           DXDraw1.Width div 2, DXDraw1.Height div 2,
           PicItem.Width, PicItem.Height,
           0,
           0.5, 0.5,
           Angle,
           128);
 DXDraw1.Flip;
end;
procedure TForm1.Button4Click(Sender: TObject);
begin
 DXDraw1.Surface.Fill(clr);
 PicItem.DrawRotateAddCol(DXDraw1.Surface,
           DXDraw1.Width div 2, DXDraw1.Height div 2,
           PicItem.Width, PicItem.Height,
           0,
           0.5, 0.5,
           Angle,
           clYellow);
 DXDraw1.Flip;
end;
procedure TForm1.Button5Click(Sender: TObject);
begin
 DXDraw1.Surface.Fill(clr);
 PicItem.DrawRotateSubCol(DXDraw1.Surface,
           DXDraw1.Width div 2, DXDraw1.Height div 2,
           PicItem.Width, PicItem.Height,
           0,
           0.5, 0.5,
           Angle,
           clYellow);
 DXDraw1.Flip;
end;
procedure TForm1.Button6Click(Sender: TObject);
begin
 DXDraw1.Surface.Fill(clr);
 PicItem.DrawRotateAlphaCol(DXDraw1.Surface,
           DXDraw1.Width div 2, DXDraw1.Height div 2,
           PicItem.Width, PicItem.Height,
           0,
           0.5, 0.5,
           Angle,
           clYellow);
 DXDraw1.Flip;
end;
procedure TForm1.Button7Click(Sender: TObject);
begin
 DXDraw1.Surface.Fill(clr);
 PicItem.DrawRotate(DXDraw1.Surface,
           DXDraw1.Width div 2, DXDraw1.Height div 2,
           PicItem.Width, PicItem.Height,
           0,
           0.5, 0.5,
           Angle);
 DXDraw1.Flip;
end;
end.

窗體文件:

object Form1: TForm1
 Left = 0
 Top = 0
 Caption = 'Form1'
 ClientHeight = 226
 ClientWidth = 356
 Color = clBtnFace
 Font.Charset = DEFAULT_CHARSET
 Font.Color = clWindowText
 Font.Height = -11
 Font.Name = 'Tahoma'
 Font.Style = []
 OldCreateOrder = False
 OnCreate = FormCreate
 PixelsPerInch = 96
 TextHeight = 13
 object DXDraw1: TDXDraw
  Left = 8
  Top = 8
  Width = 225
  Height = 211
  AutoInitialize = True
  AutoSize = True
  Color = clBlack
  Display.FixedBitCount = False
  Display.FixedRatio = True
  Display.FixedSize = True
  Options = [doAllowReboot, doWaitVBlank, doCenter, do3D, doDirectX7Mode, doHardware, doSelectDriver]
  SurfaceHeight = 211
  SurfaceWidth = 225
  TabOrder = 0
  Traces = <>
 end
 object Button1: TButton
  Left = 239
  Top = 8
  Width = 112
  Height = 25
  Caption = 'Button1'
  TabOrder = 1
  OnClick = Button1Click
 end
 object Button2: TButton
  Left = 239
  Top = 39
  Width = 112
  Height = 25
  Caption = 'Button2'
  TabOrder = 2
  OnClick = Button2Click
 end
 object Button3: TButton
  Left = 239
  Top = 70
  Width = 112
  Height = 25
  Caption = 'Button3'
  TabOrder = 3
  OnClick = Button3Click
 end
 object Button4: TButton
  Left = 239
  Top = 101
  Width = 112
  Height = 25
  Caption = 'Button4'
  TabOrder = 4
  OnClick = Button4Click
 end
 object Button5: TButton
  Left = 239
  Top = 132
  Width = 112
  Height = 25
  Caption = 'Button5'
  TabOrder = 5
  OnClick = Button5Click
 end
 object Button6: TButton
  Left = 239
  Top = 163
  Width = 112
  Height = 25
  Caption = 'Button6'
  TabOrder = 6
  OnClick = Button6Click
 end
 object Button7: TButton
  Left = 239
  Top = 194
  Width = 112
  Height = 25
  Caption = 'Button7'
  TabOrder = 7
  OnClick = Button7Click
 end
 object DXImageList1: TDXImageList
  Items.ColorTable = {
   0000000000000000000000000000000000000000000000000000000000000000
   0000000000000000000000000000000000000000000000000000000000000000
   0000000000000000000000000000000000000000000000000000000000000000
   0000000000000000000000000000000000000000000000000000000000000000
   0000000000000000000000000000000000000000000000000000000000000000
   0000000000000000000000000000000000000000000000000000000000000000
   0000000000000000000000000000000000000000000000000000000000000000
   0000000000000000000000000000000000000000000000000000000000000000
   0000000000000000000000000000000000000000000000000000000000000000
   0000000000000000000000000000000000000000000000000000000000000000
   0000000000000000000000000000000000000000000000000000000000000000
   0000000000000000000000000000000000000000000000000000000000000000
   0000000000000000000000000000000000000000000000000000000000000000
   0000000000000000000000000000000000000000000000000000000000000000
   0000000000000000000000000000000000000000000000000000000000000000
   0000000000000000000000000000000000000000000000000000000000000000
   0000000000000000000000000000000000000000000000000000000000000000
   0000000000000000000000000000000000000000000000000000000000000000
   0000000000000000000000000000000000000000000000000000000000000000
   0000000000000000000000000000000000000000000000000000000000000000
   0000000000000000000000000000000000000000000000000000000000000000
   0000000000000000000000000000000000000000000000000000000000000000
   0000000000000000000000000000000000000000000000000000000000000000
   0000000000000000000000000000000000000000000000000000000000000000
   0000000000000000000000000000000000000000000000000000000000000000
   0000000000000000000000000000000000000000000000000000000000000000
   0000000000000000000000000000000000000000000000000000000000000000
   0000000000000000000000000000000000000000000000000000000000000000
   0000000000000000000000000000000000000000000000000000000000000000
   0000000000000000000000000000000000000000000000000000000000000000
   0000000000000000000000000000000000000000000000000000000000000000
   0000000000000000000000000000000000000000000000000000000000000000}
  Items = <>
  Left = 192
  Top = 16
 end
end

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