Delphi 与 DirectX 之 DelphiX(90): TDIB.DrawMorphed();

本例效果图:

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代码文件:

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unit Unit1;



interface



uses

  Windows, Messages, SysUtils, Variants, Classes, Graphics, Controls, Forms,

  Dialogs, DIB, StdCtrls;



type

  TForm1 = class(TForm)

    DXPaintBox1: TDXPaintBox;

    Button1: TButton;

    Button2: TButton;

    Button3: TButton;

    procedure Button1Click(Sender: TObject);

    procedure Button2Click(Sender: TObject);

    procedure Button3Click(Sender: TObject);

  end;



var

  Form1: TForm1;



implementation



{$R *.dfm}



const

  c1 = clRed;

  c2 = clYellow;



var

  w,h: Integer;



procedure TForm1.Button1Click(Sender: TObject);

begin

  w := DXPaintBox1.ClientWidth;

  h := DXPaintBox1.ClientHeight;

  DXPaintBox1.DIB.SetSize(w, h, 24);

  DXPaintBox1.DIB.Fill(c1);

  DXPaintBox1.DIB.Canvas.Brush.Style := bsClear;

  DXPaintBox1.DIB.Canvas.Font.Color := c2;

  DXPaintBox1.DIB.Canvas.Font.Name := 'Arial Black';

  DXPaintBox1.DIB.Canvas.Font.Size := 36;

  DXPaintBox1.DIB.Canvas.Font.Style := [fsBold];

  DXPaintBox1.DIB.Canvas.TextOut(20, 10, 'DelphiX');

  DXPaintBox1.Repaint;

end;



procedure TForm1.Button2Click(Sender: TObject);

begin

  DXPaintBox1.DIB.DrawMorphed(DXPaintBox1.DIB, 0, 0, w, h, 0, 0, c2);

  DXPaintBox1.Repaint;

end;



procedure TForm1.Button3Click(Sender: TObject);

begin

  DXPaintBox1.DIB.DrawMorphed(DXPaintBox1.DIB, 0, 0, w, h, 0, 0, c1);

  DXPaintBox1.Repaint;

end;



end.


 
   

窗体文件:

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object Form1: TForm1

  Left = 0

  Top = 0

  Caption = 'Form1'

  ClientHeight = 134

  ClientWidth = 273

  Color = clBtnFace

  Font.Charset = DEFAULT_CHARSET

  Font.Color = clWindowText

  Font.Height = -11

  Font.Name = 'Tahoma'

  Font.Style = []

  OldCreateOrder = False

  PixelsPerInch = 96

  TextHeight = 13

  object DXPaintBox1: TDXPaintBox

    Left = 8

    Top = 8

    Width = 257

    Height = 89

    AutoStretch = False

    Center = False

    KeepAspect = False

    Stretch = False

    ViewWidth = 0

    ViewHeight = 0

  end

  object Button1: TButton

    Left = 8

    Top = 103

    Width = 75

    Height = 25

    Caption = 'Button1'

    TabOrder = 0

    OnClick = Button1Click

  end

  object Button2: TButton

    Left = 109

    Top = 103

    Width = 75

    Height = 25

    Caption = 'Button2'

    TabOrder = 1

    OnClick = Button2Click

  end

  object Button3: TButton

    Left = 190

    Top = 103

    Width = 75

    Height = 25

    Caption = 'Button3'

    TabOrder = 2

    OnClick = Button3Click

  end

end