Delphi 2009 之 TCategoryPanelGroup[2]: HeaderAlignment、GradientDirection


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本例效果图:



代码文件:
unit Unit1;

interface

uses
  Windows, Messages, SysUtils, Variants, Classes, Graphics, Controls, Forms,
  Dialogs, ExtCtrls, StdCtrls;

type
  TForm1 = class(TForm)
    CategoryPanelGroup1: TCategoryPanelGroup;
    CategoryPanel1: TCategoryPanel;
    CategoryPanel2: TCategoryPanel;
    CategoryPanel3: TCategoryPanel;
    RadioGroup1: TRadioGroup;
    RadioGroup2: TRadioGroup;
    procedure FormCreate(Sender: TObject);
    procedure RadioGroup1Click(Sender: TObject);
    procedure RadioGroup2Click(Sender: TObject);
  end;

var
  Form1: TForm1;

implementation

{$R *.dfm}

uses TypInfo, GraphUtil;

procedure TForm1.FormCreate(Sender: TObject);
var
  i: Integer;
begin
  CategoryPanel1.Height := ClientHeight div 2;
  CategoryPanel2.Height := CategoryPanel1.Height;
  CategoryPanel3.Height := CategoryPanel1.Height;

  CategoryPanel1.Caption := 'CPanel1';
  CategoryPanel2.Caption := 'CPanel2';
  CategoryPanel3.Caption := 'CPanel3';

  RadioGroup1.Caption := 'HeaderAlignment';
  for i := 0 to 2 do
    RadioGroup1.Items.Add(GetEnumName(TypeInfo(TAlignment), i));
  RadioGroup1.ItemIndex := 0;

  RadioGroup2.Caption := 'GradientDirection';
  for i := 0 to 1 do
    RadioGroup2.Items.Add(GetEnumName(TypeInfo(TGradientDirection), i));
  RadioGroup2.ItemIndex := 1;
end;

procedure TForm1.RadioGroup1Click(Sender: TObject);
begin
  CategoryPanelGroup1.HeaderAlignment := TAlignment(RadioGroup1.ItemIndex);
end;

procedure TForm1.RadioGroup2Click(Sender: TObject);
begin
  CategoryPanelGroup1.GradientDirection := TGradientDirection(RadioGroup2.ItemIndex);
end;

end.

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