如何在 TDrawGrid 的单元格中显示图片 - 回复 "巅枫" 的问题

unit Unit1;

interface

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

type
TForm1 = class(TForm)
DrawGrid1: TDrawGrid;
procedure FormCreate(Sender: TObject);
procedure DrawGrid1DrawCell(Sender: TObject; ACol, ARow: Integer; Rect: TRect; State: TGridDrawState);
procedure FormDestroy(Sender: TObject);
end;

var
Form1: TForm1;

implementation

{$R *.dfm}

var
bits: array[0..2] of TBitmap;

procedure TForm1.FormCreate(Sender: TObject);
var
i: Integer;
begin
ChDir('c:\Temp\');
for i := Low(bits) to High(bits) do
begin
bits[i] := TBitmap.Create;
bits[i].LoadFromFile(IntToStr(i+1) + '.bmp');
end;

DrawGrid1.FixedRows := 0;
DrawGrid1.FixedCols := 0;
DrawGrid1.RowCount := 1;
DrawGrid1.ColCount := 3;
DrawGrid1.DefaultRowHeight := bits[0].Height;
DrawGrid1.DefaultColWidth := bits[0].Width;
end;

procedure TForm1.DrawGrid1DrawCell(Sender: TObject; ACol, ARow: Integer; Rect: TRect; State: TGridDrawState);
var
r: TRect;
begin
if (ARow = 0) and (ACol >= Low(bits)) and (ACol <= High(bits)) then
begin
r := Bounds(0, 0, bits[ACol].Width, bits[ACol].Height);
//r := Bounds(0, 0, Rect.Right - Rect.Left, Rect.Bottom - Rect.Top);
TDrawGrid(Sender).Canvas.CopyRect(Rect, bits[ACol].Canvas, r);
end;
end;

procedure TForm1.FormDestroy(Sender: TObject);
var
i: Integer;
begin
for i := Low(bits) to High(bits) do bits[i].Free;
end;

end.