我以前在codelphi.com问的
引用：
信 息 ID： 1458
信息标题：看下面的代码吧，也可以实现的类似XPMENU！(5760字)
信息作者：寒易
发表时间：2001-8-31 14:58:00
阅读次数：30
信息内容：
=================
unit fMenu;
interface
uses
Windows, SysUtils, Classes, Graphics, Controls, Forms, Menus, ImgList;
type
TForm1 = class(TForm)
ImageList1: TImageList;
MainMenu1: TMainMenu;
FileMenu: TMenuItem;
procedure DrawItem(Sender: TObject; ACanvas: TCanvas; ARect: TRect;
Selected: Boolean);
procedure FormCreate(Sender: TObject);
private
procedure MenueDrawItemX(xMenu: TMenu);
public
end;
procedure MenueDrawItem(Sender: TObject; ACanvas: TCanvas; ARect: TRect;
Selected: Boolean);
var
Form1: TForm1;
implementation
{$R *.DFM}
procedure TForm1.FormCreate(Sender: TObject);
begin
MenueDrawItemX(Menu);
end;
procedure TForm1.DrawItem(Sender: TObject; ACanvas: TCanvas; ARect: TRect;
Selected: Boolean);
begin
MenueDrawItem(Sender, ACanvas, ARect, Selected);
end;
procedure TForm1.MenueDrawItemX(xMenu: TMenu);
var
i: integer;
B: TBitmap;
FMenuItem: TMenuItem;
begin
B := TBitmap.Create;
B.Width := 1;
B.Height := 1;
for i := 0 to ComponentCount - 1 do
if Components is TMenuItem then
begin
FMenuItem := TMenuItem(Components);
FMenuItem.OnDrawItem := DrawItem;
if (FMenuItem.ImageIndex = -1) and
(FMenuItem.Bitmap.width = 0) and (xMenu <> nil) then
if FMenuItem.GetParentComponent.Name <> xMenu.Name then
FMenuItem.Bitmap.Assign(b);
end;
B.Free;
DrawMenuBar(handle);
end;
procedure MenueDrawItem(Sender: TObject; ACanvas: TCanvas; ARect: TRect;
Selected: Boolean);
var
txt: string;
B: TBitmap;
IConRect, TextRect: TRect;
FBackColor, FIconBackColor, FSelectedBkColor, FFontColor, FSelectedFontColor,
FDisabledFontColor, FSeparatorColor, FCheckedColor: TColor;
i, X1, X2: integer;
TextFormat: integer;
HasImgLstBitmap: boolean;
FMenuItem: TMenuItem;
FMenu: TMenu;
begin
FMenuItem := TMenuItem(Sender);
FMenu := FMenuItem.Parent.GetParentMenu;
FBackColor := $00E1E1E1;
FIconBackColor := $00D1D1D1;
FSelectedBkColor := $00DCCFC7;
FFontColor := clBlack;
FSelectedFontColor := clNavy;
FDisabledFontColor := clGray;
FSeparatorColor := $00D1D1D1;
FCheckedColor := clGray;
if FMenu.IsRightToLeft then
begin
X1 := ARect.Right - 20;
X2 := ARect.Right;
end
else
begin
X1 := ARect.Left;
X2 := ARect.Left + 20;
end;
IConRect := Rect(X1, ARect.Top, X2, ARect.Bottom);
TextRect := ARect;
txt := '' '' + FMenuItem.Caption;
B := TBitmap.Create;
B.Transparent := True;
B.TransparentMode := tmAuto;
HasImgLstBitmap := false;
if (FMenuItem.Parent.GetParentMenu.Images <> nil) or
(FMenuItem.Parent.SubMenuImages <> nil) then
begin
if FMenuItem.ImageIndex <> -1 then
HasImgLstBitmap := true
else
HasImgLstBitmap := false;
end;
if HasImgLstBitmap then
begin
if FMenuItem.Parent.SubMenuImages <> nil then
FMenuItem.Parent.SubMenuImages.GetBitmap(FMenuItem.ImageIndex, B)
else
FMenuItem.Parent.GetParentMenu.Images.GetBitmap(FMenuItem.ImageIndex, B)
end
else
if FMenuItem.Bitmap.Width > 0 then
B.Assign(TBitmap(FMenuItem.Bitmap));
if FMenu.IsRightToLeft then
begin
X1 := ARect.Left;
X2 := ARect.Right - 20;
end
else
begin
X1 := ARect.Left + 20;
X2 := ARect.Right;
end;
TextRect := Rect(X1, ARect.Top, X2, ARect.Bottom);
ACanvas.brush.color := FBackColor;
ACanvas.FillRect(TextRect);
if FMenu is TMainMenu then
for i := 0 to FMenuItem.GetParentMenu.Items.Count - 1 do
if FMenuItem.GetParentMenu.Items = FMenuItem then
begin
ACanvas.brush.color := FIConBackColor;
ACanvas.FillRect(ARect);
if (FMenuItem.ImageIndex = -1) and (FMenuItem.Bitmap.width = 0) then
begin
TextRect := ARect;
break;
end;
end;
ACanvas.brush.color := FIconBackColor;
ACanvas.FillRect(IconRect);
if FMenuItem.Enabled then
ACanvas.Font.Color := FFontColor
else
ACanvas.Font.Color := FDisabledFontColor;
if Selected then
begin
ACanvas.brush.Style := bsSolid;
ACanvas.brush.color := FSelectedBkColor;
ACanvas.FillRect(TextRect);
ACanvas.Pen.color := FSelectedFontColor;
ACanvas.Brush.Style := bsClear;
ACanvas.RoundRect(TextRect.Left, TextRect.top, TextRect.Right,
TextRect.Bottom, 6, 6);
if FMenuItem.Enabled then
ACanvas.Font.Color := FSelectedFontColor;
end;
X1 := IConRect.Left + 2;
if B <> nil then
ACanvas.Draw(X1, IConRect.top + 1, B);
if FMenuItem.Checked then
begin
ACanvas.Pen.color := FCheckedColor;
ACanvas.Brush.Style := bsClear;
ACanvas.RoundRect(IconRect.Left, IconRect.top, IconRect.Right,
IconRect.Bottom, 3, 3);
end;
if not FMenuItem.IsLine then
begin
SetBkMode(ACanvas.Handle, TRANSPARENT);
ACanvas.Font.Name := ''Tahoma'';
if FMenu.IsRightToLeft then
ACanvas.Font.Charset := ARABIC_CHARSET;
if FMenu.IsRightToLeft then
TextFormat := DT_RIGHT + DT_RTLREADING
else
TextFormat := 0;
if FMenuItem.Default then
begin
Inc(TextRect.Left, 1);
Inc(TextRect.Right, 1);
Inc(TextRect.Top, 1);
ACanvas.Font.color := clGray;
DrawtextEx(ACanvas.Handle,
PChar(txt),
Length(txt),
TextRect, TextFormat, nil);
Dec(TextRect.Left, 1);
Dec(TextRect.Right, 1);
Dec(TextRect.Top, 1);
ACanvas.Font.color := FFontColor;
end;
DrawtextEx(ACanvas.Handle,
PChar(txt),
Length(txt),
TextRect, TextFormat, nil);
txt := ShortCutToText(FMenuItem.ShortCut) + '' '';
if FMenu.IsRightToLeft then
TextFormat := DT_LEFT
else
TextFormat := DT_RIGHT;
DrawtextEx(ACanvas.Handle,
PChar(txt),
Length(txt),
TextRect, TextFormat, nil);
end
else
begin
ACanvas.Pen.Color := FSeparatorColor;
ACanvas.MoveTo(ARect.Left + 10,
TextRect.Top +
Round((TextRect.Bottom - TextRect.Top) / 2));
ACanvas.LineTo(ARect.Right - 2,
TextRect.Top +
Round((TextRect.Bottom - TextRect.Top) / 2))
end;
B.free;
end;
end.
