PopForm.pas
资源名称:delphi.rar [点击查看]
上传用户:fh681027
上传日期:2022-07-23
资源大小:1959k
文件大小:3k
源码类别:
Delphi控件源码
开发平台:
Delphi
- unit PopForm;
- interface
- uses
- SysUtils, Windows, Classes, Graphics, Forms, Controls,
- StdCtrls, Menus, Dialogs, ExtCtrls;
- type
- TFormPopup = class(TForm)
- ColorDialog1: TColorDialog;
- PopupMenu1: TPopupMenu;
- BackColor2: TMenuItem;
- PopupMenu2: TPopupMenu;
- Left2: TMenuItem;
- Center2: TMenuItem;
- Right2: TMenuItem;
- Label1: TLabel;
- Label2: TLabel;
- Label3: TLabel;
- procedure Label3MouseDown(Sender: TObject; Button: TMouseButton;
- Shift: TShiftState; X, Y: Integer);
- procedure Label1ContextPopup(Sender: TObject; MousePos: TPoint;
- var Handled: Boolean);
- procedure Left2Click(Sender: TObject);
- procedure Center2Click(Sender: TObject);
- procedure Right2Click(Sender: TObject);
- procedure BackColor2Click(Sender: TObject);
- procedure Label2ContextPopup(Sender: TObject; MousePos: TPoint;
- var Handled: Boolean);
- end;
- var
- FormPopup: TFormPopup;
- implementation
- {$R *.DFM}
- procedure TFormPopup.Label3MouseDown(Sender: TObject;
- Button: TMouseButton; Shift: TShiftState; X, Y: Integer);
- var
- ClientPoint, ScreenPoint: TPoint;
- begin
- if Button = mbRight then
- begin
- ClientPoint.X := X;
- ClientPoint.Y := Y;
- ScreenPoint := Label3.ClientToScreen (ClientPoint);
- PopupMenu1.Popup (ScreenPoint.X, ScreenPoint.Y)
- end;
- end;
- procedure TFormPopup.Label1ContextPopup(Sender: TObject;
- MousePos: TPoint; var Handled: Boolean);
- var
- ScreenPoint: TPoint;
- begin
- // add dynamic items
- PopupMenu2.Items.Add (NewLine);
- PopupMenu2.Items.Add (NewItem (TimeToStr (Now),
- 0, False, True, nil, 0, ''));
- // show popup
- ScreenPoint := ClientToScreen (MousePos);
- PopupMenu2.Popup (ScreenPoint.X, ScreenPoint.Y);
- Handled := True;
- // remove dynamic items
- PopupMenu2.Items [4].Free;
- PopupMenu2.Items [3].Free;
- end;
- procedure TFormPopup.Left2Click(Sender: TObject);
- begin
- Label1.Alignment := taLeftJustify;
- (Sender as TMenuItem).Checked := True;
- end;
- procedure TFormPopup.Center2Click(Sender: TObject);
- begin
- Label1.Alignment := taCenter;
- end;
- procedure TFormPopup.Right2Click(Sender: TObject);
- begin
- Label1.Alignment := taRightJustify;
- end;
- procedure TFormPopup.BackColor2Click(Sender: TObject);
- begin
- ColorDialog1.Color := Label3.Color;
- if ColorDialog1.Execute then
- Label3.Color := ColorDialog1.Color;
- end;
- procedure TFormPopup.Label2ContextPopup(Sender: TObject;
- MousePos: TPoint; var Handled: Boolean);
- begin
- ColorDialog1.Color := Label2.Color;
- if ColorDialog1.Execute then
- Label2.Color := ColorDialog1.Color;
- Handled := True;
- end;
- end.