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end.
unit D7LabelEdit
{$S-,W-,R-,H+,X+}
{$C PRELOAD}
interface
{$IFDEF LINUX}
uses Messages, WinUtils, Windows, SysUtils, Classes,
Controls, Forms, Menus, Graphics, StdCtrls;
{$ENDIF}
{$IFDEF MSWINDOWS}
uses Messages, Windows, SysUtils, Classes,
Controls, Forms, Menus, Graphics, StdCtrls;
{$ENDIF}
type
TCustomLabeledEdit = class(TCustomEdit)
private
FEditLabel: TBoundLabel;
FLabelPosition: TLabelPosition;
FLabelSpacing: Integer;
procedure SetLabelPosition(const Value: TLabelPosition);
procedure SetLabelSpacing(const Value: Integer);
protected
procedure SetParent(AParent: TWinControl); override;
procedure Notification(AComponent: TComponent; Operation: TOperation); override;
procedure SetName(const Value: TComponentName); override;
procedure CMVisiblechanged(var Message: TMessage);
message CM_VISIBLECHANGED;
procedure CMEnabledchanged(var Message: TMessage);
message CM_ENABLEDCHANGED;
procedure CMBidimodechanged(var Message: TMessage);
message CM_BIDIMODECHANGED;
public
{ Public declarations }
constructor Create(AOwner: TComponent); override;
procedure SetBounds(ALeft: Integer; ATop: Integer; AWidth: Integer; AHeight: Integer); override;
procedure SetupInternalLabel;
property EditLabel: TBoundLabel read FEditLabel;
property LabelPosition: TLabelPosition read FLabelPosition write SetLabelPosition;
property LabelSpacing: Integer read FLabelSpacing write SetLabelSpacing;
end;
{ TLabeledEdit }
TLabeledEdit = class(TCustomLabeledEdit)
published
property Anchors;
property AutoSelect;
property AutoSize;
property BevelEdges;
property BevelInner;
property BevelKind;
property BevelOuter;
property BiDiMode;
property BorderStyle;
property CharCase;
property Color;
property Constraints;
property Ctl3D;
property DragCursor;
property DragKind;
property DragMode;
property EditLabel;
property Enabled;
property Font;
property HideSelection;
property ImeMode;
property ImeName;
property LabelPosition default lpAbove;
property LabelSpacing default 3;
property MaxLength;
property OEMConvert;
property ParentBiDiMode;
property ParentColor;
property ParentCtl3D;
property ParentFont;
property ParentShowHint;
property PasswordChar;
property PopupMenu;
property ReadOnly;
property ShowHint;
property TabOrder;
property TabStop;
property Text;
property Visible;
property OnChange;
property OnClick;
property OnContextPopup;
property OnDblClick;
property OnDragDrop;
property OnDragOver;
property OnEndDock;
property OnEndDrag;
property OnEnter;
property OnExit;
property OnKeyDown;
property OnKeyPress;
property OnKeyUp;
property OnMouseDown;
property OnMouseMove;
property OnMouseUp;
property OnStartDock;
property OnStartDrag;
end;
procedure register;
implementation
procedure register;
begin
RegisterComponents('D7LabelEdit', [TLabeledEdit]);
end;
{ TCustomLabeledEdit }
constructor TCustomLabeledEdit.Create(AOwner: TComponent);
begin
inherited Create(AOwner);
FLabelPosition := lpAbove;
FLabelSpacing := 3;
SetupInternalLabel;
end;
procedure TCustomLabeledEdit.CMBidimodechanged(var Message: TMessage);
begin
inherited;
FEditLabel.BiDiMode := BiDiMode;
end;
procedure TCustomLabeledEdit.CMEnabledchanged(var Message: TMessage);
begin
inherited;
FEditLabel.Enabled := Enabled;
end;
procedure TCustomLabeledEdit.CMVisiblechanged(var Message: TMessage);
begin
inherited;
FEditLabel.Visible := Visible;
end;
procedure TCustomLabeledEdit.Notification(AComponent: TComponent;
Operation: TOperation);
begin
inherited Notification(AComponent, Operation);
if (AComponent = FEditLabel) and (Operation = opRemove) then
FEditLabel := nil;
end;
procedure TCustomLabeledEdit.SetBounds(ALeft, ATop, AWidth, AHeight: Integer);
begin
inherited SetBounds(ALeft, ATop, AWidth, AHeight);
SetLabelPosition(FLabelPosition);
end;
procedure TCustomLabeledEdit.SetLabelPosition(const Value: TLabelPosition);
var
P: TPoint;
begin
if FEditLabel = nil then exit;
FLabelPosition := Value;
case Value of
lpAbove: P := Point(Left, Top - FEditLabel.Height - FLabelSpacing);
lpBelow: P := Point(Left, Top + Height + FLabelSpacing);
lpLeft : P := Point(Left - FEditLabel.Width - FLabelSpacing,
Top + ((Height - FEditLabel.Height) div 2));
lpRight: P := Point(Left + Width + FLabelSpacing,
Top + ((Height - FEditLabel.Height) div 2));
end;
FEditLabel.SetBounds(P.x, P.y, FEditLabel.Width, FEditLabel.Height);
end;
procedure TCustomLabeledEdit.SetLabelSpacing(const Value: Integer);
begin
FLabelSpacing := Value;
SetLabelPosition(FLabelPosition);
end;
procedure TCustomLabeledEdit.SetName(const Value: TComponentName);
begin
if (csDesigning in ComponentState) and ((FEditlabel.GetTextLen = 0) or
(CompareText(FEditLabel.Caption, Name) = 0)) then
FEditLabel.Caption := Value;
inherited SetName(Value);
if csDesigning in ComponentState then
Text := '';
end;
procedure TCustomLabeledEdit.SetParent(AParent: TWinControl);
begin
inherited SetParent(AParent);
if FEditLabel = nil then exit;
FEditLabel.Parent := AParent;
FEditLabel.Visible := True;
end;
procedure TCustomLabeledEdit.SetupInternalLabel;
begin
if Assigned(FEditLabel) then exit;
FEditLabel := TBoundLabel.Create(Self);
FEditLabel.FreeNotification(Self);
FEditLabel.FocusControl := Self;
end;