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{
***************************************************************************
* *
* This source is free software; you can redistribute it and/or modify *
* it under the terms of the GNU General Public License as published by *
* the Free Software Foundation; either version 2 of the License, or *
* (at your option) any later version. *
* *
* This code is distributed in the hope that it will be useful, but *
* WITHOUT ANY WARRANTY; without even the implied warranty of *
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU *
* General Public License for more details. *
* *
* A copy of the GNU General Public License is available on the World *
* Wide Web at <http://www.gnu.org/copyleft/gpl.html>. You can also *
* obtain it by writing to the Free Software Foundation, *
* Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. *
* *
***************************************************************************
}
unit AskCompNameDlg;
{$mode objfpc}{$H+}
interface
uses
Classes, SysUtils, LCLProc, FileUtil, Forms, Controls, Graphics,
Dialogs, StdCtrls, ButtonPanel, ExtCtrls, PropEdits, LazarusIDEStrConsts;
type
{ TAskCompNameDialog }
TAskCompNameDialog = class(TForm)
ButtonPanel1: TButtonPanel;
InfoPanel: TPanel;
NameEdit: TEdit;
Label1: TLabel;
procedure FormCreate(Sender: TObject);
procedure NameEditChange(Sender: TObject);
private
FLookupRoot: TComponent;
FNewComponent: TComponent;
function GetNewName: TComponentName;
procedure SetNewName(const AValue: TComponentName);
public
function IsValidName(AName: TComponentName; out ErrorMsg: string): boolean;
property LookupRoot: TComponent read FLookupRoot write FLookupRoot;
property NewName: TComponentName read GetNewName write SetNewName;
property NewComponent: TComponent read FNewComponent write FNewComponent;
end;
function ShowComponentNameDialog(ALookupRoot: TComponent; ANewComponent: TComponent): string;
implementation
{$R *.lfm}
function ShowComponentNameDialog(ALookupRoot: TComponent; ANewComponent: TComponent): string;
begin
with TAskCompNameDialog.Create(nil) do
try
LookupRoot:=ALookupRoot;
NewComponent:=ANewComponent;
NewName:=NewComponent.Name;
Result:=NewComponent.Name; // Default name is the component's current name.
if ShowModal=mrOk then
Result:=NewName;
finally
Free;
end;
end;
{ TAskCompNameDialog }
procedure TAskCompNameDialog.FormCreate(Sender: TObject);
begin
Caption:=lisChooseName;
Label1.Caption:=lisChooseANameForTheComponent;
NameEdit.Hint:=lisTheComponentNameMustBeUniqueInAllComponentsOnTheFo;
ButtonPanel1.OKButton.Caption:=lisOk;
ButtonPanel1.CancelButton.Caption:=lisCancel;
ButtonPanel1.OKButton.Enabled:=false;
end;
procedure TAskCompNameDialog.NameEditChange(Sender: TObject);
var
Ok: boolean;
ErrorMsg: string;
begin
Ok:=IsValidName(NameEdit.Text, ErrorMsg);
ButtonPanel1.OKButton.Enabled:=Ok;
InfoPanel.Caption:=ErrorMsg;
InfoPanel.Visible:=not Ok;
end;
function TAskCompNameDialog.GetNewName: TComponentName;
begin
Result:=NameEdit.Text;
end;
procedure TAskCompNameDialog.SetNewName(const AValue: TComponentName);
begin
NameEdit.Text:=AValue;
NameEditChange(nil);
end;
function TAskCompNameDialog.IsValidName(AName: TComponentName; out
ErrorMsg: string): boolean;
var
ConflictComponent: TComponent;
begin
Result:=false;
if (AName='') then begin
ErrorMsg:=lisEmpty;
exit;
end;
if (not IsValidIdent(AName)) then begin
ErrorMsg:=lisNotAValidPascalIdentifier;
exit;
end;
if (FLookupRoot<>nil) then begin
ConflictComponent:=FLookupRoot.FindComponent(AName);
if (ConflictComponent<>nil)
and (ConflictComponent<>NewComponent) then begin
ErrorMsg:=lisThereIsAlreadyAComponentWithThisName;
exit;
end;
if SysUtils.CompareText(AName,FLookupRoot.Name)=0 then begin
ErrorMsg:=lisTheOwnerHasThisName;
exit;
end;
if SysUtils.CompareText(AName,FLookupRoot.ClassName)=0 then begin
ErrorMsg:=lisTheOwnerClassHasThisName;
exit;
end;
if SysUtils.CompareText(AName,GetClassUnitName(FLookupRoot.ClassType))=0 then begin
ErrorMsg:=lisTheUnitHasThisName;
exit;
end;
end;
ErrorMsg:='';
Result:=true;
end;
end.
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