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96 lines
3.5 KiB
ObjectPascal
96 lines
3.5 KiB
ObjectPascal
{
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***************************************************************************
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* *
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* This source is free software; you can redistribute it and/or modify *
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* it under the terms of the GNU General Public License as published by *
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* the Free Software Foundation; either version 2 of the License, or *
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* (at your option) any later version. *
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* *
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* This code is distributed in the hope that it will be useful, but *
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* WITHOUT ANY WARRANTY; without even the implied warranty of *
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU *
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* General Public License for more details. *
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* *
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* A copy of the GNU General Public License is available on the World *
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* Wide Web at <http://www.gnu.org/copyleft/gpl.html>. You can also *
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* obtain it by writing to the Free Software Foundation, *
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* Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. *
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* *
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***************************************************************************
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Author: Mattias Gaertner
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Abstract:
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JITForm - just-in-time form.
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This unit contains some of the dirtiest hacks in the lazarus IDE.
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Nevertheless they work for year on all platforms and make many things
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much easier.
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Forms are the most common resources/design items in the IDE, hence the name.
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Why the tricks: Of course any TComponent descendant can be edited
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but naming it 'JITComponent' would confuse new developers.
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Because the IDE does wild things with forms and datamodules, like creating
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an own class for each opened form/datamodule and dynamically creating
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methods for it, you can't use some special compiling modes like -pg (gprof)
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with this unit.
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Therefore this unit is kept in a directory of its own.
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}
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unit JITForm;
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{$mode objfpc}{$H+}
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interface
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uses
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Classes, SysUtils, Forms, Controls;
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type
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// TPersistentWithTemplates
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TPersistentWithTemplates = class(TPersistent)
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published
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// the dummy template 'procedure of object' for all events
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procedure DoNothing;
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end;
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TJITClass = class of TPersistent;
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procedure SetComponentDesignMode(AComponent: TComponent; Value: Boolean);
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implementation
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// Define a dummy component to set the csDesigning flag which can not be set
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// by a TForm, because SetDesigning is protected.
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type
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TSetDesigningComponent = class(TComponent)
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public
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class procedure SetDesigningOfComponent(AComponent: TComponent; Value: Boolean);
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end;
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procedure SetComponentDesignMode(AComponent: TComponent; Value: Boolean);
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begin
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TSetDesigningComponent.SetDesigningOfComponent(AComponent,true);
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end;
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{$IFOPT R+}{$DEFINE RangeCheckOn}{$ENDIF}
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class procedure TSetDesigningComponent.SetDesigningOfComponent(
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AComponent: TComponent; Value: Boolean);
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begin
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TSetDesigningComponent(AComponent).SetDesigning(Value);
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end;
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{ TPersistentWithTemplates }
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{$IFOPT S+}{$DEFINE StackCheckOn}{$ENDIF}
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{$R-}
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{$S-}
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procedure TPersistentWithTemplates.DoNothing;
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// this is the template procedure for all events of the designed components
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begin
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// !!! do not write any code in here !!!
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end;
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{$IFDEF RangeCheckOn}{$R+}{$ENDIF}
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{$IFDEF StackCheckOn}{$S+}{$ENDIF}
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end.
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