90 lines
2.7 KiB
ObjectPascal
90 lines
2.7 KiB
ObjectPascal
{******************************************************************
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JEDI-VCL Demo
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Copyright (C) 2002 Project JEDI
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Original author:
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Contributor(s):
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You may retrieve the latest version of this file at the JEDI-JVCL
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home page, located at http://jvcl.sourceforge.net
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The contents of this file are used with permission, subject to
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the Mozilla Public License Version 1.1 (the "License"); you may
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not use this file except in compliance with the License. You may
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obtain a copy of the License at
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http://www.mozilla.org/MPL/MPL-1_1Final.html
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Software distributed under the License is distributed on an
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"AS IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
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implied. See the License for the specific language governing
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rights and limitations under the License.
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******************************************************************}
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unit PersistForm;
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interface
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uses
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Windows, Messages, SysUtils, Classes, Graphics, Controls, Forms, Dialogs, PersistSettings;
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type
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// base form to inherit from if you want your forms size and position to be saved automatically
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TfrmPersistable = class(TForm, IUnknown, IPersistSettings)
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private
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{ Private declarations }
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protected
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procedure Load(Storage: TPersistStorage); virtual;
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procedure Save(Storage: TPersistStorage); virtual;
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public
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{ Public declarations }
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end;
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var
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frmPersistable: TfrmPersistable;
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implementation
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{$R *.DFM}
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{ TfrmPersistable }
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procedure TfrmPersistable.Load(Storage: TPersistStorage);
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begin
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if Position in [poDesigned, poDefault, poDefaultSizeOnly, poDefaultPosOnly] then
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begin
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Top := Storage.ReadInteger(ClassName, 'Top', (Screen.Height - ClientHeight) div 2);
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Left := Storage.ReadInteger(ClassName, 'Left', (Screen.Width - ClientWidth) div 2);
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end;
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if BorderStyle in [bsSizeable, bsSizeToolWin] then
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begin
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Width := Storage.ReadInteger(ClassName, 'Width', Width);
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Height := Storage.ReadInteger(ClassName, 'Height', Height);
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end;
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WindowState := TWindowState(Storage.ReadInteger(ClassName, 'WindowState',Ord(WindowState)));
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end;
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procedure TfrmPersistable.Save(Storage: TPersistStorage);
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begin
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if not IsZoomed(Handle) and not IsIconic(Application.Handle) then
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begin
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if Position in [poDesigned, poDefault, poDefaultSizeOnly, poDefaultPosOnly] then
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begin
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Storage.WriteInteger(ClassName, 'Top', Top);
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Storage.WriteInteger(ClassName, 'Left', Left);
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end;
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if (BorderStyle in [bsSizeable, bsSizeToolWin]) then
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begin
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Storage.WriteInteger(ClassName, 'Width', Width);
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Storage.WriteInteger(ClassName, 'Height', Height);
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end;
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end;
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Storage.WriteInteger(ClassName, 'WindowState',Ord(WindowState));
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end;
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end.
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