david
7ebea5ffa7
git-svn-id: https://192.168.0.254/svn/Componentes.Terceros.jvcl@12 7f62d464-2af8-f54e-996c-e91b33f51cbe
88 lines
2.3 KiB
ObjectPascal
88 lines
2.3 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 fJvLineNumbersMain;
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interface
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uses
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Windows, Messages, SysUtils, Classes, Graphics, Controls, Forms, Dialogs,
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ExtCtrls, JvEditor, JvHLEditor, StdCtrls, JvExControls, JvComponent;
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type
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TJvLineNumbersMain = class(TForm)
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Panel1: TPanel;
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GutterFont: TLabel;
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JvHLEditor1: TJvEditor;
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Button1: TButton;
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OpenDialog1: TOpenDialog;
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procedure JvHLEditor1PaintGutter(Sender: TObject; Canvas: TCanvas);
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procedure Button1Click(Sender: TObject);
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private
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{ Private declarations }
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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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LineNumbersMain: TJvLineNumbersMain;
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implementation
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{$R *.DFM}
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procedure TJvLineNumbersMain.JvHLEditor1PaintGutter(Sender: TObject;
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Canvas: TCanvas);
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var
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i: integer;
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Rect: TRect;
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oldFont: TFont;
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begin
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oldFont := TFont.Create;
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try
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oldFont.Assign(Canvas.Font);
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Canvas.Font := GutterFont.Font;
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with JvHLEditor1 do
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for i := TopRow to TopRow + VisibleRowCount do
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begin
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Rect := Bounds(2, (i - TopRow) * CellRect.Height, GutterWidth - 2 - 5, CellRect.Height);
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DrawText(Canvas.Handle, PChar(IntToStr(i + 1)), -1, Rect, DT_RIGHT or DT_VCENTER or DT_SINGLELINE);
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end;
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finally
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Canvas.Font := oldFont;
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oldFont.Free;
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end;
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end;
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procedure TJvLineNumbersMain.Button1Click(Sender: TObject);
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begin
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if OpenDialog1.Execute then
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JVHLEditor1.Lines.LoadFromFile(OpenDialog1.Filename);
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end;
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end.
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