mirror of
https://gitlab.com/freepascal.org/lazarus/lazarus.git
synced 2025-11-04 11:24:40 +01:00
420 lines
11 KiB
ObjectPascal
420 lines
11 KiB
ObjectPascal
{
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/***************************************************************************
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checkbox.pp
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-----------
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Sample for Lazarus Checkbox.
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Initial Revision : Wed Dec 29 23:15:32 CST 1999
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***************************************************************************/
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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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}
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program CheckBox;
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{$mode objfpc}{$H+}
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// program uses WriteLn
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uses
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Interfaces, Classes, Stdctrls, Forms, Buttons, Menus, Comctrls,
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SysUtils, ExtCtrls, GraphType, Graphics, Controls;
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type
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TForm1 = class(TFORM)
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public
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Button2: TButton;
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Button3: TButton;
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Button11, Button12, Button13 : TSpeedButton;
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Panel1: TPanel;
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mnuMain: TMainMenu;
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itmFileQuit: TMenuItem;
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itmFile: TMenuItem;
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CheckBox1 : TCheckBox;
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RadioButton : TRadioButton;
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RadioButton2 : TRadioButton;
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RadioButton3 : TRadioButton;
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RadioGroup : TRadioGroup;
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RadioGroup2 : TRadioGroup;
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ToggleBox : TToggleBox;
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label1 : TLabel;
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label2 : TLabel;
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constructor Create(AOwner: TComponent); override;
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procedure LoadMainMenu;
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Procedure FormKill(Sender : TObject);
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procedure mnuQuitClicked(Sender : TObject);
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protected
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procedure Button1CLick(Sender : TObject);
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procedure Button2CLick(Sender : TObject);
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procedure Button3CLick(Sender : TObject);
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procedure Button4CLick(Sender : TObject);
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procedure CheckBoxClick(Sender : TObject);
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procedure RadioButtonClick(Sender : TObject);
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procedure RadioGroupClick(Sender : TObject);
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procedure ToggleBoxClick(Sender : TObject);
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end;
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var
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Form1 : TForm1;
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constructor TForm1.Create(AOwner: TComponent);
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begin
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inherited CreateNew(AOwner, 1);
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Caption := 'CheckBox Demo V.02';
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LoadMainMenu;
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end;
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procedure TForm1.Button1Click(Sender : TObject);
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Begin
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End;
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procedure TForm1.Button2Click(Sender : TObject);
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Begin
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if assigned (CheckBox1) then
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begin
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CheckBox1.Checked := not CheckBox1.Checked;
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end;
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Panel1.Caption:= 'Changed';
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End;
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procedure TForm1.Button3Click(Sender : TObject);
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var
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i : integer;
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Begin
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if assigned (RadioGroup) then
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begin
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i := RadioGroup.ItemIndex;
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if i < RadioGroup.Items.Count -1
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then RadioGroup.ItemIndex := i + 1
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else RadioGroup.ItemIndex := 0
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end;
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if assigned (RadioGroup2) then
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begin
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i := RadioGroup2.ItemIndex;
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if i < RadioGroup2.Items.Count -1
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then RadioGroup2.ItemIndex := i + 1
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else RadioGroup2.ItemIndex := 0
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end;
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End;
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procedure TForm1.Button4Click(Sender : TObject);
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Begin
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End;
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procedure TForm1.CheckBoxClick(Sender : TObject);
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Begin
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WriteLn('[TForm1.CheckBoxClick]');
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if assigned (CheckBox1) and assigned (label1) then begin
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Writeln (' [checkbox and label assigned]');
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if CheckBox1.Checked
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then label1.Caption := 'checked'
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else label1.Caption := 'unchecked';
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// ***SIGSEGV!!!!!!!!! label1.Repaint;
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if CheckBox1.Checked
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then CheckBox1.Caption := 'new caption'
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else CheckBox1.Caption := 'Checkbox 1';
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end;
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End;
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procedure TForm1.RadioButtonClick(Sender : TObject);
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begin
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WriteLn('[TForm1.RadioButtonClick]');
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if assigned (label2)
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then label2.Caption := 'active: ' + TRadioButton (Sender).Caption
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end;
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procedure TForm1.RadioGroupClick(Sender : TObject);
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begin
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WriteLn('[TForm1.RadioGroupClick]');
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end;
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procedure TForm1.ToggleBoxClick(Sender : TObject);
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begin
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WriteLn('[TForm1.ToggleBoxClick]');
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if assigned (ToggleBox) then
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begin
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if ToggleBox.checked
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then ToggleBox.Caption := 'Togglebox1'
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else ToggleBox.Caption := 'does nothing:-(';
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// ***SIGSEGV!!!!!!!!! ToggleBox.RePaint;
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end;
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end;
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{------------------------------------------------------------------------------}
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procedure TForm1.FormKill(Sender : TObject);
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Begin
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End;
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{------------------------------------------------------------------------------}
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procedure TForm1.LoadMainMenu;
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var
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BtnGlyph: TPortableNetworkGraphic;
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begin
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OnDestroy := @FormKill;
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{ set the height and width }
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Height := 450;
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Width := 700;
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{ Create a checkbox }
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CheckBox1 := TCheckBox.Create(Self);
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CheckBox1.Parent := self;
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CheckBox1.top := 35;
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CheckBox1.left := 10;
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CheckBox1.Height :=20;
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CheckBox1.Width := 200;
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CheckBox1.OnCLick := @CheckBoxClick;
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CheckBox1.Show;
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CheckBox1.Caption := 'Checkbox 1';
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{ Create a label which shows the state checked/unchecked of the checkbox}
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label1 := TLabel.Create(Self);
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label1.Parent := self;
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label1.top := 35;
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label1.left := 220;
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label1.Height :=20;
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label1.Width := 100;
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label1.Show;
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label1.Caption := 'unchecked';
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{ Sample panel here }
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Panel1:= TPanel.Create(Self);
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with Panel1 do begin
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Parent := Self;
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Left := 320;
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Top := 60;
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Width := 280;
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Height := 81;
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Alignment:= taRightJustify;
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BevelInner:= bvLowered;
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BevelOuter:= bvRaised;
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BorderWidth:= 4;
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BevelWidth:= 4;
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Show;
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Caption:= 'Hello world';
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end;
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{ Create a button which toggles the checkbox }
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Button2 := TButton.Create(Self);
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Button2.Parent := Panel1;
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Button2.Left := 5;
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Button2.Top := 45;
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Button2.Width := 180;
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Button2.Height := 20;
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Button2.Show;
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Button2.Caption := 'Toggle checkbox';
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Button2.OnClick := @Button2Click;
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Button11 := TSpeedButton.Create(Self);
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Button11.GroupIndex:= 1;
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Button11.Layout:= blGlyphTop;
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// Button11.Caption:= 'Option 1';
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Button11.Parent := Self;
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Button11.Left := 5;
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Button11.Top := 5;
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Button11.Width:= 45;
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Button11.Height:= 55;
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Button11.Flat:= true;
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BtnGlyph := TPortableNetworkGraphic.Create;
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try
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BtnGlyph.LoadFromFile('../images/items/item_form.png');
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Button11.Glyph.Assign(BtnGlyph);
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finally
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BtnGlyph.Free;
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end;
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// Button11.Spacing:= -1;
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// Button11.Margin:= 4;
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Button11.Visible:= true;
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Button12 := TSpeedButton.Create(Self);
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Button12.GroupIndex:= 1;
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Button12.Caption:= '2';
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Button12.Parent := Self;
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Button12.Left := 55;
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Button12.Top := 5;
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// Button12.Flat:= true;
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Button12.Visible:= true;
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Button13 := TSpeedButton.Create(Self);
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Button13.GroupIndex:= 1;
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Button13.Caption:= '3';
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Button13.Parent := Self;
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Button13.Left := 95;
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Button13.Top := 5;
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Button13.Flat:= true;
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Button13.AllowAllUp:= true;
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Button13.Visible:= true;
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{ Create a label which shows the caption of the active radiobutton }
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label2 := TLabel.Create(Self);
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label2.Parent := self;
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label2.top := 90;
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label2.left := 220;
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label2.Height :=20;
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label2.Width := 200;
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label2.Show;
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label2.Caption := 'active: unknown';
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{ Create a radio button }
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RadioButton := TRadioButton.Create(Self);
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RadioButton.Parent := self;
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RadioButton.top := 70;
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RadioButton.left := 10;
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RadioButton.Height :=20;
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RadioButton.Width := 200;
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RadioButton.OnCLick := @RadioButtonClick;
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RadioButton.Checked := false;
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RadioButton.Show;
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RadioButton.Caption := 'Radio button 1';
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{ Create a 2nd radiobutton }
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RadioButton2 := TRadioButton.Create(Self);
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with RadioButton2 do
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begin
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Parent := self;
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top := 90;
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left := 10;
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Height :=20;
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Width := 200;
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OnCLick := @RadioButtonClick;
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Checked := true;
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Show;
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Caption := 'Radiobutton 2'
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end;
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{ Create a 3rd radiobutton }
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RadioButton3 := TRadioButton.Create(Self);
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with RadioButton3 do
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begin
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Parent := self;
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top := 110;
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left := 10;
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Height :=20;
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Width := 200;
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OnCLick := @RadioButtonClick;
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Checked := false;
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Show;
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Caption := 'Radiobutton 3'
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end;
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{ Create a radiogroup }
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RadioGroup := TRadioGroup.Create(Self);
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with RadioGroup do
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begin
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Parent := self;
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top := 200;
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left := 10;
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Height :=200;
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Width := 150;
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OnCLick := @RadioGroupClick;
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RadioGroup.Items.Add ('No 1');
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RadioGroup.Items.Add ('No 2');
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RadioGroup.Items.Add ('No 3');
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RadioGroup.Items.Add ('No 4');
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RadioGroup.Items.Add ('No 5');
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RadioGroup.Items.Add ('No 6');
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ItemIndex := 3;
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Show;
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Caption := 'Radiogroup';
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end;
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{ Create a button which does mystic things with the radiogroup }
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Button3 := TButton.Create(Self);
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Button3.Parent := Self;
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Button3.Left := 220;
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Button3.Top := 220;
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Button3.Width := 180;
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Button3.Height := 30;
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Button3.Show;
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Button3.Caption := 'Mystic Radiogroups';
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Button3.OnClick := @Button3Click;
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{ Create a radiogroup }
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RadioGroup2 := TRadioGroup.Create(Self);
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with RadioGroup2 do
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begin
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Parent := self;
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top := 300;
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left := 220;
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Height := 100;
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Width := 300;
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Columns := 3;
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Items.Add ('No 1');
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Items.Add ('No 2');
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Items.Add ('No 3');
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Items.Add ('No 4');
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Items.Add ('No 5');
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Items.Add ('No 6');
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ItemIndex := 1;
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Show;
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Caption := '3 columns';
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end;
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{ Create a togglebox }
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ToggleBox := TToggleBox.Create(Self);
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with ToggleBox do
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begin
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Parent := self;
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top := 150;
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left := 10;
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Height :=30;
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Width := 240;
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OnCLick := @ToggleBoxClick;
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Show;
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Caption := 'ToggleBox 1'
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end;
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mnuMain := TMainMenu.Create(Self);
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Menu := mnuMain;
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itmFile := TMenuItem.Create(Self);
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itmFile.Caption := 'File';
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mnuMain.Items.Add(itmFile);
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itmFileQuit := TMenuItem.Create(Self);
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itmFileQuit.Caption := 'Quit';
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itmFileQuit.OnClick := @mnuQuitClicked;
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itmFile.Add(itmFileQuit);
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end;
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{------------------------------------------------------------------------------}
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procedure TForm1.mnuQuitClicked(Sender : TObject);
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begin
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Close;
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end;
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{------------------------------------------------------------------------------}
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begin
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Application.Initialize; { calls InitProcedure which starts up GTK }
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Application.CreateForm(TForm1, Form1);
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Application.Run;
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end.
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