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Examples: Replace lfm-less ComboBox demo by version with lfm form.

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This commit is contained in:
wp_xyz 2021-12-28 00:48:57 +01:00
parent 718ebb5676
commit 9e67aed7e2
5 changed files with 407 additions and 412 deletions
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73
examples/combobox.lpi
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<?xml version="1.0" encoding="UTF-8"?> <?xml version="1.0" encoding="UTF-8"?>
<CONFIG> <CONFIG>
<ProjectOptions> <ProjectOptions>
<Version Value="10"/> <Version Value="12"/>
<PathDelim Value="\"/>
<General> <General>
<Flags> <Flags>
<SaveOnlyProjectUnits Value="True"/> <CompatibilityMode Value="True"/>
<LRSInOutputDirectory Value="False"/>
</Flags> </Flags>
<MainUnit Value="0"/> <SessionStorage Value="InProjectDir"/>
<Title Value="combobox"/>
<Scaled Value="True"/>
<ResourceType Value="res"/>
<UseXPManifest Value="True"/>
<XPManifest>
<DpiAware Value="True"/>
</XPManifest>
<Icon Value="0"/>
</General> </General>
<BuildModes Count="1"> <BuildModes Count="1">
<Item1 Name="default" Default="True"/> <Item1 Name="Default" Default="True"/>
</BuildModes> </BuildModes>
<PublishOptions> <PublishOptions>
<Version Value="2"/> <Version Value="2"/>
<IgnoreBinaries Value="False"/> <UseFileFilters Value="True"/>
<IncludeFileFilter Value="*.(pas|pp|inc|lfm|lpr|lrs|lpi|lpk|sh|xml)"/>
<ExcludeFileFilter Value="*.(bak|ppu|ppw|o|so);*~;backup"/>
</PublishOptions> </PublishOptions>
<RunParams> <RunParams>
<local> <FormatVersion Value="2"/>
<FormatVersion Value="1"/>
</local>
</RunParams> </RunParams>
<RequiredPackages Count="1"> <RequiredPackages Count="1">
<Item1> <Item1>
<PackageName Value="LCL"/> <PackageName Value="LCL"/>
</Item1> </Item1>
</RequiredPackages> </RequiredPackages>
<Units Count="1"> <Units Count="2">
<Unit0> <Unit0>
<Filename Value="combobox.pp"/> <Filename Value="combobox.lpr"/>
<IsPartOfProject Value="True"/> <IsPartOfProject Value="True"/>
<UnitName Value="ComboBox"/>
<IsVisibleTab Value="True"/>
<TopLine Value="16"/>
<CursorPos X="28" Y="32"/>
<UsageCount Value="20"/>
<Loaded Value="True"/>
<LoadedDesigner Value="True"/>
</Unit0> </Unit0>
<Unit1>
<Filename Value="comboboxfrm.pas"/>
<IsPartOfProject Value="True"/>
<ComponentName Value="Form1"/>
<HasResources Value="True"/>
<ResourceBaseClass Value="Form"/>
<UnitName Value="ComboBoxFrm"/>
</Unit1>
</Units> </Units>
</ProjectOptions> </ProjectOptions>
<CompilerOptions> <CompilerOptions>
<Version Value="11"/> <Version Value="11"/>
<PathDelim Value="\"/>
<Target>
<Filename Value="combobox"/>
</Target>
<SearchPaths>
<IncludeFiles Value="$(ProjOutDir)"/>
<UnitOutputDirectory Value="lib\$(TargetCPU)-$(TargetOS)"/>
</SearchPaths>
<Linking>
<Options>
<Win32>
<GraphicApplication Value="True"/>
</Win32>
</Options>
</Linking>
</CompilerOptions> </CompilerOptions>
<Debugging>
<Exceptions Count="3">
<Item1>
<Name Value="EAbort"/>
</Item1>
<Item2>
<Name Value="ECodetoolError"/>
</Item2>
<Item3>
<Name Value="EFOpenError"/>
</Item3>
</Exceptions>
</Debugging>
</CONFIG> </CONFIG>

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examples/combobox.lpr Normal file
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{
/***************************************************************************
combobox.pp
-------------
Example/test program for combobox usage in lcl
***************************************************************************/
***************************************************************************
* *
* 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., 51 Franklin Street - Fifth Floor, Boston, MA 02110-1335, USA. *
* *
***************************************************************************
}
program combobox;
{$mode objfpc}{$H+}
uses
{$IFDEF UNIX}
cthreads,
{$ENDIF}
{$IFDEF HASAMIGA}
athreads,
{$ENDIF}
Interfaces, // this includes the LCL widgetset
Forms, ComboBoxFrm
{ you can add units after this };
{$R *.res}
begin
RequireDerivedFormResource:=True;
Application.Scaled:=True;
Application.Initialize;
Application.CreateForm(TForm1, Form1);
Application.Run;
end.

392
examples/combobox.pp
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@ -1,392 +0,0 @@
{
/***************************************************************************
combobox.pp
-------------
Example/test program for combobox usage in lcl
***************************************************************************/
***************************************************************************
* *
* 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., 51 Franklin Street - Fifth Floor, Boston, MA 02110-1335, USA. *
* *
***************************************************************************
}
program ComboBox;
{$mode objfpc}{$H+}
uses
Interfaces, Classes, StdCtrls, Forms, Buttons, Menus, ComCtrls,
SysUtils, Extctrls, Controls;
type
TForm1 = class(TFORM)
public
Label1: TLabel;
Label2: TLabel;
Label3: TLabel;
Button1: TButton;
Button2: TButton;
Button3: TButton;
Button4: TButton;
Button5: TButton;
Button6: TButton;
Button7: TButton;
Edit1: TEdit;
mnuMain: TMainMenu;
itmFileQuit: TMenuItem;
itmFile: TMenuItem;
ComboBox1: TComboBox;
ComboBox2: TComboBox;
Memo1: TMemo;
constructor Create(AOwner: TComponent); override;
procedure LoadMainMenu;
procedure FormKill(Sender: TObject);
procedure mnuQuitClicked(Sender: TObject);
protected
procedure Button1CLick(Sender: TObject);
procedure Button2CLick(Sender: TObject);
procedure Button3CLick(Sender: TObject);
procedure Button4CLick(Sender: TObject);
procedure Button5CLick(Sender: TObject);
procedure Button6CLick(Sender: TObject);
procedure Button7CLick(Sender: TObject);
procedure ComboOnChange(Sender: TObject);
procedure ComboOnClick(Sender: TObject);
end;
var
Form1 : TForm1;
constructor TForm1.Create(AOwner: TComponent);
begin
inherited CreateNew(AOwner, 1);
Caption := 'ComboBox Demo v 0.1';
LoadMainMenu;
end;
procedure TForm1.Button1Click(Sender : TObject);
Begin
if assigned (ComboBox1) and assigned (edit1)
then ComboBox1.Text := edit1.text;
End;
procedure TForm1.Button2Click(Sender : TObject);
Begin
{ if assigned (ComboBox1)
then Combobox1.Items.Add ('item ' + IntToStr (comboBox1.Items.Count));
if assigned (ComboBox2)
then Combobox2.Items.Add ('item ' + IntToStr (comboBox2.Items.Count));}
ComboBox1.Items.Add(Edit1.Text);
ComboBox2.Items.Add(Edit1.Text);
End;
procedure TForm1.Button3Click(Sender : TObject);
Begin
if assigned (ComboBox1) and assigned (edit1)
then edit1.Text := ComboBox1.Text;
End;
procedure TForm1.Button4Click(Sender : TObject);
Begin
if assigned (ComboBox1)
then ComboBox1.Enabled := not ComboBox1.Enabled;
End;
procedure TForm1.Button5Click(Sender : TObject);
var
i : integer;
Begin
if assigned (ComboBox1) then
begin
i := 0;
while i < ComboBox1.Items.Count do
begin
if assigned (Memo1)
then Memo1.Lines.Add (ComboBox1.Items[i]);
inc (i);
end;
end;
End;
procedure TForm1.Button6Click(Sender : TObject);
var
s : shortstring;
Begin
if assigned (ComboBox1) then
begin
s := Format ('%x', [ComboBox1.ItemIndex]);
if assigned (Memo1)
then Memo1.Lines.Add (s);
end;
End;
procedure TForm1.Button7Click(Sender : TObject);
begin
Edit1.SelectAll;
ComboBox1.SelectAll;
end;
procedure TForm1.ComboOnChange (Sender:TObject);
var
s : shortstring;
begin
if sender is TEdit
then s := TCOntrol(Sender).name+':TEdit - '
else if sender is TComboBox
then s := TControl(Sender).name+':TComboBox - '
else
s := 'UNKNOWN';
if assigned (Memo1)
then Memo1.Lines.Add (s + 'ONChange');
end;
procedure TForm1.ComboOnClick (Sender:TObject);
begin
if assigned (Memo1)
then Memo1.Lines.Add ('ONClick');
end;
{------------------------------------------------------------------------------}
procedure TForm1.FormKill(Sender : TObject);
Begin
End;
{------------------------------------------------------------------------------}
procedure TForm1.LoadMainMenu;
begin
OnDestroy := @FormKill;
{ set the height and width }
Height := 350;
Width := 700;
{ Create 2 buttons inside the groupbox }
Button2 := TButton.Create(Self);
Button2.Parent := Self;
Button2.Left := 50;
Button2.Top := 40;
Button2.Width := 120;
Button2.Height := 30;
Button2.Show;
Button2.Caption := 'Add item';
Button2.OnClick := @Button2Click;
Button1 := TButton.Create(Self);
Button1.Parent := Self;
Button1.Left := 50;
Button1.Top := 80;
Button1.Width := 120;
Button1.Height := 30;
Button1.Show;
Button1.Caption := 'Edit->Combo';
Button1.OnClick := @Button1Click;
{ Create 2 more buttons outside the groupbox }
Button3 := TButton.Create(Self);
Button3.Parent := Self;
Button3.Left := 50;
Button3.Top := 120;
Button3.Width := 120;
Button3.Height := 30;
Button3.Show;
Button3.Caption := 'Combo->Edit';
Button3.OnClick := @Button3Click;
Button4 := TButton.Create(Self);
Button4.Parent := Self;
Button4.Left := 50;
Button4.Top := 160;
Button4.Width := 120;
Button4.Height := 30;
Button4.Show;
Button4.Caption := 'Enabled On/Off';
Button4.OnClick := @Button4Click;
Button5 := TButton.Create(Self);
Button5.Parent := Self;
Button5.Left := 50;
Button5.Top := 200;
Button5.Width := 120;
Button5.Height := 30;
Button5.Show;
Button5.Caption := 'Dump';
Button5.OnClick := @Button5Click;
Button6 := TButton.Create(Self);
Button6.Parent := Self;
Button6.Left := 50;
Button6.Top := 240;
Button6.Width := 120;
Button6.Height := 30;
Button6.Show;
Button6.Caption := 'Index ?';
Button6.OnClick := @Button6Click;
Button7 := TButton.Create(Self);
Button7.Parent := Self;
Button7.Left := 50;
Button7.Top := 280;
Button7.Width := 120;
Button7.Height := 30;
Button7.Show;
Button7.Caption := 'Select All';
Button7.OnClick := @Button7Click;
{ Create a label for the edit field }
label1 := TLabel.Create(Self);
label1.Parent := self;
label1.top := 50;
label1.left := 320;
label1.Height := 20;
label1.Width := 130;
label1.Show;
label1.Caption := 'TEdit :';
Edit1 := TEdit.Create (self);
with Edit1 do
begin
Parent := self;
Left := 500;
Top := 50;
Width := 70;
Height := 20;
OnChange := @ComboOnChange;
OnClick := @ComboOnClick;
Name := 'Edit1';
Show;
end;
{ Create a label for the 1st combobox }
label2 := TLabel.Create(Self);
label2.Parent := self;
label2.top := 100;
label2.left := 320;
label2.Height := 20;
label2.Width := 130;
label2.Enabled:= true;
label2.Show;
label2.Caption := 'Combo (unsorted)';
label2.Enabled:= true;
{ Create the menu now }
{ WARNING: If you do it after creation of the combo, the menu will not
appear. Reason is unknown by now!!!!!!}
mnuMain := TMainMenu.Create(Self);
Menu := mnuMain;
itmFile := TMenuItem.Create(Self);
itmFile.Caption := '&File';
mnuMain.Items.Add(itmFile);
itmFileQuit := TMenuItem.Create(Self);
itmFileQuit.Caption := '&Quit';
itmFileQuit.OnClick := @mnuQuitClicked;
itmFile.Add(itmFileQuit);
ComboBox1 := TComboBox.Create (self);
with ComboBox1 do
begin
Parent := self;
Left := 500;
Top := 100;
Width := 170;
Height := 20;
Style := csDropDown;
Items.Add ('wohhh!');
Items.Add ('22222!');
ItemIndex := 1;
Items.Add ('33333!');
Items.Add ('abcde!');
OnChange := @ComboOnChange;
OnClick := @ComboOnClick;
Name := 'ComboBox1';
Show;
end;
{ Create a label for the 2nd combobox }
label3 := TLabel.Create(Self);
label3.Parent := self;
label3.top := 150;
label3.left := 320;
label3.Height := 20;
label3.Width := 130;
label3.Show;
label3.Caption := 'Combo (sorted)';
ComboBox2 := TComboBox.Create (self);
with ComboBox2 do
begin
Parent := self;
Left := 500;
Top := 150;
Width := 170;
Height := 20;
Style := csDropDownList;
Items.Add ('wohhh!');
Items.Add ('22222!');
ItemIndex := 1;
Items.Add ('33333!');
Items.Add ('abcde!');
Name := 'ComboBox2';
OnChange := @ComboOnChange;
OnClick := @ComboOnClick;
Sorted := true;
Show;
end;
Memo1 := TMemo.Create(Self);
with Memo1 do
begin
Parent := Self;
Scrollbars := ssBoth;
Left := 200;
Top := 200;
Width := 335;
Height := 155;
Show;
end;
end;
{------------------------------------------------------------------------------}
procedure TForm1.mnuQuitClicked(Sender : TObject);
begin
Close;
end;
{------------------------------------------------------------------------------}
begin
Application.Initialize; { calls InitProcedure which starts up GTK }
Application.CreateForm(TForm1, Form1);
Application.Run;
end.

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object Form1: TForm1
Left = 270
Height = 423
Top = 131
Width = 714
Caption = 'ComboBox Demo v0.2'
ClientHeight = 403
ClientWidth = 714
Menu = mnuMain
LCLVersion = '2.3.0.0'
object Button2: TButton
Left = 50
Height = 30
Top = 40
Width = 120
Caption = 'Add item'
OnClick = Button2Click
TabOrder = 0
end
object Button1: TButton
Left = 50
Height = 30
Top = 80
Width = 120
Caption = 'Edit -> Combo'
OnClick = Button1Click
TabOrder = 1
end
object Button3: TButton
Left = 50
Height = 30
Top = 120
Width = 120
Caption = 'Combo -> Edit'
OnClick = Button3Click
TabOrder = 2
end
object Button4: TButton
Left = 50
Height = 30
Top = 160
Width = 120
Caption = 'Enabled On/Off'
OnClick = Button4Click
TabOrder = 3
end
object Button5: TButton
Left = 50
Height = 30
Top = 200
Width = 120
Caption = 'Dump'
OnClick = Button5Click
TabOrder = 4
end
object Button6: TButton
Left = 50
Height = 30
Top = 240
Width = 120
Caption = 'Index ?'
OnClick = Button6Click
TabOrder = 5
end
object Button7: TButton
Left = 49
Height = 30
Top = 280
Width = 120
Caption = 'Select All'
OnClick = Button7Click
TabOrder = 6
end
object Label1: TLabel
Left = 320
Height = 15
Top = 50
Width = 29
Caption = 'TEdit:'
end
object Edit1: TEdit
Left = 500
Height = 23
Top = 50
Width = 70
OnChange = ComboOnChange
OnClick = ComboOnClick
TabOrder = 7
Text = 'Edit1'
end
object Label2: TLabel
Left = 320
Height = 15
Top = 100
Width = 101
Caption = 'Combo (unsorted):'
end
object ComboBox1: TComboBox
Left = 500
Height = 23
Top = 100
Width = 170
ItemHeight = 15
ItemIndex = 1
Items.Strings = (
'wohh!'
'22222!'
'33333!'
'abcde!'
)
OnChange = ComboOnChange
OnClick = ComboOnClick
TabOrder = 8
Text = '22222!'
end
object Label3: TLabel
Left = 320
Height = 15
Top = 150
Width = 87
Caption = 'Combo (sorted):'
end
object ComboBox2: TComboBox
Left = 500
Height = 23
Top = 150
Width = 170
ItemHeight = 15
ItemIndex = 1
Items.Strings = (
'22222!'
'33333!'
'abcde!'
'wohhh!'
)
Sorted = True
Style = csDropDownList
TabOrder = 9
Text = '33333!'
end
object Memo1: TMemo
Left = 235
Height = 176
Top = 200
Width = 435
ScrollBars = ssBoth
TabOrder = 10
end
object mnuMain: TMainMenu
Left = 242
Top = 75
object itmFile: TMenuItem
Caption = '&File'
object itmFileQuit: TMenuItem
Caption = '&Quit'
OnClick = itmFileQuitClick
end
end
end
end

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unit ComboBoxFrm;
{$mode objfpc}{$H+}
interface
uses
Classes, SysUtils, Forms, Controls, Graphics, Dialogs, StdCtrls, Menus;
type
{ TForm1 }
TForm1 = class(TForm)
Button1: TButton;
Button2: TButton;
Button3: TButton;
Button4: TButton;
Button5: TButton;
Button6: TButton;
Button7: TButton;
ComboBox1: TComboBox;
ComboBox2: TComboBox;
Edit1: TEdit;
Label1: TLabel;
Label2: TLabel;
Label3: TLabel;
itmFile: TMenuItem;
itmFileQuit: TMenuItem;
mnuMain: TMainMenu;
Memo1: TMemo;
procedure Button1Click(Sender: TObject);
procedure Button2Click(Sender: TObject);
procedure Button3Click(Sender: TObject);
procedure Button4Click(Sender: TObject);
procedure Button5Click(Sender: TObject);
procedure Button6Click(Sender: TObject);
procedure Button7Click(Sender: TObject);
procedure ComboOnChange(Sender: TObject);
procedure ComboOnClick(Sender: TObject);
procedure itmFileQuitClick(Sender: TObject);
private
public
end;
var
Form1: TForm1;
implementation
{$R *.lfm}
{ TForm1 }
procedure TForm1.Button1Click(Sender: TObject);
begin
if Assigned(ComboBox1) and Assigned(Edit1) then
ComboBox1.Text := Edit1.Text;
end;
procedure TForm1.Button2Click(Sender: TObject);
begin
ComboBox1.Items.Add(Edit1.Text);
ComboBox2.Items.Add(Edit1.Text);
end;
procedure TForm1.Button3Click(Sender: TObject);
begin
if Assigned(ComboBox1) and Assigned(Edit1) then
Edit1.Text := ComboBox1.Text;
end;
procedure TForm1.Button4Click(Sender: TObject);
begin
if Assigned(ComboBox1) then
ComboBox1.Enabled := not ComboBox1.Enabled;
end;
procedure TForm1.Button5Click(Sender: TObject);
var
i: integer;
begin
if Assigned(ComboBox1) then
begin
i := 0;
while i < ComboBox1.Items.Count do
begin
if Assigned(Memo1) then
Memo1.Lines.Add(ComboBox1.Items[i]);
inc (i);
end;
end;
end;
procedure TForm1.Button6Click(Sender: TObject);
var
s: string;
begin
if Assigned(ComboBox1) then
begin
s := Format ('%x', [ComboBox1.ItemIndex]);
if Assigned(Memo1) then
Memo1.Lines.Add (s);
end;
end;
procedure TForm1.Button7Click(Sender: TObject);
begin
Edit1.SelectAll;
ComboBox1.SelectAll;
end;
procedure TForm1.ComboOnChange(Sender: TObject);
var
s: string;
begin
if Sender is TEdit then
s := TControl(Sender).Name + ':TEdit - '
else if Sender is TComboBox then
s := TControl(Sender).Name + ':TComboBox - '
else
s := 'UNKNOWN';
if Assigned(Memo1) then
Memo1.Lines.Add(s + 'OnChange');
end;
procedure TForm1.ComboOnClick(Sender: TObject);
begin
if Assigned(Memo1) then
Memo1.Lines.Add('OnClick');
end;
procedure TForm1.itmFileQuitClick(Sender: TObject);
begin
Close;
end;
end.