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program listviewtest;
{$mode objfpc}{$H+}
uses
Classes, sysutils,
fpg_base, fpg_main, fpg_listview, fpg_form, fpg_button, fpg_edit, fpg_checkbox;
type
TMainForm = class(TfpgForm)
private
FEdit: TfpgEdit;
FAddButton: TfpgButton;
FListView: TfpgListView;
FTmpListView: TfpgListView;
FQuitButton: TfpgButton;
FCheck: TfpgCheckBox;
procedure CloseBttn(Sender: TObject);
procedure AddBttn(Sender: TObject);
procedure ShowHeadersChange(Sender: TObject);
procedure PaintItem(ListView: TfpgListView; ACanvas: TfpgCanvas; Item: TfpgLVItem;
ItemIndex: Integer; Area:TfpgRect; var PaintPart: TfpgLVItemPaintPart);
procedure ItemSelectionChanged(ListView: TfpgListView; Item: TfpgLVItem;
ItemIndex: Integer; Selected: Boolean);
public
constructor Create(AOwner: TComponent); override;
end;
{ TMainForm }
procedure TMainForm.CloseBttn(Sender: TObject);
begin
Close;
end;
procedure TMainForm.AddBttn(Sender: TObject);
var
Item: TfpgLVItem;
begin
FListView.BeginUpdate;
FTmpListView.BeginUpdate;
//FListView.Items.Capacity := FListView.Items.Capacity + 2000000;
//for I := 0 to 1999999 do begin
Item := FListView.ItemAdd;
Item.Caption := FEdit.Text + IntToStr(FListView.Items.Count);
Item.SubItems.Add('c0');
Item.SubItems.Add('c1');
Item.SubItems.Add('c2');
Item.SubItems.Add('c3');
Item.SubItems.Add('c4');
//end;
FListView.EndUpdate;
FTmpListView.EndUpdate;
end;
procedure TMainForm.ShowHeadersChange(Sender: TObject);
begin
FListView.ShowHeaders := TfpgCheckBox(Sender).Checked;
end;
procedure TMainForm.PaintItem(ListView: TfpgListView; ACanvas: TfpgCanvas;
Item: TfpgLVItem; ItemIndex: Integer; Area: TfpgRect; var PaintPart: TfpgLVItemPaintPart);
begin
if ItemIndex mod 2 = 0 then ACanvas.TextColor := clRed;
if ItemIndex mod 3 = 0 then ACanvas.TextColor := clBlue;
if ItemIndex mod 4 = 0 then ACanvas.TextColor := clGray;
if ItemIndex mod 5 = 0 then ACanvas.TextColor := clPink;
end;
procedure TMainForm.ItemSelectionChanged(ListView: TfpgListView;
Item: TfpgLVItem; ItemIndex: Integer; Selected: Boolean);
begin
WriteLn('Item changed: ', ItemIndex, ' ', Item.Caption, ' ',Selected);
end;
constructor TMainForm.Create(AOwner: TComponent);
var
LVColumn: TfpgLVColumn;
begin
inherited Create(AOwner);
WindowTitle := 'ListView Test';
SetPosition(200, 200, 610, 455);
FListView := TfpgListView.Create(Self);
with FListView do begin
Parent := Self;
Top := 10;
Left := 10;
Width := 320;
Height := 400;
OnPaintItem := @PaintItem;
OnSelectionChanged := @ItemSelectionChanged;
MultiSelect := True;
end;
FTmpListView := TfpgListView.Create(Self);
with FTmpListView do begin
Parent := Self;
Top := 10;
Left := 335;
Width := 270;
Height := 400;
//OnPaintItem := @PaintItem;
Items := FListView.Items;
end;
LVColumn := TfpgLVColumn.Create(FListView.Columns);
LVColumn.Caption := 'Column 1';
LVColumn.Width := 150;
LVColumn.Height := 50;
LVColumn.Resizable := True;
LVColumn.Alignment := taRightJustify;
FListView.Columns.Add(LVColumn);
FTmpListView.Columns.Add(LVColumn);
LVColumn := TfpgLVColumn.Create(FListView.Columns);
LVColumn.Caption := 'Column 2';
LVColumn.Width := 100;
LVColumn.Height := 50;
LVColumn.Alignment := taCenter;
//LVColumn.Visible := False;
FListView.Columns.Add(LVColumn);
//FTmpListView.Columns.Add(LVColumn);
LVColumn := TfpgLVColumn.Create(FListView.Columns);
LVColumn.Caption := 'Column 3';
LVColumn.Width := 200;
LVColumn.Height := 50;
//LVColumn.Visible := False;
LVColumn.Resizable := True;
LVColumn.Alignment := taRightJustify;
FListView.Columns.Add(LVColumn);
FTmpListView.Columns.Add(LVColumn);
LVColumn.ColumnIndex := 2;
FEdit := TfpgEdit.Create(Self);
with FEdit do begin
Parent := Self;
Top := 420;
Left := 10;
Width := 100;
end;
FAddButton := TfpgButton.Create(Self);
with FAddButton do begin
Parent := Self;
Top := 420;
Left := 120;
Width := 80;
Text := 'Add';
OnClick := @AddBttn;
end;
FQuitButton := TfpgButton.Create(Self);
with FQuitButton do begin
Parent := Self;
ImageName := 'stdimg.Quit';
ShowImage := True;
Top := 420;
Left := 210;
Width := 80;
Text := 'Quit';
OnClick := @CloseBttn;
end;
FCheck := TfpgCheckBox.Create(Self);
with FCheck do begin
Parent := Self;
Top := 420;
Left := 290;
Width := 110;
Checked := True;
Text := 'ShowHeaders';
OnChange := @ShowHeadersChange;
end;
end;
begin
fpgApplication.Initialize;
with TMainForm.Create(nil) do
begin
Show;
fpgApplication.Run;
Free;
end;
end.
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