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program gridtest;
{$mode objfpc}{$H+}
uses
{$IFDEF UNIX}{$IFDEF UseCThreads}
cthreads,
{$ENDIF}{$ENDIF}
Classes,
SysUtils,
fpg_base,
fpg_main,
fpg_form,
fpg_basegrid,
fpg_grid,
fpg_button,
fpg_checkbox,
fpg_tab,
fpg_edit,
fpg_dialogs,
fpg_scrollbar;
type
{ TMainForm }
TMainForm = class(TfpgForm)
private
{@VFD_HEAD_BEGIN: MainForm}
btnQuit: TfpgButton;
stringgrid: TfpgStringGrid;
chkShowHeader: TfpgCheckBox;
chkShowGrid: TfpgCheckBox;
chkRowSelect: TfpgCheckBox;
chkDisabled: TfpgCheckBox;
chkHideFocus: TfpgCheckBox;
edtTopRow: TfpgEditInteger;
btnTopRow: TfpgButton;
btnAddFive: TfpgButton;
btnAddOne: TfpgButton;
btnFiveOnly: TfpgButton;
btnDelRow: TfpgButton;
chkSmoothScroll: TfpgCheckBox;
chkAlterColor: TfpgCheckBox;
{@VFD_HEAD_END: MainForm}
procedure StringGridHeaderClicked(Sender: TObject; ACol: Integer);
procedure StringGridDoubleClicked(Sender: TObject; AButton: TMouseButton; AShift: TShiftState; const AMousePos: TPoint);
procedure btnAddFiveClicked(Sender: TObject);
procedure btnAddOneClicked(Sender: TObject);
procedure btnFiveOnlyClicked(Sender: TObject);
procedure btnDelRowClicked(Sender: TObject);
procedure chkDisabledChange(Sender: TObject);
procedure chkRowSelectChange(Sender: TObject);
procedure chkShowHeaderChange(Sender: TObject);
procedure chkShowGridChange(Sender: TObject);
procedure chkHideFocusChange(Sender: TObject);
procedure chkSmoothScrollChange(Sender: TObject);
procedure chkAlterColorChange(Sender: TObject);
procedure btnQuitClick(Sender: TObject);
procedure stringgridDrawCell(Sender: TObject; const ARow, ACol: Integer;
const ARect: TfpgRect; const AFlags: TfpgGridDrawState; var ADefaultDrawing: boolean);
procedure btnTopRowClicked(Sender: TObject);
public
procedure AfterCreate; override;
end;
{@VFD_NEWFORM_DECL}
{ TMainForm }
procedure TMainForm.StringGridHeaderClicked(Sender: TObject; ACol: Integer);
begin
ShowMessage(Format('column %d clicked', [ACol]));
end;
procedure TMainForm.StringGridDoubleClicked(Sender: TObject;
AButton: TMouseButton; AShift: TShiftState; const AMousePos: TPoint);
var
lCol, lRow: integer;
begin
StringGrid.MouseToCell(AMousePos.X, AMousePos.Y, lCol, lRow);
StringGrid.Cells[lCol, lRow] := Format('(c%d,r%d)', [lCol, lRow]);
end;
procedure TMainForm.btnAddFiveClicked(Sender: TObject);
begin
StringGrid.RowCount := StringGrid.RowCount + 5;
end;
procedure TMainForm.btnAddOneClicked(Sender: TObject);
begin
StringGrid.RowCount := StringGrid.RowCount + 1;
end;
procedure TMainForm.btnFiveOnlyClicked(Sender: TObject);
begin
StringGrid.RowCount := 5;
end;
procedure TMainForm.btnDelRowClicked(Sender: TObject);
begin
if StringGrid.RowCount > 0 then
stringgrid.DeleteRow(stringgrid.FocusRow);
end;
procedure TMainForm.chkDisabledChange(Sender: TObject);
begin
stringgrid.Enabled := not chkDisabled.Checked;
end;
procedure TMainForm.chkRowSelectChange(Sender: TObject);
begin
stringgrid.RowSelect := chkRowSelect.Checked;
end;
procedure TMainForm.chkShowHeaderChange(Sender: TObject);
begin
stringgrid.ShowHeader := chkShowHeader.Checked;
end;
procedure TMainForm.chkShowGridChange(Sender: TObject);
begin
stringgrid.ShowGrid := chkShowGrid.Checked;
end;
procedure TMainForm.chkHideFocusChange(Sender: TObject);
begin
if chkHideFocus.Checked then
stringgrid.Options := stringgrid.Options + [go_HideFocusRect]
else
stringgrid.Options := stringgrid.Options - [go_HideFocusRect];
stringgrid.Invalidate;
end;
procedure TMainForm.chkSmoothScrollChange(Sender: TObject);
begin
if chkSmoothScroll.Checked then
stringgrid.Options := stringgrid.Options + [go_SmoothScroll]
else
stringgrid.Options := stringgrid.Options - [go_SmoothScroll];
stringgrid.Update;
end;
procedure TMainForm.chkAlterColorChange(Sender: TObject);
begin
if chkAlterColor.Checked then
stringgrid.Options := stringgrid.Options + [go_AlternativeColor]
else
stringgrid.Options := stringgrid.Options - [go_AlternativeColor];
stringgrid.Invalidate;
end;
procedure TMainForm.btnQuitClick(Sender: TObject);
begin
Close;
end;
procedure TMainForm.stringgridDrawCell(Sender: TObject; const ARow,
ACol: Integer; const ARect: TfpgRect; const AFlags: TfpgGridDrawState;
var ADefaultDrawing: boolean);
begin
if (ACol = 1) and (ARow = 3) then
begin
ADefaultDrawing := False;
StringGrid.Canvas.SetColor(clGreen);
fpgStyle.DrawDirectionArrow(StringGrid.Canvas, ARect.Left, ARect.Top,
ARect.Height, ARect.Height, adRight);
StringGrid.Canvas.SetTextColor(clTeal);
StringGrid.Canvas.DrawString(ARect.Height + ARect.Left + 2, ARect.Top, StringGrid.Cells[ACol, ARow]);
end;
// two rows with different background color
if (ARow = 7) or (ARow = 8) then
begin
if ((gdSelected in AFlags) and (gdFocused in AFlags)) or
(gdSelected in AFlags) then
Exit; // we want select cel to be painted as normal
// If we got here, we must do some painting. The background first.
StringGrid.Canvas.Color := clOrange;
StringGrid.Canvas.FillRectangle(ARect);
// NOTE: We want the grid to take care of the drawing of the text, which
// handles text layout and alignment, so we MUST NOT set the
// ADefaultDrawing to False. If we do, we need to handle text painting
// ourselves.
end;
end;
procedure TMainForm.btnTopRowClicked(Sender: TObject);
begin
if edtTopRow.Value < 0 then
Exit;
stringgrid.TopRow := edtTopRow.Value;
end;
procedure TMainForm.AfterCreate;
var
r: Longword;
begin
{@VFD_BODY_BEGIN: MainForm}
Name := 'MainForm';
SetPosition(351, 214, 515, 350);
WindowTitle := 'Grid control test';
Hint := '';
WindowPosition := wpScreenCenter;
MinWidth := 200;
MinHeight := 200;
btnQuit := TfpgButton.Create(self);
with btnQuit do
begin
Name := 'btnQuit';
SetPosition(425, 320, 80, 25);
Anchors := [anRight,anBottom];
Text := 'Quit';
FontDesc := '#Label1';
Hint := '';
ImageName := 'stdimg.Quit';
TabOrder := 1;
OnClick := @btnQuitClick;
end;
stringgrid := TfpgStringGrid.Create(self);
with stringgrid do
begin
Name := 'stringgrid';
SetPosition(10, 10, 375, 250);
Anchors := [anLeft,anRight,anTop,anBottom];
AddColumn('Column 1', 100, taLeftJustify);
AddColumn('Col 2', 50, taCenter);
AddColumn('Numbers', 150, taRightJustify);
AddColumn('Column 4', 150, taRightJustify);
AddColumn('Column 5', 150, taRightJustify);
AddColumn('Column 6', 150, taRightJustify);
FontDesc := '#Grid';
HeaderFontDesc := '#GridHeader';
Hint := '';
RowCount := 17;
RowSelect := False;
TabOrder := 1;
AddColumn('Column 0', 65);
// Alignment test
Cells[1, 2] := 'left';
Cells[2, 2] := 'center';
Cells[3, 2] := 'right';
// override default colors
BackgroundColor:= clKhaki;
ColumnBackgroundColor[2] := clLightGray;
TextColor:= clBlue;
ColumnTextColor[1] := clRed;
// add some text
Cells[0, 0] := '[c0, r0]';
Cells[1, 1] := '[c1, r1]';
Cells[1, 3] := 'Custom';
Cells[2, 3] := 'Hello';
Cells[3, 1] := '[c3, r1]';
// Add custom painting
OnDrawCell := @StringGridDrawCell;
OnDoubleClick := @StringGridDoubleClicked;
OnHeaderClick := @StringGridHeaderClicked;
// Testing various scrollbar styles
// ScrollBarStyle:= ssNone;
// ScrollBarStyle:= ssHorizontal;
// ScrollBarStyle:= ssVertical;
ScrollBarStyle:= ssAutoBoth;
// ScrollBarStyle:= ssHorizVisible;
// ScrollBarStyle:= ssVertiVisible;
// ScrollBarStyle:= ssBothVisible;
end;
chkShowHeader := TfpgCheckBox.Create(self);
with chkShowHeader do
begin
Name := 'chkShowHeader';
SetPosition(394, 12, 116, 24);
Anchors := [anRight,anTop];
Checked := True;
FontDesc := '#Label1';
Hint := '';
TabOrder := 2;
Text := 'Show Header';
OnChange := @chkShowHeaderChange;
end;
chkShowGrid := TfpgCheckBox.Create(self);
with chkShowGrid do
begin
Name := 'chkShowGrid';
SetPosition(394, 36, 120, 24);
Anchors := [anRight,anTop];
Checked := True;
FontDesc := '#Label1';
Hint := '';
TabOrder := 3;
Text := 'Show Grid';
OnChange := @chkShowGridChange;
end;
chkRowSelect := TfpgCheckBox.Create(self);
with chkRowSelect do
begin
Name := 'chkRowSelect';
SetPosition(394, 60, 116, 24);
Anchors := [anRight,anTop];
FontDesc := '#Label1';
Hint := '';
TabOrder := 4;
Text := 'Row Select';
OnChange := @chkRowSelectChange;
end;
chkDisabled := TfpgCheckBox.Create(self);
with chkDisabled do
begin
Name := 'chkDisabled';
SetPosition(394, 84, 116, 24);
Anchors := [anRight,anTop];
FontDesc := '#Label1';
Hint := '';
TabOrder := 5;
Text := 'Disabled';
OnChange := @chkDisabledChange;
end;
chkHideFocus := TfpgCheckBox.Create(self);
with chkHideFocus do
begin
Name := 'chkHideFocus';
SetPosition(394, 108, 120, 24);
Anchors := [anRight,anTop];
FontDesc := '#Label1';
Hint := '';
TabOrder := 6;
Text := 'Hide Focus';
OnChange := @chkHideFocusChange;
end;
edtTopRow := TfpgEditInteger.Create(self);
with edtTopRow do
begin
Name := 'edtTopRow';
SetPosition(12, 280, 56, 24);
Anchors := [anLeft,anBottom];
FontDesc := '#Edit1';
Hint := '';
TabOrder := 8;
Value := 0;
end;
btnTopRow := TfpgButton.Create(self);
with btnTopRow do
begin
Name := 'btnTopRow';
SetPosition(72, 280, 91, 23);
Anchors := [anLeft,anBottom];
Text := 'Set TopRow';
FontDesc := '#Label1';
Hint := '';
ImageName := '';
TabOrder := 7;
OnClick := @btnTopRowClicked;
end;
btnAddFive := TfpgButton.Create(self);
with btnAddFive do
begin
Name := 'btnAddFive';
SetPosition(168, 280, 80, 23);
Anchors := [anLeft,anBottom];
Text := 'Add 5 lines';
FontDesc := '#Label1';
Hint := '';
ImageName := '';
TabOrder := 8;
OnClick := @btnAddFiveClicked;
end;
btnAddOne := TfpgButton.Create(self);
with btnAddOne do
begin
Name := 'btnAddOne';
SetPosition(252, 280, 80, 23);
Anchors := [anLeft,anBottom];
Text := 'Add 1 line';
FontDesc := '#Label1';
Hint := '';
ImageName := '';
TabOrder := 9;
OnClick := @btnAddOneClicked;
end;
btnFiveOnly := TfpgButton.Create(self);
with btnFiveOnly do
begin
Name := 'btnFiveOnly';
SetPosition(336, 280, 80, 23);
Anchors := [anLeft,anBottom];
Text := '5 lines only';
FontDesc := '#Label1';
Hint := '';
ImageName := '';
TabOrder := 10;
OnClick := @btnFiveOnlyClicked;
end;
btnDelRow := TfpgButton.Create(self);
with btnDelRow do
begin
Name := 'btnDelRow';
SetPosition(168, 308, 80, 23);
Anchors := [anLeft,anBottom];
Text := 'Delete Row';
FontDesc := '#Label1';
Hint := '';
ImageName := '';
TabOrder := 12;
OnClick := @btnDelRowClicked;
end;
chkSmoothScroll := TfpgCheckBox.Create(self);
with chkSmoothScroll do
begin
Name := 'chkSmoothScroll';
SetPosition(394, 132, 120, 24);
Anchors := [anRight,anTop];
FontDesc := '#Label1';
Hint := '';
TabOrder := 14;
Text := 'Smooth Scroll';
OnChange := @chkSmoothScrollChange;
end;
chkAlterColor := TfpgCheckBox.Create(self);
with chkAlterColor do
begin
Name := 'chkAlterColor';
SetPosition(394, 156, 120, 24);
Anchors := [anRight,anTop];
FontDesc := '#Label1';
Hint := '';
TabOrder := 15;
Text := 'Alternate Color';
OnChange := @chkAlterColorChange;
end;
{@VFD_BODY_END: MainForm}
for r := 0 to stringgrid.RowCount-1 do
stringgrid.Cells[3, r] := IntToStr(r);
end;
{@VFD_NEWFORM_IMPL}
procedure MainProc;
var
frm: TMainForm;
begin
fpgApplication.Initialize;
frm := TMainForm.Create(nil);
frm.Show;
fpgApplication.Run;
frm.Free;
end;
begin
MainProc;
end.
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