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| ///////////////////////////////////////////////////////////////////////////
// //
// Copyright (c) 2015 by Charta Software B.V. //
// All rights reserved //
// //
// Version: 1.7.0.83525 //
// Web site: https://pascal.chartasoftware.com/ //
// //
// This code and information are provided "as is" without warranty of //
// any kind. Dissemination of this information or reproduction of //
// this material is strictly forbidden unless prior written permission //
// is obtained from Charta Software B.V.. //
// //
///////////////////////////////////////////////////////////////////////////
unit UserInterface.Control.Table;
// TODO: Currently TTableControl manages all assistent control and paints the cells as well. Instead we should introduce a
// TTableCellsControl which shows the main contents and also the filter cells.
// TODO: Currently the TTableControl is in a general state of refactoring. The goal is to move much of the functionality out
// of TTableControl into the assistent controls as appropriate.
interface
{$SCOPEDENUMS ON}
uses
Alignment,
Boolean,
Code.Expression,
Collection.List,
Color.Model,
Color.Rgb,
CumulativeSizes,
CumulativeSizes.Even,
CumulativeSizes.Sizable,
Drawing.Canvas,
Event,
Geometry._2d.Integer32.Point,
Geometry._2d.Integer32.Rectangle,
Geometry._2d.Integer32.Size,
Integer._32,
Integer._32.Interval.List.OrderedDisjoint,
Table.Cells,
Table.GridLine,
Table.Header,
Table.Header.Model,
Table.Model,
Table.Row.Filter.Model,
Table.Row.Ordering.Column,
Table.TabDelimited.Writer,
Text,
Timer,
TypedValue,
UserInterface.Control,
UserInterface.Control.Scroll.Panel,
UserInterface.Control.WeakReference,
UserInterface.Keyboard.Event,
UserInterface.Keyboard.Modifiers,
UserInterface.Mouse.Event,
UserInterface.Navigation,
UserInterface.Object_.Action.Default,
UserInterface.Object_.Selection,
UserInterface.Selection._2d,
Value,
Value.Path,
Windows.Gdi.Cursor;
type
TTableControl = class;
TTableControlMouseAction = (None, PressingButton, Resizing, Selecting);
TMouseSelectionMode = (New, NewAndKeepOld, Expand);
TTableAssistentControl = class(TControl)
private
FEditorValue: TTypedValue;
procedure InternalSetEditorValue(const Value: TTypedValue);
protected
FTableControl: TTableControl;
procedure TableControlChanged; virtual;
procedure SetTableControl(const Value: TTableControl);
function ClearSelectionOnFocus(): TBoolean; virtual;
procedure PaintCaption(Canvas: TCanvas; const Bounds: TInteger32Rectangle; const Value: TText);
function GetCaptionAlignment(): THorizontalAlignment; virtual;
property EditorValue: TTypedValue read FEditorValue write InternalSetEditorValue;
public
destructor Destroy(); override;
function HandlesNavigationDimension(NavigationDimension: TValidNavigationDimension): TBoolean; override;
procedure GainedFocus(); override;
procedure GainedFocusInComposition(); override;
property TableControl: TTableControl read FTableControl write SetTableControl;
end;
TButtonEdgeStyle = (Size, Shadow);
TTableHeadersControl = class(TTableAssistentControl)
protected
FEditor: TControl;
FFocusedHeader: TInteger32;
DownHeader: TInteger32;
MouseAction: TTableControlMouseAction;
function HeaderIsDown(Index: TInteger32): TBoolean;
procedure PaintHeaderButton(Canvas: TCanvas; const Bounds: TInteger32Rectangle; Down: TBoolean; RightEdge, BottomEdge: TButtonEdgeStyle);
function HasSortIndicator(Index: TInteger32): TBoolean; virtual;
function GetHeaderBounds(Index: TInteger32): TInteger32Rectangle; virtual; abstract;
function GetCaptionBounds(Index: TInteger32): TInteger32Rectangle;
procedure AdjustEditor();
function GetEditor(): TControl; override;
function GetEditorBounds(): TInteger32Rectangle; override;
procedure SetEditorValue(Value: TValue); override;
public
Model: TTableHeaderModel;
Sizes: TCumulativeSizes;
Headers: TTableHeaders;
Selection: T2dSelection;
HiddenHeaders: TInteger32OrderedDisjointIntervalList;
constructor Create(); override;
destructor Destroy(); override;
procedure Update();
function FocusedHeaderIsValid(): TBoolean;
procedure FireFocusedHeaderChanged();
procedure DetermineHiddenHeaders();
property FocusedHeader: TInteger32 read FFocusedHeader write FFocusedHeader;
end;
TColumnHeadersControl = class(TTableHeadersControl)
private
function CreateColumns(): TSizableCumulativeSizes;
protected
SortColumns: TSortColumns;
ResizeColumn: TInteger32;
ResizeStart: TInteger32;
procedure TableControlChanged(); override;
function ClearSelectionOnFocus(): TBoolean; override;
function HasSortIndicator(Index: TInteger32): TBoolean; override;
procedure PaintSortIndicator(Canvas: TCanvas; const Position: TInteger32Point; SortOrder: TSortOrder);
procedure ShowResizeHint(Width: TInteger32);
function GetGluedPosition(X: TInteger32): TInteger32;
function Navigate(Direction: TNavigationDirection; KeyModifiers: TKeyModifiers): TBoolean; override;
function HandleInsert(KeyModifiers: TKeyModifiers): TBoolean;
function HandleDelete(KeyModifiers: TKeyModifiers): TBoolean;
function GetHeaderBounds(Index: TInteger32): TInteger32Rectangle; override;
procedure HandleFocusAndEditor(Canvas: TCanvas);
procedure ScrollEditorIntoView(); override;
procedure IndicateFocus(Canvas: TCanvas);
public
constructor Create(); override;
procedure Paint(Canvas: TCanvas); override;
function GetPreferredSize(AvailableSize: TInteger32Size): TInteger32Size; override;
function KeyPress(Event: TKeyPressEvent): TBoolean; override;
function KeyDown(Event: TKeyDownEvent): TBoolean; override;
function KeyUp(Event: TKeyUpEvent): TBoolean; override;
function ShouldForwardKeyPressDownChain(Event: TKeyPressEvent): TBoolean; override;
function MouseLeftDown(Event: TMouseButtonEvent): TBoolean; override;
function MouseLeftUp(Event: TMouseButtonEvent): TBoolean; override;
function MouseMove(Event: TMouseMoveEvent): TBoolean; override;
function GetCursorForPosition(const Position: TInteger32Point): TCursor; override;
end;
// TODO: TBasicRowHeadersControl and TRowHeadersControl should be merged but for now TRowHeadersControl is still too much
// dependent on TableControl which it should not be. Basic, generic, row headers functionality is present in
// TBasicRowHeadersControl and is currently used for the filter rows.
TBasicRowHeadersControl = class(TTableHeadersControl)
private
function CreateRows(): TEvenCumulativeSizes;
protected
function GetCaptionAlignment(): THorizontalAlignment; override;
function GetHeaderBounds(Index: TInteger32): TInteger32Rectangle; override;
public
constructor Create(); override;
procedure Paint(Canvas: TCanvas); override;
function GetPreferredSize(AvailableSize: TInteger32Size): TInteger32Size; override;
function ShouldForwardKeyDownDownChain(Event: TKeyDownEvent): TBoolean; override;
end deprecated;
TRowHeadersControl = class(TBasicRowHeadersControl)
protected
function GetContextMenuTargetBounds(): TInteger32Rectangle; override;
function Navigate(Direction: TNavigationDirection; KeyModifiers: TKeyModifiers): TBoolean; override;
function ClearSelectionOnFocus(): TBoolean; override;
function HandleInsert(KeyModifiers: TKeyModifiers): TBoolean;
function HandleDelete(KeyModifiers: TKeyModifiers): TBoolean;
function GetEditorBounds(): TInteger32Rectangle; override;
procedure ScrollEditorIntoView(); override;
public
function GetFocusedObject(): TValuePath; override;
function GetObjectSelection(): TObjectSelection; override;
function KeyDown(Event: TKeyDownEvent): TBoolean; override;
function PasteFromClipboard(): TBoolean; override;
function MouseLeftDown(Event: TMouseButtonEvent): TBoolean; override;
function MouseLeftUp(Event: TMouseButtonEvent): TBoolean; override;
function MouseRightDown(Event: TMouseButtonEvent): TBoolean; override;
function MouseMove(Event: TMouseMoveEvent): TBoolean; override;
procedure InsertLast();
procedure Insert();
procedure Delete();
end;
TTopLeftHeaderControl = class(TTableHeadersControl)
protected
function GetHeaderBounds(Index: TInteger32): TInteger32Rectangle; override;
public
constructor Create(); override;
procedure Paint(Canvas: TCanvas); override;
function MouseLeftDown(Event: TMouseButtonEvent): TBoolean; override;
function MouseLeftUp(Event: TMouseButtonEvent): TBoolean; override;
function MouseMove(Event: TMouseMoveEvent): TBoolean; override;
function KeyUp(Event: TKeyUpEvent): TBoolean; override;
function PasteFromClipboard(): TBoolean; override;
function GetScrollSize(AvailableSize: TInteger32Size): TInteger32Size; override;
end;
TColumnFiltersControl = class(TTableAssistentControl)
protected
Columns: TCumulativeSizes;
FEditor: TControl;
procedure TableControlChanged(); override;
procedure PaintGridLines(Canvas: TCanvas);
procedure SetEditorValue(Value: TValue); override;
procedure AdjustEditor();
function GetEditor(): TControl; override;
function GetEditorBounds(): TInteger32Rectangle; override;
procedure HandleFocusAndEditor(Canvas: TCanvas);
procedure IndicateFocus(Canvas: TCanvas);
function GetColumnBounds(Column: TInteger32): TInteger32Rectangle;
function GetCellBounds(Column: TInteger32): TInteger32Rectangle;
function Navigate(Direction: TNavigationDirection; KeyModifiers: TKeyModifiers): TBoolean; override;
public
FilterValues: TList<TText>;
Model: TTableRowFilterTableModel;
constructor Create(); override;
destructor Destroy(); override;
procedure Paint(Canvas: TCanvas); override;
procedure ColumnCountChanged();
function MouseLeftDown(Event: TMouseButtonEvent): TBoolean; override;
function KeyDown(Event: TKeyDownEvent): TBoolean; override;
function GetPreferredSize(AvailableSize: TInteger32Size): TInteger32Size; override;
function PasteFromClipboard(): TBoolean; override;
end;
// TODO: TColumnFiltersHeadersControl is probably too specific and might better be a generic TRowHeadersControl when
// refactoring the TTableControl into a proper composition is complete
TColumnFiltersHeadersControl = class(TBasicRowHeadersControl)
public
RowHeadersControl: TControlWeakReference<TRowHeadersControl>;
constructor Create(); override;
destructor Destroy(); override;
function GetPreferredSize(AvailableSize: TInteger32Size): TInteger32Size; override;
function HandleEvent(Event: TEvent): TBoolean; override;
end;
TAutoSizeOption = (IncludeCaption);
TAutoSizeOptions = set of TAutoSizeOption;
// TODO: We should probably remove TAutoSizeAction in favor of TControlSize style property
TAutoSizeAction = class(TObject);
TAutoSizeActionPreferred = class(TAutoSizeAction)
private
FMinimumSize: TInteger32;
FOptions: TAutoSizeOptions;
public
constructor Create(MinimumSize: TInteger32 = 100; Options: TAutoSizeOptions = []); virtual;
property MinimumSize: TInteger32 read FMinimumSize;
property Options: TAutoSizeOptions read FOptions;
end;
TAutoSizeActionFixed = class(TAutoSizeAction)
private
FSize: TInteger32;
public
constructor Create(Size: TInteger32 = 100); virtual;
property Size: TInteger32 read FSize;
end;
TTableControl = class(TControl)
private
FModel: TTableModel;
FShowGridLines: TGridLines;
FEditor: TControl;
FSelection: T2dSelection;
FAllowedSelectionDimensions: T2dSelectionDimensions;
FAutoRefreshInterval: TInteger32;
FFocusedCells: TTableCells;
FVisibleCells: TTableCells;
FAutoSizeAction: TAutoSizeAction;
procedure SetFocusedCells(const Value: TTableCells);
procedure SetVisibleCells(const Value: TTableCells);
procedure SetAutoSizeAction(const Value: TAutoSizeAction);
private
ColumnColorModel: TIndexColorModel;
SortColumns: TSortColumns;
FilterExpression: TExpression;
MouseAction: TTableControlMouseAction;
AutoRefreshTimer: TTimer;
private
FScrollPanel: TScrollPanel;
FColumnHeadersControl: TColumnHeadersControl;
FRowHeadersControl: TRowHeadersControl;
FTopLeftHeaderControl: TTopLeftHeaderControl;
FColumnFiltersControl: TColumnFiltersControl;
FColumnFiltersHeadersControl: TColumnFiltersHeadersControl;
procedure SetModel(const Value: TTableModel);
procedure SetShowGridLines(const Value: TGridLines);
function GetFocusedRow(): TInteger32;
procedure SetFocusedRow(const Value: TInteger32);
function GetFocusedColumn(): TInteger32;
procedure SetFocusedColumn(const Value: TInteger32);
procedure SetFocusedCell(Row, Column: TInteger32);
function GetSelectionDimension(): T2dSelectionDimension;
procedure SetSelectionDimension(const Value: T2dSelectionDimension);
procedure SetAllowedSelectionDimensions(const Value: T2dSelectionDimensions);
procedure SetAutoRefreshInterval(const Value: TInteger32);
function GetIsRowFiltering(): TBoolean;
procedure SetIsRowFiltering(const Value: TBoolean);
function GetRows(): TCumulativeSizes; deprecated;
function GetColumns(): TCumulativeSizes; deprecated;
procedure DetermineVisibleCells();
procedure AttachToModel();
procedure DetachFromModel();
function CreatePainterForCell(Cells: TTableCells; Row, Column: TInteger32): TControl;
procedure PaintGridLines(Canvas: TCanvas);
procedure PaintCell(Canvas: TCanvas; Row: TInteger32; Column: TInteger32; Color: TRgbColor);
procedure PaintColumn(Canvas: TCanvas; Column: TInteger32);
procedure HandleFocusAndEditor(Canvas: TCanvas);
procedure IndicateFocus(Canvas: TCanvas);
procedure UpdateTableCells();
procedure FireFocusedCellChanged();
procedure HandleMouseSelection(Row, Column: TInteger32; SelectionMode: TMouseSelectionMode);
function ValidateSelectionDimension(Dimension: T2dSelectionDimension): T2dSelectionDimension;
procedure ValidateAutoSizeAction();
procedure AutoSizeColumns(Action: TAutoSizeAction);
procedure AutoSizeColumnsPreferred(Action: TAutoSizeActionPreferred);
procedure AutoSizeColumnsFixed(Action: TAutoSizeActionFixed);
protected
procedure BoundsChanged(const OldBounds: TInteger32Rectangle; const NewBounds: TInteger32Rectangle); override;
procedure HasBeenBoundToLayout(); override;
procedure DescendantRequestsFocus(Descendant: TControl); override;
procedure DescendantFiresEvent(Descendant: TControl; Event: TEvent); override;
function Navigate(Direction: TNavigationDirection; KeyModifiers: TKeyModifiers): TBoolean; override;
function GoForward(): TBoolean; override;
function GoBackward(): TBoolean; override;
function GetEditor(): TControl; override;
procedure SetEditorValue(Value: TValue); override;
procedure ResetEditorValue(); override;
function GetEditorBounds(): TInteger32Rectangle; override;
procedure ScrollEditorIntoView(); override;
procedure RemoveEditor();
procedure AdjustColumnEditors();
procedure AdjustRowEditors();
procedure AdjustEditor();
function NavigateDimension(NavigationDimension: TValidNavigationDimension; Direction: TNavigationDirection; KeyModifiers: TKeyModifiers; Expand: TBoolean): TBoolean;
function NavigateVertically(Direction: TNavigationDirection; KeyModifiers: TKeyModifiers; Expand: TBoolean): TBoolean;
function NavigateHorizontally(Direction: TNavigationDirection; KeyModifiers: TKeyModifiers; Expand: TBoolean): TBoolean;
function HandleInsert(KeyModifiers: TKeyModifiers): TBoolean;
function HandleDelete(KeyModifiers: TKeyModifiers): TBoolean;
procedure InsertRow(Index: TInteger32);
procedure InsertColumn(Index: TInteger32);
procedure DeleteCells();
procedure DeleteRows();
procedure DeleteColumns();
procedure DeleteAll();
procedure DetermineRowCount();
function GetCellBounds(Row, Column: TInteger32): TInteger32Rectangle;
procedure ResetSort();
procedure SortOnColumn(Column: TInteger32);
procedure SortOnRow(Row: TInteger32);
procedure UpdateRowFilter();
procedure WriteCells(Writer: TTabDelimitedWriter; Block: TInteger32Rectangle);
property FocusedCells: TTableCells read FFocusedCells write SetFocusedCells;
property VisibleCells: TTableCells read FVisibleCells write SetVisibleCells;
public
constructor Create(); override;
destructor Destroy(); override;
function HandleEvent(Event: TEvent): TBoolean; override;
procedure Paint(Canvas: TCanvas); override;
function CreateToolbar(): TControl; override;
function Embellish(): TControl; override;
procedure GainedFocus(); override;
procedure LostFocus(); override;
function GetScrollSize(AvailableSize: TInteger32Size): TInteger32Size; override;
function GetPreferredSize(AvailableSize: TInteger32Size): TInteger32Size; override;
procedure VisibleRectangleChanged(); override;
function KeyDown(Event: TKeyDownEvent): TBoolean; override;
function ShouldForwardKeyDownDownChain(Event: TKeyDownEvent): TBoolean; override;
function HandlesNavigationDimension(NavigationDimension: TValidNavigationDimension): TBoolean; override;
function MouseLeftDown(Event: TMouseButtonEvent): TBoolean; override;
function MouseLeftUp(Event: TMouseButtonEvent): TBoolean; override;
function MouseMove(Event: TMouseMoveEvent): TBoolean; override;
function PasteFromClipboard(): TBoolean; override;
function CopyToClipboard(): TBoolean; override;
procedure Enter(); override;
procedure EnterFromTop(Fast: TBoolean); override;
procedure EnterFromBottom(Fast: TBoolean); override;
procedure EnterFromLeft(Fast: TBoolean); override;
procedure EnterFromRight(Fast: TBoolean); override;
function GetFocusedObject(): TValuePath; override;
function GetObjectSelection(): TObjectSelection; override;
procedure Refresh();
procedure Save();
procedure ToggleRowFiltering();
procedure CreatePivotTable();
procedure CreateRowGroupingTable();
procedure CreateTableDrawing();
procedure ColumnCountChanged();
procedure RowCountChanged();
procedure Changed();
procedure CellsChanged(const Cells: TInteger32Rectangle);
procedure NewSelection(KeepOld: TBoolean = False);
procedure ExpandSelection();
procedure SelectAllRows();
procedure SelectAllColumns();
procedure SelectAllCells();
function DetermineMouseSelectionMode(SelectionDimension: T2dSelectionDimension; KeyModifiers: TKeyModifiers): TMouseSelectionMode;
procedure ScrollRowIntoView(Row: TInteger32);
procedure ScrollColumnIntoView(Column: TInteger32);
procedure ScrollCellIntoView(Row, Column: TInteger32);
procedure ScrollFocusedCellIntoView();
procedure SizeColumnToFitContents(ColumnIndex: TInteger32; InPlace: TBoolean; MinimumSize: TInteger32 = 100);
property Model: TTableModel read FModel write SetModel;
property Columns: TCumulativeSizes read GetColumns;
property Rows: TCumulativeSizes read GetRows;
property ShowGridLines: TGridLines read FShowGridLines write SetShowGridLines;
property ScrollPanel: TScrollPanel read FScrollPanel;
property ColumnHeadersControl: TColumnHeadersControl read FColumnHeadersControl;
property RowHeadersControl: TRowHeadersControl read FRowHeadersControl;
property TopLeftHeaderControl: TTopLeftHeaderControl read FTopLeftHeaderControl;
property ColumnFiltersControl: TColumnFiltersControl read FColumnFiltersControl;
property ColumnFiltersHeadersControl: TColumnFiltersHeadersControl read FColumnFiltersHeadersControl;
property FocusedRow: TInteger32 read GetFocusedRow write SetFocusedRow;
property FocusedColumn: TInteger32 read GetFocusedColumn write SetFocusedColumn;
property Selection: T2dSelection read FSelection;
property SelectionDimension: T2dSelectionDimension read GetSelectionDimension write SetSelectionDimension;
property AllowedSelectionDimensions: T2dSelectionDimensions read FAllowedSelectionDimensions write SetAllowedSelectionDimensions;
property IsRowFiltering: TBoolean read GetIsRowFiltering write SetIsRowFiltering;
property AutoRefreshInterval: TInteger32 read FAutoRefreshInterval write SetAutoRefreshInterval;
property AutoSizeAction: TAutoSizeAction read FAutoSizeAction write SetAutoSizeAction;
end;
TTableControlAction = class(TDefaultObjectAction<TTableControl>);
TRefreshAction = class(TTableControlAction)
public
function GetActionName(): TText; override;
public
procedure Execute(Control: TControl); override;
end;
TSaveAction = class(TTableControlAction)
public
function GetActionName(): TText; override;
public
procedure Execute(Control: TControl); override;
end;
TAddRowAction = class(TTableControlAction)
public
function GetActionName(): TText; override;
public
procedure Execute(Control: TControl); override;
end;
TDeleteRowsAction = class(TTableControlAction)
public
function GetActionName(): TText; override;
public
procedure Execute(Control: TControl); override;
end;
TFilterAction = class(TTableControlAction)
public
function GetActionName(): TText; override;
public
procedure Execute(Control: TControl); override;
end;
TAggregateAction = class(TTableControlAction)
public
function GetActionName(): TText; override;
public
procedure Execute(Control: TControl); override;
end;
TDiagramAction = class(TTableControlAction)
public
function GetActionName(): TText; override;
public
procedure Execute(Control: TControl); override;
end;
implementation
uses
Character.Encoding,
Character.Set_.Unicode,
Collection.List.Array_,
Color,
Color.Constants,
Drawing.Fill,
Drawing.Stroke,
Event.DistributionCenter,
Exception.Enumeration,
FloatingPoint._64.Interval,
Font.Purpose,
Geometry._2d.FloatingPoint64.Point,
Geometry._2d.Polyline,
Integer._32.Interval,
Integer._32.TextFormat,
Iterator,
Language.Translator,
Mathematics,
Object_.List,
Object_.Reference,
Object_.Reference.Counter,
Object_.Reference.Type_,
Stream.Input,
StructuredDocument.Compiler.Text,
Table.Drawing,
Table.Header.Model.Event,
Table.Model.Event,
Table.Pivot,
Table.Row,
Table.Row.Grouping,
Text.List,
Text.Stream.Output,
Text.Value,
UserInterface.ClipBoard,
UserInterface.Control.Border,
UserInterface.Control.Button.Glyph,
UserInterface.Control.Button.Tool,
UserInterface.Control.Event,
UserInterface.Control.Mode,
UserInterface.Control.Panel.Stack,
UserInterface.Control.Text.SingleLine,
UserInterface.Icon,
UserInterface.Keyboard.Key,
UserInterface.Selection,
Windows.Api.VirtualKeyCodes;
function KeyModifiersToMouseSelectionMode(KeyModifiers: TKeyModifiers): TMouseSelectionMode;
begin
if TKeyModifier.Shift in KeyModifiers then
Result := TMouseSelectionMode.Expand
else if TKeyModifier.Control in KeyModifiers then
Result := TMouseSelectionMode.NewAndKeepOld
else
Result := TMouseSelectionMode.New;
end;
{ TTableControl }
constructor TTableControl.Create();
var
CyclingColorModel: TCyclingColorModel;
begin
inherited Create();
SortColumns := TSortColumns.Create();
FSelection := T2dSelection.Create();
FColumnHeadersControl := TColumnHeadersControl.Create();
ColumnHeadersControl.TableControl := Self;
ColumnHeadersControl.Listeners.Add(Self);
FRowHeadersControl := TRowHeadersControl.Create();
RowHeadersControl.Selection := Selection;
RowHeadersControl.TableControl := Self;
RowHeadersControl.Listeners.Add(Self);
FTopLeftHeaderControl := TTopLeftHeaderControl.Create();
TopLeftHeaderControl.TableControl := Self;
FColumnFiltersControl := TColumnFiltersControl.Create();
ColumnFiltersControl.TableControl := Self;
// TODO: ColumnFiltersHeadersControl is configured here very specifically. Instead we should fully
// implement the communication between the column filters control and the column filter headers
FColumnFiltersHeadersControl := TColumnFiltersHeadersControl.Create();
ColumnFiltersHeadersControl.TableControl := Self;
ColumnFiltersHeadersControl.Model := ColumnFiltersControl.Model.GetRowModel();
ColumnFiltersHeadersControl.Update();
ColumnFiltersHeadersControl.RowHeadersControl.Value := RowHeadersControl;
FScrollPanel := TScrollPanel.Create();
ScrollPanel.GridSize := TInteger32Size.New(2, 3);
ScrollPanel.MainPanel := TInteger32Point.New(1, 2);
ScrollPanel.Panel[TInteger32Point.New(0, 0)] := TopLeftHeaderControl;
ScrollPanel.Panel[TInteger32Point.New(0, 1)] := ColumnFiltersHeadersControl;
ScrollPanel.Panel[TInteger32Point.New(0, 2)] := RowHeadersControl;
ScrollPanel.Panel[TInteger32Point.New(1, 0)] := ColumnHeadersControl;
ScrollPanel.Panel[TInteger32Point.New(1, 1)] := ColumnFiltersControl;
ScrollPanel.Panel[TInteger32Point.New(1, 2)] := Self;
VisibleCells := TTableCells.Create();
FocusedCells := TTableCells.Create();
CyclingColorModel := TCyclingColorModel.Create();
CyclingColorModel.AddColor(TNamedColor.White);
CyclingColorModel.AddColor(TNamedColor.LightYellow);
ColumnColorModel := CyclingColorModel;
ShowGridLines := [TGridLine.Vertical, TGridLine.Horizontal, TGridLine.Left, TGridLine.Right, TGridLine.Bottom];
Focusability := TFocusability.Focusable;
AllowedSelectionDimensions := [T2dSelectionDimension.None, T2dSelectionDimension.Rows, T2dSelectionDimension.Columns, T2dSelectionDimension.Cells];
Selection.Mode := TSelectionMode.MultipleIntervals;
end;
procedure TTableControl.CreateTableDrawing();
var
Drawing: TTableDrawing;
begin
Drawing := TTableDrawing.Create();
Drawing.Caption := Caption;
Drawing.Table := Model;
OpenControlForValue(Path.Extend([TObjectReference.Create(Drawing, TReferenceType.Owns)]), True);
end;
function TTableControl.CreateToolbar(): TControl;
var
Toolbar: THorizontalStackPanel;
begin
Toolbar := THorizontalStackPanel.Create();
Toolbar.InterControlSpace := 4;
Toolbar.AddControl(TToolButton.CreateInitialized(TUserInterfaceIcon.Loop, TRefreshAction.Create(Self)));
Toolbar.AddControl(TToolButton.CreateInitialized(TUserInterfaceIcon.Floppy, TSaveAction.Create(Self)));
Toolbar.AddControl(TToolButton.CreateInitialized(TUserInterfaceIcon.Plus, TAddRowAction.Create(Self)));
Toolbar.AddControl(TToolButton.CreateInitialized(TUserInterfaceIcon.Minus, TDeleteRowsAction.Create(Self)));
Toolbar.AddControl(TToolButton.CreateInitialized(TUserInterfaceIcon.MagnifyingGlass, TFilterAction.Create(Self)));
Toolbar.AddControl(TToolButton.CreateInitialized(TUserInterfaceIcon.Graph, TDiagramAction.Create(Self)));
Toolbar.AddControl(TToolButton.CreateInitialized(TUserInterfaceIcon.Calculator, TAggregateAction.Create(Self)));
Result := Toolbar;
end;
procedure TTableControl.CreatePivotTable();
var
PivotTable: TPivotTable;
begin
PivotTable := TPivotTable.Create();
PivotTable.Caption := Caption;
PivotTable.Model := Model;
OpenControlForValue(Path.Extend([TObjectReference.Create(PivotTable, TReferenceType.Owns)]), True);
end;
procedure TTableControl.CreateRowGroupingTable();
var
Grouping: TTableRowGrouping;
begin
Grouping := TTableRowGrouping.Create();
Grouping.Caption := Caption;
Grouping.Model := Model;
OpenControlForValue(Path.Extend([TObjectReference.Create(Grouping, TReferenceType.Owns)]), True);
end;
function TTableControl.GoBackward(): TBoolean;
begin
Result := (ColumnHeadersControl.FocusedHeader > 0) or (RowHeadersControl.FocusedHeader > 0);
if Result then
begin
if ColumnHeadersControl.FocusedHeader = 0 then
begin
if RowHeadersControl.FocusedHeader > 0 then
begin
FocusedRow := RowHeadersControl.FocusedHeader - 1;
FocusedColumn := Columns.Last;
end;
end
else
FocusedColumn := ColumnHeadersControl.FocusedHeader - 1;
if Selection.Area = 1 then
NewSelection();
ScrollFocusedCellIntoView();
end;
end;
function TTableControl.GoForward(): TBoolean;
begin
Result := (RowHeadersControl.FocusedHeader < Rows.Last) or (ColumnHeadersControl.FocusedHeader < Columns.Last);
if Result then
begin
if ColumnHeadersControl.FocusedHeader = Columns.Last then
begin
if RowHeadersControl.FocusedHeader < Rows.Last then
begin
FocusedRow := RowHeadersControl.FocusedHeader + 1;
FocusedColumn := 0;
end;
end
else
FocusedColumn := ColumnHeadersControl.FocusedHeader + 1;
if Selection.Area = 1 then
NewSelection();
ScrollFocusedCellIntoView();
end;
end;
procedure TTableControl.GainedFocus();
begin
inherited GainedFocus();
if Selection.CurrentSelectionPart.Dimension <> T2dSelectionDimension.Cells then
NewSelection();
AdjustEditor();
end;
function TTableControl.MouseLeftDown(Event: TMouseButtonEvent): TBoolean;
var
Column: TInteger32;
Row: TInteger32;
InEditorBounds: TBoolean;
EditorBounds: TInteger32Rectangle;
SelectionMode: TMouseSelectionMode;
EditorEvent: TMouseButtonDownEvent;
begin
GetMouseManager().ControlWithCapture := Self;
Result := True;
Column := Columns.ItemWithPosition(Event.Position.X);
Row := Rows.ItemWithPosition(Event.Position.Y);
if (Column <> -1) and (Row <> -1) then
begin
SelectionDimension := ValidateSelectionDimension(T2dSelectionDimension.Cells);
SelectionMode := DetermineMouseSelectionMode(SelectionDimension, Event.KeyModifiers);
if SelectionDimension = T2dSelectionDimension.Cells then
RequestFocus();
SetFocusedCell(Row, Column);
ScrollFocusedCellIntoView();
if Event.Count = 1 then
begin
if (Event.KeyModifiers = []) and not Selection.Selected[TInteger32Point.New(Column, Row)] then
begin
NewSelection();
Invalidate();
end;
if Editor <> nil then
begin
EditorBounds := Editor.Bounds;
InEditorBounds := EditorBounds.Contains(Event.Position);
end
else
InEditorBounds := False;
if InEditorBounds then
begin
EditorEvent := TMouseButtonDownEvent.Create(Event.Mouse);
EditorEvent.Position := Event.Position - Editor.Position;
EditorEvent.KeyModifiers := Event.KeyModifiers;
EditorEvent.Count := Event.Count;
end
else
EditorEvent := nil;
if
(Event.KeyModifiers <> [])
or not (
InEditorBounds and
Editor.MouseLeftDown(EditorEvent)
)
then
begin
MouseAction := TTableControlMouseAction.Selecting;
HandleMouseSelection(RowHeadersControl.FocusedHeader, ColumnHeadersControl.FocusedHeader, SelectionMode);
Invalidate();
end;
EditorEvent.Free();
end
else if Event.Count = 2 then
FireDefaultActionExecuted();
end
else
RequestFocus();
end;
function TTableControl.MouseMove(Event: TMouseMoveEvent): TBoolean;
var
Column: TInteger32;
Row: TInteger32;
begin
Result := False;
Column := Columns.ValidItemWithPosition(Event.Position.X);
Row := Rows.ValidItemWithPosition(Event.Position.Y);
if IsMouseLeftDown then
begin
Result := MouseAction = TTableControlMouseAction.Selecting;
if Result then
HandleMouseSelection(Row, Column, TMouseSelectionMode.Expand);
end;
end;
function TTableControl.MouseLeftUp(Event: TMouseButtonEvent): TBoolean;
begin
Result := True;
MouseAction := TTableControlMouseAction.None;
end;
procedure TTableControl.Paint(Canvas: TCanvas);
var
Index: TInteger32;
begin
if Model <> nil then
begin
// TODO: The editor should be positioned somewhere else
if Editor <> nil then
Editor.Bounds := GetEditorBounds();
if Rows.HasValidVisibleItems() and Columns.HasValidVisibleItems() then
for Index := Columns.FirstVisible to Columns.LastVisible do
PaintColumn(Canvas, Index);
HandleFocusAndEditor(Canvas);
PaintGridLines(Canvas);
end;
end;
procedure TTableControl.ScrollFocusedCellIntoView();
begin
ScrollCellIntoView(RowHeadersControl.FocusedHeader, ColumnHeadersControl.FocusedHeader);
end;
procedure TTableControl.ScrollRowIntoView(Row: TInteger32);
var
Rectangle: TInteger32Rectangle;
begin
if Rows.HasValidVisibleItems() then
begin
Rectangle := GetVisibleRectangle();
Rectangle.Top := Rows.LowerBound(Row);
Rectangle.Bottom := Rows.RunningSize(Row);
MakeRectangleVisible(Rectangle);
end;
end;
function TTableControl.GetScrollSize(AvailableSize: TInteger32Size): TInteger32Size;
begin
Result := TInteger32Size.New(Maximum(Columns.TotalScrollSize(AvailableSize.Width), AvailableSize.Width), Maximum(Rows.TotalScrollSize(Height), AvailableSize.Height));
end;
procedure TTableControl.SetFocusedColumn(const Value: TInteger32);
begin
SetFocusedCell(RowHeadersControl.FocusedHeader, Value);
end;
procedure TTableControl.SetFocusedRow(const Value: TInteger32);
begin
SetFocusedCell(Value, ColumnHeadersControl.FocusedHeader);
end;
procedure TTableControl.SetIsRowFiltering(const Value: TBoolean);
begin
if Value <> IsRowFiltering then
begin
if IsRowFiltering then
begin
ColumnFiltersControl.Height := 0;
ColumnFiltersHeadersControl.Height := 0;
if ColumnFiltersControl.HasFocusInComposition then
ColumnHeadersControl.RequestFocusInComposition();
end
else
begin
ColumnFiltersControl.Height := 17;
ColumnFiltersHeadersControl.Height := 17;
end;
UpdateRowFilter();
RethinkScrollBars();
end;
end;
procedure TTableControl.SetModel(const Value: TTableModel);
begin
if Value <> Model then
begin
DetachFromModel();
FModel := Value;
if FModel <> nil then
FModel := FModel.Embellish();
AttachToModel();
DetermineRowCount();
SetFocusedCell(Rows.Validate(0), Columns.Validate(0));
ColumnCountChanged();
if (Model <> nil) and not ColumnHeadersControl.Model.HasHomogeneousValues() then
AutoSizeAction := TAutoSizeActionPreferred.Create();
end;
end;
procedure TTableControl.ToggleRowFiltering();
begin
IsRowFiltering := not IsRowFiltering;
if IsRowFiltering then
ColumnFiltersControl.Enter();
end;
procedure TTableControl.NewSelection(KeepOld: TBoolean = False);
begin
Selection.StartNew(SelectionDimension, TInteger32Point.New(ColumnHeadersControl.FocusedHeader, RowHeadersControl.FocusedHeader), KeepOld);
end;
procedure TTableControl.Save();
begin
if Model <> nil then
Model.Save();
end;
procedure TTableControl.ScrollCellIntoView(Row: TInteger32; Column: TInteger32);
begin
MakeRectangleVisible(GetCellBounds(Row, Column));
end;
procedure TTableControl.ScrollColumnIntoView(Column: TInteger32);
var
Rectangle: TInteger32Rectangle;
begin
if Columns.HasValidVisibleItems() then
begin
Rectangle := GetVisibleRectangle();
Rectangle.Left := Columns.LowerBound(Column);
Rectangle.Right := Columns.RunningSize(Column);
MakeRectangleVisible(Rectangle);
end;
end;
procedure TTableControl.SetFocusedCell(Row, Column: TInteger32);
var
OldFocusedRow: TInteger32;
OldFocusedColumn: TInteger32;
begin
OldFocusedRow := RowHeadersControl.FocusedHeader;
OldFocusedColumn := ColumnHeadersControl.FocusedHeader;
if Row <> RowHeadersControl.FocusedHeader then
begin
StopInlineEditing(True);
RowHeadersControl.FocusedHeader := Rows.Validate(Row);
end;
if Column <> ColumnHeadersControl.FocusedHeader then
begin
StopInlineEditing(True);
ColumnHeadersControl.FocusedHeader := Columns.Validate(Column);
end;
if (RowHeadersControl.FocusedHeader <> OldFocusedRow) or (ColumnHeadersControl.FocusedHeader <> OldFocusedColumn) then
begin
AdjustEditor();
if RowHeadersControl.FocusedHeader <> OldFocusedRow then
AdjustRowEditors();
if ColumnHeadersControl.FocusedHeader <> OldFocusedColumn then
AdjustColumnEditors();
FireFocusedCellChanged();
Invalidate();
end;
end;
procedure TTableControl.SetFocusedCells(const Value: TTableCells);
begin
if Value <> FocusedCells then
begin
FFocusedCells.Free();
FFocusedCells := Value;
end;
end;
procedure TTableControl.SetSelectionDimension(const Value: T2dSelectionDimension);
var
ControlToFocus: TControl;
begin
if (Value <> SelectionDimension) and (Value in AllowedSelectionDimensions) then
begin
ControlToFocus := nil;
case Value of
T2dSelectionDimension.None:
ControlToFocus := TopLeftHeaderControl;
T2dSelectionDimension.Cells:
ControlToFocus := Self;
T2dSelectionDimension.Rows:
ControlToFocus := RowHeadersControl;
T2dSelectionDimension.Columns:
ControlToFocus := ColumnHeadersControl;
end;
if ControlToFocus <> nil then
ControlToFocus.RequestFocusInComposition();
StopInlineEditing(True);
AdjustEditor();
AdjustRowEditors();
AdjustColumnEditors();
NewSelection();
FireFocusedCellChanged();
Invalidate();
end;
end;
procedure TTableControl.SetShowGridLines(const Value: TGridLines);
begin
if Value <> ShowGridLines then
begin
FShowGridLines := Value;
Invalidate();
end;
end;
procedure TTableControl.SetVisibleCells(const Value: TTableCells);
begin
if Value <> VisibleCells then
begin
FVisibleCells.Free();
FVisibleCells := Value;
end;
end;
procedure TTableControl.PaintGridLines(Canvas: TCanvas);
var
Index: TInteger32;
Left: TInteger32;
Top: TInteger32;
Bottom: TInteger32;
Right: TInteger32;
First: TInteger32;
Last: TInteger32;
begin
Canvas.Stroke := TStroke.Create(TNamedColor.LightGray, 1);
Top := 0;
if Rows.FirstVisible > 0 then
Inc(Top, Rows.RunningSize(Rows.FirstVisible - 1));
Bottom := Rows.RunningSize(Rows.LastVisible) - 1;
First := Columns.FirstVisible;
Last := Minimum(Columns.LastVisible, Columns.Last - 1);
if TGridLine.Vertical in ShowGridLines then
begin
Left := -1;
if First > 0 then
Inc(Left, Columns.RunningSize(First - 1));
for Index := First to Last do
begin
Inc(Left, Columns.Size(Index));
Canvas.VerticalLine(Left + 0.5, TFloatingPoint64Interval.New(Top, Bottom));
end;
end;
if (Columns.Count > 0) and (TGridLine.Right in ShowGridLines) then
begin
Left := Columns.TotalSize() - 1;
Canvas.VerticalLine(Left + 0.5, TFloatingPoint64Interval.New(Top, Bottom));
end;
Left := 0;
if (Columns.Count > 0) and (Columns.LastVisible <> -1) then
begin
Top := -1;
Right := Columns.RunningSize(Columns.LastVisible) - 1;
First := Rows.FirstVisible;
if First > 0 then
Inc(Top, Rows.RunningSize(First - 1));
if TGridLine.Horizontal in ShowGridLines then
for Index := Rows.FirstVisible to Rows.LastVisible do
begin
Inc(Top, Rows.Size(Index));
Canvas.HorizontalLine(TFloatingPoint64Interval.New(Left, Right), Top + 0.5);
end;
if (Rows.Count > 0) and (TGridLine.Bottom in ShowGridLines) then
begin
Top := Rows.TotalSize() - 1;
Canvas.HorizontalLine(TFloatingPoint64Interval.New(Left, Right), Top + 0.5);
end;
end;
end;
function TTableControl.PasteFromClipboard(): TBoolean;
begin
Result := (Rows.Count = 0) and RowHeadersControl.PasteFromClipboard();
end;
procedure TTableControl.DetermineVisibleCells();
var
VisibleRectangle: TInteger32Rectangle;
begin
VisibleRectangle := GetVisibleRectangle();
Columns.DetermineVisible(VisibleRectangle.Left, VisibleRectangle.Width);
Rows.DetermineVisible(VisibleRectangle.Top, VisibleRectangle.Height);
UpdateTableCells();
end;
procedure TTableControl.AutoSizeColumns(Action: TAutoSizeAction);
begin
if (Columns.Count > 0) and (Rows.Count > 0) then
begin
if Action is TAutoSizeActionPreferred then
AutoSizeColumnsPreferred(Action as TAutoSizeActionPreferred)
else if Action is TAutoSizeActionFixed then
AutoSizeColumnsFixed(Action as TAutoSizeActionFixed)
else
raise EUnknownEnumerationValue.Create('Unknown auto size action: ' + Action.ClassName);
Invalidate();
end;
end;
procedure TTableControl.AutoSizeColumnsFixed(Action: TAutoSizeActionFixed);
var
Index: TInteger32;
begin
for Index := 0 to Columns.Count - 1 do
Columns.SetItemSize(Index, Action.Size, False);
end;
procedure TTableControl.AutoSizeColumnsPreferred(Action: TAutoSizeActionPreferred);
var
Cells: TTableCells;
ColumnIndex: TInteger32;
RowIndex: TInteger32;
ColumnWidth: TInteger32;
Painter: TControl;
Headers: TTableHeaders;
begin
Cells := Model.GetCells(TInteger32Size.New(Columns.Count, Minimum(Rows.Count, 100)));
if TAutoSizeOption.IncludeCaption in Action.Options then
Headers := ColumnHeadersControl.Model.GetHeaders(TInteger32Interval.New(0, Columns.Count - 1))
else
Headers := nil;
for ColumnIndex := 0 to Cells.Bounds.Width - 1 do
begin
if TAutoSizeOption.IncludeCaption in Action.Options then
ColumnWidth := TPurposeFont.WindowText.TextSize(Headers[ColumnIndex].Caption.ToText()).Width + 4 // TODO: The +4 is arbitrary and should be determined dynamically
else
ColumnWidth := 0;
for RowIndex := 0 to Cells.Bounds.Height - 1 do
begin
Painter := CreatePainterForCell(Cells, RowIndex, ColumnIndex);
try
ColumnWidth := Maximum(ColumnWidth, Painter.GetPreferredSize(TInteger32Size.Maximum).Width);
finally
Painter.Free();
end;
end;
if not ColumnHeadersControl.HiddenHeaders.Contains(ColumnIndex) then
Columns.SetItemSize(ColumnIndex, Maximum(ColumnWidth + 6, Action.MinimumSize), False);
end;
Cells.Free();
Headers.Free();
end;
procedure TTableControl.BoundsChanged(const OldBounds: TInteger32Rectangle; const NewBounds: TInteger32Rectangle);
begin
inherited BoundsChanged(OldBounds, NewBounds);
if OldBounds.Size <> NewBounds.Size then
begin
Columns.SetTotalSize(Width, TDeltaSizeMethod.Distribute);
Rows.SetTotalSize(Height, TDeltaSizeMethod.Distribute);
DetermineVisibleCells();
Invalidate();
end;
end;
procedure TTableControl.SizeColumnToFitContents(ColumnIndex: TInteger32; InPlace: TBoolean; MinimumSize: TInteger32 = 100);
var
ColumnCells: TTableCells;
Index: TInteger32;
ColumnWidth: TInteger32;
Painter: TControl;
begin
if Rows.Count > 0 then
begin
ColumnCells := Model.GetCells(TInteger32Rectangle.New(TInteger32Point.New(ColumnIndex, Rows.FirstVisible), TInteger32Size.New(1, Rows.VisibleCount)));
ColumnWidth := 0;
for Index := VisibleCells.Bounds.Top to VisibleCells.Bounds.Top + ColumnCells.Bounds.Height - 1 do
begin
Painter := CreatePainterForCell(ColumnCells, Index, ColumnIndex);
ColumnWidth := Maximum(ColumnWidth, Painter.GetPreferredSize(TInteger32Size.Maximum).Width);
Painter.Free();
end;
if not ColumnHeadersControl.HiddenHeaders.Contains(ColumnIndex) then
Columns.SetItemSize(ColumnIndex, Maximum(ColumnWidth + 6, MinimumSize), InPlace);
RethinkScrollBars();
ColumnCells.Free();
Invalidate();
end;
end;
procedure TTableControl.SortOnColumn(Column: TInteger32);
begin
SortColumns.ToggleSort(Column);
Model.SortRows(SortColumns);
end;
procedure TTableControl.SortOnRow(Row: TInteger32);
begin
// TODO: Implement
end;
procedure TTableControl.PaintColumn(Canvas: TCanvas; Column: TInteger32);
var
Color: TRgbColor;
Index: TInteger32;
begin
Color := ColumnColorModel.GetColor(Column);
for Index := Rows.FirstVisible to Rows.LastVisible do
PaintCell(Canvas, Index, Column, Color);
end;
procedure TTableControl.IndicateFocus(Canvas: TCanvas);
var
Top: TInteger32;
Left: TInteger32;
Width: TInteger32;
Height: TInteger32;
LessWidth: TInteger32;
LessHeight: TInteger32;
begin
if ReceivesKeyboardInput and (Columns.Count > 0) and (Rows.Count > 0) then
begin
if Rows.IsVisible(RowHeadersControl.FocusedHeader) then
begin
Top := Rows.LowerBound(RowHeadersControl.FocusedHeader);
Height := Rows.Size(RowHeadersControl.FocusedHeader);
Left := Columns.LowerBound(ColumnHeadersControl.FocusedHeader);
if
((ColumnHeadersControl.FocusedHeader < Columns.Last) and (TGridLine.Vertical in ShowGridLines))
or ((ColumnHeadersControl.FocusedHeader = Columns.Last) and (TGridLine.Right in ShowGridLines))
then
LessWidth := 1
else
LessWidth := 0;
Width := Columns.Size(ColumnHeadersControl.FocusedHeader);
if ((RowHeadersControl.FocusedHeader < Rows.Last) and (TGridLine.Horizontal in ShowGridLines)) or
((RowHeadersControl.FocusedHeader = Rows.Last) and (TGridLine.Bottom in ShowGridLines)) then
LessHeight := 1
else
LessHeight := 0;
PaintFocusRectangle(Canvas, TInteger32Rectangle.New(Left, Top, Left + Width - 1 - LessWidth, Top + Height - 1 - LessHeight));
end;
end;
end;
procedure TTableControl.PaintCell(Canvas: TCanvas; Row: TInteger32; Column: TInteger32; Color: TRgbColor);
var
Painter: TControl;
Rectangle: TInteger32Rectangle;
IsFocusedCell: TBoolean;
IsEditingCell: TBoolean;
begin
Rectangle := GetCellBounds(Row, Column);
IsFocusedCell := (Row = RowHeadersControl.FocusedHeader) and (Column = ColumnHeadersControl.FocusedHeader) and (Editor <> nil);
IsEditingCell := IsInlineEditing and IsFocusedCell;
Canvas.Fill := TFill.Create(Color);
Canvas.FillRectangle(Rectangle);
if not IsEditingCell and Selection.Selected[TInteger32Point.New(Column, Row)] then
begin
Canvas.Fill := TFill.Create(SelectionColor(ReceivesKeyboardInput or CompositionReceivesKeyboardInput or ControlInCompositionHasFocus));
Canvas.OverlayRectangle(Rectangle, 0.6);
end;
Inc(Rectangle.Left, 2);
Dec(Rectangle.Right, 4);
if not IsFocusedCell then
begin
Painter := CreatePainterForCell(VisibleCells, Row, Column);
Painter.Bounds := Rectangle;
PaintChildControl(Canvas, Painter);
Painter.Free();
end;
end;
function TTableControl.GetEditorBounds(): TInteger32Rectangle;
begin
Result := GetCellBounds(RowHeadersControl.FocusedHeader, ColumnHeadersControl.FocusedHeader);
Inc(Result.Left, 2);
Dec(Result.Right, 4);
end;
function TTableControl.GetFocusedColumn(): TInteger32;
begin
Result := ColumnHeadersControl.FocusedHeader;
end;
function TTableControl.GetFocusedObject(): TValuePath;
begin
Result := nil;
// TODO: Do we need to check SelectionDimension?
case SelectionDimension of
T2dSelectionDimension.Cells:
if (RowHeadersControl.FocusedHeaderIsValid() and ColumnHeadersControl.FocusedHeaderIsValid()) then
Result := Path.Extend([FocusedCells[0][0].Value]);
T2dSelectionDimension.Rows:
Result := RowHeadersControl.GetFocusedObject();
end;
if Result = nil then
Result := inherited GetFocusedObject();
end;
function TTableControl.GetFocusedRow(): TInteger32;
begin
Result := RowHeadersControl.FocusedHeader;
end;
procedure TTableControl.ScrollEditorIntoView();
begin
ScrollFocusedCellIntoView();
end;
procedure TTableControl.SetEditorValue(Value: TValue);
var
SelectedBlocks: T2dSelectionBlocks;
Index: TInteger32;
begin
SelectedBlocks := Selection.GetSelectedCells();
for Index := 0 to SelectedBlocks.Count - 1 do
Model.SetValueForCells(SelectedBlocks[Index], Value);
UpdateTableCells();
AdjustEditor();
FireFocusedCellChanged();
Invalidate();
end;
function TTableControl.KeyDown(Event: TKeyDownEvent): TBoolean;
begin
Result := inherited KeyDown(Event);
if not Result then
begin
Result := True;
if not IsInlineEditing and (Event.Key = TKey.Insert) then
Result := HandleInsert(Event.Modifiers)
else if not IsInlineEditing and (Event.Key = TKey.Delete) then
Result := HandleDelete(Event.Modifiers)
else if Event.Key = TKey.F5 then
Refresh()
else if Event.Key = TKey.Enter then
FireDefaultActionExecuted()
else if (Event.Key = TKey.A) and (Event.Modifiers = [TKeyModifier.Control]) then
SelectAllCells()
else if (Event.Key = TKey.G) and (Event.Modifiers = [TKeyModifier.Control]) then
CreateRowGroupingTable()
else if (Event.Key = TKey.D) and (Event.Modifiers = [TKeyModifier.Control]) then
CreateTableDrawing()
else if (Event.Key = TKey.P) and (Event.Modifiers = [TKeyModifier.Control]) then
CreatePivotTable()
else if (Event.Key = TKey.S) and (Event.Modifiers = [TKeyModifier.Control]) then
Save()
else
Result := False;
end;
end;
procedure TTableControl.LostFocus();
begin
inherited LostFocus();
AdjustEditor();
end;
procedure TTableControl.DeleteAll();
var
Blocks: TInteger32OrderedDisjointIntervalList;
begin
// TODO: We assume here we want to remove all rows, instead we should also remove all columns when editing a matrix
if Rows.Count > 0 then
begin
Blocks := TInteger32OrderedDisjointIntervalList.New();
Blocks.AddNonOverlapping(TInteger32Interval.New(0, Rows.Count - 1));
RowHeadersControl.Model.Delete(Blocks);
end;
end;
procedure TTableControl.DeleteCells();
var
SelectedBlocks: T2dSelectionBlocks;
Index: TInteger32;
begin
SelectedBlocks := Selection.GetSelectedCells();
for Index := 0 to SelectedBlocks.Count - 1 do
Model.ClearValuesForCells(SelectedBlocks[Index]);
UpdateTableCells();
end;
procedure TTableControl.InsertColumn(Index: TInteger32);
var
ColumnToFocus: TInteger32;
begin
if Model <> nil then
begin
ColumnToFocus := ColumnHeadersControl.Model.Insert(Index);
if ColumnToFocus <> -1 then
begin
UpdateTableCells();
SetFocusedCell(RowHeadersControl.FocusedHeader, ColumnToFocus);
AdjustEditor();
AdjustColumnEditors();
ScrollFocusedCellIntoView();
NewSelection();
Invalidate();
end;
end;
end;
procedure TTableControl.InsertRow(Index: TInteger32);
var
RowToFocus: TInteger32;
begin
if Model <> nil then
begin
RowToFocus := RowHeadersControl.Model.Insert(Index);
if RowToFocus <> -1 then
begin
UpdateTableCells();
SetFocusedCell(RowToFocus, ColumnHeadersControl.FocusedHeader);
AdjustEditor();
AdjustRowEditors();
ScrollFocusedCellIntoView();
SelectionDimension := T2dSelectionDimension.Rows;
NewSelection();
Invalidate();
end;
end;
end;
function TTableControl.GetIsRowFiltering(): TBoolean;
begin
Result := ColumnFiltersControl.Height > 0;
end;
function TTableControl.GetObjectSelection(): TObjectSelection;
begin
// TODO: Do we need to check SelectionDimension?
Result := nil;
case SelectionDimension of
T2dSelectionDimension.Rows:
Result := RowHeadersControl.GetObjectSelection();
end;
end;
procedure TTableControl.DeleteColumns();
var
SelectedColumns: TInteger32OrderedDisjointIntervalList;
begin
if (Model <> nil) and ColumnHeadersControl.FocusedHeaderIsValid() then
begin
SelectedColumns := Selection.GetSelectedColumns;
ColumnHeadersControl.Model.Delete(SelectedColumns);
SetFocusedCell(Rows.Validate(RowHeadersControl.FocusedHeader), Columns.Validate(SelectedColumns[0].Low));
AdjustEditor();
AdjustColumnEditors();
ScrollFocusedCellIntoView();
NewSelection();
TEventDistributionCenter.Instance.PostChanged(Selection);
UpdateTableCells();
Invalidate();
end;
end;
procedure TTableControl.DeleteRows();
var
SelectedRows: TInteger32OrderedDisjointIntervalList;
begin
if (Model <> nil) and RowHeadersControl.FocusedHeaderIsValid() then
begin
SelectedRows := Selection.GetSelectedRows();
RowHeadersControl.Model.Delete(SelectedRows);
SetFocusedCell(Rows.Validate(SelectedRows[0].Low), Columns.Validate(ColumnHeadersControl.FocusedHeader));
AdjustEditor();
AdjustRowEditors();
ScrollFocusedCellIntoView();
NewSelection();
TEventDistributionCenter.Instance.PostChanged(Selection);
UpdateTableCells();
Invalidate();
end;
end;
procedure TTableControl.DescendantFiresEvent(Descendant: TControl; Event: TEvent);
begin
if Event is TControlInvalidatedEvent then
begin
if (Editor <> nil) and Editor.HierarchyContainsControl(Descendant) then
Invalidate()
else if Descendant = Self then
begin
if ColumnHeadersControl <> nil then
ColumnHeadersControl.Invalidate(); // TODO: This probably is a hack and should be solved properly by passing around events
if RowHeadersControl <> nil then
RowHeadersControl.Invalidate(); // TODO: This probably is a hack and should be solved properly by passing around events
if TopLeftHeaderControl <> nil then
TopLeftHeaderControl.Invalidate(); // TODO: This probably is a hack and should be solved properly by passing around events
if ColumnFiltersControl <> nil then
ColumnFiltersControl.Invalidate(); // TODO: This probably is a hack and should be solved properly by passing around events
inherited DescendantFiresEvent(Descendant, Event);
end
else
inherited DescendantFiresEvent(Descendant, Event);
end
else
inherited DescendantFiresEvent(Descendant, Event);
end;
procedure TTableControl.DescendantRequestsFocus(Descendant: TControl);
begin
if Descendant = Self then
inherited DescendantRequestsFocus(Descendant);
end;
destructor TTableControl.Destroy();
begin
DetachFromModel();
if Editor <> nil then
Editor.Listeners.Remove(Self);
VisibleCells.Free();
FocusedCells.Free();
ColumnColorModel.Free();
Selection.Free();
SortColumns.Free();
AutoRefreshTimer.Free();
AutoSizeAction.Free();
FilterExpression.ReleaseReference();
inherited Destroy();
end;
procedure TTableControl.AdjustColumnEditors();
begin
// TODO: The following should be improved by better determining which editors should be updated
if ColumnHeadersControl <> nil then
ColumnHeadersControl.AdjustEditor();
if ColumnFiltersControl <> nil then
ColumnFiltersControl.AdjustEditor();
end;
procedure TTableControl.AdjustEditor();
var
Cell: TTypedValue;
ValuePath: TValuePath;
ControlFactory: TControlFactory;
begin
RemoveEditor();
if (Model <> nil) and RowHeadersControl.FocusedHeaderIsValid() and ColumnHeadersControl.FocusedHeaderIsValid() then
begin
FocusedCells := Model.GetCells(TInteger32Point.New(ColumnHeadersControl.FocusedHeader, RowHeadersControl.FocusedHeader));
if (CompositionReceivesKeyboardInput or ControlInCompositionHasFocus) and (SelectionDimension = T2dSelectionDimension.Cells) then
begin
Cell := FocusedCells[0][0];
ControlFactory := GetControlFactory();
ValuePath := Path.Extend([Cell.Value]);
ValuePath.AddReference();
try
FEditor := ControlFactory.CreateControl(ControlFactory, TControlPurpose.Cell, ValuePath, Cell);
finally
ValuePath.ReleaseReference();
end;
if Editor <> nil then
begin
Editor.AllowedModes := Editor.AllowedModes * MethodsToControlModes(Cell.AllowedMethods);
Editor.Mode := TControlMode.Display;
Editor.Bounds := GetEditorBounds();
Editor.IsEditor := True;
Editor.FocusAbility := TFocusability.None;
Editor.Listeners.Add(Self);
ChildControls.Add(Editor);
end;
end;
end;
end;
procedure TTableControl.AdjustRowEditors();
begin
// TODO: The following should be improved by better determining which editors should be updated
if RowHeadersControl <> nil then
RowHeadersControl.AdjustEditor();
end;
function TTableControl.GetCellBounds(Row, Column: TInteger32): TInteger32Rectangle;
var
Left: TInteger32;
Top: TInteger32;
begin
Left := Columns.LowerBound(Column);
Top := Rows.LowerBound(Row);
Result := TInteger32Rectangle.New(Left, Top, Left + Columns.Size(Column) - 1, Top + Rows.Size(Row) - 1);
end;
function TTableControl.GetColumns(): TCumulativeSizes;
begin
Result := ColumnHeadersControl.Sizes;
end;
procedure TTableControl.SelectAllCells();
begin
Selection.StartNew(T2dSelectionDimension.Cells, TInteger32Point.New(0, 0), False);
Selection.Expand(T2dSelectionDimension.Cells, TInteger32Point.New(Columns.Count - 1, Rows.Count - 1));
Invalidate();
end;
procedure TTableControl.SelectAllColumns();
begin
Selection.StartNew(T2dSelectionDimension.Columns, TInteger32Point.New(0, 0), False);
Selection.Expand(T2dSelectionDimension.Columns, TInteger32Point.New(Columns.Count - 1, 0));
Invalidate();
end;
procedure TTableControl.SelectAllRows();
begin
Selection.StartNew(T2dSelectionDimension.Rows, TInteger32Point.New(0, 0), False);
Selection.Expand(T2dSelectionDimension.Rows, TInteger32Point.New(0, Rows.Count - 1));
Invalidate();
end;
function TTableControl.GetSelectionDimension(): T2dSelectionDimension;
begin
if ColumnHeadersControl.HasFocusInComposition then
Result := T2dSelectionDimension.Columns
else if RowHeadersControl.HasFocusInComposition then
Result := T2dSelectionDimension.Rows
else if Self.HasFocusInComposition then
Result := T2dSelectionDimension.Cells
else
Result := T2dSelectionDimension.None;
end;
procedure TTableControl.SetAllowedSelectionDimensions(const Value: T2dSelectionDimensions);
begin
if Value <> AllowedSelectionDimensions then
begin
FAllowedSelectionDimensions := Value;
if not (SelectionDimension in AllowedSelectionDimensions) then
SelectionDimension := ValidateSelectionDimension(SelectionDimension);
end;
end;
procedure TTableControl.SetAutoRefreshInterval(const Value: TInteger32);
begin
if Value <> FAutoRefreshInterval then
begin
FAutoRefreshInterval := Value;
AutoRefreshTimer.Free();
AutoRefreshTimer := nil;
if Value > 0 then
begin
AutoRefreshTimer := TLowResolutionSynchronousTimer.Create();
AutoRefreshTimer.Delay_Milliseconds := Value;
AutoRefreshTimer.Schedule(Self);
end;
end;
end;
procedure TTableControl.SetAutoSizeAction(const Value: TAutoSizeAction);
begin
if Value <> AutoSizeAction then
begin
FAutoSizeAction.Free();
FAutoSizeAction := Value;
ValidateAutoSizeAction();
end;
end;
function TTableControl.HandleDelete(KeyModifiers: TKeyModifiers): TBoolean;
begin
Result := True;
DeleteCells();
end;
function TTableControl.HandleEvent(Event: TEvent): TBoolean;
var
TableModelEvent: TTableModelEvent;
TableHeaderModelEvent: TTableHeaderModelEvent;
WillBeFreedEvent: TWillBeFreedEvent;
begin
Result := False;
if Event is TWillBeFreedEvent then
begin
WillBeFreedEvent := Event as TWillBeFreedEvent;
if WillBeFreedEvent.Object_ = RowHeadersControl then
begin
RowHeadersControl.Listeners.Remove(Self);
FRowHeadersControl := nil;
end
else if WillBeFreedEvent.Object_ = ColumnHeadersControl then
begin
ColumnHeadersControl.Listeners.Remove(Self);
FColumnHeadersControl := nil;
end;
end
else if Event is TTableModelEvent then
begin
TableModelEvent := Event as TTableModelEvent;
Result := TableModelEvent.Model = Model;
if Result then
begin
if TableModelEvent is TTableModelChangedEvent then
Changed()
else if TableModelEvent is TTableModelCellsChangedEvent then
CellsChanged((TableModelEvent as TTableModelCellsChangedEvent).Bounds);
end;
end
else if Event is TTableHeaderModelEvent then
begin
TableHeaderModelEvent := Event as TTableHeaderModelEvent;
Result := True;
if TableHeaderModelEvent.Model = RowHeadersControl.Model then
RowCountChanged()
else if TableHeaderModelEvent.Model = ColumnHeadersControl.Model then
ColumnCountChanged()
else
Result := False;
end
else if (Event is TTimerFired) and (Event.GetSender() = AutoRefreshTimer) then
begin
Result := True;
Refresh();
AutoRefreshTimer.Schedule(Self);
end;
if not Result then
Result := inherited HandleEvent(Event);
end;
procedure TTableControl.HandleFocusAndEditor(Canvas: TCanvas);
begin
if not IsInlineEditing then
begin
Caret := nil;
IndicateFocus(Canvas);
end;
end;
function TTableControl.HandleInsert(KeyModifiers: TKeyModifiers): TBoolean;
begin
Result := True;
if (Rows.Count = 0) or (Columns.Count = 0) then
begin
if Columns.Count = 0 then
InsertColumn(0)
else
InsertRow(0);
end
else
Result := False;
end;
procedure TTableControl.HandleMouseSelection(Row, Column: TInteger32; SelectionMode: TMouseSelectionMode);
begin
case SelectionDimension of
T2dSelectionDimension.Cells:
begin
SetFocusedCell(Row, Column);
ScrollFocusedCellIntoView();
end;
T2dSelectionDimension.Rows:
begin
SetFocusedRow(Row);
ScrollRowIntoView(RowHeadersControl.FocusedHeader);
end;
T2dSelectionDimension.Columns:
begin
SetFocusedColumn(Column);
ScrollColumnIntoView(ColumnHeadersControl.FocusedHeader);
end;
end;
if SelectionMode in [TMouseSelectionMode.New, TMouseSelectionMode.NewAndKeepOld] then
NewSelection(SelectionMode = TMouseSelectionMode.NewAndKeepOld)
else
ExpandSelection();
Invalidate();
end;
function TTableControl.HandlesNavigationDimension(NavigationDimension: TValidNavigationDimension): TBoolean;
begin
Result := True;
end;
procedure TTableControl.HasBeenBoundToLayout();
begin
inherited HasBeenBoundToLayout();
ValidateAutoSizeAction();
end;
function TTableControl.GetEditor(): TControl;
begin
Result := FEditor;
end;
function TTableControl.CreatePainterForCell(Cells: TTableCells; Row, Column: TInteger32): TControl;
var
Cell: TTypedValue;
ValuePath: TValuePath;
ControlFactory: TControlFactory;
begin
Cell := Cells[Row - Cells.Bounds.Top][Column - Cells.Bounds.Left];
ControlFactory := GetControlFactory();
ValuePath := Path.Extend([Cell.Value]);
ValuePath.AddReference();
try
Result := ControlFactory.CreateControl(ControlFactory, TControlPurpose.Cell, ValuePath, Cell);
Result.SuppressInvalidate := True;
Result.ParentControl := Self;
Result.Mode := TControlMode.Display;
finally
ValuePath.ReleaseReference();
end;
end;
procedure TTableControl.ColumnCountChanged();
begin
Columns.Count := ColumnHeadersControl.Model.GetCount();
ColumnHeadersControl.DetermineHiddenHeaders();
if ColumnFiltersControl <> nil then
ColumnFiltersControl.ColumnCountChanged();
RethinkScrollBars();
DetermineVisibleCells();
UpdateTableCells();
SetFocusedCell(Rows.Validate(RowHeadersControl.FocusedHeader), Columns.Validate(ColumnHeadersControl.FocusedHeader));
NewSelection();
SortColumns.Clear();
AdjustEditor();
AdjustColumnEditors();
Invalidate();
end;
procedure TTableControl.UpdateRowFilter();
var
Index: TInteger32;
Expressions: TList<TExpression>;
FilterValue: TText;
begin
FilterExpression.ReleaseReference();
Expressions := TObjectList<TExpression>.Create();
Expressions.ElementManager := TReferenceCounter<TExpression>.Create();
for Index := 0 to ColumnFiltersControl.FilterValues.Count - 1 do
begin
FilterValue := ColumnFiltersControl.FilterValues[Index];
if FilterValue.Count > 0 then
Expressions.Add(TExpression.ParseExpression(Index, FilterValue));
end;
FilterExpression := TExpression.AndAll(Expressions);
FilterExpression.AddReference();
if Model <> nil then
Model.FilterRows(FilterExpression);
end;
procedure TTableControl.UpdateTableCells();
var
RowsVisible: TInteger32;
ColumnsVisible: TInteger32;
Offset: TInteger32Point;
CellBounds: TInteger32Rectangle;
begin
if (Rows.Count > 0) and (Columns.Count > 0) then
begin
if Columns.HasValidVisibleItems() then
begin
ColumnsVisible := Columns.VisibleCount;
Offset.X := Columns.FirstVisible;
end
else
begin
ColumnsVisible := 0;
Offset.X := 0;
end;
if Rows.HasValidVisibleItems() then
begin
RowsVisible := Rows.VisibleCount;
Offset.Y := Rows.FirstVisible;
end
else
begin
RowsVisible := 0;
Offset.Y := 0;
end;
CellBounds := TInteger32Rectangle.New(Offset, TInteger32Size.New(ColumnsVisible, RowsVisible));
if (Model <> nil) and (RowsVisible > 0) and (ColumnsVisible > 0) then
VisibleCells := Model.GetCells(CellBounds)
else
begin
VisibleCells := TTableCells.Create();
VisibleCells.Bounds := CellBounds;
end;
end
else
VisibleCells := TTableCells.Create();
RowHeadersControl.Update();
ColumnHeadersControl.Update();
end;
procedure TTableControl.Refresh();
begin
if Model <> nil then
Model.Refresh();
end;
procedure TTableControl.RemoveEditor();
begin
if Editor <> nil then
begin
ChildControls.Remove(Editor);
Editor.Free();
FEditor := nil;
end;
end;
procedure TTableControl.ResetEditorValue();
begin
AdjustEditor();
end;
procedure TTableControl.ResetSort();
begin
SortColumns.Clear();
Model.SortRows(SortColumns);
end;
procedure TTableControl.RowCountChanged();
begin
DetermineRowCount();
RethinkScrollBars();
DetermineVisibleCells();
SetFocusedCell(Rows.Validate(RowHeadersControl.FocusedHeader), Columns.Validate(ColumnHeadersControl.FocusedHeader));
NewSelection();
AdjustEditor();
AdjustRowEditors();
Invalidate();
end;
procedure TTableControl.AttachToModel();
begin
if Model <> nil then
begin
Model.AddReference();
Model.Listeners.Add(Self);
RowHeadersControl.Model := Model.GetRowModel();
RowHeadersControl.Model.Listeners.Add(Self);
ColumnHeadersControl.Model := Model.GetColumnModel();
ColumnHeadersControl.Model.Listeners.Add(Self);
end;
end;
procedure TTableControl.CellsChanged(const Cells: TInteger32Rectangle);
begin
UpdateTableCells();
if Cells.Contains(TInteger32Point.New(ColumnHeadersControl.FocusedHeader, RowHeadersControl.FocusedHeader)) then
AdjustEditor();
Invalidate();
end;
procedure TTableControl.Changed();
begin
DetermineRowCount();
Columns.Count := ColumnHeadersControl.Model.GetCount();
if ColumnFiltersControl <> nil then
ColumnFiltersControl.ColumnCountChanged();
RethinkScrollBars();
DetermineVisibleCells();
SetFocusedCell(Rows.Validate(RowHeadersControl.FocusedHeader), Columns.Validate(ColumnHeadersControl.FocusedHeader));
AdjustEditor();
AdjustColumnEditors();
AdjustRowEditors();
NewSelection();
SortColumns.Clear();
Invalidate();
end;
function TTableControl.ShouldForwardKeyDownDownChain(Event: TKeyDownEvent): TBoolean;
begin
Result := IsInlineEditing or ((Event.Modifiers <> [TKeyModifier.Control]) or (not (Event.Key in [TKey.C, TKey.X, TKey.V])));
end;
procedure TTableControl.DetachFromModel();
begin
if Model <> nil then
begin
if RowHeadersControl <> nil then
RowHeadersControl.Model := nil;
if ColumnHeadersControl <> nil then
ColumnHeadersControl.Model := nil;
Model.Listeners.Remove(Self);
Model.GetRowModel().Listeners.Remove(Self);
Model.GetColumnModel().Listeners.Remove(Self);
Model.ReleaseReference();
end;
end;
function TTableControl.DetermineMouseSelectionMode(SelectionDimension: T2dSelectionDimension; KeyModifiers: TKeyModifiers): TMouseSelectionMode;
begin
if SelectionDimension = Self.SelectionDimension then
Result := KeyModifiersToMouseSelectionMode(KeyModifiers)
else
Result := TMouseSelectionMode.New;
end;
procedure TTableControl.DetermineRowCount();
var
RowCount: TInteger32;
begin
if Model <> nil then
RowCount := RowHeadersControl.Model.GetCount()
else
RowCount := 0;
Rows.Count := RowCount;
end;
function TTableControl.Navigate(Direction: TNavigationDirection; KeyModifiers: TKeyModifiers): TBoolean;
var
Expand: TBoolean;
NavigationDimension: TNavigationDimension;
begin
Result := False;
if (Rows.Count > 0) and (Columns.Count > 0) then
begin
Expand := TKeyModifier.Shift in KeyModifiers;
if Direction = TNavigationDirection.Forward then
Result := GoForward()
else if Direction = TNavigationDirection.Backward then
Result := GoBackward()
else
begin
NavigationDimension := NavigationDirectionToDimension(Direction);
if (NavigationDimension <> TNavigationDimension.None) and (not IsInlineEditing or not Editor.HandlesNavigationDimension(NavigationDimension)) then
Result := NavigateDimension(NavigationDimension, Direction, KeyModifiers, Expand);
end;
end;
end;
function TTableControl.NavigateDimension(NavigationDimension: TValidNavigationDimension; Direction: TNavigationDirection; KeyModifiers: TKeyModifiers; Expand: TBoolean): TBoolean;
begin
case NavigationDimension of
TNavigationDimension.Horizontal:
Result := NavigateHorizontally(Direction, KeyModifiers, Expand);
TNavigationDimension.Vertical:
Result := NavigateVertically(Direction, KeyModifiers, Expand);
else
Result := False;
end;
end;
function TTableControl.NavigateVertically(Direction: TNavigationDirection; KeyModifiers: TKeyModifiers; Expand: TBoolean): TBoolean;
var
Offset: TInteger32;
VisibleRectangle: TInteger32Rectangle;
begin
Result := False;
Offset := 0;
VisibleRectangle := GetVisibleRectangle();
if (Direction in [TNavigationDirection.Up, TNavigationDirection.PageUp, TNavigationDirection.VerticalHome]) and (RowHeadersControl.FocusedHeader <> 0) then
begin
case Direction of
TNavigationDirection.Up:
if not (TKeyModifier.Control in KeyModifiers) then Offset := -1;
TNavigationDirection.PageUp:
Offset := Rows.ValidItemWithPosition(Rows.RunningSize(RowHeadersControl.FocusedHeader) - VisibleRectangle.Height) - RowHeadersControl.FocusedHeader;
TNavigationDirection.VerticalHome:
Offset := -RowHeadersControl.FocusedHeader;
end;
end
else if (Direction in [TNavigationDirection.Down, TNavigationDirection.PageDown, TNavigationDirection.VerticalEnd]) and (RowHeadersControl.FocusedHeader <> Rows.Last) then
begin
case Direction of
TNavigationDirection.Down:
if not (TKeyModifier.Control in KeyModifiers) then Offset := 1;
TNavigationDirection.PageDown:
Offset := Rows.ValidItemWithPosition(Rows.LowerBound(RowHeadersControl.FocusedHeader) + VisibleRectangle.Height) - RowHeadersControl.FocusedHeader;
TNavigationDirection.VerticalEnd:
Offset := Rows.Count - RowHeadersControl.FocusedHeader - 1;
end;
end;
if Offset <> 0 then
begin
Result := True;
FocusedRow := RowHeadersControl.FocusedHeader + Offset;
if Expand then
ExpandSelection()
else
NewSelection();
ScrollFocusedCellIntoView();
end
else if not Expand and (Selection.Area > 1) then
begin
Result := True;
Invalidate();
NewSelection();
end;
end;
function TTableControl.NavigateHorizontally(Direction: TNavigationDirection; KeyModifiers: TKeyModifiers; Expand: TBoolean): TBoolean;
var
Offset: TInteger32;
begin
Offset := 0;
Result := False;
if (Direction in [TNavigationDirection.Left, TNavigationDirection.HorizontalHome]) and (ColumnHeadersControl.FocusedHeader <> 0) then
begin
case Direction of
TNavigationDirection.Left:
if not (TKeyModifier.Control in KeyModifiers) then Offset := -1;
TNavigationDirection.HorizontalHome:
Offset := -ColumnHeadersControl.FocusedHeader;
end;
end
else if (Direction in [TNavigationDirection.Right, TNavigationDirection.HorizontalEnd]) and (ColumnHeadersControl.FocusedHeader <> Columns.Last) then
begin
case Direction of
TNavigationDirection.Right:
if not (TKeyModifier.Control in KeyModifiers) then Offset := 1;
TNavigationDirection.HorizontalEnd:
Offset := Columns.Count - ColumnHeadersControl.FocusedHeader - 1;
end;
end;
if Offset <> 0 then
begin
Result := True;
FocusedColumn := ColumnHeadersControl.FocusedHeader + Offset;
if Expand then
ExpandSelection()
else
NewSelection();
ScrollFocusedCellIntoView();
end
else if not Expand and (Selection.Area > 1) then
begin
Result := True;
Invalidate();
NewSelection();
end;
end;
procedure TTableControl.FireFocusedCellChanged();
var
FocusedControl: TControl;
begin
FocusedControl := ControlWithCompositionFocus();
if FocusedControl = RowHeadersControl then
RowHeadersControl.FireFocusedHeaderChanged()
else if FocusedControl = ColumnHeadersControl then
ColumnHeadersControl.FireFocusedHeaderChanged()
else
FireEvent(TControlFocusedItemChangedEvent.Create(FocusedControl));
end;
procedure TTableControl.ValidateAutoSizeAction();
begin
if (AutoSizeAction <> nil) and IsBoundToLayout() then
begin
AutoSizeColumns(AutoSizeAction);
AutoSizeAction := nil;
end;
end;
function TTableControl.ValidateSelectionDimension(Dimension: T2dSelectionDimension): T2dSelectionDimension;
begin
if not (Dimension in AllowedSelectionDimensions) then
begin
if T2dSelectionDimension.Cells in AllowedSelectionDimensions then
Result := T2dSelectionDimension.Cells
else if T2dSelectionDimension.Rows in AllowedSelectionDimensions then
Result := T2dSelectionDimension.Rows
else if T2dSelectionDimension.Columns in AllowedSelectionDimensions then
Result := T2dSelectionDimension.Columns
else
Result := T2dSelectionDimension.Cells;
end
else
Result := Dimension;
end;
procedure TTableControl.VisibleRectangleChanged();
begin
if Model <> nil then
DetermineVisibleCells();
inherited VisibleRectangleChanged();
end;
function TTableControl.Embellish(): TControl;
var
ControlBorder: TControlBorder;
begin
ControlBorder := TControlBorder.Create();
ControlBorder.Control := ScrollPanel;
Result := ControlBorder;
end;
procedure TTableControl.Enter();
begin
inherited Enter();
SelectionDimension := ValidateSelectionDimension(T2dSelectionDimension.Cells);
end;
procedure TTableControl.EnterFromBottom(Fast: TBoolean);
begin
inherited EnterFromBottom(Fast);
if not Fast then
begin
FocusedRow := Rows.LastVisible;
NewSelection();
ScrollColumnIntoView(ColumnHeadersControl.FocusedHeader);
end;
end;
procedure TTableControl.EnterFromLeft(Fast: TBoolean);
begin
inherited EnterFromLeft(Fast);
if not Fast then
begin
FocusedColumn := Columns.FirstVisible;
NewSelection();
ScrollColumnIntoView(ColumnHeadersControl.FocusedHeader);
end;
end;
procedure TTableControl.EnterFromRight(Fast: TBoolean);
begin
inherited EnterFromRight(Fast);
if not Fast then
begin
FocusedColumn := Columns.LastVisible;
NewSelection();
ScrollColumnIntoView(ColumnHeadersControl.FocusedHeader);
end;
end;
procedure TTableControl.EnterFromTop(Fast: TBoolean);
begin
inherited EnterFromTop(Fast);
if not Fast then
begin
FocusedRow := Rows.FirstVisible;
NewSelection();
ScrollColumnIntoView(ColumnHeadersControl.FocusedHeader);
end;
end;
procedure TTableControl.ExpandSelection();
begin
Selection.Expand(SelectionDimension, TInteger32Point.New(ColumnHeadersControl.FocusedHeader, RowHeadersControl.FocusedHeader));
end;
function TTableControl.CopyToClipboard(): TBoolean;
var
SelectedBlocks: T2dSelectionBlocks;
Index: TInteger32;
Writer: TTabDelimitedWriter;
Stream: TTextOutputStream;
ClipBoard: TClipBoard;
begin
SelectedBlocks := Selection.GetSelectedCells();
Stream := TTextOutputStream.Create(TCharacterEncoding.Windows1252);
Writer := TTabDelimitedWriter.Create(Stream, True);
for Index := 0 to SelectedBlocks.Count - 1 do
begin
WriteCells(Writer, SelectedBlocks[Index]);
if Index < SelectedBlocks.Count - 1 then
Writer.NextLine();
end;
Writer.Flush();
ClipBoard := GetClipBoard();
ClipBoard.SetAsText(Stream.GetValue());
Writer.Free();
// TODO: We update cells now because after repeated calls to TTableModel.GetCells(), VisibleCells could be out of date.
// However, instead we should probably convert TTypedValue to a TReferenceCountedObject to allow proper memory
// management.
UpdateTableCells();
Result := True;
end;
procedure TTableControl.WriteCells(Writer: TTabDelimitedWriter; Block: TInteger32Rectangle);
var
RowIndex: TInteger32;
ColumnIndex: TInteger32;
Row: TTableRow;
Cells: TTableCells;
begin
Cells := Model.GetCells(Block);
for RowIndex := 0 to Cells.Bounds.Height - 1 do
begin
Row := Cells[RowIndex];
for ColumnIndex := 0 to Cells.Bounds.Width - 1 do
Writer.WriteCell(Row[ColumnIndex].Value.ToText());
if RowIndex <> Cells.Bounds.Height - 1 then
Writer.NextLine();
end;
Cells.Free();
end;
function TTableControl.GetPreferredSize(AvailableSize: TInteger32Size): TInteger32Size;
begin
Result.Width := Columns.TotalSize();
Result.Height := Maximum(Rows.Count, 3) * Rows.DefaultSize;
end;
function TTableControl.GetRows(): TCumulativeSizes;
begin
Result := RowHeadersControl.Sizes;
end;
{ TColumnHeadersControl }
function TColumnHeadersControl.ClearSelectionOnFocus(): TBoolean;
begin
Result := TableControl.Selection.CurrentSelectionPart.Dimension <> T2dSelectionDimension.Columns;
end;
constructor TColumnHeadersControl.Create();
begin
inherited Create();
Sizes := CreateColumns();
Height := 20;
end;
function TColumnHeadersControl.CreateColumns(): TSizableCumulativeSizes;
begin
Result := TSizableCumulativeSizes.Create();
Result.MinimumSize := 10;
Result.DefaultSize := 100;
end;
function TColumnHeadersControl.GetHeaderBounds(Index: TInteger32): TInteger32Rectangle;
var
Left: TInteger32;
begin
Left := Sizes.LowerBound(Index);
Result := TInteger32Rectangle.New(Left, 0, Left + Sizes.Size(Index) - 1, Bounds.Bottom);
end;
function TColumnHeadersControl.GetCursorForPosition(const Position: TInteger32Point): TCursor;
begin
if Sizes.ItemWithResizePosition(Position.X, 2) <> -1 then
Result := CursorManager.HorizontalSplit
else
Result := CursorManager.Arrow;
end;
function TColumnHeadersControl.HandleDelete(KeyModifiers: TKeyModifiers): TBoolean;
begin
Result := True;
TableControl.DeleteColumns();
end;
procedure TColumnHeadersControl.HandleFocusAndEditor(Canvas: TCanvas);
begin
if not IsInlineEditing then
begin
Caret := nil;
IndicateFocus(Canvas);
end;
end;
function TColumnHeadersControl.HandleInsert(KeyModifiers: TKeyModifiers): TBoolean;
begin
Result := True;
if KeyModifiers = [TKeyModifier.Control] then
TableControl.InsertColumn(Sizes.Count)
else
TableControl.InsertColumn(Maximum(0, FocusedHeader));
end;
function TColumnHeadersControl.HasSortIndicator(Index: TInteger32): TBoolean;
begin
Result := SortColumns.IsFirstInSortOrder(Index);
end;
procedure TColumnHeadersControl.IndicateFocus(Canvas: TCanvas);
var
FocusRectangleLeft: TInteger32;
begin
if ReceivesKeyboardInput then
begin
FocusRectangleLeft := Sizes.LowerBound(FocusedHeader);
PaintFocusRectangle(Canvas, TInteger32Rectangle.New(
FocusRectangleLeft,
1,
FocusRectangleLeft + Sizes.Size(FocusedHeader) - 2,
Height - 3
));
end;
end;
function TColumnHeadersControl.GetGluedPosition(X: TInteger32): TInteger32;
var
VisibleRectangle: TInteger32Rectangle;
begin
VisibleRectangle := TableControl.GetVisibleRectangle();
if (X >= VisibleRectangle.Width - 8) and (X <= VisibleRectangle.Width + 8) then
Result := VisibleRectangle.Width - 1
else
Result := X;
end;
function TColumnHeadersControl.KeyDown(Event: TKeyDownEvent): TBoolean;
begin
Result := inherited KeyDown(Event);
if not Result then
begin
Result := True;
if not IsInlineEditing and (Event.Key = TKey.Insert) then
Result := HandleInsert(Event.Modifiers)
else if not IsInlineEditing and (Event.Key = TKey.Delete) then
Result := HandleDelete(Event.Modifiers)
else if Event.Key = TKey.Enter then
TableControl.FireDefaultActionExecuted()
else if (Event.Key = TKey.F) and (Event.Modifiers = [TKeyModifier.Control]) then
TableControl.ToggleRowFiltering()
else if (Event.Key = TKey.A) and (Event.Modifiers = [TKeyModifier.Control]) then
TableControl.SelectAllColumns()
else
Result := False;
end;
end;
function TColumnHeadersControl.KeyPress(Event: TKeyPressEvent): TBoolean;
var
StepSize: TInteger32;
begin
Result := ((Event.Character = TUnicode.PLUS_SIGN) or (Event.Character = TUnicode.HYPHEN_MINUS)) and FocusedHeaderIsValid() and not IsInlineEditing;
if Result then
begin
if TKeyModifier.Shift in Event.Modifiers then
StepSize := 5
else
StepSize := 1;
if Event.Character = TUnicode.HYPHEN_MINUS then
StepSize := -StepSize;
Sizes.SetItemSize(FocusedHeader, Sizes.Size(FocusedHeader) + StepSize, TKeyModifier.Control in Event.Modifiers);
TableControl.Invalidate();
end;
end;
function TColumnHeadersControl.KeyUp(Event: TKeyUpEvent): TBoolean;
begin
Result := (Event.Key = TKey.Space) and (FocusedHeaderIsValid() and not IsInlineEditing);
if Result then
begin
if Event.Modifiers = [] then
TableControl.SortOnColumn(FocusedHeader)
else if TKeyModifier.Shift in Event.Modifiers then
TableControl.SizeColumnToFitContents(FocusedHeader, TKeyModifier.Control in Event.Modifiers);
end;
end;
function TColumnHeadersControl.MouseLeftDown(Event: TMouseButtonEvent): TBoolean;
var
Column: TInteger32;
begin
GetMouseManager().ControlWithCapture := Self;
Result := True;
Column := Sizes.ItemWithPosition(Event.Position.X);
ResizeColumn := Sizes.ItemWithResizePosition(Event.Position.X, 2);
if ResizeColumn <> -1 then
begin
if Event.Count = 2 then
TableControl.SizeColumnToFitContents(ResizeColumn, Event.KeyModifiers = [TKeyModifier.Control])
else
begin
ResizeStart := Event.Position.X - Sizes.Size(ResizeColumn);
MouseAction := TTableControlMouseAction.Resizing;
if ResizeColumn = Sizes.Last then
Sizes.FixedTotal := False;
ShowResizeHint(Sizes.Size(ResizeColumn));
end;
end
else if Column <> -1 then
begin
DownHeader := Column;
MouseAction := TTableControlMouseAction.PressingButton;
Invalidate();
end;
end;
function TColumnHeadersControl.MouseLeftUp(Event: TMouseButtonEvent): TBoolean;
var
SelectionMode: TMouseSelectionMode;
VisibleRectangle: TInteger32Rectangle;
begin
Result := True;
if MouseAction = TTableControlMouseAction.PressingButton then
begin
if TableControl.Model.SupportsRowSorting and (Event.KeyModifiers = []) then
TableControl.SortOnColumn(DownHeader)
else
begin
SelectionMode := TableControl.DetermineMouseSelectionMode(T2dSelectionDimension.Columns, Event.KeyModifiers);
TableControl.SelectionDimension := T2dSelectionDimension.Columns;
TableControl.HandleMouseSelection(TableControl.FocusedRow, DownHeader, SelectionMode);
RequestFocus();
end;
end
else if MouseAction = TTableControlMouseAction.Resizing then
begin
if ResizeColumn = Sizes.Last then
begin
VisibleRectangle := TableControl.GetVisibleRectangle();
Sizes.FixedTotal := VisibleRectangle.Width = Sizes.TotalSize;
end;
end;
GetHintWindow().HideHint();
MouseAction := TTableControlMouseAction.None;
DownHeader := -1;
Invalidate();
end;
function TColumnHeadersControl.MouseMove(Event: TMouseMoveEvent): TBoolean;
var
Column: TInteger32;
ResizeEnd: TInteger32;
SelectionMode: TMouseSelectionMode;
VisibleRectangle: TInteger32Rectangle;
begin
Result := False;
Column := Sizes.ValidItemWithPosition(Event.Position.X);
if IsMouseLeftDown then
begin
Result := True;
if MouseAction = TTableControlMouseAction.PressingButton then
begin
MouseAction := TTableControlMouseAction.Selecting;
SelectionMode := TableControl.DetermineMouseSelectionMode(T2dSelectionDimension.Columns, Event.KeyModifiers);
TableControl.SelectionDimension := T2dSelectionDimension.Columns;
TableControl.HandleMouseSelection(TableControl.FocusedRow, Column, SelectionMode);
RequestFocus();
end
else if MouseAction = TTableControlMouseAction.Resizing then
begin
if ResizeColumn = Sizes.Last then
ResizeEnd := GetGluedPosition(Event.Position.X)
else
ResizeEnd := Event.Position.X;
VisibleRectangle := TableControl.GetVisibleRectangle();
Sizes.SetTotalSize(VisibleRectangle.Width, TDeltaSizeMethod.LastColumn);
Sizes.SetItemSize(ResizeColumn, ResizeEnd - ResizeStart, Event.KeyModifiers = [TKeyModifier.Control]);
TableControl.RethinkScrollBars();
TableControl.DetermineVisibleCells();
ShowResizeHint(Sizes.Size(ResizeColumn));
TableControl.Invalidate();
end
else if MouseAction = TTableControlMouseAction.Selecting then
begin
TableControl.HandleMouseSelection(TableControl.FocusedRow, Column, TMouseSelectionMode.Expand);
RequestFocus();
end
else
Result := False;
end;
end;
function TColumnHeadersControl.Navigate(Direction: TNavigationDirection; KeyModifiers: TKeyModifiers): TBoolean;
begin
Result := NavigationDirectionToDimension(Direction) = TNavigationDimension.Horizontal;
if Result then
Result := TableControl.NavigateHorizontally(Direction, KeyModifiers, TKeyModifier.Shift in KeyModifiers);
end;
procedure TColumnHeadersControl.ScrollEditorIntoView();
begin
TableControl.ScrollColumnIntoView(FocusedHeader);
if Editor <> nil then
Editor.Bounds := GetEditorBounds();
end;
procedure TColumnHeadersControl.Paint(Canvas: TCanvas);
var
Index: TInteger32;
HeaderBounds: TInteger32Rectangle;
CaptionBounds: TInteger32Rectangle;
IsFocusedColumn: TBoolean;
IsEditingColumn: TBoolean;
begin
// TODO: The editor should be positioned somewhere else
if Editor <> nil then
Editor.Bounds := GetEditorBounds();
if Sizes.HasValidVisibleItems() then
begin
for Index := Sizes.FirstVisible to Sizes.LastVisible do
begin
HeaderBounds := GetHeaderBounds(Index);
CaptionBounds := GetCaptionBounds(Index);
IsFocusedColumn := Index = FocusedHeader;
IsEditingColumn := IsInlineEditing and IsFocusedColumn;
PaintHeaderButton(Canvas, HeaderBounds, HeaderIsDown(Index), TButtonEdgeStyle.Size, TButtonEdgeStyle.Shadow);
if SortColumns.IsFirstInSortOrder(Index) then
PaintSortIndicator(Canvas, TInteger32Point.New(CaptionBounds.Right, CaptionBounds.Top - 1), SortColumns[0].SortOrder);
if not IsEditingColumn and TableControl.Selection.SelectedColumn[Index] then
begin
Canvas.Fill := TFill.Create(SelectionColor(ReceivesKeyboardInput or CompositionReceivesKeyboardInput or ControlInCompositionHasFocus));
Canvas.OverlayRectangle(HeaderBounds, 0.6);
end;
if not IsFocusedColumn or (Editor = nil) then
PaintCaption(Canvas, CaptionBounds, TDocumentToTextCompiler.RenderToText(TTranslator.Default, Headers[Index].Caption));
end;
end;
HandleFocusAndEditor(Canvas);
end;
procedure TColumnHeadersControl.PaintSortIndicator(Canvas: TCanvas; const Position: TInteger32Point; SortOrder: TSortOrder);
var
GlyphButton: TGlyphButton;
begin
Canvas.Fill := TFill.Create(TNamedColor.LightGray);
GlyphButton := TGlyphButton.Create();
GlyphButton.Bounds := TInteger32Rectangle.New(Position, TInteger32Size.New(18, 18));
case SortOrder of
TSortOrder.Ascending:
GlyphButton.Glyph := TGlyph.DownwardTriangle;
TSortOrder.Descending:
GlyphButton.Glyph := TGlyph.UpwardTriangle;
else
raise EUnknownEnumerationValue.Create('Unknown sort order');
end;
PaintChildControl(Canvas, GlyphButton);
GlyphButton.Free();
end;
function TColumnHeadersControl.GetPreferredSize(AvailableSize: TInteger32Size): TInteger32Size;
begin
Result := TInteger32Size.New(TableControl.Columns.TotalSize(), Height);
end;
function TColumnHeadersControl.ShouldForwardKeyPressDownChain(Event: TKeyPressEvent): TBoolean;
begin
Result :=
not ((Event.Character = VK_SPACE) or (Event.Character = TUnicode.PLUS_SIGN) or (Event.Character = TUnicode.HYPHEN_MINUS))
or IsInlineEditing;
end;
procedure TColumnHeadersControl.ShowResizeHint(Width: TInteger32);
var
Path: TValuePath;
begin
Path := TValuePath.Create([TTextValue.Create('Width: ' + Integer32ToText(Width) + ' pixels')]);
Path.AddReference();
try
GetHintWindow().ShowAtCursor(Path);
finally
Path.ReleaseReference();
end;
end;
procedure TColumnHeadersControl.TableControlChanged();
begin
if TableControl <> nil then
SortColumns := TableControl.SortColumns
else
SortColumns := nil;
end;
{ TRowHeadersControl }
function TRowHeadersControl.ClearSelectionOnFocus(): TBoolean;
begin
Result := TableControl.Selection.CurrentSelectionPart.Dimension <> T2dSelectionDimension.Rows;
end;
procedure TRowHeadersControl.Delete();
begin
if TableControl.SelectionDimension = T2dSelectionDimension.Rows then
TableControl.DeleteRows();
end;
function TRowHeadersControl.GetContextMenuTargetBounds(): TInteger32Rectangle;
begin
if FocusedHeaderIsValid() then
Result := GetHeaderBounds(FocusedHeader)
else
Result := inherited GetContextMenuTargetBounds();
end;
function TRowHeadersControl.GetEditorBounds(): TInteger32Rectangle;
begin
Result := inherited GetEditorBounds();
Result.Right := Result.Left; // TODO: This hides the control from the user and displays the row indices instead, is this the right way?
end;
function TRowHeadersControl.GetFocusedObject(): TValuePath;
var
TypedValue: TTypedValue;
begin
if (TableControl.SelectionDimension = T2dSelectionDimension.Rows) and FocusedHeaderIsValid() then
begin
TypedValue := Model.GetValue(FocusedHeader);
TypedValue.AddReference();
Result := TableControl.Path.Extend([TypedValue.Value]);
TypedValue.ReleaseReference();
end
else
Result := inherited GetFocusedObject();
end;
function TRowHeadersControl.GetObjectSelection(): TObjectSelection;
var
SelectedRows: TInteger32OrderedDisjointIntervalList;
Interval: TInteger32Interval;
IntervalIndex: TInteger32;
Value: TTypedValue;
Values: TList<TTypedValue>;
begin
if (TableControl.SelectionDimension = T2dSelectionDimension.Rows) and FocusedHeaderIsValid() then
begin
SelectedRows := Selection.GetSelectedRows();
Result := TObjectSelection.Create();
for IntervalIndex := 0 to SelectedRows.Count - 1 do
begin
Interval := SelectedRows[IntervalIndex];
Values := Model.GetValues(Interval);
for Value in Values do
Result.Objects.Add(TableControl.Path.Extend([Value.Value]));
Values.Free();
end;
end
else
Result := nil;
end;
function TRowHeadersControl.HandleDelete(KeyModifiers: TKeyModifiers): TBoolean;
begin
Result := True;
Delete();
end;
function TRowHeadersControl.HandleInsert(KeyModifiers: TKeyModifiers): TBoolean;
begin
Result := True;
if KeyModifiers = [TKeyModifier.Control] then
InsertLast()
else
Insert();
end;
procedure TRowHeadersControl.Insert();
begin
TableControl.InsertRow(Maximum(0, FocusedHeader));
end;
procedure TRowHeadersControl.InsertLast();
begin
TableControl.InsertRow(Sizes.Count);
end;
function TRowHeadersControl.KeyDown(Event: TKeyDownEvent): TBoolean;
begin
Result := inherited KeyDown(Event);
if not Result then
begin
Result := True;
if not IsInlineEditing and (Event.Key = TKey.Insert) then
Result := HandleInsert(Event.Modifiers)
else if not IsInlineEditing and (Event.Key = TKey.Delete) then
Result := HandleDelete(Event.Modifiers)
else if Event.Key = TKey.Enter then
TableControl.FireDefaultActionExecuted()
else if (Event.Key = TKey.A) and (Event.Modifiers = [TKeyModifier.Control]) then
TableControl.SelectAllRows()
else
Result := False;
end;
end;
function TRowHeadersControl.MouseLeftDown(Event: TMouseButtonEvent): TBoolean;
var
Row: TInteger32;
begin
Result := True;
Row := Sizes.ItemWithPosition(Event.Position.Y);
GetMouseManager().ControlWithCapture := Self;
if Event.Count = 2 then
TableControl.FireDefaultActionExecuted()
else
begin
DownHeader := Row;
if Row <> -1 then
MouseAction := TTableControlMouseAction.PressingButton;
Invalidate();
end;
end;
function TRowHeadersControl.MouseLeftUp(Event: TMouseButtonEvent): TBoolean;
var
SelectionMode: TMouseSelectionMode;
begin
Result := True;
//MouseInEditor := False;
if MouseAction = TTableControlMouseAction.PressingButton then
begin
if TableControl.Model.SupportsColumnSorting and (Event.KeyModifiers = []) then
TableControl.SortOnRow(DownHeader)
else
begin
SelectionMode := TableControl.DetermineMouseSelectionMode(T2dSelectionDimension.Rows, Event.KeyModifiers);
TableControl.SelectionDimension := T2dSelectionDimension.Rows;
TableControl.HandleMouseSelection(DownHeader, TableControl.FocusedColumn, SelectionMode);
RequestFocus();
end;
end;
DownHeader := -1;
MouseAction := TTableControlMouseAction.None;
Invalidate();
end;
function TRowHeadersControl.MouseMove(Event: TMouseMoveEvent): TBoolean;
var
Row: TInteger32;
SelectionMode: TMouseSelectionMode;
begin
Result := False;
Row := Sizes.ValidItemWithPosition(Event.Position.Y);
if IsMouseLeftDown then
begin
Result := True;
if MouseAction = TTableControlMouseAction.PressingButton then
begin
MouseAction := TTableControlMouseAction.Selecting;
SelectionMode := TableControl.DetermineMouseSelectionMode(T2dSelectionDimension.Rows, Event.KeyModifiers);
TableControl.SelectionDimension := T2dSelectionDimension.Rows;
TableControl.HandleMouseSelection(Row, TableControl.FocusedColumn, SelectionMode);
RequestFocus();
end
else if MouseAction = TTableControlMouseAction.Selecting then
begin
TableControl.HandleMouseSelection(Row, TableControl.FocusedColumn, TMouseSelectionMode.Expand);
RequestFocus();
end
else
Result := False;
end;
end;
function TRowHeadersControl.MouseRightDown(Event: TMouseButtonEvent): TBoolean;
begin
Result := True;
if Event.Count = 1 then
FireEvent(TControlContextMenuEvent.Create(TableControl, Event.Position));
end;
function TRowHeadersControl.Navigate(Direction: TNavigationDirection; KeyModifiers: TKeyModifiers): TBoolean;
begin
Result := NavigationDirectionToDimension(Direction) = TNavigationDimension.Vertical;
if Result then
Result := TableControl.NavigateVertically(Direction, KeyModifiers, TKeyModifier.Shift in KeyModifiers);
end;
procedure TRowHeadersControl.ScrollEditorIntoView();
begin
TableControl.ScrollRowIntoView(FocusedHeader);
if Editor <> nil then
Editor.Bounds := GetEditorBounds();
end;
function TRowHeadersControl.PasteFromClipboard(): TBoolean;
var
Value: TText;
Stream: TInputStream;
Rows: TTextList;
ClipBoard: TClipBoard;
begin
Result := True;
ClipBoard := GetClipBoard();
Value := Clipboard.GetAsText();
Stream := Value.CreateInputStream();
Rows := TTextList.Create();
Rows.Read(Stream, TCharacterEncoding.Windows1252); // TODO: Assess encoding
Stream.Free();
TableControl.Model.InsertTabDelimited(Rows);
Rows.Free();
end;
{ TTableHeadersControl }
procedure TTableHeadersControl.AdjustEditor();
var
Path: TValuePath;
ControlFactory: TControlFactory;
begin
if Editor <> nil then
begin
ChildControls.Remove(Editor);
Editor.Free();
FEditor := nil;
end;
EditorValue := nil;
if (Model <> nil) and Model.SupportsEditing() and FocusedHeaderIsValid() then
begin
EditorValue := Model.GetValue(FocusedHeader);
ControlFactory := GetControlFactory();
Path := TValuePath.Create([EditorValue.Value]);
Path.AddReference();
try
FEditor := ControlFactory.CreateControl(ControlFactory, TControlPurpose.Cell, Path, EditorValue);
finally
Path.ReleaseReference();
end;
if Editor <> nil then
begin
Editor.Mode := TControlMode.Display;
Editor.Bounds := GetEditorBounds();
Editor.IsEditor := True;
Editor.FocusAbility := TFocusability.None;
Editor.Listeners.Add(Self);
ChildControls.Add(Editor);
end;
end;
end;
constructor TTableHeadersControl.Create();
begin
inherited Create();
DownHeader := -1;
Focusability := TFocusability.Focusable;
end;
destructor TTableHeadersControl.Destroy();
begin
Headers.Free();
Sizes.Free();
inherited Destroy();
end;
procedure TTableHeadersControl.DetermineHiddenHeaders();
var
Iterator: TIterator<TInteger32>;
begin
HiddenHeaders := Model.GetDefaultHiddenHeaders();
Iterator := HiddenHeaders.CreateIterator();
while Iterator.IsValid() do
begin
Sizes.Visible[Iterator.Current] := False;
Iterator.GotoNext();
end;
Iterator.Free();
end;
procedure TTableHeadersControl.FireFocusedHeaderChanged();
begin
FireEvent(TControlFocusedItemChangedEvent.Create(Self));
end;
function TTableHeadersControl.FocusedHeaderIsValid(): TBoolean;
begin
Result := (FocusedHeader <> -1) and (FocusedHeader < Sizes.Count);
end;
function TTableHeadersControl.GetCaptionBounds(Index: TInteger32): TInteger32Rectangle;
begin
Result := GetHeaderBounds(Index);
Inc(Result.Left, 4);
Dec(Result.Right, 4);
Dec(Result.Bottom, 3);
if HasSortIndicator(Index) then
Dec(Result.Right, 16);
if HeaderIsDown(Index) then
Result := Result.Offset(TInteger32Point.New(1, 1));
end;
function TTableHeadersControl.GetEditor(): TControl;
begin
Result := FEditor;
end;
function TTableHeadersControl.GetEditorBounds(): TInteger32Rectangle;
begin
Result := GetCaptionBounds(FocusedHeader);
end;
function TTableHeadersControl.HasSortIndicator(Index: TInteger32): TBoolean;
begin
Result := False;
end;
function TTableHeadersControl.HeaderIsDown(Index: TInteger32): TBoolean;
begin
Result := (MouseAction = TTableControlMouseAction.PressingButton) and (Index = DownHeader);
end;
procedure TTableHeadersControl.PaintHeaderButton(Canvas: TCanvas; const Bounds: TInteger32Rectangle; Down: TBoolean; RightEdge, BottomEdge: TButtonEdgeStyle);
var
Polyline: T2dPolyline;
begin
if Down then
begin
Canvas.Fill := TFill.Create(TPurposeColor.Button.Pressed);
Canvas.FillRectangle(Bounds);
Canvas.Stroke := TStroke.Create(TNamedColor.DarkGray, 1);
Canvas.DrawRectangle(Bounds);
Polyline := T2dPolyline.Create();
Polyline.Points.Add(T2dFloatingPoint64Point.New(Bounds.Right - 1, Bounds.Top + 1));
Polyline.Points.Add(T2dFloatingPoint64Point.New(Bounds.Left + 1, Bounds.Top + 1));
Polyline.Points.Add(T2dFloatingPoint64Point.New(Bounds.Left + 1, Bounds.Bottom));
Canvas.Stroke := TStroke.Create(TNamedColor.LightGray, 1);
Canvas.StrokeGeometry(Polyline);
end
else
begin
Canvas.Fill := TFill.Create(TPurposeColor.Panel);
Canvas.FillRectangle(Bounds);
if BottomEdge = TButtonEdgeStyle.Shadow then
begin
Canvas.Stroke := TStroke.Create(TPurposeColor.Button.Shadow1, 1);
Canvas.HorizontalLine(TInteger32Interval.New(Bounds.Left, Bounds.Right + 1), Bounds.Bottom);
Canvas.Stroke := TStroke.Create(TPurposeColor.Button.Shadow2, 1);
Canvas.HorizontalLine(TInteger32Interval.New(Bounds.Left, Bounds.Right + 1), Bounds.Bottom - 1);
Canvas.Stroke := TStroke.Create(TPurposeColor.Button.Shadow3, 1);
Canvas.HorizontalLine(TInteger32Interval.New(Bounds.Left, Bounds.Right + 1), Bounds.Bottom - 2);
end
else
begin
Canvas.Stroke := TStroke.Create(TPurposeColor.Button.Shadow2, 1);
Canvas.HorizontalLine(TInteger32Interval.New(Bounds.Left + 3, Bounds.Right - 4), Bounds.Bottom - 1);
Canvas.Stroke := TStroke.Create(TNamedColor.White, 1);
Canvas.HorizontalLine(TInteger32Interval.New(Bounds.Left + 3, Bounds.Right - 4), Bounds.Bottom);
end;
if RightEdge = TButtonEdgeStyle.Shadow then
begin
Canvas.Stroke := TStroke.Create(TPurposeColor.Button.Shadow1, 1);
Canvas.VerticalLine(Bounds.Right, TInteger32Interval.New(Bounds.Top, Bounds.Bottom + 1));
Canvas.Stroke := TStroke.Create(TPurposeColor.Button.Shadow2, 1);
Canvas.VerticalLine(Bounds.Right - 1, TInteger32Interval.New(Bounds.Top, Bounds.Bottom + 1));
Canvas.Stroke := TStroke.Create(TPurposeColor.Button.Shadow3, 1);
Canvas.VerticalLine(Bounds.Right - 2, TInteger32Interval.New(Bounds.Top, Bounds.Bottom + 1));
end
else
begin
Canvas.Stroke := TStroke.Create(TPurposeColor.Button.Shadow2, 1);
Canvas.VerticalLine(Bounds.Right - 1, TInteger32Interval.New(Bounds.Top + 3, Bounds.Bottom - 4));
Canvas.Stroke := TStroke.Create(TNamedColor.White, 1);
Canvas.VerticalLine(Bounds.Right, TInteger32Interval.New(Bounds.Top + 3, Bounds.Bottom - 4));
end;
end;
end;
procedure TTableHeadersControl.SetEditorValue(Value: TValue);
begin
Model.SetValue(FocusedHeader, Value);
Update();
Invalidate();
end;
procedure TTableHeadersControl.Update();
begin
Headers.Free();
if Model <> nil then
Headers := Model.GetHeaders(TInteger32Interval.New(Sizes.FirstVisible, Sizes.LastVisible))
else
Headers := nil;
end;
{ TTopLeftHeaderControl }
constructor TTopLeftHeaderControl.Create();
begin
inherited Create();
Focusability := TFocusability.FocusOnMouse;
end;
function TTopLeftHeaderControl.KeyUp(Event: TKeyUpEvent): TBoolean;
begin
Result := (Event.Key = TKey.Space) and not IsInlineEditing;
if Result then
TableControl.ResetSort();
end;
function TTopLeftHeaderControl.MouseLeftDown(Event: TMouseButtonEvent): TBoolean;
begin
Result := True;
DownHeader := 0;
MouseAction := TTableControlMouseAction.PressingButton;
GetMouseManager().ControlWithCapture := Self;
Invalidate();
end;
function TTopLeftHeaderControl.MouseLeftUp(Event: TMouseButtonEvent): TBoolean;
begin
Result := True;
TableControl.ResetSort();
// HintWindow.HideHint();
DownHeader := -1;
MouseAction := TTableControlMouseAction.None;
Invalidate();
end;
function TTopLeftHeaderControl.MouseMove(Event: TMouseMoveEvent): TBoolean;
var
NewDown: TBoolean;
Bounds: TInteger32Rectangle;
begin
Result := IsMouseLeftDown;
if Result then
begin
// if MouseAction = TTableControlMouseAction.Resizing then
// begin
// RowButtonWidth := X - ResizeStart;
// ShowResizeHint(RowButtonWidth);
// Invalidate;
// end
// else
// begin
Bounds := Self.Bounds;
NewDown := Bounds.Contains(Event.Position);
if NewDown <> HeaderIsDown(0) then
begin
if NewDown then
DownHeader := 0
else
DownHeader := -1;
Invalidate();
end;
end;
// end;
end;
procedure TTopLeftHeaderControl.Paint(Canvas: TCanvas);
begin
PaintHeaderButton(Canvas, Bounds.Size, HeaderIsDown(0), TButtonEdgeStyle.Size, TButtonEdgeStyle.Size);
if HasFocus then
begin
Canvas.Fill := TFill.Create(SelectionColor(ReceivesKeyboardInput or CompositionReceivesKeyboardInput or ControlInCompositionHasFocus));
Canvas.OverlayRectangle(Bounds.Size, 0.6);
end;
if ReceivesKeyboardInput then
PaintFocusRectangle(Canvas, TInteger32Rectangle.New(Left + 1, Top + 1, Bounds.Right - 2, Bounds.Bottom - 2));
end;
function TTopLeftHeaderControl.PasteFromClipboard(): TBoolean;
begin
Result := True;
TableControl.DeleteAll();
TableControl.PasteFromClipboard();
end;
function TTopLeftHeaderControl.GetHeaderBounds(Index: TInteger32): TInteger32Rectangle;
begin
Result := Bounds.Size;
end;
function TTopLeftHeaderControl.GetScrollSize(AvailableSize: TInteger32Size): TInteger32Size;
begin
Result := AvailableSize;
end;
{ TTableAssistentControl }
function TTableAssistentControl.ClearSelectionOnFocus(): TBoolean;
begin
Result := True;
end;
destructor TTableAssistentControl.Destroy();
begin
EditorValue.ReleaseReference();
inherited Destroy();
end;
function TTableAssistentControl.GetCaptionAlignment(): THorizontalAlignment;
begin
Result := THorizontalAlignment.Left;
end;
procedure TTableAssistentControl.GainedFocus();
begin
inherited GainedFocus();
if ClearSelectionOnFocus then
TableControl.NewSelection();
end;
procedure TTableAssistentControl.GainedFocusInComposition();
begin
if ClearSelectionOnFocus then
TableControl.NewSelection();
inherited GainedFocusInComposition();
end;
function TTableAssistentControl.HandlesNavigationDimension(NavigationDimension: TValidNavigationDimension): TBoolean;
begin
Result := True;
end;
procedure TTableAssistentControl.InternalSetEditorValue(const Value: TTypedValue);
begin
if Value <> EditorValue then
begin
Value.AddReference();
EditorValue.ReleaseReference();
FEditorValue := Value;
end;
end;
procedure TTableAssistentControl.PaintCaption(Canvas: TCanvas; const Bounds: TInteger32Rectangle; const Value: TText);
var
Painter: TControl;
CaptionValue: TTypedValue;
TextValue: TTextValue;
ValuePath: TValuePath;
ControlFactory: TControlFactory;
begin
// TODO: We should not create a typed value here, instead we should create a painter for the header value
TextValue := TTextValue.Create(Value);
ValuePath := TValuePath.Create([TextValue]);
ValuePath.AddReference();
try
CaptionValue := TTypedValue.Create(TextValue);
CaptionValue.AddReference();
ControlFactory := GetControlFactory();
Painter := ControlFactory.CreateControl(ControlFactory, TControlPurpose.Cell, ValuePath, CaptionValue);
Painter.ParentControl := Self;
Painter.SuppressInvalidate := True;
Painter.Bounds := Bounds;
Painter.Mode := TControlMode.Display;
// TODO: We should not perform a type cast here, instead we should find a better, generic way of aligning horizontally
(Painter as TSingleLineTextControl).HorizontalAlignment := GetCaptionAlignment();
try
PaintChildControl(Canvas, Painter);
finally
Painter.Free();
CaptionValue.ReleaseReference();
end;
finally
ValuePath.ReleaseReference();
end;
end;
procedure TTableAssistentControl.SetTableControl(const Value: TTableControl);
begin
if Value <> TableControl then
begin
FTableControl := Value;
TableControlChanged();
Invalidate();
end;
end;
procedure TTableAssistentControl.TableControlChanged();
begin
end;
{ TColumnFiltersControl }
procedure TColumnFiltersControl.AdjustEditor();
var
ValuePath: TValuePath;
ControlFactory: TControlFactory;
begin
if Editor <> nil then
begin
ChildControls.Remove(Editor);
Editor.Free();
FEditor := nil;
end;
EditorValue := nil;
if
(TableControl.Model <> nil)
and (TableControl.FocusedColumn >= 0) and (TableControl.FocusedColumn < Columns.Count) then
begin
EditorValue := TTypedValue.Create(TTextValue.Create(FilterValues[TableControl.FocusedColumn]));
ControlFactory := GetControlFactory();
ValuePath := TValuePath.Create([EditorValue.Value]);
ValuePath.AddReference();
try
FEditor := ControlFactory.CreateControl(ControlFactory, TControlPurpose.Cell, ValuePath, EditorValue);
finally
ValuePath.ReleaseReference();
end;
if Editor <> nil then
begin
Editor.Mode := TControlMode.Display;
Editor.Bounds := GetEditorBounds();
Editor.IsEditor := True;
Editor.FocusAbility := TFocusability.None;
Editor.Listeners.Add(Self);
ChildControls.Add(Editor);
end;
end;
end;
procedure TColumnFiltersControl.ColumnCountChanged();
begin
FilterValues.Count := TableControl.Columns.Count;
Invalidate();
end;
constructor TColumnFiltersControl.Create();
begin
inherited Create();
Height := 0;
FilterValues := TArrayList<TText>.Create();
Model := TTableRowFilterTableModel.Create();
Model.AddReference();
end;
destructor TColumnFiltersControl.Destroy();
begin
Model.ReleaseReference();
FilterValues.Free();
inherited Destroy();
end;
function TColumnFiltersControl.GetCellBounds(Column: TInteger32): TInteger32Rectangle;
begin
Result := GetColumnBounds(Column);
Inc(Result.Left, 4);
Inc(Result.Top, 1);
Dec(Result.Right, 4);
Dec(Result.Bottom, 2);
end;
function TColumnFiltersControl.GetColumnBounds(Column: TInteger32): TInteger32Rectangle;
var
Left: TInteger32;
begin
Left := Columns.LowerBound(Column);
Result := TInteger32Rectangle.New(Left, 0, Left + Columns.Size(Column) - 1, Height - 1);
end;
function TColumnFiltersControl.GetEditor: TControl;
begin
Result := FEditor;
end;
function TColumnFiltersControl.GetEditorBounds(): TInteger32Rectangle;
begin
Result := GetCellBounds(TableControl.FocusedColumn);
end;
procedure TColumnFiltersControl.HandleFocusAndEditor(Canvas: TCanvas);
begin
if not IsInlineEditing then
begin
Caret := nil;
IndicateFocus(Canvas);
end;
end;
procedure TColumnFiltersControl.IndicateFocus(Canvas: TCanvas);
var
FocusRectangleLeft: TInteger32;
begin
if ReceivesKeyboardInput then
begin
FocusRectangleLeft := Columns.LowerBound(TableControl.FocusedColumn);
PaintFocusRectangle(Canvas, TInteger32Rectangle.New(
FocusRectangleLeft,
1,
FocusRectangleLeft + Columns.Size(TableControl.FocusedColumn) - 2,
Height - 2
));
end;
end;
function TColumnFiltersControl.KeyDown(Event: TKeyDownEvent): TBoolean;
begin
Result := inherited KeyDown(Event);
if not Result then
begin
Result := True;
if (Event.Key = TKey.F) and (Event.Modifiers = [TKeyModifier.Control]) then
TableControl.ToggleRowFiltering()
else
Result := False;
end;
end;
function TColumnFiltersControl.MouseLeftDown(Event: TMouseButtonEvent): TBoolean;
var
Column: TInteger32;
begin
GetMouseManager().ControlWithCapture := Self;
Result := True;
Column := Columns.ItemWithPosition(Event.Position.X);
if Column <> -1 then
begin
TableControl.FocusedColumn := Column;
RequestFocusInComposition();
Invalidate();
end;
end;
function TColumnFiltersControl.Navigate(Direction: TNavigationDirection; KeyModifiers: TKeyModifiers): TBoolean;
begin
Result := NavigationDirectionToDimension(Direction) = TNavigationDimension.Horizontal;
if Result then
Result := TableControl.NavigateHorizontally(Direction, KeyModifiers, TKeyModifier.Shift in KeyModifiers);
end;
procedure TColumnFiltersControl.Paint(Canvas: TCanvas);
var
Index: TInteger32;
ColumnBounds: TInteger32Rectangle;
IsFocusedColumn: TBoolean;
IsEditingColumn: TBoolean;
begin
inherited Paint(Canvas);
// TODO: The editor should be positioned somewhere else
if Editor <> nil then
Editor.Bounds := GetEditorBounds();
if Columns.HasValidVisibleItems() then
begin
for Index := Columns.FirstVisible to Columns.LastVisible do
begin
ColumnBounds := GetColumnBounds(Index);
IsFocusedColumn := Index = TableControl.FocusedColumn;
IsEditingColumn := IsInlineEditing and IsFocusedColumn;
Canvas.Fill := TFill.Create(TNamedColor.LightGreen);
Canvas.FillRectangle(ColumnBounds);
if not IsEditingColumn and ((ReceivesKeyboardInput and (Index = TableControl.FocusedColumn)) or TableControl.Selection.SelectedColumn[Index]) then
begin
Canvas.Fill := TFill.Create(SelectionColor(ReceivesKeyboardInput or CompositionReceivesKeyboardInput or ControlInCompositionHasFocus));
Canvas.OverlayRectangle(ColumnBounds, 0.6);
end;
if not IsFocusedColumn then
PaintCaption(Canvas, GetCellBounds(Index), FilterValues[Index]);
end;
end;
HandleFocusAndEditor(Canvas);
PaintGridLines(Canvas);
end;
procedure TColumnFiltersControl.PaintGridLines(Canvas: TCanvas);
var
Index: TInteger32;
Left: TInteger32;
Right: TInteger32;
Bottom: TInteger32;
First: TInteger32;
Last: TInteger32;
begin
Canvas.Stroke := TStroke.Create(TNamedColor.LightGray, 1);
First := Columns.FirstVisible;
Last := Minimum(Columns.LastVisible, Columns.Last - 1);
Bottom := Height - 1;
if TGridLine.Vertical in TableControl.ShowGridLines then
begin
Left := -1;
if First > 0 then
Inc(Left, Columns.RunningSize(First - 1));
for Index := First to Last do
begin
Inc(Left, Columns.Size(Index));
Canvas.VerticalLine(Left, TInteger32Interval.New(0, Bottom));
end;
end;
if (Columns.Count > 0) and (TGridLine.Right in TableControl.ShowGridLines) then
begin
Left := Columns.TotalSize - 1;
Canvas.VerticalLine(Left, TInteger32Interval.New(0, Bottom));
end;
Left := 0;
if (Columns.Count > 0) and (Columns.LastVisible <> -1) then
begin
Canvas.Stroke := TStroke.Create(TNamedColor.DarkGray, 1);
Right := Columns.RunningSize(Columns.LastVisible) - 1;
if TGridLine.Horizontal in TableControl.ShowGridLines then
Canvas.HorizontalLine(TInteger32Interval.New(Left, Right), Bottom);
end;
end;
function TColumnFiltersControl.PasteFromClipboard(): TBoolean;
begin
Result := TableControl.PasteFromClipboard();
end;
function TColumnFiltersControl.GetPreferredSize(AvailableSize: TInteger32Size): TInteger32Size;
begin
Result := TInteger32Size.New(TableControl.Columns.TotalSize(), Height);
end;
procedure TColumnFiltersControl.SetEditorValue(Value: TValue);
begin
FilterValues[TableControl.FocusedColumn] := Value.ToText();
TableControl.UpdateRowFilter();
end;
procedure TColumnFiltersControl.TableControlChanged();
begin
if TableControl <> nil then
Columns := TableControl.Columns
else
Columns := nil;
end;
{ TBasicRowHeadersControl }
constructor TBasicRowHeadersControl.Create();
begin
inherited Create();
Sizes := CreateRows();
Width := 13;
end;
function TBasicRowHeadersControl.CreateRows(): TEvenCumulativeSizes;
begin
Result := TEvenCumulativeSizes.Create();
Result.CommonSize := 17;
Result.DefaultSize := 17;
end;
function TBasicRowHeadersControl.GetCaptionAlignment(): THorizontalAlignment;
begin
Result := THorizontalAlignment.Right;
end;
function TBasicRowHeadersControl.GetHeaderBounds(Index: TInteger32): TInteger32Rectangle;
var
Top: TInteger32;
begin
Top := Sizes.LowerBound(Index);
Result := TInteger32Rectangle.New(TInteger32Point.New(0, Top), TInteger32Size.New(Width, Sizes.Size(Index)));
end;
function TBasicRowHeadersControl.GetPreferredSize(AvailableSize: TInteger32Size): TInteger32Size;
begin
Result := TInteger32Size.New(Width, Sizes.TotalSize());
end;
procedure TBasicRowHeadersControl.Paint(Canvas: TCanvas);
var
Index: TInteger32;
Top: TInteger32;
HeaderBounds: TInteger32Rectangle;
begin
if Sizes.HasValidVisibleItems then
begin
for Index := Sizes.FirstVisible to Sizes.LastVisible do
begin
HeaderBounds := GetHeaderBounds(Index);
PaintHeaderButton(Canvas, HeaderBounds, HeaderIsDown(Index), TButtonEdgeStyle.Shadow, TButtonEdgeStyle.Size);
if Selection.SelectedRow[Index] then
begin
Canvas.Fill := TFill.Create(SelectionColor(ReceivesKeyboardInput or CompositionReceivesKeyboardInput or ControlInCompositionHasFocus));
Canvas.OverlayRectangle(HeaderBounds, 0.6);
end;
if Width > 13 then
PaintCaption(Canvas, GetCaptionBounds(Index), Headers[Index].Caption.ToText());
end;
if ReceivesKeyboardInput and (TableControl.Columns.Count > 0) and (Sizes.Count > 0) then
begin
if Sizes.IsVisible(FocusedHeader) then
begin
Top := Sizes.LowerBound(FocusedHeader);
PaintFocusRectangle(Canvas, TInteger32Rectangle.New(1, Top, Width - 4, Top + Sizes.Size(FocusedHeader) - 2));
end;
end;
end;
end;
function TBasicRowHeadersControl.ShouldForwardKeyDownDownChain(Event: TKeyDownEvent): TBoolean;
begin
Result := IsInlineEditing or not (Event.Key = TKey.Delete);
end;
{ TColumnFiltersHeadersControl }
constructor TColumnFiltersHeadersControl.Create();
begin
inherited Create();
Selection := T2dSelection.Create();
RowHeadersControl := TControlWeakReference<TRowHeadersControl>.Create(Self);
Height := 0;
Sizes.Count := 1;
end;
destructor TColumnFiltersHeadersControl.Destroy();
begin
Selection.Free();
RowHeadersControl.Free();
inherited Destroy();
end;
function TColumnFiltersHeadersControl.GetPreferredSize(AvailableSize: TInteger32Size): TInteger32Size;
begin
// TODO: We currently return Height to prevent this control from causing the filter row to show always
Result := Size;
end;
function TColumnFiltersHeadersControl.HandleEvent(Event: TEvent): TBoolean;
begin
if (Event is TControlSizeChangedEvent) and ((Event as TControlSizeChangedEvent).GetControl() = RowHeadersControl.Value) then
begin
Result := True;
Width := RowHeadersControl.Value.Width;
end
else
Result := inherited HandleEvent(Event);
end;
{ TAutoSizeActionPreferred }
constructor TAutoSizeActionPreferred.Create(MinimumSize: TInteger32; Options: TAutoSizeOptions);
begin
inherited Create();
FMinimumSize := MinimumSize;
FOptions := Options;
end;
{ TAutoSizeActionFixed }
constructor TAutoSizeActionFixed.Create(Size: TInteger32);
begin
inherited Create();
FSize := Size;
end;
{ TAddRowAction }
procedure TAddRowAction.Execute(Control: TControl);
begin
Object_.RowHeadersControl.Insert();
end;
function TAddRowAction.GetActionName(): TText;
begin
Result := 'Add row';
end;
{ TDeleteRowsAction }
procedure TDeleteRowsAction.Execute(Control: TControl);
begin
Object_.RowHeadersControl.Delete();
end;
function TDeleteRowsAction.GetActionName(): TText;
begin
Result := 'Delete rows';
end;
{ TSaveAction }
procedure TSaveAction.Execute(Control: TControl);
begin
Object_.Save();
end;
function TSaveAction.GetActionName(): TText;
begin
Result := 'Save';
end;
{ TFilterAction }
procedure TFilterAction.Execute(Control: TControl);
begin
Object_.ToggleRowFiltering();
end;
function TFilterAction.GetActionName(): TText;
begin
Result := 'Filter';
end;
{ TAggregateAction }
procedure TAggregateAction.Execute(Control: TControl);
begin
Object_.CreateRowGroupingTable();
end;
function TAggregateAction.GetActionName(): TText;
begin
Result := 'Aggregate';
end;
{ TDiagramAction }
procedure TDiagramAction.Execute(Control: TControl);
begin
Object_.CreateTableDrawing();
end;
function TDiagramAction.GetActionName(): TText;
begin
Result := 'Diagram';
end;
{ TRefreshAction }
procedure TRefreshAction.Execute(Control: TControl);
begin
Object_.Refresh();
end;
function TRefreshAction.GetActionName(): TText;
begin
Result := 'Refresh';
end;
end.
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