cxspinbutton.pas

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  Result := TcxSpinButton;
end;

class function TcxCustomSpinButtonProperties.GetViewDataClass: TcxCustomEditViewDataClass;
begin
  Result := TcxSpinButtonViewData;
end;

function TcxCustomSpinButtonProperties.IsDisplayValueNumeric: Boolean;
begin
  Result := True;
end;

function TcxCustomSpinButtonProperties.IsEditValueNumeric: Boolean;
begin
  Result := True;
end;

function TcxCustomSpinButtonProperties.PreserveSelection: Boolean;
begin
  Result := False;
end;

{ TcxCustomSpinButton }

destructor TcxCustomSpinButton.Destroy;
begin
  FSpinButtonControlHook.Free;
  inherited Destroy;
end;

class function TcxCustomSpinButton.GetPropertiesClass: TcxCustomEditPropertiesClass;
begin
  Result := TcxCustomSpinButtonProperties;
end;

function TcxCustomSpinButton.GetValue: Variant;
const
  AVarTypeMap: array [TcxSpinEditValueType] of TVarType = (varInteger, varDouble);
begin
  PrepareEditValue(Text, Result, InternalFocused);
  if not VarIsNumeric(Result) then
    Result := VarAsType(ActiveProperties.MinValue, AVarTypeMap[ActiveProperties.ValueType]);
end;

procedure TcxCustomSpinButton.InternalSetDisplayValue(const Value: TcxEditValue);
begin
  if IsDestroying then
    Exit;
  inherited InternalSetDisplayValue(Value);
  SetAssociateText(Value);
end;

procedure TcxCustomSpinButton.InternalSetEditValue(const Value: TcxEditValue; AValidateEditValue: Boolean);
begin
  if IsDestroying then
    Exit;
  inherited InternalSetEditValue(Value, AValidateEditValue);
  SetAssociateText(Value);
end;

procedure TcxCustomSpinButton.Notification(AComponent: TComponent;
  Operation: TOperation);
begin
  inherited Notification(AComponent, Operation);
  if (Operation = opRemove) and (AComponent = FAssociate) then
    Associate := nil;
end;

function TcxCustomSpinButton.CanFocusOnClick: Boolean;
begin
  Result := False;
end;

function TcxCustomSpinButton.Increment(AButton: TcxSpinEditButton): Boolean;
begin
  if Assigned(Associate) then SynchronizeEditValueFromAssociate;
  Result := inherited Increment(AButton);
  if not Result then
    Exit;
  KeyboardAction := True;
  try
    SynchronizeEditValue;
    SetAssociateText(EditValue);
  finally
    KeyboardAction := False;
  end;
end;

procedure TcxCustomSpinButton.SynchronizeEditValueFromAssociate;
var
  FAssociateValue: TcxEditValue;
begin
  if not((FAssociate is TCustomEdit) or (FAssociate is TcxCustomTextEdit)) then
    Exit;
  if ActiveProperties.ValueType = vtInt then
  begin
    if FAssociate is TcxCustomTextEdit then
      FAssociateValue := cxStrToInt(TcxCustomTextEdit(FAssociate).Text, True)
    else
      FAssociateValue := cxStrToInt(TCustomEdit(FAssociate).Text, True);
  end
  else
  begin
    if FAssociate is TcxCustomTextEdit then
      FAssociateValue := cxStrToFloat(TcxCustomTextEdit(FAssociate).Text, True)
    else
      FAssociateValue := cxStrToFloat(TCustomEdit(FAssociate).Text, True);
  end;
  if FAssociateValue <> Value then
    Value := FAssociateValue;
end;

procedure TcxCustomSpinButton.SetSize;
var
  AWidth: Integer;
begin
  inherited SetSize;
  if not AutoWidth then
    Exit;
  with ViewInfo do
  begin
    AWidth := (BorderRect.Right - BorderRect.Left) - (TextRect.Right - TextRect.Left);
    if Painter <> nil then
      Dec(AWidth)
    else      
      if Length(ButtonsInfo) > 0 then
        if not ButtonsInfo[0].Data.NativeStyle then
        begin
          AWidth := Succ(AWidth);
          if Shadow then
            AWidth := AWidth + cxContainerShadowWidth;
        end;
  end;
  Width := AWidth;
end;

procedure TcxCustomSpinButton.Initialize;
begin
  inherited Initialize;
  FAutoWidth := True;
  FSpinButtonControlHook := TcxSpinButtonControlHook.Create;
  FSpinButtonControlHook.FParent := Self;
  AutoSize := False;
  TabStop := False;
end;

function TcxCustomSpinButton.InternalDoEditing: Boolean;
begin
  Result := True;
end;

function TcxCustomSpinButton.GetActiveProperties: TcxCustomSpinButtonProperties;
begin
  Result := TcxCustomSpinButtonProperties(InternalGetActiveProperties);
end;

function TcxCustomSpinButton.GetProperties: TcxCustomSpinButtonProperties;
begin
  Result := TcxCustomSpinButtonProperties(FProperties);
end;

procedure TcxCustomSpinButton.SetAssociate(AValue: TWinControl);
var
  I: Integer;
  FCompoundControl: IcxCompoundControl;

  function IsClass(ClassType: TClass; const Name: string): Boolean;
  begin
    Result := True;
    while ClassType <> nil do
    begin
      if ClassType.ClassNameIs(Name) then Exit;
      ClassType := ClassType.ClassParent;
    end;
    Result := False;
  end;

begin
  if AValue <> nil then
    for I := 0 to Parent.ControlCount - 1 do {Is control already associated ?}
      if (Parent.Controls[I] is TcxCustomSpinButton) and (Parent.Controls[I] <> Self) then
        if TcxCustomSpinButton(Parent.Controls[I]).Associate = AValue then
          raise EcxEditError.Create(AValue.Name +
            cxGetResourceString(@scxUDAssociated) + Parent.Controls[I].Name);

  if FAssociate <> nil then
  begin
    FSpinButtonControlHook.WinControl := nil;
    FAssociate := nil;
  end;

  if (AValue <> nil) and (AValue.Parent = Self.Parent) and
    not (AValue is TcxCustomSpinButton) and
    not IsClass(AValue.ClassType, 'TcxDBTextEdit') and
    not IsClass(AValue.ClassType, 'TcxDBMemo') and
    not IsClass(AValue.ClassType, 'TDBTextEdit') and
    not IsClass(AValue.ClassType, 'TDBMemo') then
  begin
    FAssociate := AValue;
    if Supports(FAssociate, IcxCompoundControl, FCompoundControl) then
      FSpinButtonControlHook.WinControl := FCompoundControl.ActiveControl
    else
      FSpinButtonControlHook.WinControl := FAssociate;
    JoinToAssociate;
    SetAssociateText(Value);
  end;
end;

procedure TcxCustomSpinButton.SetAutoWidth(Value: Boolean);
begin
  if FAutoWidth <> Value then
  begin
    FAutoWidth := Value;
    if Value then
    begin
      CheckHandle;
      ActiveProperties.ViewStyle := vsNormal;
    end
    else
      ActiveProperties.ViewStyle := vsButtonsOnly;
    if Value then
    begin
      SetSize;
      ShortRefreshContainer(False);
    end;
  end;
end;

procedure TcxCustomSpinButton.SetProperties(Value: TcxCustomSpinButtonProperties);
begin
  FProperties.Assign(Value);
end;

procedure TcxCustomSpinButton.JoinToAssociate;
begin
  if FAssociate is TcxCustomEdit then
    Font := TcxCustomEdit(FAssociate).Style.Font
  else
    Font := TWinControlAccess(FAssociate).Font;
  Top := FAssociate.Top;
  Left := FAssociate.Left + FAssociate.Width;
  Height := FAssociate.Height;
end;

procedure TcxCustomSpinButton.SetAssociateText(const AValue: Variant);
begin
  if (FAssociate = nil) or ((not (FAssociate is TcxCustomTextEdit)) and
    (not (FAssociate is TCustomEdit))) then Exit;
  if (FAssociate is TcxCustomTextEdit) then
    TcxCustomTextEdit(FAssociate).Text := VarToStr(AValue)
   else
    if (FAssociate is TCustomEdit) then
     TCustomEdit(FAssociate).Text := VarToStr(AValue);
end;

{ TcxSpinButton }

class function TcxSpinButton.GetPropertiesClass: TcxCustomEditPropertiesClass;
begin
  Result := TcxSpinButtonProperties;
end;

function TcxSpinButton.GetActiveProperties: TcxSpinButtonProperties;
begin
  Result := TcxSpinButtonProperties(InternalGetActiveProperties);
end;

function TcxSpinButton.GetProperties: TcxSpinButtonProperties;
begin
  Result := TcxSpinButtonProperties(FProperties);
end;

procedure TcxSpinButton.SetProperties(Value: TcxSpinButtonProperties);
begin
  FProperties.Assign(Value);
end;

end.