bsskingrids.pas

BusinessSkinForm的控件包与实例

begin
  if FTransparent
  then
    begin
      ParentImage.Width := Width;
      ParentImage.Height := Height;
      if FWallpaper.Empty
      then
        GetParentImage(Self, ParentImage.Canvas)
      else
        if FWallpaperStretch
        then
          ParentImage.Canvas.StretchDraw(Rect(0, 0,
            ParentImage.Width, ParentImage.Height), FWallPaper)
        else
          PaintWallPaper(ParentImage.Canvas);
    end;
end;


procedure TbsSkinCustomGrid.SetTransparent;
begin
  if FTransparent <> Value
  then
    begin
      FTransparent := Value;
      Invalidate;
    end;
end;

function TbsSkinCustomGrid.GetNewTextRect;
var
  SR1, SR2, R: TRect;
  OX, OY: Integer;
begin
  if FIndex < 0
  then
    begin
      Result := CellR;
      Exit;
    end
  else
    begin
      R := CellR;
      if gdFixed in AState
      then
        begin
          SR1 := FixedCellRect;
          SR2 := FixedCellTextRect;
        end
      else
        begin
          SR1 := SelectCellRect;
          SR2 := CellTextRect;
        end;

      if not IsNullRect(SR2)
      then
        begin
          if not UseSkinCellHeight
          then
            OY := RectHeight(R) - RectHeight(FixedCellRect)
          else
            OY := 0;
          OX := RectWidth(CellR) - RectWidth(SR1);
          Inc(R.Left, SR2.Left);
          Inc(R.Top, SR2.Top);
          R.Right := R.Left + RectWidth(SR2) + OX;
          R.Bottom := R.Top + RectHeight(SR2) + OY;
        end;
      Result := R;
    end
end;

procedure TbsSkinCustomGrid.ChangeSkinData;
var
  i, Old: Integer;
begin
  GetSkinData;
  if FIndex > -1
  then
    begin
      Old := DefaultRowHeight;
      i := SelectCellRect.Bottom - SelectCellRect.Top;
      if (i <> Old) and FUseSkinCellHeight
      then
        DefaultRowHeight := i
      else
        Invalidate;
    end
  else
    begin
      DefaultRowHeight := FDefaultCellHeight;
      Invalidate;
    end;
  UpDateScrollRange(True);
  if FVScrollBar <> nil then FVScrollBar.Align := FVScrollBar.Align;
  if FHScrollBar <> nil then FHScrollBar.Align := FHScrollBar.Align;  
end;

procedure TbsSkinCustomGrid.GetSkinData;
begin
  BGPicture := nil;
  Picture := nil;
  FIndex := -1;
  inherited;
  if FIndex > -1
  then
    if TbsDataSkinControl(FSD.CtrlList.Items[FIndex]) is TbsDataSkinGridControl
    then
      with TbsDataSkinGridControl(FSD.CtrlList.Items[FIndex]) do
      begin
        //
        if (PictureIndex <> -1) and (PictureIndex < FSD.FActivePictures.Count)
        then
          Picture := TBitMap(FSD.FActivePictures.Items[PictureIndex])
        else
          Picture := nil;
        //
        Self.FixedCellRect := FixedCellRect;
        Self.SelectCellRect := SelectCellRect;
        Self.FocusCellRect := FocusCellRect;
        Self.FixedCellLeftOffset := FixedCellLeftOffset;
        Self.FixedCellRightOffset := FixedCellRightOffset;
        Self.FixedCellTextRect := FixedCellTextRect;
        Self.CellLeftOffset := CellLeftOffset;
        Self.CellRightOffset := CellRightOffset;
        Self.CellTextRect := CellTextRect;
        Self.LinesColor := LinesColor;
        Self.BGColor := BGColor;
        Self.BGPictureIndex := BGPictureIndex;
        //
        if (Self.BGPictureIndex <> -1) and (Self.BGPictureIndex < FSD.FActivePictures.Count)
        then
          BGPicture := TBitMap(FSD.FActivePictures.Items[Self.BGPictureIndex])
        else
          BGPicture := nil;
        //
        Self.FontName := FontName;
        Self.FontStyle := FontStyle;
        Self.FontHeight := FontHeight;
        Self.FontColor := FontColor;
        Self.SelectFontColor := SelectFontColor;
        Self.FocusFontColor := FocusFontColor;
        Self.FixedFontName := FixedFontName;
        Self.FixedFontStyle := FixedFontStyle;
        Self.FixedFontHeight := FixedFontHeight;
        Self.FixedFontColor := FixedFontColor;
        Self.CellStretchEffect := CellStretchEffect;
        Self.FixedCellStretchEffect := FixedCellStretchEffect;
        Self.ShowFocus := ShowFocus;

        if IsNullRect(Self.SelectCellRect)
        then
          Self.SelectCellRect := Self.FocusCellRect; 
        if IsNullRect(Self.FocusCellRect)
        then
          Self.FocusCellRect := Self.SelectCellRect;

        if IsNullRect(Self.FixedCellRect)
        then
          begin
            FIndex := -1;
            BGPicture := nil;
            Picture := nil;
          end;
          
      end;
end;

procedure TbsSkinCustomGrid.PaintWallPaper;
var
  X, Y, XCnt, YCnt: Integer;
begin
  if (BGPicture.Width <> 0) and(BGPicture.Height <> 0) then
  begin
    XCnt := Width div BGPicture.Width;
    YCnt := Height div BGPicture.Height;
    for X := 0 to XCnt do
    for Y := 0 to YCnt do
      C.Draw(X * BGPicture.Width, Y * BGPicture.Height,
                            BGPicture);
  end;
end;

procedure TbsSkinCustomGrid.AdjustSize(Index, Amount: Longint; Rows: Boolean);
var
  NewCur: TGridCoord;
  OldRows, OldCols: Longint;
  MovementX, MovementY: Longint;
  MoveRect: TGridRect;
  ScrollArea: TRect;
  AbsAmount: Longint;

  function DoSizeAdjust(var Count: Longint; var Extents: Pointer;
    DefaultExtent: Integer; var Current: Longint): Longint;
  var
    I: Integer;
    NewCount: Longint;
  begin
    NewCount := Count + Amount;
    if NewCount < Index then InvalidOp(STooManyDeleted);
    if (Amount < 0) and Assigned(Extents) then
    begin
      Result := 0;
      for I := Index to Index - Amount - 1 do
        Inc(Result, PIntArray(Extents)^[I]);
    end
    else
      Result := Amount * DefaultExtent;
    if Extents <> nil then
      ModifyExtents(Extents, Index, Amount, DefaultExtent);
    Count := NewCount;
    if Current >= Index then
      if (Amount < 0) and (Current < Index - Amount) then Current := Index
      else Inc(Current, Amount);
  end;

begin
  if Amount = 0 then Exit;
  NewCur := FCurrent;
  OldCols := ColCount;
  OldRows := RowCount;
  MoveRect.Left := FixedCols;
  MoveRect.Right := ColCount - 1;
  MoveRect.Top := FixedRows;
  MoveRect.Bottom := RowCount - 1;
  MovementX := 0;
  MovementY := 0;
  AbsAmount := Amount;
  if AbsAmount < 0 then AbsAmount := -AbsAmount;
  if Rows then
  begin
    MovementY := DoSizeAdjust(FRowCount, FRowHeights, DefaultRowHeight, NewCur.Y);
    MoveRect.Top := Index;
    if Index + AbsAmount <= TopRow then MoveRect.Bottom := TopRow - 1;
  end
  else
  begin
    MovementX := DoSizeAdjust(FColCount, FColWidths, DefaultColWidth, NewCur.X);
    MoveRect.Left := Index;
    if Index + AbsAmount <= LeftCol then MoveRect.Right := LeftCol - 1;
  end;
  GridRectToScreenRect(MoveRect, ScrollArea, True);
  if not IsRectEmpty(ScrollArea) then
  begin
    ScrollWindow(Handle, MovementX, MovementY, @ScrollArea, @ScrollArea);
    UpdateWindow(Handle);
  end;
  SizeChanged(OldCols, OldRows);
  if (NewCur.X <> FCurrent.X) or (NewCur.Y <> FCurrent.Y) then
    MoveCurrent(NewCur.X, NewCur.Y, True, True);
end;

function TbsSkinCustomGrid.BoxRect(ALeft, ATop, ARight, ABottom: Longint): TRect;
var
  GridRect: TGridRect;
begin
  GridRect.Left := ALeft;
  GridRect.Right := ARight;
  GridRect.Top := ATop;
  GridRect.Bottom := ABottom;
  GridRectToScreenRect(GridRect, Result, False);
end;

procedure TbsSkinCustomGrid.DoExit;
begin
  inherited DoExit;
  if not (goAlwaysShowEditor in Options) then HideEditor;
end;

function TbsSkinCustomGrid.CellRect(ACol, ARow: Longint): TRect;
begin
  Result := BoxRect(ACol, ARow, ACol, ARow);
end;

function TbsSkinCustomGrid.CanEditAcceptKey(Key: Char): Boolean;
begin
  Result := True;
end;

function TbsSkinCustomGrid.CanGridAcceptKey(Key: Word; Shift: TShiftState): Boolean;
begin
  Result := True;
end;

function TbsSkinCustomGrid.CanEditModify: Boolean;
begin
  Result := FCanEditModify;
end;

function TbsSkinCustomGrid.CanEditShow: Boolean;
begin
  Result := ([goRowSelect, goEditing] * Options = [goEditing]) and
    FEditorMode and not (csDesigning in ComponentState) and HandleAllocated and
    ((goAlwaysShowEditor in Options) or IsActiveControl);
end;

function TbsSkinCustomGrid.IsActiveControl: Boolean;
var
  H: Hwnd;
  ParentForm: TCustomForm;
begin
  Result := False;
  ParentForm := GetParentForm(Self);
  if Assigned(ParentForm) then
  begin
    if (ParentForm.ActiveControl = Self) then
      Result := True
  end
  else
  begin
    H := GetFocus;
    while IsWindow(H) and (Result = False) do
    begin
      if H = WindowHandle then
        Result := True
      else
        H := GetParent(H);
    end;
  end;
end;

function TbsSkinCustomGrid.GetEditMask(ACol, ARow: Longint): string;
begin
  Result := '';
end;

function TbsSkinCustomGrid.GetEditText(ACol, ARow: Longint): string;
begin
  Result := '';
end;

procedure TbsSkinCustomGrid.SetEditText(ACol, ARow: Longint; const Value: string);
begin
end;

function TbsSkinCustomGrid.GetEditLimit: Integer;
begin
  Result := 0;
end;

procedure TbsSkinCustomGrid.HideEditor;
begin
  FEditorMode := False;
  HideEdit;
end;

procedure TbsSkinCustomGrid.ShowEditor;
begin
  FEditorMode := True;
  UpdateEdit;
end;

procedure TbsSkinCustomGrid.ShowEditorChar(Ch: Char);
begin
  ShowEditor;
  if FInplaceEdit <> nil then
    PostMessage(FInplaceEdit.Handle, WM_CHAR, Word(Ch), 0);
end;

procedure TbsSkinCustomGrid.InvalidateEditor;
begin
  FInplaceCol := -1;
  FInplaceRow := -1;
  UpdateEdit;
end;

procedure TbsSkinCustomGrid.ReadColWidths(Reader: TReader);
var
  I: Integer;
begin
  with Reader do
  begin
    ReadListBegin;
    for I := 0 to ColCount - 1 do ColWidths[I] := ReadInteger;
    ReadListEnd;
  end;
end;

procedure TbsSkinCustomGrid.ReadRowHeights(Reader: TReader);
var
  I: Integer;
begin
  with Reader do
  begin
    ReadListBegin;
    for I := 0 to RowCount - 1 do RowHeights[I] := ReadInteger;
    ReadListEnd;
  end;
end;

procedure TbsSkinCustomGrid.WriteColWidths(Writer: TWriter);
var
  I: Integer;
begin
  with Writer do
  begin
    WriteListBegin;
    for I := 0 to ColCount - 1 do WriteInteger(ColWidths[I]);
    WriteListEnd;
  end;
end;

procedure TbsSkinCustomGrid.WriteRowHeights(Writer: TWriter);
var
  I: Integer;
begin
  with Writer do
  begin
    WriteListBegin;
    for I := 0 to RowCount - 1 do WriteInteger(RowHeights[I]);
    WriteListEnd;
  end;
end;

procedure TbsSkinCu