// PaintPrivate is used in three places that need to duplicate the paint code:
// 1. DataGridViewCell::Paint method
// 2. DataGridViewCell::GetContentBounds
// 3. DataGridViewCell::GetErrorIconBounds
//
// if computeContentBounds is true then PaintPrivate returns the contentBounds
// else if computeErrorIconBounds is true then PaintPrivate returns the errorIconBounds
// else it returns Rectangle.Empty;
private Rectangle PaintPrivate(Graphics g,
Rectangle clipBounds,
Rectangle cellBounds,
int rowIndex,
DataGridViewElementStates elementState,
object formattedValue,
string errorText,
DataGridViewCellStyle cellStyle,
DataGridViewAdvancedBorderStyle advancedBorderStyle,
DataGridViewPaintParts paintParts,
bool computeContentBounds,
bool computeErrorIconBounds,
bool paint)
{
// Parameter checking.
// One bit and one bit only should be turned on
Debug.Assert(paint || computeContentBounds || computeErrorIconBounds);
Debug.Assert(!paint || !computeContentBounds || !computeErrorIconBounds);
Debug.Assert(!computeContentBounds || !computeErrorIconBounds || !paint);
Debug.Assert(!computeErrorIconBounds || !paint || !computeContentBounds);
Debug.Assert(cellStyle != null);
if (paint && DataGridViewCell.PaintBorder(paintParts))
{
PaintBorder(g, clipBounds, cellBounds, cellStyle, advancedBorderStyle);
}
Rectangle resultBounds;
Rectangle valBounds = cellBounds;
Rectangle borderWidths = BorderWidths(advancedBorderStyle);
valBounds.Offset(borderWidths.X, borderWidths.Y);
valBounds.Width -= borderWidths.Right;
valBounds.Height -= borderWidths.Bottom;
if (valBounds.Width > 0 && valBounds.Height > 0 && (paint || computeContentBounds))
{
Rectangle imgBounds = valBounds;
if (cellStyle.Padding != Padding.Empty)
{
if (DataGridView.RightToLeftInternal)
{
imgBounds.Offset(cellStyle.Padding.Right, cellStyle.Padding.Top);
}
else
{
imgBounds.Offset(cellStyle.Padding.Left, cellStyle.Padding.Top);
}
imgBounds.Width -= cellStyle.Padding.Horizontal;
imgBounds.Height -= cellStyle.Padding.Vertical;
}
bool cellSelected = (elementState & DataGridViewElementStates.Selected) != 0;
SolidBrush br = DataGridView.GetCachedBrush((DataGridViewCell.PaintSelectionBackground(paintParts) && cellSelected) ? cellStyle.SelectionBackColor : cellStyle.BackColor);
if (imgBounds.Width > 0 && imgBounds.Height > 0)
{
Image img = formattedValue as Image;
Icon ico = null;
if (img == null)
{
ico = formattedValue as Icon;
}
if (ico != null || img != null)
{
DataGridViewImageCellLayout imageLayout = ImageLayout;
if (imageLayout == DataGridViewImageCellLayout.NotSet)
{
if (OwningColumn is DataGridViewImageColumn)
{
imageLayout = ((DataGridViewImageColumn)OwningColumn).ImageLayout;
Debug.Assert(imageLayout != DataGridViewImageCellLayout.NotSet);
}
else
{
imageLayout = DataGridViewImageCellLayout.Normal;
}
}
if (imageLayout == DataGridViewImageCellLayout.Stretch)
{
if (paint)
{
if (DataGridViewCell.PaintBackground(paintParts))
{
DataGridViewCell.PaintPadding(g, valBounds, cellStyle, br, DataGridView.RightToLeftInternal);
}
if (DataGridViewCell.PaintContentForeground(paintParts))
{
if (img != null)
{
//
ImageAttributes attr = new ImageAttributes();
attr.SetWrapMode(WrapMode.TileFlipXY);
g.DrawImage(img, imgBounds, 0, 0, img.Width, img.Height, GraphicsUnit.Pixel, attr);
attr.Dispose();
}
else
{
g.DrawIcon(ico, imgBounds);
}
}
}
resultBounds = imgBounds;
}
else
{
Rectangle imgBounds2 = ImgBounds(imgBounds, (img == null) ? ico.Width : img.Width, (img == null) ? ico.Height : img.Height, imageLayout, cellStyle);
resultBounds = imgBounds2;
if (paint)
{
if (DataGridViewCell.PaintBackground(paintParts) && br.Color.A == 255)
{
g.FillRectangle(br, valBounds);
}
if (DataGridViewCell.PaintContentForeground(paintParts))
{
//paint the image
Region reg = g.Clip;
g.SetClip(Rectangle.Intersect(Rectangle.Intersect(imgBounds2, imgBounds), Rectangle.Truncate(g.VisibleClipBounds)));
if (img != null)
{
g.DrawImage(img, imgBounds2);
}
else
{
g.DrawIconUnstretched(ico, imgBounds2);
}
g.Clip = reg;
}
}
}
}
else
{
if (paint && DataGridViewCell.PaintBackground(paintParts) && br.Color.A == 255)
{
g.FillRectangle(br, valBounds);
}
resultBounds = Rectangle.Empty;
}
}
else
{
if (paint && DataGridViewCell.PaintBackground(paintParts) && br.Color.A == 255)
{
g.FillRectangle(br, valBounds);
}
resultBounds = Rectangle.Empty;
}
Point ptCurrentCell = DataGridView.CurrentCellAddress;
if (paint &&
DataGridViewCell.PaintFocus(paintParts) &&
ptCurrentCell.X == ColumnIndex &&
ptCurrentCell.Y == rowIndex &&
DataGridView.ShowFocusCues &&
DataGridView.Focused)
{
// Draw focus rectangle
ControlPaint.DrawFocusRectangle(g, valBounds, Color.Empty, br.Color);
}
if (DataGridView.ShowCellErrors && paint && DataGridViewCell.PaintErrorIcon(paintParts))
{
PaintErrorIcon(g, cellStyle, rowIndex, cellBounds, valBounds, errorText);
}
}
else if (computeErrorIconBounds)
{
if (!string.IsNullOrEmpty(errorText))
{
resultBounds = ComputeErrorIconBounds(valBounds);
}
else
{
resultBounds = Rectangle.Empty;
}
}
else
{
Debug.Assert(valBounds.Height <= 0 || valBounds.Width <= 0);
resultBounds = Rectangle.Empty;
}
return(resultBounds);
}
private Rectangle PaintPrivate(Graphics g, Rectangle clipBounds, Rectangle cellBounds, int rowIndex, DataGridViewElementStates elementState, object formattedValue, string errorText, DataGridViewCellStyle cellStyle, DataGridViewAdvancedBorderStyle advancedBorderStyle, DataGridViewPaintParts paintParts, bool computeContentBounds, bool computeErrorIconBounds, bool paint)
{
Rectangle empty;
Point point;
if (paint && DataGridViewCell.PaintBorder(paintParts))
{
this.PaintBorder(g, clipBounds, cellBounds, cellStyle, advancedBorderStyle);
}
Rectangle cellValueBounds = cellBounds;
Rectangle rectangle3 = this.BorderWidths(advancedBorderStyle);
cellValueBounds.Offset(rectangle3.X, rectangle3.Y);
cellValueBounds.Width -= rectangle3.Right;
cellValueBounds.Height -= rectangle3.Bottom;
if (((cellValueBounds.Width <= 0) || (cellValueBounds.Height <= 0)) || (!paint && !computeContentBounds))
{
if (computeErrorIconBounds)
{
if (!string.IsNullOrEmpty(errorText))
{
return(base.ComputeErrorIconBounds(cellValueBounds));
}
return(Rectangle.Empty);
}
return(Rectangle.Empty);
}
Rectangle destRect = cellValueBounds;
if (cellStyle.Padding != Padding.Empty)
{
if (base.DataGridView.RightToLeftInternal)
{
destRect.Offset(cellStyle.Padding.Right, cellStyle.Padding.Top);
}
else
{
destRect.Offset(cellStyle.Padding.Left, cellStyle.Padding.Top);
}
destRect.Width -= cellStyle.Padding.Horizontal;
destRect.Height -= cellStyle.Padding.Vertical;
}
bool flag = (elementState & DataGridViewElementStates.Selected) != DataGridViewElementStates.None;
SolidBrush cachedBrush = base.DataGridView.GetCachedBrush((DataGridViewCell.PaintSelectionBackground(paintParts) && flag) ? cellStyle.SelectionBackColor : cellStyle.BackColor);
if ((destRect.Width > 0) && (destRect.Height > 0))
{
Image image = formattedValue as Image;
Icon icon = null;
if (image == null)
{
icon = formattedValue as Icon;
}
if ((icon != null) || (image != null))
{
DataGridViewImageCellLayout imageLayout = this.ImageLayout;
switch (imageLayout)
{
case DataGridViewImageCellLayout.NotSet:
if (base.OwningColumn is DataGridViewImageColumn)
{
imageLayout = ((DataGridViewImageColumn)base.OwningColumn).ImageLayout;
}
else
{
imageLayout = DataGridViewImageCellLayout.Normal;
}
break;
case DataGridViewImageCellLayout.Stretch:
if (paint)
{
if (DataGridViewCell.PaintBackground(paintParts))
{
DataGridViewCell.PaintPadding(g, cellValueBounds, cellStyle, cachedBrush, base.DataGridView.RightToLeftInternal);
}
if (DataGridViewCell.PaintContentForeground(paintParts))
{
if (image != null)
{
ImageAttributes imageAttr = new ImageAttributes();
imageAttr.SetWrapMode(WrapMode.TileFlipXY);
g.DrawImage(image, destRect, 0, 0, image.Width, image.Height, GraphicsUnit.Pixel, imageAttr);
imageAttr.Dispose();
}
else
{
g.DrawIcon(icon, destRect);
}
}
}
empty = destRect;
goto Label_037E;
}
Rectangle a = this.ImgBounds(destRect, (image == null) ? icon.Width : image.Width, (image == null) ? icon.Height : image.Height, imageLayout, cellStyle);
empty = a;
if (paint)
{
if (DataGridViewCell.PaintBackground(paintParts) && (cachedBrush.Color.A == 0xff))
{
g.FillRectangle(cachedBrush, cellValueBounds);
}
if (DataGridViewCell.PaintContentForeground(paintParts))
{
Region clip = g.Clip;
g.SetClip(Rectangle.Intersect(Rectangle.Intersect(a, destRect), Rectangle.Truncate(g.VisibleClipBounds)));
if (image != null)
{
g.DrawImage(image, a);
}
else
{
g.DrawIconUnstretched(icon, a);
}
g.Clip = clip;
}
}
}
else
{
if ((paint && DataGridViewCell.PaintBackground(paintParts)) && (cachedBrush.Color.A == 0xff))
{
g.FillRectangle(cachedBrush, cellValueBounds);
}
empty = Rectangle.Empty;
}
}
else
{
if ((paint && DataGridViewCell.PaintBackground(paintParts)) && (cachedBrush.Color.A == 0xff))
{
g.FillRectangle(cachedBrush, cellValueBounds);
}
empty = Rectangle.Empty;
}
Label_037E:
point = base.DataGridView.CurrentCellAddress;
if (((paint && DataGridViewCell.PaintFocus(paintParts)) && ((point.X == base.ColumnIndex) && (point.Y == rowIndex))) && (base.DataGridView.ShowFocusCues && base.DataGridView.Focused))
{
ControlPaint.DrawFocusRectangle(g, cellValueBounds, Color.Empty, cachedBrush.Color);
}
if ((base.DataGridView.ShowCellErrors && paint) && DataGridViewCell.PaintErrorIcon(paintParts))
{
base.PaintErrorIcon(g, cellStyle, rowIndex, cellBounds, cellValueBounds, errorText);
}
return(empty);
}
