private Rectangle PaintPrivate(Graphics graphics,
Rectangle clipBounds,
Rectangle cellBounds,
int rowIndex,
DataGridViewElementStates dataGridViewElementState,
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 computeContentBounds == TRUE then resultBounds will be the contentBounds.
// If computeErrorIconBounds == TRUE then resultBounds will be the error icon bounds.
// Else resultBounds will be Rectangle.Empty;
Rectangle resultBounds = Rectangle.Empty;
if (paint && DataGridViewCell.PaintBorder(paintParts))
{
PaintBorder(graphics, clipBounds, cellBounds, cellStyle, advancedBorderStyle);
}
Rectangle valBounds = cellBounds;
Rectangle borderWidths = BorderWidths(advancedBorderStyle);
valBounds.Offset(borderWidths.X, borderWidths.Y);
valBounds.Width -= borderWidths.Right;
valBounds.Height -= borderWidths.Bottom;
Rectangle backgroundBounds = valBounds;
bool cellSelected = (dataGridViewElementState & DataGridViewElementStates.Selected) != 0;
if (DataGridView.ApplyVisualStylesToHeaderCells)
{
if (cellStyle.Padding != Padding.Empty)
{
if (DataGridView.RightToLeftInternal)
{
valBounds.Offset(cellStyle.Padding.Right, cellStyle.Padding.Top);
}
else
{
valBounds.Offset(cellStyle.Padding.Left, cellStyle.Padding.Top);
}
valBounds.Width -= cellStyle.Padding.Horizontal;
valBounds.Height -= cellStyle.Padding.Vertical;
}
if (backgroundBounds.Width > 0 && backgroundBounds.Height > 0)
{
if (paint && DataGridViewCell.PaintBackground(paintParts))
{
// Theming
int state = (int)HeaderItemState.Normal;
if (DataGridView.SelectionMode == DataGridViewSelectionMode.FullRowSelect ||
DataGridView.SelectionMode == DataGridViewSelectionMode.RowHeaderSelect)
{
if (ButtonState != ButtonState.Normal)
{
Debug.Assert(ButtonState == ButtonState.Pushed);
state = (int)HeaderItemState.Pressed;
}
else if (DataGridView.MouseEnteredCellAddress.Y == rowIndex &&
DataGridView.MouseEnteredCellAddress.X == -1)
{
state = (int)HeaderItemState.Hot;
}
else if (cellSelected)
{
state = (int)HeaderItemState.Pressed;
}
}
// Flip the column header background
using (Bitmap bmFlipXPThemes = new Bitmap(backgroundBounds.Height, backgroundBounds.Width))
{
using (Graphics gFlip = Graphics.FromImage(bmFlipXPThemes))
{
DataGridViewRowHeaderCellRenderer.DrawHeader(gFlip, new Rectangle(0, 0, backgroundBounds.Height, backgroundBounds.Width), state);
bmFlipXPThemes.RotateFlip(DataGridView.RightToLeftInternal ? RotateFlipType.Rotate90FlipNone : RotateFlipType.Rotate270FlipY);
graphics.DrawImage(bmFlipXPThemes,
backgroundBounds,
new Rectangle(0, 0, backgroundBounds.Width, backgroundBounds.Height),
GraphicsUnit.Pixel);
}
}
}
// update the val bounds
Rectangle rectThemeMargins = GetThemeMargins(graphics);
if (DataGridView.RightToLeftInternal)
{
valBounds.X += rectThemeMargins.Height;
}
else
{
valBounds.X += rectThemeMargins.Y;
}
valBounds.Width -= rectThemeMargins.Y + rectThemeMargins.Height;
valBounds.Height -= rectThemeMargins.X + rectThemeMargins.Width;
valBounds.Y += rectThemeMargins.X;
}
}
else
{
// No visual style applied
if (valBounds.Width > 0 && valBounds.Height > 0)
{
Color brushColor = PaintSelectionBackground(paintParts) && cellSelected
? cellStyle.SelectionBackColor
: cellStyle.BackColor;
if (paint && PaintBackground(paintParts) && !brushColor.HasTransparency())
{
using var brush = brushColor.GetCachedSolidBrushScope();
graphics.FillRectangle(brush, valBounds);
}
}
if (cellStyle.Padding != Padding.Empty)
{
if (DataGridView.RightToLeftInternal)
{
valBounds.Offset(cellStyle.Padding.Right, cellStyle.Padding.Top);
}
else
{
valBounds.Offset(cellStyle.Padding.Left, cellStyle.Padding.Top);
}
valBounds.Width -= cellStyle.Padding.Horizontal;
valBounds.Height -= cellStyle.Padding.Vertical;
}
}
Bitmap bmp = null;
if (valBounds.Width > 0 && valBounds.Height > 0)
{
Rectangle errorBounds = valBounds;
string formattedString = formattedValue as string;
if (!string.IsNullOrEmpty(formattedString))
{
// There is text to display
if (valBounds.Width >= s_iconsWidth +
2 * RowHeaderIconMarginWidth &&
valBounds.Height >= s_iconsHeight +
2 * RowHeaderIconMarginHeight)
{
if (paint && DataGridViewCell.PaintContentBackground(paintParts))
{
// There is enough room for the potential glyph which is the first priority
if (DataGridView.CurrentCellAddress.Y == rowIndex)
{
if (DataGridView.VirtualMode)
{
if (DataGridView.IsCurrentRowDirty && DataGridView.ShowEditingIcon)
{
bmp = GetPencilBitmap(DataGridView.RightToLeftInternal);
}
else if (DataGridView.NewRowIndex == rowIndex)
{
bmp = GetArrowStarBitmap(DataGridView.RightToLeftInternal);
}
else
{
bmp = GetArrowBitmap(DataGridView.RightToLeftInternal);
}
}
else
{
if (DataGridView.IsCurrentCellDirty && DataGridView.ShowEditingIcon)
{
bmp = GetPencilBitmap(DataGridView.RightToLeftInternal);
}
else if (DataGridView.NewRowIndex == rowIndex)
{
bmp = GetArrowStarBitmap(DataGridView.RightToLeftInternal);
}
else
{
bmp = GetArrowBitmap(DataGridView.RightToLeftInternal);
}
}
}
else if (DataGridView.NewRowIndex == rowIndex)
{
bmp = DataGridViewRowHeaderCell.StarBitmap;
}
if (bmp != null)
{
Color iconColor;
if (DataGridView.ApplyVisualStylesToHeaderCells)
{
iconColor = DataGridViewRowHeaderCellRenderer.VisualStyleRenderer.GetColor(ColorProperty.TextColor);
}
else
{
iconColor = cellSelected ? cellStyle.SelectionForeColor : cellStyle.ForeColor;
}
lock (bmp)
{
PaintIcon(graphics, bmp, valBounds, iconColor);
}
}
}
if (!DataGridView.RightToLeftInternal)
{
valBounds.X += s_iconsWidth + 2 * RowHeaderIconMarginWidth;
}
valBounds.Width -= s_iconsWidth + 2 * RowHeaderIconMarginWidth;
Debug.Assert(valBounds.Width >= 0);
Debug.Assert(valBounds.Height >= 0);
}
// Second priority is text
// Font independent margins
valBounds.Offset(HorizontalTextMarginLeft + ContentMarginWidth, VerticalTextMargin);
valBounds.Width -= HorizontalTextMarginLeft + 2 * ContentMarginWidth + HorizontalTextMarginRight;
valBounds.Height -= 2 * VerticalTextMargin;
if (valBounds.Width > 0 && valBounds.Height > 0)
{
TextFormatFlags flags = DataGridViewUtilities.ComputeTextFormatFlagsForCellStyleAlignment(DataGridView.RightToLeftInternal, cellStyle.Alignment, cellStyle.WrapMode);
if (DataGridView.ShowRowErrors && valBounds.Width > s_iconsWidth + 2 * RowHeaderIconMarginWidth)
{
// Check if the text fits if we remove the room required for the row error icon
Size maxBounds = new Size(valBounds.Width - s_iconsWidth - 2 * RowHeaderIconMarginWidth, valBounds.Height);
if (DataGridViewCell.TextFitsInBounds(graphics,
formattedString,
cellStyle.Font,
maxBounds,
flags))
{
// There is enough room for both the text and the row error icon, so use it all.
if (DataGridView.RightToLeftInternal)
{
valBounds.X += s_iconsWidth + 2 * RowHeaderIconMarginWidth;
}
valBounds.Width -= s_iconsWidth + 2 * RowHeaderIconMarginWidth;
}
}
if (DataGridViewCell.PaintContentForeground(paintParts))
{
if (paint)
{
Color textColor;
if (DataGridView.ApplyVisualStylesToHeaderCells)
{
textColor = DataGridViewRowHeaderCellRenderer.VisualStyleRenderer.GetColor(ColorProperty.TextColor);
}
else
{
textColor = cellSelected ? cellStyle.SelectionForeColor : cellStyle.ForeColor;
}
if ((flags & TextFormatFlags.SingleLine) != 0)
{
flags |= TextFormatFlags.EndEllipsis;
}
TextRenderer.DrawText(graphics,
formattedString,
cellStyle.Font,
valBounds,
textColor,
flags);
}
else if (computeContentBounds)
{
resultBounds = DataGridViewUtilities.GetTextBounds(valBounds, formattedString, flags, cellStyle);
}
}
}
// Third priority is the row error icon, which may be painted on top of text
if (errorBounds.Width >= 3 * RowHeaderIconMarginWidth +
2 * s_iconsWidth)
{
// There is enough horizontal room for the error icon and the glyph
if (paint && DataGridView.ShowRowErrors && DataGridViewCell.PaintErrorIcon(paintParts))
{
PaintErrorIcon(graphics, clipBounds, errorBounds, errorText);
}
else if (computeErrorIconBounds)
{
if (!string.IsNullOrEmpty(errorText))
{
resultBounds = ComputeErrorIconBounds(errorBounds);
}
}
}
}
else
{
// There is no text to display
if (valBounds.Width >= s_iconsWidth + 2 * RowHeaderIconMarginWidth &&
valBounds.Height >= s_iconsHeight + 2 * RowHeaderIconMarginHeight)
{
if (paint && DataGridViewCell.PaintContentBackground(paintParts))
{
// There is enough room for the potential icon
if (DataGridView.CurrentCellAddress.Y == rowIndex)
{
if (DataGridView.VirtualMode)
{
if (DataGridView.IsCurrentRowDirty && DataGridView.ShowEditingIcon)
{
bmp = GetPencilBitmap(DataGridView.RightToLeftInternal);
}
else if (DataGridView.NewRowIndex == rowIndex)
{
bmp = GetArrowStarBitmap(DataGridView.RightToLeftInternal);
}
else
{
bmp = GetArrowBitmap(DataGridView.RightToLeftInternal);
}
}
else
{
if (DataGridView.IsCurrentCellDirty && DataGridView.ShowEditingIcon)
{
bmp = GetPencilBitmap(DataGridView.RightToLeftInternal);
}
else if (DataGridView.NewRowIndex == rowIndex)
{
bmp = GetArrowStarBitmap(DataGridView.RightToLeftInternal);
}
else
{
bmp = GetArrowBitmap(DataGridView.RightToLeftInternal);
}
}
}
else if (DataGridView.NewRowIndex == rowIndex)
{
bmp = DataGridViewRowHeaderCell.StarBitmap;
}
if (bmp != null)
{
lock (bmp)
{
Color iconColor;
if (DataGridView.ApplyVisualStylesToHeaderCells)
{
iconColor = DataGridViewRowHeaderCellRenderer.VisualStyleRenderer.GetColor(ColorProperty.TextColor);
}
else
{
iconColor = cellSelected ? cellStyle.SelectionForeColor : cellStyle.ForeColor;
}
PaintIcon(graphics, bmp, valBounds, iconColor);
}
}
}
}
if (errorBounds.Width >= 3 * RowHeaderIconMarginWidth +
2 * s_iconsWidth)
{
// There is enough horizontal room for the error icon
if (paint && DataGridView.ShowRowErrors && DataGridViewCell.PaintErrorIcon(paintParts))
{
PaintErrorIcon(graphics, cellStyle, rowIndex, cellBounds, errorBounds, errorText);
}
else if (computeErrorIconBounds)
{
if (!string.IsNullOrEmpty(errorText))
{
resultBounds = ComputeErrorIconBounds(errorBounds);
}
}
}
}
}
// else no room for content or error icon, resultBounds = Rectangle.Empty
return(resultBounds);
}
private Rectangle PaintPrivate(Graphics graphics, Rectangle clipBounds, Rectangle cellBounds, int rowIndex, DataGridViewElementStates dataGridViewElementState, object formattedValue, string errorText, DataGridViewCellStyle cellStyle, DataGridViewAdvancedBorderStyle advancedBorderStyle, DataGridViewPaintParts paintParts, bool computeContentBounds, bool computeErrorIconBounds, bool paint)
{
Rectangle empty = Rectangle.Empty;
if (paint && DataGridViewCell.PaintBorder(paintParts))
{
this.PaintBorder(graphics, clipBounds, cellBounds, cellStyle, advancedBorderStyle);
}
Rectangle rect = cellBounds;
Rectangle rectangle3 = this.BorderWidths(advancedBorderStyle);
rect.Offset(rectangle3.X, rectangle3.Y);
rect.Width -= rectangle3.Right;
rect.Height -= rectangle3.Bottom;
Rectangle destRect = rect;
bool flag = (dataGridViewElementState & DataGridViewElementStates.Selected) != DataGridViewElementStates.None;
if (base.DataGridView.ApplyVisualStylesToHeaderCells)
{
if (cellStyle.Padding != Padding.Empty)
{
if (base.DataGridView.RightToLeftInternal)
{
rect.Offset(cellStyle.Padding.Right, cellStyle.Padding.Top);
}
else
{
rect.Offset(cellStyle.Padding.Left, cellStyle.Padding.Top);
}
rect.Width -= cellStyle.Padding.Horizontal;
rect.Height -= cellStyle.Padding.Vertical;
}
if ((destRect.Width > 0) && (destRect.Height > 0))
{
if (paint && DataGridViewCell.PaintBackground(paintParts))
{
int headerState = 1;
if ((base.DataGridView.SelectionMode == DataGridViewSelectionMode.FullRowSelect) || (base.DataGridView.SelectionMode == DataGridViewSelectionMode.RowHeaderSelect))
{
if (base.ButtonState != ButtonState.Normal)
{
headerState = 3;
}
else if ((base.DataGridView.MouseEnteredCellAddress.Y == rowIndex) && (base.DataGridView.MouseEnteredCellAddress.X == -1))
{
headerState = 2;
}
else if (flag)
{
headerState = 3;
}
}
using (Bitmap bitmap = new Bitmap(destRect.Height, destRect.Width))
{
using (Graphics graphics2 = Graphics.FromImage(bitmap))
{
DataGridViewRowHeaderCellRenderer.DrawHeader(graphics2, new Rectangle(0, 0, destRect.Height, destRect.Width), headerState);
bitmap.RotateFlip(base.DataGridView.RightToLeftInternal ? RotateFlipType.Rotate90FlipNone : RotateFlipType.Rotate90FlipX);
graphics.DrawImage(bitmap, destRect, new Rectangle(0, 0, destRect.Width, destRect.Height), GraphicsUnit.Pixel);
}
}
}
Rectangle themeMargins = DataGridViewHeaderCell.GetThemeMargins(graphics);
if (base.DataGridView.RightToLeftInternal)
{
rect.X += themeMargins.Height;
}
else
{
rect.X += themeMargins.Y;
}
rect.Width -= themeMargins.Y + themeMargins.Height;
rect.Height -= themeMargins.X + themeMargins.Width;
rect.Y += themeMargins.X;
}
}
else
{
if ((rect.Width > 0) && (rect.Height > 0))
{
SolidBrush cachedBrush = base.DataGridView.GetCachedBrush((DataGridViewCell.PaintSelectionBackground(paintParts) && flag) ? cellStyle.SelectionBackColor : cellStyle.BackColor);
if ((paint && DataGridViewCell.PaintBackground(paintParts)) && (cachedBrush.Color.A == 0xff))
{
graphics.FillRectangle(cachedBrush, rect);
}
}
if (cellStyle.Padding != Padding.Empty)
{
if (base.DataGridView.RightToLeftInternal)
{
rect.Offset(cellStyle.Padding.Right, cellStyle.Padding.Top);
}
else
{
rect.Offset(cellStyle.Padding.Left, cellStyle.Padding.Top);
}
rect.Width -= cellStyle.Padding.Horizontal;
rect.Height -= cellStyle.Padding.Vertical;
}
}
Bitmap bmp = null;
if ((rect.Width > 0) && (rect.Height > 0))
{
Rectangle cellValueBounds = rect;
string str = formattedValue as string;
if (!string.IsNullOrEmpty(str))
{
if ((rect.Width >= 0x12) && (rect.Height >= 15))
{
if (paint && DataGridViewCell.PaintContentBackground(paintParts))
{
if (base.DataGridView.CurrentCellAddress.Y == rowIndex)
{
if (base.DataGridView.VirtualMode)
{
if (base.DataGridView.IsCurrentRowDirty && base.DataGridView.ShowEditingIcon)
{
bmp = GetPencilBitmap(base.DataGridView.RightToLeftInternal);
}
else if (base.DataGridView.NewRowIndex == rowIndex)
{
bmp = GetArrowStarBitmap(base.DataGridView.RightToLeftInternal);
}
else
{
bmp = GetArrowBitmap(base.DataGridView.RightToLeftInternal);
}
}
else if (base.DataGridView.IsCurrentCellDirty && base.DataGridView.ShowEditingIcon)
{
bmp = GetPencilBitmap(base.DataGridView.RightToLeftInternal);
}
else if (base.DataGridView.NewRowIndex == rowIndex)
{
bmp = GetArrowStarBitmap(base.DataGridView.RightToLeftInternal);
}
else
{
bmp = GetArrowBitmap(base.DataGridView.RightToLeftInternal);
}
}
else if (base.DataGridView.NewRowIndex == rowIndex)
{
bmp = StarBitmap;
}
if (bmp != null)
{
Color color;
if (base.DataGridView.ApplyVisualStylesToHeaderCells)
{
color = DataGridViewRowHeaderCellRenderer.VisualStyleRenderer.GetColor(ColorProperty.TextColor);
}
else
{
color = flag ? cellStyle.SelectionForeColor : cellStyle.ForeColor;
}
lock (bmp)
{
this.PaintIcon(graphics, bmp, rect, color);
}
}
}
if (!base.DataGridView.RightToLeftInternal)
{
rect.X += 0x12;
}
rect.Width -= 0x12;
}
rect.Offset(4, 1);
rect.Width -= 9;
rect.Height -= 2;
if ((rect.Width > 0) && (rect.Height > 0))
{
TextFormatFlags flags = DataGridViewUtilities.ComputeTextFormatFlagsForCellStyleAlignment(base.DataGridView.RightToLeftInternal, cellStyle.Alignment, cellStyle.WrapMode);
if (base.DataGridView.ShowRowErrors && (rect.Width > 0x12))
{
Size maxBounds = new Size((rect.Width - 12) - 6, rect.Height);
if (DataGridViewCell.TextFitsInBounds(graphics, str, cellStyle.Font, maxBounds, flags))
{
if (base.DataGridView.RightToLeftInternal)
{
rect.X += 0x12;
}
rect.Width -= 0x12;
}
}
if (DataGridViewCell.PaintContentForeground(paintParts))
{
if (paint)
{
Color color2;
if (base.DataGridView.ApplyVisualStylesToHeaderCells)
{
color2 = DataGridViewRowHeaderCellRenderer.VisualStyleRenderer.GetColor(ColorProperty.TextColor);
}
else
{
color2 = flag ? cellStyle.SelectionForeColor : cellStyle.ForeColor;
}
if ((flags & TextFormatFlags.SingleLine) != TextFormatFlags.Default)
{
flags |= TextFormatFlags.EndEllipsis;
}
TextRenderer.DrawText(graphics, str, cellStyle.Font, rect, color2, flags);
}
else if (computeContentBounds)
{
empty = DataGridViewUtilities.GetTextBounds(rect, str, flags, cellStyle);
}
}
}
if (cellValueBounds.Width >= 0x21)
{
if ((paint && base.DataGridView.ShowRowErrors) && DataGridViewCell.PaintErrorIcon(paintParts))
{
this.PaintErrorIcon(graphics, clipBounds, cellValueBounds, errorText);
return(empty);
}
if (computeErrorIconBounds && !string.IsNullOrEmpty(errorText))
{
empty = base.ComputeErrorIconBounds(cellValueBounds);
}
}
return(empty);
}
if (((rect.Width >= 0x12) && (rect.Height >= 15)) && (paint && DataGridViewCell.PaintContentBackground(paintParts)))
{
if (base.DataGridView.CurrentCellAddress.Y == rowIndex)
{
if (base.DataGridView.VirtualMode)
{
if (base.DataGridView.IsCurrentRowDirty && base.DataGridView.ShowEditingIcon)
{
bmp = GetPencilBitmap(base.DataGridView.RightToLeftInternal);
}
else if (base.DataGridView.NewRowIndex == rowIndex)
{
bmp = GetArrowStarBitmap(base.DataGridView.RightToLeftInternal);
}
else
{
bmp = GetArrowBitmap(base.DataGridView.RightToLeftInternal);
}
}
else if (base.DataGridView.IsCurrentCellDirty && base.DataGridView.ShowEditingIcon)
{
bmp = GetPencilBitmap(base.DataGridView.RightToLeftInternal);
}
else if (base.DataGridView.NewRowIndex == rowIndex)
{
bmp = GetArrowStarBitmap(base.DataGridView.RightToLeftInternal);
}
else
{
bmp = GetArrowBitmap(base.DataGridView.RightToLeftInternal);
}
}
else if (base.DataGridView.NewRowIndex == rowIndex)
{
bmp = StarBitmap;
}
if (bmp != null)
{
lock (bmp)
{
Color color3;
if (base.DataGridView.ApplyVisualStylesToHeaderCells)
{
color3 = DataGridViewRowHeaderCellRenderer.VisualStyleRenderer.GetColor(ColorProperty.TextColor);
}
else
{
color3 = flag ? cellStyle.SelectionForeColor : cellStyle.ForeColor;
}
this.PaintIcon(graphics, bmp, rect, color3);
}
}
}
if (cellValueBounds.Width >= 0x21)
{
if ((paint && base.DataGridView.ShowRowErrors) && DataGridViewCell.PaintErrorIcon(paintParts))
{
base.PaintErrorIcon(graphics, cellStyle, rowIndex, cellBounds, cellValueBounds, errorText);
return(empty);
}
if (computeErrorIconBounds && !string.IsNullOrEmpty(errorText))
{
empty = base.ComputeErrorIconBounds(cellValueBounds);
}
}
}
return(empty);
}