protected override Size GetPreferredSize(Graphics graphics, DataGridViewCellStyle cellStyle, int rowIndex, Size constraintSize)
{
if (DataGridView == null)
{
return(new Size(-1, -1));
}
if (cellStyle == null)
{
throw new ArgumentNullException(nameof(cellStyle));
}
Size preferredSize;
Rectangle borderWidthsRect = StdBorderWidths;
int borderAndPaddingWidths = borderWidthsRect.Left + borderWidthsRect.Width + cellStyle.Padding.Horizontal;
int borderAndPaddingHeights = borderWidthsRect.Top + borderWidthsRect.Height + cellStyle.Padding.Vertical;
DataGridViewFreeDimension freeDimension = DataGridViewCell.GetFreeDimensionFromConstraint(constraintSize);
object formattedValue = GetFormattedValue(rowIndex, ref cellStyle, DataGridViewDataErrorContexts.Formatting | DataGridViewDataErrorContexts.PreferredSize);
string formattedString = formattedValue as string;
if (string.IsNullOrEmpty(formattedString))
{
formattedString = " ";
}
TextFormatFlags flags = DataGridViewUtilities.ComputeTextFormatFlagsForCellStyleAlignment(DataGridView.RightToLeftInternal, cellStyle.Alignment, cellStyle.WrapMode);
if (cellStyle.WrapMode == DataGridViewTriState.True && formattedString.Length > 1)
{
switch (freeDimension)
{
case DataGridViewFreeDimension.Width:
{
preferredSize = new Size(DataGridViewCell.MeasureTextWidth(graphics,
formattedString,
cellStyle.Font,
Math.Max(1, constraintSize.Height - borderAndPaddingHeights - DATAGRIDVIEWTEXTBOXCELL_verticalTextMarginTopWithWrapping - DATAGRIDVIEWTEXTBOXCELL_verticalTextMarginBottom),
flags),
0);
break;
}
case DataGridViewFreeDimension.Height:
{
preferredSize = new Size(0,
DataGridViewCell.MeasureTextHeight(graphics,
formattedString,
cellStyle.Font,
Math.Max(1, constraintSize.Width - borderAndPaddingWidths - DATAGRIDVIEWTEXTBOXCELL_horizontalTextMarginLeft - DATAGRIDVIEWTEXTBOXCELL_horizontalTextMarginRight),
flags));
break;
}
default:
{
preferredSize = DataGridViewCell.MeasureTextPreferredSize(graphics,
formattedString,
cellStyle.Font,
5.0F,
flags);
break;
}
}
}
else
{
switch (freeDimension)
{
case DataGridViewFreeDimension.Width:
{
preferredSize = new Size(DataGridViewCell.MeasureTextSize(graphics, formattedString, cellStyle.Font, flags).Width,
0);
break;
}
case DataGridViewFreeDimension.Height:
{
preferredSize = new Size(0,
DataGridViewCell.MeasureTextSize(graphics, formattedString, cellStyle.Font, flags).Height);
break;
}
default:
{
preferredSize = DataGridViewCell.MeasureTextSize(graphics, formattedString, cellStyle.Font, flags);
break;
}
}
}
if (freeDimension != DataGridViewFreeDimension.Height)
{
preferredSize.Width += DATAGRIDVIEWTEXTBOXCELL_horizontalTextMarginLeft + DATAGRIDVIEWTEXTBOXCELL_horizontalTextMarginRight + borderAndPaddingWidths;
if (DataGridView.ShowCellErrors)
{
// Making sure that there is enough room for the potential error icon
preferredSize.Width = Math.Max(preferredSize.Width, borderAndPaddingWidths + DATAGRIDVIEWCELL_iconMarginWidth * 2 + iconsWidth);
}
}
if (freeDimension != DataGridViewFreeDimension.Width)
{
int verticalTextMarginTop = cellStyle.WrapMode == DataGridViewTriState.True ? DATAGRIDVIEWTEXTBOXCELL_verticalTextMarginTopWithWrapping : DATAGRIDVIEWTEXTBOXCELL_verticalTextMarginTopWithoutWrapping;
preferredSize.Height += verticalTextMarginTop + DATAGRIDVIEWTEXTBOXCELL_verticalTextMarginBottom + borderAndPaddingHeights;
if (DataGridView.ShowCellErrors)
{
// Making sure that there is enough room for the potential error icon
preferredSize.Height = Math.Max(preferredSize.Height, borderAndPaddingHeights + DATAGRIDVIEWCELL_iconMarginHeight * 2 + iconsHeight);
}
}
return(preferredSize);
}
protected override Size GetPreferredSize(Graphics graphics, DataGridViewCellStyle cellStyle, int rowIndex, Size constraintSize)
{
Size size;
int num3;
int num4;
if (base.DataGridView == null)
{
return(new Size(-1, -1));
}
if (cellStyle == null)
{
throw new ArgumentNullException("cellStyle");
}
Rectangle stdBorderWidths = base.StdBorderWidths;
int num = (stdBorderWidths.Left + stdBorderWidths.Width) + cellStyle.Padding.Horizontal;
int num2 = (stdBorderWidths.Top + stdBorderWidths.Height) + cellStyle.Padding.Vertical;
DataGridViewFreeDimension freeDimensionFromConstraint = DataGridViewCell.GetFreeDimensionFromConstraint(constraintSize);
string str = base.GetFormattedValue(rowIndex, ref cellStyle, DataGridViewDataErrorContexts.PreferredSize | DataGridViewDataErrorContexts.Formatting) as string;
if (string.IsNullOrEmpty(str))
{
str = " ";
}
TextFormatFlags flags = DataGridViewUtilities.ComputeTextFormatFlagsForCellStyleAlignment(base.DataGridView.RightToLeftInternal, cellStyle.Alignment, cellStyle.WrapMode);
if (base.DataGridView.ApplyVisualStylesToInnerCells)
{
Rectangle themeMargins = GetThemeMargins(graphics);
num3 = themeMargins.X + themeMargins.Width;
num4 = themeMargins.Y + themeMargins.Height;
}
else
{
num3 = num4 = 5;
}
switch (freeDimensionFromConstraint)
{
case DataGridViewFreeDimension.Height:
if (((cellStyle.WrapMode != DataGridViewTriState.True) || (str.Length <= 1)) || ((((constraintSize.Width - num) - num3) - 4) <= 0))
{
size = new Size(0, DataGridViewCell.MeasureTextSize(graphics, str, cellStyle.Font, flags).Height);
break;
}
size = new Size(0, DataGridViewCell.MeasureTextHeight(graphics, str, cellStyle.Font, ((constraintSize.Width - num) - num3) - 4, flags));
break;
case DataGridViewFreeDimension.Width:
if (((cellStyle.WrapMode != DataGridViewTriState.True) || (str.Length <= 1)) || ((((constraintSize.Height - num2) - num4) - 2) <= 0))
{
size = new Size(DataGridViewCell.MeasureTextSize(graphics, str, cellStyle.Font, flags).Width, 0);
break;
}
size = new Size(DataGridViewCell.MeasureTextWidth(graphics, str, cellStyle.Font, ((constraintSize.Height - num2) - num4) - 2, flags), 0);
break;
default:
if ((cellStyle.WrapMode == DataGridViewTriState.True) && (str.Length > 1))
{
size = DataGridViewCell.MeasureTextPreferredSize(graphics, str, cellStyle.Font, 5f, flags);
}
else
{
size = DataGridViewCell.MeasureTextSize(graphics, str, cellStyle.Font, flags);
}
break;
}
if (freeDimensionFromConstraint != DataGridViewFreeDimension.Height)
{
size.Width += (num + num3) + 4;
if (base.DataGridView.ShowCellErrors)
{
size.Width = Math.Max(size.Width, (num + 8) + 12);
}
}
if (freeDimensionFromConstraint != DataGridViewFreeDimension.Width)
{
size.Height += (num2 + num4) + 2;
if (base.DataGridView.ShowCellErrors)
{
size.Height = Math.Max(size.Height, (num2 + 8) + 11);
}
}
return(size);
}
/// <include file='doc\DataGridViewUtilities.uex' path='docs/doc[@for="DataGridViewUtilities.GetPreferredRowHeaderSize"]/*' />
internal static Size GetPreferredRowHeaderSize(Graphics graphics,
string val,
DataGridViewCellStyle cellStyle,
int borderAndPaddingWidths,
int borderAndPaddingHeights,
bool showRowErrors,
bool showGlyph,
Size constraintSize,
TextFormatFlags flags)
{
Size preferredSize;
DataGridViewFreeDimension freeDimension = DataGridViewCell.GetFreeDimensionFromConstraint(constraintSize);
switch (freeDimension)
{
case DataGridViewFreeDimension.Width:
{
int preferredWidth = 0, allowedHeight = constraintSize.Height - borderAndPaddingHeights;
if (!string.IsNullOrEmpty(val))
{
int maxHeight = allowedHeight - 2 * DATAGRIDVIEWROWHEADERCELL_verticalTextMargin;
if (maxHeight > 0)
{
if (cellStyle.WrapMode == DataGridViewTriState.True)
{
preferredWidth = DataGridViewCell.MeasureTextWidth(graphics, val, cellStyle.Font, maxHeight, flags);
}
else
{
preferredWidth = DataGridViewCell.MeasureTextSize(graphics, val, cellStyle.Font, flags).Width;
}
preferredWidth += 2 * DATAGRIDVIEWROWHEADERCELL_contentMarginWidth + DATAGRIDVIEWROWHEADERCELL_horizontalTextMarginLeft + DATAGRIDVIEWROWHEADERCELL_horizontalTextMarginRight;
}
}
if (allowedHeight >= DATAGRIDVIEWROWHEADERCELL_iconsHeight + 2 * DATAGRIDVIEWROWHEADERCELL_iconMarginHeight)
{
if (showGlyph)
{
preferredWidth += DATAGRIDVIEWROWHEADERCELL_iconsWidth + 2 * DATAGRIDVIEWROWHEADERCELL_iconMarginWidth;
}
if (showRowErrors)
{
preferredWidth += DATAGRIDVIEWROWHEADERCELL_iconsWidth + 2 * DATAGRIDVIEWROWHEADERCELL_iconMarginWidth;
}
}
preferredWidth = Math.Max(preferredWidth, 1);
preferredWidth += borderAndPaddingWidths;
return(new Size(preferredWidth, 0));
}
case DataGridViewFreeDimension.Height:
{
int minHeightIcon = 1, minHeightContent = 1;
int allowedWidth = constraintSize.Width - borderAndPaddingWidths;
if (!string.IsNullOrEmpty(val))
{
if (showGlyph && allowedWidth >= 2 * DATAGRIDVIEWROWHEADERCELL_iconMarginWidth + DATAGRIDVIEWROWHEADERCELL_iconsWidth)
{
// There is enough room for the status icon
minHeightIcon = DATAGRIDVIEWROWHEADERCELL_iconsHeight + 2 * DATAGRIDVIEWROWHEADERCELL_iconMarginHeight;
// Status icon takes priority
allowedWidth -= 2 * DATAGRIDVIEWROWHEADERCELL_iconMarginWidth + DATAGRIDVIEWROWHEADERCELL_iconsWidth;
}
if (showRowErrors && allowedWidth >= 2 * DATAGRIDVIEWROWHEADERCELL_iconMarginWidth + DATAGRIDVIEWROWHEADERCELL_iconsWidth)
{
// There is enough room for the error icon
minHeightIcon = DATAGRIDVIEWROWHEADERCELL_iconsHeight + 2 * DATAGRIDVIEWROWHEADERCELL_iconMarginHeight;
// There is enough room for both the status and error icons
allowedWidth -= 2 * DATAGRIDVIEWROWHEADERCELL_iconMarginWidth + DATAGRIDVIEWROWHEADERCELL_iconsWidth;
}
if (allowedWidth > 2 * DATAGRIDVIEWROWHEADERCELL_contentMarginWidth +
DATAGRIDVIEWROWHEADERCELL_horizontalTextMarginLeft +
DATAGRIDVIEWROWHEADERCELL_horizontalTextMarginRight)
{
// There is enough room for text
allowedWidth -= 2 * DATAGRIDVIEWROWHEADERCELL_contentMarginWidth +
DATAGRIDVIEWROWHEADERCELL_horizontalTextMarginLeft +
DATAGRIDVIEWROWHEADERCELL_horizontalTextMarginRight;
if (cellStyle.WrapMode == DataGridViewTriState.True)
{
minHeightContent = DataGridViewCell.MeasureTextHeight(graphics, val, cellStyle.Font, allowedWidth, flags);
}
else
{
minHeightContent = DataGridViewCell.MeasureTextSize(graphics, val, cellStyle.Font, flags).Height;
}
minHeightContent += 2 * DATAGRIDVIEWROWHEADERCELL_verticalTextMargin;
}
}
else
{
if ((showGlyph || showRowErrors) && allowedWidth >= 2 * DATAGRIDVIEWROWHEADERCELL_iconMarginWidth + DATAGRIDVIEWROWHEADERCELL_iconsWidth)
{
minHeightIcon = DATAGRIDVIEWROWHEADERCELL_iconsHeight + 2 * DATAGRIDVIEWROWHEADERCELL_iconMarginHeight;
}
}
return(new Size(0, Math.Max(minHeightIcon, minHeightContent) + borderAndPaddingHeights));
}
default:
{
if (!string.IsNullOrEmpty(val))
{
if (cellStyle.WrapMode == DataGridViewTriState.True)
{
preferredSize = DataGridViewCell.MeasureTextPreferredSize(graphics, val, cellStyle.Font, 5.0F, flags);
}
else
{
preferredSize = DataGridViewCell.MeasureTextSize(graphics, val, cellStyle.Font, flags);
}
preferredSize.Width += 2 * DATAGRIDVIEWROWHEADERCELL_contentMarginWidth +
DATAGRIDVIEWROWHEADERCELL_horizontalTextMarginLeft +
DATAGRIDVIEWROWHEADERCELL_horizontalTextMarginRight;
preferredSize.Height += 2 * DATAGRIDVIEWROWHEADERCELL_verticalTextMargin;
}
else
{
preferredSize = new Size(0, 1);
}
if (showGlyph)
{
preferredSize.Width += DATAGRIDVIEWROWHEADERCELL_iconsWidth + 2 * DATAGRIDVIEWROWHEADERCELL_iconMarginWidth;
}
if (showRowErrors)
{
preferredSize.Width += DATAGRIDVIEWROWHEADERCELL_iconsWidth + 2 * DATAGRIDVIEWROWHEADERCELL_iconMarginWidth;
}
if (showGlyph || showRowErrors)
{
preferredSize.Height = Math.Max(preferredSize.Height,
DATAGRIDVIEWROWHEADERCELL_iconsHeight + 2 * DATAGRIDVIEWROWHEADERCELL_iconMarginHeight);
}
preferredSize.Width += borderAndPaddingWidths;
preferredSize.Height += borderAndPaddingHeights;
return(preferredSize);
}
}
}
