private void RenderCell(IFastGridCell cell, IntRect rect, Color?selectedTextColor, Color bgColor, FastGridCellAddress cellAddr)
{
var isHoverCell = !cellAddr.IsEmpty && cellAddr == _mouseOverCell;
if (isHoverCell)
{
_mouseOverCellIsTrimmed = false;
CurrentCellActiveRegions.Clear();
CurrentHoverRegion = null;
}
if (cell == null)
{
return;
}
var rectContent = GetContentRect(rect);
_drawBuffer.DrawRectangle(rect, GridLineColor);
_drawBuffer.FillRectangle(rect.GrowSymmetrical(-1, -1), bgColor);
var count = cell.BlockCount;
var rightCount = cell.RightAlignBlockCount;
var leftCount = count - rightCount;
var leftPos = rectContent.Left;
var rightPos = rectContent.Right;
for (var i = count - 1; i >= count - rightCount; i--)
{
var block = cell.GetBlock(i);
if (block == null)
{
continue;
}
if (i < count - 1)
{
rightPos -= BlockPadding;
}
var blockWi = RenderBlock(leftPos, rightPos, selectedTextColor, bgColor, rectContent, block, cellAddr, false, isHoverCell);
rightPos -= blockWi;
}
for (var i = 0; i < leftCount && leftPos < rightPos; i++)
{
var block = cell.GetBlock(i);
if (block == null)
{
continue;
}
if (i > 0)
{
leftPos += BlockPadding;
}
var blockWi = RenderBlock(leftPos, rightPos, selectedTextColor, bgColor, rectContent, block, cellAddr, true, isHoverCell);
leftPos += blockWi;
}
switch (cell.Decoration)
{
case CellDecoration.StrikeOutHorizontal:
_drawBuffer.DrawLine(rect.Left, rect.Top + rect.Height / 2, rect.Right, rect.Top + rect.Height / 2, cell.DecorationColor ?? Colors.Black);
break;
}
if (isHoverCell)
{
_mouseOverCellIsTrimmed = leftPos > rightPos;
}
}
private int RenderBlock(int leftPos, int rightPos, Color?selectedTextColor, Color bgColor, IntRect rectContent, IFastGridCellBlock block, FastGridCellAddress cellAddr, bool leftAlign, bool isHoverCell)
{
var renderBlock = true;
if (block.MouseHoverBehaviour == MouseHoverBehaviours.HideWhenMouseOut && !isHoverCell)
{
renderBlock = false;
}
int width = 0, top = 0, height = 0;
switch (block.BlockType)
{
case FastGridBlockType.Text:
var font = GetFont(block.IsBold, block.IsItalic);
var textHeight = font.GetTextHeight(block.TextData);
width = font.GetTextWidth(block.TextData, _columnSizes.MaxSize);
height = textHeight;
top = rectContent.Top + (int)Math.Round(rectContent.Height / 2.0 - textHeight / 2.0);
break;
case FastGridBlockType.Image:
top = rectContent.Top + (int)Math.Round(rectContent.Height / 2.0 - block.ImageHeight / 2.0);
height = block.ImageHeight;
width = block.ImageWidth;
break;
}
if (renderBlock && block.CommandParameter != null)
{
var activeRect = new IntRect(new IntPoint(leftAlign ? leftPos : rightPos - width, top), new IntSize(width, height)).GrowSymmetrical(1, 1);
var region = new ActiveRegion
{
CommandParameter = block.CommandParameter,
Rect = activeRect,
Tooltip = block.ToolTip,
};
CurrentCellActiveRegions.Add(region);
if (_mouseCursorPoint.HasValue && activeRect.Contains(_mouseCursorPoint.Value))
{
_drawBuffer.FillRectangle(activeRect, ActiveRegionHoverFillColor);
CurrentHoverRegion = region;
}
var renderRectangle = true;
if (block.MouseHoverBehaviour == MouseHoverBehaviours.HideButtonWhenMouseOut && !isHoverCell)
{
renderRectangle = false;
}
if (renderRectangle)
{
_drawBuffer.DrawRectangle(activeRect, ActiveRegionFrameColor);
}
}
switch (block.BlockType)
{
case FastGridBlockType.Text:
if (renderBlock)
{
var textOrigin = new IntPoint(leftAlign ? leftPos : rightPos - width, top);
var font = GetFont(block.IsBold, block.IsItalic);
_drawBuffer.DrawString(textOrigin.X, textOrigin.Y, rectContent, selectedTextColor ?? block.FontColor ?? CellFontColor, UseClearType ? bgColor : (Color?)null,
font,
block.TextData);
}
break;
case FastGridBlockType.Image:
if (renderBlock)
{
var imgOrigin = new IntPoint(leftAlign ? leftPos : rightPos - block.ImageWidth, top);
var image = GetImage(block.ImageSource);
_drawBuffer.Blit(new Point(imgOrigin.X, imgOrigin.Y), image.Bitmap, new Rect(0, 0, block.ImageWidth, block.ImageHeight),
image.KeyColor, image.BlendMode);
}
break;
}
return(width);
}
