private void drawTokenText(Graphics gc, EventToken token, TokenTextItem item)
{
int dispRow = item.Row;
int dispCol = item.Col;
int dispWidth = item.Width;
bool continued = item.Continued;
bool colHangOver = (LeftColumn > 0 && LeftColumn + DisplayedColumnCount > ColumnCount);
bool rowHangOver = (TopRow > 0 && TopRow + DisplayedRowCount > RowCount);
int xLeft = colHangOver ? (ViewRectangle.Width - DisplayedColumnCount * _colWidth) : 0;
int yTop = rowHangOver ? (ViewRectangle.Height - TrueScaleHeight - DisplayedRowCount * _rowHeight) : 0;
int x1 = _colWidth * dispCol + xLeft;
int y1 = TrueScaleHeight + _rowHeight * dispRow + yTop;
if (x1 < 0)
x1 = 0;
string text = (continued ? "<< " : "") + token.Name;
gc.DrawString(text, (continued ? _italic : _bold),
token.IsHighlighted ? _fontHighlight : _fontColor,
new RectangleF(x1 + 2, y1 + 2, dispWidth * _colWidth - 4, _rowHeight - 4),
new StringFormat() { FormatFlags = StringFormatFlags.NoWrap });
}
private void drawTokens(Graphics gc)
{
gc.Clip = new Region(new Rectangle(0, TrueScaleHeight, ViewRectangle.Width, ViewRectangle.Height - TrueScaleHeight));
bool colHangOver = (LeftColumn > 0 && LeftColumn + DisplayedColumnCount > ColumnCount);
bool rowHangOver = (TopRow > 0 && TopRow + DisplayedRowCount > RowCount);
int colOffset = colHangOver ? -1 : 0;
int rowOffset = rowHangOver ? -1 : 0;
Dictionary<EventToken, TokenTextItem> textItems = new Dictionary<EventToken, TokenTextItem>();
EventToken[] prevBlock = GetInstantTokens(LeftColumn - 1);
EventToken[] block = GetInstantTokens(LeftColumn);
for (int c = 0; c < DisplayedColumnCount; c++)
{
int trueCol = LeftColumn + c + colOffset;
EventToken[] nextBlock = GetInstantTokens(trueCol + 1);
for (int r = 0; r < DisplayedRowCount; r++)
{
int trueRow = TopRow + r + rowOffset;
EventToken token = (block.Length > trueRow) ? block[trueRow] : null;
if (token != null)
{
EventToken prevToken = (prevBlock.Length > trueRow) ? prevBlock[trueRow] : null;
EventToken nextToken = (nextBlock.Length > trueRow) ? nextBlock[trueRow] : null;
drawLeftToken(gc, r, c, token, (prevToken == null || prevToken != token));
drawRightToken(gc, r, c, token, (nextToken == null || nextToken != token));
if (prevToken == null || prevToken != token)
textItems[token] = new TokenTextItem() { Row = r, Col = c, Width = 1, Continued = false };
else if (c == 0)
textItems[token] = new TokenTextItem() { Row = r, Col = c, Width = 1, Continued = true };
else
textItems[token].Width++;
}
}
prevBlock = block;
block = nextBlock;
}
foreach (var item in textItems)
{
drawTokenText(gc, item.Key, item.Value);
}
}
