/// <summary>
/// Draws the whole legend
/// </summary>
/// <param name="pane">The pane.</param>
public void Draw(GraphPane pane)
{
int column = 0, row = 0;
if (_legendEntries.Count != 0)
{
if (_legendEntries[0].PosSet == false)
{
foreach (LegendEntry Item in _legendEntries)
{//calculate each entries position
Item.XPos = -1 + 2 * (_innerRect.X + column * (_entrySpaceX + _entryGapX)) / pane.Rect.Width;
Item.YPos = -1 + 2 * (_innerRect.Y + _innerRect.Height - (float)(row * _lineHeight)) / pane.Rect.Height;
Item.PosSet = true;
//generate the vertices for the colored lines
Item.line = new float[4] {
Item.XPos, Item.YPos - (float)_lineHeight / (2 * pane.Rect.Height),
Item.XPos + _colorLineLen / pane.Rect.Width, Item.YPos - (float)_lineHeight / (2 * pane.Rect.Height)
};
//step through rows and columns of the legend
column++;
if (column >= _nEntriesVert)
{
column = 0;
row++;
}
}
}
}
_border.Draw(_rect);//draw the border, then the text, then the lines.
_textInstance.DrawLegendText(_legendEntries, 2 * (float)_colorLineLen / pane.Rect.Width, 2 * _textLen / pane.Rect.Width, pane);
DrawLegendLines(pane);
}
/// <summary>
/// Draws the pane frame.
/// </summary>
public void DrawPaneFrame()
{
GLRectangleF rect = new GLRectangleF(_rect.X, _rect.Y, _rect.Width - 1, _rect.Height - 1);
_glBorder.Draw(rect);
}