protected void DoDraw(Graphics g, DockItem item)
{
DrawEventArgs e = new DrawEventArgs(g, item);
OnDraw(e);
}
/// <summary>
/// Use this method to define if the caption of the dock item will be painted
/// </summary>
/// <param name="item">The Dock Item.</param>
/// <returns></returns>
public virtual bool CaptionVisible(DockItem item)
{
return(false);
}
private void DoEnterItem(DockItem item)
{
DockItemEventArgs e = new DockItemEventArgs(item, MouseButtons.None);
OnEnterItem(e);
}
private void DoSelectItem(DockItem item, MouseButtons button)
{
DockItemEventArgs e = new DockItemEventArgs(item, button);
OnSelectItem(e);
}
public virtual void PaintCaption(Graphics canvas, DockItem item, bool scaleCaption)
{
if (item == null)
{
return;
}
if (canvas == null)
{
return;
}
if (!string.IsNullOrEmpty(item.Caption))
{
Font cFont = null;
int captionWidth = 0;
int captionHeight = 0;
try
{
if (scaleCaption)
{
cFont = new Font(this.Font.Name, this.Font.Size * item.Scale, this.Font.Style, GraphicsUnit.Point);
StringFormat format = (StringFormat)StringFormat.GenericTypographic;
try
{
format.FormatFlags |= StringFormatFlags.MeasureTrailingSpaces;
SizeF captionSizeF = canvas.MeasureString(item.Caption, cFont, new PointF(0, 0), format);
captionHeight = (int)captionSizeF.Height;
captionWidth = (int)captionSizeF.Width;
int posX = (int)(item.PaintWidth / 2) + item.X - captionWidth;
int posY = (int)(item.Y + (item.Height - item.ReflectionDepth) * item.Scale);
TextPainter.DrawString(canvas, item.Caption, cFont, posX, posY, captionWidth * 2, captionHeight * 2, this.ForeColor, true);
}
finally
{
format.Dispose();
format = null;
}
}
else
{
StringFormat format = (StringFormat)StringFormat.GenericTypographic;
try
{
format.FormatFlags |= StringFormatFlags.MeasureTrailingSpaces;
SizeF captionSizeF = canvas.MeasureString(item.Caption, this.Font, new PointF(0, 0), format);
captionHeight = (int)captionSizeF.Height;
captionWidth = (int)captionSizeF.Width;
int posX = (int)(item.PaintWidth / 2) + item.X - captionWidth;
int posY = (int)(item.Y + (item.Height - item.ReflectionDepth) * item.Scale);
TextPainter.DrawString(canvas, item.Caption, this.Font, posX, posY, captionWidth * 2, captionHeight * 2, this.ForeColor, true);
}
finally
{
format.Dispose();
format = null;
}
}
}
finally
{
if (cFont != null)
{
cFont.Dispose();
cFont = null;
}
}
}
}
public DockItemEventArgs(DockItem item, MouseButtons button)
{
this.item = item;
this.button = button;
}