/// <summary>
/// Paint the box nex to the node
/// </summary>
private void PaintExpandBox(Node oNode, Graphics oGraphics, int nX, int nY,
ref Hashtable m_mapRectToItemBox, ref Hashtable m_mapItemBoxToRect)
{
int nAlpha = oNode.TreeView.GetNodeAlpha(oNode);
Rectangle rect = new Rectangle(nX - 12, nY + 2, 10, 10);
if (oNode.GetShowPlusMinus() == true)
{
if (oNode.Nodes.Count > 0 || oNode.Panel != null)
{
if (oNode.IsExpanded == false)
{
// draw the plus in the box
Pen oPen = null;
if (oNode.Flash == true)
nAlpha = 255;
Rectangle boxRect = new Rectangle(rect.Left + 1, rect.Top + 1, rect.Width - 2, rect.Height - 2);
// if XP line style, then fade the box and paint in black the inner part
if (oNode.GetExpandBoxShape() == ExpandBoxShape.XP)
{
LinearGradientBrush oBrush = new LinearGradientBrush
(
new Rectangle(boxRect.Left, boxRect.Top, boxRect.Width, boxRect.Height),
Color.White,
oNode.GetExpandBoxBackColor(),
LinearGradientMode.Vertical
);
oGraphics.FillRectangle(oBrush, new Rectangle(boxRect.Left + 1, boxRect.Top + 1, boxRect.Width - 1, boxRect.Height - 1));
oPen = new Pen(Color.FromArgb(nAlpha, oNode.GetExpandBoxBorderColor()), 1);
oGraphics.DrawLine(oPen, boxRect.Left + 1, boxRect.Bottom, boxRect.Right - 1, boxRect.Bottom);
oGraphics.DrawLine(oPen, boxRect.Right, boxRect.Top + 1, boxRect.Right, boxRect.Bottom - 1);
oPen.Color = Color.FromArgb(128, oPen.Color);
oGraphics.DrawLine(oPen, boxRect.Left + 1, boxRect.Top, boxRect.Right - 1, boxRect.Top);
oGraphics.DrawLine(oPen, boxRect.Left, boxRect.Top + 1, boxRect.Left, boxRect.Bottom - 1);
}
else
{
oPen = new Pen(Color.FromArgb(nAlpha, oNode.GetExpandBoxBorderColor()), 1);
oGraphics.DrawRectangle(oPen, boxRect);
if (oNode.GetExpandBoxShape() == ExpandBoxShape.Flat)
{
SolidBrush oBrush = new SolidBrush(oNode.GetExpandBoxBackColor());
oGraphics.FillRectangle(oBrush, new Rectangle(boxRect.Left + 1, boxRect.Top + 1, boxRect.Width - 1, boxRect.Height - 1));
}
}
oPen.Color = Color.FromArgb(nAlpha, oNode.GetExpandBoxForeColor());
oGraphics.DrawLine(oPen, nX - 9, nY + 7, nX - 5, nY + 7);
oGraphics.DrawLine(oPen, nX - 7, nY + 9, nX - 7, nY + 5);
oPen.Dispose();
}
else
{
// draw the minus in the box
Pen oPen = null;
if (oNode.Flash == true)
nAlpha = 255;
Rectangle boxRect = new Rectangle(rect.Left + 1, rect.Top + 1, rect.Width - 2, rect.Height - 2);
// if XP line style, then fade the box and paint in black the inner part
if (oNode.GetExpandBoxShape() == ExpandBoxShape.XP)
{
LinearGradientBrush oBrush = new LinearGradientBrush
(
new Rectangle(boxRect.Left, boxRect.Top, boxRect.Width, boxRect.Height),
Color.White,
oNode.GetExpandBoxBackColor(),
LinearGradientMode.Vertical
);
oGraphics.FillRectangle(oBrush, new Rectangle(boxRect.Left + 1, boxRect.Top + 1, boxRect.Width - 1, boxRect.Height - 1));
oPen = new Pen(Color.FromArgb(nAlpha, oNode.GetExpandBoxBorderColor()), 1);
oGraphics.DrawLine(oPen, boxRect.Left + 1, boxRect.Bottom, boxRect.Right - 1, boxRect.Bottom);
oGraphics.DrawLine(oPen, boxRect.Right, boxRect.Top + 1, boxRect.Right, boxRect.Bottom - 1);
oPen.Color = Color.FromArgb(128, oPen.Color);
oGraphics.DrawLine(oPen, boxRect.Left + 1, boxRect.Top, boxRect.Right - 1, boxRect.Top);
oGraphics.DrawLine(oPen, boxRect.Left, boxRect.Top + 1, boxRect.Left, boxRect.Bottom - 1);
}
else
{
oPen = new Pen(Color.FromArgb(nAlpha, oNode.GetExpandBoxBorderColor()), 1);
oGraphics.DrawRectangle(oPen, boxRect);
if (oNode.GetExpandBoxShape() == ExpandBoxShape.Flat)
{
SolidBrush oBrush = new SolidBrush(oNode.GetExpandBoxBackColor());
oGraphics.FillRectangle(oBrush, new Rectangle(boxRect.Left + 1, boxRect.Top + 1, boxRect.Width - 1, boxRect.Height - 1));
}
}
oPen.Color = Color.FromArgb(nAlpha, oNode.GetExpandBoxForeColor());
oGraphics.DrawLine(oPen, nX - 8, nY + 7, nX - 6, nY + 7);
oPen.Dispose();
}
}
else
{
// draw the dot in the box
Pen oPen = null;
if (oNode.Flash == true)
nAlpha = 255;
Rectangle boxRect = new Rectangle(rect.Left + 1, rect.Top + 1, rect.Width - 2, rect.Height - 2);
// if XP line style, then fade the box and paint in black the inner part
if (oNode.GetExpandBoxShape() == ExpandBoxShape.XP)
{
LinearGradientBrush oBrush = new LinearGradientBrush
(
new Rectangle(boxRect.Left, boxRect.Top, boxRect.Width, boxRect.Height),
Color.White,
oNode.GetExpandBoxBackColor(),
LinearGradientMode.Vertical
);
oGraphics.FillRectangle(oBrush, new Rectangle(boxRect.Left + 1, boxRect.Top + 1, boxRect.Width - 1, boxRect.Height - 1));
oPen = new Pen(Color.FromArgb(nAlpha, oNode.GetExpandBoxBorderColor()), 1);
oGraphics.DrawLine(oPen, boxRect.Left + 1, boxRect.Bottom, boxRect.Right - 1, boxRect.Bottom);
oGraphics.DrawLine(oPen, boxRect.Right, boxRect.Top + 1, boxRect.Right, boxRect.Bottom - 1);
oPen.Color = Color.FromArgb(128, oPen.Color);
oGraphics.DrawLine(oPen, boxRect.Left + 1, boxRect.Top, boxRect.Right - 1, boxRect.Top);
oGraphics.DrawLine(oPen, boxRect.Left, boxRect.Top + 1, boxRect.Left, boxRect.Bottom - 1);
}
else
{
oPen = new Pen(Color.FromArgb(nAlpha, oNode.GetExpandBoxBorderColor()), 1);
oGraphics.DrawRectangle(oPen, boxRect);
if (oNode.GetExpandBoxShape() == ExpandBoxShape.Flat)
{
SolidBrush oBrush = new SolidBrush(oNode.GetExpandBoxBackColor());
oGraphics.FillRectangle(oBrush, new Rectangle(boxRect.Left + 1, boxRect.Top + 1, boxRect.Width - 1, boxRect.Height - 1));
}
}
oPen.Color = Color.FromArgb(nAlpha, oNode.GetExpandBoxForeColor());
oGraphics.DrawLine(oPen, nX - 7, nY + 7, nX - 7, nY + 8);
oPen.Dispose();
}
}
// now mask the rect into the rect holders. it is being used by the mouse handler to change statuses
try{m_mapRectToItemBox.Add(rect, oNode);}catch{}
try{m_mapItemBoxToRect.Add(oNode, rect);}catch{}
}