protected override void OnMouseMove(MouseEventArgs e)
{
int width = m_swatchOuterRegionWidth - (2 * OUTER_PADDING);
int height = m_swatchOuterRegionHeight - (2 * OUTER_PADDING);
int x = e.X - OUTER_PADDING;
int y = e.Y - OUTER_PADDING;
Rectangle r = new Rectangle(m_startX, m_startY, width, height);
Rectangle c = new Rectangle(e.X, e.Y, 1, 1);
if (c.IntersectsWith(r))
{
int swatchColumnIndex = (x / (SWATCH_WIDTH + PADDING));
int swatchRowIndex = (y / (SWATCH_HEIGHT + PADDING));
ColorSwatch potentialSwatch = m_swatchArray[swatchColumnIndex, swatchRowIndex];
Rectangle potentialSwatchRectangle = new Rectangle(potentialSwatch.Location, potentialSwatch.Size);
Point cursorPoint = new Point(e.X, e.Y);
Rectangle cursorRectangle = new Rectangle(cursorPoint, new Size(1, 1));
if (cursorRectangle.IntersectsWith(potentialSwatchRectangle))
{
// hides the tooltip when moving from swatch to swatch.
if (!m_lastSwatch.Equals(potentialSwatch))
{
this.colorTip.Active = false;
}
if (!potentialSwatch.Description.Equals(colorTip.GetToolTip(this)))
{
this.colorTip.SetToolTip(this, potentialSwatch.Description);
}
this.colorTip.Active = true;
m_lastSwatch = potentialSwatch;
this.Cursor = Cursors.Hand;
}
else
{
this.Cursor = Cursors.Default;
this.colorTip.SetToolTip(this, "");
this.colorTip.Active = false;
}
}
}
