private void ResetHorizontalScrollbar()
{
BoxArrowDiagram d = this.GetFlowDiagram();
float zoom = d.Zoom;
float diagwid = d.WorkspaceRectangle.Width * zoom;
float clientwid = d.ClientSize.Width;
int Extra = Convert.ToInt32(30 * zoom);
if (clientwid >= diagwid)
{
this.ScrollBarHorizontal.Enabled = false;
this.ScrollBarHorizontal.Value = 0;
d.HorizontalScrollValue = 0;
}
else
{
this.ScrollBarHorizontal.Enabled = true;
this.ScrollBarHorizontal.Minimum = 0;
this.ScrollBarHorizontal.Maximum = Convert.ToInt32(diagwid - clientwid + Extra);
this.ScrollBarHorizontal.SmallChange = Convert.ToInt32(d.CellSize * zoom);
this.ScrollBarHorizontal.LargeChange = Convert.ToInt32(d.CellSize * zoom);
if (this.ScrollBarHorizontal.SmallChange == 0)
{
this.ScrollBarHorizontal.SmallChange = 1;
}
if (this.ScrollBarHorizontal.LargeChange == 0)
{
this.ScrollBarHorizontal.LargeChange = 1;
}
this.ScrollBarHorizontal.Maximum += Convert.ToInt32(this.ScrollBarHorizontal.LargeChange);
if (d.HorizontalScrollValue <= ScrollBarHorizontal.Maximum)
{
d.HorizontalScrollValue = d.HorizontalScrollValue;
}
}
}
private void ResetVerticalScrollbar()
{
BoxArrowDiagram d = this.GetFlowDiagram();
float zoom = d.Zoom;
float diaghgt = d.WorkspaceRectangle.Height * zoom;
float clienthgt = d.ClientSize.Height;
int Extra = Convert.ToInt32(30 * zoom);
if (clienthgt >= diaghgt)
{
this.ScrollBarVertical.Enabled = false;
this.ScrollBarVertical.Value = 0;
d.VerticalScrollValue = 0;
}
else
{
this.ScrollBarVertical.Enabled = true;
this.ScrollBarVertical.Minimum = 0;
this.ScrollBarVertical.Maximum = Convert.ToInt32(diaghgt - clienthgt + Extra);
this.ScrollBarVertical.SmallChange = Convert.ToInt32(d.CellSize * zoom);
this.ScrollBarVertical.LargeChange = Convert.ToInt32(d.CellSize * zoom);
if (this.ScrollBarVertical.SmallChange == 0)
{
this.ScrollBarVertical.SmallChange = 1;
}
if (this.ScrollBarVertical.LargeChange == 0)
{
this.ScrollBarVertical.LargeChange = 1;
}
this.ScrollBarVertical.Maximum += Convert.ToInt32(this.ScrollBarVertical.LargeChange);
if (d.VerticalScrollValue <= ScrollBarVertical.Maximum)
{
d.VerticalScrollValue = d.VerticalScrollValue;
}
}
}
