private void ExpandBottom(AppWidget widget)
{
int miny = m_page.SavedHeight;
foreach (var w in m_page.Widgets)
{
if (w == widget)
{
continue;
}
if (w.Top < widget.Bottom)
{
continue;
}
if (w.HInterval.Intersection(widget.HInterval).IsEmpty)
{
continue;
}
if (w.Top < miny)
{
miny = w.Top;
}
}
widget.Height = miny - widget.Top;
}
private void ExpandRight(AppWidget widget)
{
int minx = m_page.SavedWidth;
foreach (var w in m_page.Widgets)
{
if (w == widget)
{
continue;
}
if (w.Left < widget.Right)
{
continue;
}
if (w.VInterval.Intersection(widget.VInterval).IsEmpty)
{
continue;
}
if (w.Left < minx)
{
minx = w.Left;
}
}
widget.Width = minx - widget.Left;
}
private void ExpandTop(AppWidget widget)
{
int maxy = 0;
foreach (var w in m_page.Widgets)
{
if (w == widget)
{
continue;
}
if (w.Bottom > widget.Top)
{
continue;
}
if (w.HInterval.Intersection(widget.HInterval).IsEmpty)
{
continue;
}
if (w.Bottom > maxy)
{
maxy = w.Bottom;
}
}
widget.Top = maxy;
}
private void ExpandLeft(AppWidget widget)
{
int maxx = 0;
foreach (var w in m_page.Widgets)
{
if (w == widget)
{
continue;
}
if (w.Right > widget.Left)
{
continue;
}
if (w.VInterval.Intersection(widget.VInterval).IsEmpty)
{
continue;
}
if (w.Right > maxx)
{
maxx = w.Right;
}
}
widget.Left = maxx;
}
private void NegateAnchor(AppWidget widget, AnchorStyles anchor)
{
if ((widget.Anchor & anchor) != 0)
{
widget.Anchor = widget.Anchor & (~anchor);
}
else
{
widget.Anchor = widget.Anchor | anchor;
}
}
public void ChangedWidget(AppWidget widget)
{
panel1.Invalidate();
}
private void panel1_MouseDown(object sender, MouseEventArgs e)
{
if (e.Button == MouseButtons.Left)
{
bool processed = false;
if (m_selectedWidget != null)
{
var ht = m_selectedWidget.HitTest(e.Location);
processed = true;
switch (ht)
{
case HitTestResult.LeftAnchor:
NegateAnchor(m_selectedWidget, AnchorStyles.Left);
break;
case HitTestResult.RightAnchor:
NegateAnchor(m_selectedWidget, AnchorStyles.Right);
break;
case HitTestResult.TopAnchor:
NegateAnchor(m_selectedWidget, AnchorStyles.Top);
break;
case HitTestResult.BottomAnchor:
NegateAnchor(m_selectedWidget, AnchorStyles.Bottom);
break;
case HitTestResult.LeftMover:
ExpandLeft(m_selectedWidget);
break;
case HitTestResult.RightMover:
ExpandRight(m_selectedWidget);
break;
case HitTestResult.TopMover:
ExpandTop(m_selectedWidget);
break;
case HitTestResult.BottomMover:
ExpandBottom(m_selectedWidget);
break;
case HitTestResult.LeftSizer:
m_moveOrig = e.Location;
m_horMove = MoveMode.Near;
m_verMove = MoveMode.None;
break;
case HitTestResult.TopSizer:
m_moveOrig = e.Location;
m_horMove = MoveMode.None;
m_verMove = MoveMode.Near;
break;
case HitTestResult.RightSizer:
m_moveOrig = e.Location;
m_horMove = MoveMode.Far;
m_verMove = MoveMode.None;
break;
case HitTestResult.BottomSizer:
m_moveOrig = e.Location;
m_horMove = MoveMode.None;
m_verMove = MoveMode.Far;
break;
case HitTestResult.LTSizer:
m_moveOrig = e.Location;
m_horMove = MoveMode.Near;
m_verMove = MoveMode.Near;
break;
case HitTestResult.RTSizer:
m_moveOrig = e.Location;
m_horMove = MoveMode.Far;
m_verMove = MoveMode.Near;
break;
case HitTestResult.LBSizer:
m_moveOrig = e.Location;
m_horMove = MoveMode.Near;
m_verMove = MoveMode.Far;
break;
case HitTestResult.RBSizer:
m_moveOrig = e.Location;
m_horMove = MoveMode.Far;
m_verMove = MoveMode.Far;
break;
case HitTestResult.In:
m_moveOrig = e.Location;
m_horMove = MoveMode.Move;
m_verMove = MoveMode.Move;
break;
default:
processed = false;
break;
}
}
if (!processed)
{
AppWidget newsel = null;
foreach (var widget in m_page.Widgets)
{
var ht = widget.HitTest(e.Location);
if (ht != HitTestResult.Out)
{
newsel = widget;
break;
}
}
SelectedWidget = newsel;
}
}
OnClick(EventArgs.Empty);
panel1.Invalidate();
}