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Update PlotWatchControl.xaml.cs #36

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69 changes: 12 additions & 57 deletions Visual_Studio_2017/GraphicalDebugging/PlotWatchControl.xaml.cs
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Original file line number Diff line number Diff line change
Expand Up @@ -428,68 +428,23 @@ private void imageGrid_MouseMove(object sender, System.Windows.Input.MouseEventA
{
if (m_pointDown[0] != point.X || m_pointDown[1] != point.Y)
{
double ox = m_pointDown[0];
double oy = m_pointDown[1];
double originx = m_pointDown[0];
double originy = m_pointDown[1];
double x = Math.Min(Math.Max(point.X, 0), image.ActualWidth);
double y = Math.Min(Math.Max(point.Y, 0), image.ActualHeight);
double w = Math.Abs(x - ox);
double h = Math.Abs(y - oy);
double width = Math.Abs(x - originx);
double height = Math.Abs(y - originy);

double prop = h / w;
double iProp = image.ActualHeight / image.ActualWidth;
if (prop < iProp)
h = iProp * w;
else if (prop > iProp)
w = h / iProp;
if (originx > x) { originx -= width; }
if (originy > y) { originy -= height; }

double l = ox;
double t = oy;
Canvas.SetLeft(m_selectionRect, originx);
m_selectionRect.Width = width;
Canvas.SetTop(m_selectionRect, originy);
m_selectionRect.Height = height;

if (ox <= x)
{
if (ox + w > image.ActualWidth)
{
w = image.ActualWidth - ox;
h = iProp * w;
}
}
else
{
if (ox - w < 0)
{
w = ox;
h = iProp * w;
}
l = ox - w;
}

if (oy <= y)
{
if (oy + h > image.ActualHeight)
{
h = image.ActualHeight - oy;
w = h / iProp;
}
}
else
{
if (oy - h < 0)
{
h = oy;
w = h / iProp;
}
t = oy - h;
}
m_selectionRect.Visibility = Visibility.Visible;

if (w > 0 && h > 0)
{
Canvas.SetLeft(m_selectionRect, l);
Canvas.SetTop(m_selectionRect, t);
m_selectionRect.Width = w;
m_selectionRect.Height = h;

m_selectionRect.Visibility = Visibility.Visible;
}
}
}
}
Expand Down Expand Up @@ -568,4 +523,4 @@ private void colorTextBlock_MouseDown(object sender, System.Windows.Input.MouseB
}
}
}
}
}