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noisedestroyers
2026-04-17 14:55:32 -04:00
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DataPRO/Modules/PreviousDBVersions/Version57/DatabaseExport/.svn/pristine/1d/1d164c0134b45f08243bf8cc03f0ad7c55929a47.svn-base Normal file
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using System;
using System.Windows;
using System.Windows.Controls;
using System.Windows.Documents;
using System.Windows.Input;
using System.Windows.Media;
using System.Windows.Shapes;
namespace DatabaseExport
{
public class RegionAdorner : Adorner
{
public Point GetUpperLeft()
{
var p = SelectRect.TopLeft;
var i = AdornedElement as Image;
var s = new Size(i.Source.Width, i.Source.Height);
var difX = (s.Width - _MeasuredSize.Width);
var difY = s.Height - _MeasuredSize.Height;
var scaleX = difX / _MeasuredSize.Width;
var scaleY = difY / _MeasuredSize.Height;
p = new Point(p.X + p.X * scaleX, p.Y + p.Y * scaleY);
return p;
}
public Point GetLowerRight()
{
var p = SelectRect.BottomRight;
var i = AdornedElement as Image;
if (null == i.Source) { return new Point(0, 0); }
var s = new Size(i.Source.Width, i.Source.Height);
var difX = (s.Width - _MeasuredSize.Width);
var difY = s.Height - _MeasuredSize.Height;
var scaleX = difX / _MeasuredSize.Width;
var scaleY = difY / _MeasuredSize.Height;
p = new Point(p.X + p.X * scaleX, p.Y + p.Y * scaleY);
return p;
}
public delegate void RegionSelectedHandler(RegionAdorner r, MouseButtonEventArgs e);
public event RegionSelectedHandler OnRegionSelected;
private bool _bNew = true;
public bool IsNew
{
get => _bNew;
set
{
_bNew = value;
if (_bNew)
{
MyRegion.RegionAddVisibility = Visibility.Visible;
MyRegion.RegionDeleteVisibility = Visibility.Hidden;
}
else
{
MyRegion.RegionDeleteVisibility = Visibility.Visible;
MyRegion.RegionAddVisibility = Visibility.Hidden;
}
}
}
private Point __anchorPoint;
public Point AnchorPoint
{
get => __anchorPoint;
set => __anchorPoint = value;
}
private UIElement _adornedElement;
private Path _path;
private Rect __selectRect;
public Rect SelectRect
{
get => __selectRect;
set
{
__selectRect = value;
MyRegion.RegionUpperLeft = GetUpperLeft();
MyRegion.RegionBottomRight = GetLowerRight();
}
}
private RectangleGeometry _geometry;
private Region _region;
public Region MyRegion
{
get => _region;
set => _region = value;
}
public RegionAdorner(UIElement adornedElement, TestObjectTemplate template, Contexts context)
: base(adornedElement)
{
_region = new Region(this, template);
_adornedElement = adornedElement;
SelectRect = new Rect();
_geometry = new RectangleGeometry();
_path = new Path();
_path.Data = _geometry;
_path.StrokeThickness = 5;
_path.Stroke = Brushes.AliceBlue;
_path.Opacity = .6;
_path.Visibility = Visibility.Hidden;
MouseLeftButtonUp += new MouseButtonEventHandler(Region_MouseLeftButtonUp);
MouseMove += new MouseEventHandler(Region_MouseMove);
MouseLeftButtonDown += new MouseButtonEventHandler(Region_MouseLeftButtonDown);
_MeasuredSize = adornedElement.RenderSize;
//_region.PropertyChanged += new PropertyChangedEventHandler(_region_PropertyChanged);
Context = context;
}
void Region_MouseLeftButtonUp(object sender, MouseButtonEventArgs e)
{
EndSelection(sender, e);
}
public enum Contexts { EditTestObject, EditTestObjectTemplate };
private Contexts _context;
public Contexts Context
{
get => _context;
set => _context = value;
}
void Region_MouseLeftButtonDown(object sender, MouseButtonEventArgs e)
{
if (null != OnRegionSelected) { OnRegionSelected(this, e); }
}
private Size __MeasuredSize;
private Size _MeasuredSize
{
get => __MeasuredSize;
set => __MeasuredSize = value;
}
private Point p1;
public void Region_MouseMove(object sender, MouseEventArgs e)
{
if (e.LeftButton == MouseButtonState.Pressed)
{
if (IsNew) { DrawSelection(sender, e, _adornedElement); }
else { MoveSelection(sender, e, _adornedElement); }
var layer = AdornerLayer.GetAdornerLayer(_adornedElement);
InvalidateVisual();
layer.InvalidateVisual();
}
}
public void DrawSelection(object sender, MouseEventArgs e, UIElement adornedElement)
{
if (e.LeftButton == MouseButtonState.Pressed)
{
var mousePosition = e.GetPosition(adornedElement);
var r = SelectRect;
if (mousePosition.X < AnchorPoint.X) { r.X = mousePosition.X; }
else { r.X = AnchorPoint.X; }
if (mousePosition.Y < AnchorPoint.Y) { r.Y = mousePosition.Y; }
else { r.Y = AnchorPoint.Y; }
r.Width = Math.Abs(mousePosition.X - AnchorPoint.X);
r.Height = Math.Abs(mousePosition.Y - AnchorPoint.Y);
SelectRect = r;
_geometry.Rect = SelectRect;
}
}
public void MoveSelection(object sender, MouseEventArgs e, UIElement adornedElement)
{
if (e.LeftButton == MouseButtonState.Pressed)
{
var mousePosition = e.GetPosition(adornedElement);
var r = SelectRect;
r.X -= /*p1.X -*/ (p1.X - mousePosition.X);
r.Y -= /*p1.Y -*/(p1.Y - mousePosition.Y);
SelectRect = r;
p1 = mousePosition;
_geometry.Rect = SelectRect;
}
}
public delegate void EndSelectionHandler(RegionAdorner r);
public event EndSelectionHandler OnEndSelection;
public void EndSelection(object sender, MouseButtonEventArgs e)
{
ReleaseMouseCapture();
if (null != OnEndSelection) { OnEndSelection(this); }
}
}
}