//step:
//0 初始
//1 按下左键开始拖动
//2 完成选择的拖动,确认选择,再次按下左键开始拖动,若按下右键取消选择从0开始
//3 拖动开始,光标改为箭头,释放左键完成拖动
public override void MouseLeftButtonDown(object sender, Point point)
{
if (Step == 0)
{
//Point p = e.GetPosition(CMain);
RectangleGeometry rect = new RectangleGeometry();
rect.Rect = new Rect(point, point);
//p1 = p;
Path path = CreatePath();
path.Tag = point;
path.Data = rect;
path.StrokeThickness = 0.8;
path.StrokeDashArray = new DoubleCollection()
{
5, 5
};
CMain.Children.Add(path);
Step = 1;
selectedPathes.Clear();
}
else if (Step == 1)
{
if (CMain.Children.Count > CommonParam._defaultCount + 1)
{
Rect selected = Next(point);
//MyCapture.Points.Add(rect.BottomLeft);
//MyCapture.Points.Add(rect.BottomRight);
//MyCapture.Points.Add(rect.TopLeft);
//MyCapture.Points.Add(rect.TopRight);
for (int i = CommonParam._defaultCount; i < CMain.Children.Count - 1; i++)
{
var temp = CMain.Children[i];
if (temp is Path)
{
Path path = temp as Path;
path.Stroke = Brushes.White;
if (path != null)
{
if (path.Data is LineGeometry)
{
LineGeometry line = path.Data as LineGeometry;
bool p1 = CommonFun.IsPointIn(selected, line.StartPoint);
bool p2 = CommonFun.IsPointIn(selected, line.EndPoint);
if (p1 && p2)
{
path.Stroke = Brushes.LightBlue;
selectedPathes.Add(path);
}
}
else if (path.Data is RectangleGeometry)
{
RectangleGeometry rect = path.Data as RectangleGeometry;
bool p1 = CommonFun.IsPointIn(selected, rect.Rect.BottomLeft);
bool p2 = CommonFun.IsPointIn(selected, rect.Rect.BottomRight);
bool p3 = CommonFun.IsPointIn(selected, rect.Rect.TopLeft);
bool p4 = CommonFun.IsPointIn(selected, rect.Rect.TopRight);
if (p1 && p2 && p3 && p4)
{
path.Stroke = Brushes.LightBlue;
selectedPathes.Add(path);
}
}
else if (path.Data is EllipseGeometry)
{
EllipseGeometry ellipse = path.Data as EllipseGeometry;
bool p1 = CommonFun.IsPointIn(selected, new Point(ellipse.Center.X - ellipse.RadiusX, ellipse.Center.Y));
bool p2 = CommonFun.IsPointIn(selected, new Point(ellipse.Center.X + ellipse.RadiusX, ellipse.Center.Y));
bool p3 = CommonFun.IsPointIn(selected, new Point(ellipse.Center.X, ellipse.Center.Y + ellipse.RadiusY));
bool p4 = CommonFun.IsPointIn(selected, new Point(ellipse.Center.X, ellipse.Center.Y + ellipse.RadiusY));
if (p1 && p2 && p3 && p4)
{
path.Stroke = Brushes.LightBlue;
selectedPathes.Add(path);
}
}
}
}
}
}
CMain.Children.RemoveAt(CMain.Children.Count - 1);
if (selectedPathes.Count > 0)
{
Step = 2;
}
else
{
Step = 0;
}
}
else if (Step == 2)
{
pm1 = point;
CMain.Cursor = Cursors.Arrow;
Step = 3;
}
}
protected Point AddSelected(Point point)
{
Rect selected = Next(point);
//MyCapture.Points.Add(rect.BottomLeft);
//MyCapture.Points.Add(rect.BottomRight);
//MyCapture.Points.Add(rect.TopLeft);
//MyCapture.Points.Add(rect.TopRight);
for (int i = CommonParam._defaultCount; i < CMain.Children.Count - 1; i++)
{
var temp = CMain.Children[i];
if (temp is Path)
{
Path path = temp as Path;
path.Stroke = Brushes.White;
if (path != null)
{
if (path.Data is LineGeometry)
{
LineGeometry line = path.Data as LineGeometry;
bool p1 = CommonFun.IsPointIn(selected, line.StartPoint);
bool p2 = CommonFun.IsPointIn(selected, line.EndPoint);
if (p1 && p2)
{
path.Stroke = Brushes.LightBlue;
selectedPathes.Add(path);
}
}
else if (path.Data is RectangleGeometry)
{
RectangleGeometry rect = path.Data as RectangleGeometry;
bool p1 = CommonFun.IsPointIn(selected, rect.Rect.BottomLeft);
bool p2 = CommonFun.IsPointIn(selected, rect.Rect.BottomRight);
bool p3 = CommonFun.IsPointIn(selected, rect.Rect.TopLeft);
bool p4 = CommonFun.IsPointIn(selected, rect.Rect.TopRight);
if (p1 && p2 && p3 && p4)
{
path.Stroke = Brushes.LightBlue;
selectedPathes.Add(path);
}
}
else if (path.Data is EllipseGeometry)
{
EllipseGeometry ellipse = path.Data as EllipseGeometry;
bool p1 = CommonFun.IsPointIn(selected, new Point(ellipse.Center.X - ellipse.RadiusX, ellipse.Center.Y));
bool p2 = CommonFun.IsPointIn(selected, new Point(ellipse.Center.X + ellipse.RadiusX, ellipse.Center.Y));
bool p3 = CommonFun.IsPointIn(selected, new Point(ellipse.Center.X, ellipse.Center.Y + ellipse.RadiusY));
bool p4 = CommonFun.IsPointIn(selected, new Point(ellipse.Center.X, ellipse.Center.Y + ellipse.RadiusY));
if (p1 && p2 && p3 && p4)
{
path.Stroke = Brushes.LightBlue;
selectedPathes.Add(path);
}
}
}
}
else if (temp is TextBlock)
{
TextBlock edit = temp as TextBlock;
double x = Canvas.GetLeft(edit);
double y = Canvas.GetTop(edit);
bool p1 = CommonFun.IsPointIn(selected, new Point(x, y));
bool p2 = CommonFun.IsPointIn(selected, new Point(x + edit.ActualWidth, y + edit.ActualHeight));
if (p1 && p2)
{
edit.Foreground = Brushes.LightBlue;
selectedPathes.Add(edit);
}
}
}
return(point);
}
