/// <summary>
///
/// </summary>
public PageDesign()
{
InitializeComponent();
if (null == cvsPanle)
{
cvsPanle = new PCCanvas();
//b_canvas.Child = cvsPanle;
}
dr = cvsPanle.dr;
txtHide = cvsPanle.txtHide;
line_Top = cvsPanle.line_Top;
line_Left = cvsPanle.line_Left;
line_Top.Visibility = Visibility.Collapsed;
line_Left.Visibility = Visibility.Collapsed;
dr.MouseMove += dr_MouseMove;
dr.MouseLeftButtonDown += dr_MouseLeftButtonDown;
dr.MouseLeftButtonUp += dr_MouseLeftButtonUp;
dr.MouseLeftUp += dr_MouseLeftUp;
dr.ResizeChanged += dr_ResizeChanged;
dr.Visibility = Visibility.Collapsed;
cvsPanle.MouseLeftButtonUp += cvsPanle_MouseLeftButtonUp;
this.Loaded += PageDesign_Loaded;
this.SizeChanged += PageDesign_SizeChanged;
this.MouseRightButtonDown += PageDesign_MouseRightButtonDown;
}
/// <summary>
/// DesignRectangle控件鼠标左键弹起
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
void dr_MouseLeftButtonUp(object sender, MouseButtonEventArgs e)
{
DesignRectangle item = sender as DesignRectangle;
item.ReleaseMouseCapture();
mouseVerticalPosition = -1;
mouseHorizontalPosition = -1;
if (null != _CurrentDesignCtrl && !this._CurrentDesignCtrl.Equals(item.Tag as FrameworkElement))
{
item.Tag = this._CurrentDesignCtrl;
SetControlFocus(_CurrentDesignCtrl);
}
_IDesigntime.UpdateCurrentSelectedCtrl(this._CurrentDesignCtrl);
if (isMoveByDesignRectangle)
{ //-->判断当前选中的控件与
double newTop = (double)item.GetValue(Canvas.TopProperty);
double newLeft = (double)item.GetValue(Canvas.LeftProperty);
ControlModifyPropertyEventArgs ce = new ControlModifyPropertyEventArgs();
ce.DictProperty.Add("Canvas.Top", newTop);
ce.DictProperty.Add("Canvas.Left", newLeft);
ce.ControlName = string.Format("{0}", _CurrentDesignCtrl.Name);
_ControlPositionMethod(this, ce);
}
isMouseCaptured = false;
e.Handled = true;
line_Top.Visibility = System.Windows.Visibility.Collapsed;
line_Left.Visibility = System.Windows.Visibility.Collapsed;
}
/// <summary>
/// DesignRectangle控件鼠标左键按下
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
void dr_MouseLeftButtonDown(object sender, MouseButtonEventArgs e)
{
DesignRectangle item = sender as DesignRectangle;
mouseVerticalPosition = e.GetPosition(cvsPanle).Y;
mouseHorizontalPosition = e.GetPosition(cvsPanle).X;
isMouseCaptured = true;
isMoveByDesignRectangle = false;
item.CaptureMouse();
e.Handled = true;
line_Top.Visibility = System.Windows.Visibility.Visible;
line_Left.Visibility = System.Windows.Visibility.Visible;
}
/// <summary>
/// DesignRectangle控件大小更变
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
void dr_ResizeChanged(object sender, ResizeEventArgs e)
{
DesignRectangle item = sender as DesignRectangle;
if (null != _CurrentDesignCtrl)
{
_CurrentDesignCtrl.Width = item.Width;
_CurrentDesignCtrl.Height = item.Height;
//-->修改top、left的值
_CurrentDesignCtrl.SetValue(Canvas.LeftProperty, item.GetValue(Canvas.LeftProperty));
_CurrentDesignCtrl.SetValue(Canvas.TopProperty, item.GetValue(Canvas.TopProperty));
//-->通知txaml\xml修改
}
}
/// <summary>
/// DesignRectangle控件上的Auchor控件鼠标左键弹起
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
void dr_MouseLeftUp(object sender, MouseButtonEventArgs e)
{
DesignRectangle item = sender as DesignRectangle;
if (null != _CurrentDesignCtrl)
{
_CurrentDesignCtrl.Width = item.Width;
_CurrentDesignCtrl.Height = item.Height;
}
ControlModifyPropertyEventArgs ce = new ControlModifyPropertyEventArgs();
ce.DictProperty.Add("Height", dr.Height);
ce.DictProperty.Add("Width", dr.Width);
ce.ControlName = string.Format("{0}", _CurrentDesignCtrl.GetPropertyValue("Name"));// Wrapper.GetPropertyValue(_CurrentDesignCtrl, "Name"));
_ControlPositionMethod(this, ce);
}
/// <summary>
/// DesignRectangle控件移动
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
void dr_MouseMove(object sender, MouseEventArgs e)
{
DesignRectangle item = sender as DesignRectangle;
if (isMouseCaptured)
{
isMoveByDesignRectangle = true;
_maxLeft = cvsPanle.ActualWidth - item.Width;
_maxTop = cvsPanle.ActualHeight - item.Height;
var p = e.GetPosition(cvsPanle);
double deltaV = p.Y - mouseVerticalPosition;
double deltaH = p.X - mouseHorizontalPosition;
double newTop = deltaV + (double)item.GetValue(Canvas.TopProperty);
double newLeft = deltaH + (double)item.GetValue(Canvas.LeftProperty);
newLeft = newLeft > _maxLeft ? _maxLeft : (newLeft < 0 ? 0 : newLeft);
newTop = newTop > _maxTop ? _maxTop : (newTop < 0 ? 0 : newTop);
// Set new position of object.
item.SetValue(Canvas.TopProperty, newTop);
item.SetValue(Canvas.LeftProperty, newLeft);
UpdateLineTopOrLeftPoint(new Point(newLeft + item.Width, newTop));
if (null != _CurrentDesignCtrl)
{
_CurrentDesignCtrl.SetValue(Canvas.TopProperty, newTop);
_CurrentDesignCtrl.SetValue(Canvas.LeftProperty, newLeft);
_CurrentDesignCtrl.Width = item.Width;
_CurrentDesignCtrl.Height = item.Height;
//-->这里非常耗费资源。当鼠标弹起来的时候，更新会更好些。
//ControlModifyPropertyEventArgs ce = new ControlModifyPropertyEventArgs();
//ce.DictProperty.Add("Canvas.Top", newTop);
//ce.DictProperty.Add("Canvas.Left", newLeft);
//ce.DictProperty.Add("Height", dr.Height);
//ce.DictProperty.Add("Width", dr.Width);
//ce.ControlName = string.Format("{0}", Wrapper.GetPropertyValue(_CurrentDesignCtrl, "Name"));
//_ControlPositionMethod(this, ce);
}
//Update position global variables.
mouseVerticalPosition = e.GetPosition(cvsPanle).Y;
mouseHorizontalPosition = e.GetPosition(cvsPanle).X;
}
}