private int _delayTime = 100; //延时时间。
public void DragOver(DropInfo info)
{
_mouseOn = true;
if (!_accepted)
{
SplitScreenPanel ssp = info.Target as SplitScreenPanel;
//延时拖动接收。
if (Environment.TickCount - _startTick < _delayTime)
{
return;
}
List <string> ids = info.Data as List <string>;
if (ids == null)
{
info.Effects = DragDropEffects.None;
return;
}
SplitAdorner = CreateAdorner(ssp);
//启动动画。
Storyboard sb = CreateStoryboard(1);
sb.Begin(SplitAdorner, true);
_accepted = true;
}
}
private void playMultiVideos(SplitScreenPanel panel, int split, IEnumerable <dynamic> videos)
{
List <SplitScreenNode> nodes = new List <SplitScreenNode>();
foreach (var one in videos)
{
SplitScreenNode node = new SplitScreenNode()
{
VideoId = one.VideoId,
Row = one.Row,
Column = one.Column,
RowSpan = one.RowSpan,
ColumnSpan = one.ColumnSpan
};
nodes.Add(node);
}
if (nodes.Count > 0)
{
SplitScreenInfo ssi = new SplitScreenInfo()
{
Split = split,
Nodes = nodes.ToArray()
};
panel.ViewModel.SplitScreenData = ssi;
}
}
private void SetRectTransform(SplitScreenPanel focusPanel, float anchorMinX, float anchorMinY, float anchorMaxX, float anchorMaxY)
{
focusPanel.anchorMin.x = anchorMinX; focusPanel.anchorMin.y = anchorMinY;
focusPanel.anchorMax.x = anchorMaxX; focusPanel.anchorMax.y = anchorMaxY;
focusPanel.rectTransform.anchorMin = focusPanel.anchorMin;
focusPanel.rectTransform.anchorMax = focusPanel.anchorMax;
focusPanel.rectTransform.offsetMin = focusPanel.offsetMin;
focusPanel.rectTransform.offsetMax = -focusPanel.offsetMax;
}
private void onClearAll()
{
SplitScreenPanel panel = FindSplitScreen();
if (panel != null)
{
panel.StopAll();
}
}
private void onPlayVideo(string videoId)
{
SplitScreenPanel panel = FindSplitScreen();
if (panel != null)
{
panel.PlayVideoOnBlank(videoId);
}
}
private SplitScreenPanel createSplitPanel()
{
SplitScreenPanel ssp = new SplitScreenPanel();
SplitScreenModel model = new SplitScreenModel(false)
{
CanItemClose = false
};
ssp.DataContext = model;
return(ssp);
}
public void SetSplitScreen(SplitScreenPanel panel)
{
if (panel != null && !defaultSplitPanel.Disposed)
{
defaultSplitPanel.Dispose();
}
borderSplitPanel.Child = panel;
if (panel != null)
{
this.ViewModel.SplitScreenModel = panel.ViewModel;
}
}
//仅限于交换同级panel的位置。
private bool Exchange(FrameworkElement srcFe, FrameworkElement tarFe)
{
if (IsBrothers(srcFe, tarFe))
{
int rowT = Grid.GetRow(tarFe);
int colT = Grid.GetColumn(tarFe);
int rowSpanT = Grid.GetRowSpan(tarFe);
int colSpanT = Grid.GetColumnSpan(tarFe);
int rowS = Grid.GetRow(srcFe);
int colS = Grid.GetColumn(srcFe);
int rowSpanS = Grid.GetRowSpan(srcFe);
int colSpanS = Grid.GetColumnSpan(srcFe);
Grid.SetRow(tarFe, rowS);
Grid.SetColumn(tarFe, colS);
Grid.SetRowSpan(tarFe, rowSpanS);
Grid.SetColumnSpan(tarFe, colSpanS);
Grid.SetRow(srcFe, rowT);
Grid.SetColumn(srcFe, colT);
Grid.SetRowSpan(srcFe, rowSpanT);
Grid.SetColumnSpan(srcFe, colSpanT);
//更改顺序。
Panel parent = tarFe.Parent as Panel;
int index1 = parent.Children.IndexOf(srcFe);
int index2 = parent.Children.IndexOf(tarFe);
SplitScreenPanel ssp = parent.FindVisualParent <SplitScreenPanel>();
if (ssp.ViewModel != null)
{
//自动保存中数据项交换
var ssd = ssp.ViewModel.SplitScreenData;
var first = ssd.Nodes[index1];
ssd.Nodes[index1] = ssd.Nodes[index2];
ssd.Nodes[index2] = first;
ssp.ViewModel.SplitScreenData = ssd;
}
int min = Math.Min(index1, index2);
int max = Math.Max(index1, index2);
UIElement uiMin = parent.Children[min];
UIElement uiMax = parent.Children[max];
parent.Children.RemoveAt(max);
parent.Children.RemoveAt(min);
parent.Children.Insert(min, uiMax);
parent.Children.Insert(max, uiMin);
return(true);
}
return(false);
}
public void Drop(DropInfo info)
{
_mouseOn = false;
_accepted = false;
ResetAdorner();
List <string> ids = info.Data as List <string>;
if (ids != null)
{
SplitScreenPanel ssp = info.Target as SplitScreenPanel;
if (ssp != null)
{
foreach (string id in ids)
{
ssp.PlayVideoOnBlank(id);
}
}
}
}
SplitScreenAdorner CreateAdorner(SplitScreenPanel ssp)
{
SplitScreenAdorner adorner = new SplitScreenAdorner(ssp);
return(adorner);
}
private void stopMultiVideos(SplitScreenPanel panel)
{
panel.StopAll();
}