/*
* 加载word 文件
*
* @param DocumentViewer 显示容器
*
* @param DControl ctl 控件信息
*/
private void loadWord()
{
try
{
XpsDocument xpsDoc = new XpsDocument(wordFullPath, FileAccess.Read, CompressionOption.SuperFast);
FixedDocumentSequence fixedDocumentSequence = xpsDoc.GetFixedDocumentSequence();
DocumentPaginator documentPaginator = fixedDocumentSequence.DocumentPaginator;
size = fixedDocumentSequence.DocumentPaginator.PageSize;
for (int i = 0; i < documentPaginator.PageCount; i++)
{
DispatcherContainer dispatcherContainer = new DispatcherContainer();
dispatcherContainer.Width = size.Width;
dispatcherContainer.Height = size.Height;
dispatcherContainer.Tag = i;
contentStackPanel.Children.Add(dispatcherContainer);
CWordPageQueue cwordPageQueue = new CWordPageQueue();
pageQueueList.Add(cwordPageQueue);
}
xpsDoc.Close();
}
catch (Exception)
{
}
}
private async void RemovePageTask(int pageId, TaskInfo taskInfo)
{
DispatcherContainer target = (DispatcherContainer)contentStackPanel.Children[pageId];
Console.WriteLine("移除页面：" + pageId + "___ThreadId：" + Thread.CurrentThread.ManagedThreadId);
UIElement uiElement = target.Child;
uiElement = null;
target.SetValue(ContentPresenter.ContentProperty, null);
await target.SetChildAsync <Border>(() =>
{
Console.WriteLine("移除页面await：" + pageId + "___ThreadId：" + Thread.CurrentThread.ManagedThreadId);
return(new Border());
}
, () =>
{
Border bd = new Border();
pageQueueList[pageId].list.Remove(taskInfo);
if (pageQueueList[pageId].list.Count > 0)
{
RemovePageTask(pageId, pageQueueList[pageId].list[0]);
}
return(bd);
});
}
private async void LoadPageTask(int pageId, TaskInfo taskInfo)
{
DispatcherContainer target = (DispatcherContainer)contentStackPanel.Children[pageId];
// if (target.Child != null && target.Child is FixedPage) return;
// if (target.GetIsUpdatingChild()) return;
// Console.WriteLine("获取页面：" + pageId);
Console.WriteLine("获取页面：" + pageId + "___ThreadId：" + Thread.CurrentThread.ManagedThreadId);
//await 回调，执行下一个
await target.SetChildAsync <FixedPage>(() =>
{
FixedPage fp = new FixedPage();
try
{
XpsDocument xpsDoc = new XpsDocument(wordFullPath, FileAccess.Read);
FixedDocumentSequence fixedDocumentSequence = xpsDoc.GetFixedDocumentSequence();
foreach (DocumentReference DocRef in fixedDocumentSequence.References)
{
Console.WriteLine("获取页面await：" + pageId + "___ThreadId：" + Thread.CurrentThread.ManagedThreadId);
Console.WriteLine();
bool bForceReload = false;
FixedDocument DocFd = DocRef.GetDocument(bForceReload);
PageContent pageContent = DocFd.Pages[pageId];
fp = pageContent.GetPageRoot(false);
// pageContent.SetValue(ContentPresenter.ContentProperty, null);
//for (int i = 0; i < fixedPage.Children.Count; i++)
//{
// UIElement uiElement = fp.Children[i];
// fixedPage.Children.Remove(uiElement);
// fp.Children.Add(uiElement);
//}
}
// xpsDoc.Close();//这个地方需要注意关闭，否则的话会出现莫名其妙的错误
return(fp);
}
catch (Exception)
{
return(fp);
}
}
, () =>
{
FixedPage fp = new FixedPage();
pageQueueList[pageId].list.Remove(taskInfo);
if (pageQueueList[pageId].list.Count > 0)
{
LoadPageTask(pageId, pageQueueList[pageId].list[0]);
}
return(fp);
});
// Console.WriteLine("任务是否完成："+task.IsCompleted);
}
/// <summary>
/// Creates a NativeQueue which can be used to enqueue Event Data to be created when the DispatcherSystem runs.
/// </summary>
/// <typeparam name="T">struct, IComponentData</typeparam>
/// <returns>NativeQueue</returns>
public NativeQueue <T> CreateDispatcherQueue <T>() where T : struct, IComponentData
{
if (!_dictionary.TryGetValue(typeof(T), out var dispatcherContainer))
{
_dictionary.Add(typeof(T), dispatcherContainer = new DispatcherContainer <T>(this));
}
return(((DispatcherContainer <T>)dispatcherContainer).CreateDispatcherQueue());
}
public void AddListener <MessageType>(MonoBehaviour that, string name, MessageDispatcher.Handler <MessageType> handler)
{
Debug.Assert(null != that, "That is not null");
int id = that.GetInstanceID();
DispatcherContainer container;
if (!objects.TryGetValue(id, out container))
{
container = new DispatcherContainer();
container.instance = that;
container.dispatcher = new MessageDispatcher();
objects[id] = container;
}
container.dispatcher.AddListener(name, handler);
}
private async void CWord_ScrollChanged(object sender, ScrollChangedEventArgs e)
{
double topOffset = cWordScrollViewer.VerticalOffset;
int page = (int)Math.Floor(topOffset / size.Height);
if (page == currPage)
{
return;
}
if (page >= contentStackPanel.Children.Count)
{
return;
}
//if (page < currPage) return;
currPage = page;
//DispatcherContainer target = (DispatcherContainer)contentStackPanel.Children[this.currPage];
//await target.SetChildAsync(() =>
//{
// XpsDocument xpsDoc = new XpsDocument(wordFullPath, FileAccess.Read, CompressionOption.SuperFast);
// FixedDocumentSequence fixedDocumentSequence = xpsDoc.GetFixedDocumentSequence();
// foreach (DocumentReference DocRef in fixedDocumentSequence.References)
// {
// bool bForceReload = false;
// FixedDocument DocFd = DocRef.GetDocument(bForceReload);
// return DocFd.Pages[currPage].GetPageRoot(false);
// }
// xpsDoc.Close();//这个地方需要注意关闭，否则的话会出现莫名其妙的错误
// return null;
//});
// lock (this) {
for (int b = 0; b < contentStackPanel.Children.Count; b++)
{
DispatcherContainer ele = (DispatcherContainer)contentStackPanel.Children[b];
if (b >= currPage - 2 && b <= currPage + 1)
{
//显示前面3页，后面5页
if (ele.Child == null || ele.Child is Border)
{
//1.向队列中添加任务
int count = pageQueueList[b].list.Count;
if (count == 0)
{
TaskInfo taskInfo = new TaskInfo();
taskInfo.taskStatus = 0;
taskInfo.isLoadPage = true;
pageQueueList[b].list.Add(taskInfo);
LoadPageTask(b, taskInfo);
}
else if (count == 1)
{
TaskInfo taskInfo = new TaskInfo();
taskInfo.taskStatus = 0;
taskInfo.isLoadPage = true;
pageQueueList[b].list.Add(taskInfo);
}
else
{
TaskInfo taskInfo = new TaskInfo();
taskInfo.taskStatus = 0;
taskInfo.isLoadPage = true;
pageQueueList[b].list[1] = taskInfo;
}
}
}
else
{
if (ele.Child != null && (ele.Child is FixedPage))
{
//1.向队列中添加任务
int count2 = pageQueueList[b].list.Count;
if (count2 == 0)
{
TaskInfo taskInfo = new TaskInfo();
taskInfo.taskStatus = 0;
taskInfo.isLoadPage = false;
pageQueueList[b].list.Add(taskInfo);
RemovePageTask(b, taskInfo);
}
else if (count2 == 1)
{
TaskInfo taskInfo = new TaskInfo();
taskInfo.taskStatus = 0;
taskInfo.isLoadPage = false;
pageQueueList[b].list.Add(taskInfo);
}
else
{
TaskInfo taskInfo = new TaskInfo();
taskInfo.taskStatus = 0;
taskInfo.isLoadPage = false;
pageQueueList[b].list[1] = taskInfo;
}
//UIElement uiElement = ele.Child;
//uiElement = null;
//ele.SetValue(ContentPresenter.ContentProperty, null);
////没有断开父元素与子元素链接
//ele.SetChildAsync(() =>
//{
// return new Border();
//});
}
}
}
//}
}
