private StreamPageLabel CreateOneCompetibleLabel()
{
StreamPageLabel newLabel = new StreamPageLabel();
newLabel.Width = this.Width;
newLabel.Height = this.Height;
return(newLabel);
}
private StreamPageLabel InsertOnePageAt(int index)
{
this.InsertPage(index);
StreamPageLabel newLabel = CreateOneCompetibleLabel();
this.GetPage(index).AddChildLast(newLabel);
return(newLabel);
}
public void ResetData()
{
for (int i = this.pageCount - 1; i >= 0; --i)
{
this.RemovePageAt(i);
}
StreamPageLabel newLabel = InsertOnePageAt(0);
string content = contentStrm.GetThisPage(newLabel);
newLabel.Text = content;
contentStrm.UpdateLocation(0, content.Length);
PrepareSurroundPage(0);
}
public void ScrollTo(int index, bool withAnimation)
{
if (index >= this.pageCount)
{
index = this.pageCount - 1;
}
else
{
if (index < 0)
{
index = 0;
}
}
// 放在这里会影响动画的效率和流畅度，后续再改
foreach (Widget w in this.GetPage(index).Children)
{
if (w is StreamPageLabel)
{
StreamPageLabel st = w as StreamPageLabel;
contentStrm.UpdateLocation(st.ContentIndex, st.ContentLenth);
PrepareSurroundPage(index);
}
}
if (withAnimation)
{
this.animationStartPos = this.panelContainer.X;
this.animationElapsedTime = 0f;
this.nextPos = -(this.Width * (float)index);
this.animation = true;
return;
}
this.pageIndex = index;
this.panelContainer.X = -(this.Width * (float)this.pageIndex);
this.animation = false;
this.SetupPageVisible();
this.UpdateSprite();
}
private void PrepareNextPage(int baseIndex)
{
if (null == contentStrm)
{
return;
}
// not the lastest page, already have next page
if (baseIndex < this.pageCount - 1)
{
return;
}
if (contentStrm.HasNext())
{
StreamPageLabel newLabel = InsertOnePageAt(baseIndex + 1);
string strcontent = contentStrm.GetNextPage(newLabel);
newLabel.Text = strcontent;
}
}
private void PreparePrevPage(int baseIndex)
{
if (null == contentStrm)
{
return;
}
if (baseIndex > 0)
{
// already have one
return;
}
if (contentStrm.HasPrev())
{
StreamPageLabel newLabel = InsertOnePageAt(baseIndex);
string strcontent = contentStrm.GetPrevPage(newLabel);
newLabel.Text = strcontent;
}
}
private StreamPageLabel CreateOneCompetibleLabel()
{
StreamPageLabel newLabel = new StreamPageLabel();
newLabel.Width = this.Width;
newLabel.Height = this.Height;
return newLabel;
}