private void AutoCheck()
{
lock (_checkLock)
{
if (_storyboard != null)
{
switch (QueueStrategy)
{
case QueueStrategy.None:
_storyboard.Completed -= Storyboard_Completed;
_storyboard.Stop();
break;
default:
return;
}
}
if (Dequeue(out string text))
{
_textBlock.Text = text;
MeasureText(text);
}
else if (!AutoRepeat)
{
return;
}
_storyboard = CreateStoryboard();
_storyboard.Completed += Storyboard_Completed;
_textBlock.BeginStoryboard(_storyboard);
}
}
private void TextBlock_TargetUpdated(object sender, DataTransferEventArgs e)
{
TextBlock block = (TextBlock)e.Source;
if (block.Text.Length > 1)
{
Storyboard newBoard = new Storyboard();
newBoard.FillBehavior = FillBehavior.Stop;
newBoard.Duration = TimeSpan.FromSeconds(1);
int effectCount = block.TextEffects.Count;
int textLength = block.Text.Length;
double letterPercent = 1.0 / (textLength + effectCount);
for (int i = 0; i < effectCount; ++i)
{
Int32AnimationUsingKeyFrames positionCount = new Int32AnimationUsingKeyFrames();
positionCount.BeginTime = TimeSpan.Zero;
Storyboard.SetTargetProperty(positionCount, new PropertyPath(string.Format("(TextElement.TextEffects)[{0}].(TextEffect.PositionCount)", i)));
if (i > 0)
{
KeyTime startKeyTime = KeyTime.FromPercent((i - 1) * letterPercent);
positionCount.KeyFrames.Add(new DiscreteInt32KeyFrame(0, startKeyTime));
}
KeyTime moveCountKeyTime = KeyTime.FromPercent(i * letterPercent);
positionCount.KeyFrames.Add(new DiscreteInt32KeyFrame(1, moveCountKeyTime));
KeyTime endCountKeyTime = KeyTime.FromPercent((textLength + i) * letterPercent);
positionCount.KeyFrames.Add(new DiscreteInt32KeyFrame(0, endCountKeyTime));
newBoard.Children.Add(positionCount);
Int32AnimationUsingKeyFrames positionStart = new Int32AnimationUsingKeyFrames();
positionStart.BeginTime = TimeSpan.Zero;
Storyboard.SetTargetProperty(positionStart, new PropertyPath(string.Format("(TextElement.TextEffects)[{0}].(TextEffect.PositionStart)", i)));
for (int j = 0; j < textLength; ++j)
{
KeyTime nextStartTime = KeyTime.FromPercent((j + i) * letterPercent);
DiscreteInt32KeyFrame nextFrame = new DiscreteInt32KeyFrame(j, nextStartTime);
positionStart.KeyFrames.Add(nextFrame);
}
newBoard.Children.Add(positionStart);
}
block.BeginStoryboard(newBoard, HandoffBehavior.SnapshotAndReplace, false);
}
}
private void AddMessage(string text)
{
if (messageTextBlocks.Count <TextBlock>(t => t.Opacity == 0.0) == messageTextBlocks.Count)
{
messageTextBlocks.Clear();
MessageContainerGrid.Children.Clear();
}
TextBlock tb;
tb = new TextBlock();
tb.Style = (Style)App.Current.Resources["MessageTextBlock"];
tb.Margin = new Thickness(0, 0, 20, 20 + (messageTextBlocks.Count * 50));
tb.Text = text;
MessageContainerGrid.Children.Add(tb);
messageTextBlocks.Add(tb);
tb.BeginStoryboard((Storyboard)App.Current.Resources["FadeOut"]);
return;
}
