Пример #1
0
        /// <summary>
        /// Sets the position of the given caption on a grid.
        /// </summary>
        /// <param name="t">The caption texblock to set the position of.</param>
        private void SetCaptionPosition(CaptionTextBlock t)
        {
            GridLocation l = GridLocation.GetGridLocation(t.Caption.Location);

            Grid.SetRow(t, l.Row);
            Grid.SetRowSpan(t, l.RowSpan);
            Grid.SetColumn(t, l.Column);
            Grid.SetColumnSpan(t, l.ColumnSpan);
        }
Пример #2
0
        /// <summary>
        /// Adds an emotive caption to this MediaControl.
        /// </summary>
        /// <param name="c">The Caption to add.</param>
        public void AddCaption(Caption c)
        {
            //Create a new CaptionTextBlock with a unique name in the form "ItemXX"
            CaptionTextBlock t = new CaptionTextBlock(c, "Item" + CaptionGrid.Children.Count);

            int captionIndex = CaptionGrid.Children.Add(t);

            SetCaptionPosition(t);

            //Give the control a name so that it can be used by the storyboard.
            this.RegisterName(t.Name, t);

            //Create animation for visibility
            ObjectAnimationUsingKeyFrames visibilityAnimation = new ObjectAnimationUsingKeyFrames
            {
                Duration  = TimeSpan.FromSeconds(c.Duration),
                BeginTime = TimeSpan.FromSeconds(c.Begin),
            };

            //Set visibility keyframes
            visibilityAnimation.KeyFrames.Add(new DiscreteObjectKeyFrame(Visibility.Visible, KeyTime.FromPercent(0)));
            visibilityAnimation.KeyFrames.Add(new DiscreteObjectKeyFrame(Visibility.Collapsed, KeyTime.FromPercent(1)));

            //Bind animation to property
            Storyboard.SetTargetName(visibilityAnimation, t.Name);
            Storyboard.SetTargetProperty(visibilityAnimation, new PropertyPath(TextBlock.VisibilityProperty));

            Storyboard.Children.Add(visibilityAnimation);

            foreach (CaptionWord w in c.Words)
            {
                //Skip words with no emotion in them
                if (w.Emotion == Emotion.None || w.Emotion == Emotion.Unknown)
                {
                    continue;
                }

                WordAnimation a = WordAnimationFactory.CreateWordAnimation(w, t);

                a.AddToMediaPlayer(Storyboard, t);
            }
        }