private void ScrollToItem(TranscriptionElement elm)
{
if (_scrollViewer == null)
return;
listbox.SelectedItem = elm;
listbox.ScrollIntoView(listbox.Items[listbox.SelectedIndex]);
if (elm == Transcription.Last())
{
_scrollViewer.ScrollToBottom();
}
else
{
var all = listbox.VisualFindChildren<Element>();
var visible = all.Where(itm => listbox.VisualIsVisibleChild(itm));
Action scroll = new Action(() =>
{
all = listbox.VisualFindChildren<Element>();
visible = all.Where(itm => listbox.VisualIsVisibleChild(itm));
var element = all.First(itm => itm.ValueElement == elm);
var position = element.TransformToAncestor(_scrollViewer).Transform(new Point(0, element.ActualHeight));
_scrollViewer.ScrollToVerticalOffset(position.Y);
_scrollViewer.UpdateLayout();
});
if (visible.Any(itm => itm.ValueElement == elm))
_scrollViewer.Dispatcher.BeginInvoke(DispatcherPriority.Loaded, scroll);
}
}
void l_MergeWithnextRequest(object sender, EventArgs e)
{
Element el = (Element)sender;
TranscriptionElement t = el.ValueElement;
TranscriptionElement n = el.ValueElement.Next();
t.Parent.BeginUpdate();
int len = t.Text.Length;
if (t is TranscriptionParagraph && n is TranscriptionParagraph)
{
t.End = n.End;
n.Children.ForEach(x => t.Children.Add(x));
n.Parent.Remove(n);
}
FixPosSetFor(t);
t.Parent.EndUpdate();
ActiveTransctiption = t;
this.Dispatcher.Invoke(() =>
{
FixPosTryRestore();
SetCaretIn(t, len);
}, DispatcherPriority.Background);
}
void l_MergeWithPreviousRequest(object sender, EventArgs e)
{
Element el = (Element)sender;
TranscriptionElement t = el.ValueElement;
TranscriptionElement p = el.ValueElement.Previous();
var parent = t.Parent;
parent.BeginUpdate();
int len = p.Text.Length;
if (t is TranscriptionParagraph && p is TranscriptionParagraph)
{
if (!(t.Children.Count == 1 && string.IsNullOrEmpty(t.Children[0].Text)))
{
p.End = t.End;
t.Children.ForEach(x => p.Children.Add(x));
}
parent.Remove(t);
}
FixPosSetFor(p);
parent.EndUpdate();
ActiveTransctiption = p.Previous();
this.Dispatcher.Invoke(() =>
{
FixPosTryRestore();
SetCaretIn(p, len);
}, DispatcherPriority.Background);
}
private void SetCaretIn(TranscriptionElement elm, int position)
{
if (ActiveTransctiption != elm)
ActiveTransctiption = elm;
listbox.ScrollIntoView(elm);
var n = listbox.ItemContainerGenerator.ContainerFromItem(elm).VisualFindChild<Element>();
if (!n.IsFocused)
n.Focus();
n.SetCaretOffset(position);
}
void l_MoveUpRequest(object sender, EventArgs e)
{
bool playing = false;
if (RequestPlaying != null)
RequestPlaying(out playing);
if (playing && RequestPlayPause != null)
RequestPlayPause();
Element el = (Element)sender;
TranscriptionElement tr = el.ValueElement;
if (tr == null)
return;
TextViewPosition twpos = el.editor.TextArea.Caret.Position;
var prev = tr.Previous();
if (prev != null)
{
this.Dispatcher.Invoke(() =>
{
listbox.ScrollIntoView(prev);
var n = listbox.ItemContainerGenerator.ContainerFromItem(prev).VisualFindChild<Element>();
Point p = el.editor.TextArea.TextView.GetVisualPosition(twpos, VisualYPosition.LineMiddle);
p = el.editor.PointToScreen(p);
VisualLine last = n.editor.TextArea.TextView.VisualLines.Last();
int len = last.StartOffset + last.TextLines.Sum(x => x.Length) - last.TextLines.Last().Length;
Point p2 = n.editor.TextArea.TextView.GetVisualPosition(new TextViewPosition(n.editor.Document.GetLocation(len)), VisualYPosition.LineMiddle);
p2 = n.editor.PointToScreen(p2);
Point loc = new Point(p.X, p2.Y);
p2 = n.editor.PointFromScreen(loc);
var tpos = n.editor.TextArea.TextView.GetPosition(p2);
int pos = 0;
if (tpos.HasValue)
{
pos = n.editor.Document.Lines[tpos.Value.Line - 1].Offset + tpos.Value.Column - 1;
}
else
{
pos = n.editor.Document.TextLength;
}
n.SetCaretOffset(pos);
}, DispatcherPriority.Background);
}
if (playing && RequestPlayPause != null)
RequestPlayPause();
}
public void FindNext(string pattern, bool isregex, bool CaseSensitive, bool searchinspeakers)
{
//foreach (Element e in VirtualizingListBox.gridstack.Children)
//{
// e.editor.SelectionLength = 0;
//}
if (VirtualizingListBox.ActiveTransctiption == null)
{
if (_transcription.Chapters.Count > 0)
{
VirtualizingListBox.ActiveTransctiption = _transcription.Chapters[0];
}
else
{
return;
}
}
TranscriptionElement tag = VirtualizingListBox.ActiveTransctiption;
TranscriptionElement pr = tag;
if (pr == null)
{
tag = Transcription.Chapters[0];
}
int len;
if (Transcription.FindNext(ref tag, ref searchtextoffset, out len, pattern, isregex, CaseSensitive, searchinspeakers))
{
TranscriptionElement p = tag;
waveform1.CaretPosition = p.Begin;
VirtualizingListBox.ActiveTransctiption = p;
if (VirtualizingListBox.ActiveElement != null)
{
VirtualizingListBox.ActiveElement.SetSelection(searchtextoffset, len, 0);
searchtextoffset += len;
}
}
else
{
if (MessageBox.Show(Properties.Strings.MessageBoxSearchTryFromBegining, Properties.Strings.MessageBoxSearchCaption, MessageBoxButton.OKCancel, MessageBoxImage.Information) == MessageBoxResult.OK)
{
var first = _transcription.First();
VirtualizingListBox.ActiveTransctiption = first;
FindNext(pattern, isregex, CaseSensitive, searchinspeakers);
}
}
}
void l_MoveDownRequest(object sender, EventArgs e)
{
bool playing = false;
if (RequestPlaying != null)
RequestPlaying(out playing);
if (playing && RequestPlayPause != null)
RequestPlayPause();
Element el = (Element)sender;
TranscriptionElement tr = el.ValueElement;
if (tr == null)
return;
TextViewPosition twpos = el.editor.TextArea.Caret.Position;
var next = tr.Next();
if (next != null)
{
this.Dispatcher.Invoke(() =>
{
listbox.ScrollIntoView(next);
var n = listbox.ItemContainerGenerator.ContainerFromItem(next).VisualFindChild<Element>();
el = GetVisualForTransctiption(tr);
Point p = el.editor.TextArea.TextView.GetVisualPosition(twpos, VisualYPosition.LineMiddle);
p = el.editor.PointToScreen(p);
Point p2 = n.editor.TextArea.TextView.GetVisualPosition(new TextViewPosition(1, 1), VisualYPosition.LineMiddle);
p2 = n.editor.PointToScreen(p2);
Point loc = new Point(p.X, p2.Y);
p2 = n.editor.PointFromScreen(loc);
var tpos = n.editor.TextArea.TextView.GetPosition(p2);
int pos = 0;
if (tpos.HasValue)
pos = n.editor.Document.Lines[tpos.Value.Line - 1].Offset + tpos.Value.Column - 1;
else
pos = n.editor.Document.TextLength;
n.SetCaretOffset(pos);
}, DispatcherPriority.Background);
}
if (playing && RequestPlayPause != null)
RequestPlayPause();
}
private void Vizualizer_PreviewKeyDown(object sender, KeyEventArgs e)
{
if (e.Key == Key.Tab)
{
if (PlayPauseRequest != null)
PlayPauseRequest(this, new EventArgs());
e.Handled = true;
return;
}
if (ActiveElement == null)
return;
var trans = ActiveElement.TransformToAncestor(listbox);
var topleft = trans.Transform(new Point(5, 5));
if (e.Key == Key.PageDown)
{
e.Handled = true;
_scrollViewer.PageDown();
Dispatcher.Invoke(() =>
{
TranscriptionElement elm = null;
var elmc = listbox.ItemContainerGenerator.ContainerFromItem(Transcription.Last()) as ListBoxItem;
if (elmc != null)
{
var pnt = elmc.TransformToAncestor(listbox).Transform(new Point(0, 0));
if (pnt.Y < listbox.ActualHeight)
elm = Transcription.Last();
}
if (elm == null)
elm = listbox.GetObjectAtPoint<ListBoxItem>(topleft) as TranscriptionElement;
if (elm == null)
elm = listbox.GetObjectAtPoint<ListBoxItem>(new Point(5, 5)) as TranscriptionElement;
if (elm != null)
{
ActiveTransctiption = elm;
ActiveElement.SetCaretOffset(0);
}
}, DispatcherPriority.Background);
}
else if (e.Key == Key.PageUp)
{
e.Handled = true;
_scrollViewer.PageUp();
Dispatcher.Invoke(() =>
{
TranscriptionElement elm = null;
var elmc = listbox.ItemContainerGenerator.ContainerFromItem(Transcription.First()) as ListBoxItem;
if (elmc != null)
{
var pnt = elmc.TransformToAncestor(listbox).Transform(new Point(elmc.ActualWidth - 1, elmc.ActualHeight - 1));
if (pnt.Y > 0)
elm = Transcription.First();
}
if (elm == null)
elm = listbox.GetObjectAtPoint<ListBoxItem>(topleft) as TranscriptionElement;
if (elm == null)
elm = listbox.GetObjectAtPoint<ListBoxItem>(new Point(5, 5)) as TranscriptionElement;
if (elm != null)
{
ActiveTransctiption = elm;
ActiveElement.SetCaretOffset(0);
}
}, DispatcherPriority.Background);
}
}
public Element GetVisualForTransctiption(TranscriptionElement el)
{
return listbox.ItemContainerGenerator.ContainerFromItem(el).VisualFindChild<Element>();
}
private void FixPosSetFor(TranscriptionElement elm)
{
_FixPosElm = elm;
var prevc = listbox.ItemContainerGenerator.ContainerFromItem(elm) as ListBoxItem;
_FixPosElmPos = prevc.TransformToAncestor(_scrollViewer).Transform(new Point(0, 0));
}
private void CPlayPauseExecute(object sender, ExecutedRoutedEventArgs e)
{
if (MWP == null)
{
InitializeAudioPlayer();
}
if (MWP == null)
{
return;
}
if (_playing)
{
if (videoAvailable)
{
meVideo.Pause();
}
PlayingSelection = false;
Playing = false;
waveform1.CaretPosition = MWP.PausedAt;
}
else
{
// waveform1.Invalidate();
bool adjustspeed = false;
if ((Keyboard.Modifiers & ModifierKeys.Shift) == ModifierKeys.Shift || ToolBar2BtnSlow.IsChecked == true)
{
adjustspeed = true;
meVideo.SpeedRatio = Settings.Default.SlowedPlaybackSpeed;
}
else
{
meVideo.SpeedRatio = 1.0;
}
if ((Keyboard.Modifiers & ModifierKeys.Control) == ModifierKeys.Control)
{
if (waveform1.WaveBegin > waveform1.SelectionEnd || waveform1.WaveEnd < waveform1.SelectionBegin)
{
waveform1.SelectionBegin = VirtualizingListBox.ActiveTransctiption.Begin;
waveform1.SelectionEnd = VirtualizingListBox.ActiveTransctiption.End;
}
PlayingSelection = true;
oldms = TimeSpan.Zero;
if ((waveform1.SelectionBegin - waveform1.SelectionEnd).Duration() > TimeSpan.FromMilliseconds(100))
{
SetCaretPosition(waveform1.SelectionBegin);
}
else
{
TranscriptionElement par = VirtualizingListBox.ActiveTransctiption;
TimeSpan konec = par.End + TimeSpan.FromMilliseconds(5);
SetCaretPosition(konec);
waveform1.SelectionBegin = konec;
waveform1.SelectionEnd = konec + TimeSpan.FromMilliseconds(120000);
}
}
meVideo.Position = waveform1.CaretPosition;
if (videoAvailable)
{
meVideo.Play();
}
//spusteni prehravani pomoci tlacitka-kvuli nacteni primeho prehravani
Playing = true; //TODO: MWP and Playing are not properly linked - you have to set Playing to true before calling play
if (adjustspeed)
{
MWP.Play(Settings.Default.SlowedPlaybackSpeed);
}
else
{
MWP.Play();
}
}
}
