/// <summary>
/// Create a keyframe and a label to host the subtitle.
/// </summary>
private static void AddSubtitle(Metadata metadata, int start, int end, string content)
{
long startTs = (long)(start * metadata.AverageTimeStampsPerSecond / 1000.0f);
long endTs = (long)(end * metadata.AverageTimeStampsPerSecond / 1000.0f);
// Make sure the keyframe timestamps corresponds to an actual video frame.
long startFrame = (long)Math.Round((float)startTs / metadata.AverageTimeStampsPerFrame);
startTs = startFrame * metadata.AverageTimeStampsPerFrame;
long endFrame = (long)Math.Round((float)endTs / metadata.AverageTimeStampsPerFrame);
endTs = endFrame * metadata.AverageTimeStampsPerFrame;
Guid id = Guid.NewGuid();
long position = startTs;
string title = null;
string timecode = start.ToString();
string comments = "";
List <AbstractDrawing> drawings = new List <AbstractDrawing>();
// Create a label object.
float top = metadata.ImageSize.Height * 0.75f;
PointF location = new PointF(200, top);
DrawingText drawing = new DrawingText(location, startTs, metadata.AverageTimeStampsPerFrame, content);
drawing.Name = "Subtitle";
drawing.InfosFading.UseDefault = false;
drawing.InfosFading.ReferenceTimestamp = position;
drawing.InfosFading.AverageTimeStampsPerFrame = metadata.AverageTimeStampsPerFrame;
drawing.InfosFading.AlwaysVisible = false;
drawing.InfosFading.OpaqueFrames = (int)((endTs - startTs) / (float)metadata.AverageTimeStampsPerFrame);
drawing.InfosFading.FadingFrames = 10;
// FIXME: there seems to be an issue with style element .Value modification.
//StyleElementFontSize styleElement = label.DrawingStyle.Elements["font size"] as StyleElementFontSize;
//if (styleElement != null)
//{
// styleElement.Value = 24;
// label.DrawingStyle.RaiseValueChanged();
//}
drawings.Add(drawing);
Keyframe keyframe = new Keyframe(id, position, title, timecode, comments, drawings, metadata);
metadata.MergeInsertKeyframe(keyframe);
}
public static AbstractDrawing FromXml(XmlTextReader _xmlReader, PointF _scale)
{
DrawingText dt = new DrawingText(0, 0, 0, 0, 0, 0);
while (_xmlReader.Read())
{
if (_xmlReader.IsStartElement())
{
if (_xmlReader.Name == "Text")
{
dt.m_Text = _xmlReader.ReadString();
}
else if (_xmlReader.Name == "Position")
{
Point p = XmlHelper.PointParse(_xmlReader.ReadString(), ';');
//dt.Background.Location = new Point(plotGrid.X, plotGrid.Y);
// Adapt to new Image size.
dt.m_BackgroundRectangle.Location = new Point((int)((float)p.X * _scale.X), (int)((float)p.Y * _scale.Y));
}
else if (_xmlReader.Name == "TextDecoration")
{
dt.m_TextStyle = InfosTextDecoration.FromXml(_xmlReader);
}
else if (_xmlReader.Name == "InfosFading")
{
dt.m_InfosFading.FromXml(_xmlReader);
}
else
{
// forward compatibility : ignore new fields.
}
}
else if (_xmlReader.Name == "Drawing")
{
break;
}
else
{
// Fermeture d'un tag interne.
}
}
dt.RescaleCoordinates(dt.m_fStretchFactor, dt.m_DirectZoomTopLeft);
dt.AutoSizeTextbox();
return(dt);
}
private void LabelAdded(object sender, DrawingEventArgs e)
{
//AbstractDrawing drawing, int keyframeIndex)
DrawingText label = e.Drawing as DrawingText;
if (label == null)
{
return;
}
label.ContainerScreen = view;
view.Controls.Add(label.EditBox);
label.EditBox.BringToFront();
label.EditBox.Focus();
}