/// <summary>
/// 背景の色を設定する.
/// </summary>
public void SaveSetBackgroundColorTrace()
{
var bgColor = this.BackgroundColor;
var colorbrush = this.layoutRoot.Background as SolidColorBrush;
System.Diagnostics.Debug.WriteLine("SaveSetBackgroundColorTrace: {0}", bgColor);
// 今透明
// --> 透明にするなら記録の必要なし
// 今透明でない
// --> 同じ色にするなら記録の必要なし
if ((colorbrush == null) || (colorbrush.Color.A == 0))
{
if (bgColor.A == 0)
{
return;
}
}
else
{
if (bgColor == colorbrush.Color)
{
return;
}
}
var trace = new SetBackgroundColorTrace()
{
Timestamp = DateTimeOffset.UtcNow.Ticks,
Color = this.BackgroundColor,
};
this.inputRecorderForNewTrace.Add(trace);
SetBackgroundColor(trace);
}
/// <summary>
/// 文字列にシリアライズされた手描き入力を復元する.
/// </summary>
/// <param name="text"></param>
/// <returns></returns>
private static InputTraceBase ParseTrace(string text)
{
JsonArray jsonArray;
if (!JsonArray.TryParse(text, out jsonArray))
{
return(null);
}
InputTraceKind kind;
if (!Enum.TryParse(jsonArray.GetStringAt(0), out kind))
{
return(null);
}
InputTraceBase trace;
switch (kind)
{
case InputTraceKind.BeginStroke:
trace = new BeginStrokeTrace();
break;
case InputTraceKind.MoveStroke:
trace = new MoveStrokeTrace();
break;
case InputTraceKind.EndStroke:
trace = new EndStrokeTrace();
break;
case InputTraceKind.RemoveStroke:
trace = new RemoveStrokeTrace();
break;
case InputTraceKind.SetStrokeColor:
trace = new SetStrokeColorTrace();
break;
case InputTraceKind.SetStrokeThickness:
trace = new SetStrokeThicknessTrace();
break;
case InputTraceKind.SetBackgroundColor:
trace = new SetBackgroundColorTrace();
break;
case InputTraceKind.SetImage:
trace = new SetImageTrace();
break;
default:
return(null);
}
trace.LoadFromJson(jsonArray);
return(trace);
}
/// <summary>
/// 背景の色を設定する.
/// </summary>
/// <param name="trace"></param>
private void SetBackgroundColor(SetBackgroundColorTrace trace)
{
System.Diagnostics.Debug.WriteLine("SetBackgroundColorTrace: {0}", trace.Color);
//var colorbrush = this.layoutRoot.Background as SolidColorBrush;
//if ((colorbrush != null) && (colorbrush.Color == trace.Color))
//{
// return;
//}
//else if ((colorbrush == null) && (this.BackgroundColor.A == 0))
//{
// return;
//}
this.layoutRoot.Background = new SolidColorBrush(trace.Color);
}
