public void OnKeyDown(UIKeyEventArgs e)
{
this.SetCaretState(true);
if (!e.HasKeyData)
{
return;
}
switch (e.KeyCode)
{
case UIKeys.Home:
{
this.DoHome(e.Shift);
} break;
case UIKeys.End:
{
this.DoEnd(e.Shift);
} break;
case UIKeys.Back:
{
if (internalTextLayerController.SelectionRange != null)
{
InvalidateGraphicLocalArea(this, GetSelectionUpdateArea());
}
else
{
InvalidateGraphicOfCurrentLineArea();
}
if (textSurfaceEventListener == null)
{
internalTextLayerController.DoBackspace();
}
else
{
if (!TextSurfaceEventListener.NotifyPreviewBackSpace(textSurfaceEventListener) &&
internalTextLayerController.DoBackspace())
{
TextSurfaceEventListener.NotifyCharactersRemoved(textSurfaceEventListener,
new TextDomEventArgs(internalTextLayerController.updateJustCurrentLine));
}
}
EnsureCaretVisible();
} break;
case UIKeys.Delete:
{
if (internalTextLayerController.SelectionRange != null)
{
InvalidateGraphicLocalArea(this, GetSelectionUpdateArea());
}
else
{
InvalidateGraphicOfCurrentLineArea();
}
if (textSurfaceEventListener == null)
{
internalTextLayerController.DoDelete();
}
else
{
VisualSelectionRangeSnapShot delpart = internalTextLayerController.DoDelete();
TextSurfaceEventListener.NotifyCharactersRemoved(textSurfaceEventListener,
new TextDomEventArgs(internalTextLayerController.updateJustCurrentLine));
}
EnsureCaretVisible();
} break;
default:
{
if (textSurfaceEventListener != null)
{
UIKeys keycode = e.KeyCode;
if (keycode >= UIKeys.F1 && keycode <= UIKeys.F12)
{
InvalidateGraphicLocalArea(this, GetSelectionUpdateArea());
TextSurfaceEventListener.NotifyFunctionKeyDown(textSurfaceEventListener, keycode);
EnsureCaretVisible();
}
}
} break;
}
if (e.HasKeyData && e.Ctrl)
{
switch (e.KeyCode)
{
case UIKeys.C:
{
StringBuilder stBuilder = GetFreeStringBuilder();
internalTextLayerController.CopySelectedTextToPlainText(stBuilder);
if (stBuilder != null)
{
if (stBuilder.Length == 0)
{
Clipboard.Clear();
}
else
{
Clipboard.SetText(stBuilder.ToString());
}
}
ReleaseStringBuilder(stBuilder);
} break;
case UIKeys.V:
{
if (Clipboard.ContainUnicodeText())
{
internalTextLayerController.AddTextRunsToCurrentLine(
new EditableRun[] {
new EditableTextRun(this.Root,
Clipboard.GetUnicodeText(), this.CurrentTextSpanStyle)
});
EnsureCaretVisible();
}
} break;
case UIKeys.X:
{
if (internalTextLayerController.SelectionRange != null)
{
if (internalTextLayerController.SelectionRange != null)
{
InvalidateGraphicLocalArea(this, GetSelectionUpdateArea());
}
StringBuilder stBuilder = GetFreeStringBuilder();
internalTextLayerController.CopySelectedTextToPlainText(stBuilder);
if (stBuilder != null)
{
Clipboard.SetText(stBuilder.ToString());
}
internalTextLayerController.DoDelete();
EnsureCaretVisible();
ReleaseStringBuilder(stBuilder);
}
} break;
case UIKeys.Z:
{
internalTextLayerController.UndoLastAction();
EnsureCaretVisible();
} break;
case UIKeys.Y:
{
internalTextLayerController.ReverseLastUndoAction();
EnsureCaretVisible();
} break;
case UIKeys.B:
{
//TextSpanStyle style = internalTextLayerController.GetFirstTextStyleInSelectedRange();
//TextSpanStyle textStyle = null;
////test only ***
////TODO: make this more configurable
//if (style != null)
//{
// TextSpanStyle defaultBeh = ((TextSpanStyle)style);
// if (defaultBeh.FontBold)
// {
// textStyle = StyleHelper.CreateNewStyle(Color.Black);
// }
// else
// {
// textStyle = StyleHelper.CreateNewStyle(Color.Blue);
// }
//}
//else
//{
// textStyle = StyleHelper.CreateNewStyle(Color.Blue);
//}
//internalTextLayerController.DoFormatSelection(textStyle);
//if (internalTextLayerController.updateJustCurrentLine)
//{
// InvalidateGraphicOfCurrentLineArea();
//}
//else
//{
// InvalidateGraphics();
//}
} break;
}
}
if (textSurfaceEventListener != null)
{
TextSurfaceEventListener.NotifyKeyDown(textSurfaceEventListener, e.KeyCode);
}
}
public void HandleKeyDown(UIKeyEventArgs e)
{
this.SetCaretState(true);
if (!e.HasKeyData)
{
return;
}
switch (e.KeyCode)
{
case UIKeys.Home:
{
this.DoHome(e.Shift);
}
break;
case UIKeys.End:
{
this.DoEnd(e.Shift);
}
break;
case UIKeys.Back:
{
if (internalTextLayerController.SelectionRange != null)
{
InvalidateGraphicLocalArea(this, GetSelectionUpdateArea());
}
else
{
InvalidateGraphicOfCurrentLineArea();
}
if (textSurfaceEventListener == null)
{
internalTextLayerController.DoBackspace();
}
else
{
if (!TextSurfaceEventListener.NotifyPreviewBackSpace(textSurfaceEventListener) &&
internalTextLayerController.DoBackspace())
{
TextSurfaceEventListener.NotifyCharactersRemoved(textSurfaceEventListener,
new TextDomEventArgs(internalTextLayerController.updateJustCurrentLine));
}
}
EnsureCaretVisible();
}
break;
case UIKeys.Delete:
{
if (internalTextLayerController.SelectionRange != null)
{
InvalidateGraphicLocalArea(this, GetSelectionUpdateArea());
}
else
{
InvalidateGraphicOfCurrentLineArea();
}
if (textSurfaceEventListener == null)
{
internalTextLayerController.DoDelete();
}
else
{
VisualSelectionRangeSnapShot delpart = internalTextLayerController.DoDelete();
TextSurfaceEventListener.NotifyCharactersRemoved(textSurfaceEventListener,
new TextDomEventArgs(internalTextLayerController.updateJustCurrentLine));
}
EnsureCaretVisible();
}
break;
default:
{
if (textSurfaceEventListener != null)
{
UIKeys keycode = e.KeyCode;
if (keycode >= UIKeys.F1 && keycode <= UIKeys.F12)
{
InvalidateGraphicLocalArea(this, GetSelectionUpdateArea());
TextSurfaceEventListener.NotifyFunctionKeyDown(textSurfaceEventListener, keycode);
EnsureCaretVisible();
}
}
}
break;
}
if (e.HasKeyData && e.Ctrl)
{
switch (e.KeyCode)
{
case UIKeys.A:
{
//select all
//....
this.CurrentLineNumber = 0;
//start select to end
DoEnd(true); //simulate
this.CurrentLineNumber = this.LineCount - 1;
DoEnd(true);
}
break;
case UIKeys.C:
{
StringBuilder stBuilder = GetFreeStringBuilder();
internalTextLayerController.CopySelectedTextToPlainText(stBuilder);
if (stBuilder != null)
{
if (stBuilder.Length == 0)
{
Clipboard.Clear();
}
else
{
Clipboard.SetText(stBuilder.ToString());
}
}
ReleaseStringBuilder(stBuilder);
}
break;
case UIKeys.V:
{
if (Clipboard.ContainUnicodeText())
{
//1. we need to parse multi-line to single line
//this may need text-break services
internalTextLayerController.AddUnformattedStringToCurrentLine(
Clipboard.GetUnicodeText(), this.currentSpanStyle);
EnsureCaretVisible();
}
}
break;
case UIKeys.X:
{
if (internalTextLayerController.SelectionRange != null)
{
if (internalTextLayerController.SelectionRange != null)
{
InvalidateGraphicLocalArea(this, GetSelectionUpdateArea());
}
StringBuilder stBuilder = GetFreeStringBuilder();
internalTextLayerController.CopySelectedTextToPlainText(stBuilder);
if (stBuilder != null)
{
Clipboard.SetText(stBuilder.ToString());
}
internalTextLayerController.DoDelete();
EnsureCaretVisible();
ReleaseStringBuilder(stBuilder);
}
}
break;
case UIKeys.Z:
{
internalTextLayerController.UndoLastAction();
EnsureCaretVisible();
}
break;
case UIKeys.Y:
{
internalTextLayerController.ReverseLastUndoAction();
EnsureCaretVisible();
}
break;
case UIKeys.B:
{
//
//test add markers
//
//if (internalTextLayerController.SelectionRange != null)
//{
// //
// internalTextLayerController.SelectionRange.SwapIfUnOrder();
// VisualMarkerSelectionRange markerSelRange =
// VisualMarkerSelectionRange.CreateFromSelectionRange(
// internalTextLayerController.SelectionRange.GetSelectionRangeSnapshot());
// //then add to the marker layers
// markerSelRange.BindToTextLayer(textLayer);
// internalTextLayerController.VisualMarkers.Add(markerSelRange);
//}
//
//TextSpanStyle style = internalTextLayerController.GetFirstTextStyleInSelectedRange();
//TextSpanStyle textStyle = null;
////test only ***
////TODO: make this more configurable
//if (style != null)
//{
// TextSpanStyle defaultBeh = ((TextSpanStyle)style);
// if (defaultBeh.FontBold)
// {
// textStyle = StyleHelper.CreateNewStyle(Color.Black);
// }
// else
// {
// textStyle = StyleHelper.CreateNewStyle(Color.Blue);
// }
//}
//else
//{
// textStyle = StyleHelper.CreateNewStyle(Color.Blue);
//}
//internalTextLayerController.DoFormatSelection(textStyle);
//if (internalTextLayerController.updateJustCurrentLine)
//{
// InvalidateGraphicOfCurrentLineArea();
//}
//else
//{
// InvalidateGraphics();
//}
}
break;
}
}
if (textSurfaceEventListener != null)
{
TextSurfaceEventListener.NotifyKeyDown(textSurfaceEventListener, e.KeyCode);
}
}