public override bool InsertText(string aText)
{
if (FActiveArea != ExpressArea.ceaNone)
{
if (FActiveArea == ExpressArea.ceaTop)
{
FSupText = FSupText.Insert(FCaretOffset, aText);
}
else
if (FActiveArea == ExpressArea.ceaBottom)
{
FSubText = FSubText.Insert(FCaretOffset, aText);
}
FCaretOffset += (short)aText.Length;
this.FormatDirty();
return(true);
}
else
{
return(false);
}
}
public override bool InsertText(string AText)
{
if (FActiveArea != ExpressArea.ceaNone)
{
if (FActiveArea == ExpressArea.ceaTop)
{
FSupText = FSupText.Insert(FCaretOffset, AText);
}
else
if (FActiveArea == ExpressArea.ceaBottom)
{
FSubText = FSubText.Insert(FCaretOffset, AText);
}
FCaretOffset += (short)AText.Length;
this.SizeChanged = true;
return(true);
}
else
{
return(false);
}
}
public override void GetCaretInfo(ref HCCaretInfo aCaretInfo)
{
if (FActiveArea != ExpressArea.ceaNone)
{
ApplySupSubStyle(OwnerData.Style.TextStyles[TextStyleNo], OwnerData.Style.TempCanvas);
if (FActiveArea == ExpressArea.ceaTop)
{
aCaretInfo.Height = FSupRect.Bottom - FSupRect.Top;
aCaretInfo.X = FSupRect.Left + OwnerData.Style.TempCanvas.TextWidth(FSupText.Substring(0, FCaretOffset));
aCaretInfo.Y = FSupRect.Top;
}
else
if (FActiveArea == ExpressArea.ceaBottom)
{
aCaretInfo.Height = FSubRect.Bottom - FSubRect.Top;
aCaretInfo.X = FSubRect.Left + OwnerData.Style.TempCanvas.TextWidth(FSubText.Substring(0, FCaretOffset));
aCaretInfo.Y = FSubRect.Top;
}
}
else
{
aCaretInfo.Visible = false;
}
}
public override void KeyDown(KeyEventArgs e)
{
switch (e.KeyValue)
{
case User.VK_BACK:
if (FActiveArea == ExpressArea.ceaTop)
{
if (FCaretOffset > 0)
{
FSupText = FSupText.Remove(FCaretOffset - 1, 1);
FCaretOffset--;
}
}
else
if (FActiveArea == ExpressArea.ceaBottom)
{
if (FCaretOffset > 0)
{
FSubText = FSubText.Remove(FCaretOffset - 1, 1);
FCaretOffset--;
}
}
this.FormatDirty();
break;
case User.VK_LEFT:
if (FCaretOffset > 0)
{
FCaretOffset--;
}
break;
case User.VK_RIGHT:
string vS = "";
if (FActiveArea == ExpressArea.ceaTop)
{
vS = FSupText;
}
else
if (FActiveArea == ExpressArea.ceaBottom)
{
vS = FSubText;
}
if (FCaretOffset < vS.Length)
{
FCaretOffset--;
}
break;
case User.VK_DELETE:
if (FActiveArea == ExpressArea.ceaTop)
{
if (FCaretOffset < FSupText.Length)
{
FSupText = FSupText.Remove(FCaretOffset, 1);
}
}
else
if (FActiveArea == ExpressArea.ceaBottom)
{
if (FCaretOffset < FSubText.Length)
{
FSubText = FSubText.Remove(FCaretOffset, 1);
}
}
this.FormatDirty();
break;
case User.VK_HOME:
FCaretOffset = 0;
break;
case User.VK_END:
if (FActiveArea == ExpressArea.ceaTop)
{
FCaretOffset = (short)FSupText.Length;
}
else
if (FActiveArea == ExpressArea.ceaBottom)
{
FCaretOffset = (short)FSubText.Length;
}
break;
}
}