public override bool InsertText(string aText)
{
if (FActiveArea != ExpressArea.ceaNone)
{
switch (FActiveArea)
{
case ExpressArea.ceaLeft:
FLeftText = FLeftText.Insert(FCaretOffset, aText);
FCaretOffset += (short)aText.Length;
this.FormatDirty();
return(true);
case ExpressArea.ceaRight:
FRightText = FRightText.Insert(FCaretOffset, aText);
FCaretOffset += (short)aText.Length;
this.FormatDirty();
return(true);
default:
return(base.InsertText(aText));
}
}
else
{
return(false);
}
}
public override bool InsertText(string AText)
{
if (FActiveArea != ExpressArea.ceaNone)
{
switch (FActiveArea)
{
case ExpressArea.ceaLeft:
FLeftText = FLeftText.Insert(FCaretOffset, AText);
FCaretOffset += (short)AText.Length;
this.SizeChanged = true;
return(true);
case ExpressArea.ceaRight:
FRightText = FRightText.Insert(FCaretOffset, AText);
FCaretOffset += (short)AText.Length;
this.SizeChanged = true;
return(true);
default:
return(base.InsertText(AText));
}
}
else
{
return(false);
}
}
public override void GetCaretInfo(ref HCCaretInfo aCaretInfo)
{
if (FActiveArea != ExpressArea.ceaNone)
{
OwnerData.Style.ApplyTempStyle(TextStyleNo);
switch (FActiveArea)
{
case ExpressArea.ceaLeft:
if (FCaretOffset < 0)
{
FCaretOffset = 0;
}
aCaretInfo.Height = FLeftRect.Bottom - FLeftRect.Top;
aCaretInfo.X = FLeftRect.Left + OwnerData.Style.TempCanvas.TextWidth(FLeftText.Substring(0, FCaretOffset));
aCaretInfo.Y = FLeftRect.Top;
break;
case ExpressArea.ceaTop:
if (FCaretOffset < 0)
{
FCaretOffset = 0;
}
aCaretInfo.Height = TopRect.Bottom - TopRect.Top;
aCaretInfo.X = TopRect.Left + OwnerData.Style.TempCanvas.TextWidth(TopText.Substring(0, FCaretOffset));
aCaretInfo.Y = TopRect.Top;
break;
case ExpressArea.ceaRight:
if (FCaretOffset < 0)
{
FCaretOffset = 0;
}
aCaretInfo.Height = FRightRect.Bottom - FRightRect.Top;
aCaretInfo.X = FRightRect.Left + OwnerData.Style.TempCanvas.TextWidth(FRightText.Substring(0, FCaretOffset));
aCaretInfo.Y = FRightRect.Top;
break;
case ExpressArea.ceaBottom:
if (FCaretOffset < 0)
{
FCaretOffset = 0;
}
aCaretInfo.Height = BottomRect.Bottom - BottomRect.Top;
aCaretInfo.X = BottomRect.Left + OwnerData.Style.TempCanvas.TextWidth(BottomText.Substring(0, FCaretOffset));
aCaretInfo.Y = BottomRect.Top;
break;
}
}
else
{
aCaretInfo.Visible = false;
}
}
public override void KeyDown(KeyEventArgs e)
{
if ((FActiveArea == ExpressArea.ceaLeft) || (FActiveArea == ExpressArea.ceaRight))
{
switch (e.KeyValue)
{
case User.VK_BACK:
if (FActiveArea == ExpressArea.ceaLeft)
{
if (FCaretOffset > 0)
{
FLeftText = FLeftText.Remove(FCaretOffset - 1, 1);
FCaretOffset--;
}
}
else
{
if (FCaretOffset > 0)
{
FRightText = FRightText.Remove(FCaretOffset - 1, 1);
FCaretOffset--;
}
}
this.FormatDirty();
break;
case User.VK_LEFT:
if (FCaretOffset > 0)
{
FCaretOffset--;
}
break;
case User.VK_RIGHT:
string vS = FRightText;
if (FActiveArea == ExpressArea.ceaLeft)
{
vS = FLeftText;
}
if (FCaretOffset < vS.Length)
{
FCaretOffset++;
}
break;
case User.VK_DELETE:
if (FActiveArea == ExpressArea.ceaLeft)
{
if (FCaretOffset < FLeftText.Length)
{
FLeftText = FLeftText.Remove(FCaretOffset, 1);
}
}
else
{
if (FCaretOffset < FRightText.Length)
{
FRightText = FRightText.Remove(FCaretOffset, 1);
}
}
this.FormatDirty();
break;
case User.VK_HOME:
FCaretOffset = 0;
break;
case User.VK_END:
if (FActiveArea == ExpressArea.ceaLeft)
{
FCaretOffset = (short)FLeftText.Length;
}
else
{
FCaretOffset = (short)FRightText.Length;
}
break;
}
}
else
{
base.KeyDown(e);
}
}
