/// <summary>
/// 現在のキャレット位置の領域を返す
/// </summary>
/// <returns>矩形領域を表すRectangle</returns>
public Rectangle GetCurrentCaretRect()
{
ITextLayout layout = this.LayoutLines.GetLayout(this.Document.CaretPostion.row);
double width = layout.GetWidthFromIndex(this.Document.CaretPostion.col);
if (width == 0.0)
{
width = this.CaretWidthOnInsertMode;
}
double height = this.LayoutLines.GetLineHeight(this.Document.CaretPostion);
Rectangle updateRect = new Rectangle(
this.CaretLocation.X,
this.CaretLocation.Y,
width,
height);
return(updateRect);
}
bool DrawCaret()
{
if (this.HideCaret || !this.IsFocused)
{
return(false);
}
long diff = DateTime.Now.Ticks - this.tickCount;
long blinkTime = this.To100nsTime(this.CaretBlinkTime);
if (this.CaretBlink && diff % blinkTime >= blinkTime / 2)
{
return(false);
}
Rectangle CaretRect = new Rectangle();
IEditorRender render = (IEditorRender)base.render;
int row = this.Document.CaretPostion.row;
ITextLayout layout = this.LayoutLines.GetLayout(row);
double lineHeight = render.emSize.Height;
double charWidth = layout.GetWidthFromIndex(this.Document.CaretPostion.col);
if (this.InsertMode || charWidth == 0)
{
CaretRect.Size = new Size(CaretWidthOnInsertMode, lineHeight);
CaretRect.Location = new Point(this.CaretLocation.X, this.CaretLocation.Y);
render.FillRectangle(CaretRect, FillRectType.InsertCaret);
}
else
{
double height = lineHeight / 3;
CaretRect.Size = new Size(charWidth, height);
CaretRect.Location = new Point(this.CaretLocation.X, this.CaretLocation.Y + lineHeight - height);
render.FillRectangle(CaretRect, FillRectType.OverwriteCaret);
}
return(true);
}
