void DrawUpdateArea(int row, double ypos)
{
IEditorRender render = (IEditorRender)base.render;
if (this.LayoutLines.GetDirtyFlag(row))
{
Point pos = new Point(this.PageBound.X + this.GetRealtiveX(AreaType.UpdateArea), ypos);
Rectangle rect = new Rectangle(pos.X, pos.Y, UpdateAreaWidth, this.LayoutLines.GetLayout(row).Height);
render.FillRectangle(rect, FillRectType.UpdateArea);
}
}
public void DrawLineMarker(Point pos, ITextLayout layout)
{
if (this.HideLineMarker)
{
return;
}
IEditorRender render = (IEditorRender)base.render;
Point p = this.CaretLocation;
double height = layout.Height;
double width = this.render.TextArea.Width;
render.FillRectangle(new Rectangle(this.PageBound.X + this.render.TextArea.X, pos.Y, width, height), FillRectType.LineMarker);
}
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);
}
void DrawInsertPoint()
{
//一つしかない場合は行選択の可能性がある
if (this.Selections.Count <= 1)
{
return;
}
IEditorRender render = (IEditorRender)base.render;
foreach (Selection sel in this.Selections)
{
if (sel.length == 0)
{
TextPoint tp = this.GetLayoutLineFromIndex(sel.start);
Point left = this.GetPostionFromTextPoint(tp);
double lineHeight = render.emSize.Height;
Rectangle InsertRect = new Rectangle(left.X,
left.Y,
CaretWidthOnInsertMode,
lineHeight);
render.FillRectangle(InsertRect, FillRectType.InsertPoint);
}
}
}
void DrawRuler()
{
IEditorRender render = (IEditorRender)base.render;
Point pos, from, to;
Size emSize = render.emSize;
Rectangle clipRect = this.render.TextArea;
int count = 0;
double markerHeight = emSize.Height / 2;
if (this.Document.RightToLeft)
{
pos = new Point(clipRect.TopRight.X, clipRect.TopRight.Y - emSize.Height - LineMarkerThickness);
for (; pos.X >= clipRect.TopLeft.X; pos.X -= emSize.Width, count++)
{
from = pos;
to = new Point(pos.X, pos.Y + emSize.Height);
int mod = count % 10;
if (mod == 0)
{
string countStr = (count / 10).ToString();
double counterWidth = emSize.Width * countStr.Length;
this.render.DrawString(countStr, pos.X - counterWidth, pos.Y, StringAlignment.Right, new Size(counterWidth, double.MaxValue));
}
else if (mod == 5)
{
from.Y = from.Y + emSize.Height / 2;
}
else
{
from.Y = from.Y + emSize.Height * 3 / 4;
}
render.DrawLine(from, to);
if (this.CaretLocation.X >= pos.X && this.CaretLocation.X < pos.X + emSize.Width)
{
render.FillRectangle(new Rectangle(pos.X, pos.Y + markerHeight, emSize.Width, markerHeight), FillRectType.OverwriteCaret);
}
}
}
else
{
pos = new Point(clipRect.TopLeft.X, clipRect.TopLeft.Y - emSize.Height - LineMarkerThickness);
for (; pos.X < clipRect.TopRight.X; pos.X += emSize.Width, count++)
{
from = pos;
to = new Point(pos.X, pos.Y + emSize.Height);
int mod = count % 10;
if (mod == 0)
{
this.render.DrawString((count / 10).ToString(), pos.X, pos.Y, StringAlignment.Left, new Size(double.MaxValue, double.MaxValue));
}
else if (mod == 5)
{
from.Y = from.Y + emSize.Height / 2;
}
else
{
from.Y = from.Y + emSize.Height * 3 / 4;
}
render.DrawLine(from, to);
if (this.CaretLocation.X >= pos.X && this.CaretLocation.X < pos.X + emSize.Width)
{
render.FillRectangle(new Rectangle(pos.X, pos.Y + markerHeight, emSize.Width, markerHeight), FillRectType.OverwriteCaret);
}
}
}
from = clipRect.TopLeft;
from.Y -= LineMarkerThickness;
to = clipRect.TopRight;
to.Y -= LineMarkerThickness;
render.DrawLine(from, to);
}