/// <summary>
/// カーソルを更新します。
/// </summary>
/// <param name="mouse">マウス座標</param>
/// <param name="result">ヒットテストの結果</param>
/// <param name="x">x座標</param>
/// <param name="max_x">最大x座標</param>
/// <param name="format">価格表示のフォーマット</param>
public virtual void UpdateCursors(Point mouse, HitTestResult result, int x, int max_x, string format)
{
if (result.ChartArea == this)
{
// マウスが自エリア内の場合
// カーソル
CursorX.SetCursorPixelPosition(mouse, false);
CursorY.SetCursorPixelPosition(mouse, false);
// カーソルラベルY
CursorLabelY.Text = AxisY2.PixelPositionToValue(mouse.Y).ToString(format);
CursorLabelY.Top = mouse.Y - CursorLabelY.Height / 2;
if (AxisX.ScaleView.Position + AxisX.ScaleView.Size > max_x)
{
CursorLabelY.Left = (int)(AxisX.ValueToPixelPosition(AxisX.ScaleView.Position + AxisX.ScaleView.Size) + 1);
}
else
{
CursorLabelY.Left = (int)(AxisX.ValueToPixelPosition(AxisX.ScaleView.Position + AxisX.ScaleView.Size + 1) + 1);
}
CursorLabelY.Visible = true;
}
else
{
// マウスが他エリア内の場合
// カーソル
CursorY.Position = double.NaN;
// カーソルラベルY
CursorLabelY.Visible = false;
}
}
// drawing axis title near arrows
private void GraphArea_PostPaint(object sender, ChartPaintEventArgs e)
{
if (e.ChartElement is Chart && (axisX.TitleAlignment == TitleAlignment.NearAxisArrow || axisY.TitleAlignment == TitleAlignment.NearAxisArrow))
{
Chart chart = (Chart)e.ChartElement;
Graphics g = e.ChartGraphics.Graphics;
Font drawFont = new Font("Verdana", 8);
SolidBrush drawBrush = new SolidBrush(Color.Black);
float x, y;
// X AXIS
if (axisX.TitleAlignment == TitleAlignment.NearAxisArrow)
{
x = chart.Width - 90 - g.MeasureString(axisX.TextToDisplay, drawFont).Width;
y = (float)AxisY.ValueToPixelPosition(0) - 20;
g.DrawString(axisX.TextToDisplay, drawFont, drawBrush, x, y);
}
// Y AXIS
if (axisY.TitleAlignment == TitleAlignment.NearAxisArrow)
{
x = (float)AxisX.ValueToPixelPosition(0);
y = chart.Location.X;
g.DrawString(axisY.TextToDisplay, drawFont, drawBrush, x, y);
}
drawFont.Dispose();
drawBrush.Dispose();
}
}
