/// <summary>
/// 画报表标题
/// </summary>
private void DrawChartName()
{
string chartName = string.IsNullOrWhiteSpace(this.ChartName) ? "报表" : this.ChartName;
chartNameRectangle = new TRectangle(this.Width * 0.5F - chartName.Length * 30 / 2, 5, chartName.Length * 30, 31);
graphics.DrawString(chartName, new Font("Arial", 20, FontStyle.Regular), Brushes.Black, chartNameRectangle.X, chartNameRectangle.Y);
}
/// <summary>
/// 画提示框
/// </summary>
public void DrawTipRectangle(Graphics graphics)
{
StringFormat stringFormat = new StringFormat();
stringFormat.Alignment = StringAlignment.Center;
stringFormat.LineAlignment = StringAlignment.Center;
Pen tipPen = new Pen(this.Color, 1);
graphics.DrawLine(tipPen, X, Y, X, Y - 6);
this.Width = Value.Length * 8;
this.Rectangle = new TRectangle(X - this.Width / 2, Y - 6 - this.Height, this.Width, this.Height);
graphics.DrawRectangle(tipPen, this.Rectangle.X, this.Rectangle.Y, this.Rectangle.Width, this.Rectangle.Height);
//画白色背景
graphics.FillRectangle(new SolidBrush(Color.White), this.Rectangle.X + 1, this.Rectangle.Y + 1, this.Rectangle.Width - 2, this.Rectangle.Height - 2);
graphics.DrawString(this.Value, new Font("宋体", 9, FontStyle.Regular), new SolidBrush(this.Color), new RectangleF(this.Rectangle.X, this.Rectangle.Y, this.Rectangle.Width, this.Rectangle.Height), stringFormat);
}
/// <summary>
/// 画图例
/// </summary>
private void DrawLegend()
{
//序列名称最长的长度
var seriesNameMaxLength = series.Select(s => s.Name).Max(m => m.Length);
int seriesCount = series.Count;
int steps = 0;
int colorIndex = 0;
float seriesWidth = 20;
float seriesHeight = 14;
//图例原点坐标
legendRectangle = new TRectangle {
X = this.Width - 10 - seriesWidth - 2 - 12 * seriesNameMaxLength, Y = chartNameRectangle.Y + chartNameRectangle.Height + 5
};
//画具体的series
foreach (var item in series)
{
if (item.SeriesColor == Color.Empty)
{
Color itemColor = Color.Empty;
//项目颜色
if (colorIndex > itemColors.Length)
{
itemColor = itemColors[colorIndex - itemColors.Length];
}
{
itemColor = itemColors[colorIndex];
}
item.SeriesColor = itemColor;
colorIndex++;
}
TRectangle seriesRect = new TRectangle(legendRectangle.X + 5, legendRectangle.Y + seriesHeight * steps + 4 * (steps + 1), seriesWidth, seriesHeight);
graphics.FillRectangle(new SolidBrush(item.SeriesColor), seriesRect);
item.LegendRectangle = seriesRect;
//画内部阴影矩形
graphics.DrawRectangle(rectInsidePen, seriesRect.X, seriesRect.Y, seriesRect.Width, seriesRect.Height);
graphics.DrawString(item.Name, new Font("宋体", 10, FontStyle.Regular), Brushes.Black, seriesRect.X + seriesWidth, seriesRect.Y);
steps++;
}
legendRectangle.Width = this.Width - 5 - legendRectangle.X;
legendRectangle.Height = seriesHeight * seriesCount + 4 * seriesCount + 4;
graphics.DrawRectangle(legendPen, legendRectangle);
}
/// <summary>
/// 画X、Y轴
/// </summary>
private void DrawXY()
{
Pen XYpen = new Pen(Color.FromArgb(125, 94, 32), 1);
//画X轴
graphics.DrawLine(XYpen, intersection.X, intersection.Y, this.Width - legendRectangle.Width - 20, intersection.Y);
XLength = this.Width - legendRectangle.Width - 20 - intersection.X;
//画Y轴
graphics.DrawLine(XYpen, intersection.X, intersection.Y, intersection.X, this.legendRectangle.Y);
YLength = intersection.Y - this.legendRectangle.Y;
//画边界线
graphics.DrawLine(legendPen, intersection.X, intersection.Y - YLength, intersection.X + XLength, intersection.Y - YLength);
graphics.DrawLine(legendPen, intersection.X + XLength, intersection.Y - YLength, intersection.X + XLength, intersection.Y);
XYRectangle = new TRectangle(intersection.X + 1, this.legendRectangle.Y + 1, XLength - 2, YLength - 2);
//填充背景色
graphics.FillRectangle(new LinearGradientBrush(new PointF(0, 0), new PointF(XYRectangle.X + XYRectangle.Width, XYRectangle.Y + XYRectangle.Height), Color.FromArgb(249, 241, 228), Color.FromArgb(249, 241, 228)), XYRectangle);
}
/// <summary>
/// 画矩形
/// </summary>
/// <param name="graphics">绘图图面</param>
/// <param name="pen">画笔</param>
/// <param name="x">X坐标</param>
/// <param name="y">Y坐标</param>
/// <param name="width">宽度</param>
/// <param name="height">高度</param>
public static void FillRectangle(this Graphics graphics, Brush brush, TRectangle rectangle)
{
graphics.FillRectangle(brush, rectangle.X, rectangle.Y, rectangle.Width, rectangle.Height);
}
/// <summary>
/// 画矩形
/// </summary>
/// <param name="graphics">绘图图面</param>
/// <param name="pen">画笔</param>
/// <param name="x">X坐标</param>
/// <param name="y">Y坐标</param>
/// <param name="width">宽度</param>
/// <param name="height">高度</param>
public static void DrawRectangle(this Graphics graphics, Pen pen, TRectangle rectangle)
{
graphics.DrawRectangle(pen, rectangle.X, rectangle.Y, rectangle.Width, rectangle.Height);
}
