// 完毕:
using System;
using System.IO;
using System.Collections.Generic;
using System.Drawing;
using GrapeCity.Documents.Pdf;
using GrapeCity.Documents.Text;
using GrapeCity.Documents.Pdf.Annotations;
namespace DsPdfWeb.Demos.Basics
{
// 演示如何向 PDF 文档添加墨迹注释,
// 以及如何使用 InkAnnotation.Paths 属性呈现其内容。
public class InkAnnotPaths
{
public int CreatePDF(Stream stream)
{
var doc = new GcPdfDocument();
var page = doc.NewPage();
// 注释作者的用户名:
var user1 = "杰米·史密斯";
var rc = Common.Util.AddNote(
"此示例创建墨迹注释并演示如何使用 InkAnnotation.Paths 属性" +
"",
page);
var inkAnnot = new InkAnnotation()
{
UserName = user1,
Rect = new RectangleF(rc.Left, rc.Bottom + 20, 72 * 5, 72 * 2),
LineWidth = 2,
Color = Color.DarkBlue,
Contents = "这是通过 InkAnnotation.Paths 绘制的墨迹注释。"
};
float x0 = 80, x = 80, y = rc.Bottom + 24, h = 18, dx = 2, dy = 4, dx2 = 4, w = 10, xoff = 15;
// 乱写“墨迹注释”文本:
// i
var paths = new List<PointF[]>();
paths.Add(new[] { new PointF(x + w/2, y), new PointF(x + w/2, y + h), new PointF(x + w, y + h*.7f) });
paths.Add(new[] { new PointF(x + w/2 - dx, y - h/3 + dy), new PointF(x + w/2 + dx, y - h/3) });
// n
x += xoff;
paths.Add(new[] { new PointF(x, y), new PointF(x, y + h), new PointF(x, y + h - dy), new PointF(x + w*0.7f, y),
new PointF(x + w - dx/2, y + h*.6f), new PointF(x + w, y + h), new PointF(x + w + dx2, y + h*.7f) });
// k
x += xoff;
paths.Add(new[] { new PointF(x, y - h/3), new PointF(x, y + h) });
paths.Add(new[] { new PointF(x + w, y), new PointF(x + dx, y + h/2 - dy), new PointF(x, y + h/2),
new PointF(x + dx2, y + h/2 + dy), new PointF(x + w, y + h), new PointF(x + w + dx2, y + h*.7f) });
// a
x += xoff * 2;
paths.Add(new[] { new PointF(x + w, y + dy), new PointF(x + w/2, y), new PointF(x, y + h/2), new PointF(x + w/2, y + h),
new PointF(x + w, y + dy), new PointF(x + w, y), new PointF(x + w, y + h), new PointF(x + w + dx2, y + h*.7f) });
// n
x += xoff;
paths.Add(new[] { new PointF(x, y), new PointF(x, y + h), new PointF(x, y + h - dy), new PointF(x + w*0.7f, y),
new PointF(x + w - dx/2, y + h*.6f), new PointF(x + w, y + h), new PointF(x + w + dx2, y + h*.7f) });
// n
x += xoff;
paths.Add(new[] { new PointF(x, y), new PointF(x, y + h), new PointF(x, y + h - dy), new PointF(x + w*0.7f, y),
new PointF(x + w - dx/2, y + h*.6f), new PointF(x + w, y + h), new PointF(x + w + dx2, y + h*.7f) });
// o
x += xoff;
paths.Add(new[] { new PointF(x + w/2, y), new PointF(x + w/2 - dx, y), new PointF(x, y + h/2), new PointF(x + w/2, y + h),
new PointF(x + w, y + h/2), new PointF(x + w/2 + dx, y), new PointF(x + w/2, y) });
// t
x += xoff;
paths.Add(new[] { new PointF(x + w/2, y - h/3), new PointF(x + w/2, y + h), new PointF(x + w, y + h*.7f) });
paths.Add(new[] { new PointF(x, y), new PointF(x + w, y) });
// a
x += xoff;
paths.Add(new[] { new PointF(x + w, y + dy), new PointF(x + w/2, y), new PointF(x, y + h/2), new PointF(x + w/2, y + h),
new PointF(x + w, y + dy), new PointF(x + w, y), new PointF(x + w, y + h), new PointF(x + w + dx2, y + h*.7f) });
// t
x += xoff;
paths.Add(new[] { new PointF(x + w/2, y - h/3), new PointF(x + w/2, y + h), new PointF(x + w, y + h*.7f) });
paths.Add(new[] { new PointF(x, y), new PointF(x + w, y) });
// i
x += xoff;
paths.Add(new[] { new PointF(x + w/2, y), new PointF(x + w/2, y + h), new PointF(x + w, y + h*.7f) });
paths.Add(new[] { new PointF(x + w/2 - dx, y - h/3 + dy), new PointF(x + w/2 + dx, y - h/3) });
// o
x += xoff;
paths.Add(new[] { new PointF(x + w/2, y), new PointF(x + w/2 - dx, y), new PointF(x, y + h/2),
new PointF(x + w/2, y + h), new PointF(x + w, y + h/2), new PointF(x + w/2 + dx, y), new PointF(x + w/2, y) });
// n
x += xoff;
paths.Add(new[] { new PointF(x, y), new PointF(x, y + h), new PointF(x, y + h - dy), new PointF(x + w*0.7f, y),
new PointF(x + w - dx/2, y + h*.6f), new PointF(x + w, y + h), new PointF(x + w + dx2, y + h*.7f),
new PointF(x + w*3, y + h*.4f), new PointF(x + w + dx2, y + h + dy*2), new PointF(x0, y + h + dy)} );
inkAnnot.Paths = paths;
page.Annotations.Add(inkAnnot);
// 完毕:
doc.Save(stream);
return doc.Pages.Count;
}
}
}