TimeSheetForm.vb
'' 完毕：
Imports System.IO
Imports System.Drawing
Imports GrapeCity.Documents.Pdf
Imports GrapeCity.Documents.Pdf.AcroForms
Imports GrapeCity.Documents.Text
Imports GrapeCity.Documents.Common
Imports GrapeCity.Documents.Drawing
Imports GCTEXT = GrapeCity.Documents.Text
Imports GCDRAW = GrapeCity.Documents.Drawing
'' 该示例生成一个表示时间表的 PDF AcroForm。
'' 相同的代码用于在TimeSheet用例示例中生成时间表。
Public Class TimeSheetForm
'' 字体集合来保存我们需要的字体：
Private _fc As FontCollection = New FontCollection()
'' 展平文档时用于呈现输入字段的文本布局：
Private _inputTl As TextLayout = New TextLayout(72)
'' 用于输入字段的文本格式：
Private _inputFont As GCTEXT.Font = FontCollection.SystemFonts.FindFamilyName("Segoe UI", True)
Private _inputFontSize As Single = 12
'' 输入字段边距：
Private _inputMargin As Single = 5
'' 员工签名空间：
Private _empSignRect As RectangleF
'' 徽标（我们应该在保存文档后处理它）：
Private _logo As GCDRAW.Image
'' 该示例的主要入口点：
Function CreatePDF(ByVal stream As Stream) As Integer
'' 使用我们需要的字体设置字体集合：
_fc.RegisterDirectory(Path.Combine("Resources", "Fonts"))
'' 在输入字段的文本布局上设置该字体集合
'' （我们还将在我们将使用的所有文本布局上设置它）：
_inputTl.FontCollection = _fc
'' 设置输入字段的布局和格式：
_inputTl.ParagraphAlignment = ParagraphAlignment.Center
'' 创建时间表输入表单
'' （在现实生活中，我们可能只会创建一次，
'' 然后重新使用 PDF 表单）：
Dim doc = MakeTimeSheetForm()
'' 保存 PDF：
doc.Save(stream)
'' 文档中使用的图像只能在保存 PDF 后处理：
_logo.Dispose()
'' 完毕：
Return doc.Pages.Count
End Function
'' 数据字段名称：
Private Structure _Names
Shared ReadOnly Dows As String() = {
"Sun", "Mon", "Tue", "Wed", "Thu", "Fri", "Sat"
}
Const EmpName = "empName"
Const EmpTitle = "empTitle"
Const EmpNum = "empNum"
Const EmpStatus = "empStatus"
Const EmpDep = "empDep"
Const EmpSuper = "empSuper"
Shared ReadOnly DtNames = New Dictionary(Of String, String()) From {
{"Sun", New String() {"dtSun", "tSunStart", "tSunEnd", "tSunReg", "tSunOvr", "tSunTotal"}},
{"Mon", New String() {"dtMon", "tMonStart", "tMonEnd", "tMonReg", "tMonOvr", "tMonTotal"}},
{"Tue", New String() {"dtTue", "tTueStart", "tTueEnd", "tTueReg", "tTueOvr", "tTueTotal"}},
{"Wed", New String() {"dtWed", "tWedStart", "tWedEnd", "tWedReg", "tWedOvr", "tWedTotal"}},
{"Thu", New String() {"dtThu", "tThuStart", "tThuEnd", "tThuReg", "tThuOvr", "tThuTotal"}},
{"Fri", New String() {"dtFri", "tFriStart", "tFriEnd", "tFriReg", "tFriOvr", "tFriTotal"}},
{"Sat", New String() {"dtSat", "tSatStart", "tSatEnd", "tSatReg", "tSatOvr", "tSatTotal"}}
}
Const TotalReg = "totReg"
Const TotalOvr = "totOvr"
Const TotalHours = "totHours"
Const EmpSign = "empSign"
Const EmpSignDate = "empSignDate"
Const SupSign = "supSign"
Const SupSignDate = "supSignDate"
End Structure
'' 创建考勤表表单：
Private Function MakeTimeSheetForm() As GcPdfDocument
Const marginH = 72.0F, marginV = 48.0F
Dim doc = New GcPdfDocument()
Dim page = doc.NewPage()
Dim g = page.Graphics
Dim ip = New PointF(marginH, marginV)
Dim tl = New TextLayout(g.Resolution) With {.FontCollection = _fc}
tl.Append("TIME SHEET", New TextFormat() With {.FontName = "Segoe UI", .FontSize = 18})
tl.PerformLayout(True)
g.DrawTextLayout(tl, ip)
ip.Y += tl.ContentHeight + 15
_logo = GCDRAW.Image.FromFile(Path.Combine("Resources", "ImagesBis", "AcmeLogo-vertical-250px.png"))
Dim s = New SizeF(250.0F * 0.75F, 64.0F * 0.75F)
g.DrawImage(_logo, New RectangleF(ip, s), Nothing, ImageAlign.Default)
ip.Y += s.Height + 5
tl.Clear()
tl.Append("Where Business meets Technology",
New TextFormat() With {.FontName = "Segoe UI", .FontItalic = True, .FontSize = 10})
tl.PerformLayout(True)
g.DrawTextLayout(tl, ip)
ip.Y += tl.ContentHeight + 15
tl.Clear()
tl.Append($"1901, Halford Avenue,{vbCrLf}Santa Clara, California – 95051-2553,{vbCrLf}United States",
New TextFormat() With {.FontName = "Segoe UI", .FontSize = 9})
tl.MaxWidth = page.Size.Width - marginH * 2
tl.TextAlignment = TextAlignment.Trailing
tl.PerformLayout(True)
g.DrawTextLayout(tl, ip)
ip.Y += tl.ContentHeight + 25
Dim pen = New GCDRAW.Pen(Color.Gray, 0.5F)
Dim colw = (page.Size.Width - marginH * 2) / 2
Dim fields1 = DrawTable(ip,
New Single() {colw, colw},
New Single() {30, 30, 30},
g, pen)
Dim tf = New TextFormat() With {.FontName = "Segoe UI", .FontSize = 9}
With tl
.ParagraphAlignment = ParagraphAlignment.Center
.TextAlignment = TextAlignment.Leading
.MarginLeft = 4
.MarginRight = 4
.MarginTop = 4
.MarginBottom = 4
End With
'' t_ - 标题
'' b_ - 范围
'' f_ - 字段名称，null表示没有字段
Dim drawField As Action(Of String, RectangleF, String) =
Sub(t_, b_, f_)
Dim tWidth As Single
If Not String.IsNullOrEmpty(t_) Then
tl.Clear()
tl.MaxHeight = b_.Height
tl.MaxWidth = b_.Width
tl.Append(t_, tf)
tl.PerformLayout(True)
g.DrawTextLayout(tl, b_.Location)
tWidth = tl.ContentRectangle.Right
Else
tWidth = 0
End If
If Not String.IsNullOrEmpty(f_) Then
Dim fld = New TextField() With {.Name = f_}
fld.Widget.Page = page
fld.Widget.Rect = New RectangleF(
b_.X + tWidth + _inputMargin, b_.Y + _inputMargin,
b_.Width - tWidth - _inputMargin * 2, b_.Height - _inputMargin * 2)
fld.Widget.DefaultAppearance.Font = _inputFont
fld.Widget.DefaultAppearance.FontSize = _inputFontSize
fld.Widget.Border.Color = Color.LightSlateGray
fld.Widget.Border.Width = 0.5F
doc.AcroForm.Fields.Add(fld)
End If
End Sub
drawField("EMPLOYEE NAME: ", fields1(0, 0), _Names.EmpName)
drawField("TITLE: ", fields1(1, 0), _Names.EmpTitle)
drawField("EMPLOYEE NUMBER: ", fields1(0, 1), _Names.EmpNum)
drawField("STATUS: ", fields1(1, 1), _Names.EmpStatus)
drawField("DEPARTMENT: ", fields1(0, 2), _Names.EmpDep)
drawField("SUPERVISOR: ", fields1(1, 2), _Names.EmpSuper)
ip.Y = fields1(0, 2).Bottom
Dim col0 = 100.0F
colw = (page.Size.Width - marginH * 2 - col0) / 5
Dim rowh = 25.0F
Dim fields2 = DrawTable(ip,
New Single() {col0, colw, colw, colw, colw, colw},
New Single() {50, rowh, rowh, rowh, rowh, rowh, rowh, rowh, rowh},
g, pen)
tl.ParagraphAlignment = ParagraphAlignment.Far
drawField("DATE", fields2(0, 0), Nothing)
drawField("START TIME", fields2(1, 0), Nothing)
drawField("END TIME", fields2(2, 0), Nothing)
drawField("REGULAR HOURS", fields2(3, 0), Nothing)
drawField("OVERTIME HOURS", fields2(4, 0), Nothing)
tf.FontBold = True
drawField("TOTAL HOURS", fields2(5, 0), Nothing)
tf.FontBold = False
tl.ParagraphAlignment = ParagraphAlignment.Center
tf.ForeColor = Color.Gray
For i = 0 To 6
drawField(_Names.Dows(i), fields2(0, i + 1), _Names.DtNames(_Names.Dows(i))(0))
Next
'' 垂直对齐日期字段（补偿不同的 DOW 宽度）：
Dim dowFields = doc.AcroForm.Fields.TakeLast(7)
Dim minW = dowFields.Min(Function(f_) CType(f_, TextField).Widget.Rect.Width)
dowFields.ToList().ForEach(
Sub(f_)
Dim r_ = CType(f_, TextField).Widget.Rect
r_.Offset(r_.Width - minW, 0)
r_.Width = minW
CType(f_, TextField).Widget.Rect = r_
End Sub
)
tf.ForeColor = Color.Black
For row = 1 To 7
For col = 1 To 5
drawField(Nothing, fields2(col, row), _Names.DtNames(_Names.Dows(row - 1))(col))
Next
Next
tf.FontBold = True
drawField("WEEKLY TOTALS", fields2(0, 8), Nothing)
tf.FontBold = False
drawField(Nothing, fields2(3, 8), _Names.TotalReg)
drawField(Nothing, fields2(4, 8), _Names.TotalOvr)
drawField(Nothing, fields2(5, 8), _Names.TotalHours)
ip.Y = fields2(0, 8).Bottom
col0 = 72 * 4
colw = page.Size.Width - marginH * 2 - col0
Dim fields3 = DrawTable(ip,
New Single() {col0, colw},
New Single() {rowh + 10, rowh, rowh},
g, pen)
drawField("EMPLOYEE SIGNATURE: ", fields3(0, 1), Nothing)
Dim r = fields3(0, 1)
_empSignRect = New RectangleF(r.X + r.Width / 2, r.Y, r.Width / 2 - _inputMargin * 2, r.Height)
Dim sfEmp = New SignatureField()
sfEmp.Name = _Names.EmpSign
sfEmp.Widget.Rect = New RectangleF(r.X + r.Width / 2, r.Y + _inputMargin, r.Width / 2 - _inputMargin * 2, r.Height - _inputMargin * 2)
sfEmp.Widget.Page = page
sfEmp.Widget.BackColor = Color.LightSeaGreen
doc.AcroForm.Fields.Add(sfEmp)
drawField("DATE: ", fields3(1, 1), _Names.EmpSignDate)
drawField("SUPERVISOR SIGNATURE: ", fields3(0, 2), Nothing)
r = fields3(0, 2)
Dim sfSup = New SignatureField()
sfSup.Name = _Names.SupSign
sfSup.Widget.Rect = New RectangleF(r.X + r.Width / 2, r.Y + _inputMargin, r.Width / 2 - _inputMargin * 2, r.Height - _inputMargin * 2)
sfSup.Widget.Page = page
sfSup.Widget.BackColor = Color.LightYellow
doc.AcroForm.Fields.Add(sfSup)
drawField("DATE: ", fields3(1, 2), _Names.SupSignDate)
'' 完毕：
Return doc
End Function
'' 简单的表格绘制方法。返回表格单元格矩形数组。
Private Function DrawTable(ByVal loc As PointF, ByVal widths As Single(), ByVal heights As Single(), ByVal g As GcGraphics, ByVal p As GCDRAW.Pen) As RectangleF(,)
If widths.Length = 0 OrElse heights.Length = 0 Then
Throw New Exception("Table must have some columns and rows.")
End If
Dim cells(widths.Length, heights.Length) As RectangleF
Dim r = New RectangleF(loc, New SizeF(widths.Sum(), heights.Sum()))
'' 绘制左边框（第一个除外）：
Dim x = loc.X
For i = 0 To widths.Length - 1
For j = 0 To heights.Length - 1
cells(i, j).X = x
cells(i, j).Width = widths(i)
Next
If (i > 0) Then
g.DrawLine(x, r.Top, x, r.Bottom, p)
End If
x += widths(i)
Next
'' 绘制顶部边框（第一个除外）：
Dim y = loc.Y
For j = 0 To heights.Length - 1
For i = 0 To widths.Length - 1
cells(i, j).Y = y
cells(i, j).Height = heights(j)
Next
If (j > 0) Then
g.DrawLine(r.Left, y, r.Right, y, p)
End If
y += heights(j)
Next
'' 绘制外边框：
g.DrawRectangle(r, p)
'' 完毕：
Return cells
End Function
End Class