252 lines
8.8 KiB
VB.net
252 lines
8.8 KiB
VB.net
#Region "Microsoft.VisualBasic::9b690cd5e7f1be5c84ee19be5d0532b1, Microsoft.VisualBasic.Core\Extensions\Image\GDI+\Graphics2D.vb"
|
||
|
||
' Author:
|
||
'
|
||
' asuka (amethyst.asuka@gcmodeller.org)
|
||
' xie (genetics@smrucc.org)
|
||
' xieguigang (xie.guigang@live.com)
|
||
'
|
||
' Copyright (c) 2018 GPL3 Licensed
|
||
'
|
||
'
|
||
' GNU GENERAL PUBLIC LICENSE (GPL3)
|
||
'
|
||
'
|
||
' This program is free software: you can redistribute it and/or modify
|
||
' it under the terms of the GNU General Public License as published by
|
||
' the Free Software Foundation, either version 3 of the License, or
|
||
' (at your option) any later version.
|
||
'
|
||
' This program is distributed in the hope that it will be useful,
|
||
' but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||
' MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||
' GNU General Public License for more details.
|
||
'
|
||
' You should have received a copy of the GNU General Public License
|
||
' along with this program. If not, see <http://www.gnu.org/licenses/>.
|
||
|
||
|
||
|
||
' /********************************************************************************/
|
||
|
||
' Summaries:
|
||
|
||
' Class Graphics2D
|
||
'
|
||
' Properties: Center, Height, ImageResource, Size, Width
|
||
'
|
||
' Constructor: (+3 Overloads) Sub New
|
||
'
|
||
' Function: CreateDevice, CreateObject, Open, (+2 Overloads) Save, ToString
|
||
'
|
||
' Sub: __save, DrawCircle
|
||
' Structure Context
|
||
'
|
||
' Function: Create
|
||
'
|
||
'
|
||
'
|
||
'
|
||
' /********************************************************************************/
|
||
|
||
#End Region
|
||
|
||
Imports System.Drawing
|
||
Imports System.Drawing.Imaging
|
||
Imports System.Reflection
|
||
Imports Microsoft.VisualBasic.Language
|
||
|
||
Namespace Imaging
|
||
|
||
''' <summary>
|
||
''' GDI+ device handle for encapsulates a GDI+ drawing surface.
|
||
''' (GDI+绘图设备句柄，这个对象其实是为了将gdi+绘图与图形模块的SVG绘图操作统一起来的)
|
||
''' </summary>
|
||
''' <remarks></remarks>
|
||
Public Class Graphics2D : Inherits GDICanvas
|
||
Implements IDisposable
|
||
|
||
''' <summary>
|
||
''' GDI+ device handle memory.(GDI+设备之中的图像数据)
|
||
''' </summary>
|
||
''' <remarks></remarks>
|
||
Public Property ImageResource As Image
|
||
Get
|
||
Return innerImage
|
||
End Get
|
||
Protected Friend Set(value As Image)
|
||
innerImage = value
|
||
|
||
If Not value Is Nothing Then
|
||
_Size = value.Size
|
||
_Center = New Point(Size.Width / 2, Size.Height / 2)
|
||
Else
|
||
_Size = Nothing
|
||
_Center = Nothing
|
||
End If
|
||
End Set
|
||
End Property
|
||
|
||
Dim innerImage As Image
|
||
|
||
Protected Sub New()
|
||
End Sub
|
||
|
||
Sub New(size As Size, fill As Color)
|
||
Dim base = size.CreateGDIDevice(fill)
|
||
|
||
Stroke = base.Stroke
|
||
Font = base.Font
|
||
ImageResource = base.ImageResource
|
||
Graphics = base.Graphics
|
||
End Sub
|
||
|
||
Sub New(context As Context)
|
||
Call Me.New(context.size, context.color.TranslateColor)
|
||
End Sub
|
||
|
||
''' <summary>
|
||
''' Can be serialize as a XML file node.
|
||
''' </summary>
|
||
Public Structure Context
|
||
Dim size As Size
|
||
Dim color$
|
||
|
||
Public Function Create() As Graphics2D
|
||
Return size.CreateGDIDevice(color.TranslateColor)
|
||
End Function
|
||
End Structure
|
||
|
||
Public ReadOnly Property Width As Integer
|
||
Get
|
||
Return Size.Width
|
||
End Get
|
||
End Property
|
||
|
||
Public ReadOnly Property Height As Integer
|
||
Get
|
||
Return Size.Height
|
||
End Get
|
||
End Property
|
||
|
||
''' <summary>
|
||
''' Gets the width and height, in pixels, of this <see cref="ImageResource"/>.(图像的大小)
|
||
''' </summary>
|
||
''' <returns>A <see cref="System.Drawing.Size"/> structure that represents the width and height, in pixels,
|
||
''' of this image.</returns>
|
||
Public Overrides ReadOnly Property Size As Size
|
||
|
||
''' <summary>
|
||
''' 在图象上面的中心的位置点
|
||
''' </summary>
|
||
''' <returns></returns>
|
||
Public ReadOnly Property Center As Point
|
||
|
||
''' <summary>
|
||
''' 将GDI+设备之中的图像数据保存到指定的文件路径之中，默认的图像文件的格式为PNG格式
|
||
''' </summary>
|
||
''' <param name="Path"></param>
|
||
''' <param name="Format">默认为png格式</param>
|
||
''' <returns></returns>
|
||
Public Overloads Function Save(path$, Optional Format As ImageFormats = ImageFormats.Png) As Boolean
|
||
Return Save(path, Format.GetFormat)
|
||
End Function
|
||
|
||
''' <summary>
|
||
''' 将GDI+设备之中的图像数据保存到指定的文件路径之中，默认的图像文件的格式为PNG格式
|
||
''' </summary>
|
||
''' <param name="Path"></param>
|
||
''' <param name="Format">默认为png格式</param>
|
||
''' <returns></returns>
|
||
Public Overloads Function Save(path$, Optional Format As ImageFormat = Nothing) As Boolean
|
||
Try
|
||
Call __save(path, Format Or Png)
|
||
Catch ex As Exception
|
||
Return App.LogException(ex, MethodBase.GetCurrentMethod.GetFullName)
|
||
End Try
|
||
|
||
Return True
|
||
End Function
|
||
|
||
Private Sub __save(path As String, format As ImageFormat)
|
||
Call path.ParentPath.MkDIR
|
||
Call ImageResource.Save(path, format)
|
||
End Sub
|
||
|
||
Public Overrides Function ToString() As String
|
||
Return Size.ToString
|
||
End Function
|
||
|
||
''' <summary>
|
||
'''
|
||
''' </summary>
|
||
''' <param name="r"></param>
|
||
''' <param name="filled">所填充的颜色</param>
|
||
''' <returns></returns>
|
||
Public Shared Function CreateDevice(r As Size, Optional filled As Color = Nothing) As Graphics2D
|
||
Return r.CreateGDIDevice(filled)
|
||
End Function
|
||
|
||
''' <summary>
|
||
''' Get the internal <see cref="ImageResource"/>
|
||
''' </summary>
|
||
''' <param name="g2D"></param>
|
||
''' <returns></returns>
|
||
Public Shared Narrowing Operator CType(g2D As Graphics2D) As Image
|
||
Return g2D.ImageResource
|
||
End Operator
|
||
|
||
Public Shared Widening Operator CType(img As Image) As Graphics2D
|
||
Dim g As Graphics = Graphics.FromImage(img)
|
||
Return CreateObject(g, res:=img)
|
||
End Operator
|
||
|
||
Public Shared Widening Operator CType(img As Bitmap) As Graphics2D
|
||
Dim g As Graphics = Graphics.FromImage(img)
|
||
Return CreateObject(g, img)
|
||
End Operator
|
||
|
||
''' <summary>
|
||
''' Internal create gdi device helper.(这个函数不会克隆原来的图像对象<paramref name="res"/>)
|
||
''' </summary>
|
||
''' <param name="g"></param>
|
||
''' <param name="res">绘图的基础图像对象</param>
|
||
''' <returns></returns>
|
||
Friend Shared Function CreateObject(g As Graphics, res As Image) As Graphics2D
|
||
With New Graphics2D With {
|
||
.ImageResource = res,
|
||
.g = g,
|
||
.Font = New Font(FontFace.MicrosoftYaHei, 12),
|
||
.Stroke = Pens.Black,
|
||
.InterpolationMode = Drawing2D.InterpolationMode.HighQualityBicubic,
|
||
.PixelOffsetMode = Drawing2D.PixelOffsetMode.HighQuality,
|
||
.CompositingQuality = Drawing2D.CompositingQuality.HighQuality,
|
||
.SmoothingMode = Drawing2D.SmoothingMode.HighQuality,
|
||
.TextRenderingHint = Drawing.Text.TextRenderingHint.SingleBitPerPixelGridFit
|
||
}
|
||
' .Clear(Color.Transparent)
|
||
Return .ByRef
|
||
End With
|
||
End Function
|
||
|
||
''' <summary>
|
||
''' Creates a new <see cref="System.Drawing.Graphics"/> from the specified <see cref="Image"/>.
|
||
''' </summary>
|
||
''' <param name="image">
|
||
''' <see cref="Image"/> from which to create the new System.Drawing.Graphics.
|
||
''' </param>
|
||
''' <returns>
|
||
''' This method returns a new <see cref="System.Drawing.Graphics"/> for the specified <see cref="Image"/>.
|
||
''' </returns>
|
||
Public Shared Function Open(image As Image) As Graphics2D
|
||
Dim g As Graphics = Graphics.FromImage(image)
|
||
Return Graphics2D.CreateObject(g, image)
|
||
End Function
|
||
|
||
Public Overrides Sub DrawCircle(center As PointF, fill As Color, stroke As Pen, radius As Single)
|
||
Call Me.DrawCircle(center, radius, New SolidBrush(fill))
|
||
Call Me.DrawCircle(center, radius, stroke, fill:=False)
|
||
End Sub
|
||
End Class
|
||
End Namespace
|