GcLogoHtml.vb
- ''
- '' This code is part of Document Solutions for Imaging demos.
- '' Copyright (c) MESCIUS inc. All rights reserved.
- ''
- Imports System.IO
- Imports System.Drawing
- Imports System.Collections.Generic
- Imports System.Linq
- Imports GrapeCity.Documents.Drawing
- Imports GrapeCity.Documents.Text
- Imports GrapeCity.Documents.Imaging
- Imports GrapeCity.Documents.Html
- Imports GCTEXT = GrapeCity.Documents.Text
- Imports GCDRAW = GrapeCity.Documents.Drawing
-
- '' This sample uses the same code as in the HelloWorld sample
- '' to create an image with the "Hello, World!" text, but in addition
- '' adds company logo copied from the MESCIUS home page
- '' using DsHtml.
- ''
- '' Please see notes in comments at the top of HelloWorldHtml
- '' sample code for details on adding DsHtml to your projects.
- Public Class GcLogoHtml
- Function GenerateImage(
- ByVal pixelSize As Size,
- ByVal dpi As Single,
- ByVal opaque As Boolean,
- Optional ByVal sampleParams As String() = Nothing) As GcBitmap
-
- '' MESCIUS home page:
- Dim uri = New Uri("https://developer.mescius.com/")
- '' The coordinates of the logo on the home page:
- Dim logoRc = New RectangleF(5, 5, 350, 80)
-
- '' Create the "Hello, World!" image like in the HelloWorld sample:
- Dim blue = Color.FromArgb(&HFF2E4884)
- Dim bmp = New GcBitmap(pixelSize.Width, pixelSize.Height, True, dpi, dpi)
- Using g = bmp.CreateGraphics(blue)
- Dim rc = New RectangleF(0, 0, pixelSize.Width, pixelSize.Height)
- Dim b = New RadialGradientBrush(Color.White, blue, New PointF(0.5F, 0.5F), True)
- g.FillRectangle(rc, b)
- Dim tf = New TextFormat With
- {
- .Font = GCTEXT.Font.FromFile(Path.Combine("Resources", "Fonts", "timesbd.ttf")),
- .FontSize = 64,
- .ForeColor = Color.OrangeRed
- }
- g.DrawString("Hello, World!", tf, rc, TextAlignment.Center, ParagraphAlignment.Center, False)
-
- '' Copy and paste the logo from onto the image, scaled x2:
- Dim fmt = New HtmlToImageFormat(False, False) With
- {
- .Clip = logoRc,
- .Scale = 2
- }
- '' Create an instance of GcHtmlBrowser that is used to render HTML:
- Using browser = Util.NewHtmlBrowser()
- Dim s As SizeF
- g.DrawHtml(browser, uri, pixelSize.Width - logoRc.Width * fmt.Scale, 0, fmt, s)
- End Using
- End Using
- Return bmp
- End Function
- End Class
-