''
'' This code is part of Document Solutions for Imaging demos.
'' Copyright (c) MESCIUS inc. All rights reserved.
''
Imports System.IO
Imports System.Drawing
Imports GrapeCity.Documents.Drawing
Imports GrapeCity.Documents.Text
Imports GrapeCity.Documents.Imaging
Imports GCTEXT = GrapeCity.Documents.Text
Imports GCDRAW = GrapeCity.Documents.Drawing

'' A simple program drawing the "Hello, World!" text
'' on a background filled with a radial gradient.
Public Class HelloWorld
    Function GenerateImage(
            ByVal pixelSize As Size,
            ByVal dpi As Single,
            ByVal opaque As Boolean,
            Optional ByVal sampleParams As String() = Nothing) As GcBitmap

        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)
        End Using
        ' Done
        Return bmp
    End Function
End Class