systeemvak + icoon grootte

tools/make-tray-icon.ps1

@@ -0,0 +1,72 @@
+# Maakt src/Kniip/TrayIcon.ico uit de 256px-afbeelding in AppIcon.ico. Het systeemvak tekent op 16px;
+# daar zijn de snijlijnen en de zwarte rand op een donkere taakbalk onzichtbaar en lijkt het icoon klein.
+# Dit snijdt alleen het fotokader uit, zodat dat het hele vak vult. Opnieuw draaien als AppIcon.ico wijzigt.
+
+$ErrorActionPreference = 'Stop'
+Add-Type -AssemblyName System.Drawing
+
+$root = Split-Path -Parent $PSScriptRoot
+$source = Join-Path $root 'src\Kniip\AppIcon.ico'
+$target = Join-Path $root 'src\Kniip\TrayIcon.ico'
+
+# Kader in de 256px-afbeelding, inclusief de zwarte rand.
+$crop = New-Object System.Drawing.Rectangle 42, 42, 172, 172
+$sizes = 16, 20, 24, 32, 40, 48, 64
+
+function Get-IcoPng([byte[]]$ico, [int]$size) {
+    $count = [BitConverter]::ToUInt16($ico, 4)
+    for ($i = 0; $i -lt $count; $i++) {
+        $entry = 6 + $i * 16
+        $width = if ($ico[$entry] -eq 0) { 256 } else { $ico[$entry] }
+        if ($width -eq $size) {
+            $length = [BitConverter]::ToUInt32($ico, $entry + 8)
+            $offset = [BitConverter]::ToUInt32($ico, $entry + 12)
+            $data = New-Object byte[] $length
+            [Array]::Copy($ico, $offset, $data, 0, $length)
+            return $data
+        }
+    }
+    throw "Geen ${size}px-afbeelding in $source"
+}
+
+$png = Get-IcoPng ([IO.File]::ReadAllBytes($source)) 256
+$master = [System.Drawing.Bitmap]::FromStream((New-Object IO.MemoryStream (, $png)))
+
+$images = foreach ($size in $sizes) {
+    $bitmap = New-Object System.Drawing.Bitmap $size, $size, ([System.Drawing.Imaging.PixelFormat]::Format32bppArgb)
+    $g = [System.Drawing.Graphics]::FromImage($bitmap)
+    $g.InterpolationMode = [System.Drawing.Drawing2D.InterpolationMode]::HighQualityBicubic
+    $g.PixelOffsetMode = [System.Drawing.Drawing2D.PixelOffsetMode]::HighQuality
+    $g.CompositingQuality = [System.Drawing.Drawing2D.CompositingQuality]::HighQuality
+    $g.DrawImage($master, (New-Object System.Drawing.Rectangle 0, 0, $size, $size), $crop, [System.Drawing.GraphicsUnit]::Pixel)
+    $g.Dispose()
+    $stream = New-Object IO.MemoryStream
+    $bitmap.Save($stream, [System.Drawing.Imaging.ImageFormat]::Png)
+    $bitmap.Dispose()
+    , $stream.ToArray()
+}
+$master.Dispose()
+
+$out = New-Object IO.MemoryStream
+$writer = New-Object IO.BinaryWriter $out
+$writer.Write([UInt16]0)
+$writer.Write([UInt16]1)
+$writer.Write([UInt16]$sizes.Count)
+$offset = 6 + 16 * $sizes.Count
+for ($i = 0; $i -lt $sizes.Count; $i++) {
+    $writer.Write([byte]$sizes[$i])
+    $writer.Write([byte]$sizes[$i])
+    $writer.Write([byte]0)
+    $writer.Write([byte]0)
+    $writer.Write([UInt16]1)
+    $writer.Write([UInt16]32)
+    $writer.Write([UInt32]$images[$i].Length)
+    $writer.Write([UInt32]$offset)
+    $offset += $images[$i].Length
+}
+foreach ($image in $images) {
+    $writer.Write($image)
+}
+$writer.Flush()
+[IO.File]::WriteAllBytes($target, $out.ToArray())
+Write-Host "Geschreven: $target"