Files
riojoy/src/RioJoy.Tray/WallpaperApplier.cs
T
CydandClaude Opus 4.8 8d2d0b71aa Phase 7: cockpit overlay generator, region extraction, and profile editor
Overlay generator (pure, tested) — RioJoy.Core/Overlay:
- FontFitter ports the legacy calc-fontsize auto-fit search (validated against a
  brute-force oracle); OverlayLayoutEngine ports create-data-layer's fit + h/v
  justification and adds per-region 90 deg CCW rotation; OverlayTemplate/Region +
  OverlayTemplateStore hold cell geometry/colour/rotation (regions.json).
- GoobieDataImporter parses the legacy .data label sheet into label rows.
- src/RioJoy.Overlay: SkiaSharp rasterizer (SkiaTextMeasurer shared with the engine
  so measured layout == drawn output; SkiaOverlayRenderer -> PNG;
  ProfileWallpaperGenerator). Verified end-to-end on the real cockpit art
  (regions.json + riojoy.png + TEST.data) by OverlayRenderIntegrationTests.
- RioJoy.Tray/WallpaperApplier applies via SystemParametersInfo; RioCoordinator
  generates+applies on profile activation (opt-in via AppConfig.OverlayTemplatePath).

Region geometry — tools/XcfRegionExtract parses riojoy.xcf (a GIMP-format binary
reader, no GIMP needed) into the 119-cell regions.json: per-layer offsets/size/
font/colour, with 90 deg CCW rotation on a-00 + b-10..b-1F. Base image riojoy.png.
NOTE: the wallpaper positions are a VGA chroma-split display artifact (6 displays),
not the cockpit's logical layout.

Mapping editor (first cut) — RioJoy.Tray/Editor/ProfileEditorForm renders the
config sheet's logical grid (SheetLayout parses the sheet CSV export). The iRIO
word is edited via ButtonBinding <-> RioMapEntry.Create (no hex bit-twiddling), with
a context-sensitive picker: keyboard keys by name (KeyCatalog VK names), joystick
Button N, hat direction, mouse/RIO-command enum names; modifiers only for keyboard.
Opened from the tray ("Edit profile..."). The sheet-grid layout is a starting point
that needs rework from a better-formatted source.

~220 xUnit tests green. Docs (PLAN.md, README) updated.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
2026-06-27 17:13:48 -05:00

43 lines
1.8 KiB
C#

using System.Runtime.InteropServices;
using System.Runtime.Versioning;
namespace RioJoy.Tray;
/// <summary>
/// Sets the Windows desktop wallpaper to a generated cockpit overlay
/// (Phase 7 — the modern replacement for manually setting the GIMP-exported
/// background). Wraps <c>SystemParametersInfo(SPI_SETDESKWALLPAPER)</c>.
///
/// <para>Windows requires a <strong>BMP</strong> file path for reliable results on
/// all versions; PNGs are accepted on modern Windows but not guaranteed, so callers
/// should hand this a path the overlay renderer wrote. Applying a wallpaper changes
/// a user-visible system setting, so it is only invoked on an explicit profile
/// activation, never speculatively.</para>
/// </summary>
[SupportedOSPlatform("windows")]
public static class WallpaperApplier
{
private const int SPI_SETDESKWALLPAPER = 0x0014;
private const int SPIF_UPDATEINIFILE = 0x01; // persist across logon
private const int SPIF_SENDCHANGE = 0x02; // broadcast WM_SETTINGCHANGE
/// <summary>
/// Apply <paramref name="imagePath"/> as the desktop wallpaper. Returns true on
/// success. Throws if the file does not exist.
/// </summary>
public static bool Apply(string imagePath)
{
ArgumentException.ThrowIfNullOrWhiteSpace(imagePath);
string full = Path.GetFullPath(imagePath);
if (!File.Exists(full))
throw new FileNotFoundException("Wallpaper image not found.", full);
return SystemParametersInfo(
SPI_SETDESKWALLPAPER, 0, full, SPIF_UPDATEINIFILE | SPIF_SENDCHANGE);
}
[DllImport("user32.dll", SetLastError = true, CharSet = CharSet.Unicode)]
[return: MarshalAs(UnmanagedType.Bool)]
private static extern bool SystemParametersInfo(int uAction, int uParam, string lpvParam, int fuWinIni);
}