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DesktopStartup holds the WinForms main window's start-up steps in its order for the Avalonia app: first the one-time conversion of the legacy nest template into the nest defaults file, then whether Tools > Options > Create a new nest on startup asks for a new nest. Run reads the shared user settings but never writes them, so it can run off the UI thread; it reports whether to clear NestTemplatePath, and ClearTemplateSetting empties that setting alone on the caller's (UI) thread, as the window's other settings writers run there.
49 lines
2.6 KiB
C#
49 lines
2.6 KiB
C#
using OpenNest.BestFit;
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using OpenNest.Data;
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namespace OpenNest.Desktop;
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/// <summary>What the desktop app's start-up steps found.</summary>
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/// <param name="TemplateWarning">Why the legacy nest template could not be converted, to show
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/// the user; null when there was nothing to report.</param>
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/// <param name="ClearTemplateSetting">The template was converted or is gone: clear its setting
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/// (<see cref="DesktopStartup.ClearTemplateSetting"/>) so it is never consulted again.</param>
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/// <param name="CreateNewNest">Open a new nest, as Tools > Options > Create a new nest on
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/// startup asks; the window adds none beside nests already open.</param>
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public sealed record DesktopStartupResult(
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string TemplateWarning, bool ClearTemplateSetting, bool CreateNewNest);
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/// <summary>
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/// The desktop app's start-up steps, in the WinForms main window's order: first the one-time
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/// conversion of the legacy nest template into the nest defaults file (a new nest reads that
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/// file), then whether to open a new nest.
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/// </summary>
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public static class DesktopStartup
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{
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/// <summary>
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/// Converts the legacy nest template and decides on the new nest. Reads the user settings
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/// but never writes them, so it can run off the UI thread while the window's own settings
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/// writers run on it; the caller clears the setting on the UI thread when asked to.
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/// </summary>
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/// <param name="settingsPath">The shared user settings file.</param>
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/// <param name="defaultsPath">The nest defaults file the template converts into.</param>
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/// <param name="bestFitStore">Best-fit cache the template's drawings read from.</param>
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public static DesktopStartupResult Run(
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string settingsPath, string defaultsPath, IBestFitStore bestFitStore)
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{
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var settings = UserSettingsFile.Read(settingsPath);
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settings.TryGetValue(NestTemplateMigration.SettingName, out var templatePath);
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var migration = NestTemplateMigration.Run(templatePath, defaultsPath, bestFitStore);
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return new DesktopStartupResult(migration.Warning, migration.ClearSetting,
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DesktopOptions.Read(settings).CreateNewNestOnOpen);
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}
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/// <summary>
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/// Clears the template setting to the empty text WinForms stores, keeping every other
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/// setting. Returns false when the file could not be written; the next start then finds
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/// the defaults file already there and clears it again.
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/// </summary>
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public static bool ClearTemplateSetting(string settingsPath) =>
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UserSettingsFile.Update(settingsPath, s => s[NestTemplateMigration.SettingName] = "");
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}
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