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Add color-key transparency support for logo overlays

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- Allow users to select a transparent color for logo images (watermarks) via UI (checkbox, color picker, preview).
- Apply color-key transparency in both System.Drawing and ImageSharp backends: specified color in logo is made fully transparent.
- Persist transparency settings in PicSettings and SettingsDto; bind to DataModel and UI controls.
- Update logo preview to reflect transparency in real time.
- Add option to select image processing library (System.Drawing or ImageSharp) in UI and settings.
- Fix bug in SettingsService parameter loading for int/double/DateTime.
- Fully integrate color-key transparency into image processing and settings serialization.
This commit is contained in:
MaddoScientisto 2026-02-15 11:13:23 +01:00
commit 8872080741
9 changed files with 732 additions and 168 deletions
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6
imagecatalog/Services/SettingsService.cs
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@ -85,15 +85,15 @@ namespace ImageCatalog_2.Services
}
else if (prop.PropertyType == typeof(int))
{
value = _parametriSetup.LeggiParametro<int>(xmlName, (int)(prop.GetValue(loadedDto) ?? 0));
value = fileParams.LeggiParametro<int>(xmlName, (int)(prop.GetValue(loadedDto) ?? 0));
}
else if (prop.PropertyType == typeof(double))
{
value = _parametriSetup.LeggiParametro<double>(xmlName, (double)(prop.GetValue(loadedDto) ?? 0.0));
value = fileParams.LeggiParametro<double>(xmlName, (double)(prop.GetValue(loadedDto) ?? 0.0));
}
else if (prop.PropertyType == typeof(DateTime))
{
var strValue = _parametriSetup.LeggiParametroString(xmlName);
var strValue = fileParams.LeggiParametroString(xmlName);
if (DateTime.TryParse(strValue, out var dateValue))
{
value = dateValue;