public void ChangeGlyph(GlyphFontViewModel glyphFontViewModel, int glyphIndex)
{
if (glyphFontViewModel == null)
{
throw new ArgumentNullException(nameof(glyphFontViewModel));
}
if (!_glyphFontStore.GlyphFonts.Contains(glyphFontViewModel))
{
throw new Exception("Chosen GlyphFont is not known in the GlyphFontStore.");
}
if (!glyphFontViewModel.IsValid)
{
throw new Exception("Cannot use an invalid GlyphFont.");
}
if (glyphIndex >= glyphFontViewModel.GlyphCount)
{
throw new Exception($"GlyphFont has no glyph at index {glyphIndex}.");
}
if (glyphFontViewModel.Equals(_glyphFontViewModel) && _glyphIndex == glyphIndex)
{
return;
}
var @event = new GlyphChangedEvent(_glyphFontViewModel, glyphFontViewModel, _glyphIndex, glyphIndex);
_glyphFontViewModel = glyphFontViewModel;
_glyphIndex = glyphIndex;
MessageBus.Publish(@event);
}
public static Int32Rect GetGlyphCropRectangle(this GlyphFontViewModel glyphFontViewModel, int glyphIndex)
{
var x = glyphIndex % glyphFontViewModel.ColumnCount;
var y = glyphIndex / glyphFontViewModel.ColumnCount;
return(new Int32Rect(x * glyphFontViewModel.GlyphSize.X, y * glyphFontViewModel.GlyphSize.Y, glyphFontViewModel.GlyphSize.X, glyphFontViewModel.GlyphSize.Y));
}
public void ChangeGlyph(GlyphFontViewModel glyphFontViewModel)
{
if (glyphFontViewModel == null)
{
throw new ArgumentNullException(nameof(glyphFontViewModel));
}
ChangeGlyph(glyphFontViewModel, _glyphIndex >= _glyphFontViewModel.GlyphCount ? 0 : _glyphIndex);
}
public void DetectGlyphFonts()
{
GlyphFonts = new HashSet <GlyphFontViewModel>();
foreach (var file in Directory.GetFiles("Fonts", "*.png"))
{
var filename = Path.GetFullPath(file);
var match = FontFileRegex.Match(Path.GetFileNameWithoutExtension(filename));
if (match.Success)
{
try
{
var fontBitmap = BitmapUtils.LoadAndCleanGlyphFontBitmap(filename);
var width = int.Parse(match.Groups["width"].Value);
var height = int.Parse(match.Groups["height"].Value);
var fontName = match.Groups["name"].Value;
if (fontBitmap.PixelWidth / width != 16 || fontBitmap.PixelHeight / height != 16 ||
fontBitmap.PixelWidth % width != 0 || fontBitmap.PixelHeight % height != 0)
{
GlyphFonts.Add(GlyphFontViewModel.CreateInvalid(filename,
$"All fonts must fit exactly 16x16 characters: expected image of {16 * width}x{16 * height} but is {fontBitmap.PixelWidth}x{fontBitmap.PixelHeight}."));
}
else
{
var glyphFont = GlyphFontViewModel.Create(filename, fontName, new Point(width, height), fontBitmap);
GlyphFonts.Add(glyphFont);
}
}
catch (Exception e)
{
GlyphFonts.Add(GlyphFontViewModel.CreateInvalid(filename, "Could not load font from file: " + e.Message));
}
}
else
{
GlyphFonts.Add(GlyphFontViewModel.CreateInvalid(filename, "Filename must match pattern <name>_<charwidth>x<charheight>.png"));
}
}
MessageBus.Publish(new GlyphFontListLoadedEvent(GlyphFonts.ToArray()));
}
