/// <summary>
/// Reads a theme definition from JSON.
/// </summary>
/// <param name="json">The JSON to parse.</param>
/// <returns>A theme to render a graph with.</returns>
public IGraphTheme ReadFromJson(string json)
{
if (json.IsNullOrWhiteSpace())
{
throw new ArgumentNullException(nameof(json));
}
var defaultTheme = new DefaultTheme();
var dto = JsonSerializer.Deserialize <GraphThemeDto>(json, GetSerializerSettings());
return(new GraphThemeBuilder
{
BackgroundColor = dto.BackgroundColor ?? defaultTheme.BackgroundColor,
EdgeColor = dto.EdgeColor ?? defaultTheme.EdgeColor,
TableForegroundColor = dto.TableForegroundColor ?? defaultTheme.TableForegroundColor,
HeaderForegroundColor = dto.HeaderForegroundColor ?? defaultTheme.HeaderForegroundColor,
FooterForegroundColor = dto.FooterForegroundColor ?? defaultTheme.FooterForegroundColor,
PrimaryKeyHeaderForegroundColor = dto.PrimaryKeyHeaderForegroundColor ?? defaultTheme.PrimaryKeyHeaderForegroundColor,
UniqueKeyHeaderForegroundColor = dto.UniqueKeyHeaderForegroundColor ?? defaultTheme.UniqueKeyHeaderForegroundColor,
ForeignKeyHeaderForegroundColor = dto.ForeignKeyHeaderForegroundColor ?? defaultTheme.ForeignKeyHeaderForegroundColor,
HighlightedTableForegroundColor = dto.HighlightedTableForegroundColor ?? defaultTheme.HighlightedTableForegroundColor,
HighlightedHeaderForegroundColor = dto.HighlightedHeaderForegroundColor ?? defaultTheme.HighlightedHeaderForegroundColor,
HighlightedFooterForegroundColor = dto.HighlightedFooterForegroundColor ?? defaultTheme.HighlightedFooterForegroundColor,
HighlightedPrimaryKeyHeaderForegroundColor = dto.HighlightedPrimaryKeyHeaderForegroundColor ?? defaultTheme.HighlightedPrimaryKeyHeaderForegroundColor,
HighlightedUniqueKeyHeaderForegroundColor = dto.HighlightedUniqueKeyHeaderForegroundColor ?? defaultTheme.HighlightedUniqueKeyHeaderForegroundColor,
HighlightedForeignKeyHeaderForegroundColor = dto.HighlightedForeignKeyHeaderForegroundColor ?? defaultTheme.HighlightedForeignKeyHeaderForegroundColor,
TableBackgroundColor = dto.TableBackgroundColor ?? defaultTheme.TableBackgroundColor,
HeaderBackgroundColor = dto.HeaderBackgroundColor ?? defaultTheme.HeaderBackgroundColor,
FooterBackgroundColor = dto.FooterBackgroundColor ?? defaultTheme.FooterBackgroundColor,
PrimaryKeyHeaderBackgroundColor = dto.PrimaryKeyHeaderBackgroundColor ?? defaultTheme.PrimaryKeyHeaderBackgroundColor,
UniqueKeyHeaderBackgroundColor = dto.UniqueKeyHeaderBackgroundColor ?? defaultTheme.UniqueKeyHeaderBackgroundColor,
ForeignKeyHeaderBackgroundColor = dto.ForeignKeyHeaderBackgroundColor ?? defaultTheme.ForeignKeyHeaderBackgroundColor,
HighlightedTableBackgroundColor = dto.HighlightedTableBackgroundColor ?? defaultTheme.HighlightedTableBackgroundColor,
HighlightedHeaderBackgroundColor = dto.HighlightedHeaderBackgroundColor ?? defaultTheme.HighlightedHeaderBackgroundColor,
HighlightedFooterBackgroundColor = dto.HighlightedFooterBackgroundColor ?? defaultTheme.HighlightedFooterBackgroundColor,
HighlightedPrimaryKeyHeaderBackgroundColor = dto.HighlightedPrimaryKeyHeaderBackgroundColor ?? defaultTheme.HighlightedPrimaryKeyHeaderBackgroundColor,
HighlightedUniqueKeyHeaderBackgroundColor = dto.HighlightedUniqueKeyHeaderBackgroundColor ?? defaultTheme.HighlightedUniqueKeyHeaderBackgroundColor,
HighlightedForeignKeyHeaderBackgroundColor = dto.HighlightedForeignKeyHeaderBackgroundColor ?? defaultTheme.HighlightedForeignKeyHeaderBackgroundColor,
TableBorderColor = dto.TableBorderColor ?? defaultTheme.TableBorderColor,
HeaderBorderColor = dto.HeaderBorderColor ?? defaultTheme.HeaderBorderColor,
FooterBorderColor = dto.FooterBorderColor ?? defaultTheme.FooterBorderColor,
PrimaryKeyHeaderBorderColor = dto.PrimaryKeyHeaderBorderColor ?? defaultTheme.PrimaryKeyHeaderBorderColor,
UniqueKeyHeaderBorderColor = dto.UniqueKeyHeaderBorderColor ?? defaultTheme.UniqueKeyHeaderBorderColor,
ForeignKeyHeaderBorderColor = dto.ForeignKeyHeaderBorderColor ?? defaultTheme.ForeignKeyHeaderBorderColor,
HighlightedTableBorderColor = dto.HighlightedTableBorderColor ?? defaultTheme.HighlightedTableBorderColor,
HighlightedHeaderBorderColor = dto.HighlightedHeaderBorderColor ?? defaultTheme.HighlightedHeaderBorderColor,
HighlightedFooterBorderColor = dto.HighlightedFooterBorderColor ?? defaultTheme.HighlightedFooterBorderColor,
HighlightedPrimaryKeyHeaderBorderColor = dto.HighlightedPrimaryKeyHeaderBorderColor ?? defaultTheme.HighlightedPrimaryKeyHeaderBorderColor,
HighlightedUniqueKeyHeaderBorderColor = dto.HighlightedUniqueKeyHeaderBorderColor ?? defaultTheme.HighlightedUniqueKeyHeaderBorderColor,
HighlightedForeignKeyHeaderBorderColor = dto.HighlightedForeignKeyHeaderBorderColor ?? defaultTheme.HighlightedForeignKeyHeaderBorderColor
});
}
/// <summary>
/// Attempts to read a JSON description of a theme. Returns the default theme if this was unsuccessful.
/// </summary>
/// <param name="json">A JSON theme definition.</param>
/// <param name="theme">The resulting theme when parsed, the default theme otherwise.</param>
/// <returns><c>true</c> if a theme was parsed successfully, <c>false</c> otherwise.</returns>
public bool TryReadFromJson(string json, out IGraphTheme theme)
{
try
{
theme = ReadFromJson(json);
return(true);
}
catch
{
theme = new DefaultTheme();
return(false);
}
}