public IEnumerable <Word> GetSizedWords(IEnumerable <Word> words, PictureConfig pictureConfig)
{
var wordsList = words.ToList();
var maxWord = wordsList.OrderByDescending(w => w.Count).First();
var maxWordFontSize = GetMaxWordFontSize(maxWord, wordsList.Count, pictureConfig);
var fontSizeCoefficient = Math.Max(wordsList.Count / wordsCountCorrectionCoefficient, 1) * maxWordFontSize / maxWord.Count;
foreach (var word in wordsList)
{
var fontSize = word.Count * fontSizeCoefficient;
var size = SizeUtils.GetWordBasedSize(word.Value, pictureConfig.FontFamily, fontSize);
yield return(word.SetSize(size).SetFontSize(fontSize));
}
}
public void GetSizedWords_ShouldReturnScaledSize_OnBigPictureSize()
{
var expectedSizes = new List <Size>
{
SizeUtils.GetWordBasedSize(word1.Value, pictureConfig.FontFamily, word1MinFontSize * 14),
SizeUtils.GetWordBasedSize(word2.Value, pictureConfig.FontFamily, word2MinFontSize * 14),
SizeUtils.GetWordBasedSize(word3.Value, pictureConfig.FontFamily, word3MinFontSize * 14)
};
pictureConfig.Size = new Size(200, 100);
var result = wordSizeSetter.GetSizedWords(words, pictureConfig);
result.Select(w => w.WordRectangleSize).Should().BeEquivalentTo(expectedSizes);
}
private float GetMaxWordFontSize(Word mostFrequentWord, int wordsCount, PictureConfig pictureConfig)
{
var currentSize = SizeUtils.GetWordBasedSize(
mostFrequentWord.Value, pictureConfig.FontFamily, minFontSize);
if (!SizeUtils.CanFillSizeWithSizes(
pictureConfig.Size, currentSize, wordsCount))
{
throw new ArgumentException(
$"Picture size {pictureConfig.Size.Width}x{pictureConfig.Size.Height} is too small for this word set");
}
var currentFontSize = minFontSize;
while (SizeUtils.CanFillSizeWithSizes(pictureConfig.Size, currentSize, wordsCount) &&
2 * currentSize.Width < pictureConfig.Size.Width)
{
currentFontSize++;
currentSize =
SizeUtils.GetWordBasedSize(mostFrequentWord.Value, pictureConfig.FontFamily, currentFontSize);
}
return(currentFontSize - 1);
}