private void DynamicFontSizeApply(Graphics graphics)
{
var minFontSize = 0;
var maxFontSize = Height;
int fontSize = Height / 2;
while (minFontSize != maxFontSize)
{
var fontFamilyAttempt = new FontFamily(Font);
var fontAttempt = new Font(fontFamilyAttempt, fontSize, FontStyle);
var fontToolAttempt = new FontTool(graphics, fontAttempt, FontStyle, fontFamilyAttempt);
var measurement = fontToolAttempt.Measure(Content);
if (measurement.Width > Width || measurement.Height > Height)
{
maxFontSize = fontSize - 1;
}
else
{
minFontSize = fontSize;
}
fontSize = (int)(Math.Ceiling((decimal)(maxFontSize - minFontSize) / 2) + minFontSize);
}
var fontFamily = new FontFamily(Font);
var font = new Font(fontFamily, fontSize, FontStyle);
var fontTool = new FontTool(graphics, font, FontStyle, fontFamily);
var backgroundTool = new BackgroundTool(graphics, BackgroundColor, BackgroundBorderColor, BackgroundBorderThickness);
var textBlock = new TextBlock(Width, LineAlignment, WordAlignment, fontTool, backgroundTool);
textBlock.Add(new CharacterSequence(Content, Color, OutlineColor, OutlineThickness, fontTool), fontTool, backgroundTool);
Finalize(graphics, textBlock);
}
public CharacterSequence(string content, Color color, Color outlineColor, int outlineThickness, FontTool fontTool)
{
_content = content;
_fontTool = fontTool;
_primaryBrush = new SolidBrush(color);
_hasOutline = outlineColor.A != Color.Transparent.A && _outlineThickness > 0;
_outlineBrush = new SolidBrush(outlineColor);
_outlineThickness = outlineThickness;
var size = _fontTool.Measure(_content);
Width = size.Width;
Height = _fontTool.LineHeight;
}