private static Bitmap DrawCaptionLine(Bitmap bmp, string caption, float fontsize, TextPosition where, bool localizable, Color fontColour)
{
// The upper 10/64 and lower 14/64 of the button are not considered drawing area
// so discount them when calculating the row position. This also knocks the centre down by 4/64.
using (Font font = AppController.GetButtonFont(fontsize, localizable))
using (Graphics g = Graphics.FromImage(bmp))
{
g.TextRenderingHint = TextRenderingHint.ClearTypeGridFit;
// Use width of actual string for left placement:
// This only takes tiny amount of time - 14ms for 10000 iterations..
SizeF stringSize = g.MeasureString(caption, font);
int left = (bmp.Width / 2) - (int)(stringSize.Width / 2);
int top = 0;
// Vertical centre justify within button and row:
switch (@where)
{
case TextPosition.Middle:
// Remove cast to int, get 'possible loss of fraction'. Oh well..
top = (int)(((bmp.Height - stringSize.Height) / 2) + (int)(bmp.Height / 28));
break;
case TextPosition.TextTop:
top = (int)(bmp.Height * 14F / 64F);
break;
case TextPosition.Bottom:
top = bmp.Height / 2;
break;
case TextPosition.SymbolTop:
top = (int)(bmp.Height * 8F / 64F);
break;
}
using (SolidBrush b = new SolidBrush(fontColour))
{
g.DrawString(caption, font, b, new Point(left, top));
}
}
return(bmp);
}
public static void SetFontSizes(float scale)
{
// See what font size fits the scaled-down button
float baseFontSize = 36F;
// Not using ButtonImages.GetButtonImage as that is where we were called from..
using (var font = AppController.GetButtonFont(baseFontSize, false))
using (var bmp = ButtonImages.ResizeBitmap(ButtonImages.GetBitmap(BlankButton.Blank), scale, false))
using (var g = Graphics.FromImage(bmp))
{
// Helps MeasureString. Can also pass StringFormat.GenericTypographic apparently ??
g.TextRenderingHint = TextRenderingHint.AntiAlias;
var characterWidth = (int)g.MeasureString(((char)77).ToString(CultureInfo.InvariantCulture), font).Width;
// Only use 90% of the bitmap's size to allow for the edges (especially at small sizes)
float ratio = (((0.9F * bmp.Height) / 2)) / characterWidth;
baseFontSize = (baseFontSize * ratio);
}
BaseFontSize = baseFontSize;
}
private static float GetMultiLineFontSize(Bitmap bmp, string caption, bool localizable, float fontsize)
{
string[] words = caption.Split();
// Ignore words in brackets as they won't be displayed.
string longestWord = words[0];
for (int i = 1; i < words.GetLength(0); i++)
{
string word = words[i];
if (word.StartsWith("(", StringComparison.Ordinal) && word.EndsWith(")", StringComparison.Ordinal))
{
continue;
}
if (word.Length > longestWord.Length)
{
longestWord = word;
}
}
using (Graphics g = Graphics.FromImage(bmp))
using (Font font = AppController.GetButtonFont(fontsize, localizable))
{
g.TextRenderingHint = TextRenderingHint.ClearTypeGridFit;
SizeF stringSize;
stringSize = g.MeasureString(longestWord, font);
if (stringSize.Width > (bmp.Width * 0.8F))
{
fontsize *= ((bmp.Width * 0.8F) / stringSize.Width);
}
}
return(fontsize);
}