public TextSubtitle()
{
Style = new SubtitleStyle();
Captions = new List<SubCaption>();
}
public static ImageHolder CreateImage(SubCaption caption, SubtitleStyle style, int number, int videoWidth, int videoHeight, string baseFName)
{
_boldStyle = false;
_italicStyle = false;
_underlineStyle = false;
_strikeStyle = false;
ImageHolder result = new ImageHolder();
if (string.IsNullOrEmpty(baseFName))
{
return(new ImageHolder());
}
string basePath = Path.GetDirectoryName(baseFName);
string baseName = Path.GetFileNameWithoutExtension(baseFName);
if (string.IsNullOrEmpty(basePath) || string.IsNullOrEmpty(baseName))
{
return(new ImageHolder());
}
result.FileName = string.Format(AppSettings.CInfo, "{0}_{1:g}.png", Path.Combine(basePath, baseName), number);
SizeF imgSize = new SizeF();
FontStyle styleFontStyle = FontStyle.Regular;
if (style.Bold)
{
styleFontStyle = styleFontStyle | FontStyle.Bold;
}
if (style.Italic)
{
styleFontStyle = styleFontStyle | FontStyle.Italic;
}
Font styleFont = new Font(style.FontName, style.FontSize, styleFontStyle, GraphicsUnit.Point);
StringFormat stringFormat = new StringFormat();
List <SizeF> lineSizes = new List <SizeF>();
string rawText = Regex.Replace(caption.Text, "</*?(?:i|b)>", "", RegexOptions.Singleline | RegexOptions.Multiline);
string[] rawTextLines = rawText.Split(new[] { Environment.NewLine }, StringSplitOptions.None);
foreach (string rawTextLine in rawTextLines)
{
using (GraphicsPath rawLinePath = new GraphicsPath())
{
rawLinePath.AddString(rawTextLine, styleFont.FontFamily, (int)styleFontStyle,
styleFont.SizeInPoints, new PointF(), stringFormat);
lineSizes.Add(rawLinePath.GetBounds().Size);
}
}
string[] textLines = caption.Text.Split(new[] { Environment.NewLine }, StringSplitOptions.None);
float lastLineBreak = 0f;
foreach (SizeF lineSize in lineSizes)
{
imgSize.Height += lineSize.Height;
lastLineBreak = lineSize.Height / 3;
imgSize.Height += lastLineBreak;
if (lineSize.Width > imgSize.Width)
{
imgSize.Width = lineSize.Width;
}
}
imgSize.Height -= lastLineBreak;
if (imgSize.IsEmpty)
{
return(new ImageHolder());
}
stringFormat.SetMeasurableCharacterRanges(new[] { new CharacterRange(0, 1) });
RectangleF whiteSpace;
using (Image img = new Bitmap((int)imgSize.Width, (int)imgSize.Height, PixelFormat.Format32bppArgb))
{
using (Graphics g = Graphics.FromImage(img))
{
RectangleF origin = new RectangleF(new PointF(0f, 0f), imgSize);
Region[] regions2 = g.MeasureCharacterRanges(" .", styleFont, origin, stringFormat);
if (!regions2.Any())
{
return(new ImageHolder());
}
whiteSpace = regions2[0].GetBounds(g);
}
}
GraphicsPath wordpath = new GraphicsPath();
GraphicsPath wordPathShadow = new GraphicsPath();
int shadowOffset = style.Shadow;
RectangleF wStart = new RectangleF {
Y = 0, X = 0
};
RectangleF wStartShadow = wStart;
wStartShadow.Offset(shadowOffset, shadowOffset);
for (int i = 0; i < textLines.Length; i++)
{
string textLine = textLines[i];
SizeF lineSize = lineSizes[i];
wStart.Offset(imgSize.Width / 2 - lineSize.Width / 2, 0);
wStartShadow.Offset(imgSize.Width / 2 - lineSize.Width / 2, 0);
string[] words = textLine.Split(new[] { " " }, StringSplitOptions.RemoveEmptyEntries);
foreach (string word in words)
{
using (GraphicsPath singleWord = new GraphicsPath(),
singleWordShadow = new GraphicsPath())
{
string lWord;
FontStyle fontStyle = GetStyleFont(word, out lWord, styleFontStyle);
if (string.IsNullOrEmpty(lWord))
{
continue;
}
singleWord.AddString(lWord, styleFont.FontFamily, (int)fontStyle, styleFont.SizeInPoints,
wStart.Location, stringFormat);
singleWordShadow.AddString(lWord, styleFont.FontFamily, (int)fontStyle,
styleFont.SizeInPoints, wStartShadow.Location, stringFormat);
wordpath.AddPath(singleWord, false);
wordPathShadow.AddPath(singleWordShadow, false);
wStart.Offset(singleWord.GetBounds().Size.Width + whiteSpace.Size.Width, 0);
wStartShadow.Offset(singleWordShadow.GetBounds().Size.Width + whiteSpace.Size.Width, 0);
}
}
wStart.X = 0;
wStart.Offset(0, lineSize.Height + lineSize.Height / 3);
wStartShadow.X = shadowOffset;
wStartShadow.Offset(0, lineSize.Height + lineSize.Height / 3);
}
imgSize.Width = wordPathShadow.GetBounds().Right;
imgSize.Height = wordPathShadow.GetBounds().Bottom;
using (Image img = new Bitmap((int)imgSize.Width + style.MarginL + style.MarginR, (int)imgSize.Height + style.MarginV * 2, PixelFormat.Format32bppArgb))
{
using (Graphics g = Graphics.FromImage(img))
{
g.CompositingMode = CompositingMode.SourceOver;
g.CompositingQuality = CompositingQuality.HighQuality;
g.TextRenderingHint = TextRenderingHint.AntiAlias;
g.SmoothingMode = SmoothingMode.HighQuality;
g.PixelOffsetMode = PixelOffsetMode.HighQuality;
g.InterpolationMode = InterpolationMode.High;
Brush primBrush = new SolidBrush(style.PrimaryColor);
Brush shadowBrush = new SolidBrush(Color.FromArgb(64, style.BackColor));
Pen outPen = new Pen(style.OutlineColor)
{
Alignment = PenAlignment.Outset
};
if (style.BorderStyle == 1)
{
outPen.Width = style.Outline == 0 && style.Shadow > 0 ? 1 : style.Outline;
style.Outline = (int)outPen.Width;
}
g.FillRectangle(Brushes.Transparent, 0, 0, img.Width, img.Height);
// draw shadow
if (style.BorderStyle == 1 && style.Shadow > 0)
{
g.FillPath(shadowBrush, wordPathShadow);
}
g.FillPath(primBrush, wordpath);
// draw outline
if (style.BorderStyle == 1 && style.Outline > 0)
{
g.DrawPath(outPen, wordpath);
}
}
img.Save(result.FileName, ImageFormat.Png);
result.FileName = Path.GetFileName(result.FileName);
result.Height = img.Height;
result.Width = img.Width;
}
return(result);
}
public TextSubtitle()
{
Style = new SubtitleStyle();
Captions = new List <SubCaption>();
}
public static ImageHolder CreateImage(SubCaption caption, SubtitleStyle style, int number, int videoWidth, int videoHeight, string baseFName)
{
_boldStyle = false;
_italicStyle = false;
_underlineStyle = false;
_strikeStyle = false;
ImageHolder result = new ImageHolder();
if (string.IsNullOrEmpty(baseFName)) return new ImageHolder();
string basePath = Path.GetDirectoryName(baseFName);
string baseName = Path.GetFileNameWithoutExtension(baseFName);
if (string.IsNullOrEmpty(basePath) || string.IsNullOrEmpty(baseName)) return new ImageHolder();
result.FileName = string.Format(AppSettings.CInfo, "{0}_{1:g}.png", Path.Combine(basePath, baseName), number);
SizeF imgSize = new SizeF();
FontStyle styleFontStyle = FontStyle.Regular;
if (style.Bold)
styleFontStyle = styleFontStyle | FontStyle.Bold;
if (style.Italic)
styleFontStyle = styleFontStyle | FontStyle.Italic;
Font styleFont = new Font(style.FontName, style.FontSize, styleFontStyle, GraphicsUnit.Point);
StringFormat stringFormat = new StringFormat();
List<SizeF> lineSizes = new List<SizeF>();
string rawText = Regex.Replace(caption.Text, "</*?(?:i|b)>", "", RegexOptions.Singleline | RegexOptions.Multiline);
string[] rawTextLines = rawText.Split(new[] {Environment.NewLine}, StringSplitOptions.None);
foreach (string rawTextLine in rawTextLines)
{
using (GraphicsPath rawLinePath = new GraphicsPath())
{
rawLinePath.AddString(rawTextLine, styleFont.FontFamily, (int) styleFontStyle,
styleFont.SizeInPoints, new PointF(), stringFormat);
lineSizes.Add(rawLinePath.GetBounds().Size);
}
}
string[] textLines = caption.Text.Split(new[] { Environment.NewLine }, StringSplitOptions.None);
float lastLineBreak = 0f;
foreach (SizeF lineSize in lineSizes)
{
imgSize.Height += lineSize.Height;
lastLineBreak = lineSize.Height/3;
imgSize.Height += lastLineBreak;
if (lineSize.Width > imgSize.Width)
imgSize.Width = lineSize.Width;
}
imgSize.Height -= lastLineBreak;
if (imgSize.IsEmpty) return new ImageHolder();
stringFormat.SetMeasurableCharacterRanges(new[] { new CharacterRange(0, 1) });
RectangleF whiteSpace;
using (Image img = new Bitmap((int)imgSize.Width, (int)imgSize.Height, PixelFormat.Format32bppArgb))
{
using (Graphics g = Graphics.FromImage(img))
{
RectangleF origin = new RectangleF(new PointF(0f,0f), imgSize);
Region[] regions2 = g.MeasureCharacterRanges(" .", styleFont, origin, stringFormat);
if (!regions2.Any()) return new ImageHolder();
whiteSpace = regions2[0].GetBounds(g);
}
}
GraphicsPath wordpath = new GraphicsPath();
GraphicsPath wordPathShadow = new GraphicsPath();
int shadowOffset = style.Shadow;
RectangleF wStart = new RectangleF { Y = 0, X = 0 };
RectangleF wStartShadow = wStart;
wStartShadow.Offset(shadowOffset, shadowOffset);
for (int i = 0; i < textLines.Length; i++)
{
string textLine = textLines[i];
SizeF lineSize = lineSizes[i];
wStart.Offset(imgSize.Width / 2 - lineSize.Width / 2, 0);
wStartShadow.Offset(imgSize.Width / 2 - lineSize.Width / 2, 0);
string[] words = textLine.Split(new[] { " " }, StringSplitOptions.RemoveEmptyEntries);
foreach (string word in words)
{
using (GraphicsPath singleWord = new GraphicsPath(),
singleWordShadow = new GraphicsPath())
{
string lWord;
FontStyle fontStyle = GetStyleFont(word, out lWord, styleFontStyle);
if (string.IsNullOrEmpty(lWord)) continue;
singleWord.AddString(lWord, styleFont.FontFamily, (int) fontStyle, styleFont.SizeInPoints,
wStart.Location, stringFormat);
singleWordShadow.AddString(lWord, styleFont.FontFamily, (int) fontStyle,
styleFont.SizeInPoints, wStartShadow.Location, stringFormat);
wordpath.AddPath(singleWord, false);
wordPathShadow.AddPath(singleWordShadow, false);
wStart.Offset(singleWord.GetBounds().Size.Width + whiteSpace.Size.Width, 0);
wStartShadow.Offset(singleWordShadow.GetBounds().Size.Width + whiteSpace.Size.Width, 0);
}
}
wStart.X = 0;
wStart.Offset(0, lineSize.Height + lineSize.Height / 3);
wStartShadow.X = shadowOffset;
wStartShadow.Offset(0, lineSize.Height + lineSize.Height / 3);
}
imgSize.Width = wordPathShadow.GetBounds().Right;
imgSize.Height = wordPathShadow.GetBounds().Bottom;
using (Image img = new Bitmap((int)imgSize.Width + style.MarginL + style.MarginR, (int)imgSize.Height + style.MarginV * 2, PixelFormat.Format32bppArgb))
{
using (Graphics g = Graphics.FromImage(img))
{
g.CompositingMode = CompositingMode.SourceOver;
g.CompositingQuality = CompositingQuality.HighQuality;
g.TextRenderingHint = TextRenderingHint.AntiAlias;
g.SmoothingMode = SmoothingMode.HighQuality;
g.PixelOffsetMode = PixelOffsetMode.HighQuality;
g.InterpolationMode = InterpolationMode.High;
Brush primBrush = new SolidBrush(style.PrimaryColor);
Brush shadowBrush = new SolidBrush(Color.FromArgb(64, style.BackColor));
Pen outPen = new Pen(style.OutlineColor) {Alignment = PenAlignment.Outset};
if (style.BorderStyle == 1)
{
outPen.Width = style.Outline == 0 && style.Shadow > 0 ? 1 : style.Outline;
style.Outline = (int) outPen.Width;
}
g.FillRectangle(Brushes.Transparent, 0, 0, img.Width, img.Height);
// draw shadow
if (style.BorderStyle == 1 && style.Shadow > 0)
g.FillPath(shadowBrush, wordPathShadow);
g.FillPath(primBrush, wordpath);
// draw outline
if (style.BorderStyle == 1 && style.Outline > 0)
g.DrawPath(outPen, wordpath);
}
img.Save(result.FileName, ImageFormat.Png);
result.FileName = Path.GetFileName(result.FileName);
result.Height = img.Height;
result.Width = img.Width;
}
return result;
}
