public static Bitmap RenderText(LineContent[] lc) { float w = 720; float h = 576; // With DPIAware setting baseSize need to be kept // adjust for different DPI settings (96dpi = 100%) using (Graphics graphics = GUIGraphicsContext.form.CreateGraphics()) { if (Environment.OSVersion.Version.Major >= 6 && graphics.DpiY != 96.0) { w *= graphics.DpiX/96; h *= graphics.DpiY/96; } } Bitmap bmp = new Bitmap((int)w, (int)h); using (Graphics gBmp = Graphics.FromImage(bmp)) { using (SolidBrush brush = new SolidBrush(Color.FromArgb(255, 255, 255))) { using (SolidBrush blackBrush = new SolidBrush(Color.FromArgb(0, 0, 0))) { gBmp.TextRenderingHint = TextRenderingHint.AntiAlias; for (int i = 0; i < lc.Length; i++) { using (Font fnt = new Font("Courier", (lc[i].doubleHeight ? 22 : 15), FontStyle.Bold)) // fixed width font! { int vertOffset = ((int)h / lc.Length) * i; SizeF size = gBmp.MeasureString(lc[i].line, fnt); //gBmp.FillRectangle(new SolidBrush(Color.Pink), new Rectangle(0, 0, w, h)); int horzOffset = (int)((w - size.Width) / 2); // center based on actual text width gBmp.DrawString(lc[i].line, fnt, blackBrush, new PointF(horzOffset + 1, vertOffset + 0)); gBmp.DrawString(lc[i].line, fnt, blackBrush, new PointF(horzOffset + 0, vertOffset + 1)); gBmp.DrawString(lc[i].line, fnt, blackBrush, new PointF(horzOffset - 1, vertOffset + 0)); gBmp.DrawString(lc[i].line, fnt, blackBrush, new PointF(horzOffset + 0, vertOffset - 1)); gBmp.DrawString(lc[i].line, fnt, brush, new PointF(horzOffset, vertOffset)); } } } } } return bmp; }
public static Bitmap RenderText(LineContent[] lc) { int w = 720; int h = 576; Bitmap bmp = new Bitmap(w, h); using (Graphics gBmp = Graphics.FromImage(bmp)) { using (SolidBrush brush = new SolidBrush(Color.FromArgb(255, 255, 255))) { using (SolidBrush blackBrush = new SolidBrush(Color.FromArgb(0, 0, 0))) { gBmp.TextRenderingHint = TextRenderingHint.AntiAlias; for (int i = 0; i < lc.Length; i++) { using (Font fnt = new Font("Courier", (lc[i].doubleHeight ? 22 : 15), FontStyle.Bold)) // fixed width font! { int vertOffset = (h / lc.Length) * i; SizeF size = gBmp.MeasureString(lc[i].line, fnt); //gBmp.FillRectangle(new SolidBrush(Color.Pink), new Rectangle(0, 0, w, h)); int horzOffset = (int)((w - size.Width) / 2); // center based on actual text width gBmp.DrawString(lc[i].line, fnt, blackBrush, new PointF(horzOffset + 1, vertOffset + 0)); gBmp.DrawString(lc[i].line, fnt, blackBrush, new PointF(horzOffset + 0, vertOffset + 1)); gBmp.DrawString(lc[i].line, fnt, blackBrush, new PointF(horzOffset - 1, vertOffset + 0)); gBmp.DrawString(lc[i].line, fnt, blackBrush, new PointF(horzOffset + 0, vertOffset - 1)); gBmp.DrawString(lc[i].line, fnt, brush, new PointF(horzOffset, vertOffset)); } } } } } return bmp; }
public void EndPage() { if (pageNumInProgress == -1) { return; // no page in progress } else if ((pageNumInProgress < 0 || pageNumInProgress >= 966)) { Log.Debug("DANGER DANGER!, endpage with pageNumInProgress = %i", pageNumInProgress); return; } Log.Debug("Finished Page {0}", pageNumInProgress); //bool hasContent = false; for (int i = 0; i < 25; i++) { bool boxed = false; byte[] lineContent = GetLine(i); for (int j = 0; j < 40; j++) { // Remove spacing attributes ( see 12.2 of the draft) // FIXME: Some subtitles will have the attributed 'double height' // and therefore have an empty line between subs. // ís this content a space attribute? if (MSB3_NP(lineContent[j]) == 0) { if (LSB4(lineContent[j]) == SPACE_ATTRIB_BOX_START) { //LogDebug("BS - boxed is true"); boxed = true; //hasContent = true; } else if (LSB4(lineContent[j]) == SPACE_ATTRIB_BOX_END) { //LogDebug("BE - boxed is false"); boxed = false; } // remove spacing attribute lineContent[j] = TELETEXT_BLANK; } else if (!boxed) { // if we are not in boxed mode, // we dont want to keep the content lineContent[j] = TELETEXT_BLANK; assert(!boxed, "EndPage: Boxed not set as expected"); } } SetLine(i, lineContent); } /*if(!hasContent) { Log.Debug("(BLANK PAGE)"); }*/ byte[] byte_text = new byte[TELETEXT_WIDTH * TELETEXT_LINES]; Array.Copy(pageContent, byte_text, TELETEXT_LINES * TELETEXT_WIDTH); char[] text = TextConversion.Convert(language, byte_text); LineContent[] lc = new LineContent[TELETEXT_LINES]; string realLang = ""; lock (langInfo) { string langInfoInPgrs = null; if (langInfo.TryGetValue(pageNumInProgress, out langInfoInPgrs)) { realLang = langInfoInPgrs; } } for (int line = 0; line < TELETEXT_LINES; line++) { StringBuilder lineBuilder = new StringBuilder(); for (int c = 0; c < TELETEXT_WIDTH; c++) { lineBuilder.Append((char)text[line * TELETEXT_WIDTH + c]); } lc[line] = new LineContent(); if (realLang != "") { lc[line].line = TextConversion.ConvertLineLangSpecific(realLang, lineBuilder.ToString()); } else { lc[line].line = lineBuilder.ToString(); } lc[line].doubleHeight = true; } StringBuilder textBuilder = new StringBuilder(); for (int i = 0; i < text.Length; i++) { //sbuf.Append((char)text[i]); textBuilder.Append((char)text[i]); //sbuf.Append("" + ((int)pageContent[i]) + " "); if (((i + 1) % 40) == 0) { textBuilder.Append('\n'); } } // prepare subtitle TEXT_SUBTITLE sub = new TEXT_SUBTITLE(); sub.encoding = language; sub.page = pageNumInProgress; sub.language = realLang; sub.text = textBuilder.ToString(); sub.lc = lc; sub.timeOut = ulong.MaxValue; // never timeout (will be replaced by other page) sub.timeStamp = presentTime; assert(sub.text != null, "Sub.text == null!"); if (owner.SubPageInfoCallback != null) { TeletextPageEntry pageEntry = new TeletextPageEntry(); pageEntry.language = String.Copy(sub.language); pageEntry.encoding = (TeletextCharTable)sub.encoding; pageEntry.page = sub.page; owner.SubPageInfoCallback(pageEntry); } owner.SubtitleRender.OnTextSubtitle(ref sub); pageNumInProgress = -1; }
public void EndPage() { if (pageNumInProgress == -1) { return; // no page in progress } else if ((pageNumInProgress < 0 || pageNumInProgress >= 966)) { Log.Debug("DANGER DANGER!, endpage with pageNumInProgress = %i", pageNumInProgress); return; } Log.Debug("Finished Page {0}", pageNumInProgress); //bool hasContent = false; for (int i = 0; i < 25; i++) { bool boxed = false; byte[] lineContent = GetLine(i); for (int j = 0; j < 40; j++) { // Remove spacing attributes ( see 12.2 of the draft) // FIXME: Some subtitles will have the attributed 'double height' // and therefore have an empty line between subs. // ís this content a space attribute? if (MSB3_NP(lineContent[j]) == 0) { if (LSB4(lineContent[j]) == SPACE_ATTRIB_BOX_START) { //LogDebug("BS - boxed is true"); boxed = true; //hasContent = true; } else if (LSB4(lineContent[j]) == SPACE_ATTRIB_BOX_END) { //LogDebug("BE - boxed is false"); boxed = false; } // remove spacing attribute lineContent[j] = TELETEXT_BLANK; } else if (!boxed) { // if we are not in boxed mode, // we dont want to keep the content lineContent[j] = TELETEXT_BLANK; assert(!boxed, "EndPage: Boxed not set as expected"); } } SetLine(i, lineContent); } /*if(!hasContent) { * Log.Debug("(BLANK PAGE)"); * }*/ byte[] byte_text = new byte[TELETEXT_WIDTH * TELETEXT_LINES]; Array.Copy(pageContent, byte_text, TELETEXT_LINES * TELETEXT_WIDTH); char[] text = TextConversion.Convert(language, byte_text); LineContent[] lc = new LineContent[TELETEXT_LINES]; string realLang = ""; lock (langInfo) { string langInfoInPgrs = null; if (langInfo.TryGetValue(pageNumInProgress, out langInfoInPgrs)) { realLang = langInfoInPgrs; } } for (int line = 0; line < TELETEXT_LINES; line++) { StringBuilder lineBuilder = new StringBuilder(); for (int c = 0; c < TELETEXT_WIDTH; c++) { lineBuilder.Append((char)text[line * TELETEXT_WIDTH + c]); } lc[line] = new LineContent(); if (realLang != "") { lc[line].line = TextConversion.ConvertLineLangSpecific(realLang, lineBuilder.ToString()); } else { lc[line].line = lineBuilder.ToString(); } lc[line].doubleHeight = true; } StringBuilder textBuilder = new StringBuilder(); for (int i = 0; i < text.Length; i++) { //sbuf.Append((char)text[i]); textBuilder.Append((char)text[i]); //sbuf.Append("" + ((int)pageContent[i]) + " "); if (((i + 1) % 40) == 0) { textBuilder.Append('\n'); } } // prepare subtitle TEXT_SUBTITLE sub = new TEXT_SUBTITLE(); sub.encoding = language; sub.page = pageNumInProgress; sub.language = realLang; sub.text = textBuilder.ToString(); sub.lc = lc; sub.timeOut = ulong.MaxValue; // never timeout (will be replaced by other page) sub.timeStamp = presentTime; assert(sub.text != null, "Sub.text == null!"); if (owner.SubPageInfoCallback != null) { TeletextPageEntry pageEntry = new TeletextPageEntry(); pageEntry.language = String.Copy(sub.language); pageEntry.encoding = (TeletextCharTable)sub.encoding; pageEntry.page = sub.page; owner.SubPageInfoCallback(pageEntry); } owner.SubtitleRender.OnTextSubtitle(ref sub); pageNumInProgress = -1; }