private Glyph GetGlyph(char character) { Glyph glyph; if (!glyphs.TryGetValue(character, out glyph)) { // if we have a loaded ttf try to create the glyph data if (_ofTypeface != null) { var storage = new VertexStorage(); var translator = new VertexSourceGlyphTranslator(storage); var glyphIndex = _ofTypeface.LookupIndex(character); var ttfGlyph = _ofTypeface.GetGlyphByIndex(glyphIndex); // Typography.OpenFont.IGlyphReaderExtensions.Read(translator, ttfGlyph.GlyphPoints, ttfGlyph.EndPoints); // glyph = new Glyph(); glyph.unicode = character; glyph.horiz_adv_x = _ofTypeface.GetHAdvanceWidthFromGlyphIndex(glyphIndex); glyphs.Add(character, glyph); // Wrap glyph data with ClosedLoopGlyphData to ensure all loops are correctly closed glyph.glyphData = new ClosedLoopGlyphData(storage); } } return(glyph); }
internal IVertexSource GetGlyphForCharacter(char character) { if (_ofTypeface != null) { // TODO: MAKE SURE THIS IS OFF!!!!!!! It is un-needed and only for debugging //glyphs.Clear(); } // TODO: check for multi character glyphs (we don't currently support them in the reader). Glyph glyph = null; if (!glyphs.TryGetValue(character, out glyph)) { // if we have a loaded ttf try to create the glyph data if (_ofTypeface != null) { var storage = new VertexStorage(); var translator = new VertexSourceGlyphTranslator(storage); var glyphIndex = _ofTypeface.LookupIndex(character); var ttfGlyph = _ofTypeface.GetGlyphByIndex(glyphIndex); // Typography.OpenFont.IGlyphReaderExtensions.Read(translator, ttfGlyph.GlyphPoints, ttfGlyph.EndPoints); // glyph = new Glyph(); glyph.unicode = character; glyph.horiz_adv_x = _ofTypeface.GetHAdvanceWidthFromGlyphIndex(glyphIndex); glyphs.Add(character, glyph); // Wrap glyph data with ClosedLoopGlyphData to ensure all loops are correctly closed glyph.glyphData = new ClosedLoopGlyphData(storage); } } return(glyph?.glyphData); }
private void cmdMeasureTextSpan_Click(object sender, System.EventArgs e) { //set some Gdi+ props... g.SmoothingMode = System.Drawing.Drawing2D.SmoothingMode.HighQuality; g.Clear(Color.White); //credit: //http://stackoverflow.com/questions/1485745/flip-coordinates-when-drawing-to-control g.ScaleTransform(1.0F, -1.0F); // Flip the Y-Axis g.TranslateTransform(0.0F, -(float)300); // Translate the drawing area accordingly //-------------------------------- //textspan measurement sample //-------------------------------- _currentTextPrinter.HintTechnique = (HintTechnique)lstHintList.SelectedItem; _currentTextPrinter.PositionTechnique = (PositionTechnique)cmbPositionTech.SelectedItem; //render at specific pos float x_pos = 0, y_pos = 100; char[] textBuffer = txtInputChar.Text.ToCharArray(); //Example 1: this is a basic draw sample _currentTextPrinter.FillColor = Color.Black; _currentTextPrinter.TargetGraphics = g; _currentTextPrinter.DrawString( textBuffer, 0, textBuffer.Length, x_pos, y_pos ); // //-------------------------------------------------- //Example 2: print glyph plan to 'user' list-> then draw it (or hold it/ not draw) //you can create you own class to hold userGlyphPlans.*** //2.1 _reusableUnscaledGlyphPlanList.Clear(); _currentTextPrinter.GenerateGlyphPlan(textBuffer, 0, textBuffer.Length, _reusableUnscaledGlyphPlanList); //2.2 //and we can print the formatted glyph plan later. y_pos -= _currentTextPrinter.FontLineSpacingPx; _currentTextPrinter.FillColor = Color.Red; _currentTextPrinter.DrawFromGlyphPlans( new GlyphPlanSequence(_reusableUnscaledGlyphPlanList), x_pos, y_pos ); //Example 3: MeasureString Typography.OpenFont.Typeface typeface = _currentTextPrinter.Typeface; UnscaledGlyphPlanList userGlyphPlans = new UnscaledGlyphPlanList(); _currentTextPrinter.GlyphLayoutMan.GenerateUnscaledGlyphPlans(userGlyphPlans); MeasuredStringBox strBox = new MeasuredStringBox(); throw new System.NotSupportedException(); //_currentTextPrinter.GlyphLayoutMan.LayoutAndMeasureString( // textBuffer, 0, textBuffer.Length, // _currentTextPrinter.FontSizeInPoints, // true, // userGlyphPlans); float x_pos2 = x_pos + strBox.width + 10; g.DrawRectangle(Pens.Red, x_pos, y_pos + strBox.descending, strBox.width, strBox.CalculateLineHeight()); g.DrawLine(Pens.Blue, x_pos, y_pos, x_pos2, y_pos); //baseline g.DrawLine(Pens.Green, x_pos, y_pos + strBox.descending, x_pos2, y_pos + strBox.descending); //descending g.DrawLine(Pens.Magenta, x_pos, y_pos + strBox.ascending, x_pos2, y_pos + strBox.ascending); //ascending Typography.OpenFont.TypefaceExtension2.UpdateAllCffGlyphBounds(typeface); float pxscale = typeface.CalculateScaleToPixelFromPointSize(_currentTextPrinter.FontSizeInPoints); int j = userGlyphPlans.Count; for (int i = 0; i < j; ++i) { UnscaledGlyphPlan glyphPlan = userGlyphPlans[i]; Typography.OpenFont.Glyph glyph = typeface.GetGlyphByIndex(glyphPlan.glyphIndex); // Typography.OpenFont.Bounds b = glyph.Bounds; // float xmin = b.XMin * pxscale; float ymin = b.YMin * pxscale; // float xmax = b.XMax * pxscale; float ymax = b.YMax * pxscale; // float glyph_x = x_pos + glyphPlan.OffsetX; g.DrawRectangle(Pens.Red, glyph_x + xmin, y_pos + ymin, xmax - xmin, ymax - ymin); } //------------ _currentTextPrinter.FillColor = Color.Black; //transform back g.ScaleTransform(1.0F, -1.0F); // Flip the Y-Axis g.TranslateTransform(0.0F, -(float)300); // Translate the drawing area accordingly }