Exemplo n.º 1
0
        private void GetCompositeGlyphStats(Table_glyf.CompositeGlyph cg, ref short nContours, ref ushort nPoints, ref ushort nInstructions, ref ushort nComponentElements, ref ushort nComponentDepth, OTFont fontOwner, Table_glyf glyfTable)
        {
            ushort nPointsTemp       = 0;
            short  nContoursTemp     = 0;
            ushort nInstructionsTemp = 0;
            short  TotalContours     = 0;
            ushort TotalPoints       = 0;
            ushort maxInstructions   = 0;

            nComponentDepth++;

            int nCompositeGlyphs = 0;

            while (cg != null)
            {
                nCompositeGlyphs++;
                nInstructions = Math.Max(nInstructions, cg.GetNumInstructions());

                Table_glyf.header glyfHeader = glyfTable.GetGlyphHeader(cg.glyphIndex, fontOwner);
                if (glyfHeader != null)
                {
                    if (glyfHeader.numberOfContours >= 0)
                    {
                        nContoursTemp = glyfHeader.numberOfContours;
                        Table_glyf.SimpleGlyph sg = glyfHeader.GetSimpleGlyph();
                        nPointsTemp       = (ushort)(sg.GetEndPtOfContour((uint)glyfHeader.numberOfContours - 1) + 1);
                        nInstructionsTemp = sg.instructionLength;
                    }
                    else
                    {
                        Table_glyf.CompositeGlyph EmbeddedCG = glyfHeader.GetCompositeGlyph();
                        GetCompositeGlyphStats(EmbeddedCG, ref nContoursTemp, ref nPointsTemp, ref nInstructionsTemp, ref nComponentElements, ref nComponentDepth, fontOwner, glyfTable);
                    }

                    TotalContours  += nContoursTemp;
                    TotalPoints    += nPointsTemp;
                    maxInstructions = Math.Max(maxInstructions, nInstructionsTemp);
                }

                cg = cg.GetNextCompositeGlyph();
            }

            nComponentElements = (ushort)Math.Max(nComponentElements, nCompositeGlyphs);
            nContours          = TotalContours;
            nPoints            = TotalPoints;
            nInstructions      = maxInstructions;
        }
Exemplo n.º 2
0
        private bool ComputeMaxpStats(Table_glyf glyfTable, OTFont fontOwner)
        {
            bool bRet = true;

            try
            {
                maxPointsCalc             = 0;
                maxContoursCalc           = 0;
                maxCompositePointsCalc    = 0;
                maxCompositeContoursCalc  = 0;
                maxSizeOfInstructionsCalc = 0;
                maxComponentElementsCalc  = 0;
                maxComponentDepthCalc     = 0;

                for (uint iGlyph = 0; iGlyph < NumGlyphs; iGlyph++)
                {
                    Table_glyf.header glyfHeader = glyfTable.GetGlyphHeader(iGlyph, fontOwner);
                    if (glyfHeader != null)
                    {
                        if (glyfHeader.numberOfContours >= 0)
                        {
                            Table_glyf.SimpleGlyph sg = glyfHeader.GetSimpleGlyph();
                            maxPointsCalc             = (ushort)Math.Max(maxPointsCalc, sg.GetEndPtOfContour((uint)glyfHeader.numberOfContours - 1) + 1);
                            maxContoursCalc           = (ushort)Math.Max(maxContoursCalc, glyfHeader.numberOfContours);
                            maxSizeOfInstructionsCalc = Math.Max(maxSizeOfInstructionsCalc, sg.instructionLength);
                        }
                        else
                        {
                            ushort nPointsTemp       = 0;
                            short  nContoursTemp     = 0;
                            ushort nInstructionsTemp = 0;
                            ushort nCompElementsTemp = 0;
                            ushort nCompDepthTemp    = 0;

                            Table_glyf.CompositeGlyph cg = glyfHeader.GetCompositeGlyph();
                            GetCompositeGlyphStats(cg, ref nContoursTemp, ref nPointsTemp, ref nInstructionsTemp, ref nCompElementsTemp, ref nCompDepthTemp, fontOwner, glyfTable);

                            maxCompositePointsCalc    = Math.Max(maxCompositePointsCalc, nPointsTemp);
                            maxCompositeContoursCalc  = Math.Max(maxCompositeContoursCalc, nContoursTemp);
                            maxSizeOfInstructionsCalc = Math.Max(maxSizeOfInstructionsCalc, nInstructionsTemp);
                            maxComponentElementsCalc  = Math.Max(maxComponentElementsCalc, nCompElementsTemp);
                            maxComponentDepthCalc     = Math.Max(maxComponentDepthCalc, nCompDepthTemp);
                        }
                    }
                }
            }
            catch
            {
                maxPointsCalc             = 0;
                maxContoursCalc           = 0;
                maxCompositePointsCalc    = 0;
                maxCompositeContoursCalc  = 0;
                maxSizeOfInstructionsCalc = 0;
                maxComponentElementsCalc  = 0;
                maxComponentDepthCalc     = 0;

                bRet = false;
            }

            return(bRet);
        }