Ejemplo n.º 1
0
        /**
         * render inline area to PDF
         *
         * @param area inline area to render
         */
        public void RenderWordArea(WordArea area)
        {
            FontState fontState = area.GetFontState();
            String    name      = fontState.FontName;
            int       size      = fontState.FontSize;
            // This assumes that *all* CIDFonts use a /ToUnicode mapping
            Font font = (Font)fontState.FontInfo.GetFontByName(name);

            if ((!name.Equals(this.currentFontName)) ||
                (size != this.currentFontSize))
            {
                CloseText();

                this.currentFontName = name;
                this.currentFontSize = size;

                currentStream.SetFont(name, size);
            }

            // Do letter spacing (must be outside of [...] TJ]
            float letterspacing = ((float)fontState.LetterSpacing) / 1000f;

            if (letterspacing != this.currentLetterSpacing)
            {
                this.currentLetterSpacing = letterspacing;
                CloseText(); //?
                currentStream.SetLetterSpacing(letterspacing);
            }

            //--------------------------------------------
            PdfColor?a_color       = this.currentFill;
            PdfColor areaObj_color = area.GetColor();

            if (a_color == null || !areaObj_color.IsEq(a_color.Value))
            {
                //change area color
                a_color = areaObj_color;

                CloseText(); //?
                this.currentFill = a_color;
                currentStream.SetFontColor(a_color.Value);
            }
            //--------------------------------------------

            int rx           = this.currentXPosition;
            int bl           = this.currentYPosition;
            int areaContentW = area.getContentWidth();

            if (area.getUnderlined())
            {
                AddUnderLine(rx, bl, areaContentW, size, a_color.Value);
            }
            if (area.getOverlined())
            {
                AddOverLine(rx, bl, areaContentW, size, fontState.Ascender, a_color.Value);
            }
            if (area.getLineThrough())
            {
                AddLineThrough(rx, bl, areaContentW, size, fontState.Ascender, a_color.Value);
            }
            //--------------------------------------------


            _textPrinter.Reset(fontState, options != null && options.Kerning);
            if (!textOpen || bl != prevWordY)
            {
                CloseText();
                //set text matrix


                _textPrinter.SetTextPos(rx, bl);
                //pdf.Append("1 0 0 1 " + PdfNumber.doubleOut(rx / 1000f) +
                //    " " + PdfNumber.doubleOut(bl / 1000f) + " Tm [" + startText);
                prevWordY = bl;
                textOpen  = true; //***
            }
            else
            {
                // express the space between words in thousandths of an em
                int   space  = prevWordX - rx + prevWordWidth;
                float emDiff = (float)space / (float)currentFontSize * 1000f;
                // this prevents a problem in Acrobat Reader where large
                // numbers cause text to disappear or default to a limit
                if (emDiff < -33000)
                {
                    CloseText();
                    _textPrinter.SetTextPos(rx, bl);
                    //pdf.Append("1 0 0 1 " + PdfNumber.doubleOut(rx / 1000f) +
                    //    " " + PdfNumber.doubleOut(bl / 1000f) + " Tm [" + startText);
                    textOpen = true;//***
                }
                else
                {
                    _textPrinter.SetEmDiff(emDiff);
                    //pdf.Append(PdfNumber.doubleOut(emDiff));
                    //pdf.Append(" ");
                    //pdf.Append(startText);
                }
            }

            prevWordWidth = areaContentW;
            prevWordX     = rx;

            string s = area.GetTextContent();

            if (area is PageNumberInlineArea)
            {
                //need to resolve to page number
                s = idReferences.getPageNumber(s);
            }
            _textPrinter.WriteText(s);
            //-------
            _textPrinter.PrintContentTo(currentStream);
            //-------
            this.currentXPosition += area.getContentWidth();
        }