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/* ====================================================================
   Licensed to the Apache Software Foundation (ASF) under one or more
   contributor license agreements.  See the NOTICE file distributed with
   this work for additional information regarding copyright ownership.
   The ASF licenses this file to You under the Apache License, Version 2.0
   (the "License"); you may not use this file except in compliance with
   the License.  You may obtain a copy of the License at

       http://www.apache.org/licenses/LICENSE-2.0

   Unless required by applicable law or agreed to in writing, software
   distributed under the License is distributed on an "AS IS" BASIS,
   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
   See the License for the specific language governing permissions and
   limitations under the License.
==================================================================== */
package org.apache.poi.xslf.usermodel;

import java.awt.Color;
import java.util.function.Consumer;

import org.apache.logging.log4j.LogManager;
import org.apache.logging.log4j.Logger;
import org.apache.poi.common.usermodel.fonts.FontCharset;
import org.apache.poi.common.usermodel.fonts.FontFamily;
import org.apache.poi.common.usermodel.fonts.FontGroup;
import org.apache.poi.common.usermodel.fonts.FontInfo;
import org.apache.poi.common.usermodel.fonts.FontPitch;
import org.apache.poi.ooxml.util.POIXMLUnits;
import org.apache.poi.openxml4j.exceptions.OpenXML4JRuntimeException;
import org.apache.poi.openxml4j.opc.PackagePart;
import org.apache.poi.sl.draw.DrawPaint;
import org.apache.poi.sl.usermodel.PaintStyle;
import org.apache.poi.sl.usermodel.PaintStyle.SolidPaint;
import org.apache.poi.sl.usermodel.TextRun;
import org.apache.poi.util.Beta;
import org.apache.poi.util.Internal;
import org.apache.poi.util.Units;
import org.apache.poi.xslf.model.CharacterPropertyFetcher;
import org.apache.poi.xslf.model.CharacterPropertyFetcher.CharPropFetcher;
import org.apache.poi.xslf.usermodel.XSLFPropertiesDelegate.XSLFFillProperties;
import org.apache.xmlbeans.XmlObject;
import org.openxmlformats.schemas.drawingml.x2006.main.CTFontCollection;
import org.openxmlformats.schemas.drawingml.x2006.main.CTFontScheme;
import org.openxmlformats.schemas.drawingml.x2006.main.CTHyperlink;
import org.openxmlformats.schemas.drawingml.x2006.main.CTRegularTextRun;
import org.openxmlformats.schemas.drawingml.x2006.main.CTSchemeColor;
import org.openxmlformats.schemas.drawingml.x2006.main.CTShapeStyle;
import org.openxmlformats.schemas.drawingml.x2006.main.CTSolidColorFillProperties;
import org.openxmlformats.schemas.drawingml.x2006.main.CTTextBodyProperties;
import org.openxmlformats.schemas.drawingml.x2006.main.CTTextCharacterProperties;
import org.openxmlformats.schemas.drawingml.x2006.main.CTTextField;
import org.openxmlformats.schemas.drawingml.x2006.main.CTTextFont;
import org.openxmlformats.schemas.drawingml.x2006.main.CTTextLineBreak;
import org.openxmlformats.schemas.drawingml.x2006.main.CTTextNormalAutofit;
import org.openxmlformats.schemas.drawingml.x2006.main.STTextStrikeType;
import org.openxmlformats.schemas.drawingml.x2006.main.STTextUnderlineType;

/**
 * Represents a run of text within the containing text body. The run element is the
 * lowest level text separation mechanism within a text body.
 */
@Beta
public class XSLFTextRun implements TextRun {
    private static final Logger LOG = LogManager.getLogger(XSLFTextRun.class);

    private final XmlObject _r;
    private final XSLFTextParagraph _p;

    protected XSLFTextRun(XmlObject r, XSLFTextParagraph p){
        _r = r;
        _p = p;
        if (!(r instanceof CTRegularTextRun || r instanceof CTTextLineBreak || r instanceof CTTextField)) {
            throw new OpenXML4JRuntimeException("unsupported text run of type "+r.getClass());
        }
    }

    @Override
    public String getRawText(){
        if (_r instanceof CTTextField) {
            return ((CTTextField)_r).getT();
        } else if (_r instanceof CTTextLineBreak) {
            return "\n";
        }
        return ((CTRegularTextRun)_r).getT();
    }

    @Override
    public void setText(String text){
        if (_r instanceof CTTextField) {
            ((CTTextField)_r).setT(text);
        } else if (!(_r instanceof CTTextLineBreak)) {
            ((CTRegularTextRun)_r).setT(text);
        }
    }

    /**
     * Return the text run xmlbeans object.
     * Depending on the type of text run, this can be {@link CTTextField},
     * {@link CTTextLineBreak} or usually a {@link CTRegularTextRun}
     *
     * @return the xmlbeans object
     */
    @Internal
    public XmlObject getXmlObject(){
        return _r;
    }

    @Override
    public void setFontColor(Color color) {
        setFontColor(DrawPaint.createSolidPaint(color));
    }

    @Override
    public void setFontColor(PaintStyle color) {
        if (!(color instanceof SolidPaint)) {
            LOG.atWarn().log("Currently only SolidPaint is supported!");
            return;
        }
        SolidPaint sp = (SolidPaint)color;
        Color c = DrawPaint.applyColorTransform(sp.getSolidColor());

        CTTextCharacterProperties rPr = getRPr(true);
        CTSolidColorFillProperties fill = rPr.isSetSolidFill() ? rPr.getSolidFill() : rPr.addNewSolidFill();

        XSLFSheet sheet = getParagraph().getParentShape().getSheet();
        XSLFColor col = new XSLFColor(fill, sheet.getTheme(), fill.getSchemeClr(), sheet);
        col.setColor(c);
    }

    @Override
    public PaintStyle getFontColor(){
        XSLFShape shape = getParagraph().getParentShape();
        final boolean hasPlaceholder = shape.getPlaceholder() != null;
        return fetchCharacterProperty((props, val) -> fetchFontColor(props, val, shape, hasPlaceholder));
    }

    private static void fetchFontColor(CTTextCharacterProperties props, Consumer val, XSLFShape shape, boolean hasPlaceholder) {
        if (props == null) {
            return;
        }

        CTShapeStyle style = shape.getSpStyle();
        CTSchemeColor phClr = null;
        if (style != null && style.getFontRef() != null) {
            phClr = style.getFontRef().getSchemeClr();
        }

        XSLFFillProperties fp = XSLFPropertiesDelegate.getFillDelegate(props);
        XSLFSheet sheet = shape.getSheet();
        PackagePart pp = sheet.getPackagePart();
        XSLFTheme theme = sheet.getTheme();
        PaintStyle ps = shape.selectPaint(fp, phClr, pp, theme, hasPlaceholder);

        if (ps != null)  {
            val.accept(ps);
        }
    }



    @Override
    public void setFontSize(Double fontSize){
        CTTextCharacterProperties rPr = getRPr(true);
        if(fontSize == null) {
            if (rPr.isSetSz()) {
                rPr.unsetSz();
            }
        } else {
            if (fontSize < 1.0) {
                throw new IllegalArgumentException("Minimum font size is 1pt but was " + fontSize);
            }

            rPr.setSz((int)(100*fontSize));
        }
    }

    @Override
    public Double getFontSize(){
        double scale = 1;
        final XSLFTextShape ps = getParagraph().getParentShape();
        if (ps != null) {
            final CTTextBodyProperties tbp = ps.getTextBodyPr();
            if (tbp != null) {
                CTTextNormalAutofit afit = tbp.getNormAutofit();
                if (afit != null && afit.isSetFontScale()) {
                    scale = POIXMLUnits.parsePercent(afit.xgetFontScale()) / 100000.;
                }
            }
        }

        Double d = fetchCharacterProperty((props, val) -> {
            if (props.isSetSz()) {
                val.accept(props.getSz()*0.01);
            }
        });
        return d == null ? null : d*scale;
    }

    /**
     * @return the spacing between characters within a text run,
     * If this attribute is omitted than a value of 0 or no adjustment is assumed.
     */
    @SuppressWarnings("WeakerAccess")
    public double getCharacterSpacing(){
        Double d = fetchCharacterProperty((props, val) -> {
            if (props.isSetSpc()) {
                val.accept(Units.toPoints(POIXMLUnits.parseLength(props.xgetSpc())));
            }
        });
        return d == null ? 0 : d;
    }

    /**
     * Set the spacing between characters within a text run.
     * 

* The spacing is specified in points. Positive values will cause the text to expand, * negative values to condense. *

* * @param spc character spacing in points. */ @SuppressWarnings("WeakerAccess") public void setCharacterSpacing(double spc){ CTTextCharacterProperties rPr = getRPr(true); if(spc == 0.0) { if(rPr.isSetSpc()) { rPr.unsetSpc(); } } else { rPr.setSpc((int)(100*spc)); } } @Override public void setFontFamily(String typeface) { FontGroup fg = FontGroup.getFontGroupFirst(getRawText()); new XSLFFontInfo(fg).setTypeface(typeface); } @Override public void setFontFamily(String typeface, FontGroup fontGroup) { new XSLFFontInfo(fontGroup).setTypeface(typeface); } @Override public void setFontInfo(FontInfo fontInfo, FontGroup fontGroup) { new XSLFFontInfo(fontGroup).copyFrom(fontInfo); } @Override public String getFontFamily() { FontGroup fg = FontGroup.getFontGroupFirst(getRawText()); return new XSLFFontInfo(fg).getTypeface(); } @Override public String getFontFamily(FontGroup fontGroup) { return new XSLFFontInfo(fontGroup).getTypeface(); } @Override public FontInfo getFontInfo(FontGroup fontGroup) { XSLFFontInfo fontInfo = new XSLFFontInfo(fontGroup); return (fontInfo.getTypeface() != null) ? fontInfo : null; } @Override public byte getPitchAndFamily(){ FontGroup fg = FontGroup.getFontGroupFirst(getRawText()); XSLFFontInfo fontInfo = new XSLFFontInfo(fg); FontPitch pitch = fontInfo.getPitch(); if (pitch == null) { pitch = FontPitch.VARIABLE; } FontFamily family = fontInfo.getFamily(); if (family == null) { family = FontFamily.FF_SWISS; } return FontPitch.getNativeId(pitch, family); } @Override public void setStrikethrough(boolean strike) { getRPr(true).setStrike(strike ? STTextStrikeType.SNG_STRIKE : STTextStrikeType.NO_STRIKE); } @Override public boolean isStrikethrough() { Boolean b = fetchCharacterProperty((props, val) -> { if (props.isSetStrike()) { val.accept(props.getStrike() != STTextStrikeType.NO_STRIKE); } }); return b != null && b; } @Override public boolean isSuperscript() { Boolean b = fetchCharacterProperty((props, val) -> { if (props.isSetBaseline()) { val.accept(POIXMLUnits.parsePercent(props.xgetBaseline()) > 0); } }); return b != null && b; } /** * Set the baseline for both the superscript and subscript fonts. *

* The size is specified using a percentage. * Positive values indicate superscript, negative values indicate subscript. *

*/ @SuppressWarnings("WeakerAccess") public void setBaselineOffset(double baselineOffset){ getRPr(true).setBaseline((int) baselineOffset * 1000); } /** * Set whether the text in this run is formatted as superscript. * Default base line offset is 30% * * @see #setBaselineOffset(double) */ @SuppressWarnings("WeakerAccess") public void setSuperscript(boolean flag){ setBaselineOffset(flag ? 30. : 0.); } /** * Set whether the text in this run is formatted as subscript. * Default base line offset is -25%. * * @see #setBaselineOffset(double) */ @SuppressWarnings("WeakerAccess") public void setSubscript(boolean flag){ setBaselineOffset(flag ? -25.0 : 0.); } @Override public boolean isSubscript() { Boolean b = fetchCharacterProperty((props, val) -> { if (props.isSetBaseline()) { val.accept(POIXMLUnits.parsePercent(props.xgetBaseline()) < 0); } }); return b != null && b; } /** * @return whether a run of text will be formatted as a superscript text. Default is false. */ @Override public TextCap getTextCap() { TextCap textCap = fetchCharacterProperty((props, val) -> { if (props.isSetCap()) { val.accept(TextCap.values()[props.getCap().intValue() - 1]); } }); return textCap == null ? TextCap.NONE : textCap; } @Override public void setBold(boolean bold){ getRPr(true).setB(bold); } @Override public boolean isBold() { Boolean b = fetchCharacterProperty((props, val) -> { if (props.isSetB()) { val.accept(props.getB()); } }); return b != null && b; } @Override public void setItalic(boolean italic){ getRPr(true).setI(italic); } @Override public boolean isItalic() { Boolean b = fetchCharacterProperty((props, val) -> { if (props.isSetI()) { val.accept(props.getI()); } }); return b != null && b; } @Override public void setUnderlined(boolean underline) { getRPr(true).setU(underline ? STTextUnderlineType.SNG : STTextUnderlineType.NONE); } @Override public boolean isUnderlined(){ Boolean b = fetchCharacterProperty((props, val) -> { if (props.isSetU()) { val.accept(props.getU() != STTextUnderlineType.NONE); } }); return b != null && b; } /** * Return the character properties * * @param create if true, create an empty character properties object if it doesn't exist * @return the character properties or null if create was false and the properties haven't exist */ @Internal public CTTextCharacterProperties getRPr(boolean create) { if (_r instanceof CTTextField) { CTTextField tf = (CTTextField)_r; if (tf.isSetRPr()) { return tf.getRPr(); } else if (create) { return tf.addNewRPr(); } } else if (_r instanceof CTTextLineBreak) { CTTextLineBreak tlb = (CTTextLineBreak)_r; if (tlb.isSetRPr()) { return tlb.getRPr(); } else if (create) { return tlb.addNewRPr(); } } else { CTRegularTextRun tr = (CTRegularTextRun)_r; if (tr.isSetRPr()) { return tr.getRPr(); } else if (create) { return tr.addNewRPr(); } } if (_p.getXmlObject().isSetPPr() && _p.getXmlObject().getPPr().isSetDefRPr()) { return _p.getXmlObject().getPPr().getDefRPr(); } return null; } @Override public String toString(){ return "[" + getClass() + "]" + getRawText(); } @Override public XSLFHyperlink createHyperlink(){ XSLFHyperlink hl = getHyperlink(); if (hl != null) { return hl; } CTTextCharacterProperties rPr = getRPr(true); return new XSLFHyperlink(rPr.addNewHlinkClick(), _p.getParentShape().getSheet()); } @Override public XSLFHyperlink getHyperlink(){ CTTextCharacterProperties rPr = getRPr(false); if (rPr == null) { return null; } CTHyperlink hl = rPr.getHlinkClick(); if (hl == null) { return null; } return new XSLFHyperlink(hl, _p.getParentShape().getSheet()); } private T fetchCharacterProperty(CharPropFetcher fetcher){ final XSLFTextShape shape = _p.getParentShape(); return new CharacterPropertyFetcher<>(this, fetcher).fetchProperty(shape); } void copy(XSLFTextRun r){ String srcFontFamily = r.getFontFamily(); if(srcFontFamily != null && !srcFontFamily.equals(getFontFamily())){ setFontFamily(srcFontFamily); } PaintStyle srcFontColor = r.getFontColor(); if(srcFontColor != null && !srcFontColor.equals(getFontColor())){ setFontColor(srcFontColor); } Double srcFontSize = r.getFontSize(); if (srcFontSize == null) { if (getFontSize() != null) { setFontSize(null); } } else if(!srcFontSize.equals(getFontSize())) { setFontSize(srcFontSize); } boolean bold = r.isBold(); if(bold != isBold()) { setBold(bold); } boolean italic = r.isItalic(); if(italic != isItalic()) { setItalic(italic); } boolean underline = r.isUnderlined(); if(underline != isUnderlined()) { setUnderlined(underline); } boolean strike = r.isStrikethrough(); if(strike != isStrikethrough()) { setStrikethrough(strike); } XSLFHyperlink hyperSrc = r.getHyperlink(); if (hyperSrc != null) { XSLFHyperlink hyperDst = getHyperlink(); hyperDst.copy(hyperSrc); } } @Override public FieldType getFieldType() { if (_r instanceof CTTextField) { CTTextField tf = (CTTextField)_r; if ("slidenum".equals(tf.getType())) { return FieldType.SLIDE_NUMBER; } } return null; } private final class XSLFFontInfo implements FontInfo { private final FontGroup fontGroup; private XSLFFontInfo(FontGroup fontGroup) { this.fontGroup = (fontGroup != null) ? fontGroup : FontGroup.getFontGroupFirst(getRawText()); } void copyFrom(FontInfo fontInfo) { CTTextFont tf = getXmlObject(true); if (tf == null) { return; } setTypeface(fontInfo.getTypeface()); setCharset(fontInfo.getCharset()); FontPitch pitch = fontInfo.getPitch(); FontFamily family = fontInfo.getFamily(); if (pitch == null && family == null) { if (tf.isSetPitchFamily()) { tf.unsetPitchFamily(); } } else { setPitch(pitch); setFamily(family); } } @Override public String getTypeface() { CTTextFont tf = getXmlObject(false); return (tf != null) ? tf.getTypeface() : null; } @Override public void setTypeface(String typeface) { if (typeface != null) { final CTTextFont tf = getXmlObject(true); if (tf != null) { tf.setTypeface(typeface); } return; } CTTextCharacterProperties props = getRPr(false); if (props == null) { return; } FontGroup fg = FontGroup.getFontGroupFirst(getRawText()); switch (fg) { default: case LATIN: if (props.isSetLatin()) { props.unsetLatin(); } break; case EAST_ASIAN: if (props.isSetEa()) { props.unsetEa(); } break; case COMPLEX_SCRIPT: if (props.isSetCs()) { props.unsetCs(); } break; case SYMBOL: if (props.isSetSym()) { props.unsetSym(); } break; } } @Override public FontCharset getCharset() { CTTextFont tf = getXmlObject(false); return (tf != null && tf.isSetCharset()) ? FontCharset.valueOf(tf.getCharset()&0xFF) : null; } @Override public void setCharset(FontCharset charset) { CTTextFont tf = getXmlObject(true); if (tf == null) { return; } if (charset != null) { tf.setCharset((byte)charset.getNativeId()); } else { if (tf.isSetCharset()) { tf.unsetCharset(); } } } @Override public FontFamily getFamily() { CTTextFont tf = getXmlObject(false); return (tf != null && tf.isSetPitchFamily()) ? FontFamily.valueOfPitchFamily(tf.getPitchFamily()) : null; } @Override public void setFamily(FontFamily family) { CTTextFont tf = getXmlObject(true); if (tf == null || (family == null && !tf.isSetPitchFamily())) { return; } FontPitch pitch = (tf.isSetPitchFamily()) ? FontPitch.valueOfPitchFamily(tf.getPitchFamily()) : FontPitch.VARIABLE; byte pitchFamily = FontPitch.getNativeId(pitch, family != null ? family : FontFamily.FF_SWISS); tf.setPitchFamily(pitchFamily); } @Override public FontPitch getPitch() { CTTextFont tf = getXmlObject(false); return (tf != null && tf.isSetPitchFamily()) ? FontPitch.valueOfPitchFamily(tf.getPitchFamily()) : null; } @Override public void setPitch(FontPitch pitch) { CTTextFont tf = getXmlObject(true); if (tf == null || (pitch == null && !tf.isSetPitchFamily())) { return; } FontFamily family = (tf.isSetPitchFamily()) ? FontFamily.valueOfPitchFamily(tf.getPitchFamily()) : FontFamily.FF_SWISS; byte pitchFamily = FontPitch.getNativeId(pitch != null ? pitch : FontPitch.VARIABLE, family); tf.setPitchFamily(pitchFamily); } private CTTextFont getXmlObject(boolean create) { if (create) { return getCTTextFont(getRPr(true), true); } return fetchCharacterProperty((props, val) -> { CTTextFont font = getCTTextFont(props, false); if (font != null) { val.accept(font); } }); } private CTTextFont getCTTextFont(CTTextCharacterProperties props, boolean create) { if (props == null) { return null; } CTTextFont font; switch (fontGroup) { default: case LATIN: font = props.getLatin(); if (font == null && create) { font = props.addNewLatin(); } break; case EAST_ASIAN: font = props.getEa(); if (font == null && create) { font = props.addNewEa(); } break; case COMPLEX_SCRIPT: font = props.getCs(); if (font == null && create) { font = props.addNewCs(); } break; case SYMBOL: font = props.getSym(); if (font == null && create) { font = props.addNewSym(); } break; } if (font == null) { return null; } String typeface = font.getTypeface(); if (typeface == null) { typeface = ""; } if (typeface.startsWith("+mj-") || typeface.startsWith("+mn-")) { // "+mj-lt".equals(typeface) || "+mn-lt".equals(typeface) final XSLFTheme theme = _p.getParentShape().getSheet().getTheme(); CTFontScheme fontTheme = theme.getXmlObject().getThemeElements().getFontScheme(); CTFontCollection coll = typeface.startsWith("+mj-") ? fontTheme.getMajorFont() : fontTheme.getMinorFont(); // TODO: handle LCID codes // see https://blogs.msdn.microsoft.com/officeinteroperability/2013/04/22/office-open-xml-themes-schemes-and-fonts/ String fgStr = typeface.substring(4); if ("ea".equals(fgStr)) { font = coll.getEa(); } else if ("cs".equals(fgStr)) { font = coll.getCs(); } else { font = coll.getLatin(); } // SYMBOL is missing if (font == null || font.getTypeface() == null || "".equals(font.getTypeface())) { // don't fallback to latin but bubble up in the style hierarchy (slide -> layout -> master -> theme) return null; // font = coll.getLatin(); } } return font; } } @Override public XSLFTextParagraph getParagraph() { return _p; } }




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