Examples of org.apache.fop.layout.BlockArea

org.apache.fop.layout.BlockArea
This class represents a Block Area. A block area is made up of a sequence of Line Areas. This class is used to organise the sequence of line areas as inline areas are added to this block it creates and ands line areas to hold the inline areas. This uses the line-height and line-stacking-strategy to work out how to stack the lines.


    }




    public Status layout(Area area) throws FOPException {
        BlockArea blockArea;
        if (!(area instanceof BlockArea)) {
            log.warn("currently Character can only be in a BlockArea");
            return new Status(Status.OK);
        }
        blockArea = (BlockArea)area;
        boolean textDecoration;


        // Common Aural Properties
        AuralProps mAurProps = propMgr.getAuralProps();


        // Common Border, Padding, and Background Properties
        BorderAndPadding bap = propMgr.getBorderAndPadding();
        BackgroundProps bProps = propMgr.getBackgroundProps();


        // Common Font Properties
        //this.fontState = propMgr.getFontState(area.getFontInfo());


        // Common Hyphenation Properties
        HyphenationProps mHyphProps = propMgr.getHyphenationProps();


        // Common Margin Properties-Inline
        MarginInlineProps mProps = propMgr.getMarginInlineProps();


        // Common Relative Position Properties
        RelativePositionProps mRelProps = propMgr.getRelativePositionProps();


        // this.properties.get("alignment-adjust");
        // this.properties.get("treat-as-word-space");
        // this.properties.get("alignment-baseline");
        // this.properties.get("baseline-shift");
        // this.properties.get("character");
        // this.properties.get("color");
        // this.properties.get("dominant-baseline");
        // this.properties.get("text-depth");
        // this.properties.get("text-altitude");
        // this.properties.get("glyph-orientation-horizontal");
        // this.properties.get("glyph-orientation-vertical");
        // this.properties.get("id");
        // this.properties.get("keep-with-next");
        // this.properties.get("keep-with-previous");
        // this.properties.get("letter-spacing");
        // this.properties.get("line-height");
        // this.properties.get("line-height-shift-adjustment");
        // this.properties.get("score-spaces");
        // this.properties.get("suppress-at-line-break");
        // this.properties.get("text-decoration");
        // this.properties.get("text-shadow");
        // this.properties.get("text-transform");
        // this.properties.get("word-spacing");


        // color properties
        ColorType c = this.properties.get("color").getColorType();
        float red = c.red();
        float green = c.green();
        float blue = c.blue();


        int whiteSpaceCollapse =
            this.properties.get("white-space-collapse").getEnum();
        int wrapOption = this.parent.properties.get("wrap-option").getEnum();


        int tmp = this.properties.get("text-decoration").getEnum();
        if (tmp == org.apache.fop.fo.properties.TextDecoration.UNDERLINE) {
            textDecoration = true;
        } else {
            textDecoration = false;
        }


        // Character specific properties
        char characterValue = this.properties.get("character").getCharacter();




        // initialize id
        String id = this.properties.get("id").getString();
        blockArea.getIDReferences().initializeID(id, blockArea);


        LineArea la = blockArea.getCurrentLineArea();
        if (la == null) {
            return new Status(Status.AREA_FULL_NONE);
        }
        la.changeFont(propMgr.getFontState(area.getFontInfo()));
        la.changeColor(red, green, blue);
        la.changeWrapOption(wrapOption);
        la.changeWhiteSpaceCollapse(whiteSpaceCollapse);
        blockArea.setupLinkSet(this.getLinkSet());
        int result = la.addCharacter(characterValue, this.getLinkSet(),
                                     textDecoration);
        if (result == Character.DOESNOT_FIT) {
            la = blockArea.createNextLineArea();
            if (la == null) {
                return new Status(Status.AREA_FULL_NONE);
            }
            la.changeFont(propMgr.getFontState(area.getFontInfo()));
            la.changeColor(red, green, blue);
            la.changeWrapOption(wrapOption);
            la.changeWhiteSpaceCollapse(whiteSpaceCollapse);
            blockArea.setupLinkSet(this.getLinkSet());
            la.addCharacter(characterValue, this.getLinkSet(),
                            textDecoration);
        }
        return new Status(Status.OK);

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        super(parent, propertyList);
        this.name = "fo:leader";
    }


    public Status layout(Area area) throws FOPException {
        BlockArea blockArea;
        // restriction in this version
        if (!(area instanceof BlockArea)) {
            log.warn("in this version of Fop fo:leader must be a direct child of fo:block ");
            return new Status(Status.OK);
        } else {
            blockArea = (BlockArea)area;
        }


        // Common Accessibility Properties
        AccessibilityProps mAccProps = propMgr.getAccessibilityProps();


        // Common Aural Properties
        AuralProps mAurProps = propMgr.getAuralProps();


        // Common Border, Padding, and Background Properties
        BorderAndPadding bap = propMgr.getBorderAndPadding();
        BackgroundProps bProps = propMgr.getBackgroundProps();


        // Common Font Properties
        //this.fontState = propMgr.getFontState(area.getFontInfo());


        // Common Margin Properties-Inline
        MarginInlineProps mProps = propMgr.getMarginInlineProps();


        // Common Relative Position Properties
        RelativePositionProps mRelProps = propMgr.getRelativePositionProps();


        // this.properties.get("alignment-adjust");
        // this.properties.get("alignment-baseline");
        // this.properties.get("baseline-shift");
        // this.properties.get("color");
        // this.properties.get("dominant-baseline");
        // this.properties.get("text-depth");
        // this.properties.get("text-altitude");
        // this.properties.get("id");
        // this.properties.get("leader-alignment");
        // this.properties.get("leader-length");
        // this.properties.get("leader-pattern");
        // this.properties.get("leader-pattern-width");
        // this.properties.get("rule-style");
        // this.properties.get("rule-thickness");
        // this.properties.get("letter-spacing");
        // this.properties.get("line-height");
        // this.properties.get("line-height-shift-adjustment");
        // this.properties.get("text-shadow");
        // this.properties.get("visibility");
        // this.properties.get("word-spacing");
        // this.properties.get("z-index");


        // color properties
        ColorType c = this.properties.get("color").getColorType();
        float red = c.red();
        float green = c.green();
        float blue = c.blue();


        // fo:leader specific properties
        // determines the pattern of leader; allowed values: space, rule,dots, use-content
        int leaderPattern = this.properties.get("leader-pattern").getEnum();
        // length of the leader
        int leaderLengthOptimum =
            this.properties.get("leader-length.optimum").getLength().mvalue();
        int leaderLengthMinimum =
            this.properties.get("leader-length.minimum").getLength().mvalue();
        Length maxlength = this.properties.get("leader-length.maximum").getLength();
        int leaderLengthMaximum;
        if(maxlength instanceof PercentLength) {
            leaderLengthMaximum = (int)(((PercentLength)maxlength).value()
                                      * area.getAllocationWidth());
        } else {
            leaderLengthMaximum = maxlength.mvalue();
        }
        // the following properties only apply for leader-pattern = "rule"
        int ruleThickness =
            this.properties.get("rule-thickness").getLength().mvalue();
        int ruleStyle = this.properties.get("rule-style").getEnum();
        // if leaderPatternWidth = 0 = default = use-font-metric
        int leaderPatternWidth =
            this.properties.get("leader-pattern-width").getLength().mvalue();
        int leaderAlignment =
            this.properties.get("leader-alignment").getEnum();


        // initialize id
        String id = this.properties.get("id").getString();
        blockArea.getIDReferences().initializeID(id, blockArea);


        // adds leader to blockarea, there the leaderArea is generated
        int succeeded = addLeader(blockArea,
                                  propMgr.getFontState(area.getFontInfo()),
                                  red, green, blue, leaderPattern,

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        if (this.areaCurrent == null) {
            return Status.OK;
        }


        if (area instanceof BlockArea) {
            BlockArea ba = (BlockArea)area;
            LineArea la = ba.getCurrentLineArea();
            if (la == null) {
                return Status.AREA_FULL_NONE;
            }
            la.addPending();
            if (areaCurrent.getEffectiveWidth() > la.getRemainingWidth()) {
                la = ba.createNextLineArea();
                if (la == null) {
                    return Status.AREA_FULL_NONE;
                }
            }
            la.addInlineArea(areaCurrent, this.getLinkSet());

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                }
                throw e;
            }
        }


        BlockArea blockArea =
            new BlockArea(propMgr.getFontState(area.getFontInfo()),
                          area.getAllocationWidth(), area.spaceLeft(),
                          startIndent, endIndent, 0, align, alignLast,
                          lineHeight);
        // Fix links in lists in tables problem
        blockArea.setTableCellXOffset(area.getTableCellXOffset());
        blockArea.setGeneratedBy(this);
        this.areasGenerated++;
        if (this.areasGenerated == 1)
            blockArea.isFirst(true);
            // for normal areas this should be the only pair
//        blockArea.addLineagePair(this, this.areasGenerated);


        // markers
//         if (this.hasMarkers())
//             blockArea.addMarkers(this.getMarkers());




        blockArea.setParent(area);
        blockArea.setPage(area.getPage());
        blockArea.setBackground(propMgr.getBackgroundProps());
        blockArea.start();


        blockArea.setAbsoluteHeight(area.getAbsoluteHeight());
        blockArea.setIDReferences(area.getIDReferences());


        int numChildren = this.children.size();
        for (int i = this.marker; i < numChildren; i++) {
            if (!(children.get(i) instanceof ListItem)) {
                log.error("children of list-blocks must be list-items");
                return Status.OK;
            }
            ListItem listItem = (ListItem)children.get(i);
            int status;
            if (Status.isIncomplete((status = listItem.layout(blockArea)))) {
                if (status == Status.AREA_FULL_NONE && i > 0) {
                    status = Status.AREA_FULL_SOME;
                }
                this.marker = i;
                blockArea.end();
                area.addChild(blockArea);
                area.increaseHeight(blockArea.getHeight());
                return status;
            }
        }


        blockArea.end();
        area.addChild(blockArea);
        area.increaseHeight(blockArea.getHeight());


        if (spaceAfter != 0) {
            area.addDisplaySpace(spaceAfter);
        }


        if (area instanceof BlockArea) {
            area.start();
        }


        blockArea.isLast(true);
        return Status.OK;
    }

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    public String getName() {
        return "fo:character";
    }


    public int layout(Area area) throws FOPException {
        BlockArea blockArea;
        if (!(area instanceof BlockArea)) {
            log.warn("currently Character can only be in a BlockArea");
            return Status.OK;
        }
        blockArea = (BlockArea)area;
        boolean textDecoration;


        // Common Aural Properties
        AuralProps mAurProps = propMgr.getAuralProps();


        // Common Border, Padding, and Background Properties
        BorderAndPadding bap = propMgr.getBorderAndPadding();
        BackgroundProps bProps = propMgr.getBackgroundProps();


        // Common Font Properties
        //this.fontState = propMgr.getFontState(area.getFontInfo());


        // Common Hyphenation Properties
        HyphenationProps mHyphProps = propMgr.getHyphenationProps();


        // Common Margin Properties-Inline
        MarginInlineProps mProps = propMgr.getMarginInlineProps();


        // Common Relative Position Properties
        RelativePositionProps mRelProps = propMgr.getRelativePositionProps();


        // this.properties.get("alignment-adjust");
        // this.properties.get("treat-as-word-space");
        // this.properties.get("alignment-baseline");
        // this.properties.get("baseline-shift");
        // this.properties.get("character");
        // this.properties.get("color");
        // this.properties.get("dominant-baseline");
        // this.properties.get("text-depth");
        // this.properties.get("text-altitude");
        // this.properties.get("glyph-orientation-horizontal");
        // this.properties.get("glyph-orientation-vertical");
        // this.properties.get("id");
        // this.properties.get("keep-with-next");
        // this.properties.get("keep-with-previous");
        // this.properties.get("letter-spacing");
        // this.properties.get("line-height");
        // this.properties.get("line-height-shift-adjustment");
        // this.properties.get("score-spaces");
        // this.properties.get("suppress-at-line-break");
        // this.properties.get("text-decoration");
        // this.properties.get("text-shadow");
        // this.properties.get("text-transform");
        // this.properties.get("word-spacing");


        // color properties
        ColorType c = this.properties.get("color").getColorType();
        float red = c.red();
        float green = c.green();
        float blue = c.blue();


        int whiteSpaceCollapse =
            this.properties.get("white-space-collapse").getEnum();
        int wrapOption = this.parent.properties.get("wrap-option").getEnum();


        int tmp = this.properties.get("text-decoration").getEnum();
        if (tmp == org.apache.fop.fo.properties.TextDecoration.UNDERLINE) {
            textDecoration = true;
        } else {
            textDecoration = false;
        }


        // Character specific properties
        char characterValue = this.properties.get("character").getCharacter();




        // initialize id
        String id = this.properties.get("id").getString();
        try {
            blockArea.getIDReferences().initializeID(id, blockArea);
        }
        catch(FOPException e) {
            if (!e.isLocationSet()) {
                e.setLocation(systemId, line, column);
            }
            throw e;
        }


        LineArea la = blockArea.getCurrentLineArea();
        if (la == null) {
            return Status.AREA_FULL_NONE;
        }
        la.changeFont(propMgr.getFontState(area.getFontInfo()));
        la.changeColor(red, green, blue);
        la.changeWrapOption(wrapOption);
        la.changeWhiteSpaceCollapse(whiteSpaceCollapse);
        blockArea.setupLinkSet(this.getLinkSet());
        int result = la.addCharacter(characterValue, this.getLinkSet(),
                                     textDecoration);
        if (result == Character.DOESNOT_FIT) {
            la = blockArea.createNextLineArea();
            if (la == null) {
                return Status.AREA_FULL_NONE;
            }
            la.changeFont(propMgr.getFontState(area.getFontInfo()));
            la.changeColor(red, green, blue);
            la.changeWrapOption(wrapOption);
            la.changeWhiteSpaceCollapse(whiteSpaceCollapse);
            blockArea.setupLinkSet(this.getLinkSet());
            la.addCharacter(characterValue, this.getLinkSet(),
                            textDecoration);
        }
        return Status.OK;

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        if (spaceBefore != 0) {
            area.addDisplaySpace(spaceBefore);
        }


        this.blockArea =
            new BlockArea(propMgr.getFontState(area.getFontInfo()),
                          area.getAllocationWidth(), area.spaceLeft(), 0, 0,
                          0, align, alignLast, lineHeight);


        // Fix links in lists in tables problem
        blockArea.setTableCellXOffset(area.getTableCellXOffset());

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    public String getName() {
        return "fo:leader";
    }


    public int layout(Area area) throws FOPException {
        BlockArea blockArea;
        // restriction in this version
        if (!(area instanceof BlockArea)) {
            log.warn("in this version of Fop fo:leader must be a direct child of fo:block ");
            return Status.OK;
        } else {
            blockArea = (BlockArea)area;
        }


        // Common Accessibility Properties
        AccessibilityProps mAccProps = propMgr.getAccessibilityProps();


        // Common Aural Properties
        AuralProps mAurProps = propMgr.getAuralProps();


        // Common Border, Padding, and Background Properties
        BorderAndPadding bap = propMgr.getBorderAndPadding();
        BackgroundProps bProps = propMgr.getBackgroundProps();


        // Common Font Properties
        //this.fontState = propMgr.getFontState(area.getFontInfo());


        // Common Margin Properties-Inline
        MarginInlineProps mProps = propMgr.getMarginInlineProps();


        // Common Relative Position Properties
        RelativePositionProps mRelProps = propMgr.getRelativePositionProps();


        // this.properties.get("alignment-adjust");
        // this.properties.get("alignment-baseline");
        // this.properties.get("baseline-shift");
        // this.properties.get("color");
        // this.properties.get("dominant-baseline");
        // this.properties.get("text-depth");
        // this.properties.get("text-altitude");
        // this.properties.get("id");
        // this.properties.get("leader-alignment");
        // this.properties.get("leader-length");
        // this.properties.get("leader-pattern");
        // this.properties.get("leader-pattern-width");
        // this.properties.get("rule-style");
        // this.properties.get("rule-thickness");
        // this.properties.get("letter-spacing");
        // this.properties.get("line-height");
        // this.properties.get("line-height-shift-adjustment");
        // this.properties.get("text-shadow");
        // this.properties.get("visibility");
        // this.properties.get("word-spacing");
        // this.properties.get("z-index");


        // color properties
        ColorType c = this.properties.get("color").getColorType();
        float red = c.red();
        float green = c.green();
        float blue = c.blue();


        // fo:leader specific properties
        // determines the pattern of leader; allowed values: space, rule,dots, use-content
        int leaderPattern = this.properties.get("leader-pattern").getEnum();
        // length of the leader
        Length length = this.properties.get("leader-length.minimum").getLength();
        int leaderLengthMinimum;
        if (length instanceof PercentLength) {
            leaderLengthMinimum = (int)(((PercentLength)length).value()
                                        * area.getAllocationWidth());
        } else {
            leaderLengthMinimum = length.mvalue();
        }
        length = this.properties.get("leader-length.optimum").getLength();
        int leaderLengthOptimum;
        if (length instanceof PercentLength) {
            leaderLengthOptimum = (int)(((PercentLength)length).value()
                                      * area.getAllocationWidth());
        } else {
            leaderLengthOptimum = length.mvalue();
        }
        length = this.properties.get("leader-length.maximum").getLength();
        int leaderLengthMaximum;
        if (length instanceof PercentLength) {
            leaderLengthMaximum = (int)(((PercentLength)length).value()
                                      * area.getAllocationWidth());
        } else {
            leaderLengthMaximum = length.mvalue();
        }
        // the following properties only apply for leader-pattern = "rule"
        int ruleThickness =
            this.properties.get("rule-thickness").getLength().mvalue();
        int ruleStyle = this.properties.get("rule-style").getEnum();
        // if leaderPatternWidth = 0 = default = use-font-metric
        int leaderPatternWidth =
            this.properties.get("leader-pattern-width").getLength().mvalue();
        int leaderAlignment =
            this.properties.get("leader-alignment").getEnum();


        // initialize id
        String id = this.properties.get("id").getString();
        try {
            blockArea.getIDReferences().initializeID(id, blockArea);
        }
        catch(FOPException e) {
            if (!e.isLocationSet()) {
                e.setLocation(systemId, line, column);
            }

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    return new Status(Status.FORCE_PAGE_BREAK_EVEN);
    }
  }


    if (area instanceof BlockArea) {
            BlockArea ba = (BlockArea)area;
            LineArea la = ba.getCurrentLineArea();
            if(la == null) {
                return new Status(Status.AREA_FULL_NONE);
            }
            la.addPending();
            if(areaCurrent.getEffectiveWidth() > la.getRemainingWidth()) {
                la = ba.createNextLineArea();
                if(la == null) {
                    return new Status(Status.AREA_FULL_NONE);
                }
            }
            la.addInlineArea(areaCurrent);

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            // initialize id
            String id = this.properties.get("id").getString();
            area.getIDReferences().initializeID(id, area);
        }


        BlockArea blockArea = new BlockArea(propMgr.getFontState(area.getFontInfo()),
                    area.getAllocationWidth(),
                                            area.spaceLeft(), startIndent, endIndent, 0, align,
                                            alignLast, lineHeight);
        blockArea.setPage(area.getPage());
        blockArea.setBackgroundColor(backgroundColor);
        blockArea.start();


        blockArea.setAbsoluteHeight(area.getAbsoluteHeight());
        blockArea.setIDReferences(area.getIDReferences());


        int numChildren = this.children.size();
        for (int i = this.marker; i < numChildren; i++) {
            if (!(children.elementAt(i) instanceof ListItem)) {
                MessageHandler.errorln("children of list-blocks must be list-items");
                return new Status(Status.OK);
            }
            ListItem listItem = (ListItem) children.elementAt(i);
            Status status;
            if ((status = listItem.layout(blockArea)).isIncomplete()) {
                if(status.getCode() == Status.AREA_FULL_NONE && i > 0) {
                    status = new Status(Status.AREA_FULL_SOME);
                }
                this.marker = i;
                blockArea.end();
                area.addChild(blockArea);
                area.increaseHeight(blockArea.getHeight());
                area.setAbsoluteHeight(blockArea.getAbsoluteHeight());
                return status;
            }
        }


        blockArea.end();
        area.addChild(blockArea);
        area.increaseHeight(blockArea.getHeight());
        area.setAbsoluteHeight(blockArea.getAbsoluteHeight());


        if (spaceAfter != 0) {
            area.addDisplaySpace(spaceAfter);
        }

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        }
    }




    public Status layout(Area area) throws FOPException {
        BlockArea blockArea;
        blockArea = (BlockArea) area;
        boolean textDecoration;


        //color properties
        ColorType c = this.properties.get("color").getColorType();
        float red = c.red();
        float green = c.green();
        float blue = c.blue();


        int whiteSpaceCollapse = this.properties.get(
                                    "white-space-collapse").getEnum();
        int wrapOption = this.parent.properties.get("wrap-option").getEnum();


        int tmp = this.properties.get("text-decoration").getEnum();
        if (tmp == org.apache.fop.fo.properties.TextDecoration.UNDERLINE) {
          textDecoration = true;
        } else {
          textDecoration = false;
        }


        //Character specific properties
        char characterValue = this.properties.get("character").getCharacter();




        // initialize id
        String id = this.properties.get("id").getString();
        blockArea.getIDReferences().initializeID(id, blockArea);


        LineArea la = blockArea.getCurrentLineArea();
        if(la == null) {
            return new Status(Status.AREA_FULL_NONE);
        }
        la.changeFont(propMgr.getFontState(area.getFontInfo()));
        la.changeColor(red, green, blue);
        la.changeWrapOption(wrapOption);
        la.changeWhiteSpaceCollapse(whiteSpaceCollapse);
        blockArea.setupLinkSet(this.getLinkSet());
        int result = la.addCharacter(characterValue, this.getLinkSet(), textDecoration);
        if (result == Character.DOESNOT_FIT) {
            la = blockArea.createNextLineArea();
            if(la == null) {
                return new Status(Status.AREA_FULL_NONE);
            }
            la.changeFont(propMgr.getFontState(area.getFontInfo()));
            la.changeColor(red, green, blue);
            la.changeWrapOption(wrapOption);
            la.changeWhiteSpaceCollapse(whiteSpaceCollapse);
            blockArea.setupLinkSet(this.getLinkSet());
            la.addCharacter(characterValue, this.getLinkSet(), textDecoration);
        }
        return new Status(Status.OK);


    }

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Related Classes of org.apache.fop.layout.BlockArea

org.apache.fop.fo.flow.Character

org.apache.fop.fo.flow.InstreamForeignObject

org.apache.fop.fo.flow.Leader

org.apache.fop.fo.flow.ListBlock

org.apache.fop.fo.flow.ListItem

java.util.ArrayList

java.util.Vector

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