コード例 #1
0
ファイル: Block.cs プロジェクト: nholik/Fo.Net
        public override Status Layout(Area area)
        {
            BlockArea blockArea;

            if (this.marker == MarkerBreakAfter)
            {
                return new Status(Status.OK);
            }

            if (this.marker == MarkerStart)
            {
                AccessibilityProps mAccProps = propMgr.GetAccessibilityProps();
                AuralProps mAurProps = propMgr.GetAuralProps();
                BorderAndPadding bap = propMgr.GetBorderAndPadding();
                BackgroundProps bProps = propMgr.GetBackgroundProps();
                HyphenationProps mHyphProps = propMgr.GetHyphenationProps();
                MarginProps mProps = propMgr.GetMarginProps();
                RelativePositionProps mRelProps = propMgr.GetRelativePositionProps();

                this.align = this.properties.GetProperty("text-align").GetEnum();
                this.alignLast = this.properties.GetProperty("text-align-last").GetEnum();
                this.breakAfter = this.properties.GetProperty("break-after").GetEnum();
                this.lineHeight =
                    this.properties.GetProperty("line-height").GetLength().MValue();
                this.startIndent =
                    this.properties.GetProperty("start-indent").GetLength().MValue();
                this.endIndent =
                    this.properties.GetProperty("end-indent").GetLength().MValue();
                this.spaceBefore =
                    this.properties.GetProperty("space-before.optimum").GetLength().MValue();
                this.spaceAfter =
                    this.properties.GetProperty("space-after.optimum").GetLength().MValue();
                this.textIndent =
                    this.properties.GetProperty("text-indent").GetLength().MValue();
                this.keepWithNext =
                    this.properties.GetProperty("keep-with-next").GetEnum();

                this.blockWidows =
                    this.properties.GetProperty("widows").GetNumber().IntValue();
                this.blockOrphans = (int)
                    this.properties.GetProperty("orphans").GetNumber().IntValue();
                this.id = this.properties.GetProperty("id").GetString();

                if (area is BlockArea)
                {
                    area.end();
                }

                if (area.getIDReferences() != null)
                {
                    area.getIDReferences().CreateID(id);
                }

                this.marker = 0;

                int breakBeforeStatus = propMgr.CheckBreakBefore(area);
                if (breakBeforeStatus != Status.OK)
                {
                    return new Status(breakBeforeStatus);
                }

                int numChildren = this.children.Count;
                for (int i = 0; i < numChildren; i++)
                {
                    FONode fo = (FONode)children[i];
                    if (fo is FOText)
                    {
                        if (((FOText)fo).willCreateArea())
                        {
                            fo.SetWidows(blockWidows);
                            break;
                        }
                        else
                        {
                            children.RemoveAt(i);
                            numChildren = this.children.Count;
                            i--;
                        }
                    }
                    else
                    {
                        fo.SetWidows(blockWidows);
                        break;
                    }
                }

                for (int i = numChildren - 1; i >= 0; i--)
                {
                    FONode fo = (FONode)children[i];
                    if (fo is FOText)
                    {
                        if (((FOText)fo).willCreateArea())
                        {
                            fo.SetOrphans(blockOrphans);
                            break;
                        }
                    }
                    else
                    {
                        fo.SetOrphans(blockOrphans);
                        break;
                    }
                }
            }

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

            if (anythingLaidOut)
            {
                this.textIndent = 0;
            }

            if (marker == 0 && area.getIDReferences() != null)
            {
                area.getIDReferences().ConfigureID(id, area);
            }

            int spaceLeft = area.spaceLeft();
            blockArea =
                new BlockArea(propMgr.GetFontState(area.getFontInfo()),
                              area.getAllocationWidth(), area.spaceLeft(),
                              startIndent, endIndent, textIndent, align,
                              alignLast, lineHeight);
            blockArea.setGeneratedBy(this);
            this.areasGenerated++;
            if (this.areasGenerated == 1)
            {
                blockArea.isFirst(true);
            }
            blockArea.addLineagePair(this, this.areasGenerated);
            blockArea.setParent(area);
            blockArea.setPage(area.getPage());
            blockArea.setBackground(propMgr.GetBackgroundProps());
            blockArea.setBorderAndPadding(propMgr.GetBorderAndPadding());
            blockArea.setHyphenation(propMgr.GetHyphenationProps());
            blockArea.start();

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

            blockArea.setTableCellXOffset(area.getTableCellXOffset());

            for (int i = this.marker; i < children.Count; i++)
            {
                FONode fo = (FONode)children[i];
                Status status;
                if ((status = fo.Layout(blockArea)).isIncomplete())
                {
                    this.marker = i;
                    if (status.getCode() == Status.AREA_FULL_NONE)
                    {
                        if ((i != 0))
                        {
                            status = new Status(Status.AREA_FULL_SOME);
                            area.addChild(blockArea);
                            area.setMaxHeight(area.getMaxHeight() - spaceLeft
                                + blockArea.getMaxHeight());
                            area.increaseHeight(blockArea.GetHeight());
                            anythingLaidOut = true;

                            return status;
                        }
                        else
                        {
                            anythingLaidOut = false;
                            return status;
                        }
                    }
                    area.addChild(blockArea);
                    area.setMaxHeight(area.getMaxHeight() - spaceLeft
                        + blockArea.getMaxHeight());
                    area.increaseHeight(blockArea.GetHeight());
                    anythingLaidOut = true;
                    return status;
                }
                anythingLaidOut = true;
            }

            blockArea.end();

            area.setMaxHeight(area.getMaxHeight() - spaceLeft
                + blockArea.getMaxHeight());

            area.addChild(blockArea);

            area.increaseHeight(blockArea.GetHeight());

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

            if (area is BlockArea)
            {
                area.start();
            }
            areaHeight = blockArea.GetHeight();
            contentWidth = blockArea.getContentWidth();
            int breakAfterStatus = propMgr.CheckBreakAfter(area);
            if (breakAfterStatus != Status.OK)
            {
                this.marker = MarkerBreakAfter;
                blockArea = null;
                return new Status(breakAfterStatus);
            }

            if (keepWithNext != 0)
            {
                blockArea = null;
                return new Status(Status.KEEP_WITH_NEXT);
            }

            blockArea.isLast(true);
            blockArea = null;
            return new Status(Status.OK);
        }