Examples with LineBreakMeasurer java.awt.font.LineBreakMeasurer used on opensource projects

Example 16 with LineBreakMeasurer

use of java.awt.font.LineBreakMeasurer in project adempiere by adempiere.

the class TableElement method calculateSize.

/**************************************************************************
	 * 	Layout and Calculate Size.
	 * 	Set p_width & p_height
	 * 	@return true if calculated
	 */
protected boolean calculateSize() {
    if (p_sizeCalculated)
        return true;
    p_width = 0;
    //	reset
    m_printRows = new ArrayList<ArrayList<ArrayList<Object>>>(m_data.length);
    //	Max Column Width = 50% of available width (used if maxWidth not set)
    float dynMxColumnWidth = m_firstPage.width / 2;
    //	Width caolculation
    int rows = m_data.length;
    int cols = m_columnHeader.length;
    //	Data Sizes and Header Sizes
    Dimension2DImpl[][] dataSizes = new Dimension2DImpl[rows][cols];
    Dimension2DImpl[] headerSizes = new Dimension2DImpl[cols];
    FontRenderContext frc = new FontRenderContext(null, true, true);
    //	data columns - rows
    for (int dataCol = 0; dataCol < cols; dataCol++) {
        int col = dataCol;
        //	Print below existing column
        if (m_additionalLines.containsKey(new Integer(dataCol))) {
            col = ((Integer) m_additionalLines.get(new Integer(dataCol))).intValue();
            log.finest("DataColumn=" + dataCol + ", BelowColumn=" + col);
        }
        float colWidth = 0;
        for (int row = 0; row < rows; row++) {
            Object dataItem = m_data[row][dataCol];
            if (dataItem == null) {
                dataSizes[row][dataCol] = new Dimension2DImpl();
                continue;
            }
            String string = dataItem.toString();
            if (string.length() == 0) {
                dataSizes[row][dataCol] = new Dimension2DImpl();
                continue;
            }
            Font font = getFont(row, dataCol);
            //	Print below existing column = (col != dataCol)
            addPrintLines(row, col, dataItem);
            //	don't print
            dataSizes[row][dataCol] = new Dimension2DImpl();
            if (dataItem instanceof Boolean) {
                dataSizes[row][col].addBelow(LayoutEngine.IMAGE_SIZE);
                continue;
            } else if (dataItem instanceof ImageElement) {
                dataSizes[row][col].addBelow(new Dimension((int) ((ImageElement) dataItem).getWidth(), (int) ((ImageElement) dataItem).getHeight()));
                // Adjust the column width - teo_sarca, [ 1673620 ]
                float width = (float) Math.ceil(dataSizes[row][col].getWidth());
                if (colWidth < width)
                    colWidth = width;
                continue;
            } else if (dataItem instanceof BarcodeElement) {
                dataSizes[row][col].addBelow(new Dimension((int) ((BarcodeElement) dataItem).getWidth(), (int) ((BarcodeElement) dataItem).getHeight()));
                // Check if the overflow is allowed - teo_sarca, [ 1673590 ]
                if (!((BarcodeElement) dataItem).isAllowOverflow()) {
                    float width = (float) Math.ceil(dataSizes[row][col].getWidth());
                    if (colWidth < width)
                        colWidth = width;
                }
                continue;
            }
            //	No Width Limitations
            if (m_columnMaxWidth[col] == 0 || m_columnMaxWidth[col] == -1) {
                //	if (HTMLElement.isHTML(string))
                //		log.finest( "HTML (no) r=" + row + ",c=" + dataCol); 
                TextLayout layout = new TextLayout(string, font, frc);
                //	buffer
                float width = layout.getAdvance() + 2;
                float height = layout.getAscent() + layout.getDescent() + layout.getLeading();
                if (width > dynMxColumnWidth)
                    m_columnMaxWidth[col] = (int) Math.ceil(dynMxColumnWidth);
                else if (colWidth < width)
                    colWidth = width;
                if (dataSizes[row][col] == null) {
                    dataSizes[row][col] = new Dimension2DImpl();
                    log.log(Level.WARNING, "No Size for r=" + row + ",c=" + col);
                }
                dataSizes[row][col].addBelow(width, height);
            }
            //	Width limitations
            if (m_columnMaxWidth[col] != 0 && m_columnMaxWidth[col] != -1) {
                float height = 0;
                //
                if (HTMLElement.isHTML(string)) {
                    //	log.finest( "HTML (limit) r=" + row + ",c=" + dataCol);
                    HTMLRenderer renderer = HTMLRenderer.get(string);
                    colWidth = renderer.getWidth();
                    if (//	one line only
                    m_columnMaxHeight[col] == -1)
                        height = renderer.getHeightOneLine();
                    else
                        height = renderer.getHeight();
                    renderer.setAllocation((int) colWidth, (int) height);
                    //	log.finest( "calculateSize HTML - " + renderer.getAllocation());
                    //	replace for printing
                    m_data[row][dataCol] = renderer;
                } else {
                    String[] lines = Pattern.compile("$", Pattern.MULTILINE).split(string);
                    for (int lineNo = 0; lineNo < lines.length; lineNo++) {
                        AttributedString aString = new AttributedString(lines[lineNo]);
                        aString.addAttribute(TextAttribute.FONT, font);
                        AttributedCharacterIterator iter = aString.getIterator();
                        LineBreakMeasurer measurer = new LineBreakMeasurer(iter, frc);
                        while (measurer.getPosition() < iter.getEndIndex()) {
                            TextLayout layout = measurer.nextLayout(Math.abs(m_columnMaxWidth[col]));
                            float width = layout.getAdvance();
                            if (colWidth < width)
                                colWidth = width;
                            float lineHeight = layout.getAscent() + layout.getDescent() + layout.getLeading();
                            if (//	one line only
                            m_columnMaxHeight[col] == -1) {
                                height = lineHeight;
                                break;
                            } else if (m_columnMaxHeight[col] == 0 || (height + lineHeight) <= m_columnMaxHeight[col])
                                height += lineHeight;
                        }
                    }
                //	for all lines
                }
                if (m_fixedWidth[col])
                    colWidth = Math.abs(m_columnMaxWidth[col]);
                dataSizes[row][col].addBelow(colWidth, height);
            }
            dataSizes[row][col].roundUp();
            if (dataItem instanceof NamePair)
                m_rowColDrillDown.put(new Point(row, col), (NamePair) dataItem);
            //	
            log.finest("Col=" + col + ", row=" + row + " => " + dataSizes[row][col] + " - ColWidth=" + colWidth);
        }
        //	for all data rows
        //	Column Width  for Header
        String string = "";
        if (m_columnHeader[dataCol] != null)
            string = m_columnHeader[dataCol].toString();
        //	Print below existing column
        if (col != dataCol)
            headerSizes[dataCol] = new Dimension2DImpl();
        else if (//	suppress Null
        colWidth == 0 && m_columnMaxWidth[dataCol] < 0 || string.length() == 0)
            headerSizes[dataCol] = new Dimension2DImpl();
        else {
            Font font = getFont(HEADER_ROW, dataCol);
            if (!font.isBold())
                font = new Font(font.getName(), Font.BOLD, font.getSize());
            //	No Width Limitations
            if (m_columnMaxWidth[dataCol] == 0 || m_columnMaxWidth[dataCol] == -1 || !m_multiLineHeader) {
                TextLayout layout = new TextLayout(string, font, frc);
                //	buffer
                float width = layout.getAdvance() + 3;
                float height = layout.getAscent() + layout.getDescent() + layout.getLeading();
                if (width > dynMxColumnWidth)
                    m_columnMaxWidth[dataCol] = (int) Math.ceil(dynMxColumnWidth);
                else if (colWidth < width)
                    colWidth = width;
                headerSizes[dataCol] = new Dimension2DImpl(width, height);
            }
            //	Width limitations
            if (m_columnMaxWidth[dataCol] != 0 && m_columnMaxWidth[dataCol] != -1) {
                float height = 0;
                //
                String[] lines = Pattern.compile("$", Pattern.MULTILINE).split(string);
                for (int lineNo = 0; lineNo < lines.length; lineNo++) {
                    AttributedString aString = new AttributedString(lines[lineNo]);
                    aString.addAttribute(TextAttribute.FONT, font);
                    AttributedCharacterIterator iter = aString.getIterator();
                    LineBreakMeasurer measurer = new LineBreakMeasurer(iter, frc);
                    colWidth = Math.abs(m_columnMaxWidth[dataCol]);
                    while (measurer.getPosition() < iter.getEndIndex()) {
                        TextLayout layout = measurer.nextLayout(colWidth);
                        float lineHeight = layout.getAscent() + layout.getDescent() + layout.getLeading();
                        if (//	one line only
                        !m_multiLineHeader) {
                            height = lineHeight;
                            break;
                        } else
                            /*if (m_columnMaxHeight[dataCol] == 0
								|| (height + lineHeight) <= m_columnMaxHeight[dataCol])*/
                            height += lineHeight;
                    }
                }
                //	for all header lines
                headerSizes[dataCol] = new Dimension2DImpl(colWidth, height);
            }
        }
        //	headerSize
        headerSizes[dataCol].roundUp();
        colWidth = (float) Math.ceil(colWidth);
        //	Round Column Width
        if (dataCol == 0)
            colWidth += m_tFormat.getVLineStroke().floatValue();
        if (colWidth != 0)
            colWidth += (2 * H_GAP) + m_tFormat.getVLineStroke().floatValue();
        //	Print below existing column
        if (col != dataCol) {
            //	for the data column
            m_columnWidths.add(new Float(0.0));
            Float origWidth = (Float) m_columnWidths.get(col);
            if (origWidth == null)
                log.log(Level.SEVERE, "Column " + dataCol + " below " + col + " - no value for orig width");
            else {
                if (origWidth.compareTo(new Float(colWidth)) >= 0) {
                    log.finest("Same Width - Col=" + col + " - OrigWidth=" + origWidth + " - Width=" + colWidth + " - Total=" + p_width);
                } else {
                    m_columnWidths.set(col, new Float(colWidth));
                    p_width += (colWidth - origWidth.floatValue());
                    log.finest("New Width - Col=" + col + " - OrigWidth=" + origWidth + " - Width=" + colWidth + " - Total=" + p_width);
                }
            }
        } else //	Add new Column
        {
            m_columnWidths.add(new Float(colWidth));
            p_width += colWidth;
            log.finest("Width - Col=" + dataCol + " - Width=" + colWidth + " - Total=" + p_width);
        }
    }
    //	for all columns
    //	Height	**********
    p_height = 0;
    for (int row = 0; row < rows; row++) {
        float rowHeight = 0f;
        for (int col = 0; col < cols; col++) {
            if (//	max
            dataSizes[row][col].height > rowHeight)
                rowHeight = (float) dataSizes[row][col].height;
        }
        //	for all columns
        rowHeight += m_tFormat.getLineStroke().floatValue() + (2 * V_GAP);
        m_rowHeights.add(new Float(rowHeight));
        p_height += rowHeight;
    }
    //	for all rows
    //	HeaderRow
    m_headerHeight = 0;
    for (int col = 0; col < cols; col++) {
        if (headerSizes[col].height > m_headerHeight)
            m_headerHeight = (int) headerSizes[col].height;
    }
    //	for all columns
    //	Thick lines
    m_headerHeight += (4 * m_tFormat.getLineStroke().floatValue()) + (2 * V_GAP);
    p_height += m_headerHeight;
    //	Last row Lines
    //	last fat line
    p_height += m_tFormat.getLineStroke().floatValue();
    //	Page Layout	*******************************************************
    log.fine("FirstPage=" + m_firstPage + ", NextPages=" + m_nextPages);
    //	One Page on Y | Axis
    if (m_firstPage.height >= p_height && m_pageBreak.size() == 0) {
        log.finest("Page Y=1 - PageHeight=" + m_firstPage.height + " - TableHeight=" + p_height);
        //	Y
        m_firstRowOnPage.add(new Integer(0));
        //	Y index only
        m_pageHeight.add(new Float(p_height));
    } else //	multiple pages on Y | Axis
    {
        float availableHeight = 0f;
        float usedHeight = 0f;
        boolean firstPage = true;
        int addlRows = 0;
        //	for all rows
        for (int dataRow = 0; dataRow < m_rowHeights.size(); dataRow++) {
            float rowHeight = ((Float) m_rowHeights.get(dataRow)).floatValue();
            //	Y page break before
            boolean pageBreak = isPageBreak(dataRow);
            //adjust for lastrow
            if (dataRow + 1 == m_rowHeights.size()) {
                availableHeight -= m_tFormat.getLineStroke().floatValue();
            }
            if (!pageBreak && availableHeight < rowHeight) {
                if (availableHeight > 40 && rowHeight > 40) {
                    log.finest("- Split (leave on current) Row=" + dataRow + " - Available=" + availableHeight + ", RowHeight=" + rowHeight);
                //	if (splitRow (dataRow))
                //		addlRows += 1;
                }
                //	else
                pageBreak = true;
            }
            if (pageBreak) {
                availableHeight = firstPage ? m_firstPage.height : m_nextPages.height;
                //	Y
                m_firstRowOnPage.add(new Integer(dataRow + addlRows));
                if (!firstPage) {
                    //	Y index only
                    m_pageHeight.add(new Float(usedHeight));
                    log.finest("Page Y=" + m_pageHeight.size() + " - PageHeight=" + usedHeight);
                }
                log.finest("Page Y=" + m_firstRowOnPage.size() + " - Row=" + dataRow + " - force=" + isPageBreak(dataRow));
                firstPage = false;
                //
                availableHeight -= m_headerHeight;
                usedHeight += m_headerHeight;
            }
            availableHeight -= rowHeight;
            usedHeight += rowHeight;
            if (availableHeight < 0) {
                log.finest("- Split (move to next) Row=" + dataRow + " - Available=" + availableHeight + ", RowHeight=" + rowHeight);
            }
            log.finest("Page Y=" + m_pageHeight.size() + ", Row=" + dataRow + ",AddlRows=" + addlRows + ", Height=" + rowHeight + " - Available=" + availableHeight + ", Used=" + usedHeight);
        }
        //	for all rows
        //	Y index only
        m_pageHeight.add(new Float(usedHeight));
        log.finest("Page Y=" + m_pageHeight.size() + " - PageHeight=" + usedHeight);
    }
    //	One page on - X Axis
    if (m_firstPage.width >= p_width) {
        log.finest("Page X=1 - PageWidth=" + m_firstPage.width + " - TableWidth=" + p_width);
        //	X
        m_firstColumnOnPage.add(new Integer(0));
        //
        distributeColumns(m_firstPage.width - (int) p_width, 0, m_columnWidths.size());
    } else //	multiple pages on - X Axis
    {
        int availableWidth = 0;
        int lastStart = 0;
        for (int col = 0; col < m_columnWidths.size(); col++) {
            int columnWidth = ((Float) m_columnWidths.get(col)).intValue();
            //	X page preak
            if (availableWidth < columnWidth) {
                if (col != 0)
                    distributeColumns(availableWidth, lastStart, col);
                //
                //	X
                m_firstColumnOnPage.add(new Integer(col));
                log.finest("Page X=" + m_firstColumnOnPage.size() + " - Col=" + col);
                lastStart = col;
                //	Width is the same on all pages
                availableWidth = m_firstPage.width;
                //
                for (int repCol = 0; repCol < m_repeatedColumns && col > repCol; repCol++) {
                    float repColumnWidth = ((Float) m_columnWidths.get(repCol)).floatValue();
                    //	leave 50% of space available for non repeated columns
                    if (availableWidth < m_firstPage.width * 0.5)
                        break;
                    availableWidth -= repColumnWidth;
                }
            }
            //	pageBreak
            availableWidth -= columnWidth;
        }
    //	for acc columns
    }
    //	multiple - X pages
    log.fine("Pages=" + getPageCount() + " X=" + m_firstColumnOnPage.size() + "/Y=" + m_firstRowOnPage.size() + " - Width=" + p_width + ", Height=" + p_height);
    return true;
}

Example 17 with LineBreakMeasurer

use of java.awt.font.LineBreakMeasurer in project poi by apache.

the class DrawTextParagraph method breakText.

/**
     * break text into lines, each representing a line of text that fits in the wrapping width
     *
     * @param graphics The drawing context for computing text-lengths.
     */
protected void breakText(Graphics2D graphics) {
    lines.clear();
    DrawFactory fact = DrawFactory.getInstance(graphics);
    StringBuilder text = new StringBuilder();
    AttributedString at = getAttributedString(graphics, text);
    boolean emptyParagraph = ("".equals(text.toString().trim()));
    AttributedCharacterIterator it = at.getIterator();
    LineBreakMeasurer measurer = new LineBreakMeasurer(it, graphics.getFontRenderContext());
    for (; ; ) {
        int startIndex = measurer.getPosition();
        // add a pixel to compensate rounding errors
        double wrappingWidth = getWrappingWidth(lines.size() == 0, graphics) + 1;
        // shape width can be smaller that the sum of insets (this was proved by a test file)
        if (wrappingWidth < 0) {
            wrappingWidth = 1;
        }
        int nextBreak = text.indexOf("\n", startIndex + 1);
        if (nextBreak == -1) {
            nextBreak = it.getEndIndex();
        }
        TextLayout layout = measurer.nextLayout((float) wrappingWidth, nextBreak, true);
        if (layout == null) {
            // layout can be null if the entire word at the current position
            // does not fit within the wrapping width. Try with requireNextWord=false.
            layout = measurer.nextLayout((float) wrappingWidth, nextBreak, false);
        }
        if (layout == null) {
            // exit if can't break any more
            break;
        }
        int endIndex = measurer.getPosition();
        // skip over new line breaks (we paint 'clear' text runs not starting or ending with \n)
        if (endIndex < it.getEndIndex() && text.charAt(endIndex) == '\n') {
            measurer.setPosition(endIndex + 1);
        }
        TextAlign hAlign = paragraph.getTextAlign();
        if (hAlign == TextAlign.JUSTIFY || hAlign == TextAlign.JUSTIFY_LOW) {
            layout = layout.getJustifiedLayout((float) wrappingWidth);
        }
        AttributedString str = (emptyParagraph) ? // we will not paint empty paragraphs
        null : new AttributedString(it, startIndex, endIndex);
        DrawTextFragment line = fact.getTextFragment(layout, str);
        lines.add(line);
        maxLineHeight = Math.max(maxLineHeight, line.getHeight());
        if (endIndex == it.getEndIndex()) {
            break;
        }
    }
    rawText = text.toString();
}