Java Code Examples for java.awt.FontMetrics#getMaxAdvance()

The following examples show how to use java.awt.FontMetrics#getMaxAdvance() . These examples are extracted from open source projects. You can vote up the ones you like or vote down the ones you don't like, and go to the original project or source file by following the links above each example. You may want to check out the right sidebar which shows the related API usage.
Example 1
public static void main(String ... args) {
    Font font = new Font(Font.DIALOG, Font.PLAIN, FONT_SIZE);
    Graphics2D g2d = createGraphics();

    FontMetrics ref = null;
    RuntimeException failure = null;
    for (int a = 0; a < 360; a += 15) {
        Graphics2D g = (Graphics2D)g2d.create();
        g.rotate(Math.toRadians(a));
        FontMetrics m = g.getFontMetrics(font);
        g.dispose();

        boolean status = true;
        if (ref == null) {
            ref = m;
        } else {
            status = ref.getAscent() == m.getAscent() &&
                    ref.getDescent() == m.getDescent() &&
                    ref.getLeading() == m.getLeading() &&
                    ref.getMaxAdvance() == m.getMaxAdvance();
        }

        System.out.printf("Metrics a%d, d%d, l%d, m%d (%d) %s\n",
                m.getAscent(), m.getDescent(), m.getLeading(), m.getMaxAdvance(),
                (int)a, status ? "OK" : "FAIL");

        if (!status && failure == null) {
            failure = new RuntimeException("Font metrics differ for angle " + a);
        }
    }
    if (failure != null) {
        throw failure;
    }
    System.out.println("done");
}
 
Example 2
public static void main(String ... args) {
    Font font = new Font(Font.DIALOG, Font.PLAIN, FONT_SIZE);
    Graphics2D g2d = createGraphics();

    FontMetrics ref = null;
    RuntimeException failure = null;
    for (int a = 0; a < 360; a += 15) {
        Graphics2D g = (Graphics2D)g2d.create();
        g.rotate(Math.toRadians(a));
        FontMetrics m = g.getFontMetrics(font);
        g.dispose();

        boolean status = true;
        if (ref == null) {
            ref = m;
        } else {
            status = ref.getAscent() == m.getAscent() &&
                    ref.getDescent() == m.getDescent() &&
                    ref.getLeading() == m.getLeading() &&
                    ref.getMaxAdvance() == m.getMaxAdvance();
        }

        System.out.printf("Metrics a%d, d%d, l%d, m%d (%d) %s\n",
                m.getAscent(), m.getDescent(), m.getLeading(), m.getMaxAdvance(),
                (int)a, status ? "OK" : "FAIL");

        if (!status && failure == null) {
            failure = new RuntimeException("Font metrics differ for angle " + a);
        }
    }
    if (failure != null) {
        throw failure;
    }
    System.out.println("done");
}
 
Example 3
public int getBitmapFontRAMUsage() {
    BufferedImage image = new BufferedImage(50, 50, BufferedImage.TYPE_INT_RGB);
    Graphics2D g2d = (Graphics2D)image.getGraphics();
    g2d.setRenderingHint(RenderingHints.KEY_RENDERING, RenderingHints.VALUE_RENDER_QUALITY);
    g2d.setRenderingHint(RenderingHints.KEY_COLOR_RENDERING, RenderingHints.VALUE_COLOR_RENDER_QUALITY);
    g2d.setRenderingHint(RenderingHints.KEY_STROKE_CONTROL, RenderingHints.VALUE_STROKE_NORMALIZE);
    g2d.setRenderingHint(RenderingHints.KEY_TEXT_ANTIALIASING, bitmapAntialiasing);
    g2d.setFont(java.awt.Font.decode(lookupFont));
    FontMetrics metrics = g2d.getFontMetrics();
    FontRenderContext context = g2d.getFontRenderContext();
    int baseline = (int)Math.ceil(metrics.getMaxAscent());
    int[] offsets = new int[bitmapCharset.length()];
    int[] widths = new int[offsets.length];
    int currentOffset = 0;
    for(int iter = 0 ; iter < bitmapCharset.length() ; iter++) {
        offsets[iter] = currentOffset;
        String currentChar = bitmapCharset.substring(iter, iter + 1);
        g2d.drawString(currentChar, currentOffset, baseline);
        Rectangle2D rect = g2d.getFont().getStringBounds(currentChar, context);
        widths[iter] = (int)Math.ceil(rect.getWidth());

        // max advance works but it makes a HUGE image in terms of width which
        // occupies more ram
        if(g2d.getFont().isItalic()) {
            currentOffset += metrics.getMaxAdvance();
        } else {
            currentOffset += widths[iter] + 1;
        }
    }
    g2d.dispose();
    return currentOffset * getHeight() * 4;
}
 
Example 4
/**
 * Draws the tick marks and labels.
 *
 * @param g2  the graphics device.
 * @param cursor  the cursor.
 * @param plotArea  the plot area.
 * @param dataArea  the area inside the axes.
 * @param edge  the side on which the axis is displayed.
 *
 * @return The axis state.
 */
@Override
protected AxisState drawTickMarksAndLabels(Graphics2D g2, double cursor,
        Rectangle2D plotArea, Rectangle2D dataArea, RectangleEdge edge) {
    this.internalMarkerWhenTicksOverlap = false;
    AxisState ret = super.drawTickMarksAndLabels(g2, cursor, plotArea,
            dataArea, edge);

    // continue and separate the labels only if necessary
    if (!this.internalMarkerWhenTicksOverlap) {
        return ret;
    }

    double ol;
    FontMetrics fm = g2.getFontMetrics(getTickLabelFont());
    if (isVerticalTickLabels()) {
        ol = fm.getMaxAdvance();
    }
    else {
        ol = fm.getHeight();
    }

    double il = 0;
    if (isTickMarksVisible()) {
        float xx = (float) valueToJava2D(getRange().getUpperBound(),
                dataArea, edge);
        Line2D mark = null;
        g2.setStroke(getTickMarkStroke());
        g2.setPaint(getTickMarkPaint());
        if (edge == RectangleEdge.LEFT) {
            mark = new Line2D.Double(cursor - ol, xx, cursor + il, xx);
        }
        else if (edge == RectangleEdge.RIGHT) {
            mark = new Line2D.Double(cursor + ol, xx, cursor - il, xx);
        }
        else if (edge == RectangleEdge.TOP) {
            mark = new Line2D.Double(xx, cursor - ol, xx, cursor + il);
        }
        else if (edge == RectangleEdge.BOTTOM) {
            mark = new Line2D.Double(xx, cursor + ol, xx, cursor - il);
        }
        g2.draw(mark);
    }
    return ret;
}
 
Example 5
Source Project: SIMVA-SoS   File: CyclicNumberAxis.java    License: Apache License 2.0 4 votes vote down vote up
/**
 * Draws the tick marks and labels.
 *
 * @param g2  the graphics device.
 * @param cursor  the cursor.
 * @param plotArea  the plot area.
 * @param dataArea  the area inside the axes.
 * @param edge  the side on which the axis is displayed.
 *
 * @return The axis state.
 */
@Override
protected AxisState drawTickMarksAndLabels(Graphics2D g2, double cursor,
        Rectangle2D plotArea, Rectangle2D dataArea, RectangleEdge edge) {
    this.internalMarkerWhenTicksOverlap = false;
    AxisState ret = super.drawTickMarksAndLabels(g2, cursor, plotArea,
            dataArea, edge);

    // continue and separate the labels only if necessary
    if (!this.internalMarkerWhenTicksOverlap) {
        return ret;
    }

    double ol;
    FontMetrics fm = g2.getFontMetrics(getTickLabelFont());
    if (isVerticalTickLabels()) {
        ol = fm.getMaxAdvance();
    }
    else {
        ol = fm.getHeight();
    }

    double il = 0;
    if (isTickMarksVisible()) {
        float xx = (float) valueToJava2D(getRange().getUpperBound(),
                dataArea, edge);
        Line2D mark = null;
        g2.setStroke(getTickMarkStroke());
        g2.setPaint(getTickMarkPaint());
        if (edge == RectangleEdge.LEFT) {
            mark = new Line2D.Double(cursor - ol, xx, cursor + il, xx);
        }
        else if (edge == RectangleEdge.RIGHT) {
            mark = new Line2D.Double(cursor + ol, xx, cursor - il, xx);
        }
        else if (edge == RectangleEdge.TOP) {
            mark = new Line2D.Double(xx, cursor - ol, xx, cursor + il);
        }
        else if (edge == RectangleEdge.BOTTOM) {
            mark = new Line2D.Double(xx, cursor + ol, xx, cursor - il);
        }
        g2.draw(mark);
    }
    return ret;
}
 
Example 6
/**
 * Draws the tick marks and labels.
 * 
 * @param g2  the graphics device.
 * @param cursor  the cursor.
 * @param plotArea  the plot area.
 * @param dataArea  the area inside the axes.
 * @param edge  the side on which the axis is displayed.
 * @param info  the plot rendering info.
 * 
 * @return The axis state.
 */
protected AxisState drawTickMarksAndLabels(Graphics2D g2, double cursor, 
        Rectangle2D plotArea, Rectangle2D dataArea, RectangleEdge edge,
        PlotRenderingInfo info) {
    
    this.internalMarkerWhenTicksOverlap = false;
    AxisState ret = super.drawTickMarksAndLabels(g2, cursor, plotArea, 
            dataArea, edge, info);
    
    // continue and separate the labels only if necessary
    if (!this.internalMarkerWhenTicksOverlap) {
        return ret;
    }
    
    double ol = getTickMarkOutsideLength();
    FontMetrics fm = g2.getFontMetrics(getTickLabelFont());
    
    if (isVerticalTickLabels()) {
        ol = fm.getMaxAdvance(); 
    }
    else {
        ol = fm.getHeight();
    }
    
    double il = 0;
    if (isTickMarksVisible()) {
        float xx = (float) valueToJava2D(
            getRange().getUpperBound(), dataArea, edge
        );
        Line2D mark = null;
        g2.setStroke(getTickMarkStroke());
        g2.setPaint(getTickMarkPaint());
        if (edge == RectangleEdge.LEFT) {
            mark = new Line2D.Double(cursor - ol, xx, cursor + il, xx);
        }
        else if (edge == RectangleEdge.RIGHT) {
            mark = new Line2D.Double(cursor + ol, xx, cursor - il, xx);
        }
        else if (edge == RectangleEdge.TOP) {
            mark = new Line2D.Double(xx, cursor - ol, xx, cursor + il);
        }
        else if (edge == RectangleEdge.BOTTOM) {
            mark = new Line2D.Double(xx, cursor + ol, xx, cursor - il);
        }
        g2.draw(mark);
    }
    return ret;
}
 
Example 7
public static void main(String[] args) throws Exception {
    GraphicsEnvironment e =
            GraphicsEnvironment.getLocalGraphicsEnvironment();
    Font[] fonts = e.getAllFonts();
    BufferedImage bi = new BufferedImage(500, 500,
            BufferedImage.TYPE_INT_RGB);
    for (AntialiasHint antialiasHint : antialiasHints) {
        for (Font f : fonts) {
            for (StyleAndSize styleAndSize : stylesAndSizes) {
                f = f.deriveFont(styleAndSize.style, styleAndSize.size);
                Graphics2D g2d = bi.createGraphics();
                g2d.setRenderingHint(RenderingHints.KEY_TEXT_ANTIALIASING,
                        antialiasHint.getHint());
                FontMetrics fm = g2d.getFontMetrics(f);
                int[] width;
                int maxWidth = -1;
                int maxAdvance = fm.getMaxAdvance();
                if (debug) {
                    System.out.println("Testing " + f + " in " +
                            antialiasHint);
                    System.out.println("getMaxAdvance: " + maxAdvance);
                }
                if (maxAdvance != -1) {
                    String failureMessage = null;
                    width = fm.getWidths();
                    for (int j = 0; j < width.length; j++) {
                        if (width[j] > maxWidth) {
                            maxWidth = width[j];
                        }
                        if (width[j] > maxAdvance) {
                            failureMessage = "FAILED: getMaxAdvance is " +
                                             "not max for font: " +
                                             f.toString() +
                                             " getMaxAdvance(): " +
                                             maxAdvance +
                                             " getWidths()[" + j + "]: " +
                                             width[j];
                            throw new Exception(failureMessage);
                        }
                    }
                }
                if (debug) {
                    System.out.println("Max char width: " + maxWidth);
                    System.out.println("PASSED");
                    System.out.println(".........................");
                }
            }
        }
    }
    System.out.println("TEST PASS - OK");
}
 
Example 8
public static void main(String[] args) throws Exception {
    GraphicsEnvironment e =
            GraphicsEnvironment.getLocalGraphicsEnvironment();
    Font[] fonts = e.getAllFonts();
    BufferedImage bi = new BufferedImage(500, 500,
            BufferedImage.TYPE_INT_RGB);
    for (AntialiasHint antialiasHint : antialiasHints) {
        for (Font f : fonts) {
            for (StyleAndSize styleAndSize : stylesAndSizes) {
                f = f.deriveFont(styleAndSize.style, styleAndSize.size);
                Graphics2D g2d = bi.createGraphics();
                g2d.setRenderingHint(RenderingHints.KEY_TEXT_ANTIALIASING,
                        antialiasHint.getHint());
                FontMetrics fm = g2d.getFontMetrics(f);
                int[] width;
                int maxWidth = -1;
                int maxAdvance = fm.getMaxAdvance();
                if (debug) {
                    System.out.println("Testing " + f + " in " +
                            antialiasHint);
                    System.out.println("getMaxAdvance: " + maxAdvance);
                }
                if (maxAdvance != -1) {
                    String failureMessage = null;
                    width = fm.getWidths();
                    for (int j = 0; j < width.length; j++) {
                        if (width[j] > maxWidth) {
                            maxWidth = width[j];
                        }
                        if (width[j] > maxAdvance) {
                            failureMessage = "FAILED: getMaxAdvance is " +
                                             "not max for font: " +
                                             f.toString() +
                                             " getMaxAdvance(): " +
                                             maxAdvance +
                                             " getWidths()[" + j + "]: " +
                                             width[j];
                            throw new Exception(failureMessage);
                        }
                    }
                }
                if (debug) {
                    System.out.println("Max char width: " + maxWidth);
                    System.out.println("PASSED");
                    System.out.println(".........................");
                }
            }
        }
    }
    System.out.println("TEST PASS - OK");
}
 
Example 9
/**
 * Draws the tick marks and labels.
 *
 * @param g2  the graphics device.
 * @param cursor  the cursor.
 * @param plotArea  the plot area.
 * @param dataArea  the area inside the axes.
 * @param edge  the side on which the axis is displayed.
 * @param info  the plot rendering info.
 *
 * @return The axis state.
 */
protected AxisState drawTickMarksAndLabels(Graphics2D g2, double cursor,
        Rectangle2D plotArea, Rectangle2D dataArea, RectangleEdge edge,
        PlotRenderingInfo info) {

    this.internalMarkerWhenTicksOverlap = false;
    AxisState ret = super.drawTickMarksAndLabels(g2, cursor, plotArea,
            dataArea, edge, info);

    // continue and separate the labels only if necessary
    if (!this.internalMarkerWhenTicksOverlap) {
        return ret;
    }

    double ol = getTickMarkOutsideLength();
    FontMetrics fm = g2.getFontMetrics(getTickLabelFont());

    if (isVerticalTickLabels()) {
        ol = fm.getMaxAdvance();
    }
    else {
        ol = fm.getHeight();
    }

    double il = 0;
    if (isTickMarksVisible()) {
        float xx = (float) valueToJava2D(getRange().getUpperBound(),
                dataArea, edge);
        Line2D mark = null;
        g2.setStroke(getTickMarkStroke());
        g2.setPaint(getTickMarkPaint());
        if (edge == RectangleEdge.LEFT) {
            mark = new Line2D.Double(cursor - ol, xx, cursor + il, xx);
        }
        else if (edge == RectangleEdge.RIGHT) {
            mark = new Line2D.Double(cursor + ol, xx, cursor - il, xx);
        }
        else if (edge == RectangleEdge.TOP) {
            mark = new Line2D.Double(xx, cursor - ol, xx, cursor + il);
        }
        else if (edge == RectangleEdge.BOTTOM) {
            mark = new Line2D.Double(xx, cursor + ol, xx, cursor - il);
        }
        g2.draw(mark);
    }
    return ret;
}
 
Example 10
private void calcFontMetrics( Graphics2D g2d, int w, int h ) {
    FontMetrics fm;
    Graphics2D g2 = (Graphics2D)g2d.create();

    /// ABP
    if ( g2Transform != NONE && textToUse != FILE_TEXT ) {
        g2.setFont( g2.getFont().deriveFont( getAffineTransform( g2Transform )) );
        fm = g2.getFontMetrics();
    }
    else {
        fm = g2.getFontMetrics();
    }

    maxAscent = fm.getMaxAscent();
    maxDescent = fm.getMaxDescent();
    if (maxAscent == 0) maxAscent = 10;
    if (maxDescent == 0) maxDescent = 5;
    if ( textToUse == RANGE_TEXT || textToUse == ALL_GLYPHS ) {
        /// Give slight extra room for each character
        maxAscent += 3;
        maxDescent += 3;
        gridWidth = fm.getMaxAdvance() + 6;
        gridHeight = maxAscent + maxDescent;
        if ( force16Cols )
          numCharAcross = 16;
        else
          numCharAcross = ( w - 10 ) / gridWidth;
        numCharDown = ( h - 10 ) / gridHeight;

        canvasInset_X = ( w - numCharAcross * gridWidth ) / 2;
        canvasInset_Y = ( h - numCharDown * gridHeight ) / 2;
        if ( numCharDown == 0 || numCharAcross == 0 )
          throw new CannotDrawException( isPrinting ? CANT_FIT_PRINT : CANT_FIT_DRAW );

        if ( !isPrinting )
          resetScrollbar( verticalBar.getValue() * numCharAcross );
    }
    else {
        maxDescent += fm.getLeading();
        canvasInset_X = 5;
        canvasInset_Y = 5;
        /// gridWidth and numCharAcross will not be used in this mode...
        gridHeight = maxAscent + maxDescent;
        numCharDown = ( h - canvasInset_Y * 2 ) / gridHeight;

        if ( numCharDown == 0 )
          throw new CannotDrawException( isPrinting ? CANT_FIT_PRINT : CANT_FIT_DRAW );
        /// If this is text loaded from file, prepares the LineBreak'ed
        /// text layout at this point
        if ( textToUse == FILE_TEXT ) {
            if ( !isPrinting )
              f2dt.fireChangeStatus( "LineBreaking Text... Please Wait", false );
            lineBreakTLs = new Vector();
            for ( int i = 0; i < fileText.length; i++ ) {
                AttributedString as =
                  new AttributedString( fileText[i], g2.getFont().getAttributes() );

                LineBreakMeasurer lbm =
                  new LineBreakMeasurer( as.getIterator(), g2.getFontRenderContext() );

                while ( lbm.getPosition() < fileText[i].length() )
                  lineBreakTLs.add( lbm.nextLayout( (float) w ));

            }
        }
        if ( !isPrinting )
          resetScrollbar( verticalBar.getValue() );
    }
}
 
Example 11
public static void main(String[] args) throws Exception {
    GraphicsEnvironment e =
            GraphicsEnvironment.getLocalGraphicsEnvironment();
    Font[] fonts = e.getAllFonts();
    BufferedImage bi = new BufferedImage(500, 500,
            BufferedImage.TYPE_INT_RGB);
    for (AntialiasHint antialiasHint : antialiasHints) {
        for (Font f : fonts) {
            for (StyleAndSize styleAndSize : stylesAndSizes) {
                f = f.deriveFont(styleAndSize.style, styleAndSize.size);
                Graphics2D g2d = bi.createGraphics();
                g2d.setRenderingHint(RenderingHints.KEY_TEXT_ANTIALIASING,
                        antialiasHint.getHint());
                FontMetrics fm = g2d.getFontMetrics(f);
                int[] width;
                int maxWidth = -1;
                int maxAdvance = fm.getMaxAdvance();
                if (debug) {
                    System.out.println("Testing " + f + " in " +
                            antialiasHint);
                    System.out.println("getMaxAdvance: " + maxAdvance);
                }
                if (maxAdvance != -1) {
                    String failureMessage = null;
                    width = fm.getWidths();
                    for (int j = 0; j < width.length; j++) {
                        if (width[j] > maxWidth) {
                            maxWidth = width[j];
                        }
                        if (width[j] > maxAdvance) {
                            failureMessage = "FAILED: getMaxAdvance is " +
                                             "not max for font: " +
                                             f.toString() +
                                             " getMaxAdvance(): " +
                                             maxAdvance +
                                             " getWidths()[" + j + "]: " +
                                             width[j];
                            throw new Exception(failureMessage);
                        }
                    }
                }
                if (debug) {
                    System.out.println("Max char width: " + maxWidth);
                    System.out.println("PASSED");
                    System.out.println(".........................");
                }
            }
        }
    }
    System.out.println("TEST PASS - OK");
}
 
Example 12
private void calcFontMetrics( Graphics2D g2d, int w, int h ) {
    FontMetrics fm;
    Graphics2D g2 = (Graphics2D)g2d.create();

    /// ABP
    if ( g2Transform != NONE && textToUse != FILE_TEXT ) {
        g2.setFont( g2.getFont().deriveFont( getAffineTransform( g2Transform )) );
        fm = g2.getFontMetrics();
    }
    else {
        fm = g2.getFontMetrics();
    }

    maxAscent = fm.getMaxAscent();
    maxDescent = fm.getMaxDescent();
    if (maxAscent == 0) maxAscent = 10;
    if (maxDescent == 0) maxDescent = 5;
    if ( textToUse == RANGE_TEXT || textToUse == ALL_GLYPHS ) {
        /// Give slight extra room for each character
        maxAscent += 3;
        maxDescent += 3;
        gridWidth = fm.getMaxAdvance() + 6;
        gridHeight = maxAscent + maxDescent;
        if ( force16Cols )
          numCharAcross = 16;
        else
          numCharAcross = ( w - 10 ) / gridWidth;
        numCharDown = ( h - 10 ) / gridHeight;

        canvasInset_X = ( w - numCharAcross * gridWidth ) / 2;
        canvasInset_Y = ( h - numCharDown * gridHeight ) / 2;
        if ( numCharDown == 0 || numCharAcross == 0 )
          throw new CannotDrawException( isPrinting ? CANT_FIT_PRINT : CANT_FIT_DRAW );

        if ( !isPrinting )
          resetScrollbar( verticalBar.getValue() * numCharAcross );
    }
    else {
        maxDescent += fm.getLeading();
        canvasInset_X = 5;
        canvasInset_Y = 5;
        /// gridWidth and numCharAcross will not be used in this mode...
        gridHeight = maxAscent + maxDescent;
        numCharDown = ( h - canvasInset_Y * 2 ) / gridHeight;

        if ( numCharDown == 0 )
          throw new CannotDrawException( isPrinting ? CANT_FIT_PRINT : CANT_FIT_DRAW );
        /// If this is text loaded from file, prepares the LineBreak'ed
        /// text layout at this point
        if ( textToUse == FILE_TEXT ) {
            if ( !isPrinting )
              f2dt.fireChangeStatus( "LineBreaking Text... Please Wait", false );
            lineBreakTLs = new Vector();
            for ( int i = 0; i < fileText.length; i++ ) {
                AttributedString as =
                  new AttributedString( fileText[i], g2.getFont().getAttributes() );

                LineBreakMeasurer lbm =
                  new LineBreakMeasurer( as.getIterator(), g2.getFontRenderContext() );

                while ( lbm.getPosition() < fileText[i].length() )
                  lineBreakTLs.add( lbm.nextLayout( (float) w ));

            }
        }
        if ( !isPrinting )
          resetScrollbar( verticalBar.getValue() );
    }
}
 
Example 13
private void calcFontMetrics( Graphics2D g2d, int w, int h ) {
    FontMetrics fm;
    Graphics2D g2 = (Graphics2D)g2d.create();

    /// ABP
    if ( g2Transform != NONE && textToUse != FILE_TEXT ) {
        g2.setFont( g2.getFont().deriveFont( getAffineTransform( g2Transform )) );
        fm = g2.getFontMetrics();
    }
    else {
        fm = g2.getFontMetrics();
    }

    maxAscent = fm.getMaxAscent();
    maxDescent = fm.getMaxDescent();
    if (maxAscent == 0) maxAscent = 10;
    if (maxDescent == 0) maxDescent = 5;
    if ( textToUse == RANGE_TEXT || textToUse == ALL_GLYPHS ) {
        /// Give slight extra room for each character
        maxAscent += 3;
        maxDescent += 3;
        gridWidth = fm.getMaxAdvance() + 6;
        gridHeight = maxAscent + maxDescent;
        if ( force16Cols )
          numCharAcross = 16;
        else
          numCharAcross = ( w - 10 ) / gridWidth;
        numCharDown = ( h - 10 ) / gridHeight;

        canvasInset_X = ( w - numCharAcross * gridWidth ) / 2;
        canvasInset_Y = ( h - numCharDown * gridHeight ) / 2;
        if ( numCharDown == 0 || numCharAcross == 0 )
          throw new CannotDrawException( isPrinting ? CANT_FIT_PRINT : CANT_FIT_DRAW );

        if ( !isPrinting )
          resetScrollbar( verticalBar.getValue() * numCharAcross );
    }
    else {
        maxDescent += fm.getLeading();
        canvasInset_X = 5;
        canvasInset_Y = 5;
        /// gridWidth and numCharAcross will not be used in this mode...
        gridHeight = maxAscent + maxDescent;
        numCharDown = ( h - canvasInset_Y * 2 ) / gridHeight;

        if ( numCharDown == 0 )
          throw new CannotDrawException( isPrinting ? CANT_FIT_PRINT : CANT_FIT_DRAW );
        /// If this is text loaded from file, prepares the LineBreak'ed
        /// text layout at this point
        if ( textToUse == FILE_TEXT ) {
            if ( !isPrinting )
              f2dt.fireChangeStatus( "LineBreaking Text... Please Wait", false );
            lineBreakTLs = new Vector();
            for ( int i = 0; i < fileText.length; i++ ) {
                AttributedString as =
                  new AttributedString( fileText[i], g2.getFont().getAttributes() );

                LineBreakMeasurer lbm =
                  new LineBreakMeasurer( as.getIterator(), g2.getFontRenderContext() );

                while ( lbm.getPosition() < fileText[i].length() )
                  lineBreakTLs.add( lbm.nextLayout( (float) w ));

            }
        }
        if ( !isPrinting )
          resetScrollbar( verticalBar.getValue() );
    }
}
 
Example 14
private void calcFontMetrics( Graphics2D g2d, int w, int h ) {
    FontMetrics fm;
    Graphics2D g2 = (Graphics2D)g2d.create();

    /// ABP
    if ( g2Transform != NONE && textToUse != FILE_TEXT ) {
        g2.setFont( g2.getFont().deriveFont( getAffineTransform( g2Transform )) );
        fm = g2.getFontMetrics();
    }
    else {
        fm = g2.getFontMetrics();
    }

    maxAscent = fm.getMaxAscent();
    maxDescent = fm.getMaxDescent();
    if (maxAscent == 0) maxAscent = 10;
    if (maxDescent == 0) maxDescent = 5;
    if ( textToUse == RANGE_TEXT || textToUse == ALL_GLYPHS ) {
        /// Give slight extra room for each character
        maxAscent += 3;
        maxDescent += 3;
        gridWidth = fm.getMaxAdvance() + 6;
        gridHeight = maxAscent + maxDescent;
        if ( force16Cols )
          numCharAcross = 16;
        else
          numCharAcross = ( w - 10 ) / gridWidth;
        numCharDown = ( h - 10 ) / gridHeight;

        canvasInset_X = ( w - numCharAcross * gridWidth ) / 2;
        canvasInset_Y = ( h - numCharDown * gridHeight ) / 2;
        if ( numCharDown == 0 || numCharAcross == 0 )
          throw new CannotDrawException( isPrinting ? CANT_FIT_PRINT : CANT_FIT_DRAW );

        if ( !isPrinting )
          resetScrollbar( verticalBar.getValue() * numCharAcross );
    }
    else {
        maxDescent += fm.getLeading();
        canvasInset_X = 5;
        canvasInset_Y = 5;
        /// gridWidth and numCharAcross will not be used in this mode...
        gridHeight = maxAscent + maxDescent;
        numCharDown = ( h - canvasInset_Y * 2 ) / gridHeight;

        if ( numCharDown == 0 )
          throw new CannotDrawException( isPrinting ? CANT_FIT_PRINT : CANT_FIT_DRAW );
        /// If this is text loaded from file, prepares the LineBreak'ed
        /// text layout at this point
        if ( textToUse == FILE_TEXT ) {
            if ( !isPrinting )
              f2dt.fireChangeStatus( "LineBreaking Text... Please Wait", false );
            lineBreakTLs = new Vector();
            for ( int i = 0; i < fileText.length; i++ ) {
                AttributedString as =
                  new AttributedString( fileText[i], g2.getFont().getAttributes() );

                LineBreakMeasurer lbm =
                  new LineBreakMeasurer( as.getIterator(), g2.getFontRenderContext() );

                while ( lbm.getPosition() < fileText[i].length() )
                  lineBreakTLs.add( lbm.nextLayout( (float) w ));

            }
        }
        if ( !isPrinting )
          resetScrollbar( verticalBar.getValue() );
    }
}
 
Example 15
/**
 * Draws the tick marks and labels.
 *
 * @param g2  the graphics device.
 * @param cursor  the cursor.
 * @param plotArea  the plot area.
 * @param dataArea  the area inside the axes.
 * @param edge  the side on which the axis is displayed.
 *
 * @return The axis state.
 */
@Override
protected AxisState drawTickMarksAndLabels(Graphics2D g2, double cursor,
        Rectangle2D plotArea, Rectangle2D dataArea, RectangleEdge edge) {
    this.internalMarkerWhenTicksOverlap = false;
    AxisState ret = super.drawTickMarksAndLabels(g2, cursor, plotArea,
            dataArea, edge);

    // continue and separate the labels only if necessary
    if (!this.internalMarkerWhenTicksOverlap) {
        return ret;
    }

    double ol;
    FontMetrics fm = g2.getFontMetrics(getTickLabelFont());
    if (isVerticalTickLabels()) {
        ol = fm.getMaxAdvance();
    }
    else {
        ol = fm.getHeight();
    }

    double il = 0;
    if (isTickMarksVisible()) {
        float xx = (float) valueToJava2D(getRange().getUpperBound(),
                dataArea, edge);
        Line2D mark = null;
        g2.setStroke(getTickMarkStroke());
        g2.setPaint(getTickMarkPaint());
        if (edge == RectangleEdge.LEFT) {
            mark = new Line2D.Double(cursor - ol, xx, cursor + il, xx);
        }
        else if (edge == RectangleEdge.RIGHT) {
            mark = new Line2D.Double(cursor + ol, xx, cursor - il, xx);
        }
        else if (edge == RectangleEdge.TOP) {
            mark = new Line2D.Double(xx, cursor - ol, xx, cursor + il);
        }
        else if (edge == RectangleEdge.BOTTOM) {
            mark = new Line2D.Double(xx, cursor + ol, xx, cursor - il);
        }
        g2.draw(mark);
    }
    return ret;
}
 
Example 16
Source Project: scipio-erp   File: CommonEvents.java    License: Apache License 2.0 4 votes vote down vote up
public static String getCaptcha(HttpServletRequest request, HttpServletResponse response) {
    try {
        Delegator delegator = (Delegator) request.getAttribute("delegator");
        final String captchaSizeConfigName = StringUtils.defaultIfEmpty(request.getParameter("captchaSize"), "default");
        final String captchaSizeConfig = EntityUtilProperties.getPropertyValue("captcha", "captcha." + captchaSizeConfigName, delegator);
        final String[] captchaSizeConfigs = captchaSizeConfig.split("\\|");
        final String captchaCodeId = StringUtils.defaultIfEmpty(request.getParameter("captchaCodeId"), ""); // this is used to uniquely identify in the user session the attribute where the captcha code for the last captcha for the form is stored

        final int fontSize = Integer.parseInt(captchaSizeConfigs[0]);
        final int height = Integer.parseInt(captchaSizeConfigs[1]);
        final int width = Integer.parseInt(captchaSizeConfigs[2]);
        final int charsToPrint = UtilProperties.getPropertyAsInteger("captcha", "captcha.code_length", 6);
        final char[] availableChars = EntityUtilProperties.getPropertyValue("captcha", "captcha.characters", delegator).toCharArray();

        //It is possible to pass the font size, image width and height with the request as well
        Color backgroundColor = Color.gray;
        Color borderColor = Color.DARK_GRAY;
        Color textColor = Color.ORANGE;
        Color circleColor = new Color(160, 160, 160);
        Font textFont = new Font("Arial", Font.PLAIN, fontSize);
        int circlesToDraw = 6;
        float horizMargin = 20.0f;
        double rotationRange = 0.7; // in radians
        BufferedImage bufferedImage = new BufferedImage(width, height, BufferedImage.TYPE_INT_RGB);

        Graphics2D g = (Graphics2D) bufferedImage.getGraphics();

        g.setColor(backgroundColor);
        g.fillRect(0, 0, width, height);

        //Generating some circles for background noise
        g.setColor(circleColor);
        for (int i = 0; i < circlesToDraw; i++) {
            int circleRadius = (int) (Math.random() * height / 2.0);
            int circleX = (int) (Math.random() * width - circleRadius);
            int circleY = (int) (Math.random() * height - circleRadius);
            g.drawOval(circleX, circleY, circleRadius * 2, circleRadius * 2);
        }
        g.setColor(textColor);
        g.setFont(textFont);

        FontMetrics fontMetrics = g.getFontMetrics();
        int maxAdvance = fontMetrics.getMaxAdvance();
        int fontHeight = fontMetrics.getHeight();

        String captchaCode = RandomStringUtils.random(6, availableChars);

        float spaceForLetters = -horizMargin * 2 + width;
        float spacePerChar = spaceForLetters / (charsToPrint - 1.0f);

        for (int i = 0; i < captchaCode.length(); i++) {

            // this is a separate canvas used for the character so that
            // we can rotate it independently
            int charWidth = fontMetrics.charWidth(captchaCode.charAt(i));
            int charDim = Math.max(maxAdvance, fontHeight);
            int halfCharDim = (charDim / 2);

            BufferedImage charImage = new BufferedImage(charDim, charDim, BufferedImage.TYPE_INT_ARGB);
            Graphics2D charGraphics = charImage.createGraphics();
            charGraphics.translate(halfCharDim, halfCharDim);
            double angle = (Math.random() - 0.5) * rotationRange;
            charGraphics.transform(AffineTransform.getRotateInstance(angle));
            charGraphics.translate(-halfCharDim, -halfCharDim);
            charGraphics.setColor(textColor);
            charGraphics.setFont(textFont);

            int charX = (int) (0.5 * charDim - 0.5 * charWidth);
            charGraphics.drawString("" + captchaCode.charAt(i), charX,
                    ((charDim - fontMetrics.getAscent()) / 2 + fontMetrics.getAscent()));

            float x = horizMargin + spacePerChar * (i) - charDim / 2.0f;
            int y = ((height - charDim) / 2);

            g.drawImage(charImage, (int) x, y, charDim, charDim, null, null);

            charGraphics.dispose();
        }
        // Drawing the image border
        g.setColor(borderColor);
        g.drawRect(0, 0, width - 1, height - 1);
        g.dispose();
        response.setContentType("image/jpeg");
        ImageIO.write(bufferedImage, "jpg", response.getOutputStream());
        HttpSession session = request.getSession();
        Map<String, String> captchaCodeMap = UtilGenerics.checkMap(session.getAttribute("_CAPTCHA_CODE_"));
        if (captchaCodeMap == null) {
            captchaCodeMap = new HashMap<>();
            session.setAttribute("_CAPTCHA_CODE_", captchaCodeMap);
        }
        captchaCodeMap.put(captchaCodeId, captchaCode);
    } catch (IOException | IllegalArgumentException | IllegalStateException ioe) {
        Debug.logError(ioe.getMessage(), module);
    }
    return "success";
}
 
Example 17
Source Project: hottub   File: FontPanel.java    License: GNU General Public License v2.0 4 votes vote down vote up
private void calcFontMetrics( Graphics2D g2d, int w, int h ) {
    FontMetrics fm;
    Graphics2D g2 = (Graphics2D)g2d.create();

    /// ABP
    if ( g2Transform != NONE && textToUse != FILE_TEXT ) {
        g2.setFont( g2.getFont().deriveFont( getAffineTransform( g2Transform )) );
        fm = g2.getFontMetrics();
    }
    else {
        fm = g2.getFontMetrics();
    }

    maxAscent = fm.getMaxAscent();
    maxDescent = fm.getMaxDescent();
    if (maxAscent == 0) maxAscent = 10;
    if (maxDescent == 0) maxDescent = 5;
    if ( textToUse == RANGE_TEXT || textToUse == ALL_GLYPHS ) {
        /// Give slight extra room for each character
        maxAscent += 3;
        maxDescent += 3;
        gridWidth = fm.getMaxAdvance() + 6;
        gridHeight = maxAscent + maxDescent;
        if ( force16Cols )
          numCharAcross = 16;
        else
          numCharAcross = ( w - 10 ) / gridWidth;
        numCharDown = ( h - 10 ) / gridHeight;

        canvasInset_X = ( w - numCharAcross * gridWidth ) / 2;
        canvasInset_Y = ( h - numCharDown * gridHeight ) / 2;
        if ( numCharDown == 0 || numCharAcross == 0 )
          throw new CannotDrawException( isPrinting ? CANT_FIT_PRINT : CANT_FIT_DRAW );

        if ( !isPrinting )
          resetScrollbar( verticalBar.getValue() * numCharAcross );
    }
    else {
        maxDescent += fm.getLeading();
        canvasInset_X = 5;
        canvasInset_Y = 5;
        /// gridWidth and numCharAcross will not be used in this mode...
        gridHeight = maxAscent + maxDescent;
        numCharDown = ( h - canvasInset_Y * 2 ) / gridHeight;

        if ( numCharDown == 0 )
          throw new CannotDrawException( isPrinting ? CANT_FIT_PRINT : CANT_FIT_DRAW );
        /// If this is text loaded from file, prepares the LineBreak'ed
        /// text layout at this point
        if ( textToUse == FILE_TEXT ) {
            if ( !isPrinting )
              f2dt.fireChangeStatus( "LineBreaking Text... Please Wait", false );
            lineBreakTLs = new Vector();
            for ( int i = 0; i < fileText.length; i++ ) {
                AttributedString as =
                  new AttributedString( fileText[i], g2.getFont().getAttributes() );

                LineBreakMeasurer lbm =
                  new LineBreakMeasurer( as.getIterator(), g2.getFontRenderContext() );

                while ( lbm.getPosition() < fileText[i].length() )
                  lineBreakTLs.add( lbm.nextLayout( (float) w ));

            }
        }
        if ( !isPrinting )
          resetScrollbar( verticalBar.getValue() );
    }
}
 
Example 18
private void calcFontMetrics( Graphics2D g2d, int w, int h ) {
    FontMetrics fm;
    Graphics2D g2 = (Graphics2D)g2d.create();

    /// ABP
    if ( g2Transform != NONE && textToUse != FILE_TEXT ) {
        g2.setFont( g2.getFont().deriveFont( getAffineTransform( g2Transform )) );
        fm = g2.getFontMetrics();
    }
    else {
        fm = g2.getFontMetrics();
    }

    maxAscent = fm.getMaxAscent();
    maxDescent = fm.getMaxDescent();
    if (maxAscent == 0) maxAscent = 10;
    if (maxDescent == 0) maxDescent = 5;
    if ( textToUse == RANGE_TEXT || textToUse == ALL_GLYPHS ) {
        /// Give slight extra room for each character
        maxAscent += 3;
        maxDescent += 3;
        gridWidth = fm.getMaxAdvance() + 6;
        gridHeight = maxAscent + maxDescent;
        if ( force16Cols )
          numCharAcross = 16;
        else
          numCharAcross = ( w - 10 ) / gridWidth;
        numCharDown = ( h - 10 ) / gridHeight;

        canvasInset_X = ( w - numCharAcross * gridWidth ) / 2;
        canvasInset_Y = ( h - numCharDown * gridHeight ) / 2;
        if ( numCharDown == 0 || numCharAcross == 0 )
          throw new CannotDrawException( isPrinting ? CANT_FIT_PRINT : CANT_FIT_DRAW );

        if ( !isPrinting )
          resetScrollbar( verticalBar.getValue() * numCharAcross );
    }
    else {
        maxDescent += fm.getLeading();
        canvasInset_X = 5;
        canvasInset_Y = 5;
        /// gridWidth and numCharAcross will not be used in this mode...
        gridHeight = maxAscent + maxDescent;
        numCharDown = ( h - canvasInset_Y * 2 ) / gridHeight;

        if ( numCharDown == 0 )
          throw new CannotDrawException( isPrinting ? CANT_FIT_PRINT : CANT_FIT_DRAW );
        /// If this is text loaded from file, prepares the LineBreak'ed
        /// text layout at this point
        if ( textToUse == FILE_TEXT ) {
            if ( !isPrinting )
              f2dt.fireChangeStatus( "LineBreaking Text... Please Wait", false );
            lineBreakTLs = new Vector();
            for ( int i = 0; i < fileText.length; i++ ) {
                AttributedString as =
                  new AttributedString( fileText[i], g2.getFont().getAttributes() );

                LineBreakMeasurer lbm =
                  new LineBreakMeasurer( as.getIterator(), g2.getFontRenderContext() );

                while ( lbm.getPosition() < fileText[i].length() )
                  lineBreakTLs.add( lbm.nextLayout( (float) w ));

            }
        }
        if ( !isPrinting )
          resetScrollbar( verticalBar.getValue() );
    }
}
 
Example 19
private void calcFontMetrics( Graphics2D g2d, int w, int h ) {
    FontMetrics fm;
    Graphics2D g2 = (Graphics2D)g2d.create();

    /// ABP
    if ( g2Transform != NONE && textToUse != FILE_TEXT ) {
        g2.setFont( g2.getFont().deriveFont( getAffineTransform( g2Transform )) );
        fm = g2.getFontMetrics();
    }
    else {
        fm = g2.getFontMetrics();
    }

    maxAscent = fm.getMaxAscent();
    maxDescent = fm.getMaxDescent();
    if (maxAscent == 0) maxAscent = 10;
    if (maxDescent == 0) maxDescent = 5;
    if ( textToUse == RANGE_TEXT || textToUse == ALL_GLYPHS ) {
        /// Give slight extra room for each character
        maxAscent += 3;
        maxDescent += 3;
        gridWidth = fm.getMaxAdvance() + 6;
        gridHeight = maxAscent + maxDescent;
        if ( force16Cols )
          numCharAcross = 16;
        else
          numCharAcross = ( w - 10 ) / gridWidth;
        numCharDown = ( h - 10 ) / gridHeight;

        canvasInset_X = ( w - numCharAcross * gridWidth ) / 2;
        canvasInset_Y = ( h - numCharDown * gridHeight ) / 2;
        if ( numCharDown == 0 || numCharAcross == 0 )
          throw new CannotDrawException( isPrinting ? CANT_FIT_PRINT : CANT_FIT_DRAW );

        if ( !isPrinting )
          resetScrollbar( verticalBar.getValue() * numCharAcross );
    }
    else {
        maxDescent += fm.getLeading();
        canvasInset_X = 5;
        canvasInset_Y = 5;
        /// gridWidth and numCharAcross will not be used in this mode...
        gridHeight = maxAscent + maxDescent;
        numCharDown = ( h - canvasInset_Y * 2 ) / gridHeight;

        if ( numCharDown == 0 )
          throw new CannotDrawException( isPrinting ? CANT_FIT_PRINT : CANT_FIT_DRAW );
        /// If this is text loaded from file, prepares the LineBreak'ed
        /// text layout at this point
        if ( textToUse == FILE_TEXT ) {
            if ( !isPrinting )
              f2dt.fireChangeStatus( "LineBreaking Text... Please Wait", false );
            lineBreakTLs = new Vector();
            for ( int i = 0; i < fileText.length; i++ ) {
                AttributedString as =
                  new AttributedString( fileText[i], g2.getFont().getAttributes() );

                LineBreakMeasurer lbm =
                  new LineBreakMeasurer( as.getIterator(), g2.getFontRenderContext() );

                while ( lbm.getPosition() < fileText[i].length() )
                  lineBreakTLs.add( lbm.nextLayout( (float) w ));

            }
        }
        if ( !isPrinting )
          resetScrollbar( verticalBar.getValue() );
    }
}
 
Example 20
/**
 * Draws the tick marks and labels.
 *
 * @param g2  the graphics device.
 * @param cursor  the cursor.
 * @param plotArea  the plot area.
 * @param dataArea  the area inside the axes.
 * @param edge  the side on which the axis is displayed.
 *
 * @return The axis state.
 */
@Override
protected AxisState drawTickMarksAndLabels(Graphics2D g2, double cursor,
        Rectangle2D plotArea, Rectangle2D dataArea, RectangleEdge edge) {
    this.internalMarkerWhenTicksOverlap = false;
    AxisState ret = super.drawTickMarksAndLabels(g2, cursor, plotArea,
            dataArea, edge);

    // continue and separate the labels only if necessary
    if (!this.internalMarkerWhenTicksOverlap) {
        return ret;
    }

    double ol;
    FontMetrics fm = g2.getFontMetrics(getTickLabelFont());
    if (isVerticalTickLabels()) {
        ol = fm.getMaxAdvance();
    }
    else {
        ol = fm.getHeight();
    }

    double il = 0;
    if (isTickMarksVisible()) {
        float xx = (float) valueToJava2D(getRange().getUpperBound(),
                dataArea, edge);
        Line2D mark = null;
        g2.setStroke(getTickMarkStroke());
        g2.setPaint(getTickMarkPaint());
        if (edge == RectangleEdge.LEFT) {
            mark = new Line2D.Double(cursor - ol, xx, cursor + il, xx);
        }
        else if (edge == RectangleEdge.RIGHT) {
            mark = new Line2D.Double(cursor + ol, xx, cursor - il, xx);
        }
        else if (edge == RectangleEdge.TOP) {
            mark = new Line2D.Double(xx, cursor - ol, xx, cursor + il);
        }
        else if (edge == RectangleEdge.BOTTOM) {
            mark = new Line2D.Double(xx, cursor + ol, xx, cursor - il);
        }
        g2.draw(mark);
    }
    return ret;
}