List of usage examples for java.awt FontMetrics getMaxAdvance
public int getMaxAdvance()
From source file:edu.ku.brc.af.ui.forms.validation.ValFormattedTextField.java
/** * Creates the various UI Components for the formatter. *//*from ww w. java 2 s. c o m*/ protected void createUI() { CellConstraints cc = new CellConstraints(); if (isViewOnly || (formatter != null && !formatter.isUserInputNeeded() && fields != null && fields.size() == 1)) { viewtextField = new JTextField(); setControlSize(viewtextField); // Remove by rods 12/5/08 this messes thihngs up // values don't get inserted correctly, shouldn't be needed anyway //JFormattedDoc document = new JFormattedDoc(viewtextField, formatter, formatter.getFields().get(0)); //viewtextField.setDocument(document); //document.addDocumentListener(this); //documents.add(document); ViewFactory.changeTextFieldUIForDisplay(viewtextField, false); PanelBuilder builder = new PanelBuilder(new FormLayout("1px,f:p:g,1px", "1px,f:p:g,1px"), this); builder.add(viewtextField, cc.xy(2, 2)); bgColor = viewtextField.getBackground(); } else { JTextField txt = new JTextField(); Font txtFont = txt.getFont(); Font font = new Font("Courier", Font.PLAIN, txtFont.getSize()); BufferedImage bi = new BufferedImage(1, 1, BufferedImage.TYPE_INT_RGB); Graphics2D g = bi.createGraphics(); g.setFont(font); FontMetrics fm = g.getFontMetrics(font); g.dispose(); Insets ins = txt.getBorder().getBorderInsets(txt); int baseWidth = ins.left + ins.right; bgColor = txt.getBackground(); StringBuilder sb = new StringBuilder("1px"); for (UIFieldFormatterField f : fields) { sb.append(","); if (f.getType() == FieldType.separator || f.getType() == FieldType.constant) { sb.append('p'); } else { sb.append(((fm.getMaxAdvance() * f.getSize()) + baseWidth) + "px"); } } sb.append(",1px"); PanelBuilder builder = new PanelBuilder(new FormLayout(sb.toString(), "1px,P:G,1px"), this); comps = new JComponent[fields.size()]; int inx = 0; for (UIFieldFormatterField f : fields) { JComponent comp = null; JComponent tfToAdd = null; if (f.getType() == FieldType.separator || f.getType() == FieldType.constant) { comp = createLabel(f.getValue()); if (f.getType() == FieldType.constant) { comp.setBackground(Color.WHITE); comp.setOpaque(true); } tfToAdd = comp; } else { JTextField tf = new BGTextField(f.getSize(), isViewOnly ? "" : f.getValue()); tfToAdd = tf; if (inx == 0) { tf.addKeyListener(new KeyAdapter() { @Override public void keyPressed(KeyEvent e) { checkForPaste(e); } }); } JFormattedDoc document = new JFormattedDoc(tf, formatter, f); tf.setDocument(document); document.addDocumentListener(new DocumentAdaptor() { @Override protected void changed(DocumentEvent e) { isChanged = true; if (!shouldIgnoreNotifyDoc) { String fldStr = getText(); int len = StringUtils.isNotEmpty(fldStr) ? fldStr.length() : 0; if (formatter != null && len > 0 && formatter.isLengthOK(len)) { setState(formatter.isValid(fldStr) ? UIValidatable.ErrorType.Valid : UIValidatable.ErrorType.Error); repaint(); } //validateState(); if (changeListener != null) { changeListener.stateChanged(new ChangeEvent(this)); } if (documentListeners != null) { for (DocumentListener dl : documentListeners) { dl.changedUpdate(null); } } } currCachedValue = null; } }); documents.add(document); addFocusAdapter(tf); comp = tf; comp.setFont(font); if (f.isIncrementer()) { editTF = tf; cardLayout = new CardLayout(); cardPanel = new JPanel(cardLayout); cardPanel.add("edit", tf); viewTF = new BGTextField(f.getSize(), isViewOnly ? "" : f.getValue()); viewTF.setDocument(document); cardPanel.add("view", viewTF); cardLayout.show(cardPanel, "view"); comp = cardPanel; tfToAdd = cardPanel; } } setControlSize(tfToAdd); builder.add(comp, cc.xy(inx + 2, 2)); comps[inx] = tfToAdd; inx++; } } }
From source file:org.apache.ofbiz.common.CommonEvents.java
public static String getCaptcha(HttpServletRequest request, HttpServletResponse response) { try {//w ww . j a va 2s . c o m 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<String, String>(); session.setAttribute("_CAPTCHA_CODE_", captchaCodeMap); } captchaCodeMap.put(captchaCodeId, captchaCode); } catch (Exception ioe) { Debug.logError(ioe.getMessage(), module); } return "success"; }
From source file:org.ofbiz.common.CommonEvents.java
public static String getCaptcha(HttpServletRequest request, HttpServletResponse response) { try {/* w ww.j a v a2 s. co m*/ Delegator delegator = (Delegator) request.getAttribute("delegator"); final String captchaSizeConfigName = StringUtils.defaultIfEmpty(request.getParameter("captchaSize"), "default"); final String captchaSizeConfig = EntityUtilProperties.getPropertyValue("captcha.properties", "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.properties", "captcha.code_length", 6); final char[] availableChars = EntityUtilProperties .getPropertyValue("captcha.properties", "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<String, String>(); session.setAttribute("_CAPTCHA_CODE_", captchaCodeMap); } captchaCodeMap.put(captchaCodeId, captchaCode); } catch (Exception ioe) { Debug.logError(ioe.getMessage(), module); } return "success"; }