Examples of nextapp.echo2.app.Component

nextapp.echo2.app.Row
A representation of an Echo component. This is an abstract base class from which all Echo components are derived.
A hierarchy of Component objects is used to represent the state of an application's user interface. A Component may have a single parent Component and may contain zero or more child Components. Certain Components may limit the number or type(s) of children which may be added to them, and may even establish requirements for what type(s) of parent Components they may be added to. In the event that an application attempts to add a child Component to a parent Component in spite of these requirements, an IllegalChildException is thrown.
Properties and Styles

The state of a single Component is represented by its properties. Properties can be categorized into two types: "style" and "non-style". Style properties are generally used to represent the "look-and-feel" of a Component--information such as colors, fonts, location, and borders. "Non-style" properties are generally used to represent non-stylistic information such as data models, selection models, and locale.
"Style Properties" have a special definition because they may be stored in Style or StyleSheet objects instead of as properties of a specific Component instance. Property values contained in a relevant Style or StyleSheet will be used for rendering when the property values are not specified by a Component itself. Style properties are identified by the presence of a public static constant name in a Component implementation with the prefix PROPERTY_. In the base Component class itself there are several examples of style properties, such as PROPERTY_BACKGROUND,PROPERTY_FONT and PROPERTY_LAYOUT_DATA. The rendering application container will use the Component.getRenderProperty() and Component.getRenderIndexedProperty() to retrieve the values of stylistic properties, in order that their values might be obtained from the Component's shared Style or the ApplicationInstance's StyleSheet in the event they are not directly set in the Component.
A Component implementation should not store the values of style properties as instance variables. Rather, the values of style properties should be stored in the local Style instance, by way of the setProperty() method. The getProperty() method may be used to obtain the value of such properties. Only style properties should be stored using these methods; properties such as models should never be stored using the getProperty()/setProperty() interface.
Events

Many Components will provide the capability to register EventListeners to notify interested parties when various state changes occur. The base Component class provides an EventListenerList as a convenient and memory efficient means of storing such listeners. The internal EventListenerList may be obtained using the getEventListenerList() method. The EventListenerList is lazy-created and will only be instantiated on the first invocation of the getEventListenerList() method. If the intent is only to inquire about the state of event listeners without necessarily forcing instantiation of an EventListenerList, the hasEventListenerList() should be queried prior to invoking getEventListenerList().

    class CrTblAddresses implements TableCellRenderer {


        private static final long serialVersionUID = -5623959513895038767L;


        public Component getTableCellRendererComponent(Table table, Object value, int column, int row) {
            Label label;
            if (value != null) {
                label = new Label(value.toString());
            } else {
                label = new Label("");
            }


            if (row % 2 == 0) {
                label.setStyleName("MessageListTable.EvenRowLabel");
            } else {
                label.setStyleName("MessageListTable.OddRowLabel");
            }
            return label;
        }

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        this.setMaximizable(false);
        this.setMinimizable(false);
        this.setResizable(false);
        this.setModal(true);
        ImageReference icon = getMessageIcon(messageType);
        Label iconLabel = new Label("");
        int iconHeight = 0;
        if (icon != null) {
            iconLabel.setIcon(icon);
            iconHeight = icon.getHeight().getValue();
        }




        // Split newlines into multiple labels
        if (message instanceof String) {
            String[] lines = ((String) message).split("\n");


            if (lines.length > 1) {
                message = lines;
            }
        }




        Column messageColumn = new Column();


        if (message.getClass().isArray()) {
            Object[] messageList = (Object[]) message;
            for (int i = 0; i < messageList.length; i++) {
                messageColumn.add(new Label(messageList[i].toString()));
            }
        } else {
            messageColumn.add(new Label(message.toString()));
        }
        final int labelCount = messageColumn.getComponentCount();
        
        JbsButton btnDetails = null;
        if (exception!=null) {

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        this.getBtnMain().setBackground(Color.WHITE);
        this.getBtnMain().setBorder(BorderEx.NONE);
        this.getBtnMain().setRolloverBackground(Color.WHITE);
        this.getBtnMain().setRolloverBorder(BorderEx.NONE);


        this.setToggleIcon(new ResourceImageReference(IMG_DROPDOWN));
        this.setTogglePressedIcon(new ResourceImageReference(IMG_DROPDOWN));
        this.setToggleRolloverIcon(new ResourceImageReference(IMG_DROPDOWN));
        


        /*
        this.getBtnMain().addActionListener(new ActionListener() {

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     * @param title The title of the button
     */
    public JbsAccPaneButton(String imgFileName, String title) {
        super();
        try {
            ResourceImageReference ref = new ResourceImageReference(Styles.getIconPath() + imgFileName);
            this.setIcon(ref);
        } catch (Exception e) {
            logger.debug(Styles.getIconPath() + imgFileName + " not found.");
        }
        this.setStyleName("Default");

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        this.setBorder(BorderEx.NONE);
        this.setRolloverBorder(BorderEx.NONE);
        this.setTarget(this.getBtnMain());
        this.setPopUp(this.getMnuMain());
        this.setToggleIcon(new ResourceImageReference(IMG_DROPDOWN));
        this.setTogglePressedIcon(new ResourceImageReference(IMG_DROPDOWN));
        this.setToggleRolloverIcon(new ResourceImageReference(IMG_DROPDOWN));
    }

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    private Logger logger = Logger.getLogger(BtnToolbar.class);
    private static final long serialVersionUID = 176100334500789000L;


    public BtnToolbar(String imgFileName) {
        super();
        ResourceImageReference ref = new ResourceImageReference(Styles.getIconPath() + imgFileName);
        if (ref != null) {
            this.setIcon(ref);
        } else {
            logger.warn("Image " + imgFileName + " not found.");
        }

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                    break; // no icon
            }


            if (iconName != null) {
                final String imagePath = Styles.getIconPath(); //"../resource/images/";
                messageIcons[messageType] = new ResourceImageReference(
                        imagePath + iconName, new JbsExtent(ICON_HEIGHT), new JbsExtent(ICON_HEIGHT));
            }
        }


        return messageIcons[messageType];

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    public void addControl(String groupName, Component control) {
        this.addControl(groupName, groupName, control);
    }


    public void addSeparator(String groupName) {
        Row row = new Row();
        ColumnLayoutData layout = new ColumnLayoutData();
        layout.setHeight(new JbsExtent(15, JbsExtent.PX));
        row.setLayoutData(layout);
        this.addControl(groupName, row);
    }

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        spMain.add(pnMain);
    }


    protected JbsContentPane initPnButtons() {
        pnButtons = new JbsContentPane();
        Row mainRow = new Row();
        mainRow.setAlignment(new Alignment(Alignment.RIGHT, Alignment.DEFAULT));
        mainRow.setInsets(new Insets(new JbsExtent(5), new JbsExtent(5)));


        btnOK = new JbsButton(JbsL10N.getString("Generic.ok"));
        btnOK.setAlignmentHorizontal(Alignment.CENTER);
        btnOK.setWidth(new JbsExtent(80));
        btnOK.addActionListener(new ActionListener() {


            private static final long serialVersionUID = 1L;


            public void actionPerformed(ActionEvent arg0) {
                postDialog();
            }
        });
        mainRow.add(btnOK);


        btnCancel = new JbsButton(JbsL10N.getString("Generic.cancel"));
        btnCancel.setAlignmentHorizontal(Alignment.CENTER);
        btnCancel.setWidth(new JbsExtent(80));
        btnCancel.addActionListener(new ActionListener() {


            private static final long serialVersionUID = 1L;


            public void actionPerformed(ActionEvent arg0) {
                cancelDialog();
            }
        });
        mainRow.add(btnCancel);


        /*
        KeyStrokeListener ks = new KeyStrokeListener();
        ks.addKeyCombination(KeyStrokeListener.VK_RETURN,"OK");
        ks.addKeyCombination(KeyStrokeListener.VK_ESCAPE,"CANCEL");
        ks.addActionListener(new ActionListener() {
        private static final long serialVersionUID = 1L;
        public void actionPerformed(ActionEvent arg0) {
        if (arg0.getActionCommand().equals("OK"))
        postDialog();
        else if (arg0.getActionCommand().equals("CANCEL"))
        cancelDialog();
        }
        });
        mainRow.add(ks);
        mainRow.add(this.createKeyStrokeListener());
         */
        mainRow.add(this.getKeystrokeListener());
        pnButtons.add(mainRow);
        return pnButtons;
    }

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        JbsLabel label = new JbsLabel(str);
        colMain.add(label);
    }
    
    public void addBlankLine() {
        Row row = new Row();
        ColumnLayoutData layout = new ColumnLayoutData();
        layout.setHeight(new JbsExtent(15,JbsExtent.PX));
        row.setLayoutData(layout);
        colMain.add(row);
    }

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Examples of nextapp.echo2.app.Component

Properties and Styles

Events

Related Classes of nextapp.echo2.app.Component