Examples of javax.swing.SpringLayout$SpringProxy

javax.swing.SpringLayout
A Constraints object holds the constraints that govern the way a component's size and position change in a container controlled by a SpringLayout. A Constraints object is like a Rectangle, in that it has x, y, width, and height properties. In the Constraints object, however, these properties have Spring values instead of integers. In addition, a Constraints object can be manipulated as four edges -- north, south, east, and west -- using the constraint property.
The following formulas are always true for a Constraints object (here WEST and x are synonyms, as are and NORTH and y):
```
 EAST = WEST + WIDTH SOUTH = NORTH + HEIGHT HORIZONTAL_CENTER = WEST + WIDTH/2 VERTICAL_CENTER = NORTH + HEIGHT/2 ABSOLUTE_BASELINE = NORTH + RELATIVE_BASELINE 
```
For example, if you have specified the WIDTH and WEST (X) location the EAST is calculated as WEST + WIDTH. If you instead specified the WIDTH and EAST locations the WEST (X) location is then calculated as EAST - WIDTH.
[RELATIVE_BASELINE is a private constraint that is set automatically when the SpringLayout.Constraints(Component) constructor is called or when a constraints object is registered with a SpringLayout object.]
Note: In this document, operators represent methods in the Spring class. For example, "a + b" is equal to Spring.sum(a, b), and "a - b" is equal to Spring.sum(a, Spring.minus(b)). See the {@link Spring Spring API documentation}for further details of spring arithmetic.
Because a Constraints object's properties -- representing its edges, size, and location -- can all be set independently and yet are interrelated, a Constraints object can become over-constrained. For example, if the WEST, WIDTH and EAST edges are all set, steps must be taken to ensure that the first of the formulas above holds. To do this, the Constraints object throws away the least recently set constraint so as to make the formulas hold. @since 1.4

     */
    public static void makeCompactGrid(Container parent,
            int rows, int cols,
            int initialX, int initialY,
            int xPad, int yPad) {
        SpringLayout layout;
        try {
            layout = (SpringLayout) parent.getLayout();
        } catch (ClassCastException exc) {
            Freedomotic.logger.warning("The first argument to makeCompactGrid must use SpringLayout.");
            return;
        }


        //Align all cells in each column and make them the same width.
        Spring x = Spring.constant(initialX);
        for (int c = 0; c < cols; c++) {
            Spring width = Spring.constant(0);
            for (int r = 0; r < rows; r++) {
                width = Spring.max(width,
                        getConstraintsForCell(r, c, parent, cols).
                        getWidth());
            }
            for (int r = 0; r < rows; r++) {
                SpringLayout.Constraints constraints =
                        getConstraintsForCell(r, c, parent, cols);
                constraints.setX(x);
                constraints.setWidth(width);
            }
            x = Spring.sum(x, Spring.sum(width, Spring.constant(xPad)));
        }


        //Align all cells in each row and make them the same height.
        Spring y = Spring.constant(initialY);
        for (int r = 0; r < rows; r++) {
            Spring height = Spring.constant(0);
            for (int c = 0; c < cols; c++) {
                height = Spring.max(height,
                        getConstraintsForCell(r, c, parent, cols).
                        getHeight());
            }
            for (int c = 0; c < cols; c++) {
                SpringLayout.Constraints constraints =
                        getConstraintsForCell(r, c, parent, cols);
                constraints.setY(y);
                constraints.setHeight(height);
            }
            y = Spring.sum(y, Spring.sum(height, Spring.constant(yPad)));
        }


        //Set the parent's size.
        SpringLayout.Constraints pCons = layout.getConstraints(parent);
        pCons.setConstraint(SpringLayout.SOUTH, y);
        pCons.setConstraint(SpringLayout.EAST, x);
    }

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        }
    }


    private void enlistObjects(ZoneLogic zone) {
        panel.removeAll();
        panel.setLayout(new SpringLayout());


        int row = 0;


        if (zone.getPojo().getObjects().isEmpty()) {
            panel.add(new JLabel("No objects in this zone"));

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     *            y padding between cells
     */
    private static void makeSpringCompactGrid(Container parent, int rows, int cols, int initialX, int initialY,
            int xPad, int yPad) {


        SpringLayout layout = new SpringLayout();
        parent.setLayout(layout);


        // Align all cells in each column and make them the same width.
        Spring x = Spring.constant(initialX);
        for (int c = 0; c < cols; c++) {
            Spring width = Spring.constant(0);
            for (int r = 0; r < rows; r++) {
                width = Spring.max(width, getConstraintsForCell(r, c, parent, cols).getWidth());
            }
            for (int r = 0; r < rows; r++) {
                SpringLayout.Constraints constraints = getConstraintsForCell(r, c, parent, cols);
                constraints.setX(x);
                constraints.setWidth(width);
            }
            x = Spring.sum(x, Spring.sum(width, Spring.constant(xPad)));
        }


        // Align all cells in each row and make them the same height.
        Spring y = Spring.constant(initialY);
        for (int r = 0; r < rows; r++) {
            Spring height = Spring.constant(0);
            for (int c = 0; c < cols; c++) {
                height = Spring.max(height, getConstraintsForCell(r, c, parent, cols).getHeight());
            }
            for (int c = 0; c < cols; c++) {
                SpringLayout.Constraints constraints = getConstraintsForCell(r, c, parent, cols);
                constraints.setY(y);
                constraints.setHeight(height);
            }
            y = Spring.sum(y, Spring.sum(height, Spring.constant(yPad)));
        }


        // Set the parent's size.
        SpringLayout.Constraints pCons = layout.getConstraints(parent);
        pCons.setConstraint(SpringLayout.SOUTH, y);
        pCons.setConstraint(SpringLayout.EAST, x);
    }

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        pCons.setConstraint(SpringLayout.EAST, x);
    }


    /* Used by makeCompactGrid. */
    private static SpringLayout.Constraints getConstraintsForCell(int row, int col, Container parent, int cols) {
        SpringLayout layout = (SpringLayout) parent.getLayout();
        Component c = parent.getComponent(row * cols + col);
        return layout.getConstraints(c);
    }

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        loginTabs = new JTabbedPane();
        add(loginTabs, BorderLayout.CENTER);


        // basic panel
        JPanel basicPanel = new JPanel(new SpringLayout());


        urlField = createTextField(basicPanel, "URL:");
        urlField.setText(System.getProperty(SYSPROP_URL, ""));


        createBindingButtons(basicPanel);

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        pane.add(repositoryBox);
    }


    private SpringLayout.Constraints getConstraintsForCell(int row, int col, Container parent, int cols) {
        SpringLayout layout = (SpringLayout) parent.getLayout();
        Component c = parent.getComponent(row * cols + col);
        return layout.getConstraints(c);
    }

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        Component c = parent.getComponent(row * cols + col);
        return layout.getConstraints(c);
    }


    private void makeCompactGrid(Container parent, int rows, int cols, int initialX, int initialY, int xPad, int yPad) {
        SpringLayout layout = (SpringLayout) parent.getLayout();


        Spring x = Spring.constant(initialX);
        for (int c = 0; c < cols; c++) {
            Spring width = Spring.constant(0);
            for (int r = 0; r < rows; r++) {
                width = Spring.max(width, getConstraintsForCell(r, c, parent, cols).getWidth());
            }
            for (int r = 0; r < rows; r++) {
                SpringLayout.Constraints constraints = getConstraintsForCell(r, c, parent, cols);
                constraints.setX(x);
                constraints.setWidth(width);
            }
            x = Spring.sum(x, Spring.sum(width, Spring.constant(xPad)));
        }


        Spring y = Spring.constant(initialY);
        for (int r = 0; r < rows; r++) {
            Spring height = Spring.constant(0);
            for (int c = 0; c < cols; c++) {
                height = Spring.max(height, getConstraintsForCell(r, c, parent, cols).getHeight());
            }
            for (int c = 0; c < cols; c++) {
                SpringLayout.Constraints constraints = getConstraintsForCell(r, c, parent, cols);
                constraints.setY(y);
                constraints.setHeight(height);
            }
            y = Spring.sum(y, Spring.sum(height, Spring.constant(yPad)));
        }


        layout.getConstraints(parent).setConstraint(SpringLayout.EAST, x);
    }

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    final Caption labelInputDir = new Caption("Input Directory: ");
    final Caption labelStyleMapFile = new Caption("TypeSystem or AE Descriptor File: ");


    JPanel controlPanel = new JPanel();
    controlPanel.setBorder(BorderFactory.createEmptyBorder(4, 4, 4, 4));
    controlPanel.setLayout(new SpringLayout());


    // Once we add components to controlPanel, we'll
    // call SpringUtilities::makeCompactGrid on it.


    // controlPanel.setLayout(new GridLayout(4, 2, 8, 4));

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      JPanel southernPanel = new JPanel();
      southernPanel.setLayout(new BoxLayout(southernPanel, BoxLayout.Y_AXIS));


      JPanel controlsPanel = new JPanel();
      controlsPanel.setLayout(new SpringLayout());


      Caption displayFormatLabel = new Caption("Results Display Format:");
      controlsPanel.add(displayFormatLabel);


      JPanel displayFormatPanel = new JPanel();

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    labelEncoding = new Caption("Character Encoding: ");


    JPanel controlPanel = new JPanel();
    controlPanel.setBorder(BorderFactory.createEmptyBorder(4, 4, 4, 4));
    controlPanel.setLayout(new SpringLayout());


    // Once we add components to controlPanel, we'll
    // call SpringUtilities::makeCompactGrid on it.


    // controlPanel.setLayout(new GridLayout(4, 2, 8, 4));

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