Examples with SpringLayout javax.swing.SpringLayout used on opensource projects

Example 56 with SpringLayout

use of javax.swing.SpringLayout in project BIMserver by opensourceBIM.

the class SpringUtilities method getConstraintsForCell.

/* 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);
}

Example 57 with SpringLayout

use of javax.swing.SpringLayout in project BIMserver by opensourceBIM.

the class SpringUtilities method makeGrid.

/**
 * Aligns the first <code>rows</code> * <code>cols</code>
 * components of <code>parent</code> in
 * a grid. Each component is as big as the maximum
 * preferred width and height of the components.
 * The parent is made just big enough to fit them all.
 *
 * @param rows number of rows
 * @param cols number of columns
 * @param initialX x location to start the grid at
 * @param initialY y location to start the grid at
 * @param xPad x padding between cells
 * @param yPad y padding between cells
 */
public static void makeGrid(Container parent, int rows, int cols, int initialX, int initialY, int xPad, int yPad) {
    SpringLayout layout;
    try {
        layout = (SpringLayout) parent.getLayout();
    } catch (ClassCastException exc) {
        System.err.println("The first argument to makeGrid must use SpringLayout.");
        return;
    }
    Spring xPadSpring = Spring.constant(xPad);
    Spring yPadSpring = Spring.constant(yPad);
    Spring initialXSpring = Spring.constant(initialX);
    Spring initialYSpring = Spring.constant(initialY);
    int max = rows * cols;
    // Calculate Springs that are the max of the width/height so that all
    // cells have the same size.
    Spring maxWidthSpring = layout.getConstraints(parent.getComponent(0)).getWidth();
    Spring maxHeightSpring = layout.getConstraints(parent.getComponent(0)).getWidth();
    for (int i = 1; i < max; i++) {
        SpringLayout.Constraints cons = layout.getConstraints(parent.getComponent(i));
        maxWidthSpring = Spring.max(maxWidthSpring, cons.getWidth());
        maxHeightSpring = Spring.max(maxHeightSpring, cons.getHeight());
    }
    // components to have the same size.
    for (int i = 0; i < max; i++) {
        SpringLayout.Constraints cons = layout.getConstraints(parent.getComponent(i));
        cons.setWidth(maxWidthSpring);
        cons.setHeight(maxHeightSpring);
    }
    // Then adjust the x/y constraints of all the cells so that they
    // are aligned in a grid.
    SpringLayout.Constraints lastCons = null;
    SpringLayout.Constraints lastRowCons = null;
    for (int i = 0; i < max; i++) {
        SpringLayout.Constraints cons = layout.getConstraints(parent.getComponent(i));
        if (i % cols == 0) {
            // start of new row
            lastRowCons = lastCons;
            cons.setX(initialXSpring);
        } else {
            // x position depends on previous component
            cons.setX(Spring.sum(lastCons.getConstraint(SpringLayout.EAST), xPadSpring));
        }
        if (i / cols == 0) {
            // first row
            cons.setY(initialYSpring);
        } else {
            // y position depends on previous row
            cons.setY(Spring.sum(lastRowCons.getConstraint(SpringLayout.SOUTH), yPadSpring));
        }
        lastCons = cons;
    }
    // Set the parent's size.
    SpringLayout.Constraints pCons = layout.getConstraints(parent);
    pCons.setConstraint(SpringLayout.SOUTH, Spring.sum(Spring.constant(yPad), lastCons.getConstraint(SpringLayout.SOUTH)));
    pCons.setConstraint(SpringLayout.EAST, Spring.sum(Spring.constant(xPad), lastCons.getConstraint(SpringLayout.EAST)));
}