Examples of org.apache.pivot.wtk.BoxPane$BoxPaneListenerList

org.apache.pivot.wtk.BoxPane
Container that arranges components in a line, either vertically or horizontally.
Layout considerations: Note that by default, a BoxPane does not pass any preferred size information to its components. That means, for example, that the preferred width of a horizontal BoxPane is simply the sum of the preferred widths of its components, plus whatever extra space is dictated by its padding and spacing styles. This is also true in the orthogonal dimension if the fill style is not set: the preferred height of a horizontal BoxPane is the maximum preferred height of its components (plus padding, if any).
If a BoxPane is given less than its preferred size by its parent container, then the contents will be clipped; if given more than its preferred size, the contents will not be stretched to fill the space.
This behavior of BoxPane can be useful for "canceling" the layout effects of a parent container and/or to align a component that does not have its own alignment styles. For example, if you place a PushButton in a cell of a TablePane, the button will expand to fill the whole cell. If instead you place the button inside a BoxPane in the cell, it will retain its natural size, and you can set the horizontalAlignment and verticalAlignment styles of the BoxPane to, say, center the button within the cell.
Setting the fill style to true will cause the BoxPane to completely fill the space allotted by its container in the direction orthogonal to the layout direction. So, for a vertical layout, the width will be the width of its container and the children of the BoxPane will also be sized accordingly (i.e., full width of the space). And so for a horizontal layout, with fill set to true the height of the BoxPane will be the height allotted by its container and the children of the BoxPane will have their heights set accordingly.

        titleBarTablePane.getStyles().put("horizontalSpacing", 3);


        TablePane.Row titleRow = new TablePane.Row(-1);
        titleBarTablePane.getRows().add(titleRow);


        titleBoxPane = new BoxPane(Orientation.HORIZONTAL);
        titleBoxPane.getStyles().put("horizontalAlignment", HorizontalAlignment.LEFT);


        buttonBoxPane = new BoxPane(Orientation.HORIZONTAL);
        buttonBoxPane.getStyles().put("horizontalAlignment", HorizontalAlignment.RIGHT);
        buttonBoxPane.getStyles().put("verticalAlignment", VerticalAlignment.CENTER);


        titleRow.add(titleBoxPane);
        titleRow.add(buttonBoxPane);

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    @Override
    public void install(Component component) {
        super.install(component);


        BoxPane boxPane = (BoxPane)component;
        boxPane.getBoxPaneListeners().add(this);
    }

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        boxPane.getBoxPaneListeners().add(this);
    }


    @Override
    public int getPreferredWidth(int height) {
        BoxPane boxPane = (BoxPane)getComponent();


        int preferredWidth = 0;


        Orientation orientation = boxPane.getOrientation();
        if (orientation == Orientation.HORIZONTAL) {
            int heightUpdated = height;
            // Include padding in constraint
            if (heightUpdated != -1) {
                heightUpdated = Math.max(heightUpdated - (padding.top + padding.bottom), 0);
            }


            // Preferred width is the sum of the preferred widths of all components
            int j = 0;
            for (int i = 0, n = boxPane.getLength(); i < n; i++) {
                Component component = boxPane.get(i);


                if (component.isVisible()) {
                    preferredWidth += component.getPreferredWidth(fill ? heightUpdated : -1);
                    j++;
                }
            }


            // Include spacing
            if (j > 1) {
                preferredWidth += spacing * (j - 1);
            }
        } else {
            // Preferred width is the maximum preferred width of all components
            for (int i = 0, n = boxPane.getLength(); i < n; i++) {
                Component component = boxPane.get(i);


                if (component.isVisible()) {
                    preferredWidth = Math.max(preferredWidth,
                        component.getPreferredWidth());
                }

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        return preferredWidth;
    }


    @Override
    public int getPreferredHeight(int width) {
        BoxPane boxPane = (BoxPane)getComponent();


        int preferredHeight = 0;


        Orientation orientation = boxPane.getOrientation();
        if (orientation == Orientation.HORIZONTAL) {
            // Preferred height is the maximum preferred height of all components
            for (int i = 0, n = boxPane.getLength(); i < n; i++) {
                Component component = boxPane.get(i);


                if (component.isVisible()) {
                    preferredHeight = Math.max(preferredHeight,
                        component.getPreferredHeight());
                }
            }
        } else {
            int widthUpdated = width;
            // Include padding in constraint
            if (widthUpdated != -1) {
                widthUpdated = Math.max(widthUpdated - (padding.left + padding.right), 0);
            }


            // Preferred height is the sum of the preferred heights of all components
            int j = 0;
            for (int i = 0, n = boxPane.getLength(); i < n; i++) {
                Component component = boxPane.get(i);


                if (component.isVisible()) {
                    preferredHeight += component.getPreferredHeight(fill ? widthUpdated : -1);
                    j++;
                }

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        return preferredHeight;
    }


    @Override
    public Dimensions getPreferredSize() {
        BoxPane boxPane = (BoxPane)getComponent();


        int preferredWidth = 0;
        int preferredHeight = 0;


        switch (boxPane.getOrientation()) {
            case HORIZONTAL: {
                // Preferred width is the sum of the preferred widths of all components
                int j = 0;
                for (int i = 0, n = boxPane.getLength(); i < n; i++) {
                    Component component = boxPane.get(i);


                    if (component.isVisible()) {
                        Dimensions preferredSize = component.getPreferredSize();
                        preferredWidth += preferredSize.width;
                        preferredHeight = Math.max(preferredSize.height, preferredHeight);
                        j++;
                    }
                }


                // Include spacing
                if (j > 1) {
                    preferredWidth += spacing * (j - 1);
                }


                break;
            }


            case VERTICAL: {
                // Preferred height is the sum of the preferred heights of all components
                int j = 0;
                for (int i = 0, n = boxPane.getLength(); i < n; i++) {
                    Component component = boxPane.get(i);


                    if (component.isVisible()) {
                        Dimensions preferredSize = component.getPreferredSize();
                        preferredWidth = Math.max(preferredSize.width, preferredWidth);
                        preferredHeight += preferredSize.height;

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        return new Dimensions(preferredWidth, preferredHeight);
    }


    @Override
    public int getBaseline(int width, int height) {
        BoxPane boxPane = (BoxPane)getComponent();


        int baseline = -1;
        int contentHeight = 0;


        switch (boxPane.getOrientation()) {
            case HORIZONTAL: {
                if (fill) {
                    int clientHeight = Math.max(height - (padding.top + padding.bottom), 0);


                    for (Component component : boxPane) {

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        return baseline;
    }


    @Override
    public void layout() {
        BoxPane boxPane = (BoxPane)getComponent();
        int n = boxPane.getLength();


        int width = getWidth();
        int height = getHeight();


        Orientation orientation = boxPane.getOrientation();
        if (orientation == Orientation.HORIZONTAL) {
            int preferredWidth = getPreferredWidth(fill ? height : -1);


            // Determine the starting x-coordinate
            int x = 0;


            switch (horizontalAlignment) {
                case CENTER: {
                    x = (width - preferredWidth) / 2;
                    break;
                }
                case RIGHT: {
                    x = width - preferredWidth;
                    break;
                }
                case LEFT: {
                    break;
                }
                default: {
                    break;
                }
            }


            x += padding.left;


            // Lay out the components
            for (int i = 0; i < n; i++) {
                Component component = boxPane.get(i);


                if (component.isVisible()) {
                    int componentWidth = 0;
                    int componentHeight = 0;
                    int y = 0;


                    if (fill) {
                        componentHeight = Math.max(height - (padding.top
                            + padding.bottom), 0);


                        componentWidth = component.getPreferredWidth(componentHeight);
                    } else {
                        Dimensions preferredComponentSize = component.getPreferredSize();
                        componentWidth = preferredComponentSize.width;
                        componentHeight = preferredComponentSize.height;
                    }


                    switch (verticalAlignment) {
                        case TOP: {
                            y = padding.top;
                            break;
                        }


                        case CENTER: {
                            y = (height - componentHeight) / 2;
                            break;
                        }


                        case BOTTOM: {
                            y = height - padding.bottom - componentHeight;
                            break;
                        }


                        default: {
                            break;
                        }
                    }


                    // Set the component's size and position
                    component.setSize(componentWidth, componentHeight);
                    component.setLocation(x, y);


                    // Increment the x-coordinate
                    x += componentWidth + spacing;
                }
            }
        } else {
            int preferredHeight = getPreferredHeight(fill ? width : -1);


            // Determine the starting y-coordinate
            int y = 0;


            switch (verticalAlignment) {
                case CENTER: {
                    y = (height - preferredHeight) / 2;
                    break;
                }


                case BOTTOM: {
                    y = height - preferredHeight;
                    break;
                }
                case TOP:
                    break;


                default: {
                    break;
                }
            }


            y += padding.top;


            // Lay out the components
            for (int i = 0; i < n; i++) {
                Component component = boxPane.get(i);


                if (component.isVisible()) {
                    int componentWidth = 0;
                    int componentHeight = 0;
                    int x = 0;

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    @Override
    public void install(Component component) {
        super.install(component);


        BoxPane boxPane = (BoxPane)component;
        boxPane.getBoxPaneListeners().add(this);
    }

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        boxPane.getBoxPaneListeners().add(this);
    }


    @Override
    public int getPreferredWidth(int height) {
        BoxPane boxPane = (BoxPane)getComponent();


        int preferredWidth = 0;


        Orientation orientation = boxPane.getOrientation();
        if (orientation == Orientation.HORIZONTAL) {
            // Include padding in constraint
            if (height != -1) {
                height = Math.max(height - (padding.top + padding.bottom), 0);
            }


            // Preferred width is the sum of the preferred widths of all components
            int j = 0;
            for (int i = 0, n = boxPane.getLength(); i < n; i++) {
                Component component = boxPane.get(i);


                if (component.isVisible()) {
                    preferredWidth += component.getPreferredWidth(fill ? height : -1);
                    j++;
                }
            }


            // Include spacing
            if (j > 1) {
                preferredWidth += spacing * (j - 1);
            }
        } else {
            // Preferred width is the maximum preferred width of all components
            for (int i = 0, n = boxPane.getLength(); i < n; i++) {
                Component component = boxPane.get(i);


                if (component.isVisible()) {
                    preferredWidth = Math.max(preferredWidth,
                        component.getPreferredWidth());
                }

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        return preferredWidth;
    }


    @Override
    public int getPreferredHeight(int width) {
        BoxPane boxPane = (BoxPane)getComponent();


        int preferredHeight = 0;


        Orientation orientation = boxPane.getOrientation();
        if (orientation == Orientation.HORIZONTAL) {
            // Preferred height is the maximum preferred height of all components
            for (int i = 0, n = boxPane.getLength(); i < n; i++) {
                Component component = boxPane.get(i);


                if (component.isVisible()) {
                    preferredHeight = Math.max(preferredHeight,
                        component.getPreferredHeight());
                }
            }
        } else {
            // Include padding in constraint
            if (width != -1) {
                width = Math.max(width - (padding.left + padding.right), 0);
            }


            // Preferred height is the sum of the preferred heights of all components
            int j = 0;
            for (int i = 0, n = boxPane.getLength(); i < n; i++) {
                Component component = boxPane.get(i);


                if (component.isVisible()) {
                    preferredHeight += component.getPreferredHeight(fill ? width : -1);
                    j++;
                }

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