Example usage for com.google.gwt.widgetideas.client HSliderBar HSliderBar

Introduction

In this page you can find the example usage for com.google.gwt.widgetideas.client HSliderBar HSliderBar.

Prototype

public HSliderBar(double minValue, double maxValue, LabelFormatter labelFormatter,
        AbstractImagePrototype[] images, String styleBaseName) 

Source Link

Document

Create a slider bar.

Usage

From source file:org.vectomatic.client.rep.view.PlainColorMenu.java

License:Open Source License

public PlainColorMenu(RepApplication app, StyleController styleController) {
    super(true, true);
    _app = app;/*from w  ww .  j  ava2s.  co  m*/
    _pickColorController = new PickColorController(app, styleController);
    setStyleName("plainColorMenu");
    ColorEditor colorEditor = new ColorEditor(_app);
    _paletteEditor = new PaletteEditor(_app, colorEditor, this);
    _styleController = styleController;
    _paletteWidget = new PaletteWidget(_paletteEditor.getSelectedPalette(), null);
    _paletteWidget.addChangeListener(new ChangeListener() {
        public void onChange(Widget sender) {
            _styleController.setStyle(_paletteWidget.getSelectedColor());
            hide();
        }
    });

    Label alphaLabel = new Label(_app.getConstants().transparencyLabel());
    _alphaTextBox = new TextBox();
    _alphaTextBox.setMaxLength(3);
    _alphaTextBox.setWidth("50px");
    _alphaTextBox.addChangeListener(new ChangeListener() {
        public void onChange(Widget sender) {
            if (!_eventsDisabled) {
                _eventsDisabled = true;
                try {
                    double value = Double.parseDouble(_alphaTextBox.getText());
                    if (value >= _alphaSlider.getMinValue() && value <= _alphaSlider.getMaxValue()) {
                        _alphaSlider.setCurrentValue(value);
                        _styleController.setOpacity(
                                new FloatAttributeValue((float) (_alphaSlider.getCurrentValue() / 100d)));
                    } else {
                        _alphaTextBox.setText(Integer.toString((int) _alphaSlider.getCurrentValue()));
                    }
                } catch (NumberFormatException e) {
                }
                _eventsDisabled = false;
            }
        }
    });

    _alphaSlider = new HSliderBar(0d, 100d, null,
            new AbstractImagePrototype[] { _app.getIcons().chslider(), _app.getIcons().chsliderSliding() },
            "plainColorMenu-HSliderBar");
    _alphaSlider.setStepSize(1d);
    _alphaSlider.addSliderListener(new SliderListenerAdapter() {
        @Override
        public void onValueChanged(SliderBar slider, double curValue) {
            if (!_eventsDisabled) {
                _eventsDisabled = true;
                _alphaTextBox.setText(Integer.toString((int) curValue));
                _eventsDisabled = false;
            }
        }

        @Override
        public void onStopSliding(SliderBar slider) {
            _styleController.setOpacity(new FloatAttributeValue((float) (slider.getCurrentValue() / 100d)));
        }
    });
    _alphaSlider.setCurrentValue(0d);

    HorizontalPanel hpanel = new HorizontalPanel();
    hpanel.add(alphaLabel);
    hpanel.add(_alphaTextBox);
    hpanel.add(_alphaSlider);

    Label editPaletteLabel = new Label(_app.getConstants().editPaletteButton());
    editPaletteLabel.setStyleName("plainColorMenuItem");
    editPaletteLabel.addClickListener(new ClickListener() {
        public void onClick(Widget sender) {
            editPalette();
        }
    });
    Label pickColorLabel = new Label(_app.getConstants().pickColorButton());
    pickColorLabel.setStyleName("plainColorMenuItem");
    pickColorLabel.addClickListener(new ClickListener() {
        public void onClick(Widget sender) {
            pickColor();
        }
    });
    VerticalPanel vpanel = new VerticalPanel();
    vpanel.add(_paletteWidget);
    vpanel.add(hpanel);
    vpanel.add(editPaletteLabel);
    vpanel.add(pickColorLabel);
    setWidget(vpanel);
}

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