edu.caltech.ipac.firefly.ui.BadgeButton.java Source code

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Here is the source code for edu.caltech.ipac.firefly.ui.BadgeButton.java

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/*
 * License information at https://github.com/Caltech-IPAC/firefly/blob/master/License.txt
 */
package edu.caltech.ipac.firefly.ui;
/**
 * User: roby
 * Date: 5/6/14
 * Time: 11:46 AM
 */

import com.google.gwt.event.dom.client.ClickEvent;
import com.google.gwt.event.dom.client.ClickHandler;
import com.google.gwt.user.client.ui.FlowPanel;
import com.google.gwt.user.client.ui.HTML;
import com.google.gwt.user.client.ui.Image;
import com.google.gwt.user.client.ui.Label;
import com.google.gwt.user.client.ui.Widget;
import com.google.web.bindery.event.shared.HandlerRegistration;

/**
* @author Trey Roby
*/
public class BadgeButton {
    private final FlowPanel panel = new FlowPanel();
    private Badge badge = null;
    private final boolean useBorder;

    public BadgeButton(Image image) {
        this(image, null, true);
    }

    public BadgeButton(Image image, String styleName, boolean backgroundIsDark) {
        this.useBorder = false;
        init(styleName, backgroundIsDark);
        setIcon(image);
    }

    public BadgeButton(String text, String styleName, boolean useBorder) {
        this.useBorder = useBorder;
        init(styleName, false);
        setText(text);
    }

    private void init(String styleName, boolean backgroundIsDark) {
        panel.setStyleName("firefly-v2-MenuItem");
        if (backgroundIsDark)
            panel.addStyleName("firefly-v2-MenuItem-dark");
        else
            panel.addStyleName("firefly-v2-MenuItem-light");
        if (styleName != null)
            panel.addStyleName(styleName);
    }

    public void setIcon(Image image) {
        panel.clear();
        panel.add(image);
        if (getHasBadge())
            panel.add(badge.badgeHTML);
    }

    public void setText(String text) {
        panel.clear();
        Label l = new Label(text);
        if (useBorder) {
            GwtUtil.setStyles(l, "border", "1px solid rgba(0,0,0,.5)", "padding", "3px", "borderRadius", "5px");
        }
        l.setStyleName("menuItemText");
        panel.add(l);
        if (getHasBadge())
            panel.add(badge.badgeHTML);
    }

    public Widget getWidget() {
        return panel;
    }

    public boolean isEnabled() {
        return !panel.getStyleName().contains("firefly-MenuItem-v2-disabled");
    }

    public void setEnabled(boolean enabled) {
        if (enabled)
            panel.removeStyleName("firefly-MenuItem-v2-disabled");
        else
            panel.addStyleName("firefly-MenuItem-v2-disabled");
    }

    public void setAttention(boolean attention) {
        if (attention)
            panel.addStyleName("firefly-MenuItem-v2-attention");
        else
            panel.removeStyleName("firefly-MenuItem-v2-attention");
    }

    public void setTitle(String tip) {
        panel.setTitle(tip);
    }

    public void setBadgeCount(int cnt) {
        if (cnt == 0 && getHasBadge()) {
            this.panel.remove(this.badge.badgeHTML);
            badge.badgeHTML = null;
        }

        if (cnt > 0) {
            if (badge == null)
                badge = new Badge();
            if (badge.badgeHTML == null) {
                this.badge.badgeHTML = new HTML(cnt + "");
                panel.add(this.badge.badgeHTML);
                badge.badgeHTML.setStyleName("firefly-v2-badge");
            } else {
                badge.badgeHTML.setHTML(cnt + "");
            }
            badge.badgeHTML.removeStyleName("firefly-v2-badge-1-digit");
            badge.badgeHTML.removeStyleName("firefly-v2-badge-2-digit");
            if (cnt > 9) {
                badge.badgeHTML.addStyleName("firefly-v2-badge-2-digit");
            } else {
                badge.badgeHTML.addStyleName("firefly-v2-badge-1-digit");
            }
            updateOffsets();
        }
    }

    private void updateOffsets() {
        if (getHasBadge()) {
            if (badge.useDiffOffset) {
                GwtUtil.setStyle(badge.badgeHTML, "top", badge.offsetY + "px");
            } else {
                GwtUtil.setStyle(badge.badgeHTML, "top", "");
            }
        }

    }

    public HandlerRegistration addClickHandler(ClickHandler handler) {
        return panel.addDomHandler(handler, ClickEvent.getType());
    }

    public static Widget makeBadge(int cnt) {
        Widget badge = new HTML(cnt + "");
        badge.setStyleName("firefly-v2-badge");
        if (cnt > 9) {
            badge.addStyleName("firefly-v2-badge-2-digit");
        } else {
            badge.addStyleName("firefly-v2-badge-1-digit");

        }
        return badge;
    }

    private boolean getHasBadge() {
        return badge != null && badge.badgeHTML != null;
    }

    public void setBadgeYOffset(int offsetY) {
        if (badge == null)
            badge = new Badge();
        badge.useDiffOffset = true;
        badge.offsetY = offsetY;
        updateOffsets();
    }

    private static class Badge {
        HTML badgeHTML = null;
        boolean useDiffOffset = false;
        int offsetY = 0;

    }

}