com.idp.engine.ui.graphics.base.Navbar.java Source code

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Here is the source code for com.idp.engine.ui.graphics.base.Navbar.java

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package com.idp.engine.ui.graphics.base;

import com.badlogic.gdx.Gdx;
import com.badlogic.gdx.graphics.Color;
import com.badlogic.gdx.scenes.scene2d.*;
import com.badlogic.gdx.scenes.scene2d.actions.Actions;
import com.badlogic.gdx.utils.Align;
import com.idp.engine.App;

/**
 * Navigation bar element.
 * Contains text, supports dropdown, also may contain icons to the left or to the right of the text.
 *
 * @author dhabensky <dhabensky@idp-crew.com>
 */
public class Navbar extends Rect {

    private final com.idp.engine.ui.graphics.actors.Text text;
    private final Group textGroup;
    private final Group leftIcons;
    private final Group rightIcons;

    private Color contentColor;
    private final float iconSize;
    private boolean hasDropDown;

    private Rect dropdownMenu;

    public Navbar() {

        // todo: read style from config

        setName("navbar");
        this.contentColor = Color.BLACK;
        this.iconSize = App.dp2px(40);
        float h = App.dp2px(56);

        setSize(Gdx.graphics.getWidth(), h);
        setBorder(0, 0, App.dp2px(1), 0);
        setBorderColor(Color.BLACK);
        setBackgroundColor(Color.CLEAR);
        float padleft = App.dp2px(8);
        float padright = App.dp2px(8);

        textGroup = new Group();
        textGroup.setSize(Gdx.graphics.getWidth() - App.dp2px(168), App.dp2px(24));

        this.text = new com.idp.engine.ui.graphics.actors.Text("", App.getResources().getLabelStyle("navbar"));
        text.setWidth(Gdx.graphics.getWidth() - App.dp2px(168));
        text.setHeight(App.dp2px(24));
        text.setAlignment(Align.center);

        textGroup.addActor(text);
        text.setY((textGroup.getHeight() - text.getHeight()) / 2);
        text.setX((textGroup.getWidth() - text.getWidth()) / 2);

        this.leftIcons = new Group();
        leftIcons.setSize(iconSize, iconSize);
        leftIcons.setX(padleft);
        leftIcons.setY((h - iconSize) / 2);

        this.rightIcons = new Group();
        rightIcons.setSize(iconSize, iconSize);
        rightIcons.setX(getWidth() - padright - iconSize);
        rightIcons.setY((h - iconSize) / 2);

        addActor(leftIcons);
        addActor(textGroup);
        addActor(rightIcons);

        textGroup.setY((getHeight() - text.getHeight()) / 2);
        textGroup.setX((getWidth() - textGroup.getWidth()) / 2);
    }

    public void setText(String name) {
        text.setText(name);
        if (hasDropDown) {
            float x = text.getX() + (text.getWidth() + text.getGlyphLayout().width) * 0.5f + App.dp2px(8);
            textGroup.findActor("chevron").setX(x);
        }
    }

    public Group getTextGroup() {
        return textGroup;
    }

    public void setDropdownMenu(Rect menu) {
        dropdownMenu = menu;
        if (menu != null) {
            menu.setVisible(false);
            if (!hasDropDown)
                addChevron();
            this.hasDropDown = true;
        } else {
            if (hasDropDown)
                removeChevron();
            this.hasDropDown = false;
        }
    }

    public void openMenu() {
        getParent().addActorBefore(this, dropdownMenu);
        dropdownMenu.clearActions();
        dropdownMenu.setY(getHeight() - dropdownMenu.getHeight());
        dropdownMenu.setVisible(true);
        dropdownMenu.setTouchable(Touchable.enabled);
        dropdownMenu.addAction(Actions.moveTo(0, getHeight(), 0.2f));
    }

    public void closeMenu() {
        dropdownMenu.clearActions();
        dropdownMenu.addAction(Actions.sequence(Actions.moveTo(0, getHeight() - dropdownMenu.getHeight(), 0.2f),
                Actions.visible(false), Actions.touchable(Touchable.disabled), Actions.removeActor(dropdownMenu)));
    }

    public void flipChevron() {
        com.idp.engine.ui.graphics.actors.ImageActor i = textGroup.findActor("chevron");
        if (i != null)
            i.getSprite().flip(false, true);
    }

    public void setContentColor(Color contentColor) {
        this.contentColor = contentColor;
        text.getStyle().fontColor = contentColor;
        for (Actor a : leftIcons.getChildren()) {
            a.setColor(contentColor);
        }
        for (Actor a : rightIcons.getChildren()) {
            a.setColor(contentColor);
        }
    }

    public Color getContentColor() {
        return contentColor;
    }

    public Group getLeftIcons() {
        return leftIcons;
    }

    public Group getRightIcons() {
        return rightIcons;
    }

    public float getIconSize() {
        return iconSize;
    }

    private void addChevron() {
        com.idp.engine.ui.graphics.actors.ImageActor i = new com.idp.engine.ui.graphics.actors.ImageActor(
                App.getResources().getIcon("chevron"));
        i.setColor(Color.BLACK);
        i.setSize(App.dp2px(12), App.dp2px(12));
        i.setName("chevron");
        textGroup.addActor(i);
        i.setX(text.getX() + (text.getWidth() + text.getGlyphLayout().width) * 0.5f + App.dp2px(8));
        i.setY((textGroup.getHeight() - i.getHeight()) / 2);
    }

    private void removeChevron() {
        if (textGroup.findActor("chevron") != null) {
            textGroup.removeActor(textGroup.findActor("chevron"));
        }
    }

    public static class NavButton extends Rect {

        private final com.idp.engine.ui.graphics.actors.ImageActor icon;
        private final float padding;

        public NavButton(String name) {
            this.icon = new com.idp.engine.ui.graphics.actors.ImageActor(App.getResources().getIcon(name));
            this.padding = App.dp2px(12);
            addActor(icon);
            setSize(App.dp2px(40), App.dp2px(40));

        }

        private void layout() {
            icon.setSize(getWidth() - padding * 2, getHeight() - padding * 2);
            icon.setX((getWidth() - icon.getWidth()) / 2);
            icon.setY((getHeight() - icon.getHeight()) / 2);
        }

        @Override
        protected void sizeChanged() {
            super.sizeChanged();
            layout();
        }

        @Override
        public void setColor(Color color) {
            super.setColor(color);
            icon.setColor(color);
        }
    }
}