Made DropdownMenu extend Slick's AbstractComponent class.
Clicks and animation updates are now handled internally within the DropdownMenu class, which should simplify usage a bit. Override menuClicked() and itemSelected() instead for event handling. Signed-off-by: Jeffrey Han <itdelatrisu@gmail.com>
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@ -331,8 +331,35 @@ public class DownloadsMenu extends BasicGameState {
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// dropdown menu
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int serverWidth = (int) (width * 0.12f);
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serverMenu = new DropdownMenu<DownloadServer>(SERVERS,
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baseX + searchWidth + buttonMarginX * 3f + resetButtonWidth + rankedButtonWidth, searchY, serverWidth);
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serverMenu = new DropdownMenu<DownloadServer>(container, SERVERS,
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baseX + searchWidth + buttonMarginX * 3f + resetButtonWidth + rankedButtonWidth, searchY, serverWidth) {
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@Override
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public void itemSelected(int index, DownloadServer item) {
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resultList = null;
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startResult = 0;
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focusResult = -1;
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totalResults = 0;
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page = 0;
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pageResultTotal = 1;
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pageDir = Page.RESET;
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searchResultString = "Loading data from server...";
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lastQuery = null;
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pageDir = Page.RESET;
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if (searchQuery != null)
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searchQuery.interrupt();
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resetSearchTimer();
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}
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@Override
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public boolean menuClicked(int index) {
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// block input during beatmap importing
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if (importThread != null)
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return false;
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SoundController.playSound(SoundEffect.MENUCLICK);
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return true;
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}
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};
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serverMenu.setBackgroundColor(Colors.BLACK_BG_HOVER);
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serverMenu.setBorderColor(Color.black);
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serverMenu.setChevronRightColor(Color.white);
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@ -428,7 +455,7 @@ public class DownloadsMenu extends BasicGameState {
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rankedButton.draw(Color.magenta);
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// dropdown menu
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serverMenu.draw(g, mouseX, mouseY);
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serverMenu.render(container, g);
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// importing beatmaps
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if (importThread != null) {
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@ -460,7 +487,6 @@ public class DownloadsMenu extends BasicGameState {
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importButton.hoverUpdate(delta, mouseX, mouseY);
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resetButton.hoverUpdate(delta, mouseX, mouseY);
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rankedButton.hoverUpdate(delta, mouseX, mouseY);
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serverMenu.update(delta);
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// focus timer
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if (focusResult != -1 && focusTimer < FOCUS_DELAY)
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@ -523,29 +549,6 @@ public class DownloadsMenu extends BasicGameState {
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return;
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}
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// dropdown menu
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int oldServerIndex = serverMenu.getSelectedIndex(), serverMenuClickResult = serverMenu.click(x, y);
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if (serverMenuClickResult > -2) {
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SoundController.playSound(SoundEffect.MENUCLICK);
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if (serverMenuClickResult == -1 || serverMenuClickResult == oldServerIndex)
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return;
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resultList = null;
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startResult = 0;
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focusResult = -1;
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totalResults = 0;
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page = 0;
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pageResultTotal = 1;
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pageDir = Page.RESET;
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searchResultString = "Loading data from server...";
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lastQuery = null;
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pageDir = Page.RESET;
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if (searchQuery != null)
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searchQuery.interrupt();
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resetSearchTimer();
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return;
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}
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// search results
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DownloadNode[] nodes = resultList;
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if (nodes != null) {
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@ -865,6 +868,7 @@ public class DownloadsMenu extends BasicGameState {
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importButton.resetHover();
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resetButton.resetHover();
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rankedButton.resetHover();
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serverMenu.activate();
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serverMenu.reset();
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focusResult = -1;
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startResult = 0;
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@ -881,6 +885,7 @@ public class DownloadsMenu extends BasicGameState {
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public void leave(GameContainer container, StateBasedGame game)
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throws SlickException {
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search.setFocus(false);
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serverMenu.deactivate();
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SoundController.stopTrack();
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MusicController.resume();
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}
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@ -26,15 +26,31 @@ import org.newdawn.slick.Color;
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import org.newdawn.slick.Font;
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import org.newdawn.slick.Graphics;
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import org.newdawn.slick.Image;
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import org.newdawn.slick.Input;
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import org.newdawn.slick.SlickException;
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import org.newdawn.slick.UnicodeFont;
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import org.newdawn.slick.gui.AbstractComponent;
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import org.newdawn.slick.gui.GUIContext;
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/**
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* Simple dropdown menu.
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* <p>
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* Basic usage:
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* <ul>
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* <li>Override {@link #menuClicked(int)} to perform actions when the menu is clicked
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* (e.g. play a sound effect, block input under certain conditions).
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* <li>Override {@link #itemSelected(int, Object)} to perform actions when a new item is selected.
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* <li>Call {@link #activate()}/{@link #deactivate()} whenever the component is needed
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* (e.g. in a state's {@code enter} and {@code leave} events.
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* </ul>
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*/
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public class DropdownMenu<E> {
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public class DropdownMenu<E> extends AbstractComponent {
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/** Padding ratios for drawing. */
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private static final float PADDING_Y = 0.1f, CHEVRON_X = 0.03f;
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/** Whether this component is active. */
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private boolean active;
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/** The menu items. */
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private E[] items;
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@ -50,6 +66,9 @@ public class DropdownMenu<E> {
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/** The expanding animation progress. */
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private AnimatedValue expandProgress = new AnimatedValue(300, 0f, 1f, AnimationEquation.LINEAR);
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/** The last update time, in milliseconds. */
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private long lastUpdateTime;
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/** The top-left coordinates. */
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private float x, y;
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@ -76,39 +95,44 @@ public class DropdownMenu<E> {
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/**
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* Creates a new dropdown menu.
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* @param container the container rendering this menu
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* @param items the list of items (with names given as their {@code toString()} methods)
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* @param x the top-left x coordinate
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* @param y the top-left y coordinate
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*/
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public DropdownMenu(E[] items, float x, float y) {
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this(items, x, y, 0);
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public DropdownMenu(GUIContext container, E[] items, float x, float y) {
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this(container, items, x, y, 0);
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}
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/**
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* Creates a new dropdown menu with the given fonts.
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* @param container the container rendering this menu
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* @param items the list of items (with names given as their {@code toString()} methods)
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* @param x the top-left x coordinate
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* @param y the top-left y coordinate
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* @param normal the normal font
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* @param selected the font for the selected item
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*/
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public DropdownMenu(E[] items, float x, float y, UnicodeFont normal, UnicodeFont selected) {
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this(items, x, y, 0, normal, selected);
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public DropdownMenu(GUIContext container, E[] items, float x, float y, UnicodeFont normal, UnicodeFont selected) {
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this(container, items, x, y, 0, normal, selected);
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}
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/**
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* Creates a new dropdown menu with the given width.
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* @param container the container rendering this menu
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* @param items the list of items (with names given as their {@code toString()} methods)
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* @param x the top-left x coordinate
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* @param y the top-left y coordinate
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* @param width the menu width
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*/
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public DropdownMenu(E[] items, float x, float y, int width) {
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public DropdownMenu(GUIContext container, E[] items, float x, float y, int width) {
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super(container);
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init(items, x, y, width);
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}
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/**
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* Creates a new dropdown menu with the given width and fonts.
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* @param container the container rendering this menu
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* @param items the list of items (with names given as their {@code toString()} methods)
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* @param x the top-left x coordinate
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* @param y the top-left y coordinate
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@ -116,7 +140,8 @@ public class DropdownMenu<E> {
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* @param normal the normal font
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* @param selected the font for the selected item
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*/
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public DropdownMenu(E[] items, float x, float y, int width, UnicodeFont normal, UnicodeFont selected) {
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public DropdownMenu(GUIContext container, E[] items, float x, float y, int width, UnicodeFont normal, UnicodeFont selected) {
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super(container);
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this.fontNormal = normal;
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this.fontSelected = selected;
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init(items, x, y, width);
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@ -157,15 +182,29 @@ public class DropdownMenu<E> {
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this.width = Math.max(width, minWidth);
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}
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/**
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* Returns the width of the menu.
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*/
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@Override
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public void setLocation(int x, int y) {
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this.x = x;
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this.y = y;
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}
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@Override
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public int getX() { return (int) x; }
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@Override
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public int getY() { return (int) y; }
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@Override
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public int getWidth() { return width; }
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/**
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* Returns the height of the base item.
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*/
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public int getHeight() { return baseHeight; }
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@Override
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public int getHeight() { return (expanded) ? height : baseHeight; }
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/** Activates the component. */
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public void activate() { this.active = true; }
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/** Deactivates the component. */
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public void deactivate() { this.active = false; }
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/**
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* Returns whether the dropdown menu is currently open.
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@ -199,14 +238,19 @@ public class DropdownMenu<E> {
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return (cx > x && cx < x + width && cy > y && cy < y + baseHeight);
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}
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/**
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* Draws the dropdown menu.
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* @param g the graphics context
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* @param cx the mouse x coordinate
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* @param cy the mouse y coordinate
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*/
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public void draw(Graphics g, float cx, float cy) {
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int idx = getIndexAt(cx, cy);
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@Override
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public void render(GUIContext container, Graphics g) throws SlickException {
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// update animation
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long time = container.getTime();
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if (lastUpdateTime > 0) {
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int delta = (int) (time - lastUpdateTime);
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expandProgress.update((expanded) ? delta : -delta * 2);
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}
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this.lastUpdateTime = time;
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// get parameters
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Input input = container.getInput();
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int idx = getIndexAt(input.getMouseX(), input.getMouseY());
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float t = expandProgress.getValue();
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if (expanded)
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t = AnimationEquation.OUT_CUBIC.calc(t);
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@ -274,40 +318,58 @@ public class DropdownMenu<E> {
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return (int) ((cy - (y + offsetY)) / offsetY);
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}
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/**
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* Updates the animations by a delta interval.
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* @param delta the delta interval since the last call
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*/
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public void update(int delta) {
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expandProgress.update((expanded) ? delta : -delta * 2);
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}
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/**
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* Registers a click at the given location.
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* If the base item is clicked and the menu is unexpanded, it will be expanded;
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* in all other cases, the menu will be unexpanded. If an item different from
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* the current one is selected, that item will be selected.
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* @param cx the x coordinate
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* @param cy the y coordinate
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* @return the index of the item at the given location, -1 for the base item,
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* and -2 if there is no item at the location
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*/
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public int click(float cx, float cy) {
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int idx = getIndexAt(cx, cy);
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this.expanded = (idx == -1) ? !expanded : false;
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if (idx >= 0)
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this.itemIndex = idx;
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return idx;
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}
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/**
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* Resets the menu state.
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*/
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public void reset() {
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this.expanded = false;
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this.lastUpdateTime = 0;
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expandProgress.setTime(0);
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}
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@Override
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public void mousePressed(int button, int x, int y) {
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if (!active)
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return;
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if (button == Input.MOUSE_MIDDLE_BUTTON)
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return;
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int idx = getIndexAt(x, y);
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if (idx == -2) {
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this.expanded = false;
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return;
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}
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if (!menuClicked(idx))
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return;
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this.expanded = (idx == -1) ? !expanded : false;
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if (idx >= 0 && itemIndex != idx) {
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this.itemIndex = idx;
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itemSelected(idx, items[idx]);
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}
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consumeEvent();
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}
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/**
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* Notification that a new item was selected (via override).
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* @param index the index of the item selected
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* @param item the item selected
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*/
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public void itemSelected(int index, E item) {}
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/**
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* Notification that the menu was clicked (via override).
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* @param index the index of the item clicked, or -1 for the base item
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* @return true to process the click, or false to block/intercept it
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*/
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public boolean menuClicked(int index) { return true; }
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@Override
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public void setFocus(boolean focus) { /* does not currently use the "focus" concept */ }
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@Override
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public void mouseReleased(int button, int x, int y) { /* does not currently use the "focus" concept */ }
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/**
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* Selects the item at the given index.
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* @param index the list item index
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