125 lines
3.9 KiB
Java
125 lines
3.9 KiB
Java
package game.gui.element;
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import game.gui.Font;
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import game.renderer.Drawing;
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import game.util.Displayable;
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import game.util.ExtMath;
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import game.util.Formatter;
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import game.util.Util;
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import game.window.Button;
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public class Dropdown<T> extends Element {
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public class Handle extends Element {
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private Handle(boolean up) {
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super(Dropdown.this.pos_x, Dropdown.this.pos_y + (up ? -(Font.YGLYPH * Dropdown.this.values.length + 2) : Dropdown.this.size_y), Dropdown.this.size_x, Font.YGLYPH * Dropdown.this.values.length + 2, null);
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StringBuilder sb = new StringBuilder();
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for(T value : Dropdown.this.values) {
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if(sb.length() > 0)
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sb.append('\n');
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sb.append(value instanceof Displayable ? ((Displayable)value).getDisplay() : value.toString());
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}
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this.setText(sb.toString());
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this.visible = this.r_dirty = false;
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}
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public void updateText() {
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}
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// protected boolean isTextCenteredX() {
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// return false;
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// }
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//
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// protected boolean isTextCenteredY() {
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// return false;
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// }
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public boolean canClick() {
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return false;
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}
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public void deselect() {
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this.visible = false;
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this.r_dirty = true;
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}
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public void mouse(Button btn, int x, int y, boolean ctrl, boolean shift) {
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Dropdown drop = Dropdown.this;
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int prev = drop.value;
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drop.value = (y - (this.pos_y + this.margin_y1)) * drop.values.length / (this.size_y - (this.margin_y1 + this.margin_y2));
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drop.value = ExtMath.clampi(drop.value, 0, drop.values.length - 1);
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if(drop.value != prev) {
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drop.func.use(drop, drop.getValue());
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drop.formatText();
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this.playSound();
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}
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this.visible = false;
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this.r_dirty = true;
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}
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public void drawHover() {
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int m = ((this.gm.mouse_y - (this.pos_y + this.margin_y1)) * Dropdown.this.values.length / (this.size_y - (this.margin_y1 + this.margin_y2)));
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// if((sys.mouse_y - this.pos_y) < (this.size_y - this.margin_y2))
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Drawing.drawRect(this.pos_x + this.margin_x1, this.pos_y + this.margin_y1 + ExtMath.clampi(m, 0, Dropdown.this.values.length - 1) * ((this.size_y - (this.margin_y1 + this.margin_y2)) / Dropdown.this.values.length), this.size_x - (this.margin_x1 + this.margin_x2), (this.size_y - (this.margin_y1 + this.margin_y2)) / Dropdown.this.values.length, this.gm.style.hover);
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}
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}
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public static interface Callback<T> {
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void use(Dropdown<T> elem, T value);
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}
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private final Callback<T> func;
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private final T[] values;
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private final Handle handle;
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private final int def;
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private int value;
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public Dropdown(int x, int y, int w, int h, boolean up, T[] values, T def, T init, Callback<T> callback, Formatter<Dropdown<T>> formatter) {
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super(x, y, w, h, formatter);
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this.func = callback;
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this.values = values;
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this.def = Util.indexOfChecked(this.values, def);
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this.value = Util.indexOfChecked(this.values, init);
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this.handle = new Handle(up);
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this.formatText();
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}
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public Dropdown(int x, int y, int w, int h, boolean up, T[] values, T def, T init, Callback<T> callback, final String text) {
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this(x, y, w, h, up, values, def, init, callback, new Formatter<Dropdown<T>>() {
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public String use(Dropdown<T> elem) {
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T value = elem.getValue();
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return String.format("%s: %s", text, value instanceof Displayable ? ((Displayable)value).getDisplay() : value.toString());
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}
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});
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}
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public T getValue() {
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return this.values[this.value];
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}
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public void setValue(T value) {
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this.value = Util.indexOfChecked(this.values, value);
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}
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public void mouse(Button btn, int x, int y, boolean ctrl, boolean shift) {
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int prev = this.value;
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if(ctrl || (btn == Button.MOUSE_MIDDLE)) {
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if((this.value = this.def) != prev) {
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this.func.use(this, this.getValue());
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this.formatText();
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this.playSound();
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}
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}
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else if(this.gui != null) {
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Handle drop = this.handle;
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drop.visible = true;
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drop.r_dirty = true;
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this.gui.selected = drop;
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this.playSound();
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}
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}
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public Handle getHandle() {
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return this.handle;
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}
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}
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