Add support for popups to the GUI API

src/main/java/de/johni0702/minecraft/gui/popup/GuiYesNoPopup.java

@@ -0,0 +1,118 @@
+/*
+ * Copyright (c) 2015 johni0702
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ */
+
+package de.johni0702.minecraft.gui.popup;
+
+import com.google.common.util.concurrent.ListenableFuture;
+import com.google.common.util.concurrent.SettableFuture;
+import de.johni0702.minecraft.gui.container.GuiContainer;
+import de.johni0702.minecraft.gui.container.GuiPanel;
+import de.johni0702.minecraft.gui.element.GuiButton;
+import de.johni0702.minecraft.gui.element.GuiElement;
+import de.johni0702.minecraft.gui.layout.HorizontalLayout;
+import de.johni0702.minecraft.gui.layout.VerticalLayout;
+import de.johni0702.minecraft.gui.utils.Colors;
+import lombok.Getter;
+import lombok.Setter;
+import lombok.experimental.Accessors;
+import org.lwjgl.util.Dimension;
+
+public class GuiYesNoPopup extends AbstractGuiPopup<GuiYesNoPopup> {
+    public static GuiYesNoPopup open(GuiContainer container, GuiElement... info) {
+        GuiYesNoPopup popup = new GuiYesNoPopup(container).setBackgroundColor(Colors.DARK_TRANSPARENT)
+                .setLayer(container.getMaxLayer() + 1);
+        popup.getInfo().addElements(new VerticalLayout.Data(0.5), info);
+        return popup;
+    }
+
+    private final SettableFuture<Boolean> future = SettableFuture.create();
+
+    @Getter
+    private final GuiButton yesButton = new GuiButton().setSize(150, 20).onClick(new Runnable() {
+        @Override
+        public void run() {
+            close();
+            future.set(true);
+        }
+    });
+
+    @Getter
+    private final GuiButton noButton = new GuiButton().setSize(150, 20).onClick(new Runnable() {
+        @Override
+        public void run() {
+            close();
+            future.set(false);
+        }
+    });
+
+    @Getter
+    private final GuiPanel info = new GuiPanel().setMinSize(new Dimension(320, 50))
+            .setLayout(new VerticalLayout(VerticalLayout.Alignment.TOP).setSpacing(2));
+
+    @Getter
+    private final GuiPanel buttons = new GuiPanel()
+            .setLayout(new HorizontalLayout(HorizontalLayout.Alignment.CENTER).setSpacing(5))
+            .addElements(new HorizontalLayout.Data(0.5), yesButton, noButton);
+
+    {
+        popup.setLayout(new VerticalLayout().setSpacing(10))
+                .addElements(new VerticalLayout.Data(0.5), info, buttons);
+    }
+
+    @Getter
+    @Setter
+    @Accessors(chain = true)
+    private int layer;
+
+    public GuiYesNoPopup(GuiContainer container) {
+        super(container);
+    }
+
+    public GuiYesNoPopup setYesLabel(String label) {
+        yesButton.setLabel(label);
+        return this;
+    }
+
+    public GuiYesNoPopup setNoLabel(String label) {
+        noButton.setLabel(label);
+        return this;
+    }
+
+    public GuiYesNoPopup setYesI18nLabel(String label, Object...args) {
+        yesButton.setI18nLabel(label, args);
+        return this;
+    }
+
+    public GuiYesNoPopup setNoI18nLabel(String label, Object...args) {
+        noButton.setI18nLabel(label, args);
+        return this;
+    }
+
+    public ListenableFuture<Boolean> getFuture() {
+        return future;
+    }
+
+    @Override
+    protected GuiYesNoPopup getThis() {
+        return this;
+    }
+}