Split mod into core, recording, replay, render[todo], paths[todo] and extras[wip] modules

Move everything to com.replaymod package
Add KeyBindingRegistry and SettingsRegistry
Recreate settings GUI with new GUI API and dynamically from SettingsRegistry
Use ReplayFile from ReplayStudio
ReplayHandler is now object oriented
Add GuiOverlay, GuiSlider and GuiTexturedButton to GUI API
Rewrite both overlays to use new GUI API
Fix size capping in vertical and horizontal layout
Allow CustomLayouts to have parents
Fix tooltip rendering when close to screen border
Allow changing of columns in GridLayout

src/main/java/com/replaymod/extras/Extra.java

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+package com.replaymod.extras;
+
+import com.replaymod.core.ReplayMod;
+
+public interface Extra {
+    void register(ReplayMod mod) throws Exception;
+}

src/main/java/com/replaymod/extras/HotkeyButtons.java

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+package com.replaymod.extras;
+
+import com.replaymod.core.ReplayMod;
+import com.replaymod.replay.events.ReplayOpenEvent;
+import com.replaymod.replay.gui.overlay.GuiReplayOverlay;
+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.element.GuiLabel;
+import de.johni0702.minecraft.gui.element.GuiTexturedButton;
+import de.johni0702.minecraft.gui.layout.CustomLayout;
+import de.johni0702.minecraft.gui.layout.GridLayout;
+import de.johni0702.minecraft.gui.layout.HorizontalLayout;
+import de.johni0702.minecraft.gui.layout.LayoutData;
+import net.minecraft.client.settings.KeyBinding;
+import net.minecraftforge.fml.common.FMLCommonHandler;
+import net.minecraftforge.fml.common.eventhandler.SubscribeEvent;
+import org.lwjgl.input.Keyboard;
+
+import java.util.Collection;
+import java.util.Collections;
+import java.util.Map;
+
+public class HotkeyButtons implements Extra {
+    private ReplayMod mod;
+
+    @Override
+    public void register(ReplayMod mod) throws Exception {
+        this.mod = mod;
+
+        FMLCommonHandler.instance().bus().register(this);
+    }
+
+    @SubscribeEvent
+    public void postReplayOpen(ReplayOpenEvent.Post event) {
+        GuiReplayOverlay overlay = event.getReplayHandler().getOverlay();
+        new Gui(mod, overlay);
+    }
+
+    public static final class Gui {
+        private final GuiTexturedButton toggleButton;
+        private final GridLayout panelLayout;
+        private final GuiPanel panel;
+
+        private boolean open;
+
+        public Gui(ReplayMod mod, GuiReplayOverlay overlay) {
+            toggleButton = new GuiTexturedButton(overlay).setSize(20, 20)
+                    .setTexture(ReplayMod.TEXTURE, ReplayMod.TEXTURE_SIZE).setTexturePosH(0, 0)
+                    .onClick(new Runnable() {
+                        @Override
+                        public void run() {
+                            open = !open;
+                        }
+                    });
+
+            panel = new GuiPanel(overlay) {
+                @Override
+                public Collection<GuiElement> getChildren() {
+                    return open ? super.getChildren() : Collections.<GuiElement>emptyList();
+                }
+
+                @Override
+                public Map<GuiElement, LayoutData> getElements() {
+                    return open ? super.getElements() : Collections.<GuiElement, LayoutData>emptyMap();
+                }
+            }.setLayout(panelLayout = new GridLayout().setSpacingX(5).setSpacingY(5).setColumns(1));
+
+            for (final KeyBinding keyBinding : mod.getKeyBindingRegistry().getKeyBindings().values()) {
+                String keyName = "???";
+                try {
+                    keyName = Keyboard.getKeyName(keyBinding.getKeyCode());
+                } catch (ArrayIndexOutOfBoundsException e) {
+                    // Apparently windows likes to press strange keys, see https://www.replaymod.com/forum/thread/55
+                }
+                panel.addElements(null, new GuiPanel().setSize(150, 20).setLayout(new HorizontalLayout().setSpacing(2))
+                        .addElements(new HorizontalLayout.Data(0.5),
+                                new GuiButton().setSize(20, 20).setLabel(keyName).onClick(new Runnable() {
+                                    @Override
+                                    public void run() {
+                                        keyBinding.pressTime++;
+                                        FMLCommonHandler.instance().fireKeyInput();
+                                    }
+                                }),
+                                new GuiLabel().setI18nText(keyBinding.getKeyDescription())
+                        ));
+            }
+
+            overlay.setLayout(new CustomLayout<GuiReplayOverlay>(overlay.getLayout()) {
+                @Override
+                protected void layout(GuiReplayOverlay container, int width, int height) {
+                    panelLayout.setColumns((width - 10) / 105);
+                    size(panel, panelLayout.calcMinSize(container));
+
+                    pos(toggleButton, 5, height - 25);
+                    pos(panel, 5, y(toggleButton) - 5 - height(panel));
+                }
+            });
+        }
+    }
+}

src/main/java/com/replaymod/extras/ReplayModExtras.java

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+package com.replaymod.extras;
+
+import com.replaymod.core.ReplayMod;
+import net.minecraftforge.fml.common.Mod;
+import net.minecraftforge.fml.common.event.FMLInitializationEvent;
+import net.minecraftforge.fml.common.event.FMLPreInitializationEvent;
+import org.apache.logging.log4j.Logger;
+
+import java.util.Arrays;
+import java.util.List;
+
+@Mod(modid = ReplayModExtras.MOD_ID, useMetadata = true)
+public class ReplayModExtras {
+    public static final String MOD_ID = "replaymod-extras";
+
+    @Mod.Instance(MOD_ID)
+    public static ReplayModExtras instance;
+
+    @Mod.Instance(ReplayMod.MOD_ID)
+    private static ReplayMod core;
+
+    private static final List<Class<? extends Extra>> builtin = Arrays.<Class<? extends Extra>>asList(
+            HotkeyButtons.class
+    );
+
+    private Logger logger;
+
+    @Mod.EventHandler
+    public void preInit(FMLPreInitializationEvent event) {
+        logger = event.getModLog();
+    }
+
+    @Mod.EventHandler
+    public void init(FMLInitializationEvent event) {
+        for (Class<? extends Extra> cls : builtin) {
+            try {
+                Extra extra = cls.newInstance();
+                extra.register(core);
+            } catch (Throwable t) {
+                logger.warn("Failed to load extra " + cls.getName() + ": ", t);
+            }
+        }
+    }
+}