equivalent-exchange-3/src/main/java/com/pahimar/ee3/client/gui/inventory/GuiAlchenomicon.java

package com.pahimar.ee3.client.gui.inventory;

import com.pahimar.ee3.client.gui.element.ElementSearchField;
import com.pahimar.ee3.inventory.ContainerAlchenomicon;
import com.pahimar.ee3.network.PacketHandler;
import com.pahimar.ee3.network.message.MessageGuiElementClicked;
import com.pahimar.ee3.reference.Messages;
import com.pahimar.ee3.reference.Textures;
import com.pahimar.repackage.cofh.lib.gui.GuiBase;
import com.pahimar.repackage.cofh.lib.gui.GuiColor;
import com.pahimar.repackage.cofh.lib.gui.element.ElementButton;
import com.pahimar.repackage.cofh.lib.gui.element.ElementTextField;
import cpw.mods.fml.relauncher.Side;
import cpw.mods.fml.relauncher.SideOnly;
import net.minecraft.entity.player.InventoryPlayer;
import net.minecraft.inventory.Slot;
import net.minecraft.item.ItemStack;
import net.minecraft.util.StatCollector;
import org.lwjgl.opengl.GL11;

@SideOnly(Side.CLIENT)
public class GuiAlchenomicon extends GuiBase {
    private ElementButton prevPageButton;
    private ElementButton nextPageButton;
    private ElementTextField searchTextField;

    public GuiAlchenomicon(InventoryPlayer inventoryPlayer, ItemStack itemStack) {
        super(
            new ContainerAlchenomicon(inventoryPlayer.player, itemStack),
            Textures.Gui.ALCHENOMICON
        );
        xSize = 256;
        ySize = 226;
    }

    @Override
    public void initGui() {
        super.initGui();

        this.drawTitle = false;
        this.drawInventory = false;

        prevPageButton = new ElementButton(
            this,
            15,
            177,
            "prev",
            0,
            0,
            20,
            0,
            40,
            0,
            20,
            10,
            60,
            10,
            Textures.Gui.Elements.ARROW_LEFT
        );
        nextPageButton = new ElementButton(
            this,
            223,
            177,
            "next",
            0,
            0,
            22,
            0,
            44,
            0,
            22,
            10,
            66,
            10,
            Textures.Gui.Elements.ARROW_RIGHT
        );
        searchTextField = new ElementSearchField(this, 64, 205, "searchField", 128, 20);
        searchTextField.setPadding(6, 3, 0, 3);
        searchTextField.borderColor = new GuiColor(160, 160, 160).getColor();
        searchTextField.backgroundColor = new GuiColor(0, 0, 0).getColor();

        addElement(prevPageButton);
        addElement(nextPageButton);
        addElement(searchTextField);
    }

    @Override
    protected void drawGuiContainerForegroundLayer(int x, int y) {
        super.drawGuiContainerForegroundLayer(x, y);
        int pageOffset = ((ContainerAlchenomicon) this.inventorySlots).getPageOffset();

        if (this.inventorySlots.getSlot(0).getHasStack()) {
            fontRendererObj.drawString(
                (pageOffset * 2 + 1) + "", 64, 178, new GuiColor(50, 50, 50).getColor()
            );
        } else {
            if (((ContainerAlchenomicon) this.inventorySlots)
                    .getKnownTransmutationsCount()
                == 0) {
                fontRendererObj.drawSplitString(
                    StatCollector.translateToLocal(Messages.Gui.NO_KNOWN_TRANSMUTATIONS),
                    142,
                    20,
                    100,
                    new GuiColor(50, 50, 50).getColor()
                );
            }
        }

        if (this.inventorySlots.getSlot(40).getHasStack()) {
            fontRendererObj.drawString(
                (pageOffset * 2 + 2) + "", 186, 178, new GuiColor(50, 50, 50).getColor()
            );
        }
    }

    @Override
    protected void drawGuiContainerBackgroundLayer(float partialTicks, int x, int y) {
        mouseX = x - guiLeft;
        mouseY = y - guiTop;
        GL11.glColor4f(1.0F, 1.0F, 1.0F, 1.0F);
        bindTexture(texture);
        drawSizedTexturedModalRect(guiLeft, guiTop, 0, 0, xSize, ySize, 256f, 256f);
        GL11.glPushMatrix();
        GL11.glTranslatef(guiLeft, guiTop, 0.0F);
        drawElements(partialTicks, false);
        drawTabs(partialTicks, false);
        GL11.glPopMatrix();
    }

    @Override
    protected void updateElementInformation() {
        if (((ContainerAlchenomicon) this.inventorySlots).getPageOffset() == 0) {
            prevPageButton.setDisabled();
        } else if (!prevPageButton.isEnabled()) {
            prevPageButton.setEnabled(true);
        }

        if (((ContainerAlchenomicon) this.inventorySlots).getPageOffset()
            == ((ContainerAlchenomicon) this.inventorySlots).getMaxPageOffset()) {
            nextPageButton.setDisabled();
        } else if (!nextPageButton.isEnabled()) {
            nextPageButton.setEnabled(true);
        }
    }

    @Override
    protected void
    handleMouseClick(Slot slot, int p_146984_2_, int p_146984_3_, int p_146984_4_) {
        // NOOP
    }

    @Override
    public void handleElementButtonClick(String buttonName, int mouseButton) {
        PacketHandler.INSTANCE.sendToServer(
            new MessageGuiElementClicked(buttonName, mouseButton)
        );
    }
}