/
ItemListOverlay.java
372 lines (306 loc) · 10.4 KB
/
ItemListOverlay.java
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package mezz.jei.gui;
import com.google.common.collect.ImmutableList;
import javax.annotation.Nonnull;
import javax.annotation.Nullable;
import java.awt.Color;
import java.util.ArrayList;
import net.minecraft.client.Minecraft;
import net.minecraft.client.gui.FontRenderer;
import net.minecraft.client.gui.GuiButton;
import net.minecraft.client.gui.GuiTextField;
import net.minecraft.client.gui.inventory.GuiContainer;
import net.minecraft.client.renderer.GlStateManager;
import net.minecraft.item.ItemStack;
import net.minecraft.util.StatCollector;
import net.minecraftforge.fml.client.config.GuiButtonExt;
import org.lwjgl.input.Keyboard;
import mezz.jei.ItemFilter;
import mezz.jei.gui.ingredients.GuiIngredient;
import mezz.jei.gui.ingredients.GuiItemStackGroup;
import mezz.jei.input.IKeyable;
import mezz.jei.input.IMouseHandler;
import mezz.jei.input.IShowsRecipeFocuses;
import mezz.jei.util.ItemStackElement;
import mezz.jei.util.MathUtil;
public class ItemListOverlay implements IShowsRecipeFocuses, IMouseHandler, IKeyable {
private static final int borderPadding = 1;
private static final int searchHeight = 16;
private static final int itemStackPadding = 1;
private static final int itemStackWidth = GuiItemStackGroup.getWidth(itemStackPadding);
private static final int itemStackHeight = GuiItemStackGroup.getHeight(itemStackPadding);
private static final int maxSearchLength = 32;
private static int pageNum = 0;
private final ItemFilter itemFilter;
private int buttonHeight;
private final ArrayList<GuiIngredient<ItemStack>> guiItemStacks = new ArrayList<>();
private GuiButton nextButton;
private GuiButton backButton;
private GuiTextField searchField;
private int pageCount;
private String pageNumDisplayString;
private int pageNumDisplayX;
private int pageNumDisplayY;
private GuiIngredient<ItemStack> hovered = null;
// properties of the gui we're beside
private int guiLeft;
private int guiXSize;
private int screenWidth;
private int screenHeight;
private boolean open = false;
private boolean enabled = true;
public ItemListOverlay(ItemFilter itemFilter) {
this.itemFilter = itemFilter;
}
public void initGui(@Nonnull GuiContainer guiContainer) {
this.guiLeft = guiContainer.guiLeft;
this.guiXSize = guiContainer.xSize;
this.screenWidth = guiContainer.width;
this.screenHeight = guiContainer.height;
String next = StatCollector.translateToLocal("jei.button.next");
String back = StatCollector.translateToLocal("jei.button.back");
FontRenderer fontRenderer = Minecraft.getMinecraft().fontRendererObj;
final int nextButtonWidth = 10 + fontRenderer.getStringWidth(next);
final int backButtonWidth = 10 + fontRenderer.getStringWidth(back);
buttonHeight = 5 + fontRenderer.FONT_HEIGHT;
int columns = getColumns();
int xSize = columns * itemStackWidth + (2 * itemStackPadding);
int xEmptySpace = screenWidth - guiLeft - guiXSize - xSize;
int leftEdge = guiLeft + guiXSize + (xEmptySpace / 2);
int rightEdge = createItemButtons(leftEdge);
nextButton = new GuiButtonExt(0, rightEdge - nextButtonWidth, 0, nextButtonWidth, buttonHeight, next);
backButton = new GuiButtonExt(1, leftEdge, 0, backButtonWidth, buttonHeight, back);
searchField = new GuiTextField(0, fontRenderer, leftEdge, screenHeight - searchHeight - (2 * borderPadding), rightEdge - leftEdge, searchHeight);
searchField.setMaxStringLength(maxSearchLength);
setKeyboardFocus(false);
searchField.setText(itemFilter.getFilterText());
updateLayout();
}
// creates buttons and returns the x value of the right edge of the rightmost button
private int createItemButtons(int xStart) {
guiItemStacks.clear();
final int yStart = buttonHeight + (2 * borderPadding);
int x = xStart;
int y = yStart;
int maxX = 0;
while (y + itemStackHeight + borderPadding <= screenHeight - searchHeight) {
if (x > maxX) {
maxX = x;
}
guiItemStacks.add(GuiItemStackGroup.createGuiItemStack(false, x, y, itemStackPadding));
x += itemStackWidth;
if (x + itemStackWidth + borderPadding > screenWidth) {
x = xStart;
y += itemStackHeight;
}
}
return maxX + itemStackWidth;
}
private void updateLayout() {
updatePageCount();
if (pageNum >= getPageCount()) {
pageNum = 0;
}
int i = pageNum * getCountPerPage();
ImmutableList<ItemStackElement> itemList = itemFilter.getItemList();
for (GuiIngredient<ItemStack> itemButton : guiItemStacks) {
if (i >= itemList.size()) {
itemButton.clear();
} else {
ItemStack stack = itemList.get(i).getItemStack();
itemButton.set(stack, new Focus(), Focus.Mode.NONE);
}
i++;
}
FontRenderer fontRendererObj = Minecraft.getMinecraft().fontRendererObj;
pageNumDisplayString = (getPageNum() + 1) + "/" + getPageCount();
int pageDisplayWidth = fontRendererObj.getStringWidth(pageNumDisplayString);
pageNumDisplayX = ((backButton.xPosition + backButton.width) + nextButton.xPosition) / 2 - (pageDisplayWidth / 2);
pageNumDisplayY = backButton.yPosition + Math.round((backButton.height - fontRendererObj.FONT_HEIGHT) / 2.0f);
if (itemList.size() == 0) {
searchField.setTextColor(Color.red.getRGB());
searchField.setMaxStringLength(searchField.getText().length());
} else {
searchField.setTextColor(Color.white.getRGB());
searchField.setMaxStringLength(maxSearchLength);
}
}
private void nextPage() {
if (pageNum == getPageCount() - 1) {
setPageNum(0);
} else {
setPageNum(pageNum + 1);
}
}
private void previousPage() {
if (pageNum == 0) {
setPageNum(getPageCount() - 1);
} else {
setPageNum(pageNum - 1);
}
}
public void drawScreen(@Nonnull Minecraft minecraft, int mouseX, int mouseY) {
if (!isOpen()) {
return;
}
GlStateManager.disableLighting();
minecraft.fontRendererObj.drawString(pageNumDisplayString, pageNumDisplayX, pageNumDisplayY, Color.white.getRGB(), true);
searchField.drawTextBox();
nextButton.drawButton(minecraft, mouseX, mouseY);
backButton.drawButton(minecraft, mouseX, mouseY);
for (GuiIngredient<ItemStack> guiItemStack : guiItemStacks) {
if (hovered == null && guiItemStack.isMouseOver(mouseX, mouseY)) {
hovered = guiItemStack;
} else {
guiItemStack.draw(minecraft);
}
}
}
public void drawHovered(@Nonnull Minecraft minecraft, int mouseX, int mouseY) {
if (hovered != null) {
hovered.drawHovered(minecraft, mouseX, mouseY);
hovered = null;
}
}
public void handleTick() {
searchField.updateCursorCounter();
}
@Override
public boolean isMouseOver(int mouseX, int mouseY) {
return isOpen() && (mouseX >= guiLeft + guiXSize);
}
@Override
@Nullable
public Focus getFocusUnderMouse(int mouseX, int mouseY) {
if (!isMouseOver(mouseX, mouseY)) {
return null;
}
for (GuiIngredient<ItemStack> guiItemStack : guiItemStacks) {
if (guiItemStack.isMouseOver(mouseX, mouseY)) {
setKeyboardFocus(false);
return new Focus(guiItemStack.get());
}
}
return null;
}
@Override
public boolean handleMouseClicked(int mouseX, int mouseY, int mouseButton) {
if (!isMouseOver(mouseX, mouseY)) {
setKeyboardFocus(false);
return false;
}
boolean buttonClicked = handleMouseClickedButtons(mouseX, mouseY, mouseButton);
if (buttonClicked) {
setKeyboardFocus(false);
return true;
}
return handleMouseClickedSearch(mouseX, mouseY, mouseButton);
}
@Override
public boolean handleMouseScrolled(int mouseX, int mouseY, int scrollDelta) {
if (!isMouseOver(mouseX, mouseY)) {
return false;
}
if (scrollDelta < 0) {
nextPage();
return true;
} else if (scrollDelta > 0) {
previousPage();
return true;
}
return false;
}
private boolean handleMouseClickedButtons(int mouseX, int mouseY, int mouseButton) {
Minecraft minecraft = Minecraft.getMinecraft();
if (nextButton.mousePressed(minecraft, mouseX, mouseY)) {
nextPage();
return true;
} else if (backButton.mousePressed(minecraft, mouseX, mouseY)) {
previousPage();
return true;
}
return false;
}
private boolean handleMouseClickedSearch(int mouseX, int mouseY, int mouseButton) {
boolean searchClicked = mouseX >= searchField.xPosition && mouseX < searchField.xPosition + searchField.width && mouseY >= searchField.yPosition && mouseY < searchField.yPosition + searchField.height;
setKeyboardFocus(searchClicked);
if (searchClicked) {
if (mouseButton == 1) {
searchField.setText("");
if (itemFilter.setFilterText(searchField.getText())) {
updateLayout();
}
} else {
searchField.mouseClicked(mouseX, mouseY, mouseButton);
}
}
return searchClicked;
}
@Override
public boolean hasKeyboardFocus() {
return searchField.isFocused();
}
@Override
public void setKeyboardFocus(boolean keyboardFocus) {
searchField.setFocused(keyboardFocus);
Keyboard.enableRepeatEvents(keyboardFocus);
}
@Override
public boolean onKeyPressed(int keyCode) {
if (searchField.isFocused()) {
boolean success = searchField.textboxKeyTyped(Keyboard.getEventCharacter(), Keyboard.getEventKey());
if (success && itemFilter.setFilterText(searchField.getText())) {
updateLayout();
}
return true;
}
return false;
}
private int getColumns() {
int xArea = screenWidth - (guiLeft + guiXSize + (2 * borderPadding));
return xArea / itemStackWidth;
}
private int getRows() {
int yArea = screenHeight - (buttonHeight + searchHeight + (4 * borderPadding));
return yArea / itemStackHeight;
}
private int getCountPerPage() {
return getColumns() * getRows();
}
private void updatePageCount() {
int count = itemFilter.size();
pageCount = MathUtil.divideCeil(count, getCountPerPage());
if (pageCount == 0) {
pageCount = 1;
}
}
private int getPageCount() {
return pageCount;
}
private int getPageNum() {
return pageNum;
}
private void setPageNum(int pageNum) {
if (ItemListOverlay.pageNum == pageNum) {
return;
}
ItemListOverlay.pageNum = pageNum;
updateLayout();
}
@Override
public void open() {
open = true;
setKeyboardFocus(false);
}
@Override
public void close() {
open = false;
setKeyboardFocus(false);
}
@Override
public boolean isOpen() {
return open && enabled;
}
public void toggleEnabled() {
enabled = !enabled;
}
}