diff options
Diffstat (limited to 'src/main/java/gregtech/api/gui/GT_GUIDialogSelectItem.java')
| -rw-r--r-- | src/main/java/gregtech/api/gui/GT_GUIDialogSelectItem.java | 217 |
1 files changed, 217 insertions, 0 deletions
diff --git a/src/main/java/gregtech/api/gui/GT_GUIDialogSelectItem.java b/src/main/java/gregtech/api/gui/GT_GUIDialogSelectItem.java new file mode 100644 index 0000000000..2c3f77cf06 --- /dev/null +++ b/src/main/java/gregtech/api/gui/GT_GUIDialogSelectItem.java @@ -0,0 +1,217 @@ +package gregtech.api.gui; + +import gregtech.api.gui.widgets.GT_GuiFakeItemButton; +import gregtech.api.gui.widgets.GT_GuiIcon; +import gregtech.api.gui.widgets.GT_GuiIconButton; +import gregtech.api.util.GT_Utility; +import net.minecraft.client.gui.GuiButton; +import net.minecraft.client.gui.GuiScreen; +import net.minecraft.item.ItemStack; +import net.minecraft.util.StatCollector; + +import java.util.ArrayList; +import java.util.List; +import java.util.function.Consumer; + +public class GT_GUIDialogSelectItem extends GT_GUIScreen { + public static final int UNSELECTED = -1; + private static final int cols = 9; + private static final int rows = 3; + private final GuiScreen parent; + private final Consumer<ItemStack> selectedCallback; + // passed in stack + private final List<ItemStack> stacks; + // all slots not including btnCurrent + private final List<GT_GuiFakeItemButton> slots = new ArrayList<>(); + // the currently selected slot content + private final GT_GuiFakeItemButton btnCurrent = new GT_GuiFakeItemButton(this, 8, 25, GT_GuiIcon.SLOT_DARKGRAY).setMimicSlot(true); + private final boolean noDeselect; + private int selected; + private int scroll = 0; + private GT_GuiIconButton btnUp; + private GT_GuiIconButton btnDown; + + + public GT_GUIDialogSelectItem(String header, ItemStack headerItem, GuiScreen parent, Consumer<ItemStack> selectedCallback, List<ItemStack> stacks) { + this(header, headerItem, parent, selectedCallback, stacks, UNSELECTED); + } + + public GT_GUIDialogSelectItem(String header, ItemStack headerItem, GuiScreen parent, Consumer<ItemStack> selectedCallback, List<ItemStack> stacks, int selected) { + this(header, headerItem, parent, selectedCallback, stacks, selected, false); + } + + /** + * Open a dialog to select an item from given list. Given callback may be called zero or more times depending on user action. + * @param header Header text + * @param headerItem ItemStack to use as Dialog icon + * @param parent open which GUIScreen when this dialog is closed. use null if it has no parent. + * @param selectedCallback callback upon selected + * @param stacks list to choose from + * @param selected preselected item. Use {@link #UNSELECTED} for unselected. Invalid selected will be clamped to 0 or highest index + * @param noDeselect true if player cannot deselect, false otherwise. If this is set to true, selectedCallback is guaranteed to be called with a nonnull stack + */ + public GT_GUIDialogSelectItem(String header, ItemStack headerItem, GuiScreen parent, Consumer<ItemStack> selectedCallback, List<ItemStack> stacks, int selected, boolean noDeselect) { + super(176, 107, header); + this.noDeselect = noDeselect; + if (headerItem != null) + this.headerIcon.setItem(headerItem); + this.parent = parent; + this.selectedCallback = selectedCallback; + this.stacks = stacks; + + if (stacks.size() > rows * cols) { + btnUp = new GT_GuiIconButton(this, 0, 134, 25, GT_GuiIcon.GREEN_ARROW_UP); + btnDown = new GT_GuiIconButton(this, 1, 152, 25, GT_GuiIcon.GREEN_ARROW_DOWN); + } + + for (int i = 0; i < rows; i++) { + for (int j = 0; j < cols; j++) { + slots.add(new GT_GuiFakeItemButton(this, 8 + 18 * j, 44 + 18 * i, GT_GuiIcon.SLOT_GRAY).setMimicSlot(true)); + } + } + + setSelected(noDeselect ? Math.max(0, selected) : selected); + ensureSelectedDisplayed(); + } + + @Override + protected void onInitGui(int guiLeft, int guiTop, int gui_width, int gui_height) { + btnCurrent.setX(8 + 2 + fontRendererObj.getStringWidth(StatCollector.translateToLocal("GT5U.gui.select.current"))); + } + + @Override + public void closeScreen() { + selectedCallback.accept(getCandidate(getSelected())); + mc.displayGuiScreen(parent); + if (parent == null) + mc.setIngameFocus(); + } + + @Override + public void buttonClicked(GuiButton button) { + switch (button.id) { + case 0: + setScroll(scroll - 1); + return; + case 1: + setScroll(scroll + 1); + return; + } + super.buttonClicked(button); + } + + @Override + public void drawExtras(int mouseX, int mouseY, float parTicks) { + int y = 25 + (18 - getFontRenderer().FONT_HEIGHT) / 2; + getFontRenderer().drawString(StatCollector.translateToLocal("GT5U.gui.select.current"), 8, y, 0xff555555); + super.drawExtras(mouseX, mouseY, parTicks); + } + + @Override + public void mouseClicked(int x, int y, int button) { + int mx = x - guiLeft, my = y - guiTop; + if (button == 0) { + if (btnCurrent.getBounds().contains(mx, my)) { + ensureSelectedDisplayed(); + return; + } + + for (int i = 0, slotsSize = slots.size(); i < slotsSize; i++) { + GT_GuiFakeItemButton slot = slots.get(i); + if (slot.getBounds().contains(mx, my)) { + setSelected(slotIndexToListIndex(i)); + return; + } + } + } else if (button == 1 && getSelected() >= 0) { + if (btnCurrent.getBounds().contains(mx, my)) { + setSelected(UNSELECTED); + return; + } + GT_GuiFakeItemButton slot = getSlot(listIndexToSlotIndex(getSelected())); + if (slot != null && slot.getBounds().contains(mx, my)) { + setSelected(UNSELECTED); + } + } + super.mouseClicked(x, y, button); + } + + @Override + public void onMouseWheel(int x, int y, int delta) { + if (delta < 0) + setScroll(scroll + 1); + else if (delta > 0) + setScroll(scroll - 1); + } + + private void fillSlots() { + for (int i = 0, j = scroll * cols; i < slots.size(); i++, j++) { + slots.get(i) + .setItem(getCandidate(j)) + .setBgIcon(j == getSelected() ? GT_GuiIcon.SLOT_DARKGRAY : GT_GuiIcon.SLOT_GRAY); + } + } + + private void ensureSelectedDisplayed() { + if (getSelected() < scroll * cols) { + setScroll(getSelected() / cols); + } else if (getSelected() > (scroll + rows) * cols) { + setScroll((getSelected() - (rows - 1) * cols) / cols); + } else { + // called nonetheless to update button enabled states + setScroll(scroll); + } + } + + private int slotIndexToListIndex(int index) { + int mapped = scroll * cols + index; + return mapped >= stacks.size() ? UNSELECTED : mapped; + } + + private int listIndexToSlotIndex(int index) { + return index - scroll * cols; + } + + public int getSelected() { + return selected; + } + + public void setSelected(int selected) { + if (selected == this.selected) return; + int newSelected = GT_Utility.clamp(selected, UNSELECTED, stacks.size() - 1); + + if (noDeselect && newSelected == UNSELECTED) + return; + + GT_GuiFakeItemButton selectedSlot = getSlot(this.selected); + if (selectedSlot != null) + selectedSlot.setBgIcon(GT_GuiIcon.SLOT_GRAY); + + this.selected = newSelected; + + btnCurrent.setItem(getCandidate(this.selected)); + + selectedSlot = getSlot(this.selected); + if (selectedSlot != null) + selectedSlot.setBgIcon(GT_GuiIcon.SLOT_DARKGRAY); + } + + private void setScroll(int scroll) { + if (stacks.size() > rows * cols) { + int lo = 0; + int hi = (stacks.size() - rows * cols) / cols + 1; + this.scroll = GT_Utility.clamp(scroll, lo, hi); + btnUp.enabled = this.scroll != lo; + btnDown.enabled = this.scroll != hi; + } + fillSlots(); + } + + private ItemStack getCandidate(int listIndex) { + return listIndex < 0 || listIndex >= stacks.size() ? null : stacks.get(listIndex); + } + + private GT_GuiFakeItemButton getSlot(int slotIndex) { + return slotIndex < 0 || slotIndex >= slots.size() ? null : slots.get(slotIndex); + } +} |