preview render thing

changelog

@@ -13,6 +13,8 @@
 * The nuclear flash now bypasses radiation resistance, being only affected by blocks and distance
 * Mushroom clouds' initial scale is now based on the total scale instead of all spawning roughly at the same size, causing fireballs to be comically small for huge bombs
 * Removed the old mining drill, combustion generator, old watz core, structure marker, all old large reactor parts and CMB furnace for good
+* Chemical plants will now eject all their outputs within a single tick if possible, increasing the throughput of fast recipes with many outputs, like asphalt
+* Hitting CTRL + ALT when hovering over an item now displays a preview of that item. Useful if you want to get authentic renders for a wiki, or just like staring at things.
 
 ## Fixed
 * Fixed a rare crash caused by radars force-loading chunks conflicting with certain mods' chunk loading changes

src/main/java/com/hbm/inventory/gui/GUIScreenPreview.java

@@ -0,0 +1,110 @@
+package com.hbm.inventory.gui;
+
+import org.lwjgl.input.Mouse;
+import org.lwjgl.opengl.GL11;
+import org.lwjgl.opengl.GL12;
+
+import com.hbm.lib.RefStrings;
+
+import net.minecraft.client.gui.GuiScreen;
+import net.minecraft.client.gui.ScaledResolution;
+import net.minecraft.client.renderer.OpenGlHelper;
+import net.minecraft.client.renderer.RenderHelper;
+import net.minecraft.client.renderer.Tessellator;
+import net.minecraft.item.ItemStack;
+import net.minecraft.util.ResourceLocation;
+
+public class GUIScreenPreview extends GuiScreen {
+
+	protected static final ResourceLocation texture = new ResourceLocation(RefStrings.MODID + ":textures/gui/nei/gui_nei.png");
+	protected ItemStack preview;
+	protected int zoom = 1;
+
+	public GUIScreenPreview(ItemStack stack) {
+		this.preview = stack;
+	}
+
+	public void drawScreen(int mouseX, int mouseY, float f) {
+		
+		if(this.mc.theWorld != null) {
+			this.drawRect(0, 0, this.width, this.height, 0xFFC6C6C6);
+		} else {
+			this.drawBackground(0);
+		}
+		
+		if(!Mouse.isButtonDown(0) && !Mouse.isButtonDown(1) && Mouse.next()) {
+			int scroll = Mouse.getEventDWheel();
+			
+			if(scroll < 0 && this.zoom > 1) this.zoom--;
+			if(scroll > 0 && this.zoom < 15) this.zoom++;
+		}
+		
+		this.drawGuiContainerBackgroundLayer(f, mouseX, mouseY);
+		GL11.glDisable(GL11.GL_LIGHTING);
+		this.drawGuiContainerForegroundLayer(mouseX, mouseY);
+		GL11.glEnable(GL11.GL_LIGHTING);
+	}
+
+	protected void drawGuiContainerBackgroundLayer(float f, int mouseX, int mouseY) {
+		GL11.glPushMatrix();
+		GL11.glColor4f(1.0F, 1.0F, 1.0F, 1.0F);
+		this.mc.getTextureManager().bindTexture(texture);
+		ScaledResolution res = new ScaledResolution(this.mc, this.mc.displayWidth, this.mc.displayHeight);
+		GL11.glScaled(zoom, zoom, zoom);
+		this.drawTexturedModalRect(res.getScaledWidth_double() / 2D / zoom - 9D, res.getScaledHeight_double() / 2D / zoom - 9D, 5, 87, 18, 18);
+		GL11.glPopMatrix();
+
+		this.fontRendererObj.drawString("Zoom: " + zoom, 2, this.height - 20, 0xff0000);
+		this.fontRendererObj.drawString("Windows Scale: " + res.getScaleFactor(), 2, this.height - 10, 0xff0000);
+	}
+
+	public void drawTexturedModalRect(double x, double y, int sourceX, int sourceY, int sizeX, int sizeY) {
+		double f = 0.00390625D;
+		double f1 = 0.00390625D;
+		Tessellator tessellator = Tessellator.instance;
+		tessellator.startDrawingQuads();
+		tessellator.addVertexWithUV((double) (x + 0), (double) (y + sizeY), (double) this.zLevel, (double) ((float) (sourceX + 0) * f), (double) ((float) (sourceY + sizeY) * f1));
+		tessellator.addVertexWithUV((double) (x + sizeX), (double) (y + sizeY), (double) this.zLevel, (double) ((float) (sourceX + sizeX) * f), (double) ((float) (sourceY + sizeY) * f1));
+		tessellator.addVertexWithUV((double) (x + sizeX), (double) (y + 0), (double) this.zLevel, (double) ((float) (sourceX + sizeX) * f), (double) ((float) (sourceY + 0) * f1));
+		tessellator.addVertexWithUV((double) (x + 0), (double) (y + 0), (double) this.zLevel, (double) ((float) (sourceX + 0) * f), (double) ((float) (sourceY + 0) * f1));
+		tessellator.draw();
+	}
+
+	protected void drawGuiContainerForegroundLayer(int mouseX, int mouseY) {
+		
+		if(preview == null) return;
+		
+		GL11.glPushMatrix();
+		RenderHelper.enableGUIStandardItemLighting();
+		OpenGlHelper.setLightmapTextureCoords(OpenGlHelper.lightmapTexUnit, 240F, 240F);
+		GL11.glColor4f(1.0F, 1.0F, 1.0F, 1.0F);
+
+		GL11.glEnable(GL12.GL_RESCALE_NORMAL);
+		GL11.glEnable(GL11.GL_LIGHTING);
+		GL11.glEnable(GL11.GL_DEPTH_TEST);
+		
+		GL11.glScaled(zoom, zoom, zoom);
+		
+		ScaledResolution res = new ScaledResolution(this.mc, this.mc.displayWidth, this.mc.displayHeight);
+		GL11.glTranslated(res.getScaledWidth_double() / 2D / zoom, res.getScaledHeight_double() / 2D / zoom, -200);
+
+		this.zLevel = 200.0F;
+		itemRender.zLevel = 200.0F;
+
+		GL11.glEnable(GL11.GL_DEPTH_TEST);
+		itemRender.renderItemAndEffectIntoGUI(this.fontRendererObj, this.mc.getTextureManager(), preview, -8, -8);
+		itemRender.renderItemOverlayIntoGUI(this.fontRendererObj, this.mc.getTextureManager(), preview, -8, -8, null);
+
+		itemRender.zLevel = 0.0F;
+		this.zLevel = 0.0F;
+		
+		GL11.glPopMatrix();
+	}
+
+	@Override
+	protected void keyTyped(char c, int key) {
+		if(key == 1 || key == this.mc.gameSettings.keyBindInventory.getKeyCode()) {
+			this.mc.thePlayer.closeScreen();
+		}
+	}
+}

src/main/java/com/hbm/main/ModEventHandlerClient.java

@@ -34,6 +34,7 @@ import com.hbm.interfaces.IItemHUD;
 import com.hbm.interfaces.Spaghetti;
 import com.hbm.inventory.RecipesCommon.ComparableStack;
 import com.hbm.inventory.gui.GUIArmorTable;
+import com.hbm.inventory.gui.GUIScreenPreview;
 import com.hbm.items.ISyncButtons;
 import com.hbm.items.ModItems;
 import com.hbm.items.armor.ArmorFSB;
@@ -931,40 +932,28 @@ public class ModEventHandlerClient {
 			}
 		}
 		
-		if(mc.currentScreen instanceof GuiContainer && Keyboard.isKeyDown(Keyboard.KEY_F1)) {
+		if(Keyboard.isKeyDown(Keyboard.KEY_F1)) {
-
-			ScaledResolution scaledresolution = new ScaledResolution(mc, mc.displayWidth, mc.displayHeight);
-			int width = scaledresolution.getScaledWidth();
-			int height = scaledresolution.getScaledHeight();
-			int mouseX = Mouse.getX() * width / mc.displayWidth;
-			int mouseY = height - Mouse.getY() * height / mc.displayHeight - 1;
 			
-			GuiContainer container = (GuiContainer) mc.currentScreen;
+			ItemStack stack = getMouseOverStack();
-			
+			if(stack != null) {
-			for(Object o : container.inventorySlots.inventorySlots) {
+				ComparableStack comp = new ComparableStack(stack).makeSingular();
-				Slot slot = (Slot) o;
+				CanneryBase cannery = Jars.canneries.get(comp);
-				
+				if(cannery != null) {
-				if(slot.getHasStack()) {
+					FMLCommonHandler.instance().showGuiScreen(new GuiWorldInAJar(cannery.createScript(), cannery.getName(), cannery.getIcon(), cannery.seeAlso()));
-					try {
-						Method isMouseOverSlot = ReflectionHelper.findMethod(GuiContainer.class, container, new String[] {"func_146981_a", "isMouseOverSlot"}, Slot.class, int.class, int.class);
-						
-						if((boolean) isMouseOverSlot.invoke(container, slot, mouseX, mouseY)) {
-							
-							ComparableStack comp = new ComparableStack(slot.getStack()).makeSingular();
-							CanneryBase cannery = Jars.canneries.get(comp);
-							
-							if(cannery != null) {
-								FMLCommonHandler.instance().showGuiScreen(new GuiWorldInAJar(cannery.createScript(), cannery.getName(), cannery.getIcon(), cannery.seeAlso()));
-							}
-							
-							break;
-						}
-						
-					} catch(Exception ex) { }
 				}
 			}
 		}
 		
+		if(Keyboard.isKeyDown(Keyboard.KEY_LCONTROL) && Keyboard.isKeyDown(Keyboard.KEY_LMENU)) {
+			
+			ItemStack stack = getMouseOverStack();
+			if(stack != null) {
+				stack = stack.copy();
+				stack.stackSize = 1;
+				FMLCommonHandler.instance().showGuiScreen(new GUIScreenPreview(stack));
+			}
+		}
+		
 		if(event.phase == Phase.START) {
 			EntityPlayer player = mc.thePlayer;
 			
@@ -985,6 +974,38 @@ public class ModEventHandlerClient {
 		}
 	}
 	
+	public static ItemStack getMouseOverStack() {
+		
+		Minecraft mc = Minecraft.getMinecraft();
+		if(mc.currentScreen instanceof GuiContainer) {
+
+			ScaledResolution scaledresolution = new ScaledResolution(mc, mc.displayWidth, mc.displayHeight);
+			int width = scaledresolution.getScaledWidth();
+			int height = scaledresolution.getScaledHeight();
+			int mouseX = Mouse.getX() * width / mc.displayWidth;
+			int mouseY = height - Mouse.getY() * height / mc.displayHeight - 1;
+			
+			GuiContainer container = (GuiContainer) mc.currentScreen;
+			
+			for(Object o : container.inventorySlots.inventorySlots) {
+				Slot slot = (Slot) o;
+				
+				if(slot.getHasStack()) {
+					try {
+						Method isMouseOverSlot = ReflectionHelper.findMethod(GuiContainer.class, container, new String[] {"func_146981_a", "isMouseOverSlot"}, Slot.class, int.class, int.class);
+						
+						if((boolean) isMouseOverSlot.invoke(container, slot, mouseX, mouseY)) {
+							return slot.getStack();
+						}
+						
+					} catch(Exception ex) { }
+				}
+			}
+		}
+		
+		return null;
+	}
+	
 	@SideOnly(Side.CLIENT)
 	@SubscribeEvent(priority = EventPriority.LOWEST)
 	public void onClientTickLast(ClientTickEvent event) {