Settings entries can be collapsed (GuiList with custom height).

Entries are centered vertically if it fits.

src/main/java/nl/requios/effortlessbuilding/BuildConfig.java

@@ -19,13 +19,13 @@ public class BuildConfig {
         @Comment({"Maximum reach in survival without upgrades",
                  "Reach upgrades are craftable consumables that permanently increase reach.",
                  "Set to 0 to disable Effortless Building until the player has consumed a reach upgrade."})
-        public int maxReachLevel0 = 10;
+        public int maxReachLevel0 = 20;
 
         @Comment("Maximum reach in survival with one upgrade")
-        public int maxReachLevel1 = 20;
+        public int maxReachLevel1 = 50;
 
         @Comment("Maximum reach in survival with two upgrades")
-        public int maxReachLevel2 = 50;
+        public int maxReachLevel2 = 100;
 
         @Comment("Maximum reach in survival with three upgrades")
         public int maxReachLevel3 = 200;

src/main/java/nl/requios/effortlessbuilding/gui/ArraySettingsGui.java

@@ -65,6 +65,8 @@ public class ArraySettingsGui extends GuiCollapsibleScrollEntry {
             textArrayCount.setNumber(a.count);
         }
 
+        setCollapsed(!buttonArrayEnabled.isChecked());
+
         return id;
     }
 
@@ -154,6 +156,9 @@ public class ArraySettingsGui extends GuiCollapsibleScrollEntry {
     @Override
     public void actionPerformed(GuiButton button) {
         super.actionPerformed(button);
+        if (button == buttonArrayEnabled) {
+            setCollapsed(!buttonArrayEnabled.isChecked());
+        }
         arrayNumberFieldList.forEach(numberField -> numberField.actionPerformed(button));
     }
 
@@ -181,6 +186,11 @@ public class ArraySettingsGui extends GuiCollapsibleScrollEntry {
         return "Array";
     }
 
+    @Override
+    protected int getExpandedHeight() {
+        return 80;
+    }
+
     private int getArrayReach() {
         try
         {

src/main/java/nl/requios/effortlessbuilding/gui/GuiCollapsibleScrollEntry.java

@@ -13,6 +13,8 @@ public abstract class GuiCollapsibleScrollEntry implements GuiScrollPane.IScroll
     public GuiScrollPane scrollPane;
     protected FontRenderer fontRenderer;
     protected Minecraft mc;
+
+    protected boolean isCollapsed = true;
     protected int left, right, top, bottom;
 
     public GuiCollapsibleScrollEntry(GuiScrollPane scrollPane) {
@@ -78,7 +80,24 @@ public abstract class GuiCollapsibleScrollEntry implements GuiScrollPane.IScroll
 
     }
 
+    @Override
+    public int getHeight() {
+        return isCollapsed ? getCollapsedHeight() : getExpandedHeight();
+    }
+
+    public void setCollapsed(boolean collapsed) {
+        this.isCollapsed = collapsed;
+    }
+
     protected String getName() {
         return "Collapsible scroll entry";
     }
+
+    protected int getCollapsedHeight() {
+        return 24;
+    }
+
+    protected int getExpandedHeight() {
+        return 100;
+    }
 }

src/main/java/nl/requios/effortlessbuilding/gui/GuiScrollPane.java

@@ -1,5 +1,6 @@
 package nl.requios.effortlessbuilding.gui;
 
+import net.minecraft.client.Minecraft;
 import net.minecraft.client.gui.FontRenderer;
 import net.minecraft.client.gui.GuiButton;
 import net.minecraft.client.gui.GuiListExtended;
@@ -11,6 +12,7 @@ import net.minecraft.client.renderer.vertex.DefaultVertexFormats;
 import net.minecraft.util.math.MathHelper;
 import net.minecraftforge.fml.relauncher.Side;
 import net.minecraftforge.fml.relauncher.SideOnly;
+import org.lwjgl.input.Mouse;
 
 import java.io.IOException;
 import java.util.ArrayList;
@@ -41,18 +43,18 @@ public class GuiScrollPane extends GuiListExtended {
         return listEntries.size();
     }
 
-    @Override
-    protected int getContentHeight() {
-        //TODO add every entry height
-        return this.getSize() * this.slotHeight + this.headerPadding;
-    }
-
     @Override
     protected int getScrollBarX() {
         //return width / 2 + 140 + 10;
         return width - 15;
     }
 
+    @Override
+    public int getListWidth() {
+        return 280;
+    }
+
+    //Removed background
     @Override
     public void drawScreen(int mouseXIn, int mouseYIn, float partialTicks)
     {
@@ -60,72 +62,69 @@ public class GuiScrollPane extends GuiListExtended {
         {
             this.mouseX = mouseXIn;
             this.mouseY = mouseYIn;
-            int i = this.getScrollBarX();
+            int scrollBarLeft = this.getScrollBarX();
-            int j = i + 6;
+            int scrollBarRight = scrollBarLeft + 6;
             this.bindAmountScrolled();
             GlStateManager.disableLighting();
             GlStateManager.disableFog();
 
-            //Own code: clipping
-
-
-
             Tessellator tessellator = Tessellator.getInstance();
             BufferBuilder bufferbuilder = tessellator.getBuffer();
-            int k = this.left + this.width / 2 - this.getListWidth() / 2 + 2;
+            int insideLeft = this.left + this.width / 2 - this.getListWidth() / 2 + 2;
-            int l = this.top + 4 - (int)this.amountScrolled;
+            int insideTop = this.top + 4 - (int)this.amountScrolled;
 
             if (this.hasListHeader)
             {
-                this.drawListHeader(k, l, tessellator);
+                this.drawListHeader(insideLeft, insideTop, tessellator);
             }
 
             //All entries
-            this.drawSelectionBox(k, l, mouseXIn, mouseYIn, partialTicks);
+            this.drawSelectionBox(insideLeft, insideTop, mouseXIn, mouseYIn, partialTicks);
             GlStateManager.disableDepth();
             //Dirt overlays on top and bottom
-            this.overlayBackground(0, this.top, 255, 255);
+//            this.overlayBackground(0, this.top, 255, 255);
-            this.overlayBackground(this.bottom, this.height, 255, 255);
+//            this.overlayBackground(this.bottom, this.height, 255, 255);
             GlStateManager.enableBlend();
             GlStateManager.tryBlendFuncSeparate(GlStateManager.SourceFactor.SRC_ALPHA, GlStateManager.DestFactor.ONE_MINUS_SRC_ALPHA, GlStateManager.SourceFactor.ZERO, GlStateManager.DestFactor.ONE);
             GlStateManager.disableAlpha();
             GlStateManager.shadeModel(7425);
             GlStateManager.disableTexture2D();
-            //top fade
+//            //top fade
-            bufferbuilder.begin(7, DefaultVertexFormats.POSITION_TEX_COLOR);
+//            bufferbuilder.begin(7, DefaultVertexFormats.POSITION_TEX_COLOR);
-            bufferbuilder.pos((double)this.left, (double)(this.top + 5), 0.0D).tex(0.0D, 1.0D).color(100, 100, 100, 0).endVertex();
+//            bufferbuilder.pos((double)this.left, (double)(this.top + 5), 0.0D).tex(0.0D, 1.0D).color(100, 100, 100, 0).endVertex();
-            bufferbuilder.pos((double)this.right, (double)(this.top + 5), 0.0D).tex(1.0D, 1.0D).color(100, 100, 100, 0).endVertex();
+//            bufferbuilder.pos((double)this.right, (double)(this.top + 5), 0.0D).tex(1.0D, 1.0D).color(100, 100, 100, 0).endVertex();
-            bufferbuilder.pos((double)this.right, (double)this.top, 0.0D).tex(1.0D, 0.0D).color(100, 100, 100, 100).endVertex();
+//            bufferbuilder.pos((double)this.right, (double)this.top, 0.0D).tex(1.0D, 0.0D).color(100, 100, 100, 100).endVertex();
-            bufferbuilder.pos((double)this.left, (double)this.top, 0.0D).tex(0.0D, 0.0D).color(100, 100, 100, 100).endVertex();
+//            bufferbuilder.pos((double)this.left, (double)this.top, 0.0D).tex(0.0D, 0.0D).color(100, 100, 100, 100).endVertex();
-            tessellator.draw();
+//            tessellator.draw();
-            //top line
+//            //top line
-            bufferbuilder.begin(7, DefaultVertexFormats.POSITION_TEX_COLOR);
+//            bufferbuilder.begin(7, DefaultVertexFormats.POSITION_TEX_COLOR);
-            bufferbuilder.pos((double)this.left, (double)this.top, 0.0D).tex(0.0D, 1.0D).color(20, 20, 20, 255).endVertex();
+//            bufferbuilder.pos((double)this.left, (double)this.top, 0.0D).tex(0.0D, 1.0D).color(20, 20, 20, 255).endVertex();
-            bufferbuilder.pos((double)this.right, (double)this.top, 0.0D).tex(1.0D, 1.0D).color(20, 20, 20, 255).endVertex();
+//            bufferbuilder.pos((double)this.right, (double)this.top, 0.0D).tex(1.0D, 1.0D).color(20, 20, 20, 255).endVertex();
-            bufferbuilder.pos((double)this.right, (double)(this.top - 1), 0.0D).tex(1.0D, 0.0D).color(20, 20, 20, 255).endVertex();
+//            bufferbuilder.pos((double)this.right, (double)(this.top - 1), 0.0D).tex(1.0D, 0.0D).color(20, 20, 20, 255).endVertex();
-            bufferbuilder.pos((double)this.left, (double)(this.top - 1), 0.0D).tex(0.0D, 0.0D).color(20, 20, 20, 255).endVertex();
+//            bufferbuilder.pos((double)this.left, (double)(this.top - 1), 0.0D).tex(0.0D, 0.0D).color(20, 20, 20, 255).endVertex();
-            tessellator.draw();
+//            tessellator.draw();
-            //bottom fade
+//            //bottom fade
-            bufferbuilder.begin(7, DefaultVertexFormats.POSITION_TEX_COLOR);
+//            bufferbuilder.begin(7, DefaultVertexFormats.POSITION_TEX_COLOR);
-            bufferbuilder.pos((double)this.left, (double)this.bottom, 0.0D).tex(0.0D, 1.0D).color(10, 10, 10, 100).endVertex();
+//            bufferbuilder.pos((double)this.left, (double)this.bottom, 0.0D).tex(0.0D, 1.0D).color(10, 10, 10, 100).endVertex();
-            bufferbuilder.pos((double)this.right, (double)this.bottom, 0.0D).tex(1.0D, 1.0D).color(10, 10, 10, 100).endVertex();
+//            bufferbuilder.pos((double)this.right, (double)this.bottom, 0.0D).tex(1.0D, 1.0D).color(10, 10, 10, 100).endVertex();
-            bufferbuilder.pos((double)this.right, (double)(this.bottom - 5), 0.0D).tex(1.0D, 0.0D).color(10, 10, 10, 0).endVertex();
+//            bufferbuilder.pos((double)this.right, (double)(this.bottom - 5), 0.0D).tex(1.0D, 0.0D).color(10, 10, 10, 0).endVertex();
-            bufferbuilder.pos((double)this.left, (double)(this.bottom - 5), 0.0D).tex(0.0D, 0.0D).color(10, 10, 10, 0).endVertex();
+//            bufferbuilder.pos((double)this.left, (double)(this.bottom - 5), 0.0D).tex(0.0D, 0.0D).color(10, 10, 10, 0).endVertex();
-            tessellator.draw();
+//            tessellator.draw();
-            //bottom line
+//            //bottom line
-            bufferbuilder.begin(7, DefaultVertexFormats.POSITION_TEX_COLOR);
+//            bufferbuilder.begin(7, DefaultVertexFormats.POSITION_TEX_COLOR);
-            bufferbuilder.pos((double)this.left, (double)(this.bottom + 1), 0.0D).tex(0.0D, 1.0D).color(20, 20, 20, 255).endVertex();
+//            bufferbuilder.pos((double)this.left, (double)(this.bottom + 1), 0.0D).tex(0.0D, 1.0D).color(20, 20, 20, 255).endVertex();
-            bufferbuilder.pos((double)this.right, (double)(this.bottom + 1), 0.0D).tex(1.0D, 1.0D).color(20, 20, 20, 255).endVertex();
+//            bufferbuilder.pos((double)this.right, (double)(this.bottom + 1), 0.0D).tex(1.0D, 1.0D).color(20, 20, 20, 255).endVertex();
-            bufferbuilder.pos((double)this.right, (double)this.bottom, 0.0D).tex(1.0D, 0.0D).color(20, 20, 20, 255).endVertex();
+//            bufferbuilder.pos((double)this.right, (double)this.bottom, 0.0D).tex(1.0D, 0.0D).color(20, 20, 20, 255).endVertex();
-            bufferbuilder.pos((double)this.left, (double)this.bottom, 0.0D).tex(0.0D, 0.0D).color(20, 20, 20, 255).endVertex();
+//            bufferbuilder.pos((double)this.left, (double)this.bottom, 0.0D).tex(0.0D, 0.0D).color(20, 20, 20, 255).endVertex();
-            tessellator.draw();
+//            tessellator.draw();
-            int j1 = this.getMaxScroll();
 
-            if (j1 > 0)
+            //Draw scrollbar
+            int maxScroll = this.getMaxScroll();
+            if (maxScroll > 0)
             {
                 int k1 = (this.bottom - this.top) * (this.bottom - this.top) / this.getContentHeight();
                 k1 = MathHelper.clamp(k1, 32, this.bottom - this.top - 8);
-                int l1 = (int)this.amountScrolled * (this.bottom - this.top - k1) / j1 + this.top;
+                int l1 = (int)this.amountScrolled * (this.bottom - this.top - k1) / maxScroll + this.top;
 
                 if (l1 < this.top)
                 {
@@ -133,22 +132,22 @@ public class GuiScrollPane extends GuiListExtended {
                 }
 
                 bufferbuilder.begin(7, DefaultVertexFormats.POSITION_TEX_COLOR);
-                bufferbuilder.pos((double)i, (double)this.bottom, 0.0D).tex(0.0D, 1.0D).color(0, 0, 0, 255).endVertex();
+                bufferbuilder.pos((double)scrollBarLeft, (double)this.bottom, 0.0D).tex(0.0D, 1.0D).color(0, 0, 0, 255).endVertex();
-                bufferbuilder.pos((double)j, (double)this.bottom, 0.0D).tex(1.0D, 1.0D).color(0, 0, 0, 255).endVertex();
+                bufferbuilder.pos((double)scrollBarRight, (double)this.bottom, 0.0D).tex(1.0D, 1.0D).color(0, 0, 0, 255).endVertex();
-                bufferbuilder.pos((double)j, (double)this.top, 0.0D).tex(1.0D, 0.0D).color(0, 0, 0, 255).endVertex();
+                bufferbuilder.pos((double)scrollBarRight, (double)this.top, 0.0D).tex(1.0D, 0.0D).color(0, 0, 0, 255).endVertex();
-                bufferbuilder.pos((double)i, (double)this.top, 0.0D).tex(0.0D, 0.0D).color(0, 0, 0, 255).endVertex();
+                bufferbuilder.pos((double)scrollBarLeft, (double)this.top, 0.0D).tex(0.0D, 0.0D).color(0, 0, 0, 255).endVertex();
                 tessellator.draw();
                 bufferbuilder.begin(7, DefaultVertexFormats.POSITION_TEX_COLOR);
-                bufferbuilder.pos((double)i, (double)(l1 + k1), 0.0D).tex(0.0D, 1.0D).color(128, 128, 128, 255).endVertex();
+                bufferbuilder.pos((double)scrollBarLeft, (double)(l1 + k1), 0.0D).tex(0.0D, 1.0D).color(128, 128, 128, 255).endVertex();
-                bufferbuilder.pos((double)j, (double)(l1 + k1), 0.0D).tex(1.0D, 1.0D).color(128, 128, 128, 255).endVertex();
+                bufferbuilder.pos((double)scrollBarRight, (double)(l1 + k1), 0.0D).tex(1.0D, 1.0D).color(128, 128, 128, 255).endVertex();
-                bufferbuilder.pos((double)j, (double)l1, 0.0D).tex(1.0D, 0.0D).color(128, 128, 128, 255).endVertex();
+                bufferbuilder.pos((double)scrollBarRight, (double)l1, 0.0D).tex(1.0D, 0.0D).color(128, 128, 128, 255).endVertex();
-                bufferbuilder.pos((double)i, (double)l1, 0.0D).tex(0.0D, 0.0D).color(128, 128, 128, 255).endVertex();
+                bufferbuilder.pos((double)scrollBarLeft, (double)l1, 0.0D).tex(0.0D, 0.0D).color(128, 128, 128, 255).endVertex();
                 tessellator.draw();
                 bufferbuilder.begin(7, DefaultVertexFormats.POSITION_TEX_COLOR);
-                bufferbuilder.pos((double)i, (double)(l1 + k1 - 1), 0.0D).tex(0.0D, 1.0D).color(192, 192, 192, 255).endVertex();
+                bufferbuilder.pos((double)scrollBarLeft, (double)(l1 + k1 - 1), 0.0D).tex(0.0D, 1.0D).color(192, 192, 192, 255).endVertex();
-                bufferbuilder.pos((double)(j - 1), (double)(l1 + k1 - 1), 0.0D).tex(1.0D, 1.0D).color(192, 192, 192, 255).endVertex();
+                bufferbuilder.pos((double)(scrollBarRight - 1), (double)(l1 + k1 - 1), 0.0D).tex(1.0D, 1.0D).color(192, 192, 192, 255).endVertex();
-                bufferbuilder.pos((double)(j - 1), (double)l1, 0.0D).tex(1.0D, 0.0D).color(192, 192, 192, 255).endVertex();
+                bufferbuilder.pos((double)(scrollBarRight - 1), (double)l1, 0.0D).tex(1.0D, 0.0D).color(192, 192, 192, 255).endVertex();
-                bufferbuilder.pos((double)i, (double)l1, 0.0D).tex(0.0D, 0.0D).color(192, 192, 192, 255).endVertex();
+                bufferbuilder.pos((double)scrollBarLeft, (double)l1, 0.0D).tex(0.0D, 0.0D).color(192, 192, 192, 255).endVertex();
                 tessellator.draw();
             }
 
@@ -159,6 +158,231 @@ public class GuiScrollPane extends GuiListExtended {
         }
     }
 
+    //SLOTHEIGHT MODIFICATIONS
+    //SlotHeight is still relied on for determining how much to scroll
+    @Override
+    protected int getContentHeight() {
+        //Add every entry height
+        int height = this.headerPadding;
+        for (IScrollEntry entry : listEntries) {
+            height += entry.getHeight();
+        }
+        return height;
+    }
+
+    public int getContentHeight(int count) {
+        //Add all count entry heights
+        int height = this.headerPadding;
+        for (int i = 0; i < count; i++) {
+            IScrollEntry entry = listEntries.get(i);
+            height += entry.getHeight();
+        }
+        return height;
+    }
+
+    @Override
+    public int getSlotIndexFromScreenCoords(int posX, int posY) {
+        int left = this.left + (this.width - this.getListWidth()) / 2;
+        int right = this.left + (this.width + this.getListWidth()) / 2;
+        int relativeMouseY = posY - this.top - this.headerPadding + (int)this.amountScrolled - 4; //click height in content dimensions
+        //int slotIndex = relativeMouseY / this.slotHeight;
+
+        //Iterate over every entry until relativeMouseY falls within its height
+        for (int i = 0; i < listEntries.size(); i++) {
+            IScrollEntry entry = listEntries.get(i);
+            if (relativeMouseY <= entry.getHeight())
+                return posX < this.getScrollBarX() && posX >= left && posX <= right && i >= 0 &&
+                       relativeMouseY >= 0 && i < this.getSize() ? i : -1;
+            relativeMouseY -= entry.getHeight();
+        }
+        return -1;
+    }
+
+    @Override
+    public boolean mouseClicked(int mouseX, int mouseY, int mouseEvent)
+    {
+        if (this.isMouseYWithinSlotBounds(mouseY))
+        {
+            int i = this.getSlotIndexFromScreenCoords(mouseX, mouseY);
+
+            if (i >= 0)
+            {
+                int j = this.left + this.width / 2 - this.getListWidth() / 2 + 2;
+                int k = this.top + 4 - this.getAmountScrolled() + getContentHeight(i) + this.headerPadding;
+                int relativeX = mouseX - j;
+                int relativeY = mouseY - k;
+
+                if (this.getListEntry(i).mousePressed(i, mouseX, mouseY, mouseEvent, relativeX, relativeY))
+                {
+                    this.setEnabled(false);
+                    return true;
+                }
+            }
+        }
+
+        return false;
+    }
+
+    @Override
+    public boolean mouseReleased(int x, int y, int mouseEvent)
+    {
+        for (int i = 0; i < this.getSize(); ++i)
+        {
+            int j = this.left + this.width / 2 - this.getListWidth() / 2 + 2;
+            int k = this.top + 4 - this.getAmountScrolled() + getContentHeight(i) + this.headerPadding;
+            int relativeX = x - j;
+            int relativeY = y - k;
+            this.getListEntry(i).mouseReleased(i, x, y, mouseEvent, relativeX, relativeY);
+        }
+
+        this.setEnabled(true);
+        return false;
+    }
+
+    @Override
+    public void handleMouseInput() {
+        if (this.isMouseYWithinSlotBounds(this.mouseY)) {
+            if (Mouse.getEventButton() == 0 && Mouse.getEventButtonState() && this.mouseY >= this.top &&
+                this.mouseY <= this.bottom) {
+                int i = this.left + (this.width - this.getListWidth()) / 2;
+                int j = this.left + (this.width + this.getListWidth()) / 2;
+                int relativeMouseY = this.mouseY - this.top - this.headerPadding + (int) this.amountScrolled -
+                                     4; //click height in content dimensions
+                int slotIndex = getSlotIndexFromScreenCoords(this.mouseX, this.mouseY);
+
+                if (slotIndex > -1) {
+                    this.elementClicked(slotIndex, false, this.mouseX, this.mouseY);
+                    this.selectedElement = slotIndex;
+                } else if (this.mouseX >= i && this.mouseX <= j && relativeMouseY < 0) {
+                    this.clickedHeader(this.mouseX - i, this.mouseY - this.top + (int) this.amountScrolled - 4);
+                }
+            }
+
+            if (Mouse.isButtonDown(0) && this.getEnabled()) {
+                if (this.initialClickY == -1) {
+                    boolean flag1 = true;
+
+                    if (this.mouseY >= this.top && this.mouseY <= this.bottom) {
+                        int i2 = this.left + (this.width - this.getListWidth()) / 2;
+                        int j2 = this.left + (this.width + this.getListWidth()) / 2;
+                        int relativeMouseY = this.mouseY - this.top - this.headerPadding + (int) this.amountScrolled -
+                                             4; //click height in content dimensions
+                        int slotIndex = getSlotIndexFromScreenCoords(this.mouseX, this.mouseY);
+
+                        if (slotIndex > -1) {
+                            boolean flag = slotIndex == this.selectedElement &&
+                                           Minecraft.getSystemTime() - this.lastClicked < 250L;
+                            this.elementClicked(slotIndex, flag, this.mouseX, this.mouseY);
+                            this.selectedElement = slotIndex;
+                            this.lastClicked = Minecraft.getSystemTime();
+                        } else if (this.mouseX >= i2 && this.mouseX <= j2 && relativeMouseY < 0) {
+                            this.clickedHeader(this.mouseX - i2,
+                                    this.mouseY - this.top + (int) this.amountScrolled - 4);
+                            flag1 = false;
+                        }
+
+                        int i3 = this.getScrollBarX();
+                        int j1 = i3 + 6;
+
+                        if (this.mouseX >= i3 && this.mouseX <= j1) {
+                            this.scrollMultiplier = -1.0F;
+                            int maxScroll = this.getMaxScroll();
+
+                            if (maxScroll < 1) {
+                                maxScroll = 1;
+                            }
+
+                            int l1 = (int) ((float) ((this.bottom - this.top) * (this.bottom - this.top)) /
+                                            (float) this.getContentHeight());
+                            l1 = MathHelper.clamp(l1, 32, this.bottom - this.top - 8);
+                            this.scrollMultiplier /= (float) (this.bottom - this.top - l1) / (float) maxScroll;
+                        } else {
+                            this.scrollMultiplier = 1.0F;
+                        }
+
+                        if (flag1) {
+                            this.initialClickY = this.mouseY;
+                        } else {
+                            this.initialClickY = -2;
+                        }
+                    } else {
+                        this.initialClickY = -2;
+                    }
+                } else if (this.initialClickY >= 0) {
+                    this.amountScrolled -= (float) (this.mouseY - this.initialClickY) * this.scrollMultiplier;
+                    this.initialClickY = this.mouseY;
+                }
+            } else {
+                this.initialClickY = -1;
+            }
+
+            int i2 = Mouse.getEventDWheel();
+
+            if (i2 != 0) {
+                if (i2 > 0) {
+                    i2 = -1;
+                } else if (i2 < 0) {
+                    i2 = 1;
+                }
+
+                this.amountScrolled += (float) (i2 * this.slotHeight / 2);
+            }
+        }
+    }
+
+    //Draw in center if it fits
+    @Override
+    protected void drawSelectionBox(int insideLeft, int insideTop, int mouseXIn, int mouseYIn, float partialTicks)
+    {
+        int size = this.getSize();
+        Tessellator tessellator = Tessellator.getInstance();
+        BufferBuilder bufferbuilder = tessellator.getBuffer();
+
+        //Find y to start with
+        int y = this.headerPadding + insideTop;
+        int contentHeight = getContentHeight();
+        int insideHeight = this.bottom - this.top - 4;
+
+        if (contentHeight < insideHeight) {
+            //it fits, so we can center it vertically
+            y += (insideHeight - contentHeight) / 2;
+        }
+
+        //Draw all entries
+        for (int i = 0; i < size; ++i)
+        {
+            int entryHeight = listEntries.get(i).getHeight();
+            int entryHeight2 = entryHeight - 4;
+
+            if (y > this.bottom || y + entryHeight2 < this.top)
+            {
+                this.updateItemPos(i, insideLeft, y, partialTicks);
+            }
+
+            if (this.showSelectionBox && this.isSelected(i))
+            {
+                int i1 = this.left + this.width / 2 - this.getListWidth() / 2;
+                int j1 = this.left + this.width / 2 + this.getListWidth() / 2;
+                GlStateManager.color(1.0F, 1.0F, 1.0F, 1.0F);
+                GlStateManager.disableTexture2D();
+                bufferbuilder.begin(7, DefaultVertexFormats.POSITION_TEX_COLOR);
+                bufferbuilder.pos((double)i1, (double)(y + entryHeight2 + 2), 0.0D).tex(0.0D, 1.0D).color(128, 128, 128, 255).endVertex();
+                bufferbuilder.pos((double)j1, (double)(y + entryHeight2 + 2), 0.0D).tex(1.0D, 1.0D).color(128, 128, 128, 255).endVertex();
+                bufferbuilder.pos((double)j1, (double)(y - 2), 0.0D).tex(1.0D, 0.0D).color(128, 128, 128, 255).endVertex();
+                bufferbuilder.pos((double)i1, (double)(y - 2), 0.0D).tex(0.0D, 0.0D).color(128, 128, 128, 255).endVertex();
+                bufferbuilder.pos((double)(i1 + 1), (double)(y + entryHeight2 + 1), 0.0D).tex(0.0D, 1.0D).color(0, 0, 0, 255).endVertex();
+                bufferbuilder.pos((double)(j1 - 1), (double)(y + entryHeight2 + 1), 0.0D).tex(1.0D, 1.0D).color(0, 0, 0, 255).endVertex();
+                bufferbuilder.pos((double)(j1 - 1), (double)(y - 1), 0.0D).tex(1.0D, 0.0D).color(0, 0, 0, 255).endVertex();
+                bufferbuilder.pos((double)(i1 + 1), (double)(y - 1), 0.0D).tex(0.0D, 0.0D).color(0, 0, 0, 255).endVertex();
+                tessellator.draw();
+                GlStateManager.enableTexture2D();
+            }
+
+            this.drawSlot(i, insideLeft, y, entryHeight2, mouseXIn, mouseYIn, partialTicks);
+            y += entryHeight;
+        }
+    }
+
     //PASSTHROUGHS
     public int initGui(int id, List<GuiButton> buttonList) {
         for (IScrollEntry entry : this.listEntries) {
@@ -205,5 +429,7 @@ public class GuiScrollPane extends GuiListExtended {
         void actionPerformed(GuiButton button);
 
         void onGuiClosed();
+
+        int getHeight();
     }
 }

src/main/java/nl/requios/effortlessbuilding/gui/MirrorSettingsGui.java

@@ -123,6 +123,8 @@ public class MirrorSettingsGui extends GuiCollapsibleScrollEntry {
         buttonList.addAll(mirrorButtonList);
         buttonList.addAll(mirrorIconButtonList);
 
+        setCollapsed(!buttonMirrorEnabled.isChecked());
+
         return id;
     }
 
@@ -219,6 +221,9 @@ public class MirrorSettingsGui extends GuiCollapsibleScrollEntry {
     @Override
     public void actionPerformed(GuiButton button) {
         super.actionPerformed(button);
+        if (button == buttonMirrorEnabled) {
+            setCollapsed(!buttonMirrorEnabled.isChecked());
+        }
         if (button == buttonCurrentPosition) {
             Vec3d pos = new Vec3d(Math.floor(mc.player.posX) + 0.5, Math.floor(mc.player.posY) + 0.5, Math.floor(mc.player.posZ) + 0.5);
             textMirrorPosX.setNumber(pos.x);
@@ -281,4 +286,9 @@ public class MirrorSettingsGui extends GuiCollapsibleScrollEntry {
     protected String getName() {
         return "Mirror";
     }
+
+    @Override
+    protected int getExpandedHeight() {
+        return 100;
+    }
 }

src/main/java/nl/requios/effortlessbuilding/gui/SettingsGui.java

@@ -24,7 +24,7 @@ public class SettingsGui extends GuiScreen {
     public void initGui() {
         int id = 0;
 
-        scrollPane = new GuiScrollPane(this, fontRenderer, 8, height - 17);
+        scrollPane = new GuiScrollPane(this, fontRenderer, 8, height - 30);
 
         mirrorSettingsGui = new MirrorSettingsGui(scrollPane);
         scrollPane.listEntries.add(mirrorSettingsGui);
@@ -32,10 +32,6 @@ public class SettingsGui extends GuiScreen {
         arraySettingsGui = new ArraySettingsGui(scrollPane);
         scrollPane.listEntries.add(arraySettingsGui);
 
-        //TODO for testing
-        mirrorSettingsGui = new MirrorSettingsGui(scrollPane);
-        scrollPane.listEntries.add(mirrorSettingsGui);
-
         id = scrollPane.initGui(id, buttonList);
 
         //Close button