Layout improvements

core/src/mindustry/ui/ItemsDisplay.java

@@ -1,6 +1,7 @@
 package mindustry.ui;
 
 import arc.graphics.*;
+import arc.scene.ui.*;
 import arc.scene.ui.layout.*;
 import mindustry.core.GameState.*;
 import mindustry.gen.*;
@@ -21,18 +22,31 @@ public class ItemsDisplay extends Table{
         top().left();
         margin(0);
 
-        table(Tex.button,t -> {
-            t.margin(10).marginLeft(15).marginTop(15f);
-            t.label(() -> state.is(State.menu) ? "$launcheditems" : "$launchinfo").colspan(3).padBottom(4).left().colspan(3).width(210f).wrap();
-            t.row();
-            for(Item item : content.items()){
-                if(item.type == ItemType.material && data.isUnlocked(item)){
-                    t.label(() -> format(item)).left();
-                    t.addImage(item.icon(Cicon.small)).size(8 * 3).padLeft(4).padRight(4);
-                    t.add(item.localizedName).color(Color.lightGray).left();
-                    t.row();
+        table(Tex.button, c -> {
+            c.margin(10).marginLeft(12).marginTop(15f);
+            c.marginRight(12f);
+            c.left();
+
+            Collapser col = new Collapser(base -> base.pane(t -> {
+                t.marginRight(30f);
+                t.left();
+                for(Item item : content.items()){
+                    if(item.type == ItemType.material && data.isUnlocked(item)){
+                        t.label(() -> format(item)).left();
+                        t.addImage(item.icon(Cicon.small)).size(8 * 3).padLeft(4).padRight(4);
+                        t.add(item.localizedName).color(Color.lightGray).left();
+                        t.row();
+                    }
                 }
-            }
+            }).get().setScrollingDisabled(true, false), false).setDuration(0.3f);
+
+            c.addImageTextButton("$launcheditems", Icon.downOpen, Styles.clearTogglet, col::toggle).update(t -> {
+                t.setText(state.is(State.menu) ? "$launcheditems" : "$launchinfo");
+                t.setChecked(col.isCollapsed());
+                ((Image)t.getChildren().get(1)).setDrawable(col.isCollapsed() ? Icon.upOpen : Icon.downOpen);
+            }).padBottom(4).left().fillX().margin(12f);
+            c.row();
+            c.add(col);
         });
     }
 

core/src/mindustry/ui/dialogs/TechTreeDialog.java

@@ -110,7 +110,7 @@ public class TechTreeDialog extends FloatingDialog{
     }
 
     void treeLayout(){
-        RadialTreeLayout layout = new RadialTreeLayout();
+        TreeLayout layout = new RadialTreeLayout();
         LayoutNode node = new LayoutNode(root, null);
         layout.layout(node);
         float minx = 0f, miny = 0f, maxx = 0f, maxy = 0f;

core/src/mindustry/ui/fragments/PlacementFragment.java

@@ -31,11 +31,13 @@ public class PlacementFragment extends Fragment{
     Array<Block> returnArray = new Array<>();
     Array<Category> returnCatArray = new Array<>();
     boolean[] categoryEmpty = new boolean[Category.all.length];
-    ObjectMap<Category,Block> selectedBlocks = new ObjectMap<Category,Block>();
+    ObjectMap<Category,Block> selectedBlocks = new ObjectMap<>();
+    ObjectFloatMap<Category> scrollPositions = new ObjectFloatMap<>();
     Block hovered, lastDisplay;
     Tile lastHover;
     Tile hoverTile;
     Table blockTable, toggler, topTable;
+    ScrollPane blockPane;
     boolean lastGround;
     boolean blockSelectEnd;
     int blockSelectSeq;
@@ -86,6 +88,8 @@ public class PlacementFragment extends Fragment{
     }
 
     boolean gridUpdate(InputHandler input){
+        scrollPositions.put(currentCategory, blockPane.getScrollY());
+
         if(Core.input.keyDown(Binding.pick)){ //mouse eyedropper select
             Tile tile = world.ltileWorld(Core.input.mouseWorld().x, Core.input.mouseWorld().y);
             Block tryRecipe = tile == null ? null : tile.block();
@@ -240,6 +244,9 @@ public class PlacementFragment extends Fragment{
                         }
                     }
                     blockTable.act(0f);
+                    blockPane.act(0f);
+                    blockPane.setScrollYForce(scrollPositions.get(currentCategory, 0));
+                    Core.app.post(() -> blockPane.setScrollYForce(scrollPositions.get(currentCategory, 0)));
                 };
 
                 //top table with hover info
@@ -343,14 +350,15 @@ public class PlacementFragment extends Fragment{
                 frame.row();
                 frame.table(Tex.pane2, blocksSelect -> {
                     blocksSelect.margin(4).marginTop(0);
-                    blocksSelect.pane(blocks -> blockTable = blocks).height(194f).update(pane -> {
+                    blockPane = blocksSelect.pane(blocks -> blockTable = blocks).height(194f).update(pane -> {
                         if(pane.hasScroll()){
                             Element result = Core.scene.hit(Core.input.mouseX(), Core.input.mouseY(), true);
                             if(result == null || !result.isDescendantOf(pane)){
                                 Core.scene.setScrollFocus(null);
                             }
                         }
-                    }).grow().get().setStyle(Styles.smallPane);
+                    }).grow().get();
+                    blockPane.setStyle(Styles.smallPane);
                     blocksSelect.row();
                     blocksSelect.table(control.input::buildPlacementUI).name("inputTable").growX();
                 }).fillY().bottom().touchable(Touchable.enabled);

core/src/mindustry/ui/layout/RadialTreeLayout.java

@@ -12,7 +12,7 @@ public class RadialTreeLayout implements TreeLayout{
     @Override
     public void layout(TreeNode root){
         startRadius = root.height * 2.4f;
-        delta = root.height * 2.4f;
+        delta = root.height * 20.4f;
 
         bfs(root, true);
 

core/src/mindustry/ui/layout/RowTreeLayout.java

@@ -0,0 +1,36 @@
+package mindustry.ui.layout;
+
+import arc.struct.*;
+
+public class RowTreeLayout implements TreeLayout{
+
+    @Override
+    public void layout(TreeNode root){
+       layout(root, 0, new IntArray());
+
+        /*
+        def minimum_ws(tree, depth=0):
+    tree.x = nexts[depth]
+    tree.y = depth
+    nexts[depth] += 1
+    for c in tree.children:
+        minimum_ws(tree, c)
+         */
+    }
+
+    void layout(TreeNode node, int depth, IntArray nexts){
+        float size = node.height * 5f;
+
+        if(nexts.size < depth + 1){
+            nexts.ensureCapacity(depth + 1);
+            nexts.size = depth + 1;
+        }
+
+        node.x = size * nexts.get(depth);
+        node.y = size * depth;
+        nexts.incr(depth, 1);
+        for(TreeNode child : node.children){
+            layout(child, depth + 1, nexts);
+        }
+    }
+}

gradle.properties

@@ -1,3 +1,3 @@
 org.gradle.daemon=true
 org.gradle.jvmargs=-Xms256m -Xmx1024m
-archash=85e020b1565d7f6490d2281411b810916046e5ee
+archash=e5894c1aaa00d4ba1c75ba16c7f341d2ea70344c