More Paint Functions

features/features.json

@@ -1,4 +1,9 @@
 [
+  {
+    "version": 2,
+    "id": "more-paint-functions",
+    "versionAdded": "v4.0.0"
+  },
   {
     "version": 2,
     "id": "asset-size",

features/more-editor-fonts/script.js

@@ -9,6 +9,7 @@ export default async function ({ feature, console }) {
   feature.page.waitForElements(
     "div[class^='asset-panel_wrapper_'] div[class^='action-menu_more-buttons_']",
     function (menu) {
+      if (feature.traps.gui().editorTab.activeTabIndex !== 1) return;
       if (menu.querySelector(".ste-more-fonts")) return;
 
       let div = document.createElement("div");

features/more-paint-functions/data.json

@@ -0,0 +1,22 @@
+{
+  "title": "More Paint Functions",
+  "description": "Adds new functions to the paint editor. The new functions include unite (combining them into one), subtract (removing one shape from another), exclude (removing the overlap of 2 items), and intersect (removing everything but the overlap of 2 items). Each function only works with 2 items.",
+  "credits": [
+    { "username": "rgantzos", "url": "https://scratch.mit.edu/users/rgantzos/" }
+  ],
+  "type": ["Editor"],
+  "tags": ["New", "Featured"],
+  "dynamic": true,
+  "scripts": [{ "file": "script.js", "runOn": "/projects/*" }],
+  "styles": [{ "file": "style.css", "runOn": "/projects/*" }],
+  "resources": [
+    { "name": "function-exclude", "path": "/icons/exclude.svg" },
+    { "name": "function-intersect", "path": "/icons/intersect.svg" },
+    { "name": "function-subtract", "path": "/icons/subtract.svg" },
+    { "name": "function-unite", "path": "/icons/unite.svg" }
+  ],
+  "components": [{
+    "type": "warning",
+    "content": "In order to avoid clutter in the paint editor, this feature replaces the Copy, Paste and Delete buttons. However, hotkeys still work."
+  }]
+}

features/more-paint-functions/script.js

@@ -0,0 +1,161 @@
+export default async function ({ feature, console }) {
+  function unite() {
+    let paper = feature.traps.getPaper();
+    let items = paper.project.selectedItems;
+
+    if (items.length !== 2) return;
+
+    for (var i in items) {
+      if (i > 0) {
+        items[0].unite(items[i]);
+      }
+    }
+
+    for (var i in items) {
+      items[i].remove();
+    }
+
+    paper.tool.onUpdateImage();
+  }
+
+  function subtract() {
+    let paper = feature.traps.getPaper();
+    let items = paper.project.selectedItems;
+
+    if (items.length !== 2) return;
+
+    for (var i in items) {
+      if (i > 0) {
+        items[0].subtract(items[i]);
+      }
+    }
+
+    for (var i in items) {
+      items[i].remove();
+    }
+
+    paper.tool.onUpdateImage();
+  }
+
+  function exclude() {
+    let paper = feature.traps.getPaper();
+    let items = paper.project.selectedItems;
+
+    if (items.length !== 2) return;
+
+    for (var i in items) {
+      if (i > 0) {
+        items[0].exclude(items[i]);
+      }
+    }
+
+    for (var i in items) {
+      items[i].remove();
+    }
+
+    paper.tool.onUpdateImage();
+  }
+
+  function intersect() {
+    let paper = feature.traps.getPaper();
+    let items = paper.project.selectedItems;
+
+    if (items.length !== 2) return;
+
+    for (var i in items) {
+      if (i > 0) {
+        items[0].intersect(items[i]);
+      }
+    }
+
+    for (var i in items) {
+      items[i].remove();
+    }
+
+    paper.tool.onUpdateImage();
+  }
+
+  ScratchTools.waitForElements(
+    "div[class^='mode-tools_mod-labeled-icon-height_']",
+    async function (row) {
+      if (row.querySelector(".ste-more-functions")) return;
+
+      let functions = [
+        {
+          name: "Unite",
+          icon: "function-unite",
+          callback: unite,
+        },
+        {
+          name: "Subtract",
+          icon: "function-subtract",
+          callback: subtract,
+        },
+        {
+          name: "Exclude",
+          icon: "function-exclude",
+          callback: exclude,
+        },
+        {
+          name: "Intersect",
+          icon: "function-intersect",
+          callback: intersect,
+        },
+      ];
+
+      for (var i in functions) {
+        row.appendChild(makeButton(functions[i]));
+      }
+
+      let align = await ScratchTools.waitForElement(".ste-align-items");
+      row.appendChild(align);
+    }
+  );
+
+  feature.redux.subscribe(function () {
+    if (document.querySelector(".ste-more-functions")) {
+      let span = document.querySelector(".ste-more-functions");
+      if (
+        feature.traps.paint().format === "BITMAP" ||
+        feature.traps.paint().selectedItems?.length < 2
+      ) {
+        document.querySelectorAll(".ste-more-functions").forEach(function (el) {
+          el.classList.add("button_mod-disabled_1rf31");
+        });
+      } else {
+        document.querySelectorAll(".ste-more-functions").forEach(function (el) {
+          el.classList.remove("button_mod-disabled_1rf31");
+        });
+      }
+    }
+  });
+
+  function makeButton({ name, icon, callback }) {
+    let span = document.createElement("span");
+    span.className =
+      "button_button_u6SE2 labeled-icon-button_mod-edit-field_1bXYC ste-more-functions";
+    span.role = "button";
+
+    let img = document.createElement("img");
+    img.src = feature.self.getResource(icon);
+    img.className = "labeled-icon-button_edit-field-icon_3j-Pf";
+    img.alt = name;
+    img.title = name;
+    img.draggable = false;
+    span.appendChild(img);
+
+    let label = document.createElement("span");
+    label.textContent = name;
+    label.className = "labeled-icon-button_edit-field-title_1ZoEV";
+    span.appendChild(label);
+
+    span.addEventListener("click", function (e) {
+      if (span.className.includes("disabled")) return;
+      callback();
+    });
+
+    feature.self.hideOnDisable(span);
+
+    return span;
+  }
+}

features/more-paint-functions/style.css

@@ -0,0 +1,7 @@
+div[class*='mode-tools_mode-tools_'] > div[class*='mode-tools_mod-dashed-border_']:nth-child(1), div[class*='mode-tools_mode-tools_'] > div[class*='mode-tools_mod-dashed-border_']:nth-child(2) {
+    display: none;
+}
+
+div[class*='mode-tools_mode-tools_'] > div[class*='mode-tools_mod-labeled-icon-height_']:nth-child(3) {
+    margin-left: 0px !important;
+}