feat: add rect select but have some problems

src/views/AdminView.vue

@@ -115,7 +115,7 @@ import { isNull, isUndefined } from "lodash";
 import { ref } from "vue";
 import {  RemoteUpdateClient } from "@/APIClient";
 import { useDialogStore } from "@/stores/dialog";
-import { Common } from "@/Common";
+import { Common } from "@/utils/Common";
 
 const dialog = useDialogStore();
 

src/views/ProjectView.vue

@@ -1,25 +1,33 @@
 <template>
   <div class="h-screen w-screen">
-    <v-stage class="h-full w-full" ref="stage" :config="stageSize">
+    <v-stage class="h-full w-full" ref="stage" :config="stageSize" @mousedown="handleMouseDown"
+      @mousemove="handleMouseMove" @mouseup="handleMouseUp" @click="handleStageClick">
       <v-layer ref="layer">
-        <v-group ref="group">
-          <v-star v-for="item in list" :key="item.id" :config="{
-            x: item.x,
-            y: item.y,
-            rotation: item.rotation,
-            id: item.id,
-            numPoints: 5,
-            innerRadius: 30,
-            outerRadius: 50,
-            fill: '#89b717',
-            opacity: 0.8,
-            shadowColor: 'black',
-            shadowBlur: 10,
-            shadowOpacity: 0.6,
-            scaleX: item.scale,
-            scaleY: item.scale,
-          }" />
-        </v-group>
+        <v-star v-for="item in list" :key="item.id" :config="{
+          x: item.x,
+          y: item.y,
+          rotation: item.rotation,
+          id: item.id,
+          draggable: true,
+          numPoints: 5,
+          innerRadius: 30,
+          outerRadius: 50,
+          fill: '#89b717',
+          opacity: 0.8,
+          shadowColor: 'black',
+          shadowBlur: 10,
+          shadowOpacity: 0.6,
+          scaleX: item.scale,
+          scaleY: item.scale,
+        }" @dragstart="handleDragStart" @dragend="handleDragEnd" />
+        <v-transformer ref="transformer" />
+        <v-rect ref="selectRect" v-if="selectionRectangle.visible" :config="{
+          x: Math.min(selectionRectangle.x1, selectionRectangle.x2),
+          y: Math.min(selectionRectangle.y1, selectionRectangle.y2),
+          width: Math.abs(selectionRectangle.x2 - selectionRectangle.x1),
+          height: Math.abs(selectionRectangle.y2 - selectionRectangle.y1),
+          fill: '#0069FF88',
+        }" />
       </v-layer>
     </v-stage>
     <div class="absolute top-20 left-10">
@@ -31,54 +39,24 @@
 
 <script setup lang="ts">
 import { isNull, isUndefined } from "mathjs";
-import { ref, onMounted, useTemplateRef, type HTMLAttributes } from "vue";
-
-type CanvasObject = {
-  id: string;
-  x: number;
-  y: number;
-  rotation: number;
-  scale: number;
-};
+import Konva from "konva";
+import type {
+  VGroup,
+  VLayer,
+  VNode,
+  VStage,
+  VTransformer,
+} from "@/utils/VueKonvaType";
+import { ref, reactive, watch, onMounted, useTemplateRef } from "vue";
 
 const stageSize = {
   width: window.innerWidth,
   height: window.innerHeight,
 };
 
-const list = ref<CanvasObject[]>([]);
-const group = useTemplateRef<HTMLAttributes>("group");
-const dragItemId = ref(null);
-
-function handleCacheChange(e: Event) {
-  const target = e.target as HTMLInputElement;
-  const shouldCache = isNull(target) ? false : target.checked;
-  if (shouldCache) {
-    group.getNode().cache();
-  } else {
-    group.getNode().clearCache();
-  }
-}
-
-function handleDragstart(e: Event) {
-  // save drag element:
-  const target = e.target as HTMLInputElement;
-  dragItemId.value = e.target?.id();
-  // move current element to the top:
-  const item = list.value.find((i) => i.id === dragItemId.value);
-  if (isUndefined(item)) return;
-
-  const index = list.value.indexOf(item);
-  list.value.splice(index, 1);
-  list.value.push(item);
-}
-
-function handleDragend() {
-  dragItemId.value = null;
-}
-
+const list = ref<Konva.NodeConfig[]>([]);
 onMounted(() => {
-  for (let n = 0; n < 30; n++) {
+  for (let n = 0; n < 100; n++) {
     list.value.push({
       id: Math.round(Math.random() * 10000).toString(),
       x: Math.random() * stageSize.width,
@@ -88,6 +66,232 @@ onMounted(() => {
     });
   }
 });
+
+const layer = useTemplateRef<VLayer>("layer");
+const transformer = useTemplateRef<VTransformer>("transformer");
+const selectRect = useTemplateRef<VNode>("selectRect");
+const stage = useTemplateRef<VStage>("stage");
+
+const isDragging = ref(false);
+const dragItemId = ref<string | null>(null);
+
+const isSelecting = ref(false);
+const selectedIds = ref<string[]>([]);
+const selectionRectangle = reactive({
+  visible: false,
+  x1: 0,
+  y1: 0,
+  x2: 0,
+  y2: 0,
+});
+
+
+function degToRad(angle: number) {
+  return (angle / 180) * Math.PI;
+}
+
+function getCorner(
+  pivotX: number,
+  pivotY: number,
+  diffX: number,
+  diffY: number,
+  angle: number,
+) {
+  const distance = Math.sqrt(diffX * diffX + diffY * diffY);
+  angle += Math.atan2(diffY, diffX);
+  const x = pivotX + distance * Math.cos(angle);
+  const y = pivotY + distance * Math.sin(angle);
+  return { x, y };
+}
+
+function getClientRect(element: Konva.Node) {
+  const { x, y, width, height, rotation } = element;
+  const rad = degToRad(rotation() ?? 0);
+
+  const p1 = getCorner(x(), y(), 0, 0, rad);
+  const p2 = getCorner(x(), y(), width(), 0, rad);
+  const p3 = getCorner(x(), y(), width(), height(), rad);
+  const p4 = getCorner(x(), y(), 0, height(), rad);
+
+  const minX = Math.min(p1.x, p2.x, p3.x, p4.x);
+  const minY = Math.min(p1.y, p2.y, p3.y, p4.y);
+  const maxX = Math.max(p1.x, p2.x, p3.x, p4.x);
+  const maxY = Math.max(p1.y, p2.y, p3.y, p4.y);
+
+  return {
+    x: minX,
+    y: minY,
+    width: maxX - minX,
+    height: maxY - minY,
+  };
+}
+
+function handleCacheChange(e: Event) {
+  const target = e.target as HTMLInputElement;
+  const shouldCache = isNull(target) ? false : target.checked;
+
+  if (isNull(layer.value)) return;
+
+  if (shouldCache) {
+    layer.value.getNode().cache();
+  } else {
+    layer.value.getNode().clearCache();
+  }
+}
+
+// Drag event handlers
+function handleDragStart(e: Event) {
+  isDragging.value = true;
+
+  // save drag element:
+  const target = e.target as unknown as Konva.Node;
+  dragItemId.value = target.id();
+
+  // move current element to the top:
+  const item = list.value.find((i) => i.id === dragItemId.value);
+  if (isUndefined(item)) return;
+
+  const index = list.value.indexOf(item);
+  list.value.splice(index, 1);
+  list.value.push(item);
+}
+
+function handleDragEnd() {
+  isDragging.value = false;
+  dragItemId.value = null;
+}
+
+// Update transformer nodes when selection changes
+watch(selectedIds, () => {
+  if (!transformer.value) return;
+
+  const nodes = selectedIds.value
+    .map((id) => {
+      return layer.value
+        ?.getNode()
+        .find((ref: Konva.Node) => ref.attrs.id === id);
+    })
+    .flat()
+    .filter(Boolean) as Konva.Node[];
+
+  if (!isUndefined(nodes)) transformer.value.getNode().nodes(nodes);
+});
+
+// Mouse event handlers
+function handleStageClick(e: Event) {
+  if (isNull(e.target)) return;
+  const target = e.target as unknown as Konva.Container;
+
+  // if we are selecting with rect, do nothing
+  if (selectionRectangle.visible) {
+    return;
+  }
+
+  // if click on empty area - remove all selections
+  if ((e.target as unknown) === target.getStage()) {
+    selectedIds.value = [];
+    return;
+  }
+
+  // do nothing if clicked NOT on our rectangles
+  if (!target.hasName("rect")) {
+    return;
+  }
+
+  const clickedId = target.attrs.id;
+
+  // do we pressed shift or ctrl?
+  const metaPressed =
+    (e as any).evt?.shiftKey ||
+    (e as any).evt?.ctrlKey ||
+    (e as any).evt?.metaKey;
+  const isSelected = selectedIds.value.includes(clickedId);
+
+  if (!metaPressed && !isSelected) {
+    // if no key pressed and the node is not selected
+    // select just one
+    selectedIds.value = [clickedId];
+  } else if (metaPressed && isSelected) {
+    // if we pressed keys and node was selected
+    // we need to remove it from selection:
+    selectedIds.value = selectedIds.value.filter((id) => id !== clickedId);
+  } else if (metaPressed && !isSelected) {
+    // add the node into selection
+    selectedIds.value = [...selectedIds.value, clickedId];
+  }
+}
+
+function handleMouseDown(e: Event) {
+  if (isNull(e.target)) return;
+  const target = e.target as unknown as Konva.Container;
+
+  // do nothing if we mousedown on any shape
+  if ((e.target as unknown) !== target.getStage()) {
+    return;
+  }
+
+  // start selection rectangle
+  isSelecting.value = true;
+  const pos = target.getStage()?.getPointerPosition();
+  if (!isNull(pos) && !isUndefined(pos)) {
+    selectionRectangle.visible = true;
+    selectionRectangle.x1 = pos.x;
+    selectionRectangle.y1 = pos.y;
+    selectionRectangle.x2 = pos.x;
+    selectionRectangle.y2 = pos.y;
+  }
+}
+
+function handleMouseMove(e: Event) {
+  if (isNull(e.target)) return;
+  const target = e.target as unknown as Konva.Container;
+
+  // do nothing if we didn't start selection
+  if (!isSelecting.value) {
+    return;
+  }
+
+  const pos = target.getStage()?.getPointerPosition();
+  if (!isNull(pos) && !isUndefined(pos)) {
+    selectionRectangle.x2 = pos.x;
+    selectionRectangle.y2 = pos.y;
+  }
+}
+
+function handleMouseUp() {
+  // do nothing if we didn't start selection
+  if (!isSelecting.value) {
+    return;
+  }
+
+  isSelecting.value = false;
+
+  // update visibility in timeout, so we can check it in click event
+  setTimeout(() => {
+    selectionRectangle.visible = false;
+  });
+
+  const selBox = {
+    x: Math.min(selectionRectangle.x1, selectionRectangle.x2),
+    y: Math.min(selectionRectangle.y1, selectionRectangle.y2),
+    width: Math.abs(selectionRectangle.x2 - selectionRectangle.x1),
+    height: Math.abs(selectionRectangle.y2 - selectionRectangle.y1),
+  };
+
+  if (isNull(layer.value)) return;
+  const selected = layer.value.getNode().children.filter((node: Konva.Node) => {
+    // Check if rectangle intersects with selection box
+    if (
+      node === transformer.value?.getNode() ||
+      node === selectRect.value?.getNode()
+    )
+      return false;
+    return Konva.Util.haveIntersection(selBox, node.getClientRect());
+  });
+
+  selectedIds.value = selected.map((node: Konva.Node) => node.id());
+}
+
 </script>
 
 <style>

src/views/TestView.vue

@@ -44,7 +44,7 @@
 import { JtagClient, type FileParameter } from "@/APIClient";
 import UploadCard from "@/components/UploadCard.vue";
 import { useDialogStore } from "@/stores/dialog";
-import { Common } from "@/Common";
+import { Common } from "@/utils/Common";
 import { toNumber, isUndefined } from "lodash";
 import { ref } from "vue";