From 452bcd5c011b8419a1d1591223ae523b463eef24 Mon Sep 17 00:00:00 2001
From: Evert Prants <evert@lunasqu.ee>
Date: Wed, 18 Jan 2023 21:15:51 +0200
Subject: [PATCH] cutting tool, line delete tool

---
 src/components/house-planner/HousePlanner.vue |  16 +++
 .../house-planner/PlannerToolbar.vue          |   2 +-
 src/modules/house-planner/canvas.ts           |   3 +
 src/modules/house-planner/tools.ts            |   2 +
 src/modules/house-planner/tools/cut.ts        | 121 ++++++++++++++++++
 src/modules/house-planner/tools/line.ts       |   7 +-
 6 files changed, 146 insertions(+), 5 deletions(-)
 create mode 100644 src/modules/house-planner/tools/cut.ts

diff --git a/src/components/house-planner/HousePlanner.vue b/src/components/house-planner/HousePlanner.vue
index 075c070..af05762 100644
--- a/src/components/house-planner/HousePlanner.vue
+++ b/src/components/house-planner/HousePlanner.vue
@@ -59,6 +59,8 @@ import {
   HomeIcon,
   ArrowsPointingOutIcon,
   ArrowDownOnSquareIcon,
+  ScissorsIcon,
+  XMarkIcon,
 } from '@heroicons/vue/24/outline';
 import { useSessionStorage } from '@vueuse/core';
 import { onMounted, ref, shallowRef } from 'vue';
@@ -139,6 +141,20 @@ const toolbar: ToolbarTool[] = [
       },
     ],
   },
+  {
+    title: 'Cut',
+    icon: ScissorsIcon,
+    tool: 'cut',
+    subTool: 'cut',
+    children: [
+      {
+        title: 'Cut Segment',
+        icon: XMarkIcon,
+        tool: 'cut',
+        subTool: 'remove-segment',
+      },
+    ],
+  },
 ];
 
 const selectTool = (newTool?: string, newSubTool?: string) => {
diff --git a/src/components/house-planner/PlannerToolbar.vue b/src/components/house-planner/PlannerToolbar.vue
index 8879f43..a0a3f1b 100644
--- a/src/components/house-planner/PlannerToolbar.vue
+++ b/src/components/house-planner/PlannerToolbar.vue
@@ -1,6 +1,6 @@
 <template>
   <div
-    class="absolute bottom-0 z-10 w-screen max-w-xs rounded-lg bg-white lg:left-1/2 lg:ml-0 lg:-translate-x-1/2"
+    class="absolute bottom-0 z-10 w-screen max-w-md rounded-lg bg-white lg:left-1/2 lg:ml-0 lg:-translate-x-1/2"
   >
     <div
       class="flex flex-1 flex-row items-center justify-center space-x-2 py-4 px-4 shadow-lg ring-1 ring-black ring-opacity-5"
diff --git a/src/modules/house-planner/canvas.ts b/src/modules/house-planner/canvas.ts
index 8656d50..0fa169b 100644
--- a/src/modules/house-planner/canvas.ts
+++ b/src/modules/house-planner/canvas.ts
@@ -129,6 +129,9 @@ export class HousePlannerCanvas {
     }
 
     for (const segment of segments) {
+      if (segment.start) {
+        path.moveTo(...segment.start);
+      }
       if ((segment as BezierSegment).startControl) {
         this.makeBezier(segment as BezierSegment, path);
         continue;
diff --git a/src/modules/house-planner/tools.ts b/src/modules/house-planner/tools.ts
index f04ad40..cece037 100644
--- a/src/modules/house-planner/tools.ts
+++ b/src/modules/house-planner/tools.ts
@@ -10,6 +10,7 @@ import {
   ToolEvent,
   Vec2,
 } from './interfaces';
+import { CutTool } from './tools/cut';
 import { LineTool } from './tools/line';
 import { MoveTool } from './tools/move';
 
@@ -22,6 +23,7 @@ export class HousePlannerCanvasTools implements ICanvasToolMouseEvents {
   public tools: Record<string, ICanvasToolBase<unknown>> = {
     ['move']: new MoveTool(this),
     ['line']: new LineTool(this),
+    ['cut']: new CutTool(this),
   };
   public history = new HousePlannerCanvasHistory();
   public lastStrokeWidth = 16;
diff --git a/src/modules/house-planner/tools/cut.ts b/src/modules/house-planner/tools/cut.ts
new file mode 100644
index 0000000..14a36a6
--- /dev/null
+++ b/src/modules/house-planner/tools/cut.ts
@@ -0,0 +1,121 @@
+import {
+  BezierSegment,
+  LayerObject,
+  Line,
+  LineSegment,
+  Vec2,
+} from '../interfaces';
+import { CanvasToolBase } from './tool-base';
+
+export type CutToolType = 'cut' | 'remove-segment';
+export class CutTool extends CanvasToolBase<CutToolType> {
+  public name = 'cut';
+  public subTool: CutToolType | undefined = 'cut';
+
+  mouseMoved(mouse: Vec2, offset: Vec2, mouseAbsolute: Vec2) {
+    super.mouseMoved(mouse, offset, mouseAbsolute);
+    this.renderer.draw();
+  }
+  mouseDown(targetObject?: LayerObject | undefined): void {
+    if (
+      !targetObject ||
+      targetObject.type === 'curve' ||
+      targetObject.type === 'object'
+    )
+      return;
+    const line = targetObject as Line;
+    const segment = this.manager.getMousedLineSegment(line);
+    if (!segment) return;
+    const segmentIndex = line.segments.indexOf(segment);
+
+    if (this.subTool === 'remove-segment') {
+      const nextSegment = line.segments[segmentIndex + 1];
+      if (!nextSegment) return;
+      if (segment.start) {
+        nextSegment.start = segment.start;
+        line.segments.splice(segmentIndex, 1);
+      } else {
+        nextSegment.start = segment.end;
+        line.segments.splice(segmentIndex, 1);
+      }
+    } else {
+      const currentEnd: Vec2 = [...segment.end];
+      segment.end = [...this.mousePosition];
+      line.segments.splice(segmentIndex + 1, 0, { end: currentEnd });
+    }
+    this.renderer.draw();
+  }
+
+  drawBezierControls(bezier: BezierSegment, previousEnd: Vec2) {
+    const [cp1x, cp1y] = bezier.startControl;
+    const [cp2x, cp2y] = bezier.endControl;
+    const [endx, endy] = bezier.end;
+    const [prevx, prevy] = previousEnd;
+    this.ctx.fillStyle = '#00ddffaa';
+    this.ctx.strokeStyle = '#00ddffaa';
+    this.ctx.lineWidth = 2;
+    this.ctx.beginPath();
+    this.ctx.arc(cp1x, cp1y, this.manager.selectError / 2, 0, 2 * Math.PI);
+    this.ctx.fill();
+
+    this.ctx.beginPath();
+    this.ctx.arc(cp2x, cp2y, this.manager.selectError / 2, 0, 2 * Math.PI);
+    this.ctx.fill();
+
+    this.ctx.beginPath();
+    this.ctx.moveTo(cp1x, cp1y);
+    this.ctx.lineTo(prevx, prevy);
+    this.ctx.stroke();
+
+    this.ctx.beginPath();
+    this.ctx.moveTo(cp2x, cp2y);
+    this.ctx.lineTo(endx, endy);
+    this.ctx.stroke();
+  }
+
+  drawLineControls(line: LineSegment, previousEnd: Vec2) {
+    const [endx, endy] = line.end;
+    this.ctx.fillStyle = '#00ddffaa';
+
+    this.ctx.beginPath();
+    this.ctx.arc(endx, endy, this.manager.selectError / 2, 0, 2 * Math.PI);
+    this.ctx.fill();
+
+    if (line.start) {
+      const [startx, starty] = line.start;
+      this.ctx.beginPath();
+      this.ctx.arc(
+        startx,
+        starty,
+        this.manager.selectError / 2,
+        0,
+        2 * Math.PI
+      );
+      this.ctx.fill();
+    }
+  }
+
+  drawControls(): void {
+    for (const object of this.manager.selectedObjects) {
+      const line = object as Line;
+      if (line.segments && line.render) {
+        let lastSegment = null;
+        for (const segment of line.segments) {
+          const bezier = segment as BezierSegment;
+          const previousPoint = lastSegment ? lastSegment.end : segment.start!;
+          if (bezier.startControl && bezier.endControl) {
+            this.drawBezierControls(bezier, previousPoint);
+          }
+          this.drawLineControls(segment, previousPoint);
+          lastSegment = segment;
+        }
+      }
+    }
+
+    const [mx, my] = this.mousePosition;
+    this.ctx.fillStyle = '#00ddffaa';
+    this.ctx.beginPath();
+    this.ctx.arc(mx, my, this.manager.selectError / 2, 0, 2 * Math.PI);
+    this.ctx.fill();
+  }
+}
diff --git a/src/modules/house-planner/tools/line.ts b/src/modules/house-planner/tools/line.ts
index 8da6ff1..e0cae2f 100644
--- a/src/modules/house-planner/tools/line.ts
+++ b/src/modules/house-planner/tools/line.ts
@@ -6,6 +6,7 @@ import { CanvasToolBase } from './tool-base';
 export type LineToolType = 'line' | 'curve' | 'room';
 export class LineTool extends CanvasToolBase<LineToolType> {
   public name = 'line';
+  public autoClose = false;
   private drawingLine: Line | null = null;
   public subTool: LineToolType = 'line';
 
@@ -17,8 +18,6 @@ export class LineTool extends CanvasToolBase<LineToolType> {
     this.ctx.fill();
   }
 
-  mouseDown(targetObject?: LayerObject | undefined): void {}
-
   mouseMoved(mouse: Vec2, offset: Vec2, mouseAbsolute: Vec2): void {
     super.mouseMoved(mouse, offset, mouseAbsolute);
     if (this.drawingLine) {
@@ -116,7 +115,7 @@ export class LineTool extends CanvasToolBase<LineToolType> {
         ) ||
         this.drawingLine.type === 'curve'
       ) {
-        if (this.drawingLine.type !== 'curve') {
+        if (this.drawingLine.type !== 'curve' && this.autoClose) {
           this.drawingLine.segments.splice(
             this.drawingLine.segments.length - 1,
             1
@@ -136,7 +135,7 @@ export class LineTool extends CanvasToolBase<LineToolType> {
             value: [],
           },
         ]);
-        this.drawingLine.closed = true;
+        this.drawingLine.closed = this.autoClose;
         this.canvas.dispatchEvent(
           new CustomEvent('hpc:newobject', {
             detail: this.drawingLine,