Removed the stylus folder and added stylus.js with doctest to lib/pixi
This commit is contained in:
parent
da212ac188
commit
af932a9911
440
dist/iwmlib.pixi.js
vendored
440
dist/iwmlib.pixi.js
vendored
@ -1402,6 +1402,8 @@
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Events$1.simulated = [];
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Events$1.simulationRunning = false;
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/* global PIXI TweenLite */
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/**
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* Callback for the button action.
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*
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@ -1559,7 +1561,7 @@
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}
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if (this.opts.style === 'link') {
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Object.assign(this.opts, {strokeAlpha: 0, strokeActiveAlpha: 0, fillAlpha: 0, fillActiveAlpha: 0});
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Object.assign(this.opts, { strokeAlpha: 0, strokeActiveAlpha: 0, fillAlpha: 0, fillActiveAlpha: 0 });
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}
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this._active = null;
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@ -1631,7 +1633,7 @@
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//-----------------
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this.button.on('pointerover', e => {
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this.capture(e);
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TweenLite.to([this.button, this.content], this.theme.fast, {alpha: .83, overwrite: 'none'});
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TweenLite.to([this.button, this.content], this.theme.fast, { alpha: .83, overwrite: 'none' });
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});
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this.button.on('pointermove', e => {
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@ -1640,12 +1642,13 @@
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this.button.on('pointerout', e => {
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this.capture(e);
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TweenLite.to([this.button, this.content], this.theme.fast, {alpha: 1, overwrite: 'none'});
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TweenLite.to([this.button, this.content], this.theme.fast, { alpha: 1, overwrite: 'none' });
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});
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// eslint-disable-next-line no-unused-vars
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this.button.on('pointerdown', e => {
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//this.capture(e)
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TweenLite.to([this.button, this.content], this.theme.fast, {alpha: .7, overwrite: 'none'});
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TweenLite.to([this.button, this.content], this.theme.fast, { alpha: .7, overwrite: 'none' });
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});
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this.button.on('pointerup', e => {
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@ -1658,7 +1661,7 @@
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this.opts.action.call(this, e, this);
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}
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TweenLite.to([this.button, this.content], this.theme.fast, {alpha: .83, overwrite: 'none'});
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TweenLite.to([this.button, this.content], this.theme.fast, { alpha: .83, overwrite: 'none' });
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if (this.opts.type === 'checkbox') {
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this.active = !this.active;
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@ -1681,9 +1684,9 @@
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//-----------------
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if (this.opts.tooltip) {
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if (typeof this.opts.tooltip === 'string') {
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this.tooltip = new Tooltip({object: this, content: this.opts.tooltip});
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this.tooltip = new Tooltip({ object: this, content: this.opts.tooltip });
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} else {
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this.opts.tooltip = Object.assign({}, {object: this}, this.opts.tooltip);
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this.opts.tooltip = Object.assign({}, { object: this }, this.opts.tooltip);
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this.tooltip = new Tooltip(this.opts.tooltip);
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}
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}
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@ -1698,7 +1701,7 @@
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offsetTop: 0
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});
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if (typeof this.opts.badge === 'string') {
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opts = Object.assign(opts, {content: this.opts.badge});
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opts = Object.assign(opts, { content: this.opts.badge });
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} else {
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opts = Object.assign(opts, this.opts.badge);
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}
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@ -13819,6 +13822,426 @@
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}
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}
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/* eslint-disable no-undef */
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class StylusCommand extends Object {
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constructor() {
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super();
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}
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do(stylus) {
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stylus.commandStack.push(this);
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}
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undo(stylus) {
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stylus.undoCommandStack.push(this);
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}
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redo(stylus) {
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this.do(stylus);
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}
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}
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class StrokeCommand extends StylusCommand {
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constructor(stroke) {
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super();
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this.stroke = stroke;
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}
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do(stylus) {
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if (this.stroke.length > 0) {
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super.do(stylus);
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stylus.stroke = [];
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stylus.strokes.push(this.stroke);
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stylus.redraw();
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stylus.changed();
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}
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}
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undo(stylus) {
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if (this.stroke.length > 0) {
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super.undo(stylus);
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stylus.strokes.pop();
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stylus.redraw();
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stylus.changed();
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}
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}
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}
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class ClearCommand extends StylusCommand {
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do(stylus) {
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// Clears the command stack
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stylus.commandStack = [];
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super.do(stylus);
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this.strokes = stylus.strokes;
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stylus.stroke = [];
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stylus.strokes = [];
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stylus.redraw();
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stylus.changed();
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}
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undo(stylus) {
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//super.undo(stylus) // Clear all is not redoable
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stylus.stroke = [];
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stylus.strokes = this.strokes;
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stylus.redraw();
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stylus.changed();
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}
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}
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class Stylus extends PIXI.Graphics {
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constructor({ width = window.innerWidth,
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height = window.innerHeight,
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interactive = true,
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color = 0x000000,
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tiltX = 0,
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tiltY = 0,
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backgroundAlpha = 1,
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backgroundFill = 0xFFFFFF,
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colorAlpha = 1,
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captureEvents = true,
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acceptMouseEvents = true } = {}) {
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super();
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this.activePointers = 0;
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this.wantedWidth = width;
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this.wantedHeight = height;
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this.backgroundAlpha = backgroundAlpha;
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this.backgroundFill = backgroundFill;
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this.colorAlpha = colorAlpha;
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this.color = color;
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this.interactive = interactive;
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this.debug = false;
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this.tiltX = tiltX; // degrees -90 ... 90
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this.tiltY = tiltY; // degrees -90 ... 90
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this.captureEvents = captureEvents;
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this.commandStack = [];
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this.undoCommandStack = [];
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this.strokes = [];
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this.stroke = [];
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this.minStrokeLength = 4;
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if (captureEvents)
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this.registerEventHandler(acceptMouseEvents);
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this.drawBackground();
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}
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drawBackground() {
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this.clear();
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this.beginFill(this.backgroundFill, this.backgroundAlpha);
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this.drawRect(0, 0, this.wantedWidth, this.wantedHeight);
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this.endFill();
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}
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touchToPoint(t) {
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return { x: t.clientX, y: t.clientY }
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}
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isStylusPointer(event) {
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let identifier = event.data.identifier;
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if (typeof (event.data.originalEvent.changedTouches) !== 'undefined') {
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for (let touch of event.data.originalEvent.changedTouches) {
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if (touch.identifier === identifier && touch.touchType === 'stylus') {
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this.tiltX = Angle.radian2degree(touch.azimuthAngle);
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this.tiltY = 90.0 - Angle.radian2degree(touch.altitudeAngle);
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return true
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}
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}
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}
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// UO: Not tested since the Sprot delivered "mouse" events to Chrome
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if (event.data.originalEvent.pointerType === 'pen') {
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this.tiltX = event.data.originalEvent.tiltX;
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this.tiltY = event.data.originalEvent.tiltY;
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return true
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}
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return false
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}
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isStylusTouch(event) {
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let identifier = event.data.identifier;
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if (typeof (event.data.originalEvent.changedTouches) !== 'undefined') {
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for (let touch of event.data.originalEvent.changedTouches) {
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if (touch.identifier === identifier && touch.pointerType === 'touch') {
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return true
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}
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}
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}
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return false
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}
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getPointerID(event) {
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let identifier = event.data.identifier;
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for (let touch of event.data.originalEvent.changedTouches) {
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if (touch.identifier === identifier) {
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return touch.pointerId
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}
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}
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}
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singlePointer() {
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return this.activePointers == 1
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}
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registerEventHandler() {
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window.addEventListener('keydown', (e) => {
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switch (e.keyCode) {
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case 38: // up arrow
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this.tiltX += 5;
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break
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case 40: // down arrow
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this.tiltX -= 5;
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break
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case 37: // left arrow
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this.tiltY -= 5;
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break
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case 39: // right arrow
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this.tiltY += 5;
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break
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}
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if (this.debug) console.log('keydown', e.keyCode, this.tiltX, this.tiltY);
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});
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this.on('pointerdown', (e) => {
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if (this.debug) console.log('pointerdown', e);
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if (this.eventInside(e)) {
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this.activePointers += 1;
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if (this.singlePointer()) {
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this.startStroke(this.toStroke(e));
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}
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}
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});
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this.on('pointermove', (e) => {
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if (Events$1.isPointerDown(e.data.originalEvent) || this.isStylusPointer(e) || this.isStylusTouch(e)) {
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if (this.debug) console.log('pointermove', e, this.eventInside(e));
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if (this.eventInside(e) && this.singlePointer())
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this.moveStroke(this.toStroke(e));
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}
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});
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this.on('pointerup', (e) => {
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if (this.eventInside(e)) {
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if (this.activePointers > 0) {
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this.activePointers -= 1;
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this.endStroke(this.toStroke(e));
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}
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}
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if (this.debug) console.log('pointerup', this.activePointers);
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});
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this.on('pointerleave', (e) => {
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if (this.activePointers > 0) {
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this.activePointers -= 1;
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}
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this.endStroke(this.toStroke(e));
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});
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this.on('pointercancel', (e) => {
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if (this.activePointers > 0) {
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this.activePointers -= 1;
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}
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this.endStroke(this.toStroke(e));
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});
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}
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undoable() {
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return this.commandStack.length > 0
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}
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redoable() {
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return this.undoCommandStack.length > 0
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}
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undo() {
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if (this.undoable()) {
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let cmd = this.commandStack.pop();
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cmd.undo(this);
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}
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}
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redo() {
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if (this.redoable()) {
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let cmd = this.undoCommandStack.pop();
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cmd.redo(this);
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}
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}
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eventInside(event) {
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let local = this.toLocal(event.data.global);
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for (let child of this.children) {
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let r = child.getBounds();
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if (r.contains(local.x, local.y)) {
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console.log('Child touched');
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return false
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}
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}
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if (local.x < 0 || local.x > this.wantedWidth)
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return false
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if (local.y < 0 || local.y > this.wantedHeight)
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return false
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event.stopPropagation();
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// if (this.debug) console.log('stopPropagation', event)
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if (event.data.originalEvent.claimedByScatter) {
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return false
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}
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return true
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}
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toLocalPoint(event) {
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return this.toLocal(event.data.global)
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}
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toStroke(event) {
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let local = this.toLocalPoint(event);
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let x = Math.max(0, Math.min(local.x, this.wantedWidth));
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let y = Math.max(0, Math.min(local.y, this.wantedHeight));
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let desc = {
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x, y,
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pressure: event.pressure || null,
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tiltX: this.tiltX, tiltY: this.tiltY,
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color: this.color
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};
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return desc
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}
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startStroke(info) {
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this.stroke = [info];
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this.redraw();
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}
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moveStroke(info) {
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this.stroke.push(info);
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this.redraw();
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}
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// eslint-disable-next-line no-unused-vars
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endStroke(info) {
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if (this.stroke.length >= this.minStrokeLength) {
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let cmd = new StrokeCommand(this.stroke);
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cmd.do(this);
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}
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}
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tiltToLineWidth(value) {
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return Math.round(Math.abs(value / 10) + 1)
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}
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drawStroke(stroke) {
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if (stroke.length) {
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let start = stroke[0];
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this.beginFill(0, 0);
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this.moveTo(start.x, start.y);
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for (let i = 1; i < stroke.length; i++) {
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let info = stroke[i];
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this.lineStyle(this.tiltToLineWidth(info.tiltY),
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info.color, this.colorAlpha);
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this.lineTo(info.x, info.y);
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}
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this.endFill();
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}
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}
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drawTouch(point) {
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this.beginFill(0, 0);
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this.drawCircle(point.x, point.y, 22);
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this.endFill();
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}
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drawStrokes() {
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this.drawBackground();
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this.lineStyle(1.0, 0xFF0000, 1);
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for (let stroke of this.iterStrokes()) {
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this.drawStroke(stroke);
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}
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}
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redraw() {
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this.drawStrokes();
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}
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// Can be overwritten if different levels of strokes are necessary
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*iterStrokes() {
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for (let stroke of this.strokes) {
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yield stroke;
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}
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yield this.stroke;
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}
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changed() {
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// Can be overwritten
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}
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clearAll() {
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let cmd = new ClearCommand();
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cmd.do(this);
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}
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normalizeInfo(info) {
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let { x, y, pressure, tiltX, tiltY, color } = info;
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x /= this.wantedWidth;
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y /= this.wantedHeight;
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return { x, y, pressure, tiltX, tiltY, color }
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}
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denormalizeInfo(info) {
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let { x, y, pressure, tiltX, tiltY, color } = info;
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x = x * this.wantedWidth;
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y = y * this.wantedHeight;
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return { x, y, pressure, tiltX, tiltY, color }
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}
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// Convert strokes into an object that can be stored in an Indexed DB.
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// Returns normalized strokes
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toObject() {
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let result = [];
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for (let stroke of this.strokes) {
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let normalized = [];
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for (let info of stroke) {
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normalized.push(this.normalizeInfo(info));
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}
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result.push(normalized);
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}
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return result
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}
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// Read normalized strokes from an object from an Indexed DB.
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fromObject(normalizedStrokes) {
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this.strokes = [];
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for (let stroke of normalizedStrokes) {
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let denormalized = [];
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for (let info of stroke) {
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denormalized.push(this.denormalizeInfo(info));
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}
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this.strokes.push(denormalized);
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}
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}
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// Convert strokes into a JSON object that can be stored in an Indexed DB
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toJSON() {
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return JSON.stringify(this.toObject())
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}
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// Convert strokes from a JSON
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fromJSON(json) {
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this.fromObject(JSON.parse(json));
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}
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// Returns a set of used colors
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usedColors() {
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let used = new Set();
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for (let info of this.stroke) {
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used.add(info.color);
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}
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for (let stroke of this.strokes) {
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for (let info of stroke) {
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used.add(info.color);
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}
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}
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return used.values()
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}
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}
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/**
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* Callback for the switch action.
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*
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@ -14997,6 +15420,7 @@
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window.ButtonGroup = ButtonGroup;
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window.Scrollview = Scrollview;
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window.Slider = Slider;
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window.Stylus = Stylus;
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window.Switch = Switch;
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window.Popup = Popup;
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window.PopupMenu = PopupMenu$1;
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@ -12,6 +12,7 @@ import Button from './button.js'
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import ButtonGroup from './buttongroup.js'
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import Scrollview from './scrollview.js'
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import Slider from './slider.js'
|
||||
import Stylus from './stylus.js'
|
||||
import Switch from './switch.js'
|
||||
import Popup from './popup.js'
|
||||
import PopupMenu from './popupmenu.js'
|
||||
@ -44,6 +45,7 @@ window.Button = Button
|
||||
window.ButtonGroup = ButtonGroup
|
||||
window.Scrollview = Scrollview
|
||||
window.Slider = Slider
|
||||
window.Stylus = Stylus
|
||||
window.Switch = Switch
|
||||
window.Popup = Popup
|
||||
window.PopupMenu = PopupMenu
|
||||
|
||||
149
lib/pixi/stylus.html
Normal file
149
lib/pixi/stylus.html
Normal file
@ -0,0 +1,149 @@
|
||||
<!doctype html>
|
||||
<html lang="en">
|
||||
|
||||
<head>
|
||||
<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
|
||||
|
||||
<title>PIXI Stylus</title>
|
||||
|
||||
<link rel="stylesheet" href="../3rdparty/highlight/styles/default.css">
|
||||
<link rel="stylesheet" href="../../css/doctest.css">
|
||||
|
||||
<script src="../3rdparty/highlight/highlight.pack.js"></script>
|
||||
|
||||
<script src="../../dist/iwmlib.3rdparty.js"></script>
|
||||
<script src="../../dist/iwmlib.js"></script>
|
||||
<script src="../../dist/iwmlib.pixi.js"></script>
|
||||
</head>
|
||||
|
||||
<body onload="Doctest.run()">
|
||||
<h1>Stylus</h1>
|
||||
<p>The Stylus class extends the PIXI.Graphics class and allows to draw into
|
||||
a graphics object. Select the pen tool in the following example app and draw into the canvas.
|
||||
</p>
|
||||
<canvas id="canvas" style="border: 1px solid gray; width: 640px; height: 480px;" class="interactive"></canvas>
|
||||
<p>
|
||||
What you should see: A blank sytlus canvas.
|
||||
</p>
|
||||
<script class="doctest">
|
||||
class StylusApp extends PIXIApp {
|
||||
|
||||
sceneFactory() {
|
||||
return new Stylus(this.renderer)
|
||||
}
|
||||
|
||||
setup() {
|
||||
let buttonColor = 0x666666
|
||||
super.setup()
|
||||
|
||||
this.tools = new ButtonGroup({
|
||||
type: 'checkbox',
|
||||
margin: 0,
|
||||
x: 16,
|
||||
y: 16,
|
||||
fill: buttonColor,
|
||||
buttons: [{
|
||||
icon: 'edit',
|
||||
iconColorActive: 0xFFFF00,
|
||||
action: (event, button) => this.toggleEditMode()
|
||||
},
|
||||
{
|
||||
icon: 'undo',
|
||||
action: (event, button) => this.undo(button)
|
||||
},
|
||||
{
|
||||
icon: 'redo',
|
||||
action: (event, button) => this.redo(button)
|
||||
},
|
||||
{
|
||||
icon: 'delete',
|
||||
action: (event, button) => this.clear(button)
|
||||
}
|
||||
]
|
||||
})
|
||||
this.scene.addChild(this.tools)
|
||||
|
||||
let defaults = {
|
||||
icon: 'brightness_1',
|
||||
action: (event, button) => this.selectColor(button),
|
||||
fillAlpha: 0,
|
||||
strokeAlpha: 0,
|
||||
fillActiveAlpha: 0,
|
||||
strokeActiveAlpha: 0
|
||||
}
|
||||
|
||||
this.palette = new ButtonGroup({
|
||||
type: "radio",
|
||||
x: 200,
|
||||
y: 16,
|
||||
margin: 0,
|
||||
strokeAlpha: 0,
|
||||
fill: buttonColor,
|
||||
buttons: [
|
||||
Object.assign({}, defaults, {
|
||||
iconColor: 0x111111,
|
||||
iconColorActive: 0x111111
|
||||
}), // tooltip: "Black",
|
||||
Object.assign({}, defaults, {
|
||||
iconColor: 0xFFFF00,
|
||||
iconColorActive: 0xFFFF00
|
||||
}), // tooltip: "Yellow",
|
||||
Object.assign({}, defaults, {
|
||||
iconColor: 0x00FF00,
|
||||
iconColorActive: 0x00FF00
|
||||
}), // tooltip: "Green",
|
||||
Object.assign({}, defaults, {
|
||||
iconColor: 0xFF00FF,
|
||||
iconColorActive: 0xFF00FF
|
||||
}) // tooltip: "Violet",
|
||||
]
|
||||
})
|
||||
this.scene.addChild(this.palette)
|
||||
this.scene.interactive = false
|
||||
}
|
||||
|
||||
toggleEditMode() {
|
||||
this.scene.interactive = !this.scene.interactive
|
||||
|
||||
console.log("this.scene.interactive")
|
||||
}
|
||||
|
||||
selectColor(button) {
|
||||
this.scene.color = button.opts.iconColor
|
||||
}
|
||||
|
||||
undo(button) {
|
||||
this.scene.undo()
|
||||
setTimeout(() => {
|
||||
button.active = false
|
||||
}, 200)
|
||||
}
|
||||
|
||||
redo(button) {
|
||||
this.scene.redo()
|
||||
setTimeout(() => {
|
||||
button.active = false
|
||||
}, 200)
|
||||
}
|
||||
|
||||
clear(button) {
|
||||
this.scene.clearAll()
|
||||
setTimeout(() => {
|
||||
button.active = false
|
||||
}, 200)
|
||||
}
|
||||
}
|
||||
|
||||
const app = new StylusApp({
|
||||
view: canvas,
|
||||
width: 640,
|
||||
height: 480,
|
||||
autoResize: false
|
||||
})
|
||||
window.app = app
|
||||
app.setup()
|
||||
app.run()
|
||||
|
||||
|
||||
</script>
|
||||
</body>
|
||||
422
lib/pixi/stylus.js
Executable file
422
lib/pixi/stylus.js
Executable file
@ -0,0 +1,422 @@
|
||||
/* eslint-disable no-undef */
|
||||
/* eslint-disable no-console */
|
||||
import Events from '../events.js'
|
||||
import { Angle } from '../utils.js'
|
||||
|
||||
class StylusCommand extends Object {
|
||||
|
||||
constructor() {
|
||||
super()
|
||||
}
|
||||
|
||||
do(stylus) {
|
||||
stylus.commandStack.push(this)
|
||||
}
|
||||
|
||||
undo(stylus) {
|
||||
stylus.undoCommandStack.push(this)
|
||||
}
|
||||
|
||||
redo(stylus) {
|
||||
this.do(stylus)
|
||||
}
|
||||
}
|
||||
|
||||
class StrokeCommand extends StylusCommand {
|
||||
|
||||
constructor(stroke) {
|
||||
super()
|
||||
this.stroke = stroke
|
||||
}
|
||||
|
||||
do(stylus) {
|
||||
if (this.stroke.length > 0) {
|
||||
super.do(stylus)
|
||||
stylus.stroke = []
|
||||
stylus.strokes.push(this.stroke)
|
||||
stylus.redraw()
|
||||
stylus.changed()
|
||||
}
|
||||
}
|
||||
|
||||
undo(stylus) {
|
||||
if (this.stroke.length > 0) {
|
||||
super.undo(stylus)
|
||||
stylus.strokes.pop()
|
||||
stylus.redraw()
|
||||
stylus.changed()
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
class ClearCommand extends StylusCommand {
|
||||
|
||||
do(stylus) {
|
||||
// Clears the command stack
|
||||
stylus.commandStack = []
|
||||
super.do(stylus)
|
||||
this.strokes = stylus.strokes
|
||||
stylus.stroke = []
|
||||
stylus.strokes = []
|
||||
stylus.redraw()
|
||||
stylus.changed()
|
||||
}
|
||||
|
||||
undo(stylus) {
|
||||
//super.undo(stylus) // Clear all is not redoable
|
||||
stylus.stroke = []
|
||||
stylus.strokes = this.strokes
|
||||
stylus.redraw()
|
||||
stylus.changed()
|
||||
}
|
||||
}
|
||||
|
||||
|
||||
export default class Stylus extends PIXI.Graphics {
|
||||
|
||||
constructor({ width = window.innerWidth,
|
||||
height = window.innerHeight,
|
||||
interactive = true,
|
||||
color = 0x000000,
|
||||
tiltX = 0,
|
||||
tiltY = 0,
|
||||
backgroundAlpha = 1,
|
||||
backgroundFill = 0xFFFFFF,
|
||||
colorAlpha = 1,
|
||||
captureEvents = true,
|
||||
acceptMouseEvents = true } = {}) {
|
||||
super()
|
||||
this.activePointers = 0
|
||||
this.wantedWidth = width
|
||||
this.wantedHeight = height
|
||||
this.backgroundAlpha = backgroundAlpha
|
||||
this.backgroundFill = backgroundFill
|
||||
this.colorAlpha = colorAlpha
|
||||
this.color = color
|
||||
this.interactive = interactive
|
||||
this.debug = false
|
||||
this.tiltX = tiltX // degrees -90 ... 90
|
||||
this.tiltY = tiltY // degrees -90 ... 90
|
||||
this.captureEvents = captureEvents
|
||||
this.commandStack = []
|
||||
this.undoCommandStack = []
|
||||
this.strokes = []
|
||||
this.stroke = []
|
||||
this.minStrokeLength = 4
|
||||
if (captureEvents)
|
||||
this.registerEventHandler(acceptMouseEvents)
|
||||
this.drawBackground()
|
||||
}
|
||||
|
||||
drawBackground() {
|
||||
this.clear()
|
||||
this.beginFill(this.backgroundFill, this.backgroundAlpha)
|
||||
this.drawRect(0, 0, this.wantedWidth, this.wantedHeight)
|
||||
this.endFill()
|
||||
}
|
||||
|
||||
touchToPoint(t) {
|
||||
return { x: t.clientX, y: t.clientY }
|
||||
}
|
||||
|
||||
isStylusPointer(event) {
|
||||
let identifier = event.data.identifier
|
||||
if (typeof (event.data.originalEvent.changedTouches) !== 'undefined') {
|
||||
for (let touch of event.data.originalEvent.changedTouches) {
|
||||
if (touch.identifier === identifier && touch.touchType === 'stylus') {
|
||||
this.tiltX = Angle.radian2degree(touch.azimuthAngle)
|
||||
this.tiltY = 90.0 - Angle.radian2degree(touch.altitudeAngle)
|
||||
return true
|
||||
}
|
||||
}
|
||||
}
|
||||
// UO: Not tested since the Sprot delivered "mouse" events to Chrome
|
||||
if (event.data.originalEvent.pointerType === 'pen') {
|
||||
this.tiltX = event.data.originalEvent.tiltX
|
||||
this.tiltY = event.data.originalEvent.tiltY
|
||||
return true
|
||||
}
|
||||
return false
|
||||
}
|
||||
|
||||
isStylusTouch(event) {
|
||||
let identifier = event.data.identifier
|
||||
if (typeof (event.data.originalEvent.changedTouches) !== 'undefined') {
|
||||
for (let touch of event.data.originalEvent.changedTouches) {
|
||||
if (touch.identifier === identifier && touch.pointerType === 'touch') {
|
||||
return true
|
||||
}
|
||||
}
|
||||
}
|
||||
return false
|
||||
}
|
||||
|
||||
getPointerID(event) {
|
||||
let identifier = event.data.identifier
|
||||
for (let touch of event.data.originalEvent.changedTouches) {
|
||||
if (touch.identifier === identifier) {
|
||||
return touch.pointerId
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
singlePointer() {
|
||||
return this.activePointers == 1
|
||||
}
|
||||
|
||||
registerEventHandler() {
|
||||
window.addEventListener('keydown', (e) => {
|
||||
switch (e.keyCode) {
|
||||
case 38: // up arrow
|
||||
this.tiltX += 5
|
||||
break
|
||||
case 40: // down arrow
|
||||
this.tiltX -= 5
|
||||
break
|
||||
case 37: // left arrow
|
||||
this.tiltY -= 5
|
||||
break
|
||||
case 39: // right arrow
|
||||
this.tiltY += 5
|
||||
break
|
||||
}
|
||||
if (this.debug) console.log('keydown', e.keyCode, this.tiltX, this.tiltY)
|
||||
})
|
||||
|
||||
this.on('pointerdown', (e) => {
|
||||
if (this.debug) console.log('pointerdown', e)
|
||||
if (this.eventInside(e)) {
|
||||
this.activePointers += 1
|
||||
if (this.singlePointer()) {
|
||||
this.startStroke(this.toStroke(e))
|
||||
}
|
||||
}
|
||||
})
|
||||
|
||||
this.on('pointermove', (e) => {
|
||||
if (Events.isPointerDown(e.data.originalEvent) || this.isStylusPointer(e) || this.isStylusTouch(e)) {
|
||||
if (this.debug) console.log('pointermove', e, this.eventInside(e))
|
||||
if (this.eventInside(e) && this.singlePointer())
|
||||
this.moveStroke(this.toStroke(e))
|
||||
}
|
||||
})
|
||||
this.on('pointerup', (e) => {
|
||||
if (this.eventInside(e)) {
|
||||
if (this.activePointers > 0) {
|
||||
this.activePointers -= 1
|
||||
this.endStroke(this.toStroke(e))
|
||||
}
|
||||
}
|
||||
if (this.debug) console.log('pointerup', this.activePointers)
|
||||
})
|
||||
this.on('pointerleave', (e) => {
|
||||
if (this.activePointers > 0) {
|
||||
this.activePointers -= 1
|
||||
}
|
||||
this.endStroke(this.toStroke(e))
|
||||
})
|
||||
this.on('pointercancel', (e) => {
|
||||
if (this.activePointers > 0) {
|
||||
this.activePointers -= 1
|
||||
}
|
||||
this.endStroke(this.toStroke(e))
|
||||
})
|
||||
}
|
||||
|
||||
undoable() {
|
||||
return this.commandStack.length > 0
|
||||
}
|
||||
|
||||
redoable() {
|
||||
return this.undoCommandStack.length > 0
|
||||
}
|
||||
|
||||
undo() {
|
||||
if (this.undoable()) {
|
||||
let cmd = this.commandStack.pop()
|
||||
cmd.undo(this)
|
||||
}
|
||||
}
|
||||
|
||||
redo() {
|
||||
if (this.redoable()) {
|
||||
let cmd = this.undoCommandStack.pop()
|
||||
cmd.redo(this)
|
||||
}
|
||||
}
|
||||
|
||||
eventInside(event) {
|
||||
|
||||
let local = this.toLocal(event.data.global)
|
||||
for (let child of this.children) {
|
||||
let r = child.getBounds()
|
||||
if (r.contains(local.x, local.y)) {
|
||||
console.log('Child touched')
|
||||
return false
|
||||
}
|
||||
}
|
||||
if (local.x < 0 || local.x > this.wantedWidth)
|
||||
return false
|
||||
if (local.y < 0 || local.y > this.wantedHeight)
|
||||
return false
|
||||
event.stopPropagation()
|
||||
// if (this.debug) console.log('stopPropagation', event)
|
||||
if (event.data.originalEvent.claimedByScatter) {
|
||||
return false
|
||||
}
|
||||
return true
|
||||
}
|
||||
|
||||
toLocalPoint(event) {
|
||||
return this.toLocal(event.data.global)
|
||||
}
|
||||
|
||||
toStroke(event) {
|
||||
let local = this.toLocalPoint(event)
|
||||
let x = Math.max(0, Math.min(local.x, this.wantedWidth))
|
||||
let y = Math.max(0, Math.min(local.y, this.wantedHeight))
|
||||
let desc = {
|
||||
x, y,
|
||||
pressure: event.pressure || null,
|
||||
tiltX: this.tiltX, tiltY: this.tiltY,
|
||||
color: this.color
|
||||
}
|
||||
return desc
|
||||
}
|
||||
|
||||
startStroke(info) {
|
||||
this.stroke = [info]
|
||||
this.redraw()
|
||||
}
|
||||
|
||||
moveStroke(info) {
|
||||
this.stroke.push(info)
|
||||
this.redraw()
|
||||
}
|
||||
|
||||
// eslint-disable-next-line no-unused-vars
|
||||
endStroke(info) {
|
||||
if (this.stroke.length >= this.minStrokeLength) {
|
||||
let cmd = new StrokeCommand(this.stroke)
|
||||
cmd.do(this)
|
||||
}
|
||||
}
|
||||
|
||||
tiltToLineWidth(value) {
|
||||
return Math.round(Math.abs(value / 10) + 1)
|
||||
}
|
||||
|
||||
drawStroke(stroke) {
|
||||
if (stroke.length) {
|
||||
let start = stroke[0]
|
||||
this.beginFill(0, 0)
|
||||
this.moveTo(start.x, start.y)
|
||||
for (let i = 1; i < stroke.length; i++) {
|
||||
let info = stroke[i]
|
||||
this.lineStyle(this.tiltToLineWidth(info.tiltY),
|
||||
info.color, this.colorAlpha)
|
||||
this.lineTo(info.x, info.y)
|
||||
}
|
||||
this.endFill()
|
||||
}
|
||||
}
|
||||
|
||||
drawTouch(point) {
|
||||
this.beginFill(0, 0)
|
||||
this.drawCircle(point.x, point.y, 22)
|
||||
this.endFill()
|
||||
}
|
||||
|
||||
drawStrokes() {
|
||||
this.drawBackground()
|
||||
this.lineStyle(1.0, 0xFF0000, 1)
|
||||
for (let stroke of this.iterStrokes()) {
|
||||
this.drawStroke(stroke)
|
||||
}
|
||||
}
|
||||
|
||||
redraw() {
|
||||
this.drawStrokes()
|
||||
}
|
||||
|
||||
// Can be overwritten if different levels of strokes are necessary
|
||||
*iterStrokes() {
|
||||
for (let stroke of this.strokes) {
|
||||
yield stroke
|
||||
}
|
||||
yield this.stroke
|
||||
}
|
||||
|
||||
changed() {
|
||||
// Can be overwritten
|
||||
}
|
||||
|
||||
clearAll() {
|
||||
let cmd = new ClearCommand()
|
||||
cmd.do(this)
|
||||
}
|
||||
|
||||
normalizeInfo(info) {
|
||||
let { x, y, pressure, tiltX, tiltY, color } = info
|
||||
x /= this.wantedWidth
|
||||
y /= this.wantedHeight
|
||||
return { x, y, pressure, tiltX, tiltY, color }
|
||||
}
|
||||
|
||||
denormalizeInfo(info) {
|
||||
let { x, y, pressure, tiltX, tiltY, color } = info
|
||||
x = x * this.wantedWidth
|
||||
y = y * this.wantedHeight
|
||||
return { x, y, pressure, tiltX, tiltY, color }
|
||||
}
|
||||
|
||||
// Convert strokes into an object that can be stored in an Indexed DB.
|
||||
// Returns normalized strokes
|
||||
toObject() {
|
||||
let result = []
|
||||
for (let stroke of this.strokes) {
|
||||
let normalized = []
|
||||
for (let info of stroke) {
|
||||
normalized.push(this.normalizeInfo(info))
|
||||
}
|
||||
result.push(normalized)
|
||||
}
|
||||
return result
|
||||
}
|
||||
|
||||
// Read normalized strokes from an object from an Indexed DB.
|
||||
fromObject(normalizedStrokes) {
|
||||
this.strokes = []
|
||||
for (let stroke of normalizedStrokes) {
|
||||
let denormalized = []
|
||||
for (let info of stroke) {
|
||||
denormalized.push(this.denormalizeInfo(info))
|
||||
}
|
||||
this.strokes.push(denormalized)
|
||||
}
|
||||
}
|
||||
|
||||
// Convert strokes into a JSON object that can be stored in an Indexed DB
|
||||
toJSON() {
|
||||
return JSON.stringify(this.toObject())
|
||||
}
|
||||
|
||||
// Convert strokes from a JSON
|
||||
fromJSON(json) {
|
||||
this.fromObject(JSON.parse(json))
|
||||
}
|
||||
|
||||
// Returns a set of used colors
|
||||
usedColors() {
|
||||
let used = new Set()
|
||||
for (let info of this.stroke) {
|
||||
used.add(info.color)
|
||||
}
|
||||
for (let stroke of this.strokes) {
|
||||
for (let info of stroke) {
|
||||
used.add(info.color)
|
||||
}
|
||||
}
|
||||
return used.values()
|
||||
}
|
||||
}
|
||||
Loading…
Reference in New Issue
Block a user