Press n or j to go to the next uncovered block, b, p or k for the previous block.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 | 18x | import { SpriteAlignment, Color, CC, Texture, SpriteMaterial, Sprite, } from "./WebGL"; import { Gradient } from "./Gradient"; //Adapted from the text sprite example from http://stemkoski.github.io/Three.js/index.html export let LabelCount = 0; // function for drawing rounded rectangles - for Label drawing function roundRect(ctx, x, y, w, h, r, drawBorder) { ctx.beginPath(); ctx.moveTo(x + r, y); ctx.lineTo(x + w - r, y); ctx.quadraticCurveTo(x + w, y, x + w, y + r); ctx.lineTo(x + w, y + h - r); ctx.quadraticCurveTo(x + w, y + h, x + w - r, y + h); ctx.lineTo(x + r, y + h); ctx.quadraticCurveTo(x, y + h, x, y + h - r); ctx.lineTo(x, y + r); ctx.quadraticCurveTo(x, y, x + r, y); ctx.closePath(); ctx.fill(); Iif (drawBorder) ctx.stroke(); } //do all the checks to figure out what color is desired function getColor(style, stylealpha?: any, init?: any) { var ret = init; Iif (typeof style != "undefined") { //convet regular colors if (style instanceof Color) ret = style.scaled(); else { //hex or name ret = CC.color(style); Iif (typeof ret.scaled != "undefined") { ret = ret.scaled(); //not already scaled to 255 } } } Iif (typeof stylealpha != "undefined") { ret.a = parseFloat(stylealpha); } return ret; } /** * Renderable labels * @constructor $3Dmol.Label * @param {string} tag - Label text * @param {LabelSpec} parameters Label style and font specifications */ export class Label { id: number; stylespec: any; canvas: HTMLCanvasElement; context: any; sprite: any; text: any; frame: any; constructor(text, parameters) { this.id = LabelCount++; this.stylespec = parameters || {}; this.canvas = document.createElement("canvas"); //todo: implement resizing canvas.. this.canvas.width = 134; this.canvas.height = 35; this.context = this.canvas.getContext("2d"); this.sprite = new Sprite(); this.text = text; this.frame = this.stylespec.frame; } getStyle() { return this.stylespec; } setContext() { var style = this.stylespec; var useScreen = typeof style.useScreen == "undefined" ? false : style.useScreen; var showBackground = style.showBackground; Iif (showBackground === "0" || showBackground === "false") showBackground = false; Iif (typeof showBackground == "undefined") showBackground = true; //default var font = style.font ? style.font : "sans-serif"; var fontSize = parseInt(style.fontSize) ? parseInt(style.fontSize) : 18; var fontColor = getColor(style.fontColor, style.fontOpacity, { r: 255, g: 255, b: 255, a: 1.0, }); var padding = style.padding ? style.padding : 4; var borderThickness = style.borderThickness ? style.borderThickness : 0; var backgroundColor = getColor( style.backgroundColor, style.backgroundOpacity, { r: 0, g: 0, b: 0, a: 1.0, } ); var borderColor = getColor( style.borderColor, style.borderOpacity, backgroundColor ); var position = style.position ? style.position : { x: -10, y: 1, z: 1, }; // Should labels always be in front of model? var inFront = style.inFront !== undefined ? style.inFront : true; Iif (inFront === "false" || inFront === "0") inFront = false; // clear canvas var spriteAlignment = style.alignment || SpriteAlignment.topLeft; Iif ( typeof spriteAlignment == "string" && spriteAlignment in SpriteAlignment ) { spriteAlignment = SpriteAlignment[spriteAlignment]; } var bold = ""; Iif (style.bold) bold = "bold "; this.context.font = bold + fontSize + "px " + font; var metrics = this.context.measureText(this.text); var textWidth = metrics.width; Iif (!showBackground) borderThickness = 0; var width = textWidth + 2.5 * borderThickness + 2 * padding; var height = fontSize * 1.25 + 2 * borderThickness + 2 * padding; // 1.25 is extra height factor for text below baseline: g,j,p,q. Iif (style.backgroundImage) { var img = style.backgroundImage; var w = style.backgroundWidth ? style.backgroundWidth : img.width; var h = style.backgroundHeight ? style.backgroundHeight : img.height; Iif (w > width) width = w; Iif (h > height) height = h; } this.canvas.width = width; this.canvas.height = height; this.context.clearRect(0, 0, this.canvas.width, this.canvas.height); bold = ""; Iif (style.bold) bold = "bold "; this.context.font = bold + fontSize + "px " + font; // background color this.context.fillStyle = "rgba(" + backgroundColor.r + "," + backgroundColor.g + "," + backgroundColor.b + "," + backgroundColor.a + ")"; // border color this.context.strokeStyle = "rgba(" + borderColor.r + "," + borderColor.g + "," + borderColor.b + "," + borderColor.a + ")"; Iif (style.backgroundGradient) { let gradient = this.context.createLinearGradient( 0, height / 2, width, height / 2 ); let g = Gradient.getGradient(style.backgroundGradient); let minmax = g.range(); let min = -1; let max = 1; Iif (minmax) { min = minmax[0]; max = minmax[1]; } let d = max - min; for (let i = 0; i < 1.01; i += 0.1) { let c = getColor(g.valueToHex(min + d * i)); let cname = "rgba(" + c.r + "," + c.g + "," + c.b + "," + c.a + ")"; gradient.addColorStop(i, cname); } this.context.fillStyle = gradient; } this.context.lineWidth = borderThickness; Iif (showBackground) { roundRect( this.context, borderThickness, borderThickness, width - 2 * borderThickness, height - 2 * borderThickness, 6, borderThickness > 0 ); } Iif (style.backgroundImage) { let img = style.backgroundImage; let w = style.backgroundWidth ? style.backgroundWidth : img.width; let h = style.backgroundHeight ? style.backgroundHeight : img.height; this.context.drawImage(img, 0, 0, w, h); } // text color this.context.fillStyle = "rgba(" + fontColor.r + "," + fontColor.g + "," + fontColor.b + "," + fontColor.a + ")"; this.context.fillText( this.text, borderThickness + padding, fontSize + borderThickness + padding, textWidth ); // canvas contents will be used for a texture var texture = new Texture(this.canvas); texture.needsUpdate = true; this.sprite.material = new SpriteMaterial({ map: texture, useScreenCoordinates: useScreen, alignment: spriteAlignment, depthTest: !inFront, screenOffset: style.screenOffset || null, }); this.sprite.scale.set(1, 1, 1); this.sprite.position.set(position.x, position.y, position.z); } // clean up material and texture dispose() { Iif (this.sprite.material.map !== undefined) this.sprite.material.map.dispose(); Iif (this.sprite.material !== undefined) this.sprite.material.dispose(); } } |