fanruan
/
fineui
4
1
Fork 2
Code Issues 1 Pull Requests Releases Wiki Activity
Browse Source

Fixed merge conflict

es6
Zhenfei.Li-李振飞 2 years ago
parent
4e2a41bfb7 929649567a
commit
5fcb9f0eb0
15 changed files with 3252 additions and 3257 deletions
Whitespace
Show all changes Ignore whitespace when comparing lines Ignore changes in amount of whitespace Ignore changes in whitespace at EOL
Unified View
Diff Options
Show Stats Download Patch File Download Diff File
  1. 10
      src/core/index.js
  2. 4036
      src/core/structure/aes.js
  3. 103
      src/core/structure/aspect.js
  4. 216
      src/core/structure/base64.js
  5. 47
      src/core/structure/cache.js
  6. 212
      src/core/structure/cellSizeAndPositionManager.js
  7. 168
      src/core/structure/heap.js
  8. 13
      src/core/structure/index.js
  9. 116
      src/core/structure/linkedHashMap.js
  10. 38
      src/core/structure/lru.js
  11. 291
      src/core/structure/prefixIntervalTree.js
  12. 143
      src/core/structure/queue.js
  13. 121
      src/core/structure/sectionManager.js
  14. 934
      src/core/structure/tree.js
  15. 61
      src/core/structure/vector.js

10
src/core/index.js
Unescape View File

@ -1,4 +1,3 @@
import * as base from "./2.base"; import * as base from "./2.base";
import * as ob from "./3.ob"; import * as ob from "./3.ob";
import * as widget from "./4.widget"; import * as widget from "./4.widget";
@ -7,10 +6,11 @@ import * as action from "./action";
import * as behavior from "./behavior"; import * as behavior from "./behavior";
import * as controllers from "./controller"; import * as controllers from "./controller";
import * as func from "./func"; import * as func from "./func";
import { StyleLoaderManager } from "./loader/loader.style"; import * as structure from "./structure";
import {StyleLoaderManager} from "./loader/loader.style";
import "./h"; import "./h";
import { ShowListener } from "./listener/listener.show"; import {ShowListener} from "./listener/listener.show";
import { shortcut } from "./decorator"; import {shortcut} from "./decorator";
export * from "./2.base"; export * from "./2.base";
export * from "./3.ob"; export * from "./3.ob";
@ -20,6 +20,7 @@ export * from "./action";
export * from "./behavior"; export * from "./behavior";
export * from "./controller"; export * from "./controller";
export * from "./func"; export * from "./func";
export * from "./structure";
// 有了后删掉 // 有了后删掉
export const emptyFn = () => { }; export const emptyFn = () => { };
@ -42,4 +43,5 @@ Object.assign(BI, {
...func, ...func,
StyleLoaderManager, StyleLoaderManager,
ShowListener, ShowListener,
...structure,
}); });

4036
src/core/structure/aes.js
View File

File diff suppressed because it is too large Load Diff

103
src/core/structure/aspect.js
Unescape View File

@ -1,63 +1,58 @@
!(function () { function _aspect(type) {
function aspect (type) { return function (target, methodName, advice) {
return function (target, methodName, advice) { let exist = target[methodName],
var exist = target[methodName], dispatcher;
dispatcher;
if (!exist || exist.target != target) {
if (!exist || exist.target != target) { dispatcher = target[methodName] = function () {
dispatcher = target[methodName] = function () { // before methods
// before methods let beforeArr = dispatcher.before;
var beforeArr = dispatcher.before; let args = arguments, next;
var args = arguments, next; for (let l = beforeArr.length; l--;) {
for (var l = beforeArr.length; l--;) { next = beforeArr[l].advice.apply(this, args);
next = beforeArr[l].advice.apply(this, args); if (next === false) {
if (next === false) { return false;
return false;
}
args = next || args;
}
// target method
var rs = dispatcher.method.apply(this, args);
// after methods
var afterArr = dispatcher.after;
for (var i = 0, ii = afterArr.length; i < ii; i++) {
next = afterArr[i].advice.call(this, rs, args);
if (rs === false) {
return false;
}
args = next || args;
} }
return rs; args = next || args;
};
dispatcher.before = [];
dispatcher.after = [];
if (exist) {
dispatcher.method = exist;
} }
dispatcher.target = target; // target method
} let rs = dispatcher.method.apply(this, args);
// after methods
var aspectArr = (dispatcher || exist)[type]; let afterArr = dispatcher.after;
var obj = { for (let i = 0, ii = afterArr.length; i < ii; i++) {
advice: advice, next = afterArr[i].advice.call(this, rs, args);
_index: aspectArr.length, if (rs === false) {
remove: function () { return false;
aspectArr.splice(this._index, 1); }
args = next || args;
} }
return rs;
}; };
aspectArr.push(obj);
return obj; dispatcher.before = [];
dispatcher.after = [];
if (exist) {
dispatcher.method = exist;
}
dispatcher.target = target;
}
let aspectArr = (dispatcher || exist)[type];
let obj = {
advice: advice,
_index: aspectArr.length,
remove: function () {
aspectArr.splice(this._index, 1);
},
}; };
} aspectArr.push(obj);
BI.aspect = { return obj;
before: aspect("before"),
after: aspect("after")
}; };
}
return BI.aspect; export const aspect = {
before: _aspect("before"),
})(); after: _aspect("after"),
};

216
src/core/structure/base64.js
Unescape View File

@ -1,130 +1,132 @@
const _keyStr = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/=";
!(function () {
var _keyStr = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/="; // private method for UTF-8 encoding
const _utf8_encode = function (string) {
string = string.replace(/\r\n/g, "\n");
let utftext = "";
for (let n = 0; n < string.length; n++) {
// private method for UTF-8 encoding const c = string.charCodeAt(n);
var _utf8_encode = function (string) {
string = string.replace(/\r\n/g, "\n");
var utftext = "";
for (var n = 0; n < string.length; n++) {
var c = string.charCodeAt(n);
if (c < 128) {
utftext += String.fromCharCode(c);
} else if ((c > 127) && (c < 2048)) {
utftext += String.fromCharCode((c >> 6) | 192);
utftext += String.fromCharCode((c & 63) | 128);
} else {
utftext += String.fromCharCode((c >> 12) | 224);
utftext += String.fromCharCode(((c >> 6) & 63) | 128);
utftext += String.fromCharCode((c & 63) | 128);
}
if (c < 128) {
utftext += String.fromCharCode(c);
} else if ((c > 127) && (c < 2048)) {
utftext += String.fromCharCode((c >> 6) | 192);
utftext += String.fromCharCode((c & 63) | 128);
} else {
utftext += String.fromCharCode((c >> 12) | 224);
utftext += String.fromCharCode(((c >> 6) & 63) | 128);
utftext += String.fromCharCode((c & 63) | 128);
} }
return utftext; }
};
return utftext;
// private method for UTF-8 decoding };
var _utf8_decode = function (utftext) {
var string = ""; // private method for UTF-8 decoding
var i = 0; const _utf8_decode = function (utftext) {
var c = 0, c3 = 0, c2 = 0; let string = "";
let i = 0;
while (i < utftext.length) { let c = 0, c3 = 0, c2 = 0;
c = utftext.charCodeAt(i); while (i < utftext.length) {
if (c < 128) { c = utftext.charCodeAt(i);
string += String.fromCharCode(c);
i++; if (c < 128) {
} else if ((c > 191) && (c < 224)) { string += String.fromCharCode(c);
c2 = utftext.charCodeAt(i + 1); i++;
string += String.fromCharCode(((c & 31) << 6) | (c2 & 63)); } else if ((c > 191) && (c < 224)) {
i += 2; c2 = utftext.charCodeAt(i + 1);
} else { string += String.fromCharCode(((c & 31) << 6) | (c2 & 63));
c2 = utftext.charCodeAt(i + 1); i += 2;
c3 = utftext.charCodeAt(i + 2); } else {
string += String.fromCharCode(((c & 15) << 12) | ((c2 & 63) << 6) | (c3 & 63)); c2 = utftext.charCodeAt(i + 1);
i += 3; c3 = utftext.charCodeAt(i + 2);
} string += String.fromCharCode(((c & 15) << 12) | ((c2 & 63) << 6) | (c3 & 63));
i += 3;
} }
return string;
};
BI._.extend(BI, {
encode: function (input) {
var output = "";
var chr1, chr2, chr3, enc1, enc2, enc3, enc4;
var i = 0;
input = _utf8_encode(input);
while (i < input.length) { }
return string;
chr1 = input.charCodeAt(i++); };
chr2 = input.charCodeAt(i++);
chr3 = input.charCodeAt(i++); /**
* base64 encode
enc1 = chr1 >> 2; * @param input
enc2 = ((chr1 & 3) << 4) | (chr2 >> 4); * @returns {string}
enc3 = ((chr2 & 15) << 2) | (chr3 >> 6); */
enc4 = chr3 & 63; export function encode(input) {
let output = "";
if (isNaN(chr2)) { let chr1, chr2, chr3, enc1, enc2, enc3, enc4;
enc3 = enc4 = 64; let i = 0;
} else if (isNaN(chr3)) {
enc4 = 64; input = _utf8_encode(input);
}
while (i < input.length) {
chr1 = input.charCodeAt(i++);
chr2 = input.charCodeAt(i++);
chr3 = input.charCodeAt(i++);
enc1 = chr1 >> 2;
enc2 = ((chr1 & 3) << 4) | (chr2 >> 4);
enc3 = ((chr2 & 15) << 2) | (chr3 >> 6);
enc4 = chr3 & 63;
if (isNaN(chr2)) {
enc3 = enc4 = 64;
} else if (isNaN(chr3)) {
enc4 = 64;
}
output = output + _keyStr.charAt(enc1) + _keyStr.charAt(enc2) + _keyStr.charAt(enc3) + _keyStr.charAt(enc4); output = output + _keyStr.charAt(enc1) + _keyStr.charAt(enc2) + _keyStr.charAt(enc3) + _keyStr.charAt(enc4);
} }
return output; return output;
}, }
// public method for decoding /**
decode: function (input) { * base64 decode
var output = ""; * @param input
var chr1, chr2, chr3; * @returns {string}
var enc1, enc2, enc3, enc4; */
var i = 0; export function decode(input) {
let output = "";
let chr1, chr2, chr3;
let enc1, enc2, enc3, enc4;
let i = 0;
input = input.replace(/[^A-Za-z0-9\+\/\=]/g, ""); input = input.replace(/[^A-Za-z0-9\+\/\=]/g, "");
while (i < input.length) { while (i < input.length) {
enc1 = _keyStr.indexOf(input.charAt(i++)); enc1 = _keyStr.indexOf(input.charAt(i++));
enc2 = _keyStr.indexOf(input.charAt(i++)); enc2 = _keyStr.indexOf(input.charAt(i++));
enc3 = _keyStr.indexOf(input.charAt(i++)); enc3 = _keyStr.indexOf(input.charAt(i++));
enc4 = _keyStr.indexOf(input.charAt(i++)); enc4 = _keyStr.indexOf(input.charAt(i++));
chr1 = (enc1 << 2) | (enc2 >> 4); chr1 = (enc1 << 2) | (enc2 >> 4);
chr2 = ((enc2 & 15) << 4) | (enc3 >> 2); chr2 = ((enc2 & 15) << 4) | (enc3 >> 2);
chr3 = ((enc3 & 3) << 6) | enc4; chr3 = ((enc3 & 3) << 6) | enc4;
output = output + String.fromCharCode(chr1); output = output + String.fromCharCode(chr1);
if (enc3 != 64) { if (enc3 != 64) {
output = output + String.fromCharCode(chr2); output = output + String.fromCharCode(chr2);
} }
if (enc4 != 64) { if (enc4 != 64) {
output = output + String.fromCharCode(chr3); output = output + String.fromCharCode(chr3);
} }
} }
output = _utf8_decode(output); output = _utf8_decode(output);
return output; return output;
} }
});
})();

47
src/core/structure/cache.js
Unescape View File

@ -1,43 +1,42 @@
export const Cache = {
BI.Cache = {
_prefix: "bi", _prefix: "bi",
setUsername: function (username) { setUsername: function (username) {
localStorage.setItem(BI.Cache._prefix + ".username", (username + "" || "").toUpperCase()); localStorage.setItem(Cache._prefix + ".username", (username + "" || "").toUpperCase());
}, },
getUsername: function () { getUsername: function () {
return localStorage.getItem(BI.Cache._prefix + ".username") || ""; return localStorage.getItem(Cache._prefix + ".username") || "";
}, },
_getKeyPrefix: function () { _getKeyPrefix: function () {
return BI.Cache.getUsername() + "." + BI.Cache._prefix + "."; return Cache.getUsername() + "." + Cache._prefix + ".";
}, },
_generateKey: function (key) { _generateKey: function (key) {
return BI.Cache._getKeyPrefix() + (key || ""); return Cache._getKeyPrefix() + (key || "");
}, },
getItem: function (key) { getItem: function (key) {
return localStorage.getItem(BI.Cache._generateKey(key)); return localStorage.getItem(Cache._generateKey(key));
}, },
setItem: function (key, value) { setItem: function (key, value) {
localStorage.setItem(BI.Cache._generateKey(key), value); localStorage.setItem(Cache._generateKey(key), value);
}, },
removeItem: function (key) { removeItem: function (key) {
localStorage.removeItem(BI.Cache._generateKey(key)); localStorage.removeItem(Cache._generateKey(key));
}, },
clear: function () { clear: function () {
for (var i = localStorage.length; i >= 0; i--) { for (let i = localStorage.length; i >= 0; i--) {
var key = localStorage.key(i); const key = localStorage.key(i);
if (key) { if (key) {
if (key.indexOf(BI.Cache._getKeyPrefix()) === 0) { if (key.indexOf(Cache._getKeyPrefix()) === 0) {
localStorage.removeItem(key); localStorage.removeItem(key);
} }
} }
} }
}, },
keys: function () { keys: function () {
var result = []; const result = [];
for (var i = localStorage.length; i >= 0; i--) { for (let i = localStorage.length; i >= 0; i--) {
var key = localStorage.key(i); const key = localStorage.key(i);
if (key) { if (key) {
var prefix = BI.Cache._getKeyPrefix(); const prefix = Cache._getKeyPrefix();
if (key.indexOf(prefix) === 0) { if (key.indexOf(prefix) === 0) {
result[result.length] = key.substring(prefix.length); result[result.length] = key.substring(prefix.length);
} }
@ -47,10 +46,10 @@ BI.Cache = {
}, },
addCookie: function (name, value, path, expiresHours) { addCookie: function (name, value, path, expiresHours) {
var cookieString = name + "=" + encodeURI(value); let cookieString = name + "=" + encodeURI(value);
// 判断是否设置过期时间 // 判断是否设置过期时间
if (expiresHours && expiresHours > 0) { if (expiresHours && expiresHours > 0) {
var date = new Date(); const date = new Date();
// expires是标准GMT格式时间，应该使用时间戳作为起始时间 // expires是标准GMT格式时间，应该使用时间戳作为起始时间
date.setTime(date.getTime() + expiresHours * 3600 * 1000); date.setTime(date.getTime() + expiresHours * 3600 * 1000);
cookieString = cookieString + "; expires=" + date.toUTCString(); cookieString = cookieString + "; expires=" + date.toUTCString();
@ -61,17 +60,19 @@ BI.Cache = {
document.cookie = cookieString; document.cookie = cookieString;
}, },
getCookie: function (name) { getCookie: function (name) {
var arr, reg = new RegExp("(^| )" + name + "=([^;]*)(;|$)"); let arr, reg = new RegExp("(^| )" + name + "=([^;]*)(;|$)");
if (arr = document.cookie.match(reg)) {return decodeURI(arr[2]);} if (arr = document.cookie.match(reg)) {
return decodeURI(arr[2]);
}
return null; return null;
}, },
deleteCookie: function (name, path) { deleteCookie: function (name, path) {
var date = new Date(); const date = new Date();
date.setTime(date.getTime() - 10000); date.setTime(date.getTime() - 10000);
var cookieString = name + "=v; expires=" + date.toUTCString(); let cookieString = name + "=v; expires=" + date.toUTCString();
if (path) { if (path) {
cookieString = cookieString + "; path=" + path; cookieString = cookieString + "; path=" + path;
} }
document.cookie = cookieString; document.cookie = cookieString;
} },
}; };

212
src/core/structure/cellSizeAndPositionManager.js
Unescape View File

@ -1,40 +1,40 @@
BI.CellSizeAndPositionManager = function (cellCount, cellSizeGetter, estimatedCellSize) { export class CellSizeAndPositionManager {
this._cellSizeGetter = cellSizeGetter;
this._cellCount = cellCount; constructor(cellCount, cellSizeGetter, estimatedCellSize) {
this._estimatedCellSize = estimatedCellSize; this._cellSizeGetter = cellSizeGetter;
this._cellSizeAndPositionData = {};
this._lastMeasuredIndex = -1;
};
BI.CellSizeAndPositionManager.prototype = {
constructor: BI.CellSizeAndPositionManager,
configure: function (cellCount, estimatedCellSize) {
this._cellCount = cellCount; this._cellCount = cellCount;
this._estimatedCellSize = estimatedCellSize; this._estimatedCellSize = estimatedCellSize;
}, this._cellSizeAndPositionData = {};
this._lastMeasuredIndex = -1;
}
getCellCount: function () { configure(cellCount, estimatedCellSize) {
this._cellCount = cellCount;
this._estimatedCellSize = estimatedCellSize;
}
getCellCount() {
return this._cellCount; return this._cellCount;
}, }
getEstimatedCellSize: function () { getEstimatedCellSize() {
return this._estimatedCellSize; return this._estimatedCellSize;
}, }
getLastMeasuredIndex: function () { getLastMeasuredIndex() {
return this._lastMeasuredIndex; return this._lastMeasuredIndex;
}, }
getSizeAndPositionOfCell: function (index) { getSizeAndPositionOfCell(index) {
if (index < 0 || index >= this._cellCount) { if (index < 0 || index >= this._cellCount) {
return; return;
} }
if (index > this._lastMeasuredIndex) { if (index > this._lastMeasuredIndex) {
var lastMeasuredCellSizeAndPosition = this.getSizeAndPositionOfLastMeasuredCell(); const lastMeasuredCellSizeAndPosition = this.getSizeAndPositionOfLastMeasuredCell();
var offset = lastMeasuredCellSizeAndPosition.offset + lastMeasuredCellSizeAndPosition.size; let offset = lastMeasuredCellSizeAndPosition.offset + lastMeasuredCellSizeAndPosition.size;
for (var i = this._lastMeasuredIndex + 1; i <= index; i++) { for (let i = this._lastMeasuredIndex + 1; i <= index; i++) {
var size = this._cellSizeGetter(i); const size = this._cellSizeGetter(i);
if (size == null || isNaN(size)) { if (size == null || isNaN(size)) {
continue; continue;
@ -42,7 +42,7 @@ BI.CellSizeAndPositionManager.prototype = {
this._cellSizeAndPositionData[i] = { this._cellSizeAndPositionData[i] = {
offset: offset, offset: offset,
size: size size: size,
}; };
offset += size; offset += size;
@ -51,28 +51,28 @@ BI.CellSizeAndPositionManager.prototype = {
this._lastMeasuredIndex = index; this._lastMeasuredIndex = index;
} }
return this._cellSizeAndPositionData[index]; return this._cellSizeAndPositionData[index];
}, }
getSizeAndPositionOfLastMeasuredCell: function () { getSizeAndPositionOfLastMeasuredCell() {
return this._lastMeasuredIndex >= 0 return this._lastMeasuredIndex >= 0
? this._cellSizeAndPositionData[this._lastMeasuredIndex] ? this._cellSizeAndPositionData[this._lastMeasuredIndex]
: { : {
offset: 0, offset: 0,
size: 0 size: 0,
}; };
}, }
getTotalSize: function () { getTotalSize() {
var lastMeasuredCellSizeAndPosition = this.getSizeAndPositionOfLastMeasuredCell(); const lastMeasuredCellSizeAndPosition = this.getSizeAndPositionOfLastMeasuredCell();
return lastMeasuredCellSizeAndPosition.offset + lastMeasuredCellSizeAndPosition.size + (this._cellCount - this._lastMeasuredIndex - 1) * this._estimatedCellSize; return lastMeasuredCellSizeAndPosition.offset + lastMeasuredCellSizeAndPosition.size + (this._cellCount - this._lastMeasuredIndex - 1) * this._estimatedCellSize;
}, }
getUpdatedOffsetForIndex: function (align, containerSize, currentOffset, targetIndex) { getUpdatedOffsetForIndex(align, containerSize, currentOffset, targetIndex) {
var datum = this.getSizeAndPositionOfCell(targetIndex); const datum = this.getSizeAndPositionOfCell(targetIndex);
var maxOffset = datum.offset; const maxOffset = datum.offset;
var minOffset = maxOffset - containerSize + datum.size; const minOffset = maxOffset - containerSize + datum.size;
var idealOffset; let idealOffset;
switch (align) { switch (align) {
case "start": case "start":
@ -89,25 +89,25 @@ BI.CellSizeAndPositionManager.prototype = {
break; break;
} }
var totalSize = this.getTotalSize(); const totalSize = this.getTotalSize();
return Math.max(0, Math.min(totalSize - containerSize, idealOffset)); return Math.max(0, Math.min(totalSize - containerSize, idealOffset));
}, }
getVisibleCellRange: function (containerSize, offset) { getVisibleCellRange(containerSize, offset) {
var totalSize = this.getTotalSize(); const totalSize = this.getTotalSize();
if (totalSize === 0) { if (totalSize === 0) {
return {}; return {};
} }
var maxOffset = offset + containerSize; const maxOffset = offset + containerSize;
var start = this._findNearestCell(offset); const start = this._findNearestCell(offset);
var datum = this.getSizeAndPositionOfCell(start); const datum = this.getSizeAndPositionOfCell(start);
offset = datum.offset + datum.size; offset = datum.offset + datum.size;
var stop = start; let stop = start;
while (offset < maxOffset && stop < this._cellCount - 1) { while (offset < maxOffset && stop < this._cellCount - 1) {
stop++; stop++;
@ -116,17 +116,17 @@ BI.CellSizeAndPositionManager.prototype = {
return { return {
start: start, start: start,
stop: stop stop: stop,
}; };
}, }
resetCell: function (index) { resetCell(index) {
this._lastMeasuredIndex = Math.min(this._lastMeasuredIndex, index - 1); this._lastMeasuredIndex = Math.min(this._lastMeasuredIndex, index - 1);
}, }
_binarySearch: function (high, low, offset) { _binarySearch(high, low, offset) {
var middle; let middle;
var currentOffset; let currentOffset;
while (low <= high) { while (low <= high) {
middle = low + Math.floor((high - low) / 2); middle = low + Math.floor((high - low) / 2);
@ -144,10 +144,10 @@ BI.CellSizeAndPositionManager.prototype = {
if (low > 0) { if (low > 0) {
return low - 1; return low - 1;
} }
}, }
_exponentialSearch: function (index, offset) { _exponentialSearch(index, offset) {
var interval = 1; let interval = 1;
while (index < this._cellCount && this.getSizeAndPositionOfCell(index).offset < offset) { while (index < this._cellCount && this.getSizeAndPositionOfCell(index).offset < offset) {
index += interval; index += interval;
@ -155,117 +155,115 @@ BI.CellSizeAndPositionManager.prototype = {
} }
return this._binarySearch(Math.min(index, this._cellCount - 1), Math.floor(index / 2), offset); return this._binarySearch(Math.min(index, this._cellCount - 1), Math.floor(index / 2), offset);
}, }
_findNearestCell: function (offset) { _findNearestCell(offset) {
if (isNaN(offset)) { if (isNaN(offset)) {
return; return;
} }
offset = Math.max(0, offset); offset = Math.max(0, offset);
var lastMeasuredCellSizeAndPosition = this.getSizeAndPositionOfLastMeasuredCell(); const lastMeasuredCellSizeAndPosition = this.getSizeAndPositionOfLastMeasuredCell();
var lastMeasuredIndex = Math.max(0, this._lastMeasuredIndex); const lastMeasuredIndex = Math.max(0, this._lastMeasuredIndex);
if (lastMeasuredCellSizeAndPosition.offset >= offset) { if (lastMeasuredCellSizeAndPosition.offset >= offset) {
return this._binarySearch(lastMeasuredIndex, 0, offset); return this._binarySearch(lastMeasuredIndex, 0, offset);
} }
return this._exponentialSearch(lastMeasuredIndex, offset); return this._exponentialSearch(lastMeasuredIndex, offset);
}
};
BI.ScalingCellSizeAndPositionManager = function (cellCount, cellSizeGetter, estimatedCellSize, maxScrollSize) { }
this._cellSizeAndPositionManager = new BI.CellSizeAndPositionManager(cellCount, cellSizeGetter, estimatedCellSize); }
this._maxScrollSize = maxScrollSize || 10000000;
};
BI.ScalingCellSizeAndPositionManager.prototype = { export class ScalingCellSizeAndPositionManager {
constructor: BI.ScalingCellSizeAndPositionManager, constructor(cellCount, cellSizeGetter, estimatedCellSize, maxScrollSize) {
this._cellSizeAndPositionManager = new CellSizeAndPositionManager(cellCount, cellSizeGetter, estimatedCellSize);
this._maxScrollSize = maxScrollSize || 10000000;
}
configure: function () { configure() {
this._cellSizeAndPositionManager.configure.apply(this._cellSizeAndPositionManager, arguments); this._cellSizeAndPositionManager.configure.apply(this._cellSizeAndPositionManager, arguments);
}, }
getCellCount: function () { getCellCount() {
return this._cellSizeAndPositionManager.getCellCount(); return this._cellSizeAndPositionManager.getCellCount();
}, }
getEstimatedCellSize: function () { getEstimatedCellSize() {
return this._cellSizeAndPositionManager.getEstimatedCellSize(); return this._cellSizeAndPositionManager.getEstimatedCellSize();
}, }
getLastMeasuredIndex: function () { getLastMeasuredIndex() {
return this._cellSizeAndPositionManager.getLastMeasuredIndex(); return this._cellSizeAndPositionManager.getLastMeasuredIndex();
}, }
getOffsetAdjustment: function (containerSize, offset) { getOffsetAdjustment(containerSize, offset) {
var totalSize = this._cellSizeAndPositionManager.getTotalSize(); const totalSize = this._cellSizeAndPositionManager.getTotalSize();
var safeTotalSize = this.getTotalSize(); const safeTotalSize = this.getTotalSize();
var offsetPercentage = this._getOffsetPercentage(containerSize, offset, safeTotalSize); const offsetPercentage = this._getOffsetPercentage(containerSize, offset, safeTotalSize);
return Math.round(offsetPercentage * (safeTotalSize - totalSize)); return Math.round(offsetPercentage * (safeTotalSize - totalSize));
}, }
getSizeAndPositionOfCell: function (index) { getSizeAndPositionOfCell(index) {
return this._cellSizeAndPositionManager.getSizeAndPositionOfCell(index); return this._cellSizeAndPositionManager.getSizeAndPositionOfCell(index);
}, }
getSizeAndPositionOfLastMeasuredCell: function () { getSizeAndPositionOfLastMeasuredCell() {
return this._cellSizeAndPositionManager.getSizeAndPositionOfLastMeasuredCell(); return this._cellSizeAndPositionManager.getSizeAndPositionOfLastMeasuredCell();
}, }
getTotalSize: function () { getTotalSize() {
return Math.min(this._maxScrollSize, this._cellSizeAndPositionManager.getTotalSize()); return Math.min(this._maxScrollSize, this._cellSizeAndPositionManager.getTotalSize());
}, }
getUpdatedOffsetForIndex: function (align, containerSize, currentOffset, targetIndex) { getUpdatedOffsetForIndex(align, containerSize, currentOffset, targetIndex) {
currentOffset = this._safeOffsetToOffset(containerSize, currentOffset); currentOffset = this._safeOffsetToOffset(containerSize, currentOffset);
var offset = this._cellSizeAndPositionManager.getUpdatedOffsetForIndex(align, containerSize, currentOffset, targetIndex); const offset = this._cellSizeAndPositionManager.getUpdatedOffsetForIndex(align, containerSize, currentOffset, targetIndex);
return this._offsetToSafeOffset(containerSize, offset); return this._offsetToSafeOffset(containerSize, offset);
}, }
getVisibleCellRange: function (containerSize, offset) { getVisibleCellRange(containerSize, offset) {
offset = this._safeOffsetToOffset(containerSize, offset); offset = this._safeOffsetToOffset(containerSize, offset);
return this._cellSizeAndPositionManager.getVisibleCellRange(containerSize, offset); return this._cellSizeAndPositionManager.getVisibleCellRange(containerSize, offset);
}, }
resetCell: function (index) { resetCell(index) {
this._cellSizeAndPositionManager.resetCell(index); this._cellSizeAndPositionManager.resetCell(index);
}, }
_getOffsetPercentage: function (containerSize, offset, totalSize) { _getOffsetPercentage(containerSize, offset, totalSize) {
return totalSize <= containerSize return totalSize <= containerSize
? 0 ? 0
: offset / (totalSize - containerSize); : offset / (totalSize - containerSize);
}, }
_offsetToSafeOffset: function (containerSize, offset) { _offsetToSafeOffset(containerSize, offset) {
var totalSize = this._cellSizeAndPositionManager.getTotalSize(); const totalSize = this._cellSizeAndPositionManager.getTotalSize();
var safeTotalSize = this.getTotalSize(); const safeTotalSize = this.getTotalSize();
if (totalSize === safeTotalSize) { if (totalSize === safeTotalSize) {
return offset; return offset;
} }
var offsetPercentage = this._getOffsetPercentage(containerSize, offset, totalSize); const offsetPercentage = this._getOffsetPercentage(containerSize, offset, totalSize);
return Math.round(offsetPercentage * (safeTotalSize - containerSize)); return Math.round(offsetPercentage * (safeTotalSize - containerSize));
},
_safeOffsetToOffset: function (containerSize, offset) { }
var totalSize = this._cellSizeAndPositionManager.getTotalSize();
var safeTotalSize = this.getTotalSize(); _safeOffsetToOffset(containerSize, offset) {
const totalSize = this._cellSizeAndPositionManager.getTotalSize();
const safeTotalSize = this.getTotalSize();
if (totalSize === safeTotalSize) { if (totalSize === safeTotalSize) {
return offset; return offset;
} }
var offsetPercentage = this._getOffsetPercentage(containerSize, offset, safeTotalSize); const offsetPercentage = this._getOffsetPercentage(containerSize, offset, safeTotalSize);
return Math.round(offsetPercentage * (totalSize - containerSize)); return Math.round(offsetPercentage * (totalSize - containerSize));
} }
}; }

168
src/core/structure/heap.js
Unescape View File

@ -1,115 +1,111 @@
function defaultComparator(a, b) {
return a < b;
}
(function () { export class Heap {
function defaultComparator (a, b) { constructor(items, comparator) {
return a < b;
}
BI.Heap = function (items, comparator) {
this._items = items || []; this._items = items || [];
this._size = this._items.length; this._size = this._items.length;
this._comparator = comparator || defaultComparator; this._comparator = comparator || defaultComparator;
this._heapify(); this._heapify();
}; }
BI.Heap.prototype = {
constructor: BI.Heap,
empty: function () {
return this._size === 0;
},
pop: function () { empty() {
if (this._size === 0) { return this._size === 0;
return; }
}
var elt = this._items[0]; pop() {
if (this._size === 0) {
return;
}
var lastElt = this._items.pop(); const elt = this._items[0];
this._size--;
if (this._size > 0) { const lastElt = this._items.pop();
this._items[0] = lastElt; this._size--;
this._sinkDown(0);
}
return elt; if (this._size > 0) {
}, this._items[0] = lastElt;
this._sinkDown(0);
}
push: function (item) { return elt;
this._items[this._size++] = item; }
this._bubbleUp(this._size - 1);
},
size: function () { push(item) {
return this._size; this._items[this._size++] = item;
}, this._bubbleUp(this._size - 1);
}
peek: function () { size() {
if (this._size === 0) { return this._size;
return; }
}
return this._items[0]; peek() {
}, if (this._size === 0) {
return;
}
_heapify: function () { return this._items[0];
for (var index = Math.floor((this._size + 1) / 2); index >= 0; index--) { }
this._sinkDown(index);
}
},
_bubbleUp: function (index) { _heapify() {
var elt = this._items[index]; for (let index = Math.floor((this._size + 1) / 2); index >= 0; index--) {
while (index > 0) { this._sinkDown(index);
var parentIndex = Math.floor((index + 1) / 2) - 1; }
var parentElt = this._items[parentIndex]; }
// if parentElt < elt, stop _bubbleUp(index) {
if (this._comparator(parentElt, elt)) { const elt = this._items[index];
return; while (index > 0) {
} const parentIndex = Math.floor((index + 1) / 2) - 1;
const parentElt = this._items[parentIndex];
// swap // if parentElt < elt, stop
this._items[parentIndex] = elt; if (this._comparator(parentElt, elt)) {
this._items[index] = parentElt; return;
index = parentIndex;
} }
},
_sinkDown: function (index) { // swap
var elt = this._items[index]; this._items[parentIndex] = elt;
this._items[index] = parentElt;
index = parentIndex;
}
}
while (true) { _sinkDown(index) {
var leftChildIndex = 2 * (index + 1) - 1; const elt = this._items[index];
var rightChildIndex = 2 * (index + 1);
var swapIndex = -1;
if (leftChildIndex < this._size) { while (true) {
var leftChild = this._items[leftChildIndex]; const leftChildIndex = 2 * (index + 1) - 1;
if (this._comparator(leftChild, elt)) { const rightChildIndex = 2 * (index + 1);
swapIndex = leftChildIndex; let swapIndex = -1;
}
}
if (rightChildIndex < this._size) { if (leftChildIndex < this._size) {
var rightChild = this._items[rightChildIndex]; const leftChild = this._items[leftChildIndex];
if (this._comparator(rightChild, elt)) { if (this._comparator(leftChild, elt)) {
if (swapIndex === -1 || swapIndex = leftChildIndex;
this._comparator(rightChild, this._items[swapIndex])) {
swapIndex = rightChildIndex;
}
}
} }
}
// if we don't have a swap, stop if (rightChildIndex < this._size) {
if (swapIndex === -1) { const rightChild = this._items[rightChildIndex];
return; if (this._comparator(rightChild, elt)) {
if (swapIndex === -1 ||
this._comparator(rightChild, this._items[swapIndex])) {
swapIndex = rightChildIndex;
}
} }
}
this._items[index] = this._items[swapIndex]; // if we don't have a swap, stop
this._items[swapIndex] = elt; if (swapIndex === -1) {
index = swapIndex; return;
} }
this._items[index] = this._items[swapIndex];
this._items[swapIndex] = elt;
index = swapIndex;
} }
}; }
})(); }

13
src/core/structure/index.js
Unescape View File

@ -0,0 +1,13 @@
export * from "./aes";
export * from "./aspect";
export * from "./base64";
export * from "./cache";
export * from "./cellSizeAndPositionManager";
export * from "./heap";
export * from "./linkedHashMap";
export * from "./lru";
export * from "./prefixIntervalTree";
export * from "./queue";
export * from "./sectionManager";
export * from "./tree";
export * from "./vector";

116
src/core/structure/linkedHashMap.js
Unescape View File

@ -1,72 +1,66 @@
export class LinkHashMap {
!(function () { constructor() {
BI.LinkHashMap = function () {
this.array = []; this.array = [];
this.map = {}; this.map = {};
}; }
BI.LinkHashMap.prototype = {
constructor: BI.LinkHashMap,
has: function (key) {
if (key in this.map) {
return true;
}
return false;
},
add: function (key, value) {
if (typeof key === "undefined") {
return;
}
if (key in this.map) {
this.map[key] = value;
} else {
this.array.push(key);
this.map[key] = value;
}
},
remove: function (key) { has(key) {
if (key in this.map) { return key in this.map;
delete this.map[key]; }
for (var i = 0; i < this.array.length; i++) {
if (this.array[i] == key) {
this.array.splice(i, 1);
break;
}
}
}
},
size: function () { add(key, value) {
return this.array.length; if (typeof key === "undefined") {
}, return;
}
if (key in this.map) {
this.map[key] = value;
} else {
this.array.push(key);
this.map[key] = value;
}
}
each: function (fn, scope) { remove(key) {
var scope = scope || window; if (key in this.map) {
var fn = fn || null; delete this.map[key];
if (fn == null || typeof (fn) !== "function") { for (let i = 0; i < this.array.length; i++) {
return; if (this.array[i] == key) {
} this.array.splice(i, 1);
for (var i = 0; i < this.array.length; i++) {
var key = this.array[i];
var value = this.map[key];
var re = fn.call(scope, key, value, i, this.array, this.map);
if (re == false) {
break; break;
} }
} }
}, }
}
get: function (key) { size() {
return this.map[key]; return this.array.length;
}, }
toArray: function () { each(fn, scope) {
var array = []; scope = scope || window;
this.each(function (key, value) { fn = fn || null;
array.push(value); if (fn == null || typeof (fn) !== "function") {
}); return;
return array;
} }
}; for (let i = 0; i < this.array.length; i++) {
})(); const key = this.array[i];
const value = this.map[key];
const re = fn.call(scope, key, value, i, this.array, this.map);
if (re == false) {
break;
}
}
}
get(key) {
return this.map[key];
}
toArray() {
const array = [];
this.each(function (key, value) {
array.push(value);
});
return array;
}
}

38
src/core/structure/lru.js
Unescape View File

@ -1,24 +1,21 @@
export class LRU {
!(function () { constructor(limit) {
BI.LRU = function (limit) {
this.size = 0; this.size = 0;
this.limit = limit; this.limit = limit;
this.head = this.tail = undefined; this.head = this.tail = undefined;
this._keymap = {}; this._keymap = {};
}; }
var p = BI.LRU.prototype;
p.put = function (key, value) { put(key, value) {
var removed; let removed;
if (this.size === this.limit) { if (this.size === this.limit) {
removed = this.shift(); removed = this.shift();
} }
var entry = this.get(key, true); let entry = this.get(key, true);
if (!entry) { if (!entry) {
entry = { entry = {
key: key key: key,
}; };
this._keymap[key] = entry; this._keymap[key] = entry;
if (this.tail) { if (this.tail) {
@ -33,10 +30,10 @@
entry.value = value; entry.value = value;
return removed; return removed;
}; }
p.shift = function () { shift() {
var entry = this.head; const entry = this.head;
if (entry) { if (entry) {
this.head = this.head.newer; this.head = this.head.newer;
this.head.older = undefined; this.head.older = undefined;
@ -45,11 +42,10 @@
this.size--; this.size--;
} }
return entry; return entry;
}; }
p.get = function (key, returnEntry) { get(key, returnEntry) {
var entry = this._keymap[key]; const entry = this._keymap[key];
if (entry === undefined) return; if (entry === undefined) return;
if (entry === this.tail) { if (entry === this.tail) {
return returnEntry return returnEntry
@ -78,9 +74,9 @@
return returnEntry return returnEntry
? entry ? entry
: entry.value; : entry.value;
}; }
p.has = function (key) { has(key) {
return this._keymap[key] != null; return this._keymap[key] != null;
}; }
})(); }

291
src/core/structure/prefixIntervalTree.js
Unescape View File

@ -1,32 +1,32 @@
// 线段树 // 线段树
(function () { const parent = function (node) {
var parent = function (node) { return Math.floor(node / 2);
return Math.floor(node / 2); };
};
const Int32Array = _global.Int32Array || function (size) {
var Int32Array = _global.Int32Array || function (size) { const xs = [];
var xs = []; for (let i = size - 1; i >= 0; --i) {
for (var i = size - 1; i >= 0; --i) { xs[i] = 0;
xs[i] = 0; }
} return xs;
return xs; };
};
const ceilLog2 = function (x) {
var ceilLog2 = function (x) { let y = 1;
var y = 1; while (y < x) {
while (y < x) { y *= 2;
y *= 2; }
} return y;
return y; };
};
export class PrefixIntervalTree {
BI.PrefixIntervalTree = function (xs) { constructor(xs) {
this._size = xs.length; this._size = xs.length;
this._half = ceilLog2(this._size); this._half = ceilLog2(this._size);
// _heap是一个_size两倍以上的堆 // _heap是一个_size两倍以上的堆
this._heap = new Int32Array(2 * this._half); this._heap = new Int32Array(2 * this._half);
var i; let i;
// 初始化 >= _size 的堆空间, 即叶子节点 // 初始化 >= _size 的堆空间, 即叶子节点
for (i = 0; i < this._size; ++i) { for (i = 0; i < this._size; ++i) {
this._heap[this._half + i] = xs[i]; this._heap[this._half + i] = xs[i];
@ -35,146 +35,143 @@
for (i = this._half - 1; i > 0; --i) { for (i = this._half - 1; i > 0; --i) {
this._heap[i] = this._heap[2 * i] + this._heap[2 * i + 1]; this._heap[i] = this._heap[2 * i] + this._heap[2 * i + 1];
} }
}; }
BI.PrefixIntervalTree.prototype = {
constructor: BI.PrefixIntervalTree,
// 往_half之后的空间set值，需要更新其所有祖先节点的值
set: function (index, value) {
var node = this._half + index;
this._heap[node] = value;
node = parent(node);
for (; node !== 0; node = parent(node)) {
this._heap[node] =
this._heap[2 * node] + this._heap[2 * node + 1];
}
},
get: function (index) { static uniform(size, initialValue) {
var node = this._half + index; const xs = [];
return this._heap[node]; for (let i = size - 1; i >= 0; --i) {
}, xs[i] = initialValue;
}
getSize: function () { return new PrefixIntervalTree(xs);
return this._size; }
},
/**
* get(0) + get(1) + ... + get(end - 1).
*/
sumUntil: function (end) {
if (end === 0) {
return 0;
}
var node = this._half + end - 1; static empty(size) {
var sum = this._heap[node]; return PrefixIntervalTree.uniform(size, 0);
for (; node !== 1; node = parent(node)) { }
if (node % 2 === 1) {
sum += this._heap[node - 1];
}
}
return sum; set(index, value) {
}, let node = this._half + index;
this._heap[node] = value;
/**
* get(0) + get(1) + ... + get(inclusiveEnd).
*/
sumTo: function (inclusiveEnd) {
return this.sumUntil(inclusiveEnd + 1);
},
/**
* sum get(begin) + get(begin + 1) + ... + get(end - 1).
*/
sum: function (begin, end) {
return this.sumUntil(end) - this.sumUntil(begin);
},
/**
* Returns the smallest i such that 0 <= i <= size and sumUntil(i) <= t, or
* -1 if no such i exists.
*/
greatestLowerBound: function (t) {
if (t < 0) {
return -1;
}
var node = 1; node = parent(node);
if (this._heap[node] <= t) { for (; node !== 0; node = parent(node)) {
return this._size; this._heap[node] =
} this._heap[2 * node] + this._heap[2 * node + 1];
}
}
get(index) {
const node = this._half + index;
return this._heap[node];
}
getSize() {
return this._size;
}
/**
* get(0) + get(1) + ... + get(end - 1).
*/
sumUntil(end) {
if (end === 0) {
return 0;
}
while (node < this._half) { let node = this._half + end - 1;
var leftSum = this._heap[2 * node]; let sum = this._heap[node];
if (t < leftSum) { for (; node !== 1; node = parent(node)) {
node = 2 * node; if (node % 2 === 1) {
} else { sum += this._heap[node - 1];
node = 2 * node + 1;
t -= leftSum;
}
} }
}
return node - this._half; return sum;
}, }
/**
* get(0) + get(1) + ... + get(inclusiveEnd).
*/
sumTo(inclusiveEnd) {
return this.sumUntil(inclusiveEnd + 1);
}
/**
* sum get(begin) + get(begin + 1) + ... + get(end - 1).
*/
sum(begin, end) {
return this.sumUntil(end) - this.sumUntil(begin);
}
/**
* Returns the smallest i such that 0 <= i <= size and sumUntil(i) <= t, or
* -1 if no such i exists.
*/
greatestLowerBound(t) {
if (t < 0) {
return -1;
}
/** let node = 1;
* Returns the smallest i such that 0 <= i <= size and sumUntil(i) < t, or if (this._heap[node] <= t) {
* -1 if no such i exists. return this._size;
*/ }
greatestStrictLowerBound: function (t) {
if (t <= 0) {
return -1;
}
var node = 1; while (node < this._half) {
if (this._heap[node] < t) { const leftSum = this._heap[2 * node];
return this._size; if (t < leftSum) {
node = 2 * node;
} else {
node = 2 * node + 1;
t -= leftSum;
} }
}
while (node < this._half) { return node - this._half;
var leftSum = this._heap[2 * node]; }
if (t <= leftSum) {
node = 2 * node;
} else {
node = 2 * node + 1;
t -= leftSum;
}
}
return node - this._half; /**
}, * Returns the smallest i such that 0 <= i <= size and sumUntil(i) < t, or
* -1 if no such i exists.
/** */
* Returns the smallest i such that 0 <= i <= size and t <= sumUntil(i), or greatestStrictLowerBound(t) {
* size + 1 if no such i exists. if (t <= 0) {
*/ return -1;
leastUpperBound: function (t) {
return this.greatestStrictLowerBound(t) + 1;
},
/**
* Returns the smallest i such that 0 <= i <= size and t < sumUntil(i), or
* size + 1 if no such i exists.
*/
leastStrictUpperBound: function (t) {
return this.greatestLowerBound(t) + 1;
} }
};
BI.PrefixIntervalTree.uniform = function (size, initialValue) { let node = 1;
var xs = []; if (this._heap[node] < t) {
for (var i = size - 1; i >= 0; --i) { return this._size;
xs[i] = initialValue;
} }
return new BI.PrefixIntervalTree(xs); while (node < this._half) {
}; const leftSum = this._heap[2 * node];
if (t <= leftSum) {
node = 2 * node;
} else {
node = 2 * node + 1;
t -= leftSum;
}
}
return node - this._half;
}
/**
* Returns the smallest i such that 0 <= i <= size and t <= sumUntil(i), or
* size + 1 if no such i exists.
*/
leastUpperBound(t) {
return this.greatestStrictLowerBound(t) + 1;
}
/**
* Returns the smallest i such that 0 <= i <= size and t < sumUntil(i), or
* size + 1 if no such i exists.
*/
leastStrictUpperBound(t) {
return this.greatestLowerBound(t) + 1;
}
BI.PrefixIntervalTree.empty = function (size) {
return BI.PrefixIntervalTree.uniform(size, 0);
};
})(); }

143
src/core/structure/queue.js
Unescape View File

@ -1,89 +1,86 @@
import {contains, remove} from "../2.base";
!(function () { export class Queue {
BI.Queue = function (capacity) { constructor(capacity) {
this.capacity = capacity; this.capacity = capacity;
this.array = []; this.array = [];
}; }
BI.Queue.prototype = {
constructor: BI.Queue,
contains: function (v) {
return BI.contains(this.array, v);
},
indexOf: function (v) {
return BI.contains(this.array, v);
},
getElementByIndex: function (index) {
return this.array[index];
},
push: function (v) {
this.array.push(v);
if (this.capacity && this.array.length > this.capacity) {
this.array.shift();
}
},
pop: function () { contains(v) {
this.array.pop(); return contains(this.array, v);
}, }
indexOf(v) {
return contains(this.array, v);
}
getElementByIndex(index) {
return this.array[index];
}
shift: function () { push(v) {
this.array.push(v);
if (this.capacity && this.array.length > this.capacity) {
this.array.shift(); this.array.shift();
}, }
}
unshift: function (v) { pop() {
this.array.unshift(v); this.array.pop();
if (this.capacity && this.array.length > this.capacity) { }
this.array.pop();
} shift() {
}, this.array.shift();
}
unshift(v) {
this.array.unshift(v);
if (this.capacity && this.array.length > this.capacity) {
this.array.pop();
}
}
remove: function (v) { remove(v) {
BI.remove(this.array, v); remove(this.array, v);
}, }
splice: function () { splice() {
this.array.splice.apply(this.array, arguments); this.array.splice.apply(this.array, arguments);
}, }
slice: function () { slice() {
this.array.slice.apply(this.array, arguments); this.array.slice.apply(this.array, arguments);
}, }
size: function () { size() {
return this.array.length; return this.array.length;
}, }
each: function (fn, scope) { each(fn, scope) {
var scope = scope || window; scope = scope || window;
var fn = fn || null; fn = fn || null;
if (fn == null || typeof (fn) !== "function") { if (fn == null || typeof (fn) !== "function") {
return; return;
} }
for (var i = 0; i < this.array.length; i++) { for (let i = 0; i < this.array.length; i++) {
var re = fn.call(scope, i, this.array[i], this.array); const re = fn.call(scope, i, this.array[i], this.array);
if (re == false) { if (re === false) {
break; break;
}
} }
}, }
}
toArray: function () { toArray() {
return this.array; return this.array;
}, }
fromArray(array) {
array.each(v => this.push(v));
}
clear() {
this.array.length = 0;
}
}
fromArray: function (array) {
var self = this;
BI.each(array, function (i, v) {
self.push(v);
});
},
clear: function () {
this.array.length = 0;
}
};
})();

121
src/core/structure/sectionManager.js
Unescape View File

@ -1,5 +1,7 @@
!(function () { import {each, keys, map, size} from "../2.base";
var Section = function (height, width, x, y) {
class Section {
constructor(height, width, x, y) {
this.height = height; this.height = height;
this.width = width; this.width = width;
this.x = x; this.x = x;
@ -7,82 +9,79 @@
this._indexMap = {}; this._indexMap = {};
this._indices = []; this._indices = [];
}; }
Section.prototype = {
constructor: Section,
addCellIndex: function (index) {
if (!this._indexMap[index]) {
this._indexMap[index] = true;
this._indices.push(index);
}
},
getCellIndices: function () { addCellIndex(index) {
return this._indices; if (!this._indexMap[index]) {
this._indexMap[index] = true;
this._indices.push(index);
} }
}; }
getCellIndices() {
return this._indices;
}
}
var SECTION_SIZE = 100; const SECTION_SIZE = 100;
BI.SectionManager = function (sectionSize) {
this._sectionSize = sectionSize || SECTION_SIZE; export class SectionManager {
constructor(sectionSize = SECTION_SIZE) {
this._sectionSize = sectionSize;
this._cellMetadata = []; this._cellMetadata = [];
this._sections = {}; this._sections = {};
}; }
BI.SectionManager.prototype = {
constructor: BI.SectionManager,
getCellIndices: function (height, width, x, y) {
var indices = {};
BI.each(this.getSections(height, width, x, y), function (i, section) { getCellIndices(height, width, x, y) {
BI.each(section.getCellIndices(), function (j, index) { const indices = {};
indices[index] = index;
});
});
return BI.map(BI.keys(indices), function (i, index) { each(this.getSections(height, width, x, y), function (i, section) {
return indices[index]; each(section.getCellIndices(), function (j, index) {
indices[index] = index;
}); });
}, });
getCellMetadata: function (index) { return map(keys(indices), function (i, index) {
return this._cellMetadata[index]; return indices[index];
}, });
}
getSections: function (height, width, x, y) { getCellMetadata(index) {
var sectionXStart = Math.floor(x / this._sectionSize); return this._cellMetadata[index];
var sectionXStop = Math.floor((x + width - 1) / this._sectionSize); }
var sectionYStart = Math.floor(y / this._sectionSize);
var sectionYStop = Math.floor((y + height - 1) / this._sectionSize);
var sections = []; getSections(height, width, x, y) {
const sectionXStart = Math.floor(x / this._sectionSize);
const sectionXStop = Math.floor((x + width - 1) / this._sectionSize);
const sectionYStart = Math.floor(y / this._sectionSize);
const sectionYStop = Math.floor((y + height - 1) / this._sectionSize);
for (var sectionX = sectionXStart; sectionX <= sectionXStop; sectionX++) { const sections = [];
for (var sectionY = sectionYStart; sectionY <= sectionYStop; sectionY++) {
var key = sectionX + "." + sectionY;
if (!this._sections[key]) { for (let sectionX = sectionXStart; sectionX <= sectionXStop; sectionX++) {
this._sections[key] = new Section(this._sectionSize, this._sectionSize, sectionX * this._sectionSize, sectionY * this._sectionSize); for (let sectionY = sectionYStart; sectionY <= sectionYStop; sectionY++) {
} const key = sectionX + "." + sectionY;
sections.push(this._sections[key]); if (!this._sections[key]) {
this._sections[key] = new Section(this._sectionSize, this._sectionSize, sectionX * this._sectionSize, sectionY * this._sectionSize);
} }
sections.push(this._sections[key]);
} }
}
return sections; return sections;
}, }
getTotalSectionCount: function () { getTotalSectionCount() {
return BI.size(this._sections); return size(this._sections);
}, }
registerCell: function (cellMetadatum, index) { registerCell(cellMetadatum, index) {
this._cellMetadata[index] = cellMetadatum; this._cellMetadata[index] = cellMetadatum;
BI.each(this.getSections(cellMetadatum.height, cellMetadatum.width, cellMetadatum.x, cellMetadatum.y), function (i, section) { each(this.getSections(cellMetadatum.height, cellMetadatum.width, cellMetadatum.x, cellMetadatum.y), function (i, section) {
section.addCellIndex(index); section.addCellIndex(index);
}); });
} }
}; }
})();

934
src/core/structure/tree.js
Unescape View File

@ -1,517 +1,521 @@
(function () { import {
BI.Tree = function () { isObject,
this.root = new BI.Node(BI.UUID()); UUID,
}; extend,
isEmpty,
BI.Tree.prototype = { isArray,
constructor: BI.Tree, first,
addNode: function (node, newNode, index) { last,
if (BI.isNull(newNode)) { findIndex,
this.root.addChild(node, index); isUndefined,
} else if (BI.isNull(node)) { isNull,
this.root.addChild(newNode, index); each,
} else { deepClone,
node.addChild(newNode, index); isEqual, some, every, clone
} } from "../2.base";
},
export class Node {
isRoot: function (node) { constructor(id) {
return node === this.root; if (isObject(id)) {
}, extend(this, id);
} else {
getRoot: function () { this.id = id;
return this.root; }
}, this.clear();
}
clear: function () {
this.root.clear();
},
initTree: function (nodes) {
var self = this;
this.clear();
var queue = [];
BI.each(nodes, function (i, node) {
var n = new BI.Node(node);
n.set("data", node);
self.addNode(n);
queue.push(n);
});
while (!BI.isEmpty(queue)) {
var parent = queue.shift();
var node = parent.get("data");
BI.each(node.children, function (i, child) {
var n = new BI.Node(child);
n.set("data", child);
queue.push(n);
self.addNode(parent, n);
});
}
},
_toJSON: function (node) { set(key, value) {
var self = this; if (isObject(key)) {
var children = []; extend(this, key);
BI.each(node.getChildren(), function (i, child) { return;
children.push(self._toJSON(child)); }
}); this[key] = value;
return BI.extend({ }
id: node.id
}, BI.deepClone(node.get("data")), (children.length > 0 ? { get(key) {
children: children return this[key];
} : {})); }
},
isLeaf() {
toJSON: function (node) { return isEmpty(this.children);
var self = this, result = []; }
BI.each((node || this.root).getChildren(), function (i, child) {
result.push(self._toJSON(child)); getChildren() {
}); return this.children;
return result; }
},
getChildrenLength() {
_toJSONWithNode: function (node) { return this.children.length;
var self = this; }
var children = [];
BI.each(node.getChildren(), function (i, child) { getFirstChild() {
children.push(self._toJSONWithNode(child)); return first(this.children);
}); }
return BI.extend({
id: node.id getLastChild() {
}, BI.deepClone(node.get("data")), { return last(this.children);
node: node }
}, (children.length > 0 ? {
children: children setLeft(left) {
} : {})); this.left = left;
}, }
toJSONWithNode: function (node) { getLeft() {
var self = this, result = []; return this.left;
BI.each((node || this.root).getChildren(), function (i, child) { }
result.push(self._toJSONWithNode(child));
setRight(right) {
this.right = right;
}
getRight() {
return this.right;
}
setParent(parent) {
this.parent = parent;
}
getParent() {
return this.parent;
}
getChild(index) {
return this.children[index];
}
getChildIndex(id) {
return findIndex(this.children, function (i, ch) {
return ch.get("id") === id;
});
}
removeChild(id) {
this.removeChildByIndex(this.getChildIndex(id));
}
removeChildByIndex(index) {
const before = this.getChild(index - 1);
const behind = this.getChild(index + 1);
if (before != null) {
before.setRight(behind || null);
}
if (behind != null) {
behind.setLeft(before || null);
}
this.children.splice(index, 1);
}
removeAllChilds() {
this.children = [];
}
addChild(child, index) {
let cur = null;
if (isUndefined(index)) {
cur = this.children.length - 1;
} else {
cur = index - 1;
}
child.setParent(this);
if (cur >= 0) {
this.getChild(cur) && this.getChild(cur).setRight(child);
child.setLeft(this.getChild(cur));
}
if (isUndefined(index)) {
this.children.push(child);
} else {
this.children.splice(index, 0, child);
}
}
equals(obj) {
return this === obj || this.id === obj.id;
}
clear() {
this.parent = null;
this.left = null;
this.right = null;
this.children = [];
}
}
export class Tree {
constructor() {
this.root = new Node(UUID());
}
addNode(node, newNode, index) {
if (isNull(newNode)) {
this.root.addChild(node, index);
} else if (isNull(node)) {
this.root.addChild(newNode, index);
} else {
node.addChild(newNode, index);
}
}
isRoot(node) {
return node === this.root;
}
getRoot() {
return this.root;
}
clear() {
this.root.clear();
}
initTree(nodes) {
this.clear();
const queue = [];
each(nodes, (i, node) => {
const n = new Node(node);
n.set("data", node);
this.addNode(n);
queue.push(n);
});
while (!isEmpty(queue)) {
const parent = queue.shift();
const node = parent.get("data");
each(node.children, (i, child) => {
const n = new Node(child);
n.set("data", child);
queue.push(n);
this.addNode(parent, n);
}); });
return result; }
}, }
_toJSON(node) {
const children = [];
each(node.getChildren(), (i, child) => {
children.push(this._toJSON(child));
});
return extend({
id: node.id,
}, deepClone(node.get("data")), (children.length > 0 ? {
children: children,
} : {}));
}
toJSON(node) {
const result = [];
each((node || this.root).getChildren(), (i, child) => {
result.push(this._toJSON(child));
});
return result;
}
_toJSONWithNode(node) {
const children = [];
each(node.getChildren(), (i, child) => {
children.push(this._toJSONWithNode(child));
});
return extend({
id: node.id,
}, deepClone(node.get("data")), {
node: node,
}, (children.length > 0 ? {
children: children,
} : {}));
}
toJSONWithNode(node) {
const result = [];
each((node || this.root).getChildren(), (i, child) => {
result.push(this._toJSONWithNode(child));
});
return result;
}
search(root, target, param) {
if (!(root instanceof Node)) {
return this.search(this.root, root, target);
}
let next = null;
search: function (root, target, param) { if (isNull(target)) {
if (!(root instanceof BI.Node)) { return null;
return arguments.callee.apply(this, [this.root, root, target]); }
if (isEqual(root[param || "id"], target)) {
return root;
}
some(root.getChildren(), (i, child) => {
next = this.search(child, target, param);
if (null !== next) {
return true;
} }
var self = this, next = null; });
return next;
if (BI.isNull(target)) { }
return null;
_traverse(node, callback) {
let queue = [];
queue.push(node);
while (!isEmpty(queue)) {
const temp = queue.shift();
const b = callback && callback(temp);
if (b === false) {
break;
} }
if (BI.isEqual(root[param || "id"], target)) { if (b === true) {
return root; continue;
} }
BI.any(root.getChildren(), function (i, child) { if (temp != null) {
next = self.search(child, target, param); queue = queue.concat(temp.getChildren());
if (null !== next) {
return true;
}
});
return next;
},
_traverse: function (node, callback) {
var queue = [];
queue.push(node);
while (!BI.isEmpty(queue)) {
var temp = queue.shift();
var b = callback && callback(temp);
if (b === false) {
break;
}
if (b === true) {
continue;
}
if (temp != null) {
queue = queue.concat(temp.getChildren());
}
} }
}, }
}
traverse: function (callback) {
this._traverse(this.root, callback); traverse(callback) {
}, this._traverse(this.root, callback);
}
_recursion: function (node, route, callback) {
var self = this; _recursion(node, route, callback) {
return BI.every(node.getChildren(), function (i, child) { return every(node.getChildren(), (i, child) => {
var next = BI.clone(route); const next = clone(route);
next.push(child.id); next.push(child.id);
var b = callback && callback(child, next); const b = callback && callback(child, next);
if (b === false) { if (b === false) {
return false; return false;
}
if (b === true) {
return true;
}
return self._recursion(child, next, callback);
});
},
recursion: function (callback) {
this._recursion(this.root, [], callback);
},
inOrderTraverse: function (callback) {
this._inOrderTraverse(this.root, callback);
},
// 中序遍历(递归)
_inOrderTraverse: function (node, callback) {
if (node != null) {
this._inOrderTraverse(node.getLeft());
callback && callback(node);
this._inOrderTraverse(node.getRight());
} }
}, if (b === true) {
return true;
// 中序遍历(非递归)
nrInOrderTraverse: function (callback) {
var stack = [];
var node = this.root;
while (node != null || !BI.isEmpty(stack)) {
while (node != null) {
stack.push(node);
node = node.getLeft();
}
node = stack.pop();
callback && callback(node);
node = node.getRight();
} }
}, return this._recursion(child, next, callback);
});
}
recursion(callback) {
this._recursion(this.root, [], callback);
}
inOrderTraverse(callback) {
this._inOrderTraverse(this.root, callback);
}
// 中序遍历(递归)
_inOrderTraverse(node, callback) {
if (node != null) {
this._inOrderTraverse(node.getLeft());
callback && callback(node);
this._inOrderTraverse(node.getRight());
}
}
preOrderTraverse: function (callback) { // 中序遍历(非递归)
this._preOrderTraverse(this.root, callback); nrInOrderTraverse(callback) {
},
// 先序遍历(递归) const stack = [];
_preOrderTraverse: function (node, callback) { let node = this.root;
if (node != null) { while (node != null || !isEmpty(stack)) {
callback && callback(node); while (node != null) {
this._preOrderTraverse(node.getLeft()); stack.push(node);
this._preOrderTraverse(node.getRight()); node = node.getLeft();
} }
}, node = stack.pop();
callback && callback(node);
// 先序遍历（非递归） node = node.getRight();
nrPreOrderTraverse: function (callback) { }
}
var stack = [];
var node = this.root; preOrderTraverse(callback) {
this._preOrderTraverse(this.root, callback);
}
// 先序遍历(递归)
_preOrderTraverse(node, callback) {
if (node != null) {
callback && callback(node);
this._preOrderTraverse(node.getLeft());
this._preOrderTraverse(node.getRight());
}
}
while (node != null || !BI.isEmpty(stack)) { // 先序遍历（非递归）
nrPreOrderTraverse(callback) {
while (node != null) { const stack = [];
callback && callback(node); let node = this.root;
stack.push(node);
node = node.getLeft();
}
node = stack.pop();
node = node.getRight();
}
},
postOrderTraverse: function (callback) { while (node != null || !isEmpty(stack)) {
this._postOrderTraverse(this.root, callback);
},
// 后序遍历(递归) while (node != null) {
_postOrderTraverse: function (node, callback) {
if (node != null) {
this._postOrderTraverse(node.getLeft());
this._postOrderTraverse(node.getRight());
callback && callback(node); callback && callback(node);
stack.push(node);
node = node.getLeft();
} }
}, node = stack.pop();
node = node.getRight();
// 后续遍历(非递归)
nrPostOrderTraverse: function (callback) {
var stack = [];
var node = this.root;
var preNode = null;// 表示最近一次访问的节点
while (node != null || !BI.isEmpty(stack)) {
while (node != null) {
stack.push(node);
node = node.getLeft();
}
node = BI.last(stack);
if (node.getRight() == null || node.getRight() == preNode) {
callback && callback(node);
node = stack.pop();
preNode = node;
node = null;
} else {
node = node.getRight();
}
}
} }
}; }
BI.Node = function (id) { postOrderTraverse(callback) {
if (BI.isObject(id)) { this._postOrderTraverse(this.root, callback);
BI.extend(this, id); }
} else {
this.id = id; // 后序遍历(递归)
_postOrderTraverse(node, callback) {
if (node != null) {
this._postOrderTraverse(node.getLeft());
this._postOrderTraverse(node.getRight());
callback && callback(node);
} }
this.clear.apply(this, arguments); }
};
BI.Node.prototype = {
constructor: BI.Node,
set: function (key, value) {
if (BI.isObject(key)) {
BI.extend(this, key);
return;
}
this[key] = value;
},
get: function (key) {
return this[key];
},
isLeaf: function () {
return BI.isEmpty(this.children);
},
getChildren: function () {
return this.children;
},
getChildrenLength: function () {
return this.children.length;
},
getFirstChild: function () {
return BI.first(this.children);
},
getLastChild: function () {
return BI.last(this.children);
},
setLeft: function (left) { // 后续遍历(非递归)
this.left = left; nrPostOrderTraverse(callback) {
},
getLeft: function () { const stack = [];
return this.left; let node = this.root;
}, let preNode = null;// 表示最近一次访问的节点
setRight: function (right) { while (node != null || !isEmpty(stack)) {
this.right = right;
},
getRight: function () { while (node != null) {
return this.right; stack.push(node);
}, node = node.getLeft();
setParent: function (parent) {
this.parent = parent;
},
getParent: function () {
return this.parent;
},
getChild: function (index) {
return this.children[index];
},
getChildIndex: function (id) {
return BI.findIndex(this.children, function (i, ch) {
return ch.get("id") === id;
});
},
removeChild: function (id) {
this.removeChildByIndex(this.getChildIndex(id));
},
removeChildByIndex: function (index) {
var before = this.getChild(index - 1);
var behind = this.getChild(index + 1);
if (before != null) {
before.setRight(behind || null);
}
if (behind != null) {
behind.setLeft(before || null);
} }
this.children.splice(index, 1);
},
removeAllChilds: function () { node = last(stack);
this.children = [];
},
addChild: function (child, index) { if (node.getRight() == null || node.getRight() === preNode) {
var cur = null; callback && callback(node);
if (BI.isUndefined(index)) { node = stack.pop();
cur = this.children.length - 1; preNode = node;
node = null;
} else { } else {
cur = index - 1; node = node.getRight();
} }
child.setParent(this); }
if (cur >= 0) { }
this.getChild(cur) && this.getChild(cur).setRight(child);
child.setLeft(this.getChild(cur)); static transformToArrayFormat(nodes, pId, childKey) {
if (!nodes) return [];
let r = [];
childKey = childKey || "children";
if (isArray(nodes)) {
for (let i = 0, l = nodes.length; i < l; i++) {
const node = clone(nodes[i]);
node.pId = node.pId == null ? pId : node.pId;
delete node.children;
r.push(node);
if (nodes[i][childKey]) {
r = r.concat(Tree.transformToArrayFormat(nodes[i][childKey], node.id));
}
} }
if (BI.isUndefined(index)) { } else {
this.children.push(child); const newNodes = clone(nodes);
} else { newNodes.pId = newNodes.pId == null ? pId : newNodes.pId;
this.children.splice(index, 0, child); delete newNodes.children;
r.push(newNodes);
if (nodes[childKey]) {
r = r.concat(Tree.transformToArrayFormat(nodes[childKey], newNodes.id));
} }
}, }
return r;
equals: function (obj) { }
return this === obj || this.id === obj.id;
},
clear: function () { static arrayFormat(nodes, pId) {
this.parent = null; if (!nodes) {
this.left = null; return [];
this.right = null;
this.children = [];
} }
}; let r = [];
if (isArray(nodes)) {
BI.extend(BI.Tree, { for (let i = 0, l = nodes.length; i < l; i++) {
transformToArrayFormat: function (nodes, pId, childKey) { const node = nodes[i];
if (!nodes) return []; node.pId = node.pId == null ? pId : node.pId;
var r = []; r.push(node);
childKey = childKey || "children"; if (nodes[i]["children"]) {
if (BI.isArray(nodes)) { r = r.concat(Tree.arrayFormat(nodes[i]["children"], node.id));
for (var i = 0, l = nodes.length; i < l; i++) {
var node = BI.clone(nodes[i]);
node.pId = node.pId == null ? pId : node.pId;
delete node.children;
r.push(node);
if (nodes[i][childKey]) {
r = r.concat(BI.Tree.transformToArrayFormat(nodes[i][childKey], node.id));
}
}
} else {
var newNodes = BI.clone(nodes);
newNodes.pId = newNodes.pId == null ? pId : newNodes.pId;
delete newNodes.children;
r.push(newNodes);
if (nodes[childKey]) {
r = r.concat(BI.Tree.transformToArrayFormat(nodes[childKey], newNodes.id));
} }
} }
return r; } else {
}, const newNodes = nodes;
newNodes.pId = newNodes.pId == null ? pId : newNodes.pId;
arrayFormat: function (nodes, pId) { r.push(newNodes);
if (!nodes) { if (nodes["children"]) {
return []; r = r.concat(Tree.arrayFormat(nodes["children"], newNodes.id));
}
var r = [];
if (BI.isArray(nodes)) {
for (var i = 0, l = nodes.length; i < l; i++) {
var node = nodes[i];
node.pId = node.pId == null ? pId : node.pId;
r.push(node);
if (nodes[i]["children"]) {
r = r.concat(BI.Tree.arrayFormat(nodes[i]["children"], node.id));
}
}
} else {
var newNodes = nodes;
newNodes.pId = newNodes.pId == null ? pId : newNodes.pId;
r.push(newNodes);
if (nodes["children"]) {
r = r.concat(BI.Tree.arrayFormat(nodes["children"], newNodes.id));
}
} }
return r; }
}, return r;
}
transformToTreeFormat: function (sNodes) { static transformToTreeFormat(sNodes) {
var i, l; let i, l;
if (!sNodes) { if (!sNodes) {
return []; return [];
} }
if (BI.isArray(sNodes)) { if (isArray(sNodes)) {
var r = []; const r = [];
var tmpMap = {}; const tmpMap = {};
for (i = 0, l = sNodes.length; i < l; i++) { for (i = 0, l = sNodes.length; i < l; i++) {
if (BI.isNull(sNodes[i].id)) { if (isNull(sNodes[i].id)) {
return sNodes; return sNodes;
}
tmpMap[sNodes[i].id] = BI.clone(sNodes[i]);
} }
for (i = 0, l = sNodes.length; i < l; i++) { tmpMap[sNodes[i].id] = clone(sNodes[i]);
if (tmpMap[sNodes[i].pId] && sNodes[i].id !== sNodes[i].pId) { }
if (!tmpMap[sNodes[i].pId].children) { for (i = 0, l = sNodes.length; i < l; i++) {
tmpMap[sNodes[i].pId].children = []; if (tmpMap[sNodes[i].pId] && sNodes[i].id !== sNodes[i].pId) {
} if (!tmpMap[sNodes[i].pId].children) {
tmpMap[sNodes[i].pId].children.push(tmpMap[sNodes[i].id]); tmpMap[sNodes[i].pId].children = [];
} else {
r.push(tmpMap[sNodes[i].id]);
} }
delete tmpMap[sNodes[i].id].pId; tmpMap[sNodes[i].pId].children.push(tmpMap[sNodes[i].id]);
} else {
r.push(tmpMap[sNodes[i].id]);
} }
return r; delete tmpMap[sNodes[i].id].pId;
} }
return [sNodes]; return r;
}
return [sNodes];
}, }
treeFormat: function (sNodes) { static treeFormat(sNodes) {
var i, l; let i, l;
if (!sNodes) { if (!sNodes) {
return []; return [];
} }
if (BI.isArray(sNodes)) { if (isArray(sNodes)) {
var r = []; const r = [];
var tmpMap = {}; const tmpMap = {};
for (i = 0, l = sNodes.length; i < l; i++) { for (i = 0, l = sNodes.length; i < l; i++) {
if (BI.isNull(sNodes[i].id)) { if (isNull(sNodes[i].id)) {
return sNodes; return sNodes;
}
tmpMap[sNodes[i].id] = sNodes[i];
} }
for (i = 0, l = sNodes.length; i < l; i++) { tmpMap[sNodes[i].id] = sNodes[i];
if (tmpMap[sNodes[i].pId] && sNodes[i].id !== sNodes[i].pId) { }
if (!tmpMap[sNodes[i].pId].children) { for (i = 0, l = sNodes.length; i < l; i++) {
tmpMap[sNodes[i].pId].children = []; if (tmpMap[sNodes[i].pId] && sNodes[i].id !== sNodes[i].pId) {
} if (!tmpMap[sNodes[i].pId].children) {
tmpMap[sNodes[i].pId].children.push(tmpMap[sNodes[i].id]); tmpMap[sNodes[i].pId].children = [];
} else {
r.push(tmpMap[sNodes[i].id]);
} }
tmpMap[sNodes[i].pId].children.push(tmpMap[sNodes[i].id]);
} else {
r.push(tmpMap[sNodes[i].id]);
} }
return r;
} }
return [sNodes]; return r;
}
return [sNodes];
}, }
traversal: function (array, callback, pNode) { static traversal(array, callback, pNode) {
if (BI.isNull(array)) { if (isNull(array)) {
return; return;
}
var self = this;
BI.some(array, function (i, item) {
if (callback(i, item, pNode) === false) {
return true;
}
self.traversal(item.children, callback, item);
});
} }
}); some(array, (i, item) => {
})(); if (callback(i, item, pNode) === false) {
return true;
}
this.traversal(item.children, callback, item);
});
}
}

61
src/core/structure/vector.js
Unescape View File

@ -1,27 +1,29 @@
// 向量操作 // 向量操作
BI.Vector = function (x, y) { export class Vector {
this.x = x; constructor(x, y) {
this.y = y; this.x = x;
}; this.y = y;
BI.Vector.prototype = { }
constructor: BI.Vector,
cross: function (v) { cross(v) {
return (this.x * v.y - this.y * v.x); return (this.x * v.y - this.y * v.x);
}, }
length: function (v) {
length(v) {
return (Math.sqrt(this.x * v.x + this.y * v.y)); return (Math.sqrt(this.x * v.x + this.y * v.y));
} }
}; }
BI.Region = function (x, y, w, h) {
this.x = x; export class Region {
this.y = y; constructor(x, y, w, h) {
this.w = w; this.x = x;
this.h = h; this.y = y;
}; this.w = w;
BI.Region.prototype = { this.h = h;
constructor: BI.Region, }
// 判断两个区域是否相交，若相交，则要么顶点互相包含，要么矩形边界（或对角线）相交 // 判断两个区域是否相交，若相交，则要么顶点互相包含，要么矩形边界（或对角线）相交
isIntersects: function (obj) { isIntersects(obj) {
if (this.isPointInside(obj.x, obj.y) || if (this.isPointInside(obj.x, obj.y) ||
this.isPointInside(obj.x + obj.w, obj.y) || this.isPointInside(obj.x + obj.w, obj.y) ||
this.isPointInside(obj.x, obj.y + obj.h) || this.isPointInside(obj.x, obj.y + obj.h) ||
@ -34,17 +36,18 @@ BI.Region.prototype = {
return true; return true;
} else if (obj.x != null && obj.y != null)// 判断矩形对角线相交 |v1 X v2||v1 X v3| < 0 } else if (obj.x != null && obj.y != null)// 判断矩形对角线相交 |v1 X v2||v1 X v3| < 0
{ {
var vector1 = new BI.Vector(this.w, this.h);// 矩形对角线向量 const vector1 = new Vector(this.w, this.h);// 矩形对角线向量
var vector2 = new BI.Vector(obj.x - this.x, obj.y - this.y); const vector2 = new Vector(obj.x - this.x, obj.y - this.y);
var vector3 = new BI.Vector(vector2.x + obj.w, vector2.y + obj.h); const vector3 = new Vector(vector2.x + obj.w, vector2.y + obj.h);
if ((vector1.cross(vector2) * vector1.cross(vector3)) < 0) { if ((vector1.cross(vector2) * vector1.cross(vector3)) < 0) {
return true; return true;
} }
} }
return false; return false;
}, }
// 判断一个点是否在这个区域内部 // 判断一个点是否在这个区域内部
isPointInside: function (x, y) { isPointInside(x, y) {
if (this.x == null || this.y == null) { if (this.x == null || this.y == null) {
return false; return false;
} }
@ -52,12 +55,14 @@ BI.Region.prototype = {
return true; return true;
} }
return false; return false;
}, }
// 返回区域的重心，因为是矩形所以返回中点 // 返回区域的重心，因为是矩形所以返回中点
getPosition: function () { getPosition() {
var pos = []; const pos = [];
pos.push(this.x + this.w / 2); pos.push(this.x + this.w / 2);
pos.push(this.y + this.h / 2); pos.push(this.y + this.h / 2);
return pos; return pos;
} }
}; }

Write Preview
Loading…
Cancel
Save