X-Git-Url: https://git.kianting.info/?a=blobdiff_plain;f=src%2Flibclo%2FbreakLines.js;h=c7319be170a726b1e7d95b78e2bef42a1f1aa272;hb=714bbb4a64531268d17ca8f7ae60800ec2046a27;hp=9367d53395a09495884d65ef01a953f24955f66f;hpb=e9819c8bc28d209d79461117d5b70f7b6b94abb6;p=clo diff --git a/src/libclo/breakLines.js b/src/libclo/breakLines.js index 9367d53..c7319be 100644 --- a/src/libclo/breakLines.js +++ b/src/libclo/breakLines.js @@ -34,11 +34,15 @@ class BreakLineAlgorithm { return item.width; } } + /**segement node of one paragraph into lines. + * @args items: nodes of a line + * @args linewidth: the line width + * @returns segmented nodes into lines + */ segmentedNodes(items, lineWidth) { - let lineWidthFixed = lineWidth * 0.75; + let lineWidthFixed = lineWidth; this.totalCost(items, lineWidthFixed); let nodeList = this.generateBreakLineNodeList(); - console.log("~~~", nodeList); let res = []; let low = -1; let up = nodeList[0]; @@ -47,7 +51,6 @@ class BreakLineAlgorithm { low = nodeList[i]; up = nodeList[i + 1]; } - console.log("===", res.length); return res; } /**genrate the list of point of breaking line. it returns a correct list ascending*/ @@ -74,6 +77,7 @@ class BreakLineAlgorithm { * check all the total cost of paragraphes of the segnemt */ totalCost(items, lineWidth) { + let lineWidthFixed = lineWidth * 0.75; let itemsLength = items.length; this.lineCostStorage = Array(itemsLength); this.prevNodes = Array(itemsLength).fill(null); @@ -81,7 +85,14 @@ class BreakLineAlgorithm { this.lineCostStorage[i] = Array(itemsLength).fill(null); } this.totalCostAuxStorage = Array(itemsLength).fill(null); - let a = this.totalCostAux(items, itemsLength - 1, lineWidth); + let a = Infinity; + for (var k = itemsLength - 2; this.lineCost(items, k + 1, itemsLength - 1, lineWidthFixed) < Infinity; k--) { + let tmp = this.totalCostAux(items, k, lineWidthFixed); + if (a > tmp) { + this.prevNodes[itemsLength - 1] = k; + a = tmp; + } + } return a; } /** @@ -96,13 +107,13 @@ class BreakLineAlgorithm { } let rawLineCost = this.lineCost(items, 0, j, lineWidth); if (rawLineCost != Infinity) { - this.totalCostAuxStorage[j] = rawLineCost; - return rawLineCost; + this.totalCostAuxStorage[j] = rawLineCost ** 3.0; + return rawLineCost ** 3.0; } else { var returnCost = Infinity; for (var k = 0; k < j; k++) { - let tmp = this.totalCostAux(items, k, lineWidth) + this.lineCost(items, k + 1, j, lineWidth); + let tmp = this.totalCostAux(items, k, lineWidth) + this.lineCost(items, k + 1, j, lineWidth) ** 3.0; if (returnCost > tmp) { this.prevNodes[j] = k; returnCost = tmp; @@ -111,7 +122,6 @@ class BreakLineAlgorithm { this.totalCostAuxStorage[j] = returnCost; return returnCost; } - return returnCost; } /** * check the line cost of a line containing items[i..j] @@ -121,7 +131,8 @@ class BreakLineAlgorithm { * @param lineWidth line width */ lineCost(items, i, j, lineWidth) { - if (this.lineCostStorage[i] !== null && this.lineCostStorage[i][j] !== null) { + if (this.lineCostStorage[i][j] !== null) { + console.log("AA"); return this.lineCostStorage[i][j]; } if (!this.isBreakPoint(items[j])) { @@ -139,7 +150,7 @@ class BreakLineAlgorithm { return Infinity; } else { - let returnValue = (lineWidth - tmpItemWidth) ** 3.0; + let returnValue = (lineWidth - tmpItemWidth); this.lineCostStorage[i][j] = returnValue; return returnValue; }