You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
442 lines
15 KiB
442 lines
15 KiB
8 months ago
|
window.onload = function () {
|
||
|
|
var paper = Raphael("holder");
|
||
|
|
|
||
|
|
//var curve = paper.ellipse(100, 100, 1, 1).attr({"stroke-width": 0, fill: Color.red});
|
||
|
|
|
||
|
|
var text = "Betty Botter bought some butter but, she said, the butter's bitter. If I put it in my batter, it will make my batter bitter. But a bit of better butter will make my batter better. So, she bought a bit of butter, better than her bitter butter, and she put it in her batter, and the batter was not bitter. It was better Betty Botter bought a bit better butter.";
|
||
|
|
var font = {font: "11px Arial", "font-style":"italic", opacity: 1, "fill": LABEL_COLOR, stroke: LABEL_COLOR, "stroke-width":.3};
|
||
|
|
var font = {font: "11px Arial", opacity: 1, "fill": LABEL_COLOR};
|
||
|
|
var boxWidth = 100
|
||
|
|
|
||
|
|
var AttributedStringIterator = function(text){
|
||
|
|
//this.text = this.rtrim(this.ltrim(text));
|
||
|
|
text = text.replace(/(\s)+/, " ");
|
||
|
|
this.text = this.rtrim(text);
|
||
|
|
/*
|
||
|
|
if (beginIndex < 0 || beginIndex > endIndex || endIndex > length()) {
|
||
|
|
throw new IllegalArgumentException("Invalid substring range");
|
||
|
|
}
|
||
|
|
*/
|
||
|
|
this.beginIndex = 0;
|
||
|
|
this.endIndex = this.text.length;
|
||
|
|
this.currentIndex = this.beginIndex;
|
||
|
|
|
||
|
|
//console.group("[AttributedStringIterator]");
|
||
|
|
var i = 0;
|
||
|
|
var string = this.text;
|
||
|
|
var fullPos = 0;
|
||
|
|
|
||
|
|
//console.log("string: \"" + string + "\", length: " + string.length);
|
||
|
|
this.startWordOffsets = [];
|
||
|
|
this.startWordOffsets.push(fullPos);
|
||
|
|
|
||
|
|
// TODO: remove i 1000
|
||
|
|
while (i<1000) {
|
||
|
|
var pos = string.search(/[ \t\n\f-\.\,]/);
|
||
|
|
if (pos == -1)
|
||
|
|
break;
|
||
|
|
|
||
|
|
// whitespace start
|
||
|
|
fullPos += pos;
|
||
|
|
string = string.substr(pos);
|
||
|
|
////console.log("fullPos: " + fullPos + ", pos: " + pos + ", string: ", string);
|
||
|
|
|
||
|
|
// remove whitespaces
|
||
|
|
var pos = string.search(/[^ \t\n\f-\.\,]/);
|
||
|
|
if (pos == -1)
|
||
|
|
break;
|
||
|
|
|
||
|
|
// whitespace end
|
||
|
|
fullPos += pos;
|
||
|
|
string = string.substr(pos);
|
||
|
|
|
||
|
|
////console.log("fullPos: " + fullPos);
|
||
|
|
this.startWordOffsets.push(fullPos);
|
||
|
|
|
||
|
|
i++;
|
||
|
|
}
|
||
|
|
//console.log("startWordOffsets: ", this.startWordOffsets);
|
||
|
|
//console.groupEnd();
|
||
|
|
};
|
||
|
|
AttributedStringIterator.prototype = {
|
||
|
|
getEndIndex: function(pos){
|
||
|
|
if (typeof(pos) == "undefined")
|
||
|
|
return this.endIndex;
|
||
|
|
|
||
|
|
var string = this.text.substr(pos, this.endIndex - pos);
|
||
|
|
|
||
|
|
var posEndOfLine = string.search(/[\n]/);
|
||
|
|
if (posEndOfLine == -1)
|
||
|
|
return this.endIndex;
|
||
|
|
else
|
||
|
|
return pos + posEndOfLine;
|
||
|
|
},
|
||
|
|
getBeginIndex: function(){
|
||
|
|
return this.beginIndex;
|
||
|
|
},
|
||
|
|
isWhitespace: function(pos){
|
||
|
|
var str = this.text[pos];
|
||
|
|
var whitespaceChars = " \t\n\f";
|
||
|
|
|
||
|
|
return (whitespaceChars.indexOf(str) != -1);
|
||
|
|
},
|
||
|
|
isNewLine: function(pos){
|
||
|
|
var str = this.text[pos];
|
||
|
|
var whitespaceChars = "\n";
|
||
|
|
|
||
|
|
return (whitespaceChars.indexOf(str) != -1);
|
||
|
|
},
|
||
|
|
preceding: function(pos){
|
||
|
|
//console.group("[AttributedStringIterator.preceding]");
|
||
|
|
for(var i in this.startWordOffsets) {
|
||
|
|
var startWordOffset = this.startWordOffsets[i];
|
||
|
|
if (pos < startWordOffset && i>0) {
|
||
|
|
//console.log("startWordOffset: " + this.startWordOffsets[i-1]);
|
||
|
|
//console.groupEnd();
|
||
|
|
return this.startWordOffsets[i-1];
|
||
|
|
}
|
||
|
|
}
|
||
|
|
//console.log("pos: " + pos);
|
||
|
|
//console.groupEnd();
|
||
|
|
return this.startWordOffsets[i];
|
||
|
|
},
|
||
|
|
following: function(pos){
|
||
|
|
//console.group("[AttributedStringIterator.following]");
|
||
|
|
for(var i in this.startWordOffsets) {
|
||
|
|
var startWordOffset = this.startWordOffsets[i];
|
||
|
|
if (pos < startWordOffset && i>0) {
|
||
|
|
//console.log("startWordOffset: " + this.startWordOffsets[i]);
|
||
|
|
//console.groupEnd();
|
||
|
|
return this.startWordOffsets[i];
|
||
|
|
}
|
||
|
|
}
|
||
|
|
//console.log("pos: " + pos);
|
||
|
|
//console.groupEnd();
|
||
|
|
return this.startWordOffsets[i];
|
||
|
|
},
|
||
|
|
ltrim: function(str){
|
||
|
|
var patt2=/^\s+/g;
|
||
|
|
return str.replace(patt2, "");
|
||
|
|
},
|
||
|
|
rtrim: function(str){
|
||
|
|
var patt2=/\s+$/g;
|
||
|
|
return str.replace(patt2, "");
|
||
|
|
},
|
||
|
|
getLayout: function(start, limit){
|
||
|
|
return this.text.substr(start, limit - start);
|
||
|
|
},
|
||
|
|
getCharAtPos: function(pos) {
|
||
|
|
return this.text[pos];
|
||
|
|
}
|
||
|
|
};
|
||
|
|
|
||
|
|
/*
|
||
|
|
var TextMeasurer = function(paper, text, fontAttrs){
|
||
|
|
this.text = text;
|
||
|
|
this.paper = paper;
|
||
|
|
this.fontAttrs = fontAttrs;
|
||
|
|
|
||
|
|
this.fStart = this.text.getBeginIndex();
|
||
|
|
|
||
|
|
};
|
||
|
|
TextMeasurer.prototype = {
|
||
|
|
getLineBreakIndex: function(start, maxAdvance){
|
||
|
|
var localStart = start - this.fStart;
|
||
|
|
},
|
||
|
|
getLayout: function(){
|
||
|
|
}
|
||
|
|
}
|
||
|
|
*/
|
||
|
|
|
||
|
|
|
||
|
|
var LineBreakMeasurer = function(paper, text, fontAttrs){
|
||
|
|
this.paper = paper;
|
||
|
|
this.text = new AttributedStringIterator(text);
|
||
|
|
this.fontAttrs = fontAttrs;
|
||
|
|
|
||
|
|
if (this.text.getEndIndex() - this.text.getBeginIndex() < 1) {
|
||
|
|
throw {message: "Text must contain at least one character.", code: "IllegalArgumentException"};
|
||
|
|
}
|
||
|
|
|
||
|
|
//this.measurer = new TextMeasurer(paper, this.text, this.fontAttrs);
|
||
|
|
this.limit = this.text.getEndIndex();
|
||
|
|
this.pos = this.start = this.text.getBeginIndex();
|
||
|
|
|
||
|
|
this.rafaelTextObject = this.paper.text(100, 100, this.text.text).attr(fontAttrs).attr("text-anchor", "start");
|
||
|
|
this.svgTextObject = this.rafaelTextObject[0];
|
||
|
|
};
|
||
|
|
LineBreakMeasurer.prototype = {
|
||
|
|
nextOffset: function(wrappingWidth, offsetLimit, requireNextWord) {
|
||
|
|
//console.group("[nextOffset]");
|
||
|
|
var nextOffset = this.pos;
|
||
|
|
if (this.pos < this.limit) {
|
||
|
|
if (offsetLimit <= this.pos) {
|
||
|
|
throw {message: "offsetLimit must be after current position", code: "IllegalArgumentException"};
|
||
|
|
}
|
||
|
|
|
||
|
|
var charAtMaxAdvance = this.getLineBreakIndex(this.pos, wrappingWidth);
|
||
|
|
//charAtMaxAdvance --;
|
||
|
|
//console.log("charAtMaxAdvance:", charAtMaxAdvance, ", [" + this.text.getCharAtPos(charAtMaxAdvance) + "]");
|
||
|
|
|
||
|
|
if (charAtMaxAdvance == this.limit) {
|
||
|
|
nextOffset = this.limit;
|
||
|
|
//console.log("charAtMaxAdvance == this.limit");
|
||
|
|
} else if (this.text.isNewLine(charAtMaxAdvance)) {
|
||
|
|
console.log("isNewLine");
|
||
|
|
nextOffset = charAtMaxAdvance+1;
|
||
|
|
} else if (this.text.isWhitespace(charAtMaxAdvance)) {
|
||
|
|
// TODO: find next noSpaceChar
|
||
|
|
//return nextOffset;
|
||
|
|
nextOffset = this.text.following(charAtMaxAdvance);
|
||
|
|
} else {
|
||
|
|
// Break is in a word; back up to previous break.
|
||
|
|
/*
|
||
|
|
var testPos = charAtMaxAdvance + 1;
|
||
|
|
if (testPos == this.limit) {
|
||
|
|
console.error("hbz...");
|
||
|
|
} else {
|
||
|
|
nextOffset = this.text.preceding(charAtMaxAdvance);
|
||
|
|
}
|
||
|
|
*/
|
||
|
|
nextOffset = this.text.preceding(charAtMaxAdvance);
|
||
|
|
|
||
|
|
if (nextOffset <= this.pos) {
|
||
|
|
nextOffset = Math.max(this.pos+1, charAtMaxAdvance);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
if (nextOffset > offsetLimit) {
|
||
|
|
nextOffset = offsetLimit;
|
||
|
|
}
|
||
|
|
//console.log("nextOffset: " + nextOffset);
|
||
|
|
//console.groupEnd();
|
||
|
|
return nextOffset;
|
||
|
|
},
|
||
|
|
nextLayout: function(wrappingWidth) {
|
||
|
|
//console.groupCollapsed("[nextLayout]");
|
||
|
|
if (this.pos < this.limit) {
|
||
|
|
var requireNextWord = false;
|
||
|
|
var layoutLimit = this.nextOffset(wrappingWidth, this.limit, requireNextWord);
|
||
|
|
//console.log("layoutLimit:", layoutLimit);
|
||
|
|
if (layoutLimit == this.pos) {
|
||
|
|
//console.groupEnd();
|
||
|
|
return null;
|
||
|
|
}
|
||
|
|
var result = this.text.getLayout(this.pos, layoutLimit);
|
||
|
|
//console.log("layout: \"" + result + "\"");
|
||
|
|
|
||
|
|
// remove end of line
|
||
|
|
|
||
|
|
//var posEndOfLine = this.text.getEndIndex(this.pos);
|
||
|
|
//if (posEndOfLine < result.length)
|
||
|
|
// result = result.substr(0, posEndOfLine);
|
||
|
|
|
||
|
|
this.pos = layoutLimit;
|
||
|
|
|
||
|
|
//console.groupEnd();
|
||
|
|
return result;
|
||
|
|
} else {
|
||
|
|
//console.groupEnd();
|
||
|
|
return null;
|
||
|
|
}
|
||
|
|
},
|
||
|
|
getLineBreakIndex: function(pos, wrappingWidth) {
|
||
|
|
//console.group("[getLineBreakIndex]");
|
||
|
|
//console.log("pos:"+pos + ", text: \""+ this.text.text.replace(/\n/g, "_").substr(pos, 1) + "\"");
|
||
|
|
|
||
|
|
var bb = this.rafaelTextObject.getBBox();
|
||
|
|
|
||
|
|
var charNum = -1;
|
||
|
|
try {
|
||
|
|
var svgPoint = this.svgTextObject.getStartPositionOfChar(pos);
|
||
|
|
//var dot = this.paper.ellipse(svgPoint.x, svgPoint.y, 1, 1).attr({"stroke-width": 0, fill: Color.blue});
|
||
|
|
svgPoint.x = svgPoint.x + wrappingWidth;
|
||
|
|
//svgPoint.y = bb.y;
|
||
|
|
//console.log("svgPoint:", svgPoint);
|
||
|
|
|
||
|
|
//var dot = this.paper.ellipse(svgPoint.x, svgPoint.y, 1, 1).attr({"stroke-width": 0, fill: Color.red});
|
||
|
|
|
||
|
|
charNum = this.svgTextObject.getCharNumAtPosition(svgPoint);
|
||
|
|
} catch (e){
|
||
|
|
console.warn("getStartPositionOfChar error, pos:" + pos);
|
||
|
|
/*
|
||
|
|
var testPos = pos + 1;
|
||
|
|
if (testPos < this.limit) {
|
||
|
|
return testPos
|
||
|
|
}
|
||
|
|
*/
|
||
|
|
}
|
||
|
|
//console.log("charNum:", charNum);
|
||
|
|
if (charNum == -1) {
|
||
|
|
//console.groupEnd();
|
||
|
|
return this.text.getEndIndex(pos);
|
||
|
|
} else {
|
||
|
|
// When case there is new line between pos and charnum then use this new line
|
||
|
|
var newLineIndex = this.text.getEndIndex(pos);
|
||
|
|
if (newLineIndex < charNum ) {
|
||
|
|
console.log("newLineIndex <= charNum, newLineIndex:"+newLineIndex+", charNum:"+charNum, "\"" + this.text.text.substr(newLineIndex+1).replace(/\n/g, "↵") + "\"");
|
||
|
|
//console.groupEnd();
|
||
|
|
|
||
|
|
return newLineIndex;
|
||
|
|
}
|
||
|
|
|
||
|
|
//var charAtMaxAdvance = this.text.text.substring(charNum, charNum + 1);
|
||
|
|
var charAtMaxAdvance = this.text.getCharAtPos(charNum);
|
||
|
|
//console.log("!!charAtMaxAdvance: " + charAtMaxAdvance);
|
||
|
|
//console.groupEnd();
|
||
|
|
return charNum;
|
||
|
|
}
|
||
|
|
},
|
||
|
|
getPosition: function() {
|
||
|
|
return this.pos;
|
||
|
|
}
|
||
|
|
};
|
||
|
|
|
||
|
|
|
||
|
|
|
||
|
|
// ******
|
||
|
|
function drawMultilineText(text, x, y, boxWidth, boxHeight, options) {
|
||
|
|
var TEXT_PADDING = 3;
|
||
|
|
var width = boxWidth - (2 * TEXT_PADDING);
|
||
|
|
if (boxHeight)
|
||
|
|
var height = boxHeight - (2 * TEXT_PADDING);
|
||
|
|
|
||
|
|
var layouts = [];
|
||
|
|
|
||
|
|
var measurer = new LineBreakMeasurer(paper, text, font);
|
||
|
|
var lineHeight = measurer.rafaelTextObject.getBBox().height;
|
||
|
|
console.log("text: ", text.replace(/\n/g, "↵"));
|
||
|
|
|
||
|
|
if (height) {
|
||
|
|
var availableLinesCount = parseInt(height/lineHeight);
|
||
|
|
console.log("availableLinesCount: " + availableLinesCount);
|
||
|
|
}
|
||
|
|
|
||
|
|
var i = 1;
|
||
|
|
while (measurer.getPosition() < measurer.text.getEndIndex()) {
|
||
|
|
var layout = measurer.nextLayout(width);
|
||
|
|
//console.log("LAYOUT: " + layout + ", getPosition: " + measurer.getPosition());
|
||
|
|
|
||
|
|
if (layout != null) {
|
||
|
|
if (!availableLinesCount || i < availableLinesCount) {
|
||
|
|
layouts.push(layout);
|
||
|
|
} else {
|
||
|
|
layouts.push(fitTextToWidth(layout + "...", boxWidth));
|
||
|
|
break;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
i++;
|
||
|
|
};
|
||
|
|
console.log(layouts);
|
||
|
|
|
||
|
|
measurer.rafaelTextObject.attr({"text": layouts.join("\n")});
|
||
|
|
//measurer.rafaelTextObject.attr({"text-anchor": "end"});
|
||
|
|
//measurer.rafaelTextObject.attr({"text-anchor": "middle"});
|
||
|
|
if (options)
|
||
|
|
measurer.rafaelTextObject.attr({"text-anchor": options["text-anchor"]});
|
||
|
|
|
||
|
|
var bb = measurer.rafaelTextObject.getBBox();
|
||
|
|
//measurer.rafaelTextObject.attr({"x": x + boxWidth/2});
|
||
|
|
if (options["vertical-align"] == "top")
|
||
|
|
measurer.rafaelTextObject.attr({"y": y + bb.height/2 + TEXT_PADDING});
|
||
|
|
else
|
||
|
|
measurer.rafaelTextObject.attr({"y": y + height/2});
|
||
|
|
//var bb = measurer.rafaelTextObject.getBBox();
|
||
|
|
|
||
|
|
if (measurer.rafaelTextObject.attr("text-anchor") == "middle" )
|
||
|
|
measurer.rafaelTextObject.attr("x", x + boxWidth/2 + TEXT_PADDING/2);
|
||
|
|
else if (measurer.rafaelTextObject.attr("text-anchor") == "end" )
|
||
|
|
measurer.rafaelTextObject.attr("x", x + boxWidth + TEXT_PADDING/2);
|
||
|
|
else
|
||
|
|
measurer.rafaelTextObject.attr("x", x + boxWidth/2 - bb.width/2 + TEXT_PADDING/2);
|
||
|
|
|
||
|
|
var boxStyle = {stroke: Color.LightSteelBlue2, "stroke-width": 1.0, "stroke-dasharray": "- "};
|
||
|
|
/*
|
||
|
|
var box = paper.rect(x+.0 + boxWidth/2 - bb.width/2+ TEXT_PADDING/2, y + .5 + boxHeight/2 - bb.height/2, width, height).attr(boxStyle);
|
||
|
|
box.attr("height", bb.height);
|
||
|
|
*/
|
||
|
|
//var box = paper.rect(bb.x - .5 + bb.width/2 + TEXT_PADDING, bb.y + bb.height/2, bb.width, bb.height).attr(boxStyle);
|
||
|
|
|
||
|
|
var textAreaCX = x + boxWidth/2;
|
||
|
|
var textAreaCY = y + height/2;
|
||
|
|
var dotLeftTop = paper.ellipse(x, y, 3, 3).attr({"stroke-width": 0, fill: Color.LightSteelBlue, stroke: "none"});
|
||
|
|
var dotCenter = paper.ellipse(textAreaCX, textAreaCY, 3, 3).attr({fill: Color.LightSteelBlue2, stroke: "none"});
|
||
|
|
|
||
|
|
/*
|
||
|
|
// real bbox
|
||
|
|
var bb = measurer.rafaelTextObject.getBBox();
|
||
|
|
var rect = paper.rect(bb.x+.5, bb.y + .5, bb.width, bb.height).attr({"stroke-width": 1});
|
||
|
|
*/
|
||
|
|
var boxStyle = {stroke: Color.LightSteelBlue2, "stroke-width": 1.0, "stroke-dasharray": "- "};
|
||
|
|
var rect = paper.rect(x+.5, y + .5, boxWidth, boxHeight).attr(boxStyle);
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
|
||
|
|
|
||
|
|
/*
|
||
|
|
for (var i=0; i<1; i++) {
|
||
|
|
var t = text;
|
||
|
|
//var t = "Высококвалифицирова";
|
||
|
|
|
||
|
|
var text = paper.text(300, 100, t).attr(font).attr("text-anchor", "start");
|
||
|
|
var bbText = text.getBBox();
|
||
|
|
paper.rect(300+.5, 100 + .5, bbText.width, bbText.height).attr({"stroke-width": 1});
|
||
|
|
console.log("t: ", t.replace(/\n/g, "↵"));
|
||
|
|
|
||
|
|
while (measurer.getPosition() < measurer.text.getEndIndex()) {
|
||
|
|
var layout = measurer.nextLayout(width);
|
||
|
|
//console.log("LAYOUT: " + layout + ", getPosition: " + measurer.getPosition());
|
||
|
|
if (layout != null)
|
||
|
|
layouts.push(layout);
|
||
|
|
};
|
||
|
|
|
||
|
|
measurer.rafaelTextObject.attr("text", layouts.join("\n"));
|
||
|
|
var bb = measurer.rafaelTextObject.getBBox();
|
||
|
|
var rect = paper.rect(bb.x+.5, bb.y + .5, bb.width, bb.height).attr({"stroke-width": 1});
|
||
|
|
|
||
|
|
lay.push(layouts);
|
||
|
|
console.log(layouts);
|
||
|
|
}
|
||
|
|
*/
|
||
|
|
|
||
|
|
|
||
|
|
var fitTextToWidth = function(original, width) {
|
||
|
|
var text = original;
|
||
|
|
|
||
|
|
// TODO: move attr on parameters
|
||
|
|
var attr = {font: "11px Arial", opacity: 0};
|
||
|
|
|
||
|
|
// remove length for "..."
|
||
|
|
var dots = paper.text(0, 0, "...").attr(attr).hide();
|
||
|
|
var dotsBB = dots.getBBox();
|
||
|
|
|
||
|
|
var maxWidth = width - dotsBB.width;
|
||
|
|
|
||
|
|
var textElement = paper.text(0, 0, text).attr(attr).hide();
|
||
|
|
var bb = textElement.getBBox();
|
||
|
|
|
||
|
|
// it's a little bit incorrect with "..."
|
||
|
|
while (bb.width > maxWidth && text.length > 0) {
|
||
|
|
text = text.substring(0, text.length - 1);
|
||
|
|
textElement.attr({"text": text});
|
||
|
|
bb = textElement.getBBox();
|
||
|
|
}
|
||
|
|
|
||
|
|
// remove element from paper
|
||
|
|
textElement.remove();
|
||
|
|
|
||
|
|
if (text != original) {
|
||
|
|
text = text + "...";
|
||
|
|
}
|
||
|
|
|
||
|
|
return text;
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
var x=100, y=90, height=20;
|
||
|
|
var options = {"text-anchor": "middle", "boxHeight": 150, "vertical-align": "top"};
|
||
|
|
var options = {"boxHeight": 150, "vertical-align": "top"};
|
||
|
|
drawMultilineText(text, x, y, 150, 100, options);
|
||
|
|
};
|