mirror of
https://github.com/invoiceninja/invoiceninja.git
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381 lines
12 KiB
JavaScript
Executable File
381 lines
12 KiB
JavaScript
Executable File
/** ====================================================================
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* jsPDF Cell plugin
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* Copyright (c) 2013 Youssef Beddad, youssef.beddad@gmail.com
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* 2013 Eduardo Menezes de Morais, eduardo.morais@usp.br
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*
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* Permission is hereby granted, free of charge, to any person obtaining
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* a copy of this software and associated documentation files (the
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* "Software"), to deal in the Software without restriction, including
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* without limitation the rights to use, copy, modify, merge, publish,
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* distribute, sublicense, and/or sell copies of the Software, and to
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* permit persons to whom the Software is furnished to do so, subject to
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* the following conditions:
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*
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* The above copyright notice and this permission notice shall be
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* included in all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
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* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
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* LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
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* OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
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* WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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* ====================================================================
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*/
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(function (jsPDFAPI) {
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'use strict';
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/*jslint browser:true */
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/*global document: false, jsPDF */
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var fontName,
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fontSize,
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fontStyle,
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padding = 3,
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margin = 13,
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headerFunction,
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lastCellPos = { x: undefined, y: undefined, w: undefined, h: undefined, ln: undefined },
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pages = 1,
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setLastCellPosition = function (x, y, w, h, ln) {
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lastCellPos = { 'x': x, 'y': y, 'w': w, 'h': h, 'ln': ln };
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},
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getLastCellPosition = function () {
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return lastCellPos;
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};
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jsPDFAPI.setHeaderFunction = function (func) {
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headerFunction = func;
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};
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jsPDFAPI.getTextDimensions = function (txt) {
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fontName = this.internal.getFont().fontName;
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fontSize = this.internal.getFontSize();
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fontStyle = this.internal.getFont().fontStyle;
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// 1 pixel = 0.264583 mm and 1 mm = 72/25.4 point
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var px2pt = 0.264583 * 72 / 25.4,
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dimensions,
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text;
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text = document.createElement('font');
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text.id = "jsPDFCell";
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text.style.fontStyle = fontStyle;
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text.style.fontName = fontName;
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text.style.fontSize = fontSize + 'pt';
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text.innerText = txt;
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document.body.appendChild(text);
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dimensions = { w: (text.offsetWidth + 1) * px2pt, h: (text.offsetHeight + 1) * px2pt};
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document.body.removeChild(text);
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return dimensions;
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};
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jsPDFAPI.cellAddPage = function () {
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this.addPage();
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setLastCellPosition(undefined, undefined, undefined, undefined, undefined);
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pages += 1;
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};
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jsPDFAPI.cellInitialize = function () {
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lastCellPos = { x: undefined, y: undefined, w: undefined, h: undefined, ln: undefined };
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pages = 1;
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};
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jsPDFAPI.cell = function (x, y, w, h, txt, ln, align) {
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var curCell = getLastCellPosition();
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// If this is not the first cell, we must change its position
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if (curCell.ln !== undefined) {
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if (curCell.ln === ln) {
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//Same line
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x = curCell.x + curCell.w;
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y = curCell.y;
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} else {
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//New line
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if ((curCell.y + curCell.h + h + margin) >= this.internal.pageSize.height) {
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this.cellAddPage();
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if (this.printHeaders && this.tableHeaderRow) {
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this.printHeaderRow(ln);
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}
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}
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//We ignore the passed y: the lines may have diferent heights
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y = (getLastCellPosition().y + getLastCellPosition().h);
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}
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}
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if (txt[0] !== '') {
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if (this.printingHeaderRow) {
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this.rect(x, y, w, h, 'FD');
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} else {
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this.rect(x, y, w, h);
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}
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if (align === 'right') {
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if (txt instanceof Array) {
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for(var i = 0; i<txt.length; i++) {
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var currentLine = txt[i];
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var textSize = this.getStringUnitWidth(currentLine) * this.internal.getFontSize();
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this.text(currentLine, x + w - textSize - padding, y + this.internal.getLineHeight()*(i+1));
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}
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}
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} else {
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this.text(txt, x + padding, y + this.internal.getLineHeight());
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}
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}
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setLastCellPosition(x, y, w, h, ln);
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return this;
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};
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/**
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* Return an array containing all of the owned keys of an Object
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* @type {Function}
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* @return {String[]} of Object keys
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*/
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jsPDFAPI.getKeys = (typeof Object.keys === 'function')
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? function (object) {
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if (!object) {
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return [];
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}
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return Object.keys(object);
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}
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: function (object) {
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var keys = [],
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property;
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for (property in object) {
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if (object.hasOwnProperty(property)) {
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keys.push(property);
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}
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}
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return keys;
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};
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/**
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* Return the maximum value from an array
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* @param array
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* @param comparisonFn
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* @returns {*}
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*/
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jsPDFAPI.arrayMax = function (array, comparisonFn) {
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var max = array[0],
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i,
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ln,
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item;
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for (i = 0, ln = array.length; i < ln; i += 1) {
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item = array[i];
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if (comparisonFn) {
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if (comparisonFn(max, item) === -1) {
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max = item;
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}
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} else {
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if (item > max) {
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max = item;
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}
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}
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}
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return max;
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};
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/**
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* Create a table from a set of data.
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* @param {Object[]} data As array of objects containing key-value pairs
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* @param {String[]} [headers] Omit or null to auto-generate headers at a performance cost
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* @param {Object} [config.printHeaders] True to print column headers at the top of every page
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* @param {Object} [config.autoSize] True to dynamically set the column widths to match the widest cell value
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* @param {Object} [config.autoStretch] True to force the table to fit the width of the page
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*/
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jsPDFAPI.table = function (data, headers, config) {
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var headerNames = [],
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headerPrompts = [],
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header,
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autoSize,
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printHeaders,
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autoStretch,
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i,
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ln,
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columnMatrix = {},
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columnWidths = {},
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columnData,
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column,
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columnMinWidths = [],
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j,
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tableHeaderConfigs = [],
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model,
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jln,
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func;
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/**
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* @property {Number} lnMod
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* Keep track of the current line number modifier used when creating cells
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*/
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this.lnMod = 0;
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if (config) {
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autoSize = config.autoSize || false;
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printHeaders = this.printHeaders = config.printHeaders || true;
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autoStretch = config.autoStretch || true;
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}
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if (!data) {
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throw 'No data for PDF table';
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}
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// Set headers
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if (headers === undefined || (headers === null)) {
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// No headers defined so we derive from data
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headerNames = this.getKeys(data[0]);
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} else if (headers[0] && (typeof headers[0] !== 'string')) {
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// Split header configs into names and prompts
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for (i = 0, ln = headers.length; i < ln; i += 1) {
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header = headers[i];
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headerNames.push(header.name);
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headerPrompts.push(header.prompt);
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columnWidths[header.name] = header.width;
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}
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} else {
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headerNames = headers;
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}
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if (config.autoSize) {
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// Create Columns Matrix
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func = function (rec) {
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return rec[header];
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};
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for (i = 0, ln = headerNames.length; i < ln; i += 1) {
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header = headerNames[i];
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columnMatrix[header] = data.map(
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func
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);
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// get header width
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columnMinWidths.push(this.getTextDimensions(headerPrompts[i] || header).w);
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column = columnMatrix[header];
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// get cell widths
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for (j = 0, ln = column.length; j < ln; j += 1) {
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columnData = column[j];
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columnMinWidths.push(this.getTextDimensions(columnData).w);
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}
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// get final column width
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columnWidths[header] = jsPDFAPI.arrayMax(columnMinWidths);
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}
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}
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// -- Construct the table
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if (config.printHeaders) {
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var lineHeight = this.calculateLineHeight(headerNames, columnWidths, headerPrompts.length?headerPrompts:headerNames);
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// Construct the header row
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for (i = 0, ln = headerNames.length; i < ln; i += 1) {
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header = headerNames[i];
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tableHeaderConfigs.push([margin, margin, columnWidths[header], lineHeight, String(headerPrompts.length ? headerPrompts[i] : header)]);
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}
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// Store the table header config
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this.setTableHeaderRow(tableHeaderConfigs);
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// Print the header for the start of the table
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this.printHeaderRow(1);
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}
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// Construct the data rows
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for (i = 0, ln = data.length; i < ln; i += 1) {
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var lineHeight;
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model = data[i];
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lineHeight = this.calculateLineHeight(headerNames, columnWidths, model);
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for (j = 0, jln = headerNames.length; j < jln; j += 1) {
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header = headerNames[j];
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this.cell(margin, margin, columnWidths[header], lineHeight, model[header], i + 2, headers[j].align);
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}
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}
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return this;
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};
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/**
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* Calculate the height for containing the highest column
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* @param {String[]} headerNames is the header, used as keys to the data
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* @param {Integer[]} columnWidths is size of each column
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* @param {Object[]} model is the line of data we want to calculate the height of
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*/
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jsPDFAPI.calculateLineHeight = function (headerNames, columnWidths, model) {
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var header, lineHeight = 0;
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for (var j = 0; j < headerNames.length; j++) {
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header = headerNames[j];
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model[header] = this.splitTextToSize(String(model[header]), columnWidths[header] - padding);
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var h = this.internal.getLineHeight() * model[header].length + padding;
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if (h > lineHeight)
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lineHeight = h;
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}
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return lineHeight;
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};
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/**
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* Store the config for outputting a table header
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* @param {Object[]} config
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* An array of cell configs that would define a header row: Each config matches the config used by jsPDFAPI.cell
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* except the ln parameter is excluded
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*/
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jsPDFAPI.setTableHeaderRow = function (config) {
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this.tableHeaderRow = config;
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};
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/**
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* Output the store header row
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* @param lineNumber The line number to output the header at
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*/
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jsPDFAPI.printHeaderRow = function (lineNumber) {
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if (!this.tableHeaderRow) {
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throw 'Property tableHeaderRow does not exist.';
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}
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var tableHeaderCell,
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tmpArray,
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i,
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ln;
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this.printingHeaderRow = true;
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if (headerFunction !== undefined) {
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var position = headerFunction(this, pages);
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setLastCellPosition(position[0], position[1], position[2], position[3], -1);
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}
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this.setFontStyle('bold');
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for (i = 0, ln = this.tableHeaderRow.length; i < ln; i += 1) {
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this.setFillColor(200,200,200);
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tableHeaderCell = this.tableHeaderRow[i];
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tmpArray = [].concat(tableHeaderCell);
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this.cell.apply(this, tmpArray.concat(lineNumber));
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}
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this.setFontStyle('normal');
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this.printingHeaderRow = false;
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};
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})(jsPDF.API);
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