Issue/linedash

examples/js/lines.js

@@ -23,4 +23,43 @@ doc.setLineWidth(1);
 doc.line(110, 20, 110, 60);
 
 doc.setLineWidth(1.5);
-doc.line(115, 20, 115, 60);
+doc.line(115, 20, 115, 60);
+
+doc.line(20, 20, 60, 20); // horizontal line
+
+doc.setLineWidth(0.5);
+doc.line(20, 25, 60, 25);
+
+doc.setLineWidth(1);
+doc.line(20, 30, 60, 30);
+
+doc.setLineWidth(1.5);
+doc.line(20, 35, 60, 35);
+
+doc.setDrawColor(255,0,0); // draw red lines
+
+doc.setLineWidth(0.1);
+doc.line(100, 20, 100, 60); // vertical line
+
+doc.setLineWidth(0.5);
+doc.line(105, 20, 105, 60);
+
+doc.setLineWidth(1);
+doc.line(110, 20, 110, 60);
+
+doc.setLineWidth(1.5);
+doc.line(115, 20, 115, 60);
+
+
+doc.text(10,110, "setLineDash");
+doc.setLineWidth(0.1)
+doc.setDrawColor(0,0,0);
+
+doc.setLineDash([2.5])
+doc.line(10,120,200,120)
+
+doc.setLineDash([1, 1.5, 1, 1.5, 1, 1.5, 3, 2, 3, 2, 3, 2 ])
+doc.line(10,125,200,125)
+
+doc.setLineDash([1, 1.5, 1, 1.5, 1, 1.5, 3, 2, 3, 2, 3, 2 ], 7.5)
+doc.line(10,130,200,130)

src/jspdf.js

@@ -2738,6 +2738,35 @@ var jsPDF = (function (global) {
       return this;
     };
 
+    /**
+     * Sets the dash pattern for upcoming lines.
+     * 
+     * To reset the settings simply call the method without any parameters.
+     * @param {array} dashArray The pattern of the line. 
+     * @param {number} dashPhase The phase at which the dash pattern starts.
+     * @function
+     * @instance
+     * @returns {jsPDF}
+     * @memberOf jsPDF
+     * @name setLineDash
+     */
+    var setLineDash = API.__private__.setLineDash = jsPDF.API.setLineDash = function (dashArray, dashPhase) {
+
+      if (Array.isArray(dashArray)) {
+        dashArray = dashArray.map(x => (x * k).toFixed(2)).join(' ');
+      } else {
+        dashArray = '';
+      }
+
+      if (typeof dashPhase === "number") {
+        dashPhase = (dashPhase * k).toFixed(2);
+      }
+
+      dashPhase = dashPhase || 0;
+      out('[' + dashArray + '] ' + dashPhase + ' d');
+      return this;
+    };
+
     var lineHeightFactor;
 
     var getLineHeight = API.__private__.getLineHeight = API.getLineHeight = function () {

tests/init/jspdf.unit.spec.js

@@ -442,7 +442,28 @@ describe('jsPDF unit tests', () => {
 
     expect(writeArray).toEqual(['1687.41 w']);
   });
-
+
+  it('jsPDF private function setLineDash', () => {
+    const doc = jsPDF()
+    var writeArray = [];
+    doc.__private__.setCustomOutputDestination(writeArray);
+    doc.__private__.setLineDash('');
+
+    expect(writeArray).toEqual(['[] 0 d']);
+
+    var writeArray = [];
+    doc.__private__.setCustomOutputDestination(writeArray);
+    doc.__private__.setLineDash('1 1', 1);
+
+    expect(writeArray).toEqual(['[1] 2.83 d']);
+
+    var writeArray = [];
+    doc.__private__.setCustomOutputDestination(writeArray);
+    doc.__private__.setLineDash([1,1], 1);
+
+    expect(writeArray).toEqual(['[2.83 2.83] 2.83 d']);
+  });
+
   it('jsPDF private function getLineHeight', () => {
     const doc = jsPDF()