chore(*): changed excel column min width

Author: igdmdimitrov

projects/igniteui-angular/src/lib/services/excel/excel-exporter-options.ts

@@ -44,8 +44,8 @@ export class IgxExcelExporterOptions extends IgxExporterOptionsBase {
     }
 
     /**
-     * Sets the width of the columns in the exported excel file. If left unspecified or 0,
-     * the width of the largest string in the column will be used.
+     * Sets the width of the columns in the exported excel file. If left unspecified,
+     * the width of the column or the default width of the excel columns will be used.
      * ```typescript
      * this.exportOptions.columnWidth = 55;
      * ```

projects/igniteui-angular/src/lib/services/excel/excel-files.ts

@@ -55,7 +55,7 @@ export class ThemeFile implements IExcelFile {
  * @hidden
  */
 export class WorksheetFile implements IExcelFile {
-    private static MIN_WIDTH = 8.34;
+    private static MIN_WIDTH = 8.43;
     private maxOutlineLevel = 0;
     private dimension = '';
     private freezePane = '';
@@ -115,7 +115,7 @@ export class WorksheetFile implements IExcelFile {
                 let widthInTwips = worksheetData.options.columnWidth !== undefined ?
                                         worksheetData.options.columnWidth :
                                         Math.max(((width / 96) * 14.4), WorksheetFile.MIN_WIDTH);
-                if (widthInTwips === 0 || widthInTwips === null) {
+                if (!(widthInTwips > 0)) {
                     widthInTwips = WorksheetFile.MIN_WIDTH;
                 }
 
@@ -181,7 +181,7 @@ export class WorksheetFile implements IExcelFile {
                 let widthInTwips = worksheetData.options.columnWidth !== undefined ?
                                         worksheetData.options.columnWidth :
                                         Math.max(((width / 96) * 14.4), WorksheetFile.MIN_WIDTH);
-                if (widthInTwips === 0 || widthInTwips === null) {
+                if (!(widthInTwips > 0)) {
                     widthInTwips = WorksheetFile.MIN_WIDTH;
                 }
 

projects/igniteui-angular/src/lib/services/excel/test-data.service.spec.ts

@@ -346,7 +346,7 @@ export class FileContentData {
             `<tableColumn id="1" name="value"/></tableColumns>`;
 
         this._worksheetData = `<dimension ref="A1:A4"/><sheetViews><sheetView tabSelected="1" workbookViewId="0"></sheetView>` +
-            `</sheetViews><sheetFormatPr defaultRowHeight="15" x14ac:dyDescent="0.25"/><cols><col min="1" max="1" width="8.34" ` +
+            `</sheetViews><sheetFormatPr defaultRowHeight="15" x14ac:dyDescent="0.25"/><cols><col min="1" max="1" width="8.43" ` +
             `customWidth="1"/></cols><sheetData><row r="1"><c r="A1" t="s"><v>0</v></c></row><row r="2"><c r="A2" t="s"><v>1</v>` +
             `</c></row><row r="3"><c r="A3" t="s"><v>2</v></c></row><row r="4"><c r="A4" t="s"><v>3</v></c></row></sheetData>`;
 
@@ -611,11 +611,10 @@ export class FileContentData {
                 wsDataColSettings =
                     `<cols><col min="1" max="1" width="200" customWidth="1"/></cols>`;
                 break;
-            case undefined:
             case null:
             case 0:
                 wsDataColSettings =
-                    `<cols><col min="1" max="1" width="8.34" customWidth="1"/></cols>`;
+                    `<cols><col min="1" max="1" width="8.43" customWidth="1"/></cols>`;
                 break;
         }