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- // Calculator
- // ----------
- _r.calc_dialog = null;
- _r.show_calc = function(tab, colnames, coltypes, add_idx) {
- if(!add_idx) add_idx = 0;
- if(!tab || !tab.rows.length) { msgprint("No Data"); return; }
-
- if(!_r.calc_dialog) {
- var d = new Dialog(400,400,"Calculator")
- d.make_body([
- ['Select','Column']
- ,['Data','Sum']
- ,['Data','Average']
- ,['Data','Min']
- ,['Data','Max']
- ])
- d.widgets['Sum'].readonly = 'readonly';
- d.widgets['Average'].readonly = 'readonly';
- d.widgets['Min'].readonly = 'readonly';
- d.widgets['Max'].readonly = 'readonly';
- d.widgets['Column'].onchange = function() {
- d.set_calc();
- }
- d.set_calc = function() {
- // get the current column of the data table
- var cn = sel_val(this.widgets['Column']);
- var cidx = 0; var sum=0; var avg=0; var minv = null; var maxv = null;
- for(var i=0;i<this.colnames.length;i++) {if(this.colnames[i]==cn){ cidx=i+add_idx; break; } }
- for(var i=0; i<this.datatab.rows.length; i++) {
- var c = this.datatab.rows[i].cells[cidx];
- var v = c.div ? flt(c.div.innerHTML) : flt(c.innerHTML);
- sum += v;
- if(minv == null) minv = v;
- if(maxv == null) maxv = v;
- if(v > maxv)maxv = v;
- if(v < minv)minv = v;
- }
- d.widgets['Sum'].value = fmt_money(sum);
- d.widgets['Average'].value = fmt_money(sum / this.datatab.rows.length);
- d.widgets['Min'].value = fmt_money(minv);
- d.widgets['Max'].value = fmt_money(maxv);
- _r.calc_dialog = d;
- }
- d.onshow = function() {
- // set columns
- var cl = [];
- for(var i in _r.calc_dialog.colnames) {
- if(in_list(['Currency','Int','Float'],_r.calc_dialog.coltypes[i]))
- cl.push(_r.calc_dialog.colnames[i]);
- }
- if(!cl.length) {
- this.hide();
- alert("No Numeric Column");
- return;
- }
- var s = this.widgets['Column'];
- empty_select(s);
- add_sel_options(s, cl);
- if(s.inp)s.inp.value = cl[0];
- else s.value = cl[0];
- this.set_calc();
- }
- _r.calc_dialog = d;
- }
- _r.calc_dialog.datatab = tab;
- _r.calc_dialog.colnames = colnames;
- _r.calc_dialog.coltypes = coltypes;
- _r.calc_dialog.show();
- }
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