I'm using pdfmake to generate a document that contains a number of sub-documents, e.g. a PDF containing invoices; each invoice is a logical document inside the PDF document.
I have a requirement that in the footer or header of each page I show "Page of " where both those numbers are relative to a single invoice, and not the overall document.
The header and footer callbacks look good, but only specify the page number and count relative to the entire document, and the pageBreakBefore callback doesn't generate anything like the documented information, and in any case I can't figure out how I could use it here.
This doesn't seem like a unique requirement, so hopefully I'm just missing something obvious.
Thanks!
I believe that pdkmake's header and footer function's arguments can only contain the global pageCount.
There is however a way to reproduce the behavior that you want, if you handle manually the pageBreaks :
const realPageIndexes = [];
let currSubPdfIdx = 0;
let currPageCountForSubPdf = 0;
const getPageBreak = (newSubPdfIdx: number) => {
if (currSubPdfIdx !== newSubPdfIdx) {
currSubPdfIdx = newSubPdfIdx;
currPageCountForSubPdf = 0;
} else {
currPageCountForSubPdf += 1;
}
realPageIndexes.push(currPageCountForSubPdf);
return {text: '', pageBreak: 'after'}; // return elem causing the pageBreak
}
The footer function, filling the page numbers, is called once the document definition generation is done.
If you handle every overflow by yourself, by calling getPageBreak(currentSubPdfIndex) at the end of each page, you will end up knowing which sub-Pdf is displayed in each page :
I display part of the 1rst subPdf in page 1:
I display the end of 1rst subPdf in page 2
I display 2nd subPdf in page3
I display 3rd subPdf in page4 ....
.
let subPdfIdx = 0;
pdfContent.push(subPdf1FirstPart)
pdfContent.push(getPageBreak(subPdfIdx))
pdfContent.push(subPdf1SecondPart)
pdfContent.push(getPageBreak(subPdfIdx))
subPdfIdx++;
pdfContent.push(subPdf2)
pdfContent.push(getPageBreak(subPdfIdx))
subPdfIdx++;
pdfContent.push(subPdf3)
pdfContent.push(getPageBreak(subPdfIdx))
realPageIndexes[] then looks like :
[ 1, 1, 2, 3 ];
The only step left is to tell the footer function to use the page counts we just created instead of the global page count :
const documentDefinition = {
content: [YOUR CONTENT],
footer: (currPage, allPages) => 'subPdf index is ' + realPageIndexes[currPage];
}
Please note that this method will fail if you don't handle overflows correctly:
if for example a paragraph is too big to fit a page, and you call getPageBreak() after that, pdfmake will automatically create a new page for the end of the paragraph (page which is untracked in our realPageIndexes) and then add the page caused by your getPageBreak() right after the end of the text. So just make sure not to overflow the page :)
Related
I use FlowRow in the accompanist project to auto wrap my text items to next line. It works as intended. However, when I have a large dataset (which I already load with paging), I don't find an api like LazyColumn to load and build the items as needed, if I loop through the pager flow, it tries to load to build everything at once. Any adice please?
lazyPagingItems = pager.flow.collectAsLazyPagingItems()
FlowRow(
) {
val items = lazyPagingItems
for (index in 1..items.itemCount-1) {
Text(
text = word,
maxLines = 1
)
}
}
Little late to the party. But it seems you could use LazyVerticalGrid or LazyHorizontalGrid in adaptive mode like below.
LazyVerticalGrid(
columns = GridCells.Adaptive(/* item min size */)
) {
// Items
}
I'm using the angularjs ui-grid and I have a "total" row that I want to pin to the top of the grid no matter what is the current sorting.
How can I accomplish that?
I think this is what you are looking for : Row Pinning
Essentially add another hidden column, something like this:
{
field: 'pinned',
visible: false,
sort: {direction: uiGridConstants.ASC, priority: 0}, //use uiGridConstants.DESC for pinning to the bottom
suppressRemoveSort: true,
sortDirectionCycle: [uiGridConstants.ASC] //use uiGridConstants.DESC for pinning to the bottom
}
Row entities which have pinned = true rise to the top, even when other sorting are applied.
DISCLAIMER: I know it's not exactly answers the question, but this is how I solved it for now until I'll have a better solution:
Create an other grid above the main grid :
<div style="height:30px" ui-grid="totalGridOptions"></div>
<div ui-grid="gridOptions" class="grid"></div>
with definitions:
$scope.totalGridOptions = {showHeader:false,enableHorizontalScrollbar:false};
and then bind the columns of the main grid to the total grid (for width and other adjustments):
$scope.$watch('gridOptions', function (newVal) {
$scope.totalGridOptions.columnDefs = newVal.columnDefs;
}, true);
I think you should use something like this
$scope.gridOptions.data.unshift({label:value});
unshift adds it to the top
Edit 2 / Actual Solution: The way I finally settled this issue was by using custom header cell templates. I essentially create a second header row by adding a div at the bottom of what was previously my header. Here's a simple version:
<div class="super-special-header>
<div class="header-display-name">{{col.displayName}}</div>
<div class="totals-row">{{grid.appScope.totals[col.field]}}</div>
</div>
I store my totals on the controller's $scope and can access them in that div with grid.appScope.totals[whateverThisColumnIs]. This way I can still update them dynamically, but they don't get mixed into a sort function like my previous 'solution' was aiming for.
Edit 1 / Dead-end 'solution': Just ran into a problem with my solution, if your table is long (you have to scroll to get to bottom rows), the totals row will scroll out of view. Going to leave this 'solution' here so no one else makes the same mistake!
I had this same issue but with a twist. Since I was going to need to change the default sorting algorithms for many of the columns anyway, I set my algorithm up to skip the first element in the sort. You can use the sortingAlgorithm property on any columndef that would be part of a sortable column. This is really only a solution if you have only a few sortable columns though. It becomes unmaintainable for huge tables.
I couldn't find any built-in feature for ui-grid to keep a specific row at the top of the grid when sorting is applied. But this could be done using sortingAlgorithm parameter in the columnDefs( please refer to http://ui-grid.info/docs/#!/tutorial/Tutorial:%20102%20Sorting).
I have written an algorithm which keeps the row('total' is the particular cell value in the row) at the top of the grid without applying a sorting.
var sortingAlgorithm = function (a, b, rowA, rowB, direction) {
if (direction == 'total') {
if (a == 'total') {
return 0;
}
return (a < b) ? -1 : 1;
} else {
if (a == 'total') {
return 0;
}
if (b == 'total') {
return 1;
}
}
}
Scrolling a div that is within a .sortable() container will start dragging the div when you release the scrollbar
In the fiddle, there are 3 different sortables, 1 of them is a scrolling one
http://jsfiddle.net/wnHWH/1/
Bug: click on the scrollbar and drag it up or down to scroll through the content, when you release the mouse, the div starts to drag, which makes it follow your mouse around and there is no way to unstick it without refreshing the page.
You can use .mousemove event of jquery like this:
$('#sortable div').mousemove(function(e) {
width = $(this).width();
limit = width - 20;
if(e.offsetX < width && e.offsetX > limit)
$('#sortable').sortable("disable");
else
$('#sortable').sortable("enable");
});
I have create fiddle that works here http://jsfiddle.net/aanred/FNzEF/. Hope it meets your need.
sortable() can specify a selector for a handle much like draggable() does. Then only the matched elements get the click events. You specify the handle selector like this:
$('#sortable').sortable( {handle : '.handle'});
You already have most of what you need for the rest. The inner div on your overflowing element makes a suitable handle, like this:
<div style="height: 200px;overflow:auto">
<div class="handle" style="height: 300;">
blah
blah
blah
Then you need to restore the sortability of everything else. You'd think you could just give those divs the handle class, but it's looking for children, so you need to wrap all of them like so:
<div><div class="handle">asadf</div></div>
Modified fiddle
Supplement to SubRed's answer:
This worked perfectly for my needs. However, rather than rely on the width of the scrollbar being 20 pixels (as above), I used the code from:
How can I get the browser's scrollbar sizes?
This allows the code to handle different scrollbar widths on different setups. The code is pasted here for convenience:
function getScrollBarWidth ()
{
var inner = document.createElement('p');
inner.style.width = "100%";
inner.style.height = "200px";
var outer = document.createElement('div');
outer.style.position = "absolute";
outer.style.top = "0px";
outer.style.left = "0px";
outer.style.visibility = "hidden";
outer.style.width = "200px";
outer.style.height = "150px";
outer.style.overflow = "hidden";
outer.appendChild (inner);
document.body.appendChild (outer);
var w1 = inner.offsetWidth;
outer.style.overflow = 'scroll';
var w2 = inner.offsetWidth;
if (w1 == w2) w2 = outer.clientWidth;
document.body.removeChild (outer);
return (w1 - w2);
}
I've also used the width value for the height of the scrollbar and modified SubRed's code to suit. This now works with one or both scrollbars.
I also used code from:
Detecting presence of a scroll bar in a DIV using jQuery?
To determine the presence of either scroll bar and adapted the turning on/off of the sortable code accordingly.
Many thanks.
(am using PHPExcel 1.7.8)
I create a sheet and populate it with a table of numeric data. Then Excel refuses to apply conditional formatting of the 3-color-transition type to the numeric data.
That means, too:
1) I can use conditional formatting of the "top 10 values" kind
2) If I populate right next to the generated table few cells with numbers then I can use the cond formatting of transitional kind
3) If I copy two cells from the generated table somewhere else in a simple copy/paste fashion still can't use the transitional formatting
4) If I copy two cells from the generated table somewhere else using the "just the value"-pasting I do can use the transitional formatting
Another important observation here is, that when I select a cell of the generated table and click into the value bar - right at that moment - the cell changes its color to what it should be regarding the conditional formatting!
This is somewhat similar to another phenomena I observed with PHPExcel generated spreadsheets. Sometimes it happens that, when I double click into a cell to get into editing mode - the cell turns pit black. But still I can change the value.
There seems to be something wrong with how a cell is represented in the Excel-file I guess. Something related to the control of the coloring ... !?
I could of course copy/(value-)paste everything. But maybe I am just using PHPExcel the wrong way? Or there is a quick way to convert an Excel file at once in a useful way?
The full code I use is this:
$excelWorkbook = null;
if(file_exists($filename)) {
$reader = PHPExcel_IOFactory::createReader("Excel2007");
$excelWorkbook = $reader->load($filename);
} else {
$excelWorkbook = new PHPExcel();
}
$sheet = $excelWorkbook->getSheetByName($tabName);
if ($sheet !== null) {
$excelWorkbook->removeSheetByIndex($excelWorkbook->getIndex($sheet));
}
$sheet = new PHPExcel_Worksheet($excelWorkbook, $tabName);
$sheet = $excelWorkbook->addSheet($sheet);
$columns = array_keys($targetArray);
$rows = array_keys($targetArray[$columns[0]]);
for($i = 0; $i < count($columns); $i++){
$sheet->setCellValueByColumnAndRow($i+1,1,$columns[$i]);
}
for($i = 0; $i < count($rows); $i++){
$sheet->setCellValueByColumnAndRow(0,$i+2,$rows[$i]);
}
for($i = 0; $i < count($columns); $i++){
for($j = 0; $j < count($rows); $j++) {
$sheet->setCellValueByColumnAndRow($i+1, $j+2, $targetArray[$columns[$i]][$rows[$j]]);
}
}
$excelWorkbook->setActiveSheetIndex($excelWorkbook->getIndex($sheet));
$xlsx = new PHPExcel_Writer_Excel2007($excelWorkbook);
$xlsx->save($filename);
The workaround-type solution is to select all cells in the respective sheet and choose for background color 'none'.
Apparently the cells are colored white and this coloring overlays the conditional coloring.
This may be a bug due to the fact that for solid fills in cells Excel reverses the meaning of foreground and background colours but in conditional (dxf) formats it doesn't.
Or, to put it another way background and foreground are stored differently for cell and conditional formats.
I encountered this issue in the Perl Excel::Writer::XLSX module.
I have a table of many rows in a JQuery UI accordion.
I dynamically append the table this way:
var resJson = JSON.parse(connector.process(JSON.stringify(reqJson)));
for ( var i in resJson.entryArrayM) {
// test if entry has already been displayed
if ($("#resultTr_" + resJson.entryArrayM[i].id) == null)
continue;
$("#resultTable > tbody:last").append(listEntry.buildEntryRow(resJson.entryArrayM[i]));
}
Firstly I check if a row of the same tr id already exists. If not, I would append to the last row of the table.
It works. But the problem is: every time a row is appended, the accordion would scroll to the first row of the table. Since the table is remarkably long, it makes users inconvenient to scroll down again and again to watch newly-added rows. So how to avoid this?
First of all, just do one append rather than appending every time through the loop:
var resJson = JSON.parse(connector.process(JSON.stringify(reqJson)));
var seen = { };
var rows = [ ];
var trId = null;
for(var i in resJson.entryArrayM) {
// test if entry has already been displayed
var trId = 'resultTr_' + resJson.entryArrayM[i].id;
if($('#' + trId).length != 0
|| seen[trId])
continue;
rows.push(listEntry.buildEntryRow(resJson.entryArrayM[i]));
seen[trId] = true;
}
$("#resultTable > tbody:last").append(rows.join(''));
Also note that I corrected your existence test, $(x) returns an empty object when x doesn't match anything, not null. Not only is this a lot more efficient but you'll only have one scroll position change to deal with.
Solving your scrolling issue is fairly simple: find out what element is scrolling, store its scrollTop before your append, and reset its scrollTop after the append:
var $el = $('#whatever-is-scrolling');
var scrollTop = $el[0].scrollTop;
$("#resultTable > tbody:last").append(rows.join('')); // As above.
$el[0].scrollTop = scrollTop;
There might be a slight visible flicker but hopefully that will be lost in the noise of altering the table.
You could also try setting the table-layout CSS property of the <table> to fixed. That will keep the table from trying to resize its width or the width of its columns and that might stop the scrolling behavior that you're seeing. The downside is that you'll have to handle the column sizing yourself. But, you could try setting table-layout:fixed immediately before your append operation to minimize the hassle.