I am using SpreadSheetView of ControlsFX,
With that i am able to span rows/columns using the GridBase utility method like below,
getGrid().spanColumn(2, row, column);
Now, i want to remove this span and revert it to original .
How can i do that ?
I must confess I have not thought of anybody wanting to remove the span..
When you span some cells, the first cell is copied and pasted into the place of others in order to reflect the fact that it is spanning. Therefore, the previous cells are trashed. So the operation cannot be reverted.
But you could reverse the process by reducing the span value of the initial cell, and adding new proper cell in the places where the span is not present anymore.
Don't hesitate to post on our google group to have quicker response : https://groups.google.com/forum/?hl=en#!forum/controlsfx-dev
Related
I want to ask a question which is related to apache poi and generated file printing. What I am doing is I am opening a .docx file, inserting some data and saving and printing it.
I am having a file with only 1 table which is something like:
document table
Now, if there are 'n' items, I am generating n-1 rows which copies the format of row 3.
First item is inserted in row 3, if there's another item I am adding a row in the table and saving it likewise I am creating the rows.
Now I want to make this table length = page length. For this I am counting exactly how many rows this page can incorporate and based on that I am inserting empty lines without inside top and bottom border.
The file does not have any header/ footer or any other details as of now.
While I am creating the file I am shown the file which is coming in print preview of covering the whole page of size A4.
But this document is printed only on 80% of paper. I am having 0.3 cm margins but in print the whole page is not printed.
This does not seem to be the printer issue because if other software like Google Chrome are used then it prints the complete page.
So I want to ask that how can I solve this? I tried to search about this but till now I couldn't solve it. I think of this as an issue that whenever I am using XWPFDocument, its margins and all are changed set to default size. I don't know whether this is the issue or something other is, do I need to write some commands to preserve the margins and all or there's something that I need to do.
How can I solve this thing?
Thank you.
I am using iText 2.1.7
I write a pdf document for which the page size and contant can differ each time. What i want to achieve is a table at the very last page and at the bottom of that page. I am aware of the method 'writeSelectedRows', but with this it could happen that i overwrite text on the page, because i dont know if there is space for my table.
So in conclusion:
If i have reached the last page i want to add my table at the bottom of the page. But if the table does not fit, i want a new page and on this page i want to add the table at the bottom.
I could not find a solution so far.
Use this http://developers.itextpdf.com/de/node/1910 to calculate the height of a table and then check the available space on a page with PdfWriter.GetVerticalPostition(). You might want to consider your Document.BottomMargin or some other offset in your space calculation. (v4.1.6)
Check out this link:
http://developers.itextpdf.com/content/best-itext-questions-stackoverview/general-questions-about-itext/itext7-how-find-out-current-cursor-position-page
I suppose that once you know the current cursor position on this page, you can write a simple if-statement to add a new page, or not.
Kind regards,
Joris
My target is to display an abbreviation list with two entries per line: the abbreviation and the corresponding long version. For a nice layout I used a GridPane because of the vertical alignment over all entries - it's nice to read.
But I also want to scroll to the clicked abbreviation and set the focus on it like in a ListView version of it.
For example the # on page links in good old HTML. Is there another javafx layout element I miss to achieve this?
I don't believe there is a provided control that will work for the specific scenario you are describing. However, I think one of these options might work for you...
Use the TableView control and add two columns for the information you want to show (one for the abbreviation and another for the long version). TableViews also have the scrollTo and setFocus functionality you're looking for. Here is a good resource to get you started with the Tableview control. You can also style the Tableview with CSS to look less like a table and more like a list if thats what your intention is.
The second option is to set a custom cell factory on your ListView that builds custom cells using HBoxes, VBoxes, Labels, etc. to achieve your desired look. You would also want to use the cell factory to populate each ListView cell with an object that contains both the abbreviated text and long version text. A couple good resources, 1, 2
Although I think both option will work fine, I would suggest option 1 since in option 2 you are sort of building a table type structure anyway. I hope this is helpful!
In my form there is a JComboBox, and depending on what is selected I would like to add some additional rows (labels and JTextFields) to the form just below the JComboBox and push the rest of the fields that many rows lower. Is this possible with JGoodies DefaultFormBuilder (or any other technique), and if so how?
As far as I can tell there is no proper way. So what I ended up doing was creating a JPanel for each field with a BoderLayout. Then I added the max number of fields I would ever need to the form. Then when I needed to move fields down, I would remove them from the allocated JPanel's and push them to the ones below in a loop.
Not exactly the prettiest or most elegant but I couldn't find another solution at all...
I got a question about the NatTable SWT datagrid widget which I want to use to display a huge log file.
As the log file can be several GB in size, I cannot load it in memory entirely. The application should use as little heap space as possible. Thus, my IDataProvider implements its getDataValue method to read a log file line on the fly, with the help of a little caching mechanism and a cache for raw line positions within the file. When opening a file, almost nothing is known about its contents - not even the amount of rows the table will eventually have to display.
This leads to several problems which currently freak me out:
1) I have to estimate the total row count (using average line length) until the file has been scanned entirely and a maximum line count is really known for sure. As soon this is the case my getRowCount method returns the actual, correct number of rows. This seems to freak out the NatTable widget, it loses its current position entirely and jumps to row # 1!
2) When doing something intuitive as double-clicking on the border of a column (to auto-size the column, just like in Excel), my application freezes completely as suddenly ALL rows cells contents is queried using my provider and the whole concept is abused! I did not want anything to trigger a full file read!
Does anybody have some hints for me? The documentation is so little and so bad...
Any hint is greatly appreciated! How can I prevent my application from freezing??
Thanks!
1) Sounds like the selection isn't preserved when you change the row count - a row count change implies a backing data change hence it's probably playing safe and setting the selection to the first row. You could query the selected row before changing the row count and then reset the selection after you change the row count.
2) In order to figure out what the max-width of the column is, the table has to query each value for that cell in every row... Either you have to implement a paging mechanism such that you return something resulting in zero width when the row isn't visible, or you'll probably want to raise a bug against NatTable to request a feature for an auto-resize mode based on only the visible columns!