Grouped table view -- section spacing - objective-c

In a grouped table view can I control the spacing between two sections?

Agree with 'viking'.. If you are still having troubles, I have noticed that if you create the table through IB it automatically creates a table header/footer section. If you go into the measurments(in IB) and decrease/increase the height of each section you will see the spacing between grouped sections change.

tableView:heightForHeaderInSection: and tableView:heightForFooterInSection:
together these control the space in between sections of a grouped UITableView. You cannot return 0, it will use the default value if you do, so use a small float (0.01) to reduce the space to almost nothing.

implement tableView:viewForHeaderInSection: or tableView:heightForHeaderInSection:

Related

How to fill available tableview width with columns?

When tableview is created, the default behaviour of columns is to leave a lot of empty space. Is there a way to automatically fill the space?
One solution is described here:
JavaFX 2 Automatic Column Width
but this seems a little cumbersome.
TornadoFX comes with an advanced column resize policy called SmartResize. You assign it to a TableView like this:
columnResizePolicy = SmartResize.POLICY
By default it tries to do something useful depending on the data, and it will assign any left over width to the last column.
You can configure resizing options per column by calling the appropriate configurator function. For example, to tell the policy to give remaining width to a given column:
column("Name", Person::nameProperty).remainingWidth()
You can configure multiple columns to receive remaning width, so that they will share the remaining width between them.
contentWidth() will make sure the column width fits the content, with optional additional padding: contentWidth(padding = 50.0).
Most resize options also take an optional useAsMin parameter which will enforce the given setting as a minimum width for the column. useAsMax does the same for max width. You will get a fixed size by setting both useAsMin and useAsMax or specifying the fixedWidth(width) option.
You can distribute space using the weigthedWidth(weightNum) function, or even the pctWidth(pctNum) function. All these modes can be combined
Please see the TornadoFX Guide chapter about the resize policy for more information:

Create WKInterfaceButton with image and left aligned text

I want to use a WKInterfaceButton for my watch app, that looks like the buttons in the watch settings:
with two main attributes:
It should contain a small image on the left
its title should be aligned to the left
I didn't found any possibility to align the title of a button to the left. I already tried to use a group instead (then it would work), but when I use a group I can't use the the shape of WKInterfaceButton.
Here's how I would do it...
Create a button
Make that button type a group
Within that button-group, place two groups inside it. The group on the left will contain the image. The group on the right will contain a label
So place an image in the left group, and a label in the right group.
Adjust the margins, length, heights of these groups until you get the desired look.
Give the button-group a length relative to container of "1" and a height of "size to fit content"
For the inner group that will contain the image, give it a length of relative to container of "0.2" (maybe)
For the inner group on the right that will contain the label, give it a length of relative to container of "0.8" (so that together the two groups make 1)
Give both groups a height of relative to container (1)
use WKInterfaceButton Content as Group and place image and label in it.
While i haven't tried this myself i think what you're looking for to match the watch settings is a table view. Define a table view in the interface controller of your story board and add your image and label to the row(s). There's an example of how to do this in the programming guide for apple kit.

Ellipsize NSTextField?

Is there a way to ellipsize the text content of an NSTextField, instead of truncate?
So instead of:
The quick brown fox jumped over
It would say:
The quick brown fox jumped ...
I can't find anything in the documentation for this. What am I missing?
UPDATE:
Is there any way to ellipsize AND wordwrap--in other words, have multiple lines and ellipsize the last?
So this is a great question! Even though its exposed in IB, its not a property on the view or any subview. Instead its buried as a property on the cell used by NSTextField. So if you ask that object for its cell, you can then read or set the value: lineBreakMode.
Look in the class description for NSCell for all the options - truncateCenter is one (to get center ellipsis).
EDIT: the following thoughts were prompted by the updated question. Personally, I think trying to get that google code is way overkill and perhaps you can do something less complex by creating a mini-custom textField.
create a customer NSView object and give it a string and font property and some methods related to the actions below, and perhaps even a width property
essentially the idea is to use the Cocoa NSString category that lets you determine the length of string (and probably its height) from a string/font combo (I use this in UIKit, did use equivalents in Cocoa, but its been a while...)
one of your view's methods will be 'calculate'. When you get this, covert the string to an array of words using a single space as the separator (or make it more complex). Then, start computing the length of the drawn string, taking the first work, append a space and the second, etc, until you find you have exceeded he width. This is your first line string.
continue doing this for the number of lines that you want to draw (2? 3?). Calculate the length of the unicode char that does ... - its option semicolon as I recall - and keep that around.
in the last line, keep adding words until you exceed the length, and then back up a word at a time, verifying that the last appended strings string (minus a trailing space) but with the '...' char will fit in the space.
you can make this fancier by adding padding around the border etc.
once the calculation is finished (and you of course cache all the bits of the answer), your view is prepared when it gets 'drawRect:...'. You position at (0, bounds.size.height - 21) and draw the first segment, then move down 21 points and draw the second line, etc.
If I were to code this I would plan on 2-4 hours - its not trivial, perhaps the logic is a bit complex, but its straightforward. Good luck!
Although the correct answer was not accepted in this old question - scroll to the last answer - it includes the code Truncate the last line of multi-line NSTextField
The solution includes the use of ellipses and line wrapping combined.

What does setTextMatrix of contentByte class in iText do?

I am using iText and am very new to it. There have been several situations where I think I could have figured out the problem with my code if I knew what I was doing - I use examples without knowing the workings behind the code, and even as I look at the source I can't figure out what the programmer was thinking.
What does setTextMatrix of contentByteArray in iText do? And how do I figure out the parameter values I need?
For example:
cb.setTextMatrix(1, 0);
The input parameters are x,y coordinates in points, unless CTM scaling was defined.
0,0 would be the bottom left of the template you are referencing.
The position is the 'baseline' of the text, rather than the top or the bottom.
Transcribed from this source:
https://sourceforge.net/p/itext/mailman/message/12855218/
first parameter sets left margin, second parameter sets bottom margin.

Displaying/Formatting Tabular Data (web)

In my example I have a table where each row is a user for example. Columns could include their name, address, email address, etc. I now need to add a column for (hypothetical example) their cat's names. While most people will have no cats and some people will have 1- 2 cats there will be the occasional person with 20 cats that create one very long row in the table. This is giving me an issue in presentation and for filtering/searching for cat names. Is there a good solution to displaying this type of data?
Have the first 50 (or whatever) characters of the field displayed as normal then put the rest in a block with its visibility set to hidden through CSS. Include a link / button / icon that will allow the user to toggle the visibility so they can see the entire value.
Several options:
Set a maximum width for the cell and allow the data to wrap
Place the content inside a wrapper tag (such as a div) and set the div with a fixed width/height and style of overflow:hidden to ensure that a particularly long word doesn't force out the width of the cell.
Truncate the output text on the server side
For cases #2 and #3, set the Title attribute of the TD tag to contain the full non-truncated text. This will present itself as a tooltip when hovering over the cell.
I would mention other CSS-based solutions but they're very sparsely supported right now, so not worth mentioning.
You might want to try doing something like what SO does. Namely, once someone reaches a certain point in their Rep, it suffixes the number and appromixates it. Ex. 10k instead of 10,236.
That way the numbers don't get out of hand.