TextView cutting off large amount of text? - xcode

I'm currently placing my textview onto my storyboard but when I place some text inside the field it cuts off a portion of the text. It looks like this.
Now i've made sure there is plenty of space in my storyboard for the text so it seems really silly for this to be happening.
Why is this happening and what can I do about it? I thought about just adding another textview to solve the issue but it seems rather silly to add another object just to display another portion of uneditable text.

Related

Unity ScrollRect scrolls the text field, but not text

I'm struggling to create a simple scrollable text box in Unity. I've followed this tutorial and others, but instead of the text scrolling like it should, it moves the entire text object up and down.
In the hierarchy, it is simply a panel with a text child.
Here's what the Panel looks like
And here's the textlog
Can someone help me figure out what exactly is going wrong?

Adding controls to NSTextView and binding them to (ranges of) characters

When editing code, Xcode is capabale of displaying in-text controls, like drop down buttons which can show context menu's. I've seen other OS X apps that handle text capable of similar features. See the attached sample.
I presume this effect is obtained using NSTextAttachmentCell - although I'm not sure whether this is the proper way to implement this.
For my own app I would like to use this technique as well.
I have the following questions:
Is NSTextAttachmentCell the correct way to implement such a feature? If not, what would be?
How do I attach a control -comparable to the one in the above sample- to a specific range of text so that its location within NSTextView is dynamic and follows layout actions?
I found this which gives some hints but does not cover the attachment to specific text ranges.
Although NSTextAttachmentCell will work, it has a disadvantage: the cell will become just a glyph in the text which was not what I wanted. It distorts the layout of the text, is selectable etc. I wanted the cell to be drawn over the text, just like the behaviour in Xcode.
The challenge was to find a way of translating a point from a Mouse Moved event to the position of a particular string of characters inside the NSTextView.
After some more digging I found a little gem in Apple's demo apps called LayoutManagerDemo. This demo shows a custom subclass of NSTextView capable of highlighting individual characters, words and lines while the mouse is hoovering its view. From there on it was pretty easy to fade in a button at the required NSPoint and then show a popup menu with some options.

CAAnimation on a UIButton

I have been trying to create a simple swipe transition. However buttons seem immune to any CAAnimation that crops.
I am trying to get it so that a bar moves across the screen and as it goes over the button it removes the part it has just gone over.
I have tried bounds.width, size.x and many other key-value paths to achieve the affect but I haven't got what I wanted. It just relocates the text which always remains entirely visible
I have also tried changing the UIButton to a UIImage but the text does not seem to print on a UIImage.
I tried using masks too but I have heard they should be used as infrequently as possible as they consume the phones resources. I didn't really get very far with this either anyway as I hadn't used them much before.
I also tried placing it in a container view and then change the dimensions of that but again all of the text remained entirely visible.
I know I could have a view hide the button but I am trying to reveal the view behind as the bar swipes.
Does anyone have any suggestions of how to achieve a swipe transition on a UIButton?
Help would be much appreciated.
Thanks
I think what you're looking for really is a mask. See the tutorial here:
http://iosdevelopertips.com/cocoa/how-to-mask-an-image.html
What I'd do in your situation is create a custom UIButton class, and add a mask as in the tutorial, then animate the position of the mask. Slide the mask of, nothing shows. Slide it on, part shows until the whole thing is visible.
Edit: I haven't really heard anything about hogging resources, especially since it appears to be simple core graphics.

How can I get an NSTextField to behave like a HTML text?

I have some static text that is usually only 1 line long that displays in a NSTextField in my xib. In some instances, the text is long enough to warrant 2 lines, and I just want the label to resize vertically to fit it, without giving me scrollers or any thing else. Think of how text on a webpage behaves… that is what I want. I just want the label to grow shrink with different text, and with adjustments to its width. How can I achieve this?
UPDATE
Here is a video of how it currently behaves: http://screencast.com/t/4JYTv7jVG3O
Notice how when the NSTextField is two lines long, there is a big gap underneath the text. This is because the stars and button are aligned at the bottom of the frame, and because I have to have the frame taller to accommodate 2 lines, they stay there. If I can get an answer to this question, I would make the frame shorter for the 1 line text, and make the bottom textfield (with the smaller text) taller to compensate. Can this type of floating layout be done?
One option is to actually use a WebView to display your content. You will then get exactly the behaviour you are expecting, at the cost of a bit of work to manage interaction with the controls.
You would need to set the WebView to display no background, using [webView setDrawsBackground:NO].
You'd also need to construct the content (including the star rating and the button) using HTML/CSS and then use the Objective-C/JavaScript bridge to call back to your app when the button is pressed.
More information on calling Objective-C from JavaScript is here.
You could probably also use an NSTextView and embed the button and star rating as NSTextAttachment objects but this is quite complex, it would be a lot easier to use a WebView.
The only other alternative that I can see is writing a view controller that manages the layout of the controls based on the current size of their container view. You would need to measure the text to do this and one way to do that is to use the excellent NS(Attributed)String+Geometrics category written by Jerry Krinock.

Padding around an NSTextView in an NSScrollView

I'd like to provide a few pixels of padding around an NSTextView inside of an NSScrollView. I've reviewed this post and using setTextContainerInset does the trick for the left, right, and bottom margins. But as soon as the text scrolls the top buffer is lost. Same thing with overriding textContainerOrigin. Another answer in that post states:
The way TextEdit does it (when in Wrap to Page mode) is to put the text view inside of a larger view, and set that larger view as the document view of the scroll view.
But if I do that (using, say an NSBox) the content no longer scrolls. Am I missing something regarding that particular trick, or are there any other techniques that folks could suggest?
There's a step that seems to be missing from your quote. You'll need to make sure your new document view tracks the changes in the text view's frame and sizes itself to fit. You can turn on NSViewFrameDidChangeNotification on your text view with -setPostsFrameChangedNotifications:, then have your new document view listen for notifications from your text view..
By the way, I ended up accomplishing this by subclassing NSClipView, overriding setFrame:, setFrameOrigin:, and setFrameSize, and hacking the origin and width in those methods to add my padding.

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