I'm facing a pretty strange problem and I need some help from your brains :)
1) I'm using Qt 4.6.0
2) I want to enable drag&drop (Qt::MoveAction with QAbstractItemView::InternalMove only) on items in a treeview.
3) I have my own model and a proxy model used to perform some sorting...
4) Drag&Drop works well except for one single thing, here it is :
When I perform some "real quick" drag&drops in the tree (basically throwing items from a parent to another) or when I'm trying to throw an item out of the three (above the first parent, between the top parent and the treeview's viewport's limit), the moving item disappears...
Even worse, sometimes, a corrupted item is created above my first folder (See the following pictures).
Image Before
Image After
Let's try and summarize a bit :
When I perform quick and random moves with the items in the tree(changing their parents or re-placing the items in their current parent), sometimes I have items that go everywhere but where they should... I also remind you guys that when used "normally" my drag&drop works...
I hope I've been clear enough, don't hesitate to ask for further details !
Thanks in advance for your help !!
I've been having the same problem, and it seems to be because you can drop an item onto another item, and then replace that item. I haven't figured out how to solve this problem though.
Related
I am having an issue all of a sudden when parenting a few objects just added in that they parent but appear to be a duplicate in the hierarchy under the parent and are grayed out. This is using Blender 3.0
As you can see these last 2 I parented are grayed under parent and still remain below in the collection when they were created. I have been parenting other objects (drag n drop as well as Ctrl P keeping transforms too) just fine until today and have no idea why I am getting these results?
Can someone help me understand why I am now getting these results and how to correct this issue?
TIA!
Rick...
Please see my previous comment resolving my issue at least and maybe this will help others should it happen to them.
Thanks.
Rick...
great people from Stack!
I'm having some issues working with Full Calendar I would like to get some help with.
First of all, Full Calendar is an amazing tool. Everything I have had any doubt with has been solved in a breeze just by taking a look at the docs or googling five minutes. However, there is a problem I'm dealing with and can't find (I'm starting to suspect it is virtually impossible, or at least it is for me to imagine how to do it) the way to get it solved.
I'm implementing this library in a project which is meant to be something like an appointments manager, among other things. A (simple) functionality I wanted to add is to open a modal when a calendar cell (agenda week would be the main view) is clicked with a form, allowing to create an appointment for the selected cell. To improve usability, I thought it would be nice if the cells had some kind of hover effect, so that you can feel there is 'something' behind clicking this element. The thing is, the calendar is composed by something like 2 separated overlapping tables, one with rows and the other with columns, that form the grid. The modal system is done and working, dayClick made the trick. Any way to do anything similar to what I am talking about, the hover stuff? (my idea was to make some kind of (+) button appear when hovering, but anything would work.
Thank you!
Seth
Edit: I noticed there is a 'selectable' directive which, given only to the AgendaWeek view, allows me to select cells. The selection is made by the JS code, adding an element just above the cell, with its dimensions. Wouldn't it be any way to call this from hovering a cell instead of just clicking it? I wonder that highlight cell is rendered from the position of the mouse at the time of the click and wouldn't be very efficient to check that all the time...
This one is stupid, and there's probably a ridiculously simple answer I'm just not aware of:
I'm trying to edit the plist for my Settings.bundle to implement preferences in my app. I want to tweak the order of a few groups, but I can't figure out how to move rows around. In XCode 3 you could just drag rows around to rearrange them, but it seems this no longer works in XCode 4. Short of deleting everything and re-recreating them in the correct order, how can I re-arrange the rows?
Thanks.
You can move an entry by grabbing the right side and moving it up, you just can't move it down.
I think it's an annoying gotcha that quite a few have run in to.
Check out:
How do you change a plist's root object type to NSArray in Xcode 4
and:
Change the editor Xcode 4 uses for property lists?
Basically, you can't. Changing the plist editor to textedit was the best solution for me. Also you can right click on the plist file and select "Open As > Source Code" to edit the plist raw.
It looks like the same problem is back in XCode 5. By grabbing it on the right you can drag it around, but you can't drop it anywhere. The only way I found was to open the list as source code like #Ralphleon said, which is simple enough to do if you have basic XML skills.
Update: With the new XCode that comes with Lion and iOS 5, moving rows works again.
Yes the order matters if you care about the order the preferences appear in your app settings.
I just create a new item (+) in the settings list where I would like an existing item placed. Then copy (right mouse click) that existing item and paste it on top of the new item. And then delete any duplicates.
In XCode 5.1, you can drag rows and drop them to a parent item. You can't rearrange siblings directly, but by dropping them on the parent item, the child jumps to the top among the siblings.
Check out the app PlistEdit Pro. It handles everything properly. Not free. But if you're doing lots of plist work it's essential.
Here
I have a basic Tree built in Flex. The Tree works fine. I'm attempting to get a list of all of the visible nodes. I know there is a Tree.openItems, but that does not suffice because (for example) if you open all the items in your tree and then close the root, the invisible opened items are still counted.
I simply want a list of all the visible items. Any help would be greatly appreciated!
Loop though the data items and call Tree.isItemVisible(item) for each.
How do I switch between the two screens on the Qt?
For example, I have a button - static text plus a toolbar. Now I will add it to a frame and set it as a central widget. It works well for one window. What if I move it to the next window? Then I need to show some other stuff like another button, some images etc... and what if I come back to the first view again?
How do I show my old widgets back?
I'm not sure I got your problem right but, you could have different scenarios :
You could simply use groupboxes... Some widgets in groupbox1, otherWidget in groupbox2, and you display the groupbox you want to use, hiding the others...
You could use stackedWidget, which simulates "pages" of widgets stacked on top of eachothers... more informations here : http://qt.nokia.com/doc/4.6/qstackedwidget.html.
You could use other way like using tabs : http://doc.trolltech.com/4.6/qtabwidget.html
Maybe this example would be useful to you : http://qt.nokia.com/doc/4.6/dialogs-configdialog.html
Hope it helps a bit !
I'd recommend checking out Animation/States example (should be in /qt/examples/animation/states/ subdirectory of your Qt installation). It shows how to combine state machine representing application logic with presentation layer and get cool animation effects for free (of course if you don't need eye candy, you can set widgets properties without any animation).