# haxe-ui
- u
user
10/22/2020, 3:18 PMtrying to find it myself - b
bright-gpu-74537
10/22/2020, 3:20 PMit doesnt, you'd have to implement that yourself - however, its something im going to need pretty soon, so will likely add it - b
bright-gpu-74537
10/22/2020, 3:20 PMits one of those things that i end up implementing over and over again in all projects - u
user
10/22/2020, 3:31 PMDo you have any examples I can take a look at @User ? - a
able-action-74275
10/22/2020, 3:31 PMand then... dockable windows 😂 - u
user
10/22/2020, 3:31 PMmy classes have all sorts of positioning problems.. - u
user
10/22/2020, 3:31 PMyes snappable and dockable ones would be awesome 😂 - a
able-action-74275
10/22/2020, 3:32 PM@User what sort of positioning problems? - a
able-action-74275
10/22/2020, 3:32 PMthere's been a couple of instances of wonky positions with the flixel backend lately due to DPI scaling I believe - u
user
10/22/2020, 3:33 PMI've somewhat hammered out how to position things relative to the window. But a weird problem crept up on me when I was restructuring and trying to make things easier - u
user
10/22/2020, 3:33 PMOne sec.. - u
user
10/22/2020, 3:39 PMAh yes. - u
user
10/22/2020, 3:39 PMHere it is. - u
user
10/22/2020, 3:39 PMUncaught TypeError: Cannot read property 'set_x' of null - u
user
10/22/2020, 3:40 PMThat's what happens when I add a specific class to the main group. The class is a derivative ofFlxTypedSpriteGroup<WindowGroup> - u
user
10/22/2020, 3:40 PMI don't even know what I changed to make it do this. But needless to say: windows are hard 😦 - b
bright-gpu-74537
10/22/2020, 3:41 PMany chance you could knock up a minimal example? Also, i might have a crack at a drag / drop system, the reason ive avoided it before its because its hard to come up with a "one size fits all" type system... what features would you want out of a drag / drop system? - u
user
10/22/2020, 3:43 PMFrankly just dragging works. Something that will always float on top of the whole screen. Boundaries, too: so things can't be dragged off the page. - u
user
10/22/2020, 3:43 PMA region that would indicate where you can start to drag something from (like the part of the sprite) - b
bright-gpu-74537
10/22/2020, 3:44 PMok, ill have a think - maybe ill get some time this weekend - b
bright-gpu-74537
10/22/2020, 3:44 PMas for just dragging a haxeui component around the screen, it should be super simple - b
bright-gpu-74537
10/22/2020, 3:45 PMadd a listener on mouse down, save the coords local to the component (ie, where the mouse was pressed), add a global mouse move listener, when the mouse moves, move the component and add the downoffset from mouse down - b
bright-gpu-74537
10/22/2020, 3:46 PM(and on mouse up, remove the move listener) - b
bright-gpu-74537
10/22/2020, 3:46 PMi can knock something up real quick if that doesnt make sense - u
user
10/22/2020, 3:46 PMwell FlxExtendedSprite works pretty well for the basic drags-- my project is not even using HaxeUI yet - u
user
10/22/2020, 3:46 PMbut i'm exploring it as an option for a better framework than my own Sprite-based system.. - b
bright-gpu-74537
10/22/2020, 3:46 PMah, right - b
bright-gpu-74537
10/22/2020, 3:47 PMsame system i guess would apply for your non haxeui ui... - u
user
10/22/2020, 3:49 PMmy biggest problem is that I can't add child objects onto each other. In Flash, you can just add Sprites onto Sprites. - u
user
10/22/2020, 3:50 PMBut I've had to come up with this hybrid FlxGroup with a default FlxExtendedSprite that's created innew()