Widget size

[dvg75]

Hello,

Im trying to make a widget appears when an event is applied to a static mesh.

My problem is i can’t get a fixed size of my widget, canvas panel has a desired/custom/desired or anything else, it does not matter, it will alway go off display.

Any idea why it happened?

thank you

[lordlolek]

Is it screen space or world space widget? Is it spawned directly on the screen or is it inside of some other widget?

[dvg75]

it’s a click event creating a widget

[Everynone]

Set Size in Viewport here. You can set the position, too.

[dvg75]

awesonme. thank you very much! next is to find a way to make the widget dragable.

[Everynone]

How to move a widget panel when I press the mouse button, and follow the mouse cursor

Here’s the thing - we can’t have the player controller do anything here; widgets and the controller do not like talking to each other and often don’t know what the other is doing with the input. Here are my wWindow’s Up / Down events for left mouse button: [309682-onmousedown.jpg] Above, the Grab Offset is where we clicked in that window - it’s later on used when we move it around. When grabbed, the window calls an event dispatcher that is picked up by main canvas where we drag the windows. …

[dvg75]

thanks!

you might have a path or a clue relative to my next problem.

pickin up a mesh from a widget
drop it in the scene
move rotate
delete
pick another etc…

[dvg75]

I’ve managed to get my widget clickable and moveable from point A to somewhere else.

THe widget stays in point A, is being duplicated under the mouse until point B and when mouse button is released just disappears.

And actually never left point A.

[Everynone]

@dvg75

And actually never left point A.

If you want to use Drag & Drop, you must also implement the Drop part. Note that the method I suggested in the linked thread does not use Drag & Drop at all; there we actually move the very widget rather than its visual copy.

@dvg75

you might have a path or a clue relative to my next problem.

pickin up a mesh from a widget
drop it in the scene

May ways, some simpler than others:

• simple:

Dragging 3D object 'out of' a UI button but position not updating when holding

so many different links of events… […]if there’s a way to approach this in a simpler fashion Let me clarify; what I originally suggested is suitable for a situation where you want both - dragging a widget and dragging an actor around simultaneously. Spawning and dragging after an interface click is easier as we don’t care about widget position: [image] [Image from Gyazo] The above should be in the Player Controller. Here the button was set to Mouse Down so it releases focus even though i…

• more advanced, where we simultaneously Drag & Drop a widget:

Getting Mouse Position During Drag and Drop UMG

Because it's undocumented, arcane knowledge obtainable only by those knowing a secret handshake. The below assumes you have overridden and using a Game Mode, a Player Controller and created a custom Drag & Drop Operation. in the Player Controller A Custom Event converts screen space to world space via deprojection and sets actor’s position: [image] in the Custom Drag & Drop Operation blueprint Event Dragged spits out screen space coordinates and feeds them to an Event Dispatcher, we…

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move rotate
delete
pick another etc…

Too many ways to implement this - depends on the details. The most common way would be to handle it in the Player Controller where input stores a reference to the selected object and messages the appropriate interface whose functions the interactive objects implement.