search

rivo / tview

Terminal UI library with rich, interactive widgets — written in Golang
MIT License
10.98k stars 571 forks source link

Example of using mouse events #667

Closed githubedu closed 2 years ago

githubedu commented 2 years ago

Hi,

I'm having issues to understand the usage of MouseActions.

In my case I want to call a function when "MouseLeftDown" is triggered or check that it has been triggered, when clicking in a button.

Could someone give me some basic advice where and how to use it?

Thank you

rivo commented 2 years ago

If you just want to be notified when a button was clicked, that's what Button.SetSelectedFunc() is for. This will be called also when the user activates the button with the keyboard.

If you specifically want to check for a left mouse click (which is quite uncommon, but I don't know your use case), you use button.SetMouseCapture(). Your function will be called for any mouse events directed at the button. You can then check if the action argument (type MouseAction) is MouseLeftDown and do whatever you need to do.

Let me know if this helps.

githubedu commented 2 years ago

Thank you Rivo, The SetMouseCapture is the one I was looking for.

I'm using to control motor axis. The user push a button on a touch screen, it activate on MouseLeftDown and keep active the motor until MouseLeftUp. Best regards.

markusressel commented 1 year ago

I want to leave a comment here mentioning that app.EnableMouse() is required for any callbacks set via SetMouseCapture() to be triggered.

Took me a while to figure out :wink:

mikayzo commented 8 months ago

I want to leave a comment here mentioning that app.EnableMouse() is required for any callbacks set via SetMouseCapture() to be triggered.

Took me a while to figure out 😉

jesus f** christ, took me half a day to find this f** comment and fix the f** mouse issues i had. bless you sir

rivo commented 7 months ago

I added some clarifications regarding the activation of mouse handling, see https://github.com/rivo/tview/commit/a22293bda94443b8e287d94957beab835e45187b.