Qt Opengl

Mkss · wrote on 9 Sept 2019, 15:41

How i can develop flight instrument in qt with opengl. ```

mrjj · wrote on 9 Sept 2019, 16:24

Hi
The first step would be to learn openGL.
https://learnopengl.com/

Then I would think about if QML would be an option if for mobile.

Mkss · 10 Sept 2019, 04:15

Thanks, can we integrate tarrin database in qt with opengl. Also, is there any open source tarrin database is available?```

jsulm · M Mkss 10 Sept 2019, 03:32

@mkss What is "tarrin database"?

Mkss · wrote on 10 Sept 2019, 05:50

Geographical information system.

mrjj · wrote on 10 Sept 2019, 06:17

Then yes, its possible
but as far as i know, Qt do not have special support for it so you would have to program it yourself.

Mkss · wrote on 10 Sept 2019, 08:13

Thanks sir, i think this will resolve my problem.

Mkss · 17 Sept 2019, 11:55

Hello,
How to change image of pushbutton (clicked option not pressed option) i.e image change with clicked option.

mrjj · 17 Sept 2019, 13:14

@mkss
Hi
why can't you use the pressed state?
When left mouse is held down, it will show the image. when released, it
will revert to the first one.

There is no state for "clicked"
and since a click is mouse press event and a release event, i don't understand
why pressed, is not usable for you?

Mkss · 17 Sept 2019, 18:15

@mrjj
Hi
I want to make on/ off button. If i press on, button will remain in that state until i pressed again.

mrjj · 18 Sept 2019, 02:42

Then with stylesheet use the selectors
QPushButton {}
QPushButton:checked{}
to change images.

Mkss · M mrjj 17 Sept 2019, 18:15

@mrjj
Thanks its working now.

Mkss · 18 Sept 2019, 06:37

Can we make tristate swich using push button? On , off and intermediate state.

SGaist · wrote on 18 Sept 2019, 06:31

Hi,

AFAIR, no. What would be your use case ?

J.Hilk · M Mkss 18 Sept 2019, 05:18

@mkss QCheckBox has a build in try state functionality

if that helps