QT GUI Chooser: Difference between revisions

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(Created page with "This block creates a variable with enumerated options. The gui widget is implemented as a combo box or radio button group. Leave the label blank to use the variable id as the...")
 
(add example of using the "List" number of options)
 
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This block creates a variable with enumerated options. The gui widget is implemented as a combo box or radio button group. Leave the label blank to use the variable id as the label.
<!-- QT_GUI_Chooser.mediawiki -->
This block creates a variable with enumerated options. The gui widget is implemented as a combo box or radio button group. When the label is left blank, the option will be used as the label. If the number of options is greater than five, or you would rather enter a list, set the number of options to "list" to enter a list of options and a list of labels. See an example below. Note that the "Default option" must be one of the Option values.


Choose the number of options available to your chooser. When the label is left blank, the option will be used as the label. Set the number of options to "list" to enter a single list of options and labels. When the labels is an empty list, the options will be used as the label.
== Parameters ==
<b>(''R''):</b> <span class="plainlinks">[https://wiki.gnuradio.org/index.php/GNURadioCompanion#Variable_Controls ''Run-time adjustable'']</span>


See [[GUI Hint]] for how to position the GUI within your window.
See [[GUI Hint]] for how to position the GUI within your window.


Example Flowgraph:
== Example Parameters ==


[[File:Chooser-ex.png|700px]]
Here is an example of using the "List" option. A flowgraph using this option can be found at [https://raw.githubusercontent.com/duggabe/gr-control/main/Transmitters/NFM_xmt.grc]<br>


[[File:Chooser-ex2.png|400px]]
[[File:QT_GUI_Chooser_prop.png]]
 
== Example Flowgraph ==
 
This shows the QT GUI Chooser block and how it looks in the output.
 
[[File:FunCube_AM_out.png|800px]]
<br><br>
 
<b>Note:</b> <code>Added field for 3.8.1 in July 2020</code> The "Option 0 (Default)" field has been split into two fields: "Default option" and "Option 0". Whereas the old format forced the default value to be entered as Option 0, the new format allows any of the options to be the default value. Here are what the parameters of the Chooser look like before and after:
 
[[File:FunCube_AM_prop.png|387px]]&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;[[File:QT_GUI_CHOOSER_prop.png|303px]]
 
== Source Files ==
 
; C++ files
: [https://github.com/gnuradio/gnuradio TODO]
 
; Header files
: [https://github.com/gnuradio/gnuradio TODO]
 
; Public header files
: [https://github.com/gnuradio/gnuradio TODO]
 
; Block definition
: [https://raw.githubusercontent.com/gnuradio/gnuradio/main/gr-qtgui/grc/qtgui_chooser.block.yml]
 
[[Category:Block Docs]]

Latest revision as of 15:37, 18 May 2022

This block creates a variable with enumerated options. The gui widget is implemented as a combo box or radio button group. When the label is left blank, the option will be used as the label. If the number of options is greater than five, or you would rather enter a list, set the number of options to "list" to enter a list of options and a list of labels. See an example below. Note that the "Default option" must be one of the Option values.

Parameters

(R): Run-time adjustable

See GUI Hint for how to position the GUI within your window.

Example Parameters

Here is an example of using the "List" option. A flowgraph using this option can be found at [1]

QT GUI Chooser prop.png

Example Flowgraph

This shows the QT GUI Chooser block and how it looks in the output.

FunCube AM out.png

Note: Added field for 3.8.1 in July 2020 The "Option 0 (Default)" field has been split into two fields: "Default option" and "Option 0". Whereas the old format forced the default value to be entered as Option 0, the new format allows any of the options to be the default value. Here are what the parameters of the Chooser look like before and after:

FunCube AM prop.png      QT GUI CHOOSER prop.png

Source Files

C++ files
TODO
Header files
TODO
Public header files
TODO
Block definition
[2]