Howto:Implementing a simple GCA system: Difference between revisions

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Howto:Implementing a simple GCA system (view source)

Revision as of 08:34, 20 August 2017

379 bytes added ,  20 August 2017
→‎GUI frontend
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Once the underlying script is working well enough, we can look into providing a configuration GUI on top of the script using the Canvas GUI library:  
Once the underlying script is working well enough, we can look into providing a configuration GUI on top of the script using the Canvas GUI library:  
<syntaxhighlight lang="nasal">
<syntaxhighlight lang="nasal">
var (width,height) = (320,350);
var (width,height) = (320,400);
var title = 'GCA Dialog ';
var title = 'GCA Dialog ';


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var setupWidgetTooltip = func(widget, tooltip) {
var setupWidgetTooltip = func(widget, tooltip) {
widget._view._root.addEventListener("mouseover", func gui.popupTip(tooltip) );
widget._view._root.addEventListener("mouseover", func gui.popupTip(tooltip) );
} # setupWidgetTooltip


}


 
var setupLabeledInput = func(root, layout, input) {
var setupLabeledInput = func(root, layout, text, default_value, focus, tooltip) {
#text, default_value, focus, tooltip, unit) {


var label = canvas.gui.widgets.Label.new(root, canvas.style, {wordWrap: 0});  
var label = canvas.gui.widgets.Label.new(root, canvas.style, {wordWrap: 0});  
label.setText(text);
var unit_suffix = sprintf(" (%s):", input.unit);
label.setText(input.text~unit_suffix);
layout.addItem(label);
layout.addItem(label);


var input = canvas.gui.widgets.LineEdit.new(root, canvas.style, {});
var field = canvas.gui.widgets.LineEdit.new(root, canvas.style, {});
layout.addItem(input);
layout.addItem(field);
input.setText(default_value);
field.setText(input.default_value);


## TODO: add widget to hash
## TODO: add widget to hash


if (focus)
if (input.focus)
input.setFocus();
field.setFocus();


# input._view._root.addEventListener("mouseover", func gui.popupTip(tooltip) );
setupWidgetTooltip(widget:field, tooltip: input.tooltip);
setupWidgetTooltip(widget:input, tooltip: tooltip);
return field; # return to caller
} # setupLabeledInput()
} # setupLabeledInput()


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},  
},  


'TransmissionInterval': func(input) {
return 0;
},


}; # validationHelpers;
}; # validationHelpers;
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var inputs = [
var inputs = [
{text: 'Aircraft root property:', default_value:'/position', focus:1, callback:nil, tooltip:'property path', validate: 'AircraftRoot', convert:nil},
{text: 'Aircraft root', default_value:'/position', focus:1, callback:nil, tooltip:'property path', validate: 'AircraftRoot', convert:nil, unit: 'property path'},
{text: 'Airport:', default_value:'KSFO', focus:0, callback:nil, tooltip:'ICAO ID, e.g. KSFO', validate: 'Airport', convert:nil},
{text: 'Airport', default_value:'KSFO', focus:0, callback:nil, tooltip:'ICAO ID, e.g. KSFO', validate: 'Airport', convert:nil, unit:'ICAO'},
{text: 'Runway:', default_value:'28R', focus:0, callback:nil, tooltip:'runway identifier, e.g. 28L', validate: 'Runway', convert:nil},
{text: 'Runway', default_value:'28R', focus:0, callback:nil, tooltip:'runway identifier, e.g. 28L', validate: 'Runway', convert:nil, unit:'RWY'},
{text: 'Final Approach (nm):', default_value:'10.00', focus:0, callback:nil, tooltip:'length of final approach leg', validate: 'FinalApproach', convert:nil},
{text: 'Final Approach', default_value:'10.00', focus:0, callback:nil, tooltip:'length of final approach leg', validate: 'FinalApproach', convert:nil, unit:'nm'},
 
{text: 'Glidepath:', default_value:'3.00', focus:0, callback:nil, tooltip:'glidepath in degrees, e.g. 3', validate: 'Glidepath', convert:nil},
{text: 'Safety Slope:', default_value:'2.00', focus:0, callback:nil, tooltip:'safety slope in degrees', validate: 'SafetySlope', convert:nil},


{text: 'Decision Height (ft):', default_value:'200.00', focus:0, callback:nil, tooltip:'decision height (vertical offset)', validate: 'DecisionHeight', convert:nil},
{text: 'Glidepath', default_value:'3.00', focus:0, callback:nil, tooltip:'glidepath in degrees, e.g. 3', validate: 'Glidepath', convert:nil, unit:'degrees'},
{text: 'Touchdown Offset (m):', default_value:'0.00', focus:0, callback:nil, tooltip:'touchdown offset', validate: 'TouchdownOffset', convert:nil},
{text: 'Safety Slope', default_value:'2.00', focus:0, callback:nil, tooltip:'safety slope in degrees', validate: 'SafetySlope', convert:nil, unit:'degrees'},


{text: 'Decision Height', default_value:'200.00', focus:0, callback:nil, tooltip:'decision height (vertical offset)', validate: 'DecisionHeight', convert:nil, unit:'ft'},
{text: 'Touchdown Offset', default_value:'0.00', focus:0, callback:nil, tooltip:'touchdown offset', validate: 'TouchdownOffset', convert:nil, unit:'m'},
{text: 'Transmission interval', default_value:'5.00', focus:0, callback:nil, tooltip:'Controller/timer resolution', validate: 'TransmissionInterval', convert:nil, unit:'secs'},
]; # input fields
]; # input fields


foreach(var input; inputs) {
foreach(var input; inputs) {
  # TODO: pass input hash  
  # TODO: pass input hash  
  setupLabeledInput(root, myLayout, input.text, input.default_value, input.focus, input.tooltip);
  var widget = setupLabeledInput(root, myLayout, input);
}
}


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  } # error handling
  } # error handling
} # foreach
} # foreach
return 0; # all validations passed
} # validateFields()
} # validateFields()


Retrieved from "https://wiki.flightgear.org/Special:MobileDiff/109823"

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