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fgdata/Nasal/canvas/generic-canvas-map.xml
2012-11-03 22:06:51 +00:00

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3.9 KiB
XML

<?xml version="1.0"?>
<!--
generic-canvas.map XML:
- to be used by dialogs and instruments to add a generic map (navaids, fixes, airports etc)
- with each feature put on a separate layer (canvas group)
- each layer being controllable via a boolean property
NOTE: This is still work in progress, and will be significantly refactored in the time to come
Current requirements: (these are subject to change)
Dialogs wanting to use this, MUST:
- set DIALOG_CANVAS in open block
- provide a helper function dialog_property(p) to return a property appended to the dialog root in /sim/gui/dialogs/FOO/
- to set up layer-checkboxes automatically, use canvas.GenericMap.setupGUICheckboxes(DIALOG_CANVAS, gui_group)
For example, add this to your dialogs Nasal/open block in "foo.xml":
var dialog_name = "foo";
var dialog_property = func(p) return "/sim/gui/dialogs/foo/"~p;
var DIALOG_CANVAS = gui.findElementByName(cmdarg(), "airport-selection");
canvas.GenericMap.setupGUICheckboxes(DIALOG_CANVAS, "canvas-control");
TODO: use a single "InitCanvasMapSupport();" helper
In the close block, you'll want to call "map.cleanup_listeners()" at the moment
-->
<PropertyList>
<!--FIXME: move somewhere else, this is GUI specific and not useful for canvas maps shown as instruments! -->
<checkbox-toggle-template>
<name></name>
<label></label>
<property></property>
<binding>
<command>dialog-apply</command>
<object-name></object-name>
</binding>
</checkbox-toggle-template>
<!-- will be procedurally added to the dialog -->
<zoom-template>
<button>
<name>zoomout</name>
<legend>-</legend>
<pref-width>22</pref-width>
<pref-height>22</pref-height>
<binding>
<command>property-adjust</command>
<property></property>
<min>0</min>
<step>-1</step>
</binding>
</button>
<text>
<label>MMMM</label>
<halign>center</halign>
<format>Zoom %d</format>
<property></property>
<live>true</live>
</text>
<button>
<name>zoomin</name>
<legend>+</legend>
<pref-width>22</pref-width>
<pref-height>22</pref-height>
<binding>
<command>property-adjust</command>
<property></property>
<step>1</step>
<max></max> <!-- FIXME: compute dynamically via Nasal size() or just a property-->
</binding>
</button>
<empty><stretch>true</stretch></empty>
</zoom-template>
<nasal>
<load><![CDATA[
var my_canvas = canvas.get(cmdarg());
my_canvas.setColorBackground(0.2, 0.5, 0.2, 0.5); #TODO: support customization in XML
var root = my_canvas.createGroup();
# the top level AirportMap element uses a "GenericMap" now:
#TODO: features should be procedurally enabled via params (WIP)
#TODO: use generic Map and instantiate via XML
var map = canvas.GenericMap.new(parent:root, name:dialog_name) # FIXME: We shouldn't be using AirportMap here:
# we need a high level wrapper that can instantiate
# all sorts of maps, not just AirportMaps
.setTranslation(300, 200) # TODO: move to Map class ctor!
.setupZoom( dialog:DIALOG_CANVAS ) # TODO: make zooming configurable for non GUI use
.pickupFeatures (DIALOG_CANVAS); # set up the features specified in the XML file
canvas.run_callbacks(); # WORKAROUND to run dialog-specific init code -
# must be set up via register_callback() in the dialog's open block currently
]]>
</load>
</nasal>
</PropertyList>