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LocationQuery: compensate for the special representation of perspective info

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this assymetry in representation was introduced deliberately,
to test the design's ability to cope with such complications
This commit is contained in:
Fischlurch 2017-10-28 01:12:06 +02:00
parent c39442a287
commit 800407637a
3 changed files with 97 additions and 5 deletions
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29
src/gui/interact/gen-node-location-query.hpp
View file

@ -179,17 +179,42 @@ namespace interact {
return lib::transform (node.keys(), internedString);
}
static Rec const&
drillDown (Rec const& tree, UICoord const& path, size_t maxDepth, size_t& depth)
{
if (depth<maxDepth and path.isPresent(depth))
{
const char* pathElm = path[depth];
if (tree.hasAttribute(pathElm))
return drillDown (tree.get(pathElm).data.get<Rec>(), path, maxDepth, ++depth);
if (hasNode(tree, pathElm, depth))
{
++depth;
return drillDown (descendInto(tree,pathElm,depth), path, maxDepth, depth);
}
}
return tree;
}
/** does the guiding tree contain the element as requested by the UICoord path?
* @remark this function abstracts a special asymmetry of the tree representation:
* at `level==UIC_PERSP` (level 2), the perspective info is packed into the type
* meta attribute. This was done on purpose, to verify our design is able to
* handle such implementation intricacies, which we expect to encounter
* when navigating the widgets of a real-world UI toolkit set
*/
static bool
hasNode (Rec const& tree, const char* pathElm, size_t depth)
{
return depth==UIC_PERSP? pathElm == tree.getType()
: tree.hasAttribute(pathElm);
}
static Rec const&
descendInto (Rec const& tree, const char* pathElm, size_t depth)
{
return depth==UIC_PERSP? tree // perspective info is attached as type at the parent node
: tree.get(pathElm).data.get<Rec>();
}
};

2
src/gui/interact/ui-coord-resolver.hpp
View file

@ -105,7 +105,7 @@ namespace interact {
/** evaluate to what extent a UIcoord spec matches the actual UI
* @return the depth to which the given spec is _"covered"_ by the actual UI
* @return the depth to which the given spec is _"covered"_ by the actual UI.
* Can be zero, in which case the given coordinates can not be resolved
* and addressed within the currently existing windows, panes and views.
* @note this operation does not perform any _resolution_ or interpolation of wildcards,

71
wiki/thinkPad.ichthyo.mm
View file

@ -4577,7 +4577,7 @@
</node>
<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1506984645747" ID="ID_517262443" MODIFIED="1508625810426" TEXT="verify_backingQuery">
<icon BUILTIN="pencil"/>
<node CREATED="1508809610790" ID="ID_1860790851" MODIFIED="1509142631190" TEXT="Builder-Syntax war falsch">
<node CREATED="1508809610790" FOLDED="true" ID="ID_1860790851" MODIFIED="1509145537374" TEXT="Builder-Syntax war falsch">
<icon BUILTIN="button_ok"/>
<node CREATED="1508809620762" ID="ID_236111511" MODIFIED="1508809630860" TEXT="mu&#xdf; die Attribute-Collection nutzen"/>
<node CREATED="1508809631448" ID="ID_956153388" MODIFIED="1508809644482" TEXT="Builder wohl noch nie f&#xfc;r diesen Fall verwendet"/>
@ -4617,7 +4617,74 @@
<icon BUILTIN="ksmiletris"/>
</node>
</node>
<node CREATED="1509142651113" ID="ID_99734013" MODIFIED="1509142657805" TEXT="Spezialbehandlung Perspektive"/>
<node CREATED="1509142651113" ID="ID_99734013" MODIFIED="1509145529638">
<richcontent TYPE="NODE"><html>
<head>
</head>
<body>
<p>
Spezialbehandlung
</p>
<p>
Perspektive
</p>
</body>
</html>
</richcontent>
<icon BUILTIN="button_ok"/>
<node CREATED="1509143055036" ID="ID_810015478" MODIFIED="1509143099748" TEXT="absichtlich unorthogonal repr&#xe4;sentiert">
<richcontent TYPE="NOTE"><html>
<head>
</head>
<body>
<p>
...um zu pr&#252;fen, ob das allgemeine Design
</p>
<p>
mit solchen Asymetrien umgehen kann,
</p>
<p>
welche ziemlich sicher noch viel mehr
</p>
<p>
bei der Navigation in einem realen GUI auftreten
</p>
</body>
</html>
</richcontent>
</node>
<node CREATED="1509143404342" ID="ID_708195081" MODIFIED="1509143411493" TEXT="drillDown aufbohren">
<icon BUILTIN="ksmiletris"/>
<node CREATED="1509143431491" ID="ID_1535839304" MODIFIED="1509143436685" TEXT="Pfad normal weiterverarbeiten"/>
<node CREATED="1509143437202" ID="ID_1489524396" MODIFIED="1509143442917" TEXT="aber Abstieg im Baum manipulieren"/>
</node>
<node CREATED="1509143453151" ID="ID_373632759" MODIFIED="1509143457604" TEXT="speziell...">
<node CREATED="1509143459519" ID="ID_1727095948" MODIFIED="1509143468809" TEXT="existenz-Check l&#xe4;uft anders">
<node CREATED="1509143492194" ID="ID_835507213" MODIFIED="1509143513852" TEXT="getType und stringvergleich"/>
<node CREATED="1509143514352" ID="ID_730111393" MODIFIED="1509143519963" TEXT="statt hasAttribute"/>
</node>
<node CREATED="1509143469429" ID="ID_1414723485" MODIFIED="1509143481984" TEXT="keinen Abstiegs-Schritt machen"/>
</node>
<node CREATED="1509143542611" ID="ID_114168871" MODIFIED="1509143583963" TEXT="Schwein gehabt, rekursiv programmiert">
<richcontent TYPE="NOTE"><html>
<head>
</head>
<body>
<p>
...und ich hab mir letzte Woche noch solche Vorw&#252;rfe gemacht,
</p>
<p>
da&#223; ich mich wieder mal &quot;akademisch&quot; verspielt habe.... :-P
</p>
</body>
</html>
</richcontent>
<icon BUILTIN="ksmiletris"/>
</node>
</node>
</node>
<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1506984645748" ID="ID_1254044275" MODIFIED="1506984664457" TEXT="verify_queryAnchor">
<icon BUILTIN="flag-yellow"/>