diff --git a/research/try.cpp b/research/try.cpp index 0f26bf401..9cd84e612 100644 --- a/research/try.cpp +++ b/research/try.cpp @@ -45,13 +45,11 @@ // 06/19 - use a statefull counting filter in a treeExplorer pipeline // 03/20 - investigate type deduction bug with PtrDerefIter // 01/21 - look for ways to detect the presence of an (possibly inherited) getID() function +// 08/22 - techniques to supply additional feature selectors to a constructor call /** @file try.cpp - * Verify a way to detect the presence of a specific implementation function, - * even when it is just inherited and thus not part of the concrete class definition. - * The trick is to _emulate the use_ of the object method in question within a `decltype( )` - * statement, which in turn is used to build the concrete template signature. + * Investigate techniques to supply additional descriptive ctor arguments in a type safe way. */ typedef unsigned int uint; @@ -60,90 +58,86 @@ typedef unsigned int uint; #include "lib/format-cout.hpp" #include "lib/test/test-helper.hpp" #include "lib/util.hpp" -#include "lib/idi/entry-id.hpp" -#include "lib/meta/duck-detector.hpp" -#include +//#include +#include #include using std::string; -using lib::idi::EntryID; -using lib::idi::BareEntryID; -using lib::meta::Yes_t; -using lib::meta::No_t; - - #define SHOW_TYPE(_TY_) \ cout << "typeof( " << STRINGIFY(_TY_) << " )= " << lib::meta::typeStr<_TY_>() <; + + struct Qualifier + : Manipulator { - return idi; + using Manipulator::Manipulator; + }; + + friend Qualifier bla(); + friend Qualifier blubb(string); + + public: + operator string () const + { + return "Feat{"+prop_+"}"; } + + Feat() = default; + + template + Feat(Qualifier qual, QS... qs) + : Feat{qual(Feat{qs...})} + { } }; -class Derived - : public Base - { }; +Feat::Qualifier +bla() +{ + return Feat::Qualifier{[](Feat feat) + { + feat.prop_ = "bla"; + return feat; + }}; +} -class Derailed - { }; +Feat::Qualifier +blubb(string murks) +{ + return Feat::Qualifier{[=](Feat feat) + { + feat.prop_ += ".blubb("+murks+")"; + return feat; + }}; +} int main (int, char**) { - Base b1; - Derived d1; - Derailed r1; - SHOW_EXPR( b1 ); - SHOW_EXPR( b1.getID() ); - SHOW_EXPR( HasFunSig_getID::value ); - SHOW_EXPR( HasArglessFun_getID::value ); - SHOW_EXPR( Can_retrieve_and_compare_ID::value ); + Feat f0; + SHOW_EXPR(f0); - SHOW_EXPR( d1 ); - SHOW_EXPR( d1.getID() ); - SHOW_EXPR( HasFunSig_getID::value ); - SHOW_EXPR( HasArglessFun_getID::value ); - SHOW_EXPR( Can_retrieve_and_compare_ID::value ); + Feat f1(bla()); + SHOW_EXPR(f1); - SHOW_EXPR( r1 ); - SHOW_EXPR( HasFunSig_getID::value ); - SHOW_EXPR( HasArglessFun_getID::value ); - SHOW_EXPR( Can_retrieve_and_compare_ID::value ); + Feat f2(blubb("Ψ")); + SHOW_EXPR(f2); -// SHOW_TYPE( decltype( d1.getID() )) + Feat f3(bla(),blubb("↯")); // Note: evaluated from right to left, bla() overwrites prop + SHOW_EXPR(f3); + + Feat f4(blubb("💡"), bla()); + SHOW_EXPR(f4); cout << "\n.gulp.\n"; return 0; diff --git a/src/stage/model/canvas-hook.hpp b/src/stage/model/canvas-hook.hpp index 57d6c9350..2b7abf909 100644 --- a/src/stage/model/canvas-hook.hpp +++ b/src/stage/model/canvas-hook.hpp @@ -59,7 +59,7 @@ #include -namespace stage { +namespace stage { namespace model { using lib::time::Time; diff --git a/src/stage/timeline/clip-widget.hpp b/src/stage/timeline/clip-widget.hpp index aea2ced99..c43a278f9 100644 --- a/src/stage/timeline/clip-widget.hpp +++ b/src/stage/timeline/clip-widget.hpp @@ -95,13 +95,13 @@ ** ** ## Structure of the clip representation ** Obviously, managing all these wildly different appearance styles incurs a lot of complexity, - ** which needs to be decomposed to become manageable. Thus, we introduce several responsibilities + ** which needs to be decomposed to keep it manageable. Thus, we introduce several responsibilities ** - the ClipPresenter is what formally corresponds to the session::Clip, i.e. in a birds ** eyes view, it "is" the clip. However, in fact the ClipPresenter only manages the ** desired properties and delegates the actual realisation to "some widget" ** - and this "widget" is in fact a "PImpl", the ClipDelegate, which foremost exposes an interface - ** to adapt and control the appearance style, while the actual clip widget is only accessible - ** through the ClipDelegate interface + ** to adapt and control the appearance style, while the actual clip widget remains a private detail + ** and is only accessible through the ClipDelegate interface ** - behind the scenes, [within the implementation](\ref clip-widget.cpp), several implementation ** subclasses are available, to be installed and exchanged to accommodate the desired appearance ** style. These are managed semi-automatically and hooked into the appropriate display framework diff --git a/wiki/thinkPad.ichthyo.mm b/wiki/thinkPad.ichthyo.mm index 3a51988ed..5f1c9ebfb 100644 --- a/wiki/thinkPad.ichthyo.mm +++ b/wiki/thinkPad.ichthyo.mm @@ -17880,7 +17880,11 @@ - + + + + + @@ -17926,10 +17930,11 @@ d.h. das Text-Label bekommt ggfs. eine Längenbeschränkung.

- Und sonst wird er Körper/Hintergrund ausgedehnt + Und sonst wird der Körper/Hintergrund ausgedehnt

+ @@ -18111,7 +18116,7 @@ - + @@ -18208,6 +18213,23 @@ + + + + + + + + + + + + + + + + + @@ -18215,7 +18237,8 @@ - + + @@ -18239,7 +18262,8 @@ - + + @@ -18351,6 +18375,15 @@ + + + + + + + + + @@ -18372,6 +18405,16 @@ + + + + + + + + + + @@ -29897,6 +29940,7 @@ + @@ -30172,6 +30216,10 @@ + + + + @@ -30472,6 +30520,7 @@ + @@ -30488,7 +30537,7 @@ - + @@ -30497,6 +30546,7 @@ + @@ -59395,6 +59445,16 @@ + + + + + + + + + +