Mercurial > projects > qtd
annotate qt/qtd/MetaMarshall.d @ 323:7a3c43424dca signals
make all examples compile with new signals/slots
| author | eldar_ins@eldar-laptop |
|---|---|
| date | Mon, 28 Dec 2009 16:28:55 +0500 |
| parents | 894d40eb89b6 |
| children | 4e31cbd9e20c |
| rev | line source |
|---|---|
| 288 | 1 module qt.qtd.MetaMarshall; |
| 2 | |
| 3 import std.traits; | |
| 4 | |
|
319
894d40eb89b6
new signals and slots syntax. have to use prefixes now: signal_fooed and slot_onFooed
eldar_ins@eldar-laptop
parents:
318
diff
changeset
|
5 import qt.qtd.Meta; |
| 309 | 6 |
| 288 | 7 template isQObjectType(T) // is a QObject type that belongs to the library |
| 8 { | |
| 292 | 9 enum isQObjectType = is(T.__isQObjectType); |
| 288 | 10 } |
| 11 | |
| 293 | 12 template isObjectType(T) // is a Qt Object type that belongs to the library |
| 288 | 13 { |
| 292 | 14 enum isObjectType = is(T.__isObjectType); |
| 288 | 15 } |
| 16 | |
| 293 | 17 template isValueType(T) // is a Qt Value type that belongs to the library |
| 288 | 18 { |
| 293 | 19 enum isValueType = is(T.__isValueType); |
| 288 | 20 } |
| 21 | |
| 22 template isNativeType(T) // type that doesn't require conversion i.e. is the same in C++ and D | |
| 23 { | |
| 302 | 24 enum isNativeType = isNumeric!T || is(T == bool) || is(T == struct); |
| 25 } | |
| 26 | |
| 27 template isStringType(T) // string type | |
| 28 { | |
| 29 enum isStringType = is(T == string); | |
| 288 | 30 } |
| 31 | |
| 309 | 32 template isQList(T) |
| 33 { | |
|
319
894d40eb89b6
new signals and slots syntax. have to use prefixes now: signal_fooed and slot_onFooed
eldar_ins@eldar-laptop
parents:
318
diff
changeset
|
34 enum isQList = ctfeStartsWith(Unqual!(T).stringof, "QList!"); |
| 309 | 35 } |
| 36 | |
| 288 | 37 // converts an argumnent from C++ to D in qt_metacall |
| 38 string metaCallArgument(T)(string ptr) | |
| 39 { | |
| 303 | 40 static if (isQObjectType!T || isObjectType!T) |
| 288 | 41 return T.stringof ~ ".__getObject(*cast(void**)(" ~ ptr ~ "))"; |
| 318 | 42 else static if (isValueType!T) |
| 43 return "new " ~ T.stringof ~ "(" ~ T.stringof ~ ".__constructNativeCopy(" ~ ptr ~ "))"; | |
| 288 | 44 else static if (isNativeType!T) |
| 45 return "*(cast(" ~ T.stringof ~ "*)" ~ ptr ~ ")"; | |
| 302 | 46 else static if (isStringType!T) |
| 47 return "QStringUtil.toNativeString(" ~ ptr ~ ")"; | |
| 288 | 48 else |
| 49 return "*(cast(" ~ T.stringof ~ "*)" ~ ptr ~ ")"; | |
| 50 //res = T.stringof; | |
| 51 } | |
| 52 | |
| 53 // converts a D argument type to C++ for registering in Qt meta system | |
| 54 string qtDeclArg(T)() | |
| 55 { | |
| 303 | 56 static if (isQObjectType!T || isObjectType!T) |
| 288 | 57 return T.stringof ~ "*"; |
| 318 | 58 else static if (isValueType!T) |
| 59 return T.stringof; | |
| 302 | 60 else static if (isStringType!T) |
| 61 return "QString"; | |
| 309 | 62 else static if (isQList!T) |
| 318 | 63 { |
| 64 alias templateParam!T ElementType; | |
| 65 static if (is(ElementType == string)) | |
| 66 return "QStringList"; | |
| 67 else | |
| 68 return "QList<" ~ qtDeclArg!(templateParam!T)() ~ ">"; | |
| 69 } | |
| 288 | 70 else static if (isNativeType!T) |
| 302 | 71 return Unqual!T.stringof; |
| 288 | 72 else |
| 73 return T.stringof; | |
| 74 } | |
| 75 | |
| 76 // converts an argument from D to C++ in a signal emitter | |
| 77 string convertSignalArgument(T)(string arg) | |
| 78 { | |
| 303 | 79 static if (isQObjectType!T || isObjectType!T) |
|
323
7a3c43424dca
make all examples compile with new signals/slots
eldar_ins@eldar-laptop
parents:
319
diff
changeset
|
80 return arg ~ " ? " "&" ~ arg ~ ".__nativeId : cast(void**) &" ~ arg; // since it is a pointer type check arg for null |
| 318 | 81 else static if (isValueType!T) |
| 288 | 82 return arg ~ ".__nativeId"; |
| 302 | 83 else static if (isStringType!T) |
| 318 | 84 return "&_qt" ~ arg; |
| 288 | 85 else static if (isNativeType!T) |
| 318 | 86 return "&" ~ arg; |
| 288 | 87 else |
| 318 | 88 return "&" ~ arg; |
| 288 | 89 } |
| 302 | 90 |
| 91 string prepareSignalArguments(Args...)() | |
| 92 { | |
| 93 string res; | |
| 94 foreach(i, _; Args) | |
| 95 static if (isStringType!(Args[i])) | |
| 96 res ~= "auto _qt_t" ~ __toString(i) ~ " = QString(_t" ~ __toString(i) ~ ");\n"; | |
| 97 return res; | |
| 98 } |