Mercurial > projects > qtd
annotate d2/qtd/Marshal.d @ 349:925386e0e780
renamed MetaMarshall.d
| author | maxter <spambox@d-coding.com> |
|---|---|
| date | Mon, 17 May 2010 21:48:15 +0300 |
| parents | d2/qtd/MetaMarshall.d@96a75b1e5b26 |
| children | 31520b2c0b3c |
| rev | line source |
|---|---|
| 349 | 1 module qtd.Marshal; |
| 288 | 2 |
| 3 import std.traits; | |
| 4 | |
| 344 | 5 import 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 | |
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22 template isQtType(T) |
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23 { |
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24 mixin ("enum isQtType = is(T.__isQtType_" ~ T.stringof ~ ");"); |
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25 } |
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26 /* |
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27 template isQtType(T) |
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28 { |
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29 enum isQtType = isQObjectType!(T) || isObjectType!(T) || isValueType!(T) || is(T.__isQtType); |
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30 } |
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31 */ |
| 288 | 32 template isNativeType(T) // type that doesn't require conversion i.e. is the same in C++ and D |
| 33 { | |
| 302 | 34 enum isNativeType = isNumeric!T || is(T == bool) || is(T == struct); |
| 35 } | |
| 36 | |
| 37 template isStringType(T) // string type | |
| 38 { | |
| 39 enum isStringType = is(T == string); | |
| 288 | 40 } |
| 41 | |
| 309 | 42 template isQList(T) |
| 43 { | |
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44 enum isQList = ctfeStartsWith(Unqual!(T).stringof, "QList!"); |
| 309 | 45 } |
| 46 | |
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47 // returns full name of enum: |
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48 // for Qt enum it is in the form of QPaintDevice::PaintDeviceMetric |
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49 // for pure D enums it is Foo.Bar |
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50 template enumFullName(T) |
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51 { |
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52 static if(!isModule(__traits(parent, T).stringof)) |
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53 { |
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54 static if(isQtType!(__traits(parent, T))) |
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55 enum enumFullName = qualifiedCppName!T; |
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56 else |
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57 enum enumFullName = qualifiedDName!T; |
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58 } |
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59 else |
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60 enum enumFullName = qualifiedDName!T; |
| 349 | 61 |
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62 } |
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63 |
| 288 | 64 // converts an argumnent from C++ to D in qt_metacall |
| 65 string metaCallArgument(T)(string ptr) | |
| 66 { | |
| 303 | 67 static if (isQObjectType!T || isObjectType!T) |
| 288 | 68 return T.stringof ~ ".__getObject(*cast(void**)(" ~ ptr ~ "))"; |
| 318 | 69 else static if (isValueType!T) |
| 70 return "new " ~ T.stringof ~ "(" ~ T.stringof ~ ".__constructNativeCopy(" ~ ptr ~ "))"; | |
| 288 | 71 else static if (isNativeType!T) |
| 72 return "*(cast(" ~ T.stringof ~ "*)" ~ ptr ~ ")"; | |
| 302 | 73 else static if (isStringType!T) |
| 74 return "QStringUtil.toNativeString(" ~ ptr ~ ")"; | |
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75 else static if (is(T == enum)) |
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76 return "*(cast(" ~ qualifiedDName!T ~ "*)" ~ ptr ~ ")"; |
| 288 | 77 else |
| 78 return "*(cast(" ~ T.stringof ~ "*)" ~ ptr ~ ")"; | |
| 79 //res = T.stringof; | |
| 80 } | |
| 81 | |
| 82 // converts a D argument type to C++ for registering in Qt meta system | |
| 83 string qtDeclArg(T)() | |
| 84 { | |
| 303 | 85 static if (isQObjectType!T || isObjectType!T) |
| 288 | 86 return T.stringof ~ "*"; |
| 318 | 87 else static if (isValueType!T) |
| 88 return T.stringof; | |
| 302 | 89 else static if (isStringType!T) |
| 90 return "QString"; | |
| 309 | 91 else static if (isQList!T) |
| 318 | 92 { |
| 93 alias templateParam!T ElementType; | |
| 94 static if (is(ElementType == string)) | |
| 95 return "QStringList"; | |
| 96 else | |
| 97 return "QList<" ~ qtDeclArg!(templateParam!T)() ~ ">"; | |
| 98 } | |
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99 else static if (is(T == enum)) |
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100 return enumFullName!T; |
| 288 | 101 else static if (isNativeType!T) |
| 302 | 102 return Unqual!T.stringof; |
| 288 | 103 else |
| 104 return T.stringof; | |
| 105 } | |
| 106 | |
| 107 // converts an argument from D to C++ in a signal emitter | |
| 108 string convertSignalArgument(T)(string arg) | |
| 109 { | |
| 303 | 110 static if (isQObjectType!T || isObjectType!T) |
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111 return arg ~ " ? " "&" ~ arg ~ ".__nativeId : cast(void**) &" ~ arg; // since it is a pointer type check arg for null |
| 318 | 112 else static if (isValueType!T) |
| 288 | 113 return arg ~ ".__nativeId"; |
| 302 | 114 else static if (isStringType!T) |
| 318 | 115 return "&_qt" ~ arg; |
| 288 | 116 else static if (isNativeType!T) |
| 318 | 117 return "&" ~ arg; |
| 288 | 118 else |
| 318 | 119 return "&" ~ arg; |
| 288 | 120 } |
| 302 | 121 |
| 122 string prepareSignalArguments(Args...)() | |
| 123 { | |
| 124 string res; | |
| 125 foreach(i, _; Args) | |
| 126 static if (isStringType!(Args[i])) | |
| 127 res ~= "auto _qt_t" ~ __toString(i) ~ " = QString(_t" ~ __toString(i) ~ ");\n"; | |
| 128 return res; | |
| 129 } |