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comparison qt/qtd/MetaMarshall.d @ 302:55ee4603365d signals

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string arguments for signals
author eldar_ins@eldar-laptop
date Sat, 12 Dec 2009 03:22:54 +0500
parents 8627891e4556
children 98b211f3ee34
comparison
equal deleted inserted replaced
301:4d8481385c71 302:55ee4603365d
1 module qt.qtd.MetaMarshall; 1 module qt.qtd.MetaMarshall;
2 2
3 import std.traits; 3 import std.traits;
4
5 // shouldn't be here
6
7 string __toString(long v)
8 {
9 if (v == 0)
10 return "0";
11
12 string ret;
13
14 bool neg;
15 if (v < 0)
16 {
17 neg = true;
18 v = -v;
19 }
20
21 while (v != 0)
22 {
23 ret = cast(char)(v % 10 + '0') ~ ret;
24 v = cast(long)(v / 10);
25 }
26
27 if (neg)
28 ret = "-" ~ ret;
29
30 return ret;
31 }
4 32
5 template isQObjectType(T) // is a QObject type that belongs to the library 33 template isQObjectType(T) // is a QObject type that belongs to the library
6 { 34 {
7 enum isQObjectType = is(T.__isQObjectType); 35 enum isQObjectType = is(T.__isQObjectType);
8 } 36 }
17 enum isValueType = is(T.__isValueType); 45 enum isValueType = is(T.__isValueType);
18 } 46 }
19 47
20 template isNativeType(T) // type that doesn't require conversion i.e. is the same in C++ and D 48 template isNativeType(T) // type that doesn't require conversion i.e. is the same in C++ and D
21 { 49 {
22 enum isNativeType = isNumeric!T || is(T == bool); 50 enum isNativeType = isNumeric!T || is(T == bool) || is(T == struct);
51 }
52
53 template isStringType(T) // string type
54 {
55 enum isStringType = is(T == string);
23 } 56 }
24 57
25 // converts an argumnent from C++ to D in qt_metacall 58 // converts an argumnent from C++ to D in qt_metacall
26 string metaCallArgument(T)(string ptr) 59 string metaCallArgument(T)(string ptr)
27 { 60 {
28 static if (isQObjectType!T) 61 static if (isQObjectType!T)
29 return T.stringof ~ ".__getObject(*cast(void**)(" ~ ptr ~ "))"; 62 return T.stringof ~ ".__getObject(*cast(void**)(" ~ ptr ~ "))";
30 else static if (isNativeType!T) 63 else static if (isNativeType!T)
31 return "*(cast(" ~ T.stringof ~ "*)" ~ ptr ~ ")"; 64 return "*(cast(" ~ T.stringof ~ "*)" ~ ptr ~ ")";
65 else static if (isStringType!T)
66 return "QStringUtil.toNativeString(" ~ ptr ~ ")";
32 else 67 else
33 return "*(cast(" ~ T.stringof ~ "*)" ~ ptr ~ ")"; 68 return "*(cast(" ~ T.stringof ~ "*)" ~ ptr ~ ")";
34 //res = T.stringof; 69 //res = T.stringof;
35 } 70 }
36 71
37 // converts a D argument type to C++ for registering in Qt meta system 72 // converts a D argument type to C++ for registering in Qt meta system
38 string qtDeclArg(T)() 73 string qtDeclArg(T)()
39 { 74 {
40 static if (isQObjectType!T) 75 static if (isQObjectType!T)
41 return T.stringof ~ "*"; 76 return T.stringof ~ "*";
77 else static if (isStringType!T)
78 return "QString";
42 else static if (isNativeType!T) 79 else static if (isNativeType!T)
43 return T.stringof; 80 return Unqual!T.stringof;
44 else 81 else
45 return T.stringof; 82 return T.stringof;
46 } 83 }
47 84
48 // converts an argument from D to C++ in a signal emitter 85 // converts an argument from D to C++ in a signal emitter
49 string convertSignalArgument(T)(string arg) 86 string convertSignalArgument(T)(string arg)
50 { 87 {
51 static if (isQObjectType!T) 88 static if (isQObjectType!T)
52 return arg ~ ".__nativeId"; 89 return arg ~ ".__nativeId";
90 else static if (isStringType!T)
91 return "_qt" ~ arg;
53 else static if (isNativeType!T) 92 else static if (isNativeType!T)
54 return arg; 93 return arg;
55 else 94 else
56 return arg; 95 return arg;
57 } 96 }
97
98 string prepareSignalArguments(Args...)()
99 {
100 string res;
101 foreach(i, _; Args)
102 static if (isStringType!(Args[i]))
103 res ~= "auto _qt_t" ~ __toString(i) ~ " = QString(_t" ~ __toString(i) ~ ");\n";
104 return res;
105 }