| 1 | // ================================================================= // |
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| 2 | // // |
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| 3 | // File : cb.h // |
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| 4 | // Purpose : define typesafe callback-factories for common types // |
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| 5 | // // |
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| 6 | // Coded by Ralf Westram (coder@reallysoft.de) in September 2010 // |
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| 7 | // Institute of Microbiology (Technical University Munich) // |
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| 8 | // http://www.arb-home.de/ // |
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| 9 | // // |
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| 10 | // ================================================================= // |
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| 11 | |
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| 12 | #ifndef CB_H |
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| 13 | #define CB_H |
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| 14 | |
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| 15 | #ifndef ARBDB_BASE_H |
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| 16 | #include <arbdb_base.h> |
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| 17 | #endif |
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| 18 | |
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| 19 | class AW_root; |
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| 20 | class AW_window; |
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| 21 | class AW_awar; |
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| 22 | |
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| 23 | // generic callback parameter (used like a void*) |
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| 24 | typedef long AW_CL; // client data (casted from pointer or value) |
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| 25 | |
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| 26 | // simplest callback flavours of each type |
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| 27 | typedef AW_window *(*CreateWindowCallbackSimple)(AW_root*); // use makeCreateWindowCallback if you need parameters |
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| 28 | typedef void (*RootCallbackSimple)(AW_root*); // use makeRootCallback if you need parameters |
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| 29 | typedef void (*WindowCallbackSimple)(AW_window*); // use makeWindowCallback if you need parameters |
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| 30 | |
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| 31 | // --------------------------- |
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| 32 | // typesafe callbacks |
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| 33 | |
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| 34 | #ifndef CBTYPES_H |
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| 35 | #include <cbtypes.h> |
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| 36 | #endif |
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| 37 | |
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| 38 | // @@@ the definition of some of these cb-types may be moved into WINDOW |
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| 39 | |
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| 40 | DECLARE_CBTYPE_FVV_AND_BUILDERS(RootCallback, void, AW_root*); // generates makeRootCallback |
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| 41 | DECLARE_CBTYPE_FVV_AND_BUILDERS(TimedCallback, unsigned, AW_root*); // generates makeTimedCallback (return value: 0->do not call again, else: call again after XXX ms) |
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| 42 | DECLARE_CBTYPE_FVV_AND_BUILDERS(WindowCallback, void, AW_window*); // generates makeWindowCallback |
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| 43 | DECLARE_CBTYPE_FVV_AND_BUILDERS(CreateWindowCallback, AW_window*, AW_root*); // generates makeCreateWindowCallback |
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| 44 | |
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| 45 | DECLARE_CBTYPE_FVF_AND_BUILDERS(DatabaseCallback, void, GBDATA*, GB_CB_TYPE); // generates makeDatabaseCallback |
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| 46 | |
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| 47 | DECLARE_CBTYPE_FFV_AND_BUILDERS(TreeAwarCallback, void, AW_awar*, bool); // generates makeTreeAwarCallback |
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| 48 | |
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| 49 | // Note: For rarely used callback-types a simpler idiom can be used. |
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| 50 | // see e.g. ../../AWT/awt_modules.hxx@UNTYPED |
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| 51 | |
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| 52 | #else |
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| 53 | #error cb.h included twice |
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| 54 | #endif // CB_H |
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