| 1 | // ============================================================== // |
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| 2 | // // |
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| 3 | // File : aw_varupdate.hxx // |
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| 4 | // Purpose : // |
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| 5 | // // |
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| 6 | // Institute of Microbiology (Technical University Munich) // |
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| 7 | // http://www.arb-home.de/ // |
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| 8 | // // |
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| 9 | // ============================================================== // |
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| 10 | |
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| 11 | #ifndef AW_VARUPDATE_HXX |
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| 12 | #define AW_VARUPDATE_HXX |
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| 13 | |
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| 14 | #if defined(DEBUG) |
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| 15 | // #define DUMP_BUTTON_CREATION |
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| 16 | #endif // DEBUG |
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| 17 | |
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| 18 | class VarUpdateInfo : virtual Noncopyable { // used to refresh single items on change |
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| 19 | AW_window *aw_parent; |
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| 20 | Widget widget; |
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| 21 | AW_widget_type widget_type; |
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| 22 | AW_awar *awar; |
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| 23 | AW_scalar value; |
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| 24 | AW_cb *cbs; |
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| 25 | |
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| 26 | union TS { // AW_widget_type-specific |
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| 27 | AW_selection_list *sellist; // only used for AW_WIDGET_SELECTION_LIST |
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| 28 | AW_ScalerType scalerType; // only used for AW_WIDGET_SCALER |
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| 29 | TS() : sellist(NULp) {} |
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| 30 | } ts; |
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| 31 | |
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| 32 | void check_unwanted_callback() { |
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| 33 | #if defined(DEVEL_RALF) |
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| 34 | if (cbs) { |
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| 35 | fprintf(stderr, "Warning: Unwanted user-callback bound to VarUpdateInfo. Should be rewritten using an awar-callback\n"); |
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| 36 | } |
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| 37 | // aw_assert(!cbs); // @@@ generally unwanted (see #559) |
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| 38 | // @@@ if this assertion stops failing -> remove cbs from VarUpdateInfo! |
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| 39 | #endif |
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| 40 | #if defined(ASSERTION_USED) |
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| 41 | if (cbs) { |
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| 42 | aw_assert(widget_type != AW_WIDGET_SELECTION_LIST); // binding callbacks to selection lists is obsolete (see #559) |
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| 43 | } |
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| 44 | #endif |
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| 45 | } |
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| 46 | |
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| 47 | public: |
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| 48 | VarUpdateInfo(AW_window *aw, Widget w, AW_widget_type wtype, AW_awar *a, AW_cb *cbs_) |
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| 49 | : aw_parent(aw), |
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| 50 | widget(w), |
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| 51 | widget_type(wtype), |
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| 52 | awar(a), |
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| 53 | value(a), |
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| 54 | cbs(cbs_) |
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| 55 | { |
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| 56 | check_unwanted_callback(); |
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| 57 | } |
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| 58 | template<typename T> |
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| 59 | VarUpdateInfo(AW_window *aw, Widget w, AW_widget_type wtype, AW_awar *a, T t, AW_cb *cbs_) |
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| 60 | : aw_parent(aw), |
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| 61 | widget(w), |
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| 62 | widget_type(wtype), |
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| 63 | awar(a), |
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| 64 | value(t), |
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| 65 | cbs(cbs_) |
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| 66 | { |
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| 67 | check_unwanted_callback(); |
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| 68 | } |
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| 69 | |
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| 70 | void change_from_widget(XtPointer call_data); |
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| 71 | |
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| 72 | void set_widget(Widget w) { widget = w; } |
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| 73 | |
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| 74 | void set_sellist(AW_selection_list *asl) { |
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| 75 | aw_assert(widget_type == AW_WIDGET_SELECTION_LIST); |
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| 76 | ts.sellist = asl; |
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| 77 | } |
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| 78 | void set_scalerType(AW_ScalerType scalerType_) { |
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| 79 | aw_assert(widget_type == AW_WIDGET_SCALER); |
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| 80 | ts.scalerType = scalerType_; |
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| 81 | } |
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| 82 | |
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| 83 | AW_awar *get_awar() { return awar; } |
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| 84 | }; |
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| 85 | |
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| 86 | #define SPACE_BEHIND_BUTTON 3 |
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| 87 | |
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| 88 | void AW_variable_update_callback(Widget /*wgt*/, XtPointer variable_update_struct, XtPointer call_data); |
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| 89 | void aw_attach_widget(Widget w, AW_at *_at, int default_width = -1); |
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| 90 | |
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| 91 | #else |
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| 92 | #error aw_varupdate.hxx included twice |
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| 93 | #endif // AW_VARUPDATE_HXX |
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