1 #include "../xt.h"
2 #include <Xm/Xm.h>
3 #include <Xm/List.h>
4
String_Table_To_Scheme(XmString * tab,int len)5 static Object String_Table_To_Scheme (XmString *tab, int len) {
6 Object ret, tail;
7 char *text;
8 GC_Node2;
9
10 tail = ret = P_Make_List (Make_Integer (len), Null);
11 GC_Link2 (ret, tail);
12 for ( ; len > 0; len--, tail = Cdr (tail)) {
13 if (!XmStringGetLtoR (*tab++, XmSTRING_DEFAULT_CHARSET, &text))
14 text = "";
15 Car (tail) = Make_String (text, strlen (text));
16 }
17 GC_Unlink;
18 return ret;
19 }
20
21 static SYMDESCR Type_Syms[] = {
22 { "initial", XmINITIAL },
23 { "modification", XmMODIFICATION },
24 { "addition", XmADDITION },
25 { 0, 0}
26 };
27
Get_List_CB(XmListCallbackStruct * p)28 static Object Get_List_CB (XmListCallbackStruct *p) {
29 Object ret, s;
30 char *text;
31 GC_Node2;
32
33 if (!XmStringGetLtoR (p->item, XmSTRING_DEFAULT_CHARSET, &text))
34 text = "";
35 ret = s = Make_String (text, strlen (text));
36 GC_Link2 (ret, s);
37 ret = Cons (ret, Null);
38 if (p->reason == XmCR_MULTIPLE_SELECT
39 || p->reason == XmCR_EXTENDED_SELECT) {
40 s = String_Table_To_Scheme (p->selected_items, p->selected_item_count);
41 ret = Cons (s, ret);
42 s = Bits_To_Symbols ((unsigned long)p->selection_type, 0, Type_Syms);
43 ret = Cons (s, ret);
44 } else {
45 ret = Cons (Make_Integer (p->item_position), ret);
46 }
47 s = Get_Any_CB ((XmAnyCallbackStruct *)p);
48 ret = Cons (Cdr (s), ret);
49 ret = Cons (Car (s), ret);
50 GC_Unlink;
51 return ret;
52 }
53
S_Callback_List_BrowseSelectionCallback(XtArgVal x)54 static Object S_Callback_List_BrowseSelectionCallback (XtArgVal x) {
55 return Get_List_CB ((XmListCallbackStruct *)x);
56 }
57
S_Callback_List_DefaultActionCallback(XtArgVal x)58 static Object S_Callback_List_DefaultActionCallback (XtArgVal x) {
59 return Get_List_CB ((XmListCallbackStruct *)x);
60 }
61
S_Callback_List_ExtendedSelectionCallback(XtArgVal x)62 static Object S_Callback_List_ExtendedSelectionCallback (XtArgVal x) {
63 return Get_List_CB ((XmListCallbackStruct *)x);
64 }
65
S_Callback_List_MultipleSelectionCallback(XtArgVal x)66 static Object S_Callback_List_MultipleSelectionCallback (XtArgVal x) {
67 return Get_List_CB ((XmListCallbackStruct *)x);
68 }
69
S_Callback_List_SingleSelectionCallback(XtArgVal x)70 static Object S_Callback_List_SingleSelectionCallback (XtArgVal x) {
71 return Get_List_CB ((XmListCallbackStruct *)x);
72 }
73
elk_init_motif_list()74 void elk_init_motif_list () {
75 XtResourceList r = 0;
76 Define_Class ("list", xmListWidgetClass, r, 0);
77 Define_Callback ("list", "singleSelectionCallback", 1);
78 Define_Callback ("list", "multipleSelectionCallback", 1);
79 Define_Callback ("list", "extendedSelectionCallback", 1);
80 Define_Callback ("list", "defaultActionCallback", 1);
81 Define_Callback ("list", "browseSelectionCallback", 1);
82 Define_Converter_To_Scheme ("callback:list-singleSelectionCallback", S_Callback_List_SingleSelectionCallback);
83 Define_Converter_To_Scheme ("callback:list-multipleSelectionCallback", S_Callback_List_MultipleSelectionCallback);
84 Define_Converter_To_Scheme ("callback:list-extendedSelectionCallback", S_Callback_List_ExtendedSelectionCallback);
85 Define_Converter_To_Scheme ("callback:list-defaultActionCallback", S_Callback_List_DefaultActionCallback);
86 Define_Converter_To_Scheme ("callback:list-browseSelectionCallback", S_Callback_List_BrowseSelectionCallback);
87 P_Provide(Intern("motif:list"));
88 }
89