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1 #ifndef INCLUDED_lwlib_internal_h_
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2 #define INCLUDED_lwlib_internal_h_
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428
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3
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4 #include "lwlib.h"
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5
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448
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6 #ifdef USE_ASSERTIONS
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7 /* Highly dubious kludge */
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8 /* (thanks, Jamie, I feel better now -- ben) */
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9 void assert_failed (const char *, int, const char *);
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10 # define abort() (assert_failed (__FILE__, __LINE__, "abort()"))
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11 # define assert(x) ((x) ? (void) 0 : assert_failed (__FILE__, __LINE__, #x))
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12 #else
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13 # ifdef DEBUG_XEMACS
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14 # define assert(x) ((x) ? (void) 0 : (void) abort ())
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15 # else
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16 # define assert(x)
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17 # endif
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18 #endif
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19
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20 /* This represents a single widget within a widget tree. All the
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21 widgets in a widget tree are chained through the `next' field.
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22 `info' is a back pointer to the widget tree. */
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23
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24 typedef struct _widget_instance
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25 {
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26 Widget widget;
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27 Widget parent;
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28 Boolean pop_up_p;
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29 struct _widget_info* info;
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30 struct _widget_instance* next;
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31 } widget_instance;
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32
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33 /* This represents a single widget tree, such as a single menubar.
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34 The global variable `all_widget_info' lists all widget trees,
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35 chained through the `next' field of this structure. */
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36
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37 typedef struct _widget_info
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38 {
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39 char* type;
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40 char* name;
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41 LWLIB_ID id;
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42 widget_value* val;
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43 Boolean busy;
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44 lw_callback pre_activate_cb;
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45 lw_callback selection_cb;
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46 lw_callback post_activate_cb;
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47 struct _widget_instance* instances;
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48 struct _widget_info* next;
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49 } widget_info;
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50
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51 typedef Widget
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52 (*widget_creation_function) (widget_instance* instance);
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53
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54 typedef struct _widget_creation_entry
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55 {
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56 const char* type;
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57 widget_creation_function function;
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58 } widget_creation_entry;
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59
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60 /* update all other instances of a widget. Can be used in a callback when
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61 a widget has been used by the user */
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62 void
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63 lw_internal_update_other_instances (Widget widget, XtPointer closure,
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64 XtPointer call_data);
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65
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66 /* get the widget_value for a widget in a given instance */
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67 widget_value*
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68 lw_get_widget_value_for_widget (widget_instance* instance, Widget w);
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69
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70 widget_info *lw_get_widget_info (LWLIB_ID id);
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71
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72 #endif /* INCLUDED_lwlib_internal_h_ */
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