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1 #ifndef LWLIB_INTERNAL_H
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2 #define LWLIB_INTERNAL_H
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3
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4 #include "lwlib.h"
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5
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6 /* This represents a single widget within a widget tree. All the
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7 widgets in a widget tree are chained through the `next' field.
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8 `info' is a back pointer to the widget tree. */
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9
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10 typedef struct _widget_instance
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11 {
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12 Widget widget;
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13 Widget parent;
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14 Boolean pop_up_p;
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15 struct _widget_info* info;
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16 struct _widget_instance* next;
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17 } widget_instance;
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18
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19 /* This represents a single widget tree, such as a single menubar.
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20 The global variable `all_widget_info' lists all widget trees,
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21 chained through the `next' field of this structure. */
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22
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23 typedef struct _widget_info
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24 {
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25 char* type;
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26 char* name;
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27 LWLIB_ID id;
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28 widget_value* val;
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29 Boolean busy;
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30 lw_callback pre_activate_cb;
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31 lw_callback selection_cb;
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32 lw_callback post_activate_cb;
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33 struct _widget_instance* instances;
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34 struct _widget_info* next;
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35 } widget_info;
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36
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37 typedef Widget
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38 (*widget_creation_function) (widget_instance* instance);
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39
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40 typedef struct _widget_creation_entry
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41 {
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42 CONST char* type;
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43 widget_creation_function function;
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44 } widget_creation_entry;
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45
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46 /* update all other instances of a widget. Can be used in a callback when
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47 a wiget has been used by the user */
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48 void
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49 lw_internal_update_other_instances (Widget widget, XtPointer closure,
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50 XtPointer call_data);
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51
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52 /* get the widget_value for a widget in a given instance */
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53 widget_value*
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54 lw_get_widget_value_for_widget (widget_instance* instance, Widget w);
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55
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56 widget_info *lw_get_widget_info (LWLIB_ID id);
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57
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58 #endif /* LWLIB_INTERNAL_H */
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59
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