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1 #ifndef INCLUDED_lwlib_h_
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2 #define INCLUDED_lwlib_h_
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3
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4 #include <X11/Intrinsic.h>
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5
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6 #if defined (LWLIB_MENUBARS_LUCID) || defined (LWLIB_MENUBARS_MOTIF) || defined (LWLIB_MENUBARS_ATHENA)
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7 #define NEED_MENUBARS
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8 #endif
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9 #if defined (LWLIB_SCROLLBARS_LUCID) || defined (LWLIB_SCROLLBARS_MOTIF) || defined (LWLIB_SCROLLBARS_ATHENA)
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10 #define NEED_SCROLLBARS
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11 #endif
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12 #if defined (LWLIB_DIALOGS_LUCID) || defined (LWLIB_DIALOGS_MOTIF) || defined (LWLIB_DIALOGS_ATHENA)
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13 #define NEED_DIALOGS
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14 #endif
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15
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16 /*
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17 ** Widget values depend on the Widget type:
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18 **
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19 ** widget: (name value key enabled data contents/selected)
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20 **
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21 ** label: ("name" "string" NULL NULL NULL NULL)
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22 ** BUTTON: ("name" "string" "key" T/F data <default-button-p>)
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23 ** CASCADE (button w/menu):
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24 ** ("name" "string" "key" T/F data (label|button|button w/menu...))
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25 ** INCREMENTAL (button w/menu construction callback):
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26 ** ("name" "string" NULL T/F <opaque pointer>)
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27 ** menubar: ("name" NULL NULL T/F data (button w/menu))
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28 ** scrollbar:("name" NULL NULL T/F NULL NULL)
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29 ** selectable thing:
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30 ** ("name" "string" "key" T/F data T/F)
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31 ** checkbox: selectable thing
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32 ** radio: ("name" NULL NULL T/F data (selectable thing...))
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33 ** strings: ("name" NULL NULL T/F data (selectable thing...))
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34 ** TEXT: ("name" "string" <ign> T/F data)
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35 **
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36 ** Note that the above is EXTREMELY bogus. The "type" of the various entities
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37 ** that a widget_value structure can represent is implicit in the contents of
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38 ** half a dozen slots, instead of there simply being a type field. This
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39 ** should all be rethunk. I've added a type field, but for now it's only used
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40 ** by the new xlwmenu code.
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41 */
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42
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43 typedef unsigned long LWLIB_ID;
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44
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45 typedef enum _change_type
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46 {
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47 NO_CHANGE = 0,
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48 INVISIBLE_CHANGE = 1,
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49 VISIBLE_CHANGE = 2,
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50 STRUCTURAL_CHANGE = 3
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51 } change_type;
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52
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53 typedef enum _widget_value_type
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54 {
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55 UNSPECIFIED_TYPE = 0,
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56 BUTTON_TYPE = 1,
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57 TOGGLE_TYPE = 2,
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58 RADIO_TYPE = 3,
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59 TEXT_TYPE = 4,
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60 SEPARATOR_TYPE = 5,
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61 CASCADE_TYPE = 6,
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62 PUSHRIGHT_TYPE = 7,
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63 INCREMENTAL_TYPE = 8
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64 } widget_value_type;
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65
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66 typedef enum _scroll_action
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67 {
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68 SCROLLBAR_LINE_UP = 0,
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69 SCROLLBAR_LINE_DOWN = 1,
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70 SCROLLBAR_PAGE_UP = 2,
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71 SCROLLBAR_PAGE_DOWN = 3,
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72 SCROLLBAR_DRAG = 4,
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73 SCROLLBAR_CHANGE = 5,
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74 SCROLLBAR_TOP = 6,
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75 SCROLLBAR_BOTTOM = 7
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76 } scroll_action;
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77
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78 typedef struct _scroll_event
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79 {
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80 scroll_action action;
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81 int slider_value;
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82 Time time;
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83 } scroll_event;
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84
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85 typedef struct _scrollbar_values
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86 {
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87 int line_increment;
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88 int page_increment;
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89
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90 int minimum;
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91 int maximum;
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92
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93 int slider_size;
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94 int slider_position;
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95
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96 int scrollbar_width, scrollbar_height;
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97 int scrollbar_x, scrollbar_y;
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98 } scrollbar_values;
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99
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100 typedef struct _widget_args
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101 {
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102 /* some things are only possible at creation time. args are applied
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103 to widgets at creation time. */
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104 ArgList args;
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105 int nargs;
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106 /* Copying args is impossible so we make the caller give us heap allocated
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107 args and free them when on-one wants them any more. */
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108 int ref_count;
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109 } widget_args;
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110
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111 typedef struct _widget_value
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112 {
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113 /* This slot is only partially utilized right now. */
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114 widget_value_type type;
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115
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116 /* name of widget */
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117 char* name;
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118 /* value (meaning BOGUSLY depend on widget type) */
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119 char* value;
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120 /* keyboard equivalent. no implications for XtTranslations */
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121 char* key;
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122 /* accelerator key. For XEmacs, this should be a Lisp_Object holding a
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123 char or symbol suitable for passing to event_matches_key_specifier_p.
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124 Outside of emacs, this can be anything: an X KeySym is a good idea.
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125 lwlib provides support functions for keyboard traversal of menus. Actual
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126 implementation of those accelerators is up to the application.
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127 */
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128 XtPointer accel;
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129 /* true if enabled */
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130 Boolean enabled;
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131 /* true if selected */
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132 Boolean selected;
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133 /* true if was edited (maintained by get_value) */
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134 Boolean edited;
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135 /* true if has changed (maintained by lw library) */
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136 change_type change;
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137 /* Contents of the sub-widgets, also selected slot for checkbox */
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138 struct _widget_value* contents;
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139 /* data passed to callback */
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140 XtPointer call_data;
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141 /* next one in the list */
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142 struct _widget_value* next;
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143 /* slot for the toolkit dependent part. Always initialize to NULL. */
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144 void* toolkit_data;
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145 /* tell us if we should free the toolkit data slot when freeing the
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146 widget_value itself. */
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147 Boolean free_toolkit_data;
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148
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149 /* data defining a scrollbar; only valid if type == "scrollbar" */
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150 scrollbar_values *scrollbar_data;
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151
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152 /* A reference counted arg structure. */
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153 struct _widget_args *args;
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154 /* we resource the widget_value structures; this points to the next
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155 one on the free list if this one has been deallocated. */
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156 struct _widget_value *free_list;
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157
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158 } widget_value;
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159
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160
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161 typedef void (*lw_callback) (Widget w, LWLIB_ID id, XtPointer data);
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162
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163 /* menu stuff */
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164 /* maybe this should go into a generic lwmenu.h */
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165
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166 extern int lw_menu_active;
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167
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168 #if defined (LWLIB_MENUBARS_LUCID)
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169 #include "xlwmenu.h"
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170 #define lw_set_menu xlw_set_menu
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171 #define lw_push_menu xlw_push_menu
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172 #define lw_pop_menu xlw_pop_menu
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173 #define lw_set_item xlw_set_item
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174 #define lw_map_menu xlw_map_menu
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175 #define lw_display_menu xlw_display_menu
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176 #define lw_kill_menus xlw_kill_menus
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177 #define lw_get_entries xlw_get_entries
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178 #define lw_menu_level xlw_menu_level
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179 #else /* LWLIB_MENUBARS_LUCID */
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175
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180 /* do this for the other toolkits too */
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181 #endif /* LWLIB_MENUBARS_LUCID */
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182
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183 #if defined (LWLIB_TABS_LUCID)
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184 #include "xlwtabs.h"
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185 #endif
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186
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187 void lw_register_widget (const char* type, const char* name, LWLIB_ID id,
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188 widget_value* val, lw_callback pre_activate_cb,
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189 lw_callback selection_cb,
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190 lw_callback post_activate_cb);
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191 Widget lw_get_widget (LWLIB_ID id, Widget parent, Boolean pop_up_p);
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192 Widget lw_make_widget (LWLIB_ID id, Widget parent, Boolean pop_up_p);
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193 Widget lw_create_widget (const char* type, const char* name, LWLIB_ID id,
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194 widget_value* val, Widget parent, Boolean pop_up_p,
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195 lw_callback pre_activate_cb,
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196 lw_callback selection_cb,
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197 lw_callback post_activate_cb);
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198 LWLIB_ID lw_get_widget_id (Widget w);
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199 int lw_map_widget_values (LWLIB_ID id, int (*mapfunc) (widget_value *value,
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200 void *closure),
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201 void *closure);
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202 void lw_modify_all_widgets (LWLIB_ID id, widget_value* val, Boolean deep_p);
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203 void lw_destroy_widget (Widget w);
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204 void lw_destroy_all_widgets (LWLIB_ID id);
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205 void lw_destroy_everything (void);
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206 void lw_destroy_all_pop_ups (void);
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207 Widget lw_raise_all_pop_up_widgets (void);
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208 widget_value* lw_get_all_values (LWLIB_ID id);
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209 Boolean lw_get_some_values (LWLIB_ID id, widget_value* val);
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210 void lw_pop_up_all_widgets (LWLIB_ID id);
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211 void lw_pop_down_all_widgets (LWLIB_ID id);
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212 void lw_add_value_args_to_args (widget_value* wv, ArgList addto, int* offset);
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213 void lw_add_widget_value_arg (widget_value* wv, String name, XtArgVal value);
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214 void lw_copy_widget_value_args (widget_value* copy, widget_value* val);
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215
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216 widget_value *malloc_widget_value (void);
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217 void free_widget_value (widget_value *);
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218 void free_widget_value_tree (widget_value *wv);
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219 widget_value *replace_widget_value_tree (widget_value*, widget_value*);
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220
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221 void lw_popup_menu (Widget, XEvent *);
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222
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223 /* Toolkit independent way of focusing on a Widget at the Xt level. */
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224 void lw_set_keyboard_focus (Widget parent, Widget w);
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225
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226 /* Silly Energize hack to invert the "sheet" button */
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227 void lw_show_busy (Widget w, Boolean busy);
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228
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229 #endif /* INCLUDED_lwlib_h_ */
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