quakeforge/libs/console/menu.c

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/*
menu.c
Menu support code and interface to QC
Copyright (C) 2001 Bill Currie
Author: Bill Currie
Date: 2002/1/18
This program is free software; you can redistribute it and/or
modify it under the terms of the GNU General Public License
as published by the Free Software Foundation; either version 2
of the License, or (at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
See the GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to:
Free Software Foundation, Inc.
59 Temple Place - Suite 330
Boston, MA 02111-1307, USA
*/
#ifdef HAVE_CONFIG_H
# include "config.h"
#endif
#include <stdlib.h>
#include <string.h>
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#include "QF/cmd.h"
#include "QF/console.h"
#include "QF/csqc.h"
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#include "QF/cvar.h"
#include "QF/draw.h"
#include "QF/hash.h"
#include "QF/progs.h"
#include "QF/quakefs.h"
#include "QF/render.h"
#include "QF/ruamoko.h"
#include "QF/sound.h"
#include "QF/sys.h"
#include "QF/view.h"
#include "QF/plugin/console.h"
#include "QF/plugin/vid_render.h"
typedef struct menu_pic_s {
struct menu_pic_s *next;
int x, y;
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int srcx, srcy, width, height;
const char *name;
} menu_pic_t;
typedef struct menu_item_s {
struct menu_item_s *parent;
struct menu_item_s **items;
int num_items;
int max_items;
int cur_item;
int x, y;
func_t func;
func_t cursor;
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func_t keyevent;
func_t draw;
func_t enter_hook;
func_t leave_hook;
unsigned fadescreen:1;
unsigned allkeys:1;
const char *text;
menu_pic_t *pics;
} menu_item_t;
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static cvar_t *confirm_quit;
static progs_t menu_pr_state;
static menu_item_t *menu;
static hashtab_t *menu_hash;
static func_t menu_init;
static func_t menu_quit;
static func_t menu_draw_hud;
static func_t menu_pre;
static func_t menu_post;
static const char *top_menu;
typedef struct menu_func_s {
const char *name;
func_t *func;
} menu_func_t;
static menu_func_t menu_functions[] = {
{"menu_init", &menu_init},
{"menu_draw_hud", &menu_draw_hud},
{"menu_pre", &menu_pre},
{"menu_post", &menu_post},
};
static void
run_menu_pre (void)
{
PR_ExecuteProgram (&menu_pr_state, menu_pre);
}
static void
run_menu_post (void)
{
PR_ExecuteProgram (&menu_pr_state, menu_post);
}
static int
menu_resolve_globals (progs_t *pr)
{
const char *sym;
ddef_t *def;
dfunction_t *f;
size_t i;
for (i = 0;
i < sizeof (menu_functions) / sizeof (menu_functions[0]); i++) {
sym = menu_functions[i].name;
if (!(f = PR_FindFunction (pr, sym)))
goto error;
*menu_functions[i].func = (func_t) (f - menu_pr_state.pr_functions);
}
if (!(def = PR_FindGlobal (pr, sym = "time")))
goto error;
menu_pr_state.globals.time = &G_FLOAT (pr, def->ofs);
return 1;
error:
Sys_Printf ("%s: undefined symbol %s\n", pr->progs_name, sym);
return 0;
}
static const char *
menu_get_key (const void *m, void *unused)
{
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return ((menu_item_t *) m)->text;
}
static void
menu_free (void *_m, void *unused)
{
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int i;
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menu_item_t *m = (menu_item_t *) _m;
if (m->text)
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free ((char *) m->text);
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if (m->parent) {
// remove self from parent list to avoid double frees
for (i = 0; i < m->parent->num_items; i++)
if (m->parent->items[i] == m)
m->parent->items[i] = 0;
}
if (m->items) {
for (i = 0; i < m->num_items; i++)
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if (m->items[i]) {
m->items[i]->parent = 0;
if (m->items[i]->text)
Hash_Del (menu_hash, m->items[i]->text);
menu_free (m->items[i], 0);
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}
free (m->items);
}
while (m->pics) {
menu_pic_t *p = m->pics;
m->pics = p->next;
if (p->name)
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free ((char *) p->name);
free (p);
}
free (m);
}
static void
menu_add_item (menu_item_t *m, menu_item_t *i)
{
if (m->num_items == m->max_items) {
m->items = realloc (m->items,
(m->max_items + 8) * sizeof (menu_item_t *));
m->max_items += 8;
}
i->parent = m;
m->items[m->num_items++] = i;
}
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static void
menu_pic (int x, int y, const char *name,
int srcx, int srcy, int width, int height)
{
menu_pic_t *pic = malloc (sizeof (menu_pic_t));
pic->x = x;
pic->y = y;
pic->name = strdup (name);
pic->srcx = srcx;
pic->srcy = srcy;
pic->width = width;
pic->height = height;
pic->next = menu->pics;
menu->pics = pic;
}
static void
bi_Menu_Begin (progs_t *pr)
{
int x = P_INT (pr, 0);
int y = P_INT (pr, 1);
const char *text = P_GSTRING (pr, 2);
menu_item_t *m = calloc (sizeof (menu_item_t), 1);
m->x = x;
m->y = y;
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m->text = text && text[0] ? strdup (text) : 0;
if (menu)
menu_add_item (menu, m);
menu = m;
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if (m->text)
Hash_Add (menu_hash, m);
}
static void
bi_Menu_FadeScreen (progs_t *pr)
{
menu->fadescreen = P_INT (pr, 0);
}
static void
bi_Menu_Draw (progs_t *pr)
{
menu->draw = P_FUNCTION (pr, 0);
}
static void
bi_Menu_EnterHook (progs_t *pr)
{
menu->enter_hook = P_FUNCTION (pr, 0);
}
static void
bi_Menu_LeaveHook (progs_t *pr)
{
menu->leave_hook = P_FUNCTION (pr, 0);
}
static void
bi_Menu_Pic (progs_t *pr)
{
int x = P_INT (pr, 0);
int y = P_INT (pr, 1);
const char *name = P_GSTRING (pr, 2);
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menu_pic (x, y, name, 0, 0, -1, -1);
}
static void
bi_Menu_SubPic (progs_t *pr)
{
int x = P_INT (pr, 0);
int y = P_INT (pr, 1);
const char *name = P_GSTRING (pr, 2);
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int srcx = P_INT (pr, 3);
int srcy = P_INT (pr, 4);
int width = P_INT (pr, 5);
int height = P_INT (pr, 6);
menu_pic (x, y, name, srcx, srcy, width, height);
}
static void
bi_Menu_CenterPic (progs_t *pr)
{
int x = P_INT (pr, 0);
int y = P_INT (pr, 1);
const char *name = P_GSTRING (pr, 2);
qpic_t *qpic = r_funcs->Draw_CachePic (name, 1);
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if (!qpic)
return;
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menu_pic (x - qpic->width / 2, y, name, 0, 0, -1, -1);
}
static void
bi_Menu_CenterSubPic (progs_t *pr)
{
int x = P_INT (pr, 0);
int y = P_INT (pr, 1);
const char *name = P_GSTRING (pr, 2);
qpic_t *qpic = r_funcs->Draw_CachePic (name, 1);
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int srcx = P_INT (pr, 3);
int srcy = P_INT (pr, 4);
int width = P_INT (pr, 5);
int height = P_INT (pr, 6);
if (!qpic)
return;
menu_pic (x - qpic->width / 2, y, name, srcx, srcy, width, height);
}
static void
bi_Menu_Item (progs_t *pr)
{
int x = P_INT (pr, 0);
int y = P_INT (pr, 1);
const char *text = P_GSTRING (pr, 2);
func_t func = P_FUNCTION (pr, 3);
int allkeys = P_INT (pr, 4);
menu_item_t *mi = calloc (sizeof (menu_item_t), 1);
mi->x = x;
mi->y = y;
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mi->text = text && text[0] ? strdup (text) : 0;
mi->func = func;
mi->parent = menu;
mi->allkeys = allkeys;
menu_add_item (menu, mi);
}
static void
bi_Menu_Cursor (progs_t *pr)
{
func_t func = P_FUNCTION (pr, 0);
menu->cursor = func;
}
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static void
bi_Menu_KeyEvent (progs_t *pr)
{
func_t func = P_FUNCTION (pr, 0);
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menu->keyevent = func;
}
static void
bi_Menu_End (progs_t *pr)
{
menu = menu->parent;
}
static void
bi_Menu_TopMenu (progs_t *pr)
{
const char *name = P_GSTRING (pr, 0);
if (top_menu)
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free ((char *) top_menu);
top_menu = strdup (name);
}
static void
bi_Menu_SelectMenu (progs_t *pr)
{
const char *name = P_GSTRING (pr, 0);
menu = 0;
if (name && *name)
menu = Hash_Find (menu_hash, name);
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if (menu) {
Key_SetKeyDest (key_menu);
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if (menu->enter_hook) {
run_menu_pre ();
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PR_ExecuteProgram (&menu_pr_state, menu->enter_hook);
run_menu_post ();
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}
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} else {
if (name && *name)
Sys_Printf ("no menu \"%s\"\n", name);
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if (con_data.force_commandline) {
Key_SetKeyDest (key_console);
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} else {
Key_SetKeyDest (key_game);
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}
}
}
static void
bi_Menu_SetQuit (progs_t *pr)
{
func_t func = P_FUNCTION (pr, 0);
menu_quit = func;
}
static void
bi_Menu_Quit (progs_t *pr)
{
if (con_data.quit)
con_data.quit ();
Sys_Quit ();
}
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static void
bi_Menu_GetIndex (progs_t *pr)
{
if (menu) {
R_INT (pr) = menu->cur_item;
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} else {
R_INT (pr) = -1;
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}
}
static void
bi_Menu_Next (progs_t *pr)
{
menu->cur_item++;
menu->cur_item %= menu->num_items;
}
static void
bi_Menu_Prev (progs_t *pr)
{
menu->cur_item += menu->num_items - 1;
menu->cur_item %= menu->num_items;
}
static void
bi_Menu_Enter (progs_t *pr)
{
menu_item_t *item;
if (!menu)
return;
item = menu->items[menu->cur_item];
if (item->func) {
run_menu_pre ();
PR_PushFrame (&menu_pr_state);
PR_RESET_PARAMS (&menu_pr_state);
P_STRING (&menu_pr_state, 0) =
PR_SetTempString (&menu_pr_state, item->text);
P_INT (&menu_pr_state, 1) = 0;
PR_ExecuteProgram (&menu_pr_state, item->func);
PR_PopFrame (&menu_pr_state);
run_menu_post ();
} else {
menu = item;
if (menu->enter_hook) {
run_menu_pre ();
PR_ExecuteProgram (&menu_pr_state, menu->enter_hook);
run_menu_post ();
}
}
}
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static void
bi_Menu_Leave (progs_t *pr)
{
if (menu) {
if (menu->leave_hook) {
run_menu_pre ();
PR_ExecuteProgram (&menu_pr_state, menu->leave_hook);
run_menu_post ();
}
menu = menu->parent;
if (!menu) {
if (con_data.force_commandline) {
Key_SetKeyDest (key_console);
} else {
Key_SetKeyDest (key_game);
}
}
}
}
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static void
togglemenu_f (void)
{
if (menu)
Menu_Leave ();
else
Menu_Enter ();
}
static void
quit_f (void)
{
int ret;
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if (confirm_quit->int_val && menu_quit) {
run_menu_pre ();
PR_ExecuteProgram (&menu_pr_state, menu_quit);
ret = R_INT (&menu_pr_state);
run_menu_post ();
if (!ret)
return;
}
bi_Menu_Quit (&menu_pr_state);
}
static void *
menu_allocate_progs_mem (progs_t *pr, int size)
{
return malloc (size);
}
static void
menu_free_progs_mem (progs_t *pr, void *mem)
{
free (mem);
}
static void *
menu_load_file (progs_t *pr, const char *path)
{
return QFS_LoadFile (path, 0);
}
static builtin_t builtins[] = {
{"Menu_Begin", bi_Menu_Begin, -1},
{"Menu_FadeScreen", bi_Menu_FadeScreen, -1},
{"Menu_Draw", bi_Menu_Draw, -1},
{"Menu_EnterHook", bi_Menu_EnterHook, -1},
{"Menu_LeaveHook", bi_Menu_LeaveHook, -1},
{"Menu_Pic", bi_Menu_Pic, -1},
{"Menu_SubPic", bi_Menu_SubPic, -1},
{"Menu_CenterPic", bi_Menu_CenterPic, -1},
{"Menu_CenterSubPic", bi_Menu_CenterSubPic, -1},
{"Menu_Item", bi_Menu_Item, -1},
{"Menu_Cursor", bi_Menu_Cursor, -1},
{"Menu_KeyEvent", bi_Menu_KeyEvent, -1},
{"Menu_End", bi_Menu_End, -1},
{"Menu_TopMenu", bi_Menu_TopMenu, -1},
{"Menu_SelectMenu", bi_Menu_SelectMenu, -1},
{"Menu_SetQuit", bi_Menu_SetQuit, -1},
{"Menu_Quit", bi_Menu_Quit, -1},
{"Menu_GetIndex", bi_Menu_GetIndex, -1},
{"Menu_Next", bi_Menu_Next, -1},
{"Menu_Prev", bi_Menu_Prev, -1},
{"Menu_Enter", bi_Menu_Enter, -1},
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{"Menu_Leave", bi_Menu_Leave, -1},
{0},
};
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void
Menu_Enter_f (void)
{
if (!Menu_KeyEvent(QFK_RETURN, '\0', true))
Menu_KeyEvent('y', 'y', true);
}
void
Menu_Leave_f (void)
{
Menu_Leave ();
}
void
Menu_Prev_f (void)
{
Menu_KeyEvent (QFK_UP, '\0', true);
}
void
Menu_Next_f (void)
{
Menu_KeyEvent (QFK_DOWN, '\0', true);
}
void
Menu_Init (void)
{
menu_pr_state.progs_name = "menu.dat";
menu_pr_state.allocate_progs_mem = menu_allocate_progs_mem;
menu_pr_state.free_progs_mem = menu_free_progs_mem;
menu_pr_state.load_file = menu_load_file;
menu_pr_state.resolve = menu_resolve_globals;
menu_hash = Hash_NewTable (61, menu_get_key, menu_free, 0);
PR_RegisterBuiltins (&menu_pr_state, builtins);
RUA_Init (&menu_pr_state, 1);
InputLine_Progs_Init (&menu_pr_state);
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Key_Progs_Init (&menu_pr_state);
GIB_Progs_Init (&menu_pr_state);
PR_Cmds_Init (&menu_pr_state);
R_Progs_Init (&menu_pr_state);
S_Progs_Init (&menu_pr_state);
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confirm_quit = Cvar_Get ("confirm_quit", "1", CVAR_ARCHIVE, NULL,
"confirm quit command");
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Cmd_AddCommand ("togglemenu", togglemenu_f,
"Toggle the display of the menu");
Cmd_RemoveCommand ("quit");
Cmd_AddCommand ("quit", quit_f, "Exit the program");
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Cmd_AddCommand ("Menu_Enter", Menu_Enter_f, "Do menu action/move up in the menu tree.");
Cmd_AddCommand ("Menu_Leave", Menu_Leave_f, "Move down in the menu tree.");
Cmd_AddCommand ("Menu_Prev", Menu_Prev_f, "Move cursor up.");
Cmd_AddCommand ("Menu_Next", Menu_Next_f, "Move cursor up.");
}
void
Menu_Load (void)
{
int size;
QFile *file;
Hash_FlushTable (menu_hash);
menu = 0;
top_menu = 0;
menu_pr_state.progs = 0;
if ((size = QFS_FOpenFile (menu_pr_state.progs_name, &file)) != -1) {
PR_LoadProgsFile (&menu_pr_state, file, size, 0, 1024 * 1024);
Qclose (file);
if (!PR_RunLoadFuncs (&menu_pr_state)) {
free (menu_pr_state.progs);
menu_pr_state.progs = 0;
}
}
if (!menu_pr_state.progs) {
// Not a fatal error, just means no menus
Con_SetOrMask (0x80);
Sys_Printf ("Menu_Load: could not load %s\n",
menu_pr_state.progs_name);
Con_SetOrMask (0x00);
return;
}
run_menu_pre ();
RUA_Cbuf_SetCbuf (&menu_pr_state, con_data.cbuf);
InputLine_Progs_SetDraw (&menu_pr_state, C_DrawInputLine);
PR_ExecuteProgram (&menu_pr_state, menu_init);
run_menu_post ();
}
void
Menu_Draw (view_t *view)
{
menu_pic_t *m_pic;
int i, x, y;
menu_item_t *item;
if (!menu)
return;
x = view->xabs;
y = view->yabs;
if (menu->fadescreen)
r_funcs->Draw_FadeScreen ();
*menu_pr_state.globals.time = *con_data.realtime;
if (menu->draw) {
int ret;
run_menu_pre ();
PR_RESET_PARAMS (&menu_pr_state);
P_INT (&menu_pr_state, 0) = x;
P_INT (&menu_pr_state, 1) = y;
PR_ExecuteProgram (&menu_pr_state, menu->draw);
ret = R_INT (&menu_pr_state);
run_menu_post ();
if (!ret)
return;
}
for (m_pic = menu->pics; m_pic; m_pic = m_pic->next) {
qpic_t *pic = r_funcs->Draw_CachePic (m_pic->name, 1);
if (!pic)
continue;
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if (m_pic->width > 0 && m_pic->height > 0)
r_funcs->Draw_SubPic (x + m_pic->x, y + m_pic->y, pic,
m_pic->srcx, m_pic->srcy,
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m_pic->width, m_pic->height);
else
r_funcs->Draw_Pic (x + m_pic->x, y + m_pic->y, pic);
}
for (i = 0; i < menu->num_items; i++) {
if (menu->items[i]->text) {
r_funcs->Draw_String (x + menu->items[i]->x + 8,
y + menu->items[i]->y,
menu->items[i]->text);
}
}
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if (!menu->items)
return;
item = menu->items[menu->cur_item];
if (menu->cursor) {
run_menu_pre ();
PR_RESET_PARAMS (&menu_pr_state);
P_INT (&menu_pr_state, 0) = x + item->x;
P_INT (&menu_pr_state, 1) = y + item->y;
PR_ExecuteProgram (&menu_pr_state, menu->cursor);
run_menu_post ();
} else {
r_funcs->Draw_Character (x + item->x, y + item->y,
12 + ((int) (*con_data.realtime * 4) & 1));
}
}
void
Menu_Draw_Hud (view_t *view)
{
run_menu_pre ();
*menu_pr_state.globals.time = *con_data.realtime;
PR_ExecuteProgram (&menu_pr_state, menu_draw_hud);
run_menu_post ();
}
int
Menu_KeyEvent (knum_t key, short unicode, qboolean down)
{
menu_item_t *item;
int ret;
if (!menu)
return 0;
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if (menu->keyevent) {
run_menu_pre ();
PR_RESET_PARAMS (&menu_pr_state);
P_INT (&menu_pr_state, 0) = key;
P_INT (&menu_pr_state, 1) = unicode;
P_INT (&menu_pr_state, 2) = down;
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PR_ExecuteProgram (&menu_pr_state, menu->keyevent);
ret = R_INT (&menu_pr_state);
run_menu_post ();
if (ret)
return 1;
} else if (menu->items && menu->items[menu->cur_item]->func
&& menu->items[menu->cur_item]->allkeys) {
run_menu_pre ();
PR_PushFrame (&menu_pr_state);
item = menu->items[menu->cur_item];
PR_RESET_PARAMS (&menu_pr_state);
P_STRING (&menu_pr_state, 0) = PR_SetTempString (&menu_pr_state,
item->text);
P_INT (&menu_pr_state, 1) = key;
PR_ExecuteProgram (&menu_pr_state, item->func);
PR_PopFrame (&menu_pr_state);
ret = R_INT (&menu_pr_state);
run_menu_post ();
if (ret)
return 1;
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}
if (!menu || !menu->items)
return 0;
switch (key) {
case QFK_DOWN:
case QFM_WHEEL_DOWN:
bi_Menu_Next (&menu_pr_state);
return 1;
case QFK_UP:
case QFM_WHEEL_UP:
bi_Menu_Prev (&menu_pr_state);
return 1;
case QFK_RETURN:
case QFM_BUTTON1:
bi_Menu_Enter (&menu_pr_state);
return 1;
default:
return 0;
}
}
void
Menu_Enter ()
{
if (!top_menu) {
Key_SetKeyDest (key_console);
return;
}
Key_SetKeyDest (key_menu);
menu = Hash_Find (menu_hash, top_menu);
if (menu && menu->enter_hook) {
run_menu_pre ();
PR_ExecuteProgram (&menu_pr_state, menu->enter_hook);
run_menu_post ();
}
}
void
Menu_Leave ()
{
if (menu) {
if (menu->leave_hook) {
run_menu_pre ();
PR_ExecuteProgram (&menu_pr_state, menu->leave_hook);
run_menu_post ();
}
menu = menu->parent;
if (!menu) {
if (con_data.force_commandline) {
Key_SetKeyDest (key_console);
} else {
Key_SetKeyDest (key_game);
}
}
}
r_data->vid->recalc_refdef = true;
}