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-rw-r--r--src/glut/glx/glut_menu2.c185
1 files changed, 185 insertions, 0 deletions
diff --git a/src/glut/glx/glut_menu2.c b/src/glut/glx/glut_menu2.c
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index 0000000000..93119b540e
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+++ b/src/glut/glx/glut_menu2.c
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+
+/* Copyright (c) Mark J. Kilgard, 1994, 1997. */
+
+/* This program is freely distributable without licensing fees
+ and is provided without guarantee or warrantee expressed or
+ implied. This program is -not- in the public domain. */
+
+/* glut_menu2.c implements the little used GLUT menu calls in
+ a distinct file from glut_menu.c for slim static linking. */
+
+/* The Win32 GLUT file win32_menu.c completely re-implements all
+ the menuing functionality implemented. This file is used only by
+ the X Window System version of GLUT. */
+
+#include <stdlib.h>
+#include <string.h>
+#include <stdio.h>
+#include <errno.h>
+#include <assert.h>
+
+#include <X11/Xlib.h>
+
+#include "glutint.h"
+#include "layerutil.h"
+
+/* CENTRY */
+/* DEPRICATED, use glutMenuStatusFunc instead. */
+void APIENTRY
+glutMenuStateFunc(GLUTmenuStateCB menuStateFunc)
+{
+ __glutMenuStatusFunc = (GLUTmenuStatusCB) menuStateFunc;
+}
+
+void APIENTRY
+glutMenuStatusFunc(GLUTmenuStatusCB menuStatusFunc)
+{
+ __glutMenuStatusFunc = menuStatusFunc;
+}
+
+void APIENTRY
+glutDestroyMenu(int menunum)
+{
+ GLUTmenu *menu = __glutGetMenuByNum(menunum);
+ GLUTmenuItem *item, *next;
+
+ if (__glutMappedMenu)
+ __glutMenuModificationError();
+ assert(menu->id == menunum - 1);
+ XDestroySubwindows(__glutDisplay, menu->win);
+ XDestroyWindow(__glutDisplay, menu->win);
+ __glutMenuList[menunum - 1] = NULL;
+ /* free all menu entries */
+ item = menu->list;
+ while (item) {
+ assert(item->menu == menu);
+ next = item->next;
+ free(item->label);
+ free(item);
+ item = next;
+ }
+ if (__glutCurrentMenu == menu) {
+ __glutCurrentMenu = NULL;
+ }
+ free(menu);
+}
+
+void APIENTRY
+glutChangeToMenuEntry(int num, const char *label, int value)
+{
+ GLUTmenuItem *item;
+ int i;
+
+ if (__glutMappedMenu)
+ __glutMenuModificationError();
+ i = __glutCurrentMenu->num;
+ item = __glutCurrentMenu->list;
+ while (item) {
+ if (i == num) {
+ if (item->isTrigger) {
+ /* If changing a submenu trigger to a menu entry, we
+ need to account for submenus. */
+ item->menu->submenus--;
+ }
+ free(item->label);
+ __glutSetMenuItem(item, label, value, False);
+ return;
+ }
+ i--;
+ item = item->next;
+ }
+ __glutWarning("Current menu has no %d item.", num);
+}
+
+void APIENTRY
+glutChangeToSubMenu(int num, const char *label, int menu)
+{
+ GLUTmenuItem *item;
+ int i;
+
+ if (__glutMappedMenu)
+ __glutMenuModificationError();
+ i = __glutCurrentMenu->num;
+ item = __glutCurrentMenu->list;
+ while (item) {
+ if (i == num) {
+ if (!item->isTrigger) {
+ /* If changing a menu entry to as submenu trigger, we
+ need to account for submenus. */
+ item->menu->submenus++;
+ }
+ free(item->label);
+ __glutSetMenuItem(item, label, /* base 0 */ menu - 1, True);
+ return;
+ }
+ i--;
+ item = item->next;
+ }
+ __glutWarning("Current menu has no %d item.", num);
+}
+
+void APIENTRY
+glutRemoveMenuItem(int num)
+{
+ GLUTmenuItem *item, **prev, *remaining;
+ int pixwidth, i;
+
+ if (__glutMappedMenu)
+ __glutMenuModificationError();
+ i = __glutCurrentMenu->num;
+ prev = &__glutCurrentMenu->list;
+ item = __glutCurrentMenu->list;
+ /* If menu item is removed, the menu's pixwidth may need to
+ be recomputed. */
+ pixwidth = 1;
+ while (item) {
+ if (i == num) {
+ /* If this menu item's pixwidth is as wide as the menu's
+ pixwidth, removing this menu item will necessitate
+ shrinking the menu's pixwidth. */
+ if (item->pixwidth >= __glutCurrentMenu->pixwidth) {
+ /* Continue recalculating menu pixwidth, first skipping
+ the removed item. */
+ remaining = item->next;
+ while (remaining) {
+ if (remaining->pixwidth > pixwidth) {
+ pixwidth = remaining->pixwidth;
+ }
+ remaining = remaining->next;
+ }
+ __glutCurrentMenu->pixwidth = pixwidth;
+ }
+ __glutCurrentMenu->num--;
+ __glutCurrentMenu->managed = False;
+
+ /* Patch up menu's item list. */
+ *prev = item->next;
+
+ free(item->label);
+ free(item);
+ return;
+ }
+ if (item->pixwidth > pixwidth) {
+ pixwidth = item->pixwidth;
+ }
+ i--;
+ prev = &item->next;
+ item = item->next;
+ }
+ __glutWarning("Current menu has no %d item.", num);
+}
+
+void APIENTRY
+glutDetachMenu(int button)
+{
+ if (__glutMappedMenu)
+ __glutMenuModificationError();
+ if (__glutCurrentWindow->menu[button] > 0) {
+ __glutCurrentWindow->buttonUses--;
+ __glutChangeWindowEventMask(ButtonPressMask | ButtonReleaseMask,
+ __glutCurrentWindow->buttonUses > 0);
+ __glutCurrentWindow->menu[button] = 0;
+ }
+}
+
+/* ENDCENTRY */