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/*****************************************************************************
* *
* OpenNI 2.x Alpha *
* Copyright (C) 2012 PrimeSense Ltd. *
* *
* This file is part of OpenNI. *
* *
* Licensed under the Apache License, Version 2.0 (the "License"); *
* you may not use this file except in compliance with the License. *
* You may obtain a copy of the License at *
* *
* http://www.apache.org/licenses/LICENSE-2.0 *
* *
* Unless required by applicable law or agreed to in writing, software *
* distributed under the License is distributed on an "AS IS" BASIS, *
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. *
* See the License for the specific language governing permissions and *
* limitations under the License. *
* *
*****************************************************************************/
// --------------------------------
// Includes
// --------------------------------
#include <XnPlatform.h>
#include "Menu.h"
#if (XN_PLATFORM == XN_PLATFORM_MACOSX)
#include <GLUT/glut.h>
#else
#include <GL/glut.h>
#endif
#include <stdio.h>
#include <string.h>
// --------------------------------
// Defines
// --------------------------------
#define XN_MAX_MENU_ENTRIES 300
#define XN_MAX_MENU_ENTRY_NAME_LEN 70
#define XN_MAX_MENU_DEPTH 20
// --------------------------------
// Types
// --------------------------------
struct XnMenuBuilder
{
int aMenuPath[XN_MAX_MENU_DEPTH];
int nMenuPathIndex;
int nCurrMenuItem;
} g_MenuBuilder;
typedef struct XnMenuEntry
{
char csName[XN_MAX_MENU_ENTRY_NAME_LEN];
ActionFunc pCallbackFunc;
int nCallbackArg;
} XnMenuEntry;
// --------------------------------
// Global Variables
// --------------------------------
/* Holds a list of all menu entries and their callbacks. */
XnMenuEntry g_MenuEntries[XN_MAX_MENU_ENTRIES];
// --------------------------------
// Code
// --------------------------------
void mainMenuCallback(int nMenuID)
{
g_MenuEntries[nMenuID].pCallbackFunc(g_MenuEntries[nMenuID].nCallbackArg);
}
void startMenu()
{
g_MenuBuilder.aMenuPath[0] = glutCreateMenu(mainMenuCallback);
g_MenuBuilder.nMenuPathIndex = 0;
g_MenuBuilder.nCurrMenuItem = 0;
}
void startSubMenu(const char* csName)
{
int nNewMenuID = glutCreateMenu(mainMenuCallback);
glutSetMenu(g_MenuBuilder.aMenuPath[g_MenuBuilder.nMenuPathIndex]);
glutAddSubMenu(csName, nNewMenuID);
(g_MenuBuilder.nMenuPathIndex)++;
g_MenuBuilder.aMenuPath[g_MenuBuilder.nMenuPathIndex] = nNewMenuID;
glutSetMenu(g_MenuBuilder.aMenuPath[g_MenuBuilder.nMenuPathIndex]);
}
void createMenuEntry(const char* csName, ActionFunc func, int arg)
{
strcpy(g_MenuEntries[g_MenuBuilder.nCurrMenuItem].csName, csName);
int key = getRegisteredSpecialKey(func, arg);
if (key != 0)
{
switch(key)
{
case GLUT_KEY_LEFT:
strcat(g_MenuEntries[g_MenuBuilder.nCurrMenuItem].csName + strlen(csName), " [Left]");
break;
case GLUT_KEY_RIGHT:
strcat(g_MenuEntries[g_MenuBuilder.nCurrMenuItem].csName + strlen(csName), " [Right]");
break;
case GLUT_KEY_UP:
strcat(g_MenuEntries[g_MenuBuilder.nCurrMenuItem].csName + strlen(csName), " [Up]");
break;
case GLUT_KEY_DOWN:
strcat(g_MenuEntries[g_MenuBuilder.nCurrMenuItem].csName + strlen(csName), " [Down]");
break;
default:
break;
}
}
else
{
key = (int)getRegisteredKey(func, arg);
if (key != 0)
{
if (key == 27)
strcat(g_MenuEntries[g_MenuBuilder.nCurrMenuItem].csName + strlen(csName), " [Esc]");
else if (key == ' ')
strcat(g_MenuEntries[g_MenuBuilder.nCurrMenuItem].csName + strlen(csName), " [Space]");
else
sprintf(g_MenuEntries[g_MenuBuilder.nCurrMenuItem].csName + strlen(csName), " [ %c ]", (char)key);
}
}
g_MenuEntries[g_MenuBuilder.nCurrMenuItem].pCallbackFunc = func;
g_MenuEntries[g_MenuBuilder.nCurrMenuItem].nCallbackArg = arg;
glutAddMenuEntry(g_MenuEntries[g_MenuBuilder.nCurrMenuItem].csName, g_MenuBuilder.nCurrMenuItem);
(g_MenuBuilder.nCurrMenuItem)++;
}
void endSubMenu()
{
(g_MenuBuilder.nMenuPathIndex)--;
int nParentMenuID = g_MenuBuilder.aMenuPath[g_MenuBuilder.nMenuPathIndex];
glutSetMenu(nParentMenuID);
}
void endMenu()
{
glutSetMenu(g_MenuBuilder.aMenuPath[0]);
glutAttachMenu(GLUT_RIGHT_BUTTON);
}
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