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MiniGUI/src/kernel/zorder.c

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///////////////////////////////////////////////////////////////////////////////
//
// IMPORTANT NOTICE
//
// The following open source license statement does not apply to any
// entity in the Exception List published by FMSoft.
//
// For more information, please visit:
//
// https://www.fmsoft.cn/exception-list
//
//////////////////////////////////////////////////////////////////////////////
/*
* This file is part of MiniGUI, a mature cross-platform windowing
* and Graphics User Interface (GUI) support system for embedded systems
* and smart IoT devices.
*
* Copyright (C) 2002~2020, Beijing FMSoft Technologies Co., Ltd.
* Copyright (C) 1998~2002, WEI Yongming
*
* 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 3 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, see <http://www.gnu.org/licenses/>.
*
* Or,
*
* As this program is a library, any link to this program must follow
* GNU General Public License version 3 (GPLv3). If you cannot accept
* GPLv3, you need to be licensed from FMSoft.
*
* If you have got a commercial license of this program, please use it
* under the terms and conditions of the commercial license.
*
* For more information about the commercial license, please refer to
* <http://www.minigui.com/blog/minigui-licensing-policy/>.
*/
/*
** zorder.c: zorder operation set.
*/
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <sys/types.h>
#include <signal.h>
#include <math.h>
#include "common.h"
#include "minigui.h"
#include "gdi.h"
#include "window.h"
#include "cliprect.h"
#include "internals.h"
#include "ctrlclass.h"
#include "license.h"
#ifdef _MG_ENABLE_LICENSE
# include "../sysres/license/c_files/03_progressbar.dat.c"
#endif
#ifdef _MGRM_PROCESSES
# include "ourhdr.h"
# include "sockio.h"
# include "client.h"
# include "server.h"
# include "sharedres.h"
# include "drawsemop.h"
#endif
#include "misc.h"
#ifdef _MGRM_PROCESSES
#define SHM_PARAM 0644
inline static key_t get_layer_shm_key (void)
{
static BYTE last_layer_key = 0x10;
key_t key;
if (last_layer_key == 0xFF)
return -1;
key = (key_t)(IPC_KEY_BASE + last_layer_key);
last_layer_key ++;
return key;
}
#endif /* defined _MGRM_PROCESSES */
int __kernel_alloc_z_order_info (int nr_topmosts, int nr_normals, BOOL with_maskrc_heap)
{
#ifdef _MGRM_PROCESSES
int size_usage_bmp = SIZE_USAGE_BMP (SHAREDRES_NR_GLOBALS,
nr_topmosts, nr_normals);
key_t shm_key;
int zorder_shmid;
if ((shm_key = get_layer_shm_key ()) == -1) {
return -1;
}
zorder_shmid = shmget (shm_key,
sizeof (ZORDERINFO) +
size_usage_bmp +
sizeof (ZORDERNODE) *
(DEF_NR_POPUPMENUS + /* for the popup menus */
DEF_NR_TOOLTIPS + /* for the tooltip ones */
SHAREDRES_NR_GLOBALS + /* for the global ones */
DEF_NR_SCREENLOCKS + /* for the screenlock ones */
DEF_NR_DOCKERS + /* for the docker ones */
nr_topmosts + /* for the higher windows */
nr_normals + /* for the normal windows */
DEF_NR_LAUNCHERS + /* for the launcher ones */
NR_FIXED_ZNODES) + /* for the fixed znodes */
with_maskrc_heap ? (SIZE_MASKRECT_USAGE_BMP +
sizeof (MASKRECT) * DEF_NR_MASKRECTS) : 0,
SHM_PARAM | IPC_CREAT | IPC_EXCL);
return zorder_shmid;
#else /* defined _MGRM_PROCESSES */
int size_usage_bmp = SIZE_USAGE_BMP (DEF_NR_GLOBALS,
nr_topmosts, nr_normals);
ZORDERNODE* znodes;
void* maskrect_usage_bmp;
__mg_zorder_info = (PZORDERINFO) malloc (
sizeof (ZORDERINFO) +
size_usage_bmp +
sizeof (ZORDERNODE) *
(DEF_NR_POPUPMENUS + /* for the popup menus */
DEF_NR_TOOLTIPS + /* for the tooltip ones */
DEF_NR_GLOBALS + /* for global windows */
DEF_NR_SCREENLOCKS + /* for the screenlock ones */
DEF_NR_DOCKERS + /* for the docker ones */
nr_topmosts + /* for the topmost windows */
nr_normals + /* for the normal windows */
DEF_NR_LAUNCHERS + /* for the launcher ones */
NR_FIXED_ZNODES) + /* for the fixed znodes */
SIZE_MASKRECT_USAGE_BMP +
sizeof (MASKRECT) * DEF_NR_MASKRECTS);
if (!__mg_zorder_info) {
_MG_PRINTF ("KERNEL>ZOrder: calloc zorderinfo failure. \n");
return -1;
}
__mg_zorder_info->size_usage_bmp = size_usage_bmp;
__mg_zorder_info->size_maskrect_usage_bmp = SIZE_MASKRECT_USAGE_BMP;
__mg_zorder_info->max_nr_popupmenus = DEF_NR_POPUPMENUS;
__mg_zorder_info->max_nr_tooltips = DEF_NR_TOOLTIPS;
__mg_zorder_info->max_nr_globals = DEF_NR_GLOBALS;
__mg_zorder_info->max_nr_screenlocks = DEF_NR_SCREENLOCKS;
__mg_zorder_info->max_nr_dockers = DEF_NR_DOCKERS;
__mg_zorder_info->max_nr_topmosts = nr_topmosts;
__mg_zorder_info->max_nr_normals = nr_normals;
__mg_zorder_info->max_nr_launchers = DEF_NR_LAUNCHERS;
__mg_zorder_info->nr_popupmenus = 0;
__mg_zorder_info->nr_tooltips = 0;
__mg_zorder_info->nr_globals = 0;
__mg_zorder_info->nr_screenlocks = 0;
__mg_zorder_info->nr_dockers = 0;
__mg_zorder_info->nr_topmosts = 0;
__mg_zorder_info->nr_normals = 0;
__mg_zorder_info->nr_launchers = 0;
__mg_zorder_info->first_tooltip = 0;
__mg_zorder_info->first_global = 0;
__mg_zorder_info->first_screenlock = 0;
__mg_zorder_info->first_docker = 0;
__mg_zorder_info->first_topmost = 0;
__mg_zorder_info->first_normal = 0;
__mg_zorder_info->first_launcher = 0;
__mg_zorder_info->active_win = 0;
__mg_zorder_info->cli_trackmenu = -1;
__mg_zorder_info->ptmi_in_cli = (HWND)-1;
/* Set zorder node usage map. */
memset (__mg_zorder_info + 1, 0xFF, size_usage_bmp);
/* Set zorder mask rect usage map. */
maskrect_usage_bmp = GET_MASKRECT_USAGEBMP(__mg_zorder_info);
memset (maskrect_usage_bmp, 0xFF,
__mg_zorder_info->size_maskrect_usage_bmp);
/* init z-order node for desktop */
znodes = GET_ZORDERNODE(__mg_zorder_info);
znodes [0].flags = ZOF_TYPE_DESKTOP | ZOF_VISIBLE;
znodes [0].rc = g_rcScr;
znodes [0].age = 0;
znodes [0].cli = 0;
znodes [0].hwnd = HWND_DESKTOP;
znodes [0].next = 0;
znodes [0].prev = 0;
znodes [0].idx_mask_rect = 0;
__mg_slot_set_use ((unsigned char*)(__mg_zorder_info + 1), 0);
__mg_slot_set_use ((unsigned char*)(maskrect_usage_bmp), 0);
__mg_def_zorder_info = __mg_zorder_info;
#if 0 /* deprecated code */
/* Since 5.0.0; allocate znodes for other fixed main windows */
{
int i;
static int fixed_ztypes [] = { ZNIT_TOOLTIP };
for (i = 0; i < TABLESIZE (fixed_ztypes); i++) {
znodes [i + ZNIDX_FIRST].flags = fixed_ztypes [i];
#ifndef _MGSCHEMA_COMPOSITING
znodes [i + ZNIDX_FIRST].age = 0;
znodes [i + ZNIDX_FIRST].dirty_rc.left = 0;
znodes [i + ZNIDX_FIRST].dirty_rc.top = 0;
znodes [i + ZNIDX_FIRST].dirty_rc.right = 0;
znodes [i + ZNIDX_FIRST].dirty_rc.bottom = 0;
#endif
znodes [i + ZNIDX_FIRST].cli = -1;
znodes [i + ZNIDX_FIRST].hwnd = HWND_NULL;
znodes [i + ZNIDX_FIRST].next = 0;
znodes [i + ZNIDX_FIRST].prev = 0;
znodes [i + ZNIDX_FIRST].idx_mask_rect = 0;
znodes [i + ZNIDX_FIRST].priv_data = NULL;
SetRectEmpty (&znodes [i + ZNIDX_FIRST].rc);
__mg_slot_set_use ((unsigned char*)(__mg_zorder_info + 1),
i + ZNIDX_FIRST);
}
}
#endif /* deprecated code */
#ifdef _MGRM_THREADS
# ifdef __ZI_USE_RWLOCK
pthread_rwlock_init(&__mg_zorder_info->rwlock, NULL);
# else
do {
int ret;
pthread_mutexattr_t my_attr;
ret = pthread_mutexattr_init(&my_attr);
assert(ret == 0);
ret = pthread_mutexattr_settype(&my_attr, PTHREAD_MUTEX_RECURSIVE);
assert(ret == 0);
pthread_mutex_init(&__mg_zorder_info->mutex, &my_attr);
ret = pthread_mutexattr_destroy(&my_attr);
assert(ret == 0);
(void)ret;
} while (0);
# endif
#endif
return 0;
#endif
}
void __kernel_free_z_order_info (ZORDERINFO* zi)
{
#if defined(_MGRM_PROCESSES)
if (shmdt (zi) < 0)
perror ("Detaches shared zorder nodes");
#else
#ifdef _MGRM_THREADS
# ifdef __ZI_USE_RWLOCK
pthread_rwlock_destroy(&zi->rwlock);
# else
pthread_mutex_destroy(&zi->mutex);
# endif
#endif
free (zi);
__mg_zorder_info = NULL;
__mg_def_zorder_info = NULL;
#endif
}
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