/*** $Id: mginit.c,v 1.34.6.4 2006/06/16 01:15:49 xwyan Exp $**** The mginit program of MiniGUI Demostration Envirionment.**** Copyright (C) 2001, 2002 Wei Yongming.** Copyright (C) 2003 ~ 2006 Feynman Software.**** Create date: 2001/09/05*//***  This source 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 software 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 library; if not, write to the Free**  Software Foundation, Inc., 59 Temple Place - Suite 330, Boston,**  MA 02111-1307, USA*/#include <stdio.h>#include <stdlib.h>#include <string.h>#include <unistd.h>#include <signal.h>#include <time.h>#include <sys/types.h>#include <sys/wait.h>#include <minigui/common.h>#include <minigui/minigui.h>#include <minigui/gdi.h>#include <minigui/window.h>#include <minigui/control.h>#include <minigui/mgext.h>#include <minigui/fixedmath.h>#ifndef _LITE_VERSION    #error "*******************************************************************"    #error "**** Your MiniGUI is configured as MiniGUI-Threads.            ****"    #error "**** This program is a server of MiniGUI-Lite,                 ****"    #error "****   it can only run on MiniGUI-Lite,                        ****"    #error "****   not on MiniGUI-Threads.                                 ****"    #error "**** If you want to configure MiniGUI as MiniGUI-Lite,         ****"    #error "****   please run `./configure --enable-lite'                  ****"    #error "****   when configuring MiniGUI                                ****"    #error "****   and build and reinstall MiniGUI.                        ****"    #error "**** Note that this is not a fatal error.                      ****"    #error "*******************************************************************"#else#include "taskbar.h"static HWND hTaskBar;static void AboutMiniGUI (void){    char buff [1024];    sprintf (buff,             "MiniGUI version %d.%d.%d.\n"            "Copyright (C) 2002 ~ 2006 Feynman Software.\n"            "Copyright (C) 1998 ~ 2002 Wei Yongming.\n"            "All right reserved.\n\n"            "MiniGUI is \"a cross-operating-system graphics user interface "            "support system for embedded devices\", and is \"an embedded "            "graphics middleware\". It aims to provide a compact, fast, "            "stable, lightweight, and cross-OS GUI support system, which "            "is especially fit for real-time embedded systems based-on "            "Linux/uClinux, eCos, uC/OS-II, and other traditional RTOSes, "            "such as VxWorks, ThreadX, and Nucleus.\n\n"            "Please visit\n\n"            "http://www.minigui.org\n"            "http://www.minigui.com\n\n"            "for more information.",            MINIGUI_MAJOR_VERSION,             MINIGUI_MINOR_VERSION,             MINIGUI_MICRO_VERSION);    MessageBox (HWND_DESKTOP, buff,             "About MiniGUI!", MB_OK | MB_ICONINFORMATION);}static void AboutMDE (void){    char buff [1024];    sprintf (buff,             "MDE version %d.%d.%d.\n"            "Copyright (C) 2002 ~ 2006 Feynman Software.\n"            "Copyright (C) 2001 ~ 2002 Wei Yongming.\n\n"            "MDE (MiniGUI Demostration Envirionment) is a "            "comprehensive demo system for MiniGUI Ver %d.%d.%d. \n\n"            "It creates a task bar for you, and you can launch applications "            "from the bar, and switch among different layers by click "            "the layer-box on the bar.\n\n"            "MDE is free software, covered by the GNU General Public License, "            "and you are welcome to change it and/or distribute copies of it "            "under certain conditions. Please see the file COPYING to know "            "the details.\n\n"            "There is absolutely no warranty for MDE.",            MINIGUI_MAJOR_VERSION,             MINIGUI_MINOR_VERSION,             MINIGUI_MICRO_VERSION,            MINIGUI_MAJOR_VERSION,             MINIGUI_MINOR_VERSION,             MINIGUI_MICRO_VERSION);    MessageBox (HWND_DESKTOP, buff,            "About MDE!", MB_OK | MB_ICONINFORMATION);}static void Usage (void){    MessageBox (HWND_DESKTOP,             "Please start 'mginit' from the directory in which it located! "            "Do not change to other directory to run it.\n\n"            "Thanks a lot.",            "Usage of MDE!",            MB_OK | MB_ICONEXCLAMATION);}static const char* new_del_client_info [] ={    NULL,    "New comming in client: %s\n",    "Disconnecting client: %s\n"};static void on_child_exit(int signal){    wait(NULL);}static void on_new_del_client (int op, int cli){    static int nr_clients = 0;    MG_Client* client = mgClients + cli;    if (op > 0 && op <= LCO_DEL_CLIENT)        printf (new_del_client_info [op], client?client->name:"NULL");    if (op == LCO_NEW_CLIENT) {        nr_clients ++;    }    else if (op == LCO_DEL_CLIENT) {        nr_clients --;        if (nr_clients == 0) {#if 0            SendMessage (hTaskBar, MSG_CLOSE, 0, 0);#else            printf ("There is no any client.\n");#endif        }        else if (nr_clients < 0) {            printf ("Serious error: nr_clients less than zero.\n");        }    }    else        printf ("Serious error: incorrect operations.\n");}static const char* change_layer_info [] ={        NULL,        "New layer created: %s; client: %s\n",        "Layer deleted: %s; client: %s\n",        "New client joined layer: (%s, %s)\n",        "Remove client from layer: (%s, %s)\n",        "Change topmost layer to %s; client: %s\n",        "Change active client: (%s, %s)\n",};static void adjust_boxes (int width, MG_Layer* layer){    int left = _LEFT_BOXES;    MG_Layer* cur_layer = mgLayers;    while (cur_layer) {        if (cur_layer != layer) {            MoveWindow ((HWND)cur_layer->dwAddData, left, _MARGIN,                            width, _HEIGHT_CTRL, TRUE);            left += width;        }        cur_layer = cur_layer->next;    }}static void on_change_topmost (MG_Layer* layer){    MG_Layer* cur_layer = mgLayers;    if (layer)        SendMessage ((HWND)layer->dwAddData, BM_SETCHECK, BST_CHECKED, 0);    while (cur_layer) {        if (cur_layer != layer) {            SendMessage ((HWND)cur_layer->dwAddData, BM_SETCHECK, 0, 0);        }        cur_layer = cur_layer->next;    }}static void on_change_layer (int op, MG_Layer* layer, MG_Client* client){    static int nr_boxes = 0;    static int box_width = _MAX_WIDTH_LAYER_BOX;    int new_width;    if (op > 0 && op <= LCO_ACTIVE_CHANGED)        printf (change_layer_info [op], layer?layer->name:"NULL",                         client?client->name:"NULL");    switch (op) {    case LCO_NEW_LAYER:        nr_boxes ++;        if (box_width * nr_boxes > _WIDTH_BOXES) {            new_width = _WIDTH_BOXES / nr_boxes;            if (new_width < _MIN_WIDTH_LAYER_BOX) {                new_width = _MIN_WIDTH_LAYER_BOX;            }            if (new_width != box_width) {                adjust_boxes (new_width, layer);                box_width = new_width;            }        }        layer->dwAddData = (DWORD)CreateWindow (CTRL_BUTTON, layer->name,                  WS_CHILD | WS_VISIBLE | BS_CHECKBOX | BS_PUSHLIKE | BS_CENTER,                  _ID_LAYER_BOX,                  _LEFT_BOXES + box_width * (nr_boxes - 1), _MARGIN,                  box_width, _HEIGHT_CTRL, hTaskBar, (DWORD)layer);        break;    case LCO_DEL_LAYER:        DestroyWindow ((HWND)(layer->dwAddData));        layer->dwAddData = 0;        nr_boxes --;         if (box_width * nr_boxes < _WIDTH_BOXES) {            if (nr_boxes != 0)                new_width = _WIDTH_BOXES / nr_boxes;            else                new_width = _MAX_WIDTH_LAYER_BOX;            if (new_width > _MAX_WIDTH_LAYER_BOX)                new_width = _MAX_WIDTH_LAYER_BOX;            adjust_boxes (new_width, layer);            box_width = new_width;        }        break;    case LCO_JOIN_CLIENT:        break;    case LCO_REMOVE_CLIENT:        break;    case LCO_TOPMOST_CHANGED:        on_change_topmost (layer);        break;    case LCO_ACTIVE_CHANGED:        break;    default:        printf ("Serious error: incorrect operations.\n");    }}static void child_wait (int sig){    int pid;    int status;    while ((pid = waitpid (-1, &status, WNOHANG)) > 0) {        if (WIFEXITED (status))            printf ("--pid=%d--status=%x--rc=%d---\n",                             pid, status, WEXITSTATUS(status));        else if (WIFSIGNALED(status))            printf ("--pid=%d--signal=%d--\n", pid, WTERMSIG (status));    }}int MiniGUIMain (int args, const char* arg[]){    pid_t pid_desktop;    struct sigaction siga;    int status;    MSG msg;    siga.sa_handler = child_wait;    siga.sa_flags  = 0;    memset (&siga.sa_mask, 0, sizeof(sigset_t));    signal(SIGCHLD, on_child_exit);    OnNewDelClient = on_new_del_client;    OnChangeLayer = on_change_layer;#if _MINIGUI_VERSION_CODE < _VERSION_CODE (1, 3, 0)    if (!ServerStartup ()) {        fprintf (stderr,                  "Can not start the server of MiniGUI-Lite: mginit.\n");        return 1;    }#endif    if (SetDesktopRect (0, g_rcScr.bottom - HEIGHT_TASKBAR - HEIGHT_IMEWIN,                            g_rcScr.right, g_rcScr.bottom) == 0) {        fprintf (stderr, "Empty desktop rect.\n");        return 1;    }    if (!InitMiniGUIExt ()) {        fprintf (stderr, "Can not init mgext library.\n");        return 1;    }    AboutMiniGUI ();    AboutMDE ();    if ((hTaskBar = create_task_bar ()) == HWND_INVALID) {        fprintf (stderr, "Can not create task bar.\n");        return 2;    }    pid_desktop = exec_app (app_info.autostart);    if (pid_desktop == 0 || waitpid (pid_desktop, &status, WNOHANG) > 0) {        fprintf (stderr, "Desktop already have terminated.\n");        Usage ();        return 1;    }    sigaction (SIGCHLD, &siga, NULL);    while (GetMessage (&msg, hTaskBar)) {        DispatchMessage (&msg);    }    MiniGUIExtCleanUp ();    return 0;}#endif