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qpc/examples/emwin/demo_with_wm/table.c

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5.6.5
2016-06-10 21:50:26 -04:00
/*****************************************************************************
* Product: DPP example with emWin/uC/GUI, WITH Window Manager
* Last Updated for Version: 5.1.1
* Date of the Last Update: Nov 08, 2013
*
* Q u a n t u m L e a P s
* ---------------------------
* innovating embedded systems
*
* Copyright (C) 2002-2013 Quantum Leaps, LLC. All rights reserved.
*
* This program is open source 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.
*
* Alternatively, this program may be distributed and modified under the
* terms of Quantum Leaps commercial licenses, which expressly supersede
* the GNU General Public License and are specifically designed for
* licensees interested in retaining the proprietary status of their code.
*
* 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/>.
*
* Contact information:
* Quantum Leaps Web sites: http://www.quantum-leaps.com
* http://www.state-machine.com
* e-mail: info@quantum-leaps.com
*****************************************************************************/
#include "qp_port.h"
#include "dpp.h"
#include "bsp.h"
#include "GUI.h"
#include "WM.h" /* emWin Windows Manager */
#include "DIALOG.h"
#include "SIM.h"
Q_DEFINE_THIS_FILE
/* Active object class -----------------------------------------------------*/
typedef struct TableTag {
QActive super;
uint8_t fork[N_PHILO];
uint8_t isHungry[N_PHILO];
} Table;
static QState Table_initial(Table *me, QEvent const *e);
static QState Table_ready (Table *me, QEvent const *e);
static QState Table_serving(Table *me, QEvent const *e);
static QState Table_paused (Table *me, QEvent const *e);
#define RIGHT(n_) ((uint8_t)(((n_) + (N_PHILO - 1)) % N_PHILO))
#define LEFT(n_) ((uint8_t)(((n_) + 1) % N_PHILO))
enum ForkState { FREE, USED };
/* Local objects -----------------------------------------------------------*/
static Table l_table; /* the single instance of the Table active object */
#ifdef Q_SPY
enum QSUserRecords {
PHILO_STAT = QS_USER,
TABLE_STAT
};
static uint8_t const l_onDialogGUI = 0U;
#endif
/* Global-scope objects ----------------------------------------------------*/
QActive * const AO_Table = (QActive *)&l_table; /* "opaque" AO pointer */
/* GUI definition ==========================================================*/
static WM_HWIN l_hDlg;
static WM_CALLBACK *l_cb_WM_HBKWIN;
static const GUI_WIDGET_CREATE_INFO l_dialog[] = {
{ &FRAMEWIN_CreateIndirect, "Dining Philosopher Problem",
0, 30, 30, 260, 180, FRAMEWIN_CF_MOVEABLE },
{ &TEXT_CreateIndirect, "Philosopher 0",
GUI_ID_TEXT9, 50, 10, 0, 0, TEXT_CF_LEFT },
{ &TEXT_CreateIndirect, "Philosopher 1",
GUI_ID_TEXT9, 50, 30, 0, 0, TEXT_CF_LEFT },
{ &TEXT_CreateIndirect, "Philosopher 2",
GUI_ID_TEXT9, 50, 50, 0, 0, TEXT_CF_LEFT },
{ &TEXT_CreateIndirect, "Philosopher 3",
GUI_ID_TEXT9, 50, 70, 0, 0, TEXT_CF_LEFT },
{ &TEXT_CreateIndirect, "Philosopher 4",
GUI_ID_TEXT9, 50, 90, 0, 0, TEXT_CF_LEFT },
{ &TEXT_CreateIndirect, "Table",
GUI_ID_TEXT9, 50, 110, 0, 0, TEXT_CF_LEFT },
{ &TEXT_CreateIndirect, "thinking",
GUI_ID_TEXT0, 130, 10, 0, 0, TEXT_CF_LEFT },
{ &TEXT_CreateIndirect, "thinking",
GUI_ID_TEXT1, 130, 30, 0, 0, TEXT_CF_LEFT },
{ &TEXT_CreateIndirect, "thinking",
GUI_ID_TEXT2, 130, 50, 0, 0, TEXT_CF_LEFT },
{ &TEXT_CreateIndirect, "thinking",
GUI_ID_TEXT3, 130, 70, 0, 0, TEXT_CF_LEFT },
{ &TEXT_CreateIndirect, "thinking",
GUI_ID_TEXT4, 130, 90, 0, 0, TEXT_CF_LEFT },
{ &TEXT_CreateIndirect, "serving",
GUI_ID_TEXT5, 130, 110, 0, 0, TEXT_CF_LEFT },
{ &BUTTON_CreateIndirect,"PAUSE",
GUI_ID_BUTTON0, 160, 130, 80, 30 }
};
/*..........................................................................*/
static void onMainWndGUI(WM_MESSAGE* pMsg) {
switch (pMsg->MsgId) {
case WM_PAINT: {
GUI_SetBkColor(GUI_GRAY);
GUI_Clear();
GUI_SetColor(GUI_BLACK);
GUI_SetFont(&GUI_Font24_ASCII);
GUI_DispStringHCenterAt("Dining Philosophers - Demo", 160, 5);
break;
}
default: {
WM_DefaultProc(pMsg);
break;
}
}
}
/*..........................................................................*/
static void onDialogGUI(WM_MESSAGE * pMsg) {
switch (pMsg->MsgId) {
case WM_INIT_DIALOG: {
break;
}
case WM_NOTIFY_PARENT: {
switch (pMsg->Data.v) {
case WM_NOTIFICATION_RELEASED: { /* react only if released */
switch (WM_GetId(pMsg->hWinSrc)) {
case GUI_ID_BUTTON0: {
/* static PAUSE event for the Table AO */
static QEvent const pauseEvt = { PAUSE_SIG, 0 };
QACTIVE_POST(AO_Table, &pauseEvt, &l_onDialogGUI);
break;
}
}
break;
}
}
break;
}
default: {
WM_DefaultProc(pMsg);
break;
}
}
}
/*..........................................................................*/
static void displyPhilStat(uint8_t n, char const *stat) {
TEXT_SetText(WM_GetDialogItem(l_hDlg, GUI_ID_TEXT0 + n), stat);
WM_Exec(); /* update the screen and invoke WM callbacks */
QS_BEGIN(PHILO_STAT, AO_Philo[n]) /* application-specific record begin */
QS_U8(1, n); /* Philosopher number */
QS_STR(stat); /* Philosopher status */
QS_END()
}
/*..........................................................................*/
static void displyTableStat(char const *stat) {
TEXT_SetText(WM_GetDialogItem(l_hDlg, GUI_ID_TEXT5), stat);
WM_Exec(); /* update the screen and invoke WM callbacks */
QS_BEGIN(TABLE_STAT, AO_Table) /* application-specific record begin */
QS_STR(stat); /* Philosopher status */
QS_END()
}
/*..........................................................................*/
void Table_ctor(void) {
uint8_t n;
Table *me = &l_table;
QActive_ctor(&me->super, (QStateHandler)&Table_initial);
for (n = 0; n < N_PHILO; ++n) {
me->fork[n] = FREE;
me->isHungry[n] = 0;
}
}
/* Table HSM ===============================================================*/
QState Table_initial(Table *me, QEvent const *e) {
(void)e; /* suppress the compiler warning about unused parameter */
QS_OBJ_DICTIONARY(&l_table);
QS_FUN_DICTIONARY(&QHsm_top);
QS_FUN_DICTIONARY(&Table_initial);
QS_FUN_DICTIONARY(&Table_serving);
QS_SIG_DICTIONARY(DONE_SIG, 0); /* global signals */
QS_SIG_DICTIONARY(EAT_SIG, 0);
QS_SIG_DICTIONARY(PAUSE_SIG, 0);
QS_SIG_DICTIONARY(HUNGRY_SIG, me); /* signal just for Table */
GUI_Init(); /* initialize the embedded GUI */
QActive_subscribe((QActive *)me, DONE_SIG);
return Q_TRAN(&Table_ready);
}
/*..........................................................................*/
QState Table_ready(Table *me, QEvent const *e) {
switch (e->sig) {
case Q_ENTRY_SIG: {
l_cb_WM_HBKWIN = WM_SetCallback(WM_HBKWIN, &onMainWndGUI);
/* create the diaglog box and return right away... */
l_hDlg = GUI_CreateDialogBox(l_dialog, GUI_COUNTOF(l_dialog),
&onDialogGUI, 0, 0, 0);
return Q_HANDLED();
}
case Q_EXIT_SIG: {
GUI_EndDialog(l_hDlg, 0);
WM_SetCallback(WM_HBKWIN, l_cb_WM_HBKWIN);
return Q_HANDLED();
}
case Q_INIT_SIG: {
return Q_TRAN(&Table_serving);
}
case MOUSE_CHANGE_SIG: { /* mouse change (move or click) event */
GUI_PID_STATE mouse;
mouse.x = ((MouseEvt const *)e)->xPos;
mouse.y = ((MouseEvt const *)e)->yPos;
mouse.Pressed = ((MouseEvt const *)e)->buttonStates;
GUI_PID_StoreState(&mouse);/* update the state of the Mouse PID */
WM_Exec(); /* update the screen and invoke WM callbacks */
return Q_HANDLED();
}
/* ... hardkey events ... */
case KEY_LEFT_REL_SIG: { /* hardkey LEFT released */
WM_MoveWindow(l_hDlg, -5, 0);
WM_Exec(); /* update the screen and invoke WM callbacks */
return Q_HANDLED();
}
case KEY_RIGHT_REL_SIG: { /* hardkey RIGHT released */
WM_MoveWindow(l_hDlg, 5, 0);
WM_Exec(); /* update the screen and invoke WM callbacks */
return Q_HANDLED();
}
case KEY_DOWN_REL_SIG: { /* hardkey DOWN released */
WM_MoveWindow(l_hDlg, 0, 5);
WM_Exec(); /* update the screen and invoke WM callbacks */
return Q_HANDLED();
}
case KEY_UP_REL_SIG: { /* hardkey UP released */
WM_MoveWindow(l_hDlg, 0, -5);
WM_Exec(); /* update the screen and invoke WM callbacks */
return Q_HANDLED();
}
}
return Q_SUPER(&QHsm_top);
}
/*..........................................................................*/
QState Table_serving(Table *me, QEvent const *e) {
uint8_t n, m;
TableEvt *pe;
switch (e->sig) {
case Q_ENTRY_SIG: {
displyTableStat("serving");
for (n = 0; n < N_PHILO; ++n) { /* give permissions to eat... */
if (me->isHungry[n]
&& (me->fork[LEFT(n)] == FREE)
&& (me->fork[n] == FREE))
{
me->fork[LEFT(n)] = me->fork[n] = USED;
pe = Q_NEW(TableEvt, EAT_SIG);
pe->philoNum = n;
QF_PUBLISH((QEvent *)pe, me);
me->isHungry[n] = 0;
displyPhilStat(n, "eating ");
}
}
return Q_HANDLED();
}
case HUNGRY_SIG: {
n = ((TableEvt *)e)->philoNum;
Q_ASSERT(n < N_PHILO && !me->isHungry[n]);
displyPhilStat(n, "hungry ");
m = LEFT(n);
if (me->fork[m] == FREE && me->fork[n] == FREE) {
me->fork[m] = me->fork[n] = USED;
pe = Q_NEW(TableEvt, EAT_SIG);
pe->philoNum = n;
QF_PUBLISH((QEvent *)pe, me);
displyPhilStat(n, "eating ");
}
else {
me->isHungry[n] = 1;
}
return Q_HANDLED();
}
case DONE_SIG: {
n = ((TableEvt *)e)->philoNum;
Q_ASSERT(n < N_PHILO);
displyPhilStat(n, "thinking");
me->fork[LEFT(n)] = me->fork[n] = FREE;
m = RIGHT(n); /* check the right neighbor */
if (me->isHungry[m] && me->fork[m] == FREE) {
me->fork[n] = me->fork[m] = USED;
me->isHungry[m] = 0;
pe = Q_NEW(TableEvt, EAT_SIG);
pe->philoNum = m;
QF_PUBLISH((QEvent *)pe, me);
displyPhilStat(m, "eating ");
}
m = LEFT(n); /* check the left neighbor */
n = LEFT(m);
if (me->isHungry[m] && me->fork[n] == FREE) {
me->fork[m] = me->fork[n] = USED;
me->isHungry[m] = 0;
pe = Q_NEW(TableEvt, EAT_SIG);
pe->philoNum = m;
QF_PUBLISH((QEvent *)pe, me);
displyPhilStat(m, "eating ");
}
return Q_HANDLED();
}
case PAUSE_SIG: /* "Toggle" button pressed */
case KEY_CENTER_PRESS_SIG: { /* hardkey CENTER pressed */
return Q_TRAN(&Table_paused);
}
}
return Q_SUPER(&Table_ready);
}
/*..........................................................................*/
QState Table_paused(Table *me, QEvent const *e) {
uint8_t n;
switch (e->sig) {
case Q_ENTRY_SIG: {
displyTableStat("paused");
return Q_HANDLED();
}
case HUNGRY_SIG: {
n = ((TableEvt *)e)->philoNum;
Q_ASSERT(n < N_PHILO && !me->isHungry[n]);
displyPhilStat(n, "hungry ");
me->isHungry[n] = 1;
return Q_HANDLED();
}
case DONE_SIG: {
n = ((TableEvt *)e)->philoNum;
Q_ASSERT(n < N_PHILO);
displyPhilStat(n, "thinking");
me->fork[LEFT(n)] = me->fork[n] = FREE;
return Q_HANDLED();
}
case PAUSE_SIG: /* "Toggle" button pressed */
case KEY_CENTER_REL_SIG: { /* hardkey CENTER released */
return Q_TRAN(&Table_serving);
}
}
return Q_SUPER(&Table_ready);
}
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