/*---------------------------------------------------------------------------*
* Routine: ChoicesUpdate
*---------------------------------------------------------------------------*
* Description:
* Wait for a touchscreen event or timeout. Check the event and change
* the state of the choices.
* Inputs:
* SWIM_WINDOW_T *aWin -- Window to draw within
* const T_choice *aChoices -- Choices to use
* T_uezQueue aTouchQueue -- Touchscreen queue
* TUInt32 aTimeout -- Time to wait for touchscreen event
* Outputs:
* const T_choice * -- Last choice selected or 0 for none.
*---------------------------------------------------------------------------*/
const T_choice *ChoicesUpdate(
SWIM_WINDOW_T *aWin,
const T_choice *aChoices,
T_uezQueue aInputEventQueue,
TUInt32 aTimeout)
{
T_uezInputEvent inputEvent;
if (UEZQueueReceive(aInputEventQueue, &inputEvent, aTimeout) == UEZ_ERROR_NONE) {
return ChoicesUpdateByReading(aWin, aChoices, &inputEvent);
} else {
return 0;
}
}
/*---------------------------------------------------------------------------*
* Routine: DrawMode
*---------------------------------------------------------------------------*
* Description:
* Put the processor in the draw mode 'application' or 'demo'.
* Buttons are shown to load, save, exit, and change the current color.
* The user can then draw in the designated area a small picture using
* the current color.
* Inputs:
* const T_choice *aChoice -- Choice object selected for this action.
*---------------------------------------------------------------------------*/
void DrawMode(const T_choice *aChoice)
{
T_uezDevice lcd;
T_uezDevice ts;
static T_uezQueue queue = (TUInt32)NULL;
INT_32 winX, winY;
T_pixelColor *pixels;
T_uezInputEvent inputEvent;
TBool isDrawing = EFalse;
INT_32 lastWinX, lastWinY;
G_drExit = EFalse;
#ifdef NO_DYNAMIC_MEMORY_ALLOC
if (NULL == queue)
{
if (UEZQueueCreate(1, sizeof(T_uezInputEvent), &queue) != UEZ_ERROR_NONE)
{
queue = NULL;
}
}
if (NULL != queue) {
/* Register the queue so that the IAR Stateviewer Plugin knows about it. */
UEZQueueAddToRegistry( queue, "Draw TS" );
#else
if (UEZQueueCreate(1, sizeof(T_uezInputEvent), &queue) == UEZ_ERROR_NONE) {
#endif
// Open up the touchscreen and pass in the queue to receive events
if (UEZTSOpen("Touchscreen", &ts, &queue)==UEZ_ERROR_NONE) {
// Open the LCD and get the pixel buffer
if (UEZLCDOpen("LCD", &lcd) == UEZ_ERROR_NONE) {
UEZLCDGetFrame(lcd, 0, (void **)&pixels);
// Put the draw screen up
DR_Screen(lcd);
DR_DrawColor();
while (!G_drExit) {
// Wait forever until we receive a touchscreen event
// NOTE: UEZTSGetReading() can also be used, but it doesn't wait.
if (UEZQueueReceive(queue, &inputEvent, UEZ_TIMEOUT_INFINITE)==UEZ_ERROR_NONE) {
winX = inputEvent.iEvent.iXY.iX;
winY = inputEvent.iEvent.iXY.iY;
swim_get_virtual_xy(&G_drWin, &winX, &winY);
// Are we in the drawing area?
if ((winX > DR_IMAGE_LEFT) && (winX < DR_IMAGE_RIGHT) &&
(winY > DR_IMAGE_TOP) && (winY < DR_IMAGE_BOTTOM)) {
// Pen down or up?
if (inputEvent.iEvent.iXY.iAction == XY_ACTION_PRESS_AND_HOLD) {
UEZLCDScreensaverWake();
if (G_drColor == BLACK) {
// Draw a 3x3 block in the area
swim_set_pen_color(&G_drWin, G_drColor);
if (isDrawing) {
DrawBlockLine(lastWinX, lastWinY, winX, winY);
} else {
DrawBlockPixel(winX, winY);
}
} else {
// Draw a dot
swim_set_pen_color(&G_drWin, G_drColor);
if (isDrawing) {
swim_put_line(&G_drWin, lastWinX, lastWinY, winX, winY);
} else {
swim_put_pixel(&G_drWin, winX, winY);
}
}
isDrawing = ETrue;
lastWinX = winX;
lastWinY = winY;
} else {
// No longer drawing
isDrawing = EFalse;
}
} else {
ChoicesUpdateByReading(&G_drWin, G_drChoices, &inputEvent);
if (inputEvent.iEvent.iXY.iAction == XY_ACTION_RELEASE)
isDrawing = EFalse;
}
}
}
UEZLCDClose(lcd);
}
UEZTSClose(ts, queue);
}
#ifndef NO_DYNAMIC_MEMORY_ALLOC
UEZQueueDelete(queue);
#endif
}
}
void BrightnessControlMode(const T_choice *aChoice)
{
T_uezDevice ts;
static T_uezQueue queue = NULL;
static T_brightnessControlWorkspace *G_ws = NULL;
INT_32 winX, winY;
T_uezInputEvent inputEvent;
#if ENABLE_UEZ_BUTTON
T_uezDevice keypadDevice;
#endif
#if UEZ_ENABLE_LIGHT_SENSOR
TUInt32 levelCurrent = 1, levelPrevious = 0;
T_uezDevice ls;
DEVICE_LightSensor **p;
T_uezError error;
char levelText[30];
TBool lightSensorActive = EFalse;
if( UEZDeviceTableFind("Light Sensor", &ls) == UEZ_ERROR_NONE) {
if(UEZDeviceTableGetWorkspace(ls, (T_uezDeviceWorkspace **)&p) == UEZ_ERROR_NONE) {
if((*p)->Open((void *)p, "I2C1") == UEZ_ERROR_NONE) {
lightSensorActive = ETrue;
}
}
}
#endif
#ifdef NO_DYNAMIC_MEMORY_ALLOC
if (NULL == G_ws)
{
G_ws = UEZMemAlloc(sizeof(*G_ws));
}
#else
G_ws = UEZMemAlloc(sizeof(*G_ws));
#endif
#if UEZ_ENABLE_LIGHT_SENSOR
UEZTaskSuspend(G_lightSensorTask);
#endif
if (!G_ws)
return;
memset(G_ws, 0, sizeof(*G_ws));
G_ws->iExit = EFalse;
G_ws->iNeedUpdate = ETrue;
#ifdef NO_DYNAMIC_MEMORY_ALLOC
if (NULL == queue)
{
if (UEZQueueCreate(1, sizeof(T_uezInputEvent), &queue) != UEZ_ERROR_NONE)
{
queue = NULL;
}
}
if (NULL != queue) {
/* Register the queue so that the IAR Stateviewer Plugin knows about it. */
UEZQueueAddToRegistry( queue, "Brightness TS" );
#else
if (UEZQueueCreate(1, sizeof(T_uezInputEvent), &queue) == UEZ_ERROR_NONE) {
#if UEZ_REGISTER
UEZQueueSetName(queue, "Brightness", "\0");
#endif
#endif
#if ENABLE_UEZ_BUTTON
UEZKeypadOpen("BBKeypad", &keypadDevice, &queue);
#endif
// Open up the touchscreen and pass in the queue to receive events
if (UEZTSOpen("Touchscreen", &ts, &queue)==UEZ_ERROR_NONE) {
// Open the LCD and get the pixel buffer
if (UEZLCDOpen("LCD", &G_ws->iLCD) == UEZ_ERROR_NONE) {
UEZLCDGetBacklightLevel(G_ws->iLCD, &G_ws->iLevel, &G_ws->iNumLevels);
// Put the screen up
BCMScreen(G_ws);
// Sit here in a loop until we are done
while (!G_ws->iExit) {
// Do choices and updates
if (UEZQueueReceive(queue, &inputEvent, 500)==UEZ_ERROR_NONE) {
winX = inputEvent.iEvent.iXY.iX;
winY = inputEvent.iEvent.iXY.iY;
swim_get_virtual_xy(&G_win, &winX, &winY);
if (inputEvent.iEvent.iXY.iAction == XY_ACTION_PRESS_AND_HOLD) {
// Are we in the panel?
if ((winY >= G_ws->iRSlidePanel.iTop) && (winY <= G_ws->iRSlidePanel.iBottom) &&
(winX >= G_ws->iRSlidePanel.iLeft) && (winX <= G_ws->iRSlidePanel.iRight)) {
// Inside the panel and touching the screen, let's map this to an intensity
// of 0-255
if(winY > G_ws->iRGroove.iBottom)
G_ws->iLevel = 0;
else
{
G_ws->iLevel =
(G_ws->iRGroove.iBottom - winY)*(G_ws->iNumLevels)/
(1+G_ws->iRGroove.iBottom-G_ws->iRGroove.iTop);
}
UEZLCDSetBacklightLevel(G_ws->iLCD, G_ws->iLevel);
G_ws->iNeedUpdate = ETrue;
}
}
ChoicesUpdateByReading(&G_win, G_ws->iChoices, &inputEvent);
#if UEZ_ENABLE_LIGHT_SENSOR
if (lightSensorActive) {
levelCurrent = (*p)->GetLevel((void *)p);
if(levelCurrent == 0xFFFFFFFF) { //ligh sensor no longer resonding
lightSensorActive = EFalse;
break;
}
if( levelCurrent != levelPrevious) {
swim_set_font(&G_win, &APP_DEMO_DEFAULT_FONT);
swim_set_fill_color(&G_win, BLACK);
swim_set_pen_color(&G_win, BLACK);
sprintf(levelText, "Ambient Light Level: %04d lux\0", levelCurrent);
//erase old text
swim_put_box(&G_win,
(UEZ_LCD_DISPLAY_WIDTH/2) - (swim_get_text_line_width(&G_win, levelText) /2),//x1
BCM_SLIDE_PANEL_OUTER_PADDING,//y1
(UEZ_LCD_DISPLAY_WIDTH/2) + (swim_get_text_line_width(&G_win, levelText) /2),//x2
BCM_SLIDE_PANEL_OUTER_PADDING + swim_get_font_height(&G_win));//y2
//put new text
swim_set_pen_color(&G_win, YELLOW);
swim_put_text_xy(&G_win, levelText,
(UEZ_LCD_DISPLAY_WIDTH/2) - (swim_get_text_line_width(&G_win, levelText) /2),//x
(BCM_SLIDE_PANEL_OUTER_PADDING));//y
levelPrevious = levelCurrent;
}
}
#endif
}
if (G_ws->iNeedUpdate) {
BCMUpdate(G_ws);
G_ws->iNeedUpdate = EFalse;
}
}
UEZLCDClose(G_ws->iLCD);
}
UEZTSClose(ts, queue);
}
#if ENABLE_UEZ_BUTTON
UEZKeypadClose(keypadDevice, &queue);
#endif
#ifndef NO_DYNAMIC_MEMORY_ALLOC
UEZQueueDelete(queue);
#endif
#if UEZ_ENABLE_LIGHT_SENSOR
(*p)->Close((void *)p);
UEZTaskResume(G_lightSensorTask);
#endif
}
/* <<< WHIS >>> Potential memory leak in FreeRTOS version as G_ws is not
free'd. */
}