/**
* Allocate / get first button from the unallocated buttons
* @retval Button pointer or message and NULL pointer if no button available
*/
TouchButton * TouchButton::allocButton(bool aOnlyAutorepeatButtons) {
TouchButton * tButtonPointer = sListStart;
if (!sButtonPoolIsInitialized) {
// mark pool as free
for (int i = 0; i < NUMBER_OF_BUTTONS_IN_POOL; ++i) {
TouchButtonPool[i].mFlags &= ~FLAG_IS_ALLOCATED;
}
sButtonPoolIsInitialized = true;
}
// walk through list
while (tButtonPointer != NULL
&& ((tButtonPointer->mFlags & FLAG_IS_ALLOCATED)
|| (aOnlyAutorepeatButtons && !(tButtonPointer->mFlags & FLAG_IS_AUTOREPEAT_BUTTON))
|| (!aOnlyAutorepeatButtons && (tButtonPointer->mFlags & FLAG_IS_AUTOREPEAT_BUTTON)))) {
tButtonPointer = tButtonPointer->mNextObject;
}
if (tButtonPointer == NULL) {
if (aOnlyAutorepeatButtons) {
failParamMessage(sButtonCombinedPoolSize, "No autorepeat button available");
} else {
failParamMessage(sButtonCombinedPoolSize, "No button available");
}
// to avoid NULL pointer
tButtonPointer = sListStart;
sButtonCombinedPoolSize++;
} else {
tButtonPointer->mFlags |= FLAG_IS_ALLOCATED;
}
sButtonCombinedPoolSize--;
if (sButtonCombinedPoolSize < sMinButtonPoolSize) {
sMinButtonPoolSize = sButtonCombinedPoolSize;
}
return tButtonPointer;
}
/**
* Allocate / get first button from the unallocated buttons
* @retval Button pointer or message and NULL pointer if no button available
*/
TouchButton * TouchButton::allocButton(bool aOnlyAutorepeatButtons) {
TouchButton * tButtonPointer;
if (!sButtonPoolIsInitialized) {
tButtonPointer = NULL;
// mark pool as free
for (int i = NUMBER_OF_BUTTONS_IN_POOL - 1; i >= 0; i--) {
TouchButtonPool[i].mFlags = 0;
TouchButtonPool[i].mNextObject = tButtonPointer;
tButtonPointer = &TouchButtonPool[i];
}
sButtonPoolIsInitialized = true;
sButtonListStart = &TouchButtonPool[0];
}
// walk through list
tButtonPointer = sButtonListStart;
while (tButtonPointer != NULL && (tButtonPointer->mFlags & FLAG_IS_ALLOCATED)) {
tButtonPointer = tButtonPointer->mNextObject;
}
if (tButtonPointer == NULL) {
failParamMessage(sButtonCombinedPoolSize, "No button available");
// to avoid NULL pointer
tButtonPointer = sButtonListStart;
} else {
tButtonPointer->mFlags |= FLAG_IS_ALLOCATED;
sButtonCombinedPoolSize--;
}
if (sButtonCombinedPoolSize < sMinButtonPoolSize) {
sMinButtonPoolSize = sButtonCombinedPoolSize;
}
return tButtonPointer;
}
int8_t TouchButton::setPosition(uint16_t aPositionX, uint16_t aPositionY) {
int8_t tRetValue = 0;
mPositionX = aPositionX;
mPositionY = aPositionY;
// check values
if (aPositionX + mWidthX > LOCAL_DISPLAY_WIDTH) {
mWidthX = LOCAL_DISPLAY_WIDTH - aPositionX;
failParamMessage(aPositionX + mWidthX, "XRight wrong");
tRetValue = TOUCHBUTTON_ERROR_X_RIGHT;
}
if (aPositionY + mHeightY > LOCAL_DISPLAY_HEIGHT) {
mHeightY = LOCAL_DISPLAY_HEIGHT - mPositionY;
failParamMessage(aPositionY + mHeightY, "YBottom wrong");
tRetValue = TOUCHBUTTON_ERROR_Y_BOTTOM;
}
return tRetValue;
}
int8_t TouchButton::setPosition(const uint16_t aPositionX, const uint16_t aPositionY) {
int8_t tRetValue = 0;
mPositionX = aPositionX;
mPositionY = aPositionY;
// check values
if (aPositionX + mWidth > mDisplay->getDisplayWidth()) {
mWidth = mDisplay->getDisplayWidth() - aPositionX;
failParamMessage(aPositionX + mWidth, "XRight wrong");
tRetValue = TOUCHBUTTON_ERROR_X_RIGHT;
}
if (aPositionY + mHeight > mDisplay->getDisplayHeight()) {
mHeight = mDisplay->getDisplayHeight() - mPositionY;
failParamMessage(aPositionY + mHeight, "YBottom wrong");
tRetValue = TOUCHBUTTON_ERROR_Y_BOTTOM;
}
return tRetValue;
}
/**
* free / release one button to the unallocated buttons
*/
void TouchButton::freeButton(TouchButton * aTouchButton) {
TouchButton * tButtonPointer = sButtonListStart;
// walk through list
while (tButtonPointer != NULL && tButtonPointer != aTouchButton) {
tButtonPointer = tButtonPointer->mNextObject;
}
if (tButtonPointer == NULL) {
failParamMessage(aTouchButton, "Button not found in list");
} else {
sButtonCombinedPoolSize++;
tButtonPointer->mFlags &= ~FLAG_IS_ALLOCATED;
tButtonPointer->mFlags &= ~FLAG_IS_ACTIVE;
}
}