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/**
******************************************************************************
* This file is part of the TouchGFX 4.10.0 distribution.
*
* @attention
*
* Copyright (c) 2018 STMicroelectronics.
* All rights reserved.
*
* This software is licensed under terms that can be found in the LICENSE file
* in the root directory of this software component.
* If no LICENSE file comes with this software, it is provided AS-IS.
*
******************************************************************************
*/
#include <gui/common/Carousel.hpp>
#include <BitmapDatabase.hpp>
Carousel::Carousel() :
currentAnimation(NO_ANIMATION),
carouselAnimationDuration(10),
currentNumberOfElements(0),
carouselAnimationEndedAction(0),
zoomAnimationCallback(this, &Carousel::handleZoomAnimationEvent)
{
add(visibleElements[0]);
add(visibleElements[6]);
add(visibleElements[1]);
add(visibleElements[5]);
add(visibleElements[2]);
add(visibleElements[4]);
add(visibleElements[3]);
visibleElements[0].setAnimationEndedCallback(zoomAnimationCallback);
visibleElements[2].setAnimationEndedCallback(zoomAnimationCallback);
visibleElements[6].setAnimationEndedCallback(zoomAnimationCallback);
}
Carousel::~Carousel()
{
}
void Carousel::setHighlightedNoAnimation()
{
for (int i = 1; i < NUMBER_OF_VISIBLE_ELEMENTS-1; i++)
{
if (i != 3)
{
visibleElements[i].setPosition(visibleElements[i].getX() + visibleElements[i].getWidth()/2, visibleElements[i].getY() + visibleElements[i].getHeight()/2, 0, 0);
}
}
}
void Carousel::setPositionOfCarouselElement(uint8_t index, int16_t x, int16_t y, uint16_t width, uint16_t height)
{
assert(index < NUMBER_OF_VISIBLE_ELEMENTS && "Illegal index of visible element");
visibleElementPositions[index].x = x;
visibleElementPositions[index].y = y;
visibleElementPositions[index].width = width;
visibleElementPositions[index].height = height;
visibleElements[index].setPosition(x, y, width, height);
}
int16_t Carousel::getXPositionOfVisibleElement(uint8_t index)
{
assert(index < NUMBER_OF_VISIBLE_ELEMENTS && "Illegal index of visible element");
return visibleElementPositions[index].x;
}
int16_t Carousel::getYPositionOfVisibleElement(uint8_t index)
{
assert(index < NUMBER_OF_VISIBLE_ELEMENTS && "Illegal index of visible element");
return visibleElementPositions[index].y;
}
void Carousel::addElement(const Bitmap& smallBitmap, const Bitmap& mediumBitmap, const Bitmap& largeBitmap)
{
elements[currentNumberOfElements].smallBmp = smallBitmap;
elements[currentNumberOfElements].mediumBmp = mediumBitmap;
elements[currentNumberOfElements].largeBmp = largeBitmap;
currentNumberOfElements++;
}
void Carousel::setDuration(uint16_t duration)
{
carouselAnimationDuration = duration;
}
void Carousel::setSelectedElement(uint8_t index)
{
selectedElement = index;
updateVisibleElements();
}
void Carousel::selectedNext()
{
if (currentAnimation != NO_ANIMATION)
{
return;
}
currentAnimation = ANIMATE_LEFT;
// Fade out/in elements
visibleElements[1].startFadeAnimation(0, carouselAnimationDuration);
visibleElements[6].startFadeAnimation(255, carouselAnimationDuration);
for (int i = 1; i < NUMBER_OF_VISIBLE_ELEMENTS; i++)
{
// Initiate zoom and move of the elements
visibleElements[i].startZoomAndMoveAnimation(visibleElementPositions[i-1].x, visibleElementPositions[i-1].y, visibleElementPositions[i-1].width, visibleElementPositions[i-1].height, carouselAnimationDuration, ZoomAnimationImage::FIXED_LEFT_AND_TOP);
}
// Make sure that the new middle element is in front of the other elements
remove(visibleElements[4]);
insert(&visibleElements[3], visibleElements[4]);
}
void Carousel::selectedPrevious()
{
if (currentAnimation != NO_ANIMATION)
{
return;
}
currentAnimation = ANIMATE_RIGHT;
// Fade out/in elements
visibleElements[0].startFadeAnimation(255, carouselAnimationDuration);
visibleElements[5].startFadeAnimation(0, carouselAnimationDuration);
for (int i = 0; i < NUMBER_OF_VISIBLE_ELEMENTS-1; i++)
{
// Initiate zoom and move of the elements
visibleElements[i].startZoomAndMoveAnimation(visibleElementPositions[i+1].x, visibleElementPositions[i+1].y, visibleElementPositions[i+1].width, visibleElementPositions[i+1].height, carouselAnimationDuration, ZoomAnimationImage::FIXED_LEFT_AND_TOP, EasingEquations::linearEaseNone, EasingEquations::linearEaseNone, EasingEquations::quadEaseIn);
}
// Make sure that the new middle element is in front of the other elements
remove(visibleElements[2]);
insert(&visibleElements[3], visibleElements[2]);
}
void Carousel::highlightSelectedElement()
{
if (currentAnimation != NO_ANIMATION)
{
return;
}
currentAnimation = ANIMATE_ELEMENT_SELECTED;
for (int i = 1; i < NUMBER_OF_VISIBLE_ELEMENTS-1; i++)
{
if (i != 3)
{
visibleElements[i].startZoomAnimation(0, 0, carouselAnimationDuration, ZoomAnimationImage::FIXED_CENTER);
}
}
}
void Carousel::cancelHighlightOfSelectedElement()
{
if (currentAnimation != NO_ANIMATION)
{
return;
}
currentAnimation = ANIMATE_ELEMENT_SELECTED;
for (int i = 1; i < NUMBER_OF_VISIBLE_ELEMENTS-1; i++)
{
if (i != 3)
{
visibleElements[i].startZoomAnimation(visibleElementPositions[i].width, visibleElementPositions[i].height, carouselAnimationDuration, ZoomAnimationImage::FIXED_CENTER);
}
}
}
uint8_t Carousel::prevElement(uint8_t index)
{
return (index == 0) ? currentNumberOfElements - 1 : index - 1;
}
uint8_t Carousel::nextElement(uint8_t index)
{
return (index == currentNumberOfElements-1) ? 0 : index + 1;
}
void Carousel::handleZoomAnimationEvent(const ZoomAnimationImage& element)
{
if (currentAnimation == ANIMATE_LEFT)
{
// Reset the order of the visible elements
remove(visibleElements[4]);
insert(&visibleElements[2], visibleElements[4]);
setSelectedElement(nextElement(selectedElement));
}
else if (currentAnimation == ANIMATE_RIGHT)
{
// Reset the order of the visible elements
remove(visibleElements[2]);
insert(&visibleElements[5], visibleElements[2]);
setSelectedElement(prevElement(selectedElement));
}
else if (currentAnimation == ANIMATE_ELEMENT_SELECTED)
{
}
currentAnimation = NO_ANIMATION;
if (carouselAnimationEndedAction && carouselAnimationEndedAction->isValid())
{
carouselAnimationEndedAction->execute(*this);
}
}
void Carousel::updateVisibleElements()
{
// Update the visibleElements to match the new selected element
uint8_t currentElement = prevElement(prevElement(prevElement(selectedElement)));
for (uint8_t i = 0; i < NUMBER_OF_VISIBLE_ELEMENTS; i++)
{
visibleElements[i].setBitmaps(elements[currentElement].smallBmp, elements[currentElement].mediumBmp, elements[currentElement].largeBmp);
visibleElements[i].setPosition(visibleElementPositions[i].x, visibleElementPositions[i].y, visibleElementPositions[i].width, visibleElementPositions[i].height);
visibleElements[i].setAlpha(255);
visibleElements[i].invalidate();
currentElement = nextElement(currentElement);
}
// The two elements in the end should be ready to be faded in when
// animation starts
visibleElements[0].setAlpha(0);
visibleElements[NUMBER_OF_VISIBLE_ELEMENTS-1].setAlpha(0);
}