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Fragment.cpp
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154 lines (141 loc) · 3.2 KB
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#include "SSD1306.h"
#include "Fragments.h"
/**
* @author Saurav Sajeev
*/
FragmentManager::FragmentManager(OLED &oled) : oled(&oled) {}
void FragmentManager::addToBackStack(Fragment *fragment)
{
Fragment **newFragments = new Fragment *[1];
for (int i = 0; i < fragmentCount; ++i)
{
newFragments[i] = fragments[i];
yield();
}
if (fragments != nullptr)
delete[] fragments;
fragments = newFragments;
fragments[fragmentCount++] = fragment;
}
void FragmentManager::popBackStack()
{
if (fragmentCount > 0)
{
fragments[--fragmentCount] = nullptr;
fragmentCount--;
oled->clearScr();
fragments[fragmentCount]->recycleAll();
}
}
OLED *FragmentManager::getOLED()
{
return oled;
}
Fragment::Fragment(FragmentManager &manager)
: manager(manager), drawableCount(0), drawableCapacity(2)
{
drawables = new Drawable *[drawableCapacity];
}
Fragment::~Fragment()
{
if (!isDetached)
{
for (int i = 0; i < drawableCount; ++i)
{
delete drawables[i];
}
delete[] drawables;
}
drawables = nullptr;
drawableCount = 0;
drawableCapacity = 0;
lastCount = 0;
isDetached = true;
}
void Fragment::add(Drawable *drawable)
{
if (drawableCount >= drawableCapacity)
{
drawableCapacity *= 2;
Drawable **newDrawables = new Drawable *[drawableCapacity];
for (int i = 0; i < drawableCount; ++i)
{
newDrawables[i] = drawables[i];
yield();
}
if (drawables != nullptr)
delete[] drawables;
drawables = newDrawables;
}
drawables[drawableCount++] = drawable;
}
void Fragment::inflate()
{
OLED &oled = *manager.getOLED();
for (int i = 0; i < drawableCount; ++i)
{
yield();
drawables[i]->draw(oled);
drawables[i]->setChangeState();
}
oled.inflate();
lastCount = drawableCount;
}
void Fragment::recycleNew()
{
OLED &oled = *manager.getOLED();
oled.clearScr();
for (int i = lastCount - 1; i < drawableCount; ++i)
{
if (drawables[i]->getVisibility() && drawables[i]->getChangeState())
{
drawables[i]->draw(oled);
drawables[i]->setChangeState();
}
}
oled.inflate();
lastCount = drawableCount;
}
void Fragment::recycle()
{
OLED &oled = *manager.getOLED();
for (int i = 0; i < drawableCount; ++i)
{
if (drawables[i]->getChangeState())
{
drawables[i]->draw(oled);
}
}
oled.inflate();
lastCount = drawableCount;
}
void Fragment::recycleAll()
{
OLED &oled = *manager.getOLED();
oled.clearScr();
for (int i = 0; i < drawableCount; ++i)
{
if (drawables[i]->getVisibility())
{
drawables[i]->draw(oled);
drawables[i]->setChangeState();
}
}
oled.inflate();
lastCount = drawableCount;
}
void Fragment::detach()
{
if (isDetached)
return;
isDetached = true;
for (int i = 0; i < drawableCount; ++i)
{
delete drawables[i];
}
delete[] drawables;
drawables = nullptr;
drawableCount = 0;
drawableCapacity = 0;
lastCount = 0;
}