void StackLayout::processLine(uint8_t *pixelData, int dataOffset)
{
if (itemNr < 0)
return;
if (itemScanLine >= getItemHeight(itemNr)) {
itemScanLine = 0;
if (--itemNr < 0)
return;
currentNumberWidth = getNumberWidth(itemNr + firstLevelVisible);
}
DisplayItem *item = NULL;
if (itemNr < getItems().getLength())
item = getItems().getAt(itemNr);
if (itemScanLine == 0 && item) {
if (drawOffsetX <= item->getX())
item->initLineScanning(0, 0, drawWidth - item->getX());
else
item->initLineScanning(0, drawOffsetX - item->getX(), drawWidth);
}
if (itemNr > 0)
drawNumber(pixelData, dataOffset, itemNr + firstLevelVisible);
if (item != NULL && isItemVisible(item)) {
if (itemScanLine < item->getHeight()) {
if (drawOffsetX <= item->getX())
item->processLine(pixelData, dataOffset + item->getX() - drawOffsetX);
else
item->processLine(pixelData, dataOffset);
}
}
itemScanLine++;
}
void StackLayout::initLineScanning(int scanLine, int drawOffsetX, int drawWidth)
{
itemNr = upperItemNr;
itemScanLine = upperItemScanStart + scanLine;
while (itemScanLine > getItemHeight(itemNr)) {
itemScanLine -= getItemHeight(itemNr);
itemNr--;
}
this->drawOffsetX = drawOffsetX;
this->drawWidth = drawWidth;
currentNumberWidth = getNumberWidth(itemNr + firstLevelVisible);
DisplayItem *item = NULL;
if (itemNr < getItems().getLength())
item = getItems().getAt(itemNr);
if (item) {
if (drawOffsetX <= item->getX())
item->initLineScanning(scanLine - item->getY(), 0, drawWidth - item->getX());
else
item->initLineScanning(scanLine - item->getY(), drawOffsetX - item->getX(), drawWidth);
}
}
