void StackLayout::doRelayout()
{
const List<DisplayItem *> &items = getItems();
DisplayItem *inputField = items.getAt(0);
int bottom;
if (isItemVisible(inputField)) {
setItemSize(inputField, getWidth(), font->getLineHeight());
bottom = getHeight() - inputField->getHeight();
setItemPosition(inputField, 0, bottom);
}
else {
bottom = getHeight();
}
int i = 0;
upperItemNr = 0;
while (bottom > 0 && i + firstLevelVisible < stack->getLength()) {
upperItemNr++;
DisplayItem *item;
if (items.getLength() <= upperItemNr) {
item = stack->getAt(i + firstLevelVisible)->getDisplayItem(*font);
addItem(item);
}
else {
item = items.getAt(upperItemNr);
if (item == NULL) {
item = stack->getAt(i + firstLevelVisible)->getDisplayItem(*font);
setItemAt(upperItemNr, item);
}
}
if (item) {
int nw = getNumberWidth(upperItemNr + firstLevelVisible);
setItemSize(item, getWidth() - nw, -1);
int h = item->getHeight();
if (h < font->getLineHeight())
h = font->getLineHeight();
bottom -= h;
int w = item->getWidth();
if (w < getWidth() - nw)
setItemPosition(item, getWidth() - w, bottom);
else
setItemPosition(item, nw, bottom);
}
else {
bottom -= font->getLineHeight();
}
i++;
}
while (items.getLength() > upperItemNr + 1) {
removeItemAt(upperItemNr + 1);
}
while (bottom > 0) {
upperItemNr++;
bottom -= font->getLineHeight();
}
upperItemScanStart = -bottom;
}
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++;
}
int StackLayout::getItemHeight(int i)
{
if (i >= getItems().getLength())
return font->getLineHeight();
int h = 0;
DisplayItem *item = getItems().getAt(i);
if (item)
h = item->getHeight();
if (h < font->getLineHeight())
h = font->getLineHeight();
return h;
}
