void SpellView::incrementalUpdate()
{
if (!mModel.get())
{
return;
}
mModel->update();
bool fullUpdateRequired = false;
SpellModel::ModelIndex maxSpellIndexFound = -1;
for (std::vector< LineInfo >::iterator it = mLines.begin(); it != mLines.end(); ++it)
{
// only update the lines that are "updateable"
SpellModel::ModelIndex spellIndex(it->mSpellIndex);
if (spellIndex != NoSpellIndex)
{
Gui::SharedStateButton* nameButton = reinterpret_cast<Gui::SharedStateButton*>(it->mLeftWidget);
// match model against line
// if don't match, then major change has happened, so do a full update
if (mModel->getItemCount() <= static_cast<unsigned>(spellIndex))
{
fullUpdateRequired = true;
break;
}
// more checking for major change.
const Spell& spell = mModel->getItem(spellIndex);
if (nameButton->getCaption() != spell.mName)
{
fullUpdateRequired = true;
break;
}
else
{
maxSpellIndexFound = spellIndex;
Gui::SharedStateButton* costButton = reinterpret_cast<Gui::SharedStateButton*>(it->mRightWidget);
if ((costButton != NULL) && (costButton->getCaption() != spell.mCostColumn))
{
costButton->setCaption(spell.mCostColumn);
}
}
}
}
// special case, look for spells added to model that are beyond last updatable item
SpellModel::ModelIndex topSpellIndex = mModel->getItemCount() - 1;
if (fullUpdateRequired ||
((0 <= topSpellIndex) && (maxSpellIndexFound < topSpellIndex)))
{
update();
}
}
