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PopupMenu: Change argument type to optional

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Negative wantedY arguments are valid, so we need to be able to
differentiate between an unspecified argument and a
specified-but-negative argument.
This commit is contained in:
reuk 2025-08-19 10:30:36 +01:00
parent 78a93157de
commit d929adc9e8
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1 changed files with 17 additions and 12 deletions
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29
modules/juce_gui_basics/menus/juce_PopupMenu.cpp
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@ -256,7 +256,7 @@ private:
auto onFocus = [&item]
{
item.parentWindow.disableMouseMovesOnMenuAndAncestors();
item.parentWindow.ensureItemComponentIsVisible (item, -1);
item.parentWindow.ensureItemComponentIsVisible (item, std::nullopt);
item.parentWindow.setCurrentlyHighlightedChild (&item);
};
@ -440,7 +440,7 @@ struct MenuWindow final : public Component
});
const auto y = targetPosition.getY() - windowPos.getY();
ensureItemComponentIsVisible (**iter, isPositiveAndBelow (y, windowPos.getHeight()) ? y : -1);
ensureItemComponentIsVisible (**iter, isPositiveAndBelow (y, windowPos.getHeight()) ? std::optional (y) : std::nullopt);
}
}
@ -1091,7 +1091,7 @@ struct MenuWindow final : public Component
return correctColumnWidths (maxMenuW);
}
void ensureItemComponentIsVisible (const ItemComponent& itemComp, int wantedY)
void ensureItemComponentIsVisible (const ItemComponent& itemComp, std::optional<int> wantedY)
{
const auto parentArea = getParentArea (windowPos.getPosition(), options.getParentComponent()) / scaleFactor;
@ -1111,21 +1111,26 @@ struct MenuWindow final : public Component
static std::optional<PosAndOffset> computeInitialPosAndOffset (Rectangle<int> windowPos,
const Rectangle<int>& parentArea,
const Rectangle<int>& itemCompBounds,
int wantedY)
std::optional<int> wantedY)
{
if (windowPos.getHeight() <= PopupMenuSettings::scrollZone * 4
|| (wantedY <= 0 && 0 <= itemCompBounds.getY() && itemCompBounds.getBottom() <= windowPos.getHeight()))
|| (! wantedY.has_value() && 0 <= itemCompBounds.getY() && itemCompBounds.getBottom() <= windowPos.getHeight()))
{
return {};
}
if (wantedY < 0)
wantedY = jlimit (PopupMenuSettings::scrollZone,
jmax (PopupMenuSettings::scrollZone,
windowPos.getHeight() - (PopupMenuSettings::scrollZone + itemCompBounds.getHeight())),
itemCompBounds.getY());
const auto adjustedY = std::invoke ([&]
{
if (wantedY.has_value())
return *wantedY;
const auto deltaY = windowPos.getY() + wantedY - itemCompBounds.getY();
return jlimit (PopupMenuSettings::scrollZone,
jmax (PopupMenuSettings::scrollZone,
windowPos.getHeight() - (PopupMenuSettings::scrollZone + itemCompBounds.getHeight())),
itemCompBounds.getY());
});
const auto deltaY = windowPos.getY() + adjustedY - itemCompBounds.getY();
windowPos.setSize (jmin (windowPos.getWidth(), parentArea.getWidth()),
jmin (windowPos.getHeight(), parentArea.getHeight()));
@ -1134,7 +1139,7 @@ struct MenuWindow final : public Component
parentArea.getBottom() - windowPos.getHeight(),
deltaY);
windowPos.setPosition (windowPos.getX(), newY);
windowPos.setY (newY);
return PosAndOffset { windowPos, newY - deltaY };
}