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LibGUI: Add ModelRole::IconOpacity and support it in all views :^)

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This role allows you to specify a custom opacity for icon painting.
Note that the opacity is not in effect when the item is either
selected and/or hovered.
This commit is contained in:
Andreas Kling 2021-07-27 17:23:52 +02:00
parent 2d1eff01a2
commit 8ba47facf6
6 changed files with 20 additions and 10 deletions
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3
Userland/Libraries/LibGUI/ColumnsView.cpp
View file

@ -118,7 +118,8 @@ void ColumnsView::paint_event(PaintEvent& event)
} else if (m_hovered_index.is_valid() && m_hovered_index.parent() == index.parent() && m_hovered_index.row() == index.row()) {
painter.blit_brightened(icon_rect.location(), *bitmap, bitmap->rect());
} else {
painter.blit(icon_rect.location(), *bitmap, bitmap->rect());
auto opacity = index.data(ModelRole::IconOpacity).as_float_or(1.0f);
painter.blit(icon_rect.location(), *bitmap, bitmap->rect(), opacity);
}
}
}