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PixelPaint: Add a Duplicate Layer action

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The "Duplicate Layer" action inserts a copy of the selected layer into
the layer stack. The new layer is placed above the selected layer.
This commit is contained in:
Tim Ledbetter 2023-03-24 17:51:24 +00:00 • committed by Jelle Raaijmakers
parent 55feecee36
commit 3faf089be5
7 changed files with 83 additions and 3 deletions
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33
Userland/Applications/PixelPaint/ImageEditor.cpp
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@ -914,4 +914,37 @@ void ImageEditor::set_appended_status_info(DeprecatedString new_status_info)
on_appended_status_info_change(m_appended_status_info);
}
DeprecatedString ImageEditor::generate_unique_layer_name(DeprecatedString const& original_layer_name)
{
constexpr StringView copy_string_view = " copy"sv;
auto copy_suffix_index = original_layer_name.find_last(copy_string_view);
if (!copy_suffix_index.has_value())
return DeprecatedString::formatted("{}{}", original_layer_name, copy_string_view);
auto after_copy_suffix_view = original_layer_name.substring_view(copy_suffix_index.value() + copy_string_view.length());
if (!after_copy_suffix_view.is_empty()) {
auto after_copy_suffix_number = after_copy_suffix_view.trim_whitespace().to_int();
if (!after_copy_suffix_number.has_value())
return DeprecatedString::formatted("{}{}", original_layer_name, copy_string_view);
}
auto layer_with_name_exists = [this](auto name) {
for (size_t i = 0; i < image().layer_count(); ++i) {
if (image().layer(i).name() == name)
return true;
}
return false;
};
auto base_layer_name = original_layer_name.substring_view(0, copy_suffix_index.value());
StringBuilder new_layer_name;
auto duplicate_name_count = 0;
do {
new_layer_name.clear();
new_layer_name.appendff("{}{} {}", base_layer_name, copy_string_view, ++duplicate_name_count);
} while (layer_with_name_exists(new_layer_name.string_view()));
return new_layer_name.to_deprecated_string();
}
}