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PixelPaint: Add method to flatten image layers

This adds Image::flatten_all_layers() that allows the user to flatten
all the visible layers into one.
This commit is contained in:
Marcus Nilsson 2021-07-05 22:42:43 +02:00 committed by Andreas Kling
parent 76a18e1172
commit 9be08e33ea
4 changed files with 30 additions and 0 deletions

View file

@ -366,6 +366,24 @@ void Image::remove_layer(Layer& layer)
did_modify_layer_stack();
}
void Image::flatten_all_layers()
{
if (m_layers.size() < 2)
return;
auto& bottom_layer = m_layers.at(0);
GUI::Painter painter(bottom_layer.bitmap());
paint_into(painter, { 0, 0, m_size.width(), m_size.height() });
for (size_t index = m_layers.size() - 1; index > 0; index--) {
auto& layer = m_layers.at(index);
remove_layer(layer);
}
bottom_layer.set_name("Background");
select_layer(&bottom_layer);
}
void Image::select_layer(Layer* layer)
{
for (auto* client : m_clients)

View file

@ -68,6 +68,7 @@ public:
void change_layer_index(size_t old_index, size_t new_index);
void remove_layer(Layer&);
void select_layer(Layer*);
void flatten_all_layers();
void add_client(ImageClient&);
void remove_client(ImageClient&);

View file

@ -217,6 +217,7 @@ void LayerListWidget::image_did_remove_layer(size_t layer_index)
m_moving_gadget_index = {};
}
m_gadgets.remove(layer_index);
m_selected_layer_index = 0;
relayout_gadgets();
}

View file

@ -408,6 +408,16 @@ int main(int argc, char** argv)
layer_list_widget.on_context_menu_request = [&](auto& event) {
layer_menu.popup(event.screen_position());
};
layer_menu.add_separator();
layer_menu.add_action(GUI::Action::create(
"&Flatten Image", { Mod_Ctrl, Key_F }, [&](auto&) {
auto* editor = current_image_editor();
if (!editor)
return;
editor->image().flatten_all_layers();
editor->did_complete_action();
},
window));
auto& filter_menu = menubar->add_menu("&Filter");
auto& spatial_filters_menu = filter_menu.add_submenu("&Spatial");