ladybird/Libraries/LibGUI/GModel.cpp

63 lines
1.3 KiB
C++
Raw Normal View History

#include <LibGUI/GAbstractView.h>
#include <LibGUI/GModel.h>
2019-03-23 01:42:49 +01:00
GModel::GModel()
{
}
2019-03-23 01:42:49 +01:00
GModel::~GModel()
{
}
void GModel::register_view(Badge<GAbstractView>, GAbstractView& view)
{
m_views.set(&view);
}
void GModel::unregister_view(Badge<GAbstractView>, GAbstractView& view)
{
m_views.remove(&view);
}
void GModel::for_each_view(Function<void(GAbstractView&)> callback)
{
for (auto* view : m_views)
callback(*view);
}
2019-03-23 01:42:49 +01:00
void GModel::did_update()
{
if (on_model_update)
on_model_update(*this);
for_each_view([](auto& view) {
view.did_update_model();
});
}
2019-03-23 01:42:49 +01:00
void GModel::set_selected_index(const GModelIndex& index)
{
if (m_selected_index == index)
return;
m_selected_index = index;
if (on_selection_changed)
on_selection_changed(index);
for_each_view([](auto& view) {
view.did_update_selection();
});
}
GModelIndex GModel::create_index(int row, int column, const void* data) const
{
return GModelIndex(*this, row, column, const_cast<void*>(data));
}
GModelIndex GModel::sibling(int row, int column, const GModelIndex& parent) const
{
if (!parent.is_valid())
return {};
int row_count = this->row_count(parent);
if (row < 0 || row > row_count)
return {};
return index(row, column, parent);
}