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ThemeEditor: Add generic RoleModel template class

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This is to simplify the code, as Color, Alignment, Flag, Metric and Path
RoleModel classes looked exactly the same.

Additionally, I've added a try_create() function for error propagation.
:^)
This commit is contained in:
Karol Kosek 2022-04-17 14:25:14 +02:00 • committed by Andreas Kling
parent 73552c1856
commit 8817d3ec58
1 changed files with 25 additions and 0 deletions
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25
Userland/Applications/ThemeEditor/main.cpp
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@ -33,6 +33,31 @@
#include <LibMain/Main.h>
#include <unistd.h>
template<typename T>
class RoleModel final : public GUI::ItemListModel<T> {
public:
static ErrorOr<NonnullRefPtr<RoleModel>> try_create(Vector<T> const& data)
{
return adopt_nonnull_ref_or_enomem(new (nothrow) RoleModel<T>(data));
}
virtual GUI::Variant data(GUI::ModelIndex const& index, GUI::ModelRole role) const override
{
if (role == GUI::ModelRole::Display)
return Gfx::to_string(this->m_data[index.row()]);
if (role == GUI::ModelRole::Custom)
return this->m_data[index.row()];
return GUI::ItemListModel<T>::data(index, role);
}
private:
explicit RoleModel(Vector<T> const& data)
: GUI::ItemListModel<T>(data)
{
}
};
class ColorRoleModel final : public GUI::ItemListModel<Gfx::ColorRole> {
public:
explicit ColorRoleModel(Vector<Gfx::ColorRole> const& data)