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LibGUI: Add ModelIndex::data(ModelRole)

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This is a convenience API that makes accessing model data easier.
This commit is contained in:
Andreas Kling 2020-08-16 16:02:01 +02:00
parent a1e381a0f8
commit f882424869
3 changed files with 16 additions and 2 deletions
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1
Libraries/LibGUI/Forward.h
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@ -92,6 +92,7 @@ class Widget;
class Window;
class WindowServerConnection;
enum class ModelRole;
enum class SortOrder;
}

12
Libraries/LibGUI/ModelIndex.cpp
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@ -25,10 +25,20 @@
*/
#include <AK/String.h>
#include <LibGUI/ModelIndex.h>
#include <LibGUI/Model.h>
#include <LibGUI/Variant.h>
namespace GUI {
Variant ModelIndex::data(ModelRole role) const
{
if (!is_valid())
return {};
ASSERT(model());
return model()->data(*this, role);
}
const LogStream& operator<<(const LogStream& stream, const ModelIndex& value)
{
if (value.internal_data())

3
Libraries/LibGUI/ModelIndex.h
View file

@ -28,6 +28,7 @@
#include <AK/Traits.h>
#include <LibGUI/Forward.h>
#include <LibGUI/ModelRole.h>
namespace GUI {
@ -57,6 +58,8 @@ public:
const Model* model() const { return m_model; }
Variant data(ModelRole = ModelRole::Display) const;
private:
ModelIndex(const Model& model, int row, int column, void* internal_data)
: m_model(&model)