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@@ -28,8 +28,41 @@
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#include <LibCore/Timer.h>
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#include <LibGUI/BoxLayout.h>
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#include <LibGUI/JsonArrayModel.h>
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+#include <LibGUI/Painter.h>
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#include <LibGUI/SortingProxyModel.h>
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#include <LibGUI/TableView.h>
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+#include <LibGfx/Palette.h>
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+
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+class PagemapPaintingDelegate final : public GUI::TableCellPaintingDelegate {
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+public:
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+ virtual ~PagemapPaintingDelegate() override {}
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+
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+ virtual void paint(GUI::Painter& painter, const Gfx::Rect& a_rect, const Gfx::Palette&, const GUI::Model& model, const GUI::ModelIndex& index) override
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+ {
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+ auto rect = a_rect.shrunken(2, 2);
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+ auto pagemap = model.data(index, GUI::Model::Role::Custom).to_string();
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+
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+ float scale_factor = (float)pagemap.length() / (float)rect.width();
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+
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+ for (int i = 0; i < rect.width(); ++i) {
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+ int x = rect.x() + i;
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+ char c = pagemap[(float)i * scale_factor];
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+ Color color;
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+ if (c == 'N') // Null (no page at all, typically an inode-backed page that hasn't been paged in.)
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+ color = Color::White;
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+ else if (c == 'Z') // Zero (globally shared zero page, typically an untouched anonymous page.)
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+ color = Color::from_rgb(0xc0c0ff);
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+ else if (c == 'P') // Physical (a resident page)
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+ color = Color::Black;
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+ else
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+ ASSERT_NOT_REACHED();
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+
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+ painter.draw_line({ x, rect.top() }, { x, rect.bottom() }, color);
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+ }
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+
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+ painter.draw_rect(rect, Color::Black);
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+ }
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+};
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ProcessMemoryMapWidget::ProcessMemoryMapWidget()
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{
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@@ -67,10 +100,25 @@ ProcessMemoryMapWidget::ProcessMemoryMapWidget()
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return "Volatile";
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return "Non-volatile";
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});
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+ pid_vm_fields.empend(
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+ "Page map", Gfx::TextAlignment::CenterLeft,
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+ [](auto&) {
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+ return GUI::Variant();
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+ },
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+ [](auto&) {
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+ return GUI::Variant();
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+ },
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+ [](const JsonObject& object) {
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+ auto pagemap = object.get("pagemap").as_string_or({});
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+ return pagemap;
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+ });
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pid_vm_fields.empend("cow_pages", "# CoW", Gfx::TextAlignment::CenterRight);
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pid_vm_fields.empend("name", "Name", Gfx::TextAlignment::CenterLeft);
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m_json_model = GUI::JsonArrayModel::create({}, move(pid_vm_fields));
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m_table_view->set_model(GUI::SortingProxyModel::create(*m_json_model));
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+
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+ m_table_view->set_cell_painting_delegate(6, make<PagemapPaintingDelegate>());
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+
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m_table_view->model()->set_key_column_and_sort_order(0, GUI::SortOrder::Ascending);
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m_timer = add<Core::Timer>(1000, [this] { refresh(); });
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}
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