LibGUI: Remove Widget::try_set_layout<T>()

And fall back to the infallible set_layout<T>().

Work towards #20557.

Userland/Applications/CrashReporter/main.cpp

@@ -237,7 +237,7 @@ ErrorOr<int> serenity_main(Main::Arguments arguments)
     auto& tab_widget = *widget->find_descendant_of_type_named<GUI::TabWidget>("tab_widget");
 
     auto backtrace_tab = TRY(tab_widget.try_add_tab<GUI::Widget>("Backtrace"_string));
-    TRY(backtrace_tab->try_set_layout<GUI::VerticalBoxLayout>(4));
+    backtrace_tab->set_layout<GUI::VerticalBoxLayout>(4);
 
     auto backtrace_label = TRY(backtrace_tab->try_add<GUI::Label>("A backtrace for each thread alive during the crash is listed below:"_string));
     backtrace_label->set_text_alignment(Gfx::TextAlignment::CenterLeft);
@@ -257,7 +257,7 @@ ErrorOr<int> serenity_main(Main::Arguments arguments)
     cpu_registers_tab_widget->set_tab_position(GUI::TabWidget::TabPosition::Bottom);
 
     auto environment_tab = TRY(tab_widget.try_add_tab<GUI::Widget>("Environment"_string));
-    TRY(environment_tab->try_set_layout<GUI::VerticalBoxLayout>(4));
+    environment_tab->set_layout<GUI::VerticalBoxLayout>(4);
 
     auto environment_text_editor = TRY(environment_tab->try_add<GUI::TextEditor>());
     environment_text_editor->set_text(DeprecatedString::join('\n', environment));
@@ -266,7 +266,7 @@ ErrorOr<int> serenity_main(Main::Arguments arguments)
     environment_text_editor->set_should_hide_unnecessary_scrollbars(true);
 
     auto memory_regions_tab = TRY(tab_widget.try_add_tab<GUI::Widget>("Memory Regions"_string));
-    TRY(memory_regions_tab->try_set_layout<GUI::VerticalBoxLayout>(4));
+    memory_regions_tab->set_layout<GUI::VerticalBoxLayout>(4);
 
     auto memory_regions_text_editor = TRY(memory_regions_tab->try_add<GUI::TextEditor>());
     memory_regions_text_editor->set_text(DeprecatedString::join('\n', memory_regions));
@@ -331,7 +331,7 @@ ErrorOr<int> serenity_main(Main::Arguments arguments)
         [&](auto results) -> ErrorOr<void> {
             for (auto& backtrace : results.thread_backtraces) {
                 auto container = TRY(backtrace_tab_widget->try_add_tab<GUI::Widget>(TRY(String::from_deprecated_string(backtrace.title))));
-                TRY(container->template try_set_layout<GUI::VerticalBoxLayout>(4));
+                container->template set_layout<GUI::VerticalBoxLayout>(4);
                 auto backtrace_text_editor = TRY(container->template try_add<GUI::TextEditor>());
                 backtrace_text_editor->set_text(backtrace.text);
                 backtrace_text_editor->set_mode(GUI::TextEditor::Mode::ReadOnly);
@@ -342,7 +342,7 @@ ErrorOr<int> serenity_main(Main::Arguments arguments)
 
             for (auto& cpu_registers : results.thread_cpu_registers) {
                 auto container = TRY(cpu_registers_tab_widget->try_add_tab<GUI::Widget>(TRY(String::from_deprecated_string(cpu_registers.title))));
-                TRY(container->template try_set_layout<GUI::VerticalBoxLayout>(4));
+                container->template set_layout<GUI::VerticalBoxLayout>(4);
                 auto cpu_registers_text_editor = TRY(container->template try_add<GUI::TextEditor>());
                 cpu_registers_text_editor->set_text(cpu_registers.text);
                 cpu_registers_text_editor->set_mode(GUI::TextEditor::Mode::ReadOnly);

Userland/Applications/FileManager/PropertiesWindow.cpp

@@ -71,7 +71,7 @@ PropertiesWindow::PropertiesWindow(DeprecatedString const& path, Window* parent_
 ErrorOr<void> PropertiesWindow::create_widgets(bool disable_rename)
 {
     auto main_widget = TRY(set_main_widget<GUI::Widget>());
-    TRY(main_widget->try_set_layout<GUI::VerticalBoxLayout>(4, 6));
+    main_widget->set_layout<GUI::VerticalBoxLayout>(4, 6);
     main_widget->set_fill_with_background_color(true);
 
     auto tab_widget = TRY(main_widget->try_add<GUI::TabWidget>());
@@ -79,7 +79,7 @@ ErrorOr<void> PropertiesWindow::create_widgets(bool disable_rename)
     TRY(create_file_type_specific_tabs(tab_widget));
 
     auto button_widget = TRY(main_widget->try_add<GUI::Widget>());
-    TRY(button_widget->try_set_layout<GUI::HorizontalBoxLayout>(GUI::Margins {}, 5));
+    button_widget->set_layout<GUI::HorizontalBoxLayout>(GUI::Margins {}, 5);
     button_widget->set_fixed_height(22);
 
     TRY(button_widget->add_spacer());

Userland/Applications/FileManager/main.cpp

@@ -388,7 +388,7 @@ ErrorOr<int> run_in_desktop_mode()
     window->set_icon(desktop_icon);
 
     auto desktop_widget = TRY(window->set_main_widget<FileManager::DesktopWidget>());
-    TRY(desktop_widget->try_set_layout<GUI::VerticalBoxLayout>());
+    desktop_widget->set_layout<GUI::VerticalBoxLayout>();
 
     auto directory_view = TRY(desktop_widget->try_add<DirectoryView>(DirectoryView::Mode::Desktop));
     directory_view->set_name("directory_view");

Userland/Applications/Piano/MainWidget.cpp

@@ -36,7 +36,7 @@ MainWidget::MainWidget(TrackManager& track_manager, AudioPlayerLoop& loop)
 
 ErrorOr<void> MainWidget::initialize()
 {
-    TRY(try_set_layout<GUI::VerticalBoxLayout>(2, 2));
+    set_layout<GUI::VerticalBoxLayout>(2, 2);
     set_fill_with_background_color(true);
 
     m_wave_widget = TRY(try_add<WaveWidget>(m_track_manager));
@@ -52,7 +52,7 @@ ErrorOr<void> MainWidget::initialize()
     m_player_widget = TRY(try_add<PlayerWidget>(m_track_manager, *this, m_audio_loop));
 
     m_keys_and_knobs_container = TRY(try_add<GUI::Widget>());
-    TRY(m_keys_and_knobs_container->try_set_layout<GUI::HorizontalBoxLayout>(GUI::Margins {}, 2));
+    m_keys_and_knobs_container->set_layout<GUI::HorizontalBoxLayout>(GUI::Margins {}, 2);
     m_keys_and_knobs_container->set_fixed_height(130);
     m_keys_and_knobs_container->set_fill_with_background_color(true);
 
@@ -60,7 +60,7 @@ ErrorOr<void> MainWidget::initialize()
 
     m_octave_container = TRY(m_keys_and_knobs_container->try_add<GUI::Widget>());
     m_octave_container->set_preferred_width(GUI::SpecialDimension::Fit);
-    TRY(m_octave_container->try_set_layout<GUI::VerticalBoxLayout>());
+    m_octave_container->set_layout<GUI::VerticalBoxLayout>();
     auto octave_label = TRY(m_octave_container->try_add<GUI::Label>("Octave"_string));
     octave_label->set_preferred_width(GUI::SpecialDimension::Fit);
     m_octave_value = TRY(m_octave_container->try_add<GUI::Label>(TRY(String::number(m_track_manager.keyboard()->virtual_keyboard_octave()))));

Userland/Applications/Piano/PlayerWidget.cpp

@@ -41,7 +41,7 @@ PlayerWidget::PlayerWidget(TrackManager& manager, MainWidget& main_widget, Audio
 
 ErrorOr<void> PlayerWidget::initialize()
 {
-    TRY(try_set_layout<GUI::HorizontalBoxLayout>());
+    set_layout<GUI::HorizontalBoxLayout>();
     set_fill_with_background_color(true);
     TRY(m_track_number_choices.try_append("1"));
 

Userland/Applications/Piano/TrackControlsWidget.cpp

@@ -22,12 +22,12 @@ ErrorOr<NonnullRefPtr<TrackControlsWidget>> TrackControlsWidget::try_create(Weak
 {
     auto widget = TRY(adopt_nonnull_ref_or_enomem(new (nothrow) TrackControlsWidget(move(track))));
 
-    TRY(widget->try_set_layout<GUI::HorizontalBoxLayout>());
+    widget->set_layout<GUI::HorizontalBoxLayout>();
     widget->set_preferred_width(GUI::SpecialDimension::Grow);
     widget->set_fill_with_background_color(true);
 
     auto mastering_parameters = TRY(widget->try_add<GUI::GroupBox>());
-    TRY(mastering_parameters->try_set_layout<GUI::HorizontalBoxLayout>());
+    mastering_parameters->set_layout<GUI::HorizontalBoxLayout>();
 
     auto strong_track = widget->m_track.value();
 
@@ -40,7 +40,7 @@ ErrorOr<NonnullRefPtr<TrackControlsWidget>> TrackControlsWidget::try_create(Weak
 
     for (auto& processor : strong_track->processor_chain()) {
         auto processor_parameters = TRY(widget->try_add<GUI::GroupBox>());
-        TRY(processor_parameters->try_set_layout<GUI::HorizontalBoxLayout>());
+        processor_parameters->set_layout<GUI::HorizontalBoxLayout>();
 
         for (auto& parameter : processor->parameters())
             (void)TRY(processor_parameters->try_add<ProcessorParameterWidget>(parameter));

Userland/Applications/PixelPaint/Filters/Bloom.cpp

@@ -38,7 +38,7 @@ ErrorOr<RefPtr<GUI::Widget>> Bloom::get_settings_widget()
 {
     if (!m_settings_widget) {
         auto settings_widget = TRY(GUI::Widget::try_create());
-        TRY(settings_widget->try_set_layout<GUI::VerticalBoxLayout>());
+        settings_widget->set_layout<GUI::VerticalBoxLayout>();
 
         auto name_label = TRY(settings_widget->try_add<GUI::Label>("Bloom Filter"_string));
         name_label->set_font_weight(Gfx::FontWeight::Bold);
@@ -47,7 +47,7 @@ ErrorOr<RefPtr<GUI::Widget>> Bloom::get_settings_widget()
 
         auto luma_lower_container = TRY(settings_widget->try_add<GUI::Widget>());
         luma_lower_container->set_fixed_height(50);
-        TRY(luma_lower_container->try_set_layout<GUI::VerticalBoxLayout>(GUI::Margins { 4, 0, 4, 0 }));
+        luma_lower_container->set_layout<GUI::VerticalBoxLayout>(GUI::Margins { 4, 0, 4, 0 });
 
         auto luma_lower_label = TRY(luma_lower_container->try_add<GUI::Label>("Luma lower bound:"_string));
         luma_lower_label->set_text_alignment(Gfx::TextAlignment::CenterLeft);
@@ -63,7 +63,7 @@ ErrorOr<RefPtr<GUI::Widget>> Bloom::get_settings_widget()
 
         auto radius_container = TRY(settings_widget->try_add<GUI::Widget>());
         radius_container->set_fixed_height(50);
-        TRY(radius_container->try_set_layout<GUI::VerticalBoxLayout>(GUI::Margins { 4, 0, 4, 0 }));
+        radius_container->set_layout<GUI::VerticalBoxLayout>(GUI::Margins { 4, 0, 4, 0 });
 
         auto radius_label = TRY(radius_container->try_add<GUI::Label>("Blur Radius:"_string));
         radius_label->set_text_alignment(Gfx::TextAlignment::CenterLeft);

Userland/Applications/PixelPaint/Filters/FastBoxBlur.cpp

@@ -40,7 +40,7 @@ ErrorOr<RefPtr<GUI::Widget>> FastBoxBlur::get_settings_widget()
 {
     if (!m_settings_widget) {
         auto settings_widget = TRY(GUI::Widget::try_create());
-        TRY(settings_widget->try_set_layout<GUI::VerticalBoxLayout>());
+        settings_widget->set_layout<GUI::VerticalBoxLayout>();
 
         auto name_label = TRY(settings_widget->try_add<GUI::Label>("Fast Box Blur Filter"_string));
         name_label->set_font_weight(Gfx::FontWeight::Bold);
@@ -86,7 +86,7 @@ ErrorOr<RefPtr<GUI::Widget>> FastBoxBlur::get_settings_widget()
 
         m_radius_container = TRY(settings_widget->try_add<GUI::Widget>());
         m_radius_container->set_fixed_height(20);
-        TRY(m_radius_container->try_set_layout<GUI::HorizontalBoxLayout>(GUI::Margins { 4, 0, 4, 0 }));
+        m_radius_container->set_layout<GUI::HorizontalBoxLayout>(GUI::Margins { 4, 0, 4, 0 });
 
         auto radius_label = TRY(m_radius_container->try_add<GUI::Label>("Radius:"_string));
         radius_label->set_text_alignment(Gfx::TextAlignment::CenterLeft);
@@ -103,7 +103,7 @@ ErrorOr<RefPtr<GUI::Widget>> FastBoxBlur::get_settings_widget()
         m_asymmetric_radius_container = TRY(settings_widget->try_add<GUI::Widget>());
         m_asymmetric_radius_container->set_visible(false);
         m_asymmetric_radius_container->set_fixed_height(50);
-        TRY(m_asymmetric_radius_container->try_set_layout<GUI::VerticalBoxLayout>(GUI::Margins { 4, 0, 4, 0 }));
+        m_asymmetric_radius_container->set_layout<GUI::VerticalBoxLayout>(GUI::Margins { 4, 0, 4, 0 });
 
         auto radius_x_container = TRY(m_asymmetric_radius_container->try_add<GUI::Widget>());
         radius_x_container->set_fixed_height(20);
@@ -123,7 +123,7 @@ ErrorOr<RefPtr<GUI::Widget>> FastBoxBlur::get_settings_widget()
 
         auto radius_y_container = TRY(m_asymmetric_radius_container->try_add<GUI::Widget>());
         radius_y_container->set_fixed_height(20);
-        TRY(radius_y_container->try_set_layout<GUI::HorizontalBoxLayout>());
+        radius_y_container->set_layout<GUI::HorizontalBoxLayout>();
 
         auto radius_y_label = TRY(radius_y_container->try_add<GUI::Label>("Radius Y:"_string));
         radius_y_label->set_text_alignment(Gfx::TextAlignment::CenterLeft);
@@ -140,11 +140,11 @@ ErrorOr<RefPtr<GUI::Widget>> FastBoxBlur::get_settings_widget()
         m_vector_container = TRY(settings_widget->try_add<GUI::Widget>());
         m_vector_container->set_visible(false);
         m_vector_container->set_fixed_height(50);
-        TRY(m_vector_container->try_set_layout<GUI::VerticalBoxLayout>(GUI::Margins { 4, 0, 4, 0 }));
+        m_vector_container->set_layout<GUI::VerticalBoxLayout>(GUI::Margins { 4, 0, 4, 0 });
 
         auto angle_container = TRY(m_vector_container->try_add<GUI::Widget>());
         angle_container->set_fixed_height(20);
-        TRY(angle_container->try_set_layout<GUI::HorizontalBoxLayout>());
+        angle_container->set_layout<GUI::HorizontalBoxLayout>();
 
         auto angle_label = TRY(angle_container->try_add<GUI::Label>("Angle:"_string));
         angle_label->set_text_alignment(Gfx::TextAlignment::CenterLeft);
@@ -160,7 +160,7 @@ ErrorOr<RefPtr<GUI::Widget>> FastBoxBlur::get_settings_widget()
 
         auto magnitude_container = TRY(m_vector_container->try_add<GUI::Widget>());
         magnitude_container->set_fixed_height(20);
-        TRY(magnitude_container->try_set_layout<GUI::HorizontalBoxLayout>());
+        magnitude_container->set_layout<GUI::HorizontalBoxLayout>();
 
         auto magnitude_label = TRY(magnitude_container->try_add<GUI::Label>("Magnitude:"_string));
         magnitude_label->set_text_alignment(Gfx::TextAlignment::CenterLeft);
@@ -176,7 +176,7 @@ ErrorOr<RefPtr<GUI::Widget>> FastBoxBlur::get_settings_widget()
 
         auto gaussian_container = TRY(settings_widget->try_add<GUI::Widget>());
         gaussian_container->set_fixed_height(20);
-        TRY(gaussian_container->try_set_layout<GUI::HorizontalBoxLayout>(GUI::Margins { 4, 0, 4, 0 }));
+        gaussian_container->set_layout<GUI::HorizontalBoxLayout>(GUI::Margins { 4, 0, 4, 0 });
 
         m_gaussian_checkbox = TRY(gaussian_container->try_add<GUI::CheckBox>("Approximate Gaussian Blur"_string));
         m_gaussian_checkbox->set_checked(m_approximate_gauss);

Userland/Applications/PixelPaint/Filters/Filter.cpp

@@ -26,7 +26,7 @@ ErrorOr<RefPtr<GUI::Widget>> Filter::get_settings_widget()
 {
     if (!m_settings_widget) {
         auto settings_widget = TRY(GUI::Widget::try_create());
-        (void)TRY(settings_widget->try_set_layout<GUI::VerticalBoxLayout>());
+        settings_widget->set_layout<GUI::VerticalBoxLayout>();
 
         auto name_label = TRY(settings_widget->try_add<GUI::Label>(TRY(String::from_utf8(filter_name()))));
         name_label->set_text_alignment(Gfx::TextAlignment::TopLeft);

Userland/Applications/PixelPaint/Filters/HueAndSaturation.cpp

@@ -31,7 +31,7 @@ ErrorOr<RefPtr<GUI::Widget>> HueAndSaturation::get_settings_widget()
 {
     if (!m_settings_widget) {
         auto settings_widget = TRY(GUI::Widget::try_create());
-        (void)TRY(settings_widget->try_set_layout<GUI::VerticalBoxLayout>());
+        settings_widget->set_layout<GUI::VerticalBoxLayout>();
 
         auto add_slider = [&](auto name, int min, int max, auto member) -> ErrorOr<void> {
             auto name_label = TRY(settings_widget->try_add<GUI::Label>(TRY(String::from_utf8(name))));

Userland/Applications/PixelPaint/Filters/Sepia.cpp

@@ -21,7 +21,7 @@ ErrorOr<RefPtr<GUI::Widget>> Sepia::get_settings_widget()
 {
     if (!m_settings_widget) {
         auto settings_widget = TRY(GUI::Widget::try_create());
-        TRY(settings_widget->try_set_layout<GUI::VerticalBoxLayout>());
+        settings_widget->set_layout<GUI::VerticalBoxLayout>();
 
         auto name_label = TRY(settings_widget->try_add<GUI::Label>("Sepia Filter"_string));
         name_label->set_font_weight(Gfx::FontWeight::Bold);
@@ -30,7 +30,7 @@ ErrorOr<RefPtr<GUI::Widget>> Sepia::get_settings_widget()
 
         auto amount_container = TRY(settings_widget->try_add<GUI::Widget>());
         amount_container->set_fixed_height(20);
-        TRY(amount_container->try_set_layout<GUI::HorizontalBoxLayout>(GUI::Margins { 4, 0, 4, 0 }));
+        amount_container->set_layout<GUI::HorizontalBoxLayout>(GUI::Margins { 4, 0, 4, 0 });
 
         auto amount_label = TRY(amount_container->try_add<GUI::Label>("Amount:"_string));
         amount_label->set_text_alignment(Gfx::TextAlignment::CenterLeft);

Userland/Applications/PixelPaint/Tools/BrushTool.cpp

@@ -141,11 +141,11 @@ ErrorOr<GUI::Widget*> BrushTool::get_properties_widget()
 {
     if (!m_properties_widget) {
         auto properties_widget = TRY(GUI::Widget::try_create());
-        (void)TRY(properties_widget->try_set_layout<GUI::VerticalBoxLayout>());
+        properties_widget->set_layout<GUI::VerticalBoxLayout>();
 
         auto size_container = TRY(properties_widget->try_add<GUI::Widget>());
         size_container->set_fixed_height(20);
-        (void)TRY(size_container->try_set_layout<GUI::HorizontalBoxLayout>());
+        size_container->set_layout<GUI::HorizontalBoxLayout>();
 
         auto size_label = TRY(size_container->try_add<GUI::Label>("Size:"_string));
         size_label->set_text_alignment(Gfx::TextAlignment::CenterLeft);
@@ -165,7 +165,7 @@ ErrorOr<GUI::Widget*> BrushTool::get_properties_widget()
 
         auto hardness_container = TRY(properties_widget->try_add<GUI::Widget>());
         hardness_container->set_fixed_height(20);
-        (void)TRY(hardness_container->try_set_layout<GUI::HorizontalBoxLayout>());
+        hardness_container->set_layout<GUI::HorizontalBoxLayout>();
 
         auto hardness_label = TRY(hardness_container->try_add<GUI::Label>("Hardness:"_string));
         hardness_label->set_text_alignment(Gfx::TextAlignment::CenterLeft);

Userland/Applications/PixelPaint/Tools/BucketTool.cpp

@@ -65,11 +65,11 @@ ErrorOr<GUI::Widget*> BucketTool::get_properties_widget()
 {
     if (!m_properties_widget) {
         auto properties_widget = TRY(GUI::Widget::try_create());
-        (void)TRY(properties_widget->try_set_layout<GUI::VerticalBoxLayout>());
+        properties_widget->set_layout<GUI::VerticalBoxLayout>();
 
         auto threshold_container = TRY(properties_widget->try_add<GUI::Widget>());
         threshold_container->set_fixed_height(20);
-        (void)TRY(threshold_container->try_set_layout<GUI::HorizontalBoxLayout>());
+        threshold_container->set_layout<GUI::HorizontalBoxLayout>();
 
         auto threshold_label = TRY(threshold_container->try_add<GUI::Label>("Threshold:"_string));
         threshold_label->set_text_alignment(Gfx::TextAlignment::CenterLeft);

Userland/Applications/PixelPaint/Tools/CloneTool.cpp

@@ -129,11 +129,11 @@ ErrorOr<GUI::Widget*> CloneTool::get_properties_widget()
 {
     if (!m_properties_widget) {
         auto properties_widget = TRY(GUI::Widget::try_create());
-        (void)TRY(properties_widget->try_set_layout<GUI::VerticalBoxLayout>());
+        properties_widget->set_layout<GUI::VerticalBoxLayout>();
 
         auto size_container = TRY(properties_widget->try_add<GUI::Widget>());
         size_container->set_fixed_height(20);
-        (void)TRY(size_container->try_set_layout<GUI::HorizontalBoxLayout>());
+        size_container->set_layout<GUI::HorizontalBoxLayout>();
 
         auto size_label = TRY(size_container->try_add<GUI::Label>("Size:"_string));
         size_label->set_text_alignment(Gfx::TextAlignment::CenterLeft);
@@ -152,7 +152,7 @@ ErrorOr<GUI::Widget*> CloneTool::get_properties_widget()
 
         auto hardness_container = TRY(properties_widget->try_add<GUI::Widget>());
         hardness_container->set_fixed_height(20);
-        (void)TRY(hardness_container->try_set_layout<GUI::HorizontalBoxLayout>());
+        hardness_container->set_layout<GUI::HorizontalBoxLayout>();
 
         auto hardness_label = TRY(hardness_container->try_add<GUI::Label>("Hardness:"_string));
         hardness_label->set_text_alignment(Gfx::TextAlignment::CenterLeft);

Userland/Applications/PixelPaint/Tools/EllipseTool.cpp

@@ -130,11 +130,11 @@ ErrorOr<GUI::Widget*> EllipseTool::get_properties_widget()
 {
     if (!m_properties_widget) {
         auto properties_widget = TRY(GUI::Widget::try_create());
-        (void)TRY(properties_widget->try_set_layout<GUI::VerticalBoxLayout>());
+        properties_widget->set_layout<GUI::VerticalBoxLayout>();
 
         auto thickness_container = TRY(properties_widget->try_add<GUI::Widget>());
         thickness_container->set_fixed_height(20);
-        (void)TRY(thickness_container->try_set_layout<GUI::HorizontalBoxLayout>());
+        thickness_container->set_layout<GUI::HorizontalBoxLayout>();
 
         auto thickness_label = TRY(thickness_container->try_add<GUI::Label>("Thickness:"_string));
         thickness_label->set_text_alignment(Gfx::TextAlignment::CenterLeft);
@@ -151,12 +151,12 @@ ErrorOr<GUI::Widget*> EllipseTool::get_properties_widget()
 
         auto mode_container = TRY(properties_widget->try_add<GUI::Widget>());
         mode_container->set_fixed_height(70);
-        (void)TRY(mode_container->try_set_layout<GUI::HorizontalBoxLayout>());
+        mode_container->set_layout<GUI::HorizontalBoxLayout>();
         auto mode_label = TRY(mode_container->try_add<GUI::Label>("Mode:"_string));
         mode_label->set_text_alignment(Gfx::TextAlignment::CenterLeft);
 
         auto mode_radio_container = TRY(mode_container->try_add<GUI::Widget>());
-        (void)TRY(mode_radio_container->try_set_layout<GUI::VerticalBoxLayout>());
+        mode_radio_container->set_layout<GUI::VerticalBoxLayout>();
         auto outline_mode_radio = TRY(mode_radio_container->try_add<GUI::RadioButton>("Outline"_string));
         auto fill_mode_radio = TRY(mode_radio_container->try_add<GUI::RadioButton>("Fill"_string));
         auto aa_enable_checkbox = TRY(mode_radio_container->try_add<GUI::CheckBox>("Anti-alias"_string));
@@ -178,7 +178,7 @@ ErrorOr<GUI::Widget*> EllipseTool::get_properties_widget()
 
         auto aspect_container = TRY(properties_widget->try_add<GUI::Widget>());
         aspect_container->set_fixed_height(20);
-        (void)TRY(aspect_container->try_set_layout<GUI::HorizontalBoxLayout>());
+        aspect_container->set_layout<GUI::HorizontalBoxLayout>();
 
         auto aspect_label = TRY(aspect_container->try_add<GUI::Label>("Aspect Ratio:"_string));
         aspect_label->set_text_alignment(Gfx::TextAlignment::CenterLeft);

Userland/Applications/PixelPaint/Tools/EraseTool.cpp

@@ -58,11 +58,11 @@ ErrorOr<GUI::Widget*> EraseTool::get_properties_widget()
 {
     if (!m_properties_widget) {
         auto properties_widget = TRY(GUI::Widget::try_create());
-        (void)TRY(properties_widget->try_set_layout<GUI::VerticalBoxLayout>());
+        properties_widget->set_layout<GUI::VerticalBoxLayout>();
 
         auto size_container = TRY(properties_widget->try_add<GUI::Widget>());
         size_container->set_fixed_height(20);
-        (void)TRY(size_container->try_set_layout<GUI::HorizontalBoxLayout>());
+        size_container->set_layout<GUI::HorizontalBoxLayout>();
 
         auto size_label = TRY(size_container->try_add<GUI::Label>("Size:"_string));
         size_label->set_text_alignment(Gfx::TextAlignment::CenterLeft);
@@ -80,7 +80,7 @@ ErrorOr<GUI::Widget*> EraseTool::get_properties_widget()
 
         auto hardness_container = TRY(properties_widget->try_add<GUI::Widget>());
         hardness_container->set_fixed_height(20);
-        (void)TRY(hardness_container->try_set_layout<GUI::HorizontalBoxLayout>());
+        hardness_container->set_layout<GUI::HorizontalBoxLayout>();
 
         auto hardness_label = TRY(hardness_container->try_add<GUI::Label>("Hardness:"_string));
         hardness_label->set_text_alignment(Gfx::TextAlignment::CenterLeft);
@@ -97,7 +97,7 @@ ErrorOr<GUI::Widget*> EraseTool::get_properties_widget()
 
         auto secondary_color_container = TRY(properties_widget->try_add<GUI::Widget>());
         secondary_color_container->set_fixed_height(20);
-        (void)TRY(secondary_color_container->try_set_layout<GUI::HorizontalBoxLayout>());
+        secondary_color_container->set_layout<GUI::HorizontalBoxLayout>();
 
         auto use_secondary_color_checkbox = TRY(secondary_color_container->try_add<GUI::CheckBox>());
         use_secondary_color_checkbox->set_checked(m_use_secondary_color);
@@ -108,13 +108,13 @@ ErrorOr<GUI::Widget*> EraseTool::get_properties_widget()
 
         auto mode_container = TRY(properties_widget->try_add<GUI::Widget>());
         mode_container->set_fixed_height(46);
-        (void)TRY(mode_container->try_set_layout<GUI::HorizontalBoxLayout>());
+        mode_container->set_layout<GUI::HorizontalBoxLayout>();
         auto mode_label = TRY(mode_container->try_add<GUI::Label>("Draw Mode:"_string));
         mode_label->set_text_alignment(Gfx::TextAlignment::CenterLeft);
         mode_label->set_fixed_size(80, 20);
 
         auto mode_radio_container = TRY(mode_container->try_add<GUI::Widget>());
-        (void)TRY(mode_radio_container->try_set_layout<GUI::VerticalBoxLayout>());
+        mode_radio_container->set_layout<GUI::VerticalBoxLayout>();
         auto pencil_mode_radio = TRY(mode_radio_container->try_add<GUI::RadioButton>("Pencil"_string));
         auto brush_mode_radio = TRY(mode_radio_container->try_add<GUI::RadioButton>("Brush"_string));
 

Userland/Applications/PixelPaint/Tools/GradientTool.cpp

@@ -202,11 +202,11 @@ ErrorOr<GUI::Widget*> GradientTool::get_properties_widget()
 {
     if (!m_properties_widget) {
         auto properties_widget = TRY(GUI::Widget::try_create());
-        (void)TRY(properties_widget->try_set_layout<GUI::VerticalBoxLayout>());
+        properties_widget->set_layout<GUI::VerticalBoxLayout>();
 
         auto mode_container = TRY(properties_widget->try_add<GUI::Widget>());
         mode_container->set_fixed_height(20);
-        (void)TRY(mode_container->try_set_layout<GUI::HorizontalBoxLayout>());
+        mode_container->set_layout<GUI::HorizontalBoxLayout>();
         auto mode_label = TRY(mode_container->try_add<GUI::Label>("Gradient Type:"_string));
         mode_label->set_text_alignment(Gfx::TextAlignment::CenterLeft);
         mode_label->set_fixed_size(80, 20);
@@ -235,7 +235,7 @@ ErrorOr<GUI::Widget*> GradientTool::get_properties_widget()
 
         auto opacity_container = TRY(properties_widget->try_add<GUI::Widget>());
         opacity_container->set_fixed_height(20);
-        (void)TRY(opacity_container->try_set_layout<GUI::HorizontalBoxLayout>());
+        opacity_container->set_layout<GUI::HorizontalBoxLayout>();
 
         auto opacity_label = TRY(opacity_container->try_add<GUI::Label>("Opacity:"_string));
         opacity_label->set_text_alignment(Gfx::TextAlignment::CenterLeft);
@@ -253,7 +253,7 @@ ErrorOr<GUI::Widget*> GradientTool::get_properties_widget()
         set_primary_slider(opacity_slider);
 
         auto hardness_container = TRY(properties_widget->try_add<GUI::Widget>());
-        (void)TRY(hardness_container->try_set_layout<GUI::HorizontalBoxLayout>());
+        hardness_container->set_layout<GUI::HorizontalBoxLayout>();
         hardness_container->set_fixed_height(20);
         hardness_container->set_visible(m_mode == GradientMode::Radial);
 
@@ -294,7 +294,7 @@ ErrorOr<GUI::Widget*> GradientTool::get_properties_widget()
 
         auto button_container = TRY(properties_widget->try_add<GUI::Widget>());
         button_container->set_fixed_height(22);
-        TRY(button_container->try_set_layout<GUI::HorizontalBoxLayout>());
+        button_container->set_layout<GUI::HorizontalBoxLayout>();
         button_container->add_spacer().release_value_but_fixme_should_propagate_errors();
 
         auto apply_button = TRY(button_container->try_add<GUI::DialogButton>("Apply"_string));

Userland/Applications/PixelPaint/Tools/GuideTool.cpp

@@ -180,11 +180,11 @@ ErrorOr<GUI::Widget*> GuideTool::get_properties_widget()
 {
     if (!m_properties_widget) {
         auto properties_widget = TRY(GUI::Widget::try_create());
-        (void)TRY(properties_widget->try_set_layout<GUI::VerticalBoxLayout>());
+        properties_widget->set_layout<GUI::VerticalBoxLayout>();
 
         auto snapping_container = TRY(properties_widget->try_add<GUI::Widget>());
         snapping_container->set_fixed_height(20);
-        (void)TRY(snapping_container->try_set_layout<GUI::HorizontalBoxLayout>());
+        snapping_container->set_layout<GUI::HorizontalBoxLayout>();
 
         auto snapping_label = TRY(snapping_container->try_add<GUI::Label>("Snap offset:"_string));
         snapping_label->set_text_alignment(Gfx::TextAlignment::CenterLeft);

Userland/Applications/PixelPaint/Tools/LassoSelectTool.cpp

@@ -161,11 +161,11 @@ ErrorOr<GUI::Widget*> LassoSelectTool::get_properties_widget()
     }
 
     auto properties_widget = TRY(GUI::Widget::try_create());
-    (void)TRY(properties_widget->try_set_layout<GUI::VerticalBoxLayout>());
+    properties_widget->set_layout<GUI::VerticalBoxLayout>();
 
     auto mode_container = TRY(properties_widget->try_add<GUI::Widget>());
     mode_container->set_fixed_height(20);
-    (void)TRY(mode_container->try_set_layout<GUI::HorizontalBoxLayout>());
+    mode_container->set_layout<GUI::HorizontalBoxLayout>();
 
     auto mode_label = TRY(mode_container->try_add<GUI::Label>());
     mode_label->set_text("Mode:"_string);

Userland/Applications/PixelPaint/Tools/LineTool.cpp

@@ -123,11 +123,11 @@ ErrorOr<GUI::Widget*> LineTool::get_properties_widget()
 {
     if (!m_properties_widget) {
         auto properties_widget = TRY(GUI::Widget::try_create());
-        (void)TRY(properties_widget->try_set_layout<GUI::VerticalBoxLayout>());
+        properties_widget->set_layout<GUI::VerticalBoxLayout>();
 
         auto thickness_container = TRY(properties_widget->try_add<GUI::Widget>());
         thickness_container->set_fixed_height(20);
-        (void)TRY(thickness_container->try_set_layout<GUI::HorizontalBoxLayout>());
+        thickness_container->set_layout<GUI::HorizontalBoxLayout>();
 
         auto thickness_label = TRY(thickness_container->try_add<GUI::Label>("Thickness:"_string));
         thickness_label->set_text_alignment(Gfx::TextAlignment::CenterLeft);
@@ -144,7 +144,7 @@ ErrorOr<GUI::Widget*> LineTool::get_properties_widget()
 
         auto mode_container = TRY(properties_widget->try_add<GUI::Widget>());
         mode_container->set_fixed_height(20);
-        (void)TRY(mode_container->try_set_layout<GUI::HorizontalBoxLayout>());
+        mode_container->set_layout<GUI::HorizontalBoxLayout>();
 
         auto mode_label = TRY(mode_container->try_add<GUI::Label>("Mode:"_string));
         mode_label->set_text_alignment(Gfx::TextAlignment::CenterLeft);

Userland/Applications/PixelPaint/Tools/MoveTool.cpp

@@ -293,17 +293,17 @@ ErrorOr<GUI::Widget*> MoveTool::get_properties_widget()
 {
     if (!m_properties_widget) {
         auto properties_widget = TRY(GUI::Widget::try_create());
-        (void)TRY(properties_widget->try_set_layout<GUI::VerticalBoxLayout>());
+        properties_widget->set_layout<GUI::VerticalBoxLayout>();
 
         auto selection_mode_container = TRY(properties_widget->try_add<GUI::Widget>());
-        (void)TRY(selection_mode_container->try_set_layout<GUI::HorizontalBoxLayout>());
+        selection_mode_container->set_layout<GUI::HorizontalBoxLayout>();
         selection_mode_container->set_fixed_height(46);
         auto selection_mode_label = TRY(selection_mode_container->try_add<GUI::Label>("Selection Mode:"_string));
         selection_mode_label->set_text_alignment(Gfx::TextAlignment::CenterLeft);
         selection_mode_label->set_fixed_size(80, 40);
 
         auto mode_radio_container = TRY(selection_mode_container->try_add<GUI::Widget>());
-        (void)TRY(mode_radio_container->try_set_layout<GUI::VerticalBoxLayout>());
+        mode_radio_container->set_layout<GUI::VerticalBoxLayout>();
         m_selection_mode_foreground = TRY(mode_radio_container->try_add<GUI::RadioButton>("Foreground"_string));
 
         m_selection_mode_active = TRY(mode_radio_container->try_add<GUI::RadioButton>("Active Layer"_string));

Userland/Applications/PixelPaint/Tools/PenTool.cpp

@@ -39,11 +39,11 @@ ErrorOr<GUI::Widget*> PenTool::get_properties_widget()
 {
     if (!m_properties_widget) {
         auto properties_widget = TRY(GUI::Widget::try_create());
-        (void)TRY(properties_widget->try_set_layout<GUI::VerticalBoxLayout>());
+        properties_widget->set_layout<GUI::VerticalBoxLayout>();
 
         auto size_container = TRY(properties_widget->try_add<GUI::Widget>());
         size_container->set_fixed_height(20);
-        (void)TRY(size_container->try_set_layout<GUI::HorizontalBoxLayout>());
+        size_container->set_layout<GUI::HorizontalBoxLayout>();
 
         auto size_label = TRY(size_container->try_add<GUI::Label>("Thickness:"_string));
         size_label->set_text_alignment(Gfx::TextAlignment::CenterLeft);

Userland/Applications/PixelPaint/Tools/PickerTool.cpp

@@ -45,7 +45,7 @@ ErrorOr<GUI::Widget*> PickerTool::get_properties_widget()
 {
     if (!m_properties_widget) {
         auto properties_widget = TRY(GUI::Widget::try_create());
-        (void)TRY(properties_widget->try_set_layout<GUI::VerticalBoxLayout>());
+        properties_widget->set_layout<GUI::VerticalBoxLayout>();
 
         auto sample_checkbox = TRY(properties_widget->try_add<GUI::CheckBox>("Sample all layers"_string));
         sample_checkbox->set_checked(m_sample_all_layers);

Userland/Applications/PixelPaint/Tools/PolygonalSelectTool.cpp

@@ -190,11 +190,11 @@ ErrorOr<GUI::Widget*> PolygonalSelectTool::get_properties_widget()
         return m_properties_widget.ptr();
 
     auto properties_widget = TRY(GUI::Widget::try_create());
-    (void)TRY(properties_widget->try_set_layout<GUI::VerticalBoxLayout>());
+    properties_widget->set_layout<GUI::VerticalBoxLayout>();
 
     auto mode_container = TRY(properties_widget->try_add<GUI::Widget>());
     mode_container->set_fixed_height(20);
-    (void)TRY(mode_container->try_set_layout<GUI::HorizontalBoxLayout>());
+    mode_container->set_layout<GUI::HorizontalBoxLayout>();
 
     auto mode_label = TRY(mode_container->try_add<GUI::Label>());
     mode_label->set_text("Mode:"_string);

Userland/Applications/PixelPaint/Tools/RectangleSelectTool.cpp

@@ -158,11 +158,11 @@ ErrorOr<GUI::Widget*> RectangleSelectTool::get_properties_widget()
     }
 
     auto properties_widget = TRY(GUI::Widget::try_create());
-    (void)TRY(properties_widget->try_set_layout<GUI::VerticalBoxLayout>());
+    properties_widget->set_layout<GUI::VerticalBoxLayout>();
 
     auto feather_container = TRY(properties_widget->try_add<GUI::Widget>());
     feather_container->set_fixed_height(20);
-    (void)TRY(feather_container->try_set_layout<GUI::HorizontalBoxLayout>());
+    feather_container->set_layout<GUI::HorizontalBoxLayout>();
 
     auto feather_label = TRY(feather_container->try_add<GUI::Label>());
     feather_label->set_text("Feather:"_string);
@@ -181,7 +181,7 @@ ErrorOr<GUI::Widget*> RectangleSelectTool::get_properties_widget()
 
     auto mode_container = TRY(properties_widget->try_add<GUI::Widget>());
     mode_container->set_fixed_height(20);
-    (void)TRY(mode_container->try_set_layout<GUI::HorizontalBoxLayout>());
+    mode_container->set_layout<GUI::HorizontalBoxLayout>();
 
     auto mode_label = TRY(mode_container->try_add<GUI::Label>());
     mode_label->set_text("Mode:"_string);

Userland/Applications/PixelPaint/Tools/RectangleTool.cpp

@@ -144,11 +144,11 @@ ErrorOr<GUI::Widget*> RectangleTool::get_properties_widget()
 {
     if (!m_properties_widget) {
         auto properties_widget = TRY(GUI::Widget::try_create());
-        (void)TRY(properties_widget->try_set_layout<GUI::VerticalBoxLayout>());
+        properties_widget->set_layout<GUI::VerticalBoxLayout>();
 
         auto thickness_or_radius_container = TRY(properties_widget->try_add<GUI::Widget>());
         thickness_or_radius_container->set_fixed_height(20);
-        (void)TRY(thickness_or_radius_container->try_set_layout<GUI::HorizontalBoxLayout>());
+        thickness_or_radius_container->set_layout<GUI::HorizontalBoxLayout>();
 
         auto thickness_or_radius_label = TRY(thickness_or_radius_container->try_add<GUI::Label>());
         thickness_or_radius_label->set_text_alignment(Gfx::TextAlignment::CenterLeft);
@@ -180,13 +180,13 @@ ErrorOr<GUI::Widget*> RectangleTool::get_properties_widget()
 
         auto mode_container = TRY(properties_widget->try_add<GUI::Widget>());
         mode_container->set_fixed_height(90);
-        (void)TRY(mode_container->try_set_layout<GUI::HorizontalBoxLayout>());
+        mode_container->set_layout<GUI::HorizontalBoxLayout>();
         auto mode_label = TRY(mode_container->try_add<GUI::Label>("Mode:"_string));
         mode_label->set_text_alignment(Gfx::TextAlignment::CenterLeft);
         mode_label->set_fixed_size(30, 20);
 
         auto mode_radio_container = TRY(mode_container->try_add<GUI::Widget>());
-        (void)TRY(mode_radio_container->try_set_layout<GUI::VerticalBoxLayout>());
+        mode_radio_container->set_layout<GUI::VerticalBoxLayout>();
         auto outline_mode_radio = TRY(mode_radio_container->try_add<GUI::RadioButton>("Outline"_string));
         auto fill_mode_radio = TRY(mode_radio_container->try_add<GUI::RadioButton>("Fill"_string));
         auto gradient_mode_radio = TRY(mode_radio_container->try_add<GUI::RadioButton>("Gradient"_string));
@@ -213,7 +213,7 @@ ErrorOr<GUI::Widget*> RectangleTool::get_properties_widget()
         outline_mode_radio->set_checked(true);
 
         auto mode_extras_container = TRY(mode_container->try_add<GUI::Widget>());
-        (void)TRY(mode_extras_container->try_set_layout<GUI::VerticalBoxLayout>());
+        mode_extras_container->set_layout<GUI::VerticalBoxLayout>();
 
         auto aa_enable_checkbox = TRY(mode_extras_container->try_add<GUI::CheckBox>("Anti-alias"_string));
         aa_enable_checkbox->on_checked = [this](bool checked) {
@@ -222,7 +222,7 @@ ErrorOr<GUI::Widget*> RectangleTool::get_properties_widget()
         aa_enable_checkbox->set_checked(true);
 
         auto aspect_container = TRY(mode_extras_container->try_add<GUI::Widget>());
-        (void)TRY(aspect_container->try_set_layout<GUI::VerticalBoxLayout>());
+        aspect_container->set_layout<GUI::VerticalBoxLayout>();
         aspect_container->set_fixed_width(75);
 
         auto aspect_label = TRY(aspect_container->try_add<GUI::Label>("Aspect Ratio:"_string));
@@ -231,7 +231,7 @@ ErrorOr<GUI::Widget*> RectangleTool::get_properties_widget()
 
         auto aspect_fields_container = TRY(aspect_container->try_add<GUI::Widget>());
         aspect_fields_container->set_fixed_width(75);
-        (void)TRY(aspect_fields_container->try_set_layout<GUI::HorizontalBoxLayout>());
+        aspect_fields_container->set_layout<GUI::HorizontalBoxLayout>();
 
         m_aspect_w_textbox = TRY(aspect_fields_container->try_add<GUI::TextBox>());
         m_aspect_w_textbox->set_fixed_height(20);

Userland/Applications/PixelPaint/Tools/SprayTool.cpp

@@ -94,11 +94,11 @@ ErrorOr<GUI::Widget*> SprayTool::get_properties_widget()
 {
     if (!m_properties_widget) {
         auto properties_widget = TRY(GUI::Widget::try_create());
-        (void)TRY(properties_widget->try_set_layout<GUI::VerticalBoxLayout>());
+        properties_widget->set_layout<GUI::VerticalBoxLayout>();
 
         auto size_container = TRY(properties_widget->try_add<GUI::Widget>());
         size_container->set_fixed_height(20);
-        (void)TRY(size_container->try_set_layout<GUI::HorizontalBoxLayout>());
+        size_container->set_layout<GUI::HorizontalBoxLayout>();
 
         auto size_label = TRY(size_container->try_add<GUI::Label>("Size:"_string));
         size_label->set_text_alignment(Gfx::TextAlignment::CenterLeft);
@@ -115,7 +115,7 @@ ErrorOr<GUI::Widget*> SprayTool::get_properties_widget()
 
         auto density_container = TRY(properties_widget->try_add<GUI::Widget>());
         density_container->set_fixed_height(20);
-        (void)TRY(density_container->try_set_layout<GUI::HorizontalBoxLayout>());
+        density_container->set_layout<GUI::HorizontalBoxLayout>();
 
         auto density_label = TRY(density_container->try_add<GUI::Label>("Density:"_string));
         density_label->set_text_alignment(Gfx::TextAlignment::CenterLeft);

Userland/Applications/PixelPaint/Tools/TextTool.cpp

@@ -109,7 +109,7 @@ ErrorOr<GUI::Widget*> TextTool::get_properties_widget()
         return m_properties_widget.ptr();
 
     auto properties_widget = TRY(GUI::Widget::try_create());
-    (void)TRY(properties_widget->try_set_layout<GUI::VerticalBoxLayout>());
+    properties_widget->set_layout<GUI::VerticalBoxLayout>();
 
     auto font_header = TRY(properties_widget->try_add<GUI::Label>("Current Font:"_string));
     font_header->set_text_alignment(Gfx::TextAlignment::CenterLeft);

Userland/Applications/PixelPaint/Tools/WandSelectTool.cpp

@@ -73,11 +73,11 @@ ErrorOr<GUI::Widget*> WandSelectTool::get_properties_widget()
     }
 
     auto properties_widget = TRY(GUI::Widget::try_create());
-    (void)TRY(properties_widget->try_set_layout<GUI::VerticalBoxLayout>());
+    properties_widget->set_layout<GUI::VerticalBoxLayout>();
 
     auto threshold_container = TRY(properties_widget->try_add<GUI::Widget>());
     threshold_container->set_fixed_height(20);
-    (void)TRY(threshold_container->try_set_layout<GUI::HorizontalBoxLayout>());
+    threshold_container->set_layout<GUI::HorizontalBoxLayout>();
 
     auto threshold_label = TRY(threshold_container->try_add<GUI::Label>("Threshold:"_string));
     threshold_label->set_text_alignment(Gfx::TextAlignment::CenterLeft);
@@ -94,7 +94,7 @@ ErrorOr<GUI::Widget*> WandSelectTool::get_properties_widget()
 
     auto mode_container = TRY(properties_widget->try_add<GUI::Widget>());
     mode_container->set_fixed_height(20);
-    (void)TRY(mode_container->try_set_layout<GUI::HorizontalBoxLayout>());
+    mode_container->set_layout<GUI::HorizontalBoxLayout>();
 
     auto mode_label = TRY(mode_container->try_add<GUI::Label>());
     mode_label->set_text("Mode:"_string);

Userland/Applications/PixelPaint/Tools/ZoomTool.cpp

@@ -27,11 +27,11 @@ ErrorOr<GUI::Widget*> ZoomTool::get_properties_widget()
 {
     if (!m_properties_widget) {
         auto properties_widget = TRY(GUI::Widget::try_create());
-        (void)TRY(properties_widget->try_set_layout<GUI::VerticalBoxLayout>());
+        properties_widget->set_layout<GUI::VerticalBoxLayout>();
 
         auto sensitivity_container = TRY(properties_widget->try_add<GUI::Widget>());
         sensitivity_container->set_fixed_height(20);
-        (void)TRY(sensitivity_container->try_set_layout<GUI::HorizontalBoxLayout>());
+        sensitivity_container->set_layout<GUI::HorizontalBoxLayout>();
 
         auto sensitivity_label = TRY(sensitivity_container->try_add<GUI::Label>("Sensitivity:"_string));
         sensitivity_label->set_text_alignment(Gfx::TextAlignment::CenterLeft);

Userland/Applications/SpaceAnalyzer/ProgressWindow.cpp

@@ -16,7 +16,7 @@ ErrorOr<NonnullRefPtr<ProgressWindow>> ProgressWindow::try_create(StringView tit
 
     auto main_widget = TRY(window->set_main_widget<GUI::Widget>());
     main_widget->set_fill_with_background_color(true);
-    TRY(main_widget->try_set_layout<GUI::VerticalBoxLayout>());
+    main_widget->set_layout<GUI::VerticalBoxLayout>();
 
     auto label = TRY(main_widget->try_add<GUI::Label>("Analyzing storage space..."_string));
     label->set_fixed_height(22);

Userland/Applications/SystemMonitor/ProcessFileDescriptorMapWidget.cpp

@@ -18,7 +18,7 @@ namespace SystemMonitor {
 ErrorOr<NonnullRefPtr<ProcessFileDescriptorMapWidget>> ProcessFileDescriptorMapWidget::try_create()
 {
     auto widget = TRY(adopt_nonnull_ref_or_enomem(new (nothrow) ProcessFileDescriptorMapWidget()));
-    TRY(widget->try_set_layout<GUI::VerticalBoxLayout>(4));
+    widget->set_layout<GUI::VerticalBoxLayout>(4);
     widget->m_table_view = TRY(widget->try_add<GUI::TableView>());
 
     Vector<GUI::JsonArrayModel::FieldSpec> pid_fds_fields;

Userland/Applications/SystemMonitor/ProcessMemoryMapWidget.cpp

@@ -52,7 +52,7 @@ public:
 ErrorOr<NonnullRefPtr<ProcessMemoryMapWidget>> ProcessMemoryMapWidget::try_create()
 {
     auto widget = TRY(adopt_nonnull_ref_or_enomem(new (nothrow) ProcessMemoryMapWidget()));
-    TRY(widget->try_set_layout<GUI::VerticalBoxLayout>(4));
+    widget->set_layout<GUI::VerticalBoxLayout>(4);
     widget->m_table_view = TRY(widget->try_add<GUI::TableView>());
 
     Vector<GUI::JsonArrayModel::FieldSpec> pid_vm_fields;

Userland/Applications/SystemMonitor/ProcessStateWidget.cpp

@@ -96,7 +96,7 @@ private:
 ErrorOr<NonnullRefPtr<ProcessStateWidget>> ProcessStateWidget::try_create()
 {
     auto widget = TRY(adopt_nonnull_ref_or_enomem(new (nothrow) ProcessStateWidget()));
-    TRY(widget->try_set_layout<GUI::VerticalBoxLayout>(4));
+    widget->set_layout<GUI::VerticalBoxLayout>(4);
     widget->m_table_view = TRY(widget->try_add<GUI::TableView>());
     widget->m_table_view->set_model(TRY(try_make_ref_counted<ProcessStateModel>(ProcessModel::the(), 0)));
     widget->m_table_view->column_header().set_visible(false);

Userland/Applications/SystemMonitor/ProcessUnveiledPathsWidget.cpp

@@ -19,7 +19,7 @@ namespace SystemMonitor {
 ErrorOr<NonnullRefPtr<ProcessUnveiledPathsWidget>> ProcessUnveiledPathsWidget::try_create()
 {
     auto widget = TRY(adopt_nonnull_ref_or_enomem(new (nothrow) ProcessUnveiledPathsWidget()));
-    TRY(widget->try_set_layout<GUI::VerticalBoxLayout>(4));
+    widget->set_layout<GUI::VerticalBoxLayout>(4);
     widget->m_table_view = TRY(widget->try_add<GUI::TableView>());
 
     Vector<GUI::JsonArrayModel::FieldSpec> pid_unveil_fields;

Userland/Applications/SystemMonitor/ThreadStackWidget.cpp

@@ -74,7 +74,7 @@ private:
 ErrorOr<NonnullRefPtr<ThreadStackWidget>> ThreadStackWidget::try_create()
 {
     auto widget = TRY(adopt_nonnull_ref_or_enomem(new (nothrow) ThreadStackWidget()));
-    TRY(widget->try_set_layout<GUI::VerticalBoxLayout>(4));
+    widget->set_layout<GUI::VerticalBoxLayout>(4);
     widget->m_stack_table = TRY(widget->try_add<GUI::TableView>());
     widget->m_stack_table->set_model(TRY(try_make_ref_counted<ThreadStackModel>()));
     return widget;

Userland/Applications/SystemMonitor/main.cpp

@@ -578,7 +578,7 @@ ErrorOr<void> build_performance_tab(GUI::Widget& graphs_container)
     Vector<SystemMonitor::GraphWidget&> cpu_graphs;
     for (auto row = 0u; row < cpu_graph_rows; ++row) {
         auto cpu_graph_row = TRY(cpu_graph_group_box.try_add<GUI::Widget>());
-        TRY(cpu_graph_row->try_set_layout<GUI::HorizontalBoxLayout>(6));
+        cpu_graph_row->set_layout<GUI::HorizontalBoxLayout>(6);
         cpu_graph_row->set_fixed_height(108);
         for (auto i = 0u; i < cpu_graphs_per_row; ++i) {
             auto cpu_graph = TRY(cpu_graph_row->try_add<SystemMonitor::GraphWidget>());

Userland/Applications/Terminal/main.cpp

@@ -167,10 +167,10 @@ static ErrorOr<NonnullRefPtr<GUI::Window>> create_find_window(VT::TerminalWidget
     auto main_widget = TRY(window->set_main_widget<GUI::Widget>());
     main_widget->set_fill_with_background_color(true);
     main_widget->set_background_role(ColorRole::Button);
-    TRY(main_widget->try_set_layout<GUI::VerticalBoxLayout>(4));
+    main_widget->set_layout<GUI::VerticalBoxLayout>(4);
 
     auto find = TRY(main_widget->try_add<GUI::Widget>());
-    TRY(find->try_set_layout<GUI::HorizontalBoxLayout>(4));
+    find->set_layout<GUI::HorizontalBoxLayout>(4);
     find->set_fixed_height(30);
 
     auto find_textbox = TRY(find->try_add<GUI::TextBox>());

Userland/Applications/ThemeEditor/MainWidget.cpp

@@ -466,12 +466,12 @@ ErrorOr<void> MainWidget::add_property_tab(PropertyTab const& property_tab)
 
     auto properties_list = TRY(GUI::Widget::try_create());
     scrollable_container->set_widget(properties_list);
-    TRY(properties_list->try_set_layout<GUI::VerticalBoxLayout>(GUI::Margins { 8 }, 12));
+    properties_list->set_layout<GUI::VerticalBoxLayout>(GUI::Margins { 8 }, 12);
 
     for (auto const& group : property_tab.property_groups) {
         NonnullRefPtr<GUI::GroupBox> group_box = TRY(properties_list->try_add<GUI::GroupBox>(group.title));
         // 1px less on the left makes the text line up with the group title.
-        TRY(group_box->try_set_layout<GUI::VerticalBoxLayout>(GUI::Margins { 8, 8, 8, 7 }, 12));
+        group_box->set_layout<GUI::VerticalBoxLayout>(GUI::Margins { 8, 8, 8, 7 }, 12);
         group_box->set_preferred_height(GUI::SpecialDimension::Fit);
 
         for (auto const& property : group.properties) {

Userland/Demos/CatDog/main.cpp

@@ -42,7 +42,7 @@ ErrorOr<int> serenity_main(Main::Arguments arguments)
 
     auto catdog_widget = TRY(CatDog::create());
     window->set_main_widget(catdog_widget);
-    TRY(catdog_widget->try_set_layout<GUI::VerticalBoxLayout>(GUI::Margins {}, 0));
+    catdog_widget->set_layout<GUI::VerticalBoxLayout>(GUI::Margins {}, 0);
 
     auto context_menu = TRY(GUI::Menu::try_create());
     TRY(context_menu->try_add_action(GUI::CommonActions::make_about_action("CatDog Demo", app_icon, window)));
@@ -62,7 +62,7 @@ ErrorOr<int> serenity_main(Main::Arguments arguments)
     advice_window->set_alpha_hit_threshold(1.0f);
 
     auto advice_widget = TRY(advice_window->set_main_widget<SpeechBubble>(catdog_widget));
-    TRY(advice_widget->try_set_layout<GUI::VerticalBoxLayout>(GUI::Margins {}, 0));
+    advice_widget->set_layout<GUI::VerticalBoxLayout>(GUI::Margins {}, 0);
 
     auto advice_timer = TRY(Core::Timer::create_single_shot(15'000, [&] {
         window->move_to_front();

Userland/Demos/ModelGallery/GalleryWidget.cpp

@@ -13,7 +13,7 @@ GalleryWidget::GalleryWidget()
     set_layout<GUI::VerticalBoxLayout>();
 
     auto& inner_widget = add<GUI::Widget>();
-    inner_widget.try_set_layout<GUI::VerticalBoxLayout>(4).release_value_but_fixme_should_propagate_errors();
+    inner_widget.set_layout<GUI::VerticalBoxLayout>(4);
 
     m_tab_widget = inner_widget.try_add<GUI::TabWidget>().release_value_but_fixme_should_propagate_errors();
     m_statusbar = add<GUI::Statusbar>();

Userland/DevTools/Profiler/main.cpp

@@ -132,7 +132,7 @@ ErrorOr<int> serenity_main(Main::Arguments arguments)
     auto tab_widget = TRY(main_splitter->try_add<GUI::TabWidget>());
 
     auto tree_tab = TRY(tab_widget->try_add_tab<GUI::Widget>("Call Tree"_string));
-    TRY(tree_tab->try_set_layout<GUI::VerticalBoxLayout>(4));
+    tree_tab->set_layout<GUI::VerticalBoxLayout>(4);
     auto bottom_splitter = TRY(tree_tab->try_add<GUI::VerticalSplitter>());
 
     auto tree_view = TRY(bottom_splitter->try_add<GUI::TreeView>());
@@ -181,7 +181,7 @@ ErrorOr<int> serenity_main(Main::Arguments arguments)
     });
 
     auto samples_tab = TRY(tab_widget->try_add_tab<GUI::Widget>("Samples"_string));
-    TRY(samples_tab->try_set_layout<GUI::VerticalBoxLayout>(4));
+    samples_tab->set_layout<GUI::VerticalBoxLayout>(4);
 
     auto samples_splitter = TRY(samples_tab->try_add<GUI::HorizontalSplitter>());
     auto samples_table_view = TRY(samples_splitter->try_add<GUI::TableView>());
@@ -195,7 +195,7 @@ ErrorOr<int> serenity_main(Main::Arguments arguments)
     };
 
     auto signposts_tab = TRY(tab_widget->try_add_tab<GUI::Widget>("Signposts"_string));
-    TRY(signposts_tab->try_set_layout<GUI::VerticalBoxLayout>(4));
+    signposts_tab->set_layout<GUI::VerticalBoxLayout>(4);
 
     auto signposts_splitter = TRY(signposts_tab->try_add<GUI::HorizontalSplitter>());
     auto signposts_table_view = TRY(signposts_splitter->try_add<GUI::TableView>());
@@ -209,7 +209,7 @@ ErrorOr<int> serenity_main(Main::Arguments arguments)
     };
 
     auto flamegraph_tab = TRY(tab_widget->try_add_tab<GUI::Widget>("Flame Graph"_string));
-    TRY(flamegraph_tab->try_set_layout<GUI::VerticalBoxLayout>(GUI::Margins { 4, 4, 4, 4 }));
+    flamegraph_tab->set_layout<GUI::VerticalBoxLayout>(GUI::Margins { 4, 4, 4, 4 });
 
     auto flamegraph_view = TRY(flamegraph_tab->try_add<FlameGraphView>(profile->model(), ProfileModel::Column::StackFrame, ProfileModel::Column::SampleCount));
 
@@ -257,7 +257,7 @@ ErrorOr<int> serenity_main(Main::Arguments arguments)
     flamegraph_view->on_hover_change = [&] { statusbar_update(); };
 
     auto filesystem_events_tab = TRY(tab_widget->try_add_tab<GUI::Widget>("Filesystem events"_string));
-    TRY(filesystem_events_tab->try_set_layout<GUI::VerticalBoxLayout>(4));
+    filesystem_events_tab->set_layout<GUI::VerticalBoxLayout>(4);
 
     auto filesystem_events_tree_view = TRY(filesystem_events_tab->try_add<GUI::TreeView>());
     filesystem_events_tree_view->set_should_fill_selected_rows(true);

Userland/Games/GameOfLife/main.cpp

@@ -60,7 +60,7 @@ ErrorOr<int> serenity_main(Main::Arguments arguments)
     main_toolbar.layout()->set_margins({ 0, 6 });
 
     auto& board_widget_container = *main_widget->find_descendant_of_type_named<GUI::Widget>("board_widget_container");
-    TRY(board_widget_container.try_set_layout<GUI::VerticalBoxLayout>(GUI::Margins {}, 0));
+    board_widget_container.set_layout<GUI::VerticalBoxLayout>(GUI::Margins {}, 0);
     auto board_widget = TRY(board_widget_container.try_add<BoardWidget>(board_rows, board_columns));
     board_widget->randomize_cells();
 

Userland/Libraries/LibGUI/InputBox.cpp

@@ -128,12 +128,12 @@ void InputBox::on_done(ExecResult result)
 ErrorOr<void> InputBox::build()
 {
     auto main_widget = TRY(set_main_widget<Widget>());
-    TRY(main_widget->try_set_layout<VerticalBoxLayout>(6, 6));
+    main_widget->set_layout<VerticalBoxLayout>(6, 6);
     main_widget->set_fill_with_background_color(true);
 
     if (!m_prompt.is_empty()) {
         auto prompt_container = TRY(main_widget->try_add<Widget>());
-        TRY(prompt_container->try_set_layout<HorizontalBoxLayout>(0, 8));
+        prompt_container->set_layout<HorizontalBoxLayout>(0, 8);
         if (m_icon) {
             auto image_widget = TRY(prompt_container->try_add<ImageWidget>());
             image_widget->set_bitmap(m_icon);
@@ -158,7 +158,7 @@ ErrorOr<void> InputBox::build()
     }
 
     auto button_container = TRY(main_widget->try_add<Widget>());
-    TRY(button_container->try_set_layout<HorizontalBoxLayout>(0, 6));
+    button_container->set_layout<HorizontalBoxLayout>(0, 6);
     TRY(button_container->add_spacer());
 
     m_ok_button = TRY(button_container->try_add<DialogButton>("OK"_string));

Userland/Libraries/LibGUI/MessageBox.cpp

@@ -152,11 +152,11 @@ ErrorOr<void> MessageBox::build()
 {
     auto main_widget = TRY(set_main_widget<Widget>());
     main_widget->set_fill_with_background_color(true);
-    TRY(main_widget->try_set_layout<VerticalBoxLayout>(8, 6));
+    main_widget->set_layout<VerticalBoxLayout>(8, 6);
 
     auto message_container = TRY(main_widget->try_add<Widget>());
     auto message_margins = Margins { 8, m_type != Type::None ? 8 : 0 };
-    TRY(message_container->try_set_layout<HorizontalBoxLayout>(message_margins, 8));
+    message_container->set_layout<HorizontalBoxLayout>(message_margins, 8);
 
     if (auto icon = TRY(this->icon()); icon && m_type != Type::None) {
         auto image_widget = TRY(message_container->try_add<ImageWidget>());
@@ -170,7 +170,7 @@ ErrorOr<void> MessageBox::build()
         m_text_label->set_text_alignment(Gfx::TextAlignment::CenterLeft);
 
     auto button_container = TRY(main_widget->try_add<Widget>());
-    TRY(button_container->try_set_layout<HorizontalBoxLayout>(Margins {}, 8));
+    button_container->set_layout<HorizontalBoxLayout>(Margins {}, 8);
 
     auto add_button = [&](String text, ExecResult result) -> ErrorOr<NonnullRefPtr<Button>> {
         auto button = TRY(button_container->try_add<DialogButton>());

Userland/Libraries/LibGUI/PathBreadcrumbbar.cpp

@@ -27,7 +27,7 @@ ErrorOr<NonnullRefPtr<PathBreadcrumbbar>> PathBreadcrumbbar::try_create()
     auto breadcrumbbar = TRY(Breadcrumbbar::try_create());
 
     auto path_breadcrumbbar = TRY(adopt_nonnull_ref_or_enomem(new (nothrow) PathBreadcrumbbar(*location_text_box, *breadcrumbbar)));
-    (void)TRY(path_breadcrumbbar->try_set_layout<GUI::VerticalBoxLayout>());
+    path_breadcrumbbar->set_layout<GUI::VerticalBoxLayout>();
     TRY(path_breadcrumbbar->try_add_child(location_text_box));
     TRY(path_breadcrumbbar->try_add_child(breadcrumbbar));
 

Userland/Libraries/LibGUI/SettingsWindow.cpp

@@ -34,13 +34,13 @@ ErrorOr<NonnullRefPtr<SettingsWindow>> SettingsWindow::create(DeprecatedString t
 
     auto main_widget = TRY(window->set_main_widget<GUI::Widget>());
     main_widget->set_fill_with_background_color(true);
-    TRY(main_widget->try_set_layout<GUI::VerticalBoxLayout>(4, 6));
+    main_widget->set_layout<GUI::VerticalBoxLayout>(4, 6);
 
     window->m_tab_widget = TRY(main_widget->try_add<GUI::TabWidget>());
 
     auto button_container = TRY(main_widget->try_add<GUI::Widget>());
     button_container->set_preferred_size({ SpecialDimension::Grow, SpecialDimension::Fit });
-    TRY(button_container->try_set_layout<GUI::HorizontalBoxLayout>(GUI::Margins {}, 6));
+    button_container->set_layout<GUI::HorizontalBoxLayout>(GUI::Margins {}, 6);
 
     if (show_defaults_button == ShowDefaultsButton::Yes) {
         window->m_reset_button = TRY(button_container->try_add<GUI::DialogButton>("Defaults"_string));

Userland/Libraries/LibGUI/Widget.h

@@ -80,14 +80,6 @@ public:
     Layout const* layout() const { return m_layout.ptr(); }
     void set_layout(NonnullRefPtr<Layout>);
 
-    template<class T, class... Args>
-    ErrorOr<void> try_set_layout(Args&&... args)
-    {
-        auto layout = TRY(T::try_create(forward<Args>(args)...));
-        set_layout(*layout);
-        return {};
-    }
-
     template<class T, class... Args>
     inline void set_layout(Args&&... args)
     {

Userland/Libraries/LibGUI/Wizards/CoverWizardPage.cpp

@@ -24,13 +24,13 @@ ErrorOr<void> CoverWizardPage::build(String title, String subtitle)
 {
     set_fill_with_background_color(true);
     set_background_role(Gfx::ColorRole::Base);
-    TRY(try_set_layout<HorizontalBoxLayout>());
+    set_layout<HorizontalBoxLayout>();
     m_banner_image_widget = TRY(try_add<ImageWidget>());
     m_banner_image_widget->set_fixed_size(160, 315);
     m_banner_image_widget->load_from_file("/res/graphics/wizard-banner-simple.png"sv);
 
     m_content_widget = TRY(try_add<Widget>());
-    TRY(m_content_widget->try_set_layout<VerticalBoxLayout>(20));
+    m_content_widget->set_layout<VerticalBoxLayout>(20);
 
     m_header_label = TRY(m_content_widget->try_add<Label>(move(title)));
     m_header_label->set_font(Gfx::FontDatabase::the().get("Pebbleton", 14, 700, Gfx::FontWidth::Normal, 0));

Userland/Libraries/LibGUI/Wizards/WizardDialog.cpp

@@ -27,17 +27,17 @@ ErrorOr<void> WizardDialog::build()
 {
     auto main_widget = TRY(set_main_widget<Widget>());
     main_widget->set_fill_with_background_color(true);
-    TRY(main_widget->try_set_layout<VerticalBoxLayout>(Margins {}, 0));
+    main_widget->set_layout<VerticalBoxLayout>(Margins {}, 0);
 
     m_page_container_widget = TRY(main_widget->try_add<Widget>());
     m_page_container_widget->set_fixed_size(500, 315);
-    TRY(m_page_container_widget->try_set_layout<VerticalBoxLayout>());
+    m_page_container_widget->set_layout<VerticalBoxLayout>();
 
     auto separator = TRY(main_widget->try_add<SeparatorWidget>(Gfx::Orientation::Horizontal));
     separator->set_fixed_height(2);
 
     auto nav_container_widget = TRY(main_widget->try_add<Widget>());
-    TRY(nav_container_widget->try_set_layout<HorizontalBoxLayout>(Margins { 0, 10 }, 0));
+    nav_container_widget->set_layout<HorizontalBoxLayout>(Margins { 0, 10 }, 0);
     nav_container_widget->set_fixed_height(42);
     TRY(nav_container_widget->add_spacer());
 

Userland/Libraries/LibGUI/Wizards/WizardPage.cpp

@@ -23,14 +23,14 @@ ErrorOr<NonnullRefPtr<WizardPage>> WizardPage::create(StringView title, StringVi
 
 ErrorOr<void> WizardPage::build(String title, String subtitle)
 {
-    TRY(try_set_layout<VerticalBoxLayout>(Margins {}, 0));
+    set_layout<VerticalBoxLayout>(Margins {}, 0);
 
     auto header_widget = TRY(try_add<Widget>());
     header_widget->set_fill_with_background_color(true);
     header_widget->set_background_role(Gfx::ColorRole::Base);
     header_widget->set_fixed_height(58);
 
-    TRY(header_widget->try_set_layout<VerticalBoxLayout>(Margins { 15, 30, 0 }));
+    header_widget->set_layout<VerticalBoxLayout>(Margins { 15, 30, 0 });
     m_title_label = TRY(header_widget->try_add<Label>(move(title)));
     m_title_label->set_font(Gfx::FontDatabase::default_font().bold_variant());
     m_title_label->set_fixed_height(m_title_label->font().pixel_size_rounded_up() + 2);
@@ -45,7 +45,7 @@ ErrorOr<void> WizardPage::build(String title, String subtitle)
     separator->set_fixed_height(2);
 
     m_body_widget = TRY(try_add<Widget>());
-    TRY(m_body_widget->try_set_layout<VerticalBoxLayout>(20));
+    m_body_widget->set_layout<VerticalBoxLayout>(20);
 
     return {};
 }

Userland/Services/Taskbar/TaskbarWindow.cpp

@@ -73,13 +73,13 @@ TaskbarWindow::TaskbarWindow()
 ErrorOr<void> TaskbarWindow::populate_taskbar()
 {
     auto main_widget = TRY(set_main_widget<TaskbarWidget>());
-    TRY(main_widget->try_set_layout<GUI::HorizontalBoxLayout>(GUI::Margins { 2, 3, 0, 3 }));
+    main_widget->set_layout<GUI::HorizontalBoxLayout>(GUI::Margins { 2, 3, 0, 3 });
 
     m_quick_launch = TRY(Taskbar::QuickLaunchWidget::create());
     TRY(main_widget->try_add_child(*m_quick_launch));
 
     m_task_button_container = TRY(main_widget->try_add<GUI::Widget>());
-    TRY(m_task_button_container->try_set_layout<GUI::HorizontalBoxLayout>(GUI::Margins {}, 3));
+    m_task_button_container->set_layout<GUI::HorizontalBoxLayout>(GUI::Margins {}, 3);
 
     m_default_icon = TRY(Gfx::Bitmap::load_from_file("/res/icons/16x16/window.png"sv));