More work on graphics config menu, improved focus handling in UI, fixed scissor bug in UI rendering

assets/config_menu.rml

@@ -23,7 +23,7 @@
     		text-align: center;
 		}
 		#tab_graphics:selected {
-			nav-down:#ar_original;
+			nav-down:#res_auto;
 		}
 	</style>
 </head>
@@ -35,29 +35,74 @@
 					<tab id="tab_graphics" autofocus>Graphics</tab>
 					<panel>
 						<form>
-							<div style="width:700dp; border-radius:0dp; height:auto; padding:16dp; text-align:left; margin-left:auto; margin-right:auto; font-effect: outline(2dp black); font-size:24dp; background:rgba(50,50,50,200);">
+							<div class="option_container">
+								<div class="option_row">
+									<div class="option">
+										<label style="padding:4dp;">Resolution</label><br/>
+										<hr/>
+										<div class="option_list">
+											<input type="radio" name="resolution" id="res_original"/>
+											<label for="res_original">Original</label>
+											<input type="radio" name="resolution" id="res_2x" style="nav-down:#ar_expand"/>
+											<label for="res_2x">Original 2x</label>
+											<input type="radio" name="resolution" id="res_auto" style="nav-down:#ar_expand" checked="checked"/>
+											<label for="res_auto">Auto</label>
+										</div>
+									</div>
+									<div class="option">
+										<label style="padding:4dp;">Window Mode</label><br/>
+										<hr/>
+										<div class="option_list">
+											<input type="radio" name="windowmode" id="wm_windowed" style="nav-down:#msaa_none" checked="checked"/>
+											<label for="wm_windowed">Windowed</label>
+											<input type="radio" name="windowmode" id="wm_fullscreen" style="nav-right:none"/>
+											<label for="wm_fullscreen">Fullscreen</label>
+										</div>
+									</div>
+								</div>
+								<div class="option_row">
+									<div class="option">
 										<label style="padding:4dp;">Aspect Ratio</label><br/>
 										<hr/>
-								<div style="padding:2dp;">
+										<div class="option_list">
-									<input type="radio" name="aspectratio" id="ar_original"/>
+											<input type="radio" name="aspectratio" id="ar_original" style="nav-left:none"/>
 											<label for="ar_original">Original</label>
-									<input type="radio" name="aspectratio" id="ar_expand" checked="checked" style="nav-right:none"/>
+											<input type="radio" name="aspectratio" id="ar_expand" style="nav-up:#res_2x" checked="checked"/>
 											<label for="ar_expand">Expand</label>
 										</div>
-								<br/>
+									</div>
+									<div class="option">
+										<label style="padding:4dp;">MS Anti-Aliasing</label><br/>
+										<hr/>
+										<div class="option_list">
+											<input type="radio" name="antialiasing" id="msaa_none" checked="checked" style="nav-up:#wm_windowed;nav-left:none"/>
+											<label for="msaa_none">None</label>
+											<input type="radio" name="antialiasing" id="msaa_2x"/>
+											<label for="msaa_2x">2x</label>
+											<input type="radio" name="antialiasing" id="msaa_4x"/>
+											<label for="msaa_4x">4x</label>
+											<input type="radio" name="antialiasing" id="msaa_8x" style="nav-right:none"/>
+											<label for="msaa_8x">8x</label>
+										</div>
+									</div>
+								</div>
 								
+								<div class="option_row">
+									<div class="option">
 										<label style="padding:4dp;">Refresh Rate</label><br/>
 										<hr/>
-								<p style="padding:2dp;">
+										<div class="option_list" style="flex-wrap: wrap;">
-									<input type="radio" name="refreshrate" id="rr_original"/>
+											<input type="radio" name="refreshrate" id="rr_original" style="nav-up:#ar_expand"/>
 											<label for="rr_original">Original</label>
-									<input type="radio" name="refreshrate" id="rr_display"/>
+											<input type="radio" name="refreshrate" id="rr_display" style="nav-up:#ar_expand"/>
 											<label for="rr_display">Display</label>
-									<input type="radio" name="refreshrate" id="rr_manual" checked="checked" style="nav-up:#ar_expand;nav-right:none"/>
+											<input type="radio" name="refreshrate" id="rr_manual" checked="checked" style="nav-up:#msaa_none;nav-right:none"/>
 											<label for="rr_manual">Manual</label>
-									<br/>
+											<div style="flex-basis:100%;height:0"/>
-									<input id="rr_manual_input" type="range" min="60" max="1000" style="font:normal;flex:1;nav-up:auto;nav-down:auto;" value="60"/>
+											<input id="rr_manual_input" type="range" min="60" max="1000" style="font:normal;flex:1;nav-up:auto;nav-down:auto;width:100%" value="60"/>
-								</p>
+										</div>
+									</div>
+								</div>
 							</div>
 						</form>
 					</panel>

assets/recomp.rcss

@@ -22,6 +22,39 @@ body {
     tab-index:none;
 } */
 
+div.option_container {
+    display:flex;
+    flex-direction: column;
+    width:850dp;
+    border-radius:0dp;
+    height:auto;
+    padding:16dp;
+    text-align:left;
+    margin-left:auto;
+    margin-right:auto;
+    font-effect: outline(2dp black);
+    font-size:24dp;
+    background:rgba(50,50,50,200);
+}
+
+div.option_row {
+    display:flex;
+    flex-direction: row;
+}
+
+div.option {
+    flex:1;
+    padding:4dp;
+    text-align:center;
+}
+
+div.option_list {
+    padding:2dp;
+    text-align:center;
+    display:flex;
+    justify-content:center;
+}
+
 div#title_bar {
     z-index: 1;
     position: absolute;
@@ -71,7 +104,7 @@ div#content {
 
 p {
     text-align: left;
-    margin-bottom: 4dp;
+    /* margin-bottom: 4dp; */
 }
 
 h1 {
@@ -255,17 +288,18 @@ select selectbox option:hover {
 input.radio,
 input.checkbox {
     /* width: 30dp; */
-    height: 30dp;
+    /* height: 30dp; */
     /* vertical-align: -11dp; */
-    margin-top: 4dp;
+    /* margin-top: 4dp; */
-    margin-bottom: 4dp;
+    /* margin-bottom: 4dp; */
-    flex: 1;
+    flex: 0;
     tab-index:auto;
     focus:auto;
     nav-up:auto;
     nav-down:auto;
     nav-right:auto;
     nav-left:auto;
+    width:0dp;
 }
 
 input.radio + label {
@@ -276,6 +310,8 @@ input.radio + label {
     text-align:center;
     tab-index:none;
     focus:auto;
+    margin-left:10dp;
+    margin-right:10dp;
     /* display:none; */
     /* decorator: image(radio) */
 }
@@ -295,21 +331,11 @@ input.radio:checked + label {
     /* decorator: image(radio-checked) */
 }
 
-input.radio:hover + label {
-    color:#329696;
-    /* background: rgb(150,150,150); */
-}
-
 input.radio:focus + label {
     color:#329696;
     /* background: rgb(150,150,150); */
 }
 
-input.radio:checked:hover + label {
-    border-bottom:1dp;
-    /* background: rgb(150,150,150); */
-}
-
 tabset {
     font:bold;
     margin:1dp;
@@ -332,10 +358,6 @@ tab {
     nav-left:auto;
 }
 
-tab:hover {
-    color:#329696;
-}
-
 tab:selected {
     border-top: 2dp;
     border-color: white;

src/ui/ui_renderer.cpp

@@ -339,7 +339,7 @@ public:
 
         list_->setViewports(RT64::RenderViewport{ 0, 0, float(window_width_), float(window_height_) });
         if (scissor_enabled_) {
-            list_->setScissors(RT64::RenderRect{ scissor_x_, scissor_y_, scissor_width_, scissor_height_ });
+            list_->setScissors(RT64::RenderRect{ scissor_x_, scissor_y_, scissor_width_ + scissor_x_, scissor_height_ + scissor_y_ });
         }
         else {
             list_->setScissors(RT64::RenderRect{ 0, 0, window_width_, window_height_ });
@@ -564,11 +564,34 @@ public:
     }
 };
 
+bool can_focus(Rml::Element* element) {
+    return element->GetProperty(Rml::PropertyId::TabIndex)->Get<Rml::Style::TabIndex>() != Rml::Property(Rml::Style::TabIndex::None);
+}
+
+Rml::Element* get_target(Rml::ElementDocument* document, Rml::Element* element) {
+    // Labels can have targets, so check if this element is a label.
+    if (element->GetTagName() == "label") {
+        // Check if the label has a "for" property.
+        Rml::String for_value = element->GetAttribute<Rml::String>("for", "");
+
+        // If there is a value for the "for" property, find that element and return it if it exists.
+        if (!for_value.empty()) {
+            Rml::Element* target_element = document->GetElementById(for_value);
+            if (target_element) {
+                return target_element;
+            }
+        }
+    }
+    // Return the element directly if no target exists.
+    return element;
+}
+
 struct {
     struct UIRenderContext render;
     class {
         std::unordered_map<recomp::Menu, Rml::ElementDocument*> documents;
         Rml::ElementDocument* current_document;
+        Rml::Element* prev_focused;
     public:
         SystemInterface_SDL system_interface;
         std::unique_ptr<RmlRenderInterface_RT64> render_interface;
@@ -619,6 +642,30 @@ struct {
             documents.emplace(recomp::Menu::Launcher, context->LoadDocument("assets/launcher.rml"));
             documents.emplace(recomp::Menu::Config, context->LoadDocument("assets/config_menu.rml"));
         }
+
+        void update_focus(bool mouse_moved) {
+            Rml::Element* focused = current_document->GetFocusLeafNode();
+
+            // If there was mouse motion, get the current hovered element (or its target if it points to one) and focus that if applicable.
+            if (mouse_moved) {
+                Rml::Element* hovered = context->GetHoverElement();
+                if (hovered) {
+                    Rml::Element* hover_target = get_target(current_document, hovered);
+                    if (hover_target && can_focus(hover_target)) {
+                        hover_target->Focus();
+                    }
+                }
+            }
+
+            // Revert focus to the previous element if focused on anything without a tab index.
+            // This should prevent the user from losing focus on something that has no navigation.
+            if (focused && !can_focus(focused)) {
+                prev_focused->Focus();
+            }
+            else {
+                prev_focused = current_document->GetFocusLeafNode();
+            }
+        }
     } rml;
 } UIContext;
 
@@ -710,9 +757,22 @@ void draw_hook(RT64::RenderCommandList* command_list, RT64::RenderTexture* swap_
 
     SDL_Event cur_event{};
 
+    bool mouse_moved = false;
+
     while (recomp::try_deque_event(cur_event)) {
         RmlSDL::InputEventHandler(UIContext.rml.context, cur_event);
+
+        // If a menu is open then implement some additional behavior for specific events on top of what RmlUi normally does with them.
+        if (cur_menu != recomp::Menu::None) {
+            switch (cur_event.type) {
+            case SDL_EventType::SDL_MOUSEMOTION:
+                mouse_moved = true;
+                break;
             }
+        }
+    }
+
+    UIContext.rml.update_focus(mouse_moved);
 
     if (cur_menu != recomp::Menu::None) {
         int width, height;