Merge 5fea1e748d into fd45553aff

.gitignore

@@ -1,7 +1,5 @@
-cmake-build-debug/
-cmake-build-release/
+cmake-build-*/
 .DS_Store
 .idea/
-build/
 node_modules/
 *.dSYM

CMakeLists.txt

@@ -12,4 +12,5 @@ if(NOT MSVC)
   add_subdirectory("examples/clay-official-website")
   add_subdirectory("examples/introducing-clay-video-demo")
   add_subdirectory("examples/SDL2-video-demo")
+  add_subdirectory("examples/minimal-imgui")
 endif()

README.md

@@ -245,7 +245,7 @@ This ID (or, if not provided, an auto generated ID) will be forwarded to the fin
 
 Clay provides several functions for handling mouse and pointer interactions.
 
-All pointer interactions depend on the function `void Clay_SetPointerState(Clay_Vector2 position)` being called after each mouse position update and before any other clay functions.
+All pointer interactions depend on the function `void Clay_SetPointerState(Clay_Vector2 position, bool isPointerDown)` being called after each mouse position update and before any other clay functions.
 
 **During UI declaration**
 

clay.h

@@ -29,43 +29,41 @@
 
 // Public Macro API ------------------------
 
-#ifdef __cplusplus
-#define CLAY__CONFIG_WRAPPER(type, ...) __VA_ARGS__
-#else
-#define CLAY__CONFIG_WRAPPER(type, ...) (type) __VA_ARGS__
-#endif
+#define CLAY__WRAPPER_TYPE(type) Clay__##type##Wrapper
+#define CLAY__WRAPPER_STRUCT(type) typedef struct { type wrapped; } CLAY__WRAPPER_TYPE(type)
+#define CLAY__CONFIG_WRAPPER(type, ...) (CLAY__INIT(CLAY__WRAPPER_TYPE(type)) { __VA_ARGS__ }).wrapped
 
 #define CLAY__MAX(x, y) (((x) > (y)) ? (x) : (y))
 #define CLAY__MIN(x, y) (((x) < (y)) ? (x) : (y))
 
 #define CLAY_LAYOUT(...) Clay__AttachLayoutConfig(Clay__StoreLayoutConfig(CLAY__CONFIG_WRAPPER(Clay_LayoutConfig, __VA_ARGS__)))
 
-#define CLAY_RECTANGLE(...) Clay__AttachElementConfig(CLAY__CONFIG_WRAPPER(Clay_ElementConfigUnion, { .rectangleElementConfig = Clay__StoreRectangleElementConfig(CLAY__INIT(Clay_RectangleElementConfig) __VA_ARGS__) }, CLAY__ELEMENT_CONFIG_TYPE_RECTANGLE))
+#define CLAY_RECTANGLE(...) Clay__AttachElementConfig(CLAY__INIT(Clay_ElementConfigUnion) { .rectangleElementConfig = Clay__StoreRectangleElementConfig(CLAY__CONFIG_WRAPPER(Clay_RectangleElementConfig, __VA_ARGS__)) }, CLAY__ELEMENT_CONFIG_TYPE_RECTANGLE)
 
 #define CLAY_TEXT_CONFIG(...) Clay__StoreTextElementConfig(CLAY__CONFIG_WRAPPER(Clay_TextElementConfig, __VA_ARGS__))
 
-#define CLAY_IMAGE(...) Clay__AttachElementConfig(CLAY__CONFIG_WRAPPER(Clay_ElementConfigUnion, { .imageElementConfig = Clay__StoreImageElementConfig(CLAY__INIT(Clay_ImageElementConfig) __VA_ARGS__) }, CLAY__ELEMENT_CONFIG_TYPE_IMAGE))
+#define CLAY_IMAGE(...) Clay__AttachElementConfig(CLAY__INIT(Clay_ElementConfigUnion) { .imageElementConfig = Clay__StoreImageElementConfig(CLAY__CONFIG_WRAPPER(Clay_ImageElementConfig, __VA_ARGS__)) }, CLAY__ELEMENT_CONFIG_TYPE_IMAGE)
 
-#define CLAY_FLOATING(...) Clay__AttachElementConfig(CLAY__CONFIG_WRAPPER(Clay_ElementConfigUnion, { .floatingElementConfig = Clay__StoreFloatingElementConfig(CLAY__INIT(Clay_FloatingElementConfig) __VA_ARGS__) }, CLAY__ELEMENT_CONFIG_TYPE_FLOATING_CONTAINER))
+#define CLAY_FLOATING(...) Clay__AttachElementConfig(CLAY__INIT(Clay_ElementConfigUnion) { .floatingElementConfig = Clay__StoreFloatingElementConfig(CLAY__CONFIG_WRAPPER(Clay_FloatingElementConfig, __VA_ARGS__)) }, CLAY__ELEMENT_CONFIG_TYPE_FLOATING_CONTAINER)
 
-#define CLAY_CUSTOM_ELEMENT(...) Clay__AttachElementConfig(CLAY__CONFIG_WRAPPER(Clay_ElementConfigUnion, { .customElementConfig = Clay__StoreCustomElementConfig(CLAY__INIT(Clay_CustomElementConfig) __VA_ARGS__) }, CLAY__ELEMENT_CONFIG_TYPE_CUSTOM))
+#define CLAY_CUSTOM_ELEMENT(...) Clay__AttachElementConfig(CLAY__INIT(Clay_ElementConfigUnion) { .customElementConfig = Clay__StoreCustomElementConfig(CLAY__CONFIG_WRAPPER(Clay_CustomElementConfig, __VA_ARGS__)) }, CLAY__ELEMENT_CONFIG_TYPE_CUSTOM)
 
-#define CLAY_SCROLL(...) Clay__AttachElementConfig(CLAY__CONFIG_WRAPPER(Clay_ElementConfigUnion, { .scrollElementConfig = Clay__StoreScrollElementConfig(CLAY__INIT(Clay_ScrollElementConfig) __VA_ARGS__) }, CLAY__ELEMENT_CONFIG_TYPE_SCROLL_CONTAINER))
+#define CLAY_SCROLL(...) Clay__AttachElementConfig(CLAY__INIT(Clay_ElementConfigUnion) { .scrollElementConfig = Clay__StoreScrollElementConfig(CLAY__CONFIG_WRAPPER(Clay_ScrollElementConfig, __VA_ARGS__)) }, CLAY__ELEMENT_CONFIG_TYPE_SCROLL_CONTAINER)
 
-#define CLAY_BORDER(...) Clay__AttachElementConfig(CLAY__CONFIG_WRAPPER(Clay_ElementConfigUnion, { .borderElementConfig = Clay__StoreBorderElementConfig(CLAY__INIT(Clay_BorderElementConfig) __VA_ARGS__) }, CLAY__ELEMENT_CONFIG_TYPE_BORDER_CONTAINER))
+#define CLAY_BORDER(...) Clay__AttachElementConfig(CLAY__INIT(Clay_ElementConfigUnion) { .borderElementConfig = Clay__StoreBorderElementConfig(CLAY__CONFIG_WRAPPER(Clay_BorderElementConfig, __VA_ARGS__)) }, CLAY__ELEMENT_CONFIG_TYPE_BORDER_CONTAINER)
 
-#define CLAY_BORDER_OUTSIDE(...) Clay__AttachElementConfig(CLAY__CONFIG_WRAPPER(Clay_ElementConfigUnion, { .borderElementConfig = Clay__StoreBorderElementConfig(CLAY__INIT(Clay_BorderElementConfig) { .left = __VA_ARGS__, .right = __VA_ARGS__, .top = __VA_ARGS__, .bottom = __VA_ARGS__ }) }, CLAY__ELEMENT_CONFIG_TYPE_BORDER_CONTAINER))
+#define CLAY_BORDER_OUTSIDE(...) Clay__AttachElementConfig(CLAY__INIT(Clay_ElementConfigUnion) { .borderElementConfig = Clay__StoreBorderElementConfig(CLAY__INIT(Clay_BorderElementConfig) { .left = __VA_ARGS__, .right = __VA_ARGS__, .top = __VA_ARGS__, .bottom = __VA_ARGS__ }) }, CLAY__ELEMENT_CONFIG_TYPE_BORDER_CONTAINER)
 
-#define CLAY_BORDER_OUTSIDE_RADIUS(width, color, radius) Clay__AttachElementConfig(CLAY__CONFIG_WRAPPER(Clay_ElementConfigUnion, { .borderElementConfig = Clay__StoreBorderElementConfig(CLAY__INIT(Clay_BorderElementConfig) { .left = { width, color }, .right = { width, color }, .top = { width, color }, .bottom = { width, color }, .cornerRadius = { radius, radius, radius, radius } })}, CLAY__ELEMENT_CONFIG_TYPE_BORDER_CONTAINER))
+#define CLAY_BORDER_OUTSIDE_RADIUS(width, color, radius) Clay__AttachElementConfig(CLAY__INIT(Clay_ElementConfigUnion) { .borderElementConfig = Clay__StoreBorderElementConfig(CLAY__INIT(Clay_BorderElementConfig) { .left = { width, color }, .right = { width, color }, .top = { width, color }, .bottom = { width, color }, .cornerRadius = CLAY_CORNER_RADIUS(radius) })}, CLAY__ELEMENT_CONFIG_TYPE_BORDER_CONTAINER)
 
-#define CLAY_BORDER_ALL(...) Clay__AttachElementConfig(CLAY__CONFIG_WRAPPER(Clay_ElementConfigUnion, { .borderElementConfig = Clay__StoreBorderElementConfig(CLAY__INIT(Clay_BorderElementConfig) { .left = __VA_ARGS__, .right = __VA_ARGS__, .top = __VA_ARGS__, .bottom = __VA_ARGS__, .betweenChildren = __VA_ARGS__ }) }, CLAY__ELEMENT_CONFIG_TYPE_BORDER_CONTAINER))
+#define CLAY_BORDER_ALL(...) Clay__AttachElementConfig(CLAY__INIT(Clay_ElementConfigUnion) { .borderElementConfig = Clay__StoreBorderElementConfig(CLAY__INIT(Clay_BorderElementConfig) { .left = __VA_ARGS__, .right = __VA_ARGS__, .top = __VA_ARGS__, .bottom = __VA_ARGS__, .betweenChildren = __VA_ARGS__ }) }, CLAY__ELEMENT_CONFIG_TYPE_BORDER_CONTAINER)
 
-#define CLAY_BORDER_ALL_RADIUS(width, color, radius) Clay__AttachElementConfig(CLAY__CONFIG_WRAPPER(Clay_ElementConfigUnion, { .borderElementConfig = Clay__StoreBorderElementConfig(CLAY__INIT(Clay_BorderElementConfig) { .left = { width, color }, .right = { width, color }, .top = { width, color }, .bottom = { width, color }, .betweenChildren = { width, color }, .cornerRadius = { radius, radius, radius, radius }}) }))
+#define CLAY_BORDER_ALL_RADIUS(width, color, radius) Clay__AttachElementConfig(CLAY__INIT(Clay_ElementConfigUnion) { .borderElementConfig = Clay__StoreBorderElementConfig(CLAY__INIT(Clay_BorderElementConfig) { .left = { width, color }, .right = { width, color }, .top = { width, color }, .bottom = { width, color }, .betweenChildren = { width, color }, .cornerRadius = CLAY_CORNER_RADIUS(radius)}) }, CLAY__ELEMENT_CONFIG_TYPE_BORDER_CONTAINER)
 
 #define CLAY_CORNER_RADIUS(radius) (CLAY__INIT(Clay_CornerRadius) { radius, radius, radius, radius })
 
 #define CLAY__STRUCT_1_ARGS(a) a
-#define CLAY__STRUCT_0_ARGS() {0}
+#define CLAY__STRUCT_0_ARGS() CLAY__DEFAULT_STRUCT
 #define CLAY__STRUCT_OVERRIDE(_0, _1, NAME, ...) NAME
 
 #define CLAY__SIZING_FIT_INTERNAL(...) (CLAY__INIT(Clay_SizingAxis) { .size = { .minMax = __VA_ARGS__ }, .type = CLAY__SIZING_TYPE_FIT })
@@ -84,7 +82,7 @@
 
 #define CLAY_ID_LOCAL(label) CLAY_IDI_LOCAL(label, 0)
 
-#define CLAY_IDI_LOCAL(label, index) Clay__AttachId(Clay__HashString(CLAY_STRING(label), Clay_LayoutElementArray_Get(&Clay__layoutElements, Clay__int32_tArray_Get(&Clay__openLayoutElementStack, Clay__openLayoutElementStack.length - 2))->children.length + 1, Clay__GetOpenLayoutElement()->id))
+#define CLAY_IDI_LOCAL(label, index) Clay__AttachId(Clay__HashString(CLAY_STRING(label), index, Clay__GetParentElementId()))
 
 #define CLAY__STRING_LENGTH(s) ((sizeof(s) / sizeof((s)[0])) - sizeof((s)[0]))
 
@@ -127,17 +125,22 @@ static uint8_t CLAY__ELEMENT_DEFINITION_LATCH;
 #define CLAY_TEXT(text, textConfig) Clay__OpenTextElement(text, textConfig)
 
 #ifdef __cplusplus
+
 #define CLAY__INIT(type) type
-#define CLAY__TYPEDEF(name, ...) typedef __VA_ARGS__ name
+#define CLAY__TYPEDEF(name, ...) typedef __VA_ARGS__ name; CLAY__WRAPPER_STRUCT(name)
 #define CLAY__ALIGNMENT(type) alignof(type)
 #define CLAY__POINTER_ALIGNMENT alignof(void *)
+
 #define CLAY_PACKED_ENUM enum : uint8_t
+
+#define CLAY__DEFAULT_STRUCT {}
+
 #else
 
 #define CLAY__INIT(type) (type)
 
 #define CLAY__ALIGNMENT_STRUCT(type) struct Clay__Align##type { char c; type x; }
-#define CLAY__TYPEDEF(name, ...) typedef __VA_ARGS__ name; CLAY__ALIGNMENT_STRUCT(name)
+#define CLAY__TYPEDEF(name, ...) typedef __VA_ARGS__ name; CLAY__ALIGNMENT_STRUCT(name); CLAY__WRAPPER_STRUCT(name)
 #define CLAY__ALIGNMENT(type) (offsetof(struct Clay__Align##type, x))
 #define CLAY__POINTER_ALIGNMENT CLAY__ALIGNMENT(pointer)
 
@@ -152,8 +155,15 @@ CLAY__ALIGNMENT_STRUCT(int32_t);
 #else
 #define CLAY_PACKED_ENUM enum __attribute__((__packed__))
 #endif
+
+#if __STDC_VERSION__ >= 202311L
+#define CLAY__DEFAULT_STRUCT {}
+#else
+#define CLAY__DEFAULT_STRUCT {0}
 #endif
 
+#endif // __cplusplus
+
 #ifdef __cplusplus
 extern "C" {
 #endif
@@ -516,6 +526,7 @@ Clay_ScrollElementConfig * Clay__StoreScrollElementConfig(Clay_ScrollElementConf
 Clay_BorderElementConfig * Clay__StoreBorderElementConfig(Clay_BorderElementConfig config);
 Clay_ElementId Clay__HashString(Clay_String key, uint32_t offset, uint32_t seed);
 void Clay__OpenTextElement(Clay_String text, Clay_TextElementConfig *textConfig);
+uint32_t Clay__GetParentElementId(void);
 
 extern Clay_Color Clay__debugViewHighlightColor;
 extern uint32_t Clay__debugViewWidth;
@@ -564,7 +575,7 @@ CLAY__TYPEDEF(Clay__Warning, struct {
     Clay_String dynamicMessage;
 });
 
-Clay__Warning CLAY__WARNING_DEFAULT = {0};
+Clay__Warning CLAY__WARNING_DEFAULT = CLAY__DEFAULT_STRUCT;
 
 #pragma region generated
 CLAY__TYPEDEF(Clay__WarningArray, struct {
@@ -592,7 +603,7 @@ Clay__WarningArray Clay__WarningArray_Allocate_Arena(int32_t capacity, Clay_Aren
     return array;
 }
 
-Clay__WarningArray Clay_warnings = {0};
+Clay__WarningArray Clay_warnings = CLAY__DEFAULT_STRUCT;
 
 Clay__Warning *Clay__WarningArray_Add(Clay__WarningArray *array, Clay__Warning item)
 {
@@ -662,7 +673,7 @@ Clay__BoolArray Clay__BoolArray_Allocate_Arena(int32_t capacity, Clay_Arena *are
 #pragma endregion
 // __GENERATED__ template
 
-Clay_ElementId CLAY__ELEMENT_ID_DEFAULT = {0};
+Clay_ElementId CLAY__ELEMENT_ID_DEFAULT = CLAY__DEFAULT_STRUCT;
 
 // __GENERATED__ template array_define,array_allocate,array_get,array_add TYPE=Clay_ElementId NAME=Clay__ElementIdArray DEFAULT_VALUE=&CLAY__ELEMENT_ID_DEFAULT
 #pragma region generated
@@ -688,7 +699,7 @@ Clay_ElementId *Clay__ElementIdArray_Add(Clay__ElementIdArray *array, Clay_Eleme
 #pragma endregion
 // __GENERATED__ template
 
-Clay_ElementConfig CLAY__ELEMENT_CONFIG_DEFAULT = {CLAY__ELEMENT_CONFIG_TYPE_NONE, {0}};
+Clay_ElementConfig CLAY__ELEMENT_CONFIG_DEFAULT = {CLAY__ELEMENT_CONFIG_TYPE_NONE, CLAY__DEFAULT_STRUCT};
 
 // __GENERATED__ template array_define,array_define_slice,array_allocate,array_get,array_add,array_get_slice TYPE=Clay_ElementConfig NAME=Clay__ElementConfigArray DEFAULT_VALUE=&CLAY__ELEMENT_CONFIG_DEFAULT
 #pragma region generated
@@ -745,7 +756,7 @@ Clay_LayoutConfig *Clay__LayoutConfigArray_Add(Clay__LayoutConfigArray *array, C
 #pragma endregion
 // __GENERATED__ template
 
-Clay_RectangleElementConfig CLAY__RECTANGLE_ELEMENT_CONFIG_DEFAULT = {0};
+Clay_RectangleElementConfig CLAY__RECTANGLE_ELEMENT_CONFIG_DEFAULT = CLAY__DEFAULT_STRUCT;
 
 // __GENERATED__ template array_define,array_allocate,array_add TYPE=Clay_RectangleElementConfig NAME=Clay__RectangleElementConfigArray DEFAULT_VALUE=&CLAY__RECTANGLE_ELEMENT_CONFIG_DEFAULT
 #pragma region generated
@@ -768,7 +779,7 @@ Clay_RectangleElementConfig *Clay__RectangleElementConfigArray_Add(Clay__Rectang
 #pragma endregion
 // __GENERATED__ template
 
-Clay_TextElementConfig CLAY__TEXT_ELEMENT_CONFIG_DEFAULT = {0};
+Clay_TextElementConfig CLAY__TEXT_ELEMENT_CONFIG_DEFAULT = CLAY__DEFAULT_STRUCT;
 
 // __GENERATED__ template array_define,array_allocate,array_add TYPE=Clay_TextElementConfig NAME=Clay__TextElementConfigArray DEFAULT_VALUE=&CLAY__TEXT_ELEMENT_CONFIG_DEFAULT
 #pragma region generated
@@ -791,7 +802,7 @@ Clay_TextElementConfig *Clay__TextElementConfigArray_Add(Clay__TextElementConfig
 #pragma endregion
 // __GENERATED__ template
 
-Clay_ImageElementConfig CLAY__IMAGE_ELEMENT_CONFIG_DEFAULT = {0};
+Clay_ImageElementConfig CLAY__IMAGE_ELEMENT_CONFIG_DEFAULT = CLAY__DEFAULT_STRUCT;
 
 // __GENERATED__ template array_define,array_allocate,array_add TYPE=Clay_ImageElementConfig NAME=Clay__ImageElementConfigArray DEFAULT_VALUE=&CLAY__IMAGE_ELEMENT_CONFIG_DEFAULT
 #pragma region generated
@@ -814,7 +825,7 @@ Clay_ImageElementConfig *Clay__ImageElementConfigArray_Add(Clay__ImageElementCon
 #pragma endregion
 // __GENERATED__ template
 
-Clay_FloatingElementConfig CLAY__FLOATING_ELEMENT_CONFIG_DEFAULT = {0};
+Clay_FloatingElementConfig CLAY__FLOATING_ELEMENT_CONFIG_DEFAULT = CLAY__DEFAULT_STRUCT;
 
 // __GENERATED__ template array_define,array_allocate,array_add TYPE=Clay_FloatingElementConfig NAME=Clay__FloatingElementConfigArray DEFAULT_VALUE=&CLAY__FLOATING_ELEMENT_CONFIG_DEFAULT
 #pragma region generated
@@ -837,7 +848,7 @@ Clay_FloatingElementConfig *Clay__FloatingElementConfigArray_Add(Clay__FloatingE
 #pragma endregion
 // __GENERATED__ template
 
-Clay_CustomElementConfig CLAY__CUSTOM_ELEMENT_CONFIG_DEFAULT = {0};
+Clay_CustomElementConfig CLAY__CUSTOM_ELEMENT_CONFIG_DEFAULT = CLAY__DEFAULT_STRUCT;
 
 // __GENERATED__ template array_define,array_allocate,array_add TYPE=Clay_CustomElementConfig NAME=Clay__CustomElementConfigArray DEFAULT_VALUE=&CLAY__CUSTOM_ELEMENT_CONFIG_DEFAULT
 #pragma region generated
@@ -860,7 +871,7 @@ Clay_CustomElementConfig *Clay__CustomElementConfigArray_Add(Clay__CustomElement
 #pragma endregion
 // __GENERATED__ template
 
-Clay_ScrollElementConfig CLAY__SCROLL_ELEMENT_CONFIG_DEFAULT = {0};
+Clay_ScrollElementConfig CLAY__SCROLL_ELEMENT_CONFIG_DEFAULT = CLAY__DEFAULT_STRUCT;
 
 // __GENERATED__ template array_define,array_allocate,array_add TYPE=Clay_ScrollElementConfig NAME=Clay__ScrollElementConfigArray DEFAULT_VALUE=&CLAY__SCROLL_ELEMENT_CONFIG_DEFAULT
 #pragma region generated
@@ -908,7 +919,7 @@ CLAY__TYPEDEF(Clay__WrappedTextLine, struct {
     Clay_String line;
 });
 
-Clay__WrappedTextLine CLAY__WRAPPED_TEXT_LINE_DEFAULT = {0};
+Clay__WrappedTextLine CLAY__WRAPPED_TEXT_LINE_DEFAULT = CLAY__DEFAULT_STRUCT;
 
 // __GENERATED__ template array_define,array_define_slice,array_allocate,array_add,array_get TYPE=Clay__WrappedTextLine NAME=Clay__WrappedTextLineArray DEFAULT_VALUE=&CLAY__WRAPPED_TEXT_LINE_DEFAULT
 #pragma region generated
@@ -946,7 +957,7 @@ CLAY__TYPEDEF(Clay__TextElementData, struct {
     Clay__WrappedTextLineArraySlice wrappedLines;
 });
 
-Clay__TextElementData CLAY__TEXT_ELEMENT_DATA_DEFAULT = {0};
+Clay__TextElementData CLAY__TEXT_ELEMENT_DATA_DEFAULT = CLAY__DEFAULT_STRUCT;
 
 // __GENERATED__ template array_define,array_allocate,array_get,array_add TYPE=Clay__TextElementData NAME=Clay__TextElementDataArray DEFAULT_VALUE=&CLAY__TEXT_ELEMENT_DATA_DEFAULT
 #pragma region generated
@@ -972,7 +983,7 @@ Clay__TextElementData *Clay__TextElementDataArray_Add(Clay__TextElementDataArray
 #pragma endregion
 // __GENERATED__ template
 
-Clay_BorderElementConfig CLAY__BORDER_ELEMENT_CONFIG_DEFAULT = {0};
+Clay_BorderElementConfig CLAY__BORDER_ELEMENT_CONFIG_DEFAULT = CLAY__DEFAULT_STRUCT;
 
 // __GENERATED__ template array_define,array_allocate,array_add TYPE=Clay_BorderElementConfig NAME=Clay__BorderElementConfigArray DEFAULT_VALUE=&CLAY__BORDER_ELEMENT_CONFIG_DEFAULT
 #pragma region generated
@@ -1013,7 +1024,7 @@ CLAY__TYPEDEF(Clay_LayoutElement, struct {
     uint32_t id;
 });
 
-Clay_LayoutElement CLAY__LAYOUT_ELEMENT_DEFAULT = {0};
+Clay_LayoutElement CLAY__LAYOUT_ELEMENT_DEFAULT = CLAY__DEFAULT_STRUCT;
 
 // __GENERATED__ template array_define,array_allocate,array_add,array_get TYPE=Clay_LayoutElement NAME=Clay_LayoutElementArray DEFAULT_VALUE=&CLAY__LAYOUT_ELEMENT_DEFAULT
 #pragma region generated
@@ -1072,7 +1083,7 @@ Clay_LayoutElement* Clay__LayoutElementPointerArray_RemoveSwapback(Clay__LayoutE
 #pragma endregion
 // __GENERATED__ template
 
-Clay_RenderCommand CLAY__RENDER_COMMAND_DEFAULT = {0};
+Clay_RenderCommand CLAY__RENDER_COMMAND_DEFAULT = CLAY__DEFAULT_STRUCT;
 
 // __GENERATED__ template array_allocate,array_add,array_get TYPE=Clay_RenderCommand NAME=Clay_RenderCommandArray DEFAULT_VALUE=&CLAY__RENDER_COMMAND_DEFAULT
 #pragma region generated
@@ -1107,7 +1118,7 @@ CLAY__TYPEDEF(Clay__ScrollContainerDataInternal, struct {
     bool pointerScrollActive;
 });
 
-Clay__ScrollContainerDataInternal CLAY__SCROLL_CONTAINER_DEFAULT = {0};
+Clay__ScrollContainerDataInternal CLAY__SCROLL_CONTAINER_DEFAULT = CLAY__DEFAULT_STRUCT;
 
 // __GENERATED__ template array_define,array_allocate,array_add,array_get TYPE=Clay__ScrollContainerDataInternal NAME=Clay__ScrollContainerDataInternalArray DEFAULT_VALUE=&CLAY__SCROLL_CONTAINER_DEFAULT
 #pragma region generated
@@ -1152,7 +1163,7 @@ CLAY__TYPEDEF(Clay__DebugElementData, struct {
     bool collapsed;
 });
 
-Clay__DebugElementData CLAY__DEBUG_ELEMENT_DATA_DEFAULT = {0};
+Clay__DebugElementData CLAY__DEBUG_ELEMENT_DATA_DEFAULT = CLAY__DEFAULT_STRUCT;
 
 // __GENERATED__ template array_define,array_allocate,array_add,array_get TYPE=Clay__DebugElementData NAME=Clay__DebugElementDataArray DEFAULT_VALUE=&CLAY__DEBUG_ELEMENT_DATA_DEFAULT
 #pragma region generated
@@ -1338,7 +1349,7 @@ CLAY__TYPEDEF(Clay__LayoutElementTreeNode, struct {
     Clay_Vector2 nextChildOffset;
 });
 
-Clay__LayoutElementTreeNode CLAY__LAYOUT_ELEMENT_TREE_NODE_DEFAULT = {0};
+Clay__LayoutElementTreeNode CLAY__LAYOUT_ELEMENT_TREE_NODE_DEFAULT = CLAY__DEFAULT_STRUCT;
 
 // __GENERATED__ template array_define,array_allocate,array_add,array_get TYPE=Clay__LayoutElementTreeNode NAME=Clay__LayoutElementTreeNodeArray DEFAULT_VALUE=&CLAY__LAYOUT_ELEMENT_TREE_NODE_DEFAULT
 #pragma region generated
@@ -1372,7 +1383,7 @@ CLAY__TYPEDEF(Clay__LayoutElementTreeRoot, struct {
     Clay_Vector2 pointerOffset; // Only used when scroll containers are managed externally
 });
 
-Clay__LayoutElementTreeRoot CLAY__LAYOUT_ELEMENT_TREE_ROOT_DEFAULT = {0};
+Clay__LayoutElementTreeRoot CLAY__LAYOUT_ELEMENT_TREE_ROOT_DEFAULT = CLAY__DEFAULT_STRUCT;
 
 // __GENERATED__ template array_define,array_allocate,array_add,array_get TYPE=Clay__LayoutElementTreeRoot NAME=Clay__LayoutElementTreeRootArray DEFAULT_VALUE=&CLAY__LAYOUT_ELEMENT_TREE_ROOT_DEFAULT
 #pragma region generated
@@ -1422,7 +1433,7 @@ Clay_String Clay__WriteStringToCharBuffer(Clay__CharArray *buffer, Clay_String s
 
 // Global Variable Definitions ----------------------------------------------
 Clay_PointerData Clay__pointerInfo = { .position = {-1, -1} };
-Clay_Dimensions Clay__layoutDimensions = {0};
+Clay_Dimensions Clay__layoutDimensions = CLAY__DEFAULT_STRUCT;
 Clay_ElementId Clay__dynamicElementIndexBaseHash = { .id = 128476991, .stringId = { .length = 8, .chars = "Auto ID" } };
 uint32_t Clay__dynamicElementIndex = 0;
 bool Clay__debugModeEnabled = false;
@@ -1486,6 +1497,10 @@ Clay_LayoutElement* Clay__GetOpenLayoutElement(void) {
     return Clay_LayoutElementArray_Get(&Clay__layoutElements, Clay__int32_tArray_Get(&Clay__openLayoutElementStack, Clay__openLayoutElementStack.length - 1));
 }
 
+uint32_t Clay__GetParentElementId(void) {
+    return Clay_LayoutElementArray_Get(&Clay__layoutElements, Clay__int32_tArray_Get(&Clay__openLayoutElementStack, Clay__openLayoutElementStack.length - 2))->id;
+}
+
 bool Clay__ElementHasConfig(Clay_LayoutElement *element, Clay__ElementConfigType type) {
     return (element->configsEnabled & type);
 }
@@ -1771,7 +1786,7 @@ Clay_LayoutElementHashMapItem* Clay__AddHashMapItem(Clay_ElementId elementId, Cl
         hashItemIndex = hashItem->nextIndex;
     }
     Clay_LayoutElementHashMapItem *hashItem = Clay__LayoutElementHashMapItemArray_Add(&Clay__layoutElementsHashMapInternal, item);
-    hashItem->debugData = Clay__DebugElementDataArray_Add(&Clay__debugElementData, CLAY__INIT(Clay__DebugElementData) {0});
+    hashItem->debugData = Clay__DebugElementDataArray_Add(&Clay__debugElementData, CLAY__INIT(Clay__DebugElementData) CLAY__DEFAULT_STRUCT);
     if (hashItemPrevious != -1) {
         Clay__LayoutElementHashMapItemArray_Get(&Clay__layoutElementsHashMapInternal, hashItemPrevious)->nextIndex = (int32_t)Clay__layoutElementsHashMapInternal.length - 1;
     } else {
@@ -1990,7 +2005,7 @@ void Clay__OpenElement(void) {
         Clay__booleanWarnings.maxElementsExceeded = true;
         return;
     }
-    Clay_LayoutElement layoutElement = {0};
+    Clay_LayoutElement layoutElement = CLAY__DEFAULT_STRUCT;
     Clay_LayoutElementArray_Add(&Clay__layoutElements, layoutElement);
     Clay__int32_tArray_Add(&Clay__openLayoutElementStack, Clay__layoutElements.length - 1);
     if (Clay__openClipElementStack.length > 0) {
@@ -2486,7 +2501,7 @@ void Clay__CalculateFinalLayout(void) {
         dfsBuffer.length = 0;
         Clay__LayoutElementTreeRoot *root = Clay__LayoutElementTreeRootArray_Get(&Clay__layoutElementTreeRoots, rootIndex);
         Clay_LayoutElement *rootElement = Clay_LayoutElementArray_Get(&Clay__layoutElements, (int)root->layoutElementIndex);
-        Clay_Vector2 rootPosition = {0};
+        Clay_Vector2 rootPosition = CLAY__DEFAULT_STRUCT;
         Clay_LayoutElementHashMapItem *parentHashMapItem = Clay__GetHashMapItem(root->parentId);
         // Position root floating containers
         if (Clay__ElementHasConfig(rootElement, CLAY__ELEMENT_CONFIG_TYPE_FLOATING_CONTAINER) && parentHashMapItem) {
@@ -2494,7 +2509,7 @@ void Clay__CalculateFinalLayout(void) {
             Clay_Dimensions rootDimensions = rootElement->dimensions;
             Clay_BoundingBox parentBoundingBox = parentHashMapItem->boundingBox;
             // Set X position
-            Clay_Vector2 targetAttachPosition = {0};
+            Clay_Vector2 targetAttachPosition = CLAY__DEFAULT_STRUCT;
             switch (config->attachment.parent) {
                 case CLAY_ATTACH_POINT_LEFT_TOP:
                 case CLAY_ATTACH_POINT_LEFT_CENTER:
@@ -2565,7 +2580,7 @@ void Clay__CalculateFinalLayout(void) {
                 }
                 Clay__AddRenderCommand(CLAY__INIT(Clay_RenderCommand) {
                     .boundingBox = clipHashMapItem->boundingBox,
-                    .config = { .scrollElementConfig = Clay__StoreScrollElementConfig(CLAY__INIT(Clay_ScrollElementConfig){0}) },
+                    .config = { .scrollElementConfig = Clay__StoreScrollElementConfig(CLAY__INIT(Clay_ScrollElementConfig)CLAY__DEFAULT_STRUCT) },
                     .id = Clay__RehashWithNumber(rootElement->id, 10), // TODO need a better strategy for managing derived ids
                     .commandType = CLAY_RENDER_COMMAND_TYPE_SCISSOR_START,
                 });
@@ -2578,7 +2593,7 @@ void Clay__CalculateFinalLayout(void) {
             Clay__LayoutElementTreeNode *currentElementTreeNode = Clay__LayoutElementTreeNodeArray_Get(&dfsBuffer, (int)dfsBuffer.length - 1);
             Clay_LayoutElement *currentElement = currentElementTreeNode->layoutElement;
             Clay_LayoutConfig *layoutConfig = currentElement->layoutConfig;
-            Clay_Vector2 scrollOffset = {0};
+            Clay_Vector2 scrollOffset = CLAY__DEFAULT_STRUCT;
 
             // This will only be run a single time for each element in downwards DFS order
             if (!Clay__treeNodeVisited.internalArray[dfsBuffer.length - 1]) {
@@ -2612,7 +2627,7 @@ void Clay__CalculateFinalLayout(void) {
                                 scrollOffset.y = mapping->scrollPosition.y;
                             }
                             if (Clay__externalScrollHandlingEnabled) {
-                                scrollOffset = CLAY__INIT(Clay_Vector2) {0};
+                                scrollOffset = CLAY__INIT(Clay_Vector2) CLAY__DEFAULT_STRUCT;
                             }
                             break;
                         }
@@ -2776,7 +2791,7 @@ void Clay__CalculateFinalLayout(void) {
                             if (scrollConfig->horizontal) { scrollOffset.x = mapping->scrollPosition.x; }
                             if (scrollConfig->vertical) { scrollOffset.y = mapping->scrollPosition.y; }
                             if (Clay__externalScrollHandlingEnabled) {
-                                scrollOffset = CLAY__INIT(Clay_Vector2) {0};
+                                scrollOffset = CLAY__INIT(Clay_Vector2) CLAY__DEFAULT_STRUCT;
                             }
                             break;
                         }
@@ -2939,7 +2954,7 @@ const int32_t CLAY__DEBUGVIEW_ROW_HEIGHT = 30;
 const int32_t CLAY__DEBUGVIEW_OUTER_PADDING = 10;
 const int32_t CLAY__DEBUGVIEW_INDENT_WIDTH = 16;
 Clay_TextElementConfig Clay__DebugView_TextNameConfig = {.textColor = {238, 226, 231, 255}, .fontSize = 16, .wrapMode = CLAY_TEXT_WRAP_NONE };
-Clay_LayoutConfig Clay__DebugView_ScrollViewItemLayoutConfig = {0};
+Clay_LayoutConfig Clay__DebugView_ScrollViewItemLayoutConfig = CLAY__DEFAULT_STRUCT;
 
 CLAY__TYPEDEF(Clay__DebugElementConfigTypeLabelConfig, struct {
     Clay_String label;
@@ -2969,7 +2984,7 @@ CLAY__TYPEDEF(Clay__RenderDebugLayoutData, struct {
 Clay__RenderDebugLayoutData Clay__RenderDebugLayoutElementsList(int32_t initialRootsLength, int32_t highlightedRowIndex) {
     Clay__int32_tArray dfsBuffer = Clay__reusableElementIndexBuffer;
     Clay__DebugView_ScrollViewItemLayoutConfig = CLAY__INIT(Clay_LayoutConfig) { .sizing = { .height = CLAY_SIZING_FIXED(CLAY__DEBUGVIEW_ROW_HEIGHT) }, .childGap = 6, .childAlignment = { .y = CLAY_ALIGN_Y_CENTER }};
-    Clay__RenderDebugLayoutData layoutData = {0};
+    Clay__RenderDebugLayoutData layoutData = CLAY__DEFAULT_STRUCT;
 
     uint32_t highlightedElementId = 0;
 
@@ -2979,8 +2994,8 @@ Clay__RenderDebugLayoutData Clay__RenderDebugLayoutElementsList(int32_t initialR
         Clay__int32_tArray_Add(&dfsBuffer, (int32_t)root->layoutElementIndex);
         Clay__treeNodeVisited.internalArray[0] = false;
         if (rootIndex > 0) {
-            CLAY(CLAY_IDI("Clay__DebugView_EmptyRowOuter", rootIndex), CLAY_LAYOUT({ .sizing = {.width = CLAY_SIZING_GROW({0})}, .padding = {CLAY__DEBUGVIEW_INDENT_WIDTH / 2, 0} })) {
-                CLAY(CLAY_IDI("Clay__DebugView_EmptyRow", rootIndex), CLAY_LAYOUT({ .sizing = { .width = CLAY_SIZING_GROW({0}), .height = CLAY_SIZING_FIXED((float)CLAY__DEBUGVIEW_ROW_HEIGHT) }}), CLAY_BORDER({ .top = { .width = 1, .color = CLAY__DEBUGVIEW_COLOR_3 } })) {}
+            CLAY(CLAY_IDI("Clay__DebugView_EmptyRowOuter", rootIndex), CLAY_LAYOUT({ .sizing = {.width = CLAY_SIZING_GROW(CLAY__DEFAULT_STRUCT)}, .padding = {CLAY__DEBUGVIEW_INDENT_WIDTH / 2, 0} })) {
+                CLAY(CLAY_IDI("Clay__DebugView_EmptyRow", rootIndex), CLAY_LAYOUT({ .sizing = { .width = CLAY_SIZING_GROW(CLAY__DEFAULT_STRUCT), .height = CLAY_SIZING_FIXED((float)CLAY__DEBUGVIEW_ROW_HEIGHT) }}), CLAY_BORDER({ .top = { .width = 1, .color = CLAY__DEBUGVIEW_COLOR_3 } })) {}
             }
             layoutData.rowCount++;
         }
@@ -3057,8 +3072,8 @@ Clay__RenderDebugLayoutData Clay__RenderDebugLayoutElementsList(int32_t initialR
                 layoutData.rowCount++;
                 Clay__TextElementData *textElementData = currentElement->childrenOrTextContent.textElementData;
                 Clay_TextElementConfig *rawTextConfig = offscreen ? CLAY_TEXT_CONFIG({ .textColor = CLAY__DEBUGVIEW_COLOR_3, .fontSize = 16 }) : &Clay__DebugView_TextNameConfig;
-                CLAY(CLAY_LAYOUT({ .sizing = { .height = CLAY_SIZING_FIXED(CLAY__DEBUGVIEW_ROW_HEIGHT)}, .childAlignment = { .y = CLAY_ALIGN_Y_CENTER } }), CLAY_RECTANGLE({0})) {
-                    CLAY(CLAY_LAYOUT({ .sizing = {CLAY_SIZING_FIXED(CLAY__DEBUGVIEW_INDENT_WIDTH + 16), {0}} })) {}
+                CLAY(CLAY_LAYOUT({ .sizing = { .height = CLAY_SIZING_FIXED(CLAY__DEBUGVIEW_ROW_HEIGHT)}, .childAlignment = { .y = CLAY_ALIGN_Y_CENTER } }), CLAY_RECTANGLE(CLAY__DEFAULT_STRUCT)) {
+                    CLAY(CLAY_LAYOUT({ .sizing = {CLAY_SIZING_FIXED(CLAY__DEBUGVIEW_INDENT_WIDTH + 16), CLAY__DEFAULT_STRUCT} })) {}
                     CLAY_TEXT(CLAY_STRING("\""), rawTextConfig);
                     CLAY_TEXT(textElementData->text.length > 40 ? (CLAY__INIT(Clay_String) { .length = 40, .chars = textElementData->text.chars }) : textElementData->text, rawTextConfig);
                     if (textElementData->text.length > 40) {
@@ -3073,7 +3088,7 @@ Clay__RenderDebugLayoutData Clay__RenderDebugLayoutElementsList(int32_t initialR
                 Clay__OpenElement();
                 CLAY_BORDER({ .left = { .width = 1, .color = CLAY__DEBUGVIEW_COLOR_3 }});
                 Clay__ElementPostConfiguration();
-                CLAY(CLAY_LAYOUT({ .sizing = {CLAY_SIZING_FIXED( CLAY__DEBUGVIEW_INDENT_WIDTH), {0}}, .childAlignment = { .x = CLAY_ALIGN_X_RIGHT } })) {}
+                CLAY(CLAY_LAYOUT({ .sizing = {CLAY_SIZING_FIXED( CLAY__DEBUGVIEW_INDENT_WIDTH), CLAY__DEFAULT_STRUCT}, .childAlignment = { .x = CLAY_ALIGN_X_RIGHT } })) {}
                 Clay__OpenElement();
                 CLAY_LAYOUT({ .layoutDirection = CLAY_TOP_TO_BOTTOM });
                 Clay__ElementPostConfiguration();
@@ -3102,8 +3117,8 @@ Clay__RenderDebugLayoutData Clay__RenderDebugLayoutElementsList(int32_t initialR
     }
 
     if (highlightedElementId) {
-        CLAY(CLAY_ID("Clay__DebugView_ElementHighlight"), CLAY_LAYOUT({ .sizing = {CLAY_SIZING_GROW({0}), CLAY_SIZING_GROW({0})} }), CLAY_FLOATING({ .zIndex = 65535, .parentId = highlightedElementId })) {
-            CLAY(CLAY_ID("Clay__DebugView_ElementHighlightRectangle"), CLAY_LAYOUT({ .sizing = {CLAY_SIZING_GROW({0}), CLAY_SIZING_GROW({0})} }), CLAY_RECTANGLE({.color = Clay__debugViewHighlightColor })) {}
+        CLAY(CLAY_ID("Clay__DebugView_ElementHighlight"), CLAY_LAYOUT({ .sizing = {CLAY_SIZING_GROW(CLAY__DEFAULT_STRUCT), CLAY_SIZING_GROW(CLAY__DEFAULT_STRUCT)} }), CLAY_FLOATING({ .zIndex = 65535, .parentId = highlightedElementId })) {
+            CLAY(CLAY_ID("Clay__DebugView_ElementHighlightRectangle"), CLAY_LAYOUT({ .sizing = {CLAY_SIZING_GROW(CLAY__DEFAULT_STRUCT), CLAY_SIZING_GROW(CLAY__DEFAULT_STRUCT)} }), CLAY_RECTANGLE({.color = Clay__debugViewHighlightColor })) {}
         }
     }
     return layoutData;
@@ -3138,11 +3153,11 @@ void Clay__RenderDebugViewElementConfigHeader(Clay_String elementId, Clay__Eleme
     Clay__DebugElementConfigTypeLabelConfig config = Clay__DebugGetElementConfigTypeLabel(type);
     Clay_Color backgroundColor = config.color;
     backgroundColor.a = 90;
-    CLAY(CLAY_LAYOUT({ .sizing = { CLAY_SIZING_GROW({0}), CLAY_SIZING_FIXED(CLAY__DEBUGVIEW_ROW_HEIGHT + 8)}, .padding = { .x = CLAY__DEBUGVIEW_OUTER_PADDING }, .childAlignment = { .y = CLAY_ALIGN_Y_CENTER } })) {
+    CLAY(CLAY_LAYOUT({ .sizing = { CLAY_SIZING_GROW(CLAY__DEFAULT_STRUCT), CLAY_SIZING_FIXED(CLAY__DEBUGVIEW_ROW_HEIGHT + 8)}, .padding = { .x = CLAY__DEBUGVIEW_OUTER_PADDING }, .childAlignment = { .y = CLAY_ALIGN_Y_CENTER } })) {
         CLAY(CLAY_LAYOUT({ .padding = { 8, 2 } }), CLAY_RECTANGLE({ .color = backgroundColor, .cornerRadius = CLAY_CORNER_RADIUS(4) }), CLAY_BORDER_OUTSIDE_RADIUS(1, config.color, 4)) {
             CLAY_TEXT(config.label, CLAY_TEXT_CONFIG({ .textColor = CLAY__DEBUGVIEW_COLOR_4, .fontSize = 16 }));
         }
-        CLAY(CLAY_LAYOUT({ .sizing = { .width = CLAY_SIZING_GROW({0}) } })) {}
+        CLAY(CLAY_LAYOUT({ .sizing = { .width = CLAY_SIZING_GROW(CLAY__DEFAULT_STRUCT) } })) {}
         CLAY_TEXT(elementId, CLAY_TEXT_CONFIG({ .textColor = CLAY__DEBUGVIEW_COLOR_3, .fontSize = 16, .wrapMode = CLAY_TEXT_WRAP_NONE }));
     }
 }
@@ -3158,7 +3173,7 @@ void Clay__RenderDebugViewColor(Clay_Color color, Clay_TextElementConfig *textCo
         CLAY_TEXT(CLAY_STRING(", a: "), textConfig);
         CLAY_TEXT(Clay__IntToString(color.a), textConfig);
         CLAY_TEXT(CLAY_STRING(" }"), textConfig);
-        CLAY(CLAY_LAYOUT({ .sizing = { CLAY_SIZING_FIXED(10), {0} } })) {}
+        CLAY(CLAY_LAYOUT({ .sizing = { CLAY_SIZING_FIXED(10), CLAY__DEFAULT_STRUCT } })) {}
         CLAY(CLAY_LAYOUT({ .sizing = { CLAY_SIZING_FIXED(CLAY__DEBUGVIEW_ROW_HEIGHT - 8), CLAY_SIZING_FIXED(CLAY__DEBUGVIEW_ROW_HEIGHT - 8)} }), CLAY_BORDER_OUTSIDE_RADIUS(1, CLAY__DEBUGVIEW_COLOR_4, 4)) {
             CLAY(CLAY_LAYOUT({ .sizing = { CLAY_SIZING_FIXED(CLAY__DEBUGVIEW_ROW_HEIGHT - 8), CLAY_SIZING_FIXED(CLAY__DEBUGVIEW_ROW_HEIGHT - 8)} }), CLAY_RECTANGLE({ .color = color, .cornerRadius = CLAY_CORNER_RADIUS(4) })) {}
         }
@@ -3230,15 +3245,15 @@ void Clay__RenderDebugView(void) {
     if (Clay__pointerInfo.position.x < Clay__layoutDimensions.width - (float)Clay__debugViewWidth) {
         highlightedRow = -1;
     }
-    Clay__RenderDebugLayoutData layoutData = {0};
+    Clay__RenderDebugLayoutData layoutData = CLAY__DEFAULT_STRUCT;
     CLAY(CLAY_ID("Clay__DebugView"),
         CLAY_FLOATING({ .parentId = Clay__HashString(CLAY_STRING("Clay__RootContainer"), 0, 0).id, .attachment = { .element = CLAY_ATTACH_POINT_LEFT_CENTER, .parent = CLAY_ATTACH_POINT_RIGHT_CENTER }}),
         CLAY_LAYOUT({ .sizing = { CLAY_SIZING_FIXED((float)Clay__debugViewWidth) , CLAY_SIZING_FIXED(Clay__layoutDimensions.height) }, .layoutDirection = CLAY_TOP_TO_BOTTOM }),
         CLAY_BORDER({ .bottom = { .width = 1, .color = CLAY__DEBUGVIEW_COLOR_3 }})
     ) {
-        CLAY(CLAY_LAYOUT({ .sizing = {CLAY_SIZING_GROW({0}), CLAY_SIZING_FIXED(CLAY__DEBUGVIEW_ROW_HEIGHT)}, .padding = {CLAY__DEBUGVIEW_OUTER_PADDING, 0}, .childAlignment = {.y = CLAY_ALIGN_Y_CENTER} }), CLAY_RECTANGLE({ .color = CLAY__DEBUGVIEW_COLOR_2 })) {
+        CLAY(CLAY_LAYOUT({ .sizing = {CLAY_SIZING_GROW(CLAY__DEFAULT_STRUCT), CLAY_SIZING_FIXED(CLAY__DEBUGVIEW_ROW_HEIGHT)}, .padding = {CLAY__DEBUGVIEW_OUTER_PADDING, 0}, .childAlignment = {.y = CLAY_ALIGN_Y_CENTER} }), CLAY_RECTANGLE({ .color = CLAY__DEBUGVIEW_COLOR_2 })) {
             CLAY_TEXT(CLAY_STRING("Clay Debug Tools"), infoTextConfig);
-            CLAY(CLAY_LAYOUT({ .sizing = { CLAY_SIZING_GROW({0}), {0} } })) {}
+            CLAY(CLAY_LAYOUT({ .sizing = { CLAY_SIZING_GROW(CLAY__DEFAULT_STRUCT), CLAY__DEFAULT_STRUCT } })) {}
             // Close button
             CLAY(CLAY_BORDER_OUTSIDE_RADIUS(1, (CLAY__INIT(Clay_Color){217,91,67,255}), 4),
                 CLAY_LAYOUT({ .sizing = {CLAY_SIZING_FIXED(CLAY__DEBUGVIEW_ROW_HEIGHT - 10), CLAY_SIZING_FIXED(CLAY__DEBUGVIEW_ROW_HEIGHT - 10)}, .childAlignment = {CLAY_ALIGN_X_CENTER, CLAY_ALIGN_Y_CENTER} }),
@@ -3248,18 +3263,18 @@ void Clay__RenderDebugView(void) {
                 CLAY_TEXT(CLAY_STRING("x"), CLAY_TEXT_CONFIG({ .textColor = CLAY__DEBUGVIEW_COLOR_4, .fontSize = 16 }));
             }
         }
-        CLAY(CLAY_LAYOUT({ .sizing = {CLAY_SIZING_GROW({0}), CLAY_SIZING_FIXED(1)} }), CLAY_RECTANGLE({ .color = CLAY__DEBUGVIEW_COLOR_3 })) {}
-        CLAY(Clay__AttachId(scrollId), CLAY_LAYOUT({ .sizing = {CLAY_SIZING_GROW({0}), CLAY_SIZING_GROW({0})} }), CLAY_SCROLL({ .horizontal = true, .vertical = true })) {
-            CLAY(CLAY_LAYOUT({ .sizing = {CLAY_SIZING_GROW({0}), CLAY_SIZING_GROW({0})}, .layoutDirection = CLAY_TOP_TO_BOTTOM }), CLAY_RECTANGLE({ .color = ((initialElementsLength + initialRootsLength) & 1) == 0 ? CLAY__DEBUGVIEW_COLOR_2 : CLAY__DEBUGVIEW_COLOR_1 })) {
+        CLAY(CLAY_LAYOUT({ .sizing = {CLAY_SIZING_GROW(CLAY__DEFAULT_STRUCT), CLAY_SIZING_FIXED(1)} }), CLAY_RECTANGLE({ .color = CLAY__DEBUGVIEW_COLOR_3 })) {}
+        CLAY(Clay__AttachId(scrollId), CLAY_LAYOUT({ .sizing = {CLAY_SIZING_GROW(CLAY__DEFAULT_STRUCT), CLAY_SIZING_GROW(CLAY__DEFAULT_STRUCT)} }), CLAY_SCROLL({ .horizontal = true, .vertical = true })) {
+            CLAY(CLAY_LAYOUT({ .sizing = {CLAY_SIZING_GROW(CLAY__DEFAULT_STRUCT), CLAY_SIZING_GROW(CLAY__DEFAULT_STRUCT)}, .layoutDirection = CLAY_TOP_TO_BOTTOM }), CLAY_RECTANGLE({ .color = ((initialElementsLength + initialRootsLength) & 1) == 0 ? CLAY__DEBUGVIEW_COLOR_2 : CLAY__DEBUGVIEW_COLOR_1 })) {
                 Clay_ElementId panelContentsId = Clay__HashString(CLAY_STRING("Clay__DebugViewPaneOuter"), 0, 0);
                 // Element list
-                CLAY(Clay__AttachId(panelContentsId), CLAY_LAYOUT({ .sizing = {CLAY_SIZING_GROW({0}), CLAY_SIZING_GROW({0})} }), CLAY_FLOATING({ .pointerCaptureMode = CLAY_POINTER_CAPTURE_MODE_PASSTHROUGH })) {
-                    CLAY(CLAY_LAYOUT({ .sizing = {CLAY_SIZING_GROW({0}), CLAY_SIZING_GROW({0})}, .padding = {.x = CLAY__DEBUGVIEW_OUTER_PADDING }, .layoutDirection = CLAY_TOP_TO_BOTTOM })) {
+                CLAY(Clay__AttachId(panelContentsId), CLAY_LAYOUT({ .sizing = {CLAY_SIZING_GROW(CLAY__DEFAULT_STRUCT), CLAY_SIZING_GROW(CLAY__DEFAULT_STRUCT)} }), CLAY_FLOATING({ .pointerCaptureMode = CLAY_POINTER_CAPTURE_MODE_PASSTHROUGH })) {
+                    CLAY(CLAY_LAYOUT({ .sizing = {CLAY_SIZING_GROW(CLAY__DEFAULT_STRUCT), CLAY_SIZING_GROW(CLAY__DEFAULT_STRUCT)}, .padding = {.x = CLAY__DEBUGVIEW_OUTER_PADDING }, .layoutDirection = CLAY_TOP_TO_BOTTOM })) {
                         layoutData = Clay__RenderDebugLayoutElementsList((int32_t)initialRootsLength, highlightedRow);
                     }
                 }
                 float contentWidth = Clay__GetHashMapItem(panelContentsId.id)->layoutElement->dimensions.width;
-                CLAY(CLAY_LAYOUT({ .sizing = {CLAY_SIZING_FIXED(contentWidth), {0}}, .layoutDirection = CLAY_TOP_TO_BOTTOM })) {}
+                CLAY(CLAY_LAYOUT({ .sizing = {CLAY_SIZING_FIXED(contentWidth), CLAY__DEFAULT_STRUCT}, .layoutDirection = CLAY_TOP_TO_BOTTOM })) {}
                 for (int32_t i = 0; i < layoutData.rowCount; i++) {
                     Clay_Color rowColor = (i & 1) == 0 ? CLAY__DEBUGVIEW_COLOR_2 : CLAY__DEBUGVIEW_COLOR_1;
                     if (i == layoutData.selectedElementRowIndex) {
@@ -3270,22 +3285,22 @@ void Clay__RenderDebugView(void) {
                         rowColor.g *= 1.25f;
                         rowColor.b *= 1.25f;
                     }
-                    CLAY(CLAY_LAYOUT({ .sizing = {CLAY_SIZING_GROW({0}), CLAY_SIZING_FIXED(CLAY__DEBUGVIEW_ROW_HEIGHT)}, .layoutDirection = CLAY_TOP_TO_BOTTOM }), CLAY_RECTANGLE({ .color = rowColor })) {}
+                    CLAY(CLAY_LAYOUT({ .sizing = {CLAY_SIZING_GROW(CLAY__DEFAULT_STRUCT), CLAY_SIZING_FIXED(CLAY__DEBUGVIEW_ROW_HEIGHT)}, .layoutDirection = CLAY_TOP_TO_BOTTOM }), CLAY_RECTANGLE({ .color = rowColor })) {}
                 }
             }
         }
-        CLAY(CLAY_LAYOUT({ .sizing = {.width = CLAY_SIZING_GROW({0}), .height = CLAY_SIZING_FIXED(1)} }), CLAY_RECTANGLE({ .color = CLAY__DEBUGVIEW_COLOR_3 })) {}
+        CLAY(CLAY_LAYOUT({ .sizing = {.width = CLAY_SIZING_GROW(CLAY__DEFAULT_STRUCT), .height = CLAY_SIZING_FIXED(1)} }), CLAY_RECTANGLE({ .color = CLAY__DEBUGVIEW_COLOR_3 })) {}
         if (Clay__debugSelectedElementId != 0) {
             Clay_LayoutElementHashMapItem *selectedItem = Clay__GetHashMapItem(Clay__debugSelectedElementId);
             CLAY(
                 CLAY_SCROLL({ .vertical = true }),
-                CLAY_LAYOUT({ .sizing = {CLAY_SIZING_GROW({0}), CLAY_SIZING_FIXED(300)}, .layoutDirection = CLAY_TOP_TO_BOTTOM }),
+                CLAY_LAYOUT({ .sizing = {CLAY_SIZING_GROW(CLAY__DEFAULT_STRUCT), CLAY_SIZING_FIXED(300)}, .layoutDirection = CLAY_TOP_TO_BOTTOM }),
                 CLAY_RECTANGLE({ .color = CLAY__DEBUGVIEW_COLOR_2 }),
                 CLAY_BORDER({ .betweenChildren = { .width = 1, .color = CLAY__DEBUGVIEW_COLOR_3 }})
             ) {
-                CLAY(CLAY_LAYOUT({ .sizing = {CLAY_SIZING_GROW({0}), CLAY_SIZING_FIXED(CLAY__DEBUGVIEW_ROW_HEIGHT + 8)}, .padding = {CLAY__DEBUGVIEW_OUTER_PADDING, 0}, .childAlignment = {.y = CLAY_ALIGN_Y_CENTER} })) {
+                CLAY(CLAY_LAYOUT({ .sizing = {CLAY_SIZING_GROW(CLAY__DEFAULT_STRUCT), CLAY_SIZING_FIXED(CLAY__DEBUGVIEW_ROW_HEIGHT + 8)}, .padding = {CLAY__DEBUGVIEW_OUTER_PADDING, 0}, .childAlignment = {.y = CLAY_ALIGN_Y_CENTER} })) {
                     CLAY_TEXT(CLAY_STRING("Layout Config"), infoTextConfig);
-                    CLAY(CLAY_LAYOUT({ .sizing = { CLAY_SIZING_GROW({0}), {0} } })) {}
+                    CLAY(CLAY_LAYOUT({ .sizing = { CLAY_SIZING_GROW(CLAY__DEFAULT_STRUCT), CLAY__DEFAULT_STRUCT } })) {}
                     if (selectedItem->elementId.stringId.length != 0) {
                         CLAY_TEXT(selectedItem->elementId.stringId, infoTitleConfig);
                         if (selectedItem->elementId.offset != 0) {
@@ -3299,7 +3314,7 @@ void Clay__RenderDebugView(void) {
                 CLAY(CLAY_LAYOUT({ .padding = {CLAY__DEBUGVIEW_OUTER_PADDING, 8}, .childGap = 8, .layoutDirection = CLAY_TOP_TO_BOTTOM })) {
                     // .boundingBox
                     CLAY_TEXT(CLAY_STRING("Bounding Box"), infoTitleConfig);
-                    CLAY(CLAY_LAYOUT({0})) {
+                    CLAY(CLAY_LAYOUT(CLAY__DEFAULT_STRUCT)) {
                         CLAY_TEXT(CLAY_STRING("{ x: "), infoTextConfig);
                         CLAY_TEXT(Clay__IntToString(selectedItem->boundingBox.x), infoTextConfig);
                         CLAY_TEXT(CLAY_STRING(", y: "), infoTextConfig);
@@ -3316,11 +3331,11 @@ void Clay__RenderDebugView(void) {
                     CLAY_TEXT(layoutConfig->layoutDirection == CLAY_TOP_TO_BOTTOM ? CLAY_STRING("TOP_TO_BOTTOM") : CLAY_STRING("LEFT_TO_RIGHT"), infoTextConfig);
                     // .sizing
                     CLAY_TEXT(CLAY_STRING("Sizing"), infoTitleConfig);
-                    CLAY(CLAY_LAYOUT({0})) {
+                    CLAY(CLAY_LAYOUT(CLAY__DEFAULT_STRUCT)) {
                         CLAY_TEXT(CLAY_STRING("width: "), infoTextConfig);
                         Clay__RenderDebugLayoutSizing(layoutConfig->sizing.width, infoTextConfig);
                     }
-                    CLAY(CLAY_LAYOUT({0})) {
+                    CLAY(CLAY_LAYOUT(CLAY__DEFAULT_STRUCT)) {
                         CLAY_TEXT(CLAY_STRING("height: "), infoTextConfig);
                         Clay__RenderDebugLayoutSizing(layoutConfig->sizing.height, infoTextConfig);
                     }
@@ -3338,7 +3353,7 @@ void Clay__RenderDebugView(void) {
                     CLAY_TEXT(Clay__IntToString(layoutConfig->childGap), infoTextConfig);
                     // .childAlignment
                     CLAY_TEXT(CLAY_STRING("Child Alignment"), infoTitleConfig);
-                    CLAY(CLAY_LAYOUT({0})) {
+                    CLAY(CLAY_LAYOUT(CLAY__DEFAULT_STRUCT)) {
                         CLAY_TEXT(CLAY_STRING("{ x: "), infoTextConfig);
                         Clay_String alignX = CLAY_STRING("LEFT");
                         if (layoutConfig->childAlignment.x == CLAY_ALIGN_X_CENTER) {
@@ -3418,7 +3433,7 @@ void Clay__RenderDebugView(void) {
                                 }
                                 // Image Preview
                                 CLAY_TEXT(CLAY_STRING("Preview"), infoTitleConfig);
-                                CLAY(CLAY_LAYOUT({ .sizing = { CLAY_SIZING_GROW({ .max = imageConfig->sourceDimensions.width }), {0} }}), Clay__AttachElementConfig(CLAY__INIT(Clay_ElementConfigUnion) { .imageElementConfig = imageConfig }, CLAY__ELEMENT_CONFIG_TYPE_IMAGE)) {}
+                                CLAY(CLAY_LAYOUT({ .sizing = { CLAY_SIZING_GROW({ .max = imageConfig->sourceDimensions.width }), CLAY__DEFAULT_STRUCT }}), Clay__AttachElementConfig(CLAY__INIT(Clay_ElementConfigUnion) { .imageElementConfig = imageConfig }, CLAY__ELEMENT_CONFIG_TYPE_IMAGE)) {}
                             }
                             break;
                         }
@@ -3439,7 +3454,7 @@ void Clay__RenderDebugView(void) {
                             CLAY(CLAY_LAYOUT({ .padding = {CLAY__DEBUGVIEW_OUTER_PADDING, 8}, .childGap = 8, .layoutDirection = CLAY_TOP_TO_BOTTOM })) {
                                 // .offset
                                 CLAY_TEXT(CLAY_STRING("Offset"), infoTitleConfig);
-                                CLAY(CLAY_LAYOUT({0})) {
+                                CLAY(CLAY_LAYOUT(CLAY__DEFAULT_STRUCT)) {
                                     CLAY_TEXT(CLAY_STRING("{ x: "), infoTextConfig);
                                     CLAY_TEXT(Clay__IntToString(floatingConfig->offset.x), infoTextConfig);
                                     CLAY_TEXT(CLAY_STRING(", y: "), infoTextConfig);
@@ -3448,7 +3463,7 @@ void Clay__RenderDebugView(void) {
                                 }
                                 // .expand
                                 CLAY_TEXT(CLAY_STRING("Expand"), infoTitleConfig);
-                                CLAY(CLAY_LAYOUT({0})) {
+                                CLAY(CLAY_LAYOUT(CLAY__DEFAULT_STRUCT)) {
                                     CLAY_TEXT(CLAY_STRING("{ width: "), infoTextConfig);
                                     CLAY_TEXT(Clay__IntToString(floatingConfig->expand.width), infoTextConfig);
                                     CLAY_TEXT(CLAY_STRING(", height: "), infoTextConfig);
@@ -3495,12 +3510,12 @@ void Clay__RenderDebugView(void) {
                 }
             }
         } else {
-            CLAY(CLAY_ID("Clay__DebugViewWarningsScrollPane"), CLAY_LAYOUT({ .sizing = {CLAY_SIZING_GROW({0}), CLAY_SIZING_FIXED(300)}, .childGap = 6, .layoutDirection = CLAY_TOP_TO_BOTTOM }), CLAY_SCROLL({ .horizontal = true, .vertical = true }), CLAY_RECTANGLE({ .color = CLAY__DEBUGVIEW_COLOR_2 })) {
+            CLAY(CLAY_ID("Clay__DebugViewWarningsScrollPane"), CLAY_LAYOUT({ .sizing = {CLAY_SIZING_GROW(CLAY__DEFAULT_STRUCT), CLAY_SIZING_FIXED(300)}, .childGap = 6, .layoutDirection = CLAY_TOP_TO_BOTTOM }), CLAY_SCROLL({ .horizontal = true, .vertical = true }), CLAY_RECTANGLE({ .color = CLAY__DEBUGVIEW_COLOR_2 })) {
                 Clay_TextElementConfig *warningConfig = CLAY_TEXT_CONFIG({ .textColor = CLAY__DEBUGVIEW_COLOR_4, .fontSize = 16, .wrapMode = CLAY_TEXT_WRAP_NONE });
                 CLAY(CLAY_ID("Clay__DebugViewWarningItemHeader"), CLAY_LAYOUT({ .sizing = {.height = CLAY_SIZING_FIXED(CLAY__DEBUGVIEW_ROW_HEIGHT)}, .padding = {CLAY__DEBUGVIEW_OUTER_PADDING, 0}, .childGap = 8, .childAlignment = {.y = CLAY_ALIGN_Y_CENTER} })) {
                     CLAY_TEXT(CLAY_STRING("Warnings"), warningConfig);
                 }
-                CLAY(CLAY_ID("Clay__DebugViewWarningsTopBorder"), CLAY_LAYOUT({ .sizing = { .width = CLAY_SIZING_GROW({0}), .height = CLAY_SIZING_FIXED(1)} }), CLAY_RECTANGLE({ .color = {200, 200, 200, 255} })) {}
+                CLAY(CLAY_ID("Clay__DebugViewWarningsTopBorder"), CLAY_LAYOUT({ .sizing = { .width = CLAY_SIZING_GROW(CLAY__DEFAULT_STRUCT), .height = CLAY_SIZING_FIXED(1)} }), CLAY_RECTANGLE({ .color = {200, 200, 200, 255} })) {}
                 int32_t previousWarningsLength = (int)Clay_warnings.length;
                 for (int32_t i = 0; i < previousWarningsLength; i++) {
                     Clay__Warning warning = Clay_warnings.internalArray[i];
@@ -3711,7 +3726,7 @@ void Clay_UpdateScrollContainers(bool enableDragScrolling, Clay_Vector2 scrollDe
         }
         // Handle click / touch scroll
         if (isPointerActive) {
-            highestPriorityScrollData->scrollMomentum = CLAY__INIT(Clay_Vector2){0};
+            highestPriorityScrollData->scrollMomentum = CLAY__INIT(Clay_Vector2)CLAY__DEFAULT_STRUCT;
             if (!highestPriorityScrollData->pointerScrollActive) {
                 highestPriorityScrollData->pointerOrigin = Clay__pointerInfo.position;
                 highestPriorityScrollData->scrollOrigin = highestPriorityScrollData->scrollPosition;
@@ -3852,7 +3867,7 @@ Clay_ScrollContainerData Clay_GetScrollContainerData(Clay_ElementId id) {
             };
         }
     }
-    return CLAY__INIT(Clay_ScrollContainerData) {0};
+    return CLAY__INIT(Clay_ScrollContainerData) CLAY__DEFAULT_STRUCT;
 }
 
 CLAY_WASM_EXPORT("Clay_SetDebugModeEnabled")

examples/clay-official-website/build/clay/index.html

@@ -0,0 +1,789 @@
+<!DOCTYPE html>
+<html>
+<head>
+    <meta charset="utf-8">
+    <meta http-equiv="Content-Type" content="text/html; charset=utf-8">
+    <meta name="viewport" content="width=device-width, initial-scale=1" />
+    <link rel="preload" href="/clay/fonts/Calistoga-Regular.ttf" as="font" type="font/ttf" crossorigin>
+    <link rel="preload" href="/clay/fonts/Quicksand-Semibold.ttf" as="font" type="font/ttf" crossorigin>
+    <title>Clay - UI Layout Library</title>
+    <style>
+        html, body {
+            width: 100%;
+            height: 100%;
+            overflow: hidden;
+            padding: 0;
+            margin: 0;
+            pointer-events: none;
+            background: rgb(244, 235, 230);
+        }
+        /* Import the font using @font-face */
+        @font-face {
+          font-family: 'Calistoga';
+          font-style: normal;
+          font-weight: 400;
+          src: url('/clay/fonts/Calistoga-Regular.ttf') format('truetype');
+        }
+
+        @font-face {
+          font-family: 'Quicksand';
+          font-style: normal;
+          font-weight: 400;
+          src: url('/clay/fonts/Quicksand-Semibold.ttf') format('truetype');
+        }
+
+        body > canvas {
+            width: 100%;
+            height: 100%;
+            touch-action: none;
+        }
+
+        div, a, img {
+            position: absolute;
+            box-sizing: border-box;
+            -webkit-backface-visibility: hidden;
+            pointer-events: none;
+        }
+
+        a {
+            cursor: pointer;
+            pointer-events: all;
+        }
+
+        .text {
+            pointer-events: all;
+            white-space: pre;
+        }
+
+        /* TODO special exception for text selection in debug tools */
+        [id='2067877626'] > * {
+            pointer-events: none !important;
+        }
+    </style>
+</head>
+<script type="module">
+    const CLAY_RENDER_COMMAND_TYPE_NONE = 0;
+    const CLAY_RENDER_COMMAND_TYPE_RECTANGLE = 1;
+    const CLAY_RENDER_COMMAND_TYPE_BORDER = 2;
+    const CLAY_RENDER_COMMAND_TYPE_TEXT = 3;
+    const CLAY_RENDER_COMMAND_TYPE_IMAGE = 4;
+    const CLAY_RENDER_COMMAND_TYPE_SCISSOR_START = 5;
+    const CLAY_RENDER_COMMAND_TYPE_SCISSOR_END = 6;
+    const CLAY_RENDER_COMMAND_TYPE_CUSTOM = 7;
+    const GLOBAL_FONT_SCALING_FACTOR = 0.8;
+    let renderCommandSize = 0;
+    let scratchSpaceAddress = 8;
+    let heapSpaceAddress = 0;
+    let memoryDataView;
+    let textDecoder = new TextDecoder("utf-8");
+    let previousFrameTime;
+    let fontsById = [
+        'Quicksand',
+        'Calistoga',
+        'Quicksand',
+        'Quicksand',
+        'Quicksand',
+    ];
+    let elementCache = {};
+    let imageCache = {};
+    let colorDefinition = { type: 'struct', members: [
+        {name: 'r', type: 'float' },
+        {name: 'g', type: 'float' },
+        {name: 'b', type: 'float' },
+        {name: 'a', type: 'float' },
+    ]};
+    let stringDefinition = { type: 'struct', members: [
+        {name: 'length', type: 'uint32_t' },
+        {name: 'chars', type: 'uint32_t' },
+    ]};
+    let borderDefinition = { type: 'struct', members: [
+        {name: 'width', type: 'uint32_t'},
+        {name: 'color', ...colorDefinition},
+    ]};
+    let cornerRadiusDefinition = { type: 'struct', members: [
+        {name: 'topLeft', type: 'float'},
+        {name: 'topRight', type: 'float'},
+        {name: 'bottomLeft', type: 'float'},
+        {name: 'bottomRight', type: 'float'},
+    ]};
+    let rectangleConfigDefinition = { name: 'rectangle', type: 'struct', members: [
+        { name: 'color', ...colorDefinition },
+        { name: 'cornerRadius', ...cornerRadiusDefinition },
+        { name: 'link', ...stringDefinition },
+        { name: 'cursorPointer', type: 'uint8_t' },
+    ]};
+    let borderConfigDefinition = { name: 'text', type: 'struct', members: [
+        { name: 'left', ...borderDefinition },
+        { name: 'right', ...borderDefinition },
+        { name: 'top', ...borderDefinition },
+        { name: 'bottom', ...borderDefinition },
+        { name: 'betweenChildren', ...borderDefinition },
+        { name: 'cornerRadius', ...cornerRadiusDefinition }
+    ]};
+    let textConfigDefinition = { name: 'text', type: 'struct', members: [
+       { name: 'textColor', ...colorDefinition },
+       { name: 'fontId', type: 'uint16_t' },
+       { name: 'fontSize', type: 'uint16_t' },
+       { name: 'letterSpacing', type: 'uint16_t' },
+       { name: 'lineSpacing', type: 'uint16_t' },
+       { name: 'wrapMode', type: 'uint32_t' },
+       { name: 'disablePointerEvents', type: 'uint8_t' }
+    ]};
+    let scrollConfigDefinition = { name: 'text', type: 'struct', members: [
+        { name: 'horizontal', type: 'bool' },
+        { name: 'vertical', type: 'bool' },
+    ]};
+    let imageConfigDefinition = { name: 'image', type: 'struct', members: [
+        { name: 'imageData', type: 'uint32_t' },
+        { name: 'sourceDimensions', type: 'struct', members: [
+            { name: 'width', type: 'float' },
+            { name: 'height', type: 'float' },
+        ]},
+        { name: 'sourceURL', ...stringDefinition }
+    ]};
+    let customConfigDefinition = { name: 'custom', type: 'struct', members: [
+        { name: 'customData', type: 'uint32_t' },
+    ]}
+    let renderCommandDefinition = {
+        name: 'CLay_RenderCommand',
+        type: 'struct',
+        members: [
+            { name: 'boundingBox', type: 'struct', members: [
+                { name: 'x', type: 'float' },
+                { name: 'y', type: 'float' },
+                { name: 'width', type: 'float' },
+                { name: 'height', type: 'float' },
+            ]},
+            { name: 'config', type: 'uint32_t'},
+            { name: 'text', ...stringDefinition },
+            { name: 'id', type: 'uint32_t' },
+            { name: 'commandType', type: 'uint32_t', },
+        ]
+    };
+
+    function getStructTotalSize(definition) {
+        switch(definition.type) {
+            case 'union':
+            case 'struct': {
+                let totalSize = 0;
+                for (const member of definition.members) {
+                    let result = getStructTotalSize(member);
+                    if (definition.type === 'struct') {
+                        totalSize += result;
+                    } else {
+                        totalSize = Math.max(totalSize, result);
+                    }
+                }
+                return totalSize;
+            }
+            case 'float': return 4;
+            case 'uint32_t': return 4;
+            case 'int32_t': return 4;
+            case 'uint16_t': return 2;
+            case 'uint8_t': return 1;
+            case 'bool': return 1;
+            default: {
+                throw "Unimplemented C data type " + definition.type
+            }
+        }
+    }
+
+    function readStructAtAddress(address, definition) {
+        switch(definition.type) {
+            case 'union':
+            case 'struct': {
+                let struct = { __size: 0 };
+                for (const member of definition.members) {
+                    let result = readStructAtAddress(address, member);
+                    struct[member.name] = result;
+                    if (definition.type === 'struct') {
+                        struct.__size += result.__size;
+                        address += result.__size;
+                    } else {
+                        struct.__size = Math.max(struct.__size, result.__size);
+                    }
+                }
+                return struct;
+            }
+            case 'float': return { value: memoryDataView.getFloat32(address, true), __size: 4 };
+            case 'uint32_t': return { value: memoryDataView.getUint32(address, true), __size: 4 };
+            case 'int32_t': return { value: memoryDataView.getUint32(address, true), __size: 4 };
+            case 'uint16_t': return { value: memoryDataView.getUint16(address, true), __size: 2 };
+            case 'uint8_t': return { value: memoryDataView.getUint8(address, true), __size: 1 };
+            case 'bool': return { value: memoryDataView.getUint8(address, true), __size: 1 };
+            default: {
+                throw "Unimplemented C data type " + definition.type
+            }
+        }
+    }
+
+    function getTextDimensions(text, font) {
+        // re-use canvas object for better performance
+        window.canvasContext.font = font;
+        let metrics = window.canvasContext.measureText(text);
+        return { width: metrics.width, height: metrics.fontBoundingBoxAscent + metrics.fontBoundingBoxDescent };
+    }
+
+    function createMainArena(arenaStructAddress, arenaMemoryAddress) {
+        let memorySize = instance.exports.Clay_MinMemorySize();
+        // Last arg is address to store return value
+        instance.exports.Clay_CreateArenaWithCapacityAndMemory(arenaStructAddress, memorySize, arenaMemoryAddress);
+    }
+    async function init() {
+        await Promise.all(fontsById.map(f => document.fonts.load(`12px "${f}"`)));
+        window.htmlRoot = document.body.appendChild(document.createElement('div'));
+        window.canvasRoot = document.body.appendChild(document.createElement('canvas'));
+        window.canvasContext = window.canvasRoot.getContext("2d");
+        window.mousePositionXThisFrame = 0;
+        window.mousePositionYThisFrame = 0;
+        window.mouseWheelXThisFrame = 0;
+        window.mouseWheelYThisFrame = 0;
+        window.touchDown = false;
+        window.arrowKeyDownPressedThisFrame = false;
+        window.arrowKeyUpPressedThisFrame = false;
+        let zeroTimeout = null;
+        document.addEventListener("wheel", (event) => {
+            window.mouseWheelXThisFrame = event.deltaX * -0.1;
+            window.mouseWheelYThisFrame = event.deltaY * -0.1;
+            clearTimeout(zeroTimeout);
+            zeroTimeout = setTimeout(() => {
+                window.mouseWheelXThisFrame = 0;
+                window.mouseWheelYThisFrame = 0;
+            }, 10);
+        });
+
+        function handleTouch (event) {
+            if (event.touches.length === 1) {
+                window.touchDown = true;
+                let target = event.target;
+                let scrollTop = 0;
+                let scrollLeft = 0;
+                let activeRendererIndex = memoryDataView.getUint32(instance.exports.ACTIVE_RENDERER_INDEX.value, true);
+                while (activeRendererIndex !== 1 && target) {
+                    scrollLeft += target.scrollLeft;
+                    scrollTop += target.scrollTop;
+                    target = target.parentElement;
+                }
+                window.mousePositionXThisFrame = event.changedTouches[0].pageX + scrollLeft;
+                window.mousePositionYThisFrame = event.changedTouches[0].pageY + scrollTop;
+            }
+        }
+
+        document.addEventListener("touchstart", handleTouch);
+        document.addEventListener("touchmove", handleTouch);
+        document.addEventListener("touchend", () => {
+            window.touchDown = false;
+            window.mousePositionXThisFrame = 0;
+            window.mousePositionYThisFrame = 0;
+        })
+
+        document.addEventListener("mousemove", (event) => {
+            let target = event.target;
+            let scrollTop = 0;
+            let scrollLeft = 0;
+            let activeRendererIndex = memoryDataView.getUint32(instance.exports.ACTIVE_RENDERER_INDEX.value, true);
+            while (activeRendererIndex !== 1 && target) {
+                scrollLeft += target.scrollLeft;
+                scrollTop += target.scrollTop;
+                target = target.parentElement;
+            }
+            window.mousePositionXThisFrame = event.x + scrollLeft;
+            window.mousePositionYThisFrame = event.y + scrollTop;
+        });
+
+        document.addEventListener("mousedown", (event) => {
+            window.mouseDown = true;
+            window.mouseDownThisFrame = true;
+        });
+
+        document.addEventListener("mouseup", (event) => {
+            window.mouseDown = false;
+        });
+
+        document.addEventListener("keydown", (event) => {
+            if (event.key === "ArrowDown") {
+                window.arrowKeyDownPressedThisFrame = true;
+            }
+            if (event.key === "ArrowUp") {
+                window.arrowKeyUpPressedThisFrame = true;
+            }
+            if (event.key === "d") {
+                window.dKeyPressedThisFrame = true;
+            }
+        });
+
+        const importObject = {
+            clay: {
+                measureTextFunction: (addressOfDimensions, textToMeasure, addressOfConfig) => {
+                    let stringLength = memoryDataView.getUint32(textToMeasure, true);
+                    let pointerToString = memoryDataView.getUint32(textToMeasure + 4, true);
+                    let textConfig = readStructAtAddress(addressOfConfig, textConfigDefinition);
+                    let textDecoder = new TextDecoder("utf-8");
+                    let text = textDecoder.decode(memoryDataView.buffer.slice(pointerToString, pointerToString + stringLength));
+                    let sourceDimensions = getTextDimensions(text, `${Math.round(textConfig.fontSize.value * GLOBAL_FONT_SCALING_FACTOR)}px ${fontsById[textConfig.fontId.value]}`);
+                    memoryDataView.setFloat32(addressOfDimensions, sourceDimensions.width, true);
+                    memoryDataView.setFloat32(addressOfDimensions + 4, sourceDimensions.height, true);
+                },
+                queryScrollOffsetFunction: (addressOfOffset, elementId) => {
+                    let container = document.getElementById(elementId.toString());
+                    if (container) {
+                        memoryDataView.setFloat32(addressOfOffset, -container.scrollLeft, true);
+                        memoryDataView.setFloat32(addressOfOffset + 4, -container.scrollTop, true);
+                    }
+                }
+            },
+        };
+        const { instance } = await WebAssembly.instantiateStreaming(
+            fetch("/clay/index.wasm"), importObject
+        );
+        memoryDataView = new DataView(new Uint8Array(instance.exports.memory.buffer).buffer);
+        scratchSpaceAddress = instance.exports.__heap_base.value;
+        heapSpaceAddress = instance.exports.__heap_base.value + 1024;
+        let arenaAddress = scratchSpaceAddress + 8;
+        window.instance = instance;
+        createMainArena(arenaAddress, heapSpaceAddress);
+        memoryDataView.setFloat32(instance.exports.__heap_base.value, window.innerWidth, true);
+        memoryDataView.setFloat32(instance.exports.__heap_base.value + 4, window.innerHeight, true);
+        instance.exports.Clay_Initialize(arenaAddress, instance.exports.__heap_base.value);
+        renderCommandSize = getStructTotalSize(renderCommandDefinition);
+        renderLoop();
+    }
+
+    function MemoryIsDifferent(one, two, length) {
+        for (let i = 0; i < length; i++) {
+            if (one[i] !== two[i]) {
+                return true;
+            }
+        }
+        return false;
+    }
+
+    function renderLoopHTML() {
+        let capacity = memoryDataView.getInt32(scratchSpaceAddress, true);
+        let length = memoryDataView.getInt32(scratchSpaceAddress + 4, true);
+        let arrayOffset = memoryDataView.getUint32(scratchSpaceAddress + 8, true);
+        let scissorStack = [{ nextAllocation: { x: 0, y: 0 }, element: htmlRoot, nextElementIndex: 0 }];
+        let previousId = 0;
+        for (let i = 0; i < length; i++, arrayOffset += renderCommandSize) {
+            let entireRenderCommandMemory = new Uint32Array(memoryDataView.buffer.slice(arrayOffset, arrayOffset + renderCommandSize));
+            let renderCommand = readStructAtAddress(arrayOffset, renderCommandDefinition);
+            let parentElement = scissorStack[scissorStack.length - 1];
+            let element = null;
+            let isMultiConfigElement = previousId === renderCommand.id.value;
+            if (!elementCache[renderCommand.id.value]) {
+                let elementType = 'div';
+                switch (renderCommand.commandType.value) {
+                    case CLAY_RENDER_COMMAND_TYPE_RECTANGLE: {
+                        if (readStructAtAddress(renderCommand.config.value, rectangleConfigDefinition).link.length.value > 0) {
+                            elementType = 'a';
+                        }
+                        break;
+                    }
+                    case CLAY_RENDER_COMMAND_TYPE_IMAGE: {
+                        elementType = 'img'; break;
+                    }
+                    default: break;
+                }
+                element = document.createElement(elementType);
+                element.id = renderCommand.id.value;
+                if (renderCommand.commandType.value === CLAY_RENDER_COMMAND_TYPE_SCISSOR_START) {
+                    element.style.overflow = 'hidden';
+                }
+                elementCache[renderCommand.id.value] = {
+                    exists: true,
+                    element: element,
+                    previousMemoryCommand: new Uint8Array(0),
+                    previousMemoryConfig: new Uint8Array(0),
+                    previousMemoryText: new Uint8Array(0)
+                };
+            }
+
+            let elementData = elementCache[renderCommand.id.value];
+            element = elementData.element;
+            if (!isMultiConfigElement && Array.prototype.indexOf.call(parentElement.element.children, element) !== parentElement.nextElementIndex) {
+                if (parentElement.nextElementIndex === 0) {
+                    parentElement.element.insertAdjacentElement('afterbegin', element);
+                } else {
+                    parentElement.element.childNodes[Math.min(parentElement.nextElementIndex - 1, parentElement.element.childNodes.length - 1)].insertAdjacentElement('afterend', element);
+                }
+            }
+
+            elementData.exists = true;
+            // Don't get me started. Cheaper to compare the render command memory than to update HTML elements
+            let dirty = MemoryIsDifferent(elementData.previousMemoryCommand, entireRenderCommandMemory, renderCommandSize) && !isMultiConfigElement;
+            if (!isMultiConfigElement) {
+                parentElement.nextElementIndex++;
+            }
+
+            previousId = renderCommand.id.value;
+
+            elementData.previousMemoryCommand = entireRenderCommandMemory;
+            let offsetX = scissorStack.length > 0 ? scissorStack[scissorStack.length - 1].nextAllocation.x : 0;
+            let offsetY = scissorStack.length > 0 ? scissorStack[scissorStack.length - 1].nextAllocation.y : 0;
+            if (dirty) {
+                element.style.transform = `translate(${Math.round(renderCommand.boundingBox.x.value - offsetX)}px, ${Math.round(renderCommand.boundingBox.y.value - offsetY)}px)`
+                element.style.width = Math.round(renderCommand.boundingBox.width.value) + 'px';
+                element.style.height = Math.round(renderCommand.boundingBox.height.value) + 'px';
+            }
+
+            // note: commandType is packed to uint8_t and has 3 garbage bytes of padding
+            switch(renderCommand.commandType.value & 0xff) {
+                case (CLAY_RENDER_COMMAND_TYPE_NONE): {
+                    break;
+                }
+                case (CLAY_RENDER_COMMAND_TYPE_RECTANGLE): {
+                    let config = readStructAtAddress(renderCommand.config.value, rectangleConfigDefinition);
+                    let configMemory = new Uint8Array(memoryDataView.buffer.slice(renderCommand.config.value, renderCommand.config.value + config.__size));
+                    let linkContents = config.link.length.value > 0 ? textDecoder.decode(new Uint8Array(memoryDataView.buffer.slice(config.link.chars.value, config.link.chars.value + config.link.length.value))) : 0;
+                    memoryDataView.setUint32(0, renderCommand.id.value, true);
+                    if (linkContents.length > 0 && (window.mouseDownThisFrame || window.touchDown) && instance.exports.Clay_PointerOver(0)) {
+                        window.location.href = linkContents;
+                    }
+                    if (!dirty && !MemoryIsDifferent(configMemory, elementData.previousMemoryConfig, config.__size)) {
+                        break;
+                    }
+                    if (linkContents.length > 0) {
+                        element.href = linkContents;
+                    }
+
+                    if (linkContents.length > 0 || config.cursorPointer.value) {
+                        element.style.pointerEvents = 'all';
+                        element.style.cursor = 'pointer';
+                    }
+                    elementData.previousMemoryConfig = configMemory;
+                    let color = config.color;
+                    element.style.backgroundColor = `rgba(${color.r.value}, ${color.g.value}, ${color.b.value}, ${color.a.value / 255})`;
+                    if (config.cornerRadius.topLeft.value > 0) {
+                        element.style.borderTopLeftRadius = config.cornerRadius.topLeft.value + 'px';
+                    }
+                    if (config.cornerRadius.topRight.value > 0) {
+                        element.style.borderTopRightRadius = config.cornerRadius.topRight.value + 'px';
+                    }
+                    if (config.cornerRadius.bottomLeft.value > 0) {
+                        element.style.borderBottomLeftRadius = config.cornerRadius.bottomLeft.value + 'px';
+                    }
+                    if (config.cornerRadius.bottomRight.value > 0) {
+                        element.style.borderBottomRightRadius = config.cornerRadius.bottomRight.value + 'px';
+                    }
+                    break;
+                }
+                case (CLAY_RENDER_COMMAND_TYPE_BORDER): {
+                    let config = readStructAtAddress(renderCommand.config.value, borderConfigDefinition);
+                    let configMemory = new Uint8Array(memoryDataView.buffer.slice(renderCommand.config.value, renderCommand.config.value + config.__size));
+                    if (!dirty && !MemoryIsDifferent(configMemory, elementData.previousMemoryConfig, config.__size)) {
+                        break;
+                    }
+                    elementData.previousMemoryConfig = configMemory;
+                    if (config.left.width.value > 0) {
+                        let color = config.left.color;
+                        element.style.borderLeft = `${config.left.width.value}px solid rgba(${color.r.value}, ${color.g.value}, ${color.b.value}, ${color.a.value / 255})`
+                    }
+                    if (config.right.width.value > 0) {
+                        let color = config.right.color;
+                        element.style.borderRight = `${config.right.width.value}px solid rgba(${color.r.value}, ${color.g.value}, ${color.b.value}, ${color.a.value / 255})`
+                    }
+                    if (config.top.width.value > 0) {
+                        let color = config.top.color;
+                        element.style.borderTop = `${config.top.width.value}px solid rgba(${color.r.value}, ${color.g.value}, ${color.b.value}, ${color.a.value / 255})`
+                    }
+                    if (config.bottom.width.value > 0) {
+                        let color = config.bottom.color;
+                        element.style.borderBottom = `${config.bottom.width.value}px solid rgba(${color.r.value}, ${color.g.value}, ${color.b.value}, ${color.a.value / 255})`
+                    }
+                    if (config.cornerRadius.topLeft.value > 0) {
+                        element.style.borderTopLeftRadius = config.cornerRadius.topLeft.value + 'px';
+                    }
+                    if (config.cornerRadius.topRight.value > 0) {
+                        element.style.borderTopRightRadius = config.cornerRadius.topRight.value + 'px';
+                    }
+                    if (config.cornerRadius.bottomLeft.value > 0) {
+                        element.style.borderBottomLeftRadius = config.cornerRadius.bottomLeft.value + 'px';
+                    }
+                    if (config.cornerRadius.bottomRight.value > 0) {
+                        element.style.borderBottomRightRadius = config.cornerRadius.bottomRight.value + 'px';
+                    }
+                    break;
+                }
+                case (CLAY_RENDER_COMMAND_TYPE_TEXT): {
+                    let config = readStructAtAddress(renderCommand.config.value, textConfigDefinition);
+                    let configMemory = new Uint8Array(memoryDataView.buffer.slice(renderCommand.config.value, renderCommand.config.value + config.__size));
+                    let textContents = renderCommand.text;
+                    let stringContents = new Uint8Array(memoryDataView.buffer.slice(textContents.chars.value, textContents.chars.value + textContents.length.value));
+                    if (MemoryIsDifferent(configMemory, elementData.previousMemoryConfig, config.__size)) {
+                        element.className = 'text';
+                        let textColor = config.textColor;
+                        let fontSize = Math.round(config.fontSize.value * GLOBAL_FONT_SCALING_FACTOR);
+                        element.style.color = `rgba(${textColor.r.value}, ${textColor.g.value}, ${textColor.b.value}, ${textColor.a.value})`;
+                        element.style.fontFamily = fontsById[config.fontId.value];
+                        element.style.fontSize = fontSize + 'px';
+                        element.style.pointerEvents = config.disablePointerEvents.value ? 'none' : 'all';
+                        elementData.previousMemoryConfig = configMemory;
+                    }
+                    if (stringContents.length !== elementData.previousMemoryText.length || MemoryIsDifferent(stringContents, elementData.previousMemoryText, stringContents.length)) {
+                        element.innerHTML = textDecoder.decode(stringContents);
+                    }
+                    elementData.previousMemoryText = stringContents;
+                    break;
+                }
+                case (CLAY_RENDER_COMMAND_TYPE_SCISSOR_START): {
+                    scissorStack.push({ nextAllocation: { x: renderCommand.boundingBox.x.value, y: renderCommand.boundingBox.y.value }, element, nextElementIndex: 0 });
+                    let config = readStructAtAddress(renderCommand.config.value, scrollConfigDefinition);
+                    if (config.horizontal.value) {
+                        element.style.overflowX = 'scroll';
+                        element.style.pointerEvents = 'auto';
+                    }
+                    if (config.vertical.value) {
+                        element.style.overflowY = 'scroll';
+                        element.style.pointerEvents = 'auto';
+                    }
+                    break;
+                }
+                case (CLAY_RENDER_COMMAND_TYPE_SCISSOR_END): {
+                    scissorStack.splice(scissorStack.length - 1, 1);
+                    break;
+                }
+                case (CLAY_RENDER_COMMAND_TYPE_IMAGE): {
+                    let config = readStructAtAddress(renderCommand.config.value, imageConfigDefinition);
+                    let srcContents = new Uint8Array(memoryDataView.buffer.slice(config.sourceURL.chars.value, config.sourceURL.chars.value + config.sourceURL.length.value));
+                    if (srcContents.length !== elementData.previousMemoryText.length || MemoryIsDifferent(srcContents, elementData.previousMemoryText, srcContents.length)) {
+                        element.src = textDecoder.decode(srcContents);
+                    }
+                    elementData.previousMemoryText = srcContents;
+                    break;
+                }
+                case (CLAY_RENDER_COMMAND_TYPE_CUSTOM): break;
+            }
+        }
+
+        for (const key of Object.keys(elementCache)) {
+            if (elementCache[key].exists) {
+                elementCache[key].exists = false;
+            } else {
+                elementCache[key].element.remove();
+                delete elementCache[key];
+            }
+        }
+    }
+
+    function renderLoopCanvas() {
+    // Note: Rendering to canvas needs to be scaled up by window.devicePixelRatio in both width and height.
+    // e.g. if we're working on a device where devicePixelRatio is 2, we need to render
+    // everything at width^2 x height^2 resolution, then scale back down with css to get the correct pixel density.
+        let capacity = memoryDataView.getUint32(scratchSpaceAddress, true);
+        let length = memoryDataView.getUint32(scratchSpaceAddress + 4, true);
+        let arrayOffset = memoryDataView.getUint32(scratchSpaceAddress + 8, true);
+        window.canvasRoot.width = window.innerWidth * window.devicePixelRatio;
+        window.canvasRoot.height = window.innerHeight * window.devicePixelRatio;
+        window.canvasRoot.style.width = window.innerWidth + 'px';
+        window.canvasRoot.style.height = window.innerHeight + 'px';
+        let ctx = window.canvasContext;
+        let scale = window.devicePixelRatio;
+        for (let i = 0; i < length; i++, arrayOffset += renderCommandSize) {
+            let renderCommand = readStructAtAddress(arrayOffset, renderCommandDefinition);
+            let boundingBox = renderCommand.boundingBox;
+            
+            // note: commandType is packed to uint8_t and has 3 garbage bytes of padding
+            switch(renderCommand.commandType.value & 0xff) {
+                case (CLAY_RENDER_COMMAND_TYPE_NONE): {
+                    break;
+                }
+                case (CLAY_RENDER_COMMAND_TYPE_RECTANGLE): {
+                    let config = readStructAtAddress(renderCommand.config.value, rectangleConfigDefinition);
+                    let color = config.color;
+                    ctx.beginPath();
+                    window.canvasContext.fillStyle = `rgba(${color.r.value}, ${color.g.value}, ${color.b.value}, ${color.a.value / 255})`;
+                    window.canvasContext.roundRect(
+                        boundingBox.x.value * scale, // x
+                        boundingBox.y.value * scale, // y
+                        boundingBox.width.value * scale, // width
+                        boundingBox.height.value * scale,
+                        [config.cornerRadius.topLeft.value * scale, config.cornerRadius.topRight.value * scale, config.cornerRadius.bottomRight.value * scale, config.cornerRadius.bottomLeft.value * scale]) // height;
+                    ctx.fill();
+                    ctx.closePath();
+                    // Handle link clicks
+                    let linkContents = config.link.length.value > 0 ? textDecoder.decode(new Uint8Array(memoryDataView.buffer.slice(config.link.chars.value, config.link.chars.value + config.link.length.value))) : 0;
+                    memoryDataView.setUint32(0, renderCommand.id.value, true);
+                    if (linkContents.length > 0 && (window.mouseDownThisFrame || window.touchDown) && instance.exports.Clay_PointerOver(0)) {
+                        window.location.href = linkContents;
+                    }
+                    break;
+                }
+                case (CLAY_RENDER_COMMAND_TYPE_BORDER): {
+                    let config = readStructAtAddress(renderCommand.config.value, borderConfigDefinition);
+                    ctx.beginPath();
+                    ctx.moveTo(boundingBox.x.value * scale, boundingBox.y.value * scale);
+                    // Top Left Corner
+                    if (config.cornerRadius.topLeft.value > 0) {
+                        let lineWidth = config.top.width.value;
+                        let halfLineWidth = lineWidth / 2;
+                        ctx.moveTo((boundingBox.x.value + halfLineWidth) * scale, (boundingBox.y.value + config.cornerRadius.topLeft.value + halfLineWidth) * scale);
+                        let color = config.top.color;
+                        ctx.lineWidth = lineWidth * scale;
+                        ctx.strokeStyle = `rgba(${color.r.value}, ${color.g.value}, ${color.b.value}, ${color.a.value / 255})`;
+                        ctx.arcTo((boundingBox.x.value + halfLineWidth) * scale, (boundingBox.y.value + halfLineWidth) * scale, (boundingBox.x.value + config.cornerRadius.topLeft.value + halfLineWidth) * scale, (boundingBox.y.value + halfLineWidth) * scale, config.cornerRadius.topLeft.value * scale);
+                        ctx.stroke();
+                    }
+                    // Top border
+                    if (config.top.width.value > 0) {
+                        let lineWidth = config.top.width.value;
+                        let halfLineWidth = lineWidth / 2;
+                        let color = config.top.color;
+                        ctx.lineWidth = lineWidth * scale;
+                        ctx.strokeStyle = `rgba(${color.r.value}, ${color.g.value}, ${color.b.value}, ${color.a.value / 255})`;
+                        ctx.moveTo((boundingBox.x.value + config.cornerRadius.topLeft.value + halfLineWidth) * scale, (boundingBox.y.value + halfLineWidth) * scale);
+                        ctx.lineTo((boundingBox.x.value + boundingBox.width.value - config.cornerRadius.topRight.value - halfLineWidth) * scale, (boundingBox.y.value + halfLineWidth) * scale);
+                        ctx.stroke();
+                    }
+                    // Top Right Corner
+                    if (config.cornerRadius.topRight.value > 0) {
+                        let lineWidth = config.top.width.value;
+                        let halfLineWidth = lineWidth / 2;
+                        ctx.moveTo((boundingBox.x.value + boundingBox.width.value - config.cornerRadius.topRight.value - halfLineWidth) * scale, (boundingBox.y.value + halfLineWidth) * scale);
+                        let color = config.top.color;
+                        ctx.lineWidth = lineWidth * scale;
+                        ctx.strokeStyle = `rgba(${color.r.value}, ${color.g.value}, ${color.b.value}, ${color.a.value / 255})`;
+                        ctx.arcTo((boundingBox.x.value + boundingBox.width.value - halfLineWidth) * scale, (boundingBox.y.value + halfLineWidth) * scale, (boundingBox.x.value + boundingBox.width.value - halfLineWidth) * scale, (boundingBox.y.value + config.cornerRadius.topRight.value + halfLineWidth) * scale, config.cornerRadius.topRight.value * scale);
+                        ctx.stroke();
+                    }
+                    // Right border
+                    if (config.right.width.value > 0) {
+                        let color = config.right.color;
+                        let lineWidth = config.right.width.value;
+                        let halfLineWidth = lineWidth / 2;
+                        ctx.lineWidth = lineWidth * scale;
+                        ctx.strokeStyle = `rgba(${color.r.value}, ${color.g.value}, ${color.b.value}, ${color.a.value / 255})`;
+                        ctx.moveTo((boundingBox.x.value + boundingBox.width.value - halfLineWidth) * scale, (boundingBox.y.value + config.cornerRadius.topRight.value + halfLineWidth) * scale);
+                        ctx.lineTo((boundingBox.x.value + boundingBox.width.value - halfLineWidth) * scale, (boundingBox.y.value + boundingBox.height.value - config.cornerRadius.topRight.value - halfLineWidth) * scale);
+                        ctx.stroke();
+                    }
+                    // Bottom Right Corner
+                    if (config.cornerRadius.bottomRight.value > 0) {
+                        let color = config.top.color;
+                        let lineWidth = config.top.width.value;
+                        let halfLineWidth = lineWidth / 2;
+                        ctx.moveTo((boundingBox.x.value + boundingBox.width.value - halfLineWidth) * scale, (boundingBox.y.value + boundingBox.height.value - config.cornerRadius.bottomRight.value - halfLineWidth) * scale);
+                        ctx.lineWidth = lineWidth * scale;
+                        ctx.strokeStyle = `rgba(${color.r.value}, ${color.g.value}, ${color.b.value}, ${color.a.value / 255})`;
+                        ctx.arcTo((boundingBox.x.value + boundingBox.width.value - halfLineWidth) * scale, (boundingBox.y.value + boundingBox.height.value - halfLineWidth) * scale, (boundingBox.x.value + boundingBox.width.value - config.cornerRadius.bottomRight.value - halfLineWidth) * scale, (boundingBox.y.value + boundingBox.height.value - halfLineWidth) * scale, config.cornerRadius.bottomRight.value * scale);
+                        ctx.stroke();
+                    }
+                    // Bottom Border
+                    if (config.bottom.width.value > 0) {
+                        let color = config.bottom.color;
+                        let lineWidth = config.bottom.width.value;
+                        let halfLineWidth = lineWidth / 2;
+                        ctx.lineWidth = lineWidth * scale;
+                        ctx.strokeStyle = `rgba(${color.r.value}, ${color.g.value}, ${color.b.value}, ${color.a.value / 255})`;
+                        ctx.moveTo((boundingBox.x.value + config.cornerRadius.bottomLeft.value + halfLineWidth) * scale, (boundingBox.y.value + boundingBox.height.value - halfLineWidth) * scale);
+                        ctx.lineTo((boundingBox.x.value + boundingBox.width.value - config.cornerRadius.bottomRight.value - halfLineWidth) * scale, (boundingBox.y.value + boundingBox.height.value - halfLineWidth) * scale);
+                        ctx.stroke();
+                    }
+                    // Bottom Left Corner
+                    if (config.cornerRadius.bottomLeft.value > 0) {
+                        let color = config.bottom.color;
+                        let lineWidth = config.bottom.width.value;
+                        let halfLineWidth = lineWidth / 2;
+                        ctx.moveTo((boundingBox.x.value + config.cornerRadius.bottomLeft.value + halfLineWidth) * scale, (boundingBox.y.value + boundingBox.height.value - halfLineWidth) * scale);
+                        ctx.lineWidth = lineWidth * scale;
+                        ctx.strokeStyle = `rgba(${color.r.value}, ${color.g.value}, ${color.b.value}, ${color.a.value / 255})`;
+                        ctx.arcTo((boundingBox.x.value + halfLineWidth) * scale, (boundingBox.y.value + boundingBox.height.value - halfLineWidth) * scale, (boundingBox.x.value + halfLineWidth) * scale, (boundingBox.y.value + boundingBox.height.value - config.cornerRadius.bottomLeft.value - halfLineWidth) * scale, config.cornerRadius.bottomLeft.value * scale);
+                        ctx.stroke();
+                    }
+                    // Left Border
+                    if (config.left.width.value > 0) {
+                        let color = config.left.color;
+                        let lineWidth = config.left.width.value;
+                        let halfLineWidth = lineWidth / 2;
+                        ctx.lineWidth = lineWidth * scale;
+                        ctx.strokeStyle = `rgba(${color.r.value}, ${color.g.value}, ${color.b.value}, ${color.a.value / 255})`;
+                        ctx.moveTo((boundingBox.x.value + halfLineWidth) * scale, (boundingBox.y.value + boundingBox.height.value - config.cornerRadius.bottomLeft.value - halfLineWidth) * scale);
+                        ctx.lineTo((boundingBox.x.value + halfLineWidth) * scale, (boundingBox.y.value + config.cornerRadius.bottomRight.value + halfLineWidth) * scale);
+                        ctx.stroke();
+                    }
+                    ctx.closePath();
+                    break;
+                }
+                case (CLAY_RENDER_COMMAND_TYPE_TEXT): {
+                    let config = readStructAtAddress(renderCommand.config.value, textConfigDefinition);
+                    let textContents = renderCommand.text;
+                    let stringContents = new Uint8Array(memoryDataView.buffer.slice(textContents.chars.value, textContents.chars.value + textContents.length.value));
+                    let fontSize = config.fontSize.value * GLOBAL_FONT_SCALING_FACTOR * scale;
+                    ctx.font = `${fontSize}px ${fontsById[config.fontId.value]}`;
+                    let color = config.textColor;
+                    ctx.textBaseline = 'middle';
+                    ctx.fillStyle = `rgba(${color.r.value}, ${color.g.value}, ${color.b.value}, ${color.a.value / 255})`;
+                    ctx.fillText(textDecoder.decode(stringContents), boundingBox.x.value * scale, (boundingBox.y.value + boundingBox.height.value / 2 + 1) * scale);
+                    break;
+                }
+                case (CLAY_RENDER_COMMAND_TYPE_SCISSOR_START): {
+                    window.canvasContext.save();
+                    window.canvasContext.beginPath();
+                    window.canvasContext.rect(boundingBox.x.value * scale, boundingBox.y.value * scale, boundingBox.width.value * scale, boundingBox.height.value * scale);
+                    window.canvasContext.clip();
+                    window.canvasContext.closePath();
+                    break;
+                }
+                case (CLAY_RENDER_COMMAND_TYPE_SCISSOR_END): {
+                    window.canvasContext.restore();
+                    break;
+                }
+                case (CLAY_RENDER_COMMAND_TYPE_IMAGE): {
+                    let config = readStructAtAddress(renderCommand.config.value, imageConfigDefinition);
+                    let src = textDecoder.decode(new Uint8Array(memoryDataView.buffer.slice(config.sourceURL.chars.value, config.sourceURL.chars.value + config.sourceURL.length.value)));
+                    if (!imageCache[src]) {
+                        imageCache[src] = {
+                            image: new Image(),
+                            loaded: false,
+                        }
+                        imageCache[src].image.onload = () => imageCache[src].loaded = true;
+                        imageCache[src].image.src = src;
+                    } else if (imageCache[src].loaded) {
+                        ctx.drawImage(imageCache[src].image, boundingBox.x.value * scale, boundingBox.y.value * scale, boundingBox.width.value * scale, boundingBox.height.value * scale);
+                    }
+                    break;
+                }
+                case (CLAY_RENDER_COMMAND_TYPE_CUSTOM): break;
+            }
+        }
+    }
+
+    function renderLoop(currentTime) {
+        const elapsed = currentTime - previousFrameTime;
+        previousFrameTime = currentTime;
+        let activeRendererIndex = memoryDataView.getUint32(instance.exports.ACTIVE_RENDERER_INDEX.value, true);
+        if (activeRendererIndex === 0) {
+            instance.exports.UpdateDrawFrame(scratchSpaceAddress, window.innerWidth, window.innerHeight, 0, 0, window.mousePositionXThisFrame, window.mousePositionYThisFrame, window.touchDown, window.mouseDown, 0, 0, window.dKeyPressedThisFrame, elapsed / 1000);
+        } else {
+            instance.exports.UpdateDrawFrame(scratchSpaceAddress, window.innerWidth, window.innerHeight, window.mouseWheelXThisFrame, window.mouseWheelYThisFrame, window.mousePositionXThisFrame, window.mousePositionYThisFrame, window.touchDown, window.mouseDown, window.arrowKeyDownPressedThisFrame, window.arrowKeyUpPressedThisFrame, window.dKeyPressedThisFrame, elapsed / 1000);
+        }
+        let rendererChanged = activeRendererIndex !== window.previousActiveRendererIndex;
+        switch (activeRendererIndex) {
+            case 0: {
+                renderLoopHTML();
+                if (rendererChanged) {
+                    window.htmlRoot.style.display = 'block';
+                    window.canvasRoot.style.display = 'none';
+                }
+                break;
+            }
+            case 1: {
+                renderLoopCanvas();
+                if (rendererChanged) {
+                    window.htmlRoot.style.display = 'none';
+                    window.canvasRoot.style.display = 'block';
+                }
+                break;
+            }
+        }
+        window.previousActiveRendererIndex = activeRendererIndex;
+        requestAnimationFrame(renderLoop);
+        window.mouseDownThisFrame = false;
+        window.arrowKeyUpPressedThisFrame = false;
+        window.arrowKeyDownPressedThisFrame = false;
+        window.dKeyPressedThisFrame = false;
+    }
+    init();
+</script>
+<body>
+</body>
+</html>

examples/clay-official-website/main.c

@@ -165,7 +165,7 @@ Clay_Color ColorLerp(Clay_Color a, Clay_Color b, float amount) {
 Clay_String LOREM_IPSUM_TEXT = CLAY_STRING("Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua.");
 
 void HighPerformancePageDesktop(float lerpValue) {
-    CLAY(CLAY_ID("PerformanceDesktop"), CLAY_LAYOUT({ .sizing = { CLAY_SIZING_GROW(), CLAY_SIZING_FIT({ .min = windowHeight - 50 }) }, .childAlignment = {0, CLAY_ALIGN_Y_CENTER}, .padding = {.x = 82, 32}, .childGap = 64 }), CLAY_RECTANGLE({ .color = COLOR_RED })) {
+    CLAY(CLAY_ID("PerformancePageOuter"), CLAY_LAYOUT({ .sizing = { CLAY_SIZING_GROW(), CLAY_SIZING_FIT({ .min = windowHeight - 50 }) }, .childAlignment = {0, CLAY_ALIGN_Y_CENTER}, .padding = {.x = 82, 32}, .childGap = 64 }), CLAY_RECTANGLE({ .color = COLOR_RED })) {
         CLAY(CLAY_ID("PerformanceLeftText"), CLAY_LAYOUT({ .sizing = { CLAY_SIZING_PERCENT(0.5) }, .layoutDirection = CLAY_TOP_TO_BOTTOM, .childGap = 8 })) {
             CLAY_TEXT(CLAY_STRING("High Performance"), CLAY_TEXT_CONFIG({ .fontSize = 52, .fontId = FONT_ID_TITLE_56, .textColor = COLOR_LIGHT }));
             CLAY(CLAY_ID("PerformanceSpacer"), CLAY_LAYOUT({ .sizing = { CLAY_SIZING_GROW({ .max = 16 }) }})) {}
@@ -187,7 +187,7 @@ void HighPerformancePageDesktop(float lerpValue) {
 }
 
 void HighPerformancePageMobile(float lerpValue) {
-    CLAY(CLAY_ID("PerformanceMobile"), CLAY_LAYOUT({ .layoutDirection = CLAY_TOP_TO_BOTTOM, .sizing = { CLAY_SIZING_GROW(), CLAY_SIZING_FIT({ .min = windowHeight - 50 }) }, .childAlignment = {CLAY_ALIGN_X_CENTER, CLAY_ALIGN_Y_CENTER}, .padding = {.x = 16, 32}, .childGap = 32 }), CLAY_RECTANGLE({ .color = COLOR_RED })) {
+    CLAY(CLAY_ID("PerformancePageOuter"), CLAY_LAYOUT({ .layoutDirection = CLAY_TOP_TO_BOTTOM, .sizing = { CLAY_SIZING_GROW(), CLAY_SIZING_FIT({ .min = windowHeight - 50 }) }, .childAlignment = {CLAY_ALIGN_X_CENTER, CLAY_ALIGN_Y_CENTER}, .padding = {.x = 16, 32}, .childGap = 32 }), CLAY_RECTANGLE({ .color = COLOR_RED })) {
         CLAY(CLAY_ID("PerformanceLeftText"), CLAY_LAYOUT({ .sizing = { CLAY_SIZING_GROW() }, .layoutDirection = CLAY_TOP_TO_BOTTOM, .childGap = 8 })) {
             CLAY_TEXT(CLAY_STRING("High Performance"), CLAY_TEXT_CONFIG({ .fontSize = 48, .fontId = FONT_ID_TITLE_56, .textColor = COLOR_LIGHT }));
             CLAY(CLAY_ID("PerformanceSpacer"), CLAY_LAYOUT({ .sizing = { CLAY_SIZING_GROW({ .max = 16 }) }})) {}
@@ -390,7 +390,11 @@ CLAY_WASM_EXPORT("UpdateDrawFrame") Clay_RenderCommandArray UpdateDrawFrame(floa
     windowWidth = width;
     windowHeight = height;
     Clay_SetLayoutDimensions((Clay_Dimensions) { width, height });
-    if (deltaTime == deltaTime) { // NaN propagation can cause pain here
+    Clay_ScrollContainerData scrollContainerData = Clay_GetScrollContainerData(Clay_GetElementId(CLAY_STRING("OuterScrollContainer")));
+    Clay_LayoutElementHashMapItem *perfPage = Clay__GetHashMapItem(Clay_GetElementId(CLAY_STRING("PerformancePageOuter")).id);
+    // NaN propagation can cause pain here
+    float perfPageYOffset = perfPage->boundingBox.y + scrollContainerData.scrollPosition->y;
+    if (deltaTime == deltaTime && perfPageYOffset < height && perfPageYOffset + perfPage->boundingBox.height > 0) {
         animationLerpValue += deltaTime;
         if (animationLerpValue > 1) {
             animationLerpValue -= 2;
@@ -413,12 +417,10 @@ CLAY_WASM_EXPORT("UpdateDrawFrame") Clay_RenderCommandArray UpdateDrawFrame(floa
     }
 
     if (isMouseDown && !scrollbarData.mouseDown && Clay_PointerOver(Clay_GetElementId(CLAY_STRING("ScrollBar")))) {
-        Clay_ScrollContainerData scrollContainerData = Clay_GetScrollContainerData(Clay_GetElementId(CLAY_STRING("OuterScrollContainer")));
         scrollbarData.clickOrigin = (Clay_Vector2) { mousePositionX, mousePositionY };
         scrollbarData.positionOrigin = *scrollContainerData.scrollPosition;
         scrollbarData.mouseDown = true;
     } else if (scrollbarData.mouseDown) {
-        Clay_ScrollContainerData scrollContainerData = Clay_GetScrollContainerData(Clay_GetElementId(CLAY_STRING("OuterScrollContainer")));
         if (scrollContainerData.contentDimensions.height > 0) {
             Clay_Vector2 ratio = (Clay_Vector2) {
                 scrollContainerData.contentDimensions.width / scrollContainerData.scrollContainerDimensions.width,
@@ -434,12 +436,10 @@ CLAY_WASM_EXPORT("UpdateDrawFrame") Clay_RenderCommandArray UpdateDrawFrame(floa
     }
 
     if (arrowKeyDownPressedThisFrame) {
-        Clay_ScrollContainerData scrollContainerData = Clay_GetScrollContainerData(Clay_GetElementId(CLAY_STRING("OuterScrollContainer")));
         if (scrollContainerData.contentDimensions.height > 0) {
             scrollContainerData.scrollPosition->y = scrollContainerData.scrollPosition->y - 50;
         }
     } else if (arrowKeyUpPressedThisFrame) {
-        Clay_ScrollContainerData scrollContainerData = Clay_GetScrollContainerData(Clay_GetElementId(CLAY_STRING("OuterScrollContainer")));
         if (scrollContainerData.contentDimensions.height > 0) {
             scrollContainerData.scrollPosition->y = scrollContainerData.scrollPosition->y + 50;
         }

examples/cpp-project-example/CMakeLists.txt

@@ -8,5 +8,5 @@ add_executable(clay_examples_cpp_project_example main.cpp)
 
 target_include_directories(clay_examples_cpp_project_example PUBLIC .)
 
-set(CMAKE_CXX_FLAGS_DEBUG "-Werror -Wall -Wno-error=missing-braces")
+set(CMAKE_CXX_FLAGS_DEBUG "-Werror -Wall")
 set(CMAKE_CXX_FLAGS_RELEASE "-O3")

examples/minimal-imgui/CMakeLists.txt

@@ -0,0 +1,46 @@
+cmake_minimum_required(VERSION 3.27)
+project(minimal_imgui)
+set(CMAKE_C_STANDARD 99)
+
+set(CMAKE_EXPORT_COMPILE_COMMANDS TRUE)
+
+#add_subdirectory(3rd_party)
+
+include(FetchContent)
+
+FetchContent_Declare(
+  sokol
+  GIT_REPOSITORY "https://github.com/floooh/sokol.git"
+  GIT_COMMIT  "789d97071d17cbab4e3835a0b0b8b379e98c114f"
+  GIT_PROGRESS TRUE
+  GIT_SHALLOW TRUE
+)
+
+FetchContent_Declare(
+  imgui
+  GIT_REPOSITORY "https://github.com/ocornut/imgui.git"
+  GIT_TAG "v1.91.6"
+  GIT_PROGRESS TRUE
+  GIT_SHALLOW TRUE
+)
+
+FetchContent_MakeAvailable(sokol imgui)
+
+add_executable(minimal_imgui
+  main.cpp
+  ${imgui_SOURCE_DIR}/imgui.cpp
+  ${imgui_SOURCE_DIR}/imgui_demo.cpp
+  ${imgui_SOURCE_DIR}/imgui_draw.cpp
+  ${imgui_SOURCE_DIR}/imgui_tables.cpp
+  ${imgui_SOURCE_DIR}/imgui_widgets.cpp
+)
+
+target_compile_options(minimal_imgui PUBLIC)
+target_include_directories(minimal_imgui PUBLIC .)
+
+#set(CMAKE_CXX_FLAGS_DEBUG "-DCLAY_DEBUG")
+set(CMAKE_CXX_FLAGS_RELEASE "-O3")
+target_include_directories(minimal_imgui PUBLIC ${sokol_SOURCE_DIR} ${imgui_SOURCE_DIR})
+if(WIN32)
+  target_link_libraries(minimal_imgui PUBLIC kernel32 user32 shell32 gdi32)
+endif()

examples/minimal-imgui/main.cpp

@@ -0,0 +1,196 @@
+#define CLAY_IMPLEMENTATION
+#include "../../clay.h"
+
+#define SOKOL_IMPL
+#define SOKOL_NO_ENTRY
+#define SOKOL_GLCORE
+#include "sokol_app.h"
+#include "sokol_gfx.h"
+#include "sokol_glue.h"
+#include "sokol_log.h"
+
+#define IMGUI_DEFINE_MATH_OPERATORS
+#include "imgui.h"
+#define SOKOL_IMGUI_IMPL
+#include "util/sokol_imgui.h"
+
+#include <stdio.h>
+
+#define SCREEN_WIDTH  800
+#define SCREEN_HEIGHT 600
+
+sg_pass_action pass_action = {};
+
+static const uint32_t FONT_ID_BODY_24 = 0;
+static const Clay_Color COLOR_ORANGE = (Clay_Color) {225, 138, 50, 255};
+static const Clay_Color COLOR_BLUE = (Clay_Color) {111, 173, 162, 255};
+static const Clay_Color COLOR_LIGHT = (Clay_Color) {224, 215, 210, 255};
+
+void init();
+void frame();
+void cleanup();
+void input(const sapp_event* event);
+
+static void Label(Clay_String text) {
+    CLAY(CLAY_LAYOUT({ .padding = {16, 8} }),
+        CLAY_RECTANGLE({ .color = Clay_Hovered() ? COLOR_BLUE : COLOR_ORANGE })
+    ) {
+        CLAY_TEXT(text, CLAY_TEXT_CONFIG({
+            .textColor = { 255, 255, 255, 255 },
+            .fontId = FONT_ID_BODY_24,
+            .fontSize = 24,
+        }));
+    }
+}
+
+static Clay_RenderCommandArray CreateLayout() {
+    Clay_BeginLayout();
+    CLAY(CLAY_ID("MainContent"),
+        CLAY_LAYOUT({
+            .sizing = {
+                .width = CLAY_SIZING_GROW(),
+                .height = CLAY_SIZING_GROW(),
+            },
+            .childAlignment = {
+                .x = CLAY_ALIGN_X_CENTER,
+                .y = CLAY_ALIGN_Y_CENTER,
+            }
+        }),
+        CLAY_RECTANGLE({
+            .color = COLOR_LIGHT,
+        })
+    ) {
+        Label(CLAY_STRING("Hello, World!"));
+    }
+    return Clay_EndLayout();
+}
+
+Clay_Dimensions measureText(Clay_String *text, Clay_TextElementConfig *config);
+void render(Clay_RenderCommandArray renderCommands);
+
+int main(int argc, char** args) {
+    //-----------------------------------------------------------------------
+    // Setup Clay
+    //-----------------------------------------------------------------------
+    uint64_t totalMemorySize = Clay_MinMemorySize();
+    Clay_Arena clayMemory = (Clay_Arena) {
+        .label = CLAY_STRING("Clay Memory Arena"),
+        .capacity = totalMemorySize,
+        .memory = (char*)malloc(totalMemorySize),
+    };
+
+    Clay_SetMeasureTextFunction(measureText);
+
+    Clay_Initialize(clayMemory, (Clay_Dimensions) { SCREEN_WIDTH, SCREEN_HEIGHT });
+
+    //-----------------------------------------------------------------------
+    // Setup Sokol
+    //-----------------------------------------------------------------------
+    sapp_desc desc = {0};
+    desc.init_cb = init;
+    desc.frame_cb = frame;
+    desc.cleanup_cb = cleanup,
+    desc.event_cb = input,
+    desc.width  = SCREEN_WIDTH,
+    desc.height = SCREEN_HEIGHT,
+    desc.window_title = "sokol + puredoom",
+    desc.icon.sokol_default = true,
+    desc.logger.func = slog_func;
+    sapp_run(&desc);
+
+    return 0;
+}
+
+void init() {
+    sg_desc desc = {0};
+    desc.environment = sglue_environment();
+    desc.logger.func = slog_func;
+    sg_setup(&desc);
+
+    pass_action.colors[0] = (sg_color_attachment_action){ .load_action=SG_LOADACTION_CLEAR, .clear_value={0.2f, 0.1f, 0.3f, 1.0f} };
+
+    simgui_desc_t simgui_desc = {0};
+    simgui_setup(&simgui_desc);
+}
+
+void frame() {
+    // const double dt = sapp_frame_duration();
+
+    const int width = sapp_width();
+    const int height = sapp_height();
+    simgui_new_frame({ width, height, sapp_frame_duration(), sapp_dpi_scale() });
+
+    // imgui
+    {
+        // ImGui::ShowDemoWindow();
+        ImGui::SetNextWindowSize(ImVec2{SCREEN_WIDTH, SCREEN_HEIGHT});
+        ImGui::SetNextWindowPos(ImVec2{0, 0});
+        ImGui::Begin("Text rendering", NULL, ImGuiWindowFlags_NoBackground|ImGuiWindowFlags_NoTitleBar|ImGuiWindowFlags_NoResize|ImGuiWindowFlags_NoMove|ImGuiWindowFlags_NoScrollbar|ImGuiWindowFlags_NoSavedSettings);
+
+        Clay_RenderCommandArray renderCommands = CreateLayout();
+        render(renderCommands);
+
+        ImGui::End();
+    }
+
+    sg_begin_pass({ .action = pass_action, .swapchain = sglue_swapchain() });
+    simgui_render();
+    sg_end_pass();
+    sg_commit();
+}
+
+void cleanup() {
+    simgui_shutdown();
+    sg_shutdown();
+}
+
+void input(const sapp_event* event) {
+    simgui_handle_event(event);
+}
+
+Clay_Dimensions measureText(Clay_String *text, Clay_TextElementConfig *config)
+{
+    ImVec2 size = ImGui::CalcTextSize(text->chars, nullptr);
+    return (Clay_Dimensions) {
+        .width = size.x,
+        .height = size.y,
+    };
+}
+
+
+void render(Clay_RenderCommandArray renderCommands)
+{
+    ImDrawList* draw_list = ImGui::GetWindowDrawList();
+    ImVec2 p = ImGui::GetCursorScreenPos();
+
+    for (uint32_t i = 0; i < renderCommands.length; i++)
+    {
+        Clay_RenderCommand *renderCommand = Clay_RenderCommandArray_Get(&renderCommands, i);
+        Clay_BoundingBox boundingBox = renderCommand->boundingBox;
+        switch (renderCommand->commandType)
+        {
+            case CLAY_RENDER_COMMAND_TYPE_RECTANGLE: {
+                Clay_RectangleElementConfig *config = renderCommand->config.rectangleElementConfig;
+                Clay_Color color = config->color;
+
+                draw_list->AddRectFilled(p+ImVec2(boundingBox.x, boundingBox.y), p+ImVec2(boundingBox.x+boundingBox.width, boundingBox.y+boundingBox.height), ImColor(color.r/255.0f, color.g/255.0f, color.b/255.0f, color.a/255.0f));
+
+                break;
+            }
+            case CLAY_RENDER_COMMAND_TYPE_TEXT: {
+                Clay_TextElementConfig *config = renderCommand->config.textElementConfig;
+
+                draw_list->AddText(p+ImVec2(boundingBox.x, boundingBox.y), ImColor(config->textColor.r/255.0f, config->textColor.g/255.0f, config->textColor.b/255.0f, config->textColor.a/255.0f), renderCommand->text.chars);
+
+                break;
+            }
+            default: {
+                fprintf(stderr, "Error: unhandled render command: %d\n", renderCommand->commandType);
+                #ifdef CLAY_OVERFLOW_TRAP
+                raise(SIGTRAP);
+                #endif
+                exit(1);
+            }
+        }
+    }
+}