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[Core] Add Clay_GetPointerOverIds function to the public API.

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This adds a new `Clay_GetPointerOverIds` function to the public API
that returns the array of element IDs that the pointer is currently
over.

This also required to add a new public `Clay_ElementIdArray`, and to
modify the naming of some internal array definitions to match.
This commit is contained in:
tritao 2025-04-24 15:13:15 +01:00
parent b33ba4ff62
commit 84ef28c89c
1 changed files with 25 additions and 10 deletions
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35
clay.h
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@ -238,6 +238,14 @@ typedef struct {
Clay_String stringId; // The string id to hash.
} Clay_ElementId;
// A sized array of Clay_ElementId.
typedef struct
{
int32_t capacity;
int32_t length;
Clay_ElementId *internalArray;
} Clay_ElementIdArray;
// Controls the "radius", or corner rounding of elements, including rectangles, borders and images.
// The rounding is determined by drawing a circle inset into the element corner by (radius, radius) pixels.
typedef struct {
@ -844,6 +852,8 @@ CLAY_DLL_EXPORT void Clay_OnHover(void (*onHoverFunction)(Clay_ElementId element
// An imperative function that returns true if the pointer position provided by Clay_SetPointerState is within the element with the provided ID's bounding box.
// This ID can be calculated either with CLAY_ID() for string literal IDs, or Clay_GetElementId for dynamic strings.
CLAY_DLL_EXPORT bool Clay_PointerOver(Clay_ElementId elementId);
// Returns the array of element IDs that the pointer is currently over.
CLAY_DLL_EXPORT Clay_ElementIdArray Clay_GetPointerOverIds(void);
// Returns data representing the state of the scrolling element with the provided ID.
// The returned Clay_ScrollContainerData contains a `found` bool that will be true if a scroll element was found with the provided ID.
// An imperative function that returns true if the pointer position provided by Clay_SetPointerState is within the element with the provided ID's bounding box.
@ -1029,7 +1039,7 @@ bool Clay__Array_AddCapacityCheck(int32_t length, int32_t capacity);
CLAY__ARRAY_DEFINE(bool, Clay__boolArray)
CLAY__ARRAY_DEFINE(int32_t, Clay__int32_tArray)
CLAY__ARRAY_DEFINE(char, Clay__charArray)
CLAY__ARRAY_DEFINE(Clay_ElementId, Clay__ElementIdArray)
CLAY__ARRAY_DEFINE_FUNCTIONS(Clay_ElementId, Clay_ElementIdArray)
CLAY__ARRAY_DEFINE(Clay_LayoutConfig, Clay__LayoutConfigArray)
CLAY__ARRAY_DEFINE(Clay_TextElementConfig, Clay__TextElementConfigArray)
CLAY__ARRAY_DEFINE(Clay_ImageElementConfig, Clay__ImageElementConfigArray)
@ -1236,7 +1246,7 @@ struct Clay_Context {
Clay__MeasuredWordArray measuredWords;
Clay__int32_tArray measuredWordsFreeList;
Clay__int32_tArray openClipElementStack;
Clay__ElementIdArray pointerOverIds;
Clay_ElementIdArray pointerOverIds;
Clay__ScrollContainerDataInternalArray scrollContainerDatas;
Clay__boolArray treeNodeVisited;
Clay__charArray dynamicStringData;
@ -2154,7 +2164,7 @@ void Clay__InitializePersistentMemory(Clay_Context* context) {
context->measuredWordsFreeList = Clay__int32_tArray_Allocate_Arena(maxMeasureTextCacheWordCount, arena);
context->measureTextHashMap = Clay__int32_tArray_Allocate_Arena(maxElementCount, arena);
context->measuredWords = Clay__MeasuredWordArray_Allocate_Arena(maxMeasureTextCacheWordCount, arena);
context->pointerOverIds = Clay__ElementIdArray_Allocate_Arena(maxElementCount, arena);
context->pointerOverIds = Clay_ElementIdArray_Allocate_Arena(maxElementCount, arena);
context->debugElementData = Clay__DebugElementDataArray_Allocate_Arena(maxElementCount, arena);
context->arenaResetOffset = arena->nextAllocation;
}
@ -3054,6 +3064,11 @@ void Clay__CalculateFinalLayout(void) {
}
}
CLAY_WASM_EXPORT("Clay_GetPointerOverIds")
CLAY_DLL_EXPORT Clay_ElementIdArray Clay_GetPointerOverIds(void) {
return Clay_GetCurrentContext()->pointerOverIds;
}
#pragma region DebugTools
Clay_Color CLAY__DEBUGVIEW_COLOR_1 = {58, 56, 52, 255};
Clay_Color CLAY__DEBUGVIEW_COLOR_2 = {62, 60, 58, 255};
@ -3233,7 +3248,7 @@ Clay__RenderDebugLayoutData Clay__RenderDebugLayoutElementsList(int32_t initialR
if (context->pointerInfo.state == CLAY_POINTER_DATA_PRESSED_THIS_FRAME) {
Clay_ElementId collapseButtonId = Clay__HashString(CLAY_STRING("Clay__DebugView_CollapseElement"), 0, 0);
for (int32_t i = (int)context->pointerOverIds.length - 1; i >= 0; i--) {
Clay_ElementId *elementId = Clay__ElementIdArray_Get(&context->pointerOverIds, i);
Clay_ElementId *elementId = Clay_ElementIdArray_Get(&context->pointerOverIds, i);
if (elementId->baseId == collapseButtonId.baseId) {
Clay_LayoutElementHashMapItem *highlightedItem = Clay__GetHashMapItem(elementId->offset);
highlightedItem->debugData->collapsed = !highlightedItem->debugData->collapsed;
@ -3331,7 +3346,7 @@ void Clay__RenderDebugView(void) {
Clay_ElementId closeButtonId = Clay__HashString(CLAY_STRING("Clay__DebugViewTopHeaderCloseButtonOuter"), 0, 0);
if (context->pointerInfo.state == CLAY_POINTER_DATA_PRESSED_THIS_FRAME) {
for (int32_t i = 0; i < context->pointerOverIds.length; ++i) {
Clay_ElementId *elementId = Clay__ElementIdArray_Get(&context->pointerOverIds, i);
Clay_ElementId *elementId = Clay_ElementIdArray_Get(&context->pointerOverIds, i);
if (elementId->id == closeButtonId.id) {
context->debugModeEnabled = false;
return;
@ -3819,11 +3834,11 @@ void Clay_SetPointerState(Clay_Vector2 position, bool isPointerDown) {
if (mapItem->onHoverFunction) {
mapItem->onHoverFunction(mapItem->elementId, context->pointerInfo, mapItem->hoverFunctionUserData);
}
Clay__ElementIdArray_Add(&context->pointerOverIds, mapItem->elementId);
Clay_ElementIdArray_Add(&context->pointerOverIds, mapItem->elementId);
found = true;
if (mapItem->idAlias != 0) {
Clay__ElementIdArray_Add(&context->pointerOverIds, CLAY__INIT(Clay_ElementId) { .id = mapItem->idAlias });
Clay_ElementIdArray_Add(&context->pointerOverIds, CLAY__INIT(Clay_ElementId) { .id = mapItem->idAlias });
}
}
if (Clay__ElementHasConfig(currentElement, CLAY__ELEMENT_CONFIG_TYPE_TEXT)) {
@ -3953,7 +3968,7 @@ void Clay_UpdateScrollContainers(bool enableDragScrolling, Clay_Vector2 scrollDe
scrollData->scrollPosition.y = CLAY__MIN(CLAY__MAX(scrollData->scrollPosition.y, -(CLAY__MAX(scrollData->contentSize.height - scrollData->layoutElement->dimensions.height, 0))), 0);
for (int32_t j = 0; j < context->pointerOverIds.length; ++j) { // TODO n & m are small here but this being n*m gives me the creeps
if (scrollData->layoutElement->id == Clay__ElementIdArray_Get(&context->pointerOverIds, j)->id) {
if (scrollData->layoutElement->id == Clay_ElementIdArray_Get(&context->pointerOverIds, j)->id) {
highestPriorityElementIndex = j;
highestPriorityScrollData = scrollData;
}
@ -4082,7 +4097,7 @@ bool Clay_Hovered(void) {
Clay__GenerateIdForAnonymousElement(openLayoutElement);
}
for (int32_t i = 0; i < context->pointerOverIds.length; ++i) {
if (Clay__ElementIdArray_Get(&context->pointerOverIds, i)->id == openLayoutElement->id) {
if (Clay_ElementIdArray_Get(&context->pointerOverIds, i)->id == openLayoutElement->id) {
return true;
}
}
@ -4107,7 +4122,7 @@ CLAY_WASM_EXPORT("Clay_PointerOver")
bool Clay_PointerOver(Clay_ElementId elementId) { // TODO return priority for separating multiple results
Clay_Context* context = Clay_GetCurrentContext();
for (int32_t i = 0; i < context->pointerOverIds.length; ++i) {
if (Clay__ElementIdArray_Get(&context->pointerOverIds, i)->id == elementId.id) {
if (Clay_ElementIdArray_Get(&context->pointerOverIds, i)->id == elementId.id) {
return true;
}
}