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[Core] Convert measureText pointer to value string slice (#214)

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Nic Barker 2025-01-20 11:27:22 +13:00 committed by GitHub
parent e8025cc254
commit 326325ffaf
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GPG Key ID: B5690EEEBB952194
6 changed files with 24 additions and 21 deletions
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23
clay.h
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@ -191,6 +191,13 @@ CLAY__TYPEDEF(Clay__StringArray, struct {
Clay_String *internalArray; Clay_String *internalArray;
}); });
CLAY__TYPEDEF(Clay_StringSlice, struct {
int32_t length;
const char *chars;
// The source string / char* that this slice was derived from
const char *baseChars;
});
typedef struct Clay_Context Clay_Context; typedef struct Clay_Context Clay_Context;
CLAY__TYPEDEF(Clay_Arena, struct { CLAY__TYPEDEF(Clay_Arena, struct {
@ -527,7 +534,7 @@ bool Clay_Hovered(void);
void Clay_OnHover(void (*onHoverFunction)(Clay_ElementId elementId, Clay_PointerData pointerData, intptr_t userData), intptr_t userData); void Clay_OnHover(void (*onHoverFunction)(Clay_ElementId elementId, Clay_PointerData pointerData, intptr_t userData), intptr_t userData);
bool Clay_PointerOver(Clay_ElementId elementId); bool Clay_PointerOver(Clay_ElementId elementId);
Clay_ScrollContainerData Clay_GetScrollContainerData(Clay_ElementId id); Clay_ScrollContainerData Clay_GetScrollContainerData(Clay_ElementId id);
void Clay_SetMeasureTextFunction(Clay_Dimensions (*measureTextFunction)(Clay_String *text, Clay_TextElementConfig *config, uintptr_t userData), uintptr_t userData); void Clay_SetMeasureTextFunction(Clay_Dimensions (*measureTextFunction)(Clay_StringSlice text, Clay_TextElementConfig *config, uintptr_t userData), uintptr_t userData);
void Clay_SetQueryScrollOffsetFunction(Clay_Vector2 (*queryScrollOffsetFunction)(uint32_t elementId, uintptr_t userData), uintptr_t userData); void Clay_SetQueryScrollOffsetFunction(Clay_Vector2 (*queryScrollOffsetFunction)(uint32_t elementId, uintptr_t userData), uintptr_t userData);
Clay_RenderCommand * Clay_RenderCommandArray_Get(Clay_RenderCommandArray* array, int32_t index); Clay_RenderCommand * Clay_RenderCommandArray_Get(Clay_RenderCommandArray* array, int32_t index);
void Clay_SetDebugModeEnabled(bool enabled); void Clay_SetDebugModeEnabled(bool enabled);
@ -1482,10 +1489,10 @@ Clay_String Clay__WriteStringToCharBuffer(Clay__CharArray *buffer, Clay_String s
} }
#ifdef CLAY_WASM #ifdef CLAY_WASM
__attribute__((import_module("clay"), import_name("measureTextFunction"))) Clay_Dimensions Clay__MeasureText(Clay_String *text, Clay_TextElementConfig *config, uintptr_t userData); __attribute__((import_module("clay"), import_name("measureTextFunction"))) Clay_Dimensions Clay__MeasureText(Clay_StringSlice text, Clay_TextElementConfig *config, uintptr_t userData);
__attribute__((import_module("clay"), import_name("queryScrollOffsetFunction"))) Clay_Vector2 Clay__QueryScrollOffset(uint32_t elementId, uintptr_t userData); __attribute__((import_module("clay"), import_name("queryScrollOffsetFunction"))) Clay_Vector2 Clay__QueryScrollOffset(uint32_t elementId, uintptr_t userData);
#else #else
Clay_Dimensions (*Clay__MeasureText)(Clay_String *text, Clay_TextElementConfig *config, uintptr_t userData); Clay_Dimensions (*Clay__MeasureText)(Clay_StringSlice text, Clay_TextElementConfig *config, uintptr_t userData);
Clay_Vector2 (*Clay__QueryScrollOffset)(uint32_t elementId, uintptr_t userData); Clay_Vector2 (*Clay__QueryScrollOffset)(uint32_t elementId, uintptr_t userData);
#endif #endif
@ -1701,7 +1708,7 @@ Clay__MeasureTextCacheItem *Clay__MeasureTextCached(Clay_String *text, Clay_Text
float lineWidth = 0; float lineWidth = 0;
float measuredWidth = 0; float measuredWidth = 0;
float measuredHeight = 0; float measuredHeight = 0;
float spaceWidth = Clay__MeasureText(&CLAY__SPACECHAR, config, context->mesureTextUserData).width; float spaceWidth = Clay__MeasureText(CLAY__INIT(Clay_StringSlice) { .length = 1, .chars = CLAY__SPACECHAR.chars, .baseChars = CLAY__SPACECHAR.chars }, config, context->mesureTextUserData).width;
Clay__MeasuredWord tempWord = { .next = -1 }; Clay__MeasuredWord tempWord = { .next = -1 };
Clay__MeasuredWord *previousWord = &tempWord; Clay__MeasuredWord *previousWord = &tempWord;
while (end < text->length) { while (end < text->length) {
@ -1718,8 +1725,7 @@ Clay__MeasureTextCacheItem *Clay__MeasureTextCached(Clay_String *text, Clay_Text
char current = text->chars[end]; char current = text->chars[end];
if (current == ' ' || current == '\n') { if (current == ' ' || current == '\n') {
int32_t length = end - start; int32_t length = end - start;
Clay_String word = { .length = length, .chars = &text->chars[start] }; Clay_Dimensions dimensions = Clay__MeasureText(CLAY__INIT(Clay_StringSlice) { .length = length, .chars = &text->chars[start], .baseChars = text->chars }, config, context->mesureTextUserData);
Clay_Dimensions dimensions = Clay__MeasureText(&word, config, context->mesureTextUserData);
measuredHeight = CLAY__MAX(measuredHeight, dimensions.height); measuredHeight = CLAY__MAX(measuredHeight, dimensions.height);
if (current == ' ') { if (current == ' ') {
dimensions.width += spaceWidth; dimensions.width += spaceWidth;
@ -1741,8 +1747,7 @@ Clay__MeasureTextCacheItem *Clay__MeasureTextCached(Clay_String *text, Clay_Text
end++; end++;
} }
if (end - start > 0) { if (end - start > 0) {
Clay_String lastWord = { .length = end - start, .chars = &text->chars[start] }; Clay_Dimensions dimensions = Clay__MeasureText(CLAY__INIT(Clay_StringSlice) { .length = end - start, .chars = &text->chars[start], .baseChars = text->chars }, config, context->mesureTextUserData);
Clay_Dimensions dimensions = Clay__MeasureText(&lastWord, config, context->mesureTextUserData);
Clay__AddMeasuredWord(CLAY__INIT(Clay__MeasuredWord) { .startOffset = start, .length = end - start, .width = dimensions.width, .next = -1 }, previousWord); Clay__AddMeasuredWord(CLAY__INIT(Clay__MeasuredWord) { .startOffset = start, .length = end - start, .width = dimensions.width, .next = -1 }, previousWord);
lineWidth += dimensions.width; lineWidth += dimensions.width;
measuredHeight = CLAY__MAX(measuredHeight, dimensions.height); measuredHeight = CLAY__MAX(measuredHeight, dimensions.height);
@ -3680,7 +3685,7 @@ Clay_Arena Clay_CreateArenaWithCapacityAndMemory(uint32_t capacity, void *offset
} }
#ifndef CLAY_WASM #ifndef CLAY_WASM
void Clay_SetMeasureTextFunction(Clay_Dimensions (*measureTextFunction)(Clay_String *text, Clay_TextElementConfig *config, uintptr_t userData), uintptr_t userData) { void Clay_SetMeasureTextFunction(Clay_Dimensions (*measureTextFunction)(Clay_StringSlice text, Clay_TextElementConfig *config, uintptr_t userData), uintptr_t userData) {
Clay_Context* context = Clay_GetCurrentContext(); Clay_Context* context = Clay_GetCurrentContext();
Clay__MeasureText = measureTextFunction; Clay__MeasureText = measureTextFunction;
context->mesureTextUserData = userData; context->mesureTextUserData = userData;

2
examples/SDL3-simple-demo/CMakeLists.txt
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@ -4,7 +4,7 @@ cmake_minimum_required(VERSION 3.27)
project(clay_examples_sdl3_simple_demo C) project(clay_examples_sdl3_simple_demo C)
set(CMAKE_C_STANDARD 99) set(CMAKE_C_STANDARD 99)
set(CMAKE_C_FLAGS_DEBUG "${CMAKE_C_FLAGS_DEBUG} -g -Wall -Werror") set(CMAKE_C_FLAGS_DEBUG "${CMAKE_C_FLAGS_DEBUG} -g")
set(CMAKE_C_FLAGS_RELEASE "${CMAKE_C_FLAGS_RELEASE} -O3") set(CMAKE_C_FLAGS_RELEASE "${CMAKE_C_FLAGS_RELEASE} -O3")
include(FetchContent) include(FetchContent)

6
examples/SDL3-simple-demo/main.c
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@ -21,14 +21,12 @@ typedef struct app_state {
SDL_Renderer *renderer; SDL_Renderer *renderer;
} AppState; } AppState;
static inline Clay_Dimensions SDL_MeasureText(Clay_String *text, Clay_TextElementConfig *config, uintptr_t userData) static inline Clay_Dimensions SDL_MeasureText(Clay_StringSlice text, Clay_TextElementConfig *config, uintptr_t userData)
{ {
TTF_Font *font = gFonts[config->fontId]; TTF_Font *font = gFonts[config->fontId];
int width, height; int width, height;
if (!TTF_GetStringSize(font, text->chars, text->length, &width, &height)) { if (!TTF_GetStringSize(font, text.chars, text.length, &width, &height)) {
SDL_LogError(SDL_LOG_CATEGORY_ERROR, "Failed to measure text: %s", SDL_GetError()); SDL_LogError(SDL_LOG_CATEGORY_ERROR, "Failed to measure text: %s", SDL_GetError());
} }

BIN
examples/clay-official-website/build/clay/index.wasm
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6
renderers/SDL2/clay_renderer_SDL2.c
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@ -13,13 +13,13 @@ typedef struct
} SDL2_Font; } SDL2_Font;
static Clay_Dimensions SDL2_MeasureText(Clay_String *text, Clay_TextElementConfig *config, uintptr_t userData) static Clay_Dimensions SDL2_MeasureText(Clay_StringSlice text, Clay_TextElementConfig *config, uintptr_t userData)
{ {
SDL2_Font *fonts = (SDL2_Font*)userData; SDL2_Font *fonts = (SDL2_Font*)userData;
TTF_Font *font = fonts[config->fontId].font; TTF_Font *font = fonts[config->fontId].font;
char *chars = (char *)calloc(text->length + 1, 1); char *chars = (char *)calloc(text.length + 1, 1);
memcpy(chars, text->chars, text->length); memcpy(chars, text.chars, text.length);
int width = 0; int width = 0;
int height = 0; int height = 0;
if (TTF_SizeUTF8(font, chars, &width, &height) < 0) { if (TTF_SizeUTF8(font, chars, &width, &height) < 0) {

8
renderers/raylib/clay_renderer_raylib.c
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@ -89,7 +89,7 @@ Ray GetScreenToWorldPointWithZDistance(Vector2 position, Camera camera, int scre
uint32_t measureCalls = 0; uint32_t measureCalls = 0;
static inline Clay_Dimensions Raylib_MeasureText(Clay_String *text, Clay_TextElementConfig *config, uintptr_t userData) { static inline Clay_Dimensions Raylib_MeasureText(Clay_StringSlice text, Clay_TextElementConfig *config, uintptr_t userData) {
measureCalls++; measureCalls++;
// Measure string size for Font // Measure string size for Font
Clay_Dimensions textSize = { 0 }; Clay_Dimensions textSize = { 0 };
@ -101,14 +101,14 @@ static inline Clay_Dimensions Raylib_MeasureText(Clay_String *text, Clay_TextEle
Font fontToUse = Raylib_fonts[config->fontId].font; Font fontToUse = Raylib_fonts[config->fontId].font;
float scaleFactor = config->fontSize/(float)fontToUse.baseSize; float scaleFactor = config->fontSize/(float)fontToUse.baseSize;
for (int i = 0; i < text->length; ++i) for (int i = 0; i < text.length; ++i)
{ {
if (text->chars[i] == '\n') { if (text.chars[i] == '\n') {
maxTextWidth = fmax(maxTextWidth, lineTextWidth); maxTextWidth = fmax(maxTextWidth, lineTextWidth);
lineTextWidth = 0; lineTextWidth = 0;
continue; continue;
} }
int index = text->chars[i] - 32; int index = text.chars[i] - 32;
if (fontToUse.glyphs[index].advanceX != 0) lineTextWidth += fontToUse.glyphs[index].advanceX; if (fontToUse.glyphs[index].advanceX != 0) lineTextWidth += fontToUse.glyphs[index].advanceX;
else lineTextWidth += (fontToUse.recs[index].width + fontToUse.glyphs[index].offsetX); else lineTextWidth += (fontToUse.recs[index].width + fontToUse.glyphs[index].offsetX);
} }