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https://github.com/nicbarker/clay.git
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116 lines
3.5 KiB
C
116 lines
3.5 KiB
C
#include "pd_api.h"
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#define CLAY_IMPLEMENTATION
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#include "../../clay.h"
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#include "../../renderers/playdate/clay_renderer_playdate.c"
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#include "clay-video-demo-playdate.c"
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static int update(void *userdata);
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#define NUM_FONTS 2
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const char *fontsToLoad[NUM_FONTS] = {
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"/System/Fonts/Asheville-Sans-14-Bold.pft",
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"/System/Fonts/Roobert-10-Bold.pft"
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};
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void HandleClayErrors(Clay_ErrorData errorData) {}
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struct TextUserData {
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LCDFont *font[NUM_FONTS];
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PlaydateAPI *pd;
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};
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static struct TextUserData textUserData = { .font = { NULL }, .pd = NULL };
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static Clay_Dimensions PlayDate_MeasureText(Clay_StringSlice text, Clay_TextElementConfig *config, void *userData) {
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struct TextUserData *textUserData = userData;
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int width = textUserData->pd->graphics->getTextWidth(
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textUserData->font[config->fontId],
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text.chars,
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Clay_Playdate_CountUtf8Codepoints(text.chars, text.length),
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kUTF8Encoding,
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0
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);
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int height = textUserData->pd->graphics->getFontHeight(textUserData->font[config->fontId]);
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return (Clay_Dimensions){
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.width = (float)width,
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.height = (float)height,
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};
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}
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#ifdef _WINDLL
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__declspec(dllexport)
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#endif
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int eventHandler(PlaydateAPI* pd, PDSystemEvent event, uint32_t eventArg) {
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if (event == kEventInit) {
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const char *err;
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for (int i = 0; i < NUM_FONTS; ++i) {
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textUserData.font[i] = pd->graphics->loadFont(fontsToLoad[i], &err);
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if (textUserData.font[i] == NULL) {
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pd->system->error("%s:%i Couldn't load font %s: %s", __FILE__, __LINE__, fontsToLoad[i], err);
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}
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}
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textUserData.pd = pd;
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pd->system->setUpdateCallback(update, pd);
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uint64_t totalMemorySize = Clay_MinMemorySize();
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Clay_Arena clayMemory = Clay_CreateArenaWithCapacityAndMemory(
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totalMemorySize,
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pd->system->realloc(NULL, totalMemorySize)
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);
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Clay_Initialize(
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clayMemory,
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(Clay_Dimensions){
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(float)pd->display->getWidth(),
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(float)pd->display->getHeight()
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},
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(Clay_ErrorHandler){HandleClayErrors}
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);
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Clay_SetMeasureTextFunction(PlayDate_MeasureText, &textUserData);
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ClayVideoDemoPlaydate_Initialize(pd);
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}
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return 0;
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}
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int selectedDocumentIndex = 0;
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#define WRAP_RANGE(x, N) ((((x) % (N)) + (N)) % (N))
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static int update(void *userdata) {
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PlaydateAPI *pd = userdata;
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PDButtons pushedButtons;
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pd->system->getButtonState(NULL, &pushedButtons, NULL);
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if (pushedButtons & kButtonDown) {
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selectedDocumentIndex = WRAP_RANGE(selectedDocumentIndex + 1, MAX_DOCUMENTS);
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} else if (pushedButtons & kButtonUp) {
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selectedDocumentIndex = WRAP_RANGE(selectedDocumentIndex - 1, MAX_DOCUMENTS);
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}
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pd->graphics->clear(kColorWhite);
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// A bit hacky, setting the cursor on to the document view so it can be
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// scrolled..
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Clay_SetPointerState(
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(Clay_Vector2){
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.x = pd->display->getWidth() / 2.0f,
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.y = pd->display->getHeight() / 2.0f
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},
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false
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);
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float crankDelta = pd->system->getCrankChange();
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Clay_UpdateScrollContainers(
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false,
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(Clay_Vector2){ 0, -crankDelta * 0.25f },
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pd->system->getElapsedTime()
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);
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Clay_RenderCommandArray renderCommands = ClayVideoDemoPlaydate_CreateLayout(selectedDocumentIndex);
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Clay_Playdate_Render(pd, renderCommands, textUserData.font);
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return 1;
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}
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