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#include <SDL3/SDL.h>
#include <SDL3_ttf/SDL_ttf.h>
#include "panic.h"
#include "font.h"
#include "hash.h"
#include "main.h"
#include "tooltip.h"
#define PADDING 4
void set_tooltip_text(tooltip *t, const char *text) {
if (!t->window) {
t->window = must(SDL_CreatePopupWindow(window,
0, 0, 0, 0, SDL_WINDOW_TOOLTIP | SDL_WINDOW_BORDERLESS
));
t->renderer = must(SDL_CreateRenderer(t->window, NULL));
}
uint64_t hash = fnv(text, text ? strlen(text) : 0);
if (hash == t->hash) {
return;
}
t->hash = hash;
if (t->texture) {
SDL_DestroyTexture(t->texture);
t->texture = NULL;
}
if (!text) return;
SDL_Color color = {0xff, 0xff, 0xff, 0xff};
SDL_Surface *s = must(TTF_RenderText_Blended_Wrapped(
font, text, 0, color, 0
));
t->texture = must(SDL_CreateTextureFromSurface(t->renderer, s));
SDL_DestroySurface(s);
float tw, th;
SDL_GetTextureSize(t->texture, &tw, &th);
SDL_SetWindowSize(t->window, tw + PADDING*2, th + PADDING*2);
SDL_SyncWindow(t->window);
}
void show_tooltip(tooltip *t, int x, int y) {
if (!(SDL_GetWindowFlags(window) & SDL_WINDOW_MOUSE_FOCUS)) {
hide_tooltip(t);
return;
}
if (!t->texture) {
hide_tooltip(t);
return;
}
float tw, th;
SDL_GetTextureSize(t->texture, &tw, &th);
SDL_SetWindowPosition(t->window, x + PADDING, y - th - PADDING*3);
if (t->hidden) {
SDL_ShowWindow(t->window);
SDL_SyncWindow(t->window);
t->hidden = false;
}
SDL_SetRenderDrawColor(t->renderer, 0, 0, 0x20, 0xff);
SDL_RenderClear(t->renderer);
SDL_SetRenderDrawColor(t->renderer, 0, 0, 0, 0xff);
SDL_FRect dst = {PADDING, PADDING, tw, th};
SDL_RenderTexture(t->renderer, t->texture, NULL, &dst);
SDL_FRect border_rect = {0, 0, tw + PADDING*2, th + PADDING*2};
SDL_SetRenderDrawColor(t->renderer, 0x50, 0x50, 0x50, 0xff);
SDL_RenderRect(t->renderer, &border_rect);
must(SDL_RenderPresent(t->renderer));
}
void hide_tooltip(tooltip *t) {
if (t->window && !t->hidden) {
SDL_HideWindow(t->window);
t->hidden = true;
}
}
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