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// License: CC0 / Public Domain
#pragma once
#define NK_INCLUDE_FIXED_TYPES
#define NK_INCLUDE_DEFAULT_ALLOCATOR
#define NK_INCLUDE_STANDARD_IO
#define NK_INCLUDE_STANDARD_BOOL
#define NK_INCLUDE_STANDARD_VARARGS
#define NK_INCLUDE_VERTEX_BUFFER_OUTPUT
#define NK_INCLUDE_FONT_BAKING
#define NK_INCLUDE_DEFAULT_FONT
#define NK_BUTTON_TRIGGER_ON_RELEASE
#define NK_UINT_DRAW_INDEX
#include <nuklear.h>
#include "common.h"
#include "window.h"
struct ui;
struct ui *ui_create(pl_gpu gpu);
void ui_destroy(struct ui **ui);
// Update/Logic/Draw cycle
void ui_update_input(struct ui *ui, const struct window *window);
struct nk_context *ui_get_context(struct ui *ui);
bool ui_draw(struct ui *ui, const struct pl_swapchain_frame *frame);
// Helper function to draw a custom widget for drag&drop operations, returns
// true if the widget is hovered
static inline bool ui_widget_hover(struct nk_context *nk, const char *label)
{
struct nk_rect bounds;
if (!nk_widget(&bounds, nk))
return false;
struct nk_command_buffer *canvas = nk_window_get_canvas(nk);
bool hover = nk_input_is_mouse_hovering_rect(&nk->input, bounds);
float h, s, v;
nk_color_hsv_f(&h, &s, &v, nk->style.window.background);
struct nk_color background = nk_hsv_f(h, s, v + (hover ? 0.1f : -0.02f));
struct nk_color border = nk_hsv_f(h, s, v + 0.20f);
nk_fill_rect(canvas, bounds, 0.0f, background);
nk_stroke_rect(canvas, bounds, 0.0f, 2.0f, border);
const float pad = 10.0f;
struct nk_rect text = {
.x = bounds.x + pad,
.y = bounds.y + pad,
.w = bounds.w - 2 * pad,
.h = bounds.h - 2 * pad,
};
nk_draw_text(canvas, text, label, nk_strlen(label), nk->style.font,
background, nk->style.text.color);
return hover;
}
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