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/* Headers. */
#include <stdio.h>
#include <SDL2/SDL.h>
#include "renderer.h"
#include "microui.h"
#include "widget.h"
#include "ui.h"
/* Constants. */
static const char TITLE[] = "volute";
static const char button_map[256] = {
[ SDL_BUTTON_LEFT & 0xff ] = MU_MOUSE_LEFT,
[ SDL_BUTTON_RIGHT & 0xff ] = MU_MOUSE_RIGHT,
[ SDL_BUTTON_MIDDLE & 0xff ] = MU_MOUSE_MIDDLE,
};
static const char key_map[256] = {
[ SDLK_LSHIFT & 0xff ] = MU_KEY_SHIFT,
[ SDLK_RSHIFT & 0xff ] = MU_KEY_SHIFT,
[ SDLK_LCTRL & 0xff ] = MU_KEY_CTRL,
[ SDLK_RCTRL & 0xff ] = MU_KEY_CTRL,
[ SDLK_LALT & 0xff ] = MU_KEY_ALT,
[ SDLK_RALT & 0xff ] = MU_KEY_ALT,
[ SDLK_RETURN & 0xff ] = MU_KEY_RETURN,
[ SDLK_BACKSPACE & 0xff ] = MU_KEY_BACKSPACE,
};
/* Function declarations. */
static int text_width(mu_Font font, const char *text, int len);
static int text_height(mu_Font font);
static void main_loop(mu_Context *ctx, UI *ui);
static void handle_events(mu_Context *ctx);
static void handle_event(SDL_Event e, mu_Context *ctx);
static void process_frame(mu_Context *ctx, UI *ui);
static void main_window(mu_Context *ctx, UI *ui);
static void render(mu_Context *ctx);
static void render_command(mu_Command *cmd);
/* Global variables. */
static char logbuf[64000];
static int logbuf_updated = 0;
static float bg[3] = {90, 95, 100};
/* Function Definitions. */
int
main(void) {
/* Init SDL and renderer. */
SDL_Init(SDL_INIT_EVERYTHING);
r_init();
/* Init microui. */
static mu_Context ctx;
mu_init(&ctx);
ctx.text_width = text_width;
ctx.text_height = text_height;
/* Init data structures. */
static UI ui;
init_ui(&ui);
main_loop(&ctx, &ui);
return 0;
}
static int
text_width(mu_Font font, const char *text, int len) {
if (len < 0) {
len = strlen(text);
}
return r_get_text_width(text, len);
}
static int
text_height(mu_Font font) {
return r_get_text_height();
}
static void
main_loop(mu_Context *ctx, UI *ui) {
for (;;) {
handle_events(ctx);
process_frame(ctx, ui);
render(ctx);
}
}
static void
handle_events(mu_Context *ctx) {
SDL_Event e;
while (SDL_PollEvent(&e)) {
handle_event(e, ctx);
}
}
static void
handle_event(SDL_Event e, mu_Context *ctx) {
switch (e.type) {
case SDL_QUIT: {
exit(EXIT_SUCCESS);
}
break; case SDL_MOUSEMOTION: {
mu_input_mousemove(ctx, e.motion.x, e.motion.y);
}
break; case SDL_MOUSEWHEEL: {
mu_input_scroll(ctx, 0, e.wheel.y * -30);
}
break; case SDL_TEXTINPUT: {
mu_input_text(ctx, e.text.text);
}
break; case SDL_MOUSEBUTTONDOWN: case SDL_MOUSEBUTTONUP: {
int b = button_map[e.button.button & 0xff];
if (b && e.type == SDL_MOUSEBUTTONDOWN) {
mu_input_mousedown(ctx, e.button.x, e.button.y, b);
}
if (b && e.type == SDL_MOUSEBUTTONUP) {
mu_input_mouseup(ctx, e.button.x, e.button.y, b);
}
}
break; case SDL_KEYDOWN: case SDL_KEYUP: {
int c = key_map[e.key.keysym.sym & 0xff];
if (c && e.type == SDL_KEYDOWN) {
mu_input_keydown(ctx, c);
}
if (c && e.type == SDL_KEYUP) {
mu_input_keyup(ctx, c);
}
}
}
}
static void
process_frame(mu_Context *ctx, UI *ui) {
mu_begin(ctx);
main_window(ctx, ui);
mu_end(ctx);
}
static void
main_window(mu_Context *ctx, UI *ui) {
int w, h;
r_get_window_size(&w, &h);
if (!mu_begin_window(ctx, TITLE, mu_rect(0, 0, w, h))) {
exit(EXIT_SUCCESS);
}
/* TODO */
mu_layout_row(ctx, 2, (int[]) {0, 0}, 0);
static double value = 0.0;
if (field(ctx, &ui->displacement) & MU_RES_CHANGE) {
/* TODO */
value = ui->displacement.value;
}
static char buf[64];
snprintf(buf, sizeof(buf), "%lf", value);
mu_label(ctx, buf);
mu_end_window(ctx);
}
static void
render(mu_Context *ctx) {
r_clear(mu_color(bg[0], bg[1], bg[2], 255));
mu_Command *cmd = NULL;
while (mu_next_command(ctx, &cmd)) {
render_command(cmd);
}
r_present();
}
static void
render_command(mu_Command *cmd) {
switch (cmd->type) {
case MU_COMMAND_TEXT: {
r_draw_text(cmd->text.str, cmd->text.pos, cmd->text.color);
}
break; case MU_COMMAND_RECT: {
r_draw_rect(cmd->rect.rect, cmd->rect.color);
}
break; case MU_COMMAND_ICON: {
r_draw_icon(cmd->icon.id, cmd->icon.rect, cmd->icon.color);
}
break; case MU_COMMAND_CLIP: {
r_set_clip_rect(cmd->clip.rect);
}
}
}
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