diff options
Diffstat (limited to 'main.c')
| -rw-r--r-- | main.c | 175 |
1 files changed, 175 insertions, 0 deletions
@@ -1,10 +1,185 @@ +/* Headers. */ + #include <stdio.h> #include <SDL2/SDL.h> #include "renderer.h" #include "microui.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); +static void handle_events(mu_Context *ctx); +static void handle_event(SDL_Event e, mu_Context *ctx); +static void process_frame(mu_Context *ctx); +static void main_window(mu_Context *ctx); +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; + + main_loop(&ctx); + 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) { + for (;;) { + handle_events(ctx); + process_frame(ctx); + 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) { + mu_begin(ctx); + main_window(ctx); + mu_end(ctx); +} + +static void +main_window(mu_Context *ctx) { + int w, h; + r_get_window_size(&w, &h); + + if (!mu_begin_window(ctx, TITLE, mu_rect(0, 0, w, h))) { + return; + } + /* TODO */ + mu_layout_row(ctx, 2, (int[]) {0, 0}, 0); + mu_label(ctx, "foo"); + mu_label(ctx, "bar"); + 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); + } + } +} |