/* vim: tabstop=4 shiftwidth=4 noexpandtab * This file is part of ToaruOS and is released under the terms * of the NCSA / University of Illinois License - see LICENSE.md * Copyright (C) 2018 K. Lange * * help-browser - Display documentation. * * This is a work-in-progress reimplementation of the help browser * from mainline ToaruOS. It is currently incomplete. * * Eventually, this should be a rich text document browser, almost * akin to a web browser. Right now it just says "Hello, world." */ #include #include #include #include #include #include #include #define APPLICATION_TITLE "Help Browser" static yutani_t * yctx; static yutani_window_t * main_window; static gfx_context_t * ctx; static int application_running = 1; static gfx_context_t * contents = NULL; static sprite_t * contents_sprite = NULL; static struct menu_bar menu_bar = {0}; static struct menu_bar_entries menu_entries[] = { {"File", "file"}, {"Go", "go"}, {"Help", "help"}, {NULL, NULL}, }; static void _menu_action_exit(struct MenuEntry * entry) { application_running = 0; } static void redraw_text(void) { draw_sdf_string(contents, 30, 30, "Hello, world.", 16, rgb(0,0,0), SDF_FONT_THIN); } static void reinitialize_contents(void) { if (contents) { free(contents); } if (contents_sprite) { sprite_free(contents_sprite); } /* Calculate height for current directory */ int calculated_height = 200; struct decor_bounds bounds; decor_get_bounds(main_window, &bounds); contents_sprite = create_sprite(main_window->width - bounds.width, calculated_height, ALPHA_EMBEDDED); contents = init_graphics_sprite(contents_sprite); draw_fill(contents, rgb(255,255,255)); /* Draw file entries */ redraw_text(); } static void redraw_window(void) { draw_fill(ctx, rgb(255,255,255)); render_decorations(main_window, ctx, APPLICATION_TITLE); struct decor_bounds bounds; decor_get_bounds(main_window, &bounds); menu_bar.x = bounds.left_width; menu_bar.y = bounds.top_height; menu_bar.width = ctx->width - bounds.width; menu_bar.window = main_window; menu_bar_render(&menu_bar, ctx); gfx_clear_clip(ctx); gfx_add_clip(ctx, bounds.left_width, bounds.top_height + MENU_BAR_HEIGHT, ctx->width - bounds.width, ctx->height - MENU_BAR_HEIGHT - bounds.height); draw_sprite(ctx, contents_sprite, bounds.left_width, bounds.top_height + MENU_BAR_HEIGHT); gfx_clear_clip(ctx); gfx_add_clip(ctx, 0, 0, ctx->width, ctx->height); flip(ctx); yutani_flip(yctx, main_window); } static void resize_finish(int w, int h) { int height_changed = (main_window->width != (unsigned int)w); yutani_window_resize_accept(yctx, main_window, w, h); reinit_graphics_yutani(ctx, main_window); if (height_changed) { reinitialize_contents(); } redraw_window(); yutani_window_resize_done(yctx, main_window); yutani_flip(yctx, main_window); } static void _menu_action_navigate(struct MenuEntry * entry) { /* go to entry->action */ } static void _menu_action_back(struct MenuEntry * entry) { /* go back */ } static void _menu_action_forward(struct MenuEntry * entry) { /* go forward */ } static void _menu_action_about(struct MenuEntry * entry) { /* Show About dialog */ char about_cmd[1024] = "\0"; strcat(about_cmd, "about \"About Help Browser\" /usr/share/icons/48/help.bmp \"ToaruOS Help Browser\" \"(C) 2018 K. Lange\n-\nPart of ToaruOS, which is free software\nreleased under the NCSA/University of Illinois\nlicense.\n-\n%https://toaruos.org\n%https://gitlab.com/toarus\" "); char coords[100]; sprintf(coords, "%d %d &", (int)main_window->x + (int)main_window->width / 2, (int)main_window->y + (int)main_window->height / 2); strcat(about_cmd, coords); system(about_cmd); redraw_window(); } int main(int argc, char * argv[]) { yctx = yutani_init(); init_decorations(); main_window = yutani_window_create(yctx, 640, 480); yutani_window_move(yctx, main_window, yctx->display_width / 2 - main_window->width / 2, yctx->display_height / 2 - main_window->height / 2); ctx = init_graphics_yutani_double_buffer(main_window); yutani_window_advertise_icon(yctx, main_window, APPLICATION_TITLE, "help"); menu_bar.entries = menu_entries; menu_bar.redraw_callback = redraw_window; menu_bar.set = menu_set_create(); struct MenuList * m = menu_create(); /* File */ menu_insert(m, menu_create_normal("exit",NULL,"Exit", _menu_action_exit)); menu_set_insert(menu_bar.set, "file", m); m = menu_create(); /* Go */ menu_insert(m, menu_create_normal("home","0_index.trt","Home",_menu_action_navigate)); menu_insert(m, menu_create_normal("bookmark","special:contents","Topics",_menu_action_navigate)); menu_insert(m, menu_create_separator()); menu_insert(m, menu_create_normal("back",NULL,"Back",_menu_action_back)); menu_insert(m, menu_create_normal("forward",NULL,"Forward",_menu_action_forward)); menu_set_insert(menu_bar.set, "go", m); m = menu_create(); menu_insert(m, menu_create_normal("help","help_browser.trt","Contents",_menu_action_navigate)); menu_insert(m, menu_create_separator()); menu_insert(m, menu_create_normal("star",NULL,"About " APPLICATION_TITLE,_menu_action_about)); menu_set_insert(menu_bar.set, "help", m); reinitialize_contents(); redraw_window(); while (application_running) { yutani_msg_t * m = yutani_poll(yctx); while (m) { if (menu_process_event(yctx, m)) { redraw_window(); } switch (m->type) { case YUTANI_MSG_KEY_EVENT: { struct yutani_msg_key_event * ke = (void*)m->data; if (ke->event.action == KEY_ACTION_DOWN && ke->event.keycode == 'q') { _menu_action_exit(NULL); } } break; case YUTANI_MSG_WINDOW_FOCUS_CHANGE: { struct yutani_msg_window_focus_change * wf = (void*)m->data; yutani_window_t * win = hashmap_get(yctx->windows, (void*)wf->wid); if (win == main_window) { win->focused = wf->focused; redraw_window(); } } break; case YUTANI_MSG_RESIZE_OFFER: { struct yutani_msg_window_resize * wr = (void*)m->data; if (wr->wid == main_window->wid) { resize_finish(wr->width, wr->height); } } break; case YUTANI_MSG_WINDOW_MOUSE_EVENT: { struct yutani_msg_window_mouse_event * me = (void*)m->data; yutani_window_t * win = hashmap_get(yctx->windows, (void*)me->wid); if (win == main_window) { int result = decor_handle_event(yctx, m); switch (result) { case DECOR_CLOSE: _menu_action_exit(NULL); break; case DECOR_RIGHT: /* right click in decoration, show appropriate menu */ decor_show_default_menu(main_window, main_window->x + me->new_x, main_window->y + me->new_y); break; default: /* Other actions */ break; } /* Menu bar */ menu_bar_mouse_event(yctx, main_window, &menu_bar, me, me->new_x, me->new_y); } } break; case YUTANI_MSG_WINDOW_CLOSE: case YUTANI_MSG_SESSION_END: _menu_action_exit(NULL); break; default: break; } free(m); m = yutani_poll_async(yctx); } } }