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static void menu_open(Ted *ted, Menu menu) {
ted->menu = menu;
ted->prev_active_buffer = ted->active_buffer;
ted->active_buffer = NULL;
switch (menu) {
case MENU_NONE: assert(0); break;
case MENU_OPEN:
ted->active_buffer = &ted->line_buffer;
break;
}
}
static void menu_close(Ted *ted, bool restore_prev_active_buffer) {
ted->menu = MENU_NONE;
if (restore_prev_active_buffer) ted->active_buffer = ted->prev_active_buffer;
ted->prev_active_buffer = NULL;
buffer_clear(&ted->line_buffer);
}
// returns the rectangle of the screen coordinates of the menu
static Rect menu_rect(Ted *ted) {
Settings *settings = &ted->settings;
float window_width = ted->window_width, window_height = ted->window_height;
float padding = settings->padding;
float menu_width = settings->max_menu_width;
menu_width = minf(menu_width, window_width - 2 * padding);
return rect(
V2(window_width * 0.5f - 0.5f * menu_width, padding),
V2(menu_width, window_height - 2 * padding)
);
}
// where is the ith entry in the file selector on the screen?
// returns false if it's completely offscreen
static bool file_selector_entry_pos(Ted const *ted, FileSelector const *fs,
u32 i, Rect *r) {
Rect bounds = fs->bounds;
float char_height = text_font_char_height(ted->font);
*r = rect(V2(bounds.pos.x, bounds.pos.y + char_height * (float)i),
V2(bounds.size.x, char_height));
return rect_clip_to_rect(r, bounds);
}
// clear the entries in the file selector
static void file_selector_clear_entries(FileSelector *fs) {
for (u32 i = 0; i < fs->n_entries; ++i) {
free(fs->entries[i].name);
}
free(fs->entries);
fs->entries = NULL;
fs->n_entries = 0;
}
static void file_selector_free(FileSelector *fs) {
file_selector_clear_entries(fs);
}
// returns the entry of the selected file, or a NULL entry (check .name == NULL)
// if none was selected
static FileEntry file_selector_update(Ted *ted, FileSelector *fs, String32 const search_term32) {
char *search_term = search_term32.len ? str32_to_utf8_cstr(search_term32) : NULL;
// check if an entry was clicked on
for (u32 i = 0; i < fs->n_entries; ++i) {
Rect r = {0};
if (file_selector_entry_pos(ted, fs, i, &r)) {
for (u32 c = 0; c < ted->nmouse_clicks[SDL_BUTTON_LEFT]; ++c) {
if (rect_contains_point(r, ted->mouse_clicks[SDL_BUTTON_LEFT][c])) {
// this option was selected
free(search_term);
return fs->entries[i];
}
}
} else break;
}
// free previous entries
file_selector_clear_entries(fs);
// get new entries
char **files = fs_list_directory(".");
if (files) {
u32 nfiles;
for (nfiles = 0; files[nfiles]; ++nfiles);
if (search_term && *search_term) {
// filter entries based on search term
u32 in, out = 0;
for (in = 0; in < nfiles; ++in) {
if (stristr(files[in], search_term)) {
free(files[out]);
files[out++] = files[in];
}
}
nfiles = out;
}
if (nfiles) {
FileEntry *entries = ted_calloc(ted, nfiles, sizeof *entries);
if (entries) {
fs->n_entries = nfiles;
fs->entries = entries;
for (u32 i = 0; i < nfiles; ++i) {
entries[i].name = files[i];
entries[i].type = fs_path_type(files[i]);
}
}
}
} else {
#if DEBUG
static bool have_warned;
if (!have_warned) {
debug_println("Warning: fs_list_directory failed.");
have_warned = true;
}
#endif
}
free(search_term);
FileEntry ret = {0};
return ret;
}
static void file_selector_render(Ted const *ted, FileSelector const *fs) {
Settings const *settings = &ted->settings;
u32 const *colors = settings->colors;
Rect bounds = fs->bounds;
u32 n_entries = fs->n_entries;
FileEntry const *entries = fs->entries;
Font *font = ted->font;
float char_height = text_font_char_height(ted->font);
float x1, y1, x2, y2;
rect_coords(bounds, &x1, &y1, &x2, &y2);
float x = x1, y = y1;
for (u32 i = 0; i < n_entries; ++i) {
// highlight entry user is mousing over
if (y >= y2) break;
Rect r = rect4(x, y, x2, minf(y + char_height, y2));
y += char_height;
if (rect_contains_point(r, ted->mouse_pos)) {
glBegin(GL_QUADS);
gl_color_rgba(colors[COLOR_MENU_HL]);
rect_render(r);
glEnd();
}
}
x = x1; y = y1;
TextRenderState text_render_state = {.min_x = x1, .max_x = x2, .min_y = y1, .max_y = y2, .render = true};
// render file names themselves
for (u32 i = 0; i < n_entries; ++i) {
if (y >= y2) break;
switch (entries[i].type) {
case FS_FILE:
gl_color_rgba(colors[COLOR_TEXT]);
break;
case FS_DIRECTORY:
gl_color_rgba(colors[COLOR_TEXT_FOLDER]);
default:
gl_color_rgba(colors[COLOR_TEXT_OTHER]);
break;
}
text_render_with_state(font, &text_render_state, entries[i].name, x, y);
y += char_height;
}
}
static void menu_update(Ted *ted, Menu menu) {
switch (menu) {
case MENU_NONE: break;
case MENU_OPEN: {
FileEntry selected_entry = file_selector_update(ted, &ted->file_selector,
buffer_get_line(&ted->line_buffer, 0));
if (selected_entry.name) {
// open that file!
if (ted_open_file(ted, selected_entry.name)) {
menu_close(ted, false);
file_selector_free(&ted->file_selector);
}
}
} break;
}
}
static void menu_render(Ted *ted, Menu menu) {
Settings *settings = &ted->settings;
u32 *colors = settings->colors;
Font *font = ted->font;
float window_width = ted->window_width, window_height = ted->window_height;
float char_height = text_font_char_height(font);
// render backdrop
glBegin(GL_QUADS);
gl_color_rgba(colors[COLOR_MENU_BACKDROP]);
rect_render(rect(V2(0, 0), V2(window_width, window_height)));
glEnd();
if (menu == MENU_OPEN) {
float padding = 20;
float menu_x1 = window_width * 0.5f - 300;
float menu_x2 = window_width * 0.5f + 300;
menu_x1 = maxf(menu_x1, padding);
menu_x2 = minf(menu_x2, window_width - padding);
float menu_y1 = padding;
float menu_y2 = window_height - padding;
Rect menu_rect = rect4(menu_x1, menu_y1, menu_x2, menu_y2);
float inner_padding = 10;
// menu rectangle & border
glBegin(GL_QUADS);
gl_color_rgba(colors[COLOR_MENU_BG]);
rect_render(menu_rect);
gl_color_rgba(colors[COLOR_BORDER]);
rect_render_border(menu_rect, settings->border_thickness);
glEnd();
menu_x1 += inner_padding;
menu_y1 += inner_padding;
menu_x2 -= inner_padding;
menu_y2 -= inner_padding;
float line_buffer_height = char_height * 1.5f;
float line_buffer_x1 = menu_x1,
line_buffer_y1 = menu_y1,
line_buffer_x2 = menu_x2,
line_buffer_y2 = line_buffer_y1 + line_buffer_height;
buffer_render(&ted->line_buffer, line_buffer_x1, line_buffer_y1, line_buffer_x2, line_buffer_y2);
FileSelector *fs = &ted->file_selector;
fs->bounds = rect4(menu_x1, line_buffer_y2, menu_x2, menu_y2);
file_selector_render(ted, fs);
}
}
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