paint: add script tab auto complete
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luboslenco
@@ -103,6 +103,85 @@ void main() {\n\
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}
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}
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// Autocomplete popup (ctrl+space) listing the script api from minic_api.c
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#define TAB_SCRIPTS_AC_MAX 8
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bool tab_scripts_ac_show = false;
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i32 tab_scripts_ac_offset = 0;
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static bool tab_scripts_is_ident(char c) {
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return c == '_' || (c >= '0' && c <= '9') || (c >= 'A' && c <= 'Z') || (c >= 'a' && c <= 'z');
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}
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static i32 tab_scripts_line_start(char *text, i32 line) {
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i32 pos = 0;
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i32 l = 0;
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while (l < line && text[pos] != '\0') {
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if (text[pos] == '\n') {
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l++;
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}
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pos++;
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}
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return pos;
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}
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static i32 tab_scripts_prefix_len(char *text, i32 cursor) {
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i32 n = 0;
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while (cursor - n - 1 >= 0 && tab_scripts_is_ident(text[cursor - n - 1])) {
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n++;
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}
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return n;
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}
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static i32 tab_scripts_suffix_len(char *text, i32 cursor) {
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i32 n = 0;
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while (tab_scripts_is_ident(text[cursor + n])) {
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n++;
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}
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return n;
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}
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// Collect up to TAB_SCRIPTS_AC_MAX api symbols containing prefix
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static i32 tab_scripts_autocomplete_matches(char *prefix, char **names) {
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char *lower_prefix = to_lower_case(prefix);
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i32 func_count = minic_ext_func_count_get();
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i32 global_count = minic_global_count_get();
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i32 total = func_count + global_count;
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i32 n = 0;
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for (i32 i = 0; i < total && n < TAB_SCRIPTS_AC_MAX; ++i) {
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char *name = (char *)(i < func_count ? minic_ext_func_name_at(i) : minic_global_name_at(i - func_count));
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if (starts_with(to_lower_case(name), lower_prefix)) {
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names[n++] = name;
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}
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}
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for (i32 i = 0; i < total && n < TAB_SCRIPTS_AC_MAX; ++i) {
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char *name = (char *)(i < func_count ? minic_ext_func_name_at(i) : minic_global_name_at(i - func_count));
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char *lower = to_lower_case(name);
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if (!starts_with(lower, lower_prefix) && string_index_of(lower, lower_prefix) >= 0) {
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names[n++] = name;
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}
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}
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return n;
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}
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// Replace the whole identifier around the cursor with the chosen symbol
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static void tab_scripts_autocomplete_complete(char *name, i32 prefix_len, i32 suffix_len) {
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tab_scripts_prepare();
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char *text = g_project->script_datas->buffer[tab_scripts_selected];
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i32 line = tab_scripts_hscript->i;
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i32 col = g_ui->cursor_x;
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i32 cur = tab_scripts_line_start(text, line) + col;
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char *before = substring(text, 0, cur - prefix_len);
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char *after = substring(text, cur + suffix_len, string_length(text));
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tab_scripts_set(string("%s%s%s", before, name, after));
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tab_scripts_hscript->text = g_project->script_datas->buffer[tab_scripts_selected];
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i32 new_col = col - prefix_len + string_length(name);
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g_ui->cursor_x = new_col;
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g_ui->highlight_anchor = new_col;
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g_ui->cursor_sticky_x = new_col;
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strcpy(g_ui->text_selected, ui_extract_line(tab_scripts_hscript->text, line)); // Keep the active line in sync
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tab_scripts_ac_show = false;
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}
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void tab_scripts_draw(ui_handle_t *htab) {
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if (ui_tab(htab, tr("Scripts"), false, -1, false)) {
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@@ -159,9 +238,98 @@ void tab_scripts_draw(ui_handle_t *htab) {
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tab_scripts_prepare();
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tab_scripts_hscript->text = g_project->script_datas->buffer[tab_scripts_selected];
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bool ac_selected = g_ui->text_selected_handle == tab_scripts_hscript;
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if (!ac_selected) {
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tab_scripts_ac_show = false;
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}
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// Open the autocomplete popup on ctrl+space
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if (ac_selected && g_ui->is_ctrl_down && g_ui->is_key_pressed && g_ui->key_code == KEY_CODE_SPACE) {
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tab_scripts_ac_show = true;
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tab_scripts_ac_offset = 0;
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g_ui->is_key_pressed = false; // Consume so the editor ignores ctrl+space
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minic_register_builtins(); // Ensure the script api is registered
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}
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bool ac_accept = false;
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if (tab_scripts_ac_show && ac_selected && g_ui->is_key_pressed) {
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if (g_ui->key_code == KEY_CODE_DOWN) {
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tab_scripts_ac_offset++;
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g_ui->is_key_pressed = false;
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g_ui->key_code = 0;
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}
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else if (g_ui->key_code == KEY_CODE_UP) {
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tab_scripts_ac_offset--;
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g_ui->is_key_pressed = false;
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g_ui->key_code = 0;
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}
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else if (g_ui->key_code == KEY_CODE_RETURN || g_ui->key_code == KEY_CODE_TAB) {
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ac_accept = true;
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g_ui->is_key_pressed = false;
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g_ui->key_code = 0;
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}
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else if (g_ui->key_code == KEY_CODE_ESCAPE) {
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tab_scripts_ac_show = false;
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g_ui->is_key_pressed = false;
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g_ui->key_code = 0;
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}
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}
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ui_text_area(tab_scripts_hscript, UI_ALIGN_LEFT, true, "", false);
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g_project->script_datas->buffer[tab_scripts_selected] = tab_scripts_hscript->text;
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// Autocomplete popup
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if (tab_scripts_ac_show && ac_selected) {
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char *text = tab_scripts_hscript->text;
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i32 line = tab_scripts_hscript->i;
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i32 col = g_ui->cursor_x;
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i32 cur = tab_scripts_line_start(text, line) + col;
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i32 plen = tab_scripts_prefix_len(text, cur);
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i32 slen = tab_scripts_suffix_len(text, cur);
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char *prefix = substring(text, cur - plen, cur);
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char *names[TAB_SCRIPTS_AC_MAX];
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i32 n = tab_scripts_autocomplete_matches(prefix, names);
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if (n == 0) {
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tab_scripts_ac_show = false;
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}
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else {
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tab_scripts_ac_offset = tab_scripts_ac_offset < 0 ? 0 : (tab_scripts_ac_offset > n - 1 ? n - 1 : tab_scripts_ac_offset);
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if (ac_accept) {
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tab_scripts_autocomplete_complete(names[tab_scripts_ac_offset], plen, slen);
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}
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else {
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// Draw the list below the caret
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i32 row_h = math_floor(g_ui->font_size + 8 * UI_SCALE());
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f32 pad = 8 * UI_SCALE();
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f32 max_w = 0;
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for (i32 i = 0; i < n; ++i) {
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f32 w = draw_string_width(g_font, g_ui->font_size, names[i]);
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max_w = w > max_w ? w : max_w;
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}
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f32 px = g_ui->cursor_screen_x;
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f32 py = g_ui->cursor_screen_y + UI_ELEMENT_H();
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f32 pw = max_w + pad * 2;
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f32 ph = row_h * n;
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ui_draw_shadow(px, py, pw, ph);
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draw_set_color(g_theme->SEPARATOR_COL);
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draw_filled_rect(px, py, pw, ph);
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draw_set_font(g_font, g_ui->font_size);
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for (i32 i = 0; i < n; ++i) {
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f32 iy = py + row_h * i;
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if (i == tab_scripts_ac_offset) {
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draw_set_color(g_theme->HIGHLIGHT_COL);
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draw_filled_rect(px, iy, pw, row_h);
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}
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draw_set_color(g_theme->TEXT_COL);
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draw_string(names[i], px + pad, iy + math_floor((row_h - g_ui->font_size) / 2.0));
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}
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}
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}
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}
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ui_text_area_line_numbers = false;
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ui_text_area_scroll_past_end = false;
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gc_unroot(ui_text_area_coloring);
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