From de9e1e4540bb610d7aea2238681cca2c872c5cf6 Mon Sep 17 00:00:00 2001 From: Filip Date: Mon, 11 Jan 2021 20:59:56 +0100 Subject: [PATCH] Fixed completion and hint panel positioning in TextExit --- scene/gui/text_edit.cpp | 112 ++++++++++++++++++++++++---------------- 1 file changed, 67 insertions(+), 45 deletions(-) diff --git a/scene/gui/text_edit.cpp b/scene/gui/text_edit.cpp index 7557d36298e..a2cb2f3aa3e 100644 --- a/scene/gui/text_edit.cpp +++ b/scene/gui/text_edit.cpp @@ -810,8 +810,8 @@ void TextEdit::_notification(int p_what) { } } + bool is_cursor_line_visible = false; Point2 cursor_pos; - int cursor_insert_offset_y = 0; // Get the highlighted words. String highlighted_text = get_selection_text(); @@ -1238,6 +1238,7 @@ void TextEdit::_notification(int p_what) { } } + const int line_top_offset_y = ofs_y; ofs_y += (row_height - text_height) / 2; const Vector visual = TS->shaped_text_get_glyphs(rid); @@ -1320,7 +1321,9 @@ void TextEdit::_notification(int p_what) { int caret_width = 1; #endif if (cursor.line == line && ((line_wrap_index == line_wrap_amount) || (cursor.column != TS->shaped_text_get_range(rid).y))) { - cursor_pos.y = ofs_y + ldata->get_line_descent(line_wrap_index); + is_cursor_line_visible = true; + cursor_pos.y = line_top_offset_y; + if (ime_text.length() == 0) { Rect2 l_caret, t_caret; TextServer::Direction l_dir, t_dir; @@ -1439,78 +1442,97 @@ void TextEdit::_notification(int p_what) { } bool completion_below = false; - if (completion_active && completion_options.size() > 0) { - // Code completion box. - Ref csb = get_theme_stylebox("completion"); - int maxlines = get_theme_constant("completion_lines"); - int cmax_width = get_theme_constant("completion_max_width") * cache.font->get_char_size('x', 0, cache.font_size).x; - int scrollw = get_theme_constant("completion_scroll_width"); - Color scrollc = get_theme_color("completion_scroll_color"); + if (completion_active && is_cursor_line_visible && completion_options.size() > 0) { + // Completion panel + + const Ref csb = get_theme_stylebox("completion"); + const int maxlines = get_theme_constant("completion_lines"); + const int cmax_width = get_theme_constant("completion_max_width") * cache.font->get_char_size('x', 0, cache.font_size).x; + const Color scrollc = get_theme_color("completion_scroll_color"); const int completion_options_size = completion_options.size(); - int lines = MIN(completion_options_size, maxlines); - int w = 0; - int h = lines * row_height; - int nofs = cache.font->get_string_size(completion_base, cache.font_size).width; + const int row_count = MIN(completion_options_size, maxlines); + const int completion_rows_height = row_count * row_height; + const int completion_base_width = cache.font->get_string_size(completion_base, cache.font_size).width; + int scroll_rectangle_width = get_theme_constant("completion_scroll_width"); + int width = 0; + + // Compute max width of the panel based on the longest completion option if (completion_options_size < 50) { for (int i = 0; i < completion_options_size; i++) { - int w2 = MIN(cache.font->get_string_size(completion_options[i].display, cache.font_size).x, cmax_width); - if (w2 > w) { - w = w2; + int line_width = MIN(cache.font->get_string_size(completion_options[i].display, cache.font_size).x, cmax_width); + if (line_width > width) { + width = line_width; } } } else { - w = cmax_width; + width = cmax_width; } // Add space for completion icons. const int icon_hsep = get_theme_constant("hseparation", "ItemList"); - Size2 icon_area_size(row_height, row_height); - w += icon_area_size.width + icon_hsep; + const Size2 icon_area_size(row_height, row_height); + const int icon_area_width = icon_area_size.width + icon_hsep; + width += icon_area_width; - int line_from = CLAMP(completion_index - lines / 2, 0, completion_options_size - lines); + const int line_from = CLAMP(completion_index - row_count / 2, 0, completion_options_size - row_count); - for (int i = 0; i < lines; i++) { + for (int i = 0; i < row_count; i++) { int l = line_from + i; ERR_CONTINUE(l < 0 || l >= completion_options_size); if (completion_options[l].default_value.get_type() == Variant::COLOR) { - w += icon_area_size.width; + width += icon_area_size.width; break; } } - int th = h + csb->get_minimum_size().y; + // Position completion panel + completion_rect.size.width = width + 2; + completion_rect.size.height = completion_rows_height; - if (cursor_pos.y + row_height + th > get_size().height) { - completion_rect.position.y = cursor_pos.y - th - (cache.line_spacing / 2.0f) - cursor_insert_offset_y; + if (completion_options_size <= maxlines) { + scroll_rectangle_width = 0; + } + + const Point2 csb_offset = csb->get_offset(); + + const int total_width = completion_rect.size.width + csb->get_minimum_size().x + scroll_rectangle_width; + const int total_height = completion_rect.size.height + csb->get_minimum_size().y; + + const int rect_left_border_x = cursor_pos.x - completion_base_width - icon_area_width - csb_offset.x; + const int rect_right_border_x = rect_left_border_x + total_width; + + if (rect_left_border_x < 0) { + // Anchor the completion panel to the left + completion_rect.position.x = 0; + } else if (rect_right_border_x > get_size().width) { + // Anchor the completion panel to the right + completion_rect.position.x = get_size().width - total_width; } else { - completion_rect.position.y = cursor_pos.y + cache.font->get_height(cache.font_size) + (cache.line_spacing / 2.0f) + csb->get_offset().y - cursor_insert_offset_y; + // Let the completion panel float with the cursor + completion_rect.position.x = rect_left_border_x; + } + + if (cursor_pos.y + row_height + total_height > get_size().height) { + // Completion panel above the cursor line + completion_rect.position.y = cursor_pos.y - total_height; + } else { + // Completion panel below the cursor line + completion_rect.position.y = cursor_pos.y + row_height; completion_below = true; } - if (cursor_pos.x - nofs + w + scrollw > get_size().width) { - completion_rect.position.x = get_size().width - w - scrollw; - } else { - completion_rect.position.x = cursor_pos.x - nofs; - } - - completion_rect.size.width = w + 2; - completion_rect.size.height = h; - if (completion_options_size <= maxlines) { - scrollw = 0; - } - - draw_style_box(csb, Rect2(completion_rect.position - csb->get_offset(), completion_rect.size + csb->get_minimum_size() + Size2(scrollw, 0))); + draw_style_box(csb, Rect2(completion_rect.position - csb_offset, completion_rect.size + csb->get_minimum_size() + Size2(scroll_rectangle_width, 0))); if (cache.completion_background_color.a > 0.01) { - RenderingServer::get_singleton()->canvas_item_add_rect(ci, Rect2(completion_rect.position, completion_rect.size + Size2(scrollw, 0)), cache.completion_background_color); + RenderingServer::get_singleton()->canvas_item_add_rect(ci, Rect2(completion_rect.position, completion_rect.size + Size2(scroll_rectangle_width, 0)), cache.completion_background_color); } RenderingServer::get_singleton()->canvas_item_add_rect(ci, Rect2(Point2(completion_rect.position.x, completion_rect.position.y + (completion_index - line_from) * get_row_height()), Size2(completion_rect.size.width, get_row_height())), cache.completion_selected_color); - draw_rect(Rect2(completion_rect.position + Vector2(icon_area_size.x + icon_hsep, 0), Size2(MIN(nofs, completion_rect.size.width - (icon_area_size.x + icon_hsep)), completion_rect.size.height)), cache.completion_existing_color); + draw_rect(Rect2(completion_rect.position + Vector2(icon_area_size.x + icon_hsep, 0), Size2(MIN(completion_base_width, completion_rect.size.width - (icon_area_size.x + icon_hsep)), completion_rect.size.height)), cache.completion_existing_color); - for (int i = 0; i < lines; i++) { + for (int i = 0; i < row_count; i++) { int l = line_from + i; ERR_CONTINUE(l < 0 || l >= completion_options_size); @@ -1550,11 +1572,11 @@ void TextEdit::_notification(int p_what) { tl->draw(ci, title_pos, completion_options[l].font_color); } - if (scrollw) { + if (scroll_rectangle_width) { // Draw a small scroll rectangle to show a position in the options. float r = (float)maxlines / completion_options_size; float o = (float)line_from / completion_options_size; - draw_rect(Rect2(completion_rect.position.x + completion_rect.size.width, completion_rect.position.y + o * completion_rect.size.y, scrollw, completion_rect.size.y * r), scrollc); + draw_rect(Rect2(completion_rect.position.x + completion_rect.size.width, completion_rect.position.y + o * completion_rect.size.y, scroll_rectangle_width, completion_rect.size.y * r), scrollc); } completion_line_ofs = line_from; @@ -1562,7 +1584,7 @@ void TextEdit::_notification(int p_what) { // Check to see if the hint should be drawn. bool show_hint = false; - if (completion_hint != "") { + if (is_cursor_line_visible && completion_hint != "") { if (completion_active) { if (completion_below && !callhint_below) { show_hint = true;