From e4651a44abfbf59c477b3ad0b3e5e6b069104ce0 Mon Sep 17 00:00:00 2001 From: bruvzg <7645683+bruvzg@users.noreply.github.com> Date: Tue, 12 Jan 2021 14:03:10 +0200 Subject: RichTextLabel: adds separate `get_total_x_count`, `get_visible_x_count` and `scroll_to_x` functions for wrapped lines and paragraphs (newlines). --- scene/gui/rich_text_label.cpp | 67 +++++++++++++++++++++++++++++++++++++------ scene/gui/rich_text_label.h | 7 ++++- 2 files changed, 64 insertions(+), 10 deletions(-) (limited to 'scene') diff --git a/scene/gui/rich_text_label.cpp b/scene/gui/rich_text_label.cpp index 05ca97491b..e934772371 100644 --- a/scene/gui/rich_text_label.cpp +++ b/scene/gui/rich_text_label.cpp @@ -618,11 +618,11 @@ void RichTextLabel::_shape_line(ItemFrame *p_frame, int p_line, const Ref } } -void RichTextLabel::_draw_line(ItemFrame *p_frame, int p_line, const Vector2 &p_ofs, int p_width, const Color &p_base_color, int p_outline_size, const Color &p_outline_color, const Color &p_font_color_shadow, bool p_shadow_as_outline, const Point2 &p_shadow_ofs) { +int RichTextLabel::_draw_line(ItemFrame *p_frame, int p_line, const Vector2 &p_ofs, int p_width, const Color &p_base_color, int p_outline_size, const Color &p_outline_color, const Color &p_font_color_shadow, bool p_shadow_as_outline, const Point2 &p_shadow_ofs) { Vector2 off; - ERR_FAIL_COND(p_frame == nullptr); - ERR_FAIL_COND(p_line < 0 || p_line >= p_frame->lines.size()); + ERR_FAIL_COND_V(p_frame == nullptr, 0); + ERR_FAIL_COND_V(p_line < 0 || p_line >= p_frame->lines.size(), 0); Line &l = p_frame->lines.write[p_line]; @@ -631,7 +631,7 @@ void RichTextLabel::_draw_line(ItemFrame *p_frame, int p_line, const Vector2 &p_ Variant meta; if (it_from == nullptr) { - return; + return 0; } RID ci = get_canvas_item(); @@ -699,14 +699,24 @@ void RichTextLabel::_draw_line(ItemFrame *p_frame, int p_line, const Vector2 &p_ } l.text_buf->draw_dropcap(ci, p_ofs + ((rtl) ? Vector2() : Vector2(l.offset.x, 0)), l.dc_color); + int line_count = 0; + Size2 ctrl_size = get_size(); // Draw text. for (int line = 0; line < l.text_buf->get_line_count(); line++) { RID rid = l.text_buf->get_line_rid(line); + if (p_ofs.y + off.y >= ctrl_size.height) { + break; + } + if (p_ofs.y + off.y + TS->shaped_text_get_size(rid).y <= 0) { + off.y += TS->shaped_text_get_size(rid).y; + continue; + } float width = l.text_buf->get_width(); float length = TS->shaped_text_get_width(rid); // Draw line. + line_count++; if (rtl) { off.x = p_width - l.offset.x - width; @@ -1068,6 +1078,8 @@ void RichTextLabel::_draw_line(ItemFrame *p_frame, int p_line, const Vector2 &p_ } off.y += TS->shaped_text_get_descent(rid); } + + return line_count; } void RichTextLabel::_find_click(ItemFrame *p_frame, const Point2i &p_click, ItemFrame **r_click_frame, int *r_click_line, Item **r_click_item, int *r_click_char, bool *r_outside) { @@ -1392,13 +1404,14 @@ void RichTextLabel::_notification(int p_what) { bool use_outline = get_theme_constant("shadow_as_outline"); Point2 shadow_ofs(get_theme_constant("shadow_offset_x"), get_theme_constant("shadow_offset_y")); + visible_paragraph_count = 0; visible_line_count = 0; // New cache draw. Point2 ofs = text_rect.get_position() + Vector2(0, main->lines[from_line].offset.y - vofs); while (ofs.y < size.height && from_line < main->lines.size()) { - visible_line_count++; - _draw_line(main, from_line, ofs, text_rect.size.x, base_color, outline_size, outline_color, font_color_shadow, use_outline, shadow_ofs); + visible_paragraph_count++; + visible_line_count += _draw_line(main, from_line, ofs, text_rect.size.x, base_color, outline_size, outline_color, font_color_shadow, use_outline, shadow_ofs); ofs.y += main->lines[from_line].text_buf->get_size().y; from_line++; } @@ -3367,14 +3380,46 @@ Error RichTextLabel::append_bbcode(const String &p_bbcode) { return OK; } +void RichTextLabel::scroll_to_paragraph(int p_paragraph) { + ERR_FAIL_INDEX(p_paragraph, main->lines.size()); + _validate_line_caches(main); + vscroll->set_value(main->lines[p_paragraph].offset.y); +} + +int RichTextLabel::get_paragraph_count() const { + return current_frame->lines.size(); +} + +int RichTextLabel::get_visible_paragraph_count() const { + if (!is_visible()) { + return 0; + } + return visible_paragraph_count; +} + void RichTextLabel::scroll_to_line(int p_line) { - ERR_FAIL_INDEX(p_line, main->lines.size()); _validate_line_caches(main); - vscroll->set_value(main->lines[p_line].offset.y); + + int line_count = 0; + for (int i = 0; i < main->lines.size(); i++) { + if ((line_count <= p_line) && (line_count + main->lines[i].text_buf->get_line_count() >= p_line)) { + float line_offset = 0.f; + for (int j = 0; j < p_line - line_count; j++) { + line_offset += main->lines[i].text_buf->get_line_size(j).y; + } + vscroll->set_value(main->lines[i].offset.y + line_offset); + return; + } + line_count += main->lines[i].text_buf->get_line_count(); + } } int RichTextLabel::get_line_count() const { - return current_frame->lines.size(); + int line_count = 0; + for (int i = 0; i < main->lines.size(); i++) { + line_count += main->lines[i].text_buf->get_line_count(); + } + return line_count; } int RichTextLabel::get_visible_line_count() const { @@ -3783,6 +3828,7 @@ void RichTextLabel::_bind_methods() { ClassDB::bind_method(D_METHOD("get_v_scroll"), &RichTextLabel::get_v_scroll); ClassDB::bind_method(D_METHOD("scroll_to_line", "line"), &RichTextLabel::scroll_to_line); + ClassDB::bind_method(D_METHOD("scroll_to_paragraph", "paragraph"), &RichTextLabel::scroll_to_paragraph); ClassDB::bind_method(D_METHOD("set_tab_size", "spaces"), &RichTextLabel::set_tab_size); ClassDB::bind_method(D_METHOD("get_tab_size"), &RichTextLabel::get_tab_size); @@ -3813,6 +3859,9 @@ void RichTextLabel::_bind_methods() { ClassDB::bind_method(D_METHOD("get_line_count"), &RichTextLabel::get_line_count); ClassDB::bind_method(D_METHOD("get_visible_line_count"), &RichTextLabel::get_visible_line_count); + ClassDB::bind_method(D_METHOD("get_paragraph_count"), &RichTextLabel::get_paragraph_count); + ClassDB::bind_method(D_METHOD("get_visible_paragraph_count"), &RichTextLabel::get_visible_paragraph_count); + ClassDB::bind_method(D_METHOD("get_content_height"), &RichTextLabel::get_content_height); ClassDB::bind_method(D_METHOD("parse_expressions_for_values", "expressions"), &RichTextLabel::parse_expressions_for_values); diff --git a/scene/gui/rich_text_label.h b/scene/gui/rich_text_label.h index a65cc5a451..ee37efb68b 100644 --- a/scene/gui/rich_text_label.h +++ b/scene/gui/rich_text_label.h @@ -337,6 +337,7 @@ private: bool updating_scroll; int current_idx = 1; int current_char_ofs = 0; + int visible_paragraph_count; int visible_line_count; int tab_size; @@ -393,7 +394,7 @@ private: void _shape_line(ItemFrame *p_frame, int p_line, const Ref &p_base_font, int p_base_font_size, int p_width, int *r_char_offset); void _resize_line(ItemFrame *p_frame, int p_line, const Ref &p_base_font, int p_base_font_size, int p_width); - void _draw_line(ItemFrame *p_frame, int p_line, const Vector2 &p_ofs, int p_width, const Color &p_base_color, int p_outline_size, const Color &p_outline_color, const Color &p_font_color_shadow, bool p_shadow_as_outline, const Point2 &shadow_ofs); + int _draw_line(ItemFrame *p_frame, int p_line, const Vector2 &p_ofs, int p_width, const Color &p_base_color, int p_outline_size, const Color &p_outline_color, const Color &p_font_color_shadow, bool p_shadow_as_outline, const Point2 &shadow_ofs); float _find_click_in_line(ItemFrame *p_frame, int p_line, const Vector2 &p_ofs, int p_width, const Point2i &p_click, ItemFrame **r_click_frame = nullptr, int *r_click_line = nullptr, Item **r_click_item = nullptr, int *r_click_char = nullptr); String _roman(int p_num, bool p_capitalize) const; @@ -507,6 +508,10 @@ public: bool search(const String &p_string, bool p_from_selection = false, bool p_search_previous = false); + void scroll_to_paragraph(int p_paragraph); + int get_paragraph_count() const; + int get_visible_paragraph_count() const; + void scroll_to_line(int p_line); int get_line_count() const; int get_visible_line_count() const; -- cgit v1.2.3