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rich_text_label.cpp
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/**************************************************************************/
/* rich_text_label.cpp */
/**************************************************************************/
/* This file is part of: */
/* GODOT ENGINE */
/* https://godotengine.org */
/**************************************************************************/
/* Copyright (c) 2014-present Godot Engine contributors (see AUTHORS.md). */
/* Copyright (c) 2007-2014 Juan Linietsky, Ariel Manzur. */
/* */
/* Permission is hereby granted, free of charge, to any person obtaining */
/* a copy of this software and associated documentation files (the */
/* "Software"), to deal in the Software without restriction, including */
/* without limitation the rights to use, copy, modify, merge, publish, */
/* distribute, sublicense, and/or sell copies of the Software, and to */
/* permit persons to whom the Software is furnished to do so, subject to */
/* the following conditions: */
/* */
/* The above copyright notice and this permission notice shall be */
/* included in all copies or substantial portions of the Software. */
/* */
/* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, */
/* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF */
/* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. */
/* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY */
/* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, */
/* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE */
/* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */
/**************************************************************************/
#include "rich_text_label.h"
#include "rich_text_label.compat.inc"
#include "core/input/input_map.h"
#include "core/math/math_defs.h"
#include "core/os/keyboard.h"
#include "core/os/os.h"
#include "scene/gui/label.h"
#include "scene/gui/rich_text_effect.h"
#include "scene/resources/atlas_texture.h"
#include "scene/theme/theme_db.h"
#include "servers/display_server.h"
#include "modules/modules_enabled.gen.h" // For regex.
#ifdef MODULE_REGEX_ENABLED
#include "modules/regex/regex.h"
#endif
RichTextLabel::ItemCustomFX::ItemCustomFX() {
type = ITEM_CUSTOMFX;
char_fx_transform.instantiate();
}
RichTextLabel::ItemCustomFX::~ItemCustomFX() {
_clear_children();
char_fx_transform.unref();
custom_effect.unref();
}
RichTextLabel::Item *RichTextLabel::_get_next_item(Item *p_item, bool p_free) const {
if (p_free) {
if (p_item->subitems.size()) {
return p_item->subitems.front()->get();
} else if (!p_item->parent) {
return nullptr;
} else if (p_item->E->next()) {
return p_item->E->next()->get();
} else {
// Go up until something with a next is found.
while (p_item->parent && !p_item->E->next()) {
p_item = p_item->parent;
}
if (p_item->parent) {
return p_item->E->next()->get();
} else {
return nullptr;
}
}
} else {
if (p_item->subitems.size() && p_item->type != ITEM_TABLE) {
return p_item->subitems.front()->get();
} else if (p_item->type == ITEM_FRAME) {
return nullptr;
} else if (p_item->E->next()) {
return p_item->E->next()->get();
} else {
// Go up until something with a next is found.
while (p_item->type != ITEM_FRAME && !p_item->E->next()) {
p_item = p_item->parent;
}
if (p_item->type != ITEM_FRAME) {
return p_item->E->next()->get();
} else {
return nullptr;
}
}
}
}
RichTextLabel::Item *RichTextLabel::_get_prev_item(Item *p_item, bool p_free) const {
if (p_free) {
if (p_item->subitems.size()) {
return p_item->subitems.back()->get();
} else if (!p_item->parent) {
return nullptr;
} else if (p_item->E->prev()) {
return p_item->E->prev()->get();
} else {
// Go back until something with a prev is found.
while (p_item->parent && !p_item->E->prev()) {
p_item = p_item->parent;
}
if (p_item->parent) {
return p_item->E->prev()->get();
} else {
return nullptr;
}
}
} else {
if (p_item->subitems.size() && p_item->type != ITEM_TABLE) {
return p_item->subitems.back()->get();
} else if (p_item->type == ITEM_FRAME) {
return nullptr;
} else if (p_item->E->prev()) {
return p_item->E->prev()->get();
} else {
// Go back until something with a prev is found.
while (p_item->type != ITEM_FRAME && !p_item->E->prev()) {
p_item = p_item->parent;
}
if (p_item->type != ITEM_FRAME) {
return p_item->E->prev()->get();
} else {
return nullptr;
}
}
}
}
Rect2 RichTextLabel::_get_text_rect() {
return Rect2(theme_cache.normal_style->get_offset(), get_size() - theme_cache.normal_style->get_minimum_size());
}
RichTextLabel::Item *RichTextLabel::_get_item_at_pos(RichTextLabel::Item *p_item_from, RichTextLabel::Item *p_item_to, int p_position) {
int offset = 0;
for (Item *it = p_item_from; it && it != p_item_to; it = _get_next_item(it)) {
switch (it->type) {
case ITEM_TEXT: {
ItemText *t = static_cast<ItemText *>(it);
offset += t->text.length();
if (offset > p_position) {
return it;
}
} break;
case ITEM_NEWLINE: {
offset += 1;
if (offset == p_position) {
return it;
}
} break;
case ITEM_IMAGE: {
offset += 1;
if (offset > p_position) {
return it;
}
} break;
case ITEM_TABLE: {
offset += 1;
} break;
default:
break;
}
}
return p_item_from;
}
String RichTextLabel::_roman(int p_num, bool p_capitalize) const {
if (p_num > 3999) {
return "ERR";
};
String s;
if (p_capitalize) {
const String roman_M[] = { "", "M", "MM", "MMM" };
const String roman_C[] = { "", "C", "CC", "CCC", "CD", "D", "DC", "DCC", "DCCC", "CM" };
const String roman_X[] = { "", "X", "XX", "XXX", "XL", "L", "LX", "LXX", "LXXX", "XC" };
const String roman_I[] = { "", "I", "II", "III", "IV", "V", "VI", "VII", "VIII", "IX" };
s = roman_M[p_num / 1000] + roman_C[(p_num % 1000) / 100] + roman_X[(p_num % 100) / 10] + roman_I[p_num % 10];
} else {
const String roman_M[] = { "", "m", "mm", "mmm" };
const String roman_C[] = { "", "c", "cc", "ccc", "cd", "d", "dc", "dcc", "dccc", "cm" };
const String roman_X[] = { "", "x", "xx", "xxx", "xl", "l", "lx", "lxx", "lxxx", "xc" };
const String roman_I[] = { "", "i", "ii", "iii", "iv", "v", "vi", "vii", "viii", "ix" };
s = roman_M[p_num / 1000] + roman_C[(p_num % 1000) / 100] + roman_X[(p_num % 100) / 10] + roman_I[p_num % 10];
}
return s;
}
String RichTextLabel::_letters(int p_num, bool p_capitalize) const {
int64_t n = p_num;
int chars = 0;
do {
n /= 24;
chars++;
} while (n);
String s;
s.resize(chars + 1);
char32_t *c = s.ptrw();
c[chars] = 0;
n = p_num;
do {
int mod = ABS(n % 24);
char a = (p_capitalize ? 'A' : 'a');
c[--chars] = a + mod - 1;
n /= 24;
} while (n);
return s;
}
String RichTextLabel::_get_prefix(Item *p_item, const Vector<int> &p_list_index, const Vector<ItemList *> &p_list_items) {
String prefix;
int segments = 0;
for (int i = 0; i < p_list_index.size(); i++) {
String segment;
if (p_list_items[i]->list_type == LIST_DOTS) {
if (segments == 0) {
prefix = p_list_items[i]->bullet;
}
break;
}
prefix = "." + prefix;
if (p_list_items[i]->list_type == LIST_NUMBERS) {
segment = itos(p_list_index[i]);
if (is_localizing_numeral_system()) {
segment = TS->format_number(segment, _find_language(p_item));
}
segments++;
} else if (p_list_items[i]->list_type == LIST_LETTERS) {
segment = _letters(p_list_index[i], p_list_items[i]->capitalize);
segments++;
} else if (p_list_items[i]->list_type == LIST_ROMAN) {
segment = _roman(p_list_index[i], p_list_items[i]->capitalize);
segments++;
}
prefix = segment + prefix;
}
return prefix;
}
void RichTextLabel::_update_line_font(ItemFrame *p_frame, int p_line, const Ref<Font> &p_base_font, int p_base_font_size) {
ERR_FAIL_NULL(p_frame);
ERR_FAIL_COND(p_line < 0 || p_line >= (int)p_frame->lines.size());
Line &l = p_frame->lines[p_line];
MutexLock lock(l.text_buf->get_mutex());
// Prefix.
Vector<int> list_index;
Vector<int> list_count;
Vector<ItemList *> list_items;
_find_list(l.from, list_index, list_count, list_items);
if (list_items.size() > 0) {
if (list_index[0] == 1) {
// List level start, shape all prefixes for this level and compute max. prefix width.
list_items[0]->max_width = 0;
int index = 0;
for (int i = p_line; i < (int)p_frame->lines.size(); i++) {
Line &list_l = p_frame->lines[i];
if (_find_list_item(list_l.from) == list_items[0]) {
index++;
Ref<Font> font = theme_cache.normal_font;
int font_size = theme_cache.normal_font_size;
ItemFont *font_it = _find_font(list_l.from);
if (font_it) {
if (font_it->font.is_valid()) {
font = font_it->font;
}
if (font_it->font_size > 0) {
font_size = font_it->font_size;
}
}
ItemFontSize *font_size_it = _find_font_size(list_l.from);
if (font_size_it && font_size_it->font_size > 0) {
font_size = font_size_it->font_size;
}
list_index.write[0] = index;
String prefix = _get_prefix(list_l.from, list_index, list_items);
list_l.text_prefix.instantiate();
list_l.text_prefix->set_direction(_find_direction(list_l.from));
list_l.text_prefix->add_string(prefix, font, font_size);
list_items.write[0]->max_width = MAX(list_items[0]->max_width, list_l.text_prefix->get_size().x);
}
}
}
l.prefix_width = list_items[0]->max_width;
}
RID t = l.text_buf->get_rid();
int spans = TS->shaped_get_span_count(t);
for (int i = 0; i < spans; i++) {
Item *it_span = items.get_or_null(TS->shaped_get_span_meta(t, i));
ItemText *it = reinterpret_cast<ItemText *>(it_span);
if (it) {
Ref<Font> font = p_base_font;
int font_size = p_base_font_size;
ItemFont *font_it = _find_font(it);
if (font_it) {
if (font_it->font.is_valid()) {
font = font_it->font;
}
if (font_it->font_size > 0) {
font_size = font_it->font_size;
}
}
ItemFontSize *font_size_it = _find_font_size(it);
if (font_size_it && font_size_it->font_size > 0) {
font_size = font_size_it->font_size;
}
TS->shaped_set_span_update_font(t, i, font->get_rids(), font_size, font->get_opentype_features());
} else {
TS->shaped_set_span_update_font(t, i, p_base_font->get_rids(), p_base_font_size, p_base_font->get_opentype_features());
}
}
Item *it_to = (p_line + 1 < (int)p_frame->lines.size()) ? p_frame->lines[p_line + 1].from : nullptr;
for (Item *it = l.from; it && it != it_to; it = _get_next_item(it)) {
switch (it->type) {
case ITEM_TABLE: {
ItemTable *table = static_cast<ItemTable *>(it);
for (Item *E : table->subitems) {
ERR_CONTINUE(E->type != ITEM_FRAME); // Children should all be frames.
ItemFrame *frame = static_cast<ItemFrame *>(E);
for (int i = 0; i < (int)frame->lines.size(); i++) {
_update_line_font(frame, i, p_base_font, p_base_font_size);
}
}
} break;
default:
break;
}
}
}
float RichTextLabel::_resize_line(ItemFrame *p_frame, int p_line, const Ref<Font> &p_base_font, int p_base_font_size, int p_width, float p_h) {
ERR_FAIL_NULL_V(p_frame, p_h);
ERR_FAIL_COND_V(p_line < 0 || p_line >= (int)p_frame->lines.size(), p_h);
Line &l = p_frame->lines[p_line];
MutexLock lock(l.text_buf->get_mutex());
l.indent = _find_margin(l.from, p_base_font, p_base_font_size) + l.prefix_width;
l.offset.x = l.indent;
l.text_buf->set_width(p_width - l.offset.x);
PackedFloat32Array tab_stops = _find_tab_stops(l.from);
if (!tab_stops.is_empty()) {
l.text_buf->tab_align(tab_stops);
} else if (tab_size > 0) { // Align inline tabs.
Vector<float> tabs;
tabs.push_back(tab_size * p_base_font->get_char_size(' ', p_base_font_size).width);
l.text_buf->tab_align(tabs);
}
Item *it_to = (p_line + 1 < (int)p_frame->lines.size()) ? p_frame->lines[p_line + 1].from : nullptr;
for (Item *it = l.from; it && it != it_to; it = _get_next_item(it)) {
switch (it->type) {
case ITEM_IMAGE: {
ItemImage *img = static_cast<ItemImage *>(it);
Size2 img_size = img->size;
if (img->size_in_percent) {
img_size = _get_image_size(img->image, p_width * img->rq_size.width / 100.f, p_width * img->rq_size.height / 100.f, img->region);
l.text_buf->resize_object(it->rid, img_size, img->inline_align);
}
} break;
case ITEM_TABLE: {
ItemTable *table = static_cast<ItemTable *>(it);
int col_count = table->columns.size();
for (int i = 0; i < col_count; i++) {
table->columns[i].width = 0;
}
for (Item *E : table->subitems) {
ERR_CONTINUE(E->type != ITEM_FRAME); // Children should all be frames.
ItemFrame *frame = static_cast<ItemFrame *>(E);
float prev_h = 0;
for (int i = 0; i < (int)frame->lines.size(); i++) {
MutexLock sub_lock(frame->lines[i].text_buf->get_mutex());
int w = _find_margin(frame->lines[i].from, p_base_font, p_base_font_size) + 1;
prev_h = _resize_line(frame, i, p_base_font, p_base_font_size, w, prev_h);
}
}
const int available_width = p_width - theme_cache.table_h_separation * (col_count - 1);
_set_table_size(table, available_width);
int row_idx = (table->align_to_row < 0) ? table->rows_baseline.size() - 1 : table->align_to_row;
if (table->rows_baseline.size() != 0 && row_idx < (int)table->rows_baseline.size()) {
l.text_buf->resize_object(it->rid, Size2(table->total_width, table->total_height), table->inline_align, Math::round(table->rows_baseline[row_idx]));
} else {
l.text_buf->resize_object(it->rid, Size2(table->total_width, table->total_height), table->inline_align);
}
} break;
default:
break;
}
}
l.offset.y = p_h;
return _calculate_line_vertical_offset(l);
}
float RichTextLabel::_shape_line(ItemFrame *p_frame, int p_line, const Ref<Font> &p_base_font, int p_base_font_size, int p_width, float p_h, int *r_char_offset) {
ERR_FAIL_NULL_V(p_frame, p_h);
ERR_FAIL_COND_V(p_line < 0 || p_line >= (int)p_frame->lines.size(), p_h);
Line &l = p_frame->lines[p_line];
MutexLock lock(l.text_buf->get_mutex());
BitField<TextServer::LineBreakFlag> autowrap_flags = TextServer::BREAK_MANDATORY;
switch (autowrap_mode) {
case TextServer::AUTOWRAP_WORD_SMART:
autowrap_flags = TextServer::BREAK_WORD_BOUND | TextServer::BREAK_ADAPTIVE | TextServer::BREAK_MANDATORY;
break;
case TextServer::AUTOWRAP_WORD:
autowrap_flags = TextServer::BREAK_WORD_BOUND | TextServer::BREAK_MANDATORY;
break;
case TextServer::AUTOWRAP_ARBITRARY:
autowrap_flags = TextServer::BREAK_GRAPHEME_BOUND | TextServer::BREAK_MANDATORY;
break;
case TextServer::AUTOWRAP_OFF:
break;
}
autowrap_flags = autowrap_flags | TextServer::BREAK_TRIM_EDGE_SPACES;
// Clear cache.
l.text_buf->clear();
l.text_buf->set_break_flags(autowrap_flags);
l.text_buf->set_justification_flags(_find_jst_flags(l.from));
l.char_offset = *r_char_offset;
l.char_count = 0;
// List prefix.
Vector<int> list_index;
Vector<int> list_count;
Vector<ItemList *> list_items;
_find_list(l.from, list_index, list_count, list_items);
if (list_items.size() > 0) {
if (list_index[0] == 1) {
// List level start, shape all prefixes for this level and compute max. prefix width.
list_items[0]->max_width = 0;
int index = 0;
for (int i = p_line; i < (int)p_frame->lines.size(); i++) {
Line &list_l = p_frame->lines[i];
if (_find_list_item(list_l.from) == list_items[0]) {
index++;
Ref<Font> font = theme_cache.normal_font;
int font_size = theme_cache.normal_font_size;
ItemFont *font_it = _find_font(list_l.from);
if (font_it) {
if (font_it->font.is_valid()) {
font = font_it->font;
}
if (font_it->font_size > 0) {
font_size = font_it->font_size;
}
}
ItemFontSize *font_size_it = _find_font_size(list_l.from);
if (font_size_it && font_size_it->font_size > 0) {
font_size = font_size_it->font_size;
}
list_index.write[0] = index;
String prefix = _get_prefix(list_l.from, list_index, list_items);
list_l.text_prefix.instantiate();
list_l.text_prefix->set_direction(_find_direction(list_l.from));
list_l.text_prefix->add_string(prefix, font, font_size);
list_items.write[0]->max_width = MAX(list_items[0]->max_width, list_l.text_prefix->get_size().x);
}
}
}
l.prefix_width = list_items[0]->max_width;
}
// Add indent.
l.indent = _find_margin(l.from, p_base_font, p_base_font_size) + l.prefix_width;
l.offset.x = l.indent;
l.text_buf->set_width(p_width - l.offset.x);
l.text_buf->set_alignment(_find_alignment(l.from));
l.text_buf->set_direction(_find_direction(l.from));
PackedFloat32Array tab_stops = _find_tab_stops(l.from);
if (!tab_stops.is_empty()) {
l.text_buf->tab_align(tab_stops);
} else if (tab_size > 0) { // Align inline tabs.
Vector<float> tabs;
tabs.push_back(tab_size * p_base_font->get_char_size(' ', p_base_font_size).width);
l.text_buf->tab_align(tabs);
}
// Shape current paragraph.
String txt;
Item *it_to = (p_line + 1 < (int)p_frame->lines.size()) ? p_frame->lines[p_line + 1].from : nullptr;
int remaining_characters = visible_characters - l.char_offset;
for (Item *it = l.from; it && it != it_to; it = _get_next_item(it)) {
if (visible_chars_behavior == TextServer::VC_CHARS_BEFORE_SHAPING && visible_characters >= 0 && remaining_characters <= 0) {
break;
}
switch (it->type) {
case ITEM_DROPCAP: {
// Add dropcap.
const ItemDropcap *dc = static_cast<ItemDropcap *>(it);
l.text_buf->set_dropcap(dc->text, dc->font, dc->font_size, dc->dropcap_margins);
l.dc_color = dc->color;
l.dc_ol_size = dc->ol_size;
l.dc_ol_color = dc->ol_color;
} break;
case ITEM_NEWLINE: {
Ref<Font> font = p_base_font;
int font_size = p_base_font_size;
ItemFont *font_it = _find_font(it);
if (font_it) {
if (font_it->font.is_valid()) {
font = font_it->font;
}
if (font_it->font_size > 0) {
font_size = font_it->font_size;
}
}
ItemFontSize *font_size_it = _find_font_size(it);
if (font_size_it && font_size_it->font_size > 0) {
font_size = font_size_it->font_size;
}
l.text_buf->add_string(String::chr(0x200B), font, font_size, String(), it->rid);
txt += "\n";
l.char_count++;
remaining_characters--;
} break;
case ITEM_TEXT: {
ItemText *t = static_cast<ItemText *>(it);
Ref<Font> font = p_base_font;
int font_size = p_base_font_size;
ItemFont *font_it = _find_font(it);
if (font_it) {
if (font_it->font.is_valid()) {
font = font_it->font;
}
if (font_it->font_size > 0) {
font_size = font_it->font_size;
}
}
ItemFontSize *font_size_it = _find_font_size(it);
if (font_size_it && font_size_it->font_size > 0) {
font_size = font_size_it->font_size;
}
String lang = _find_language(it);
String tx = t->text;
if (visible_chars_behavior == TextServer::VC_CHARS_BEFORE_SHAPING && visible_characters >= 0 && remaining_characters >= 0) {
tx = tx.substr(0, remaining_characters);
}
remaining_characters -= tx.length();
l.text_buf->add_string(tx, font, font_size, lang, it->rid);
txt += tx;
l.char_count += tx.length();
} break;
case ITEM_IMAGE: {
ItemImage *img = static_cast<ItemImage *>(it);
Size2 img_size = img->size;
if (img->size_in_percent) {
img_size = _get_image_size(img->image, p_width * img->rq_size.width / 100.f, p_width * img->rq_size.height / 100.f, img->region);
}
l.text_buf->add_object(it->rid, img_size, img->inline_align, 1);
txt += String::chr(0xfffc);
l.char_count++;
remaining_characters--;
} break;
case ITEM_TABLE: {
ItemTable *table = static_cast<ItemTable *>(it);
int col_count = table->columns.size();
int t_char_count = 0;
// Set minimums to zero.
for (int i = 0; i < col_count; i++) {
table->columns[i].min_width = 0;
table->columns[i].max_width = 0;
table->columns[i].width = 0;
}
// Compute minimum width for each cell.
const int available_width = p_width - theme_cache.table_h_separation * (col_count - 1);
int idx = 0;
for (Item *E : table->subitems) {
ERR_CONTINUE(E->type != ITEM_FRAME); // Children should all be frames.
ItemFrame *frame = static_cast<ItemFrame *>(E);
int column = idx % col_count;
float prev_h = 0;
for (int i = 0; i < (int)frame->lines.size(); i++) {
MutexLock sub_lock(frame->lines[i].text_buf->get_mutex());
int char_offset = l.char_offset + l.char_count;
int w = _find_margin(frame->lines[i].from, p_base_font, p_base_font_size) + 1;
prev_h = _shape_line(frame, i, p_base_font, p_base_font_size, w, prev_h, &char_offset);
int cell_ch = (char_offset - (l.char_offset + l.char_count));
l.char_count += cell_ch;
t_char_count += cell_ch;
remaining_characters -= cell_ch;
table->columns[column].min_width = MAX(table->columns[column].min_width, frame->lines[i].indent + ceil(frame->lines[i].text_buf->get_size().x));
table->columns[column].max_width = MAX(table->columns[column].max_width, frame->lines[i].indent + ceil(frame->lines[i].text_buf->get_non_wrapped_size().x));
}
idx++;
}
_set_table_size(table, available_width);
int row_idx = (table->align_to_row < 0) ? table->rows_baseline.size() - 1 : table->align_to_row;
if (table->rows_baseline.size() != 0 && row_idx < (int)table->rows_baseline.size()) {
l.text_buf->add_object(it->rid, Size2(table->total_width, table->total_height), table->inline_align, t_char_count, Math::round(table->rows_baseline[row_idx]));
} else {
l.text_buf->add_object(it->rid, Size2(table->total_width, table->total_height), table->inline_align, t_char_count);
}
txt += String::chr(0xfffc).repeat(t_char_count);
} break;
default:
break;
}
}
// Apply BiDi override.
l.text_buf->set_bidi_override(structured_text_parser(_find_stt(l.from), st_args, txt));
*r_char_offset = l.char_offset + l.char_count;
l.offset.y = p_h;
return _calculate_line_vertical_offset(l);
}
void RichTextLabel::_set_table_size(ItemTable *p_table, int p_available_width) {
int col_count = p_table->columns.size();
// Compute available width and total ratio (for expanders).
int total_ratio = 0;
int remaining_width = p_available_width;
p_table->total_width = theme_cache.table_h_separation;
for (int i = 0; i < col_count; i++) {
remaining_width -= p_table->columns[i].min_width;
if (p_table->columns[i].max_width > p_table->columns[i].min_width) {
p_table->columns[i].expand = true;
}
if (p_table->columns[i].expand) {
total_ratio += p_table->columns[i].expand_ratio;
}
}
// Assign actual widths.
for (int i = 0; i < col_count; i++) {
p_table->columns[i].width = p_table->columns[i].min_width;
if (p_table->columns[i].expand && total_ratio > 0 && remaining_width > 0) {
p_table->columns[i].width += p_table->columns[i].expand_ratio * remaining_width / total_ratio;
}
if (i != col_count - 1) {
p_table->total_width += p_table->columns[i].width + theme_cache.table_h_separation;
} else {
p_table->total_width += p_table->columns[i].width;
}
}
// Resize to max_width if needed and distribute the remaining space.
bool table_need_fit = true;
while (table_need_fit) {
table_need_fit = false;
// Fit slim.
for (int i = 0; i < col_count; i++) {
if (!p_table->columns[i].expand || !p_table->columns[i].shrink) {
continue;
}
int dif = p_table->columns[i].width - p_table->columns[i].max_width;
if (dif > 0) {
table_need_fit = true;
p_table->columns[i].width = p_table->columns[i].max_width;
p_table->total_width -= dif;
total_ratio -= p_table->columns[i].expand_ratio;
}
}
// Grow.
remaining_width = p_available_width - p_table->total_width;
if (remaining_width > 0 && total_ratio > 0) {
for (int i = 0; i < col_count; i++) {
if (p_table->columns[i].expand) {
int dif = p_table->columns[i].max_width - p_table->columns[i].width;
if (dif > 0) {
int slice = p_table->columns[i].expand_ratio * remaining_width / total_ratio;
int incr = MIN(dif, slice);
p_table->columns[i].width += incr;
p_table->total_width += incr;
}
}
}
}
}
// Update line width and get total height.
int idx = 0;
p_table->total_height = 0;
p_table->rows.clear();
p_table->rows_baseline.clear();
Vector2 offset = Vector2(theme_cache.table_h_separation * 0.5, theme_cache.table_v_separation * 0.5).floor();
float row_height = 0.0;
for (const List<Item *>::Element *E = p_table->subitems.front(); E; E = E->next()) {
ERR_CONTINUE(E->get()->type != ITEM_FRAME); // Children should all be frames.
ItemFrame *frame = static_cast<ItemFrame *>(E->get());
int column = idx % col_count;
offset.x += frame->padding.position.x;
float yofs = frame->padding.position.y;
float prev_h = 0;
float row_baseline = 0.0;
for (int i = 0; i < (int)frame->lines.size(); i++) {
MutexLock sub_lock(frame->lines[i].text_buf->get_mutex());
frame->lines[i].text_buf->set_width(p_table->columns[column].width);
p_table->columns[column].width = MAX(p_table->columns[column].width, ceil(frame->lines[i].text_buf->get_size().x));
frame->lines[i].offset.y = prev_h;
float h = frame->lines[i].text_buf->get_size().y + (frame->lines[i].text_buf->get_line_count() - 1) * theme_cache.line_separation;
if (i > 0) {
h += theme_cache.line_separation;
}
if (frame->min_size_over.y > 0) {
h = MAX(h, frame->min_size_over.y);
}
if (frame->max_size_over.y > 0) {
h = MIN(h, frame->max_size_over.y);
}
yofs += h;
prev_h = frame->lines[i].offset.y + frame->lines[i].text_buf->get_size().y + frame->lines[i].text_buf->get_line_count() * theme_cache.line_separation;
frame->lines[i].offset += offset;
row_baseline = MAX(row_baseline, frame->lines[i].text_buf->get_line_ascent(frame->lines[i].text_buf->get_line_count() - 1));
}
yofs += frame->padding.size.y;
offset.x += p_table->columns[column].width + theme_cache.table_h_separation + frame->padding.size.x;
row_height = MAX(yofs, row_height);
// Add row height after last column of the row or last cell of the table.
if (column == col_count - 1 || E->next() == nullptr) {
offset.x = Math::floor(theme_cache.table_h_separation * 0.5);
row_height += theme_cache.table_v_separation;
p_table->total_height += row_height;
offset.y += row_height;
p_table->rows.push_back(row_height);
p_table->rows_baseline.push_back(p_table->total_height - row_height + row_baseline + Math::floor(theme_cache.table_v_separation * 0.5));
row_height = 0;
}
idx++;
}
}
int RichTextLabel::_draw_line(ItemFrame *p_frame, int p_line, const Vector2 &p_ofs, int p_width, float p_vsep, const Color &p_base_color, int p_outline_size, const Color &p_outline_color, const Color &p_font_shadow_color, int p_shadow_outline_size, const Point2 &p_shadow_ofs, int &r_processed_glyphs) {
ERR_FAIL_NULL_V(p_frame, 0);
ERR_FAIL_COND_V(p_line < 0 || p_line >= (int)p_frame->lines.size(), 0);
Vector2 off;
Line &l = p_frame->lines[p_line];
MutexLock lock(l.text_buf->get_mutex());
Item *it_from = l.from;
if (it_from == nullptr) {
return 0;
}
RID ci = get_canvas_item();
bool rtl = (l.text_buf->get_direction() == TextServer::DIRECTION_RTL);
bool lrtl = is_layout_rtl();
bool trim_chars = (visible_characters >= 0) && (visible_chars_behavior == TextServer::VC_CHARS_AFTER_SHAPING);
bool trim_glyphs_ltr = (visible_characters >= 0) && ((visible_chars_behavior == TextServer::VC_GLYPHS_LTR) || ((visible_chars_behavior == TextServer::VC_GLYPHS_AUTO) && !lrtl));
bool trim_glyphs_rtl = (visible_characters >= 0) && ((visible_chars_behavior == TextServer::VC_GLYPHS_RTL) || ((visible_chars_behavior == TextServer::VC_GLYPHS_AUTO) && lrtl));
int total_glyphs = (trim_glyphs_ltr || trim_glyphs_rtl) ? get_total_glyph_count() : 0;
int visible_glyphs = total_glyphs * visible_ratio;
// Draw dropcap.
int dc_lines = l.text_buf->get_dropcap_lines();
float h_off = l.text_buf->get_dropcap_size().x;
bool skip_dc = (trim_chars && l.char_offset > visible_characters) || (trim_glyphs_ltr && (r_processed_glyphs >= visible_glyphs)) || (trim_glyphs_rtl && (r_processed_glyphs < total_glyphs - visible_glyphs));
if (!skip_dc) {
if (l.dc_ol_size > 0) {
l.text_buf->draw_dropcap_outline(ci, p_ofs + ((rtl) ? Vector2() : Vector2(l.offset.x, 0)), l.dc_ol_size, l.dc_ol_color);
}
l.text_buf->draw_dropcap(ci, p_ofs + ((rtl) ? Vector2() : Vector2(l.offset.x, 0)), l.dc_color);
}
int line_count = 0;
bool has_visible_chars = false;
// Bottom margin for text clipping.
float v_limit = theme_cache.normal_style->get_margin(SIDE_BOTTOM);
Size2 ctrl_size = get_size();
// Draw text.
for (int line = 0; line < l.text_buf->get_line_count(); line++) {
if (line > 0) {
off.y += (theme_cache.line_separation + p_vsep);
}
if (p_ofs.y + off.y >= ctrl_size.height - v_limit) {
break;
}
double l_height = l.text_buf->get_line_ascent(line) + l.text_buf->get_line_descent(line);
if (p_ofs.y + off.y + l_height <= 0) {
off.y += l_height;
continue;
}
float width = l.text_buf->get_width();
float length = l.text_buf->get_line_size(line).x;
// Draw line.
if (rtl) {
off.x = p_width - l.offset.x - width;
if (!lrtl && p_frame == main) { // Skip Scrollbar.
off.x -= scroll_w;
}
} else {
off.x = l.offset.x;
if (lrtl && p_frame == main) { // Skip Scrollbar.
off.x += scroll_w;
}
}
// Draw text.
switch (l.text_buf->get_alignment()) {
case HORIZONTAL_ALIGNMENT_FILL:
case HORIZONTAL_ALIGNMENT_LEFT: {
if (rtl) {
off.x += width - length;
}
} break;
case HORIZONTAL_ALIGNMENT_CENTER: {
off.x += Math::floor((width - length) / 2.0);
} break;
case HORIZONTAL_ALIGNMENT_RIGHT: {
if (!rtl) {
off.x += width - length;
}
} break;
}
bool skip_prefix = (visible_chars_behavior == TextServer::VC_CHARS_BEFORE_SHAPING && l.char_offset == visible_characters) || (trim_chars && l.char_offset > visible_characters) || (trim_glyphs_ltr && (r_processed_glyphs >= visible_glyphs)) || (trim_glyphs_rtl && (r_processed_glyphs < total_glyphs - visible_glyphs));
if (l.text_prefix.is_valid() && line == 0 && !skip_prefix) {
Color font_color = _find_color(l.from, p_base_color);
int outline_size = _find_outline_size(l.from, p_outline_size);
Color font_outline_color = _find_outline_color(l.from, p_outline_color);
Color font_shadow_color = p_font_shadow_color * Color(1, 1, 1, font_color.a);
if (rtl) {
if (p_shadow_outline_size > 0 && font_shadow_color.a != 0.0) {
l.text_prefix->draw_outline(ci, p_ofs + Vector2(off.x + length, 0) + p_shadow_ofs, p_shadow_outline_size, font_shadow_color);
}
if (outline_size > 0 && font_outline_color.a != 0.0) {
l.text_prefix->draw_outline(ci, p_ofs + Vector2(off.x + length, 0), outline_size, font_outline_color);
}
l.text_prefix->draw(ci, p_ofs + Vector2(off.x + length, 0), font_color);
} else {
if (p_shadow_outline_size > 0 && font_shadow_color.a != 0.0) {
l.text_prefix->draw_outline(ci, p_ofs + Vector2(off.x - l.text_prefix->get_size().x, 0) + p_shadow_ofs, p_shadow_outline_size, font_shadow_color);
}
if (outline_size > 0 && font_outline_color.a != 0.0) {
l.text_prefix->draw_outline(ci, p_ofs + Vector2(off.x - l.text_prefix->get_size().x, 0), outline_size, font_outline_color);
}
l.text_prefix->draw(ci, p_ofs + Vector2(off.x - l.text_prefix->get_size().x, 0), font_color);
}
}
if (line <= dc_lines) {
if (rtl) {
off.x -= h_off;
} else {
off.x += h_off;
}
}
RID rid = l.text_buf->get_line_rid(line);
double l_ascent = TS->shaped_text_get_ascent(rid);
Size2 l_size = TS->shaped_text_get_size(rid);
double upos = TS->shaped_text_get_underline_position(rid);
double uth = TS->shaped_text_get_underline_thickness(rid);
off.y += l_ascent;
const Glyph *glyphs = TS->shaped_text_get_glyphs(rid);
int gl_size = TS->shaped_text_get_glyph_count(rid);
Vector2i chr_range = TS->shaped_text_get_range(rid);
int sel_start = -1;
int sel_end = -1;
if (selection.active && (selection.from_frame->lines[selection.from_line].char_offset + selection.from_char) <= (l.char_offset + chr_range.y) && (selection.to_frame->lines[selection.to_line].char_offset + selection.to_char) >= (l.char_offset + chr_range.x)) {
sel_start = MAX(chr_range.x, (selection.from_frame->lines[selection.from_line].char_offset + selection.from_char) - l.char_offset);
sel_end = MIN(chr_range.y, (selection.to_frame->lines[selection.to_line].char_offset + selection.to_char) - l.char_offset);
}
int processed_glyphs_step = 0;
for (int step = DRAW_STEP_BACKGROUND; step < DRAW_STEP_MAX; step++) {
if (step == DRAW_STEP_TEXT) {
// Draw inlined objects.
Array objects = TS->shaped_text_get_objects(rid);
for (int i = 0; i < objects.size(); i++) {
Item *it = items.get_or_null(objects[i]);
if (it != nullptr) {
Vector2i obj_range = TS->shaped_text_get_object_range(rid, objects[i]);
if (trim_chars && l.char_offset + obj_range.y > visible_characters) {
continue;
}
if (trim_glyphs_ltr || trim_glyphs_rtl) {
int obj_glyph = r_processed_glyphs + TS->shaped_text_get_object_glyph(rid, objects[i]);
if ((trim_glyphs_ltr && (obj_glyph >= visible_glyphs)) || (trim_glyphs_rtl && (obj_glyph < total_glyphs - visible_glyphs))) {
continue;
}
}
Rect2 rect = TS->shaped_text_get_object_rect(rid, objects[i]);
switch (it->type) {
case ITEM_IMAGE: {
ItemImage *img = static_cast<ItemImage *>(it);
if (img->pad) {
Size2 pad_size = rect.size.min(img->image->get_size());
Vector2 pad_off = (rect.size - pad_size) / 2;
img->image->draw_rect(ci, Rect2(p_ofs + rect.position + off + pad_off, pad_size), false, img->color);
} else {
img->image->draw_rect(ci, Rect2(p_ofs + rect.position + off, rect.size), false, img->color);
}
} break;
case ITEM_TABLE: {
ItemTable *table = static_cast<ItemTable *>(it);
Color odd_row_bg = theme_cache.table_odd_row_bg;
Color even_row_bg = theme_cache.table_even_row_bg;
Color border = theme_cache.table_border;
float h_separation = theme_cache.table_h_separation;
float v_separation = theme_cache.table_v_separation;
int col_count = table->columns.size();
int row_count = table->rows.size();
int idx = 0;
for (Item *E : table->subitems) {
ItemFrame *frame = static_cast<ItemFrame *>(E);
int col = idx % col_count;
int row = idx / col_count;
if (frame->lines.size() != 0 && row < row_count) {
Vector2 coff = frame->lines[0].offset;
coff.x -= frame->lines[0].indent;
if (rtl) {
coff.x = rect.size.width - table->columns[col].width - coff.x;
}
if (row % 2 == 0) {
Color c = frame->odd_row_bg != Color(0, 0, 0, 0) ? frame->odd_row_bg : odd_row_bg;
if (c.a > 0.0) {
draw_rect(Rect2(p_ofs + rect.position + off + coff - frame->padding.position - Vector2(h_separation * 0.5, v_separation * 0.5).floor(), Size2(table->columns[col].width + h_separation + frame->padding.position.x + frame->padding.size.x, table->rows[row])), c, true);
}
} else {
Color c = frame->even_row_bg != Color(0, 0, 0, 0) ? frame->even_row_bg : even_row_bg;
if (c.a > 0.0) {
draw_rect(Rect2(p_ofs + rect.position + off + coff - frame->padding.position - Vector2(h_separation * 0.5, v_separation * 0.5).floor(), Size2(table->columns[col].width + h_separation + frame->padding.position.x + frame->padding.size.x, table->rows[row])), c, true);
}
}
Color bc = frame->border != Color(0, 0, 0, 0) ? frame->border : border;
if (bc.a > 0.0) {
draw_rect(Rect2(p_ofs + rect.position + off + coff - frame->padding.position - Vector2(h_separation * 0.5, v_separation * 0.5).floor(), Size2(table->columns[col].width + h_separation + frame->padding.position.x + frame->padding.size.x, table->rows[row])), bc, false);
}
}
for (int j = 0; j < (int)frame->lines.size(); j++) {