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godot/scene/gui/rich_text_label.cpp
robfram 5358befb41 Fix bad rendering of BBCode tables in RichTextLabel 
Text overflowed canvas as tables didn't calculate correctly the width
of their columns. They used the whole table width available for each
column. Also, the `cell` parameter was wrongly parsed if used with its
optional argument (expand ratio).

This PR fixs the parsing of `cell` parameter (i.e. `cell=e`) and the
distribution of the full table width between columns, but it overrides
automatically the `expand` flag if the column is smaller than it could
be, to allow a better UX out-of-the-box. It keeps the `expand_ratio`
flag to let the user customize how every column grows in relation to
the rest.

Partially fix #6289.
2018-03-18 18:06:24 +01:00

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/*************************************************************************/
/* rich_text_label.cpp */
/*************************************************************************/
/* This file is part of: */
/* GODOT ENGINE */
/* https://godotengine.org */
/*************************************************************************/
/* Copyright (c) 2007-2018 Juan Linietsky, Ariel Manzur. */
/* Copyright (c) 2014-2018 Godot Engine contributors (cf. AUTHORS.md) */
/* */
/* 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 "os/keyboard.h"
#include "os/os.h"
#include "scene/scene_string_names.h"
#ifdef TOOLS_ENABLED
#include "editor/editor_node.h"
#endif
RichTextLabel::Item *RichTextLabel::_get_next_item(Item *p_item, bool p_free) {
if (p_free) {
if (p_item->subitems.size()) {
return p_item->subitems.front()->get();
} else if (!p_item->parent) {
return NULL;
} 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 NULL;
}
} 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 NULL;
} 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 NULL;
}
}
return NULL;
}
Rect2 RichTextLabel::_get_text_rect() {
Ref<StyleBox> style = get_stylebox("normal");
return Rect2(style->get_offset(), get_size() - style->get_minimum_size());
}
int RichTextLabel::_process_line(ItemFrame *p_frame, const Vector2 &p_ofs, int &y, int p_width, int p_line, ProcessMode p_mode, const Ref<Font> &p_base_font, const Color &p_base_color, const Point2i &p_click_pos, Item **r_click_item, int *r_click_char, bool *r_outside, int p_char_count) {
RID ci;
if (r_outside)
*r_outside = false;
if (p_mode == PROCESS_DRAW) {
ci = get_canvas_item();
if (r_click_item)
*r_click_item = NULL;
}
Line &l = p_frame->lines[p_line];
Item *it = l.from;
int line_ofs = 0;
int margin = _find_margin(it, p_base_font);
Align align = _find_align(it);
int line = 0;
int spaces = 0;
int height = get_size().y;
if (p_mode != PROCESS_CACHE) {
ERR_FAIL_INDEX_V(line, l.offset_caches.size(), 0);
line_ofs = l.offset_caches[line];
}
if (p_mode == PROCESS_CACHE) {
l.offset_caches.clear();
l.height_caches.clear();
l.ascent_caches.clear();
l.descent_caches.clear();
l.char_count = 0;
l.minimum_width = 0;
l.maximum_width = 0;
}
int wofs = margin;
int spaces_size = 0;
int align_ofs = 0;
if (p_mode != PROCESS_CACHE && align != ALIGN_FILL)
wofs += line_ofs;
int begin = wofs;
Ref<Font> cfont = _find_font(it);
if (cfont.is_null())
cfont = p_base_font;
//line height should be the font height for the first time, this ensures that an empty line will never have zero height and successive newlines are displayed
int line_height = cfont->get_height();
int line_ascent = cfont->get_ascent();
int line_descent = cfont->get_descent();
int nonblank_line_count = 0; //number of nonblank lines as counted during PROCESS_DRAW
Variant meta;
#define RETURN return nonblank_line_count
#define NEW_LINE \
{ \
if (p_mode != PROCESS_CACHE) { \
line++; \
if (!line_is_blank) { \
nonblank_line_count++; \
} \
line_is_blank = true; \
if (line < l.offset_caches.size()) \
line_ofs = l.offset_caches[line]; \
wofs = margin; \
if (align != ALIGN_FILL) \
wofs += line_ofs; \
} else { \
int used = wofs - margin; \
switch (align) { \
case ALIGN_LEFT: l.offset_caches.push_back(0); break; \
case ALIGN_CENTER: l.offset_caches.push_back(((p_width - margin) - used) / 2); break; \
case ALIGN_RIGHT: l.offset_caches.push_back(((p_width - margin) - used)); break; \
case ALIGN_FILL: l.offset_caches.push_back((p_width - margin) - used /*+spaces_size*/); break; \
} \
l.height_caches.push_back(line_height); \
l.ascent_caches.push_back(line_ascent); \
l.descent_caches.push_back(line_descent); \
l.space_caches.push_back(spaces); \
} \
y += line_height + get_constant(SceneStringNames::get_singleton()->line_separation); \
line_height = 0; \
line_ascent = 0; \
line_descent = 0; \
spaces = 0; \
spaces_size = 0; \
wofs = begin; \
align_ofs = 0; \
if (p_mode != PROCESS_CACHE) { \
lh = line < l.height_caches.size() ? l.height_caches[line] : 1; \
line_ascent = line < l.ascent_caches.size() ? l.ascent_caches[line] : 1; \
line_descent = line < l.descent_caches.size() ? l.descent_caches[line] : 1; \
} \
if (p_mode == PROCESS_POINTER && r_click_item && p_click_pos.y >= p_ofs.y + y && p_click_pos.y <= p_ofs.y + y + lh && p_click_pos.x < p_ofs.x + wofs) { \
if (r_outside) *r_outside = true; \
*r_click_item = it; \
*r_click_char = rchar; \
RETURN; \
} \
}
#define ENSURE_WIDTH(m_width) \
if (p_mode == PROCESS_CACHE) { \
l.maximum_width = MAX(l.maximum_width, MIN(p_width, wofs + m_width)); \
l.minimum_width = MAX(l.minimum_width, m_width); \
} \
if (wofs + m_width > p_width) { \
if (p_mode == PROCESS_CACHE) { \
if (spaces > 0) \
spaces -= 1; \
} \
if (p_mode == PROCESS_POINTER && r_click_item && p_click_pos.y >= p_ofs.y + y && p_click_pos.y <= p_ofs.y + y + lh && p_click_pos.x > p_ofs.x + wofs) { \
if (r_outside) *r_outside = true; \
*r_click_item = it; \
*r_click_char = rchar; \
RETURN; \
} \
NEW_LINE \
}
#define ADVANCE(m_width) \
{ \
if (p_mode == PROCESS_POINTER && r_click_item && p_click_pos.y >= p_ofs.y + y && p_click_pos.y <= p_ofs.y + y + lh && p_click_pos.x >= p_ofs.x + wofs && p_click_pos.x < p_ofs.x + wofs + m_width) { \
if (r_outside) *r_outside = false; \
*r_click_item = it; \
*r_click_char = rchar; \
RETURN; \
} \
wofs += m_width; \
}
#define CHECK_HEIGHT(m_height) \
if (m_height > line_height) { \
line_height = m_height; \
}
#define YRANGE_VISIBLE(m_top, m_height) \
(m_height > 0 && ((m_top >= 0 && m_top < height) || ((m_top + m_height - 1) >= 0 && (m_top + m_height - 1) < height)))
Color selection_fg;
Color selection_bg;
if (p_mode == PROCESS_DRAW) {
selection_fg = get_color("font_color_selected");
selection_bg = get_color("selection_color");
}
int rchar = 0;
int lh = 0;
bool line_is_blank = true;
int fh = 0;
while (it) {
switch (it->type) {
case ITEM_TEXT: {
ItemText *text = static_cast<ItemText *>(it);
Ref<Font> font = _find_font(it);
if (font.is_null())
font = p_base_font;
const CharType *c = text->text.c_str();
const CharType *cf = c;
int ascent = font->get_ascent();
int descent = font->get_descent();
Color color;
bool underline = false;
if (p_mode == PROCESS_DRAW) {
color = _find_color(text, p_base_color);
underline = _find_underline(text);
if (_find_meta(text, &meta)) {
underline = true;
}
} else if (p_mode == PROCESS_CACHE) {
l.char_count += text->text.length();
}
rchar = 0;
while (*c) {
int end = 0;
int w = 0;
int fw = 0;
lh = 0;
if (p_mode != PROCESS_CACHE) {
lh = line < l.height_caches.size() ? l.height_caches[line] : 1;
line_ascent = line < l.ascent_caches.size() ? l.ascent_caches[line] : 1;
line_descent = line < l.descent_caches.size() ? l.descent_caches[line] : 1;
}
while (c[end] != 0 && !(end && c[end - 1] == ' ' && c[end] != ' ')) {
int cw = font->get_char_size(c[end], c[end + 1]).width;
if (c[end] == '\t') {
cw = tab_size * font->get_char_size(' ').width;
}
if (end > 0 && w + cw + begin > p_width) {
break; //don't allow lines longer than assigned width
}
w += cw;
fw += cw;
end++;
}
CHECK_HEIGHT(fh);
ENSURE_WIDTH(w);
line_ascent = MAX(line_ascent, ascent);
line_descent = MAX(line_descent, descent);
fh = line_ascent + line_descent;
if (end && c[end - 1] == ' ') {
if (p_mode == PROCESS_CACHE) {
spaces_size += font->get_char_size(' ').width;
} else if (align == ALIGN_FILL) {
int ln = MIN(l.offset_caches.size() - 1, line);
if (l.space_caches[ln]) {
align_ofs = spaces * l.offset_caches[ln] / l.space_caches[ln];
}
}
spaces++;
}
{
int ofs = 0;
for (int i = 0; i < end; i++) {
int pofs = wofs + ofs;
if (p_mode == PROCESS_POINTER && r_click_char && p_click_pos.y >= p_ofs.y + y && p_click_pos.y <= p_ofs.y + y + lh) {
//int o = (wofs+w)-p_click_pos.x;
int cw = font->get_char_size(c[i], c[i + 1]).x;
if (c[i] == '\t') {
cw = tab_size * font->get_char_size(' ').width;
}
if (p_click_pos.x - cw / 2 > p_ofs.x + align_ofs + pofs) {
rchar = int((&c[i]) - cf);
}
ofs += cw;
} else if (p_mode == PROCESS_DRAW) {
bool selected = false;
if (selection.active) {
int cofs = (&c[i]) - cf;
if ((text->index > selection.from->index || (text->index == selection.from->index && cofs >= selection.from_char)) && (text->index < selection.to->index || (text->index == selection.to->index && cofs <= selection.to_char))) {
selected = true;
}
}
int cw = 0;
bool visible = visible_characters < 0 || p_char_count < visible_characters && YRANGE_VISIBLE(y + lh - line_descent - line_ascent, line_ascent + line_descent);
if (visible)
line_is_blank = false;
if (c[i] == '\t')
visible = false;
if (selected) {
cw = font->get_char_size(c[i], c[i + 1]).x;
draw_rect(Rect2(p_ofs.x + pofs, p_ofs.y + y, cw, lh), selection_bg);
if (visible)
font->draw_char(ci, p_ofs + Point2(align_ofs + pofs, y + lh - line_descent), c[i], c[i + 1], override_selected_font_color ? selection_fg : color);
} else {
if (visible)
cw = font->draw_char(ci, p_ofs + Point2(align_ofs + pofs, y + lh - line_descent), c[i], c[i + 1], color);
}
p_char_count++;
if (c[i] == '\t') {
cw = tab_size * font->get_char_size(' ').width;
}
ofs += cw;
}
}
if (underline) {
Color uc = color;
uc.a *= 0.5;
int uy = y + lh - line_descent + 2;
float underline_width = 1.0;
#ifdef TOOLS_ENABLED
underline_width *= EDSCALE;
#endif
VS::get_singleton()->canvas_item_add_line(ci, p_ofs + Point2(align_ofs + wofs, uy), p_ofs + Point2(align_ofs + wofs + w, uy), uc, underline_width);
}
}
ADVANCE(fw);
CHECK_HEIGHT(fh); //must be done somewhere
c = &c[end];
}
} break;
case ITEM_IMAGE: {
lh = 0;
if (p_mode != PROCESS_CACHE)
lh = line < l.height_caches.size() ? l.height_caches[line] : 1;
else
l.char_count += 1; //images count as chars too
ItemImage *img = static_cast<ItemImage *>(it);
Ref<Font> font = _find_font(it);
if (font.is_null())
font = p_base_font;
if (p_mode == PROCESS_POINTER && r_click_char)
*r_click_char = 0;
ENSURE_WIDTH(img->image->get_width());
bool visible = visible_characters < 0 || p_char_count < visible_characters && YRANGE_VISIBLE(y + lh - font->get_descent() - img->image->get_height(), img->image->get_height());
if (visible)
line_is_blank = false;
if (p_mode == PROCESS_DRAW && visible) {
img->image->draw(ci, p_ofs + Point2(align_ofs + wofs, y + lh - font->get_descent() - img->image->get_height()));
}
p_char_count++;
ADVANCE(img->image->get_width());
CHECK_HEIGHT((img->image->get_height() + font->get_descent()));
} break;
case ITEM_NEWLINE: {
lh = 0;
if (p_mode != PROCESS_CACHE) {
lh = line < l.height_caches.size() ? l.height_caches[line] : 1;
line_is_blank = true;
}
} break;
case ITEM_TABLE: {
lh = 0;
ItemTable *table = static_cast<ItemTable *>(it);
int hseparation = get_constant("table_hseparation");
int vseparation = get_constant("table_vseparation");
Color ccolor = _find_color(table, p_base_color);
Vector2 draw_ofs = Point2(wofs, y);
if (p_mode == PROCESS_CACHE) {
int idx = 0;
//set minimums to zero
for (int i = 0; i < table->columns.size(); 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 - hseparation * (table->columns.size() - 1) - wofs;
for (List<Item *>::Element *E = 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 % table->columns.size();
int ly = 0;
for (int i = 0; i < frame->lines.size(); i++) {
_process_line(frame, Point2(), ly, available_width, i, PROCESS_CACHE, cfont, Color());
table->columns[column].min_width = MAX(table->columns[column].min_width, frame->lines[i].minimum_width);
table->columns[column].max_width = MAX(table->columns[column].max_width, frame->lines[i].maximum_width);
}
idx++;
}
//compute available width and total ratio (for expanders)
int total_ratio = 0;
int remaining_width = available_width;
table->total_width = hseparation;
for (int i = 0; i < table->columns.size(); i++) {
remaining_width -= table->columns[i].min_width;
if (table->columns[i].max_width > table->columns[i].min_width)
table->columns[i].expand = true;
if (table->columns[i].expand)
total_ratio += table->columns[i].expand_ratio;
}
//assign actual widths
for (int i = 0; i < table->columns.size(); i++) {
table->columns[i].width = table->columns[i].min_width;
if (table->columns[i].expand)
table->columns[i].width += table->columns[i].expand_ratio * remaining_width / total_ratio;
table->total_width += table->columns[i].width + hseparation;
}
//compute caches properly again with the right width
idx = 0;
for (List<Item *>::Element *E = 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 % table->columns.size();
for (int i = 0; i < frame->lines.size(); i++) {
int ly = 0;
_process_line(frame, Point2(), ly, table->columns[column].width, i, PROCESS_CACHE, cfont, Color());
frame->lines[i].height_cache = ly; //actual height
frame->lines[i].height_accum_cache = ly; //actual height
}
idx++;
}
}
Point2 offset(align_ofs + hseparation, vseparation);
int row_height = 0;
//draw using computed caches
int idx = 0;
for (List<Item *>::Element *E = 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 % table->columns.size();
int ly = 0;
int yofs = 0;
int lines_h = frame->lines[frame->lines.size() - 1].height_accum_cache - (frame->lines[0].height_accum_cache - frame->lines[0].height_cache);
int lines_ofs = p_ofs.y + offset.y + draw_ofs.y;
bool visible = lines_ofs < get_size().height && lines_ofs + lines_h >= 0;
if (visible)
line_is_blank = false;
for (int i = 0; i < frame->lines.size(); i++) {
if (visible) {
if (p_mode == PROCESS_DRAW) {
nonblank_line_count += _process_line(frame, p_ofs + offset + draw_ofs + Vector2(0, yofs), ly, table->columns[column].width, i, PROCESS_DRAW, cfont, ccolor);
} else if (p_mode == PROCESS_POINTER) {
_process_line(frame, p_ofs + offset + draw_ofs + Vector2(0, yofs), ly, table->columns[column].width, i, PROCESS_POINTER, cfont, ccolor, p_click_pos, r_click_item, r_click_char, r_outside);
if (r_click_item && *r_click_item) {
RETURN; // exit early
}
}
}
yofs += frame->lines[i].height_cache;
if (p_mode == PROCESS_CACHE) {
frame->lines[i].height_accum_cache = offset.y + draw_ofs.y + frame->lines[i].height_cache;
}
}
row_height = MAX(yofs, row_height);
offset.x += table->columns[column].width + hseparation;
if (column == table->columns.size() - 1) {
offset.y += row_height + vseparation;
offset.x = hseparation;
row_height = 0;
}
idx++;
}
int total_height = offset.y;
if (row_height) {
total_height = row_height + vseparation;
}
ADVANCE(table->total_width);
CHECK_HEIGHT(total_height);
} break;
default: {}
}
Item *itp = it;
it = _get_next_item(it);
if (it && (p_line + 1 < p_frame->lines.size()) && p_frame->lines[p_line + 1].from == it) {
if (p_mode == PROCESS_POINTER && r_click_item && p_click_pos.y >= p_ofs.y + y && p_click_pos.y <= p_ofs.y + y + lh) {
//went to next line, but pointer was on the previous one
if (r_outside) *r_outside = true;
*r_click_item = itp;
*r_click_char = rchar;
RETURN;
}
break;
}
}
NEW_LINE;
RETURN;
#undef RETURN
#undef NEW_LINE
#undef ENSURE_WIDTH
#undef ADVANCE
#undef CHECK_HEIGHT
}
void RichTextLabel::_scroll_changed(double) {
if (updating_scroll)
return;
if (scroll_follow && vscroll->get_value() >= (vscroll->get_max() - vscroll->get_page()))
scroll_following = true;
else
scroll_following = false;
update();
}
void RichTextLabel::_update_scroll() {
int total_height = 0;
if (main->lines.size())
total_height = main->lines[main->lines.size() - 1].height_accum_cache + get_stylebox("normal")->get_minimum_size().height;
bool exceeds = total_height > get_size().height && scroll_active;
if (exceeds != scroll_visible) {
if (exceeds) {
scroll_visible = true;
main->first_invalid_line = 0;
scroll_w = vscroll->get_combined_minimum_size().width;
vscroll->show();
vscroll->set_anchor_and_margin(MARGIN_LEFT, ANCHOR_END, -scroll_w);
_validate_line_caches(main);
} else {
scroll_visible = false;
vscroll->hide();
scroll_w = 0;
_validate_line_caches(main);
}
}
}
void RichTextLabel::_notification(int p_what) {
switch (p_what) {
case NOTIFICATION_RESIZED: {
main->first_invalid_line = 0; //invalidate ALL
update();
} break;
case NOTIFICATION_ENTER_TREE: {
if (bbcode != "")
set_bbcode(bbcode);
main->first_invalid_line = 0; //invalidate ALL
update();
} break;
case NOTIFICATION_THEME_CHANGED: {
if (is_inside_tree() && use_bbcode) {
parse_bbcode(bbcode);
//first_invalid_line=0; //invalidate ALL
//update();
}
} break;
case NOTIFICATION_DRAW: {
_validate_line_caches(main);
_update_scroll();
RID ci = get_canvas_item();
Size2 size = get_size();
Rect2 text_rect = _get_text_rect();
draw_style_box(get_stylebox("normal"), Rect2(Point2(), size));
if (has_focus()) {
VisualServer::get_singleton()->canvas_item_add_clip_ignore(ci, true);
draw_style_box(get_stylebox("focus"), Rect2(Point2(), size));
VisualServer::get_singleton()->canvas_item_add_clip_ignore(ci, false);
}
int ofs = vscroll->get_value();
//todo, change to binary search
int from_line = 0;
int total_chars = 0;
while (from_line < main->lines.size()) {
if (main->lines[from_line].height_accum_cache + _get_text_rect().get_position().y >= ofs)
break;
total_chars += main->lines[from_line].char_count;
from_line++;
}
if (from_line >= main->lines.size())
break; //nothing to draw
int y = (main->lines[from_line].height_accum_cache - main->lines[from_line].height_cache) - ofs;
Ref<Font> base_font = get_font("normal_font");
Color base_color = get_color("default_color");
visible_line_count = 0;
while (y < size.height && from_line < main->lines.size()) {
visible_line_count += _process_line(main, text_rect.get_position(), y, text_rect.get_size().width - scroll_w, from_line, PROCESS_DRAW, base_font, base_color, Point2i(), NULL, NULL, NULL, total_chars);
total_chars += main->lines[from_line].char_count;
from_line++;
}
}
}
}
void RichTextLabel::_find_click(ItemFrame *p_frame, const Point2i &p_click, Item **r_click_item, int *r_click_char, bool *r_outside) {
if (r_click_item)
*r_click_item = NULL;
Size2 size = get_size();
Rect2 text_rect = _get_text_rect();
int ofs = vscroll->get_value();
//todo, change to binary search
int from_line = 0;
while (from_line < p_frame->lines.size()) {
if (p_frame->lines[from_line].height_accum_cache >= ofs)
break;
from_line++;
}
if (from_line >= p_frame->lines.size())
return;
int y = (p_frame->lines[from_line].height_accum_cache - p_frame->lines[from_line].height_cache) - ofs;
Ref<Font> base_font = get_font("normal_font");
Color base_color = get_color("default_color");
while (y < text_rect.get_size().height && from_line < p_frame->lines.size()) {
_process_line(p_frame, text_rect.get_position(), y, text_rect.get_size().width - scroll_w, from_line, PROCESS_POINTER, base_font, base_color, p_click, r_click_item, r_click_char, r_outside);
if (r_click_item && *r_click_item)
return;
from_line++;
}
}
Control::CursorShape RichTextLabel::get_cursor_shape(const Point2 &p_pos) const {
if (!underline_meta || selection.click)
return CURSOR_ARROW;
if (main->first_invalid_line < main->lines.size())
return CURSOR_ARROW; //invalid
int line = 0;
Item *item = NULL;
((RichTextLabel *)(this))->_find_click(main, p_pos, &item, &line);
if (item && ((RichTextLabel *)(this))->_find_meta(item, NULL))
return CURSOR_POINTING_HAND;
return CURSOR_ARROW;
}
void RichTextLabel::_gui_input(Ref<InputEvent> p_event) {
Ref<InputEventMouseButton> b = p_event;
if (b.is_valid()) {
if (main->first_invalid_line < main->lines.size())
return;
if (b->get_button_index() == BUTTON_LEFT) {
if (true) {
if (b->is_pressed() && !b->is_doubleclick()) {
int line = 0;
Item *item = NULL;
bool outside;
_find_click(main, b->get_position(), &item, &line, &outside);
if (item) {
Variant meta;
if (!outside && _find_meta(item, &meta)) {
//meta clicked
emit_signal("meta_clicked", meta);
} else if (selection.enabled) {
selection.click = item;
selection.click_char = line;
// Erase previous selection.
if (selection.active) {
selection.from = NULL;
selection.from_char = NULL;
selection.to = NULL;
selection.to_char = NULL;
selection.active = false;
update();
}
}
}
} else if (b->is_pressed() && b->is_doubleclick() && selection.enabled) {
//doubleclick: select word
int line = 0;
Item *item = NULL;
bool outside;
_find_click(main, b->get_position(), &item, &line, &outside);
while (item && item->type != ITEM_TEXT) {
item = _get_next_item(item, true);
}
if (item && item->type == ITEM_TEXT) {
String itext = static_cast<ItemText *>(item)->text;
int beg, end;
if (select_word(itext, line, beg, end)) {
selection.from = item;
selection.to = item;
selection.from_char = beg;
selection.to_char = end - 1;
selection.active = true;
update();
}
}
} else if (!b->is_pressed()) {
selection.click = NULL;
}
}
}
if (b->get_button_index() == BUTTON_WHEEL_UP) {
if (scroll_active)
vscroll->set_value(vscroll->get_value() - vscroll->get_page() * b->get_factor() * 0.5 / 8);
}
if (b->get_button_index() == BUTTON_WHEEL_DOWN) {
if (scroll_active)
vscroll->set_value(vscroll->get_value() + vscroll->get_page() * b->get_factor() * 0.5 / 8);
}
}
Ref<InputEventPanGesture> pan_gesture = p_event;
if (pan_gesture.is_valid()) {
if (scroll_active)
vscroll->set_value(vscroll->get_value() + vscroll->get_page() * pan_gesture->get_delta().y * 0.5 / 8);
return;
}
Ref<InputEventKey> k = p_event;
if (k.is_valid()) {
if (k->is_pressed() && !k->get_alt() && !k->get_shift()) {
bool handled = true;
switch (k->get_scancode()) {
case KEY_PAGEUP: {
if (vscroll->is_visible_in_tree())
vscroll->set_value(vscroll->get_value() - vscroll->get_page());
} break;
case KEY_PAGEDOWN: {
if (vscroll->is_visible_in_tree())
vscroll->set_value(vscroll->get_value() + vscroll->get_page());
} break;
case KEY_UP: {
if (vscroll->is_visible_in_tree())
vscroll->set_value(vscroll->get_value() - get_font("normal_font")->get_height());
} break;
case KEY_DOWN: {
if (vscroll->is_visible_in_tree())
vscroll->set_value(vscroll->get_value() + get_font("normal_font")->get_height());
} break;
case KEY_HOME: {
if (vscroll->is_visible_in_tree())
vscroll->set_value(0);
} break;
case KEY_END: {
if (vscroll->is_visible_in_tree())
vscroll->set_value(vscroll->get_max());
} break;
case KEY_INSERT:
case KEY_C: {
if (k->get_command()) {
selection_copy();
} else {
handled = false;
}
} break;
default: handled = false;
}
if (handled)
accept_event();
}
}
Ref<InputEventMouseMotion> m = p_event;
if (m.is_valid()) {
if (main->first_invalid_line < main->lines.size())
return;
int line = 0;
Item *item = NULL;
bool outside;
_find_click(main, m->get_position(), &item, &line, &outside);
if (selection.click) {
if (!item)
return; // do not update
selection.from = selection.click;
selection.from_char = selection.click_char;
selection.to = item;
selection.to_char = line;
bool swap = false;
if (selection.from->index > selection.to->index)
swap = true;
else if (selection.from->index == selection.to->index) {
if (selection.from_char > selection.to_char)
swap = true;
else if (selection.from_char == selection.to_char) {
selection.active = false;
return;
}
}
if (swap) {
SWAP(selection.from, selection.to);
SWAP(selection.from_char, selection.to_char);
}
selection.active = true;
update();
}
Variant meta;
if (item && !outside && _find_meta(item, &meta)) {
if (meta_hovering != item) {
if (meta_hovering) {
emit_signal("meta_hover_ended", current_meta);
}
meta_hovering = static_cast<ItemMeta *>(item);
current_meta = meta;
emit_signal("meta_hover_started", meta);
}
} else if (meta_hovering) {
emit_signal("meta_hover_ended", current_meta);
meta_hovering = NULL;
current_meta = false;
}
}
}
Ref<Font> RichTextLabel::_find_font(Item *p_item) {
Item *fontitem = p_item;
while (fontitem) {
if (fontitem->type == ITEM_FONT) {
ItemFont *fi = static_cast<ItemFont *>(fontitem);
return fi->font;
}
fontitem = fontitem->parent;
}
return Ref<Font>();
}
int RichTextLabel::_find_margin(Item *p_item, const Ref<Font> &p_base_font) {
Item *item = p_item;
int margin = 0;
while (item) {
if (item->type == ITEM_INDENT) {
Ref<Font> font = _find_font(item);
if (font.is_null())
font = p_base_font;
ItemIndent *indent = static_cast<ItemIndent *>(item);
margin += indent->level * tab_size * font->get_char_size(' ').width;
} else if (item->type == ITEM_LIST) {
Ref<Font> font = _find_font(item);
if (font.is_null())
font = p_base_font;
}
item = item->parent;
}
return margin;
}
RichTextLabel::Align RichTextLabel::_find_align(Item *p_item) {
Item *item = p_item;
while (item) {
if (item->type == ITEM_ALIGN) {
ItemAlign *align = static_cast<ItemAlign *>(item);
return align->align;
}
item = item->parent;
}
return default_align;
}
Color RichTextLabel::_find_color(Item *p_item, const Color &p_default_color) {
Item *item = p_item;
while (item) {
if (item->type == ITEM_COLOR) {
ItemColor *color = static_cast<ItemColor *>(item);
return color->color;
}
item = item->parent;
}
return p_default_color;
}
bool RichTextLabel::_find_underline(Item *p_item) {
Item *item = p_item;
while (item) {
if (item->type == ITEM_UNDERLINE) {
return true;
}
item = item->parent;
}
return false;
}
bool RichTextLabel::_find_meta(Item *p_item, Variant *r_meta) {
Item *item = p_item;
while (item) {
if (item->type == ITEM_META) {
ItemMeta *meta = static_cast<ItemMeta *>(item);
if (r_meta)
*r_meta = meta->meta;
return true;
}
item = item->parent;
}
return false;
}
void RichTextLabel::_validate_line_caches(ItemFrame *p_frame) {
if (p_frame->first_invalid_line == p_frame->lines.size())
return;
//validate invalid lines
Size2 size = get_size();
Rect2 text_rect = _get_text_rect();
Ref<Font> base_font = get_font("normal_font");
for (int i = p_frame->first_invalid_line; i < p_frame->lines.size(); i++) {
int y = 0;
_process_line(p_frame, text_rect.get_position(), y, text_rect.get_size().width - scroll_w, i, PROCESS_CACHE, base_font, Color());
p_frame->lines[i].height_cache = y;
p_frame->lines[i].height_accum_cache = y;
if (i > 0)
p_frame->lines[i].height_accum_cache += p_frame->lines[i - 1].height_accum_cache;
}
int total_height = 0;
if (p_frame->lines.size())
total_height = p_frame->lines[p_frame->lines.size() - 1].height_accum_cache + get_stylebox("normal")->get_minimum_size().height;
main->first_invalid_line = p_frame->lines.size();
updating_scroll = true;
vscroll->set_max(total_height);
vscroll->set_page(size.height);
if (scroll_follow && scroll_following)
vscroll->set_value(total_height - size.height);
updating_scroll = false;
}
void RichTextLabel::_invalidate_current_line(ItemFrame *p_frame) {
if (p_frame->lines.size() - 1 <= p_frame->first_invalid_line) {
p_frame->first_invalid_line = p_frame->lines.size() - 1;
update();
}
}
void RichTextLabel::add_text(const String &p_text) {
if (current->type == ITEM_TABLE)
return; //can't add anything here
int pos = 0;
while (pos < p_text.length()) {
int end = p_text.find("\n", pos);
String line;
bool eol = false;
if (end == -1) {
end = p_text.length();
} else {
eol = true;
}
if (pos == 0 && end == p_text.length())
line = p_text;
else
line = p_text.substr(pos, end - pos);
if (line.length() > 0) {
if (current->subitems.size() && current->subitems.back()->get()->type == ITEM_TEXT) {
//append text condition!
ItemText *ti = static_cast<ItemText *>(current->subitems.back()->get());
ti->text += line;
_invalidate_current_line(main);
} else {
//append item condition
ItemText *item = memnew(ItemText);
item->text = line;
_add_item(item, false);
}
}
if (eol) {
ItemNewline *item = memnew(ItemNewline);
item->line = current_frame->lines.size();
_add_item(item, false);
current_frame->lines.resize(current_frame->lines.size() + 1);
if (item->type != ITEM_NEWLINE)
current_frame->lines[current_frame->lines.size() - 1].from = item;
_invalidate_current_line(current_frame);
}
pos = end + 1;
}
}
void RichTextLabel::_add_item(Item *p_item, bool p_enter, bool p_ensure_newline) {
p_item->parent = current;
p_item->E = current->subitems.push_back(p_item);
p_item->index = current_idx++;
if (p_enter)
current = p_item;
if (p_ensure_newline && current_frame->lines[current_frame->lines.size() - 1].from) {
_invalidate_current_line(current_frame);
current_frame->lines.resize(current_frame->lines.size() + 1);
}
if (current_frame->lines[current_frame->lines.size() - 1].from == NULL) {
current_frame->lines[current_frame->lines.size() - 1].from = p_item;
}
p_item->line = current_frame->lines.size() - 1;
_invalidate_current_line(current_frame);
}
void RichTextLabel::_remove_item(Item *p_item, const int p_line, const int p_subitem_line) {
int size = p_item->subitems.size();
if (size == 0) {
p_item->parent->subitems.erase(p_item);
if (p_item->type == ITEM_NEWLINE) {
current_frame->lines.remove(p_line);
for (int i = p_subitem_line; i < current->subitems.size(); i++) {
if (current->subitems[i]->line > 0)
current->subitems[i]->line--;
}
}
} else {
for (int i = 0; i < size; i++) {
_remove_item(p_item->subitems.front()->get(), p_line, p_subitem_line);
}
}
}
void RichTextLabel::add_image(const Ref<Texture> &p_image) {
if (current->type == ITEM_TABLE)
return;
ERR_FAIL_COND(p_image.is_null());
ItemImage *item = memnew(ItemImage);
item->image = p_image;
_add_item(item, false);
}
void RichTextLabel::add_newline() {
if (current->type == ITEM_TABLE)
return;
ItemNewline *item = memnew(ItemNewline);
item->line = current_frame->lines.size();
_add_item(item, false);
current_frame->lines.resize(current_frame->lines.size() + 1);
_invalidate_current_line(current_frame);
}
bool RichTextLabel::remove_line(const int p_line) {
if (p_line >= current_frame->lines.size() || p_line < 0)
return false;
int lines = p_line * 2;
if (current->subitems[lines]->type != ITEM_NEWLINE)
_remove_item(current->subitems[lines], current->subitems[lines]->line, lines);
_remove_item(current->subitems[lines], current->subitems[lines]->line, lines);
if (p_line == 0) {
main->lines[0].from = main;
}
main->first_invalid_line = 0;
return true;
}
void RichTextLabel::push_font(const Ref<Font> &p_font) {
ERR_FAIL_COND(current->type == ITEM_TABLE);
ERR_FAIL_COND(p_font.is_null());
ItemFont *item = memnew(ItemFont);
item->font = p_font;
_add_item(item, true);
}
void RichTextLabel::push_color(const Color &p_color) {
ERR_FAIL_COND(current->type == ITEM_TABLE);
ItemColor *item = memnew(ItemColor);
item->color = p_color;
_add_item(item, true);
}
void RichTextLabel::push_underline() {
ERR_FAIL_COND(current->type == ITEM_TABLE);
ItemUnderline *item = memnew(ItemUnderline);
_add_item(item, true);
}
void RichTextLabel::push_align(Align p_align) {
ERR_FAIL_COND(current->type == ITEM_TABLE);
ItemAlign *item = memnew(ItemAlign);
item->align = p_align;
_add_item(item, true, true);
}
void RichTextLabel::push_indent(int p_level) {
ERR_FAIL_COND(current->type == ITEM_TABLE);
ERR_FAIL_COND(p_level < 0);
ItemIndent *item = memnew(ItemIndent);
item->level = p_level;
_add_item(item, true, true);
}
void RichTextLabel::push_list(ListType p_list) {
ERR_FAIL_COND(current->type == ITEM_TABLE);
ERR_FAIL_INDEX(p_list, 3);
ItemList *item = memnew(ItemList);
item->list_type = p_list;
_add_item(item, true, true);
}
void RichTextLabel::push_meta(const Variant &p_meta) {
ERR_FAIL_COND(current->type == ITEM_TABLE);
ItemMeta *item = memnew(ItemMeta);
item->meta = p_meta;
_add_item(item, true);
}
void RichTextLabel::push_table(int p_columns) {
ERR_FAIL_COND(p_columns < 1);
ItemTable *item = memnew(ItemTable);
item->columns.resize(p_columns);
item->total_width = 0;
for (int i = 0; i < item->columns.size(); i++) {
item->columns[i].expand = false;
item->columns[i].expand_ratio = 1;
}
_add_item(item, true, true);
}
void RichTextLabel::set_table_column_expand(int p_column, bool p_expand, int p_ratio) {
ERR_FAIL_COND(current->type != ITEM_TABLE);
ItemTable *table = static_cast<ItemTable *>(current);
ERR_FAIL_INDEX(p_column, table->columns.size());
table->columns[p_column].expand = p_expand;
table->columns[p_column].expand_ratio = p_ratio;
}
void RichTextLabel::push_cell() {
ERR_FAIL_COND(current->type != ITEM_TABLE);
ItemFrame *item = memnew(ItemFrame);
item->parent_frame = current_frame;
_add_item(item, true);
current_frame = item;
item->cell = true;
item->parent_line = item->parent_frame->lines.size() - 1;
item->lines.resize(1);
item->lines[0].from = NULL;
item->first_invalid_line = 0;
}
int RichTextLabel::get_current_table_column() const {
ERR_FAIL_COND_V(current->type != ITEM_TABLE, -1);
ItemTable *table = static_cast<ItemTable *>(current);
return table->subitems.size() % table->columns.size();
}
void RichTextLabel::pop() {
ERR_FAIL_COND(!current->parent);
if (current->type == ITEM_FRAME) {
current_frame = static_cast<ItemFrame *>(current)->parent_frame;
}
current = current->parent;
}
void RichTextLabel::clear() {
main->_clear_children();
current = main;
current_frame = main;
main->lines.clear();
main->lines.resize(1);
main->first_invalid_line = 0;
update();
selection.click = NULL;
selection.active = false;
current_idx = 1;
}
void RichTextLabel::set_tab_size(int p_spaces) {
tab_size = p_spaces;
main->first_invalid_line = 0;
update();
}
int RichTextLabel::get_tab_size() const {
return tab_size;
}
void RichTextLabel::set_meta_underline(bool p_underline) {
underline_meta = p_underline;
update();
}
bool RichTextLabel::is_meta_underlined() const {
return underline_meta;
}
void RichTextLabel::set_override_selected_font_color(bool p_override_selected_font_color) {
override_selected_font_color = p_override_selected_font_color;
}
bool RichTextLabel::is_overriding_selected_font_color() const {
return override_selected_font_color;
}
void RichTextLabel::set_offset(int p_pixel) {
vscroll->set_value(p_pixel);
}
void RichTextLabel::set_scroll_active(bool p_active) {
if (scroll_active == p_active)
return;
scroll_active = p_active;
update();
}
bool RichTextLabel::is_scroll_active() const {
return scroll_active;
}
void RichTextLabel::set_scroll_follow(bool p_follow) {
scroll_follow = p_follow;
if (!vscroll->is_visible_in_tree() || vscroll->get_value() >= (vscroll->get_max() - vscroll->get_page()))
scroll_following = true;
}
bool RichTextLabel::is_scroll_following() const {
return scroll_follow;
}
Error RichTextLabel::parse_bbcode(const String &p_bbcode) {
clear();
return append_bbcode(p_bbcode);
}
Error RichTextLabel::append_bbcode(const String &p_bbcode) {
int pos = 0;
List<String> tag_stack;
Ref<Font> normal_font = get_font("normal_font");
Ref<Font> bold_font = get_font("bold_font");
Ref<Font> italics_font = get_font("italics_font");
Ref<Font> bold_italics_font = get_font("bold_italics_font");
Ref<Font> mono_font = get_font("mono_font");
Color base_color = get_color("default_color");
int indent_level = 0;
bool in_bold = false;
bool in_italics = false;
while (pos < p_bbcode.length()) {
int brk_pos = p_bbcode.find("[", pos);
if (brk_pos < 0)
brk_pos = p_bbcode.length();
if (brk_pos > pos) {
add_text(p_bbcode.substr(pos, brk_pos - pos));
}
if (brk_pos == p_bbcode.length())
break; //nothing else o add
int brk_end = p_bbcode.find("]", brk_pos + 1);
if (brk_end == -1) {
//no close, add the rest
add_text(p_bbcode.substr(brk_pos, p_bbcode.length() - brk_pos));
break;
}
String tag = p_bbcode.substr(brk_pos + 1, brk_end - brk_pos - 1);
if (tag.begins_with("/") && tag_stack.size()) {
bool tag_ok = tag_stack.size() && tag_stack.front()->get() == tag.substr(1, tag.length());
if (tag_stack.front()->get() == "b")
in_bold = false;
if (tag_stack.front()->get() == "i")
in_italics = false;
if (tag_stack.front()->get() == "indent")
indent_level--;
if (!tag_ok) {
add_text("[");
pos++;
continue;
}
tag_stack.pop_front();
pos = brk_end + 1;
if (tag != "/img")
pop();
} else if (tag == "b") {
//use bold font
in_bold = true;
if (in_italics)
push_font(bold_italics_font);
else
push_font(bold_font);
pos = brk_end + 1;
tag_stack.push_front(tag);
} else if (tag == "i") {
//use italics font
in_italics = true;
if (in_bold)
push_font(bold_italics_font);
else
push_font(italics_font);
pos = brk_end + 1;
tag_stack.push_front(tag);
} else if (tag == "code") {
//use monospace font
push_font(mono_font);
pos = brk_end + 1;
tag_stack.push_front(tag);
} else if (tag.begins_with("table=")) {
int columns = tag.substr(6, tag.length()).to_int();
if (columns < 1)
columns = 1;
//use monospace font
push_table(columns);
pos = brk_end + 1;
tag_stack.push_front("table");
} else if (tag == "cell") {
push_cell();
pos = brk_end + 1;
tag_stack.push_front(tag);
} else if (tag.begins_with("cell=")) {
int ratio = tag.substr(5, tag.length()).to_int();
if (ratio < 1)
ratio = 1;
//use monospace font
set_table_column_expand(get_current_table_column(), true, ratio);
push_cell();
pos = brk_end + 1;
tag_stack.push_front("cell");
} else if (tag == "u") {
//use underline
push_underline();
pos = brk_end + 1;
tag_stack.push_front(tag);
} else if (tag == "s") {
//use strikethrough (not supported underline instead)
push_underline();
pos = brk_end + 1;
tag_stack.push_front(tag);
} else if (tag == "center") {
//use underline
push_align(ALIGN_CENTER);
pos = brk_end + 1;
tag_stack.push_front(tag);
} else if (tag == "fill") {
//use underline
push_align(ALIGN_FILL);
pos = brk_end + 1;
tag_stack.push_front(tag);
} else if (tag == "right") {
//use underline
push_align(ALIGN_RIGHT);
pos = brk_end + 1;
tag_stack.push_front(tag);
} else if (tag == "ul") {
//use underline
push_list(LIST_DOTS);
pos = brk_end + 1;
tag_stack.push_front(tag);
} else if (tag == "ol") {
//use underline
push_list(LIST_NUMBERS);
pos = brk_end + 1;
tag_stack.push_front(tag);
} else if (tag == "indent") {
//use underline
indent_level++;
push_indent(indent_level);
pos = brk_end + 1;
tag_stack.push_front(tag);
} else if (tag == "url") {
//use strikethrough (not supported underline instead)
int end = p_bbcode.find("[", brk_end);
if (end == -1)
end = p_bbcode.length();
String url = p_bbcode.substr(brk_end + 1, end - brk_end - 1);
push_meta(url);
pos = brk_end + 1;
tag_stack.push_front(tag);
} else if (tag.begins_with("url=")) {
String url = tag.substr(4, tag.length());
push_meta(url);
pos = brk_end + 1;
tag_stack.push_front("url");
} else if (tag == "img") {
//use strikethrough (not supported underline instead)
int end = p_bbcode.find("[", brk_end);
if (end == -1)
end = p_bbcode.length();
String image = p_bbcode.substr(brk_end + 1, end - brk_end - 1);
Ref<Texture> texture = ResourceLoader::load(image, "Texture");
if (texture.is_valid())
add_image(texture);
pos = end;
tag_stack.push_front(tag);
} else if (tag.begins_with("color=")) {
String col = tag.substr(6, tag.length());
Color color;
if (col.begins_with("#"))
color = Color::html(col);
else if (col == "aqua")
color = Color::html("#00FFFF");
else if (col == "black")
color = Color::html("#000000");
else if (col == "blue")
color = Color::html("#0000FF");
else if (col == "fuchsia")
color = Color::html("#FF00FF");
else if (col == "gray" || col == "grey")
color = Color::html("#808080");
else if (col == "green")
color = Color::html("#008000");
else if (col == "lime")
color = Color::html("#00FF00");
else if (col == "maroon")
color = Color::html("#800000");
else if (col == "navy")
color = Color::html("#000080");
else if (col == "olive")
color = Color::html("#808000");
else if (col == "purple")
color = Color::html("#800080");
else if (col == "red")
color = Color::html("#FF0000");
else if (col == "silver")
color = Color::html("#C0C0C0");
else if (col == "teal")
color = Color::html("#008008");
else if (col == "white")
color = Color::html("#FFFFFF");
else if (col == "yellow")
color = Color::html("#FFFF00");
else
color = base_color;
push_color(color);
pos = brk_end + 1;
tag_stack.push_front("color");
} else if (tag.begins_with("font=")) {
String fnt = tag.substr(5, tag.length());
Ref<Font> font = ResourceLoader::load(fnt, "Font");
if (font.is_valid())
push_font(font);
else
push_font(normal_font);
pos = brk_end + 1;
tag_stack.push_front("font");
} else {
add_text("["); //ignore
pos = brk_pos + 1;
}
}
return OK;
}
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].height_accum_cache - main->lines[p_line].height_cache);
}
int RichTextLabel::get_line_count() const {
return current_frame->lines.size();
}
int RichTextLabel::get_visible_line_count() const {
if (!is_visible())
return 0;
return visible_line_count;
}
void RichTextLabel::set_selection_enabled(bool p_enabled) {
selection.enabled = p_enabled;
if (!p_enabled) {
if (selection.active) {
selection.active = false;
update();
}
set_focus_mode(FOCUS_NONE);
} else {
set_focus_mode(FOCUS_ALL);
}
}
bool RichTextLabel::search(const String &p_string, bool p_from_selection) {
ERR_FAIL_COND_V(!selection.enabled, false);
Item *it = main;
int charidx = 0;
if (p_from_selection && selection.active && selection.enabled) {
it = selection.to;
charidx = selection.to_char + 1;
}
while (it) {
if (it->type == ITEM_TEXT) {
ItemText *t = static_cast<ItemText *>(it);
int sp = t->text.find(p_string, charidx);
if (sp != -1) {
selection.from = it;
selection.from_char = sp;
selection.to = it;
selection.to_char = sp + p_string.length() - 1;
selection.active = true;
update();
_validate_line_caches(main);
int fh = _find_font(t).is_valid() ? _find_font(t)->get_height() : get_font("normal_font")->get_height();
float offset = 0;
int line = t->line;
Item *item = t;
while (item) {
if (item->type == ITEM_FRAME) {
ItemFrame *frame = static_cast<ItemFrame *>(item);
if (line >= 0 && line < frame->lines.size()) {
offset += frame->lines[line].height_accum_cache - frame->lines[line].height_cache;
line = frame->line;
}
}
item = item->parent;
}
vscroll->set_value(offset - fh);
return true;
}
}
it = _get_next_item(it, true);
charidx = 0;
}
return false;
}
void RichTextLabel::selection_copy() {
if (!selection.active || !selection.enabled)
return;
String text;
RichTextLabel::Item *item = selection.from;
while (item) {
if (item->type == ITEM_TEXT) {
String itext = static_cast<ItemText *>(item)->text;
if (item == selection.from && item == selection.to) {
text += itext.substr(selection.from_char, selection.to_char - selection.from_char + 1);
} else if (item == selection.from) {
text += itext.substr(selection.from_char, itext.size());
} else if (item == selection.to) {
text += itext.substr(0, selection.to_char + 1);
} else {
text += itext;
}
} else if (item->type == ITEM_NEWLINE) {
text += "\n";
}
if (item == selection.to)
break;
item = _get_next_item(item, true);
}
if (text != "") {
OS::get_singleton()->set_clipboard(text);
//print_line("COPY: "+text);
}
}
bool RichTextLabel::is_selection_enabled() const {
return selection.enabled;
}
void RichTextLabel::set_bbcode(const String &p_bbcode) {
bbcode = p_bbcode;
if (is_inside_tree() && use_bbcode)
parse_bbcode(p_bbcode);
else { // raw text
clear();
add_text(p_bbcode);
}
}
String RichTextLabel::get_bbcode() const {
return bbcode;
}
void RichTextLabel::set_use_bbcode(bool p_enable) {
if (use_bbcode == p_enable)
return;
use_bbcode = p_enable;
set_bbcode(bbcode);
}
bool RichTextLabel::is_using_bbcode() const {
return use_bbcode;
}
String RichTextLabel::get_text() {
String text = "";
Item *it = main;
while (it) {
if (it->type == ITEM_TEXT) {
ItemText *t = static_cast<ItemText *>(it);
text += t->text;
} else if (it->type == ITEM_NEWLINE) {
text += "\n";
} else if (it->type == ITEM_INDENT) {
text += "\t";
}
it = _get_next_item(it, true);
}
return text;
}
void RichTextLabel::set_text(const String &p_string) {
clear();
add_text(p_string);
}
void RichTextLabel::set_percent_visible(float p_percent) {
if (p_percent < 0 || p_percent >= 1) {
visible_characters = -1;
percent_visible = 1;
} else {
visible_characters = get_total_character_count() * p_percent;
percent_visible = p_percent;
}
update();
}
float RichTextLabel::get_percent_visible() const {
return percent_visible;
}
void RichTextLabel::_bind_methods() {
ClassDB::bind_method(D_METHOD("_gui_input"), &RichTextLabel::_gui_input);
ClassDB::bind_method(D_METHOD("_scroll_changed"), &RichTextLabel::_scroll_changed);
ClassDB::bind_method(D_METHOD("get_text"), &RichTextLabel::get_text);
ClassDB::bind_method(D_METHOD("add_text", "text"), &RichTextLabel::add_text);
ClassDB::bind_method(D_METHOD("set_text", "text"), &RichTextLabel::set_text);
ClassDB::bind_method(D_METHOD("add_image", "image"), &RichTextLabel::add_image);
ClassDB::bind_method(D_METHOD("newline"), &RichTextLabel::add_newline);
ClassDB::bind_method(D_METHOD("remove_line", "line"), &RichTextLabel::remove_line);
ClassDB::bind_method(D_METHOD("push_font", "font"), &RichTextLabel::push_font);
ClassDB::bind_method(D_METHOD("push_color", "color"), &RichTextLabel::push_color);
ClassDB::bind_method(D_METHOD("push_align", "align"), &RichTextLabel::push_align);
ClassDB::bind_method(D_METHOD("push_indent", "level"), &RichTextLabel::push_indent);
ClassDB::bind_method(D_METHOD("push_list", "type"), &RichTextLabel::push_list);
ClassDB::bind_method(D_METHOD("push_meta", "data"), &RichTextLabel::push_meta);
ClassDB::bind_method(D_METHOD("push_underline"), &RichTextLabel::push_underline);
ClassDB::bind_method(D_METHOD("push_table", "columns"), &RichTextLabel::push_table);
ClassDB::bind_method(D_METHOD("set_table_column_expand", "column", "expand", "ratio"), &RichTextLabel::set_table_column_expand);
ClassDB::bind_method(D_METHOD("push_cell"), &RichTextLabel::push_cell);
ClassDB::bind_method(D_METHOD("pop"), &RichTextLabel::pop);
ClassDB::bind_method(D_METHOD("clear"), &RichTextLabel::clear);
ClassDB::bind_method(D_METHOD("set_meta_underline", "enable"), &RichTextLabel::set_meta_underline);
ClassDB::bind_method(D_METHOD("is_meta_underlined"), &RichTextLabel::is_meta_underlined);
ClassDB::bind_method(D_METHOD("set_override_selected_font_color", "override"), &RichTextLabel::set_override_selected_font_color);
ClassDB::bind_method(D_METHOD("is_overriding_selected_font_color"), &RichTextLabel::is_overriding_selected_font_color);
ClassDB::bind_method(D_METHOD("set_scroll_active", "active"), &RichTextLabel::set_scroll_active);
ClassDB::bind_method(D_METHOD("is_scroll_active"), &RichTextLabel::is_scroll_active);
ClassDB::bind_method(D_METHOD("set_scroll_follow", "follow"), &RichTextLabel::set_scroll_follow);
ClassDB::bind_method(D_METHOD("is_scroll_following"), &RichTextLabel::is_scroll_following);
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("set_tab_size", "spaces"), &RichTextLabel::set_tab_size);
ClassDB::bind_method(D_METHOD("get_tab_size"), &RichTextLabel::get_tab_size);
ClassDB::bind_method(D_METHOD("set_selection_enabled", "enabled"), &RichTextLabel::set_selection_enabled);
ClassDB::bind_method(D_METHOD("is_selection_enabled"), &RichTextLabel::is_selection_enabled);
ClassDB::bind_method(D_METHOD("parse_bbcode", "bbcode"), &RichTextLabel::parse_bbcode);
ClassDB::bind_method(D_METHOD("append_bbcode", "bbcode"), &RichTextLabel::append_bbcode);
ClassDB::bind_method(D_METHOD("set_bbcode", "text"), &RichTextLabel::set_bbcode);
ClassDB::bind_method(D_METHOD("get_bbcode"), &RichTextLabel::get_bbcode);
ClassDB::bind_method(D_METHOD("set_visible_characters", "amount"), &RichTextLabel::set_visible_characters);
ClassDB::bind_method(D_METHOD("get_visible_characters"), &RichTextLabel::get_visible_characters);
ClassDB::bind_method(D_METHOD("set_percent_visible", "percent_visible"), &RichTextLabel::set_percent_visible);
ClassDB::bind_method(D_METHOD("get_percent_visible"), &RichTextLabel::get_percent_visible);
ClassDB::bind_method(D_METHOD("get_total_character_count"), &RichTextLabel::get_total_character_count);
ClassDB::bind_method(D_METHOD("set_use_bbcode", "enable"), &RichTextLabel::set_use_bbcode);
ClassDB::bind_method(D_METHOD("is_using_bbcode"), &RichTextLabel::is_using_bbcode);
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);
ADD_GROUP("BBCode", "bbcode_");
ADD_PROPERTY(PropertyInfo(Variant::BOOL, "bbcode_enabled"), "set_use_bbcode", "is_using_bbcode");
ADD_PROPERTY(PropertyInfo(Variant::STRING, "bbcode_text", PROPERTY_HINT_MULTILINE_TEXT), "set_bbcode", "get_bbcode");
ADD_PROPERTY(PropertyInfo(Variant::INT, "visible_characters", PROPERTY_HINT_RANGE, "-1,128000,1"), "set_visible_characters", "get_visible_characters");
ADD_PROPERTY(PropertyInfo(Variant::REAL, "percent_visible", PROPERTY_HINT_RANGE, "0,1,0.001"), "set_percent_visible", "get_percent_visible");
ADD_PROPERTY(PropertyInfo(Variant::BOOL, "meta_underlined"), "set_meta_underline", "is_meta_underlined");
ADD_PROPERTY(PropertyInfo(Variant::INT, "tab_size", PROPERTY_HINT_RANGE, "0,24,1"), "set_tab_size", "get_tab_size");
ADD_PROPERTY(PropertyInfo(Variant::STRING, "text"), "set_text", "get_text");
ADD_PROPERTY(PropertyInfo(Variant::BOOL, "scroll_active"), "set_scroll_active", "is_scroll_active");
ADD_PROPERTY(PropertyInfo(Variant::BOOL, "scroll_following"), "set_scroll_follow", "is_scroll_following");
ADD_PROPERTY(PropertyInfo(Variant::BOOL, "selection_enabled"), "set_selection_enabled", "is_selection_enabled");
ADD_PROPERTY(PropertyInfo(Variant::BOOL, "override_selected_font_color"), "set_override_selected_font_color", "is_overriding_selected_font_color");
ADD_SIGNAL(MethodInfo("meta_clicked", PropertyInfo(Variant::NIL, "meta", PROPERTY_HINT_NONE, "", PROPERTY_USAGE_NIL_IS_VARIANT)));
ADD_SIGNAL(MethodInfo("meta_hover_started", PropertyInfo(Variant::NIL, "meta", PROPERTY_HINT_NONE, "", PROPERTY_USAGE_NIL_IS_VARIANT)));
ADD_SIGNAL(MethodInfo("meta_hover_ended", PropertyInfo(Variant::NIL, "meta", PROPERTY_HINT_NONE, "", PROPERTY_USAGE_NIL_IS_VARIANT)));
BIND_ENUM_CONSTANT(ALIGN_LEFT);
BIND_ENUM_CONSTANT(ALIGN_CENTER);
BIND_ENUM_CONSTANT(ALIGN_RIGHT);
BIND_ENUM_CONSTANT(ALIGN_FILL);
BIND_ENUM_CONSTANT(LIST_NUMBERS);
BIND_ENUM_CONSTANT(LIST_LETTERS);
BIND_ENUM_CONSTANT(LIST_DOTS);
BIND_ENUM_CONSTANT(ITEM_FRAME);
BIND_ENUM_CONSTANT(ITEM_TEXT);
BIND_ENUM_CONSTANT(ITEM_IMAGE);
BIND_ENUM_CONSTANT(ITEM_NEWLINE);
BIND_ENUM_CONSTANT(ITEM_FONT);
BIND_ENUM_CONSTANT(ITEM_COLOR);
BIND_ENUM_CONSTANT(ITEM_UNDERLINE);
BIND_ENUM_CONSTANT(ITEM_ALIGN);
BIND_ENUM_CONSTANT(ITEM_INDENT);
BIND_ENUM_CONSTANT(ITEM_LIST);
BIND_ENUM_CONSTANT(ITEM_TABLE);
BIND_ENUM_CONSTANT(ITEM_META);
}
void RichTextLabel::set_visible_characters(int p_visible) {
visible_characters = p_visible;
update();
}
int RichTextLabel::get_visible_characters() const {
return visible_characters;
}
int RichTextLabel::get_total_character_count() const {
int tc = 0;
for (int i = 0; i < current_frame->lines.size(); i++)
tc += current_frame->lines[i].char_count;
return tc;
}
RichTextLabel::RichTextLabel() {
main = memnew(ItemFrame);
main->index = 0;
current = main;
main->lines.resize(1);
main->lines[0].from = main;
main->first_invalid_line = 0;
current_frame = main;
tab_size = 4;
default_align = ALIGN_LEFT;
underline_meta = true;
override_selected_font_color = false;
scroll_visible = false;
scroll_follow = false;
scroll_following = false;
updating_scroll = false;
scroll_active = true;
scroll_w = 0;
vscroll = memnew(VScrollBar);
add_child(vscroll);
vscroll->set_drag_slave(String(".."));
vscroll->set_step(1);
vscroll->set_anchor_and_margin(MARGIN_TOP, ANCHOR_BEGIN, 0);
vscroll->set_anchor_and_margin(MARGIN_BOTTOM, ANCHOR_END, 0);
vscroll->set_anchor_and_margin(MARGIN_RIGHT, ANCHOR_END, 0);
vscroll->connect("value_changed", this, "_scroll_changed");
vscroll->set_step(1);
vscroll->hide();
current_idx = 1;
use_bbcode = false;
selection.click = NULL;
selection.active = false;
selection.enabled = false;
visible_characters = -1;
percent_visible = 1;
visible_line_count = 0;
set_clip_contents(true);
}
RichTextLabel::~RichTextLabel() {
memdelete(main);
}
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