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- #include <config.h>
- #include "editbox.h"
- #include "transtbl.h"
- #include "univalues.h"
- #include "mk_wcwidth.h"
- #include "my_wctob.h"
- #include "shaping.h"
- #include "themes.h"
- #include "dbg.h"
- #define FAILED_CONV_REPR '?'
- #define CONTROL_REPR '^'
- #define NSM_REPR '\''
- #define WIDE_REPR 'A'
- #define TRIM_REPR '$'
- #define WRAP_RTL_REPR '/'
- #define WRAP_LTR_REPR '\\'
- #define EOP_UNICODE_REPR 0xB6
- #define EOP_DOS_REPR 0xB5
- #define EOP_UNIX_LTR_REPR 0xAB
- #define EOP_UNIX_RTL_REPR 0xBB
- #define EOP_MAC_REPR '@'
- #define EOP_NONE_REPR 0xAC
- static bool do_mirror = true;
- void EditBox::set_formatting_marks(bool value)
- {
- show_paragraph_endings = value;
- show_explicits = value;
- show_tabs = value;
- rewrap_all();
- NOTIFY_CHANGE(formatting_marks);
- }
- INTERACTIVE void EditBox::toggle_formatting_marks()
- {
- set_formatting_marks(!has_formatting_marks());
- }
- void EditBox::set_maqaf_display(maqaf_display_t disp)
- {
- maqaf_display = disp;
- request_update(rgnAll);
- NOTIFY_CHANGE(maqaf);
- }
- INTERACTIVE void EditBox::toggle_maqaf()
- {
- switch (maqaf_display) {
- case mqfAsis: set_maqaf_display(mqfTransliterated); break;
- case mqfTransliterated: set_maqaf_display(mqfHighlighted); break;
- case mqfHighlighted: set_maqaf_display(mqfAsis); break;
- }
- }
- bool EditBox::set_rtl_nsm_display(rtl_nsm_display_t disp)
- {
- if (disp == rtlnsmAsis && (!terminal::is_utf8 || terminal::is_fixed)) {
- NOTIFY_ERROR(cant_display_nsm);
- return false;
- }
- rtl_nsm_display = disp;
- rewrap_all();
- NOTIFY_CHANGE(rtl_nsm);
- return true;
- }
- INTERACTIVE void EditBox::toggle_rtl_nsm()
- {
- switch (rtl_nsm_display) {
- case rtlnsmOff:
- set_rtl_nsm_display(rtlnsmTransliterated);
- break;
- case rtlnsmTransliterated:
- if (set_rtl_nsm_display(rtlnsmAsis))
- break;
-
- case rtlnsmAsis:
- set_rtl_nsm_display(rtlnsmOff);
- break;
- }
- }
- void EditBox::enable_bidi(bool value)
- {
- bidi_enabled = value;
- cache.invalidate();
- invalidate_optimal_vis_column();
- request_update(rgnAll);
- }
- INTERACTIVE void EditBox::toggle_bidi()
- {
- enable_bidi(!is_bidi_enabled());
- }
- void EditBox::request_update(region rgn)
- {
- update_region |= rgn;
- }
- void EditBox::request_update(int from, int to)
- {
- if (update_region & rgnRange) {
-
-
- update_region = rgnAll;
- } else {
- update_region |= rgnRange;
- update_from = from;
- update_to = to;
- }
- }
- void EditBox::update()
- {
- if (update_region == rgnNone)
- return;
- static int last_cursor_para = -1;
- if (is_primary_mark_set()) {
-
-
-
-
-
-
- if (last_cursor_para == cursor.para) {
-
-
- update_region |= rgnCurrent;
- } else {
- update_region = rgnAll;
- }
- last_cursor_para = cursor.para;
- }
- if (wrap_type == wrpOff && update_region == rgnCursor) {
-
-
-
-
- update_region = rgnCurrent;
- }
-
- if (update_region & rgnAll) {
- wbkgd(wnd, get_attr(EDIT_ATTR));
- werase(wnd);
-
-
- cache.invalidate();
- }
- int window_line = -top_line.inner_line;
- int curr_para_line = 0;
-
- for (int i = top_line.para;
- i < parags_count()
- && window_line < window_height();
- i++) {
- Paragraph *para = paragraphs[i];
- if (para == curr_para()) {
-
-
-
- curr_para_line = window_line;
- if (update_region != rgnCursor) {
-
- for (int k = window_line;
- k < window_line + para->breaks_count()
- && k < window_height();
- k++) {
- wmove(wnd, k, 0);
- wclrtoeol(wnd);
- }
- }
- }
- else if ((update_region & rgnAll)
- || ((update_region & rgnRange)
- && i >= update_from && i <= update_to)) {
- redraw_paragraph(*para, window_line, false, i);
- }
- window_line += para->breaks_count();
- }
-
- bool only_cursor = (update_region == rgnCursor);
- redraw_paragraph(*curr_para(), curr_para_line, only_cursor, cursor.para);
- wnoutrefresh(wnd);
- update_region = rgnNone;
- }
- template <class VAL, class IDX>
- inline void reverse(VAL *array, IDX len)
- {
- if (len == 0)
- return;
- for (IDX start = 0, end = len - 1; start < end; start++, end--) {
- VAL tmp = array[start];
- array[start] = array[end];
- array[end] = tmp;
- }
- }
- static void reorder(level_t *levels, idx_t len,
- idx_t *position_V_to_L, idx_t *position_L_to_V,
- unichar *str,
- attribute_t *attributes = NULL,
- bool mirror = false,
- bool reorder_nsm = false)
- {
-
-
-
- EditBox::IdxArray internal_position_V_to_L;
- if (position_L_to_V && !position_V_to_L) {
- internal_position_V_to_L.resize(len);
- position_V_to_L = internal_position_V_to_L.begin();
- }
-
- if (position_V_to_L) {
- for (idx_t i = 0; i < len; i++)
- position_V_to_L[i] = i;
- }
- level_t highest_level = 0;
- level_t lowest_odd_level = 63;
- for (idx_t i = 0; i < len; i++) {
- level_t level = levels[i];
- if (level > highest_level)
- highest_level = level;
- if ((level & 1) && level < lowest_odd_level)
- lowest_odd_level = level;
- }
-
- for (level_t level = highest_level; level >= lowest_odd_level; level--)
- for (idx_t i = 0; i < len; i++)
- if (levels[i] >= level) {
- idx_t start = i;
- while (i < len && levels[i] >= level)
- i++;
- if (position_V_to_L)
- reverse(position_V_to_L + start, i - start);
- reverse(levels + start, i - start);
- if (str)
- reverse(str + start, i - start);
- if (attributes)
- reverse(attributes + start, i - start);
- }
-
-
- if (str && (mirror || reorder_nsm)) {
- for (idx_t i = 0; i < len; i++) {
- if (levels[i] & 1) {
- BiDi::mirror_char(&str[i]);
-
-
-
- if (reorder_nsm
- && BiDi::is_nsm(str[i]))
- {
- idx_t start = i++;
- while (i < len && BiDi::is_nsm(str[i]))
- i++;
- if (i < len)
- i++;
-
-
-
- reverse(str + start, i - start);
-
-
- if (i < len)
- i--;
- }
- }
- }
- }
- if (position_L_to_V) {
- for (idx_t i = 0; i < len; i++)
- position_L_to_V[position_V_to_L[i]] = i;
- }
- }
- #define IS_SIMPLE_ONE_COLUMN_CHAR(ch) \
- ((ch >= 32 && ch <= 126) \
- || (ch >= UNI_HEB_ALEF && ch <= UNI_HEB_TAV))
- int EditBox::get_char_width(unichar ch, int pos, wdstate *stt, bool visual)
- {
- #define LAM_N 0x0644
- #define IS_LAM_N(c) ((c) == LAM_N)
- #define ALEF_MADDA_N 0x0622
- #define ALEF_HAMZA_ABOVE_N 0x0623
- #define ALEF_HAMZA_BELOW_N 0x0625
- #define ALEF_N 0x0627
- #define IS_ALEF_N(c) ((c) == ALEF_MADDA_N \
- || (c) == ALEF_HAMZA_ABOVE_N \
- || (c) == ALEF_HAMZA_BELOW_N \
- || (c) == ALEF_N)
-
- if (IS_SIMPLE_ONE_COLUMN_CHAR(ch) && !(stt && stt->may_start_lam_alef))
- return 1;
-
- int width = mk_wcwidth(ch);
-
- if (terminal::do_arabic_shaping && stt) {
- if (visual ? IS_ALEF_N(ch) : IS_LAM_N(ch)) {
- stt->may_start_lam_alef = true;
- } else {
- if (stt->may_start_lam_alef
- && (visual ? IS_LAM_N(ch) : IS_ALEF_N(ch))) {
-
-
-
- stt->may_start_lam_alef = false;
- return 0;
- } else {
- if (width != 0 || !is_shaping_transparent(ch))
- stt->may_start_lam_alef = false;
- }
- }
- }
- if (width != 1) {
- if (ch == '\t') {
- return (tab_width - (pos % tab_width));
- } else if (width == -1 || ch == '\0') {
-
-
- width = 1;
- } else if (width == 0) {
-
-
- if (BiDi::is_explicit_mark(ch)) {
- if (show_explicits)
- width = 1;
- } else if (BiDi::is_hebrew_nsm(ch) || BiDi::is_arabic_nsm(ch)) {
- if (rtl_nsm_display == rtlnsmTransliterated)
- width = 1;
- } else {
-
-
-
- if (!terminal::is_utf8 || terminal::is_fixed)
- width = 1;
- }
- } else {
-
- if (!terminal::is_utf8 || terminal::is_fixed)
- width = 1;
- }
- }
- return width;
- }
- int EditBox::get_str_width(const unichar *str, idx_t len, bool visual)
- {
- wdstate stt;
- int width = 0;
- while (len--)
- width += get_char_width(*str++, width, &stt, true);
- return width;
- }
- int EditBox::get_rev_str_width(const unichar *str, idx_t len)
- {
- wdstate stt;
- int width = 0;
- str += len;
- while (len--)
- width += get_char_width(*(--str), width, &stt);
- return width;
- }
- int EditBox::calc_vis_column()
- {
- Paragraph &p = *curr_para();
-
- int inner_line = calc_inner_line();
- idx_t start = (inner_line > 0)
- ? p.line_breaks[inner_line - 1]
- : 0;
- idx_t end = p.line_breaks[inner_line];
- idx_t line_len = end - start;
- LevelsArray &levels = cache.levels;
- IdxArray &position_L_to_V = cache.position_L_to_V;
- unistring &vis = cache.vis;
-
-
- if (!cache.owned_by(cursor.para)) {
- cache.invalidate();
- levels.resize(p.str.len());
- DBG(100, ("get_embedding_levels() - by calc_vis_column()\n"));
- BiDi::get_embedding_levels(p.str.begin(), p.str.len(),
- p.base_dir(), levels.begin(),
- p.breaks_count(), p.line_breaks.begin(),
- !bidi_enabled);
- vis = p.str;
- position_L_to_V.resize(p.str.len());
-
- reorder(levels.begin() + start, line_len,
- NULL, position_L_to_V.begin() + start, vis.begin() + start);
- }
- int cursor_log_line_pos = cursor.pos - start;
-
-
-
- int cursor_vis_width = 0;
-
- if (cursor_log_line_pos >= line_len) {
-
-
- if (p.is_rtl())
- cursor_vis_width = get_rev_str_width(vis.begin() + start,
- line_len);
- else
- cursor_vis_width = get_str_width(vis.begin() + start,
- line_len);
- }
- else {
-
-
- int cursor_vis_line_pos = position_L_to_V[start + cursor_log_line_pos];
- if (p.is_rtl())
- cursor_vis_width = get_rev_str_width(
- vis.begin() + start + cursor_vis_line_pos + 1,
- line_len - cursor_vis_line_pos - 1);
- else
- cursor_vis_width = get_str_width(
- vis.begin() + start,
- cursor_vis_line_pos);
- }
- return cursor_vis_width;
- }
- void EditBox::move_to_vis_column(int column)
- {
- Paragraph &p = *curr_para();
-
- int inner_line = calc_inner_line();
- idx_t start = (inner_line > 0)
- ? p.line_breaks[inner_line - 1]
- : 0;
- idx_t end = p.line_breaks[inner_line];
- idx_t line_len = end - start;
- LevelsArray &levels = cache.levels;
- IdxArray &position_V_to_L = cache.position_V_to_L;
- unistring &vis = cache.vis;
-
-
- if (!cache.owned_by(cursor.para)) {
- cache.invalidate();
- levels.resize(p.str.len());
- DBG(100, ("get_embedding_levels() - by move_to_vis_column()\n"));
- BiDi::get_embedding_levels(p.str.begin(), p.str.len(),
- p.base_dir(), levels.begin(),
- p.breaks_count(), p.line_breaks.begin(),
- !bidi_enabled);
- vis = p.str;
- position_V_to_L.resize(p.str.len());
-
- reorder(levels.begin() + start, line_len,
- position_V_to_L.begin() + start, NULL, vis.begin() + start);
- }
- if (p.is_rtl()) {
-
-
- reverse(vis.begin() + start, line_len);
- }
-
-
-
- int cursor_vis_line_pos = 0;
- int width = 0;
- idx_t i;
- wdstate stt;
- for (i = 0; i < line_len; i++) {
- width += get_char_width(vis[start + i], width, &stt, !p.is_rtl());
- if (width > column) {
- cursor_vis_line_pos = i;
- break;
- }
- }
-
- if (p.is_rtl()) {
-
- reverse(vis.begin() + start, line_len);
- }
-
- int cursor_log_line_pos;
- if (i == line_len) {
- if (inner_line == p.breaks_count() - 1) {
-
- cursor_log_line_pos = cursor_vis_line_pos = line_len;
- } else {
-
- cursor_log_line_pos = cursor_vis_line_pos = line_len - 1;
- }
- } else {
-
- if (p.is_rtl()) {
- cursor_vis_line_pos = line_len - cursor_vis_line_pos - 1;
- cursor_log_line_pos = position_V_to_L[start + cursor_vis_line_pos];
- } else {
- cursor_log_line_pos = position_V_to_L[start + cursor_vis_line_pos];
- }
- }
- cursor.pos = start + cursor_log_line_pos;
- }
- int EditBox::get_text_width() const
- {
- if (!terminal::is_interactive())
- return non_interactive_text_width;
- else
- return window_width() - margin_before - margin_after;
- }
- void EditBox::wrap_para(Paragraph ¶)
- {
- para.line_breaks.clear();
-
- if (wrap_type == wrpOff) {
- para.line_breaks.push_back(para.str.len());
- return;
- }
-
- int visible_text_width = get_text_width();
- int line_width = 0;
- idx_t line_len = 0;
- wdstate stt;
- for (idx_t i = 0; i < para.str.len(); i++) {
- int char_width = get_char_width(para.str[i], line_width, &stt);
- if ( (line_width + char_width > visible_text_width && line_len > 0)
- || para.str[i] == UNICODE_LS )
- {
- if (para.str[i] == UNICODE_LS) {
- ;
- } else if (wrap_type == wrpAtWhiteSpace) {
-
- idx_t saved_i = i;
- while (line_len > 0
- && (!BiDi::is_space(para.str[i])
- || i == para.str.len() - 1)) {
- i--;
- line_len--;
- }
- if (line_len == 0) {
-
- i = saved_i - 1;
- }
- } else {
- i--;
- }
- para.line_breaks.push_back(i + 1);
- line_len = 0;
- line_width = 0;
- stt.clear();
- } else {
- line_len++;
- line_width += char_width;
- }
- }
-
-
-
- if (para.line_breaks.empty() || para.line_breaks.back() != para.str.len())
- para.line_breaks.push_back(para.str.len());
- }
- void EditBox::rewrap_all()
- {
- for (int i = 0; i < parags_count(); i++)
- wrap_para(*paragraphs[i]);
- if (wrap_type == wrpOff) {
-
- top_line.inner_line = 0;
- }
- scroll_to_cursor_line();
- request_update(rgnAll);
- }
- void EditBox::reformat()
- {
- rewrap_all();
- }
- void EditBox::set_wrap_type(WrapType value)
- {
- wrap_type = value;
- rewrap_all();
- NOTIFY_CHANGE(wrap);
- }
- INTERACTIVE void EditBox::toggle_wrap()
- {
- switch (wrap_type) {
- case wrpOff: set_wrap_type(wrpAtWhiteSpace); break;
- case wrpAtWhiteSpace: set_wrap_type(wrpAnywhere); break;
- case wrpAnywhere: set_wrap_type(wrpOff); break;
- }
- }
- void EditBox::set_tab_width(int value)
- {
- if (value > 0) {
- tab_width = value;
- rewrap_all();
- }
- }
- void EditBox::resize(int lines, int columns, int y, int x)
- {
- Widget::resize(lines, columns, y, x);
- if (old_width != columns) {
- rewrap_all();
- } else {
-
- scroll_to_cursor_line();
- request_update(rgnAll);
- }
- old_width = columns;
- }
- void EditBox::set_syn_hlt(syn_hlt_t syn)
- {
- syn_hlt = syn;
- request_update(rgnAll);
- }
- INTERACTIVE void EditBox::menu_set_syn_hlt_none()
- {
- set_syn_hlt(synhltOff);
- }
- INTERACTIVE void EditBox::menu_set_syn_hlt_html()
- {
- set_syn_hlt(synhltHTML);
- }
- INTERACTIVE void EditBox::menu_set_syn_hlt_email()
- {
- set_syn_hlt(synhltEmail);
- }
- void EditBox::set_underline(bool v)
- {
- underline_hlt = v;
- request_update(rgnAll);
- }
- INTERACTIVE void EditBox::toggle_underline()
- {
- set_underline(!get_underline());
- }
- void EditBox::detect_syntax()
- {
- syn_hlt_t syntax = synhltOff;
- int quote_count = 0;
- for (int i = 0; i < 10 && i < parags_count(); i++) {
- const unistring &str = paragraphs[i]->str;
- idx_t len = str.len();
- idx_t pos = 0;
- while (pos < len && str[pos] == ' ')
- pos++;
- if (pos < len && str[pos] == '>')
- quote_count++;
- }
- if (quote_count >= 2) {
- syntax = synhltEmail;
- } else {
- for (int i = 0; i < 5 && i < parags_count(); i++) {
- if ((paragraphs[i]->str.index(u8string("<html")) != -1) ||
- (paragraphs[i]->str.index(u8string("<HTML")) != -1))
- {
- syntax = synhltHTML;
- break;
- }
- }
- }
- set_syn_hlt(syntax);
- }
- static void highlight_html(const unistring &str, EditBox::AttributeArray& attributes)
- {
- idx_t len = str.len();
- attribute_t html_attr = get_attr(EDIT_HTML_TAG_ATTR);
- bool is_color = contains_color(html_attr);
- bool in_tag = false;
- for (idx_t pos = 0; pos < len; pos++) {
- if (str[pos] == '<')
- in_tag = true;
- if (in_tag) {
- if (is_color)
- attributes[pos] = html_attr;
- else
- attributes[pos] |= html_attr;
- }
- if (str[pos] == '>')
- in_tag = false;
- }
- }
- #define MAX_QUOTE_LEVEL 9
- static void highlight_email(const unistring &str, EditBox::AttributeArray& attributes)
- {
- idx_t len = str.len();
- attribute_t quote_attr = A_NORMAL;
- bool is_color = false;
- idx_t pos = 0;
- int level = 0;
- while (pos < len && str[pos] == ' ')
- pos++;
- if (pos < len && str[pos] == '>')
- while (pos < len) {
- if (str[pos] == '>' && level < MAX_QUOTE_LEVEL) {
- level++;
- quote_attr = get_attr(EDIT_EMAIL_QUOTE1_ATTR + level - 1);
- is_color = contains_color(quote_attr);
- }
- if (is_color)
- attributes[pos] = quote_attr;
- else
- attributes[pos] |= quote_attr;
- pos++;
- }
- }
- inline bool is_ltr_alpha(unichar ch)
- {
- return BiDi::is_alnum(ch) && !BiDi::is_rtl(ch);
- }
- static void highlight_underline(const unistring &str, EditBox::AttributeArray& attributes)
- {
- idx_t len = str.len();
- attribute_t underline_attr = get_attr(EDIT_EMPHASIZED_ATTR);
- bool is_color = contains_color(underline_attr);
- bool in_emph = false;
- for (idx_t pos = 0; pos < len; pos++) {
- bool emph_ch = (str[pos] == '_' || str[pos] == '*');
- if (emph_ch) {
-
-
- if (pos > 0 && is_ltr_alpha(str[pos-1]) &&
- pos < len-1 && is_ltr_alpha(str[pos+1]))
- emph_ch = false;
- }
- if (emph_ch)
- in_emph = !in_emph;
- if (in_emph || emph_ch) {
- if (is_color)
- attributes[pos] = underline_attr;
- else
- attributes[pos] |= underline_attr;
- }
- }
- }
- unichar EditBox::get_char_repr(unichar ch)
- {
- if (reprtbl.translate_char(ch)) {
- return ch;
- } else {
- if (reprtbl.empty())
- return 'X';
- else
- return ch;
- }
- }
- static unichar latin1_transliterate(unichar ch)
- {
- switch (ch) {
-
-
-
-
- case 0xB4:
- case 0xA8:
- return 'x';
- case 0x203E:
- return 0xAF;
-
- case UNI_HEB_MAQAF:
- case UNI_HYPHEN:
- case UNI_NON_BREAKING_HYPHEN:
- case UNI_EN_DASH:
- case UNI_EM_DASH:
- case UNI_MINUS_SIGN:
- return '-';
- case UNI_HEB_GERESH:
- case UNI_RIGHT_SINGLE_QUOTE:
- case UNI_SINGLE_LOW9_QUOTE:
- case UNI_SINGLE_HIGH_REV9_QUOTE:
- return '\'';
- case UNI_LEFT_SINGLE_QUOTE:
- return '`';
-
- case UNI_HEB_GERSHAYIM:
- case UNI_LEFT_DOUBLE_QUOTE:
- case UNI_RIGHT_DOUBLE_QUOTE:
- case UNI_DOUBLE_LOW9_QUOTE:
- case UNI_DOUBLE_HIGH_REV9_QUOTE:
- return '"';
- case UNI_HEB_SOF_PASUQ:
- return ':';
- case UNI_HEB_PASEQ:
- return '|';
- case UNI_BULLET:
- return '*';
- }
- return ch;
- }
- void EditBox::draw_unistr(const unichar *str, idx_t len,
- attribute_t *attributes, int *tab_widths)
- {
- unistring buf;
- if (terminal::do_arabic_shaping) {
- buf.append(str, len);
- len = shape(buf.begin(), len, attributes);
- buf.resize(len);
- str = buf.begin();
- }
-
- #define SETWATTR(_attr) \
- if (current_attr != int(_attr)) { \
- wattrset(wnd, _attr); \
- current_attr = _attr; \
- }
- #ifdef HAVE_WIDE_CURSES
- #define put_unichar_attr(_wch, _attr) \
- do { \
- unichar wch = _wch; \
- if (!terminal::is_utf8) { \
- wch = latin1_transliterate(wch); \
- if (WCTOB(wch) == EOF) { \
- wch = get_char_repr(FAILED_CONV_REPR); \
- \
- if (contains_color(def_attr)) \
- def_attr = get_attr(EDIT_FAILED_CONV_ATTR); \
- else \
- def_attr |= get_attr(EDIT_FAILED_CONV_ATTR); \
- } \
- } \
- \
- SETWATTR(contains_color(def_attr) ? def_attr : (_attr | def_attr)); \
- waddnwstr(wnd, (wchar_t*)&wch, 1); \
- } while (0)
- #else
- #define put_unichar_attr(_wch, _attr) \
- do { \
- int ich = latin1_transliterate(_wch); \
- ich = terminal::force_iso88598 ? unicode_to_iso88598(ich) : WCTOB(ich); \
- if (ich == EOF) { \
- ich = get_char_repr(FAILED_CONV_REPR); \
- \
- if (contains_color(def_attr)) \
- def_attr = get_attr(EDIT_FAILED_CONV_ATTR); \
- else \
- def_attr |= get_attr(EDIT_FAILED_CONV_ATTR); \
- } \
- \
- SETWATTR(contains_color(def_attr) ? def_attr : (_attr | def_attr)); \
- waddch(wnd, (unsigned char)ich); \
- } while (0)
- #endif
- int tab_counter = 0;
- int line_width = 0;
- int current_attr = -1;
- for (idx_t i = 0; i < len; i++) {
- unichar ch = str[i];
- int char_width = IS_SIMPLE_ONE_COLUMN_CHAR(ch) ? 1 : mk_wcwidth(ch);
- int def_attr = attributes ? attributes[i] : A_NORMAL;
- if (char_width < 1) {
- if (ch == '\t') {
- if (tab_widths)
- char_width = tab_widths[tab_counter++];
- else
- char_width = tab_width - (line_width % tab_width);
- for (int t = 0; t < char_width; t++) {
- if (show_tabs)
- put_unichar_attr(get_char_repr('\t'), get_attr(EDIT_TAB_ATTR));
- else
- put_unichar_attr(' ', 0);
- }
- } else if (char_width == -1 || ch == '\0') {
-
- char_width = 1;
- put_unichar_attr(get_char_repr(CONTROL_REPR), get_attr(EDIT_CONTROL_ATTR));
- } else {
-
-
- if (BiDi::is_explicit_mark(ch)) {
- if (show_explicits) {
- char_width = 1;
- put_unichar_attr(get_char_repr(ch), get_attr(EDIT_EXPLICIT_ATTR));
- }
- } else if (BiDi::is_hebrew_nsm(ch) || BiDi::is_arabic_nsm(ch)) {
- if (rtl_nsm_display == rtlnsmTransliterated) {
- char_width = 1;
- put_unichar_attr(get_char_repr(ch),
- BiDi::is_cantillation_nsm(ch)
- ? get_attr(EDIT_NSM_CANTILLATION_ATTR)
- : (BiDi::is_arabic_nsm(ch)
- ? get_attr(EDIT_NSM_ARABIC_ATTR)
- : get_attr(EDIT_NSM_HEBREW_ATTR)) );
- } else if (rtl_nsm_display == rtlnsmAsis
- && terminal::is_utf8 && !terminal::is_fixed) {
- put_unichar_attr(ch, 0);
- }
- } else {
-
- if (!terminal::is_utf8 || terminal::is_fixed) {
- char_width = 1;
- put_unichar_attr(get_char_repr(NSM_REPR), get_attr(EDIT_NSM_ATTR));
- } else {
-
- if (ch != UNI_ZWNJ && ch != UNI_ZWJ) {
- put_unichar_attr(ch, 0);
- }
- }
- }
- }
- } else {
- if (char_width == 2 && (!terminal::is_utf8 || terminal::is_fixed)) {
-
- char_width = 1;
- put_unichar_attr(get_char_repr(WIDE_REPR), get_attr(EDIT_WIDE_ATTR));
- } else {
- attribute_t xattr = 0;
- if (ch == UNICODE_LS) {
- ch = get_char_repr(UNICODE_LS);
- xattr = get_attr(EDIT_UNICODE_LS_ATTR);
- } else if (ch == UNI_NO_BREAK_SPACE) {
- ch = ' ';
- } else if (ch == UNI_HEB_MAQAF) {
- if (maqaf_display == mqfTransliterated
- || maqaf_display == mqfHighlighted)
- ch = get_char_repr(UNI_HEB_MAQAF);
- if (maqaf_display == mqfHighlighted)
- xattr = get_attr(EDIT_MAQAF_ATTR);
- }
- put_unichar_attr(ch, xattr);
- }
- }
- line_width += char_width;
- }
- SETWATTR(A_NORMAL);
- #undef SETWATTR
- #undef put_unichar_attr
- }
- void EditBox::calc_tab_widths(const unichar *str, idx_t len,
- bool rev, IntArray &tab_widths)
- {
- tab_widths.clear();
- int line_width = 0;
- wdstate stt;
- idx_t i = rev ? len - 1 : 0;
- while (len--) {
- int char_width = get_char_width(str[i], line_width, &stt);
- if (str[i] == '\t') {
- if (rev)
- tab_widths.insert(tab_widths.begin(), char_width);
- else
- tab_widths.push_back(char_width);
- }
- line_width += char_width;
- i += rev ? -1 : 1;
- }
- }
- void EditBox::draw_rev_unistr(const unichar *str, idx_t len,
- attribute_t *attributes)
- {
- IntArray tab_widths;
- calc_tab_widths(str, len, true, tab_widths);
- draw_unistr(str, len, attributes, tab_widths.begin());
- }
- void EditBox::put_unichar_attr_at(int line, int col, unichar ch, int attr)
- {
- wattrset(wnd, attr);
- wmove(wnd, line, col);
- put_unichar(ch, get_char_repr(FAILED_CONV_REPR));
- }
- void EditBox::draw_eop(int y, int x, Paragraph &p, bool selected)
- {
- if (!show_paragraph_endings)
- return;
- unichar ch;
- switch (p.eop) {
- case eopMac: ch = EOP_MAC_REPR; break;
- case eopDOS: ch = EOP_DOS_REPR; break;
- case eopUnix: ch = p.is_rtl()
- ? EOP_UNIX_RTL_REPR
- : EOP_UNIX_LTR_REPR;
- break;
- case eopUnicode:
- ch = EOP_UNICODE_REPR; break;
- default:
- ch = EOP_NONE_REPR;
- }
- put_unichar_attr_at(y, x, get_char_repr(ch),
- get_attr(EDIT_EOP_ATTR) | (selected ? A_REVERSE : 0));
- }
- void EditBox::redraw_unwrapped_paragraph(
- Paragraph &p,
- int window_start_line,
- bool only_cursor,
- int para_num,
- LevelsArray &levels,
- IdxArray& position_L_to_V,
- IdxArray& position_V_to_L,
- AttributeArray& attributes,
- bool eop_is_selected
- )
- {
- unistring &vis = cache.vis;
- if (!cache.owned_by(para_num)) {
- vis = p.str;
- reorder(levels.begin(), p.str.len(),
- position_V_to_L.begin(),
- position_L_to_V.begin(),
- vis.begin(),
- attributes.begin(), do_mirror,
- (rtl_nsm_display == rtlnsmAsis) && do_mirror);
- }
-
-
-
-
-
-
-
- int cursor_vis_width = 0;
- idx_t cursor_vis_line_pos = -1;
- if (curr_para() == &p) {
- if (cursor.pos == p.str.len())
- cursor_vis_line_pos = p.str.len();
- else {
- cursor_vis_line_pos = position_L_to_V[cursor.pos];
- if (p.is_rtl())
- cursor_vis_line_pos = p.str.len() - cursor_vis_line_pos - 1;
- }
- }
- idx_t start_col = 0, end_col = 0;
- int visible_text_width = get_text_width();
- int segment_width = 0;
-
- if (p.is_rtl()) {
- reverse(vis.begin(), p.str.len());
- reverse(attributes.begin(), p.str.len());
- }
- idx_t i;
- wdstate stt;
- for (i = 0; i < p.str.len(); i++) {
- int char_width = get_char_width(vis[i], segment_width, &stt, !p.is_rtl());
- segment_width += char_width;
- if (segment_width > visible_text_width) {
- if (cursor_vis_line_pos < i) {
-
- segment_width -= char_width;
- end_col = i;
- break;
- } else {
-
-
- stt.clear();
- char_width = get_char_width(vis[i], 0, &stt, !p.is_rtl());
- segment_width = char_width;
- start_col = i;
- }
- }
- if (i == cursor_vis_line_pos)
- cursor_vis_width = segment_width - char_width;
- }
- if (end_col == 0)
- end_col = i;
- if (cursor.pos == p.str.len()) {
- cursor_vis_width = segment_width;
- }
- if (p.is_rtl()) {
- reverse(vis.begin() + start_col, end_col - start_col);
- reverse(attributes.begin() + start_col, end_col - start_col);
- }
-
-
- if (p.is_rtl()) {
- wmove(wnd, window_start_line,
- margin_after + visible_text_width - segment_width);
- draw_rev_unistr(vis.begin() + start_col, end_col - start_col,
- attributes.begin() + start_col);
- } else {
- wmove(wnd, window_start_line, margin_before);
- draw_unistr(vis.begin() + start_col, end_col - start_col,
- attributes.begin() + start_col);
- }
- if (p.is_rtl()) {
-
- reverse(vis.begin() + start_col, end_col - start_col);
- reverse(vis.begin(), p.str.len());
- }
-
- if (end_col != p.str.len()) {
-
-
- put_unichar_attr_at(
- window_start_line,
- p.is_rtl() ? margin_after - 1
- : margin_before + visible_text_width,
- get_char_repr(TRIM_REPR), get_attr(EDIT_TRIM_ATTR));
- } else {
-
- draw_eop(window_start_line,
- p.is_rtl() ? margin_after + visible_text_width
- - segment_width - 1
- : margin_before + segment_width,
- p, eop_is_selected);
- }
-
- if (start_col != 0 && cursor_vis_width > 2) {
-
-
- put_unichar_attr_at(
- window_start_line,
- p.is_rtl() ? margin_after + visible_text_width - 1
- : margin_before,
- get_char_repr(TRIM_REPR), get_attr(EDIT_TRIM_ATTR));
- }
-
- if (p.is_rtl()) {
- cursor_vis_width = visible_text_width - cursor_vis_width - 1;
- wmove(wnd, window_start_line, margin_after + cursor_vis_width);
- } else {
- wmove(wnd, window_start_line, margin_before + cursor_vis_width);
- }
- }
- void EditBox::redraw_wrapped_paragraph(
- Paragraph &p,
- int window_start_line,
- bool only_cursor,
- int para_num,
- LevelsArray &levels,
- IdxArray& position_L_to_V,
- IdxArray& position_V_to_L,
- AttributeArray& attributes,
- bool eop_is_selected
- )
- {
- idx_t cursor_vis_line_pos = -1;
- int cursor_vis_width = 0;
- int cursor_line = -1;
- unistring &vis = cache.vis;
- if (!cache.owned_by(para_num))
- vis = p.str;
-
- int visible_text_width = get_text_width();
- idx_t prev_line_break = 0;
-
- for (int line_num = 0;
- line_num < p.breaks_count();
- line_num++)
- {
- idx_t line_break = p.line_breaks[line_num];
- idx_t line_len = line_break - prev_line_break;
- bool is_last_line = (line_num == p.breaks_count() - 1);
- if (!cache.owned_by(para_num)) {
- reorder(levels.begin() + prev_line_break, line_len,
- position_V_to_L.begin() + prev_line_break,
- position_L_to_V.begin() + prev_line_break,
- vis.begin() + prev_line_break,
- attributes.begin() + prev_line_break, do_mirror,
- (rtl_nsm_display == rtlnsmAsis) && do_mirror);
- }
-
- if ( !only_cursor && window_start_line + line_num >= 0
- && window_start_line + line_num < window_height() ) {
-
- if (p.is_rtl()) {
- int line_width = get_rev_str_width(
- vis.begin() + prev_line_break, line_len);
- int window_x = margin_after;
-
- if (line_width > visible_text_width)
- window_x--;
- else
- window_x += visible_text_width - line_width;
- wmove(wnd, window_start_line + line_num, window_x);
- draw_rev_unistr(vis.begin() + prev_line_break, line_len,
- attributes.begin() + prev_line_break);
- if (is_last_line) {
- draw_eop(window_start_line + line_num, window_x - 1,
- p, eop_is_selected);
- } else if (wrap_type == wrpAnywhere) {
- put_unichar_attr_at(
- window_start_line + line_num,
- margin_after - 1,
- get_char_repr(WRAP_RTL_REPR), get_attr(EDIT_WRAP_ATTR));
- }
- } else {
- wmove(wnd, window_start_line + line_num, margin_before);
- draw_unistr(vis.begin() + prev_line_break, line_len,
- attributes.begin() + prev_line_break);
- if (is_last_line) {
- draw_eop(window_start_line + line_num,
- margin_before + get_str_width(vis.begin()
- + prev_line_break, line_len),
- p, eop_is_selected);
- } else if (wrap_type == wrpAnywhere) {
- put_unichar_attr_at(
- window_start_line + line_num,
- margin_before + visible_text_width,
- get_char_repr(WRAP_LTR_REPR), get_attr(EDIT_WRAP_ATTR));
- }
- }
- }
-
- if (curr_para() == &p && cursor_line == -1) {
- if (cursor.pos < line_break) {
- int cursor_log_line_pos = cursor.pos - prev_line_break;
- cursor_vis_line_pos = position_L_to_V[
- prev_line_break + cursor_log_line_pos];
- if (p.is_rtl()) {
- cursor_vis_width = get_rev_str_width(
- vis.begin() + prev_line_break
- + cursor_vis_line_pos + 1,
- line_len - cursor_vis_line_pos - 1);
- } else {
- cursor_vis_width = get_str_width(
- vis.begin() + prev_line_break,
- cursor_vis_line_pos);
- }
- cursor_line = line_num;
- }
- else if (cursor.pos == p.str.len() && is_last_line) {
- if (p.is_rtl()) {
- cursor_vis_width = get_rev_str_width(
- vis.begin() + prev_line_break,
- line_len);
- } else {
- cursor_vis_width = get_str_width(
- vis.begin() + prev_line_break,
- line_len);
- }
- cursor_line = line_num;
- }
- }
- prev_line_break = line_break;
- }
-
- if (cursor_line != -1) {
- if (p.is_rtl()) {
- cursor_vis_width = visible_text_width - cursor_vis_width - 1;
- wmove(wnd,
- window_start_line + cursor_line,
- margin_after + cursor_vis_width);
- } else {
- wmove(wnd,
- window_start_line + cursor_line,
- margin_before + cursor_vis_width);
- }
- }
- }
- void EditBox::do_syntax_highlight(const unistring &str,
- AttributeArray &attributes, int para_num)
- {
- switch (syn_hlt) {
- case synhltHTML:
- highlight_html(str, attributes);
- break;
- case synhltEmail:
- highlight_email(str, attributes);
- break;
- default:
- break;
- }
- if (underline_hlt)
- highlight_underline(str, attributes);
- }
-
- void EditBox::redraw_paragraph(Paragraph &p, int window_start_line,
- bool only_cursor, int para_num)
- {
-
-
- if (is_primary_mark_set()
- || wrap_type == wrpOff)
-
- cache.invalidate();
-
- LevelsArray &levels = cache.levels;
- IdxArray &position_L_to_V = cache.position_L_to_V;
- IdxArray &position_V_to_L = cache.position_V_to_L;
- AttributeArray &attributes = cache.attributes;
- if (!cache.owned_by(para_num)) {
- position_L_to_V.resize(p.str.len());
- position_V_to_L.resize(p.str.len());
- levels.resize(p.str.len());
- attributes.clear();
- attributes.resize(p.str.len());
- DBG(100, ("get_embedding_levels() - by redraw_paragraph()\n"));
- BiDi::get_embedding_levels(p.str.begin(), p.str.len(),
- p.base_dir(), levels.begin(),
- p.breaks_count(), p.line_breaks.begin(),
- !bidi_enabled);
- do_syntax_highlight(p.str, attributes, para_num);
- }
-
- bool eop_is_selected = false;
-
-
-
- if (is_primary_mark_set()) {
- Point lo = primary_mark, hi = cursor;
- if (hi < lo)
- hi.swap(lo);
- if (lo.para <= para_num && hi.para >= para_num) {
- idx_t start, end;
- if (lo.para == para_num)
- start = lo.pos;
- else
- start = 0;
- if (hi.para == para_num)
- end = hi.pos;
- else {
- eop_is_selected = true;
- end = p.str.len();
- }
- attribute_t selected_attr = get_attr(EDIT_SELECTED_ATTR);
- idx_t i;
- if (contains_color(selected_attr))
- for (i = start; i < end; i++)
- attributes[i] = selected_attr;
- else
- for (i = start; i < end; i++)
- attributes[i] |= selected_attr;
- }
- }
- if (wrap_type == wrpOff) {
- redraw_unwrapped_paragraph(
- p,
- window_start_line,
- only_cursor,
- para_num,
- levels,
- position_L_to_V,
- position_V_to_L,
- attributes,
- eop_is_selected
- );
- } else {
- redraw_wrapped_paragraph(
- p,
- window_start_line,
- only_cursor,
- para_num,
- levels,
- position_L_to_V,
- position_V_to_L,
- attributes,
- eop_is_selected
- );
- }
- cache.set_owner(para_num);
- }
- static void emph_string(unistring &str,
- unichar emph_marker, unichar emph_ch)
- {
- bool in_emph = false;
- for (int i = 0; i < str.len(); i++) {
- if ( (!emph_marker && (str[i] == '*' || str[i] == '_')) ||
- ( emph_marker && str[i] == emph_marker ) ) {
- if (!(!in_emph &&
- i < str.len()-1 &&
- BiDi::is_space(str[i+1])) )
- {
- in_emph = !in_emph;
- str.erase(str.begin() + i);
- i--;
- }
- } else {
- if (in_emph) {
- i++;
-
- while (i < str.len() && BiDi::is_nsm(str[i]))
- i++;
- str.insert(str.begin()+i, emph_ch);
- }
- }
- }
- }
- void EditBox::log2vis(const char *options)
- {
- bool opt_bdo = false;
- bool opt_nopad = false;
- bool opt_engpad = false;
- unichar opt_emph = false;
- unichar opt_emph_marker = 0;
- unichar opt_emph_ch = UNI_NS_UNDERSCORE;
-
- if (options) {
- if (strstr(options, "bdo"))
- opt_bdo = true;
- if (strstr(options, "nopad"))
- opt_nopad = true;
- if (strstr(options, "engpad"))
- opt_engpad = true;
- char *s;
- if ((s = strstr(options, "emph"))) {
- opt_emph = true;
- if (s[4] == ':') {
- opt_emph_ch = strtol(s + 5, &s, 0);
- if (s && (*s == ':' || *s == ','))
- opt_emph_marker = strtol(s + 1, NULL, 0);
- }
- DBG(1, ("--EMPH-- glyph: U+%04lX, marker: U+%04lX\n",
- (unsigned long)opt_emph_ch,
- (unsigned long)opt_emph_marker));
- }
- }
-
- std::vector<unistring> visuals;
-
- for (int i = 0; i < parags_count(); i++)
- {
- Paragraph &p = *paragraphs[i];
- unistring &visp = p.str;
- if (opt_emph) {
- emph_string(visp, opt_emph_marker, opt_emph_ch);
- post_para_modification(p);
- }
-
- cache.invalidate();
- LevelsArray &levels = cache.levels;
- IdxArray &position_L_to_V = cache.position_L_to_V;
- IdxArray &position_V_to_L = cache.position_V_to_L;
- position_L_to_V.resize(p.str.len());
- position_V_to_L.resize(p.str.len());
- levels.resize(p.str.len());
- DBG(100, ("get_embedding_levels() - by log2vis()\n"));
- BiDi::get_embedding_levels(p.str.begin(), p.str.len(),
- p.base_dir(), levels.begin(),
- p.breaks_count(), p.line_breaks.begin());
- int visible_text_width = get_text_width();
- idx_t prev_line_break = 0;
- for (int line_num = 0;
- line_num < p.breaks_count();
- line_num++)
- {
- idx_t line_break = p.line_breaks[line_num];
- idx_t line_len = line_break - prev_line_break;
-
-
- while (line_len
- && BiDi::is_space(p.str[prev_line_break + line_len - 1]))
- line_len--;
-
- reorder(levels.begin() + prev_line_break, line_len,
- position_V_to_L.begin() + prev_line_break,
- position_L_to_V.begin() + prev_line_break,
- visp.begin() + prev_line_break,
- NULL, true,
- rtl_nsm_display == rtlnsmAsis);
- if (terminal::do_arabic_shaping)
- line_len = shape(p.str.begin() + prev_line_break,
- line_len, NULL);
- unistring visline;
-
- if (p.is_rtl() && !opt_nopad) {
- int line_width = get_rev_str_width(
- visp.begin() + prev_line_break, line_len);
- while (line_width < visible_text_width) {
- visline.push_back(' ');
- line_width++;
- }
- }
-
-
- IntArray tab_widths;
- int tab_counter = 0;
- calc_tab_widths(visp.begin() + prev_line_break, line_len,
- p.is_rtl(), tab_widths);
- for (int i = prev_line_break; i < prev_line_break + line_len; i++) {
- if (visp[i] == '\t') {
- int j = tab_widths[tab_counter++];
- while (j--)
- visline.push_back(' ');
- } else if (visp[i] == UNI_HEB_MAQAF
- && maqaf_display != mqfAsis) {
- visline.push_back('-');
- } else {
- if (!BiDi::is_transparent_formatting_code(visp[i]))
- visline.push_back(visp[i]);
- }
- }
-
- if (!p.is_rtl() && opt_engpad) {
- int line_width = get_str_width(
- visp.begin() + prev_line_break, line_len);
- while (line_width < visible_text_width) {
- visline.push_back(' ');
- line_width++;
- }
- }
-
- if (opt_bdo) {
- visline.insert(visline.begin(), UNI_LRO);
- visline.push_back(UNI_PDF);
- }
- visuals.push_back(visline);
-
- prev_line_break = line_break;
- }
- delete paragraphs[i];
- }
-
- paragraphs.clear();
- for (int i = 0; i < (int)visuals.size(); i++) {
- Paragraph *p = new Paragraph();
- p->str = visuals[i];
- p->eop = eopUnix;
- post_para_modification(*p);
-
- if (!(i == (int)visuals.size() - 1 && p->str.len() == 0))
- paragraphs.push_back(p);
- }
- undo_stack.clear();
- unset_primary_mark();
- set_modified(true);
- cursor.zero();
- scroll_to_cursor_line();
- request_update(rgnAll);
- }
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