mirror of https://github.com/tstack/lnav.git
251 lines
7.7 KiB
C++
251 lines
7.7 KiB
C++
/**
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* Copyright (c) 2019, Timothy Stack
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*
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are met:
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*
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* * Redistributions of source code must retain the above copyright notice, this
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* list of conditions and the following disclaimer.
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* * Redistributions in binary form must reproduce the above copyright notice,
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* this list of conditions and the following disclaimer in the documentation
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* and/or other materials provided with the distribution.
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* * Neither the name of Timothy Stack nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ''AS IS'' AND ANY
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* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
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* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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* DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE FOR ANY
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* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
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* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
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* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
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* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
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* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#include "bottom_status_source.hh"
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#include "base/snippet_highlighters.hh"
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#include "config.h"
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bottom_status_source::bottom_status_source()
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{
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this->bss_fields[BSF_LINE_NUMBER].set_min_width(10);
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this->bss_fields[BSF_LINE_NUMBER].set_share(1000);
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this->bss_fields[BSF_PERCENT].set_width(6);
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this->bss_fields[BSF_PERCENT].set_left_pad(1);
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this->bss_fields[BSF_HITS].set_min_width(10);
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this->bss_fields[BSF_HITS].set_share(5);
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this->bss_fields[BSF_SEARCH_TERM].set_min_width(10);
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this->bss_fields[BSF_SEARCH_TERM].set_share(1);
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this->bss_fields[BSF_LOADING].set_width(13);
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this->bss_fields[BSF_LOADING].right_justify(true);
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this->bss_fields[BSF_HELP].set_width(14);
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this->bss_fields[BSF_HELP].set_value("?:View Help");
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this->bss_fields[BSF_HELP].right_justify(true);
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this->bss_prompt.set_left_pad(1);
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this->bss_prompt.set_min_width(35);
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this->bss_prompt.set_share(1);
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this->bss_error.set_left_pad(1);
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this->bss_error.set_min_width(35);
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this->bss_error.set_share(1);
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this->bss_line_error.set_left_pad(1);
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this->bss_line_error.set_min_width(35);
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this->bss_line_error.set_share(1);
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}
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void
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bottom_status_source::update_line_number(listview_curses* lc)
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{
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status_field& sf = this->bss_fields[BSF_LINE_NUMBER];
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if (lc->get_inner_height() == 0) {
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sf.set_value(" L0");
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} else {
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sf.set_value(" L%'d", (int) lc->get_top());
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}
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this->bss_line_error.set_value(
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lc->map_top_row([](const attr_line_t& top_row)
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-> nonstd::optional<std::string> {
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const auto& sa = top_row.get_attrs();
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auto error_wrapper = get_string_attr(sa, SA_ERROR);
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if (error_wrapper) {
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return error_wrapper.value().get();
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}
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return nonstd::nullopt;
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}).value_or(""));
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}
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void
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bottom_status_source::update_search_term(textview_curses& tc)
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{
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auto& sf = this->bss_fields[BSF_SEARCH_TERM];
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auto search_term = tc.get_current_search();
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sf.clear();
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if (!search_term.empty()) {
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auto search_term_al = attr_line_t(search_term);
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lnav::snippets::regex_highlighter(
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search_term_al, -1, line_range{0, (int) search_term_al.length()});
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sf.get_value().append_quoted(search_term_al);
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}
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this->bss_paused = tc.is_paused();
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this->update_loading(0, 0);
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}
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void
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bottom_status_source::update_percent(listview_curses* lc)
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{
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status_field& sf = this->bss_fields[BSF_PERCENT];
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vis_line_t top = lc->get_top();
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vis_line_t bottom, height;
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unsigned long width;
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double percent;
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lc->get_dimensions(height, width);
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if (lc->get_inner_height() > 0) {
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bottom = std::min(top + height - 1_vl, lc->get_inner_height() - 1_vl);
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percent = (double) (bottom + 1);
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percent /= (double) lc->get_inner_height();
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percent *= 100.0;
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} else {
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percent = 0.0;
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}
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sf.set_value("%3d%% ", (int) percent);
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}
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void
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bottom_status_source::update_marks(listview_curses* lc)
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{
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auto* tc = static_cast<textview_curses*>(lc);
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vis_bookmarks& bm = tc->get_bookmarks();
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status_field& sf = this->bss_fields[BSF_HITS];
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if (bm.find(&textview_curses::BM_SEARCH) != bm.end()) {
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bookmark_vector<vis_line_t>& bv = bm[&textview_curses::BM_SEARCH];
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if (!bv.empty() || !tc->get_current_search().empty()) {
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bookmark_vector<vis_line_t>::iterator lb;
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lb = std::lower_bound(bv.begin(), bv.end(), tc->get_top());
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if (lb != bv.end() && *lb == tc->get_top()) {
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sf.set_value(" Hit %'d of %'d for ",
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std::distance(bv.begin(), lb) + 1,
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tc->get_match_count());
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} else {
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sf.set_value(" %'d hits for ", tc->get_match_count());
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}
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} else {
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sf.clear();
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}
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} else {
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sf.clear();
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}
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}
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void
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bottom_status_source::update_hits(textview_curses* tc)
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{
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status_field& sf = this->bss_fields[BSF_HITS];
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role_t new_role;
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if (tc->is_searching()) {
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this->bss_hit_spinner += 1;
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if (this->bss_hit_spinner % 2) {
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new_role = role_t::VCR_ACTIVE_STATUS;
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} else {
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new_role = role_t::VCR_ACTIVE_STATUS2;
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}
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sf.set_cylon(true);
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} else {
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new_role = role_t::VCR_STATUS;
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sf.set_cylon(false);
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}
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// this->bss_error.clear();
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sf.set_role(new_role);
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this->update_marks(tc);
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}
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void
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bottom_status_source::update_loading(file_off_t off, file_ssize_t total)
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{
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auto& sf = this->bss_fields[BSF_LOADING];
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require(off >= 0);
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require(off <= total);
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if (total == 0) {
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sf.set_cylon(false);
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sf.set_role(role_t::VCR_STATUS);
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if (this->bss_paused) {
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sf.set_value("\xE2\x80\x96 Paused");
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} else {
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sf.clear();
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}
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} else if (off == total) {
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static const std::vector<std::string> DOTS = {
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" ",
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". ",
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".. ",
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"...",
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".. ",
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". ",
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};
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this->bss_load_percent += 1;
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sf.set_cylon(true);
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sf.set_role(role_t::VCR_ACTIVE_STATUS2);
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sf.set_value(" Working%s ",
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DOTS[this->bss_load_percent % DOTS.size()].c_str());
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} else {
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int pct = (int) (((double) off / (double) total) * 100.0);
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if (this->bss_load_percent != pct) {
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this->bss_load_percent = pct;
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sf.set_cylon(true);
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sf.set_role(role_t::VCR_ACTIVE_STATUS2);
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sf.set_value(" Loading %2d%% ", pct);
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}
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}
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}
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size_t
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bottom_status_source::statusview_fields()
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{
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size_t retval;
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if (this->bss_prompt.empty() && this->bss_error.empty()
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&& this->bss_line_error.empty())
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{
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retval = BSF__MAX;
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} else {
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retval = 1;
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}
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return retval;
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}
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status_field&
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bottom_status_source::statusview_value_for_field(int field)
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{
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if (!this->bss_error.empty()) {
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return this->bss_error;
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}
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if (!this->bss_prompt.empty()) {
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return this->bss_prompt;
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}
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if (!this->bss_line_error.empty()) {
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return this->bss_line_error;
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}
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return this->get_field((field_t) field);
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}
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