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751 lines
21 KiB
C++
751 lines
21 KiB
C++
/**
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* Copyright (c) 2007-2012, 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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* @file textview_curses.hh
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*/
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#ifndef textview_curses_hh
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#define textview_curses_hh
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#include <utility>
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#include <vector>
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#include "base/func_util.hh"
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#include "base/lnav_log.hh"
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#include "bookmarks.hh"
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#include "breadcrumb.hh"
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#include "grep_proc.hh"
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#include "highlighter.hh"
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#include "listview_curses.hh"
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#include "lnav_config_fwd.hh"
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#include "logfile_fwd.hh"
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#include "ring_span.hh"
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#include "text_format.hh"
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#include "textview_curses_fwd.hh"
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class textview_curses;
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using vis_bookmarks = bookmarks<vis_line_t>::type;
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class logfile_filter_state {
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public:
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logfile_filter_state(std::shared_ptr<logfile> lf = nullptr);
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void clear();
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void clear_filter_state(size_t index);
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void clear_deleted_filter_state(uint32_t used_mask);
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void resize(size_t newsize);
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nonstd::optional<size_t> content_line_to_vis_line(uint32_t line);
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const static int MAX_FILTERS = 32;
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std::shared_ptr<logfile> tfs_logfile;
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size_t tfs_filter_count[MAX_FILTERS];
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int tfs_filter_hits[MAX_FILTERS];
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bool tfs_message_matched[MAX_FILTERS];
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size_t tfs_lines_for_message[MAX_FILTERS];
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bool tfs_last_message_matched[MAX_FILTERS];
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size_t tfs_last_lines_for_message[MAX_FILTERS];
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std::vector<uint32_t> tfs_mask;
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std::vector<uint32_t> tfs_index;
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};
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enum class filter_lang_t : int {
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NONE,
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REGEX,
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SQL,
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};
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class text_filter {
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public:
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typedef enum {
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MAYBE,
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INCLUDE,
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EXCLUDE,
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LFT__MAX,
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LFT__MASK = (MAYBE | INCLUDE | EXCLUDE)
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} type_t;
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text_filter(type_t type, filter_lang_t lang, std::string id, size_t index)
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: lf_type(type), lf_lang(lang), lf_id(std::move(id)), lf_index(index)
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{
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}
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virtual ~text_filter() = default;
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type_t get_type() const { return this->lf_type; }
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filter_lang_t get_lang() const { return this->lf_lang; }
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void set_type(type_t t) { this->lf_type = t; }
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std::string get_id() const { return this->lf_id; }
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void set_id(std::string id) { this->lf_id = std::move(id); }
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size_t get_index() const { return this->lf_index; }
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bool is_enabled() const { return this->lf_enabled; }
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void enable() { this->lf_enabled = true; }
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void disable() { this->lf_enabled = false; }
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void set_enabled(bool value) { this->lf_enabled = value; }
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void revert_to_last(logfile_filter_state& lfs, size_t rollback_size);
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void add_line(logfile_filter_state& lfs,
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logfile_const_iterator ll,
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shared_buffer_ref& line);
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void end_of_message(logfile_filter_state& lfs);
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virtual bool matches(const logfile& lf,
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logfile_const_iterator ll,
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shared_buffer_ref& line)
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= 0;
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virtual std::string to_command() const = 0;
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bool operator==(const std::string& rhs) const { return this->lf_id == rhs; }
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bool lf_deleted{false};
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protected:
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bool lf_enabled{true};
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type_t lf_type;
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filter_lang_t lf_lang;
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std::string lf_id;
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size_t lf_index;
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};
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class empty_filter : public text_filter {
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public:
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empty_filter(type_t type, size_t index)
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: text_filter(type, filter_lang_t::REGEX, "", index)
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{
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}
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bool matches(const logfile& lf,
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logfile_const_iterator ll,
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shared_buffer_ref& line) override;
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std::string to_command() const override;
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};
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class filter_stack {
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public:
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using iterator = std::vector<std::shared_ptr<text_filter>>::iterator;
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using const_iterator
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= std::vector<std::shared_ptr<text_filter>>::const_iterator;
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using value_type = std::shared_ptr<text_filter>;
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explicit filter_stack(size_t reserved = 0) : fs_reserved(reserved) {}
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iterator begin() { return this->fs_filters.begin(); }
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iterator end() { return this->fs_filters.end(); }
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const_iterator begin() const { return this->fs_filters.begin(); }
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const_iterator end() const { return this->fs_filters.end(); }
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size_t size() const { return this->fs_filters.size(); }
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bool empty() const { return this->fs_filters.empty(); };
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bool full() const
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{
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return (this->fs_reserved + this->fs_filters.size())
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== logfile_filter_state::MAX_FILTERS;
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}
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nonstd::optional<size_t> next_index();
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void add_filter(const std::shared_ptr<text_filter>& filter);
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void clear_filters()
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{
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while (!this->fs_filters.empty()) {
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this->fs_filters.pop_back();
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}
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}
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void set_filter_enabled(const std::shared_ptr<text_filter>& filter,
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bool enabled)
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{
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if (enabled) {
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filter->enable();
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} else {
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filter->disable();
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}
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}
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std::shared_ptr<text_filter> get_filter(const std::string& id);
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bool delete_filter(const std::string& id);
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void get_mask(uint32_t& filter_mask);
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void get_enabled_mask(uint32_t& filter_in_mask, uint32_t& filter_out_mask);
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private:
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const size_t fs_reserved;
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std::vector<std::shared_ptr<text_filter>> fs_filters;
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};
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class text_time_translator {
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public:
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virtual ~text_time_translator() = default;
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virtual nonstd::optional<vis_line_t> row_for_time(
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struct timeval time_bucket)
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= 0;
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virtual nonstd::optional<struct timeval> time_for_row(vis_line_t row) = 0;
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void scroll_invoked(textview_curses* tc);
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void data_reloaded(textview_curses* tc);
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protected:
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struct timeval ttt_top_time {
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0, 0
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};
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};
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class location_history {
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public:
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virtual ~location_history() = default;
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virtual void loc_history_append(vis_line_t top) = 0;
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virtual nonstd::optional<vis_line_t> loc_history_back(
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vis_line_t current_top)
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= 0;
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virtual nonstd::optional<vis_line_t> loc_history_forward(
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vis_line_t current_top)
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= 0;
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const static int MAX_SIZE = 100;
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protected:
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size_t lh_history_position{0};
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};
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/**
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* Source for the text to be shown in a textview_curses view.
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*/
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class text_sub_source {
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public:
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virtual ~text_sub_source() = default;
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enum {
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RB_RAW,
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RB_FULL,
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RB_REWRITE,
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};
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enum {
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RF_RAW = (1UL << RB_RAW),
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RF_FULL = (1UL << RB_FULL),
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RF_REWRITE = (1UL << RB_REWRITE),
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};
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typedef long line_flags_t;
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text_sub_source(size_t reserved_filters = 0) : tss_filters(reserved_filters)
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{
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}
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void register_view(textview_curses* tc) { this->tss_view = tc; }
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/**
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* @return The total number of lines available from the source.
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*/
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virtual size_t text_line_count() = 0;
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virtual size_t text_line_width(textview_curses& curses) { return INT_MAX; }
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virtual bool text_is_row_selectable(textview_curses& tc, vis_line_t row)
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{
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return true;
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}
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virtual void text_selection_changed(textview_curses& tc) {}
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/**
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* Get the value for a line.
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*
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* @param tc The textview_curses object that is delegating control.
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* @param line The line number to retrieve.
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* @param value_out The string object that should be set to the line
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* contents.
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* @param raw Indicates that the raw contents of the line should be returned
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* without any post processing.
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*/
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virtual void text_value_for_line(textview_curses& tc,
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int line,
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std::string& value_out,
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line_flags_t flags = 0)
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= 0;
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virtual size_t text_size_for_line(textview_curses& tc,
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int line,
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line_flags_t raw = 0)
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= 0;
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/**
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* Inform the source that the given line has been marked/unmarked. This
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* callback function can be used to translate between between visible line
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* numbers and content line numbers. For example, when viewing a log file
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* with filters being applied, we want the bookmarked lines to be stable
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* across changes in the filters.
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*
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* @param bm The type of bookmark.
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* @param line The line that has been marked/unmarked.
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* @param added True if the line was bookmarked and false if it was
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* unmarked.
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*/
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virtual void text_mark(const bookmark_type_t* bm,
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vis_line_t line,
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bool added)
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{
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}
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/**
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* Clear the bookmarks for a particular type in the text source.
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*
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* @param bm The type of bookmarks to clear.
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*/
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virtual void text_clear_marks(const bookmark_type_t* bm) {}
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/**
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* Get the attributes for a line of text.
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*
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* @param tc The textview_curses object that is delegating control.
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* @param line The line number to retrieve.
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* @param value_out A string_attrs_t object that should be updated with the
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* attributes for the line.
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*/
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virtual void text_attrs_for_line(textview_curses& tc,
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int line,
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string_attrs_t& value_out)
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{
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}
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/**
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* Update the bookmarks used by the text view based on the bookmarks
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* maintained by the text source.
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*
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* @param bm The bookmarks data structure used by the text view.
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*/
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virtual void text_update_marks(vis_bookmarks& bm) {}
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virtual std::string text_source_name(const textview_curses& tv)
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{
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return "";
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}
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filter_stack& get_filters() { return this->tss_filters; }
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virtual void text_filters_changed() {}
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virtual int get_filtered_count() const { return 0; }
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virtual int get_filtered_count_for(size_t filter_index) const { return 0; }
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virtual text_format_t get_text_format() const
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{
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return text_format_t::TF_UNKNOWN;
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}
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virtual nonstd::optional<
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std::pair<grep_proc_source<vis_line_t>*, grep_proc_sink<vis_line_t>*>>
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get_grepper()
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{
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return nonstd::nullopt;
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}
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virtual nonstd::optional<location_history*> get_location_history()
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{
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return nonstd::nullopt;
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}
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void toggle_apply_filters();
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virtual void text_crumbs_for_line(int line,
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std::vector<breadcrumb::crumb>& crumbs);
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virtual void quiesce() {}
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bool tss_supports_filtering{false};
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bool tss_apply_filters{true};
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protected:
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textview_curses* tss_view{nullptr};
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filter_stack tss_filters;
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};
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class vis_location_history : public location_history {
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public:
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vis_location_history()
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: vlh_history(std::begin(this->vlh_backing),
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std::end(this->vlh_backing))
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{
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}
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void loc_history_append(vis_line_t top) override;
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nonstd::optional<vis_line_t> loc_history_back(
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vis_line_t current_top) override;
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nonstd::optional<vis_line_t> loc_history_forward(
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vis_line_t current_top) override;
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nonstd::ring_span<vis_line_t> vlh_history;
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private:
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vis_line_t current_position()
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{
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auto iter = this->vlh_history.rbegin();
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iter += this->lh_history_position;
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return *iter;
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}
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vis_line_t vlh_backing[MAX_SIZE];
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};
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class text_delegate {
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public:
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virtual ~text_delegate() = default;
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virtual void text_overlay(textview_curses& tc) {}
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virtual bool text_handle_mouse(textview_curses& tc, mouse_event& me)
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{
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return false;
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}
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};
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/**
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* The textview_curses class adds user bookmarks and searching to the standard
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* list view interface.
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*/
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class textview_curses
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: public listview_curses
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, public list_data_source
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, public grep_proc_source<vis_line_t>
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, public grep_proc_sink<vis_line_t>
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, public lnav_config_listener {
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public:
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using action = std::function<void(textview_curses*)>;
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const static bookmark_type_t BM_USER;
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const static bookmark_type_t BM_USER_EXPR;
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const static bookmark_type_t BM_SEARCH;
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const static bookmark_type_t BM_META;
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textview_curses();
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~textview_curses();
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void reload_config(error_reporter& reporter);
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void set_paused(bool paused)
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{
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this->tc_paused = paused;
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if (this->tc_state_event_handler) {
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this->tc_state_event_handler(*this);
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}
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}
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bool is_paused() const { return this->tc_paused; }
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vis_bookmarks& get_bookmarks() { return this->tc_bookmarks; }
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const vis_bookmarks& get_bookmarks() const { return this->tc_bookmarks; }
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void toggle_user_mark(const bookmark_type_t* bm,
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vis_line_t start_line,
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vis_line_t end_line = vis_line_t(-1));
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void set_user_mark(const bookmark_type_t* bm, vis_line_t vl, bool marked);
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textview_curses& set_sub_source(text_sub_source* src);
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text_sub_source* get_sub_source() const { return this->tc_sub_source; }
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textview_curses& set_delegate(std::shared_ptr<text_delegate> del)
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{
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this->tc_delegate = del;
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return *this;
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}
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std::shared_ptr<text_delegate> get_delegate() const
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{
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return this->tc_delegate;
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}
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void horiz_shift(vis_line_t start,
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vis_line_t end,
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int off_start,
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std::pair<int, int>& range_out);
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void set_search_action(action sa)
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{
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this->tc_search_action = std::move(sa);
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};
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void grep_end_batch(grep_proc<vis_line_t>& gp);
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void grep_end(grep_proc<vis_line_t>& gp);
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size_t listview_rows(const listview_curses& lv)
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{
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return this->tc_sub_source == nullptr
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? 0
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: this->tc_sub_source->text_line_count();
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}
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size_t listview_width(const listview_curses& lv)
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{
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return this->tc_sub_source == nullptr
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? 0
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: this->tc_sub_source->text_line_width(*this);
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}
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void listview_value_for_rows(const listview_curses& lv,
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vis_line_t line,
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std::vector<attr_line_t>& rows_out);
|
|
|
|
void textview_value_for_row(vis_line_t line, attr_line_t& value_out);
|
|
|
|
bool listview_is_row_selectable(const listview_curses& lv, vis_line_t row);
|
|
|
|
void listview_selection_changed(const listview_curses& lv);
|
|
|
|
size_t listview_size_for_row(const listview_curses& lv, vis_line_t row)
|
|
{
|
|
return this->tc_sub_source->text_size_for_line(*this, row);
|
|
}
|
|
|
|
std::string listview_source_name(const listview_curses& lv)
|
|
{
|
|
return this->tc_sub_source == nullptr
|
|
? ""
|
|
: this->tc_sub_source->text_source_name(*this);
|
|
}
|
|
|
|
bool grep_value_for_line(vis_line_t line, std::string& value_out);
|
|
|
|
void grep_quiesce()
|
|
{
|
|
if (this->tc_sub_source != nullptr) {
|
|
this->tc_sub_source->quiesce();
|
|
}
|
|
}
|
|
|
|
void grep_begin(grep_proc<vis_line_t>& gp,
|
|
vis_line_t start,
|
|
vis_line_t stop);
|
|
void grep_match(grep_proc<vis_line_t>& gp,
|
|
vis_line_t line,
|
|
int start,
|
|
int end);
|
|
|
|
bool is_searching() const { return this->tc_searching > 0; }
|
|
|
|
void set_follow_search_for(int64_t ms_to_deadline,
|
|
std::function<bool()> func)
|
|
{
|
|
struct timeval now, tv;
|
|
|
|
tv.tv_sec = ms_to_deadline / 1000;
|
|
tv.tv_usec = (ms_to_deadline % 1000) * 1000;
|
|
gettimeofday(&now, nullptr);
|
|
timeradd(&now, &tv, &this->tc_follow_deadline);
|
|
this->tc_follow_top = this->get_top();
|
|
this->tc_follow_func = func;
|
|
}
|
|
|
|
size_t get_match_count() { return this->tc_bookmarks[&BM_SEARCH].size(); }
|
|
|
|
void match_reset()
|
|
{
|
|
this->tc_bookmarks[&BM_SEARCH].clear();
|
|
if (this->tc_sub_source != nullptr) {
|
|
this->tc_sub_source->text_clear_marks(&BM_SEARCH);
|
|
}
|
|
}
|
|
|
|
highlight_map_t& get_highlights() { return this->tc_highlights; }
|
|
|
|
const highlight_map_t& get_highlights() const
|
|
{
|
|
return this->tc_highlights;
|
|
}
|
|
|
|
std::set<highlight_source_t>& get_disabled_highlights()
|
|
{
|
|
return this->tc_disabled_highlights;
|
|
}
|
|
|
|
bool handle_mouse(mouse_event& me);
|
|
|
|
void reload_data();
|
|
|
|
void do_update()
|
|
{
|
|
this->listview_curses::do_update();
|
|
if (this->tc_delegate != nullptr) {
|
|
this->tc_delegate->text_overlay(*this);
|
|
}
|
|
}
|
|
|
|
bool toggle_hide_fields()
|
|
{
|
|
bool retval = this->tc_hide_fields;
|
|
|
|
this->tc_hide_fields = !this->tc_hide_fields;
|
|
|
|
return retval;
|
|
}
|
|
|
|
bool get_hide_fields() const { return this->tc_hide_fields; }
|
|
|
|
void execute_search(const std::string& regex_orig);
|
|
|
|
void redo_search();
|
|
|
|
void search_range(vis_line_t start, vis_line_t stop = -1_vl)
|
|
{
|
|
if (this->tc_search_child) {
|
|
this->tc_search_child->get_grep_proc()->queue_request(start, stop);
|
|
}
|
|
if (this->tc_source_search_child) {
|
|
this->tc_source_search_child->queue_request(start, stop);
|
|
}
|
|
}
|
|
|
|
void search_new_data(vis_line_t start = -1_vl)
|
|
{
|
|
this->search_range(start);
|
|
if (this->tc_search_child) {
|
|
this->tc_search_child->get_grep_proc()->start();
|
|
}
|
|
if (this->tc_source_search_child) {
|
|
this->tc_source_search_child->start();
|
|
}
|
|
}
|
|
|
|
std::string get_current_search() const { return this->tc_current_search; }
|
|
|
|
void save_current_search()
|
|
{
|
|
this->tc_previous_search = this->tc_current_search;
|
|
}
|
|
|
|
void revert_search() { this->execute_search(this->tc_previous_search); }
|
|
|
|
void invoke_scroll()
|
|
{
|
|
if (this->tc_sub_source != nullptr) {
|
|
auto ttt = dynamic_cast<text_time_translator*>(this->tc_sub_source);
|
|
|
|
if (ttt != nullptr) {
|
|
ttt->scroll_invoked(this);
|
|
}
|
|
}
|
|
|
|
listview_curses::invoke_scroll();
|
|
}
|
|
|
|
std::function<void(textview_curses&)> tc_state_event_handler;
|
|
|
|
protected:
|
|
class grep_highlighter {
|
|
public:
|
|
grep_highlighter(std::shared_ptr<grep_proc<vis_line_t>>& gp,
|
|
highlight_source_t source,
|
|
std::string hl_name,
|
|
highlight_map_t& hl_map)
|
|
: gh_grep_proc(std::move(gp)), gh_hl_source(source),
|
|
gh_hl_name(std::move(hl_name)), gh_hl_map(hl_map)
|
|
{
|
|
}
|
|
|
|
~grep_highlighter()
|
|
{
|
|
this->gh_hl_map.erase(
|
|
this->gh_hl_map.find({this->gh_hl_source, this->gh_hl_name}));
|
|
}
|
|
|
|
grep_proc<vis_line_t>* get_grep_proc()
|
|
{
|
|
return this->gh_grep_proc.get();
|
|
}
|
|
|
|
private:
|
|
std::shared_ptr<grep_proc<vis_line_t>> gh_grep_proc;
|
|
highlight_source_t gh_hl_source;
|
|
std::string gh_hl_name;
|
|
highlight_map_t& gh_hl_map;
|
|
};
|
|
|
|
text_sub_source* tc_sub_source{nullptr};
|
|
std::shared_ptr<text_delegate> tc_delegate;
|
|
|
|
vis_bookmarks tc_bookmarks;
|
|
|
|
int tc_searching{0};
|
|
struct timeval tc_follow_deadline {
|
|
0, 0
|
|
};
|
|
vis_line_t tc_follow_top{-1_vl};
|
|
std::function<bool()> tc_follow_func;
|
|
action tc_search_action;
|
|
|
|
highlight_map_t tc_highlights;
|
|
std::set<highlight_source_t> tc_disabled_highlights;
|
|
|
|
vis_line_t tc_selection_start{-1_vl};
|
|
vis_line_t tc_selection_last{-1_vl};
|
|
bool tc_selection_cleared{false};
|
|
bool tc_hide_fields{true};
|
|
bool tc_paused{false};
|
|
|
|
std::string tc_current_search;
|
|
std::string tc_previous_search;
|
|
std::shared_ptr<grep_highlighter> tc_search_child;
|
|
std::shared_ptr<grep_proc<vis_line_t>> tc_source_search_child;
|
|
};
|
|
|
|
#endif
|