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267 lines
8.4 KiB
C++
267 lines
8.4 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 ON
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* 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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#ifndef _bottom_status_source_hh
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#define _bottom_status_source_hh
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#include <string>
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#include "grep_proc.hh"
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#include "textview_curses.hh"
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#include "logfile_sub_source.hh"
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#include "status_controllers.hh"
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class bottom_status_source
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: public status_data_source,
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public grep_proc_control {
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public:
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typedef listview_curses::action::mem_functor_t<
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bottom_status_source> lv_functor_t;
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typedef enum {
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BSF_LINE_NUMBER,
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BSF_PERCENT,
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BSF_HITS,
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BSF_FILTERED,
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BSF_LOADING,
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BSF_HELP,
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BSF__MAX
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} field_t;
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bottom_status_source()
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: line_number_wire(*this, &bottom_status_source::update_line_number),
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percent_wire(*this, &bottom_status_source::update_percent),
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marks_wire(*this, &bottom_status_source::update_marks),
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bss_prompt(80, view_colors::VCR_STATUS),
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bss_error(80, view_colors::VCR_ALERT_STATUS),
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bss_hit_spinner(0),
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bss_load_percent(0),
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bss_last_filtered_count(0),
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bss_filter_counter(0)
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{
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this->bss_fields[BSF_LINE_NUMBER].set_width(11);
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this->bss_fields[BSF_PERCENT].set_width(4);
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this->bss_fields[BSF_HITS].set_width(36);
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this->bss_fields[BSF_FILTERED].set_width(20);
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this->bss_fields[BSF_FILTERED].set_role(view_colors::VCR_BOLD_STATUS);
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this->bss_fields[BSF_LOADING].set_width(13);
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this->bss_fields[BSF_LOADING].set_cylon(true);
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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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};
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virtual ~bottom_status_source() { };
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lv_functor_t line_number_wire;
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lv_functor_t percent_wire;
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lv_functor_t marks_wire;
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status_field &get_field(field_t id) { return this->bss_fields[id]; };
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void set_prompt(const std::string &prompt)
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{
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this->bss_prompt.set_value(prompt);
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};
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void grep_error(std::string msg)
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{
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this->bss_error.set_value(msg);
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};
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size_t statusview_fields(void)
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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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retval = BSF__MAX;
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}
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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 &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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else if (!this->bss_prompt.empty()) {
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return this->bss_prompt;
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}
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else {
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return this->get_field((field_t)field);
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}
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};
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void 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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}
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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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};
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void 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 - vis_line_t(1),
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vis_line_t(lc->get_inner_height() - 1));
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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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}
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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 update_marks(listview_curses *lc)
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{
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textview_curses *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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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",
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std::distance(bv.begin(), lb) + 1, tc->get_match_count());
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} else {
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sf.set_value("%'9d hits", tc->get_match_count());
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}
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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 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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view_colors::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 = view_colors::VCR_ACTIVE_STATUS;
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}
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else{
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new_role = view_colors::VCR_ACTIVE_STATUS2;
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}
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sf.set_cylon(true);
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}
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else {
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new_role = view_colors::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 update_loading(off_t off, size_t total)
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{
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status_field &sf = this->bss_fields[BSF_LOADING];
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if (total == 0 || (size_t)off == total) {
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sf.set_role(view_colors::VCR_STATUS);
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sf.clear();
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}
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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_role(view_colors::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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void update_filtered(text_sub_source *tss)
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{
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status_field &sf = this->bss_fields[BSF_FILTERED];
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if (tss == NULL || tss->get_filtered_count() == 0) {
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sf.clear();
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}
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else {
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ui_periodic_timer &timer = ui_periodic_timer::singleton();
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if (tss->get_filtered_count() == this->bss_last_filtered_count) {
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if (timer.fade_diff(this->bss_filter_counter) == 0) {
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this->bss_fields[BSF_FILTERED].set_role(
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view_colors::VCR_BOLD_STATUS);
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}
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}
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else {
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this->bss_fields[BSF_FILTERED].set_role(
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view_colors::VCR_ALERT_STATUS);
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this->bss_last_filtered_count = tss->get_filtered_count();
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timer.start_fade(this->bss_filter_counter, 3);
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}
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sf.set_value("%'9d Not Shown", tss->get_filtered_count());
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}
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};
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private:
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status_field bss_prompt;
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status_field bss_error;
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status_field bss_fields[BSF__MAX];
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int bss_hit_spinner;
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int bss_load_percent;
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int bss_last_filtered_count;
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sig_atomic_t bss_filter_counter;
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};
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#endif
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