diff options
Diffstat (limited to 'src/statusview_curses.cc')
| -rw-r--r-- | src/statusview_curses.cc | 240 |
1 files changed, 240 insertions, 0 deletions
diff --git a/src/statusview_curses.cc b/src/statusview_curses.cc new file mode 100644 index 0000000..f27bff0 --- /dev/null +++ b/src/statusview_curses.cc @@ -0,0 +1,240 @@ +/** + * Copyright (c) 2007-2012, Timothy Stack + * + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are met: + * + * * Redistributions of source code must retain the above copyright notice, this + * list of conditions and the following disclaimer. + * * Redistributions in binary form must reproduce the above copyright notice, + * this list of conditions and the following disclaimer in the documentation + * and/or other materials provided with the distribution. + * * Neither the name of Timothy Stack nor the names of its contributors + * may be used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ''AS IS'' AND ANY + * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED + * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE + * DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE FOR ANY + * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES + * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; + * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND + * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS + * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + * + * @file statusview_curses.cc + */ + +#include <algorithm> +#include <vector> + +#include "statusview_curses.hh" + +#include "base/ansi_scrubber.hh" +#include "config.h" + +void +status_field::set_value(std::string value) +{ + auto& sa = this->sf_value.get_attrs(); + + sa.clear(); + + scrub_ansi_string(value, &sa); + this->sf_value.with_string(value); +} + +void +status_field::do_cylon() +{ + auto& sa = this->sf_value.get_attrs(); + + remove_string_attr(sa, &VC_STYLE); + + auto cycle_pos = (this->sf_cylon_pos % (4 + this->sf_width * 2)) - 2; + auto start = cycle_pos < this->sf_width + ? cycle_pos + : (this->sf_width - (cycle_pos - this->sf_width) - 1); + auto stop = std::min(start + 3, this->sf_width); + struct line_range lr(std::max<long>(start, 0L), stop); + auto& vc = view_colors::singleton(); + + auto attrs = vc.attrs_for_role(role_t::VCR_ACTIVE_STATUS); + attrs.ta_attrs |= A_REVERSE; + sa.emplace_back(lr, VC_STYLE.value(attrs)); + + this->sf_cylon_pos += 1; +} + +void +status_field::set_stitch_value(role_t left, role_t right) +{ + auto& sa = this->sf_value.get_attrs(); + struct line_range lr(0, 1); + + this->sf_value.get_string() = "::"; + sa.clear(); + sa.emplace_back(lr, VC_ROLE.value(left)); + lr.lr_start = 1; + lr.lr_end = 2; + sa.emplace_back(lr, VC_ROLE.value(right)); +} + +void +statusview_curses::do_update() +{ + int top, field, field_count, left = 0, right; + auto& vc = view_colors::singleton(); + unsigned long width, height; + + if (!this->vc_visible || this->sc_window == nullptr) { + return; + } + + getmaxyx(this->sc_window, height, width); + this->window_change(); + + top = this->sc_top < 0 ? height + this->sc_top : this->sc_top; + right = width; + auto attrs = vc.attrs_for_role( + this->sc_enabled ? this->sc_default_role : role_t::VCR_INACTIVE_STATUS); + + auto pair = vc.ensure_color_pair(attrs.ta_fg_color, attrs.ta_bg_color); + wattr_set(this->sc_window, attrs.ta_attrs, pair, nullptr); + wmove(this->sc_window, top, 0); + wclrtoeol(this->sc_window); + whline(this->sc_window, ' ', width); + + if (this->sc_source != nullptr) { + field_count = this->sc_source->statusview_fields(); + for (field = 0; field < field_count; field++) { + auto& sf = this->sc_source->statusview_value_for_field(field); + struct line_range lr(0, sf.get_width()); + int x; + + if (sf.is_cylon()) { + sf.do_cylon(); + } + auto val = sf.get_value(); + if (!this->sc_enabled) { + for (auto& sa : val.get_attrs()) { + if (sa.sa_type == &VC_STYLE) { + auto sa_attrs = sa.sa_value.get<text_attrs>(); + sa_attrs.ta_attrs &= ~(A_REVERSE | A_COLOR); + sa_attrs.ta_fg_color = nonstd::nullopt; + sa_attrs.ta_bg_color = nonstd::nullopt; + sa.sa_value = sa_attrs; + } else if (sa.sa_type == &VC_ROLE) { + if (sa.sa_value.get<role_t>() + == role_t::VCR_ALERT_STATUS) + { + sa.sa_value.get<role_t>() + = role_t::VCR_INACTIVE_ALERT_STATUS; + } else { + sa.sa_value = role_t::VCR_NONE; + } + } + } + } + if (sf.get_left_pad() > 0) { + val.insert(0, sf.get_left_pad(), ' '); + } + + if (sf.is_right_justified()) { + val.right_justify(sf.get_width()); + + right -= sf.get_width(); + x = right; + } else { + x = left; + left += sf.get_width(); + } + + if (val.length() > sf.get_width()) { + static const std::string ELLIPSIS = "\xE2\x8B\xAF"; + + if (sf.get_width() > 11) { + size_t half_width = sf.get_width() / 2 - 1; + + val.erase(half_width, val.length() - (half_width * 2)); + val.insert(half_width, ELLIPSIS); + } else { + val = val.subline(0, sf.get_width() - 1); + val.append(ELLIPSIS); + } + } + + auto default_role = sf.get_role(); + if (!this->sc_enabled) { + if (default_role == role_t::VCR_ALERT_STATUS) { + default_role = role_t::VCR_INACTIVE_ALERT_STATUS; + } else if (default_role != role_t::VCR_STATUS_INFO) { + default_role = role_t::VCR_INACTIVE_STATUS; + } + } + + mvwattrline(this->sc_window, top, x, val, lr, default_role); + } + } + wmove(this->sc_window, top + 1, 0); +} + +void +statusview_curses::window_change() +{ + if (this->sc_source == nullptr) { + return; + } + + int field_count = this->sc_source->statusview_fields(); + int total_shares = 0; + unsigned long width, height; + double remaining = 0; + std::vector<status_field*> resizable; + + getmaxyx(this->sc_window, height, width); + // Silence the compiler. Remove this if height is used at a later stage. + (void) height; + remaining = width - 2; + + for (int field = 0; field < field_count; field++) { + auto& sf = this->sc_source->statusview_value_for_field(field); + + remaining -= sf.get_share() ? sf.get_min_width() : sf.get_width(); + total_shares += sf.get_share(); + if (sf.get_share()) { + resizable.emplace_back(&sf); + } + } + + if (remaining < 2) { + remaining = 0; + } + + std::stable_sort(begin(resizable), end(resizable), [](auto l, auto r) { + return r->get_share() < l->get_share(); + }); + for (auto* sf : resizable) { + double divisor = total_shares / sf->get_share(); + int available = remaining / divisor; + int actual_width; + + if ((sf->get_left_pad() + sf->get_value().length()) + < (sf->get_min_width() + available)) + { + actual_width = std::max( + (int) sf->get_min_width(), + (int) (sf->get_left_pad() + sf->get_value().length())); + } else { + actual_width = sf->get_min_width() + available; + } + remaining -= (actual_width - sf->get_min_width()); + total_shares -= sf->get_share(); + + sf->set_width(actual_width); + } +} |