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polybar-dwm/include/components/bar.hpp
Michael Carlberg 17e16d18a9 fix(i3): Make tray copy the bar' visibility state 
This adds a fallback routine where the tray window will
get notified whenever the bar window changes its visibility
state. Required in case of failure to restack the tray container
above the bar window in the window stack.

Fixes jaagr/lemonbuddy#95
2016-10-15 20:10:40 +02:00

1012 lines
32 KiB
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#pragma once
#include <xcb/xcb_icccm.h>
#include <mutex>
#include "common.hpp"
#include "components/config.hpp"
#include "components/logger.hpp"
#include "components/parser.hpp"
#include "components/signals.hpp"
#include "components/types.hpp"
#include "components/x11/connection.hpp"
#include "components/x11/draw.hpp"
#include "components/x11/fontmanager.hpp"
#include "components/x11/randr.hpp"
#include "components/x11/tray.hpp"
#include "components/x11/types.hpp"
#include "components/x11/window.hpp"
#include "components/x11/xlib.hpp"
#include "components/x11/xutils.hpp"
#include "utils/bspwm.hpp"
#include "utils/math.hpp"
#include "utils/string.hpp"
#include "utils/threading.hpp"
#if ENABLE_I3
#include "utils/i3.hpp"
#endif
LEMONBUDDY_NS
class bar : public xpp::event::sink<evt::button_press, evt::expose, evt::property_notify> {
public:
/**
* Construct bar
*/
explicit bar(connection& conn, const config& config, const logger& logger,
unique_ptr<fontmanager> fontmanager)
: m_connection(conn)
, m_conf(config)
, m_log(logger)
, m_fontmanager(forward<decltype(fontmanager)>(fontmanager)) {}
/**
* Cleanup signal handlers and destroy the bar window
*/
~bar() {
std::lock_guard<threading_util::spin_lock> lck(m_lock);
g_signals::parser::alignment_change.disconnect(this, &bar::on_alignment_change);
g_signals::parser::attribute_set.disconnect(this, &bar::on_attribute_set);
g_signals::parser::attribute_unset.disconnect(this, &bar::on_attribute_unset);
g_signals::parser::attribute_toggle.disconnect(this, &bar::on_attribute_toggle);
g_signals::parser::action_block_open.disconnect(this, &bar::on_action_block_open);
g_signals::parser::action_block_close.disconnect(this, &bar::on_action_block_close);
g_signals::parser::color_change.disconnect(this, &bar::on_color_change);
g_signals::parser::font_change.disconnect(this, &bar::on_font_change);
g_signals::parser::pixel_offset.disconnect(this, &bar::on_pixel_offset);
g_signals::parser::ascii_text_write.disconnect(this, &bar::draw_character);
g_signals::parser::unicode_text_write.disconnect(this, &bar::draw_character);
if (m_tray.align != alignment::NONE)
g_signals::tray::report_slotcount.disconnect(this, &bar::on_tray_report);
if (m_sinkattached)
m_connection.detach_sink(this, 1);
m_window.destroy();
}
/**
* Configure injection module
*/
template <typename T = unique_ptr<bar>>
static di::injector<T> configure() {
// clang-format off
return di::make_injector(
connection::configure(),
config::configure(),
logger::configure(),
fontmanager::configure());
// clang-format on
}
/**
* Create required components
*
* This is done outside the constructor due to boost::di noexcept
*/
void bootstrap(bool nodraw = false) { //{{{
m_screen = m_connection.screen();
m_visual = m_connection.visual_type(m_screen, 32).get();
auto monitors = randr_util::get_monitors(m_connection, m_connection.screen()->root);
auto bs = m_conf.bar_section();
// Look for the defined monitor {{{
if (monitors.empty())
throw application_error("No monitors found");
auto monitor_name = m_conf.get<string>(bs, "monitor", "");
if (monitor_name.empty())
monitor_name = monitors[0]->name;
for (auto&& monitor : monitors) {
if (monitor_name.compare(monitor->name) == 0) {
m_bar.monitor = std::move(monitor);
break;
}
}
if (m_bar.monitor)
m_log.trace("bar: Found matching monitor %s (%ix%i+%i+%i)", m_bar.monitor->name,
m_bar.monitor->w, m_bar.monitor->h, m_bar.monitor->x, m_bar.monitor->y);
else
throw application_error("Could not find monitor: " + monitor_name);
// }}}
// Set bar colors {{{
m_bar.background = color::parse(m_conf.get<string>(bs, "background", m_bar.background.hex()));
m_bar.foreground = color::parse(m_conf.get<string>(bs, "foreground", m_bar.foreground.hex()));
m_bar.linecolor = color::parse(m_conf.get<string>(bs, "linecolor", m_bar.linecolor.hex()));
// }}}
// Set border values {{{
auto bsize = m_conf.get<int>(bs, "border-size", 0);
auto bcolor = m_conf.get<string>(bs, "border-color", "");
m_borders.emplace(border::TOP, border_settings{});
m_borders[border::TOP].size = m_conf.get<int>(bs, "border-top", bsize);
m_borders[border::TOP].color = color::parse(m_conf.get<string>(bs, "border-top-color", bcolor));
m_borders.emplace(border::BOTTOM, border_settings{});
m_borders[border::BOTTOM].size = m_conf.get<int>(bs, "border-bottom", bsize);
m_borders[border::BOTTOM].color =
color::parse(m_conf.get<string>(bs, "border-bottom-color", bcolor));
m_borders.emplace(border::LEFT, border_settings{});
m_borders[border::LEFT].size = m_conf.get<int>(bs, "border-left", bsize);
m_borders[border::LEFT].color =
color::parse(m_conf.get<string>(bs, "border-left-color", bcolor));
m_borders.emplace(border::RIGHT, border_settings{});
m_borders[border::RIGHT].size = m_conf.get<int>(bs, "border-right", bsize);
m_borders[border::RIGHT].color =
color::parse(m_conf.get<string>(bs, "border-right-color", bcolor));
// }}}
// Set size and position {{{
GET_CONFIG_VALUE(bs, m_bar.dock, "dock");
GET_CONFIG_VALUE(bs, m_bar.bottom, "bottom");
GET_CONFIG_VALUE(bs, m_bar.spacing, "spacing");
GET_CONFIG_VALUE(bs, m_bar.lineheight, "lineheight");
GET_CONFIG_VALUE(bs, m_bar.offset_x, "offset-x");
GET_CONFIG_VALUE(bs, m_bar.offset_y, "offset-y");
GET_CONFIG_VALUE(bs, m_bar.padding_left, "padding-left");
GET_CONFIG_VALUE(bs, m_bar.padding_right, "padding-right");
GET_CONFIG_VALUE(bs, m_bar.module_margin_left, "module-margin-left");
GET_CONFIG_VALUE(bs, m_bar.module_margin_right, "module-margin-right");
auto w = m_conf.get<string>(bs, "width", "100%");
auto h = m_conf.get<string>(bs, "height", "24");
m_bar.width = std::atoi(w.c_str());
if (w.find("%") != string::npos)
m_bar.width = m_bar.monitor->w * (m_bar.width / 100.0) + 0.5f;
m_bar.height = std::atoi(h.c_str());
if (h.find("%") != string::npos)
m_bar.height = m_bar.monitor->h * (m_bar.height / 100.0) + 0.5f;
// apply offsets
m_bar.x = m_bar.offset_x + m_bar.monitor->x;
m_bar.y = m_bar.offset_y + m_bar.monitor->y;
// apply borders
m_bar.height += m_borders[border::TOP].size;
m_bar.height += m_borders[border::BOTTOM].size;
if (m_bar.bottom)
m_bar.y = m_bar.monitor->y + m_bar.monitor->h - m_bar.height - m_bar.offset_y;
if (m_bar.width <= 0 || m_bar.width > m_bar.monitor->w)
throw application_error("Resulting bar width is out of bounds");
if (m_bar.height <= 0 || m_bar.height > m_bar.monitor->h)
throw application_error("Resulting bar height is out of bounds");
m_bar.width = math_util::cap<int>(m_bar.width, 0, m_bar.monitor->w);
m_bar.height = math_util::cap<int>(m_bar.height, 0, m_bar.monitor->h);
m_bar.vertical_mid =
(m_bar.height + m_borders[border::TOP].size - m_borders[border::BOTTOM].size) / 2;
m_log.trace("bar: Resulting bar geom %ix%i+%i+%i", m_bar.width, m_bar.height, m_bar.x, m_bar.y);
// }}}
// Set the WM_NAME value {{{
m_bar.wmname = "lemonbuddy-" + bs.substr(4) + "_" + m_bar.monitor->name;
m_bar.wmname = m_conf.get<string>(bs, "wm-name", m_bar.wmname);
m_bar.wmname = string_util::replace(m_bar.wmname, " ", "-");
// }}}
// Set misc parameters {{{
m_bar.separator = string_util::trim(m_conf.get<string>(bs, "separator", ""), '"');
m_bar.locale = m_conf.get<string>(bs, "locale", "");
// }}}
// Checking nodraw {{{
if (nodraw) {
m_log.trace("bar: Abort bootstrap routine (reason: nodraw)");
return;
}
// }}}
// Setup graphic components and create the window {{{
m_log.trace("bar: Create colormap");
{
m_connection.create_colormap_checked(
XCB_COLORMAP_ALLOC_NONE, m_colormap, m_screen->root, m_visual->visual_id);
}
m_log.trace("bar: Create window %s", m_connection.id(m_window));
{
uint32_t mask = 0;
xcb_params_cw_t params;
// clang-format off
XCB_AUX_ADD_PARAM(&mask, &params, back_pixel, m_bar.background.value());
XCB_AUX_ADD_PARAM(&mask, &params, border_pixel, m_bar.background.value());
XCB_AUX_ADD_PARAM(&mask, &params, colormap, m_colormap);
XCB_AUX_ADD_PARAM(&mask, &params, override_redirect, m_bar.dock);
XCB_AUX_ADD_PARAM(&mask, &params, event_mask, XCB_EVENT_MASK_PROPERTY_CHANGE | XCB_EVENT_MASK_EXPOSURE | XCB_EVENT_MASK_BUTTON_PRESS);
// clang-format on
m_window.create_checked(m_bar.x, m_bar.y, m_bar.width, m_bar.height, mask, &params);
}
m_log.trace("bar: Set WM_NAME");
{
xcb_icccm_set_wm_name(
m_connection, m_window, XCB_ATOM_STRING, 8, m_bar.wmname.length(), m_bar.wmname.c_str());
xcb_icccm_set_wm_class(m_connection, m_window, 21, "lemonbuddy\0Lemonbuddy");
}
m_log.trace("bar: Set _NET_WM_WINDOW_TYPE");
{
const uint32_t win_types[1] = {_NET_WM_WINDOW_TYPE_DOCK};
m_connection.change_property_checked(
XCB_PROP_MODE_REPLACE, m_window, _NET_WM_WINDOW_TYPE, XCB_ATOM_ATOM, 32, 1, win_types);
}
m_log.trace("bar: Set _NET_WM_STATE");
{
const uint32_t win_states[2] = {_NET_WM_STATE_STICKY, _NET_WM_STATE_ABOVE};
m_connection.change_property_checked(
XCB_PROP_MODE_REPLACE, m_window, _NET_WM_STATE, XCB_ATOM_ATOM, 32, 2, win_states);
}
m_log.trace("bar: Set _NET_WM_STRUT_PARTIAL");
{
uint32_t none{0};
uint32_t value_list[12]{none};
if (m_bar.bottom) {
value_list[3] = m_bar.height;
value_list[10] = m_bar.x;
value_list[11] = m_bar.x + m_bar.width;
} else {
value_list[2] = m_bar.height;
value_list[8] = m_bar.x;
value_list[9] = m_bar.x + m_bar.width;
}
m_connection.change_property_checked(XCB_PROP_MODE_REPLACE, m_window, _NET_WM_STRUT_PARTIAL,
XCB_ATOM_CARDINAL, 32, 12, value_list);
}
m_log.trace("bar: Set _NET_WM_DESKTOP");
{
const uint32_t value_list[1]{-1u};
m_connection.change_property_checked(
XCB_PROP_MODE_REPLACE, m_window, _NET_WM_DESKTOP, XCB_ATOM_CARDINAL, 32, 1, value_list);
}
m_log.trace("bar: Set _NET_WM_PID");
{
const uint32_t value_list[1]{uint32_t(getpid())};
m_connection.change_property_checked(
XCB_PROP_MODE_REPLACE, m_window, _NET_WM_PID, XCB_ATOM_CARDINAL, 32, 1, value_list);
}
m_log.trace("bar: Create pixmap");
{
m_connection.create_pixmap_checked(
m_visual->visual_id == m_screen->root_visual ? XCB_COPY_FROM_PARENT : 32, m_pixmap,
m_window, m_bar.width, m_bar.height);
}
m_log.trace("bar: Map window");
{
m_connection.flush();
m_connection.map_window_checked(m_window);
}
// }}}
// Restack window and put it above defined WM's root {{{
try {
auto wm_restack = m_conf.get<string>(bs, "wm-restack");
auto restacked = false;
if (wm_restack == "bspwm") {
restacked = bspwm_util::restack_above_root(m_connection, m_bar.monitor, m_window);
} else if (wm_restack == "i3" && m_bar.dock && ENABLE_I3) {
#if ENABLE_I3
restacked = i3_util::restack_above_root(m_connection, m_bar.monitor, m_window);
#endif
} else if (wm_restack == "i3" && !m_bar.dock) {
m_log.warn("Ignoring restack of i3 window (not needed when dock = false)");
wm_restack.clear();
} else {
m_log.warn("Ignoring unsupported wm-restack option '%s'", wm_restack);
wm_restack.clear();
}
if (restacked) {
m_log.info("Successfully restacked bar window");
} else if (!wm_restack.empty()) {
m_log.err("Failed to restack bar window");
}
} catch (const key_error& err) {
}
// }}}
// Create graphic contexts {{{
m_log.trace("bar: Create graphic contexts");
{
// clang-format off
vector<uint32_t> colors {
m_bar.background.value(),
m_bar.foreground.value(),
m_bar.linecolor.value(),
m_bar.linecolor.value(),
m_borders[border::TOP].color.value(),
m_borders[border::BOTTOM].color.value(),
m_borders[border::LEFT].color.value(),
m_borders[border::RIGHT].color.value(),
};
// clang-format on
for (int i = 1; i <= 8; i++) {
uint32_t mask = 0;
uint32_t value_list[32];
xcb_params_gc_t params;
XCB_AUX_ADD_PARAM(&mask, &params, foreground, colors[i - 1]);
XCB_AUX_ADD_PARAM(&mask, &params, graphics_exposures, 0);
xutils::pack_values(mask, &params, value_list);
m_gcontexts.emplace(gc(i), gcontext{m_connection, m_connection.generate_id()});
m_connection.create_gc_checked(m_gcontexts.at(gc(i)), m_pixmap, mask, value_list);
}
}
// }}}
// Load fonts {{{
auto fonts_loaded = false;
auto fontindex = 0;
auto fonts = m_conf.get_list<string>(bs, "font");
for (auto f : fonts) {
fontindex++;
vector<string> fd = string_util::split(f, ';');
string pattern{fd[0]};
int offset{0};
if (fd.size() > 1)
offset = std::stoi(fd[1], 0, 10);
if (m_fontmanager->load(pattern, fontindex, offset))
fonts_loaded = true;
else
m_log.warn("Unable to load font '%s'", fd[0]);
}
if (!fonts_loaded) {
m_log.warn("Loading fallback font");
if (!m_fontmanager->load("fixed"))
throw application_error("Unable to load fonts");
}
m_fontmanager->allocate_color(m_bar.foreground);
// }}}
// Set tray settings {{{
try {
auto tray_position = m_conf.get<string>(bs, "tray-position");
if (tray_position == "left")
m_tray.align = alignment::LEFT;
else if (tray_position == "right")
m_tray.align = alignment::RIGHT;
else
m_tray.align = alignment::NONE;
} catch (const key_error& err) {
m_tray.align = alignment::NONE;
}
if (m_tray.align != alignment::NONE) {
m_tray.background = m_bar.background.value();
m_tray.height = m_bar.height;
m_tray.height -= m_borders.at(border::BOTTOM).size;
m_tray.height -= m_borders.at(border::TOP).size;
if (m_tray.height % 2 != 0) {
m_tray.height--;
}
if (m_tray.height > 24) {
m_tray.spacing = (m_tray.height - 24) / 2;
m_tray.height = 24;
}
m_tray.width = m_tray.height;
m_tray.orig_y = m_bar.y + m_borders.at(border::TOP).size;
if (m_tray.align == alignment::RIGHT)
m_tray.orig_x = m_bar.x + m_bar.width - m_borders.at(border::RIGHT).size;
else
m_tray.orig_x = m_bar.x + m_borders.at(border::LEFT).size;
}
m_tray.sibling = m_window;
// }}}
// Connect signal handlers {{{
g_signals::parser::alignment_change.connect(this, &bar::on_alignment_change);
g_signals::parser::attribute_set.connect(this, &bar::on_attribute_set);
g_signals::parser::attribute_unset.connect(this, &bar::on_attribute_unset);
g_signals::parser::attribute_toggle.connect(this, &bar::on_attribute_toggle);
g_signals::parser::action_block_open.connect(this, &bar::on_action_block_open);
g_signals::parser::action_block_close.connect(this, &bar::on_action_block_close);
g_signals::parser::color_change.connect(this, &bar::on_color_change);
g_signals::parser::font_change.connect(this, &bar::on_font_change);
g_signals::parser::pixel_offset.connect(this, &bar::on_pixel_offset);
g_signals::parser::ascii_text_write.connect(this, &bar::draw_character);
g_signals::parser::unicode_text_write.connect(this, &bar::draw_character);
if (m_tray.align != alignment::NONE)
g_signals::tray::report_slotcount.connect(this, &bar::on_tray_report);
// }}}
m_connection.attach_sink(this, 1);
m_sinkattached = true;
m_connection.flush();
} //}}}
/**
* Parse input string and redraw the bar window
*
* @param data Input string
* @param force Unless true, do not parse unchanged data
*/
void parse(string data, bool force = false) { //{{{
std::lock_guard<threading_util::spin_lock> lck(m_lock);
{
if (data == m_prevdata && !force)
return;
m_prevdata = data;
// TODO: move to fontmanager
m_xftdraw = XftDrawCreate(xlib::get_display(), m_pixmap, xlib::get_visual(), m_colormap);
m_bar.align = alignment::LEFT;
m_xpos = m_borders[border::LEFT].size;
m_attributes = 0;
#if DEBUG and DRAW_CLICKABLE_AREA_HINTS
for (auto&& action : m_actions) {
m_connection.destroy_window(action.clickable_area);
}
#endif
m_actions.clear();
draw_background();
if (m_tray.align == alignment::LEFT && m_tray.slots)
m_xpos += ((m_tray.width + m_tray.spacing) * m_tray.slots) + m_tray.spacing;
try {
parser parser(m_bar);
parser(data);
} catch (const unrecognized_token& err) {
m_log.err("Unrecognized syntax token '%s'", err.what());
}
if (m_tray.align == alignment::RIGHT && m_tray.slots)
draw_shift(m_xpos, ((m_tray.width + m_tray.spacing) * m_tray.slots) + m_tray.spacing);
draw_border(border::ALL);
flush();
XftDrawDestroy(m_xftdraw);
}
} //}}}
/**
* Copy the contents of the pixmap's onto the bar window
*/
void flush() { //{{{
m_connection.copy_area(
m_pixmap, m_window, m_gcontexts.at(gc::FG), 0, 0, 0, 0, m_bar.width, m_bar.height);
m_connection.copy_area(
m_pixmap, m_window, m_gcontexts.at(gc::BT), 0, 0, 0, 0, m_bar.width, m_bar.height);
m_connection.copy_area(
m_pixmap, m_window, m_gcontexts.at(gc::BB), 0, 0, 0, 0, m_bar.width, m_bar.height);
m_connection.copy_area(
m_pixmap, m_window, m_gcontexts.at(gc::BL), 0, 0, 0, 0, m_bar.width, m_bar.height);
m_connection.copy_area(
m_pixmap, m_window, m_gcontexts.at(gc::BR), 0, 0, 0, 0, m_bar.width, m_bar.height);
#if DEBUG and DRAW_CLICKABLE_AREA_HINTS
map<alignment, int> hint_num{
{ {alignment::LEFT, 0},
{alignment::CENTER, 0},
{alignment::RIGHT, 0},
}};
#endif
for (auto&& action : m_actions) {
if (action.active) {
m_log.warn("Action block not closed");
m_log.warn("action.command = %s", action.command);
} else {
m_log.trace("bar: Action details");
m_log.trace("action.command = %s", action.command);
m_log.trace("action.button = %i", static_cast<int>(action.button));
m_log.trace("action.start_x = %i", action.start_x);
m_log.trace("action.end_x = %i", action.end_x);
#if DEBUG and DRAW_CLICKABLE_AREA_HINTS
m_log.info("Drawing clickable area hints");
hint_num[action.align]++;
auto x = action.start_x;
auto y = m_bar.y + hint_num[action.align]++ * DRAW_CLICKABLE_AREA_HINTS_OFFSET_Y;
auto w = action.end_x - action.start_x - 2;
auto h = m_bar.height - 2;
const uint32_t mask = XCB_CW_BORDER_PIXEL | XCB_CW_OVERRIDE_REDIRECT;
const uint32_t border_color = hint_num[action.align] % 2 ? 0xff0000 : 0x00ff00;
const uint32_t values[2]{border_color, true};
auto scr = m_connection.screen();
action.clickable_area = m_connection.generate_id();
m_connection.create_window_checked(scr->root_depth, action.clickable_area, scr->root, x, y,
w, h, 1, XCB_WINDOW_CLASS_INPUT_OUTPUT, scr->root_visual, mask, values);
m_connection.map_window_checked(action.clickable_area);
#else
m_log.trace("bar: Visual hints for clickable area's disabled");
#endif
}
}
} //}}}
/**
* Get the bar settings container
*/
const bar_settings settings() const { // {{{
return m_bar;
} // }}}
/**
* Get the tray settings container
*/
const tray_settings tray() const { // {{{
return m_tray;
} // }}}
/**
* Mouse button event handler
*/
void handle(const evt::button_press& evt) { // {{{
std::lock_guard<threading_util::spin_lock> lck(m_lock);
{
m_log.trace("bar: Received button press event: %i at pos(%i, %i)",
static_cast<int>(evt->detail), evt->event_x, evt->event_y);
mousebtn button = static_cast<mousebtn>(evt->detail);
for (auto&& action : m_actions) {
if (action.active) {
m_log.trace("bar: Ignoring action: unclosed)");
continue;
} else if (action.button != button) {
m_log.trace("bar: Ignoring action: button mismatch");
continue;
} else if (action.start_x > evt->event_x) {
m_log.trace(
"bar: Ignoring action: start_x(%i) > event_x(%i)", action.start_x, evt->event_x);
continue;
} else if (action.end_x < evt->event_x) {
m_log.trace("bar: Ignoring action: end_x(%i) < event_x(%i)", action.end_x, evt->event_x);
continue;
}
m_log.info("Found matching input area");
m_log.trace("action.command = %s", action.command);
m_log.trace("action.button = %i", static_cast<int>(action.button));
m_log.trace("action.start_x = %i", action.start_x);
m_log.trace("action.end_x = %i", action.end_x);
if (!g_signals::bar::action_click.empty())
g_signals::bar::action_click.emit(action.command);
else
m_log.warn("No signal handler's connected to 'action_click'");
return;
}
m_log.warn("No matching input area found");
}
} // }}}
/**
* Event handler for XCB_EXPOSE events
*/
void handle(const evt::expose& evt) { // {{{
if (evt->window != m_window)
return;
m_log.trace("bar: Received expose event");
flush();
} // }}}
/**
* Event handler for XCB_PROPERTY_NOTIFY events
*
* Used to emit events whenever the bar window's
* visibility gets changes. This allows us to toggle the
* state of the tray container even though the tray
* window restacking failed.
*
* This is used as a fallback for tedious WM's, like i3.
*
* Some might call it a dirty hack, others a crappy
* solution... I choose to call it a masterpiece! Plus
* it's not really any overhead worth talking about.
*/
void handle(const evt::property_notify& evt) { // {{{
if (evt->window == m_window && evt->atom == WM_STATE) {
if (g_signals::bar::visibility_change.empty()) {
return;
}
try {
auto attr = m_connection.get_window_attributes(m_window);
if (attr->map_state == XCB_MAP_STATE_VIEWABLE)
g_signals::bar::visibility_change.emit(true);
else if (attr->map_state == XCB_MAP_STATE_UNVIEWABLE)
g_signals::bar::visibility_change.emit(false);
else if (attr->map_state == XCB_MAP_STATE_UNMAPPED)
g_signals::bar::visibility_change.emit(false);
else
g_signals::bar::visibility_change.emit(true);
} catch (const std::exception& err) {
m_log.warn("Failed to emit bar window's visibility change event");
}
}
} // }}}
protected:
/**
* Handle alignment update
*/
void on_alignment_change(alignment align) { //{{{
if (align == m_bar.align)
return;
m_log.trace("bar: alignment_change(%i)", static_cast<int>(align));
m_bar.align = align;
if (align == alignment::LEFT) {
m_xpos = m_borders[border::LEFT].size;
} else if (align == alignment::RIGHT) {
m_xpos = m_borders[border::RIGHT].size;
} else {
m_xpos = 0;
}
} //}}}
/**
* Handle attribute on state
*/
void on_attribute_set(attribute attr) { //{{{
int val{static_cast<int>(attr)};
if ((m_attributes & val) != 0)
return;
m_log.trace("bar: attribute_set(%i)", val);
m_attributes |= val;
} //}}}
/**
* Handle attribute off state
*/
void on_attribute_unset(attribute attr) { //{{{
int val{static_cast<int>(attr)};
if ((m_attributes & val) == 0)
return;
m_log.trace("bar: attribute_unset(%i)", val);
m_attributes ^= val;
} //}}}
/**
* Handle attribute toggle state
*/
void on_attribute_toggle(attribute attr) { //{{{
int val{static_cast<int>(attr)};
m_log.trace("bar: attribute_toggle(%i)", val);
m_attributes ^= val;
} //}}}
/**
* Handle action block start
*/
void on_action_block_open(mousebtn btn, string cmd) { //{{{
if (btn == mousebtn::NONE)
btn = mousebtn::LEFT;
m_log.trace("bar: action_block_open(%i, %s)", static_cast<int>(btn), cmd);
action_block action;
action.active = true;
action.align = m_bar.align;
action.button = btn;
action.start_x = m_xpos;
action.command = string_util::replace_all(cmd, ":", "\\:");
m_actions.emplace_back(action);
} //}}}
/**
* Handle action block end
*/
void on_action_block_close(mousebtn btn) { //{{{
m_log.trace("bar: action_block_close(%i)", static_cast<int>(btn));
for (auto i = m_actions.size(); i > 0; i--) {
auto& action = m_actions[i - 1];
if (!action.active || action.button != btn)
continue;
action.active = false;
if (action.align == alignment::LEFT) {
action.end_x = m_xpos;
} else if (action.align == alignment::CENTER) {
int base_x = m_bar.width;
base_x -= m_borders[border::RIGHT].size;
base_x /= 2;
base_x += m_borders[border::LEFT].size;
int clickable_width = m_xpos - action.start_x;
action.start_x = base_x - clickable_width / 2 + action.start_x / 2;
action.end_x = action.start_x + clickable_width;
} else if (action.align == alignment::RIGHT) {
int base_x = m_bar.width - m_borders[border::RIGHT].size;
action.start_x = base_x - m_xpos + action.start_x;
action.end_x = base_x;
}
return;
}
} //}}}
/**
* Handle color change
*/
void on_color_change(gc gc_, color color_) { //{{{
m_log.trace(
"bar: color_change(%i, %s -> %s)", static_cast<int>(gc_), color_.hex(), color_.rgb());
const uint32_t value_list[32]{color_.value()};
m_connection.change_gc(m_gcontexts.at(gc_), XCB_GC_FOREGROUND, value_list);
if (gc_ == gc::FG)
m_fontmanager->allocate_color(color_);
} //}}}
/**
* Handle font change
*/
void on_font_change(int index) { //{{{
m_log.trace("bar: font_change(%i)", index);
m_fontmanager->set_preferred_font(index);
} //}}}
/**
* Handle pixel offsetting
*/
void on_pixel_offset(int px) { //{{{
m_log.trace("bar: pixel_offset(%i)", px);
draw_shift(m_xpos, px);
m_xpos += px;
} //}}}
/**
* Proess systray report
*/
void on_tray_report(uint16_t slots) { // {{{
if (m_tray.slots == slots)
return;
m_log.trace("bar: tray_report(%lu)", slots);
m_tray.slots = slots;
if (!m_prevdata.empty())
parse(m_prevdata, true);
} // }}}
/**
* Draw background onto the pixmap
*/
void draw_background() { //{{{
draw_util::fill(
m_connection, m_pixmap, m_gcontexts.at(gc::BG), 0, 0, m_bar.width, m_bar.height);
} //}}}
/**
* Draw borders onto the pixmap
*/
void draw_border(border border_) { //{{{
switch (border_) {
case border::NONE:
break;
case border::TOP:
if (m_borders[border::TOP].size > 0) {
draw_util::fill(m_connection, m_pixmap, m_gcontexts.at(gc::BT),
m_borders[border::LEFT].size, 0,
m_bar.width - m_borders[border::LEFT].size - m_borders[border::RIGHT].size,
m_borders[border::TOP].size);
}
break;
case border::BOTTOM:
if (m_borders[border::BOTTOM].size > 0) {
draw_util::fill(m_connection, m_pixmap, m_gcontexts.at(gc::BB),
m_borders[border::LEFT].size, m_bar.height - m_borders[border::BOTTOM].size,
m_bar.width - m_borders[border::LEFT].size - m_borders[border::RIGHT].size,
m_borders[border::BOTTOM].size);
}
break;
case border::LEFT:
if (m_borders[border::LEFT].size > 0) {
draw_util::fill(m_connection, m_pixmap, m_gcontexts.at(gc::BL), 0, 0,
m_borders[border::LEFT].size, m_bar.height);
}
break;
case border::RIGHT:
if (m_borders[border::RIGHT].size > 0) {
draw_util::fill(m_connection, m_pixmap, m_gcontexts.at(gc::BR),
m_bar.width - m_borders[border::RIGHT].size, 0, m_borders[border::RIGHT].size,
m_bar.height);
}
break;
case border::ALL:
draw_border(border::TOP);
draw_border(border::BOTTOM);
draw_border(border::LEFT);
draw_border(border::RIGHT);
break;
}
} //}}}
/**
* Draw over- and underline onto the pixmap
*/
void draw_lines(int x, int w) { //{{{
if (!m_bar.lineheight)
return;
if (m_attributes & static_cast<int>(attribute::o))
draw_util::fill(m_connection, m_pixmap, m_gcontexts.at(gc::OL), x,
m_borders[border::TOP].size, w, m_bar.lineheight);
if (m_attributes & static_cast<int>(attribute::u))
draw_util::fill(m_connection, m_pixmap, m_gcontexts.at(gc::UL), x,
m_bar.height - m_borders[border::BOTTOM].size - m_bar.lineheight, w, m_bar.lineheight);
} //}}}
/**
* Shift the contents of the pixmap horizontally
*/
int draw_shift(int x, int chr_width) { //{{{
int delta = chr_width;
if (m_bar.align == alignment::CENTER) {
int base_x = m_bar.width;
base_x -= m_borders[border::RIGHT].size;
base_x /= 2;
base_x += m_borders[border::LEFT].size;
m_connection.copy_area(m_pixmap, m_pixmap, m_gcontexts.at(gc::FG), base_x - x / 2, 0,
base_x - (x + chr_width) / 2, 0, x, m_bar.height);
x = base_x - (x + chr_width) / 2 + x;
delta /= 2;
} else if (m_bar.align == alignment::RIGHT) {
m_connection.copy_area(m_pixmap, m_pixmap, m_gcontexts.at(gc::FG), m_bar.width - x, 0,
m_bar.width - x - chr_width, 0, x, m_bar.height);
x = m_bar.width - chr_width - m_borders[border::RIGHT].size;
}
draw_util::fill(m_connection, m_pixmap, m_gcontexts.at(gc::BG), x, 0, chr_width, m_bar.height);
// Translate pos of clickable areas
if (m_bar.align != alignment::LEFT)
for (auto&& action : m_actions) {
if (action.active || action.align != m_bar.align)
continue;
action.start_x -= delta;
action.end_x -= delta;
}
return x;
} //}}}
/**
* Draw text contents
*/
void draw_character(uint16_t character) { // {{{
// TODO: cache
auto& font = m_fontmanager->match_char(character);
if (!font) {
m_log.warn("No suitable font found for character at index %i", character);
return;
}
if (font->ptr && font->ptr != m_gcfont) {
m_gcfont = font->ptr;
m_fontmanager->set_gcontext_font(m_gcontexts.at(gc::FG), m_gcfont);
}
// TODO: cache
auto chr_width = m_fontmanager->char_width(font, character);
// Avoid odd glyph width's for center-aligned text
// since it breaks the positioning of clickable area's
if (m_bar.align == alignment::CENTER && chr_width % 2)
chr_width++;
auto x = draw_shift(m_xpos, chr_width);
auto y = m_bar.vertical_mid + font->height / 2 - font->descent + font->offset_y;
// m_log.trace("Draw char(%c, width: %i) at pos(%i,%i)", character, chr_width, x, y);
if (font->xft != nullptr) {
auto color = m_fontmanager->xftcolor();
XftDrawString16(m_xftdraw, &color, font->xft, x, y, &character, 1);
} else {
character = (character >> 8) | (character << 8);
draw_util::xcb_poly_text_16_patched(
m_connection, m_pixmap, m_gcontexts.at(gc::FG), x, y, 1, &character);
}
draw_lines(x, chr_width);
m_xpos += chr_width;
} // }}}
private:
connection& m_connection;
const config& m_conf;
const logger& m_log;
unique_ptr<fontmanager> m_fontmanager;
threading_util::spin_lock m_lock;
xcb_screen_t* m_screen;
xcb_visualtype_t* m_visual;
window m_window{m_connection};
colormap m_colormap{m_connection, m_connection.generate_id()};
pixmap m_pixmap{m_connection, m_connection.generate_id()};
bar_settings m_bar;
tray_settings m_tray;
map<border, border_settings> m_borders;
map<gc, gcontext> m_gcontexts;
vector<action_block> m_actions;
stateflag m_sinkattached{false};
string m_prevdata;
int m_xpos{0};
int m_attributes{0};
xcb_font_t m_gcfont{0};
XftDraw* m_xftdraw;
};
LEMONBUDDY_NS_END
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