From 362e167239133b014d3d187932d2a48a5aa5131d Mon Sep 17 00:00:00 2001
From: Timothy Flynn <trflynn89@pm.me>
Date: Wed, 2 Feb 2022 17:15:17 -0500
Subject: [PATCH] ClockSettings: Display a text bubble with extra time zone
 information

---
 .../Applications/ClockSettings/CMakeLists.txt |  3 +-
 .../ClockSettings/ClockSettingsWidget.cpp     | 31 +++++++++++++++++++
 .../ClockSettings/ClockSettingsWidget.h       |  1 +
 3 files changed, 34 insertions(+), 1 deletion(-)

diff --git a/Userland/Applications/ClockSettings/CMakeLists.txt b/Userland/Applications/ClockSettings/CMakeLists.txt
index 8979e0cb1de..94186a3efb6 100644
--- a/Userland/Applications/ClockSettings/CMakeLists.txt
+++ b/Userland/Applications/ClockSettings/CMakeLists.txt
@@ -14,4 +14,5 @@ set(SOURCES
 )
 
 serenity_app(ClockSettings ICON app-analog-clock) # FIXME: Create a ClockSettings icon.
-target_link_libraries(ClockSettings LibGUI LibMain)
+target_link_libraries(ClockSettings LibGUI LibMain LibUnicode)
+link_with_unicode_data(ClockSettings)
diff --git a/Userland/Applications/ClockSettings/ClockSettingsWidget.cpp b/Userland/Applications/ClockSettings/ClockSettingsWidget.cpp
index e65c5d08d70..98c86b18d84 100644
--- a/Userland/Applications/ClockSettings/ClockSettingsWidget.cpp
+++ b/Userland/Applications/ClockSettings/ClockSettingsWidget.cpp
@@ -5,6 +5,7 @@
  */
 
 #include "ClockSettingsWidget.h"
+#include <AK/Time.h>
 #include <Applications/ClockSettings/ClockSettingsWidgetGML.h>
 #include <LibGUI/ComboBox.h>
 #include <LibGUI/Event.h>
@@ -16,6 +17,8 @@
 #include <LibGUI/Painter.h>
 #include <LibGfx/Palette.h>
 #include <LibTimeZone/TimeZone.h>
+#include <LibUnicode/DateTimeFormat.h>
+#include <LibUnicode/Locale.h>
 #include <math.h>
 #include <spawn.h>
 #include <unistd.h>
@@ -31,6 +34,11 @@ static constexpr auto TAU = M_PIf32 * 2.0f;
 static constexpr auto TIME_ZONE_MAP_NORTHERN_TRIM = 78;
 static constexpr auto TIME_ZONE_MAP_SOUTHERN_TRIM = 50;
 
+static constexpr auto TIME_ZONE_TEXT_WIDTH = 210;
+static constexpr auto TIME_ZONE_TEXT_HEIGHT = 40;
+static constexpr auto TIME_ZONE_TEXT_PADDING = 5;
+static constexpr auto TIME_ZONE_TEXT_COLOR = Gfx::Color::from_rgb(0xeaf688);
+
 ClockSettingsWidget::ClockSettingsWidget()
 {
     load_from_gml(clock_settings_widget_gml);
@@ -73,6 +81,21 @@ void ClockSettingsWidget::second_paint_event(GUI::PaintEvent& event)
     auto point = m_time_zone_location->to_type<int>().translated(x, y);
     point.translate_by(-m_time_zone_marker->width() / 2, -m_time_zone_marker->height() / 2);
     painter.blit(point, *m_time_zone_marker, rect());
+
+    point = m_time_zone_location->to_type<int>().translated(x, y);
+    point.translate_by(0, -TIME_ZONE_TEXT_HEIGHT / 2);
+
+    if (point.x() <= (m_time_zone_map->width() / 2))
+        point.translate_by(m_time_zone_marker->width() / 2 + TIME_ZONE_TEXT_PADDING, 0);
+    else
+        point.translate_by(-m_time_zone_marker->width() / 2 - TIME_ZONE_TEXT_PADDING - TIME_ZONE_TEXT_WIDTH, 0);
+
+    auto text_area = Gfx::IntRect { point.x(), point.y(), TIME_ZONE_TEXT_WIDTH, TIME_ZONE_TEXT_HEIGHT };
+    painter.draw_rect(text_area, palette().active_window_border1());
+
+    text_area.shrink(2, 2);
+    painter.fill_rect(text_area, TIME_ZONE_TEXT_COLOR);
+    painter.draw_text(text_area, m_time_zone_text, Gfx::TextAlignment::Center);
 }
 
 void ClockSettingsWidget::reset_default_values()
@@ -97,6 +120,14 @@ void ClockSettingsWidget::apply_settings()
 void ClockSettingsWidget::set_time_zone_location()
 {
     m_time_zone_location = compute_time_zone_location();
+
+    auto locale = Unicode::default_locale();
+    auto now = AK::Time::now_realtime();
+
+    auto name = Unicode::format_time_zone(locale, m_time_zone, Unicode::CalendarPatternStyle::Long, now);
+    auto offset = Unicode::format_time_zone(locale, m_time_zone, Unicode::CalendarPatternStyle::LongOffset, now);
+
+    m_time_zone_text = String::formatted("{}\n({})", name, offset);
 }
 
 // https://en.wikipedia.org/wiki/Mercator_projection#Derivation
diff --git a/Userland/Applications/ClockSettings/ClockSettingsWidget.h b/Userland/Applications/ClockSettings/ClockSettingsWidget.h
index 0605a0dbf84..b2394a783aa 100644
--- a/Userland/Applications/ClockSettings/ClockSettingsWidget.h
+++ b/Userland/Applications/ClockSettings/ClockSettingsWidget.h
@@ -34,4 +34,5 @@ private:
     RefPtr<Gfx::Bitmap> m_time_zone_marker;
 
     Optional<Gfx::FloatPoint> m_time_zone_location;
+    String m_time_zone_text;
 };