From 5bc661aecabba8b570d2261c9bbf52aad9decc0c Mon Sep 17 00:00:00 2001
From: Jordan Woyak <jordan.woyak@gmail.com>
Date: Wed, 14 May 2025 22:23:21 -0500
Subject: [PATCH] DolphinQt/AudioPane: Fix Volume QGroupBox title uglyness on
 Windows and inconsistent percent-sign spacing.

---
 Source/Core/DolphinQt/Settings/AudioPane.cpp | 36 +++++++++++++-------
 1 file changed, 24 insertions(+), 12 deletions(-)

diff --git a/Source/Core/DolphinQt/Settings/AudioPane.cpp b/Source/Core/DolphinQt/Settings/AudioPane.cpp
index fe8866ddd9..4d3ee8ba85 100644
--- a/Source/Core/DolphinQt/Settings/AudioPane.cpp
+++ b/Source/Core/DolphinQt/Settings/AudioPane.cpp
@@ -33,6 +33,11 @@
 #include "DolphinQt/Config/SettingsWindow.h"
 #include "DolphinQt/Settings.h"
 
+static QString GetVolumeLabelText(int volume_level)
+{
+  return QWidget::tr("%1%").arg(volume_level);
+}
+
 AudioPane::AudioPane()
 {
   CheckNeedForLatencyControl();
@@ -67,16 +72,26 @@ void AudioPane::CreateWidgets()
   dsp_layout->addWidget(m_dsp_combo, Qt::AlignLeft);
 
   auto* volume_box = new QGroupBox(tr("Volume"));
-  auto* volume_layout = new QVBoxLayout;
+  auto* volume_layout = new QVBoxLayout{volume_box};
+
   m_volume_slider = new ConfigSlider(0, 100, Config::MAIN_AUDIO_VOLUME);
-  m_volume_indicator = new QLabel(tr("%1 %").arg(m_volume_slider->value()));
-
-  volume_box->setLayout(volume_layout);
-
   m_volume_slider->setOrientation(Qt::Vertical);
 
+  // Volume indicator text label.
+  m_volume_indicator = new QLabel;
   m_volume_indicator->setAlignment(Qt::AlignVCenter | Qt::AlignHCenter);
-  m_volume_indicator->setFixedWidth(QFontMetrics(font()).boundingRect(volume_box->title()).width());
+  auto update_volume_label = [this]() {
+    m_volume_indicator->setText(GetVolumeLabelText(m_volume_slider->value()));
+  };
+  update_volume_label();
+  connect(m_volume_slider, &QSlider::valueChanged, this, std::move(update_volume_label));
+
+  const QFontMetrics font_metrics{font()};
+  const int label_width = font_metrics.boundingRect(GetVolumeLabelText(100)).width();
+  // Ensure the label is at least as wide as the QGroupBox title.
+  // This prevents [-Volume] title uglyness on Windows.
+  const int title_width = font_metrics.boundingRect(volume_box->title()).width();
+  m_volume_indicator->setFixedWidth(std::max(label_width, title_width));
 
   volume_layout->addWidget(m_volume_slider, 0, Qt::AlignHCenter);
   volume_layout->addWidget(m_volume_indicator, 0, Qt::AlignHCenter);
@@ -92,8 +107,7 @@ void AudioPane::CreateWidgets()
     translated_backends.reserve(backends.size());
     for (const std::string& backend : backends)
     {
-      translated_backends.push_back(
-          std::make_pair(tr(backend.c_str()), QString::fromStdString(backend)));
+      translated_backends.emplace_back(tr(backend.c_str()), QString::fromStdString(backend));
     }
     m_backend_combo = new ConfigStringChoice(translated_backends, Config::MAIN_AUDIO_BACKEND);
   }
@@ -203,10 +217,8 @@ void AudioPane::ConnectWidgets()
   connect(m_backend_combo, &QComboBox::currentIndexChanged, this, &AudioPane::OnBackendChanged);
   connect(m_dolby_pro_logic, &ConfigBool::toggled, this, &AudioPane::OnDspChanged);
   connect(m_dsp_combo, &ConfigComplexChoice::currentIndexChanged, this, &AudioPane::OnDspChanged);
-  connect(m_volume_slider, &QSlider::valueChanged, this, [this](int value) {
-    m_volume_indicator->setText(tr("%1%").arg(value));
-    AudioCommon::UpdateSoundStream(Core::System::GetInstance());
-  });
+  connect(m_volume_slider, &QSlider::valueChanged, this,
+          [] { AudioCommon::UpdateSoundStream(Core::System::GetInstance()); });
 
   if (m_latency_control_supported)
   {