DynamicPlaylistControls: Make background follow system colors

Fixes #1483

data/data.qrc

@@ -45,5 +45,6 @@
         <file>mood/sample.mood</file>
         <file>text/ghosts.txt</file>
         <file>pictures/sidebar-background.png</file>
+        <file>style/dynamicplaylistcontrols.css</file>
     </qresource>
 </RCC>

data/style/dynamicplaylistcontrols.css

@@ -0,0 +1,13 @@
+#container {
+  background: %background;
+  border-radius: 10px;
+  border: 1px solid rgba(200, 200, 200, 75%);
+}
+
+#label1 {
+  font-weight: bold;
+}
+
+#label2 {
+  font-size: 7.5pt;
+}

src/playlist/dynamicplaylistcontrols.cpp

@@ -1,20 +1,31 @@
-/* This file is part of Clementine.
+/*
-   Copyright 2010, David Sansome <me@davidsansome.com>
+ * Strawberry Music Player
-
+ * This file was part of Clementine.
-   Clementine is free software: you can redistribute it and/or modify
+ * Copyright 2010, David Sansome <me@davidsansome.com>
-   it under the terms of the GNU General Public License as published by
+ * Copyright 2018-2024, Jonas Kvinge <jonas@jkvinge.net>
-   the Free Software Foundation, either version 3 of the License, or
+ *
-   (at your option) any later version.
+ * Strawberry is free software: you can redistribute it and/or modify
-
+ * it under the terms of the GNU General Public License as published by
-   Clementine is distributed in the hope that it will be useful,
+ * the Free Software Foundation, either version 3 of the License, or
-   but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * (at your option) any later version.
-   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *
-   GNU General Public License for more details.
+ * Strawberry is distributed in the hope that it will be useful,
-
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
-   You should have received a copy of the GNU General Public License
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-   along with Clementine.  If not, see <http://www.gnu.org/licenses/>.
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with Strawberry.  If not, see <http://www.gnu.org/licenses/>.
+ *
  */
 
+#include <QString>
+#include <QIODevice>
+#include <QFile>
+#include <QPalette>
+
+#include "core/logging.h"
+
 #include "dynamicplaylistcontrols.h"
 #include "ui_dynamicplaylistcontrols.h"
 
@@ -28,6 +39,16 @@ DynamicPlaylistControls::DynamicPlaylistControls(QWidget *parent)
   QObject::connect(ui_->repopulate, &QPushButton::clicked, this, &DynamicPlaylistControls::Repopulate);
   QObject::connect(ui_->off, &QPushButton::clicked, this, &DynamicPlaylistControls::TurnOff);
 
+  QFile stylesheet_file(QStringLiteral(":/style/dynamicplaylistcontrols.css"));
+  if (stylesheet_file.open(QIODevice::ReadOnly)) {
+    QString stylesheet = QString::fromLatin1(stylesheet_file.readAll());
+    stylesheet_file.close();
+    QColor color = palette().color(QPalette::Light);
+    color.setAlpha(50);
+    stylesheet.replace(QLatin1String("%background"), QStringLiteral("rgba(%1, %2, %3, %4%5)").arg(QString::number(color.red()), QString::number(color.green()), QString::number(color.blue()), QString::number(color.alpha())).arg(QLatin1Char('%')));
+    setStyleSheet(stylesheet);
+  }
+
 }
 
 DynamicPlaylistControls::~DynamicPlaylistControls() { delete ui_; }

src/playlist/dynamicplaylistcontrols.h

@@ -1,18 +1,22 @@
-/* This file is part of Clementine.
+/*
-   Copyright 2010, David Sansome <me@davidsansome.com>
+ * Strawberry Music Player
-
+ * This file was part of Clementine.
-   Clementine is free software: you can redistribute it and/or modify
+ * Copyright 2010, David Sansome <me@davidsansome.com>
-   it under the terms of the GNU General Public License as published by
+ * Copyright 2018-2024, Jonas Kvinge <jonas@jkvinge.net>
-   the Free Software Foundation, either version 3 of the License, or
+ *
-   (at your option) any later version.
+ * Strawberry is free software: you can redistribute it and/or modify
-
+ * it under the terms of the GNU General Public License as published by
-   Clementine is distributed in the hope that it will be useful,
+ * the Free Software Foundation, either version 3 of the License, or
-   but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * (at your option) any later version.
-   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *
-   GNU General Public License for more details.
+ * Strawberry is distributed in the hope that it will be useful,
-
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
-   You should have received a copy of the GNU General Public License
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-   along with Clementine.  If not, see <http://www.gnu.org/licenses/>.
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with Strawberry.  If not, see <http://www.gnu.org/licenses/>.
+ *
  */
 
 #ifndef DYNAMICPLAYLISTCONTROLS_H

src/playlist/dynamicplaylistcontrols.ui

@@ -10,21 +10,6 @@
     <height>54</height>
    </rect>
   </property>
-  <property name="styleSheet">
-   <string notr="true">#container {
-    background: rgba(200, 200, 200, 50%);
-    border-radius: 10px;
-    border: 1px solid rgba(200, 200, 200, 75%);
-}
-
-#label1 {
-  font-weight: bold;
-}
-
-#label2 {
-  font-size: 7.5pt;
-}</string>
-  </property>
   <layout class="QVBoxLayout" name="layout_dynamic_playlist_controls">
    <property name="leftMargin">
     <number>0</number>
@@ -41,10 +26,10 @@
    <item>
     <widget class="QFrame" name="container">
      <property name="frameShape">
-      <enum>QFrame::StyledPanel</enum>
+      <enum>QFrame::Shape::StyledPanel</enum>
      </property>
      <property name="frameShadow">
-      <enum>QFrame::Raised</enum>
+      <enum>QFrame::Shadow::Raised</enum>
      </property>
      <layout class="QHBoxLayout" name="layout_container">
       <item>