Subclass delete button rather than use QSS

Editor/SoundMacroEditor.cpp

@@ -126,6 +126,26 @@ FieldSoundMacroStep::FieldSoundMacroStep(FieldProjectNode* macroField, QWidget*
     setLayout(layout);
 }
 
+void SoundMacroDeleteButton::enterEvent(QEvent* event)
+{
+    setIcon(QIcon(QStringLiteral(":/icons/IconSoundMacroDeleteHovered.svg")));
+}
+
+void SoundMacroDeleteButton::leaveEvent(QEvent* event)
+{
+    setIcon(QIcon(QStringLiteral(":/icons/IconSoundMacroDelete.svg")));
+}
+
+SoundMacroDeleteButton::SoundMacroDeleteButton(QWidget* parent)
+: QPushButton(parent)
+{
+    setVisible(false);
+    setFixedSize(21, 21);
+    setFlat(true);
+    setToolTip(tr("Delete this SoundMacro"));
+    setIcon(QIcon(QStringLiteral(":/icons/IconSoundMacroDelete.svg")));
+}
+
 CommandWidget::CommandWidget(amuse::SoundMacro::ICmd* cmd, amuse::SoundMacro::CmdOp op, SoundMacroListing* listing)
 : QWidget(nullptr), m_cmd(cmd), m_introspection(amuse::SoundMacro::GetCmdIntrospection(op))
 {
@@ -157,17 +177,7 @@ CommandWidget::CommandWidget(amuse::SoundMacro::ICmd* cmd, amuse::SoundMacro::Cm
     headLayout->addWidget(&m_titleLabel);
     if (op != amuse::SoundMacro::CmdOp::End)
     {
-        m_deleteButton.setFixedSize(21, 21);
+        m_deleteButton.setVisible(true);
-        m_deleteButton.setStyleSheet("QPushButton {\n"
-                                     "    background-image: url(\":/icons/IconSoundMacroDelete.svg\");\n"
-                                     "    background-repeat: no-repeat;\n"
-                                     "}\n"
-                                     "QPushButton:hover {\n"
-                                     "    background-image: url(\":/icons/IconSoundMacroDeleteHovered.svg\");\n"
-                                     "    background-repeat: no-repeat;\n"
-                                     "}");
-        m_deleteButton.setFlat(true);
-        m_deleteButton.setToolTip(tr("Delete this SoundMacro"));
         connect(&m_deleteButton, SIGNAL(clicked(bool)), this, SLOT(deleteClicked()));
         headLayout->addWidget(&m_deleteButton);
     }

Editor/SoundMacroEditor.hpp

@@ -78,13 +78,22 @@ public:
     void cancel();
 };
 
+class SoundMacroDeleteButton : public QPushButton
+{
+    Q_OBJECT
+public:
+    explicit SoundMacroDeleteButton(QWidget* parent = Q_NULLPTR);
+    void enterEvent(QEvent* event);
+    void leaveEvent(QEvent* event);
+};
+
 class CommandWidget : public QWidget
 {
     Q_OBJECT
     friend class SoundMacroListing;
     QFont m_numberFont;
     QLabel m_titleLabel;
-    QPushButton m_deleteButton;
+    SoundMacroDeleteButton m_deleteButton;
     QStaticText m_numberText;
     int m_index = -1;
     amuse::SoundMacro::ICmd* m_cmd;

Editor/resources/lang_de.ts

@@ -1,14 +1,6 @@
 <?xml version="1.0" encoding="utf-8"?>
 <!DOCTYPE TS>
 <TS version="2.1" language="de_DE">
-<context>
-    <name>CommandWidget</name>
-    <message>
-        <location filename="../SoundMacroEditor.cpp" line="+170"/>
-        <source>Delete this SoundMacro</source>
-        <translation type="unfinished"></translation>
-    </message>
-</context>
 <context>
     <name>MainWindow</name>
     <message>
@@ -437,7 +429,7 @@
 <context>
     <name>QUndoStack</name>
     <message>
-        <location filename="../SoundMacroEditor.cpp" line="+162"/>
+        <location filename="../SoundMacroEditor.cpp" line="+342"/>
         <source>Change %1</source>
         <translation type="unfinished"></translation>
     </message>
@@ -531,6 +523,14 @@
         <translation>Befehle zum Steuern der Lautstärke der Stimme</translation>
     </message>
 </context>
+<context>
+    <name>SoundMacroDeleteButton</name>
+    <message>
+        <location line="-847"/>
+        <source>Delete this SoundMacro</source>
+        <translation type="unfinished"></translation>
+    </message>
+</context>
 <context>
     <name>StatusBarWidget</name>
     <message>
@@ -542,7 +542,7 @@
 <context>
     <name>TargetButton</name>
     <message>
-        <location filename="../SoundMacroEditor.cpp" line="-955"/>
+        <location filename="../SoundMacroEditor.cpp" line="-118"/>
         <source>Set step with target click</source>
         <translation type="unfinished"></translation>
     </message>