Merge pull request #11773 from cbjeukendrup/gp_recent_file_placeholder

Recent Scores: Add Guitar Pro file icon and fix pixelated icons on low-res screens

src/project/project.qrc

@@ -45,6 +45,7 @@
         <file>qml/MuseScore/Project/internal/ProjectPropertiesBottomPanel.qml</file>
         <file>qml/MuseScore/Project/internal/ProjectPropertiesView.qml</file>
         <file>qml/MuseScore/Project/internal/PropertyItem.qml</file>
+        <file>resources/Placeholder_GP.png</file>
         <file>resources/Placeholder_MIDI.png</file>
         <file>resources/Placeholder_MXML.png</file>
         <file>resources/Placeholder_Other.png</file>

src/project/qml/MuseScore/Project/internal/ScoreItem.qml

@@ -233,6 +233,14 @@ FocusScope {
 
                 source: {
                     switch (root.suffix) {
+                    case "gtp":
+                    case "gp3":
+                    case "gp4":
+                    case "gp5":
+                    case "gpx":
+                    case "gp":
+                    case "ptb":
+                        return "qrc:/resources/Placeholder_GP.png"
                     case "mid":
                     case "midi":
                     case "kar":
@@ -247,6 +255,9 @@ FocusScope {
                 }
 
                 fillMode: Image.PreserveAspectFit
+
+                // Prevent image from looking pixelated on low-res screens
+                mipmap: true
             }
         }
     }