Merge pull request #3369 from UrbanBobek/runtime-zoom

Implement user defined runtime zoom factor

Author: kasemir

app/display/runtime/src/main/java/org/csstudio/display/builder/runtime/Preferences.java

@@ -33,6 +33,8 @@ public class Preferences
     @Preference public static String probe_display;
     /** Preference setting */
     public static final List<TextPatch> pv_name_patches = new ArrayList<>();
+    /** Preference setting */
+    @Preference public static int default_zoom_factor;
 
     static
     {

app/display/runtime/src/main/java/org/csstudio/display/builder/runtime/app/ZoomAction.java

@@ -8,6 +8,7 @@
 package org.csstudio.display.builder.runtime.app;
 
 import org.csstudio.display.builder.representation.javafx.JFXRepresentation;
+import org.csstudio.display.builder.runtime.Preferences;
 
 import javafx.application.Platform;
 import javafx.scene.control.ComboBox;
@@ -33,6 +34,15 @@ public ZoomAction(final DisplayRuntimeInstance instance)
             getEditor().setText(txt);
         });
         setOnAction(event -> zoom(instance.getRepresentation()));
+
+        // Apply default zoom factor from settings.ini
+        Platform.runLater(() ->
+        {
+            String zoom = String.format("%d %%", Preferences.default_zoom_factor);
+            setValue(zoom);
+            // Invoke zoom changed handler
+            getOnAction().handle(null);
+        });
     }
 
     private void zoom(final JFXRepresentation representation)

app/display/runtime/src/main/resources/display_runtime_preferences.properties

@@ -46,3 +46,6 @@ update_throttle=250
 # When left empty, the "Probe Display"
 # context menu entry is disabled.
 probe_display=examples:/probe.bob
+
+# Default zoom factor (percentage) of display runtime window
+default_zoom_factor=100