v2.45 Maintain a list of REDUCE panels and use it to update all REDUCE panels when the colour choices are saved, making the colour choices global.

Author: fjwright

docs/UserGuide.html

@@ -630,14 +630,13 @@ <h2 id="ViewMenu">The View Menu</h2>
     <h3>Font Size...</h3>
     <p>This displays a dialogue that allows you to change the font
     size used in the <em>Input/Output Display</em> and <em>Input
-    Editor</em> panes.  It applies to each REDUCE panel independently.
+    Editor</em> panes.  Font size applies to each REDUCE panel
+    independently.
     </p>
     <h3>Font Colours...</h3>
     <p>This displays a dialogue that allows you to change the colours
-      used in the <em>Input/Output Display</em> pane.  Currently, it
-      applies to the REDUCE panel selected when you click on
-      the <em>Save</em> button (but this is not consistent with other
-      options and may change in a future release).
+      used in the <em>Input/Output Display</em> pane.  Font colours
+      apply to all REDUCE panels together.
     </p>
     <p>The colours that you can select are the foreground text colours
       for algebraic and symbolic mode input and output, and the
@@ -660,18 +659,20 @@ <h3>Font Colours...</h3>
       unless you click on the <em>Save</em> button.
     </p>
     <h3>Bold Prompts</h3>
-    <p>Selecting this item causes Run-REDUCE to embolden the
-    display of all input prompts.  It applies to each REDUCE panel independently.
+    <p>Selecting this item causes Run-REDUCE to embolden the display
+    of all input prompts.  Bold prompts apply to each REDUCE panel
+    independently.
     </p>
     <h3>I/O Colouring</h3>
     <p>Selecting this item causes Run-REDUCE to colour the text in
-    the <em>Input/Output Display</em> pane.  The colouring depends on
-    REDUCE's current input mode: by default, algebraic-mode prompts
-    and input are red, algebraic-mode output is blue, symbolic-mode
-    prompts and input are green, symbolic-mode output is brown.
-    Echoed file input is not coloured.  By default, Run-REDUCE
-    highlights warnings and errors with quarter-opaque orange and red
-    background colours.
+    the <em>Input/Output Display</em> pane.  I/O colouring applies to
+    each REDUCE panel independently (although the colour choices apply
+    to all REDUCE panels together).  The colouring depends on REDUCE's
+    current input mode: by default, algebraic-mode prompts and input
+    are red, algebraic-mode output is blue, symbolic-mode prompts and
+    input are green, symbolic-mode output is brown.  Echoed file input
+    is not coloured.  By default, Run-REDUCE highlights warnings and
+    errors with quarter-opaque orange and red background colours.
     </p>
     <p>Note that turning I/O colouring on does not fully take effect
     until the next input prompt.  Turning I/O colouring off takes
@@ -685,15 +686,15 @@ <h3>I/O Colouring</h3>
     <h3>Typeset Maths</h3>
     <p>Selecting this item causes Run-REDUCE to display algebraic-mode
       mathematical output more-or-less as it would be typeset, and
-      centred horizontally.  It applies to each REDUCE panel
-      independently.  Output display will be significantly faster when
-      Typeset Maths is turned off.  <strong>WARNINGS:</strong> Typeset
-      Maths is currently experimental and line breaking is somewhat
-      arbitrary.  The display may be incorrect in some cases,
-      e.g. with unusual switch settings such as <em>on list</em>.  If
-      any LaTeX markup appears (coloured red) in the output then
-      please let me know!  <em>Save Session Log...</em> outputs
-      typeset maths using LaTeX markup.
+      centred horizontally.  Typeset maths applies to each REDUCE
+      panel independently.  Output display will be significantly
+      faster when Typeset Maths is turned
+      off.  <strong>WARNINGS:</strong> Typeset Maths is currently
+      experimental and line breaking is somewhat arbitrary.  The
+      display may be incorrect in some cases, e.g. with unusual switch
+      settings such as <em>on list</em>.  If any LaTeX markup appears
+      (coloured red) in the output then please let me know!  <em>Save
+      Session Log...</em> outputs typeset maths using LaTeX markup.
     </p>
     <h3>Single Pane Display</h3>
     <p>Selecting this causes Run-REDUCE to display the selected

src/fjwright/runreduce/REDUCEConfiguration.java

@@ -121,7 +121,7 @@ class FontColors {
      * Save colours as preferences.
      */
     static void save() {
-        RunREDUCE.reducePanel.updateFontColours();
+        for (var reducePanel : RunREDUCE.reducePanelList) reducePanel.updateFontColours();
         Preferences prefs = RRPreferences.prefs.node(FONT_COLORS);
         prefs.put(ALGEBRAIC_INPUT, algebraicInput);
         prefs.put(SYMBOLIC_INPUT, symbolicInput);

src/fjwright/runreduce/RunREDUCE.java

@@ -28,7 +28,9 @@
 import javafx.stage.Screen;
 import javafx.stage.Stage;
 
+import java.util.ArrayList;
 import java.util.Arrays;
+import java.util.List;
 
 /**
  * This is the main class that sets up and runs the application.
@@ -40,6 +42,7 @@ public class RunREDUCE extends Application {
     static TabPane tabPane;
     static int tabLabelNumber = 1;
     public static REDUCEPanel reducePanel; // the REDUCEPanel with current focus
+    static List<REDUCEPanel> reducePanelList = new ArrayList<>();
 
     // Set the main window to 2/3 the linear dimension of the screen initially:
     static final Rectangle2D primaryScreenBounds = Screen.getPrimary().getVisualBounds();
@@ -84,6 +87,7 @@ public void start(Stage primaryStage) throws Exception {
         if (debugPlatform) System.err.println("reduceFont: " + reduceFont.toString());
 
         reducePanel = new REDUCEPanel();
+        reducePanelList.add(reducePanel);
         switch (RRPreferences.displayPane) {
             case SINGLE:
                 runREDUCEFrame.frame.setCenter(reducePanel);
@@ -101,6 +105,7 @@ public void start(Stage primaryStage) throws Exception {
     static void useSplitPane(boolean enable, boolean startup) {
         if (enable) {
             REDUCEPanel reducePanel2 = new REDUCEPanel();
+            reducePanelList.add(reducePanel2);
             splitPane = new SplitPane(reducePanel, reducePanel2);
             splitPane.setDividerPositions(0.5);
             runREDUCEFrame.frame.setCenter(splitPane);
@@ -116,6 +121,7 @@ static void useSplitPane(boolean enable, boolean startup) {
                 reducePanel.inputTextArea.requestFocus();
             }
         } else { // Revert to single pane.
+            reducePanelList.removeIf(x -> x != reducePanel);
             splitPane = null; // release resources
             reducePanel.removeEventFilter(MouseEvent.MOUSE_CLICKED, RunREDUCE::useSplitPaneMouseClicked);
             // Retain the reducePanel from the selected tab:
@@ -152,6 +158,7 @@ static void useTabPane(boolean enable) {
                 Platform.runLater(() -> reducePanel.inputTextArea.requestFocus());
             }
         } else { // Revert to single pane.
+            reducePanelList.removeIf(x -> x != reducePanel);
             tabPane = null; // release resources
             // Retain the reducePanel from the selected tab:
             runREDUCEFrame.frame.setCenter(reducePanel);
@@ -160,6 +167,7 @@ static void useTabPane(boolean enable) {
 
     static void addTab() {
         Tab tab = new Tab("Tab " + (++tabLabelNumber), reducePanel = new REDUCEPanel());
+        reducePanelList.add(reducePanel);
         tab.setOnSelectionChanged(RunREDUCE::tabOnSelectionChanged);
         tab.setOnClosed(RunREDUCE::tabOnClosed);
         tabPane.getTabs().add(tab);
@@ -184,7 +192,7 @@ private static void tabOnClosed(Event event) {
             RRPreferences.save(RRPreferences.DISPLAYPANE, RRPreferences.DisplayPane.SINGLE);
             runREDUCEFrame.singlePaneRadioButton.setSelected(true);
             runREDUCEFrame.addTabMenuItem.setDisable(true);
-        }
+        } else reducePanelList.remove(((Tab) event.getSource()).getContent());
     }
 
     /**

src/fjwright/runreduce/RunREDUCEFrame.java

@@ -660,7 +660,7 @@ private void sourceForgeMenuItemAction() {
         RunREDUCE.hostServices.showDocument("https://sourceforge.net/projects/reduce-algebra/");
     }
 
-    static final String VERSION = "2.44";
+    static final String VERSION = "2.45";
 
     @FXML
     private void aboutMenuItemAction() {

src/fjwright/runreduce/UserGuide.html

@@ -630,14 +630,13 @@ <h2 id="ViewMenu">The View Menu</h2>
     <h3>Font Size...</h3>
     <p>This displays a dialogue that allows you to change the font
     size used in the <em>Input/Output Display</em> and <em>Input
-    Editor</em> panes.  It applies to each REDUCE panel independently.
+    Editor</em> panes.  Font size applies to each REDUCE panel
+    independently.
     </p>
     <h3>Font Colours...</h3>
     <p>This displays a dialogue that allows you to change the colours
-      used in the <em>Input/Output Display</em> pane.  Currently, it
-      applies to the REDUCE panel selected when you click on
-      the <em>Save</em> button (but this is not consistent with other
-      options and may change in a future release).
+      used in the <em>Input/Output Display</em> pane.  Font colours
+      apply to all REDUCE panels together.
     </p>
     <p>The colours that you can select are the foreground text colours
       for algebraic and symbolic mode input and output, and the
@@ -660,18 +659,20 @@ <h3>Font Colours...</h3>
       unless you click on the <em>Save</em> button.
     </p>
     <h3>Bold Prompts</h3>
-    <p>Selecting this item causes Run-REDUCE to embolden the
-    display of all input prompts.  It applies to each REDUCE panel independently.
+    <p>Selecting this item causes Run-REDUCE to embolden the display
+    of all input prompts.  Bold prompts apply to each REDUCE panel
+    independently.
     </p>
     <h3>I/O Colouring</h3>
     <p>Selecting this item causes Run-REDUCE to colour the text in
-    the <em>Input/Output Display</em> pane.  The colouring depends on
-    REDUCE's current input mode: by default, algebraic-mode prompts
-    and input are red, algebraic-mode output is blue, symbolic-mode
-    prompts and input are green, symbolic-mode output is brown.
-    Echoed file input is not coloured.  By default, Run-REDUCE
-    highlights warnings and errors with quarter-opaque orange and red
-    background colours.
+    the <em>Input/Output Display</em> pane.  I/O colouring applies to
+    each REDUCE panel independently (although the colour choices apply
+    to all REDUCE panels together).  The colouring depends on REDUCE's
+    current input mode: by default, algebraic-mode prompts and input
+    are red, algebraic-mode output is blue, symbolic-mode prompts and
+    input are green, symbolic-mode output is brown.  Echoed file input
+    is not coloured.  By default, Run-REDUCE highlights warnings and
+    errors with quarter-opaque orange and red background colours.
     </p>
     <p>Note that turning I/O colouring on does not fully take effect
     until the next input prompt.  Turning I/O colouring off takes
@@ -685,15 +686,15 @@ <h3>I/O Colouring</h3>
     <h3>Typeset Maths</h3>
     <p>Selecting this item causes Run-REDUCE to display algebraic-mode
       mathematical output more-or-less as it would be typeset, and
-      centred horizontally.  It applies to each REDUCE panel
-      independently.  Output display will be significantly faster when
-      Typeset Maths is turned off.  <strong>WARNINGS:</strong> Typeset
-      Maths is currently experimental and line breaking is somewhat
-      arbitrary.  The display may be incorrect in some cases,
-      e.g. with unusual switch settings such as <em>on list</em>.  If
-      any LaTeX markup appears (coloured red) in the output then
-      please let me know!  <em>Save Session Log...</em> outputs
-      typeset maths using LaTeX markup.
+      centred horizontally.  Typeset maths applies to each REDUCE
+      panel independently.  Output display will be significantly
+      faster when Typeset Maths is turned
+      off.  <strong>WARNINGS:</strong> Typeset Maths is currently
+      experimental and line breaking is somewhat arbitrary.  The
+      display may be incorrect in some cases, e.g. with unusual switch
+      settings such as <em>on list</em>.  If any LaTeX markup appears
+      (coloured red) in the output then please let me know!  <em>Save
+      Session Log...</em> outputs typeset maths using LaTeX markup.
     </p>
     <h3>Single Pane Display</h3>
     <p>Selecting this causes Run-REDUCE to display the selected