GUI: improved gui scale support (part of #969, #6887):

- added GUI scale support for dialog titles;
- added GUI scale support for hints tool;
- fixed broken font in chat and game logs on settings change;
- fixed wrong size of pick choice dialog in some use cases;

Mage.Client/src/main/java/mage/client/components/ColorPane.java

@@ -24,6 +24,7 @@ public class ColorPane extends MageEditorPane {
      * @param color
      */
     public void setExtBackgroundColor(Color color) {
+        // TODO: research, maybe no needs in good opaque + background settings
         setBackground(new Color(0, 0, 0, 0));
         JPanel jPanel = new JPanel();
         jPanel.setBackground(color);
@@ -32,6 +33,7 @@ public class ColorPane extends MageEditorPane {
     }
 
     public void setExtBackgroundColor(BackgroundPainter backgroundPainter) {
+        // TODO: research, maybe no needs in good opaque + background settings
         setBackground(new Color(0, 0, 0, 0));
         JXPanel jPanel = new JXPanel();
         jPanel.setBackgroundPainter(backgroundPainter);
@@ -46,6 +48,7 @@ public class ColorPane extends MageEditorPane {
      */
     @Override
     public void paintChildren(Graphics g) {
+        // TODO: research, maybe no needs in good opaque + background settings
         super.paintComponent(g);
     }
 
@@ -56,6 +59,7 @@ public class ColorPane extends MageEditorPane {
      */
     @Override
     public void paintComponent(Graphics g) {
+        // TODO: research, maybe no needs in good opaque + background settings
         super.paintChildren(g);
     }
 }

Mage.Client/src/main/java/mage/client/components/MageEditorPane.java

@@ -17,7 +17,10 @@ import mage.view.PlaneView;
 import javax.swing.*;
 import javax.swing.event.HyperlinkEvent;
 import javax.swing.text.*;
-import javax.swing.text.html.*;
+import javax.swing.text.html.CSS;
+import javax.swing.text.html.HTML;
+import javax.swing.text.html.HTMLDocument;
+import javax.swing.text.html.HTMLEditorKit;
 import java.awt.*;
 import java.awt.event.MouseAdapter;
 import java.awt.event.MouseEvent;
@@ -52,6 +55,19 @@ public class MageEditorPane extends JEditorPane {
 
         // improved style: browser's url style with underline on mouse over and hand cursor
         kit.getStyleSheet().addRule(" a { text-decoration: none; } ");
+
+        changeGUISize(this.getFont());
+    }
+
+    public void changeGUISize(Font font) {
+        this.setFont(font);
+
+        // workaround to change editor's font at runtime
+        String bodyRule = "body { "
+                + " font-family: " + font.getFamily() + "; "
+                + " font-size: " + font.getSize() + "pt; "
+                + "}";
+        kit.getStyleSheet().addRule(bodyRule);
     }
 
     /**
@@ -264,6 +280,4 @@ public class MageEditorPane extends JEditorPane {
         hyperlinkEnabled = true;
         addHyperlinkHandlers();
     }
-
-
 }