Adapt StyledText DPI_CHANGE handling

This commit adapts how StyledText handles the scaling of Caret with
better platform independent APIs instead of utilizing win32 specific
static methods.

contributes to
#62 and
#128

Author: amartya4256

bundles/org.eclipse.swt/Eclipse SWT Custom Widgets/common/org/eclipse/swt/custom/StyledText.java

@@ -10912,6 +10912,8 @@ void updateSelection(int startOffset, int replacedLength, int newLength) {
  * @noreference This method is not intended to be referenced by clients.
  */
 public static void updateAndRefreshCarets(StyledText styledText, Consumer<Caret> caretUpdater) {
+	styledText.updateCaretVisibility();
+	styledText.setCaretLocations();
 	Set<Caret> caretSet = new HashSet<>();
 	caretSet.add(styledText.getCaret());
 	caretSet.add(styledText.defaultCaret);
@@ -10922,9 +10924,6 @@ public static void updateAndRefreshCarets(StyledText styledText, Consumer<Caret>
 	}
 	caretSet.stream().filter(Objects::nonNull).forEach(caretUpdater);
 
-	styledText.updateCaretVisibility();
-	styledText.setCaretLocations();
-
 }
 
 }

bundles/org.eclipse.swt/Eclipse SWT/win32/org/eclipse/swt/internal/CommonWidgetsDPIChangeHandlers.java

@@ -51,11 +51,8 @@ private static void handleStyledTextDPIChange(Widget widget, int newZoom, float
 		if (!(widget instanceof StyledText styledText)) {
 			return;
 		}
-
-
 		StyledText.updateAndRefreshCarets(styledText, caretToRefresh -> {
 			DPIZoomChangeRegistry.applyChange(caretToRefresh, newZoom, scalingFactor);
-			Caret.win32_setHeight(caretToRefresh, styledText.getLineHeight());
 		});
 	}
 	private static void handleCComboDPIChange(Widget widget, int newZoom, float scalingFactor) {

bundles/org.eclipse.swt/Eclipse SWT/win32/org/eclipse/swt/widgets/Caret.java

@@ -688,6 +688,7 @@ private static void handleDPIChange(Widget widget, int newZoom, float scalingFac
 	if (caret.font != null) {
 		caret.setFont(caret.font);
 	}
+	caret.resize();
 }
 }