Add setAutoscaleDisabled API to provide a better means to disabling autoscaling at widget level

bundles/org.eclipse.swt/Eclipse SWT Tests/win32/org/eclipse/swt/widgets/WidgetWin32Tests.java

@@ -40,10 +40,10 @@ public void testWidgetZoomShouldChangeOnZoomLevelChange() {
 		button.setText("Widget Test");
 		button.setBackground(shell.getDisplay().getSystemColor(SWT.COLOR_CYAN));
 		shell.open();
-		assertEquals("The initial zoom is wrong", zoom, button.getZoom()); // pre-condition
+		assertEquals("The initial zoom is wrong", zoom, button.getAutoscalingZoom()); // pre-condition
 		DPITestUtil.changeDPIZoom(shell, scaledZoom);
 		assertEquals("The Zoom Level should be updated for button on zoom change event on its shell", scaledZoom,
-				button.getZoom());
+				button.getAutoscalingZoom());
 	}
 
 	@Test

bundles/org.eclipse.swt/Eclipse SWT/cocoa/org/eclipse/swt/widgets/Control.java

@@ -3527,6 +3527,25 @@ NSTouch findTouchWithId(NSArray touches, NSObject identity) {
 	return null;
 }
 
+/**
+ * Sets the autoscaling mode for this widget.
+ * The capability is not supported on every platform, such that calling this method may not have an effect on unsupported platforms. The return value indicates if the autoscale mode was set properly. With {@link #isAutoScalable()}, the autoscale enablement can also be evaluated at any later pointin time.
+ * <p>
+ * Currently, this is only supported on Windows.
+ * </p>
+ *
+ * @param autoscalingMode
+ *            the autoscaling mode to request; this argument is accepted but
+ *            ignored on this platform
+ *
+ * @return {@code false} if the operation was called on an unsupported platform
+ *
+ * @since 3.133
+ */
+public boolean setAutoscalingMode(AutoscalingMode autoscalingMode) {
+	return false;
+}
+
 void setBackground () {
 	if (!drawsBackground()) return;
 	Control control = findBackgroundControl ();

bundles/org.eclipse.swt/Eclipse SWT/cocoa/org/eclipse/swt/widgets/Shell.java

@@ -18,6 +18,7 @@
 import org.eclipse.swt.*;
 import org.eclipse.swt.events.*;
 import org.eclipse.swt.graphics.*;
+import org.eclipse.swt.internal.*;
 import org.eclipse.swt.internal.cocoa.*;
 
 /**
@@ -1992,6 +1993,17 @@ public void setModified (boolean modified) {
 	window.setDocumentEdited (modified);
 }
 
+/**
+ * Returns the native zoom of the device which is used globally by SWT.
+ *
+ * @return the native zoom for the current device
+ *
+ * @since 3.133
+ */
+public int getNativeZoom() {
+	return DPIUtil.getNativeDeviceZoom();
+}
+
 /**
  * Sets the shape of the shell to the region specified
  * by the argument.  When the argument is null, the

bundles/org.eclipse.swt/Eclipse SWT/common/org/eclipse/swt/graphics/AutoscalingMode.java

@@ -0,0 +1,32 @@
+package org.eclipse.swt.graphics;
+
+
+/**
+ * Defines the autoscaling behavior used when rendering or computing layout for
+ * controls that support DPI‑aware scaling.
+ * <p>
+ * This mode determines whether SWT takes care of the scaling of widget with
+ * respect to the zoom of the monitor or not.
+ * </p>
+ *
+ * <ul>
+ * <li><b>{@link #ENABLED}</b> – Autoscaling is explicitly enabled. Values (such
+ * as coordinates, dimensions, or layout metrics) will be adjusted according to
+ * the effective scaling factor.</li>
+ *
+ * <li><b>{@link #DISABLED}</b> – Autoscaling is explicitly disabled. Values
+ * will be used as-is without applying any scaling transformations.</li>
+ *
+ * <li><b>{@link #DISABLED_INHERITED}</b> – Autoscaling is disabled for this
+ * component, but the decision originates from a parent or owner context. This
+ * is typically used to indicate that the disabled state was not set explicitly
+ * at this level but inherited from upstream configuration.</li>
+ * </ul>
+ *
+ * @since 3.133
+ */
+public enum AutoscalingMode {
+	ENABLED,
+	DISABLED,
+	DISABLED_INHERITED
+}

bundles/org.eclipse.swt/Eclipse SWT/gtk/org/eclipse/swt/widgets/Control.java

@@ -5143,6 +5143,25 @@ void gtk_label_set_align(long label, float xAlign, float yAlign) {
 	GTK.gtk_label_set_yalign(label, yAlign);
 }
 
+/**
+ * Sets the autoscaling mode for this widget.
+ * The capability is not supported on every platform, such that calling this method may not have an effect on unsupported platforms. The return value indicates if the autoscale mode was set properly. With {@link #isAutoScalable()}, the autoscale enablement can also be evaluated at any later pointin time.
+ * <p>
+ * Currently, this is only supported on Windows.
+ * </p>
+ *
+ * @param autoscalingMode
+ *            the autoscaling mode to request; this argument is accepted but
+ *            ignored on this platform
+ *
+ * @return {@code false} if the operation was called on an unsupported platform
+ *
+ * @since 3.133
+ */
+public boolean setAutoscalingMode(AutoscalingMode autoscalingMode) {
+	return false;
+}
+
 void setBackground () {
 	if ((state & BACKGROUND) == 0 && backgroundImage == null) {
 		if ((state & PARENT_BACKGROUND) != 0) {

bundles/org.eclipse.swt/Eclipse SWT/gtk/org/eclipse/swt/widgets/Shell.java

@@ -2786,6 +2786,17 @@ public void setModified (boolean modified) {
 	this.modified = modified;
 }
 
+/**
+ * Returns the native zoom of the device which is used globally by SWT.
+ *
+ * @return the native zoom for the current device
+ *
+ * @since 3.133
+ */
+public int getNativeZoom() {
+	return DPIUtil.getNativeDeviceZoom();
+}
+
 /**
  * Sets the shape of the shell to the region specified
  * by the argument.  When the argument is null, the

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

@@ -138,7 +138,7 @@ void _setImage (Image image) {
 	if (imageList != null) imageList.dispose ();
 	imageList = null;
 	if (image != null) {
-		imageList = new ImageList (style & SWT.RIGHT_TO_LEFT, getZoom());
+		imageList = new ImageList (style & SWT.RIGHT_TO_LEFT, getAutoscalingZoom());
 		if (OS.IsWindowEnabled (handle)) {
 			imageList.add (image);
 		} else {
@@ -147,7 +147,7 @@ void _setImage (Image image) {
 			imageList.add (disabledImage);
 		}
 		BUTTON_IMAGELIST buttonImageList = new BUTTON_IMAGELIST ();
-		buttonImageList.himl = imageList.getHandle(getZoom());
+		buttonImageList.himl = imageList.getHandle(getAutoscalingZoom());
 		int oldBits = OS.GetWindowLong (handle, OS.GWL_STYLE), newBits = oldBits;
 		newBits &= ~(OS.BS_LEFT | OS.BS_CENTER | OS.BS_RIGHT);
 		if ((style & SWT.LEFT) != 0) newBits |= OS.BS_LEFT;
@@ -188,7 +188,7 @@ void _setText (String text) {
 	if ((style & SWT.RIGHT) != 0) newBits |= OS.BS_RIGHT;
 	if (imageList != null) {
 		BUTTON_IMAGELIST buttonImageList = new BUTTON_IMAGELIST ();
-		buttonImageList.himl = imageList.getHandle(getZoom());
+		buttonImageList.himl = imageList.getHandle(getAutoscalingZoom());
 		if (text.length () == 0) {
 			if ((style & SWT.LEFT) != 0) buttonImageList.uAlign = OS.BUTTON_IMAGELIST_ALIGN_LEFT;
 			if ((style & SWT.CENTER) != 0) buttonImageList.uAlign = OS.BUTTON_IMAGELIST_ALIGN_CENTER;
@@ -295,7 +295,7 @@ int computeLeftMargin () {
 	if ((style & (SWT.PUSH | SWT.TOGGLE)) == 0) return MARGIN;
 	int margin = 0;
 	if (image != null && text.length () != 0) {
-		Rectangle bounds = Win32DPIUtils.scaleBounds(image.getBounds(), this.getZoom(), 100);
+		Rectangle bounds = Win32DPIUtils.scaleBounds(image.getBounds(), this.getAutoscalingZoom(), 100);
 		margin += bounds.width + MARGIN * 2;
 		long oldFont = 0;
 		long hDC = OS.GetDC (handle);
@@ -359,13 +359,13 @@ Point computeSizeInPixels (Point hintInPoints, int zoom, boolean changed) {
 			boolean hasImage = image != null, hasText = true;
 			if (hasImage) {
 				if (image != null) {
-					Rectangle rect = Win32DPIUtils.scaleBounds(image.getBounds(), this.getZoom(), 100);
+					Rectangle rect = Win32DPIUtils.scaleBounds(image.getBounds(), this.getAutoscalingZoom(), 100);
 					width = rect.width;
 					if (hasText && text.length () != 0) {
-						width += DPIUtil.pointToPixel(MARGIN * 2, getZoom());;
+						width += DPIUtil.pointToPixel(MARGIN * 2, getAutoscalingZoom());;
 					}
 					height = rect.height;
-					extra = DPIUtil.pointToPixel(MARGIN * 2, getZoom());;
+					extra = DPIUtil.pointToPixel(MARGIN * 2, getAutoscalingZoom());;
 				}
 			}
 			if (hasText) {
@@ -379,7 +379,7 @@ Point computeSizeInPixels (Point hintInPoints, int zoom, boolean changed) {
 				if (length == 0) {
 					height = Math.max (height, lptm.tmHeight);
 				} else {
-					extra = Math.max (DPIUtil.pointToPixel(MARGIN * 2, getZoom()), lptm.tmAveCharWidth);
+					extra = Math.max (DPIUtil.pointToPixel(MARGIN * 2, getAutoscalingZoom()), lptm.tmAveCharWidth);
 					char [] buffer = text.toCharArray ();
 					RECT rect = new RECT ();
 					int flags = OS.DT_CALCRECT | OS.DT_SINGLELINE;
@@ -780,7 +780,7 @@ public void setAlignment (int alignment) {
 	if ((style & SWT.RIGHT) != 0) newBits |= OS.BS_RIGHT;
 	if (imageList != null) {
 		BUTTON_IMAGELIST buttonImageList = new BUTTON_IMAGELIST ();
-		buttonImageList.himl = imageList.getHandle(getZoom());
+		buttonImageList.himl = imageList.getHandle(getAutoscalingZoom());
 		if (text.length () == 0) {
 			if ((style & SWT.LEFT) != 0) buttonImageList.uAlign = OS.BUTTON_IMAGELIST_ALIGN_LEFT;
 			if ((style & SWT.CENTER) != 0) buttonImageList.uAlign = OS.BUTTON_IMAGELIST_ALIGN_CENTER;
@@ -1035,15 +1035,15 @@ void updateImageList () {
 		BUTTON_IMAGELIST buttonImageList = new BUTTON_IMAGELIST ();
 		OS.SendMessage (handle, OS.BCM_GETIMAGELIST, 0, buttonImageList);
 		if (imageList != null) imageList.dispose ();
-		imageList = new ImageList (style & SWT.RIGHT_TO_LEFT, getZoom());
+		imageList = new ImageList (style & SWT.RIGHT_TO_LEFT, getAutoscalingZoom());
 		if (OS.IsWindowEnabled (handle)) {
 			imageList.add (image);
 		} else {
 			if (disabledImage != null) disabledImage.dispose ();
 			disabledImage = new Image (display, image, SWT.IMAGE_DISABLE);
 			imageList.add (disabledImage);
 		}
-		buttonImageList.himl = imageList.getHandle(getZoom());
+		buttonImageList.himl = imageList.getHandle(getAutoscalingZoom());
 		OS.SendMessage (handle, OS.BCM_SETIMAGELIST, 0, buttonImageList);
 		/*
 		* Bug in Windows.  Under certain cirumstances yet to be
@@ -1392,13 +1392,13 @@ LRESULT wmNotifyChild (NMHDR hdr, long wParam, long lParam) {
 							GC gc = createNewGC(nmcd.hdc, data);
 
 							int margin = computeLeftMargin();
-							Rectangle imageBounds = Win32DPIUtils.scaleBounds(image.getBounds(), this.getZoom(), 100);
+							Rectangle imageBounds = Win32DPIUtils.scaleBounds(image.getBounds(), this.getAutoscalingZoom(), 100);
 							int imageWidth = imageBounds.width;
 							left += (imageWidth + (isRadioOrCheck() ? 2 * MARGIN : MARGIN)); // for SWT.RIGHT_TO_LEFT right and left are inverted
 
 							int x = margin + (isRadioOrCheck() ? radioOrCheckTextPadding : 3);
 							int y = Math.max (0, (nmcd.bottom - imageBounds.height) / 2);
-							int zoom = getZoom();
+							int zoom = getAutoscalingZoom();
 							gc.drawImage (image, DPIUtil.pixelToPoint(x, zoom), DPIUtil.pixelToPoint(y, zoom));
 							gc.dispose ();
 						}

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

@@ -103,7 +103,7 @@ public Canvas (Composite parent, int style) {
  * @since 3.2
  */
 public void drawBackground (GC gc, int x, int y, int width, int height) {
-	int zoom = getZoom();
+	int zoom = getAutoscalingZoom();
 	Rectangle rectangle = Win32DPIUtils.pointToPixel(new Rectangle(x, y, width, height), zoom);
 	drawBackgroundInPixels(gc, rectangle.x, rectangle.y, rectangle.width, rectangle.height, 0, 0);
 }
@@ -197,7 +197,7 @@ void reskinChildren (int flags) {
  */
 public void scroll (int destX, int destY, int x, int y, int width, int height, boolean all) {
 	checkWidget ();
-	int zoom = getZoom();
+	int zoom = getAutoscalingZoom();
 	destX = DPIUtil.pointToPixel(destX, zoom);
 	destY = DPIUtil.pointToPixel(destY, zoom);
 	Rectangle rectangle = Win32DPIUtils.pointToPixel(new Rectangle(x, y, width, height), zoom);

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

@@ -119,12 +119,12 @@ long defaultFont () {
  */
 public Rectangle getBounds () {
 	checkWidget();
-	return Win32DPIUtils.pixelToPoint(getBoundsInPixels(), getZoom());
+	return Win32DPIUtils.pixelToPoint(getBoundsInPixels(), getAutoscalingZoom());
 }
 
 Rectangle getBoundsInPixels () {
 	if (image != null) {
-		Rectangle rect = Win32DPIUtils.pointToPixel(image.getBounds(), getZoom());
+		Rectangle rect = Win32DPIUtils.pointToPixel(image.getBounds(), getAutoscalingZoom());
 		return new Rectangle (getXInPixels(), getYInPixels(), rect.width, rect.height);
 	}
 	if (width == 0) {
@@ -223,12 +223,12 @@ public Canvas getParent () {
  */
 public Point getSize () {
 	checkWidget();
-	return Win32DPIUtils.pixelToPointAsSize(getSizeInPixels(), getZoom());
+	return Win32DPIUtils.pixelToPointAsSize(getSizeInPixels(), getAutoscalingZoom());
 }
 
 Point getSizeInPixels () {
 	if (image != null) {
-		Rectangle rect = Win32DPIUtils.pointToPixel(image.getBounds(), getZoom());
+		Rectangle rect = Win32DPIUtils.pointToPixel(image.getBounds(), getAutoscalingZoom());
 		return new Point (rect.width, rect.height);
 	}
 	if (width == 0) {
@@ -241,19 +241,19 @@ Point getSizeInPixels () {
 }
 
 private int getWidthInPixels() {
-	return DPIUtil.pointToPixel(width, getZoom());
+	return DPIUtil.pointToPixel(width, getAutoscalingZoom());
 }
 
 private int getHeightInPixels() {
-	return DPIUtil.pointToPixel(height, getZoom());
+	return DPIUtil.pointToPixel(height, getAutoscalingZoom());
 }
 
 private int getXInPixels() {
-	return DPIUtil.pointToPixel(x, getZoom());
+	return DPIUtil.pointToPixel(x, getAutoscalingZoom());
 }
 
 private int getYInPixels() {
-	return DPIUtil.pointToPixel(y, getZoom());
+	return DPIUtil.pointToPixel(y, getAutoscalingZoom());
 }
 
 /**
@@ -373,7 +373,7 @@ void resize () {
 	resized = false;
 	long hwnd = parent.handle;
 	OS.DestroyCaret ();
-	long hBitmap = image != null ? Image.win32_getHandle(image, getZoom()) : 0;
+	long hBitmap = image != null ? Image.win32_getHandle(image, getAutoscalingZoom()) : 0;
 	int widthInPixels = this.getWidthInPixels();
 	if (image == null && widthInPixels == 0) {
 		OptionalInt systemCaretWidthInPixelsForCurrentMonitor = getSystemCaretWidthInPixelsForCurrentMonitor();
@@ -452,7 +452,7 @@ public void setBounds (Rectangle rect) {
 void setFocus () {
 	long hwnd = parent.handle;
 	long hBitmap = 0;
-	if (image != null) hBitmap = Image.win32_getHandle(image, getZoom());
+	if (image != null) hBitmap = Image.win32_getHandle(image, getAutoscalingZoom());
 	int widthInPixels = this.getWidthInPixels();
 	if (image == null && widthInPixels == 0) {
 		OptionalInt systemCaretWidthInPixelsForCurrentMonitor = getSystemCaretWidthInPixelsForCurrentMonitor();

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

@@ -911,7 +911,7 @@ boolean dragDetect (long hwnd, int x, int y, boolean filter, boolean [] detect,
  */
 public Point getCaretLocation () {
 	checkWidget ();
-	return Win32DPIUtils.pixelToPointAsLocation(getCaretLocationInPixels(), getZoom());
+	return Win32DPIUtils.pixelToPointAsLocation(getCaretLocationInPixels(), getAutoscalingZoom());
 }
 
 Point getCaretLocationInPixels () {
@@ -1079,7 +1079,7 @@ public int getItemCount () {
  */
 public int getItemHeight () {
 	checkWidget ();
-	return DPIUtil.pixelToPoint(getItemHeightInPixels(), getZoom());
+	return DPIUtil.pixelToPoint(getItemHeightInPixels(), getAutoscalingZoom());
 }
 
 int getItemHeightInPixels () {
@@ -1345,7 +1345,7 @@ public String getText () {
  */
 public int getTextHeight () {
 	checkWidget ();
-	return DPIUtil.pixelToPoint(getTextHeightInPixels(), getZoom());
+	return DPIUtil.pixelToPoint(getTextHeightInPixels(), getAutoscalingZoom());
 }
 
 int getTextHeightInPixels () {