Scale cursor width by monitor specific zoom

This commit adapts the scaling of Cursor width with respect to the
monitor zoom since the OS call OS.SystemParametersInfo returns the caret
width for the primary zoom at startup.

Author: amartya4256

bundles/org.eclipse.swt/Eclipse SWT Program/win32/org/eclipse/swt/program/Program.java

@@ -417,7 +417,7 @@ private ImageData getImageDataUsingExtension(int zoom) {
 	if (extension != null) {
 		// OS.SHGetFileInfo is System DPI-aware, hence it retrieves the icon with zoom
 		// of primary monitor at the application startup
-		int initialNativeZoom = getPrimaryMonitorZoomAtStartup();
+		int initialNativeZoom = Win32DPIUtils.getPrimaryMonitorZoomAtStartup();
 		SHFILEINFO shfi = new SHFILEINFO ();
 		int flags = OS.SHGFI_ICON | OS.SHGFI_USEFILEATTRIBUTES;
 		boolean useLargeIcon = 100 * zoom /  initialNativeZoom >= 200;
@@ -439,13 +439,6 @@ private ImageData getImageDataUsingExtension(int zoom) {
 	return null;
 }
 
-private int getPrimaryMonitorZoomAtStartup() {
-	long hDC = OS.GetDC(0);
-	int dpi = OS.GetDeviceCaps(hDC, OS.LOGPIXELSX);
-	OS.ReleaseDC(0, hDC);
-	return DPIUtil.mapDPIToZoom(dpi);
-}
-
 /**
  * Returns the receiver's name.  This is as short and
  * descriptive a name as possible for the program.  If

bundles/org.eclipse.swt/Eclipse SWT/win32/org/eclipse/swt/internal/Win32DPIUtils.java

@@ -306,6 +306,15 @@ public static boolean isMonitorSpecificScalingActive() {
 		return updateOnRuntimeValue;
 	}
 
+
+
+	public static int getPrimaryMonitorZoomAtStartup() {
+		long hDC = OS.GetDC(0);
+		int dpi = OS.GetDeviceCaps(hDC, OS.LOGPIXELSX);
+		OS.ReleaseDC(0, hDC);
+		return DPIUtil.mapDPIToZoom(dpi);
+	}
+
 	/**
 	 * AutoScale ImageDataProvider.
 	 */

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

@@ -132,7 +132,9 @@ Rectangle getBoundsInPixels () {
 	if (width == 0) {
 		int [] buffer = new int [1];
 		if (OS.SystemParametersInfo (OS.SPI_GETCARETWIDTH, 0, buffer, 0)) {
-			return new Rectangle (getXInPixels(), getYInPixels(), buffer [0], getHeightInPixels());
+			int width = DPIUtil.pixelToPoint(buffer [0], Win32DPIUtils.getPrimaryMonitorZoomAtStartup());
+			int widthInPixels = Win32DPIUtils.pointToPixel(width, getNativeZoom());
+			return new Rectangle (getXInPixels(), getYInPixels(), widthInPixels, getHeightInPixels());
 		}
 	}
 	return new Rectangle (getXInPixels(), getYInPixels(), getWidthInPixels(), getHeightInPixels());
@@ -226,7 +228,9 @@ Point getSizeInPixels () {
 	if (width == 0) {
 		int [] buffer = new int [1];
 		if (OS.SystemParametersInfo (OS.SPI_GETCARETWIDTH, 0, buffer, 0)) {
-			return new Point (buffer [0], getHeightInPixels());
+			int width = DPIUtil.pixelToPoint(buffer [0], Win32DPIUtils.getPrimaryMonitorZoomAtStartup());
+			int widthInPixels = Win32DPIUtils.pointToPixel(width, getNativeZoom());
+			return new Point (widthInPixels, getHeightInPixels());
 		}
 	}
 	return new Point (getWidthInPixels(), getHeightInPixels());
@@ -370,7 +374,8 @@ void resize () {
 	if (image == null && widthInPixels == 0) {
 		int [] buffer = new int [1];
 		if (OS.SystemParametersInfo (OS.SPI_GETCARETWIDTH, 0, buffer, 0)) {
-			widthInPixels = buffer [0];
+			int width = DPIUtil.pixelToPoint(buffer [0], Win32DPIUtils.getPrimaryMonitorZoomAtStartup());
+			widthInPixels = Win32DPIUtils.pointToPixel(width, getNativeZoom());
 		}
 	}
 	OS.CreateCaret (hwnd, hBitmap, widthInPixels, getHeightInPixels());
@@ -449,7 +454,8 @@ void setFocus () {
 	if (image == null && widthInPixels == 0) {
 		int [] buffer = new int [1];
 		if (OS.SystemParametersInfo (OS.SPI_GETCARETWIDTH, 0, buffer, 0)) {
-			widthInPixels = buffer [0];
+			int width = DPIUtil.pixelToPoint(buffer [0], Win32DPIUtils.getPrimaryMonitorZoomAtStartup());
+			widthInPixels = Win32DPIUtils.pointToPixel(width, getNativeZoom());
 		}
 	}
 	OS.CreateCaret (hwnd, hBitmap, widthInPixels, getHeightInPixels());

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

@@ -2553,6 +2553,13 @@ Font getSystemFont (int zoom) {
 	return systemFont;
 }
 
+static int getPrimaryMonitorZoomAtStartup() {
+	long hDC = OS.GetDC(0);
+	int dpi = OS.GetDeviceCaps(hDC, OS.LOGPIXELSX);
+	OS.ReleaseDC(0, hDC);
+	return DPIUtil.mapDPIToZoom(dpi);
+}
+
 /**
  * Returns the matching standard platform image for the given
  * constant, which should be one of the icon constants

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

@@ -911,7 +911,7 @@ private long getMenuItemIconSelectedBitmapHandle() {
 }
 
 private int adaptZoomForMenuItem(int currentZoom, Image image) {
-	int primaryMonitorZoomAtAppStartUp = getPrimaryMonitorZoomAtStartup();
+	int primaryMonitorZoomAtAppStartUp = Win32DPIUtils.getPrimaryMonitorZoomAtStartup();
 	/*
 	 * Windows has inconsistent behavior when setting the size of MenuItem image and
 	 * hence we need to adjust the size of the images as per different kind of zoom
@@ -940,13 +940,6 @@ private static boolean isQuarterZoom(int zoom) {
 	return zoom % 10 != 0 && zoom % 25 == 0;
 }
 
-private static int getPrimaryMonitorZoomAtStartup() {
-	long hDC = OS.GetDC(0);
-	int dpi = OS.GetDeviceCaps(hDC, OS.LOGPIXELSX);
-	OS.ReleaseDC(0, hDC);
-	return DPIUtil.mapDPIToZoom(dpi);
-}
-
 /**
  * Sets the receiver's pull down menu to the argument.
  * Only <code>CASCADE</code> menu items can have a