Text in Dialog was cutoff due to invalid use of AdjustWindowRectEx

AdjustWindowRectEx does not take DPI into account. So using
AdjustWindowRectExForDpi and passing the zoom level to retrieve correct
coordinates and scaling accordingly.

Author: ShahzaibIbrahim

bundles/org.eclipse.swt/Eclipse SWT PI/win32/org/eclipse/swt/internal/win32/OS.java

@@ -2344,6 +2344,7 @@ public static int HRESULT_FROM_WIN32(int x) {
  */
 public static final native int AddFontResourceEx(char[] lpszFilename, int fl, long pdv);
 public static final native boolean AdjustWindowRectEx (RECT lpRect, int dwStyle, boolean bMenu, int dwExStyle);
+public static final native boolean AdjustWindowRectExForDpi (RECT lpRect, int dwStyle, boolean bMenu, int dwExStyle, int dpi);
 /** @method flags=no_gen */
 public static final native boolean AllowDarkModeForWindow(long hWnd, boolean allow);
 public static final native boolean AllowSetForegroundWindow (int dwProcessId);

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

@@ -313,7 +313,7 @@ Control computeTabRoot () {
 	int bits1 = OS.GetWindowLong (handle, OS.GWL_STYLE);
 	int bits2 = OS.GetWindowLong (handle, OS.GWL_EXSTYLE);
 	boolean hasMenu = OS.GetMenu (handle) != 0;
-	OS.AdjustWindowRectEx (rect, bits1, hasMenu, bits2);
+	OS.AdjustWindowRectExForDpi (rect, bits1, hasMenu, bits2, getZoom());
 
 	/* Get the size of the scroll bars */
 	if (horizontalBar != null) rect.bottom += getSystemMetrics (OS.SM_CYHSCROLL);
@@ -472,7 +472,7 @@ void fixDecorations (Decorations newDecorations, Control control, Menu [] menus)
 		int bits1 = OS.GetWindowLong (handle, OS.GWL_STYLE);
 		int bits2 = OS.GetWindowLong (handle, OS.GWL_EXSTYLE);
 		boolean hasMenu = OS.GetMenu (handle) != 0;
-		OS.AdjustWindowRectEx (rect, bits1, hasMenu, bits2);
+		OS.AdjustWindowRectExForDpi (rect, bits1, hasMenu, bits2, getZoom());
 		width = Math.max (0, width - (rect.right - rect.left));
 		height = Math.max (0, height - (rect.bottom - rect.top));
 		return new Rectangle (0, 0, width, height);

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

@@ -134,7 +134,7 @@ Rectangle computeTrimInPixels (int x, int y, int width, int height) {
 	OS.SetRect (rect, x, y, x + width, y + height);
 	int bits1 = OS.GetWindowLong (scrolledHandle, OS.GWL_STYLE);
 	int bits2 = OS.GetWindowLong (scrolledHandle, OS.GWL_EXSTYLE);
-	OS.AdjustWindowRectEx (rect, bits1, false, bits2);
+	OS.AdjustWindowRectExForDpi (rect, bits1, false, bits2, getZoom());
 	if (horizontalBar != null) rect.bottom += getSystemMetrics (OS.SM_CYHSCROLL);
 	if (verticalBar != null) rect.right += getSystemMetrics (OS.SM_CXVSCROLL);
 	int nWidth = rect.right - rect.left, nHeight = rect.bottom - rect.top;

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

@@ -1068,7 +1068,7 @@ Point getMaximumSizeInPixels () {
 			RECT rect = new RECT ();
 			int bits1 = OS.GetWindowLong (handle, OS.GWL_STYLE);
 			int bits2 = OS.GetWindowLong (handle, OS.GWL_EXSTYLE);
-			OS.AdjustWindowRectEx (rect, bits1, false, bits2);
+			OS.AdjustWindowRectExForDpi (rect, bits1, false, bits2, getZoom());
 			height = Math.min (height, rect.bottom - rect.top);
 		}
 	}
@@ -1109,7 +1109,7 @@ Point getMinimumSizeInPixels () {
 			RECT rect = new RECT ();
 			int bits1 = OS.GetWindowLong (handle, OS.GWL_STYLE);
 			int bits2 = OS.GetWindowLong (handle, OS.GWL_EXSTYLE);
-			OS.AdjustWindowRectEx (rect, bits1, false, bits2);
+			OS.AdjustWindowRectExForDpi (rect, bits1, false, bits2, getZoom());
 			height = Math.max (height, rect.bottom - rect.top);
 		}
 	}
@@ -1815,7 +1815,7 @@ void setMaximumSizeInPixels (int width, int height) {
 			RECT rect = new RECT ();
 			int bits1 = OS.GetWindowLong (handle, OS.GWL_STYLE);
 			int bits2 = OS.GetWindowLong (handle, OS.GWL_EXSTYLE);
-			OS.AdjustWindowRectEx (rect, bits1, false, bits2);
+			OS.AdjustWindowRectExForDpi (rect, bits1, false, bits2, getZoom());
 			heightLimit = rect.bottom - rect.top;
 		}
 	}
@@ -1861,7 +1861,7 @@ void setMinimumSizeInPixels (int width, int height) {
 			RECT rect = new RECT ();
 			int bits1 = OS.GetWindowLong (handle, OS.GWL_STYLE);
 			int bits2 = OS.GetWindowLong (handle, OS.GWL_EXSTYLE);
-			OS.AdjustWindowRectEx (rect, bits1, false, bits2);
+			OS.AdjustWindowRectExForDpi (rect, bits1, false, bits2, getZoom());
 			heightLimit = rect.bottom - rect.top;
 		}
 	}
@@ -2671,7 +2671,7 @@ LRESULT WM_WINDOWPOSCHANGING (long wParam, long lParam) {
 				RECT rect = new RECT ();
 				int bits1 = OS.GetWindowLong (handle, OS.GWL_STYLE);
 				int bits2 = OS.GetWindowLong (handle, OS.GWL_EXSTYLE);
-				OS.AdjustWindowRectEx (rect, bits1, false, bits2);
+				OS.AdjustWindowRectExForDpi (rect, bits1, false, bits2, getZoom());
 				lpwp.cy = Math.max (lpwp.cy, rect.bottom - rect.top);
 			}
 		}

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

@@ -320,7 +320,7 @@ void addVerifyListener (VerifyListener listener) {
 		bits0 &= ~OS.WS_BORDER;
 		bits1 |= OS.WS_EX_CLIENTEDGE;
 	}
-	OS.AdjustWindowRectEx (rect, bits0, false, bits1);
+	OS.AdjustWindowRectExForDpi (rect, bits0, false, bits1, getZoom());
 	width = rect.right - rect.left;
 	height = rect.bottom - rect.top;