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

[amartya4256]

This PR provides a new API setAutoscaleDisabled to provide a better means of disabling autoscaling at widget level across all the platforms. The current implementation is intended to return a false when this method is called in cocoa and GTK and only perform an action win32 and return since we do not support widget level autoscaling control on GTK and cocoa yet.

The convention of the method is as follows:

1. Takes a boolean parameter for disabling or enabling autoscale
2. returns true if successful (in case of win32) otherwise false (in case of GTK and cocoa)

Things to be done:

• Usage of different autoscaling modes as enabled, disabled and disabled_cascaded, etc
• Testing with GEF to see how it impacts.

depends on #2930

[eclipse-platform-bot]

This pull request changes some projects for the first time in this development cycle.
Therefore the following files need a version increment:

binaries/org.eclipse.swt.win32.win32.x86_64/META-INF/MANIFEST.MF

Warning

🚧 This PR cannot be modified by maintainers because edits are disabled or it is created from an organization repository. To obtain the required changes apply the git patch manually as an additional commit.

Git patch

From 985988b5290c07034647310b3fdbf3bbb5212354 Mon Sep 17 00:00:00 2001
From: Eclipse Platform Bot <[email protected]>
Date: Tue, 30 Dec 2025 08:42:22 +0000
Subject: [PATCH] Version bump(s) for 4.39 stream


diff --git a/binaries/org.eclipse.swt.win32.win32.x86_64/META-INF/MANIFEST.MF b/binaries/org.eclipse.swt.win32.win32.x86_64/META-INF/MANIFEST.MF
index 84f618f2b6..3dccebb562 100644
--- a/binaries/org.eclipse.swt.win32.win32.x86_64/META-INF/MANIFEST.MF
+++ b/binaries/org.eclipse.swt.win32.win32.x86_64/META-INF/MANIFEST.MF
@@ -3,7 +3,7 @@ Fragment-Host: org.eclipse.swt;bundle-version="[3.128.0,4.0.0)"
 Bundle-Name: %fragmentName
 Bundle-Vendor: %providerName
 Bundle-SymbolicName: org.eclipse.swt.win32.win32.x86_64; singleton:=true
-Bundle-Version: 3.132.0.qualifier
+Bundle-Version: 3.132.100.qualifier
 Bundle-ManifestVersion: 2
 Bundle-Localization: fragment
 Export-Package: 
-- 
2.52.0

Further information are available in Common Build Issues - Missing version increments.

[github-actions]

Test Results

  176 files  ±0    176 suites  ±0   27m 50s ⏱️ + 1m 7s
4 677 tests ±0  4 655 ✅ ±0  22 💤 ±0  0 ❌ ±0 
  482 runs  ±0    476 ✅ ±0   6 💤 ±0  0 ❌ ±0 

Results for commit 2b5c0a7. ± Comparison against base commit 8afb3c5.

♻️ This comment has been updated with latest results.

[HeikoKlare]

@amartya4256 can you please add a meaningful title and description to the PR, even if it's still a draft?

[github-actions]

Test Results (macos)

   54 files  ±0     54 suites  ±0   8m 55s ⏱️ + 2m 6s
4 513 tests ±0  4 270 ✅ ±0  243 💤 ±0  0 ❌ ±0 
  104 runs  ±0    104 ✅ ±0    0 💤 ±0  0 ❌ ±0 

Results for commit ddd5eab. ± Comparison against base commit 892be33.

♻️ This comment has been updated with latest results.

[HeikoKlare]

@amartya4256 since the dependent PR is merged, this can/should be rebased on master now

[HeikoKlare]

I have not tested yet, but the code looks fine at a first glance. For now I have some comments regarding code style and documentation.

[akoch-yatta]

LGTM, I tested it with the current implementation in GEF that uses the existing DATA_ fields and adapted it with the new API methods to ensure it still works as expected