Replacement of Image(device, int, int) constructor in examples/graphics

[al-noori]

All usages of the stated constructor with an additional GC initialization are now replaced by an ImageGcDrawer and the Image(device, gc int, int) constructor afterwards in examples/graphics.

[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:

examples/org.eclipse.swt.examples/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 c70177da5710501e5a627a684f7c18b0091c3614 Mon Sep 17 00:00:00 2001
From: Eclipse Platform Bot <[email protected]>
Date: Mon, 1 Dec 2025 10:18:24 +0000
Subject: [PATCH] Version bump(s) for 4.39 stream


diff --git a/examples/org.eclipse.swt.examples/META-INF/MANIFEST.MF b/examples/org.eclipse.swt.examples/META-INF/MANIFEST.MF
index 9b80453c74..98a229b574 100644
--- a/examples/org.eclipse.swt.examples/META-INF/MANIFEST.MF
+++ b/examples/org.eclipse.swt.examples/META-INF/MANIFEST.MF
@@ -2,7 +2,7 @@ Manifest-Version: 1.0
 Bundle-ManifestVersion: 2
 Bundle-Name: %plugin.SWTStandaloneExampleSet.name
 Bundle-SymbolicName: org.eclipse.swt.examples; singleton:=true
-Bundle-Version: 3.108.1000.qualifier
+Bundle-Version: 3.108.1100.qualifier
 Bundle-Vendor: %providerName
 Bundle-Localization: plugin
 Bundle-RequiredExecutionEnvironment: JavaSE-17
-- 
2.51.2

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

[akoch-yatta]

If I try this PR on a setup 100% primary, 175% secondary I get the following issue:

To reproduce:

1. Open the ControlExample (with vm args -Dswt.autoScale=quarter -Dswt.autoScale.updateOnRuntime=true) (on primary)
2. Open Tree Tab
3. Change background color in "Colors and Fonts"
4. Move to secondary monitor

I get the same effect on master, when I change the color, while being on the secondary monitor, but it is happening now on DPI change as well (because the handle is now recreated in that scenario as well)

[github-actions]

Test Results

  147 files  ±0    147 suites  ±0   20m 43s ⏱️ - 2m 31s
4 667 tests ±0  4 645 ✅ ±0  22 💤 ±0  0 ❌ ±0 
  408 runs  ±0    403 ✅ ±0   5 💤 ±0  0 ❌ ±0 

Results for commit 223bd30. ± Comparison against base commit 7fa0622.

♻️ This comment has been updated with latest results.

[HeikoKlare]

I get the same effect on master, when I change the color, while being on the secondary monitor, but it is happening now on DPI change as well (because the handle is now recreated in that scenario as well)

@akoch-yatta If I understand correctly, you refer to the mismatch between box and it filling, don't you? Should we create a separate ticket for it?