[graphics/digikam] core/libs: cppcheck: constify

Git commit ac370848cd441967d0cbd48137bad0f2aac2081b by Gilles Caulier.
Committed on 18/08/2026 at 07:11.
Pushed by cgilles into branch 'master'.

cppcheck: constify

M  +1    -1    core/libs/dimg/filters/fx/charcoalfilter.cpp
M  +1    -1    core/libs/dimg/filters/fx/charcoalfilter.h
M  +8    -6    core/libs/tags/widgets/addtagslineedit.cpp

https://invent.kde.org/graphics/digikam/-/commit/ac370848cd441967d0cbd48137bad0f2aac2081b

diff --git a/core/libs/dimg/filters/fx/charcoalfilter.cpp b/core/libs/dimg/filters/fx/charcoalfilter.cpp
index 8a2b6f92b8..cfc0bfecec 100644
--- a/core/libs/dimg/filters/fx/charcoalfilter.cpp
+++ b/core/libs/dimg/filters/fx/charcoalfilter.cpp
@@ -183,7 +183,7 @@ void CharcoalFilter::filterImage()
     }
 }
 
-void CharcoalFilter::convolveImageMultithreaded(uint start, uint stop, double* normal_kernel, double kernelWidth)
+void CharcoalFilter::convolveImageMultithreaded(uint start, uint stop, const double* const normal_kernel, double kernelWidth)
 {
     ActionThreadBase::setCurrentThreadName(QLatin1String(__FUNCTION__));       // To customize thread name
 
diff --git a/core/libs/dimg/filters/fx/charcoalfilter.h b/core/libs/dimg/filters/fx/charcoalfilter.h
index 7a911f2bdb..12f25c0130 100644
--- a/core/libs/dimg/filters/fx/charcoalfilter.h
+++ b/core/libs/dimg/filters/fx/charcoalfilter.h
@@ -69,7 +69,7 @@ private:
     int  getOptimalKernelWidth(double radius, double sigma);
     void convolveImageMultithreaded(uint start,
                                     uint stop,
-                                    double* normal_kernel,
+                                    const double* const normal_kernel,
                                     double kernelWidth);
 
 private:
diff --git a/core/libs/tags/widgets/addtagslineedit.cpp b/core/libs/tags/widgets/addtagslineedit.cpp
index da00a41ee3..270e021013 100644
--- a/core/libs/tags/widgets/addtagslineedit.cpp
+++ b/core/libs/tags/widgets/addtagslineedit.cpp
@@ -38,14 +38,16 @@ public:
 
     Private() = default;
 
-    TagCompleter*       completer       = nullptr;
-    TagTreeView*        tagView         = nullptr;
-    AlbumFilterModel*   tagFilterModel  = nullptr;
+public:
+
+    TagCompleter*       completer            = nullptr;
+    TagTreeView*        tagView              = nullptr;
+    AlbumFilterModel*   tagFilterModel       = nullptr;
 
     TaggingAction       currentTaggingAction;
-    int                 parentTagId     = 0;
+    int                 parentTagId          = 0;
 
-    bool                returnPressed   = false;
+    bool                returnPressed        = false;
 };
 
 AddTagsLineEdit::AddTagsLineEdit(QWidget* const parent)
@@ -93,7 +95,7 @@ void AddTagsLineEdit::setSupportingTagModel(TagModel* const model)
     d->completer->setSupportingTagModel(model);
 }
 
-void AddTagsLineEdit::setFilterModel(AlbumFilterModel* const model)
+void AddTagsLineEdit::setFilterModel(AlbumFilterModel* const model)         // cppcheck-suppress constParameterCallback
 {
     d->tagFilterModel = model;
     d->completer->setTagFilterModel(d->tagFilterModel);