Fix various typos in the codebase

Fixes mostly source documentation, comments, and some user-facing typos.
Found via `codespell -q 3 -S "*.eps,*.raw" -L ahd,siz,widthn`

README.md

@@ -290,7 +290,7 @@ in your cmake options.**
 
 The following defines can be defined in cmake to modify the behavior of the 
 plugin:
-- `DDS_DISABLE_STRIDE_ALIGNMENT`: disable the stride aligment based on DDS 
+- `DDS_DISABLE_STRIDE_ALIGNMENT`: disable the stride alignment based on DDS 
   pitch: it is known that some writers do not set it correctly.
 
 ### The HEIF plugin
@@ -382,7 +382,7 @@ The following defines can be defined in cmake to modify the behavior of the
 plugin:
 - `JXR_DENY_FLOAT_IMAGE`: disables the use of float images and consequently 
   any HDR data will be lost.
-- `JXR_DISABLE_DEPTH_CONVERSION`: remove the neeeds of additional memory by 
+- `JXR_DISABLE_DEPTH_CONVERSION`: remove the needs of additional memory by 
   disabling the conversion between different color depths (e.g. RGBA64bpp to 
   RGBA32bpp) at the cost of reduced compatibility.
 - `JXR_DISABLE_BGRA_HACK`: Windows displays and opens JXR files correctly out 

autotests/templateimage.h

@@ -56,7 +56,7 @@ public:
 
     /*!
      * \brief skipSequentialDeviceTest
-     * \return tre it the sequential test should be skipped.
+     * \return True if the sequential test should be skipped.
      */
     bool skipSequentialDeviceTest() const;
 

src/imageformats/chunks_p.h

@@ -36,7 +36,7 @@ Q_DECLARE_LOGGING_CATEGORY(LOG_IFFPLUGIN)
 #define LIST_CHUNK QByteArray("LIST")
 #define PROP_CHUNK QByteArray("PROP")
 
-// Main chuncks (Maya)
+// Main chunks (Maya)
 #define CAT4_CHUNK QByteArray("CAT4") // 4 byte alignment
 #define FOR4_CHUNK QByteArray("FOR4")
 #define LIS4_CHUNK QByteArray("LIS4")
@@ -145,7 +145,7 @@ public:
 
     /*!
      * \brief bytes
-     * \return The size (in bytes) of the chunck data.
+     * \return The size (in bytes) of the chunk data.
      */
 
     quint32 bytes() const;
@@ -870,7 +870,7 @@ public:
     /*!
      * \brief transformation
      * \return The image transformation.
-     * \note The Default implentation returns the trasformation of EXIF chunk (if any).
+     * \note The Default implementation returns the transformation of EXIF chunk (if any).
      */
     virtual QImageIOHandler::Transformation transformation() const;
 

src/imageformats/dds.cpp

@@ -20,7 +20,7 @@
 #include <cmath>
 
 #ifndef DDS_DISABLE_STRIDE_ALIGNMENT
-// Disable the stride aligment based on DDS pitch: it is known that some writers do not set it correctly
+// Disable the stride alignment based on DDS pitch: it is known that some writers do not set it correctly
 // #define DDS_DISABLE_STRIDE_ALIGNMENT
 #endif
 

src/imageformats/eps.cpp

@@ -179,7 +179,7 @@ bool EPSHandler::read(QImage *image)
 
     const QString gsExec = QStandardPaths::findExecutable(QStringLiteral("gs"));
     if (gsExec.isEmpty()) {
-        qCWarning(EPSPLUGIN) << "Couldn't find gs exectuable (from GhostScript) in PATH.";
+        qCWarning(EPSPLUGIN) << "Couldn't find gs executable (from GhostScript) in PATH.";
         return false;
     }
 

src/imageformats/hdr.cpp

@@ -514,7 +514,7 @@ bool HDRHandler::canRead(QIODevice *device)
         return true;
     }
 
-    // allow to load offical test cases: https://radsite.lbl.gov/radiance/framed.html
+    // allow to load official test cases: https://radsite.lbl.gov/radiance/framed.html
     device->startTransaction();
     auto h = HDRHandlerPrivate::readHeader(device);
     device->rollbackTransaction();

src/imageformats/jxl.cpp

@@ -180,7 +180,7 @@ bool QJpegXLHandler::ensureDecoder()
     int num_worker_threads = QThread::idealThreadCount();
     if (!m_runner && num_worker_threads >= 4) {
         /* use half of the threads because plug-in is usually used in environment
-         * where application performs another tasks in backround (pre-load other images) */
+         * where application performs other tasks in the background (pre-load other images) */
         num_worker_threads = num_worker_threads / 2;
         num_worker_threads = qBound(2, num_worker_threads, 64);
         m_runner = JxlThreadParallelRunnerCreate(nullptr, num_worker_threads);

src/imageformats/jxr.cpp

@@ -45,7 +45,7 @@ Q_LOGGING_CATEGORY(LOG_JXRPLUGIN, "kf.imageformats.plugins.jxr", QtWarningMsg)
 // #define JXR_DENY_FLOAT_IMAGE
 
 /*!
- * Remove the neeeds of additional memory by disabling the conversion between
+ * Remove the needs of additional memory by disabling the conversion between
  * different color depths (e.g. RGBA64bpp to RGBA32bpp).
  *
  * NOTE: Leaving deptch conversion enabled (default) ensures maximum read compatibility.

src/imageformats/microexif.cpp

@@ -256,7 +256,7 @@ static bool checkHeader(QDataStream &ds)
 
 /*!
  * \brief updatePos
- * Write the current stram position in \a pos position as uint32.
+ * Write the current stream position in \a pos position as uint32.
  * \return True on success, otherwise false;
  */
 static bool updatePos(QDataStream &ds, quint32 pos)
@@ -510,7 +510,7 @@ static QByteArray readBytes(QDataStream &ds, quint32 count, bool asciiz)
  * \param pos The position of the IFD.
  * \param knownTags List of known and supported tags.
  * \param nextIfd The position of next IFD (0 if none).
- * \return True on succes, otherwise false.
+ * \return True on success, otherwise false.
  */
 static bool readIfd(QDataStream &ds, MicroExif::Tags &tags, quint32 pos = 0, const KnownTags &knownTags = staticTagTypes, quint32 *nextIfd = nullptr)
 {

src/imageformats/microexif_p.h

@@ -125,7 +125,7 @@ public:
 
     /*!
      * \brief transformation
-     * \return The orientation converted in the equvalent Qt transformation.
+     * \return The orientation converted in the equivalent Qt transformation.
      * \sa orientation
      */
     QImageIOHandler::Transformation transformation() const;

src/imageformats/psd.cpp

@@ -640,7 +640,7 @@ static bool setResolution(QImage &img, const PSDImageResourceSection &irs)
 
     s.skipRawData(4);                       // Display data (not used here)
 
-    s >> i32;                               // Vertial resolution in pixels per inch.
+    s >> i32;                               // Vertical resolution in pixels per inch.
     if (i32 <= 0)
         return false;
     auto vres = dpi2ppm(fixedPointToDouble(i32));
@@ -1529,7 +1529,7 @@ bool PSDHandler::read(QImage *image)
                         planarToChunchy<float>(scanLine, rawStride.data(), header.width, 0, imgChannels);
                         planarToChunchy<float>(scanLine, rawStride.data(), header.width, 1, imgChannels);
                         planarToChunchy<float>(scanLine, rawStride.data(), header.width, 2, imgChannels);
-                    } else { // 32-bits float images: Grayscale (coverted to equivalent integer 16-bits)
+                    } else { // 32-bits float images: Grayscale (converted to equivalent integer 16-bits)
                         planarToChunchyFloatToUInt16<float>(scanLine, rawStride.data(), header.width, c, imgChannels);
                     }
                 }

src/imageformats/raw.cpp

@@ -610,7 +610,7 @@ void setParams(QImageIOHandler *handler, LibRaw *rawProcessor)
      * \brief use_auto_wb
      * Average the whole image for white balance (0 - off, 1 - on)
      *
-     * This is usefull if no camera white balance is available.
+     * This is useful if no camera white balance is available.
      */
     params.use_auto_wb = T_AW(quality);
 

src/imageformats/raw_p.h

@@ -49,7 +49,7 @@ private:
      * _: reserved (should be zero)
      * I: interpolation quality (0 - linear, 1 - VNG, 2 - PPG, 3 - AHD, 4 - DCB, 11 - DHT, 12 - AAHD)
      * C: output colorspace (0 - raw, 1 - sRGB, 2 - Adobe, 3 - Wide, 4 - ProPhoto, 5 - XYZ, 6 - ACES, 7 - DCI-P3, 8 - Rec2020)
-     * W: use camera white balace (0 - off, 1 - on)
+     * W: use camera white balance (0 - off, 1 - on)
      * A: use auto white balance (0 - off, 1 - on)
      * B: output bit per sample (0 - 8-bits, 1 - 16-bits)
      * H: half size image (0 - off, 1 - on)

src/imageformats/xcf.cpp

@@ -1379,13 +1379,13 @@ bool XCFImageFormat::composeTiles(XCFImage &xcf_image)
     // SANITY CHECK: Avoid to load XCF with a layer grater than 10 times the final image
     if (qint64(layer.width) * layer.height / 10 > qint64(xcf_image.header.width) * xcf_image.header.height) {
         if (qint64(layer.width) * layer.height > 16384 * 16384) { // large layers only
-            qCWarning(XCFPLUGIN) << "Euristic sanity check: the image may be corrupted!";
+            qCWarning(XCFPLUGIN) << "Heuristic sanity check: the image may be corrupted!";
             return false;
         }
     }
 
 #ifndef XCF_QT5_SUPPORT
-    // Qt 6 image allocation limit calculation: we have to check the limit here because the image is splitted in
+    // Qt 6 image allocation limit calculation: we have to check the limit here because the image is split in
     // tiles of 64x64 pixels. The required memory to build the image is at least doubled because tiles are loaded
     // and then the final image is created by copying the tiles inside it.
     // NOTE: on Windows to open a 10GiB image the plugin uses 28GiB of RAM