no need to allocate these on the heap

and remove ByteEncoder because loplugin:unreffun
complains about ByteEncoder::EncodeByte

Change-Id: Iebc531fb7748cb9c6a83a8b4a574167a5aac58b9
Reviewed-on: https://gerrit.libreoffice.org/c/core/+/116257
Tested-by: Jenkins
Reviewed-by: Noel Grandin <noel.grandin@collabora.co.uk>

1 files changed, 23 insertions, 46 deletions

diff --git a/vcl/unx/generic/print/bitmap_gfx.cxx b/vcl/unx/generic/print/bitmap_gfx.cxx
index 830561b9677f..2d8649706060 100644
--- a/vcl/unx/generic/print/bitmap_gfx.cxx
+++ b/vcl/unx/generic/print/bitmap_gfx.cxx
@@ -38,31 +38,11 @@ PrinterBmp::~PrinterBmp()
 {
 }
 
-/* virtual base class */
-
-namespace {
-
-class ByteEncoder
-{
-private:
-
-public:
-
-    virtual void    EncodeByte (sal_uInt8 nByte) = 0;
-    virtual         ~ByteEncoder () = 0;
-};
-
-}
-
-ByteEncoder::~ByteEncoder()
-{
-}
-
 /* HexEncoder */
 
 namespace {
 
-class HexEncoder : public ByteEncoder
+class HexEncoder
 {
 private:
 
@@ -74,9 +54,9 @@ private:
 public:
 
     explicit        HexEncoder (osl::File* pFile);
-    virtual         ~HexEncoder () override;
+                   ~HexEncoder ();
     void            WriteAscii (sal_uInt8 nByte);
-    virtual void    EncodeByte (sal_uInt8 nByte) override;
+    void            EncodeByte (sal_uInt8 nByte);
     void            FlushLine ();
 };
 
@@ -132,7 +112,7 @@ HexEncoder::FlushLine ()
 
 namespace {
 
-class Ascii85Encoder : public ByteEncoder
+class Ascii85Encoder
 {
 private:
 
@@ -152,8 +132,8 @@ private:
 public:
 
     explicit        Ascii85Encoder (osl::File* pFile);
-    virtual         ~Ascii85Encoder () override;
-    virtual void    EncodeByte (sal_uInt8 nByte) override;
+    virtual         ~Ascii85Encoder ();
+    virtual void    EncodeByte (sal_uInt8 nByte);
     void            WriteAscii (sal_uInt8 nByte);
 };
 
@@ -510,19 +490,17 @@ PrinterGfx::DrawPS1GrayImage (const PrinterBmp& rBitmap, const tools::Rectangle&
     WritePS (mpPageBody, pGrayImage.makeStringAndClear());
 
     // image body
-    std::unique_ptr<HexEncoder> xEncoder(new HexEncoder (mpPageBody));
+    HexEncoder aEncoder(mpPageBody);
 
     for (tools::Long nRow = rArea.Top(); nRow <= rArea.Bottom(); nRow++)
     {
         for (tools::Long nColumn = rArea.Left(); nColumn <= rArea.Right(); nColumn++)
         {
             unsigned char nByte = rBitmap.GetPixelGray (nRow, nColumn);
-            xEncoder->EncodeByte (nByte);
+            aEncoder.EncodeByte (nByte);
         }
     }
 
-    xEncoder.reset();
-
     WritePS (mpPageBody, "\n");
 }
 
@@ -587,16 +565,15 @@ PrinterGfx::writePS2Colorspace(const PrinterBmp& rBitmap, psp::ImageType nType)
             psp::appendStr ("\npsp_lzwstring\n", pImage);
             WritePS (mpPageBody, pImage.makeStringAndClear());
 
-            std::unique_ptr<ByteEncoder> xEncoder(new LZWEncoder(mpPageBody));
+            LZWEncoder aEncoder(mpPageBody);
             for (sal_uInt32 i = 0; i < nSize; i++)
             {
                 PrinterColor aColor = rBitmap.GetPaletteColor(i);
 
-                xEncoder->EncodeByte (aColor.GetRed());
-                xEncoder->EncodeByte (aColor.GetGreen());
-                xEncoder->EncodeByte (aColor.GetBlue());
+                aEncoder.EncodeByte (aColor.GetRed());
+                aEncoder.EncodeByte (aColor.GetGreen());
+                aEncoder.EncodeByte (aColor.GetBlue());
             }
-            xEncoder.reset();
 
             WritePS (mpPageBody, "pop ] setcolorspace\n");
         }
@@ -611,14 +588,14 @@ PrinterGfx::DrawPS2GrayImage (const PrinterBmp& rBitmap, const tools::Rectangle&
     writePS2Colorspace(rBitmap, psp::ImageType::GrayScaleImage);
     writePS2ImageHeader(rArea, psp::ImageType::GrayScaleImage);
 
-    std::unique_ptr<ByteEncoder> xEncoder(new LZWEncoder(mpPageBody));
+    LZWEncoder aEncoder(mpPageBody);
 
     for (tools::Long nRow = rArea.Top(); nRow <= rArea.Bottom(); nRow++)
     {
         for (tools::Long nColumn = rArea.Left(); nColumn <= rArea.Right(); nColumn++)
         {
             unsigned char nByte = rBitmap.GetPixelGray (nRow, nColumn);
-            xEncoder->EncodeByte (nByte);
+            aEncoder.EncodeByte (nByte);
         }
     }
 }
@@ -629,7 +606,7 @@ PrinterGfx::DrawPS2MonoImage (const PrinterBmp& rBitmap, const tools::Rectangle&
     writePS2Colorspace(rBitmap, psp::ImageType::MonochromeImage);
     writePS2ImageHeader(rArea, psp::ImageType::MonochromeImage);
 
-    std::unique_ptr<ByteEncoder> xEncoder(new LZWEncoder(mpPageBody));
+    LZWEncoder aEncoder(mpPageBody);
 
     for (tools::Long nRow = rArea.Top(); nRow <= rArea.Bottom(); nRow++)
     {
@@ -643,14 +620,14 @@ PrinterGfx::DrawPS2MonoImage (const PrinterBmp& rBitmap, const tools::Rectangle&
 
             if (++nBitPos == 8)
             {
-                xEncoder->EncodeByte (nByte);
+                aEncoder.EncodeByte (nByte);
                 nBitPos = 0;
                 nByte   = 0;
             }
         }
         // keep the row byte aligned
         if (nBitPos != 0)
-            xEncoder->EncodeByte (nByte);
+            aEncoder.EncodeByte (nByte);
     }
 }
 
@@ -660,14 +637,14 @@ PrinterGfx::DrawPS2PaletteImage (const PrinterBmp& rBitmap, const tools::Rectang
     writePS2Colorspace(rBitmap, psp::ImageType::PaletteImage);
     writePS2ImageHeader(rArea, psp::ImageType::PaletteImage);
 
-    std::unique_ptr<ByteEncoder> xEncoder(new LZWEncoder(mpPageBody));
+    LZWEncoder aEncoder(mpPageBody);
 
     for (tools::Long nRow = rArea.Top(); nRow <= rArea.Bottom(); nRow++)
     {
         for (tools::Long nColumn = rArea.Left(); nColumn <= rArea.Right(); nColumn++)
         {
             unsigned char nByte = rBitmap.GetPixelIdx (nRow, nColumn);
-            xEncoder->EncodeByte (nByte);
+            aEncoder.EncodeByte (nByte);
         }
     }
 }
@@ -678,16 +655,16 @@ PrinterGfx::DrawPS2TrueColorImage (const PrinterBmp& rBitmap, const tools::Recta
     writePS2Colorspace(rBitmap, psp::ImageType::TrueColorImage);
     writePS2ImageHeader(rArea, psp::ImageType::TrueColorImage);
 
-    std::unique_ptr<ByteEncoder> xEncoder(new LZWEncoder(mpPageBody));
+    LZWEncoder aEncoder(mpPageBody);
 
     for (tools::Long nRow = rArea.Top(); nRow <= rArea.Bottom(); nRow++)
     {
         for (tools::Long nColumn = rArea.Left(); nColumn <= rArea.Right(); nColumn++)
         {
             PrinterColor aColor = rBitmap.GetPixelRGB (nRow, nColumn);
-            xEncoder->EncodeByte (aColor.GetRed());
-            xEncoder->EncodeByte (aColor.GetGreen());
-            xEncoder->EncodeByte (aColor.GetBlue());
+            aEncoder.EncodeByte (aColor.GetRed());
+            aEncoder.EncodeByte (aColor.GetGreen());
+            aEncoder.EncodeByte (aColor.GetBlue());
         }
     }
 }