Use override in more classes in core/

core/include/fxge/fx_dib.h

 // Copyright 2014 PDFium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 // Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com
 
 #ifndef CORE_INCLUDE_FXGE_FX_DIB_H_
 #define CORE_INCLUDE_FXGE_FX_DIB_H_
 
 #include "../fxcrt/fx_basic.h"
@@ skipping 51 matching lines @@
 #define FXDIB_BLEND_SATURATION 22
 #define FXDIB_BLEND_COLOR 23
 #define FXDIB_BLEND_LUMINOSITY 24
 #define FXDIB_BLEND_UNSUPPORTED -1
 typedef FX_DWORD FX_ARGB;
 typedef FX_DWORD FX_COLORREF;
 typedef FX_DWORD FX_CMYK;
 class CFX_ClipRgn;
 class CFX_DIBSource;
 class CFX_DIBitmap;
+class CStretchEngine;
+
 #define FXSYS_RGB(r, g, b) ((r) | ((g) << 8) | ((b) << 16))
 #define FXSYS_GetRValue(rgb) ((rgb)&0xff)
 #define FXSYS_GetGValue(rgb) (((rgb) >> 8) & 0xff)
 #define FXSYS_GetBValue(rgb) (((rgb) >> 16) & 0xff)
 #define FX_CCOLOR(val) (255 - (val))
 #define FXSYS_CMYK(c, m, y, k) (((c) << 24) | ((m) << 16) | ((y) << 8) | (k))
 #define FXSYS_GetCValue(cmyk) ((uint8_t)((cmyk) >> 24) & 0xff)
 #define FXSYS_GetMValue(cmyk) ((uint8_t)((cmyk) >> 16) & 0xff)
 #define FXSYS_GetYValue(cmyk) ((uint8_t)((cmyk) >> 8) & 0xff)
 #define FXSYS_GetKValue(cmyk) ((uint8_t)(cmyk)&0xff)
@@ skipping 192 matching lines @@
   void BuildPalette();
 
   FX_BOOL BuildAlphaMask();
 
   int FindPalette(FX_DWORD color) const;
 
   void GetPalette(FX_DWORD* pal, int alpha) const;
 };
 class CFX_DIBitmap : public CFX_DIBSource {
  public:
-  virtual ~CFX_DIBitmap();
-
   CFX_DIBitmap();
-
-  CFX_DIBitmap(const CFX_DIBitmap& src);
+  explicit CFX_DIBitmap(const CFX_DIBitmap& src);
+  ~CFX_DIBitmap() override;
 
   FX_BOOL Create(int width,
                  int height,
                  FXDIB_Format format,
                  uint8_t* pBuffer = NULL,
                  int pitch = 0);
 
   FX_BOOL Copy(const CFX_DIBSource* pSrc);
 
-  virtual uint8_t* GetBuffer() const { return m_pBuffer; }
-
-  virtual const uint8_t* GetScanline(int line) const {
+  // CFX_DIBSource
+  uint8_t* GetBuffer() const override { return m_pBuffer; }
+  const uint8_t* GetScanline(int line) const override {
     return m_pBuffer ? m_pBuffer + line * m_Pitch : NULL;
   }
-
-  virtual void DownSampleScanline(int line,
-                                  uint8_t* dest_scan,
-                                  int dest_bpp,
-                                  int dest_width,
-                                  FX_BOOL bFlipX,
-                                  int clip_left,
-                                  int clip_width) const;
+  void DownSampleScanline(int line,
+                          uint8_t* dest_scan,
+                          int dest_bpp,
+                          int dest_width,
+                          FX_BOOL bFlipX,
+                          int clip_left,
+                          int clip_width) const override;
 
   void TakeOver(CFX_DIBitmap* pSrcBitmap);
 
   FX_BOOL ConvertFormat(FXDIB_Format format, void* pIccTransform = NULL);
 
   void Clear(FX_DWORD color);
 
   FX_DWORD GetPixel(int x, int y) const;
 
   void SetPixel(int x, int y, FX_DWORD color);
@@ skipping 79 matching lines @@
  public:
   CFX_DIBExtractor(const CFX_DIBSource* pSrc);
 
   ~CFX_DIBExtractor();
 
   operator CFX_DIBitmap*() { return m_pBitmap; }
 
  private:
   CFX_DIBitmap* m_pBitmap;
 };
+
 typedef CFX_CountRef<CFX_DIBitmap> CFX_DIBitmapRef;
 class CFX_FilteredDIB : public CFX_DIBSource {
  public:
   CFX_FilteredDIB();
-
-  ~CFX_FilteredDIB();
+  ~CFX_FilteredDIB() override;
 
   void LoadSrc(const CFX_DIBSource* pSrc, FX_BOOL bAutoDropSrc = FALSE);
 
   virtual FXDIB_Format GetDestFormat() = 0;
 
   virtual FX_DWORD* GetDestPalette() = 0;
 
   virtual void TranslateScanline(uint8_t* dest_buf,
                                  const uint8_t* src_buf) const = 0;
 
   virtual void TranslateDownSamples(uint8_t* dest_buf,
                                     const uint8_t* src_buf,
                                     int pixels,
                                     int Bpp) const = 0;
 
  protected:
-  virtual const uint8_t* GetScanline(int line) const;
-  virtual void DownSampleScanline(int line,
-                                  uint8_t* dest_scan,
-                                  int dest_bpp,
-                                  int dest_width,
-                                  FX_BOOL bFlipX,
-                                  int clip_left,
-                                  int clip_width) const;
+  // CFX_DIBSource
+  const uint8_t* GetScanline(int line) const override;
+  void DownSampleScanline(int line,
+                          uint8_t* dest_scan,
+                          int dest_bpp,
+                          int dest_width,
+                          FX_BOOL bFlipX,
+                          int clip_left,
+                          int clip_width) const override;
 
   const CFX_DIBSource* m_pSrc;
 
   FX_BOOL m_bAutoDropSrc;
 
   uint8_t* m_pScanline;
 };
+
 class IFX_ScanlineComposer {
  public:
   virtual ~IFX_ScanlineComposer() {}
 
   virtual void ComposeScanline(int line,
                                const uint8_t* scanline,
                                const uint8_t* scan_extra_alpha = NULL) = 0;
 
   virtual FX_BOOL SetInfo(int width,
                           int height,
@@ skipping 50 matching lines @@
   FXDIB_Format m_SrcFormat, m_DestFormat;
   FX_DWORD* m_pSrcPalette;
 
   int m_MaskAlpha, m_MaskRed, m_MaskGreen, m_MaskBlue, m_MaskBlack;
   int m_BlendType;
   void* m_pIccTransform;
   uint8_t* m_pCacheScanline;
   int m_CacheSize;
   FX_BOOL m_bRgbByteOrder;
 };
+
 class CFX_BitmapComposer : public IFX_ScanlineComposer {
  public:
   CFX_BitmapComposer();
-
-  ~CFX_BitmapComposer();
+  ~CFX_BitmapComposer() override;
 
   void Compose(CFX_DIBitmap* pDest,
                const CFX_ClipRgn* pClipRgn,
                int bitmap_alpha,
                FX_DWORD mask_color,
                FX_RECT& dest_rect,
                FX_BOOL bVertical,
                FX_BOOL bFlipX,
                FX_BOOL bFlipY,
                FX_BOOL bRgbByteOrder = FALSE,
                int alpha_flag = 0,
                void* pIccTransform = NULL,
                int blend_type = FXDIB_BLEND_NORMAL);
 
-  virtual FX_BOOL SetInfo(int width,
-                          int height,
-                          FXDIB_Format src_format,
-                          FX_DWORD* pSrcPalette);
+  // IFX_ScanlineComposer
+  FX_BOOL SetInfo(int width,
+                  int height,
+                  FXDIB_Format src_format,
+                  FX_DWORD* pSrcPalette) override;
 
-  virtual void ComposeScanline(int line,
-                               const uint8_t* scanline,
-                               const uint8_t* scan_extra_alpha);
+  void ComposeScanline(int line,
+                       const uint8_t* scanline,
+                       const uint8_t* scan_extra_alpha) override;
 
  protected:
   void DoCompose(uint8_t* dest_scan,
                  const uint8_t* src_scan,
                  int dest_width,
                  const uint8_t* clip_scan,
                  const uint8_t* src_extra_alpha = NULL,
                  uint8_t* dst_extra_alpha = NULL);
   CFX_DIBitmap* m_pBitmap;
   const CFX_ClipRgn* m_pClipRgn;
   FXDIB_Format m_SrcFormat;
   int m_DestLeft, m_DestTop, m_DestWidth, m_DestHeight, m_BitmapAlpha;
   FX_DWORD m_MaskColor;
   const CFX_DIBitmap* m_pClipMask;
   CFX_ScanlineCompositor m_Compositor;
   FX_BOOL m_bVertical, m_bFlipX, m_bFlipY;
   int m_AlphaFlag;
   void* m_pIccTransform;
   FX_BOOL m_bRgbByteOrder;
   int m_BlendType;
   void ComposeScanlineV(int line,
                         const uint8_t* scanline,
                         const uint8_t* scan_extra_alpha = NULL);
   uint8_t* m_pScanlineV;
   uint8_t* m_pClipScanV;
   uint8_t* m_pAddClipScan;
   uint8_t* m_pScanlineAlphaV;
 };
+
 class CFX_BitmapStorer : public IFX_ScanlineComposer {
  public:
   CFX_BitmapStorer();
+  ~CFX_BitmapStorer() override;
 
-  ~CFX_BitmapStorer();
+  // IFX_ScanlineComposer
+  void ComposeScanline(int line,
+                       const uint8_t* scanline,
+                       const uint8_t* scan_extra_alpha) override;
 
-  virtual void ComposeScanline(int line,
-                               const uint8_t* scanline,
-                               const uint8_t* scan_extra_alpha);
-
-  virtual FX_BOOL SetInfo(int width,
-                          int height,
-                          FXDIB_Format src_format,
-                          FX_DWORD* pSrcPalette);
+  FX_BOOL SetInfo(int width,
+                  int height,
+                  FXDIB_Format src_format,
+                  FX_DWORD* pSrcPalette) override;
 
   CFX_DIBitmap* GetBitmap() { return m_pBitmap; }
 
   CFX_DIBitmap* Detach();
 
   void Replace(CFX_DIBitmap* pBitmap);
 
  private:
   CFX_DIBitmap* m_pBitmap;
 };
-class CStretchEngine;
+
 class CFX_ImageStretcher {
  public:
   CFX_ImageStretcher();
   ~CFX_ImageStretcher();
 
   FX_BOOL Start(IFX_ScanlineComposer* pDest,
                 const CFX_DIBSource* pBitmap,
                 int dest_width,
                 int dest_height,
                 const FX_RECT& bitmap_rect,
@@ skipping 75 matching lines @@
   int m_Status;
   FX_RECT m_ClipBox;
   FX_DWORD m_Flags;
   int m_AlphaFlag;
   void* m_pIccTransform;
   FX_BOOL m_bRgbByteOrder;
   int m_BlendType;
 };
 
 #endif  // CORE_INCLUDE_FXGE_FX_DIB_H_