The Tor Browser: gfx/thebes/gfxQtPlatform.h@b8a032363ba2

Incorporate requested changes from Mozilla in review:
https://bugzilla.mozilla.org/show_bug.cgi?id=1123480#c6

     1 /* -*- Mode: C++; tab-width: 20; indent-tabs-mode: nil; c-basic-offset: 4 -*-

     2  * This Source Code Form is subject to the terms of the Mozilla Public

     3  * License, v. 2.0. If a copy of the MPL was not distributed with this

     4  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */

     6 #ifndef GFX_PLATFORM_QT_H

     7 #define GFX_PLATFORM_QT_H

     9 #include "gfxPlatform.h"

    10 #include "nsAutoRef.h"

    11 #include "nsDataHashtable.h"

    12 #include "nsTArray.h"

    13 #ifdef MOZ_X11

    14 #include "X11/Xlib.h"

    15 #endif

    17 class gfxImageSurface;

    18 class gfxFontconfigUtils;

    19 class QWindow;

    21 class gfxQtPlatform : public gfxPlatform {

    22 public:

    23     gfxQtPlatform();

    24     virtual ~gfxQtPlatform();

    26     static gfxQtPlatform *GetPlatform() {

    27         return static_cast<gfxQtPlatform*>(gfxPlatform::GetPlatform());

    28     }

    30     virtual already_AddRefed<gfxASurface>

    31     OptimizeImage(gfxImageSurface *aSurface,

    32                   gfxImageFormat format) MOZ_OVERRIDE;

    33     virtual already_AddRefed<gfxASurface>

    34       CreateOffscreenSurface(const IntSize& size,

    35                              gfxContentType contentType) MOZ_OVERRIDE;

    37     virtual mozilla::TemporaryRef<mozilla::gfx::ScaledFont>

    38       GetScaledFontForFont(mozilla::gfx::DrawTarget* aTarget, gfxFont *aFont) MOZ_OVERRIDE;

    40     virtual nsresult GetFontList(nsIAtom *aLangGroup,

    41                                  const nsACString& aGenericFamily,

    42                                  nsTArray<nsString>& aListOfFonts) MOZ_OVERRIDE;

    44     virtual nsresult UpdateFontList() MOZ_OVERRIDE;

    46     virtual nsresult ResolveFontName(const nsAString& aFontName,

    47                                      FontResolverCallback aCallback,

    48                                      void *aClosure, bool& aAborted) MOZ_OVERRIDE;

    50     virtual nsresult GetStandardFamilyName(const nsAString& aFontName, nsAString& aFamilyName) MOZ_OVERRIDE;

    52     virtual gfxFontGroup *CreateFontGroup(const nsAString &aFamilies,

    53                                           const gfxFontStyle *aStyle,

    54                                           gfxUserFontSet* aUserFontSet) MOZ_OVERRIDE;

    56     /**

    57      * Look up a local platform font using the full font face name (needed to

    58      * support @font-face src local() )

    59      */

    60     virtual gfxFontEntry* LookupLocalFont(const gfxProxyFontEntry *aProxyEntry,

    61                                           const nsAString& aFontName) MOZ_OVERRIDE;

    63     /**

    64      * Activate a platform font (needed to support @font-face src url() )

    65      *

    66      */

    67     virtual gfxFontEntry* MakePlatformFont(const gfxProxyFontEntry *aProxyEntry,

    68                                            const uint8_t *aFontData,

    69                                            uint32_t aLength) MOZ_OVERRIDE;

    71     /**

    72      * Check whether format is supported on a platform or not (if unclear,

    73      * returns true).

    74      */

    75     virtual bool IsFontFormatSupported(nsIURI *aFontURI,

    76                                        uint32_t aFormatFlags) MOZ_OVERRIDE;

    78     virtual void ClearPrefFonts() { mPrefFonts.Clear(); }

    80     static int32_t GetDPI();

    82     virtual gfxImageFormat GetOffscreenFormat() MOZ_OVERRIDE;

    83 #ifdef MOZ_X11

    84     static Display* GetXDisplay(QWindow* aWindow = 0);

    85     static Screen* GetXScreen(QWindow* aWindow = 0);

    86 #endif

    88     virtual int GetScreenDepth() const MOZ_OVERRIDE;

    90     virtual bool SupportsOffMainThreadCompositing() MOZ_OVERRIDE;

    92 protected:

    93     static gfxFontconfigUtils *sFontconfigUtils;

    95 private:

    97     bool UseXRender() {

    98 #if defined(MOZ_X11)

    99         if (GetContentBackend() != mozilla::gfx::BackendType::NONE &&

   100             GetContentBackend() != mozilla::gfx::BackendType::CAIRO)

   101             return false;

   103         return sUseXRender;

   104 #else

   105         return false;

   106 #endif

   107     }

   109     virtual void GetPlatformCMSOutputProfile(void *&mem, size_t &size) MOZ_OVERRIDE;

   111     // TODO: unify this with mPrefFonts (NB: holds families, not fonts) in gfxPlatformFontList

   112     nsDataHashtable<nsCStringHashKey, nsTArray<nsRefPtr<gfxFontEntry> > > mPrefFonts;

   114     int mScreenDepth;

   115 #ifdef MOZ_X11

   116     static bool sUseXRender;

   117 #endif

   118 };

   120 #endif /* GFX_PLATFORM_QT_H */

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