michael@0: /* -*- Mode: C++; tab-width: 20; indent-tabs-mode: nil; c-basic-offset: 4 -*-
michael@0:  * This Source Code Form is subject to the terms of the Mozilla Public
michael@0:  * License, v. 2.0. If a copy of the MPL was not distributed with this
michael@0:  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
michael@0: 
michael@0: #ifndef GFX_PLATFORM_GTK_H
michael@0: #define GFX_PLATFORM_GTK_H
michael@0: 
michael@0: #include "gfxPlatform.h"
michael@0: #include "nsAutoRef.h"
michael@0: #include "nsTArray.h"
michael@0: 
michael@0: #if (MOZ_WIDGET_GTK == 2)
michael@0: extern "C" {
michael@0:     typedef struct _GdkDrawable GdkDrawable;
michael@0: }
michael@0: #endif
michael@0: 
michael@0: class gfxFontconfigUtils;
michael@0: 
michael@0: class gfxPlatformGtk : public gfxPlatform {
michael@0: public:
michael@0:     gfxPlatformGtk();
michael@0:     virtual ~gfxPlatformGtk();
michael@0: 
michael@0:     static gfxPlatformGtk *GetPlatform() {
michael@0:         return (gfxPlatformGtk*) gfxPlatform::GetPlatform();
michael@0:     }
michael@0: 
michael@0:     virtual already_AddRefed<gfxASurface>
michael@0:       CreateOffscreenSurface(const IntSize& size,
michael@0:                              gfxContentType contentType) MOZ_OVERRIDE;
michael@0: 
michael@0:     mozilla::TemporaryRef<mozilla::gfx::ScaledFont>
michael@0:       GetScaledFontForFont(mozilla::gfx::DrawTarget* aTarget, gfxFont *aFont);
michael@0: 
michael@0:     nsresult GetFontList(nsIAtom *aLangGroup,
michael@0:                          const nsACString& aGenericFamily,
michael@0:                          nsTArray<nsString>& aListOfFonts);
michael@0: 
michael@0:     nsresult UpdateFontList();
michael@0: 
michael@0:     nsresult ResolveFontName(const nsAString& aFontName,
michael@0:                              FontResolverCallback aCallback,
michael@0:                              void *aClosure, bool& aAborted);
michael@0: 
michael@0:     nsresult GetStandardFamilyName(const nsAString& aFontName, nsAString& aFamilyName);
michael@0: 
michael@0:     gfxFontGroup *CreateFontGroup(const nsAString &aFamilies,
michael@0:                                   const gfxFontStyle *aStyle,
michael@0:                                   gfxUserFontSet *aUserFontSet);
michael@0: 
michael@0:     /**
michael@0:      * Look up a local platform font using the full font face name (needed to
michael@0:      * support @font-face src local() )
michael@0:      */
michael@0:     virtual gfxFontEntry* LookupLocalFont(const gfxProxyFontEntry *aProxyEntry,
michael@0:                                           const nsAString& aFontName);
michael@0: 
michael@0:     /**
michael@0:      * Activate a platform font (needed to support @font-face src url() )
michael@0:      *
michael@0:      */
michael@0:     virtual gfxFontEntry* MakePlatformFont(const gfxProxyFontEntry *aProxyEntry,
michael@0:                                            const uint8_t *aFontData,
michael@0:                                            uint32_t aLength);
michael@0: 
michael@0:     /**
michael@0:      * Check whether format is supported on a platform or not (if unclear,
michael@0:      * returns true).
michael@0:      */
michael@0:     virtual bool IsFontFormatSupported(nsIURI *aFontURI,
michael@0:                                          uint32_t aFormatFlags);
michael@0: 
michael@0: #if (MOZ_WIDGET_GTK == 2)
michael@0:     static void SetGdkDrawable(cairo_surface_t *target,
michael@0:                                GdkDrawable *drawable);
michael@0:     static GdkDrawable *GetGdkDrawable(cairo_surface_t *target);
michael@0: #endif
michael@0: 
michael@0:     static int32_t GetDPI();
michael@0: 
michael@0:     bool UseXRender() {
michael@0: #if defined(MOZ_X11)
michael@0:         if (GetContentBackend() != mozilla::gfx::BackendType::NONE &&
michael@0:             GetContentBackend() != mozilla::gfx::BackendType::CAIRO)
michael@0:             return false;
michael@0: 
michael@0:         return sUseXRender;
michael@0: #else
michael@0:         return false;
michael@0: #endif
michael@0:     }
michael@0: 
michael@0:     virtual gfxImageFormat GetOffscreenFormat();
michael@0: 
michael@0:     virtual int GetScreenDepth() const;
michael@0: 
michael@0: protected:
michael@0:     static gfxFontconfigUtils *sFontconfigUtils;
michael@0: 
michael@0: private:
michael@0:     virtual void GetPlatformCMSOutputProfile(void *&mem, size_t &size);
michael@0: 
michael@0:     virtual bool SupportsOffMainThreadCompositing();
michael@0: #ifdef MOZ_X11
michael@0:     static bool sUseXRender;
michael@0: #endif
michael@0: };
michael@0: 
michael@0: #endif /* GFX_PLATFORM_GTK_H */