diff options
Diffstat (limited to 'include/ui/Region.h')
| -rw-r--r-- | include/ui/Region.h | 17 |
1 files changed, 10 insertions, 7 deletions
diff --git a/include/ui/Region.h b/include/ui/Region.h index 0d1c68c..2a14918 100644 --- a/include/ui/Region.h +++ b/include/ui/Region.h @@ -35,6 +35,8 @@ class String8; class Region : public LightFlattenable<Region> { public: + static const Region INVALID_REGION; + Region(); Region(const Region& rhs); explicit Region(const Rect& rhs); @@ -55,11 +57,12 @@ public: // the region becomes its bounds Region& makeBoundsSelf(); - + void clear(); void set(const Rect& r); + void set(int32_t w, int32_t h); void set(uint32_t w, uint32_t h); - + Region& orSelf(const Rect& rhs); Region& xorSelf(const Rect& rhs); Region& andSelf(const Rect& rhs); @@ -110,14 +113,14 @@ public: inline Region& operator -= (const Region& rhs); inline Region& operator += (const Point& pt); - + // returns true if the regions share the same underlying storage bool isTriviallyEqual(const Region& region) const; /* various ways to access the rectangle list */ - + // STL-like iterators typedef Rect const* const_iterator; const_iterator begin() const; @@ -133,7 +136,7 @@ public: SharedBuffer const* getSharedBuffer(size_t* count) const; /* no user serviceable parts here... */ - + // add a rectangle to the internal list. This rectangle must // be sorted in Y and X and must not make the region invalid. void addRectUnchecked(int l, int t, int r, int b); @@ -149,7 +152,7 @@ public: private: class rasterizer; friend class rasterizer; - + Region& operationSelf(const Rect& r, int op); Region& operationSelf(const Region& r, int op); Region& operationSelf(const Region& r, int dx, int dy, int op); @@ -172,7 +175,7 @@ private: static bool validate(const Region& reg, const char* name, bool silent = false); - + // mStorage is a (manually) sorted array of Rects describing the region // with an extra Rect as the last element which is set to the // bounds of the region. However, if the region is |