diff options
Diffstat (limited to 'core/fxcrt')
| -rw-r--r-- | core/fxcrt/fx_coordinates.h | 376 |
1 files changed, 192 insertions, 184 deletions
diff --git a/core/fxcrt/fx_coordinates.h b/core/fxcrt/fx_coordinates.h index 517365ad64..86b921d85c 100644 --- a/core/fxcrt/fx_coordinates.h +++ b/core/fxcrt/fx_coordinates.h @@ -194,6 +194,186 @@ using CFX_VectorF = CFX_VTemplate<float>; // Rectangles. // TODO(tsepez): Consolidate all these different rectangle classes. +// LTRB rectangles (y-axis runs downwards). +struct FX_RECT { + FX_RECT() : left(0), top(0), right(0), bottom(0) {} + FX_RECT(int l, int t, int r, int b) : left(l), top(t), right(r), bottom(b) {} + + int Width() const { return right - left; } + int Height() const { return bottom - top; } + bool IsEmpty() const { return right <= left || bottom <= top; } + + bool Valid() const { + pdfium::base::CheckedNumeric<int> w = right; + pdfium::base::CheckedNumeric<int> h = bottom; + w -= left; + h -= top; + return w.IsValid() && h.IsValid(); + } + + void Normalize(); + + void Intersect(const FX_RECT& src); + void Intersect(int l, int t, int r, int b) { Intersect(FX_RECT(l, t, r, b)); } + + void Offset(int dx, int dy) { + left += dx; + right += dx; + top += dy; + bottom += dy; + } + + bool operator==(const FX_RECT& src) const { + return left == src.left && right == src.right && top == src.top && + bottom == src.bottom; + } + + bool Contains(int x, int y) const { + return x >= left && x < right && y >= top && y < bottom; + } + + int32_t left; + int32_t top; + int32_t right; + int32_t bottom; +}; + +// LTRB rectangles (y-axis runs upwards). +class CFX_FloatRect { + public: + CFX_FloatRect() : CFX_FloatRect(0.0f, 0.0f, 0.0f, 0.0f) {} + CFX_FloatRect(float l, float b, float r, float t) + : left(l), bottom(b), right(r), top(t) {} + + explicit CFX_FloatRect(const float* pArray) + : CFX_FloatRect(pArray[0], pArray[1], pArray[2], pArray[3]) {} + + explicit CFX_FloatRect(const FX_RECT& rect); + + void Normalize(); + + void Reset() { + left = 0.0f; + right = 0.0f; + bottom = 0.0f; + top = 0.0f; + } + + bool IsEmpty() const { return left >= right || bottom >= top; } + + bool Contains(const CFX_PointF& point) const; + bool Contains(const CFX_FloatRect& other_rect) const; + + void Intersect(const CFX_FloatRect& other_rect); + void Union(const CFX_FloatRect& other_rect); + + FX_RECT GetInnerRect() const; + FX_RECT GetOuterRect() const; + FX_RECT GetClosestRect() const; + CFX_FloatRect GetCenterSquare() const; + + int Substract4(CFX_FloatRect& substract_rect, CFX_FloatRect* pRects); + + void InitRect(float x, float y) { + left = x; + right = x; + bottom = y; + top = y; + } + void UpdateRect(float x, float y); + + float Width() const { return right - left; } + float Height() const { return top - bottom; } + + void Inflate(float x, float y) { + Normalize(); + left -= x; + right += x; + bottom -= y; + top += y; + } + + void Inflate(float other_left, + float other_bottom, + float other_right, + float other_top) { + Normalize(); + left -= other_left; + bottom -= other_bottom; + right += other_right; + top += other_top; + } + + void Inflate(const CFX_FloatRect& rt) { + Inflate(rt.left, rt.bottom, rt.right, rt.top); + } + + void Deflate(float x, float y) { + Normalize(); + left += x; + right -= x; + bottom += y; + top -= y; + } + + void Deflate(float other_left, + float other_bottom, + float other_right, + float other_top) { + Normalize(); + left += other_left; + bottom += other_bottom; + right -= other_right; + top -= other_top; + } + + void Deflate(const CFX_FloatRect& rt) { + Deflate(rt.left, rt.bottom, rt.right, rt.top); + } + + CFX_FloatRect GetDeflated(float x, float y) const { + if (IsEmpty()) + return CFX_FloatRect(); + + CFX_FloatRect that = *this; + that.Deflate(x, y); + that.Normalize(); + return that; + } + + void Translate(float e, float f) { + left += e; + right += e; + top += f; + bottom += f; + } + + void Scale(float fScale) { + float fHalfWidth = (right - left) / 2.0f; + float fHalfHeight = (top - bottom) / 2.0f; + + float center_x = (left + right) / 2; + float center_y = (top + bottom) / 2; + + left = center_x - fHalfWidth * fScale; + bottom = center_y - fHalfHeight * fScale; + right = center_x + fHalfWidth * fScale; + top = center_y + fHalfHeight * fScale; + } + + static CFX_FloatRect GetBBox(const CFX_PointF* pPoints, int nPoints); + + FX_RECT ToFxRect() const { + return FX_RECT(static_cast<int32_t>(left), static_cast<int32_t>(top), + static_cast<int32_t>(right), static_cast<int32_t>(bottom)); + } + + float left; + float bottom; + float right; + float top; +}; + // LTWH rectangles (y-axis runs downwards). template <class BaseType> class CFX_RTemplate { @@ -230,6 +410,12 @@ class CFX_RTemplate { Normalize(); } + explicit CFX_RTemplate(const CFX_FloatRect& r) + : left(static_cast<BaseType>(r.left)), + top(static_cast<BaseType>(r.top)), + width(static_cast<BaseType>(r.Width())), + height(static_cast<BaseType>(r.Height())) {} + // NOLINTNEXTLINE(runtime/explicit) CFX_RTemplate(const RectType& other) : left(other.left), @@ -394,6 +580,12 @@ class CFX_RTemplate { return !(rc1 == rc2); } + CFX_FloatRect ToFloatRect() const { + // Note, we flip top/bottom here because the CFX_FloatRect has the + // y-axis running in the opposite direction. + return CFX_FloatRect(left, top, right(), bottom()); + } + BaseType left; BaseType top; BaseType width; @@ -402,190 +594,6 @@ class CFX_RTemplate { using CFX_Rect = CFX_RTemplate<int32_t>; using CFX_RectF = CFX_RTemplate<float>; -// LTRB rectangles (y-axis runs downwards). -struct FX_RECT { - FX_RECT() : left(0), top(0), right(0), bottom(0) {} - FX_RECT(int l, int t, int r, int b) : left(l), top(t), right(r), bottom(b) {} - - int Width() const { return right - left; } - int Height() const { return bottom - top; } - bool IsEmpty() const { return right <= left || bottom <= top; } - - bool Valid() const { - pdfium::base::CheckedNumeric<int> w = right; - pdfium::base::CheckedNumeric<int> h = bottom; - w -= left; - h -= top; - return w.IsValid() && h.IsValid(); - } - - void Normalize(); - - void Intersect(const FX_RECT& src); - void Intersect(int l, int t, int r, int b) { Intersect(FX_RECT(l, t, r, b)); } - - void Offset(int dx, int dy) { - left += dx; - right += dx; - top += dy; - bottom += dy; - } - - bool operator==(const FX_RECT& src) const { - return left == src.left && right == src.right && top == src.top && - bottom == src.bottom; - } - - bool Contains(int x, int y) const { - return x >= left && x < right && y >= top && y < bottom; - } - - int32_t left; - int32_t top; - int32_t right; - int32_t bottom; -}; - -// LBRT rectangles (y-axis runs upwards). -class CFX_FloatRect { - public: - CFX_FloatRect() : CFX_FloatRect(0.0f, 0.0f, 0.0f, 0.0f) {} - CFX_FloatRect(float l, float b, float r, float t) - : left(l), bottom(b), right(r), top(t) {} - - explicit CFX_FloatRect(const float* pArray) - : CFX_FloatRect(pArray[0], pArray[1], pArray[2], pArray[3]) {} - - explicit CFX_FloatRect(const FX_RECT& rect); - - void Normalize(); - - void Reset() { - left = 0.0f; - right = 0.0f; - bottom = 0.0f; - top = 0.0f; - } - - bool IsEmpty() const { return left >= right || bottom >= top; } - - bool Contains(const CFX_PointF& point) const; - bool Contains(const CFX_FloatRect& other_rect) const; - - void Intersect(const CFX_FloatRect& other_rect); - void Union(const CFX_FloatRect& other_rect); - - FX_RECT GetInnerRect() const; - FX_RECT GetOuterRect() const; - FX_RECT GetClosestRect() const; - CFX_FloatRect GetCenterSquare() const; - - int Substract4(CFX_FloatRect& substract_rect, CFX_FloatRect* pRects); - - void InitRect(float x, float y) { - left = x; - right = x; - bottom = y; - top = y; - } - void UpdateRect(float x, float y); - - float Width() const { return right - left; } - float Height() const { return top - bottom; } - - void Inflate(float x, float y) { - Normalize(); - left -= x; - right += x; - bottom -= y; - top += y; - } - - void Inflate(float other_left, - float other_bottom, - float other_right, - float other_top) { - Normalize(); - left -= other_left; - bottom -= other_bottom; - right += other_right; - top += other_top; - } - - void Inflate(const CFX_FloatRect& rt) { - Inflate(rt.left, rt.bottom, rt.right, rt.top); - } - - void Deflate(float x, float y) { - Normalize(); - left += x; - right -= x; - bottom += y; - top -= y; - } - - void Deflate(float other_left, - float other_bottom, - float other_right, - float other_top) { - Normalize(); - left += other_left; - bottom += other_bottom; - right -= other_right; - top -= other_top; - } - - void Deflate(const CFX_FloatRect& rt) { - Deflate(rt.left, rt.bottom, rt.right, rt.top); - } - - CFX_FloatRect GetDeflated(float x, float y) const { - if (IsEmpty()) - return CFX_FloatRect(); - - CFX_FloatRect that = *this; - that.Deflate(x, y); - that.Normalize(); - return that; - } - - void Translate(float e, float f) { - left += e; - right += e; - top += f; - bottom += f; - } - - void Scale(float fScale) { - float fHalfWidth = (right - left) / 2.0f; - float fHalfHeight = (top - bottom) / 2.0f; - - float center_x = (left + right) / 2; - float center_y = (top + bottom) / 2; - - left = center_x - fHalfWidth * fScale; - bottom = center_y - fHalfHeight * fScale; - right = center_x + fHalfWidth * fScale; - top = center_y + fHalfHeight * fScale; - } - - static CFX_FloatRect GetBBox(const CFX_PointF* pPoints, int nPoints); - - FX_RECT ToFxRect() const { - return FX_RECT(static_cast<int32_t>(left), static_cast<int32_t>(top), - static_cast<int32_t>(right), static_cast<int32_t>(bottom)); - } - - static CFX_FloatRect FromCFXRectF(const CFX_RectF& rect) { - return CFX_FloatRect(rect.left, rect.top, rect.right(), rect.bottom()); - } - - float left; - float bottom; - float right; - float top; -}; - // The matrix is of the form: // | a b 0 | // | c d 0 | |