edfe6703fa
move the #Line directive to make bookmaker happy Docs-Preview: https://skia.org/?cl=108740 Bug: skia:6898 Change-Id: I8b993bab6b4f69cc266941e281a00a945f32f25e Reviewed-on: https://skia-review.googlesource.com/108740 Commit-Queue: Cary Clark <caryclark@skia.org> Reviewed-by: Cary Clark <caryclark@skia.org>
2937 lines
98 KiB
Markdown
2937 lines
98 KiB
Markdown
SkRect Reference
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===
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# <a name="Rect"></a> Rect
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## <a name="Overview"></a> Overview
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## <a name="Overview_Subtopic"></a> Overview Subtopic
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| name | description |
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| --- | --- |
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| <a href="#Constructor">Constructor</a> | functions that construct <a href="#SkRect">SkRect</a> |
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| <a href="#Member_Function">Member Function</a> | static functions and member methods |
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| <a href="#Member">Member</a> | member values |
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| <a href="#Operator">Operator</a> | operator overloading methods |
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| <a href="#Related_Function">Related Function</a> | similar methods grouped together |
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# <a name="SkRect"></a> Struct SkRect
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<a href="#SkRect">SkRect</a> holds four <a href="undocumented#SkScalar">SkScalar</a> coordinates describing the upper and
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lower bounds of a rectangle. <a href="#SkRect">SkRect</a> may be created from outer bounds or
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from position, width, and height. <a href="#SkRect">SkRect</a> describes an area; if its right
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is less than or equal to its left, or if its bottom is less than or equal to
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its top, it is considered empty.
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<a href="#SkRect">SkRect</a> can be constructed from int values to avoid compiler warnings that
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integer input cannot convert to <a href="undocumented#SkScalar">SkScalar</a> without loss of precision.
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## <a name="Related_Function"></a> Related Function
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| name | description |
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| --- | --- |
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| <a href="#As_Points">As Points</a> | conversion to and from <a href="SkPoint_Reference#Point">Points</a> |
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| <a href="#From_Integers">From Integers</a> | set <a href="undocumented#Scalar">Scalar</a> values from integer input |
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| <a href="#Inset_Outset_Offset">Inset Outset Offset</a> | moves sides |
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| <a href="#Intersection">Intersection</a> | set to shared bounds |
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| <a href="#Join">Join</a> | set to union of bounds |
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| <a href="#Property">Property</a> | member values, center, validity |
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| <a href="#Rounding">Rounding</a> | adjust to integer bounds |
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| <a href="#Set">Set</a> | replaces all values |
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| <a href="#Sorting">Sorting</a> | orders sides |
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## <a name="Member_Function"></a> Member Function
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| name | description |
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| --- | --- |
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| <a href="#SkRect_Intersects">Intersects</a> | returns true if areas overlap |
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| <a href="#SkRect_Make">Make</a> | constructs from <a href="undocumented#ISize">ISize</a> returning (0, 0, width, height) |
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| <a href="#SkRect_MakeEmpty">MakeEmpty</a> | constructs from bounds of (0, 0, 0, 0) |
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| <a href="#SkRect_MakeIWH">MakeIWH</a> | constructs from int input returning (0, 0, width, height) |
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| <a href="#SkRect_MakeLTRB">MakeLTRB</a> | constructs from <a href="undocumented#SkScalar">SkScalar</a> left, top, right, bottom |
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| <a href="#SkRect_MakeSize">MakeSize</a> | constructs from <a href="undocumented#Size">Size</a> returning (0, 0, width, height) |
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| <a href="#SkRect_MakeWH">MakeWH</a> | constructs from <a href="undocumented#SkScalar">SkScalar</a> input returning (0, 0, width, height) |
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| <a href="#SkRect_MakeXYWH">MakeXYWH</a> | constructs from <a href="undocumented#SkScalar">SkScalar</a> input returning (x, y, width, height) |
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| <a href="#SkRect_asScalars">asScalars</a> | returns pointer to members as array |
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| <a href="#SkRect_bottom">bottom</a> | returns larger bounds in y, if sorted |
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| <a href="#SkRect_centerX">centerX</a> | returns midpoint in x |
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| <a href="#SkRect_centerY">centerY</a> | returns midpoint in y |
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| <a href="#SkRect_contains">contains</a> | returns true if points are equal or inside |
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| <a href="#SkRect_dump_2">dump</a> | sends text representation to standard output using floats |
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| <a href="#SkRect_dumpHex">dumpHex</a> | sends text representation to standard output using hexadecimal |
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| <a href="#SkRect_height">height</a> | returns span in y |
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| <a href="#SkRect_inset">inset</a> | moves the sides symmetrically about the center |
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| <a href="#SkRect_intersect">intersect</a> | sets to shared area; returns true if not empty |
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| <a href="#SkRect_intersects">intersects</a> | returns true if areas overlap |
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| <a href="#SkRect_isEmpty">isEmpty</a> | returns true if width or height are zero or negative |
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| <a href="#SkRect_isFinite">isFinite</a> | returns true if no member is infinite or NaN |
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| <a href="#SkRect_isSorted">isSorted</a> | returns true if width or height are zero or positive |
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| <a href="#SkRect_iset">iset</a> | sets to int input (left, top, right, bottom) |
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| <a href="#SkRect_isetWH">isetWH</a> | sets to int input (0, 0, width, height) |
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| <a href="#SkRect_join">join</a> | sets to union of bounds |
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| <a href="#SkRect_joinNonEmptyArg">joinNonEmptyArg</a> | sets to union of bounds, asserting that argument is not empty |
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| <a href="#SkRect_joinPossiblyEmptyRect">joinPossiblyEmptyRect</a> | sets to union of bounds. Skips empty check for both |
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| <a href="#SkRect_left">left</a> | returns smaller bounds in x, if sorted |
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| <a href="#SkRect_makeInset">makeInset</a> | constructs from sides moved symmetrically about the center |
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| <a href="#SkRect_makeOffset">makeOffset</a> | constructs from translated sides |
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| <a href="#SkRect_makeOutset">makeOutset</a> | constructs from sides moved symmetrically about the center |
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| <a href="#SkRect_makeSorted">makeSorted</a> | constructs, ordering sides from smaller to larger |
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| <a href="#SkRect_offset">offset</a> | translates sides without changing width and height |
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| <a href="#SkRect_offsetTo">offsetTo</a> | translates to (x, y) without changing width and height |
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| <a href="#SkRect_outset">outset</a> | moves the sides symmetrically about the center |
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| <a href="#SkRect_right">right</a> | returns larger bounds in x, if sorted |
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| <a href="#SkRect_round_2">round</a> | sets members to nearest integer value |
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| <a href="#SkRect_roundIn">roundIn</a> | sets members to nearest integer value towards opposite |
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| <a href="#SkRect_roundOut">roundOut</a> | sets members to nearest integer value away from opposite |
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| <a href="#SkRect_set">set</a> | sets to <a href="undocumented#SkScalar">SkScalar</a> input (left, top, right, bottom) and others |
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| <a href="#SkRect_setBounds">setBounds</a> | sets to upper and lower limits of <a href="SkPoint_Reference#Point">Point</a> array |
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| <a href="#SkRect_setBoundsCheck">setBoundsCheck</a> | sets to upper and lower limits of <a href="SkPoint_Reference#Point">Point</a> array |
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| <a href="#SkRect_setEmpty">setEmpty</a> | sets to (0, 0, 0, 0) |
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| <a href="#SkRect_setLTRB">setLTRB</a> | sets to <a href="undocumented#SkScalar">SkScalar</a> input (left, top, right, bottom) |
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| <a href="#SkRect_setWH">setWH</a> | sets to <a href="undocumented#SkScalar">SkScalar</a> input (0, 0, width, height) |
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| <a href="#SkRect_setXYWH">setXYWH</a> | sets to <a href="undocumented#SkScalar">SkScalar</a> input (x, y, width, height) |
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| <a href="#SkRect_sort">sort</a> | orders sides from smaller to larger |
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| <a href="#SkRect_toQuad">toQuad</a> | returns four corners as <a href="SkPoint_Reference#Point">Point</a> |
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| <a href="#SkRect_top">top</a> | returns smaller bounds in y, if sorted |
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| <a href="#SkRect_width">width</a> | returns span in x |
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| <a href="#SkRect_x">x</a> | returns bounds left |
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| <a href="#SkRect_y">y</a> | returns bounds top |
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## <a name="Member"></a> Member
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| name | description |
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| --- | --- |
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| <a href="#SkRect_fBottom">fBottom</a> | larger y-axis bounds |
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| <a href="#SkRect_fLeft">fLeft</a> | smaller x-axis bounds |
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| <a href="#SkRect_fRight">fRight</a> | larger x-axis bounds |
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| <a href="#SkRect_fTop">fTop</a> | smaller y-axis bounds |
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<a name="SkRect_fLeft"> <code><strong>SkScalar fLeft</strong></code> </a>
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May contain any value, including infinities and NaN. The smaller of the
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horizontal values when sorted. When equal to or greater than <a href="#SkRect_fRight">fRight</a>, <a href="#Rect">Rect</a> is empty.
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<a name="SkRect_fTop"> <code><strong>SkScalar fTop</strong></code> </a>
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May contain any value, including infinities and NaN. The smaller of the
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vertical values when sorted. When equal to or greater than <a href="#SkRect_fBottom">fBottom</a>, <a href="#Rect">Rect</a> is empty.
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<a name="SkRect_fRight"> <code><strong>SkScalar fRight</strong></code> </a>
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May contain any value, including infinities and NaN. The larger of the
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horizontal values when sorted. When equal to or less than <a href="#SkRect_fLeft">fLeft</a>, <a href="#Rect">Rect</a> is empty.
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<a name="SkRect_fBottom"> <code><strong>SkScalar fBottom</strong></code> </a>
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May contain any value, including infinities and NaN. The larger of the
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vertical values when sorted. When equal to or less than <a href="#SkRect_fTop">fTop</a>, <a href="#Rect">Rect</a> is empty.
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## <a name="Constructor"></a> Constructor
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| name | description |
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| --- | --- |
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| <a href="#SkRect_Make">Make</a> | constructs from <a href="undocumented#ISize">ISize</a> returning (0, 0, width, height) |
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| <a href="#SkRect_MakeEmpty">MakeEmpty</a> | constructs from bounds of (0, 0, 0, 0) |
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| <a href="#SkRect_MakeIWH">MakeIWH</a> | constructs from int input returning (0, 0, width, height) |
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| <a href="#SkRect_MakeLTRB">MakeLTRB</a> | constructs from <a href="undocumented#SkScalar">SkScalar</a> left, top, right, bottom |
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| <a href="#SkRect_MakeSize">MakeSize</a> | constructs from <a href="undocumented#Size">Size</a> returning (0, 0, width, height) |
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| <a href="#SkRect_MakeWH">MakeWH</a> | constructs from <a href="undocumented#SkScalar">SkScalar</a> input returning (0, 0, width, height) |
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| <a href="#SkRect_MakeXYWH">MakeXYWH</a> | constructs from <a href="undocumented#SkScalar">SkScalar</a> input returning (x, y, width, height) |
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| <a href="#SkRect_makeInset">makeInset</a> | constructs from sides moved symmetrically about the center |
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| <a href="#SkRect_makeOffset">makeOffset</a> | constructs from translated sides |
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| <a href="#SkRect_makeOutset">makeOutset</a> | constructs from sides moved symmetrically about the center |
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| <a href="#SkRect_makeSorted">makeSorted</a> | constructs, ordering sides from smaller to larger |
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<a name="SkRect_MakeEmpty"></a>
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## MakeEmpty
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<pre style="padding: 1em 1em 1em 1em;width: 62.5em; background-color: #f0f0f0">
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static constexpr SkRect SK_WARN_UNUSED_RESULT MakeEmpty()
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</pre>
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Returns constructed <a href="#Rect">Rect</a> set to (0, 0, 0, 0).
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Many other rectangles are empty; if left is equal to or greater than right,
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or if top is equal to or greater than bottom. Setting all members to zero
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is a convenience, but does not designate a special empty rectangle.
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### Return Value
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bounds (0, 0, 0, 0)
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### Example
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<div><fiddle-embed name="2e262d0ac4b8ef51695e0525fc3ecdf6">
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#### Example Output
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~~~~
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MakeEmpty isEmpty: true
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offset rect isEmpty: true
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inset rect isEmpty: true
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outset rect isEmpty: false
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~~~~
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</fiddle-embed></div>
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### See Also
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<a href="#SkRect_isEmpty">isEmpty</a> <a href="#SkRect_setEmpty">setEmpty</a> <a href="SkIRect_Reference#SkIRect_MakeEmpty">SkIRect::MakeEmpty</a>
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---
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<a name="SkRect_MakeWH"></a>
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## MakeWH
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<pre style="padding: 1em 1em 1em 1em;width: 62.5em; background-color: #f0f0f0">
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static constexpr SkRect SK_WARN_UNUSED_RESULT MakeWH(SkScalar w, SkScalar h)
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</pre>
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Returns constructed <a href="#Rect">Rect</a> set to <a href="undocumented#SkScalar">SkScalar</a> values (0, 0, <a href="#SkRect_MakeWH_w">w</a>, <a href="#SkRect_MakeWH_h">h</a>). Does not
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validate input; <a href="#SkRect_MakeWH_w">w</a> or <a href="#SkRect_MakeWH_h">h</a> may be negative.
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Passing integer values may generate a compiler warning since <a href="#Rect">Rect</a> cannot
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represent 32-bit integers exactly. Use <a href="SkIRect_Reference#SkIRect">SkIRect</a> for an exact integer rectangle.
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### Parameters
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<table> <tr> <td><a name="SkRect_MakeWH_w"> <code><strong>w </strong></code> </a></td> <td>
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<a href="undocumented#SkScalar">SkScalar</a> width of constructed <a href="#Rect">Rect</a></td>
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</tr> <tr> <td><a name="SkRect_MakeWH_h"> <code><strong>h </strong></code> </a></td> <td>
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<a href="undocumented#SkScalar">SkScalar</a> height of constructed <a href="#Rect">Rect</a></td>
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</tr>
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</table>
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### Return Value
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bounds (0, 0, <a href="#SkRect_MakeWH_w">w</a>, <a href="#SkRect_MakeWH_h">h</a>)
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### Example
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<div><fiddle-embed name="8009d30f431e01f8aea4808e9017d9bf">
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#### Example Output
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~~~~
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all equal
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~~~~
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</fiddle-embed></div>
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### See Also
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<a href="#SkRect_MakeSize">MakeSize</a> <a href="#SkRect_MakeXYWH">MakeXYWH</a> <a href="#SkRect_MakeIWH">MakeIWH</a> <a href="#SkRect_setWH">setWH</a> <a href="SkIRect_Reference#SkIRect_MakeWH">SkIRect::MakeWH</a>
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---
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<a name="SkRect_MakeIWH"></a>
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## MakeIWH
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<pre style="padding: 1em 1em 1em 1em;width: 62.5em; background-color: #f0f0f0">
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static SkRect SK_WARN_UNUSED_RESULT MakeIWH(int w, int h)
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</pre>
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Returns constructed <a href="#Rect">Rect</a> set to integer values (0, 0, <a href="#SkRect_MakeIWH_w">w</a>, <a href="#SkRect_MakeIWH_h">h</a>). Does not validate
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input; <a href="#SkRect_MakeIWH_w">w</a> or <a href="#SkRect_MakeIWH_h">h</a> may be negative.
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Use to avoid a compiler warning that input may lose precision when stored.
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Use <a href="SkIRect_Reference#SkIRect">SkIRect</a> for an exact integer rectangle.
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### Parameters
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<table> <tr> <td><a name="SkRect_MakeIWH_w"> <code><strong>w </strong></code> </a></td> <td>
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integer width of constructed <a href="#Rect">Rect</a></td>
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</tr> <tr> <td><a name="SkRect_MakeIWH_h"> <code><strong>h </strong></code> </a></td> <td>
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integer height of constructed <a href="#Rect">Rect</a></td>
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</tr>
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</table>
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### Return Value
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bounds (0, 0, <a href="#SkRect_MakeIWH_w">w</a>, <a href="#SkRect_MakeIWH_h">h</a>)
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### Example
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<div><fiddle-embed name="faa660ac19eaddc3f3eab57a0bddfdcb">
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#### Example Output
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~~~~
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i_rect width: 25 f_rect width:25
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i_rect width: 125000111 f_rect width:125000112
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~~~~
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</fiddle-embed></div>
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### See Also
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<a href="#SkRect_MakeXYWH">MakeXYWH</a> <a href="#SkRect_MakeWH">MakeWH</a> <a href="#SkRect_isetWH">isetWH</a> <a href="SkIRect_Reference#SkIRect_MakeWH">SkIRect::MakeWH</a>
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---
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<a name="SkRect_MakeSize"></a>
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## MakeSize
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<pre style="padding: 1em 1em 1em 1em;width: 62.5em; background-color: #f0f0f0">
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static constexpr SkRect SK_WARN_UNUSED_RESULT MakeSize(const SkSize& size)
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</pre>
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Returns constructed <a href="#Rect">Rect</a> set to (0, 0, <a href="#SkRect_MakeSize_size">size</a>.<a href="#SkRect_width">width</a>, <a href="#SkRect_MakeSize_size">size</a>.<a href="#SkRect_height">height</a>). Does not
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validate input; <a href="#SkRect_MakeSize_size">size</a>.<a href="#SkRect_width">width</a> or <a href="#SkRect_MakeSize_size">size</a>.<a href="#SkRect_height">height</a> may be negative.
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### Parameters
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<table> <tr> <td><a name="SkRect_MakeSize_size"> <code><strong>size </strong></code> </a></td> <td>
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<a href="undocumented#SkScalar">SkScalar</a> values for <a href="#Rect">Rect</a> width and height</td>
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</tr>
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</table>
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### Return Value
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bounds (0, 0, <a href="#SkRect_MakeSize_size">size</a>.<a href="#SkRect_width">width</a>, <a href="#SkRect_MakeSize_size">size</a>.<a href="#SkRect_height">height</a>)
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### Example
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<div><fiddle-embed name="ab2c1a55016c8de9172b77fdf69e00a2">
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#### Example Output
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~~~~
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rect width: 25.5 height: 35.5
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floor width: 25 height: 35
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~~~~
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</fiddle-embed></div>
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### See Also
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<a href="#SkRect_MakeWH">MakeWH</a> <a href="#SkRect_MakeXYWH">MakeXYWH</a> <a href="#SkRect_MakeIWH">MakeIWH</a> <a href="#SkRect_setWH">setWH</a> <a href="SkIRect_Reference#SkIRect_MakeWH">SkIRect::MakeWH</a>
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---
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<a name="SkRect_MakeLTRB"></a>
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## MakeLTRB
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<pre style="padding: 1em 1em 1em 1em;width: 62.5em; background-color: #f0f0f0">
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static constexpr SkRect SK_WARN_UNUSED_RESULT MakeLTRB(SkScalar l, SkScalar t, SkScalar r, SkScalar b)
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</pre>
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Returns constructed <a href="#Rect">Rect</a> set to (<a href="#SkRect_MakeLTRB_l">l</a>, <a href="#SkRect_MakeLTRB_t">t</a>, <a href="#SkRect_MakeLTRB_r">r</a>, <a href="#SkRect_MakeLTRB_b">b</a>). Does not sort input; <a href="#Rect">Rect</a> may
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result in <a href="#SkRect_fLeft">fLeft</a> greater than <a href="#SkRect_fRight">fRight</a>, or <a href="#SkRect_fTop">fTop</a> greater than <a href="#SkRect_fBottom">fBottom</a>.
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### Parameters
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<table> <tr> <td><a name="SkRect_MakeLTRB_l"> <code><strong>l </strong></code> </a></td> <td>
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<a href="undocumented#SkScalar">SkScalar</a> stored in <a href="#SkRect_fLeft">fLeft</a></td>
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</tr> <tr> <td><a name="SkRect_MakeLTRB_t"> <code><strong>t </strong></code> </a></td> <td>
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<a href="undocumented#SkScalar">SkScalar</a> stored in <a href="#SkRect_fTop">fTop</a></td>
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</tr> <tr> <td><a name="SkRect_MakeLTRB_r"> <code><strong>r </strong></code> </a></td> <td>
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<a href="undocumented#SkScalar">SkScalar</a> stored in <a href="#SkRect_fRight">fRight</a></td>
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</tr> <tr> <td><a name="SkRect_MakeLTRB_b"> <code><strong>b </strong></code> </a></td> <td>
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<a href="undocumented#SkScalar">SkScalar</a> stored in <a href="#SkRect_fBottom">fBottom</a></td>
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</tr>
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</table>
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### Return Value
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|
|
bounds (<a href="#SkRect_MakeLTRB_l">l</a>, <a href="#SkRect_MakeLTRB_t">t</a>, <a href="#SkRect_MakeLTRB_r">r</a>, <a href="#SkRect_MakeLTRB_b">b</a>)
|
|
|
|
### Example
|
|
|
|
<div><fiddle-embed name="158b8dd9d02d65a5ae5ab7d1595a5b4c">
|
|
|
|
#### Example Output
|
|
|
|
~~~~
|
|
rect: 5, 35, 15, 25 isEmpty: true
|
|
rect: 5, 25, 15, 35 isEmpty: false
|
|
~~~~
|
|
|
|
</fiddle-embed></div>
|
|
|
|
### See Also
|
|
|
|
<a href="#SkRect_MakeXYWH">MakeXYWH</a> <a href="SkIRect_Reference#SkIRect_MakeLTRB">SkIRect::MakeLTRB</a>
|
|
|
|
---
|
|
|
|
<a name="SkRect_MakeXYWH"></a>
|
|
## MakeXYWH
|
|
|
|
<pre style="padding: 1em 1em 1em 1em;width: 62.5em; background-color: #f0f0f0">
|
|
static constexpr SkRect SK_WARN_UNUSED_RESULT MakeXYWH(SkScalar x, SkScalar y, SkScalar w, SkScalar h)
|
|
</pre>
|
|
|
|
Returns constructed <a href="#Rect">Rect</a> set to(x, y, x + <a href="#SkRect_MakeXYWH_w">w</a>, y + <a href="#SkRect_MakeXYWH_h">h</a>).
|
|
Does not validate input;
|
|
<a href="#SkRect_MakeXYWH_w">w</a> or <a href="#SkRect_MakeXYWH_h">h</a> may be negative.
|
|
|
|
### Parameters
|
|
|
|
<table> <tr> <td><a name="SkRect_MakeXYWH_x"> <code><strong>x </strong></code> </a></td> <td>
|
|
stored in <a href="#SkRect_fLeft">fLeft</a></td>
|
|
</tr> <tr> <td><a name="SkRect_MakeXYWH_y"> <code><strong>y </strong></code> </a></td> <td>
|
|
stored in <a href="#SkRect_fTop">fTop</a></td>
|
|
</tr> <tr> <td><a name="SkRect_MakeXYWH_w"> <code><strong>w </strong></code> </a></td> <td>
|
|
added to x and stored in <a href="#SkRect_fRight">fRight</a></td>
|
|
</tr> <tr> <td><a name="SkRect_MakeXYWH_h"> <code><strong>h </strong></code> </a></td> <td>
|
|
added to y and stored in <a href="#SkRect_fBottom">fBottom</a></td>
|
|
</tr>
|
|
</table>
|
|
|
|
### Return Value
|
|
|
|
bounds at (x, y) with width <a href="#SkRect_MakeXYWH_w">w</a> and height <a href="#SkRect_MakeXYWH_h">h</a>
|
|
|
|
### Example
|
|
|
|
<div><fiddle-embed name="38e464dba13be11ac21e210fbf3b5afc">
|
|
|
|
#### Example Output
|
|
|
|
~~~~
|
|
rect: 5, 35, -10, 60 isEmpty: true
|
|
rect: -10, 35, 5, 60 isEmpty: false
|
|
~~~~
|
|
|
|
</fiddle-embed></div>
|
|
|
|
### See Also
|
|
|
|
<a href="#SkRect_MakeLTRB">MakeLTRB</a> <a href="SkIRect_Reference#SkIRect_MakeXYWH">SkIRect::MakeXYWH</a>
|
|
|
|
---
|
|
|
|
<a name="SkRect_MakeFromIRect"></a>
|
|
## MakeFromIRect
|
|
|
|
<pre style="padding: 1em 1em 1em 1em;width: 62.5em; background-color: #f0f0f0">
|
|
static SkRect SK_WARN_UNUSED_RESULT MakeFromIRect(const SkIRect& irect)
|
|
</pre>
|
|
|
|
---
|
|
|
|
<a name="SkRect_Make"></a>
|
|
## Make
|
|
|
|
<pre style="padding: 1em 1em 1em 1em;width: 62.5em; background-color: #f0f0f0">
|
|
static SkRect Make(const SkISize& size)
|
|
</pre>
|
|
|
|
Returns constructed <a href="SkIRect_Reference#IRect">IRect</a> set to (0, 0, <a href="#SkRect_Make_size">size</a>.<a href="#SkRect_width">width</a>, <a href="#SkRect_Make_size">size</a>.<a href="#SkRect_height">height</a>).
|
|
Does not validate input; <a href="#SkRect_Make_size">size</a>.<a href="#SkRect_width">width</a> or <a href="#SkRect_Make_size">size</a>.<a href="#SkRect_height">height</a> may be negative.
|
|
|
|
### Parameters
|
|
|
|
<table> <tr> <td><a name="SkRect_Make_size"> <code><strong>size </strong></code> </a></td> <td>
|
|
integer values for <a href="#Rect">Rect</a> width and height</td>
|
|
</tr>
|
|
</table>
|
|
|
|
### Return Value
|
|
|
|
bounds (0, 0, <a href="#SkRect_Make_size">size</a>.<a href="#SkRect_width">width</a>, <a href="#SkRect_Make_size">size</a>.<a href="#SkRect_height">height</a>)
|
|
|
|
### Example
|
|
|
|
<div><fiddle-embed name="e866f5e4f6ac52e89acadf48e54ac8e0">
|
|
|
|
#### Example Output
|
|
|
|
~~~~
|
|
rect1 == rect2
|
|
~~~~
|
|
|
|
</fiddle-embed></div>
|
|
|
|
### See Also
|
|
|
|
<a href="#SkRect_MakeWH">MakeWH</a> <a href="#SkRect_MakeXYWH">MakeXYWH</a> <a href="#SkRect_MakeIWH">SkRect::MakeIWH</a> <a href="SkIRect_Reference#SkIRect_MakeSize">SkIRect::MakeSize</a>
|
|
|
|
---
|
|
|
|
<a name="SkRect_Make_2"></a>
|
|
|
|
<pre style="padding: 1em 1em 1em 1em;width: 62.5em; background-color: #f0f0f0">
|
|
static SkRect SK_WARN_UNUSED_RESULT Make(const SkIRect& irect)
|
|
</pre>
|
|
|
|
Returns constructed <a href="SkIRect_Reference#IRect">IRect</a> set to <a href="#SkRect_Make_2_irect">irect</a>, promoting integers to <a href="undocumented#Scalar">Scalar</a>.
|
|
Does not validate input; <a href="#SkRect_fLeft">fLeft</a> may be greater than <a href="#SkRect_fRight">fRight</a>, <a href="#SkRect_fTop">fTop</a> may be greater
|
|
than <a href="#SkRect_fBottom">fBottom</a>.
|
|
|
|
### Parameters
|
|
|
|
<table> <tr> <td><a name="SkRect_Make_2_irect"> <code><strong>irect </strong></code> </a></td> <td>
|
|
integer unsorted bounds</td>
|
|
</tr>
|
|
</table>
|
|
|
|
### Return Value
|
|
|
|
<a href="#SkRect_Make_2_irect">irect</a> members converted to <a href="undocumented#SkScalar">SkScalar</a>
|
|
|
|
### Example
|
|
|
|
<div><fiddle-embed name="dd801faa1e60a0fe9e0657674461e063"></fiddle-embed></div>
|
|
|
|
### See Also
|
|
|
|
<a href="#SkRect_MakeLTRB">MakeLTRB</a>
|
|
|
|
---
|
|
|
|
## <a name="Property"></a> Property
|
|
|
|
| name | description |
|
|
| --- | --- |
|
|
| <a href="#SkRect_asScalars">asScalars</a> | returns pointer to members as array |
|
|
| <a href="#SkRect_bottom">bottom</a> | returns larger bounds in y, if sorted |
|
|
| <a href="#SkRect_centerX">centerX</a> | returns midpoint in x |
|
|
| <a href="#SkRect_centerY">centerY</a> | returns midpoint in y |
|
|
| <a href="#SkRect_dump_2">dump</a> | sends text representation to standard output using floats |
|
|
| | <a href="#SkRect_dump">dump(bool asHex)</a> const |
|
|
| | <a href="#SkRect_dump_2">dump</a> const |
|
|
| <a href="#SkRect_dumpHex">dumpHex</a> | sends text representation to standard output using hexadecimal |
|
|
| <a href="#SkRect_height">height</a> | returns span in y |
|
|
| <a href="#SkRect_isEmpty">isEmpty</a> | returns true if width or height are zero or negative |
|
|
| <a href="#SkRect_isFinite">isFinite</a> | returns true if no member is infinite or NaN |
|
|
| <a href="#SkRect_isSorted">isSorted</a> | returns true if width or height are zero or positive |
|
|
| <a href="#SkRect_left">left</a> | returns smaller bounds in x, if sorted |
|
|
| <a href="#SkRect_right">right</a> | returns larger bounds in x, if sorted |
|
|
| <a href="#SkRect_top">top</a> | returns smaller bounds in y, if sorted |
|
|
| <a href="#SkRect_width">width</a> | returns span in x |
|
|
| <a href="#SkRect_x">x</a> | returns bounds left |
|
|
| <a href="#SkRect_y">y</a> | returns bounds top |
|
|
|
|
<a name="SkRect_isEmpty"></a>
|
|
## isEmpty
|
|
|
|
<pre style="padding: 1em 1em 1em 1em;width: 62.5em; background-color: #f0f0f0">
|
|
bool isEmpty() const
|
|
</pre>
|
|
|
|
Returns true if <a href="#SkRect_fLeft">fLeft</a> is equal to or greater than <a href="#SkRect_fRight">fRight</a>, or if <a href="#SkRect_fTop">fTop</a> is equal
|
|
to or greater than <a href="#SkRect_fBottom">fBottom</a>. Call <a href="#SkRect_sort">sort</a> to reverse rectangles with negative
|
|
<a href="#SkRect_width">width</a> or <a href="#SkRect_height">height</a>.
|
|
|
|
### Return Value
|
|
|
|
true if <a href="#SkRect_width">width</a> or <a href="#SkRect_height">height</a> are zero or negative
|
|
|
|
### Example
|
|
|
|
<div><fiddle-embed name="1d7b924d6ca2a6aef09684a8a632439c">
|
|
|
|
#### Example Output
|
|
|
|
~~~~
|
|
rect: {20, 40, 10, 50} is empty
|
|
sorted: {10, 40, 20, 50} is not empty
|
|
rect: {20, 40, 20, 50} is empty
|
|
sorted: {20, 40, 20, 50} is empty
|
|
~~~~
|
|
|
|
</fiddle-embed></div>
|
|
|
|
### See Also
|
|
|
|
<a href="#SkRect_MakeEmpty">MakeEmpty</a> <a href="#SkRect_sort">sort</a> <a href="SkIRect_Reference#SkIRect_isEmpty">SkIRect::isEmpty</a>
|
|
|
|
---
|
|
|
|
<a name="SkRect_isSorted"></a>
|
|
## isSorted
|
|
|
|
<pre style="padding: 1em 1em 1em 1em;width: 62.5em; background-color: #f0f0f0">
|
|
bool isSorted() const
|
|
</pre>
|
|
|
|
Returns true if <a href="#SkRect_fLeft">fLeft</a> is equal to or less than <a href="#SkRect_fRight">fRight</a>, or if <a href="#SkRect_fTop">fTop</a> is equal
|
|
to or less than <a href="#SkRect_fBottom">fBottom</a>. Call <a href="#SkRect_sort">sort</a> to reverse rectangles with negative
|
|
<a href="#SkRect_width">width</a> or <a href="#SkRect_height">height</a>.
|
|
|
|
### Return Value
|
|
|
|
true if <a href="#SkRect_width">width</a> or <a href="#SkRect_height">height</a> are zero or positive
|
|
|
|
### Example
|
|
|
|
<div><fiddle-embed name="c7065a83b220a96f903dbbb65906fe7b">
|
|
|
|
#### Example Output
|
|
|
|
~~~~
|
|
rect: {20, 40, 10, 50} is not sorted
|
|
sorted: {10, 40, 20, 50} is sorted
|
|
rect: {20, 40, 20, 50} is sorted
|
|
sorted: {20, 40, 20, 50} is sorted
|
|
~~~~
|
|
|
|
</fiddle-embed></div>
|
|
|
|
### See Also
|
|
|
|
<a href="#SkRect_sort">sort</a> <a href="#SkRect_makeSorted">makeSorted</a> <a href="#SkRect_isEmpty">isEmpty</a>
|
|
|
|
---
|
|
|
|
<a name="SkRect_isFinite"></a>
|
|
## isFinite
|
|
|
|
<pre style="padding: 1em 1em 1em 1em;width: 62.5em; background-color: #f0f0f0">
|
|
bool isFinite() const
|
|
</pre>
|
|
|
|
Returns true if all values in the rectangle are finite: <a href="undocumented#SK_ScalarMin">SK ScalarMin</a> or larger,
|
|
and <a href="undocumented#SK_ScalarMax">SK ScalarMax</a> or smaller.
|
|
|
|
### Return Value
|
|
|
|
true if no member is infinite or NaN
|
|
|
|
### Example
|
|
|
|
<div><fiddle-embed name="443fe5f8296d4cdb19cc9862a9cf77a4">
|
|
|
|
#### Example Output
|
|
|
|
~~~~
|
|
largest is finite: true
|
|
large width inf
|
|
widest is finite: false
|
|
~~~~
|
|
|
|
</fiddle-embed></div>
|
|
|
|
### See Also
|
|
|
|
<a href="undocumented#SkScalarIsFinite">SkScalarIsFinite</a> <a href="undocumented#SkScalarIsNaN">SkScalarIsNaN</a>
|
|
|
|
---
|
|
|
|
<a name="SkRect_x"></a>
|
|
## x
|
|
|
|
<pre style="padding: 1em 1em 1em 1em;width: 62.5em; background-color: #f0f0f0">
|
|
SkScalar x() const
|
|
</pre>
|
|
|
|
Returns left edge of <a href="#Rect">Rect</a>, if sorted. Call <a href="#SkRect_isSorted">isSorted</a> to see if <a href="#Rect">Rect</a> is valid.
|
|
Call <a href="#SkRect_sort">sort</a> to reverse <a href="#SkRect_fLeft">fLeft</a> and <a href="#SkRect_fRight">fRight</a> if needed.
|
|
|
|
### Return Value
|
|
|
|
<a href="#SkRect_fLeft">fLeft</a>
|
|
|
|
### Example
|
|
|
|
<div><fiddle-embed name="23c77a35ac54a439a2989f840aa5cb99">
|
|
|
|
#### Example Output
|
|
|
|
~~~~
|
|
unsorted.fLeft: 15 unsorted.x(): 15
|
|
sorted.fLeft: 10 sorted.x(): 10
|
|
~~~~
|
|
|
|
</fiddle-embed></div>
|
|
|
|
### See Also
|
|
|
|
<a href="#SkRect_fLeft">fLeft</a> <a href="#SkRect_left">left</a> <a href="#SkRect_y">y</a> <a href="SkIRect_Reference#SkIRect_x">SkIRect::x()</a>
|
|
|
|
---
|
|
|
|
<a name="SkRect_y"></a>
|
|
## y
|
|
|
|
<pre style="padding: 1em 1em 1em 1em;width: 62.5em; background-color: #f0f0f0">
|
|
SkScalar y() const
|
|
</pre>
|
|
|
|
Returns top edge of <a href="#Rect">Rect</a>, if sorted. Call <a href="#SkRect_isEmpty">isEmpty</a> to see if <a href="#Rect">Rect</a> may be invalid,
|
|
and <a href="#SkRect_sort">sort</a> to reverse <a href="#SkRect_fTop">fTop</a> and <a href="#SkRect_fBottom">fBottom</a> if needed.
|
|
|
|
### Return Value
|
|
|
|
<a href="#SkRect_fTop">fTop</a>
|
|
|
|
### Example
|
|
|
|
<div><fiddle-embed name="c653d9017983d2a047b1fee6a481d82b">
|
|
|
|
#### Example Output
|
|
|
|
~~~~
|
|
unsorted.fTop: 25 unsorted.y(): 25
|
|
sorted.fTop: 5 sorted.y(): 5
|
|
~~~~
|
|
|
|
</fiddle-embed></div>
|
|
|
|
### See Also
|
|
|
|
<a href="#SkRect_fTop">fTop</a> <a href="#SkRect_top">top</a> <a href="#SkRect_x">x</a> <a href="SkIRect_Reference#SkIRect_y">SkIRect::y()</a>
|
|
|
|
---
|
|
|
|
<a name="SkRect_left"></a>
|
|
## left
|
|
|
|
<pre style="padding: 1em 1em 1em 1em;width: 62.5em; background-color: #f0f0f0">
|
|
SkScalar left() const
|
|
</pre>
|
|
|
|
Returns left edge of <a href="#Rect">Rect</a>, if sorted. Call <a href="#SkRect_isSorted">isSorted</a> to see if <a href="#Rect">Rect</a> is valid.
|
|
Call <a href="#SkRect_sort">sort</a> to reverse <a href="#SkRect_fLeft">fLeft</a> and <a href="#SkRect_fRight">fRight</a> if needed.
|
|
|
|
### Return Value
|
|
|
|
<a href="#SkRect_fLeft">fLeft</a>
|
|
|
|
### Example
|
|
|
|
<div><fiddle-embed name="900dc96c3549795a87036d6458c4fde6">
|
|
|
|
#### Example Output
|
|
|
|
~~~~
|
|
unsorted.fLeft: 15 unsorted.left(): 15
|
|
sorted.fLeft: 10 sorted.left(): 10
|
|
~~~~
|
|
|
|
</fiddle-embed></div>
|
|
|
|
### See Also
|
|
|
|
<a href="#SkRect_fLeft">fLeft</a> <a href="#SkRect_x">x</a> <a href="SkIRect_Reference#SkIRect_left">SkIRect::left()</a>
|
|
|
|
---
|
|
|
|
<a name="SkRect_top"></a>
|
|
## top
|
|
|
|
<pre style="padding: 1em 1em 1em 1em;width: 62.5em; background-color: #f0f0f0">
|
|
SkScalar top() const
|
|
</pre>
|
|
|
|
Returns top edge of <a href="#Rect">Rect</a>, if sorted. Call <a href="#SkRect_isEmpty">isEmpty</a> to see if <a href="#Rect">Rect</a> may be invalid,
|
|
and <a href="#SkRect_sort">sort</a> to reverse <a href="#SkRect_fTop">fTop</a> and <a href="#SkRect_fBottom">fBottom</a> if needed.
|
|
|
|
### Return Value
|
|
|
|
<a href="#SkRect_fTop">fTop</a>
|
|
|
|
### Example
|
|
|
|
<div><fiddle-embed name="3cfc24b011aef1ca8ccb57c05711620c">
|
|
|
|
#### Example Output
|
|
|
|
~~~~
|
|
unsorted.fTop: 25 unsorted.top(): 25
|
|
sorted.fTop: 5 sorted.top(): 5
|
|
~~~~
|
|
|
|
</fiddle-embed></div>
|
|
|
|
### See Also
|
|
|
|
<a href="#SkRect_fTop">fTop</a> <a href="#SkRect_y">y</a> <a href="SkIRect_Reference#SkIRect_top">SkIRect::top()</a>
|
|
|
|
---
|
|
|
|
<a name="SkRect_right"></a>
|
|
## right
|
|
|
|
<pre style="padding: 1em 1em 1em 1em;width: 62.5em; background-color: #f0f0f0">
|
|
SkScalar right() const
|
|
</pre>
|
|
|
|
Returns right edge of <a href="#Rect">Rect</a>, if sorted. Call <a href="#SkRect_isSorted">isSorted</a> to see if <a href="#Rect">Rect</a> is valid.
|
|
Call <a href="#SkRect_sort">sort</a> to reverse <a href="#SkRect_fLeft">fLeft</a> and <a href="#SkRect_fRight">fRight</a> if needed.
|
|
|
|
### Return Value
|
|
|
|
<a href="#SkRect_fRight">fRight</a>
|
|
|
|
### Example
|
|
|
|
<div><fiddle-embed name="ca3de7e5e292b3ad3633b1c39a31d3ab">
|
|
|
|
#### Example Output
|
|
|
|
~~~~
|
|
unsorted.fRight: 10 unsorted.right(): 10
|
|
sorted.fRight: 15 sorted.right(): 15
|
|
~~~~
|
|
|
|
</fiddle-embed></div>
|
|
|
|
### See Also
|
|
|
|
<a href="#SkRect_fRight">fRight</a> <a href="SkIRect_Reference#SkIRect_right">SkIRect::right()</a>
|
|
|
|
---
|
|
|
|
<a name="SkRect_bottom"></a>
|
|
## bottom
|
|
|
|
<pre style="padding: 1em 1em 1em 1em;width: 62.5em; background-color: #f0f0f0">
|
|
SkScalar bottom() const
|
|
</pre>
|
|
|
|
Returns bottom edge of <a href="#Rect">Rect</a>, if sorted. Call <a href="#SkRect_isEmpty">isEmpty</a> to see if <a href="#Rect">Rect</a> may be invalid,
|
|
and <a href="#SkRect_sort">sort</a> to reverse <a href="#SkRect_fTop">fTop</a> and <a href="#SkRect_fBottom">fBottom</a> if needed.
|
|
|
|
### Return Value
|
|
|
|
<a href="#SkRect_fBottom">fBottom</a>
|
|
|
|
### Example
|
|
|
|
<div><fiddle-embed name="a98993a66616ae406d8bdc54adfb1411">
|
|
|
|
#### Example Output
|
|
|
|
~~~~
|
|
unsorted.fBottom: 5 unsorted.bottom(): 5
|
|
sorted.fBottom: 25 sorted.bottom(): 25
|
|
~~~~
|
|
|
|
</fiddle-embed></div>
|
|
|
|
### See Also
|
|
|
|
<a href="#SkRect_fBottom">fBottom</a> <a href="SkIRect_Reference#SkIRect_bottom">SkIRect::bottom()</a>
|
|
|
|
---
|
|
|
|
<a name="SkRect_width"></a>
|
|
## width
|
|
|
|
<pre style="padding: 1em 1em 1em 1em;width: 62.5em; background-color: #f0f0f0">
|
|
SkScalar width() const
|
|
</pre>
|
|
|
|
Returns span on the x-axis. This does not check if <a href="#Rect">Rect</a> is sorted, or if
|
|
result fits in 32-bit float; result may be negative or infinity.
|
|
|
|
### Return Value
|
|
|
|
<a href="#SkRect_fRight">fRight</a> minus <a href="#SkRect_fLeft">fLeft</a>
|
|
|
|
### Example
|
|
|
|
<div><fiddle-embed name="11f8f0efe6291019fee0ac17844f6c1a"><div>Compare with <a href="SkIRect_Reference#SkIRect_width">SkIRect::width()</a> example.</div>
|
|
|
|
#### Example Output
|
|
|
|
~~~~
|
|
unsorted width: -5
|
|
large width: 4294967296
|
|
~~~~
|
|
|
|
</fiddle-embed></div>
|
|
|
|
### See Also
|
|
|
|
<a href="#SkRect_height">height</a> <a href="SkIRect_Reference#SkIRect_width">SkIRect::width()</a>
|
|
|
|
---
|
|
|
|
<a name="SkRect_height"></a>
|
|
## height
|
|
|
|
<pre style="padding: 1em 1em 1em 1em;width: 62.5em; background-color: #f0f0f0">
|
|
SkScalar height() const
|
|
</pre>
|
|
|
|
Returns span on the y-axis. This does not check if <a href="SkIRect_Reference#IRect">IRect</a> is sorted, or if
|
|
result fits in 32-bit float; result may be negative or infinity.
|
|
|
|
### Return Value
|
|
|
|
<a href="#SkRect_fBottom">fBottom</a> minus <a href="#SkRect_fTop">fTop</a>
|
|
|
|
### Example
|
|
|
|
<div><fiddle-embed name="39429e45f05240218ecd511443ab3e44"><div>Compare with <a href="SkIRect_Reference#SkIRect_height">SkIRect::height()</a> example.</div>
|
|
|
|
#### Example Output
|
|
|
|
~~~~
|
|
unsorted height: -5
|
|
large height: 4294967296
|
|
~~~~
|
|
|
|
</fiddle-embed></div>
|
|
|
|
### See Also
|
|
|
|
<a href="#SkRect_width">width</a> <a href="SkIRect_Reference#SkIRect_height">SkIRect::height()</a>
|
|
|
|
---
|
|
|
|
<a name="SkRect_centerX"></a>
|
|
## centerX
|
|
|
|
<pre style="padding: 1em 1em 1em 1em;width: 62.5em; background-color: #f0f0f0">
|
|
SkScalar centerX() const
|
|
</pre>
|
|
|
|
Returns average of left edge and right edge. Result does not change if <a href="#Rect">Rect</a>
|
|
is sorted. Result may overflow to infinity if <a href="#Rect">Rect</a> is far from the origin.
|
|
|
|
### Return Value
|
|
|
|
midpoint in x
|
|
|
|
### Example
|
|
|
|
<div><fiddle-embed name="d8439ba8d23a424fa032fb97147fd2d2">
|
|
|
|
#### Example Output
|
|
|
|
~~~~
|
|
left: 20 right: 41 centerX: 30.5
|
|
left: 20 right: 41 centerX: 30.5
|
|
left: -20 right: -41 centerX: -30.5
|
|
left: -41 right: -20 centerX: -30.5
|
|
~~~~
|
|
|
|
</fiddle-embed></div>
|
|
|
|
### See Also
|
|
|
|
<a href="#SkRect_centerY">centerY</a> <a href="SkIRect_Reference#SkIRect_centerX">SkIRect::centerX</a>
|
|
|
|
---
|
|
|
|
<a name="SkRect_centerY"></a>
|
|
## centerY
|
|
|
|
<pre style="padding: 1em 1em 1em 1em;width: 62.5em; background-color: #f0f0f0">
|
|
SkScalar centerY() const
|
|
</pre>
|
|
|
|
Returns average of top edge and bottom edge. Result does not change if <a href="#Rect">Rect</a>
|
|
is sorted. Result may overflow to infinity if <a href="#Rect">Rect</a> is far from the origin.
|
|
|
|
### Return Value
|
|
|
|
midpoint in y
|
|
|
|
### Example
|
|
|
|
<div><fiddle-embed name="ebeeafafeb8fe39d5ffc9115b02c2340">
|
|
|
|
#### Example Output
|
|
|
|
~~~~
|
|
left: 2e+38 right: 3e+38 centerX: inf safe mid x: 2.5e+38
|
|
~~~~
|
|
|
|
</fiddle-embed></div>
|
|
|
|
### See Also
|
|
|
|
<a href="#SkRect_centerX">centerX</a> <a href="SkIRect_Reference#SkIRect_centerY">SkIRect::centerY</a>
|
|
|
|
---
|
|
|
|
## <a name="Operator"></a> Operator
|
|
|
|
| name | description |
|
|
| --- | --- |
|
|
| <a href="#SkRect_notequal_operator">operator!=(const SkRect& a, const SkRect& b)</a> | returns true if members are unequal |
|
|
| <a href="#SkRect_equal_operator">operator==(const SkRect& a, const SkRect& b)</a> | returns true if members are equal |
|
|
|
|
<a name="SkRect_equal_operator"></a>
|
|
## operator==
|
|
|
|
<pre style="padding: 1em 1em 1em 1em;width: 62.5em; background-color: #f0f0f0">
|
|
bool operator==(const SkRect& a, const SkRect& b)
|
|
</pre>
|
|
|
|
Returns true if all members in <a href="#SkRect_equal_operator_a">a</a>: <a href="#SkRect_fLeft">fLeft</a>, <a href="#SkRect_fTop">fTop</a>, <a href="#SkRect_fRight">fRight</a>, and <a href="#SkRect_fBottom">fBottom</a>; are
|
|
equal to the corresponding members in <a href="#SkRect_equal_operator_b">b</a>.
|
|
|
|
<a href="#SkRect_equal_operator_a">a</a> and <a href="#SkRect_equal_operator_b">b</a> are not equal if either contain NaN. <a href="#SkRect_equal_operator_a">a</a> and <a href="#SkRect_equal_operator_b">b</a> are equal if members
|
|
contain zeroes width different signs.
|
|
|
|
### Parameters
|
|
|
|
<table> <tr> <td><a name="SkRect_equal_operator_a"> <code><strong>a </strong></code> </a></td> <td>
|
|
<a href="#Rect">Rect</a> to compare</td>
|
|
</tr> <tr> <td><a name="SkRect_equal_operator_b"> <code><strong>b </strong></code> </a></td> <td>
|
|
<a href="#Rect">Rect</a> to compare</td>
|
|
</tr>
|
|
</table>
|
|
|
|
### Return Value
|
|
|
|
true if members are equal
|
|
|
|
### Example
|
|
|
|
<div><fiddle-embed name="c6c5b40cad7c3a839fdf576b380391a6">
|
|
|
|
#### Example Output
|
|
|
|
~~~~
|
|
tests are equal
|
|
{0, 0, 2, 2} == {-0, -0, 2, 2} and are numerically equal
|
|
{0, 0, 2, 2} == {-0, -0, 2, 2} and are numerically equal
|
|
{0, 0, 2, 2} == {-0, -0, 2, 2} and are numerically equal
|
|
~~~~
|
|
|
|
</fiddle-embed></div>
|
|
|
|
### See Also
|
|
|
|
<a href="#SkRect_notequal_operator">operator!=(const SkRect& a, const SkRect& b)</a>
|
|
|
|
---
|
|
|
|
<a name="SkRect_notequal_operator"></a>
|
|
## operator!=
|
|
|
|
<pre style="padding: 1em 1em 1em 1em;width: 62.5em; background-color: #f0f0f0">
|
|
bool operator!=(const SkRect& a, const SkRect& b)
|
|
</pre>
|
|
|
|
Returns true if any in <a href="#SkRect_notequal_operator_a">a</a>: <a href="#SkRect_fLeft">fLeft</a>, <a href="#SkRect_fTop">fTop</a>, <a href="#SkRect_fRight">fRight</a>, and <a href="#SkRect_fBottom">fBottom</a>; does not
|
|
equal the corresponding members in <a href="#SkRect_notequal_operator_b">b</a>.
|
|
|
|
<a href="#SkRect_notequal_operator_a">a</a> and <a href="#SkRect_notequal_operator_b">b</a> are not equal if either contain NaN. <a href="#SkRect_notequal_operator_a">a</a> and <a href="#SkRect_notequal_operator_b">b</a> are equal if members
|
|
contain zeroes width different signs.
|
|
|
|
### Parameters
|
|
|
|
<table> <tr> <td><a name="SkRect_notequal_operator_a"> <code><strong>a </strong></code> </a></td> <td>
|
|
<a href="#Rect">Rect</a> to compare</td>
|
|
</tr> <tr> <td><a name="SkRect_notequal_operator_b"> <code><strong>b </strong></code> </a></td> <td>
|
|
<a href="#Rect">Rect</a> to compare</td>
|
|
</tr>
|
|
</table>
|
|
|
|
### Return Value
|
|
|
|
true if members are not equal
|
|
|
|
### Example
|
|
|
|
<div><fiddle-embed name="286072f8c27ff15be9eb945fa38dc9f7">
|
|
|
|
#### Example Output
|
|
|
|
~~~~
|
|
test with NaN is not equal to itself
|
|
~~~~
|
|
|
|
</fiddle-embed></div>
|
|
|
|
### See Also
|
|
|
|
<a href="#SkRect_equal_operator">operator==(const SkRect& a, const SkRect& b)</a>
|
|
|
|
---
|
|
|
|
## <a name="As_Points"></a> As Points
|
|
|
|
| name | description |
|
|
| --- | --- |
|
|
| <a href="#SkRect_setBounds">setBounds</a> | sets to upper and lower limits of <a href="SkPoint_Reference#Point">Point</a> array |
|
|
| <a href="#SkRect_setBoundsCheck">setBoundsCheck</a> | sets to upper and lower limits of <a href="SkPoint_Reference#Point">Point</a> array |
|
|
| <a href="#SkRect_toQuad">toQuad</a> | returns four corners as <a href="SkPoint_Reference#Point">Point</a> |
|
|
|
|
<a name="SkRect_toQuad"></a>
|
|
## toQuad
|
|
|
|
<pre style="padding: 1em 1em 1em 1em;width: 62.5em; background-color: #f0f0f0">
|
|
void toQuad(SkPoint quad[4]) const
|
|
</pre>
|
|
|
|
Returns four points in <a href="#SkRect_toQuad_quad">quad</a> that enclose <a href="#Rect">Rect</a> ordered as: top-left, top-right,
|
|
bottom-right, bottom-left.
|
|
|
|
### Parameters
|
|
|
|
<table> <tr> <td><a name="SkRect_toQuad_quad"> <code><strong>quad </strong></code> </a></td> <td>
|
|
storage for corners of <a href="#Rect">Rect</a></td>
|
|
</tr>
|
|
</table>
|
|
|
|
### Example
|
|
|
|
<div><fiddle-embed name="59a6e7d202ac17ab80ec21b233e51f59">
|
|
|
|
#### Example Output
|
|
|
|
~~~~
|
|
rect: {1, 2, 3, 4}
|
|
corners: {1, 2} {3, 2} {3, 4} {1, 4}
|
|
~~~~
|
|
|
|
</fiddle-embed></div>
|
|
|
|
### See Also
|
|
|
|
<a href="SkPath_Reference#SkPath_addRect">SkPath::addRect</a><sup><a href="SkPath_Reference#SkPath_addRect_2">[2]</a></sup><sup><a href="SkPath_Reference#SkPath_addRect_3">[3]</a></sup>
|
|
|
|
---
|
|
|
|
<a name="SkRect_setBounds"></a>
|
|
## setBounds
|
|
|
|
<pre style="padding: 1em 1em 1em 1em;width: 62.5em; background-color: #f0f0f0">
|
|
void setBounds(const SkPoint pts[], int count)
|
|
</pre>
|
|
|
|
Sets to bounds of <a href="SkPoint_Reference#Point">Point</a> array with <a href="#SkRect_setBounds_count">count</a> entries. If <a href="#SkRect_setBounds_count">count</a> is zero or smaller,
|
|
or if <a href="SkPoint_Reference#Point">Point</a> array contains an infinity or NaN, sets to (0, 0, 0, 0).
|
|
|
|
Result is either empty or sorted: <a href="#SkRect_fLeft">fLeft</a> is less than or equal to <a href="#SkRect_fRight">fRight</a>, and
|
|
<a href="#SkRect_fTop">fTop</a> is less than or equal to <a href="#SkRect_fBottom">fBottom</a>.
|
|
|
|
### Parameters
|
|
|
|
<table> <tr> <td><a name="SkRect_setBounds_pts"> <code><strong>pts </strong></code> </a></td> <td>
|
|
<a href="SkPoint_Reference#Point">Point</a> array</td>
|
|
</tr> <tr> <td><a name="SkRect_setBounds_count"> <code><strong>count </strong></code> </a></td> <td>
|
|
entries in array</td>
|
|
</tr>
|
|
</table>
|
|
|
|
### Example
|
|
|
|
<div><fiddle-embed name="cf0da15f48aa54fd1889e7f913601710">
|
|
|
|
#### Example Output
|
|
|
|
~~~~
|
|
count: 0 rect: 0, 0, 0, 0
|
|
added: 3, 4 count: 1 rect: 3, 4, 3, 4
|
|
added: 1, 2 count: 2 rect: 1, 2, 3, 4
|
|
added: 5, 6 count: 3 rect: 1, 2, 5, 6
|
|
added: nan, 8 count: 4 rect: 0, 0, 0, 0
|
|
~~~~
|
|
|
|
</fiddle-embed></div>
|
|
|
|
### See Also
|
|
|
|
<a href="#SkRect_set">set</a><sup><a href="#SkRect_set_2">[2]</a></sup><sup><a href="#SkRect_set_3">[3]</a></sup><sup><a href="#SkRect_set_4">[4]</a></sup> <a href="#SkRect_setBoundsCheck">setBoundsCheck</a> <a href="SkPath_Reference#SkPath_addPoly">SkPath::addPoly</a>
|
|
|
|
---
|
|
|
|
<a name="SkRect_setBoundsCheck"></a>
|
|
## setBoundsCheck
|
|
|
|
<pre style="padding: 1em 1em 1em 1em;width: 62.5em; background-color: #f0f0f0">
|
|
bool setBoundsCheck(const SkPoint pts[], int count)
|
|
</pre>
|
|
|
|
Sets to bounds of <a href="SkPoint_Reference#Point">Point</a> array with <a href="#SkRect_setBoundsCheck_count">count</a> entries. Returns false if <a href="#SkRect_setBoundsCheck_count">count</a> is
|
|
zero or smaller, or if <a href="SkPoint_Reference#Point">Point</a> array contains an infinity or NaN; in these cases
|
|
sets <a href="#Rect">Rect</a> to (0, 0, 0, 0).
|
|
|
|
Result is either empty or sorted: <a href="#SkRect_fLeft">fLeft</a> is less than or equal to <a href="#SkRect_fRight">fRight</a>, and
|
|
<a href="#SkRect_fTop">fTop</a> is less than or equal to <a href="#SkRect_fBottom">fBottom</a>.
|
|
|
|
### Parameters
|
|
|
|
<table> <tr> <td><a name="SkRect_setBoundsCheck_pts"> <code><strong>pts </strong></code> </a></td> <td>
|
|
<a href="SkPoint_Reference#Point">Point</a> array</td>
|
|
</tr> <tr> <td><a name="SkRect_setBoundsCheck_count"> <code><strong>count </strong></code> </a></td> <td>
|
|
entries in array</td>
|
|
</tr>
|
|
</table>
|
|
|
|
### Return Value
|
|
|
|
true if all <a href="SkPoint_Reference#Point">Point</a> values are finite
|
|
|
|
### Example
|
|
|
|
<div><fiddle-embed name="83d879b92683b15f9daaf0c9e71c5b35">
|
|
|
|
#### Example Output
|
|
|
|
~~~~
|
|
count: 0 rect: 0, 0, 0, 0 success: true
|
|
added: 3, 4 count: 1 rect: 3, 4, 3, 4 success: true
|
|
added: 1, 2 count: 2 rect: 1, 2, 3, 4 success: true
|
|
added: 5, 6 count: 3 rect: 1, 2, 5, 6 success: true
|
|
added: nan, 8 count: 4 rect: 0, 0, 0, 0 success: false
|
|
~~~~
|
|
|
|
</fiddle-embed></div>
|
|
|
|
### See Also
|
|
|
|
<a href="#SkRect_set">set</a><sup><a href="#SkRect_set_2">[2]</a></sup><sup><a href="#SkRect_set_3">[3]</a></sup><sup><a href="#SkRect_set_4">[4]</a></sup> <a href="#SkRect_setBounds">setBounds</a> <a href="SkPath_Reference#SkPath_addPoly">SkPath::addPoly</a>
|
|
|
|
---
|
|
|
|
## <a name="Set"></a> Set
|
|
|
|
| name | description |
|
|
| --- | --- |
|
|
| <a href="#SkRect_set">set</a> | sets to <a href="undocumented#SkScalar">SkScalar</a> input (left, top, right, bottom) and others |
|
|
| | <a href="#SkRect_set">set(const SkIRect& src)</a> |
|
|
| <a href="#SkRect_setEmpty">setEmpty</a> | sets to (0, 0, 0, 0) |
|
|
| <a href="#SkRect_setLTRB">setLTRB</a> | sets to <a href="undocumented#SkScalar">SkScalar</a> input (left, top, right, bottom) |
|
|
| <a href="#SkRect_setWH">setWH</a> | sets to <a href="undocumented#SkScalar">SkScalar</a> input (0, 0, width, height) |
|
|
| <a href="#SkRect_setXYWH">setXYWH</a> | sets to <a href="undocumented#SkScalar">SkScalar</a> input (x, y, width, height) |
|
|
|
|
<a name="SkRect_setEmpty"></a>
|
|
## setEmpty
|
|
|
|
<pre style="padding: 1em 1em 1em 1em;width: 62.5em; background-color: #f0f0f0">
|
|
void setEmpty()
|
|
</pre>
|
|
|
|
Sets <a href="#Rect">Rect</a> to (0, 0, 0, 0).
|
|
|
|
Many other rectangles are empty; if left is equal to or greater than right,
|
|
or if top is equal to or greater than bottom. Setting all members to zero
|
|
is a convenience, but does not designate a special empty rectangle.
|
|
|
|
### Example
|
|
|
|
<div><fiddle-embed name="2cf67542d45ef5d7a7efb673b651ff54">
|
|
|
|
#### Example Output
|
|
|
|
~~~~
|
|
rect: {3, 4, 1, 2} is empty
|
|
rect: {0, 0, 0, 0} is empty
|
|
~~~~
|
|
|
|
</fiddle-embed></div>
|
|
|
|
### See Also
|
|
|
|
<a href="#SkRect_MakeEmpty">MakeEmpty</a> <a href="SkIRect_Reference#SkIRect_setEmpty">SkIRect::setEmpty</a>
|
|
|
|
---
|
|
|
|
<a name="SkRect_set"></a>
|
|
## set
|
|
|
|
<pre style="padding: 1em 1em 1em 1em;width: 62.5em; background-color: #f0f0f0">
|
|
void set(const SkIRect& src)
|
|
</pre>
|
|
|
|
Sets <a href="#Rect">Rect</a> to <a href="#SkRect_set_src">src</a>, promoting <a href="#SkRect_set_src">src</a> members from integer to <a href="undocumented#Scalar">Scalar</a>.
|
|
Very large values in <a href="#SkRect_set_src">src</a> may lose precision.
|
|
|
|
### Parameters
|
|
|
|
<table> <tr> <td><a name="SkRect_set_src"> <code><strong>src </strong></code> </a></td> <td>
|
|
integer <a href="#Rect">Rect</a></td>
|
|
</tr>
|
|
</table>
|
|
|
|
### Example
|
|
|
|
<div><fiddle-embed name="a10ad8d97062bc3f40942f47e5108917">
|
|
|
|
#### Example Output
|
|
|
|
~~~~
|
|
i_rect: {3, 4, 1, 2}
|
|
f_rect: {3, 4, 1, 2}
|
|
~~~~
|
|
|
|
</fiddle-embed></div>
|
|
|
|
### See Also
|
|
|
|
<a href="#SkRect_setLTRB">setLTRB</a> <a href="undocumented#SkIntToScalar">SkIntToScalar</a>
|
|
|
|
---
|
|
|
|
<a name="SkRect_set_2"></a>
|
|
|
|
<pre style="padding: 1em 1em 1em 1em;width: 62.5em; background-color: #f0f0f0">
|
|
void set(SkScalar left, SkScalar top, SkScalar right, SkScalar bottom)
|
|
</pre>
|
|
|
|
Sets <a href="#Rect">Rect</a> to (left, top, right, bottom).
|
|
left and right are not sorted; left is not necessarily less than right.
|
|
top and bottom are not sorted; top is not necessarily less than bottom.
|
|
|
|
### Parameters
|
|
|
|
<table> <tr> <td><a name="SkRect_set_2_left"> <code><strong>left </strong></code> </a></td> <td>
|
|
stored in <a href="#SkRect_fLeft">fLeft</a></td>
|
|
</tr> <tr> <td><a name="SkRect_set_2_top"> <code><strong>top </strong></code> </a></td> <td>
|
|
stored in <a href="#SkRect_fTop">fTop</a></td>
|
|
</tr> <tr> <td><a name="SkRect_set_2_right"> <code><strong>right </strong></code> </a></td> <td>
|
|
stored in <a href="#SkRect_fRight">fRight</a></td>
|
|
</tr> <tr> <td><a name="SkRect_set_2_bottom"> <code><strong>bottom </strong></code> </a></td> <td>
|
|
stored in <a href="#SkRect_fBottom">fBottom</a></td>
|
|
</tr>
|
|
</table>
|
|
|
|
### Example
|
|
|
|
<div><fiddle-embed name="9b29ea460d69b4d47323fd9e3e17721e">
|
|
|
|
#### Example Output
|
|
|
|
~~~~
|
|
rect1: {3, 4, 1, 2}
|
|
rect2: {3, 4, 1, 2}
|
|
~~~~
|
|
|
|
</fiddle-embed></div>
|
|
|
|
### See Also
|
|
|
|
<a href="#SkRect_setLTRB">setLTRB</a> <a href="#SkRect_setXYWH">setXYWH</a> <a href="SkIRect_Reference#SkIRect_set">SkIRect::set</a>
|
|
|
|
---
|
|
|
|
<a name="SkRect_setLTRB"></a>
|
|
## setLTRB
|
|
|
|
<pre style="padding: 1em 1em 1em 1em;width: 62.5em; background-color: #f0f0f0">
|
|
void setLTRB(SkScalar left, SkScalar top, SkScalar right, SkScalar bottom)
|
|
</pre>
|
|
|
|
Sets <a href="#Rect">Rect</a> to (left, top, right, bottom).
|
|
left and right are not sorted; left is not necessarily less than right.
|
|
top and bottom are not sorted; top is not necessarily less than bottom.
|
|
|
|
### Parameters
|
|
|
|
<table> <tr> <td><a name="SkRect_setLTRB_left"> <code><strong>left </strong></code> </a></td> <td>
|
|
stored in <a href="#SkRect_fLeft">fLeft</a></td>
|
|
</tr> <tr> <td><a name="SkRect_setLTRB_top"> <code><strong>top </strong></code> </a></td> <td>
|
|
stored in <a href="#SkRect_fTop">fTop</a></td>
|
|
</tr> <tr> <td><a name="SkRect_setLTRB_right"> <code><strong>right </strong></code> </a></td> <td>
|
|
stored in <a href="#SkRect_fRight">fRight</a></td>
|
|
</tr> <tr> <td><a name="SkRect_setLTRB_bottom"> <code><strong>bottom </strong></code> </a></td> <td>
|
|
stored in <a href="#SkRect_fBottom">fBottom</a></td>
|
|
</tr>
|
|
</table>
|
|
|
|
### Example
|
|
|
|
<div><fiddle-embed name="70692838793454c8e045d6eaf7edcbff">
|
|
|
|
#### Example Output
|
|
|
|
~~~~
|
|
rect1: {3, 4, 1, 2}
|
|
rect2: {3, 4, 1, 2}
|
|
~~~~
|
|
|
|
</fiddle-embed></div>
|
|
|
|
### See Also
|
|
|
|
<a href="#SkRect_set">set</a><sup><a href="#SkRect_set_2">[2]</a></sup><sup><a href="#SkRect_set_3">[3]</a></sup><sup><a href="#SkRect_set_4">[4]</a></sup> <a href="#SkRect_setXYWH">setXYWH</a> <a href="SkIRect_Reference#SkIRect_set">SkIRect::set</a>
|
|
|
|
---
|
|
|
|
<a name="SkRect_set_3"></a>
|
|
|
|
<pre style="padding: 1em 1em 1em 1em;width: 62.5em; background-color: #f0f0f0">
|
|
void set(const SkPoint pts[], int count)
|
|
</pre>
|
|
|
|
Sets to bounds of <a href="SkPoint_Reference#Point">Point</a> array with <a href="#SkRect_set_3_count">count</a> entries. If <a href="#SkRect_set_3_count">count</a> is zero or smaller,
|
|
or if <a href="SkPoint_Reference#Point">Point</a> array contains an infinity or NaN, sets <a href="#Rect">Rect</a> to (0, 0, 0, 0).
|
|
|
|
Result is either empty or sorted: <a href="#SkRect_fLeft">fLeft</a> is less than or equal to <a href="#SkRect_fRight">fRight</a>, and
|
|
<a href="#SkRect_fTop">fTop</a> is less than or equal to <a href="#SkRect_fBottom">fBottom</a>.
|
|
|
|
### Parameters
|
|
|
|
<table> <tr> <td><a name="SkRect_set_3_pts"> <code><strong>pts </strong></code> </a></td> <td>
|
|
<a href="SkPoint_Reference#Point">Point</a> array</td>
|
|
</tr> <tr> <td><a name="SkRect_set_3_count"> <code><strong>count </strong></code> </a></td> <td>
|
|
entries in array</td>
|
|
</tr>
|
|
</table>
|
|
|
|
### Example
|
|
|
|
<div><fiddle-embed name="94295fa5197e21256171b99b4023dd48">
|
|
|
|
#### Example Output
|
|
|
|
~~~~
|
|
count: 0 rect: 0, 0, 0, 0
|
|
added: 3, 4 count: 1 rect: 3, 4, 3, 4
|
|
added: 1, 2 count: 2 rect: 1, 2, 3, 4
|
|
added: 5, 6 count: 3 rect: 1, 2, 5, 6
|
|
added: nan, 8 count: 4 rect: 0, 0, 0, 0
|
|
~~~~
|
|
|
|
</fiddle-embed></div>
|
|
|
|
### See Also
|
|
|
|
<a href="#SkRect_setBounds">setBounds</a> <a href="#SkRect_setBoundsCheck">setBoundsCheck</a> <a href="SkPath_Reference#SkPath_addPoly">SkPath::addPoly</a>
|
|
|
|
---
|
|
|
|
<a name="SkRect_set_4"></a>
|
|
|
|
<pre style="padding: 1em 1em 1em 1em;width: 62.5em; background-color: #f0f0f0">
|
|
void set(const SkPoint& p0, const SkPoint& p1)
|
|
</pre>
|
|
|
|
Sets bounds to the smallest <a href="#Rect">Rect</a> enclosing <a href="SkPoint_Reference#Point">Points</a> <a href="#SkRect_set_4_p0">p0</a> and <a href="#SkRect_set_4_p1">p1</a>. The result is
|
|
sorted and may be empty. Does not check to see if values are finite.
|
|
|
|
### Parameters
|
|
|
|
<table> <tr> <td><a name="SkRect_set_4_p0"> <code><strong>p0 </strong></code> </a></td> <td>
|
|
corner to include</td>
|
|
</tr> <tr> <td><a name="SkRect_set_4_p1"> <code><strong>p1 </strong></code> </a></td> <td>
|
|
corner to include</td>
|
|
</tr>
|
|
</table>
|
|
|
|
### Example
|
|
|
|
<div><fiddle-embed name="ee72450381f768f3869153cdbeccdc3e"><div><a href="#SkRect_set_4_p0">p0</a> and <a href="#SkRect_set_4_p1">p1</a> may be swapped and have the same effect unless one contains NaN.</div></fiddle-embed></div>
|
|
|
|
### See Also
|
|
|
|
<a href="#SkRect_setBounds">setBounds</a> <a href="#SkRect_setBoundsCheck">setBoundsCheck</a>
|
|
|
|
---
|
|
|
|
<a name="SkRect_setXYWH"></a>
|
|
## setXYWH
|
|
|
|
<pre style="padding: 1em 1em 1em 1em;width: 62.5em; background-color: #f0f0f0">
|
|
void setXYWH(SkScalar x, SkScalar y, SkScalar width, SkScalar height)
|
|
</pre>
|
|
|
|
Sets <a href="#Rect">Rect</a> to(x, y, x + width, y + height).
|
|
Does not validate input;
|
|
width or height may be negative.
|
|
|
|
### Parameters
|
|
|
|
<table> <tr> <td><a name="SkRect_setXYWH_x"> <code><strong>x </strong></code> </a></td> <td>
|
|
stored in <a href="#SkRect_fLeft">fLeft</a></td>
|
|
</tr> <tr> <td><a name="SkRect_setXYWH_y"> <code><strong>y </strong></code> </a></td> <td>
|
|
stored in <a href="#SkRect_fTop">fTop</a></td>
|
|
</tr> <tr> <td><a name="SkRect_setXYWH_width"> <code><strong>width </strong></code> </a></td> <td>
|
|
added to x and stored in <a href="#SkRect_fRight">fRight</a></td>
|
|
</tr> <tr> <td><a name="SkRect_setXYWH_height"> <code><strong>height </strong></code> </a></td> <td>
|
|
added to y and stored in <a href="#SkRect_fBottom">fBottom</a></td>
|
|
</tr>
|
|
</table>
|
|
|
|
### Example
|
|
|
|
<div><fiddle-embed name="373cce4c61b9da0384b735b838765163">
|
|
|
|
#### Example Output
|
|
|
|
~~~~
|
|
rect: 5, 35, -10, 60 isEmpty: true
|
|
rect: -10, 35, 5, 60 isEmpty: false
|
|
~~~~
|
|
|
|
</fiddle-embed></div>
|
|
|
|
### See Also
|
|
|
|
<a href="#SkRect_MakeXYWH">MakeXYWH</a> <a href="#SkRect_setLTRB">setLTRB</a> <a href="#SkRect_set">set</a><sup><a href="#SkRect_set_2">[2]</a></sup><sup><a href="#SkRect_set_3">[3]</a></sup><sup><a href="#SkRect_set_4">[4]</a></sup> <a href="SkIRect_Reference#SkIRect_setXYWH">SkIRect::setXYWH</a>
|
|
|
|
---
|
|
|
|
<a name="SkRect_setWH"></a>
|
|
## setWH
|
|
|
|
<pre style="padding: 1em 1em 1em 1em;width: 62.5em; background-color: #f0f0f0">
|
|
void setWH(SkScalar width, SkScalar height)
|
|
</pre>
|
|
|
|
Sets <a href="#Rect">Rect</a> to (0, 0, width, height). Does not validate input;
|
|
width or height may be negative.
|
|
|
|
### Parameters
|
|
|
|
<table> <tr> <td><a name="SkRect_setWH_width"> <code><strong>width </strong></code> </a></td> <td>
|
|
stored in <a href="#SkRect_fRight">fRight</a></td>
|
|
</tr> <tr> <td><a name="SkRect_setWH_height"> <code><strong>height </strong></code> </a></td> <td>
|
|
stored in <a href="#SkRect_fBottom">fBottom</a></td>
|
|
</tr>
|
|
</table>
|
|
|
|
### Example
|
|
|
|
<div><fiddle-embed name="9cb5fee17802fa49341f3707bdf5d235">
|
|
|
|
#### Example Output
|
|
|
|
~~~~
|
|
rect: 0, 0, -15, 25 isEmpty: true
|
|
rect: -15, 0, 0, 25 isEmpty: false
|
|
~~~~
|
|
|
|
</fiddle-embed></div>
|
|
|
|
### See Also
|
|
|
|
<a href="#SkRect_MakeWH">MakeWH</a> <a href="#SkRect_setXYWH">setXYWH</a> <a href="#SkRect_isetWH">isetWH</a>
|
|
|
|
---
|
|
|
|
## <a name="From_Integers"></a> From Integers
|
|
|
|
| name | description |
|
|
| --- | --- |
|
|
| <a href="#SkRect_iset">iset</a> | sets to int input (left, top, right, bottom) |
|
|
| <a href="#SkRect_isetWH">isetWH</a> | sets to int input (0, 0, width, height) |
|
|
|
|
<a name="SkRect_iset"></a>
|
|
## iset
|
|
|
|
<pre style="padding: 1em 1em 1em 1em;width: 62.5em; background-color: #f0f0f0">
|
|
void iset(int left, int top, int right, int bottom)
|
|
</pre>
|
|
|
|
Sets <a href="#Rect">Rect</a> to (left, top, right, bottom).
|
|
All parameters are promoted from integer to <a href="undocumented#Scalar">Scalar</a>.
|
|
left and right are not sorted; left is not necessarily less than right.
|
|
top and bottom are not sorted; top is not necessarily less than bottom.
|
|
|
|
### Parameters
|
|
|
|
<table> <tr> <td><a name="SkRect_iset_left"> <code><strong>left </strong></code> </a></td> <td>
|
|
promoted to <a href="undocumented#SkScalar">SkScalar</a> and stored in <a href="#SkRect_fLeft">fLeft</a></td>
|
|
</tr> <tr> <td><a name="SkRect_iset_top"> <code><strong>top </strong></code> </a></td> <td>
|
|
promoted to <a href="undocumented#SkScalar">SkScalar</a> and stored in <a href="#SkRect_fTop">fTop</a></td>
|
|
</tr> <tr> <td><a name="SkRect_iset_right"> <code><strong>right </strong></code> </a></td> <td>
|
|
promoted to <a href="undocumented#SkScalar">SkScalar</a> and stored in <a href="#SkRect_fRight">fRight</a></td>
|
|
</tr> <tr> <td><a name="SkRect_iset_bottom"> <code><strong>bottom </strong></code> </a></td> <td>
|
|
promoted to <a href="undocumented#SkScalar">SkScalar</a> and stored in <a href="#SkRect_fBottom">fBottom</a></td>
|
|
</tr>
|
|
</table>
|
|
|
|
### Example
|
|
|
|
<div><fiddle-embed name="18532f1aa90b76364fb8d7ea072f1892">
|
|
|
|
#### Example Output
|
|
|
|
~~~~
|
|
rect1: {3, 4, 1, 2}
|
|
rect2: {3, 4, 1, 2}
|
|
~~~~
|
|
|
|
</fiddle-embed></div>
|
|
|
|
### See Also
|
|
|
|
<a href="#SkRect_set">set</a><sup><a href="#SkRect_set_2">[2]</a></sup><sup><a href="#SkRect_set_3">[3]</a></sup><sup><a href="#SkRect_set_4">[4]</a></sup> <a href="#SkRect_setLTRB">setLTRB</a> <a href="SkIRect_Reference#SkIRect_set">SkIRect::set</a> <a href="undocumented#SkIntToScalar">SkIntToScalar</a>
|
|
|
|
---
|
|
|
|
<a name="SkRect_isetWH"></a>
|
|
## isetWH
|
|
|
|
<pre style="padding: 1em 1em 1em 1em;width: 62.5em; background-color: #f0f0f0">
|
|
void isetWH(int width, int height)
|
|
</pre>
|
|
|
|
Sets <a href="#Rect">Rect</a> to (0, 0, width, height).
|
|
width and height may be zero or negative. width and height are promoted from
|
|
integer to <a href="undocumented#SkScalar">SkScalar</a>, large values may lose precision.
|
|
|
|
### Parameters
|
|
|
|
<table> <tr> <td><a name="SkRect_isetWH_width"> <code><strong>width </strong></code> </a></td> <td>
|
|
promoted to <a href="undocumented#SkScalar">SkScalar</a> and stored in <a href="#SkRect_fRight">fRight</a></td>
|
|
</tr> <tr> <td><a name="SkRect_isetWH_height"> <code><strong>height </strong></code> </a></td> <td>
|
|
promoted to <a href="undocumented#SkScalar">SkScalar</a> and stored in <a href="#SkRect_fBottom">fBottom</a></td>
|
|
</tr>
|
|
</table>
|
|
|
|
### Example
|
|
|
|
<div><fiddle-embed name="ee6000080fc7123214ea404018cf9176">
|
|
|
|
#### Example Output
|
|
|
|
~~~~
|
|
rect1: {0, 0, 1, 2}
|
|
rect2: {0, 0, 1, 2}
|
|
~~~~
|
|
|
|
</fiddle-embed></div>
|
|
|
|
### See Also
|
|
|
|
<a href="#SkRect_MakeWH">MakeWH</a> <a href="#SkRect_MakeXYWH">MakeXYWH</a> <a href="#SkRect_iset">iset</a> <a href="SkIRect_Reference#SkIRect">SkIRect</a>:<a href="#SkRect_MakeWH">MakeWH</a>
|
|
|
|
---
|
|
|
|
## <a name="Inset_Outset_Offset"></a> Inset Outset Offset
|
|
|
|
| name | description |
|
|
| --- | --- |
|
|
| <a href="#SkRect_inset">inset</a> | moves the sides symmetrically about the center |
|
|
| <a href="#SkRect_offset">offset</a> | translates sides without changing width and height |
|
|
| | <a href="#SkRect_offset">offset(SkScalar dx, SkScalar dy)</a> |
|
|
| <a href="#SkRect_offsetTo">offsetTo</a> | translates to (x, y) without changing width and height |
|
|
| <a href="#SkRect_outset">outset</a> | moves the sides symmetrically about the center |
|
|
|
|
<a name="SkRect_makeOffset"></a>
|
|
## makeOffset
|
|
|
|
<pre style="padding: 1em 1em 1em 1em;width: 62.5em; background-color: #f0f0f0">
|
|
SkRect makeOffset(SkScalar dx, SkScalar dy) const
|
|
</pre>
|
|
|
|
Returns <a href="#Rect">Rect</a> offset by (<a href="#SkRect_makeOffset_dx">dx</a>, <a href="#SkRect_makeOffset_dy">dy</a>).
|
|
|
|
If <a href="#SkRect_makeOffset_dx">dx</a> is negative, <a href="#Rect">Rect</a> returned is moved to the left.
|
|
If <a href="#SkRect_makeOffset_dx">dx</a> is positive, <a href="#Rect">Rect</a> returned is moved to the right.
|
|
If <a href="#SkRect_makeOffset_dy">dy</a> is negative, <a href="#Rect">Rect</a> returned is moved upward.
|
|
If <a href="#SkRect_makeOffset_dy">dy</a> is positive, <a href="#Rect">Rect</a> returned is moved downward.
|
|
|
|
### Parameters
|
|
|
|
<table> <tr> <td><a name="SkRect_makeOffset_dx"> <code><strong>dx </strong></code> </a></td> <td>
|
|
added to <a href="#SkRect_fLeft">fLeft</a> and <a href="#SkRect_fRight">fRight</a></td>
|
|
</tr> <tr> <td><a name="SkRect_makeOffset_dy"> <code><strong>dy </strong></code> </a></td> <td>
|
|
added to <a href="#SkRect_fTop">fTop</a> and <a href="#SkRect_fBottom">fBottom</a></td>
|
|
</tr>
|
|
</table>
|
|
|
|
### Return Value
|
|
|
|
<a href="#Rect">Rect</a> offset in x or y, with original width and height
|
|
|
|
### Example
|
|
|
|
<div><fiddle-embed name="98841ab0a932f99cccd8e6a34d94ba05">
|
|
|
|
#### Example Output
|
|
|
|
~~~~
|
|
rect: 10, 50, 20, 60 isEmpty: false
|
|
rect: 25, 82, 35, 92 isEmpty: false
|
|
~~~~
|
|
|
|
</fiddle-embed></div>
|
|
|
|
### See Also
|
|
|
|
<a href="#SkRect_offset">offset</a><sup><a href="#SkRect_offset_2">[2]</a></sup> <a href="#SkRect_makeInset">makeInset</a> <a href="#SkRect_makeOutset">makeOutset</a> <a href="SkIRect_Reference#SkIRect_makeOffset">SkIRect::makeOffset</a>
|
|
|
|
---
|
|
|
|
<a name="SkRect_makeInset"></a>
|
|
## makeInset
|
|
|
|
<pre style="padding: 1em 1em 1em 1em;width: 62.5em; background-color: #f0f0f0">
|
|
SkRect makeInset(SkScalar dx, SkScalar dy) const
|
|
</pre>
|
|
|
|
Returns <a href="#Rect">Rect</a>, inset by (<a href="#SkRect_makeInset_dx">dx</a>, <a href="#SkRect_makeInset_dy">dy</a>).
|
|
|
|
If <a href="#SkRect_makeInset_dx">dx</a> is negative, <a href="#Rect">Rect</a> returned is wider.
|
|
If <a href="#SkRect_makeInset_dx">dx</a> is positive, <a href="#Rect">Rect</a> returned is narrower.
|
|
If <a href="#SkRect_makeInset_dy">dy</a> is negative, <a href="#Rect">Rect</a> returned is taller.
|
|
If <a href="#SkRect_makeInset_dy">dy</a> is positive, <a href="#Rect">Rect</a> returned is shorter.
|
|
|
|
### Parameters
|
|
|
|
<table> <tr> <td><a name="SkRect_makeInset_dx"> <code><strong>dx </strong></code> </a></td> <td>
|
|
added to <a href="#SkRect_fLeft">fLeft</a> and subtracted from <a href="#SkRect_fRight">fRight</a></td>
|
|
</tr> <tr> <td><a name="SkRect_makeInset_dy"> <code><strong>dy </strong></code> </a></td> <td>
|
|
added to <a href="#SkRect_fTop">fTop</a> and subtracted from <a href="#SkRect_fBottom">fBottom</a></td>
|
|
</tr>
|
|
</table>
|
|
|
|
### Return Value
|
|
|
|
<a href="#Rect">Rect</a> inset symmetrically left and right, top and bottom
|
|
|
|
### Example
|
|
|
|
<div><fiddle-embed name="b8d32ab2f7ea3d4d5fb5a4ea2156f1c5">
|
|
|
|
#### Example Output
|
|
|
|
~~~~
|
|
rect: 10, 50, 20, 60 isEmpty: false
|
|
rect: 25, 82, 5, 28 isEmpty: true
|
|
~~~~
|
|
|
|
</fiddle-embed></div>
|
|
|
|
### See Also
|
|
|
|
<a href="#SkRect_inset">inset</a> <a href="#SkRect_makeOffset">makeOffset</a> <a href="#SkRect_makeOutset">makeOutset</a> <a href="SkIRect_Reference#SkIRect_makeInset">SkIRect::makeInset</a>
|
|
|
|
---
|
|
|
|
<a name="SkRect_makeOutset"></a>
|
|
## makeOutset
|
|
|
|
<pre style="padding: 1em 1em 1em 1em;width: 62.5em; background-color: #f0f0f0">
|
|
SkRect makeOutset(SkScalar dx, SkScalar dy) const
|
|
</pre>
|
|
|
|
Returns <a href="#Rect">Rect</a>, outset by (<a href="#SkRect_makeOutset_dx">dx</a>, <a href="#SkRect_makeOutset_dy">dy</a>).
|
|
|
|
If <a href="#SkRect_makeOutset_dx">dx</a> is negative, <a href="#Rect">Rect</a> returned is narrower.
|
|
If <a href="#SkRect_makeOutset_dx">dx</a> is positive, <a href="#Rect">Rect</a> returned is wider.
|
|
If <a href="#SkRect_makeOutset_dy">dy</a> is negative, <a href="#Rect">Rect</a> returned is shorter.
|
|
If <a href="#SkRect_makeOutset_dy">dy</a> is positive, <a href="#Rect">Rect</a> returned is taller.
|
|
|
|
### Parameters
|
|
|
|
<table> <tr> <td><a name="SkRect_makeOutset_dx"> <code><strong>dx </strong></code> </a></td> <td>
|
|
subtracted to <a href="#SkRect_fLeft">fLeft</a> and added from <a href="#SkRect_fRight">fRight</a></td>
|
|
</tr> <tr> <td><a name="SkRect_makeOutset_dy"> <code><strong>dy </strong></code> </a></td> <td>
|
|
subtracted to <a href="#SkRect_fTop">fTop</a> and added from <a href="#SkRect_fBottom">fBottom</a></td>
|
|
</tr>
|
|
</table>
|
|
|
|
### Return Value
|
|
|
|
<a href="#Rect">Rect</a> outset symmetrically left and right, top and bottom
|
|
|
|
### Example
|
|
|
|
<div><fiddle-embed name="87176fc60914cbca9c6a20998a033c24">
|
|
|
|
#### Example Output
|
|
|
|
~~~~
|
|
rect: 10, 50, 20, 60 isEmpty: false
|
|
rect: -5, 18, 35, 92 isEmpty: false
|
|
~~~~
|
|
|
|
</fiddle-embed></div>
|
|
|
|
### See Also
|
|
|
|
<a href="#SkRect_outset">outset</a> <a href="#SkRect_makeOffset">makeOffset</a> <a href="#SkRect_makeInset">makeInset</a> <a href="SkIRect_Reference#SkIRect_makeOutset">SkIRect::makeOutset</a>
|
|
|
|
---
|
|
|
|
<a name="SkRect_offset"></a>
|
|
## offset
|
|
|
|
<pre style="padding: 1em 1em 1em 1em;width: 62.5em; background-color: #f0f0f0">
|
|
void offset(SkScalar dx, SkScalar dy)
|
|
</pre>
|
|
|
|
Offsets <a href="#Rect">Rect</a> by adding <a href="#SkRect_offset_dx">dx</a> to <a href="#SkRect_fLeft">fLeft</a>, <a href="#SkRect_fRight">fRight</a>; and by adding <a href="#SkRect_offset_dy">dy</a> to <a href="#SkRect_fTop">fTop</a>, <a href="#SkRect_fBottom">fBottom</a>.
|
|
|
|
If <a href="#SkRect_offset_dx">dx</a> is negative, moves <a href="#Rect">Rect</a> to the left.
|
|
If <a href="#SkRect_offset_dx">dx</a> is positive, moves <a href="#Rect">Rect</a> to the right.
|
|
If <a href="#SkRect_offset_dy">dy</a> is negative, moves <a href="#Rect">Rect</a> upward.
|
|
If <a href="#SkRect_offset_dy">dy</a> is positive, moves <a href="#Rect">Rect</a> downward.
|
|
|
|
### Parameters
|
|
|
|
<table> <tr> <td><a name="SkRect_offset_dx"> <code><strong>dx </strong></code> </a></td> <td>
|
|
offset added to <a href="#SkRect_fLeft">fLeft</a> and <a href="#SkRect_fRight">fRight</a></td>
|
|
</tr> <tr> <td><a name="SkRect_offset_dy"> <code><strong>dy </strong></code> </a></td> <td>
|
|
offset added to <a href="#SkRect_fTop">fTop</a> and <a href="#SkRect_fBottom">fBottom</a></td>
|
|
</tr>
|
|
</table>
|
|
|
|
### Example
|
|
|
|
<div><fiddle-embed name="04eb33f0fd376f2942ca5f1c7f6cbcfc">
|
|
|
|
#### Example Output
|
|
|
|
~~~~
|
|
rect: 15, 27, 55, 86
|
|
~~~~
|
|
|
|
</fiddle-embed></div>
|
|
|
|
### See Also
|
|
|
|
<a href="#SkRect_offsetTo">offsetTo</a> <a href="#SkRect_makeOffset">makeOffset</a> <a href="SkIRect_Reference#SkIRect_offset">SkIRect::offset</a><sup><a href="SkIRect_Reference#SkIRect_offset_2">[2]</a></sup>
|
|
|
|
---
|
|
|
|
<a name="SkRect_offset_2"></a>
|
|
|
|
<pre style="padding: 1em 1em 1em 1em;width: 62.5em; background-color: #f0f0f0">
|
|
void offset(const SkPoint& delta)
|
|
</pre>
|
|
|
|
Offsets <a href="#Rect">Rect</a> by adding <a href="#SkRect_offset_2_delta">delta</a>.fX to <a href="#SkRect_fLeft">fLeft</a>, <a href="#SkRect_fRight">fRight</a>; and by adding <a href="#SkRect_offset_2_delta">delta</a>.fY to
|
|
<a href="#SkRect_fTop">fTop</a>, <a href="#SkRect_fBottom">fBottom</a>.
|
|
|
|
If <a href="#SkRect_offset_2_delta">delta</a>.fX is negative, moves <a href="#Rect">Rect</a> to the left.
|
|
If <a href="#SkRect_offset_2_delta">delta</a>.fX is positive, moves <a href="#Rect">Rect</a> to the right.
|
|
If <a href="#SkRect_offset_2_delta">delta</a>.fY is negative, moves <a href="#Rect">Rect</a> upward.
|
|
If <a href="#SkRect_offset_2_delta">delta</a>.fY is positive, moves <a href="#Rect">Rect</a> downward.
|
|
|
|
### Parameters
|
|
|
|
<table> <tr> <td><a name="SkRect_offset_2_delta"> <code><strong>delta </strong></code> </a></td> <td>
|
|
added to <a href="#Rect">Rect</a></td>
|
|
</tr>
|
|
</table>
|
|
|
|
### Example
|
|
|
|
<div><fiddle-embed name="b24cf65561c98c1858a06c39f10fb797">
|
|
|
|
#### Example Output
|
|
|
|
~~~~
|
|
rect: 15, 27, 55, 86
|
|
~~~~
|
|
|
|
</fiddle-embed></div>
|
|
|
|
### See Also
|
|
|
|
<a href="#SkRect_offsetTo">offsetTo</a> <a href="#SkRect_makeOffset">makeOffset</a> <a href="SkIRect_Reference#SkIRect_offset">SkIRect::offset</a><sup><a href="SkIRect_Reference#SkIRect_offset_2">[2]</a></sup>
|
|
|
|
---
|
|
|
|
<a name="SkRect_offsetTo"></a>
|
|
## offsetTo
|
|
|
|
<pre style="padding: 1em 1em 1em 1em;width: 62.5em; background-color: #f0f0f0">
|
|
void offsetTo(SkScalar newX, SkScalar newY)
|
|
</pre>
|
|
|
|
Offsets <a href="#Rect">Rect</a> so that <a href="#SkRect_fLeft">fLeft</a> equals <a href="#SkRect_offsetTo_newX">newX</a>, and <a href="#SkRect_fTop">fTop</a> equals <a href="#SkRect_offsetTo_newY">newY</a>. width and height
|
|
are unchanged.
|
|
|
|
### Parameters
|
|
|
|
<table> <tr> <td><a name="SkRect_offsetTo_newX"> <code><strong>newX </strong></code> </a></td> <td>
|
|
stored in <a href="#SkRect_fLeft">fLeft</a>, preserving <a href="#SkRect_width">width</a></td>
|
|
</tr> <tr> <td><a name="SkRect_offsetTo_newY"> <code><strong>newY </strong></code> </a></td> <td>
|
|
stored in <a href="#SkRect_fTop">fTop</a>, preserving <a href="#SkRect_height">height</a></td>
|
|
</tr>
|
|
</table>
|
|
|
|
### Example
|
|
|
|
<div><fiddle-embed name="bedb04b7b3e1af3e8039f9cffe66989e">
|
|
|
|
#### Example Output
|
|
|
|
~~~~
|
|
rect: 15, 27, 55, 86
|
|
~~~~
|
|
|
|
</fiddle-embed></div>
|
|
|
|
### See Also
|
|
|
|
<a href="#SkRect_offset">offset</a><sup><a href="#SkRect_offset_2">[2]</a></sup> <a href="#SkRect_makeOffset">makeOffset</a> <a href="#SkRect_setXYWH">setXYWH</a> <a href="SkIRect_Reference#SkIRect_offsetTo">SkIRect::offsetTo</a>
|
|
|
|
---
|
|
|
|
<a name="SkRect_inset"></a>
|
|
## inset
|
|
|
|
<pre style="padding: 1em 1em 1em 1em;width: 62.5em; background-color: #f0f0f0">
|
|
void inset(SkScalar dx, SkScalar dy)
|
|
</pre>
|
|
|
|
Insets <a href="#Rect">Rect</a> by (<a href="#SkRect_inset_dx">dx</a>, <a href="#SkRect_inset_dy">dy</a>).
|
|
|
|
If <a href="#SkRect_inset_dx">dx</a> is positive, makes <a href="#Rect">Rect</a> narrower.
|
|
If <a href="#SkRect_inset_dx">dx</a> is negative, makes <a href="#Rect">Rect</a> wider.
|
|
If <a href="#SkRect_inset_dy">dy</a> is positive, makes <a href="#Rect">Rect</a> shorter.
|
|
If <a href="#SkRect_inset_dy">dy</a> is negative, makes <a href="#Rect">Rect</a> taller.
|
|
|
|
### Parameters
|
|
|
|
<table> <tr> <td><a name="SkRect_inset_dx"> <code><strong>dx </strong></code> </a></td> <td>
|
|
added to <a href="#SkRect_fLeft">fLeft</a> and subtracted from <a href="#SkRect_fRight">fRight</a></td>
|
|
</tr> <tr> <td><a name="SkRect_inset_dy"> <code><strong>dy </strong></code> </a></td> <td>
|
|
added to <a href="#SkRect_fTop">fTop</a> and subtracted from <a href="#SkRect_fBottom">fBottom</a></td>
|
|
</tr>
|
|
</table>
|
|
|
|
### Example
|
|
|
|
<div><fiddle-embed name="dae21340941dc6e4d048816dfd9f204c">
|
|
|
|
#### Example Output
|
|
|
|
~~~~
|
|
rect: 15, 27, 45, 60
|
|
~~~~
|
|
|
|
</fiddle-embed></div>
|
|
|
|
### See Also
|
|
|
|
<a href="#SkRect_outset">outset</a> <a href="#SkRect_makeInset">makeInset</a> <a href="SkIRect_Reference#SkIRect_inset">SkIRect::inset</a>
|
|
|
|
---
|
|
|
|
<a name="SkRect_outset"></a>
|
|
## outset
|
|
|
|
<pre style="padding: 1em 1em 1em 1em;width: 62.5em; background-color: #f0f0f0">
|
|
void outset(SkScalar dx, SkScalar dy)
|
|
</pre>
|
|
|
|
Outsets <a href="#Rect">Rect</a> by (<a href="#SkRect_outset_dx">dx</a>, <a href="#SkRect_outset_dy">dy</a>).
|
|
|
|
If <a href="#SkRect_outset_dx">dx</a> is positive, makes <a href="#Rect">Rect</a> wider.
|
|
If <a href="#SkRect_outset_dx">dx</a> is negative, makes <a href="#Rect">Rect</a> narrower.
|
|
If <a href="#SkRect_outset_dy">dy</a> is positive, makes <a href="#Rect">Rect</a> taller.
|
|
If <a href="#SkRect_outset_dy">dy</a> is negative, makes <a href="#Rect">Rect</a> shorter.
|
|
|
|
### Parameters
|
|
|
|
<table> <tr> <td><a name="SkRect_outset_dx"> <code><strong>dx </strong></code> </a></td> <td>
|
|
subtracted to <a href="#SkRect_fLeft">fLeft</a> and added from <a href="#SkRect_fRight">fRight</a></td>
|
|
</tr> <tr> <td><a name="SkRect_outset_dy"> <code><strong>dy </strong></code> </a></td> <td>
|
|
subtracted to <a href="#SkRect_fTop">fTop</a> and added from <a href="#SkRect_fBottom">fBottom</a></td>
|
|
</tr>
|
|
</table>
|
|
|
|
### Example
|
|
|
|
<div><fiddle-embed name="861f873ba660af8c8bf8b0b83d829cf4">
|
|
|
|
#### Example Output
|
|
|
|
~~~~
|
|
rect: 5, 1, 55, 86
|
|
~~~~
|
|
|
|
</fiddle-embed></div>
|
|
|
|
### See Also
|
|
|
|
<a href="#SkRect_inset">inset</a> <a href="#SkRect_makeOutset">makeOutset</a> <a href="SkIRect_Reference#SkIRect_outset">SkIRect::outset</a>
|
|
|
|
---
|
|
|
|
## <a name="Intersection"></a> Intersection
|
|
|
|
<a href="#Rect">Rects</a> intersect when they enclose a common area. To intersect, each of the pair
|
|
must describe area; <a href="#SkRect_fLeft">fLeft</a> is less than <a href="#SkRect_fRight">fRight</a>, and <a href="#SkRect_fTop">fTop</a> is less than <a href="#SkRect_fBottom">fBottom</a>;
|
|
empty() returns false. The intersection of <a href="#Rect">Rect</a> pair can be described by:
|
|
|
|
(max(a.fLeft, b.fLeft), max(a.fTop, b.fTop),
|
|
min(a.fRight, b.fRight), min(a.fBottom, b.fBottom)).
|
|
|
|
The intersection is only meaningful if the resulting <a href="#Rect">Rect</a> is not empty and
|
|
describes an area: <a href="#SkRect_fLeft">fLeft</a> is less than <a href="#SkRect_fRight">fRight</a>, and <a href="#SkRect_fTop">fTop</a> is less than <a href="#SkRect_fBottom">fBottom</a>.
|
|
|
|
| name | description |
|
|
| --- | --- |
|
|
| <a href="#SkRect_Intersects">Intersects</a> | returns true if areas overlap |
|
|
| <a href="#SkRect_contains">contains</a> | returns true if points are equal or inside |
|
|
| | <a href="#SkRect_contains">contains(SkScalar x, SkScalar y)</a> const |
|
|
| <a href="#SkRect_intersect">intersect</a> | sets to shared area; returns true if not empty |
|
|
| | <a href="#SkRect_intersect">intersect(const SkRect& r)</a> |
|
|
| <a href="#SkRect_intersects">intersects</a> | returns true if areas overlap |
|
|
| | <a href="#SkRect_intersects">intersects(SkScalar left, SkScalar top, SkScalar right, SkScalar bottom)</a> const |
|
|
|
|
<a name="SkRect_contains"></a>
|
|
## contains
|
|
|
|
<pre style="padding: 1em 1em 1em 1em;width: 62.5em; background-color: #f0f0f0">
|
|
bool contains(SkScalar x, SkScalar y) const
|
|
</pre>
|
|
|
|
Returns true if: <a href="#SkRect_fLeft">fLeft</a> <= x < <a href="#SkRect_fRight">fRight</a> && <a href="#SkRect_fTop">fTop</a> <= y < <a href="#SkRect_fBottom">fBottom</a>.
|
|
Returns false if <a href="#SkRect">SkRect</a> is empty.
|
|
|
|
### Parameters
|
|
|
|
<table> <tr> <td><a name="SkRect_contains_x"> <code><strong>x </strong></code> </a></td> <td>
|
|
test <a href="SkPoint_Reference#SkPoint">SkPoint</a> x-coordinate</td>
|
|
</tr> <tr> <td><a name="SkRect_contains_y"> <code><strong>y </strong></code> </a></td> <td>
|
|
test <a href="SkPoint_Reference#SkPoint">SkPoint</a> y-coordinate</td>
|
|
</tr>
|
|
</table>
|
|
|
|
### Return Value
|
|
|
|
true if (x, y) is inside <a href="#SkRect">SkRect</a>
|
|
|
|
### Example
|
|
|
|
<div><fiddle-embed name="85be528a78945a6dc4f7dccb80a80746">
|
|
|
|
#### Example Output
|
|
|
|
~~~~
|
|
rect: (30, 50, 40, 60) contains (30, 50)
|
|
rect: (30, 50, 40, 60) does not contain (39, 49)
|
|
rect: (30, 50, 40, 60) does not contain (29, 59)
|
|
~~~~
|
|
|
|
</fiddle-embed></div>
|
|
|
|
### See Also
|
|
|
|
<a href="SkIRect_Reference#SkIRect_contains">SkIRect::contains</a><sup><a href="SkIRect_Reference#SkIRect_contains_2">[2]</a></sup><sup><a href="SkIRect_Reference#SkIRect_contains_3">[3]</a></sup><sup><a href="SkIRect_Reference#SkIRect_contains_4">[4]</a></sup>
|
|
|
|
---
|
|
|
|
<a name="SkRect_contains_2"></a>
|
|
|
|
<pre style="padding: 1em 1em 1em 1em;width: 62.5em; background-color: #f0f0f0">
|
|
bool contains(const SkRect& r) const
|
|
</pre>
|
|
|
|
Returns true if <a href="#Rect">Rect</a> contains <a href="#SkRect_contains_2_r">r</a>.
|
|
Returns false if <a href="#Rect">Rect</a> is empty or <a href="#SkRect_contains_2_r">r</a> is empty.
|
|
|
|
<a href="#Rect">Rect</a> contains <a href="#SkRect_contains_2_r">r</a> when <a href="#Rect">Rect</a> area completely includes <a href="#SkRect_contains_2_r">r</a> area.
|
|
|
|
### Parameters
|
|
|
|
<table> <tr> <td><a name="SkRect_contains_2_r"> <code><strong>r </strong></code> </a></td> <td>
|
|
<a href="#Rect">Rect</a> contained</td>
|
|
</tr>
|
|
</table>
|
|
|
|
### Return Value
|
|
|
|
true if all sides of <a href="#Rect">Rect</a> are outside <a href="#SkRect_contains_2_r">r</a>
|
|
|
|
### Example
|
|
|
|
<div><fiddle-embed name="92f9e6aa5bb76791139a24cf7d8df99e">
|
|
|
|
#### Example Output
|
|
|
|
~~~~
|
|
rect: (30, 50, 40, 60) contains (30, 50, 31, 51)
|
|
rect: (30, 50, 40, 60) does not contain (39, 49, 40, 50)
|
|
rect: (30, 50, 40, 60) does not contain (29, 59, 30, 60)
|
|
~~~~
|
|
|
|
</fiddle-embed></div>
|
|
|
|
### See Also
|
|
|
|
<a href="SkIRect_Reference#SkIRect_contains">SkIRect::contains</a><sup><a href="SkIRect_Reference#SkIRect_contains_2">[2]</a></sup><sup><a href="SkIRect_Reference#SkIRect_contains_3">[3]</a></sup><sup><a href="SkIRect_Reference#SkIRect_contains_4">[4]</a></sup>
|
|
|
|
---
|
|
|
|
<a name="SkRect_contains_3"></a>
|
|
|
|
<pre style="padding: 1em 1em 1em 1em;width: 62.5em; background-color: #f0f0f0">
|
|
bool contains(const SkIRect& r) const
|
|
</pre>
|
|
|
|
Returns true if <a href="#Rect">Rect</a> contains <a href="#SkRect_contains_3_r">r</a>.
|
|
Returns false if <a href="#Rect">Rect</a> is empty or <a href="#SkRect_contains_3_r">r</a> is empty.
|
|
|
|
<a href="#Rect">Rect</a> contains <a href="#SkRect_contains_3_r">r</a> when <a href="#Rect">Rect</a> area completely includes <a href="#SkRect_contains_3_r">r</a> area.
|
|
|
|
### Parameters
|
|
|
|
<table> <tr> <td><a name="SkRect_contains_3_r"> <code><strong>r </strong></code> </a></td> <td>
|
|
<a href="SkIRect_Reference#IRect">IRect</a> contained</td>
|
|
</tr>
|
|
</table>
|
|
|
|
### Return Value
|
|
|
|
true if all sides of <a href="#Rect">Rect</a> are outside <a href="#SkRect_contains_3_r">r</a>
|
|
|
|
### Example
|
|
|
|
<div><fiddle-embed name="dd58b699551dd44026a2c6386be27d88">
|
|
|
|
#### Example Output
|
|
|
|
~~~~
|
|
rect: (30, 50, 40, 60) contains (30, 50, 31, 51)
|
|
rect: (30, 50, 40, 60) does not contain (39, 49, 40, 50)
|
|
rect: (30, 50, 40, 60) does not contain (29, 59, 30, 60)
|
|
~~~~
|
|
|
|
</fiddle-embed></div>
|
|
|
|
### See Also
|
|
|
|
<a href="SkIRect_Reference#SkIRect_contains">SkIRect::contains</a><sup><a href="SkIRect_Reference#SkIRect_contains_2">[2]</a></sup><sup><a href="SkIRect_Reference#SkIRect_contains_3">[3]</a></sup><sup><a href="SkIRect_Reference#SkIRect_contains_4">[4]</a></sup>
|
|
|
|
---
|
|
|
|
<a name="SkRect_intersect"></a>
|
|
## intersect
|
|
|
|
<pre style="padding: 1em 1em 1em 1em;width: 62.5em; background-color: #f0f0f0">
|
|
bool intersect(const SkRect& r)
|
|
</pre>
|
|
|
|
Returns true if <a href="#Rect">Rect</a> intersects <a href="#SkRect_intersect_r">r</a>, and sets <a href="#Rect">Rect</a> to intersection.
|
|
Returns false if <a href="#Rect">Rect</a> does not intersect <a href="#SkRect_intersect_r">r</a>, and leaves <a href="#Rect">Rect</a> unchanged.
|
|
|
|
Returns false if either <a href="#SkRect_intersect_r">r</a> or <a href="#Rect">Rect</a> is empty, leaving <a href="#Rect">Rect</a> unchanged.
|
|
|
|
### Parameters
|
|
|
|
<table> <tr> <td><a name="SkRect_intersect_r"> <code><strong>r </strong></code> </a></td> <td>
|
|
limit of result</td>
|
|
</tr>
|
|
</table>
|
|
|
|
### Return Value
|
|
|
|
true if <a href="#SkRect_intersect_r">r</a> and <a href="#Rect">Rect</a> have area in common
|
|
|
|
### Example
|
|
|
|
<div><fiddle-embed name="70e5b3979fc8a31eda070cfed91bc271"><div>Two <a href="undocumented#SkDebugf">SkDebugf</a> calls are required. If the calls are combined, their arguments
|
|
may not be evaluated in left to right order: the printed intersection may
|
|
be before or after the call to intersect.</div>
|
|
|
|
#### Example Output
|
|
|
|
~~~~
|
|
intersection: 30, 60, 50, 80
|
|
~~~~
|
|
|
|
</fiddle-embed></div>
|
|
|
|
### See Also
|
|
|
|
<a href="#SkRect_intersects">intersects</a><sup><a href="#SkRect_intersects_2">[2]</a></sup> <a href="#SkRect_Intersects">Intersects</a> <a href="#SkRect_join">join</a><sup><a href="#SkRect_join_2">[2]</a></sup> <a href="SkIRect_Reference#SkIRect_intersect">SkIRect::intersect</a><sup><a href="SkIRect_Reference#SkIRect_intersect_2">[2]</a></sup><sup><a href="SkIRect_Reference#SkIRect_intersect_3">[3]</a></sup>
|
|
|
|
---
|
|
|
|
<a name="SkRect_intersect_2"></a>
|
|
|
|
<pre style="padding: 1em 1em 1em 1em;width: 62.5em; background-color: #f0f0f0">
|
|
bool intersect(SkScalar left, SkScalar top, SkScalar right, SkScalar bottom)
|
|
</pre>
|
|
|
|
Constructs <a href="#Rect">Rect</a> to intersect from (left, top, right, bottom). Does not sort
|
|
construction.
|
|
|
|
Returns true if <a href="#Rect">Rect</a> intersects construction, and sets <a href="#Rect">Rect</a> to intersection.
|
|
Returns false if <a href="#Rect">Rect</a> does not intersect construction, and leaves <a href="#Rect">Rect</a> unchanged.
|
|
|
|
Returns false if either construction or <a href="#Rect">Rect</a> is empty, leaving <a href="#Rect">Rect</a> unchanged.
|
|
|
|
### Parameters
|
|
|
|
<table> <tr> <td><a name="SkRect_intersect_2_left"> <code><strong>left </strong></code> </a></td> <td>
|
|
x minimum of constructed <a href="#Rect">Rect</a></td>
|
|
</tr> <tr> <td><a name="SkRect_intersect_2_top"> <code><strong>top </strong></code> </a></td> <td>
|
|
y minimum of constructed <a href="#Rect">Rect</a></td>
|
|
</tr> <tr> <td><a name="SkRect_intersect_2_right"> <code><strong>right </strong></code> </a></td> <td>
|
|
x maximum of constructed <a href="#Rect">Rect</a></td>
|
|
</tr> <tr> <td><a name="SkRect_intersect_2_bottom"> <code><strong>bottom </strong></code> </a></td> <td>
|
|
y maximum of constructed <a href="#Rect">Rect</a></td>
|
|
</tr>
|
|
</table>
|
|
|
|
### Return Value
|
|
|
|
true if construction and <a href="#Rect">Rect</a> have area in common
|
|
|
|
### Example
|
|
|
|
<div><fiddle-embed name="9f06dad5e6c712f7a2c149d075e816d2"><div>Two <a href="undocumented#SkDebugf">SkDebugf</a> calls are required. If the calls are combined, their arguments
|
|
may not be evaluated in left to right order: the printed intersection may
|
|
be before or after the call to intersect.</div>
|
|
|
|
#### Example Output
|
|
|
|
~~~~
|
|
intersection: 30, 60, 50, 80
|
|
~~~~
|
|
|
|
</fiddle-embed></div>
|
|
|
|
### See Also
|
|
|
|
<a href="#SkRect_intersects">intersects</a><sup><a href="#SkRect_intersects_2">[2]</a></sup> <a href="#SkRect_Intersects">Intersects</a> <a href="#SkRect_join">join</a><sup><a href="#SkRect_join_2">[2]</a></sup> <a href="SkIRect_Reference#SkIRect_intersect">SkIRect::intersect</a><sup><a href="SkIRect_Reference#SkIRect_intersect_2">[2]</a></sup><sup><a href="SkIRect_Reference#SkIRect_intersect_3">[3]</a></sup>
|
|
|
|
---
|
|
|
|
<a name="SkRect_intersect_3"></a>
|
|
|
|
<pre style="padding: 1em 1em 1em 1em;width: 62.5em; background-color: #f0f0f0">
|
|
bool SK_WARN_UNUSED_RESULT intersect(const SkRect& a, const SkRect& b)
|
|
</pre>
|
|
|
|
Returns true if <a href="#SkRect_intersect_3_a">a</a> intersects <a href="#SkRect_intersect_3_b">b</a>, and sets <a href="#Rect">Rect</a> to intersection.
|
|
Returns false if <a href="#SkRect_intersect_3_a">a</a> does not intersect <a href="#SkRect_intersect_3_b">b</a>, and leaves <a href="#Rect">Rect</a> unchanged.
|
|
|
|
Returns false if either <a href="#SkRect_intersect_3_a">a</a> or <a href="#SkRect_intersect_3_b">b</a> is empty, leaving <a href="#Rect">Rect</a> unchanged.
|
|
|
|
### Parameters
|
|
|
|
<table> <tr> <td><a name="SkRect_intersect_3_a"> <code><strong>a </strong></code> </a></td> <td>
|
|
<a href="#Rect">Rect</a> to intersect</td>
|
|
</tr> <tr> <td><a name="SkRect_intersect_3_b"> <code><strong>b </strong></code> </a></td> <td>
|
|
<a href="#Rect">Rect</a> to intersect</td>
|
|
</tr>
|
|
</table>
|
|
|
|
### Return Value
|
|
|
|
true if <a href="#SkRect_intersect_3_a">a</a> and <a href="#SkRect_intersect_3_b">b</a> have area in common
|
|
|
|
### Example
|
|
|
|
<div><fiddle-embed name="d610437a65dd3e952719efe605cbd0c7">
|
|
|
|
#### Example Output
|
|
|
|
~~~~
|
|
intersection: 30, 60, 50, 80
|
|
~~~~
|
|
|
|
</fiddle-embed></div>
|
|
|
|
### See Also
|
|
|
|
<a href="#SkRect_intersects">intersects</a><sup><a href="#SkRect_intersects_2">[2]</a></sup> <a href="#SkRect_Intersects">Intersects</a> <a href="#SkRect_join">join</a><sup><a href="#SkRect_join_2">[2]</a></sup> <a href="SkIRect_Reference#SkIRect_intersect">SkIRect::intersect</a><sup><a href="SkIRect_Reference#SkIRect_intersect_2">[2]</a></sup><sup><a href="SkIRect_Reference#SkIRect_intersect_3">[3]</a></sup>
|
|
|
|
---
|
|
|
|
<a name="SkRect_intersects"></a>
|
|
## intersects
|
|
|
|
<pre style="padding: 1em 1em 1em 1em;width: 62.5em; background-color: #f0f0f0">
|
|
bool intersects(SkScalar left, SkScalar top, SkScalar right, SkScalar bottom) const
|
|
</pre>
|
|
|
|
Constructs <a href="#Rect">Rect</a> to intersect from (left, top, right, bottom). Does not sort
|
|
construction.
|
|
|
|
Returns true if <a href="#Rect">Rect</a> intersects construction.
|
|
Returns false if either construction or <a href="#Rect">Rect</a> is empty, or do not intersect.
|
|
|
|
### Parameters
|
|
|
|
<table> <tr> <td><a name="SkRect_intersects_left"> <code><strong>left </strong></code> </a></td> <td>
|
|
x minimum of constructed <a href="#Rect">Rect</a></td>
|
|
</tr> <tr> <td><a name="SkRect_intersects_top"> <code><strong>top </strong></code> </a></td> <td>
|
|
y minimum of constructed <a href="#Rect">Rect</a></td>
|
|
</tr> <tr> <td><a name="SkRect_intersects_right"> <code><strong>right </strong></code> </a></td> <td>
|
|
x maximum of constructed <a href="#Rect">Rect</a></td>
|
|
</tr> <tr> <td><a name="SkRect_intersects_bottom"> <code><strong>bottom </strong></code> </a></td> <td>
|
|
y maximum of constructed <a href="#Rect">Rect</a></td>
|
|
</tr>
|
|
</table>
|
|
|
|
### Return Value
|
|
|
|
true if construction and <a href="#Rect">Rect</a> have area in common
|
|
|
|
### Example
|
|
|
|
<div><fiddle-embed name="7145dc17ebce4f54e892102f6c98e811">
|
|
|
|
#### Example Output
|
|
|
|
~~~~
|
|
intersection
|
|
~~~~
|
|
|
|
</fiddle-embed></div>
|
|
|
|
### See Also
|
|
|
|
<a href="#SkRect_intersect">intersect</a><sup><a href="#SkRect_intersect_2">[2]</a></sup><sup><a href="#SkRect_intersect_3">[3]</a></sup> <a href="#SkRect_Intersects">Intersects</a> <a href="SkIRect_Reference#SkIRect_Intersects">SkIRect::Intersects</a>
|
|
|
|
---
|
|
|
|
<a name="SkRect_intersects_2"></a>
|
|
|
|
<pre style="padding: 1em 1em 1em 1em;width: 62.5em; background-color: #f0f0f0">
|
|
bool intersects(const SkRect& r) const
|
|
</pre>
|
|
|
|
Returns true if <a href="#Rect">Rect</a> intersects <a href="#SkRect_intersects_2_r">r</a>.
|
|
Returns false if either <a href="#SkRect_intersects_2_r">r</a> or <a href="#Rect">Rect</a> is empty, or do not intersect.
|
|
|
|
### Parameters
|
|
|
|
<table> <tr> <td><a name="SkRect_intersects_2_r"> <code><strong>r </strong></code> </a></td> <td>
|
|
<a href="#Rect">Rect</a> to intersect</td>
|
|
</tr>
|
|
</table>
|
|
|
|
### Return Value
|
|
|
|
true if <a href="#SkRect_intersects_2_r">r</a> and <a href="#Rect">Rect</a> have area in common
|
|
|
|
### Example
|
|
|
|
<div><fiddle-embed name="ca37b4231b21eb8296cb19ba9e0c781b">
|
|
|
|
#### Example Output
|
|
|
|
~~~~
|
|
intersection
|
|
~~~~
|
|
|
|
</fiddle-embed></div>
|
|
|
|
### See Also
|
|
|
|
<a href="#SkRect_intersect">intersect</a><sup><a href="#SkRect_intersect_2">[2]</a></sup><sup><a href="#SkRect_intersect_3">[3]</a></sup> <a href="#SkRect_Intersects">Intersects</a> <a href="SkIRect_Reference#SkIRect_Intersects">SkIRect::Intersects</a>
|
|
|
|
---
|
|
|
|
<a name="SkRect_Intersects"></a>
|
|
## Intersects
|
|
|
|
<pre style="padding: 1em 1em 1em 1em;width: 62.5em; background-color: #f0f0f0">
|
|
static bool Intersects(const SkRect& a, const SkRect& b)
|
|
</pre>
|
|
|
|
Returns true if <a href="#SkRect_Intersects_a">a</a> intersects <a href="#SkRect_Intersects_b">b</a>.
|
|
Returns false if either <a href="#SkRect_Intersects_a">a</a> or <a href="#SkRect_Intersects_b">b</a> is empty, or do not intersect.
|
|
|
|
### Parameters
|
|
|
|
<table> <tr> <td><a name="SkRect_Intersects_a"> <code><strong>a </strong></code> </a></td> <td>
|
|
<a href="#Rect">Rect</a> to intersect</td>
|
|
</tr> <tr> <td><a name="SkRect_Intersects_b"> <code><strong>b </strong></code> </a></td> <td>
|
|
<a href="#Rect">Rect</a> to intersect</td>
|
|
</tr>
|
|
</table>
|
|
|
|
### Return Value
|
|
|
|
true if <a href="#SkRect_Intersects_a">a</a> and <a href="#SkRect_Intersects_b">b</a> have area in common
|
|
|
|
### Example
|
|
|
|
<div><fiddle-embed name="795061764b10c9e05efb466c9cb60644">
|
|
|
|
#### Example Output
|
|
|
|
~~~~
|
|
intersection
|
|
~~~~
|
|
|
|
</fiddle-embed></div>
|
|
|
|
### See Also
|
|
|
|
<a href="#SkRect_intersect">intersect</a><sup><a href="#SkRect_intersect_2">[2]</a></sup><sup><a href="#SkRect_intersect_3">[3]</a></sup> <a href="#SkRect_intersects">intersects</a><sup><a href="#SkRect_intersects_2">[2]</a></sup> <a href="SkIRect_Reference#SkIRect_Intersects">SkIRect::Intersects</a>
|
|
|
|
---
|
|
|
|
## <a name="Join"></a> Join
|
|
|
|
| name | description |
|
|
| --- | --- |
|
|
| <a href="#SkRect_join">join</a> | sets to union of bounds |
|
|
| | <a href="#SkRect_join">join(SkScalar left, SkScalar top, SkScalar right, SkScalar bottom)</a> |
|
|
| <a href="#SkRect_joinNonEmptyArg">joinNonEmptyArg</a> | sets to union of bounds, asserting that argument is not empty |
|
|
| <a href="#SkRect_joinPossiblyEmptyRect">joinPossiblyEmptyRect</a> | sets to union of bounds. Skips empty check for both |
|
|
|
|
<a name="SkRect_join"></a>
|
|
## join
|
|
|
|
<pre style="padding: 1em 1em 1em 1em;width: 62.5em; background-color: #f0f0f0">
|
|
void join(SkScalar left, SkScalar top, SkScalar right, SkScalar bottom)
|
|
</pre>
|
|
|
|
Constructs <a href="#Rect">Rect</a> to intersect from (left, top, right, bottom). Does not sort
|
|
construction.
|
|
|
|
Sets <a href="#Rect">Rect</a> to the union of itself and the construction.
|
|
|
|
Has no effect if construction is empty. Otherwise, if <a href="#Rect">Rect</a> is empty, sets
|
|
<a href="#Rect">Rect</a> to construction.
|
|
|
|
### Parameters
|
|
|
|
<table> <tr> <td><a name="SkRect_join_left"> <code><strong>left </strong></code> </a></td> <td>
|
|
x minimum of constructed <a href="#Rect">Rect</a></td>
|
|
</tr> <tr> <td><a name="SkRect_join_top"> <code><strong>top </strong></code> </a></td> <td>
|
|
y minimum of constructed <a href="#Rect">Rect</a></td>
|
|
</tr> <tr> <td><a name="SkRect_join_right"> <code><strong>right </strong></code> </a></td> <td>
|
|
x maximum of constructed <a href="#Rect">Rect</a></td>
|
|
</tr> <tr> <td><a name="SkRect_join_bottom"> <code><strong>bottom </strong></code> </a></td> <td>
|
|
y maximum of constructed <a href="#Rect">Rect</a></td>
|
|
</tr>
|
|
</table>
|
|
|
|
### Example
|
|
|
|
<div><fiddle-embed name="afa9c6b4d05bb669db07fe0b7b97e6aa">
|
|
|
|
#### Example Output
|
|
|
|
~~~~
|
|
join: 10, 20, 55, 65
|
|
~~~~
|
|
|
|
</fiddle-embed></div>
|
|
|
|
### See Also
|
|
|
|
<a href="#SkRect_joinNonEmptyArg">joinNonEmptyArg</a> <a href="#SkRect_joinPossiblyEmptyRect">joinPossiblyEmptyRect</a> <a href="SkIRect_Reference#SkIRect_join">SkIRect::join</a><sup><a href="SkIRect_Reference#SkIRect_join_2">[2]</a></sup>
|
|
|
|
---
|
|
|
|
<a name="SkRect_join_2"></a>
|
|
|
|
<pre style="padding: 1em 1em 1em 1em;width: 62.5em; background-color: #f0f0f0">
|
|
void join(const SkRect& r)
|
|
</pre>
|
|
|
|
Sets <a href="#Rect">Rect</a> to the union of itself and <a href="#SkRect_join_2_r">r</a>.
|
|
|
|
Has no effect if <a href="#SkRect_join_2_r">r</a> is empty. Otherwise, if <a href="#Rect">Rect</a> is empty, sets
|
|
<a href="#Rect">Rect</a> to <a href="#SkRect_join_2_r">r</a>.
|
|
|
|
### Parameters
|
|
|
|
<table> <tr> <td><a name="SkRect_join_2_r"> <code><strong>r </strong></code> </a></td> <td>
|
|
expansion <a href="#Rect">Rect</a></td>
|
|
</tr>
|
|
</table>
|
|
|
|
### Example
|
|
|
|
<div><fiddle-embed name="26500032494cf93c5fa3423110fe82af">
|
|
|
|
#### Example Output
|
|
|
|
~~~~
|
|
join: 10, 20, 55, 65
|
|
~~~~
|
|
|
|
</fiddle-embed></div>
|
|
|
|
### See Also
|
|
|
|
<a href="#SkRect_joinNonEmptyArg">joinNonEmptyArg</a> <a href="#SkRect_joinPossiblyEmptyRect">joinPossiblyEmptyRect</a> <a href="SkIRect_Reference#SkIRect_join">SkIRect::join</a><sup><a href="SkIRect_Reference#SkIRect_join_2">[2]</a></sup>
|
|
|
|
---
|
|
|
|
<a name="SkRect_joinNonEmptyArg"></a>
|
|
## joinNonEmptyArg
|
|
|
|
<pre style="padding: 1em 1em 1em 1em;width: 62.5em; background-color: #f0f0f0">
|
|
void joinNonEmptyArg(const SkRect& r)
|
|
</pre>
|
|
|
|
Sets <a href="#Rect">Rect</a> to the union of itself and <a href="#SkRect_joinNonEmptyArg_r">r</a>.
|
|
|
|
Asserts if <a href="#SkRect_joinNonEmptyArg_r">r</a> is empty and SK_DEBUG is defined.
|
|
If <a href="#Rect">Rect</a> is empty, sets <a href="#Rect">Rect</a> to <a href="#SkRect_joinNonEmptyArg_r">r</a>.
|
|
|
|
May produce incorrect results if <a href="#SkRect_joinNonEmptyArg_r">r</a> is empty.
|
|
|
|
### Parameters
|
|
|
|
<table> <tr> <td><a name="SkRect_joinNonEmptyArg_r"> <code><strong>r </strong></code> </a></td> <td>
|
|
expansion <a href="#Rect">Rect</a></td>
|
|
</tr>
|
|
</table>
|
|
|
|
### Example
|
|
|
|
<div><fiddle-embed name="88439de2aa0911262c60c0eb506396cb"><div>Since <a href="#Rect">Rect</a> is not sorted, first result is copy of toJoin.</div>
|
|
|
|
#### Example Output
|
|
|
|
~~~~
|
|
rect: 50, 60, 55, 65
|
|
sorted: 10, 0, 55, 100
|
|
~~~~
|
|
|
|
</fiddle-embed></div>
|
|
|
|
### See Also
|
|
|
|
<a href="#SkRect_join">join</a><sup><a href="#SkRect_join_2">[2]</a></sup> <a href="#SkRect_joinPossiblyEmptyRect">joinPossiblyEmptyRect</a> <a href="SkIRect_Reference#SkIRect_join">SkIRect::join</a><sup><a href="SkIRect_Reference#SkIRect_join_2">[2]</a></sup>
|
|
|
|
---
|
|
|
|
<a name="SkRect_joinPossiblyEmptyRect"></a>
|
|
## joinPossiblyEmptyRect
|
|
|
|
<pre style="padding: 1em 1em 1em 1em;width: 62.5em; background-color: #f0f0f0">
|
|
void joinPossiblyEmptyRect(const SkRect& r)
|
|
</pre>
|
|
|
|
Sets <a href="#Rect">Rect</a> to the union of itself and the construction.
|
|
|
|
May produce incorrect results if <a href="#Rect">Rect</a> or <a href="#SkRect_joinPossiblyEmptyRect_r">r</a> is empty.
|
|
|
|
### Parameters
|
|
|
|
<table> <tr> <td><a name="SkRect_joinPossiblyEmptyRect_r"> <code><strong>r </strong></code> </a></td> <td>
|
|
expansion <a href="#Rect">Rect</a></td>
|
|
</tr>
|
|
</table>
|
|
|
|
### Example
|
|
|
|
<div><fiddle-embed name="a476548d0001296afd8e58c1eba1b70b"><div>Since <a href="#Rect">Rect</a> is not sorted, first result is not useful.</div>
|
|
|
|
#### Example Output
|
|
|
|
~~~~
|
|
rect: 10, 60, 55, 65
|
|
sorted: 10, 0, 55, 100
|
|
~~~~
|
|
|
|
</fiddle-embed></div>
|
|
|
|
### See Also
|
|
|
|
<a href="#SkRect_joinNonEmptyArg">joinNonEmptyArg</a> <a href="#SkRect_join">join</a><sup><a href="#SkRect_join_2">[2]</a></sup> <a href="SkIRect_Reference#SkIRect_join">SkIRect::join</a><sup><a href="SkIRect_Reference#SkIRect_join_2">[2]</a></sup>
|
|
|
|
---
|
|
|
|
## <a name="Rounding"></a> Rounding
|
|
|
|
| name | description |
|
|
| --- | --- |
|
|
| <a href="#SkRect_round_2">round</a> | sets members to nearest integer value |
|
|
| | <a href="#SkRect_round">round(SkIRect* dst)</a> const |
|
|
| <a href="#SkRect_roundIn">roundIn</a> | sets members to nearest integer value towards opposite |
|
|
| <a href="#SkRect_roundOut">roundOut</a> | sets members to nearest integer value away from opposite |
|
|
| | <a href="#SkRect_roundOut">roundOut(SkIRect* dst)</a> const |
|
|
|
|
<a name="SkRect_round"></a>
|
|
## round
|
|
|
|
<pre style="padding: 1em 1em 1em 1em;width: 62.5em; background-color: #f0f0f0">
|
|
void round(SkIRect* dst) const
|
|
</pre>
|
|
|
|
Sets <a href="SkIRect_Reference#IRect">IRect</a> by adding 0.5 and discarding the fractional portion of <a href="#Rect">Rect</a>
|
|
members, using(.
|
|
|
|
### Parameters
|
|
|
|
<table> <tr> <td><a name="SkRect_round_dst"> <code><strong>dst </strong></code> </a></td> <td>
|
|
storage for <a href="SkIRect_Reference#IRect">IRect</a></td>
|
|
</tr>
|
|
</table>
|
|
|
|
### Example
|
|
|
|
<div><fiddle-embed name="8b9e5a9af0a9b878f76919534d88f41e">
|
|
|
|
#### Example Output
|
|
|
|
~~~~
|
|
round: 31, 51, 41, 61
|
|
~~~~
|
|
|
|
</fiddle-embed></div>
|
|
|
|
### See Also
|
|
|
|
<a href="#SkRect_roundIn">roundIn</a> <a href="#SkRect_roundOut">roundOut</a><sup><a href="#SkRect_roundOut_2">[2]</a></sup><sup><a href="#SkRect_roundOut_3">[3]</a></sup> <a href="undocumented#SkScalarRoundToInt">SkScalarRoundToInt</a>
|
|
|
|
---
|
|
|
|
<a name="SkRect_roundOut"></a>
|
|
## roundOut
|
|
|
|
<pre style="padding: 1em 1em 1em 1em;width: 62.5em; background-color: #f0f0f0">
|
|
void roundOut(SkIRect* dst) const
|
|
</pre>
|
|
|
|
Sets <a href="SkIRect_Reference#IRect">IRect</a> by discarding the fractional portion of <a href="#SkRect_fLeft">fLeft</a> and <a href="#SkRect_fTop">fTop</a>; and
|
|
rounding up <a href="#SkRect_fRight">fRight</a> and <a href="#SkRect_fBottom">fBottom</a>, using(.
|
|
|
|
### Parameters
|
|
|
|
<table> <tr> <td><a name="SkRect_roundOut_dst"> <code><strong>dst </strong></code> </a></td> <td>
|
|
storage for <a href="SkIRect_Reference#IRect">IRect</a></td>
|
|
</tr>
|
|
</table>
|
|
|
|
### Example
|
|
|
|
<div><fiddle-embed name="0bd13d7e6426ae7a3befa2ab151ac5fc">
|
|
|
|
#### Example Output
|
|
|
|
~~~~
|
|
round: 30, 50, 41, 61
|
|
~~~~
|
|
|
|
</fiddle-embed></div>
|
|
|
|
### See Also
|
|
|
|
<a href="#SkRect_roundIn">roundIn</a> <a href="#SkRect_round">round</a><sup><a href="#SkRect_round_2">[2]</a></sup> <a href="undocumented#SkScalarRoundToInt">SkScalarRoundToInt</a>
|
|
|
|
---
|
|
|
|
<a name="SkRect_roundOut_2"></a>
|
|
|
|
<pre style="padding: 1em 1em 1em 1em;width: 62.5em; background-color: #f0f0f0">
|
|
void roundOut(SkRect* dst) const
|
|
</pre>
|
|
|
|
Sets <a href="#Rect">Rect</a> by discarding the fractional portion of <a href="#SkRect_fLeft">fLeft</a> and <a href="#SkRect_fTop">fTop</a>; and
|
|
rounding up <a href="#SkRect_fRight">fRight</a> and <a href="#SkRect_fBottom">fBottom</a>, using(.
|
|
|
|
### Parameters
|
|
|
|
<table> <tr> <td><a name="SkRect_roundOut_2_dst"> <code><strong>dst </strong></code> </a></td> <td>
|
|
storage for <a href="#Rect">Rect</a></td>
|
|
</tr>
|
|
</table>
|
|
|
|
### Example
|
|
|
|
<div><fiddle-embed name="e09a6a12869a8ac21e9c2af98a5bb686">
|
|
|
|
#### Example Output
|
|
|
|
~~~~
|
|
round: 30, 50, 41, 61
|
|
~~~~
|
|
|
|
</fiddle-embed></div>
|
|
|
|
### See Also
|
|
|
|
<a href="#SkRect_roundIn">roundIn</a> <a href="#SkRect_round">round</a><sup><a href="#SkRect_round_2">[2]</a></sup> <a href="undocumented#SkScalarRoundToInt">SkScalarRoundToInt</a>
|
|
|
|
---
|
|
|
|
<a name="SkRect_roundIn"></a>
|
|
## roundIn
|
|
|
|
<pre style="padding: 1em 1em 1em 1em;width: 62.5em; background-color: #f0f0f0">
|
|
void roundIn(SkIRect* dst) const
|
|
</pre>
|
|
|
|
Sets <a href="#Rect">Rect</a> by rounding up <a href="#SkRect_fLeft">fLeft</a> and <a href="#SkRect_fTop">fTop</a>; and
|
|
discarding the fractional portion of <a href="#SkRect_fRight">fRight</a> and <a href="#SkRect_fBottom">fBottom</a>, using(.
|
|
|
|
### Parameters
|
|
|
|
<table> <tr> <td><a name="SkRect_roundIn_dst"> <code><strong>dst </strong></code> </a></td> <td>
|
|
storage for <a href="SkIRect_Reference#IRect">IRect</a></td>
|
|
</tr>
|
|
</table>
|
|
|
|
### Example
|
|
|
|
<div><fiddle-embed name="abb337da8fc1891f016c61258681c64c">
|
|
|
|
#### Example Output
|
|
|
|
~~~~
|
|
round: 31, 51, 40, 60
|
|
~~~~
|
|
|
|
</fiddle-embed></div>
|
|
|
|
### See Also
|
|
|
|
<a href="#SkRect_roundOut">roundOut</a><sup><a href="#SkRect_roundOut_2">[2]</a></sup><sup><a href="#SkRect_roundOut_3">[3]</a></sup> <a href="#SkRect_round">round</a><sup><a href="#SkRect_round_2">[2]</a></sup> <a href="undocumented#SkScalarRoundToInt">SkScalarRoundToInt</a>
|
|
|
|
---
|
|
|
|
<a name="SkRect_round_2"></a>
|
|
|
|
<pre style="padding: 1em 1em 1em 1em;width: 62.5em; background-color: #f0f0f0">
|
|
SkIRect round() const
|
|
</pre>
|
|
|
|
Returns <a href="SkIRect_Reference#IRect">IRect</a> by adding 0.5 and discarding the fractional portion of <a href="#Rect">Rect</a>
|
|
members, using(.
|
|
|
|
### Return Value
|
|
|
|
rounded <a href="SkIRect_Reference#IRect">IRect</a>
|
|
|
|
### Example
|
|
|
|
<div><fiddle-embed name="ef7ae1dd522c235b0afe41b55a624f46">
|
|
|
|
#### Example Output
|
|
|
|
~~~~
|
|
round: 31, 51, 41, 61
|
|
~~~~
|
|
|
|
</fiddle-embed></div>
|
|
|
|
### See Also
|
|
|
|
<a href="#SkRect_roundOut">roundOut</a><sup><a href="#SkRect_roundOut_2">[2]</a></sup><sup><a href="#SkRect_roundOut_3">[3]</a></sup> <a href="#SkRect_roundIn">roundIn</a> <a href="undocumented#SkScalarRoundToInt">SkScalarRoundToInt</a>
|
|
|
|
---
|
|
|
|
<a name="SkRect_roundOut_3"></a>
|
|
|
|
<pre style="padding: 1em 1em 1em 1em;width: 62.5em; background-color: #f0f0f0">
|
|
SkIRect roundOut() const
|
|
</pre>
|
|
|
|
Sets <a href="SkIRect_Reference#IRect">IRect</a> by discarding the fractional portion of <a href="#SkRect_fLeft">fLeft</a> and <a href="#SkRect_fTop">fTop</a>; and
|
|
rounding up <a href="#SkRect_fRight">fRight</a> and <a href="#SkRect_fBottom">fBottom</a>, using(.
|
|
|
|
### Return Value
|
|
|
|
rounded <a href="SkIRect_Reference#IRect">IRect</a>
|
|
|
|
### Example
|
|
|
|
<div><fiddle-embed name="05f0f65ae148f192656cd87df90f1d57">
|
|
|
|
#### Example Output
|
|
|
|
~~~~
|
|
round: 30, 50, 41, 61
|
|
~~~~
|
|
|
|
</fiddle-embed></div>
|
|
|
|
### See Also
|
|
|
|
<a href="#SkRect_round">round</a><sup><a href="#SkRect_round_2">[2]</a></sup> <a href="#SkRect_roundIn">roundIn</a> <a href="undocumented#SkScalarRoundToInt">SkScalarRoundToInt</a>
|
|
|
|
---
|
|
|
|
## <a name="Sorting"></a> Sorting
|
|
|
|
| name | description |
|
|
| --- | --- |
|
|
| <a href="#SkRect_sort">sort</a> | orders sides from smaller to larger |
|
|
|
|
<a name="SkRect_sort"></a>
|
|
## sort
|
|
|
|
<pre style="padding: 1em 1em 1em 1em;width: 62.5em; background-color: #f0f0f0">
|
|
void sort()
|
|
</pre>
|
|
|
|
Swaps <a href="#SkRect_fLeft">fLeft</a> and <a href="#SkRect_fRight">fRight</a> if <a href="#SkRect_fLeft">fLeft</a> is greater than <a href="#SkRect_fRight">fRight</a>; and swaps
|
|
<a href="#SkRect_fTop">fTop</a> and <a href="#SkRect_fBottom">fBottom</a> if <a href="#SkRect_fTop">fTop</a> is greater than <a href="#SkRect_fBottom">fBottom</a>. Result may be empty;
|
|
and <a href="#SkRect_width">width</a> and <a href="#SkRect_height">height</a> will be zero or positive.
|
|
|
|
### Example
|
|
|
|
<div><fiddle-embed name="e624fe398e3d770b573c09fc74c0c400">
|
|
|
|
#### Example Output
|
|
|
|
~~~~
|
|
rect: 30.5, 50.5, 20.5, 10.5
|
|
sorted: 20.5, 10.5, 30.5, 50.5
|
|
~~~~
|
|
|
|
</fiddle-embed></div>
|
|
|
|
### See Also
|
|
|
|
<a href="#SkRect_makeSorted">makeSorted</a> <a href="SkIRect_Reference#SkIRect_sort">SkIRect::sort</a> <a href="#SkRect_isSorted">isSorted</a>
|
|
|
|
---
|
|
|
|
<a name="SkRect_makeSorted"></a>
|
|
## makeSorted
|
|
|
|
<pre style="padding: 1em 1em 1em 1em;width: 62.5em; background-color: #f0f0f0">
|
|
SkRect makeSorted() const
|
|
</pre>
|
|
|
|
Returns <a href="#Rect">Rect</a> with <a href="#SkRect_fLeft">fLeft</a> and <a href="#SkRect_fRight">fRight</a> swapped if <a href="#SkRect_fLeft">fLeft</a> is greater than <a href="#SkRect_fRight">fRight</a>; and
|
|
with <a href="#SkRect_fTop">fTop</a> and <a href="#SkRect_fBottom">fBottom</a> swapped if <a href="#SkRect_fTop">fTop</a> is greater than <a href="#SkRect_fBottom">fBottom</a>. Result may be empty;
|
|
and <a href="#SkRect_width">width</a> and <a href="#SkRect_height">height</a> will be zero or positive.
|
|
|
|
### Return Value
|
|
|
|
sorted <a href="#Rect">Rect</a>
|
|
|
|
### Example
|
|
|
|
<div><fiddle-embed name="f59567042b87f6b26f9bfeeb04468032">
|
|
|
|
#### Example Output
|
|
|
|
~~~~
|
|
rect: 30.5, 50.5, 20.5, 10.5
|
|
sorted: 20.5, 10.5, 30.5, 50.5
|
|
~~~~
|
|
|
|
</fiddle-embed></div>
|
|
|
|
### See Also
|
|
|
|
<a href="#SkRect_sort">sort</a> <a href="SkIRect_Reference#SkIRect_makeSorted">SkIRect::makeSorted</a> <a href="#SkRect_isSorted">isSorted</a>
|
|
|
|
---
|
|
|
|
<a name="SkRect_asScalars"></a>
|
|
## asScalars
|
|
|
|
<pre style="padding: 1em 1em 1em 1em;width: 62.5em; background-color: #f0f0f0">
|
|
const SkScalar* asScalars() const
|
|
</pre>
|
|
|
|
Returns pointer to first <a href="undocumented#Scalar">Scalar</a> in <a href="#Rect">Rect</a>, to treat it as an array with four
|
|
entries.
|
|
|
|
### Return Value
|
|
|
|
pointer to <a href="#SkRect_fLeft">fLeft</a>
|
|
|
|
### Example
|
|
|
|
<div><fiddle-embed name="e1ea5f949d80276f3637931eae93a07c">
|
|
|
|
#### Example Output
|
|
|
|
~~~~
|
|
rect.asScalars() == &rect.fLeft
|
|
~~~~
|
|
|
|
</fiddle-embed></div>
|
|
|
|
### See Also
|
|
|
|
<a href="#SkRect_toQuad">toQuad</a>
|
|
|
|
---
|
|
|
|
<a name="SkRect_dump"></a>
|
|
## dump
|
|
|
|
<pre style="padding: 1em 1em 1em 1em;width: 62.5em; background-color: #f0f0f0">
|
|
void dump(bool asHex) const
|
|
</pre>
|
|
|
|
Writes text representation of <a href="#Rect">Rect</a> to standard output. <a href="#Set">Set</a> <a href="#SkRect_dump_asHex">asHex</a> to true to
|
|
generate exact binary representations of floating point numbers.
|
|
|
|
### Parameters
|
|
|
|
<table> <tr> <td><a name="SkRect_dump_asHex"> <code><strong>asHex </strong></code> </a></td> <td>
|
|
true if <a href="undocumented#SkScalar">SkScalar</a> values are written as hexadecimal</td>
|
|
</tr>
|
|
</table>
|
|
|
|
### Example
|
|
|
|
<div><fiddle-embed name="cea049ffff702a5923da41fe0ae0763b">
|
|
|
|
#### Example Output
|
|
|
|
~~~~
|
|
SkRect::MakeLTRB(20, 30, 40, 50);
|
|
SkRect::MakeLTRB(SkBits2Float(0x41a00000), /* 20.000000 */
|
|
SkBits2Float(0x41f00000), /* 30.000000 */
|
|
SkBits2Float(0x42200000), /* 40.000000 */
|
|
SkBits2Float(0x42480000) /* 50.000000 */);
|
|
~~~~
|
|
|
|
</fiddle-embed></div>
|
|
|
|
### See Also
|
|
|
|
<a href="#SkRect_dumpHex">dumpHex</a>
|
|
|
|
---
|
|
|
|
<a name="SkRect_dump_2"></a>
|
|
|
|
<pre style="padding: 1em 1em 1em 1em;width: 62.5em; background-color: #f0f0f0">
|
|
void dump() const
|
|
</pre>
|
|
|
|
Writes text representation of <a href="#Rect">Rect</a> to standard output. The representation may be
|
|
directly compiled as C++ code. Floating point values are written
|
|
with limited precision; it may not be possible to reconstruct original <a href="#Rect">Rect</a>
|
|
from output.
|
|
|
|
### Example
|
|
|
|
<div><fiddle-embed name="9fb76971b1a104a2a59816e0392267a7">
|
|
|
|
#### Example Output
|
|
|
|
~~~~
|
|
SkRect::MakeLTRB(0.857143f, 0.666667f, 2.6f, 7);
|
|
rect is not equal to copy
|
|
~~~~
|
|
|
|
</fiddle-embed></div>
|
|
|
|
### See Also
|
|
|
|
<a href="#SkRect_dumpHex">dumpHex</a>
|
|
|
|
---
|
|
|
|
<a name="SkRect_dumpHex"></a>
|
|
## dumpHex
|
|
|
|
<pre style="padding: 1em 1em 1em 1em;width: 62.5em; background-color: #f0f0f0">
|
|
void dumpHex() const
|
|
</pre>
|
|
|
|
Writes text representation of <a href="#Rect">Rect</a> to standard output. The representation may be
|
|
directly compiled as C++ code. Floating point values are written
|
|
in hexadecimal to preserve their exact bit pattern. The output reconstructs the
|
|
original <a href="#Rect">Rect</a>.
|
|
|
|
Use instead of <a href="#SkRect_dump_2">dump</a> when submitting <a href="http://bug.skia.org">bug reports against Skia</a> .
|
|
|
|
### Example
|
|
|
|
<div><fiddle-embed name="824b5a3fcfd46a7e1c5f9e3c16e6bb39">
|
|
|
|
#### Example Output
|
|
|
|
~~~~
|
|
SkRect::MakeLTRB(SkBits2Float(0x3f5b6db7), /* 0.857143 */
|
|
SkBits2Float(0x3f2aaaab), /* 0.666667 */
|
|
SkBits2Float(0x40266666), /* 2.600000 */
|
|
SkBits2Float(0x40e00000) /* 7.000000 */);
|
|
rect is equal to copy
|
|
~~~~
|
|
|
|
</fiddle-embed></div>
|
|
|
|
### See Also
|
|
|
|
<a href="#SkRect_dump">dump</a><sup><a href="#SkRect_dump_2">[2]</a></sup>
|
|
|
|
---
|
|
|
|
<a name="SkRect_MakeLargest"></a>
|
|
## MakeLargest
|
|
|
|
<pre style="padding: 1em 1em 1em 1em;width: 62.5em; background-color: #f0f0f0">
|
|
static SkRect SK_WARN_UNUSED_RESULT MakeLargest()
|
|
</pre>
|
|
|
|
---
|
|
|