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Public Member Functions | ||||
bool | empty () | |||
Finds out if the Gdk::Region is empty. | ||||
void | get_clipbox (const Rectangle& rectangle) | |||
Obtains the smallest rectangle which includes the entire Gdk::Region. | ||||
Glib::ArrayHandle<Rectangle> | get_rectangles () const | |||
const GdkRegion* | gobj () const | |||
GdkRegion* | gobj () | |||
GdkRegion* | gobj_copy () const | |||
Provides access to the underlying C instance. The caller is responsible for freeing it. Use when directly setting fields in structs. | ||||
void | intersect (const Region& source2) | |||
Sets the area of source1 to the intersection of the areas of source1 and source2 . | ||||
void | offset (int dx, int dy) | |||
Moves a region the specified distance. | ||||
Region& | operator= (const Region& src) | |||
bool | point_in (int x, int y) | |||
Finds out if a point is in a region. | ||||
OverlapType | rect_in (const Rectangle& rect) | |||
Tests whether a rectangle is within a region. | ||||
Region (const Rectangle& rectangle) | ||||
Region (const Glib::ArrayHandle<Gdk::Point>& points, FillRule fill_rule) | ||||
Region (const Region& src) | ||||
Region (GdkRegion* castitem, bool make_a_copy=false) | ||||
Region () | ||||
void | shrink (int dx, int dy) | |||
Resizes a region by the specified amount. | ||||
void | spans_intersect_foreach (GdkSpan* spans, int n_spans, bool sorted, GdkSpanFunc function, gpointer data) | |||
Calls a function on each span in the intersection of region and spans . | ||||
void | subtract (const Region& source2) | |||
Subtracts the area of source2 from the area source1 . | ||||
void | union_ (const Region& source2) | |||
Sets the area of source1 to the union of the areas of source1 and source2 . | ||||
void | union_with_rect (const Rectangle& rect) | |||
Sets the area of region to the union of the areas of region and rect . | ||||
void | xor_ (const Region& source2) | |||
Sets the area of source1 to the exclusive-OR of the areas of source1 and source2 . | ||||
~Region () | ||||
Protected Attributes | ||||
GdkRegion* | gobject_ | |||
Related Functions | ||||
(Note that these are not member functions.) | ||||
bool | operator!= (const Region& lhs, const Region& rhs) | |||
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bool | operator== (const Region& lhs, const Region& rhs) | |||
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Gdk::Region | wrap (GdkRegion* object, bool take_copy=false) | |||
A Glib::wrap() method for this object. |
Gdk::Region::Region | ( | ) |
Gdk::Region::Region | ( | GdkRegion* | castitem, | |
bool | make_a_copy = false | |||
) | [explicit] |
Gdk::Region::Region | ( | const Region& | src | ) |
Gdk::Region::~Region | ( | ) |
Gdk::Region::Region | ( | const Glib::ArrayHandle<Gdk::Point>& | points, | |
FillRule | fill_rule | |||
) |
Gdk::Region::Region | ( | const Rectangle& | rectangle | ) | [explicit] |
bool Gdk::Region::empty | ( | ) |
void Gdk::Region::get_clipbox | ( | const Rectangle& | rectangle | ) |
Obtains the smallest rectangle which includes the entire Gdk::Region.
rectangle | Return location for the clipbox. |
Glib::ArrayHandle<Rectangle> Gdk::Region::get_rectangles | ( | ) | const |
const GdkRegion* Gdk::Region::gobj | ( | ) | const [inline] |
GdkRegion* Gdk::Region::gobj | ( | ) | [inline] |
GdkRegion* Gdk::Region::gobj_copy | ( | ) | const |
Provides access to the underlying C instance. The caller is responsible for freeing it. Use when directly setting fields in structs.
void Gdk::Region::intersect | ( | const Region& | source2 | ) |
Sets the area of source1 to the intersection of the areas of source1 and source2 .
The resulting area is the set of pixels contained in both source1 and source2 .
source2 | Another Gdk::Region. |
void Gdk::Region::offset | ( | int | dx, | |
int | dy | |||
) |
Moves a region the specified distance.
dx | The distance to move the region horizontally. | |
dy | The distance to move the region vertically. |
bool Gdk::Region::point_in | ( | int | x, | |
int | y | |||
) |
Finds out if a point is in a region.
x | The x coordinate of a point. | |
y | The y coordinate of a point. |
true
if the point is in region . OverlapType Gdk::Region::rect_in | ( | const Rectangle& | rect | ) |
Tests whether a rectangle is within a region.
rectangle | A Gdk::Rectangle. |
void Gdk::Region::shrink | ( | int | dx, | |
int | dy | |||
) |
Resizes a region by the specified amount.
Positive values shrink the region. Negative values expand it.
dx | The number of pixels to shrink the region horizontally. | |
dy | The number of pixels to shrink the region vertically. |
void Gdk::Region::spans_intersect_foreach | ( | GdkSpan * | spans, | |
int | n_spans, | |||
bool | sorted, | |||
GdkSpanFunc | function, | |||
gpointer | data | |||
) |
Calls a function on each span in the intersection of region and spans .
spans | An array of Gdk::Spans. | |
n_spans | The length of spans . | |
sorted | true if spans is sorted wrt. the y coordinate. | |
function | Function to call on each span in the intersection. | |
data | Data to pass to function . |
void Gdk::Region::subtract | ( | const Region& | source2 | ) |
Subtracts the area of source2 from the area source1 .
The resulting area is the set of pixels contained in source1 but not in source2 .
source2 | Another Gdk::Region. |
void Gdk::Region::union_ | ( | const Region& | source2 | ) |
Sets the area of source1 to the union of the areas of source1 and source2 .
The resulting area is the set of pixels contained in either source1 or source2 .
source2 | A Gdk::Region. |
void Gdk::Region::union_with_rect | ( | const Rectangle& | rect | ) |
Sets the area of region to the union of the areas of region and rect .
The resulting area is the set of pixels contained in either region or rect .
rect | A Gdk::Rectangle. |
void Gdk::Region::xor_ | ( | const Region& | source2 | ) |
Sets the area of source1 to the exclusive-OR of the areas of source1 and source2 .
The resulting area is the set of pixels contained in one or the other of the two sources but not in both.
source2 | Another Gdk::Region. |
lhs | The left-hand side |
rhs | The right-hand side |
lhs | The left-hand side |
rhs | The right-hand side |
Gdk::Region wrap | ( | GdkRegion* | object, | |
bool | take_copy = false | |||
) | [related] |
A Glib::wrap() method for this object.
object | The C instance. | |
take_copy | False if the result should take ownership of the C instance. True if it should take a new copy or ref. |
GdkRegion* Gdk::Region::gobject_ [protected] |