Panda3D
Public Types | Public Member Functions | Static Public Member Functions | Public Attributes | Protected Member Functions | Protected Attributes

PNMLightenImageBrush Class Reference

Inheritance diagram for PNMLightenImageBrush:
PNMImageBrush PNMBrush ReferenceCount MemoryBase

List of all members.

Public Types

enum  BrushEffect { BE_set, BE_blend, BE_darken, BE_lighten }

Public Member Functions

 PNMLightenImageBrush (const PNMImage &image, double xc, double yc)
virtual void do_scanline (PNMImage &image, int xto, int yto, int xfrom, int yfrom, int x_size, int y_size)
virtual void draw (PNMImage &image, int x, int y, double pixel_scale)
int get_ref_count () const
 Returns the current reference count.
WeakReferenceListget_weak_list () const
 Returns the WeakReferenceList associated with this ReferenceCount object.
double get_xc () const
 Returns the coordinates of the brush's center pixel.
double get_yc () const
 Returns the coordinates of the brush's center pixel.
bool has_weak_list () const
 Returns true if this particular ReferenceCount object has a WeakReferenceList created, false otherwise.
void local_object ()
 This function should be called, once, immediately after creating a new instance of some ReferenceCount-derived object on the stack.
void operator delete (void *ptr)
void operator delete (void *ptr, void *)
void operator delete[] (void *ptr)
void operator delete[] (void *, void *)
void * operator new (size_t size)
void * operator new (size_t size, void *ptr)
void * operator new[] (size_t size)
void * operator new[] (size_t size, void *ptr)
void ref () const
 Explicitly increments the reference count.
bool test_ref_count_integrity () const
 Does some easy checks to make sure that the reference count isn't completely bogus.
bool test_ref_count_nonzero () const
 Does some easy checks to make sure that the reference count isn't zero, or completely bogus.
virtual bool unref () const
 Explicitly decrements the reference count.
void weak_ref (WeakPointerToVoid *ptv)
 Adds the indicated PointerToVoid as a weak reference to this object.
void weak_unref (WeakPointerToVoid *ptv)
 Removes the indicated PointerToVoid as a weak reference to this object.

Static Public Member Functions

static TypeHandle get_class_type ()
static void init_type ()
static PT (PNMBrush) make_pixel(const Colord &color
static PT (PNMBrush) make_image(const PNMImage &image
static PT (PNMBrush) make_spot(const Colord &color
static PT (PNMBrush) make_transparent()

Public Attributes

static BrushEffect effect = BE_blend)
static double bool BrushEffect effect = BE_blend)
static double double BrushEffect effect = BE_blend)
static double bool fuzzy
static double radius
static double xc
static double double yc

Protected Member Functions

bool do_test_ref_count_integrity () const
 Does some easy checks to make sure that the reference count isn't completely bogus.
bool do_test_ref_count_nonzero () const
 Returns true if the reference count is nonzero, false otherwise.
virtual void fill (PNMImage &image, int xfrom, int xto, int y, int xo, int yo)

Protected Attributes

PNMImage _image
double _xc
double _yc

Detailed Description

Definition at line 276 of file pnmBrush.cxx.


Member Function Documentation

bool ReferenceCount::do_test_ref_count_integrity ( ) const [protected, inherited]

Does some easy checks to make sure that the reference count isn't completely bogus.

Returns true if ok, false otherwise.

Reimplemented in NodeReferenceCount, CachedTypedWritableReferenceCount, and NodeCachedReferenceCount.

Definition at line 29 of file referenceCount.cxx.

Referenced by ReferenceCount::do_test_ref_count_nonzero(), and ReferenceCount::test_ref_count_integrity().

bool ReferenceCount::do_test_ref_count_nonzero ( ) const [protected, inherited]

Returns true if the reference count is nonzero, false otherwise.

Definition at line 56 of file referenceCount.cxx.

References ReferenceCount::do_test_ref_count_integrity().

Referenced by ReferenceCount::test_ref_count_nonzero().

int ReferenceCount::get_ref_count ( ) const [inline, inherited]
WeakReferenceList * ReferenceCount::get_weak_list ( ) const [inline, inherited]

Returns the WeakReferenceList associated with this ReferenceCount object.

If there has never been a WeakReferenceList associated with this object, creates one now.

Definition at line 307 of file referenceCount.I.

Referenced by ReferenceCount::weak_ref().

double PNMBrush::get_xc ( ) const [inline, inherited]

Returns the coordinates of the brush's center pixel.

For a one-pixel brush, this will be (0.5, 0.5); for a centered two-pixel brush, this will be (1.0, 1.0); for a centered three-pixel brush, this will be (1.5, 1.5); and so on.

Definition at line 35 of file pnmBrush.I.

double PNMBrush::get_yc ( ) const [inline, inherited]

Returns the coordinates of the brush's center pixel.

For a one-pixel brush, this will be (0.5, 0.5); for a centered two-pixel brush, this will be (1.0, 1.0); for a centered three-pixel brush, this will be (1.5, 1.5); and so on.

Definition at line 49 of file pnmBrush.I.

bool ReferenceCount::has_weak_list ( ) const [inline, inherited]

Returns true if this particular ReferenceCount object has a WeakReferenceList created, false otherwise.

In general, this will be true if there was ever a WeakPointerTo created for this object (even if there is not any for it now).

Definition at line 294 of file referenceCount.I.

Referenced by ReferenceCount::weak_unref().

void ReferenceCount::local_object ( ) [inline, inherited]

This function should be called, once, immediately after creating a new instance of some ReferenceCount-derived object on the stack.

This allows the object to be passed to functions that will increment and decrement the object's reference count temporarily, and it will prevent the object from being deleted (inappropriately), when the reference count returns to zero. It actually achieves this by setting a large positive value in the reference count field.

Definition at line 276 of file referenceCount.I.

Referenced by PGTop::cull_callback(), BoundingSphere::extend_by_hexahedron(), AsyncTaskManager::find_task(), AsyncTaskManager::find_tasks(), and AsyncTaskManager::find_tasks_matching().

void ReferenceCount::ref ( ) const [inline, inherited]

Explicitly increments the reference count.

User code should avoid using ref() and unref() directly, which can result in missed reference counts. Instead, let a PointerTo object manage the reference counting automatically.

This function is const, even though it changes the object, because generally fiddling with an object's reference count isn't considered part of fiddling with the object. An object might be const in other ways, but we still need to accurately count the number of references to it.

Definition at line 179 of file referenceCount.I.

References ReferenceCount::test_ref_count_integrity().

Referenced by CachedTypedWritableReferenceCount::cache_ref(), TypedWritable::decode_raw_from_bam_stream(), NodeCachedReferenceCount::node_ref(), NodeReferenceCount::node_ref(), BamCacheRecord::set_data(), CullableObject::set_draw_callback(), and ModelRoot::set_reference().

bool ReferenceCount::test_ref_count_integrity ( ) const [inline, inherited]
bool ReferenceCount::test_ref_count_nonzero ( ) const [inline, inherited]

Does some easy checks to make sure that the reference count isn't zero, or completely bogus.

Returns true if ok, false otherwise.

Definition at line 252 of file referenceCount.I.

References ReferenceCount::do_test_ref_count_nonzero().

Referenced by CopyOnWritePointer::test_ref_count_nonzero().

bool ReferenceCount::unref ( ) const [inline, virtual, inherited]

Explicitly decrements the reference count.

Note that the object will not be implicitly deleted by unref() simply because the reference count drops to zero. (Having a member function delete itself is problematic.) However, see the helper function unref_delete().

User code should avoid using ref() and unref() directly, which can result in missed reference counts. Instead, let a PointerTo object manage the reference counting automatically.

This function is const, even though it changes the object, because generally fiddling with an object's reference count isn't considered part of fiddling with the object. An object might be const in other ways, but we still need to accurately count the number of references to it.

The return value is true if the new reference count is nonzero, false if it is zero.

Reimplemented in GeomVertexArrayFormat, GeomVertexFormat, InternalName, RenderAttrib, RenderEffects, RenderState, and TransformState.

Definition at line 214 of file referenceCount.I.

References ReferenceCount::test_ref_count_integrity().

Referenced by CachedTypedWritableReferenceCount::cache_unref(), TypedWritable::decode_raw_from_bam_stream(), RenderEffect::finalize(), NodeCachedReferenceCount::node_unref(), NodeReferenceCount::node_unref(), TransformState::unref(), RenderState::unref(), RenderEffects::unref(), RenderAttrib::unref(), InternalName::unref(), GeomVertexFormat::unref(), and GeomVertexArrayFormat::unref().

void ReferenceCount::weak_ref ( WeakPointerToVoid ptv) [inline, inherited]

Adds the indicated PointerToVoid as a weak reference to this object.

Definition at line 321 of file referenceCount.I.

References WeakReferenceList::add_reference(), and ReferenceCount::get_weak_list().

void ReferenceCount::weak_unref ( WeakPointerToVoid ptv) [inline, inherited]

Removes the indicated PointerToVoid as a weak reference to this object.

It must have previously been added via a call to weak_ref().

Definition at line 334 of file referenceCount.I.

References WeakReferenceList::clear_reference(), and ReferenceCount::has_weak_list().


The documentation for this class was generated from the following file:
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