Laxkit  0.0.7.1
Public Member Functions | Public Attributes
LaxInterfaces::ImagePatchData Class Reference

Cubic tensor product patch with an image as the color source. More...

Inheritance diagram for LaxInterfaces::ImagePatchData:
Inheritance graph
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List of all members.

Public Member Functions

 ImagePatchData (int iwidth, int iheight, unsigned long *ndata, int disl, double nscale, unsigned int stle)
 Create a patch with the provided color data, set in unit rectangle x:[0,1] and y:[0,1].
 ImagePatchData (const char *file=NULL)
 Plain constructor. Calls SetImage(file). Sets in unit rectangle x:[0,1] and y:[0,1].
virtual ~ImagePatchData ()
virtual const charwhattype ()
virtual SomeDataduplicate (SomeData *dup)
virtual void dump_out (FILE *f, int indent, int what, Laxkit::anObject *context)
virtual void dump_in_atts (LaxFiles::Attribute *att, int flag, Laxkit::anObject *context)
 Reverse of dump_out.
virtual unsigned long WhatColorLong (double s, double t)
 Return the color at (s,t) where (1,1) corresponds to (iwidth,iheight) in the image.
virtual int WhatColor (double s, double t, Laxkit::ScreenColor *color_ret)
 Return the color at (s,t) where (1,1) corresponds to (iwidth,iheight) in the image.
virtual int hasColorData ()
 Return whether idata has any info.
virtual void zap ()
 Make patch be rectangular with 1:1 pixel aspect in image.
virtual int SetImage (const char *fname)
 Return 0 for success.
- Public Member Functions inherited from LaxInterfaces::PatchData
 PatchData ()
 Creates a patch with points=NULL, size=0.
 PatchData (double xx, double yy, double ww, double hh, int nr, int nc, unsigned int stle)
 Creates a new patch in rect xx,yy,ww,hh with nr rows and nc columns.
virtual void FindBBox ()
 Find bbox.
virtual int pointin (flatpoint pp, int pin=1)
virtual flatpoint getControlPoint (int r, int c)
 Return points[r*xsize+c].
virtual flatpoint getPoint (double t, double s)
 Return the point corresponding to (s,t), where s and t are in range [0..1]. s for column, t for row.
virtual flatpointbezAtEdge (flatpoint *p, int i, int row)
 Return a bezier curve corresponding to the row (row==1) or column (row==0) i.
virtual flatpointbezCrossSection (flatpoint *p, int i, double t, int row)
 Return the cross section bezier curve at subpatch row (or column) i, and parameter t.
virtual int bezOfPatch (flatpoint *p, int r, int rl, int c, int cl)
 Return the bezier outline of a subsection of the patch.
virtual void resolveToSubpatch (double s, double t, int &c, double &ss, int &r, double &tt)
 From a point s,t (range 0..1), return the subpatch r,c plus offset into that subpatch.
virtual void resolveFromSubpatch (int c, double ss, int r, double tt, double &s, double &t)
 From subpatch (r,c) and offset, return a point s,t with range [0..1],[0..1].
virtual void getGt (double *G, int roffset, int coffset, int isfory)
 See subdivide() for what Gt is.
virtual int inSubPatch (flatpoint p, int *r_ret, int *c_ret, double *t_ret, double *s_ret, double d)
 Return which subpatch the point seems to be in.
virtual int coordsInSubPatch (flatpoint p, int r, int c, double maxd, double *s_ret, double *t_ret)
 Find an approximate (s,t) point to p.
virtual void Set (double xx, double yy, double ww, double hh, int nr, int nc, unsigned int stle)
 Set in rect xx,yy,ww,hh with nr rows and nc columns. Removes old info.
virtual void zap (flatpoint p, flatpoint x, flatpoint y)
 Remap to be in parallelogram of p,x,y.
virtual int subdivide (int r, double rt, int c, double ct)
 Subdivide a single row number r, position rt, and a single column c, position ct.
virtual int subdivide (int xn=2, int yn=2)
 Break each patch into subpatches.
virtual void grow (int where, double *tr)
 Grow the patch off an edge.
virtual void collapse (int rr, int cc)
 Merge (delete) rows, and/or columns.
virtual void InterpolateControls (int whichcontrols)
 Interpolate control points according to whichcontrols.
virtual int warpPatch (flatpoint center, double r1, double r2, double s, double e)
 Make data wrap inside a ring between radius 1 and 2, start angle s, end angle e.
virtual int renderToBuffer (unsigned char *buffer, int bufw, int bufh, int bufstride, int bufdepth, int bufchannels)
 Write to buffer assuming samples are 8 bit ARGB.
virtual void rpatchpoint (PatchRenderContext *context, flatpoint ul, flatpoint ur, flatpoint ll, flatpoint lr, double s1, double t1, double s2, double t2, int which)
 Recursive render. Used by renderToBuffer().
virtual void patchpoint (PatchRenderContext *context, double s0, double ds, double t0, double dt, int n)
 Called from renderToBuffer(). No recursion, just draw a bunch of rects for patch.
- Public Member Functions inherited from LaxInterfaces::SomeData
virtual void touchContents ()
virtual Laxkit::LaxImageGetPreview ()
 If usepreview==1 and preview, then return preview.
virtual void GeneratePreview (int w, int h)
 Create a preview image with transparency for a cached screen preview.
virtual const charId ()
virtual const charId (const char *newid)
 SomeData ()
 SomeData (double nminx, double nmaxx, double nminy, double nmaxy)
 Constructor, setting the bounds.
virtual flatpoint BBoxPoint (double x, double y, bool transform_to_parent)
virtual flatpoint ReferencePoint (int which, bool transform_to_parent)
virtual int fitto (double *boxm, DoubleBBox *box, double alignx, double aligny, int whentoscale=2)
 Fit this data to box.
virtual SomeDataGetParent ()
virtual void dump_in (FILE *f, int indent, Laxkit::anObject *context, LaxFiles::Attribute **Att=NULL)
 Dump in an attribute, then call dump_in_atts(thatatt,0).
virtual LaxFiles::Attributedump_out_atts (LaxFiles::Attribute *att, int what, Laxkit::anObject *savecontext)
- Public Member Functions inherited from Laxkit::anObject
 anObject ()
 Set object_id=getUniqueNumber().
virtual ~anObject ()
 Empty virtual destructor.
virtual anObjectduplicate (anObject *ref=NULL)
virtual int inc_count ()
 Increment the data's count by 1. Returns count.
virtual int dec_count ()
 Decrement the count of the data, deleting if count is less than or equal to 0.
virtual int the_count ()
- Public Member Functions inherited from Laxkit::Affine
 Affine (const double *m)
 If mm==NULL, set identity.
 Affine (const Affine &m)
 Affine (double xx, double xy, double yx, double yy, double tx, double ty)
Affineoperator= (Affine const &m)
Affineoperator*= (Affine const &m)
Affine operator* (Affine const m)
virtual void set (Affine a)
virtual void setIdentity ()
virtual bool isIdentity ()
virtual void setRotation (double angle)
virtual void setScale (double sx, double sy)
virtual void setBasis (flatpoint o, flatpoint x, flatpoint y)
virtual void setBasics (double x, double y, double sx, double sy, double angle, double shear)
virtual void getBasics (double *x, double *y, double *sx, double *sy, double *angle, double *shear)
virtual void Translate (flatvector d)
virtual void Rotate (double angle)
virtual void Rotate (double angle, flatpoint around_point)
virtual void RotatePointed (flatpoint anchor1, flatpoint anchor2, flatpoint newanchor2)
virtual void RotateScale (flatpoint anchor1, flatpoint anchor2, flatpoint newanchor2)
 Rotate and scale so that anchor1 stays fixed, but anchor2 is shifted to newanchor2.
virtual void Stretch (flatpoint anchor1, flatpoint anchor2, flatpoint newanchor2)
virtual void AnchorShear (flatpoint anchor1, flatpoint anchor2, flatpoint anchor3, flatpoint newanchor3)
 Transform so that anchor1 and 2 stay fixed, but anchor3 is shifted to newanchor3.
virtual void Scale (double s)
virtual void Scale (flatpoint o, double s)
 Scale around point o.
virtual void Scale (flatpoint o, double sx, double sy)
virtual void Scale (flatpoint anchor1, flatpoint anchor2, flatpoint newanchor2)
 Scale as if you move anchor2 to newanchor2, while anchor1 stays the same.
virtual void FlipH ()
virtual void FlipV ()
virtual void Flip (flatpoint f1, flatpoint f2)
 Flip across the axis of f1 to f2.
virtual void Multiply (Affine &m)
 this=this*m
virtual void PreMultiply (Affine &m)
 this=m*this
virtual Affine Inversion ()
 Return a new matrix that is the inverse of this, if possible.
virtual void Invert ()
 Make this the inverse of whatever it is.
virtual flatpoint transformPoint (flatpoint p)
virtual flatpoint transformPointInverse (flatpoint p)
virtual flatpoint transformVector (flatpoint p)
 Apply the transfrom, but ignore this's translation component.
virtual const double * m () const
virtual void m (const double *mm)
virtual void m (double xx, double xy, double yx, double yy, double tx, double ty)
virtual double m (int c)
virtual void m (int c, double v)
virtual void Unshear (int preserve_x, int normalize)
 Clear shearing and unequal scaling. Null vectors stay null vectors.
virtual void Normalize ()
 Make x and y both be unit vectors, but point in the same direction as before.
virtual flatpoint origin ()
virtual void origin (flatpoint o)
virtual flatpoint xaxis ()
virtual void xaxis (flatpoint x)
virtual flatpoint yaxis ()
virtual void yaxis (flatpoint y)
- Public Member Functions inherited from Laxkit::DoubleBBox
 DoubleBBox ()
 Create empty invalid bbox (maxx<minx and maxy<miny).
 DoubleBBox (flatpoint p)
 Create box whose bounds are p.
 DoubleBBox (double mix, double max, double miy, double may)
 Create box whose bounds are as given.
virtual void clear ()
 Make box invalid: set minx=miny=0 and maxx=maxy=-1.
virtual void addtobounds (double x, double y)
virtual void addtobounds (flatpoint p)
 Expand bounds to contain p. Set the bounds to p if current bounds are invalid.
virtual void addtobounds (DoubleBBox *bbox)
 Add the bbox to the bounds. Set the bounds if current bounds are invalid.
virtual void addtobounds (const double *m, DoubleBBox *bbox)
 Add bbox to bounds, first transforming it by 6 element transform matrix m.
virtual void setbounds (DoubleBBox *bbox)
 Just copy over the bounds.
virtual void setbounds (flatpoint *pts, int n)
 Make this bbox be the bounds for the given n points. (does not add to previous bounds)
virtual void setbounds (double mix, double max, double miy, double may)
 Set the bounds to the specified values.
virtual int validbounds ()
 Returns maxx>=minx && maxy>=miny.
virtual int intersect (double mix, double max, double miy, double may, int settointersection=0)
 Intersect the given bounds with this's bounds. Return 1 for non-empty intersection.
virtual int intersect (DoubleBBox *bbox, int settointersection=0)
 Just return intersect(bbox.minx,...,settointersection).
virtual int intersect (double *m, DoubleBBox *bbox, int touching, int settointersection)
 Does the transformed box touch. **** incomplete implementation.
virtual int boxcontains (double x, double y)
 Return whether the given point is contained within or on the bounds.
virtual flatpoint BBoxPoint (double x, double y)

Public Attributes

charfilename
 The file (if any) that idata corresponds to.
unsigned long * idata
 The color data in ARGB format for sampling from.
double im [6]
 Offset of the image within color space.
int idataislocal
 Whether idata should be delete[]'d in the destructor.
int iwidth
 The width of the image color data.
int iheight
 The width of the image color data.
- Public Attributes inherited from LaxInterfaces::PatchData
int renderdepth
 How and how much to render in renderToBuffer.
int griddivisions
flatpointpoints
int xsize
int ysize
unsigned int style
PatchControls controls
LineStyle linestyle
- Public Attributes inherited from LaxInterfaces::SomeData
Laxkit::LaxImagepreview
 A preview image potentially to be used to not have to rerender on each refresh.
int usepreview
 Flag for whether to use SomeData::preview rather than rendering.
std::time_t previewtime
 The time the preview was generated, if at all, as returned by time().
std::time_t modtime
 The time of last modification through a SomeData function.
int bboxstyle
flatpoint centerpoint
unsigned int flags
int iid
 Id of the interface that should handle this data.
charnameid
- Public Attributes inherited from Laxkit::anObject
int suppress_debug
DeleteRefCountedFunc deleteMe
 Called when the count is decremented to 0.
unsigned long object_id
charobject_idstr
- Public Attributes inherited from Laxkit::DoubleBBox
double minx
double maxx
double miny
double maxy

Detailed Description

Cubic tensor product patch with an image as the color source.

See ImagePatchInterface.

Todo:
*** should have option to offset the color data within the patch!!!

Constructor & Destructor Documentation

LaxInterfaces::ImagePatchData::~ImagePatchData ( )
virtual

delete[]'s idata if idataislocal==1 || idataislocal==2.

References filename, idata, and idataislocal.


Member Function Documentation

int LaxInterfaces::ImagePatchData::SetImage ( const char fname)
virtual

Return 0 for success.

*** on error, the old stuff is kept.

This makes idata hold 8bit ARGB samples, not necessarily ready for display on the screen. Note that this is the same as is returned in Imlib's imlib_image_get_data_for_reading_only().

References dump_out(), filename, idata, idataislocal, iheight, iwidth, and makestr().

Referenced by dump_in_atts(), and ImagePatchData().

int LaxInterfaces::ImagePatchData::WhatColor ( double  s,
double  t,
Laxkit::ScreenColor color_ret 
)
virtual

Return the color at (s,t) where (1,1) corresponds to (iwidth,iheight) in the image.

This returns an element from idata, which is ARGB.

Reimplemented from LaxInterfaces::PatchData.

References idata, iheight, and iwidth.

Referenced by LaxInterfaces::ImagePatchInterface::patchpoint().

unsigned long LaxInterfaces::ImagePatchData::WhatColorLong ( double  s,
double  t 
)
virtual

Return the color at (s,t) where (1,1) corresponds to (iwidth,iheight) in the image.

This returns an unsigned long element from idata, which is ARGB.

References idata, iheight, and iwidth.


Member Data Documentation

double LaxInterfaces::ImagePatchData::im[6]

Offset of the image within color space.

Normally, images will fill the entire patch, with (s,t)=(1,1) corresponding to point (width,height) in the image. im is a transform to apply to the image data before retrieving the color.

This allows easily offseting patched data without creating a whole new image. Please note that this may make some areas of the image invisible, as they are outside the range of the patch.

Todo:
*** implement me!!! also implement auto expand patch to include areas off the edges

Referenced by ImagePatchData().


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

Mon Feb 17 2014 11:52:58, Laxkit