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// SPDX-License-Identifier: GPL-2.0-or-later
/** @file
* TODO: insert short description here
*//*
* Authors: see git history
*
* Copyright (C) 2018 Authors
* Released under GNU GPL v2+, read the file 'COPYING' for more information.
*/
#include <glibmm.h>
#include "attributes.h"
#include "display/cairo-utils.h"
#include "display/drawing-paintserver.h"
#include "sp-mesh-gradient.h"
/*
* Mesh Gradient
*/
//#define MESH_DEBUG
//#define OBJECT_TRACE
SPMeshGradient::SPMeshGradient() : SPGradient(), type( SP_MESH_TYPE_COONS ), type_set(false) {
#ifdef OBJECT_TRACE
objectTrace( "SPMeshGradient::SPMeshGradient" );
#endif
// Start coordinate of mesh
this->x.unset(SVGLength::NONE, 0.0, 0.0);
this->y.unset(SVGLength::NONE, 0.0, 0.0);
#ifdef OBJECT_TRACE
objectTrace( "SPMeshGradient::SPMeshGradient", false );
#endif
}
SPMeshGradient::~SPMeshGradient() {
#ifdef OBJECT_TRACE
objectTrace( "SPMeshGradient::~SPMeshGradient (empty function)" );
objectTrace( "SPMeshGradient::~SPMeshGradient", false );
#endif
}
void SPMeshGradient::build(SPDocument *document, Inkscape::XML::Node *repr) {
#ifdef OBJECT_TRACE
objectTrace( "SPMeshGradient::build" );
#endif
SPGradient::build(document, repr);
// Start coordinate of meshgradient
this->readAttr(SPAttr::X);
this->readAttr(SPAttr::Y);
this->readAttr(SPAttr::TYPE);
#ifdef OBJECT_TRACE
objectTrace( "SPMeshGradient::build", false );
#endif
}
void SPMeshGradient::set(SPAttr key, gchar const *value) {
#ifdef OBJECT_TRACE
objectTrace( "SPMeshGradient::set" );
#endif
switch (key) {
case SPAttr::X:
if (!this->x.read(value)) {
this->x.unset(SVGLength::NONE, 0.0, 0.0);
}
this->requestModified(SP_OBJECT_MODIFIED_FLAG);
break;
case SPAttr::Y:
if (!this->y.read(value)) {
this->y.unset(SVGLength::NONE, 0.0, 0.0);
}
this->requestModified(SP_OBJECT_MODIFIED_FLAG);
break;
case SPAttr::TYPE:
if (value) {
if (!strcmp(value, "coons")) {
this->type = SP_MESH_TYPE_COONS;
} else if (!strcmp(value, "bicubic")) {
this->type = SP_MESH_TYPE_BICUBIC;
} else {
std::cerr << "SPMeshGradient::set(): invalid value " << value << std::endl;
}
this->type_set = TRUE;
} else {
// std::cout << "SPMeshGradient::set() No value " << std::endl;
this->type = SP_MESH_TYPE_COONS;
this->type_set = FALSE;
}
this->requestModified(SP_OBJECT_MODIFIED_FLAG);
break;
default:
SPGradient::set(key, value);
break;
}
#ifdef OBJECT_TRACE
objectTrace( "SPMeshGradient::set", false );
#endif
}
/**
* Write mesh gradient attributes to associated repr.
*/
Inkscape::XML::Node* SPMeshGradient::write(Inkscape::XML::Document *xml_doc, Inkscape::XML::Node *repr, guint flags) {
#ifdef OBJECT_TRACE
objectTrace( "SPMeshGradient::write", false );
#endif
if ((flags & SP_OBJECT_WRITE_BUILD) && !repr) {
repr = xml_doc->createElement("svg:meshgradient");
}
if ((flags & SP_OBJECT_WRITE_ALL) || this->x._set) {
repr->setAttributeSvgDouble("x", this->x.computed);
}
if ((flags & SP_OBJECT_WRITE_ALL) || this->y._set) {
repr->setAttributeSvgDouble("y", this->y.computed);
}
if ((flags & SP_OBJECT_WRITE_ALL) || this->type_set) {
switch (this->type) {
case SP_MESH_TYPE_COONS:
repr->setAttribute("type", "coons");
break;
case SP_MESH_TYPE_BICUBIC:
repr->setAttribute("type", "bicubic");
break;
default:
// Do nothing
break;
}
}
SPGradient::write(xml_doc, repr, flags);
#ifdef OBJECT_TRACE
objectTrace( "SPMeshGradient::write", false );
#endif
return repr;
}
std::unique_ptr<Inkscape::DrawingPaintServer> SPMeshGradient::create_drawing_paintserver()
{
ensureArray();
SPMeshNodeArray* my_array = &array;
if (type_set) {
switch (type) {
case SP_MESH_TYPE_COONS:
// std::cout << "SPMeshGradient::pattern_new: Coons" << std::endl;
break;
case SP_MESH_TYPE_BICUBIC:
array.bicubic(&array_smoothed, type);
my_array = &array_smoothed;
break;
}
}
int rows = my_array->patch_rows();
int cols = my_array->patch_columns();
std::vector<std::vector<Inkscape::DrawingMeshGradient::PatchData>> patchdata;
patchdata.resize(rows);
for (auto &row : patchdata) {
row.resize(cols);
}
for (int i = 0; i < rows; i++) {
for (int j = 0; j < cols; j++) {
auto patch = SPMeshPatchI(&my_array->nodes, i, j);
auto &data = patchdata[i][j];
for (int x = 0; x < 4; x++) {
for (int y = 0; y < 4; y++) {
data.points[x][y] = patch.getPoint(x, y);
}
}
for (int k = 0; k < 4; k++) {
#ifdef DEBUG_MESH
std::cout << i << " " << j << " " << patch.getPathType(k) << " (";
for (int p = 0; p < 4; p++) {
std::cout << patch.getPoint(k, p);
}
std::cout << ") " << patch.getColor(k).toString() << std::endl;
#endif
data.pathtype[k] = patch.getPathType(k);
if (patch.tensorIsSet(k)) {
data.tensorIsSet[k] = true;
data.tensorpoints[k] = patch.getTensorPoint(k);
//auto t = patch.getTensorPoint(k);
//std::cout << " sp_mesh_create_pattern: tensor " << k
// << " set to " << t << "." << std::endl;
} else {
data.tensorIsSet[k] = false;
//auto t = patch.coonsTensorPoint(k);
//std::cout << " sp_mesh_create_pattern: tensor " << k
// << " calculated as " << t << "." << std::endl;
}
auto color = patch.getColor(k);
for (int r = 0; r < 3; r++) {
data.color[k][r] = color.v.c[r];
}
data.opacity[k] = patch.getOpacity(k);
}
}
}
return std::make_unique<Inkscape::DrawingMeshGradient>(getSpread(), getUnits(), gradientTransform,
rows, cols, std::move(patchdata));
}
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