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88d21ce70e9221652e9cdeca1f3220cb594fd0da
create/src/Gui/SoFCVectorizeSVGAction.cpp
Markus Reitböck 6ef07bb358 Gui: use CMake to generate precompiled headers on all platforms 
"Professional CMake" book suggest the following:

"Targets should build successfully with or without compiler support for precompiled headers. It
should be considered an optimization, not a requirement. In particular, do not explicitly include a
precompile header (e.g. stdafx.h) in the source code, let CMake force-include an automatically
generated precompile header on the compiler command line instead. This is more portable across
the major compilers and is likely to be easier to maintain. It will also avoid warnings being
generated from certain code checking tools like iwyu (include what you use)."

Therefore, removed the "#include <PreCompiled.h>" from sources, also
there is no need for the "#ifdef _PreComp_" anymore
2025-09-14 09:47:03 +02:00

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/***************************************************************************
* Copyright (c) 2008 Werner Mayer <wmayer[at]users.sourceforge.net> *
* *
* This file is part of the FreeCAD CAx development system. *
* *
* This library is free software; you can redistribute it and/or *
* modify it under the terms of the GNU Library General Public *
* License as published by the Free Software Foundation; either *
* version 2 of the License, or (at your option) any later version. *
* *
* This library is distributed in the hope that it will be useful, *
* but WITHOUT ANY WARRANTY; without even the implied warranty of *
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
* GNU Library General Public License for more details. *
* *
* You should have received a copy of the GNU Library General Public *
* License along with this library; see the file COPYING.LIB. If not, *
* write to the Free Software Foundation, Inc., 59 Temple Place, *
* Suite 330, Boston, MA 02111-1307, USA *
* *
***************************************************************************/
# include <qglobal.h>
# include <iomanip>
# include <ios>
# include <Inventor/SbBSPTree.h>
#include <Base/FileInfo.h>
#include "SoFCVectorizeSVGAction.h"
using namespace Gui;
class SoVectorizeItem {
public:
SoVectorizeItem() {
this->type = UNDEFINED;
this->depth = 0.0f;
}
// quick and easy type system
enum Type {
UNDEFINED,
LINE,
TRIANGLE,
TEXT,
POINT,
IMAGE
};
int type;
float depth; // for depth sorting
};
class SoVectorizePoint : public SoVectorizeItem {
public:
SoVectorizePoint() {
this->type = POINT;
this->vidx = 0;
this->size = 1.0f;
this->col = 0;
}
int vidx; // index to BSPtree coordinate
float size; // Coin size (pixels)
uint32_t col;
};
class SoVectorizeTriangle : public SoVectorizeItem {
public:
SoVectorizeTriangle() {
this->type = TRIANGLE;
}
int vidx[3]; // indices to BSPtree coordinates
uint32_t col[3];
};
class SoVectorizeLine : public SoVectorizeItem {
public:
SoVectorizeLine() {
this->type = LINE;
vidx[0] = 0;
vidx[1] = 0;
col[0] = 0;
col[1] = 0;
this->pattern = 0xffff;
this->width = 1.0f;
}
int vidx[2]; // indices to BSPtree coordinates
uint32_t col[2];
uint16_t pattern; // Coin line pattern
float width; // Coin line width (pixels)
};
class SoVectorizeText : public SoVectorizeItem {
public:
SoVectorizeText() {
this->type = TEXT;
this->fontsize = 10;
this->col = 0;
this->justification = LEFT;
}
enum Justification {
LEFT,
RIGHT,
CENTER
};
SbName fontname;
float fontsize; // size in normalized coordinates
SbString string;
SbVec2f pos; // pos in normalized coordinates
uint32_t col;
Justification justification;
};
class SoVectorizeImage : public SoVectorizeItem {
public:
SoVectorizeImage() {
this->type = IMAGE;
this->image.data = nullptr;
this->image.nc = 0;
}
SbVec2f pos; // pos in normalized coordinates
SbVec2f size; // size in normalized coordinates
struct Image {
const unsigned char * data;
SbVec2s size;
int nc;
} image;
};
// ----------------------------------------------------------------
SoSVGVectorOutput::SoSVGVectorOutput() = default;
SoSVGVectorOutput::~SoSVGVectorOutput()
{
closeFile();
}
SbBool SoSVGVectorOutput::openFile (const char *filename)
{
Base::FileInfo fi(filename);
#ifdef _MSC_VER
this->file.open(fi.toStdWString().c_str(), std::ios::out | std::ios::binary);
#else
this->file.open(fi.filePath().c_str(), std::ios::out | std::ios::binary);
#endif
return this->file.is_open();
}
void SoSVGVectorOutput::closeFile ()
{
if (this->file.is_open())
this->file.close();
}
std::fstream& SoSVGVectorOutput::getFileStream()
{
return this->file;
}
// ----------------------------------------------------------------
namespace Gui {
class SoFCVectorizeSVGActionP
{
public:
SoFCVectorizeSVGActionP(SoFCVectorizeSVGAction * p) {
this->publ = p;
}
void printCircle(const SbVec3f & v, const SbColor & c, const float radius) const;
void printSquare(const SbVec3f & v, const SbColor & c, const float size) const;
void printTriangle(const SbVec3f * v, const SbColor * c) const;
void printTriangle(const SoVectorizeTriangle * item) const;
void printLine(const SoVectorizeLine * item) const;
void printPoint(const SoVectorizePoint * item) const;
void printText(const SoVectorizeText * item) const;
void printImage(const SoVectorizeImage * item) const;
private:
SoFCVectorizeSVGAction * publ;
};
}
void SoFCVectorizeSVGActionP::printText(const SoVectorizeText * item) const
{
SbVec2f mul = publ->getRotatedViewportSize();
SbVec2f add = publ->getRotatedViewportStartpos();
float posx = item->pos[0]*mul[0]+add[0];
float posy = item->pos[1]*mul[1]+add[1];
std::ostream& str = publ->getSVGOutput()->getFileStream();
str << "<text x=\"" << posx << "\" y=\"" << posy << "\" "
"font-size=\"" << item->fontsize * mul[1] << "px\">"
<< item->string.getString() << "</text>" << std::endl;
}
void SoFCVectorizeSVGActionP::printTriangle(const SoVectorizeTriangle * item) const
{
SbVec2f mul = publ->getRotatedViewportSize();
SbVec2f add = publ->getRotatedViewportStartpos();
const SbBSPTree & bsp = publ->getBSPTree();
SbVec3f v[3];
SbColor c[3];
float t[3];
for (int i = 0; i < 3; i++) {
v[i] = bsp.getPoint(item->vidx[i]);
v[i][0] = (v[i][0] * mul[0]) + add[0];
v[i][1] = ((1.0f-v[i][1]) * mul[1]) + add[1];
c[i].setPackedValue(item->col[i], t[i]);
}
this->printTriangle((SbVec3f*)v, (SbColor*)c);
}
/* TODO: Support gradients, e.g.
<defs>
<linearGradient id="verlauf" x1="0%" y1="100%" x2="100%" y2="100%">
<stop offset="0%" stop-color="black" stop-opacity="100%" />
<stop offset="100%" stop-color="white" stop-opacity="50%" />
</linearGradient>
</defs>
*/
/* Example: color per vertex
#Inventor V2.1 ascii
Separator {
Coordinate3 {
point [ 0.000000 0.000000 0.000000,
100.000000 50.000000 0.000000,
0.000000 100.000000 0.000000 ]
}
Material {
diffuseColor [ 1 1 0, 0 0 1, 1 0 0 ]
}
MaterialBinding {
value PER_VERTEX
}
IndexedFaceSet {
coordIndex [ 0, 1, 2, -1 ]
}
}
<?xml version="1.0"?><!DOCTYPE svg PUBLIC "-//W3C//DTD SVG 1.0//EN"
"http://www.w3.org/TR/2001/REC-SVG-20010904/DTD/svg10.dtd">
<svg width="100" height="100" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink">
<defs>
<linearGradient id="red" gradientUnits="userSpaceOnUse" x1="0" y1="0" x2="35" y2="80">
<stop offset="0" stop-color="rgb(255,0,0)" stop-opacity="1"/>
<stop offset="1" stop-color="rgb(255,0,0)" stop-opacity="0"/>
</linearGradient>
<linearGradient id="blue" gradientUnits="userSpaceOnUse" x1="100" y1="50" x2="0" y2="50">
<stop offset="0" stop-color="rgb(0,0,255)" stop-opacity="1"/>
<stop offset="1" stop-color="rgb(0,0,255)" stop-opacity="0"/>
</linearGradient>
<linearGradient id="yellow" gradientUnits="userSpaceOnUse" x1="0" y1="100" x2="40" y2="20">
<stop offset="0" stop-color="rgb(255,255,0)" stop-opacity="1"/>
<stop offset="1" stop-color="rgb(255,255,0)" stop-opacity="0"/>
</linearGradient>
<path id="triangle1" d="M0 0 L100 50 L0 100 z"/>
<filter id="colorAdd">
<feComposite in="SourceGraphic" in2="BackgroundImage" operator="arithmetic" k2="1" k3="1"/>
</filter>
<filter id="Matrix1">
<feColorMatrix type="matrix" values="
1 0 0 0 0
0 1 0 0 0
0 0 1 0 0
1 1 1 1 0
0 0 0 0 1
"/>
</filter>
</defs>
<g filter="url(#Matrix1)">
<use xlink:href="#triangle1" fill="url(#blue)"/>
<use xlink:href="#triangle1" fill="url(#yellow)" filter="url(#colorAdd)"/>
<use xlink:href="#triangle1" fill="url(#red)" filter="url(#colorAdd)"/>
</g>
</svg>
*/
void SoFCVectorizeSVGActionP::printTriangle(const SbVec3f * v, const SbColor * c) const
{
if (v[0] == v[1] || v[1] == v[2] || v[0] == v[2])
return;
uint32_t cc = c->getPackedValue();
std::ostream& str = publ->getSVGOutput()->getFileStream();
str << "<path d=\"M "
<< v[2][0] << "," << v[2][1] << " L "
<< v[1][0] << "," << v[1][1] << " "
<< v[0][0] << "," << v[0][1] << " z\"" << std::endl
<< " style=\"fill:#"
<< std::hex << std::setw(6) << std::setfill('0') << (cc >> 8)
<< "; stroke:#"
<< std::hex << std::setw(6) << std::setfill('0') << (cc >> 8)
<< ";" << std::endl
<< " stroke-width:" << publ->getLineWidth() << ";" << std::endl
<< " stroke-linecap:round;stroke-linejoin:round\"/>" << std::endl;
}
void SoFCVectorizeSVGActionP::printCircle(const SbVec3f & v, const SbColor & c, const float radius) const
{
// todo
Q_UNUSED(v);
Q_UNUSED(c);
Q_UNUSED(radius);
}
void SoFCVectorizeSVGActionP::printSquare(const SbVec3f & v, const SbColor & c, const float size) const
{
// todo
Q_UNUSED(v);
Q_UNUSED(c);
Q_UNUSED(size);
}
void SoFCVectorizeSVGActionP::printLine(const SoVectorizeLine * item) const
{
SbVec2f mul = publ->getRotatedViewportSize();
SbVec2f add = publ->getRotatedViewportStartpos();
const SbBSPTree & bsp = publ->getBSPTree();
SbVec3f v[2];
SbColor c[2];
float t[2];
for (int i = 0; i < 2; i++) {
v[i] = bsp.getPoint(item->vidx[i]);
v[i][0] = (v[i][0] * mul[0]) + add[0];
v[i][1] = ((1.0f-v[i][1]) * mul[1]) + add[1];
c[i].setPackedValue(item->col[i], t[i]);
}
uint32_t cc = c[0].getPackedValue();
std::ostream& str = publ->getSVGOutput()->getFileStream();
str << "<line "
<< "x1=\"" << v[0][0] << "\" y1=\"" << v[0][1] << "\" "
<< "x2=\"" << v[1][0] << "\" y2=\"" << v[1][1] << "\" "
<< "stroke=\"#"
<< std::hex << std::setw(6) << std::setfill('0') << (cc >> 8) << "\""
<< " stroke-linecap=\"square\" "
<< " stroke-width=\"" << publ->getLineWidth() << "\" />\n";
}
void SoFCVectorizeSVGActionP::printPoint(const SoVectorizePoint * item) const
{
// todo
Q_UNUSED(item);
}
void SoFCVectorizeSVGActionP::printImage(const SoVectorizeImage * item) const
{
// todo
Q_UNUSED(item);
}
// -------------------------------------------------------
SO_ACTION_SOURCE(SoFCVectorizeSVGAction)
void SoFCVectorizeSVGAction::initClass()
{
SO_ACTION_INIT_CLASS(SoFCVectorizeSVGAction, SoVectorizeAction);
}
SoFCVectorizeSVGAction::SoFCVectorizeSVGAction()
{
SO_ACTION_CONSTRUCTOR(SoFCVectorizeSVGAction);
this->setOutput(new SoSVGVectorOutput);
this->p = new SoFCVectorizeSVGActionP(this);
}
SoFCVectorizeSVGAction::~SoFCVectorizeSVGAction()
{
delete this->p;
}
SoSVGVectorOutput *
SoFCVectorizeSVGAction::getSVGOutput() const
{
return static_cast<SoSVGVectorOutput*>(SoVectorizeAction::getOutput());
}
void SoFCVectorizeSVGAction::printHeader() const
{
std::ostream& str = this->getSVGOutput()->getFileStream();
str << R"(<?xml version="1.0" encoding="UTF-8" standalone="no"?>)" << std::endl;
str << "<!-- Created with FreeCAD (https://www.freecad.org) -->" << std::endl;
str << "<svg xmlns=\"http://www.w3.org/2000/svg\"" << std::endl;
str << R"( xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:ev="http://www.w3.org/2001/xml-events")" << std::endl;
str << R"( version="1.1" baseProfile="full")" << std::endl;
SbVec2f size = getPageSize();
if (this->getOrientation() == LANDSCAPE) {
SbSwap<float>(size[0], size[1]);
}
if (getUseMM()) {
str << " width=\"" << size[0] << "mm\" height=\"" << size[1] << "mm\""<< std::endl;
str << " viewBox=\"0 0 " << size[0] << " " << size[1] << "\">" << std::endl;
} else { //original code used px
str << " width=\"" << size[0] << "\" height=\"" << size[1] << "\">" << std::endl;
}
str << "<g>" << std::endl;
}
void SoFCVectorizeSVGAction::printFooter() const
{
std::ostream& str = this->getSVGOutput()->getFileStream();
str << "</g>" << std::endl;
str << "</svg>";
}
void SoFCVectorizeSVGAction::printViewport() const
{
}
void SoFCVectorizeSVGAction::printBackground() const
{
if (!getBackgroundState()) {
return;
}
SbVec2f mul = getRotatedViewportSize();
SbVec2f add = getRotatedViewportStartpos();
float x[2],y[2];
x[0] = add[0];
x[1] = mul[0] - add[0];
y[0] = add[1];
y[1] = mul[1] - add[1];
SbColor bg;
(void)this->getBackgroundColor(bg);
uint32_t cc = bg.getPackedValue();
std::ostream& str = this->getSVGOutput()->getFileStream();
str << "</g>" << std::endl;
str << "<path" << std::endl;
str << " d=\"M "
<< x[0] << "," << y[0] << " L "
<< x[1] << "," << y[0] << " L "
<< x[1] << "," << y[1] << " L "
<< x[0] << "," << y[1] << " L "
<< x[0] << "," << y[0] << " z \"" << std::endl;
str << " style=\"fill:#"
<< std::hex << std::setw(6) << std::setfill('0') << (cc >> 8)
<< ";fill-opacity:1;fill-rule:evenodd;stroke:none;"
"stroke-width:" << getLineWidth() << ";stroke-linecap:butt;stroke-linejoin:"
"miter;stroke-opacity:1\" />\n";
str << "<g>" << std::endl;
}
void SoFCVectorizeSVGAction::printItem(const SoVectorizeItem * item) const
{
switch (item->type) {
case SoVectorizeItem::TRIANGLE:
this->p->printTriangle(static_cast<const SoVectorizeTriangle*>(item));
break;
case SoVectorizeItem::LINE:
this->p->printLine(static_cast<const SoVectorizeLine*>(item));
break;
case SoVectorizeItem::POINT:
this->p->printPoint(static_cast<const SoVectorizePoint*>(item));
break;
case SoVectorizeItem::TEXT:
this->p->printText(static_cast<const SoVectorizeText*>(item));
break;
case SoVectorizeItem::IMAGE:
this->p->printImage(static_cast<const SoVectorizeImage*>(item));
break;
default:
assert(0 && "unsupported item");
break;
}
}
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