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svgfilesplitter.cpp
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/*******************************************************************
Part of the Fritzing project - http://fritzing.org
Copyright (c) 2007-2019 Fritzing
Fritzing is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
Fritzing 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 General Public License for more details.
You should have received a copy of the GNU General Public License
along with Fritzing. If not, see <http://www.gnu.org/licenses/>.
********************************************************************/
#include "svgfilesplitter.h"
#include "../utils/misc.h"
#include "../utils/textutils.h"
#include "../debugdialog.h"
#include "svgpathparser.h"
#include "svgpathlexer.h"
#include "svgpathrunner.h"
#include <QDomDocument>
#include <QFile>
#include <QtDebug>
#include <QXmlStreamReader>
struct HVConvertData {
double x;
double y;
double subX;
double subY;
QString path;
};
void appendPair(QString & path, double a1, double a2) {
path.append(QString::number(a1));
path.append(',');
path.append(QString::number(a2));
path.append(',');
}
//////////////////////////////////////////////////
bool SvgFileSplitter::split(const QString & filename, const QString & elementID)
{
m_byteArray.clear();
QFile file(filename);
if (!file.open(QFile::ReadOnly | QFile::Text)) {
return false;
}
QString contents = file.readAll();
file.close();
return splitString(contents, elementID);
}
bool SvgFileSplitter::splitString(QString & contents, const QString & elementID)
{
m_byteArray.clear();
// gets rid of some crap inserted by illustrator which can screw up polygons and paths
contents.replace('\t', ' ');
contents.replace('\n', ' ');
contents.replace('\r', ' ');
// get rid of inkscape stuff too
TextUtils::cleanSodipodi(contents);
QString errorStr;
int errorLine;
int errorColumn;
if (!m_domDocument.setContent(contents, true, &errorStr, &errorLine, &errorColumn)) {
//DebugDialog::debug(QString("parse error: %1 l:%2 c:%3\n\n%4").arg(errorStr).arg(errorLine).arg(errorColumn).arg(contents));
return false;
}
QDomElement root = m_domDocument.documentElement();
if (root.isNull()) {
return false;
}
if (root.tagName() != "svg") {
return false;
}
root.removeAttribute("space");
QDomElement element = TextUtils::findElementWithAttribute(root, "id", elementID);
if (element.isNull()) {
return false;
}
QStringList superTransforms;
QDomNode parent = element.parentNode();
while (!parent.isNull()) {
QDomElement e = parent.toElement();
if (!e.isNull()) {
QString transform = e.attribute("transform");
if (!transform.isEmpty()) {
superTransforms.append(transform);
}
}
parent = parent.parentNode();
}
if (!superTransforms.isEmpty()) {
element.removeAttribute("id");
}
QDomDocument document;
QDomNode node = document.importNode(element, true);
document.appendChild(node);
QString elementText = document.toString();
if (!superTransforms.isEmpty()) {
for (int i = 0; i < superTransforms.count() - 1; i++) {
elementText = QString("<g transform='%1'>%2</g>").arg(superTransforms[i], elementText);
}
elementText = QString("<g id='%1' transform='%2'>%3</g>").arg(
elementID,
superTransforms[superTransforms.count() - 1],
elementText
);
}
while (!root.firstChild().isNull()) {
root.removeChild(root.firstChild());
}
// at this point the document should contain only the <svg> element and possibly svg info strings
QString svgOnly = m_domDocument.toString();
int ix = svgOnly.lastIndexOf("/>");
if (ix < 0) return false;
svgOnly[ix] = ' ';
svgOnly += elementText;
svgOnly += "</svg>";
if (!m_domDocument.setContent(svgOnly, true, &errorStr, &errorLine, &errorColumn)) {
return false;
}
m_byteArray = m_domDocument.toByteArray();
//QString s = m_domDocument.toString();
//DebugDialog::debug(s);
return true;
}
QString SvgFileSplitter::elementString(const QString & elementID) {
QDomElement root = m_domDocument.documentElement();
QDomElement mainElement = TextUtils::findElementWithAttribute(root, "id", elementID);
if (mainElement.isNull()) return ___emptyString___;
QDomDocument document;
QDomNode node = document.importNode(mainElement, true);
document.appendChild(node);
return document.toString();
}
bool SvgFileSplitter::normalize(double dpi, const QString & elementID, bool blackOnly, double & factor)
{
// get the viewbox and the width and height
// then normalize them
// then normalize all the internal stuff
// if there are translations, we're probably ok
factor = 1;
QDomElement root = m_domDocument.documentElement();
if (root.isNull()) return false;
double sWidth, sHeight, vbWidth, vbHeight;
if (!TextUtils::getSvgSizes(m_domDocument, sWidth, sHeight, vbWidth, vbHeight)) return false;
root.setAttribute("width", QString("%1in").arg(sWidth));
root.setAttribute("height", QString("%1in").arg(sHeight));
root.setAttribute("viewBox", QString("%1 %2 %3 %4").arg(0).arg(0).arg(sWidth * dpi).arg(sHeight * dpi) );
QDomElement mainElement = root;
if (!elementID.isEmpty()) {
mainElement = TextUtils::findElementWithAttribute(root, "id", elementID);
if (mainElement.isNull()) return false;
}
normalizeChild(mainElement, sWidth * dpi, sHeight * dpi, vbWidth, vbHeight, blackOnly);
factor = sWidth * dpi / vbWidth;
return true;
}
QPainterPath SvgFileSplitter::painterPath(double dpi, const QString & elementID)
{
// only partially implemented because so far we only use this for polygons generated for the groundplane
QPainterPath ppath;
double factor;
bool result = normalize(dpi, elementID, false, factor);
if (!result) return ppath;
QDomElement root = m_domDocument.documentElement();
if (root.isNull()) return ppath;
QDomElement mainElement = TextUtils::findElementWithAttribute(root, "id", elementID);
if (mainElement.isNull()) return ppath;
QDomElement childElement = mainElement.firstChildElement();
while (!childElement.isNull()) {
painterPathChild(childElement, ppath);
childElement = childElement.nextSiblingElement();
}
return ppath;
}
void SvgFileSplitter::painterPathChild(QDomElement & element, QPainterPath & ppath)
{
// only partially implemented
if (element.nodeName().compare("circle") == 0) {
double cx = element.attribute("cx").toDouble();
double cy = element.attribute("cy").toDouble();
double r = element.attribute("r").toDouble();
double stroke = element.attribute("stroke-width").toDouble();
ppath.addEllipse(QRectF(cx - r - (stroke / 2), cy - r - (stroke / 2), (r * 2) + stroke, (r * 2) + stroke));
}
else if (element.nodeName().compare("line") == 0) {
/*
double x1 = element.attribute("x1").toDouble();
double y1 = element.attribute("y1").toDouble();
double x2 = element.attribute("x2").toDouble();
double y2 = element.attribute("y2").toDouble();
double stroke = element.attribute("stroke-width").toDouble();
// treat as parallel lines stroke width apart?
*/
}
else if (element.nodeName().compare("rect") == 0) {
double width = element.attribute("width").toDouble();
double height = element.attribute("height").toDouble();
double x = element.attribute("x").toDouble();
double y = element.attribute("y").toDouble();
double stroke = element.attribute("stroke-width").toDouble();
double rx = element.attribute("rx").toDouble();
double ry = element.attribute("ry").toDouble();
if (rx != 0 || ry != 0) {
ppath.addRoundedRect(x - (stroke / 2), y - (stroke / 2), width + stroke, height + stroke, rx, ry);
}
else {
ppath.addRect(x - (stroke / 2), y - (stroke / 2), width + stroke, height + stroke);
}
}
else if (element.nodeName().compare("ellipse") == 0) {
double cx = element.attribute("cx").toDouble();
double cy = element.attribute("cy").toDouble();
double rx = element.attribute("rx").toDouble();
double ry = element.attribute("ry").toDouble();
double stroke = element.attribute("stroke-width").toDouble();
ppath.addEllipse(QRectF(cx - rx - (stroke / 2), cy - ry - (stroke / 2), (rx * 2) + stroke, (ry * 2) + stroke));
}
else if (element.nodeName().compare("polygon") == 0 || element.nodeName().compare("polyline") == 0) {
QString data = element.attribute("points");
if (!data.isEmpty()) {
const char * slot = SLOT(painterPathCommandSlot(QChar, bool, QList<double> &, void *));
PathUserData pathUserData;
pathUserData.pathStarting = true;
pathUserData.painterPath = &ppath;
if (parsePath(data, slot, pathUserData, this, false)) {
}
}
}
else if (element.nodeName().compare("path") == 0) {
/*
QString data = element.attribute("d").trimmed();
if (!data.isEmpty()) {
const char * slot = SLOT(normalizeCommandSlot(QChar, bool, QList<double> &, void *));
PathUserData pathUserData;
pathUserData.pathStarting = true;
pathUserData.sNewHeight = sNewHeight;
pathUserData.sNewWidth = sNewWidth;
pathUserData.vbHeight = vbHeight;
pathUserData.vbWidth = vbWidth;
if (parsePath(data, slot, pathUserData, this, true)) {
element.setAttribute("d", pathUserData.string);
}
}
*/
}
else {
QDomElement childElement = element.firstChildElement();
while (!childElement.isNull()) {
painterPathChild(childElement, ppath);
childElement = childElement.nextSiblingElement();
}
}
}
void SvgFileSplitter::normalizeTranslation(QDomElement & element,
double sNewWidth, double sNewHeight,
double vbWidth, double vbHeight)
{
QString attr = element.attribute("transform");
if (attr.isEmpty()) return;
QTransform matrix = TextUtils::elementToTransform(element);
if (matrix.dx() == 0 && matrix.dy() == 0) return;
double dx = matrix.dx() * sNewWidth / vbWidth;
double dy = matrix.dy() * sNewHeight / vbHeight;
if (dx == 0 && dy == 0) return;
matrix = QTransform(matrix.m11(), matrix.m12(), matrix.m21(), matrix.m22(), dx, dy);
TextUtils::setSVGTransform(element, matrix);
}
void SvgFileSplitter::normalizeChild(QDomElement & element,
double sNewWidth, double sNewHeight,
double vbWidth, double vbHeight, bool blackOnly)
{
normalizeTranslation(element, sNewWidth, sNewHeight, vbWidth, vbHeight);
bool doChildren = false;
QString nodeName = element.nodeName();
if (nodeName.compare("g") == 0) {
TextUtils::fixStyleAttribute(element);
normalizeAttribute(element, "stroke-width", sNewWidth, vbWidth);
normalizeFontSize(element, "font-size", sNewWidth, vbWidth);
setStrokeOrFill(element, blackOnly, "black", false);
doChildren = true;
}
else if (nodeName.compare("circle") == 0) {
TextUtils::fixStyleAttribute(element);
normalizeAttribute(element, "cx", sNewWidth, vbWidth);
normalizeAttribute(element, "cy", sNewHeight, vbHeight);
normalizeAttribute(element, "r", sNewWidth, vbWidth);
normalizeAttribute(element, "stroke-width", sNewWidth, vbWidth);
setStrokeOrFill(element, blackOnly, "black", false);
}
else if (nodeName.compare("line") == 0) {
TextUtils::fixStyleAttribute(element);
normalizeAttribute(element, "x1", sNewWidth, vbWidth);
normalizeAttribute(element, "y1", sNewHeight, vbHeight);
normalizeAttribute(element, "x2", sNewWidth, vbWidth);
normalizeAttribute(element, "y2", sNewHeight, vbHeight);
normalizeAttribute(element, "stroke-width", sNewWidth, vbWidth);
setStrokeOrFill(element, blackOnly, "black", false);
}
else if (nodeName.compare("rect") == 0) {
TextUtils::fixStyleAttribute(element);
normalizeAttribute(element, "width", sNewWidth, vbWidth);
normalizeAttribute(element, "height", sNewHeight, vbHeight);
normalizeAttribute(element, "x", sNewWidth, vbWidth);
normalizeAttribute(element, "y", sNewHeight, vbHeight);
normalizeAttribute(element, "stroke-width", sNewWidth, vbWidth);
normalizeArrayAttribute(element, "stroke-dasharray", sNewWidth, vbWidth);
// rx, ry for rounded rects
if (!element.attribute("rx").isEmpty()) {
normalizeAttribute(element, "rx", sNewWidth, vbWidth);
}
if (!element.attribute("ry").isEmpty()) {
normalizeAttribute(element, "ry", sNewHeight, vbHeight);
}
setStrokeOrFill(element, blackOnly, "black", false);
}
else if (nodeName.compare("ellipse") == 0) {
TextUtils::fixStyleAttribute(element);
normalizeAttribute(element, "cx", sNewWidth, vbWidth);
normalizeAttribute(element, "cy", sNewHeight, vbHeight);
normalizeAttribute(element, "rx", sNewWidth, vbWidth);
normalizeAttribute(element, "ry", sNewHeight, vbHeight);
normalizeAttribute(element, "stroke-width", sNewWidth, vbWidth);
setStrokeOrFill(element, blackOnly, "black", false);
}
else if (nodeName.compare("polygon") == 0 || nodeName.compare("polyline") == 0) {
TextUtils::fixStyleAttribute(element);
normalizeAttribute(element, "stroke-width", sNewWidth, vbWidth);
QString data = element.attribute("points");
if (!data.isEmpty()) {
const char * slot = SLOT(normalizeCommandSlot(QChar, bool, QList<double> &, void *));
PathUserData pathUserData;
pathUserData.pathStarting = true;
pathUserData.sNewHeight = sNewHeight;
pathUserData.sNewWidth = sNewWidth;
pathUserData.vbHeight = vbHeight;
pathUserData.vbWidth = vbWidth;
if (parsePath(data, slot, pathUserData, this, false)) {
pathUserData.string.remove(0, 1); // get rid of the "M"
element.setAttribute("points", pathUserData.string);
}
}
setStrokeOrFill(element, blackOnly, "black", false);
}
else if (nodeName.compare("path") == 0) {
TextUtils::fixStyleAttribute(element);
normalizeAttribute(element, "stroke-width", sNewWidth, vbWidth);
setStrokeOrFill(element, blackOnly, "black", false);
QString data = element.attribute("d").trimmed();
if (!data.isEmpty()) {
const char * slot = SLOT(normalizeCommandSlot(QChar, bool, QList<double> &, void *));
PathUserData pathUserData;
pathUserData.pathStarting = true;
pathUserData.sNewHeight = sNewHeight;
pathUserData.sNewWidth = sNewWidth;
pathUserData.vbHeight = vbHeight;
pathUserData.vbWidth = vbWidth;
if (parsePath(data, slot, pathUserData, this, true)) {
element.setAttribute("d", pathUserData.string);
}
}
}
else if (nodeName.compare("text") == 0) {
TextUtils::fixStyleAttribute(element);
normalizeAttribute(element, "x", sNewWidth, vbWidth);
normalizeAttribute(element, "y", sNewHeight, vbHeight);
normalizeAttribute(element, "stroke-width", sNewWidth, vbWidth);
normalizeFontSize(element, "font-size", sNewWidth, vbWidth);
setStrokeOrFill(element, blackOnly, "black", false);
}
else if (nodeName.compare("linearGradient") == 0) {
if (element.attribute("gradientUnits").compare("userSpaceOnUse") == 0) {
normalizeAttribute(element, "x1", sNewWidth, vbWidth);
normalizeAttribute(element, "y1", sNewWidth, vbWidth);
normalizeAttribute(element, "x2", sNewWidth, vbWidth);
normalizeAttribute(element, "y2", sNewWidth, vbWidth);
}
else {
//DebugDialog::debug(QString("unable to handle linearGradient with gradientUnits=%1").arg(element.attribute("gradientUnits")));
}
}
else if (nodeName.compare("radialGradient") == 0) {
if (element.attribute("gradientUnits").compare("userSpaceOnUse") == 0) {
normalizeAttribute(element, "cx", sNewWidth, vbWidth);
normalizeAttribute(element, "cy", sNewWidth, vbWidth);
normalizeAttribute(element, "fx", sNewWidth, vbWidth);
normalizeAttribute(element, "fy", sNewWidth, vbWidth);
normalizeAttribute(element, "r", sNewWidth, vbWidth);
}
else {
//DebugDialog::debug(QString("unable to handle radialGradient with gradientUnits=%1").arg(element.attribute("gradientUnits")));
}
}
else {
doChildren = true;
}
if (doChildren) {
QDomElement childElement = element.firstChildElement();
while (!childElement.isNull()) {
normalizeChild(childElement, sNewWidth, sNewHeight, vbWidth, vbHeight, blackOnly);
childElement = childElement.nextSiblingElement();
}
}
}
bool SvgFileSplitter::normalizeFontSize(QDomElement & element, const char * attributeName, double num, double denom)
{
QString attributeValue = element.attribute(attributeName);
if (attributeValue.isEmpty()) return true;
bool ok;
double n = attributeValue.replace("px","").toDouble(&ok) * num / denom;
if (!ok) {
QString string;
QTextStream stream(&string);
element.save(stream, 0);
DebugDialog::debug("bad font-size " + string);
}
element.setAttribute(attributeName, QString::number(n));
return ok;
}
bool SvgFileSplitter::normalizeAttribute(QDomElement & element, const char * attributeName, double num, double denom)
{
QString attributeValue = element.attribute(attributeName);
if (attributeValue.isEmpty()) return true;
bool ok;
double n = attributeValue.toDouble(&ok) * num / denom;
if (!ok) {
QString string;
QTextStream stream(&string);
element.save(stream, 0);
DebugDialog::debug("bad attribute " + string);
}
element.setAttribute(attributeName, QString::number(n));
return ok;
}
bool SvgFileSplitter::normalizeArrayAttribute(QDomElement & element, const char * attributeName, double num, double denom)
{
QString attributeValue = element.attribute(attributeName);
QRegularExpression commaSpaceSeparator("(( *, *)|( +))");
if (attributeValue.isEmpty()) return true;
if (attributeValue.contains(commaSpaceSeparator)) {
QStringList subAttributes = attributeValue.split(commaSpaceSeparator, Qt::SkipEmptyParts);
QStringList normalizedSubAttributes;
bool allOk = true;
for (const QString & subAttribute: std::as_const(subAttributes)) {
bool ok;
double n = subAttribute.toDouble(&ok) * num / denom;
if (!ok) {
allOk = false;
QString string;
QTextStream stream(&string);
element.save(stream, 0);
DebugDialog::debug("bad attribute " + string);
}
normalizedSubAttributes.append(QString::number(n));
}
element.setAttribute(attributeName, normalizedSubAttributes.join(", "));
return allOk;
} else {
if (attributeValue.compare("none") == 0) {
return true;
}
bool ok;
double n = attributeValue.toDouble(&ok) * num / denom;
if (!ok) {
QString string;
QTextStream stream(&string);
element.save(stream, 0);
DebugDialog::debug("bad attribute " + string);
}
element.setAttribute(attributeName, QString::number(n));
return ok;
}
}
QString SvgFileSplitter::shift(double x, double y, const QString & elementID, bool shiftTransforms)
{
QDomElement root = m_domDocument.documentElement();
QDomElement mainElement = TextUtils::findElementWithAttribute(root, "id", elementID);
if (mainElement.isNull()) return "";
QDomElement childElement = mainElement.firstChildElement();
while (!childElement.isNull()) {
shiftChild(childElement, x, y, shiftTransforms);
childElement = childElement.nextSiblingElement();
}
QDomDocument document;
QDomNode node = document.importNode(mainElement, true);
document.appendChild(node);
return document.toString();
}
bool SvgFileSplitter::shiftTranslation(QDomElement & element, double x, double y)
{
QString attr = element.attribute("transform");
if (attr.isEmpty()) return false;
QTransform m0 = TextUtils::elementToTransform(element);
bool ok1, ok2, ok3;
double _x = element.attribute("_x").toDouble(&ok1);
double _y = element.attribute("_y").toDouble(&ok2);
double _r = element.attribute("_r").toDouble(&ok3);
if (ok1 && ok2 && ok3) {
QTransform mx = QTransform().translate(-_x - x, -_y - y) * QTransform().rotate(_r) * QTransform().translate(_x + x, _y + y);
TextUtils::setSVGTransform(element, mx);
element.removeAttribute("_x");
element.removeAttribute("_y");
element.removeAttribute("_r");
return false;
}
// calculate the original cx and cy and retranslate (there must be an easier way)
// and this doesn't seem to work...
double sinTheta = m0.m21();
double cosTheta = m0.m11();
double cosThetaMinusOne = cosTheta - 1;
double cx = (m0.dx() + (sinTheta * m0.dy() / cosThetaMinusOne)) /
(cosThetaMinusOne + (sinTheta * sinTheta / cosThetaMinusOne));
double cy = (m0.dy() - (sinTheta * cx)) / cosThetaMinusOne;
cx += x;
cy += y;
QTransform m1(m0.m11(), m0.m12(), m0.m21(), m0.m22(), 0, 0);
QTransform mx = QTransform().translate(-cx, -cy) * m1 * QTransform().translate(cx, cy);
TextUtils::setSVGTransform(element, mx);
return false;
}
void SvgFileSplitter::shiftChild(QDomElement & element, double x, double y, bool shiftTransforms)
{
if (shiftTransforms) {
shiftTranslation(element, x, y);
}
QString nodeName = element.nodeName();
if (nodeName.compare("circle") == 0 || nodeName.compare("ellipse") == 0) {
shiftAttribute(element, "cx", x);
shiftAttribute(element, "cy", y);
}
else if (nodeName.compare("line") == 0) {
shiftAttribute(element, "x1", x);
shiftAttribute(element, "y1", y);
shiftAttribute(element, "x2", x);
shiftAttribute(element, "y2", y);
}
else if (nodeName.compare("rect") == 0) {
shiftAttribute(element, "x", x);
shiftAttribute(element, "y", y);
}
else if (nodeName.compare("text") == 0) {
shiftAttribute(element, "x", x);
shiftAttribute(element, "y", y);
}
else if (nodeName.compare("polygon") == 0 || nodeName.compare("polyline") == 0) {
QString data = element.attribute("points");
if (!data.isEmpty()) {
const char * slot = SLOT(shiftCommandSlot(QChar, bool, QList<double> &, void *));
PathUserData pathUserData;
pathUserData.pathStarting = true;
pathUserData.x = x;
pathUserData.y = y;
if (parsePath(data, slot, pathUserData, this, false)) {
pathUserData.string.remove(0, 1); // get rid of the "M"
element.setAttribute("points", pathUserData.string);
}
}
}
else if (nodeName.compare("path") == 0) {
QString data = element.attribute("d").trimmed();
if (!data.isEmpty()) {
const char * slot = SLOT(shiftCommandSlot(QChar, bool, QList<double> &, void *));
PathUserData pathUserData;
pathUserData.pathStarting = true;
pathUserData.x = x;
pathUserData.y = y;
if (parsePath(data, slot, pathUserData, this, true)) {
element.setAttribute("d", pathUserData.string);
}
}
}
else {
QDomElement childElement = element.firstChildElement();
while (!childElement.isNull()) {
shiftChild(childElement, x, y, shiftTransforms);
childElement = childElement.nextSiblingElement();
}
}
}
void SvgFileSplitter::normalizeCommandSlot(QChar command, bool relative, QList<double> & args, void * userData) {
Q_UNUSED(relative); // just normalizing here, so relative is not used
auto * pathUserData = (PathUserData *) userData;
double d;
pathUserData->string.append(command);
switch(command.toLatin1()) {
case 'v':
case 'V':
//DebugDialog::debug("'v' and 'V' are now removed by preprocessing; shouldn't be here");
/*
for (int i = 0; i < args.count(); i++) {
d = args[i] * pathUserData->sNewHeight / pathUserData->vbHeight;
pathUserData->string.append(QString::number(d));
if (i < args.count() - 1) {
pathUserData->string.append(',');
}
}
*/
break;
case 'h':
case 'H':
//DebugDialog::debug("'h' and 'H' are now removed by preprocessing; shouldn't be here");
/*
for (int i = 0; i < args.count(); i++) {
d = args[i] * pathUserData->sNewWidth / pathUserData->vbWidth;
pathUserData->string.append(QString::number(d));
if (i < args.count() - 1) {
pathUserData->string.append(',');
}
}
*/
break;
case 'a':
case 'A':
for (int i = 0; i < args.count(); i++) {
switch (i % 7) {
case 0:
case 5:
d = args[i] * pathUserData->sNewWidth / pathUserData->vbWidth;
break;
case 1:
case 6:
d = args[i] * pathUserData->sNewHeight / pathUserData->vbHeight;
break;
default:
d = args[i];
break;
}
pathUserData->string.append(QString::number(d));
if (i < args.count() - 1) {
pathUserData->string.append(',');
}
}
break;
case SVGPathLexer::FakeClosePathChar:
break;
default:
for (int i = 0; i < args.count(); i++) {
if (i % 2 == 0) {
d = args[i] * pathUserData->sNewWidth / pathUserData->vbWidth;
}
else {
d = args[i] * pathUserData->sNewHeight / pathUserData->vbHeight;
}
pathUserData->string.append(QString::number(d));
if (i < args.count() - 1) {
pathUserData->string.append(',');
}
}
break;
}
}
void SvgFileSplitter::painterPathCommandSlot(QChar command, bool relative, QList<double> & args, void * userData) {
Q_UNUSED(relative); // just normalizing here, so relative is not used
Q_UNUSED(command) // note: painterPathCommandSlot is only partially implemented
auto * pathUserData = (PathUserData *) userData;
double dx, dy;
for (int i = 0; i < args.count(); i += 2) {
dx = args[i];
dy = args[i + 1];
if (i == 0) {
pathUserData->painterPath->moveTo(dx, dy);
}
else {
pathUserData->painterPath->lineTo(dx, dy);
}
}
pathUserData->painterPath->closeSubpath();
}
void SvgFileSplitter::shiftCommandSlot(QChar command, bool relative, QList<double> & args, void * userData) {
Q_UNUSED(relative); // just normalizing here, so relative is not used
auto * pathUserData = (PathUserData *) userData;
double d;
pathUserData->string.append(command);
switch(command.toLatin1()) {
case 'v':
case 'V':
//DebugDialog::debug("'v' and 'V' are now removed by preprocessing; shouldn't be here");
/*
d = args[0];
if (!relative) {
d += pathUserData->y;
}
pathUserData->string.append(QString::number(d));
*/
break;
case 'h':
case 'H':
//DebugDialog::debug("'h' and 'H' are now removed by preprocessing; shouldn't be here");
/*
d = args[0];
if (!relative) {
d += pathUserData->x;
}
pathUserData->string.append(QString::number(d));
*/
break;
case 'z':
case 'Z':
pathUserData->pathStarting = true;
break;
case SVGPathLexer::FakeClosePathChar:
pathUserData->pathStarting = true;
break;
case 'a':
case 'A':
for (int i = 0; i < args.count(); i++) {
d = args[i];
if (i % 7 == 5) {
if (!relative) {
d += pathUserData->x;
}
}
else if (i % 7 == 6) {
if (!relative) {
d += pathUserData->y;
}
}
pathUserData->string.append(QString::number(d));
if (i < args.count() - 1) {
pathUserData->string.append(',');
}
}
break;
case 'm':
case'M':
standardArgs(relative, pathUserData->pathStarting, args, pathUserData);
pathUserData->pathStarting = false;
break;
default:
standardArgs(relative, false, args, pathUserData);
break;
}
}
void SvgFileSplitter::standardArgs(bool relative, bool starting, QList<double> & args, PathUserData * pathUserData) {
for (int i = 0; i < args.count(); i++) {
double d = args[i];
if (i % 2 == 0) {
if (!relative || (starting && i == 0)) {
d += pathUserData->x;
}
}
else {
if (!relative || (starting && i == 1)) {
d += pathUserData->y;
}
}
pathUserData->string.append(QString::number(d));
if (i < args.count() - 1) {
pathUserData->string.append(',');
}
}
}
QVector<QVariant> SvgFileSplitter::simpleParsePath(const QString & data) {
static QVector<QVariant> emptyStack;
QString dataCopy(data);
if (!dataCopy.startsWith('M', Qt::CaseInsensitive)) {
dataCopy.prepend('M');
}
while (dataCopy.at(dataCopy.length() - 1).isSpace()) {
dataCopy.remove(dataCopy.length() - 1, 1);
}
QChar last = dataCopy.at(dataCopy.length() - 1);
if (last != 'z' && last != 'Z' && last != SVGPathLexer::FakeClosePathChar) {
dataCopy.append(SVGPathLexer::FakeClosePathChar);
}
SVGPathLexer lexer(dataCopy);
SVGPathParser parser;
if (!parser.parse(lexer)) {
//DebugDialog::debug(QString("svg path parse failed %1").arg(dataCopy));
return emptyStack;
}
return parser.symStack();
}
bool SvgFileSplitter::parsePath(const QString & dataString, const char * slot, PathUserData & pathUserData, QObject * slotTarget, bool convertHV) {
QVector<QVariant> symStack = simpleParsePath(dataString);
if (convertHV && (dataString.contains("h", Qt::CaseInsensitive) || dataString.contains("v", Qt::CaseInsensitive)))
{
SVGPathRunner svgPathRunner;
HVConvertData data;
data.x = data.y = data.subX = data.subY = 0;
data.path = "";
connect(&svgPathRunner, SIGNAL(commandSignal(QChar, bool, QList<double> &, void *)),
this, SLOT(convertHVSlot(QChar, bool, QList<double> &, void *)),
Qt::DirectConnection);
svgPathRunner.runPath(symStack, &data);
return parsePath(data.path, slot, pathUserData, slotTarget, false);
}
SVGPathRunner svgPathRunner;
connect(&svgPathRunner, SIGNAL(commandSignal(QChar, bool, QList<double> &, void *)), slotTarget, slot, Qt::DirectConnection);
return svgPathRunner.runPath(symStack, &pathUserData);
}
void SvgFileSplitter::convertHVSlot(QChar command, bool /* relative */, QList<double> & args, void * userData) {
auto * data = (HVConvertData *) userData;
switch(command.toLatin1()) {
case 'M':
data->path.append(command);
for (int i = 0; i < args.count(); i += 2) {
data->x = data->subX = args[i];
data->y = data->subY = args[i + 1];
appendPair(data->path, args[i], args[i + 1]);
}
data->path.chop(1);
break;
case 'm':
data->path.append(command);
if (args.count() > 1) {
data->subX = data->x + args[0];
data->subY = data->y + args[1];
}
for (int i = 0; i < args.count(); i += 2) {
data->x += args[i];
data->y += args[i + 1];
appendPair(data->path, args[i], args[i + 1]);
}
data->path.chop(1);
break;
case 'L':
case 'T':
data->path.append(command);
for (int i = 0; i < args.count(); i += 2) {
data->x = args[i];
data->y = args[i + 1];
appendPair(data->path, args[i], args[i + 1]);
}
data->path.chop(1);
break;
case 'l':
case 't':
data->path.append(command);
for (int i = 0; i < args.count(); i += 2) {
data->x += args[i];
data->y += args[i + 1];
appendPair(data->path, args[i], args[i + 1]);
}
data->path.chop(1);
break;
case 'C':
data->path.append(command);
for (int i = 0; i < args.count(); i += 6) {
data->x = args[i + 4];
data->y = args[i + 5];
appendPair(data->path, args[i], args[i + 1]);
appendPair(data->path, args[i + 2], args[i + 3]);
appendPair(data->path, args[i + 4], args[i + 5]);
}
data->path.chop(1);
break;
case 'c':
data->path.append(command);
for (int i = 0; i < args.count(); i += 6) {
data->x += args[i + 4];
data->y += args[i + 5];
appendPair(data->path, args[i], args[i + 1]);
appendPair(data->path, args[i + 2], args[i + 3]);
appendPair(data->path, args[i + 4], args[i + 5]);
}
data->path.chop(1);
break;
case 'S':
case 'Q':
data->path.append(command);
for (int i = 0; i < args.count(); i += 4) {
data->x = args[i + 2];
data->y = args[i + 3];
appendPair(data->path, args[i], args[i + 1]);
appendPair(data->path, args[i + 2], args[i + 3]);
}
data->path.chop(1);
break;
case 's':
case 'q':
data->path.append(command);
for (int i = 0; i < args.count(); i += 4) {
data->x += args[i + 2];
data->y += args[i + 3];
appendPair(data->path, args[i], args[i + 1]);
appendPair(data->path, args[i + 2], args[i + 3]);