void esvg::Document::generateAnImage(int32_t _sizeX, int32_t _sizeY)
{
int32_t sizeX = _sizeX;
if (sizeX == 0) {
SVG_ERROR("SizeX == 0 ==> set 64");
sizeX = 64;
}
int32_t sizeY = _sizeY;
if (sizeY == 0) {
SVG_ERROR("SizeY == 0 ==> set 64");
sizeY = 64;
}
SVG_INFO("Generate size (" << sizeX << "," << sizeY << ")");
if(NULL != m_renderedElement) {
delete(m_renderedElement);
m_renderedElement = NULL;
}
m_renderedElement = new esvg::Renderer(sizeX, sizeY);
// create the first element matrix modification ...
agg::trans_affine basicTrans;
//basicTrans *= agg::trans_affine_translation(-g_base_dx, -g_base_dy);
basicTrans *= agg::trans_affine_scaling(sizeX/m_size.x(), sizeY/m_size.y());
//basicTrans *= agg::trans_affine_rotation(g_angle);// + agg::pi);
//basicTrans *= agg::trans_affine_skewing(2.0, 5.0);
//basicTrans *= agg::trans_affine_translation(width*0.3, height/2);
//basicTrans *= agg::trans_affine_translation(width/3, height/3);
aggDraw(*m_renderedElement, basicTrans);
/*
std::string tmpFileOut = "zzz_out_test.ppm";
m_renderedElement->WritePpm(tmpFileOut);
*/
}
esvg::Renderer::Renderer(uint32_t width, uint32_t height) {
m_allocatedSize = 0;
m_size.setValue(width, height);
int32_t dataSize = ((int32_t)width * (int32_t)height * DATA_ALLOCATION_ELEMENT);
m_allocatedSize = dataSize;
// allocate Data
SVG_VERBOSE("Allocate buffer : " << dataSize);
m_buffer = new uint8_t[dataSize];
if (NULL == m_buffer) {
SVG_ERROR("Allocation of the output buffer for SVG drawing error");
m_allocatedSize = 0;
return;
}
memset(m_buffer, 0x00, dataSize * sizeof(uint8_t) );
m_renderingBuffer = new agg::rendering_buffer(m_buffer, m_size.x(), m_size.y(), m_size.x() * DATA_ALLOCATION_ELEMENT);
if (NULL == m_renderingBuffer) {
SVG_ERROR("Allocation of the m_renderingBuffer for SVG drawing error");
return;
}
m_pixFrame = new agg::pixfmt_rgba32(*m_renderingBuffer);
if (NULL == m_pixFrame) {
SVG_ERROR("Allocation of the m_pixFrame for SVG drawing error");
return;
}
m_renderBase = new rendererBase_t(*m_pixFrame);
if (NULL == m_renderBase) {
SVG_ERROR("Allocation of the m_renderBase for SVG drawing error");
return;
}
m_renderArea = new rendererSolid_t(*m_renderBase);
if (NULL == m_renderArea) {
SVG_ERROR("Allocation of the m_renderArea for SVG drawing error");
return;
}
//m_basicMatrix *= agg::trans_affine_translation(-g_base_dx2, -g_base_dy2);
//m_basicMatrix *= agg::trans_affine_scaling(g_scale*coefmult, g_scale*coefmult);
//m_basicMatrix *= agg::trans_affine_rotation(g_angle);// + agg::pi);
//m_basicMatrix *= agg::trans_affine_skewing(g_skew_x/1000.0, g_skew_y/1000.0);
//m_basicMatrix *= agg::trans_affine_translation(m_size.x*0.7, m_size.y/2);
}
svg_status_t
_svg_group_drop_element (svg_group_t *group, svg_element_t *element) {
int k;
if(group->element == NULL) {
SVG_ERROR("group %p has a NULL pointer for an element buffer. num_elements is %d\n",
group, group->num_elements);
exit(0);
}
SVG_DEBUG(" will scan for %p in %d number of elements....\n", element, group->num_elements);
for(k = 0; k < group->num_elements; k++) {
SVG_DEBUG(" compare: %p == %p ?\n", group->element[k], element);
if(group->element[k] == element) {
SVG_DEBUG(" matched! will dereference %p\n", element);
_svg_element_dereference(element);
element->parent = NULL;
group->num_elements--;
for(; k < group->num_elements; k++) {
group->element[k] =
group->element[k + 1];
}
group->element[k] = NULL;
return SVG_STATUS_SUCCESS;
}
}
return SVG_STATUS_NO_SUCH_ELEMENT;
}
esvg::Document::Document(const std::string& _fileName) :
m_renderedElement(nullptr) {
m_fileName = _fileName;
m_version = "0.0";
m_loadOK = true;
m_paint.fill = (int32_t)0xFF0000FF;
m_paint.stroke = (int32_t)0xFFFFFF00;
m_paint.strokeWidth = 1.0;
m_paint.viewPort.setValue(255,255);
m_paint.flagEvenOdd = false;
m_paint.lineJoin = esvg::lineJoinMiter;
m_paint.lineCap = esvg::lineCapButt;
m_size.setValue(0,0);
exml::Document doc;
if (false == doc.load(m_fileName)) {
SVG_ERROR("Error occured when loading XML : " << m_fileName);
m_loadOK = false;
return;
}
if (0 == doc.size() ) {
SVG_ERROR("(l ?) No nodes in the xml file ... \"" << m_fileName << "\"");
m_loadOK = false;
return;
}
std::shared_ptr<exml::Element> root = doc.getNamed("svg" );
if (root == nullptr) {
SVG_ERROR("(l ?) main node not find: \"svg\" in \"" << m_fileName << "\"");
m_loadOK = false;
return;
}
// get the svg version :
m_version = root->getAttribute("version");
// parse ...
vec2 pos(0,0);
parseTransform(root);
parsePosition(root, pos, m_size);
parsePaintAttr(root);
SVG_VERBOSE("parsed .ROOT trans : (" << m_transformMatrix.sx << "," << m_transformMatrix.shy << "," << m_transformMatrix.shx << "," << m_transformMatrix.sy << "," << m_transformMatrix.tx << "," << m_transformMatrix.ty << ")");
vec2 maxSize(0,0);
vec2 size(0,0);
// parse all sub node :
for(int32_t iii=0; iii< root->size(); iii++) {
std::shared_ptr<exml::Element> child = root->getElement(iii);
if (child == nullptr) {
// comment trsh here...
continue;
}
esvg::Base *elementParser = nullptr;
if (child->getValue() == "g") {
elementParser = new esvg::Group(m_paint);
} else if (child->getValue() == "a") {
SVG_INFO("Note : 'a' balise is parsed like a g balise ...");
elementParser = new esvg::Group(m_paint);
} else if (child->getValue() == "title") {
m_title = "TODO : set the title here ...";
continue;
} else if (child->getValue() == "path") {
elementParser = new esvg::Path(m_paint);
} else if (child->getValue() == "rect") {
elementParser = new esvg::Rectangle(m_paint);
} else if (child->getValue() == "circle") {
elementParser = new esvg::Circle(m_paint);
} else if (child->getValue() == "ellipse") {
elementParser = new esvg::Ellipse(m_paint);
} else if (child->getValue() == "line") {
elementParser = new esvg::Line(m_paint);
} else if (child->getValue() == "polyline") {
elementParser = new esvg::Polyline(m_paint);
} else if (child->getValue() == "polygon") {
elementParser = new esvg::Polygon(m_paint);
} else if (child->getValue() == "text") {
elementParser = new esvg::Text(m_paint);
} else if (child->getValue() == "defs") {
// Node ignore : must implement it later ...
continue;
} else if (child->getValue() == "sodipodi:namedview") {
// Node ignore : generaly inkscape data
continue;
} else if (child->getValue() == "metadata") {
// Node ignore : generaly inkscape data
continue;
} else {
SVG_ERROR("(l "<<child->getPos()<<") node not suported : \""<<child->getValue()<<"\" must be [title,g,a,path,rect,circle,ellipse,line,polyline,polygon,text,metadata]");
}
if (NULL == elementParser) {
SVG_ERROR("(l "<<child->getPos()<<") error on node: \""<<child->getValue()<<"\" allocation error or not supported ...");
continue;
}
if (false == elementParser->parse(child, m_transformMatrix, size)) {
SVG_ERROR("(l "<<child->getPos()<<") error on node: \""<<child->getValue()<<"\" Sub Parsing ERROR");
delete(elementParser);
elementParser = NULL;
continue;
}
if (maxSize.x()<size.x()) {
maxSize.setX(size.x());
}
if (maxSize.y()<size.y()) {
maxSize.setY(size.y());
}
// add element in the system
m_subElementList.push_back(elementParser);
}
if (m_size.x() == 0 || m_size.y()==0) {
m_size.setValue((int32_t)maxSize.x(), (int32_t)maxSize.y());
} else {
m_size.setValue((int32_t)m_size.x(), (int32_t)m_size.y());
}
//DisplayDebug();
}