static boost::python::tuple
getinitargs(const shield_symbolizer& s)
{
std::string filename = path_processor_type::to_string(*s.get_filename());
//(name, font name, font size, font color, image file, image type, width, height)
return boost::python::make_tuple( "TODO",//s.get_name(),
s.get_face_name(),s.get_text_size(),s.get_fill(),filename,guess_type(filename));
}
void grid_renderer<T>::process(shield_symbolizer const& sym,
mapnik::feature_impl & feature,
proj_transform const& prj_trans)
{
shield_symbolizer_helper<face_manager<freetype_engine>,
label_collision_detector4> helper(
sym, feature, prj_trans,
width_, height_,
scale_factor_,
t_, font_manager_, *detector_,
query_extent_);
bool placement_found = false;
text_renderer<T> ren(pixmap_,
font_manager_,
sym.get_halo_rasterizer(),
sym.comp_op(),
scale_factor_);
text_placement_info_ptr placement;
while (helper.next())
{
placement_found = true;
placements_type const& placements = helper.placements();
for (unsigned int ii = 0; ii < placements.size(); ++ii)
{
// get_marker_position returns (minx,miny) corner position,
// while (currently only) agg_renderer::render_marker newly
// expects center position;
// until all renderers and shield_symbolizer_helper are
// modified accordingly, we must adjust the position here
pixel_position pos = helper.get_marker_position(placements[ii]);
pos.x += 0.5 * helper.get_marker_width();
pos.y += 0.5 * helper.get_marker_height();
render_marker(feature,
pixmap_.get_resolution(),
pos,
helper.get_marker(),
helper.get_image_transform(),
sym.get_opacity(),
sym.comp_op());
ren.prepare_glyphs(placements[ii]);
ren.render_id(feature.id(), placements[ii].center);
}
}
if (placement_found)
pixmap_.add_feature(feature);
}
void grid_renderer<T>::process(shield_symbolizer const& sym,
mapnik::feature_ptr const& feature,
proj_transform const& prj_trans)
{
box2d<double> query_extent;
shield_symbolizer_helper<face_manager<freetype_engine>,
label_collision_detector4> helper(
sym, *feature, prj_trans,
width_, height_,
scale_factor_,
t_, font_manager_, detector_, query_extent);
bool placement_found = false;
text_renderer<T> ren(pixmap_, font_manager_, *(font_manager_.get_stroker()));
text_placement_info_ptr placement;
while (helper.next()) {
placement_found = true;
placements_type &placements = helper.placements();
for (unsigned int ii = 0; ii < placements.size(); ++ii)
{
render_marker(feature, pixmap_.get_resolution(),
helper.get_marker_position(placements[ii]),
helper.get_marker(), helper.get_transform(),
sym.get_opacity());
ren.prepare_glyphs(&(placements[ii]));
ren.render_id(feature->id(), placements[ii].center, 2);
}
}
if (placement_found)
pixmap_.add_feature(feature);
}
// TODO add lots more...
static void
setstate (shield_symbolizer& s, boost::python::tuple state)
{
using namespace boost::python;
/*if (len(state) != 1)
{
PyErr_SetObject(PyExc_ValueError,
("expected 1-item tuple in call to __setstate__; got %s"
% state).ptr()
);
throw_error_already_set();
}*/
s.set_halo_fill(extract<color>(state[0]));
s.set_halo_radius(extract<float>(state[1]));
}
void operator () (shield_symbolizer const& sym)
{
expression_set::const_iterator it;
expression_set expressions;
sym.get_placement_options()->add_expressions(expressions);
for (it=expressions.begin(); it != expressions.end(); it++)
{
if (*it) boost::apply_visitor(f_attr, **it);
}
path_expression_ptr const& filename_expr = sym.get_filename();
if (filename_expr)
{
path_processor_type::collect_attributes(*filename_expr,names_);
}
collect_transform(sym.get_image_transform());
collect_transform(sym.get_transform());
}
void agg_renderer<T>::process(shield_symbolizer const& sym,
mapnik::feature_impl & feature,
proj_transform const& prj_trans)
{
shield_symbolizer_helper<face_manager<freetype_engine>,
label_collision_detector4> helper(
sym, feature, prj_trans,
width_, height_,
scale_factor_,
t_, font_manager_, *detector_, query_extent_);
text_renderer<T> ren(*current_buffer_, font_manager_, *(font_manager_.get_stroker()));
while (helper.next()) {
placements_type &placements = helper.placements();
for (unsigned int ii = 0; ii < placements.size(); ++ii)
{
// get_marker_position returns (minx,miny) corner position,
// while (currently only) agg_renderer::render_marker newly
// expects center position;
// until all renderers and shield_symbolizer_helper are
// modified accordingly, we must adjust the position here
pixel_position pos = helper.get_marker_position(placements[ii]);
pos.x += 0.5 * helper.get_marker_width();
pos.y += 0.5 * helper.get_marker_height();
render_marker(pos,
helper.get_marker(),
helper.get_image_transform(),
sym.get_opacity(),
sym.comp_op());
ren.prepare_glyphs(&(placements[ii]));
ren.render(placements[ii].center);
}
}
}
void agg_renderer<T>::process(shield_symbolizer const& sym,
mapnik::feature_impl & feature,
proj_transform const& prj_trans)
{
for (std::list<feature_ptr>::iterator f = featureList_->begin(); f != featureList_->end(); f++) {
feature_ptr featurePtr = *f;
shield_symbolizer_helper<face_manager<freetype_engine>,
label_collision_detector4> helper(
sym, *featurePtr, prj_trans,
width_, height_,
scale_factor_,
t_, font_manager_, *detector_,
query_extent_);
text_renderer<T> ren(*current_buffer_,
font_manager_,
*(font_manager_.get_stroker()),
sym.comp_op(),
scale_factor_);
while (helper.next())
{
placements_type const& placements = helper.placements();
for (unsigned int ii = 0; ii < placements.size(); ++ii)
{
// get_marker_position returns (minx,miny) corner position,
// while (currently only) agg_renderer::render_marker newly
// expects center position;
// until all renderers and shield_symbolizer_helper are
// modified accordingly, we must adjust the position here
pixel_position pos = helper.get_marker_position(placements[ii]);
// pos.x += 0.5 * helper.get_marker_width();
// pos.y += 0.5 * helper.get_marker_height();
// render_marker(pos,
// helper.get_marker(),
// helper.get_image_transform(),
// sym.get_opacity(),
// sym.comp_op());
marker const& marker_ = helper.get_marker();
image_data_32 const& src = **marker_.get_bitmap_data();
double width = src.width();
double height = src.height();
const double shifted = 0;
double markerX = pos.x + shifted, markerY = height_ - pos.y - shifted - height;
glMatrixLoadIdentityEXT(GL_PROJECTION);
glMatrixOrthoEXT(GL_PROJECTION, 0, width_, height_, 0, -1, 1);
glMatrixLoadIdentityEXT(GL_MODELVIEW);
GLubyte cmd[5];
GLfloat coord[8];
int m = 0, n = 0;
cmd[m++] = GL_MOVE_TO_NV;
coord[n++] = markerX;
coord[n++] = markerY;
cmd[m++] = GL_LINE_TO_NV;
coord[n++] = markerX + width;
coord[n++] = markerY;
cmd[m++] = GL_LINE_TO_NV;
coord[n++] = markerX + width;
coord[n++] = markerY + height;
cmd[m++] = GL_LINE_TO_NV;
coord[n++] = markerX;
coord[n++] = markerY + height;
cmd[m++] = GL_CLOSE_PATH_NV;
glPathCommandsNV(pathObject_, m, cmd, n, GL_FLOAT, coord);
// glStencilFunc(GL_NOTEQUAL, 0, 0x1F);
// glStencilOp(GL_KEEP, GL_KEEP, GL_ZERO);
//makeFaceTexture(TEXTURE_FACE);
static GLuint texName;
glGenTextures(1, &texName);
glBindTexture(GL_TEXTURE_2D, texName);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE);
glTexParameteri(GL_TEXTURE_2D, GL_GENERATE_MIPMAP, GL_TRUE);
glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA8, width, height, 0,
GL_RGBA, GL_UNSIGNED_BYTE, (unsigned char *)src.getBytes());
glTexEnvi(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_REPLACE);
GLfloat data[2][3] = { { 1,0,0 }, /* s = 1*x + 0*y + 0 */
{ 0,1,0 } }; /* t = 0*x + 1*y + 0 */
//glEnable(GL_STENCIL_TEST);
//glColor3f(1,1,1);
glEnable(GL_TEXTURE_2D);
glPathTexGenNV(GL_TEXTURE0, GL_PATH_OBJECT_BOUNDING_BOX_NV, 2, &data[0][0]);
glStencilFillPathNV(pathObject_, GL_COUNT_UP_NV, 0x1F);
glCoverFillPathNV(pathObject_, GL_BOUNDING_BOX_NV);
glDisable(GL_TEXTURE_2D);
pathObject_++;
//Text rendering
//ren.prepare_glyphs(placements[ii]);
//ren.render(placements[ii].center);
const int size = placements[ii].num_nodes();
int strokeEnable = 0;
char word[size];
unsigned red,green,blue,alpha;
double textWidth = 0;
double textHeight = 0;
color textColor,strokeColor;
double opacity = 0.0;
for (int i = 0; i < placements[ii].num_nodes(); i++)
{
char_info_ptr c;
double x, y, angle;
placements[ii].vertex(&c, &x, &y, &angle);
word[i] = (char)c->c;
textWidth += c->width;
textHeight = c->height();
double halo_radius = c->format->halo_radius;
if (halo_radius > 0.0 && halo_radius < 1024.0){
strokeEnable = 1;
// red = c->format->halo_fill.red();
// green = c->format->halo_fill.green();
// blue = c->format->halo_fill.blue();
// alpha = c->format->halo_fill.alpha();
strokeColor = c->format->halo_fill;
}
textColor = c->format->fill;
opacity = c->format->text_opacity;
}
double posX = placements[ii].center.x, posY = placements[ii].center.y;
int centerText = textWidth / 2;
double posTextY = height_ - markerY - (height)/2;
double posTextX = posX - centerText;
if(posTextY <= height_ / 2) posTextY -= 5;
if(posTextX >= width_ / 2) posTextX += 5;
if(!strokeEnable){
render_text(size, word, posTextX, posTextY,textColor, opacity);
}
if(strokeEnable){
render_text(size, word, posTextX, posTextY,textColor,strokeColor,opacity);
}
}
}
}
}
static boost::python::tuple
getstate(const shield_symbolizer& s)
{
return boost::python::make_tuple(s.get_halo_fill(),s.get_halo_radius());
}
void agg_renderer<T>::process(shield_symbolizer const& sym,
Feature const& feature,
proj_transform const& prj_trans)
{
typedef coord_transform2<CoordTransform,geometry_type> path_type;
text_placement_info_ptr placement_options = sym.get_placement_options()->get_placement_info();
placement_options->next();
placement_options->next_position_only();
UnicodeString text;
if( sym.get_no_text() )
text = UnicodeString( " " ); // TODO: fix->use 'space' as the text to render
else
{
expression_ptr name_expr = sym.get_name();
if (!name_expr) return;
value_type result = boost::apply_visitor(evaluate<Feature,value_type>(feature),*name_expr);
text = result.to_unicode();
}
if ( sym.get_text_transform() == UPPERCASE)
{
text = text.toUpper();
}
else if ( sym.get_text_transform() == LOWERCASE)
{
text = text.toLower();
}
else if ( sym.get_text_transform() == CAPITALIZE)
{
text = text.toTitle(NULL);
}
agg::trans_affine tr;
boost::array<double,6> const& m = sym.get_transform();
tr.load_from(&m[0]);
std::string filename = path_processor_type::evaluate( *sym.get_filename(), feature);
boost::optional<mapnik::marker_ptr> marker;
if ( !filename.empty() )
{
marker = marker_cache::instance()->find(filename, true);
}
else
{
marker.reset(boost::make_shared<mapnik::marker>());
}
if (text.length() > 0 && marker)
{
int w = (*marker)->width();
int h = (*marker)->height();
double px0 = - 0.5 * w;
double py0 = - 0.5 * h;
double px1 = 0.5 * w;
double py1 = 0.5 * h;
double px2 = px1;
double py2 = py0;
double px3 = px0;
double py3 = py1;
tr.transform(&px0,&py0);
tr.transform(&px1,&py1);
tr.transform(&px2,&py2);
tr.transform(&px3,&py3);
box2d<double> label_ext (px0, py0, px1, py1);
label_ext.expand_to_include(px2, py2);
label_ext.expand_to_include(px3, py3);
face_set_ptr faces;
if (sym.get_fontset().size() > 0)
{
faces = font_manager_.get_face_set(sym.get_fontset());
}
else
{
faces = font_manager_.get_face_set(sym.get_face_name());
}
stroker_ptr strk = font_manager_.get_stroker();
if (strk && faces->size() > 0)
{
text_renderer<T> ren(pixmap_, faces, *strk);
ren.set_pixel_size(sym.get_text_size() * scale_factor_);
ren.set_fill(sym.get_fill());
ren.set_halo_fill(sym.get_halo_fill());
ren.set_halo_radius(sym.get_halo_radius() * scale_factor_);
ren.set_opacity(sym.get_text_opacity());
placement_finder<label_collision_detector4> finder(detector_);
string_info info(text);
faces->get_string_info(info);
metawriter_with_properties writer = sym.get_metawriter();
for (unsigned i = 0; i < feature.num_geometries(); ++i)
{
geometry_type const& geom = feature.get_geometry(i);
if (geom.num_points() > 0 )
{
path_type path(t_,geom,prj_trans);
label_placement_enum how_placed = sym.get_label_placement();
if (how_placed == POINT_PLACEMENT || how_placed == VERTEX_PLACEMENT || how_placed == INTERIOR_PLACEMENT)
{
// for every vertex, try and place a shield/text
geom.rewind(0);
placement text_placement(info, sym, scale_factor_, w, h, false);
text_placement.avoid_edges = sym.get_avoid_edges();
text_placement.allow_overlap = sym.get_allow_overlap();
if (writer.first)
text_placement.collect_extents =true; // needed for inmem metawriter
position const& pos = sym.get_displacement();
position const& shield_pos = sym.get_shield_displacement();
for( unsigned jj = 0; jj < geom.num_points(); jj++ )
{
double label_x;
double label_y;
double z=0.0;
if( how_placed == VERTEX_PLACEMENT )
geom.vertex(&label_x,&label_y); // by vertex
else if( how_placed == INTERIOR_PLACEMENT )
geom.label_interior_position(&label_x,&label_y);
else
geom.label_position(&label_x, &label_y); // by middle of line or by point
prj_trans.backward(label_x,label_y, z);
t_.forward(&label_x,&label_y);
label_x += boost::get<0>(shield_pos);
label_y += boost::get<1>(shield_pos);
finder.find_point_placement( text_placement, placement_options,
label_x, label_y, 0.0,
sym.get_line_spacing(),
sym.get_character_spacing());
// check to see if image overlaps anything too, there is only ever 1 placement found for points and verticies
if( text_placement.placements.size() > 0)
{
double x = floor(text_placement.placements[0].starting_x);
double y = floor(text_placement.placements[0].starting_y);
int px;
int py;
if( !sym.get_unlock_image() )
{
// center image at text center position
// remove displacement from image label
double lx = x - boost::get<0>(pos);
double ly = y - boost::get<1>(pos);
px=int(floor(lx - (0.5 * w))) + 1;
py=int(floor(ly - (0.5 * h))) + 1;
label_ext.re_center(lx,ly);
}
else
{ // center image at reference location
px=int(floor(label_x - 0.5 * w));
py=int(floor(label_y - 0.5 * h));
label_ext.re_center(label_x,label_y);
}
if ( sym.get_allow_overlap() || detector_.has_placement(label_ext) )
{
render_marker(px,py,**marker,tr,sym.get_opacity());
box2d<double> dim = ren.prepare_glyphs(&text_placement.placements[0]);
ren.render(x,y);
detector_.insert(label_ext);
finder.update_detector(text_placement);
if (writer.first) {
writer.first->add_box(label_ext, feature, t_, writer.second);
writer.first->add_text(text_placement, faces, feature, t_, writer.second);
}
}
}
}
}
else if (geom.num_points() > 1 && how_placed == LINE_PLACEMENT)
{
placement text_placement(info, sym, scale_factor_, w, h, false);
position const& pos = sym.get_displacement();
text_placement.avoid_edges = sym.get_avoid_edges();
text_placement.additional_boxes.push_back(
box2d<double>(-0.5 * label_ext.width() - boost::get<0>(pos),
-0.5 * label_ext.height() - boost::get<1>(pos),
0.5 * label_ext.width() - boost::get<0>(pos),
0.5 * label_ext.height() - boost::get<1>(pos)));
finder.find_point_placements<path_type>(text_placement, placement_options, path);
for (unsigned int ii = 0; ii < text_placement.placements.size(); ++ ii)
{
double x = floor(text_placement.placements[ii].starting_x);
double y = floor(text_placement.placements[ii].starting_y);
double lx = x - boost::get<0>(pos);
double ly = y - boost::get<1>(pos);
int px=int(floor(lx - (0.5*w))) + 1;
int py=int(floor(ly - (0.5*h))) + 1;
label_ext.re_center(lx, ly);
render_marker(px,py,**marker,tr,sym.get_opacity());
box2d<double> dim = ren.prepare_glyphs(&text_placement.placements[ii]);
ren.render(x,y);
if (writer.first) writer.first->add_box(label_ext, feature, t_, writer.second);
}
finder.update_detector(text_placement);
if (writer.first) writer.first->add_text(text_placement, faces, feature, t_, writer.second);
}
}
}
}
}
}
