static Position create_position(int size, int offset) {
Position new_position;
new_position.A4 = add_marker(offset,120,size,8);
new_position.A3 = add_marker(offset,129,size,8);
new_position.A2 = add_marker(offset,138,size,8);
new_position.A1 = add_marker(offset,147,size,8);
new_position.A0 = add_marker(offset,156,size,8);
new_position.B4 = add_marker(offset + size,120,size,8);
new_position.B3 = add_marker(offset + size,129,size,8);
new_position.B2 = add_marker(offset + size,138,size,8);
new_position.B1 = add_marker(offset + size,147,size,8);
new_position.B0 = add_marker(offset + size,156,size,8);
return new_position;
}
void decoration_formatter::format_preamble(
std::ostream& s, const comment_styles& single_line_cs,
const comment_styles& multi_line_cs,
const decoration_properties& dc) const {
bool is_top(false);
const auto top(modeline_locations::top);
bool has_modeline(dc.modeline());
std::list<std::string> content;
if (has_modeline) {
is_top = dc.modeline()->location() == top;
if (is_top)
add_modeline(content, *dc.modeline());
}
add_marker(content, dc.code_generation_marker());
if (dc.licence())
add_licence(content, *dc.licence());
if (content.empty())
return;
if (has_modeline && is_top && content.size() == 1) {
comment_formatter cf(
start_on_first_line,
!use_documentation_tool_markup,
!documenting_previous_identifier,
single_line_cs,
!last_line_is_blank);
cf.format(s, content, !line_between_blocks);
} else {
comment_formatter cf(
is_top ? start_on_first_line : !start_on_first_line,
!use_documentation_tool_markup,
!documenting_previous_identifier,
multi_line_cs,
last_line_is_blank);
cf.format(s, content, line_between_blocks);
}
}
static GtkTreeIter
add_placemark (PlacemarksPlugin *plugin,
const gchar *id,
const gchar *name,
gfloat lat,
gfloat lon,
gint zoom)
{
gchar *lat_str, *lon_str, *zoom_str;
GtkTreeIter iter;
PlacemarksPluginPrivate *priv;
ChamplainMarker *marker;
priv = PLACEMARKS_PLUGIN (plugin)->priv;
lat_str = g_strdup_printf ("%f", lat);
lon_str = g_strdup_printf ("%f", lon);
zoom_str = g_strdup_printf ("%d", zoom);
marker = add_marker (plugin, name, lat, lon);
gtk_list_store_append (GTK_LIST_STORE (priv->model), &iter);
gtk_list_store_set (GTK_LIST_STORE (priv->model), &iter,
COL_ID, id,
COL_NAME, name,
COL_LAT, lat,
COL_LAT_STR, lat_str,
COL_LON, lon,
COL_LON_STR, lon_str,
COL_ZOOM, zoom,
COL_ZOOM_STR, zoom_str,
COL_MARKER, marker,
-1);
g_free (lat_str);
g_free (lon_str);
g_free (zoom_str);
priv->placemark_count++;
return iter;
}
void HaiQTextEdit::toggle_marker(int marker_type,QString path) {
bool markers_changed=false;
QTextCursor cursor=textCursor();
QTextBlock block=cursor.block();
defaultedit_blockdata *block_data=(defaultedit_blockdata *)block.userData();
if (!block_data) {
block_data=new defaultedit_blockdata;
block.setUserData(block_data);
}
if (block_data->has_marker(marker_type)) {
block_data->remove_markers_of_type(marker_type);
markers_changed=true;
}
else {
haiq_marker marker;
marker.path=path;
marker.marker_type=marker_type;
marker.line_number=textCursor().blockNumber()+1;
set_random_id(marker);
add_marker(marker);
}
do_marker_highlighting(cursor);
if (markers_changed) emit markersChanged();
}
bool placement_finder::find_point_placement(pixel_position const& pos)
{
glyph_positions_ptr glyphs = std::make_shared<glyph_positions>();
std::vector<box2d<double> > bboxes;
glyphs->reserve(layouts_.glyphs_count());
bboxes.reserve(layouts_.size());
bool base_point_set = false;
for (auto const& layout_ptr : layouts_)
{
text_layout const& layout = *layout_ptr;
rotation const& orientation = layout.orientation();
// Find text origin.
pixel_position layout_center = pos + layout.displacement();
if (!base_point_set)
{
glyphs->set_base_point(layout_center);
base_point_set = true;
}
box2d<double> bbox = layout.bounds();
bbox.re_center(layout_center.x, layout_center.y);
/* For point placements it is faster to just check the bounding box. */
if (collision(bbox, layouts_.text(), false)) return false;
if (layout.num_lines()) bboxes.push_back(std::move(bbox));
pixel_position layout_offset = layout_center - glyphs->get_base_point();
layout_offset.y = -layout_offset.y;
// IMPORTANT NOTE:
// x and y are relative to the center of the text
// coordinate system:
// x: grows from left to right
// y: grows from bottom to top (opposite of normal computer graphics)
double x, y;
// set for upper left corner of text envelope for the first line, top left of first character
y = layout.height() / 2.0;
for ( auto const& line : layout)
{
y -= line.height(); //Automatically handles first line differently
x = layout.jalign_offset(line.width());
for (auto const& glyph : line)
{
// place the character relative to the center of the string envelope
glyphs->emplace_back(glyph, (pixel_position(x, y).rotate(orientation)) + layout_offset, orientation);
if (glyph.advance())
{
//Only advance if glyph is not part of a multiple glyph sequence
x += glyph.advance() + glyph.format->character_spacing * scale_factor_;
}
}
}
}
// add_marker first checks for collision and then updates the detector.
if (has_marker_ && !add_marker(glyphs, pos)) return false;
for (box2d<double> const& bbox : bboxes)
{
detector_.insert(bbox, layouts_.text());
}
placements_.push_back(glyphs);
return true;
}
pulsesequence()
{
/* declaration of SGL kernel structures */
SGL_KERNEL_INFO_T read, phase, slice, ss_pre, ss_post;
/* declaration of internal variables */
double freqlist[MAXNSLICE];
double pe_steps;
int shapelist1, table;
double xtime, grad_duration, ror_pad,rod_pad;
double temp_tr;
double readAmp, phaseAmp, sliceAmp;
double tepad, tepad2, temin2, htrmin, delayToRF, delayRFToAcq, delayAcqToRF;
double rof_pad, delRof;
double sliceRephTrim, sliceDephTrim;
double readRephTrim, readDephTrim;
int rfPhase[2] = {0,2};
/* declaration of realtime variables */
int vpe_steps = v1;
int vpe_ctr = v2;
int vms_slices = v3;
int vms_ctr = v4;
int vpe_offset = v5;
int vpe_index = v6;
int vss = v7;
int vssc = v8;
int vacquire = v9;
int vphase = v10;
settable(t2,2,rfPhase);
/* setup phase encoding order */
table = set_pe_order();
init_mri();
if( (sliceRephTrim = getvalnwarn("sliceRephTrim")) == 0.0 ) {
sliceRephTrim = 1.0;
}
if( (sliceDephTrim = getvalnwarn("sliceDephTrim")) == 0.0 ) {
sliceDephTrim = 1.0;
}
if( (readRephTrim = getvalnwarn("readRephTrim")) == 0.0 ) {
readRephTrim = 1.0;
}
if( (readDephTrim = getvalnwarn("readDephTrim")) == 0.0 ) {
readDephTrim = 1.0;
}
shape_rf( &p1_rf, "p1", p1pat, p1, flip1, rof1, rof2 ); // excitation pulse
init_slice( &ss_grad, "ss", thk ); // slice gradient
init_slice_refocus( &ssr_grad, "ssr" ); // slice refocus
init_slice_refocus( &ssd_grad, "ssd" ); // slice refocus
init_readout( &ro_grad, "ro", lro, np, sw ); // read gradient
init_readout_refocus( &ror_grad, "ror" ); // read dephase
init_readout_refocus( &rod_grad, "ror" ); // read dephase
init_phase( &pe_grad, "pe", lpe, nv ); // phase gradient
ss_grad.maxGrad = gmax * 0.57;
ssr_grad.maxGrad = gmax * 0.57;
ssd_grad.maxGrad = gmax * 0.57;
ro_grad.maxGrad = gmax * 0.57;
ror_grad.maxGrad = gmax * 0.57;
rod_grad.maxGrad = gmax * 0.57;
pe_grad.maxGrad = glimpe < 0.57? gmax*glimpe : gmax * 0.57;
/* calculate the RF pulses, gradient pulses and their interdependencies */
calc_rf( &p1_rf, "tpwr1", "tpwr1f" );
calc_slice( &ss_grad, &p1_rf, NOWRITE, "gss" );
ssr_grad.amp = ss_grad.amp;
ssr_grad.gmult = sliceRephTrim;
ssr_grad.calcFlag = DURATION_FROM_MOMENT_AMPLITUDE;
calc_slice_refocus( &ssr_grad, &ss_grad, NOWRITE, "gssr" );
ssd_grad.amp = ss_grad.amp;
ssd_grad.gmult = sliceDephTrim;
ssd_grad.calcFlag = DURATION_FROM_MOMENT_AMPLITUDE;
calc_slice_dephase( &ssd_grad, &ss_grad, NOWRITE, "gssd" );
calc_readout( &ro_grad, NOWRITE, "gro", "sw", "at" );
ror_grad.amp = ro_grad.amp;
ror_grad.calcFlag = DURATION_FROM_MOMENT_AMPLITUDE;
rod_grad.amp = ro_grad.amp;
rod_grad.calcFlag = DURATION_FROM_MOMENT_AMPLITUDE;
ror_grad.gmult = readRephTrim;
calc_readout_refocus( &ror_grad, &ro_grad, NOWRITE, "gror" );
rod_grad.gmult = readDephTrim;
calc_readout_rephase( &rod_grad, &ro_grad, NOWRITE, "grod" );
calc_phase( &pe_grad, NOWRITE, "gpe", "tpe" );
/* work out the position of the markers */
/* markerA */
/* ss_grad.rfDelayFront indicates the starting point of the
RF pulse measured from the start of the slice gradient
( rof1:pulse length:rof2 ) */
double granulatedRFDelayFront = granularity( ss_grad.rfDelayFront, GRADIENT_RES );
if( granulatedRFDelayFront > ss_grad.rfDelayFront ) {
granulatedRFDelayFront -= GRADIENT_RES;
}
/* ss_grad.rfDelayBack indicates the end point of the
RF pulse measured to the end of the slice gradient
( rof1:pulse length:rof2 ) */
double granulatedRFDelayBack = granularity( ss_grad.rfDelayBack, GRADIENT_RES );
if( granulatedRFDelayBack > ss_grad.rfDelayBack ) {
granulatedRFDelayBack -= GRADIENT_RES;
}
double granulatedRFDelay = granulatedRFDelayFront < granulatedRFDelayBack ? granulatedRFDelayFront : granulatedRFDelayBack;
double markerADelay = granulatedRFDelay;
/* read and phase gradients can overlap the start or end of the slice gradient by max of granulatedRFDElay */
double granulatedATDelayFront = granularity(ro_grad.atDelayFront, GRADIENT_RES);
if( granulatedATDelayFront > ro_grad.atDelayFront ) {
granulatedATDelayFront -= GRADIENT_RES;
}
double granulatedATDelayBack = granularity(ro_grad.atDelayBack, GRADIENT_RES);
if( granulatedATDelayBack > ro_grad.atDelayBack ) {
granulatedATDelayBack -= GRADIENT_RES;
}
double granulatedATDelay = granulatedATDelayFront < granulatedATDelayBack ? granulatedATDelayFront : granulatedATDelayBack;
/* longest gradient between RF pulse and acquire dominates */
xtime = ssr_grad.duration + granulatedRFDelay;
xtime = xtime > ssd_grad.duration + granulatedRFDelay ? xtime : ssd_grad.duration + granulatedRFDelay;
xtime = xtime > ror_grad.duration + granulatedATDelay ? xtime : ror_grad.duration + granulatedATDelay;
xtime = xtime > rod_grad.duration + granulatedATDelay ? xtime : rod_grad.duration + granulatedATDelay;
xtime = xtime > pe_grad.duration ? xtime : pe_grad.duration;
ror_pad = xtime - ror_grad.duration - granulatedATDelay;
rod_pad = xtime - rod_grad.duration - granulatedATDelay;
/* make a gradient list */
start_kernel( &sk );
add_gradient( (void*)&ss_grad, "slice", SLICE, START_TIME, "", 0.0, PRESERVE );
add_gradient( (void*)&ssr_grad, "sliceReph", SLICE, BEHIND, "slice", 0.0, INVERT );
add_gradient( (void*)&ror_grad, "readDeph", READ, BEHIND, "slice", -granulatedRFDelay + ror_pad, INVERT );
add_gradient( (void*)&ro_grad, "read", READ, BEHIND, "readDeph", 0.0, PRESERVE );
add_gradient( (void*)&pe_grad, "phase", PHASE, SAME_START, "readDeph", 0.0, PRESERVE );
add_gradient( (void*)&rod_grad, "readReph", READ, BEHIND, "read", 0.0, INVERT );
add_gradient( (void*)&pe_grad, "rewind", PHASE, SAME_END, "readReph", 0.0, INVERT );
add_gradient( (void*)&ss_grad, "nextSlice", SLICE, BEHIND, "readReph", rod_pad - granulatedRFDelay, PRESERVE );
add_gradient( (void*)&ssd_grad, "sliceDeph", SLICE, BEFORE, "nextSlice", 0, INVERT );
add_marker( "markerA", SAME_START, "slice", granulatedRFDelay );
add_marker( "markerB", SAME_START, "nextSlice", granulatedRFDelay );
/* get the minimum echo time */
temin = get_timing( FROM_RF_CENTER_OF, "slice", TO_ECHO_OF, "read" );
temin2 = get_timing( FROM_ECHO_OF, "read", TO_RF_CENTER_OF, "nextSlice" );
htrmin = MAX( temin, temin2 );
if( minte[0] == 'y' ){
te = htrmin;
}
tepad = granularity( te - temin, GRADIENT_RES );
tepad2 = granularity( te - temin2, GRADIENT_RES );
te = temin + tepad;
putCmd("setvalue('te', %f, 'current')\n", te );
if( tepad>0.0 ) change_timing( "readDeph", tepad );
if( tepad2>0.0 ) change_timing( "nextSlice", tepad2 );
tr = get_timing( FROM_START_OF, "slice", TO_START_OF, "nextSlice" );
putvalue("tr", tr );
delayRFToAcq = get_timing( FROM_RF_PULSE_OF, "slice", TO_ACQ_OF, "read" );
delayAcqToRF = get_timing( FROM_ACQ_OF, "read", TO_RF_PULSE_OF, "nextSlice" );
set_comp_info( &ss_pre, "ss_pre" );
write_comp_grads_snippet( NULL, NULL, &ss_pre, "START_OF_KERNEL", "markerA" );
set_comp_info( &read, "ro" );
set_comp_info( &phase, "pe" );
set_comp_info( &slice, "ss" );
write_comp_grads_snippet( &read, &phase, &slice, "markerA", "markerB" );
set_comp_info( &ss_post, "ss_post" );
write_comp_grads_snippet( NULL, NULL, &ss_post, "markerB", "END_OF_KERNEL" );
/* Set up frequency offset pulse shape list ********/
offsetlist(pss,ss_grad.ssamp,0,freqlist,ns,seqcon[1]);
shapelist1 = shapelist(p1_rf.pulseName,ss_grad.rfDuration,freqlist,ns,ss_grad.rfFraction, seqcon[1]);
/* Set pe_steps for profile or full image **********/
pe_steps = prep_profile(profile[0],nv,&pe_grad,&pe_grad);/* profile[0] is n y or r */
F_initval(pe_steps/2.0,vpe_offset);
g_setExpTime(trmean*(ntmean*pe_steps*arraydim + (1+fabs(ssc))*arraydim));
/* Shift DDR for pro *******************************/
roff = -poffset(pro,ro_grad.roamp);
/* PULSE SEQUENCE */
status( A );
rotate();
triggerSelect(trigger);
obsoffset( resto );
delay( GRADIENT_RES );
initval( 1+fabs( ssc ), vss );
obspower( p1_rf.powerCoarse );
obspwrf( p1_rf.powerFine );
delay( GRADIENT_RES );
assign(one,vacquire); // real-time acquire flag
setacqvar(vacquire); // Turn on acquire when vacquire is zero
obl_shapedgradient(ss_pre.name,ss_pre.dur,0,0,ss_pre.amp,NOWAIT);
sp1on();
delay(GRADIENT_RES);
sp1off();
delay(ss_pre.dur-GRADIENT_RES );
msloop( seqcon[1], ns, vms_slices, vms_ctr );
assign(vss,vssc);
peloop( seqcon[2], pe_steps, vpe_steps, vpe_ctr );
sub(vpe_ctr,vssc,vpe_ctr); // vpe_ctr counts up from -ssc
assign(zero,vssc);
if (seqcon[2] == 's')
assign(zero,vacquire); // Always acquire for non-compressed loop
else {
ifzero(vpe_ctr);
assign(zero,vacquire); // Start acquiring when vpe_ctr reaches zero
endif(vpe_ctr);
}
if (table)
getelem(t1,vpe_ctr,vpe_index);
else {
ifzero(vacquire);
sub(vpe_ctr,vpe_offset,vpe_index);
elsenz(vacquire);
sub(zero,vpe_offset,vpe_index);
endif(vacquire);
}
pe_shaped3gradient( read.name, phase.name, slice.name,
read.dur, read.amp, 0, slice.amp,
-pe_grad.increment, vpe_index, NOWAIT );
delay(ss_grad.rfDelayFront - granulatedRFDelay);
shapedpulselist( shapelist1, ss_grad.rfDuration, oph, rof1, rof2, seqcon[1], vms_ctr );
delay( delayRFToAcq - alfa );
startacq(alfa);
acquire( np, 1/ro_grad.bandwidth );
endacq();
delay( delayAcqToRF - ss_grad.rfDelayFront + granulatedRFDelay - GRADIENT_RES );
sp1on();
delay(GRADIENT_RES);
sp1off();
endpeloop( seqcon[2], vpe_ctr );
endmsloop( seqcon[1], vms_ctr );
obl_shapedgradient(ss_post.name,ss_post.dur,0,0,ss_post.amp,WAIT);
}
static void item_added_cb (GtkTreeModel *tree_model, GtkTreePath *path, GtkTreeIter *iter, gpointer user_data)
{
add_marker (tree_model, path, iter, user_data);
}
bool placement_finder::single_line_placement(vertex_cache &pp, text_upright_e orientation)
{
//
// IMPORTANT NOTE: See note about coordinate systems in find_point_placement()!
//
vertex_cache::scoped_state begin(pp);
text_upright_e real_orientation = simplify_upright(orientation, pp.angle());
glyph_positions_ptr glyphs = std::make_shared<glyph_positions>();
std::vector<box2d<double> > bboxes_all;
glyphs->reserve(layouts_.glyphs_count());
bboxes_all.reserve(layouts_.glyphs_count());
unsigned upside_down_glyph_count = 0;
marker_placement_finder_ptr marker_placement_ptr;
for (auto const& layout_ptr : layouts_)
{
text_layout const& layout = *layout_ptr;
if(has_marker_ && layout.shield_layout())
{
marker_placement_ptr = std::make_shared<marker_placement_finder>(layout_ptr);
}
pixel_position align_offset = layout.alignment_offset();
pixel_position const& layout_displacement = layout.displacement();
double sign = (real_orientation == UPRIGHT_LEFT) ? -1 : 1;
double offset = layout_displacement.y + 0.5 * sign * layout.height();
double adjust_character_spacing = .0;
double layout_width = layout.width();
bool adjust = layout.horizontal_alignment() == H_ADJUST;
if (adjust)
{
text_layout::const_iterator longest_line = layout.longest_line();
if (longest_line != layout.end())
{
adjust_character_spacing = (pp.length() - longest_line->glyphs_width()) / longest_line->space_count();
layout_width = longest_line->glyphs_width() + longest_line->space_count() * adjust_character_spacing;
}
}
//find the proper center line
int line_count = layout.num_lines() % 2 == 0 ? layout.num_lines() : layout.num_lines() - 1;
int centre_line_index = line_count/2;
int line_index = -1;
for (auto const& line : layout)
{
line_index++;
if(has_marker_ && marker_placement_ptr &&
(line_index == centre_line_index))
{
marker_placement_ptr->line_size(line.size());
}
// Only subtract half the line height here and half at the end because text is automatically
// centered on the line
if (layout.num_lines() == 1 || (layout.num_lines() > 1 && line_index != 0))
{
offset -= sign * line.height()/2;
}
vertex_cache & off_pp = pp.get_offseted(offset, sign * layout_width);
vertex_cache::scoped_state off_state(off_pp); // TODO: Remove this when a clean implementation in vertex_cache::get_offseted is done
double line_width = adjust ? (line.glyphs_width() + line.space_count() * adjust_character_spacing) : line.width();
if (!off_pp.move(sign * layout.jalign_offset(line_width) - align_offset.x)) return false;
double last_cluster_angle = 999;
int current_cluster = -1;
pixel_position cluster_offset;
double angle = 0.0;
rotation rot;
double last_glyph_spacing = 0.;
for (auto const& glyph : line)
{
if (current_cluster != static_cast<int>(glyph.char_index))
{
if (adjust)
{
if (!off_pp.move(sign * (layout.cluster_width(current_cluster) + last_glyph_spacing)))
return false;
last_glyph_spacing = adjust_character_spacing;
}
else
{
if (!off_pp.move_to_distance(sign * (layout.cluster_width(current_cluster) + last_glyph_spacing)))
return false;
last_glyph_spacing = glyph.format->character_spacing * scale_factor_;
}
current_cluster = glyph.char_index;
// Only calculate new angle at the start of each cluster!
angle = normalize_angle(off_pp.angle(sign * layout.cluster_width(current_cluster)));
rot.init(angle);
if ((text_props_->max_char_angle_delta > 0) && (last_cluster_angle != 999) &&
std::fabs(normalize_angle(angle-last_cluster_angle)) > text_props_->max_char_angle_delta)
{
return false;
}
cluster_offset.clear();
last_cluster_angle = angle;
}
if (std::abs(angle) > M_PI/2) ++upside_down_glyph_count;
pixel_position pos = off_pp.current_position() + cluster_offset;
// Center the text on the line
double char_height = line.max_char_height();
pos.y = -pos.y - char_height/2.0*rot.cos;
pos.x = pos.x + char_height/2.0*rot.sin;
cluster_offset.x += rot.cos * glyph.advance();
cluster_offset.y -= rot.sin * glyph.advance();
box2d<double> bbox = get_bbox(layout, glyph, pos, rot);
if (collision(bbox, layouts_.text(), true)) return false;
//Whitespace glyphs have 0 height - sadly, there is no other easily
// accessible data in a glyph to indicate that it is whitespace.
bool glyph_is_empty = (0 == glyph.height());
//Collect all glyphs and angles for the centre line, in the case a
// marker position needs to be calculated later
if(has_marker_ && marker_placement_ptr
&& layout.shield_layout()
&& (line_index == centre_line_index))
{
marker_placement_ptr->add_angle(angle);
marker_placement_ptr->add_bbox(bbox);
}
//If the glyph is empty, don't draw it, and don't include it in the
// overall bounding box. This means that leading and trailing
// whitespace characters don't take up extra space where other
// symbols could be placed on a map.
if(!glyph_is_empty)
{
bboxes_all.push_back(std::move(bbox));
glyphs->emplace_back(glyph, pos, rot);
}
}
// See comment above
offset -= sign * line.height()/2;
}
if(marker_placement_ptr)
{
marker_placement_ptr->align_offset(align_offset);
}
}
if (upside_down_glyph_count > static_cast<unsigned>(layouts_.text().length() / 2))
{
if (orientation == UPRIGHT_AUTO)
{
// Try again with opposite orientation
begin.restore();
return single_line_placement(pp, real_orientation == UPRIGHT_RIGHT ? UPRIGHT_LEFT : UPRIGHT_RIGHT);
}
// upright==left_only or right_only and more than 50% of characters upside down => no placement
else if (orientation == UPRIGHT_LEFT_ONLY || orientation == UPRIGHT_RIGHT_ONLY)
{
return false;
}
}
//NOTE: Because of the glyph_is_empty check above, whitespace characters
// don't factor in to the bounding box. This way, whitespace used for
// layout adjustment purposes don't artificially increase the size of
// the bounding box and reduce the density of possible mapnik symbols.
box2d<double> overall_bbox;
bool overall_bbox_initialized = false;
for(box2d<double> const& bbox : bboxes_all)
{
detector_.insert(bbox, layouts_.text());
if(overall_bbox_initialized)
{
overall_bbox.expand_to_include(bbox);
}
else
{
overall_bbox = bbox;
}
}
//WI: loop over marker_placements and place the markers for each layout
if(has_marker_ && marker_placement_ptr )
{
pixel_position marker_pos;
double marker_cw_angle = 0.0;
marker_placement_ptr->find_marker_placement(scale_factor_, marker_pos, marker_cw_angle);
agg::trans_affine placement_tr;
placement_tr.rotate( marker_cw_angle );
add_marker(glyphs, marker_pos, true, placement_tr);
detector_.insert(overall_bbox, layouts_.text());
}
placements_.push_back(glyphs);
return true;
}
bool placement_finder::find_point_placement(pixel_position const& pos)
{
glyph_positions_ptr glyphs = std::make_shared<glyph_positions>();
std::vector<box2d<double> > bboxes;
glyphs->reserve(layouts_.glyphs_count());
bboxes.reserve(layouts_.size());
box2d<double> bbox;
double max_line_width = 0.0;
double first_line_height = -1.0;
bool base_point_set = false;
for (auto const& layout_ptr : layouts_)
{
text_layout const& layout = *layout_ptr;
rotation const& orientation = layout.orientation();
// Find text origin.
pixel_position layout_center = pos + layout.displacement();
if (!base_point_set)
{
glyphs->set_base_point(layout_center);
base_point_set = true;
}
bbox = layout.bounds();
bbox.re_center(layout_center.x, layout_center.y);
/* For point placements it is faster to just check the bounding box. */
if (collision(bbox, layouts_.text(), false)) return false;
if (layout.num_lines()) bboxes.push_back(std::move(bbox));
pixel_position layout_offset = layout_center - glyphs->get_base_point();
layout_offset.y = -layout_offset.y;
// IMPORTANT NOTE:
// x and y are relative to the center of the text
// coordinate system:
// x: grows from left to right
// y: grows from bottom to top (opposite of normal computer graphics)
double x, y;
// set for upper left corner of text envelope for the first line, top left of first character
y = layout.height() / 2.0;
for ( auto const& line : layout)
{
y -= line.height(); //Automatically handles first line differently
x = layout.jalign_offset(line.width());
if(line.width() > max_line_width)
{
max_line_width = line.width();
}
if(first_line_height <= 0.0 )
{
first_line_height = line.line_height() / scale_factor_;
}
for (auto const& glyph : line)
{
// place the character relative to the center of the string envelope
glyphs->emplace_back(glyph, (pixel_position(x, y).rotate(orientation)) + layout_offset, orientation);
if (glyph.advance())
{
//Only advance if glyph is not part of a multiple glyph sequence
x += glyph.advance() + glyph.format->character_spacing * scale_factor_;
}
}
}
}
// add_marker first checks for collision and then updates the detector.
if (has_marker_ )
{
agg::trans_affine placement_tr;
if(text_props_->fit_marker && glyphs->size() > 0)
{
double padding = 0.1;
double width_scale = bbox.width() / marker_box_.width() + 2*padding; // 2 because the text is being padded on both sides.
double heigh_scale = bbox.height() / marker_box_.height() + 2*padding; // 2 because the text is being padded on both sides.
placement_tr.scale(width_scale, heigh_scale);
//now we will need to shift the bbox it will fit the padding
placement_tr.translate(- padding, - padding );
}
if(!add_marker(glyphs, pos, false, placement_tr))
{
return false;
}
}
for (box2d<double> const& bbox : bboxes)
{
detector_.insert(bbox, layouts_.text());
}
placements_.push_back(glyphs);
return true;
}
