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# The bed shape dialog.
# The dialog opens from Print Settins tab -> Bed Shape: Set...
package Slic3r::GUI::BedShapeDialog;
use strict;
use warnings;
use utf8;
use List::Util qw(min max);
use Slic3r::Geometry qw(PI X Y unscale);
use Wx qw(:dialog :id :misc :sizer :choicebook wxTAB_TRAVERSAL);
use Wx::Event qw(EVT_CLOSE);
use base 'Wx::Dialog';
sub new {
my $class = shift;
my ($parent, $default) = @_;
my $self = $class->SUPER::new($parent, -1, "Bed Shape", wxDefaultPosition, [350,700], wxDEFAULT_DIALOG_STYLE | wxRESIZE_BORDER);
$self->{panel} = my $panel = Slic3r::GUI::BedShapePanel->new($self, $default);
my $main_sizer = Wx::BoxSizer->new(wxVERTICAL);
$main_sizer->Add($panel, 1, wxEXPAND);
$main_sizer->Add($self->CreateButtonSizer(wxOK | wxCANCEL), 0, wxEXPAND);
$self->SetSizer($main_sizer);
$self->SetMinSize($self->GetSize);
$main_sizer->SetSizeHints($self);
# needed to actually free memory
EVT_CLOSE($self, sub {
$self->EndModal(wxID_OK);
$self->Destroy;
});
return $self;
}
sub GetValue {
my ($self) = @_;
return $self->{panel}->GetValue;
}
package Slic3r::GUI::BedShapePanel;
use List::Util qw(min max sum first);
use Scalar::Util qw(looks_like_number);
use Slic3r::Geometry qw(PI X Y scale unscale scaled_epsilon deg2rad);
use Wx qw(:font :id :misc :sizer :choicebook :filedialog :pen :brush wxTAB_TRAVERSAL);
use Wx::Event qw(EVT_CLOSE EVT_CHOICEBOOK_PAGE_CHANGED EVT_BUTTON);
use base 'Wx::Panel';
use constant SHAPE_RECTANGULAR => 0;
use constant SHAPE_CIRCULAR => 1;
use constant SHAPE_CUSTOM => 2;
sub new {
my $class = shift;
my ($parent, $default) = @_;
my $self = $class->SUPER::new($parent, -1);
$self->on_change(undef);
my $box = Wx::StaticBox->new($self, -1, "Shape");
my $sbsizer = Wx::StaticBoxSizer->new($box, wxVERTICAL);
# shape options
$self->{shape_options_book} = Wx::Choicebook->new($self, -1, wxDefaultPosition, [300,-1], wxCHB_TOP);
$sbsizer->Add($self->{shape_options_book});
$self->{optgroups} = [];
{
my $optgroup = $self->_init_shape_options_page('Rectangular');
$optgroup->append_single_option_line(Slic3r::GUI::OptionsGroup::Option->new(
opt_id => 'rect_size',
type => 'point',
label => 'Size',
tooltip => 'Size in X and Y of the rectangular plate.',
default => [200,200],
));
$optgroup->append_single_option_line(Slic3r::GUI::OptionsGroup::Option->new(
opt_id => 'rect_origin',
type => 'point',
label => 'Origin',
tooltip => 'Distance of the 0,0 G-code coordinate from the front left corner of the rectangle.',
default => [0,0],
));
}
{
my $optgroup = $self->_init_shape_options_page('Circular');
$optgroup->append_single_option_line(Slic3r::GUI::OptionsGroup::Option->new(
opt_id => 'diameter',
type => 'f',
label => 'Diameter',
tooltip => 'Diameter of the print bed. It is assumed that origin (0,0) is located in the center.',
sidetext => 'mm',
default => 200,
));
}
{
my $optgroup = $self->_init_shape_options_page('Custom');
$optgroup->append_line(Slic3r::GUI::OptionsGroup::Line->new(
full_width => 1,
widget => sub {
my ($parent) = @_;
my $btn = Wx::Button->new($parent, -1, "Load shape from STL...", wxDefaultPosition, wxDefaultSize);
EVT_BUTTON($self, $btn, sub { $self->_load_stl });
return $btn;
}
));
}
EVT_CHOICEBOOK_PAGE_CHANGED($self, -1, sub {
$self->_update_shape;
});
# right pane with preview canvas
my $canvas = $self->{canvas} = Slic3r::GUI::2DBed->new($self);
# main sizer
my $top_sizer = Wx::BoxSizer->new(wxHORIZONTAL);
$top_sizer->Add($sbsizer, 0, wxEXPAND | wxTOP | wxBOTTOM, 10);
$top_sizer->Add($canvas, 1, wxEXPAND | wxALL, 10) if $canvas;
$self->SetSizerAndFit($top_sizer);
$self->_set_shape($default);
$self->_update_preview;
return $self;
}
sub on_change {
my ($self, $cb) = @_;
$self->{on_change} = $cb // sub {};
}
# Called from the constructor.
# Set the initial bed shape from a list of points.
# Deduce the bed shape type (rect, circle, custom)
# This routine shall be smart enough if the user messes up
# with the list of points in the ini file directly.
sub _set_shape {
my ($self, $points) = @_;
# is this a rectangle?
if (@$points == 4) {
my $polygon = Slic3r::Polygon->new_scale(@$points);
my $lines = $polygon->lines;
if ($lines->[0]->parallel_to_line($lines->[2]) && $lines->[1]->parallel_to_line($lines->[3])) {
# okay, it's a rectangle
# find origin
# the || 0 hack prevents "-0" which might confuse the user
my $x_min = min(map $_->[X], @$points) || 0;
my $x_max = max(map $_->[X], @$points) || 0;
my $y_min = min(map $_->[Y], @$points) || 0;
my $y_max = max(map $_->[Y], @$points) || 0;
my $origin = [-$x_min, -$y_min];
$self->{shape_options_book}->SetSelection(SHAPE_RECTANGULAR);
my $optgroup = $self->{optgroups}[SHAPE_RECTANGULAR];
$optgroup->set_value('rect_size', [ $x_max-$x_min, $y_max-$y_min ]);
$optgroup->set_value('rect_origin', $origin);
$self->_update_shape;
return;
}
}
# is this a circle?
{
# Analyze the array of points. Do they reside on a circle?
my $polygon = Slic3r::Polygon->new_scale(@$points);
my $center = $polygon->bounding_box->center;
my @vertex_distances = map $center->distance_to($_), @$polygon;
my $avg_dist = sum(@vertex_distances)/@vertex_distances;
if (!defined first { abs($_ - $avg_dist) > 10*scaled_epsilon } @vertex_distances) {
# all vertices are equidistant to center
$self->{shape_options_book}->SetSelection(SHAPE_CIRCULAR);
my $optgroup = $self->{optgroups}[SHAPE_CIRCULAR];
$optgroup->set_value('diameter', sprintf("%.0f", unscale($avg_dist*2)));
$self->_update_shape;
return;
}
}
if (@$points < 3) {
# Invalid polygon. Revert to default bed dimensions.
$self->{shape_options_book}->SetSelection(SHAPE_RECTANGULAR);
my $optgroup = $self->{optgroups}[SHAPE_RECTANGULAR];
$optgroup->set_value('rect_size', [200, 200]);
$optgroup->set_value('rect_origin', [0, 0]);
$self->_update_shape;
return;
}
# This is a custom bed shape, use the polygon provided.
$self->{shape_options_book}->SetSelection(SHAPE_CUSTOM);
# Copy the polygon to the canvas, make a copy of the array.
$self->{canvas}->bed_shape([@$points]);
$self->_update_shape;
}
# Update the bed shape from the dialog fields.
sub _update_shape {
my ($self) = @_;
my $page_idx = $self->{shape_options_book}->GetSelection;
if ($page_idx == SHAPE_RECTANGULAR) {
my $rect_size = $self->{optgroups}[SHAPE_RECTANGULAR]->get_value('rect_size');
my $rect_origin = $self->{optgroups}[SHAPE_RECTANGULAR]->get_value('rect_origin');
my ($x, $y) = @$rect_size;
return if !looks_like_number($x) || !looks_like_number($y); # empty strings or '-' or other things
return if !$x || !$y or $x == 0 or $y == 0;
my ($x0, $y0) = (0,0);
my ($x1, $y1) = ($x ,$y);
{
my ($dx, $dy) = @$rect_origin;
return if !looks_like_number($dx) || !looks_like_number($dy); # empty strings or '-' or other things
$x0 -= $dx;
$x1 -= $dx;
$y0 -= $dy;
$y1 -= $dy;
}
$self->{canvas}->bed_shape([
[$x0,$y0],
[$x1,$y0],
[$x1,$y1],
[$x0,$y1],
]);
} elsif ($page_idx == SHAPE_CIRCULAR) {
my $diameter = $self->{optgroups}[SHAPE_CIRCULAR]->get_value('diameter');
return if !$diameter or $diameter == 0;
my $r = $diameter/2;
my $twopi = 2*PI;
my $edges = 60;
my $polygon = Slic3r::Polygon->new_scale(
map [ $r * cos $_, $r * sin $_ ],
map { $twopi/$edges*$_ } 1..$edges
);
$self->{canvas}->bed_shape([
map [ unscale($_->x), unscale($_->y) ], @$polygon #))
]);
}
$self->{on_change}->();
$self->_update_preview;
}
sub _update_preview {
my ($self) = @_;
$self->{canvas}->Refresh if $self->{canvas};
$self->Refresh;
}
# Called from the constructor.
# Create a panel for a rectangular / circular / custom bed shape.
sub _init_shape_options_page {
my ($self, $title) = @_;
my $panel = Wx::Panel->new($self->{shape_options_book});
my $optgroup;
push @{$self->{optgroups}}, $optgroup = Slic3r::GUI::OptionsGroup->new(
parent => $panel,
title => 'Settings',
label_width => 100,
on_change => sub {
my ($opt_id) = @_;
#$self->{"_$opt_id"} = $optgroup->get_value($opt_id);
$self->_update_shape;
},
);
$panel->SetSizerAndFit($optgroup->sizer);
$self->{shape_options_book}->AddPage($panel, $title);
return $optgroup;
}
# Loads an stl file, projects it to the XY plane and calculates a polygon.
sub _load_stl {
my ($self) = @_;
my $dialog = Wx::FileDialog->new($self, 'Choose a file to import bed shape from (STL/OBJ/AMF/PRUSA):', "", "", &Slic3r::GUI::MODEL_WILDCARD, wxFD_OPEN | wxFD_FILE_MUST_EXIST);
if ($dialog->ShowModal != wxID_OK) {
$dialog->Destroy;
return;
}
my $input_file = Slic3r::decode_path($dialog->GetPaths);
$dialog->Destroy;
my $model = Slic3r::Model->read_from_file($input_file);
my $mesh = $model->raw_mesh;
my $expolygons = $mesh->horizontal_projection;
if (@$expolygons == 0) {
Slic3r::GUI::show_error($self, "The selected file contains no geometry.");
return;
}
if (@$expolygons > 1) {
Slic3r::GUI::show_error($self, "The selected file contains several disjoint areas. This is not supported.");
return;
}
my $polygon = $expolygons->[0]->contour;
$self->{canvas}->bed_shape([ map [ unscale($_->x), unscale($_->y) ], @$polygon ]);
$self->_update_preview();
}
# Returns the resulting bed shape polygon. This value will be stored to the ini file.
sub GetValue {
my ($self) = @_;
return $self->{canvas}->bed_shape;
}
1;
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