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Refactoring of PreviewCanvas

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This commit is contained in:
Alessandro Ranellucci 2014-12-15 01:28:11 +01:00
parent 74b3be3c06
commit 9cd0a63331
4 changed files with 185 additions and 151 deletions
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317
lib/Slic3r/GUI/PreviewCanvas.pm
View file

@ -12,7 +12,7 @@ use Slic3r::Geometry qw(X Y Z MIN MAX triangle_normal normalize deg2rad tan scal
use Slic3r::Geometry::Clipper qw(offset_ex intersection_pl);
use Wx::GLCanvas qw(:all);
__PACKAGE__->mk_accessors( qw(quat dirty init mview_init
__PACKAGE__->mk_accessors( qw(_quat _dirty init mview_init
object_bounding_box
enable_picking
enable_moving
@ -21,17 +21,18 @@ __PACKAGE__->mk_accessors( qw(quat dirty init mview_init
on_double_click
on_right_click
on_instance_moved
volumes initpos
sphi stheta
volumes
_sphi _stheta
cutting_plane_z
cut_lines_vertices
bed_triangles
bed_grid_lines
origin
_mouse_pos
_hover_volume_idx
_drag_volume_idx
_drag_start_pos
_camera_target
_zoom
) );
use constant TRACKBALLSIZE => 0.8;
@ -55,9 +56,11 @@ sub new {
my $self = $class->SUPER::new($parent, -1, Wx::wxDefaultPosition, Wx::wxDefaultSize, 0, "",
[WX_GL_RGBA, WX_GL_DOUBLEBUFFER, WX_GL_DEPTH_SIZE, 16, 0]);
$self->quat((0, 0, 0, 1));
$self->sphi(45);
$self->stheta(-45);
$self->_quat((0, 0, 0, 1));
$self->_stheta(45);
$self->_sphi(45);
$self->_zoom(1);
$self->_camera_target(Slic3r::Pointf->new(0,0));
$self->reset_objects;
@ -66,9 +69,9 @@ sub new {
return if !$self->object_bounding_box;
$self->Render($dc);
});
EVT_SIZE($self, sub { $self->dirty(1) });
EVT_SIZE($self, sub { $self->_dirty(1) });
EVT_IDLE($self, sub {
return unless $self->dirty;
return unless $self->_dirty;
return if !$self->IsShownOnScreen;
return if !$self->object_bounding_box;
$self->Resize( $self->GetSizeWH );
@ -77,91 +80,138 @@ sub new {
EVT_MOUSEWHEEL($self, sub {
my ($self, $e) = @_;
my $zoom = ($e->GetWheelRotation() / $e->GetWheelDelta() / 10);
$zoom = $zoom > 0 ? (1.0 + $zoom) : 1 / (1.0 - $zoom);
my $pos3d = $self->mouse_to_3d($e->GetX(), $e->GetY());
$self->ZoomTo($zoom, $pos3d->x, $pos3d->y); #))
# Calculate the zoom delta and apply it to the current zoom factor
my $zoom = 1 - ($e->GetWheelRotation() / $e->GetWheelDelta() / 10);
$self->_zoom($self->_zoom * $zoom);
# In order to zoom around the mouse point we need to translate
# the camera target
my $size = Slic3r::Pointf->new($self->GetSizeWH);
my $pos = Slic3r::Pointf->new($e->GetX, $size->y - $e->GetY); #-
$self->_camera_target->translate(
# ($pos - $size/2) represents the vector from the viewport center
# to the mouse point. By multiplying it by $zoom we get the new,
# transformed, length of such vector.
# Since we want that point to stay fixed, we move our camera target
# in the opposite direction by the delta of the length of such vector
# ($zoom - 1). We then scale everything by 1/$self->_zoom since
# $self->_camera_target is expressed in terms of model units.
-($pos->x - $size->x/2) * ($zoom - 1) / $self->_zoom,
-($pos->y - $size->y/2) * ($zoom - 1) / $self->_zoom,
);
$self->_dirty(1);
$self->Refresh;
});
EVT_MOUSE_EVENTS($self, sub {
my ($self, $e) = @_;
EVT_MOUSE_EVENTS($self, \&mouse_event);
return $self;
}
sub mouse_event {
my ($self, $e) = @_;
my $pos = Slic3r::Pointf->new($e->GetPositionXY);
if ($e->LeftDClick) {
$self->on_double_click->()
if $self->on_double_click;
} elsif ($e->LeftDown || $e->RightDown) {
# If user pressed left or right button we first check whether this happened
# on a volume or not.
my $volume_idx = first { $self->volumes->[$_]->hover } 0..$#{$self->volumes};
$volume_idx //= -1;
my $pos = Slic3r::Pointf->new($e->GetPositionXY);
if ($e->LeftDClick) {
$self->on_double_click->()
if $self->on_double_click;
} elsif ($e->LeftDown || $e->RightDown) {
my $volume_idx = first { $self->volumes->[$_]->hover } 0..$#{$self->volumes};
$volume_idx //= -1;
# select volume in this 3D canvas
# select volume in this 3D canvas
if ($self->enable_picking) {
$self->deselect_volumes;
$self->select_volume($volume_idx);
$self->Refresh;
# propagate event through callback
$self->on_select->($volume_idx)
if $self->on_select;
if ($volume_idx != -1) {
if ($e->LeftDown && $self->enable_moving) {
$self->_drag_volume_idx($volume_idx);
$self->_drag_start_pos($self->mouse_to_3d(@$pos));
} elsif ($e->RightDown) {
# if right clicking on volume, propagate event through callback
$self->on_right_click->($e->GetPosition)
if $self->on_right_click;
}
}
} elsif ($e->Dragging && $e->LeftIsDown && defined($self->_drag_volume_idx)) {
# get volume being dragged
my $volume = $self->volumes->[$self->_drag_volume_idx];
# get new position and calculate the move vector
my $cur_pos = $self->mouse_to_3d(@$pos);
my $vector = $self->_drag_start_pos->vector_to($cur_pos);
# apply new temporary volume origin and ignore Z
$volume->origin->set_x(-$vector->x);
$volume->origin->set_y(-$vector->y); #))
$self->Refresh;
} elsif ($e->Dragging) {
my $volume_idx = first { $self->volumes->[$_]->{hover} } 0..$#{$self->volumes};
$volume_idx //= -1;
if ($e->LeftIsDown && $volume_idx == -1) {
# if dragging over blank area with left button, rotate
$self->handle_rotation($e);
} elsif ($e->RightIsDown && $volume_idx == -1) {
# if dragging over blank area with right button, translate
$self->handle_translation($e);
}
} elsif ($e->LeftUp || $e->RightUp) {
$self->initpos(undef);
if ($self->on_instance_moved && defined $self->_drag_volume_idx) {
my $volume = $self->volumes->[$self->_drag_volume_idx];
$self->on_instance_moved($self->_drag_volume_idx, $volume->instance_idx);
}
$self->_drag_volume_idx(undef);
$self->_drag_start_pos(undef);
} elsif ($e->Moving) {
$self->_mouse_pos($pos);
$self->Refresh;
} else {
$e->Skip();
}
});
return $self;
# propagate event through callback
$self->on_select->($volume_idx)
if $self->on_select;
if ($volume_idx != -1) {
if ($e->LeftDown && $self->enable_moving) {
$self->_drag_volume_idx($volume_idx);
$self->_drag_start_pos($self->mouse_to_3d(@$pos));
} elsif ($e->RightDown) {
# if right clicking on volume, propagate event through callback
$self->on_right_click->($e->GetPosition)
if $self->on_right_click;
}
}
} elsif ($e->Dragging && $e->LeftIsDown && defined($self->_drag_volume_idx)) {
# get volume being dragged
my $volume = $self->volumes->[$self->_drag_volume_idx];
# get new position and calculate the move vector
my $cur_pos = $self->mouse_to_3d(@$pos);
my $vector = $self->_drag_start_pos->vector_to($cur_pos);
# apply new temporary volume origin and ignore Z
$volume->origin->set_x(-$vector->x);
$volume->origin->set_y(-$vector->y); #))
$self->Refresh;
} elsif ($e->Dragging) {
my $volume_idx = first { $self->volumes->[$_]->hover } 0..$#{$self->volumes};
$volume_idx //= -1;
if ($e->LeftIsDown && $volume_idx == -1) {
# if dragging over blank area with left button, rotate
if (defined $self->_drag_start_pos) {
my $orig = $self->_drag_start_pos;
if (TURNTABLE_MODE) {
$self->_sphi($self->_sphi + ($pos->x - $orig->x) * TRACKBALLSIZE);
$self->_stheta($self->_stheta - ($pos->y - $orig->y) * TRACKBALLSIZE); #-
} else {
my $size = $self->GetClientSize;
my @quat = trackball(
$orig->x / ($size->width / 2) - 1,
1 - $orig->y / ($size->height / 2), #/
$pos->x / ($size->width / 2) - 1,
1 - $pos->y / ($size->height / 2), #/
);
$self->_quat(mulquats($self->_quat, \@quat));
}
$self->Refresh;
}
$self->_drag_start_pos($pos);
} elsif ($e->RightIsDown && $volume_idx == -1) {
# if dragging over blank area with right button, translate
if (defined $self->_drag_start_pos) {
my $orig = $self->_drag_start_pos;
glMatrixMode(GL_MODELVIEW);
$self->_camera_target->translate(
($pos->x - $orig->x) / $self->_zoom,
($orig->y - $pos->y) / $self->_zoom, #- (converts to upwards Y)
);
$self->Refresh;
}
$self->_drag_start_pos($pos);
}
} elsif ($e->LeftUp || $e->RightUp) {
$self->_drag_start_pos(undef);
if ($self->on_instance_moved && defined $self->_drag_volume_idx) {
my $volume = $self->volumes->[$self->_drag_volume_idx];
$self->on_instance_moved($self->_drag_volume_idx, $volume->instance_idx);
}
$self->_drag_volume_idx(undef);
$self->_drag_start_pos(undef);
} elsif ($e->Moving) {
$self->_mouse_pos($pos);
$self->Refresh;
} else {
$e->Skip();
}
}
sub reset_objects {
my ($self) = @_;
$self->volumes([]);
$self->dirty(1);
$self->_dirty(1);
}
# this method accepts a Slic3r::BoudingBox3f object
@ -169,7 +219,22 @@ sub set_bounding_box {
my ($self, $bb) = @_;
$self->object_bounding_box($bb);
$self->dirty(1);
$self->zoom_to_bounding_box;
$self->_dirty(1);
}
sub zoom_to_bounding_box {
my ($self) = @_;
# calculate the zoom factor needed to adjust viewport to
# bounding box
my $max_size = max(@{$self->object_bounding_box->size}) * sqrt(2);
my $min_viewport_size = min($self->GetSizeWH);
$self->_zoom($min_viewport_size / $max_size / 1.3);
# center view around bounding box center
$self->_camera_target->set_x(0);
$self->_camera_target->set_y(0);
}
sub set_auto_bed_shape {
@ -414,75 +479,19 @@ sub mulquats {
@$q1[3] * @$rq[3] - @$q1[0] * @$rq[0] - @$q1[1] * @$rq[1] - @$q1[2] * @$rq[2])
}
sub handle_rotation {
my ($self, $e) = @_;
if (not defined $self->initpos) {
$self->initpos($e->GetPosition());
} else {
my $orig = $self->initpos;
my $new = $e->GetPosition();
my $size = $self->GetClientSize();
if (TURNTABLE_MODE) {
$self->sphi($self->sphi + ($new->x - $orig->x)*TRACKBALLSIZE);
$self->stheta($self->stheta + ($new->y - $orig->y)*TRACKBALLSIZE); #-
} else {
my @quat = trackball($orig->x / ($size->width / 2) - 1,
1 - $orig->y / ($size->height / 2), #/
$new->x / ($size->width / 2) - 1,
1 - $new->y / ($size->height / 2), #/
);
$self->quat(mulquats($self->quat, \@quat));
}
$self->initpos($new);
$self->Refresh;
}
}
sub handle_translation {
my ($self, $e) = @_;
if (not defined $self->initpos) {
$self->initpos($e->GetPosition());
} else {
my $new = $e->GetPosition();
my $orig = $self->initpos;
my $orig3d = $self->mouse_to_3d($orig->x, $orig->y); #)()
my $new3d = $self->mouse_to_3d($new->x, $new->y); #)()
glTranslatef($new3d->x - $orig3d->x, $new3d->y - $orig3d->y, 0); #--
$self->initpos($new);
$self->Refresh;
}
}
sub mouse_to_3d {
my ($self, $x, $y) = @_;
my @viewport = glGetIntegerv_p(GL_VIEWPORT); # 4 items
my @mview = glGetDoublev_p(GL_MODELVIEW_MATRIX); # 16 items
my @proj = glGetDoublev_p(GL_PROJECTION_MATRIX); # 16 items
my @projected = gluUnProject_p($x, $viewport[3] - $y, 1.0, @mview, @proj, @viewport);
$y = $viewport[3] - $y;
my $z = glReadPixels_p($x, $y, 1, 1, GL_DEPTH_COMPONENT, GL_FLOAT);
my @projected = gluUnProject_p($x, $y, $z, @mview, @proj, @viewport);
return Slic3r::Pointf3->new(@projected);
}
sub ZoomTo {
my ($self, $factor, $tox, $toy) = @_;
return if !$self->init;
glTranslatef($tox, $toy, 0);
glMatrixMode(GL_MODELVIEW);
$self->Zoom($factor);
glTranslatef(-$tox, -$toy, 0);
}
sub Zoom {
my ($self, $factor) = @_;
glMatrixMode(GL_MODELVIEW);
glScalef($factor, $factor, 1);
}
sub GetContext {
my ($self) = @_;
@ -517,11 +526,14 @@ sub Resize {
my ($self, $x, $y) = @_;
return unless $self->GetContext;
$self->dirty(0);
$self->_dirty(0);
$self->SetCurrent($self->GetContext);
glViewport(0, 0, $x, $y);
$x /= $self->_zoom;
$y /= $self->_zoom;
glMatrixMode(GL_PROJECTION);
glLoadIdentity();
glOrtho(
@ -594,15 +606,18 @@ sub Render {
glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
glMatrixMode(GL_MODELVIEW);
glPushMatrix();
glLoadIdentity();
my $bb = $self->object_bounding_box;
my $object_size = $bb->size;
glTranslatef(0, 0, -max(@$object_size[0..1]));
my @rotmat = quat_to_rotmatrix($self->quat);
glMultMatrixd_p(@rotmat[0..15]);
glRotatef($self->stheta, 1, 0, 0);
glRotatef($self->sphi, 0, 0, 1);
glTranslatef(@{ $self->_camera_target }, 0);
if (TURNTABLE_MODE) {
glRotatef(-$self->_stheta, 1, 0, 0); # pitch
glRotatef($self->_sphi, 0, 0, 1); # yaw
} else {
my @rotmat = quat_to_rotmatrix($self->quat);
glMultMatrixd_p(@rotmat[0..15]);
}
# center everything around 0,0 since that's where we're looking at (glOrtho())
my $center = $bb->center;
@ -617,7 +632,7 @@ sub Render {
if (my $pos = $self->_mouse_pos) {
my $col = [ glReadPixels_p($pos->x, $self->GetSize->GetHeight - $pos->y, 1, 1, GL_RGBA, GL_UNSIGNED_BYTE) ];
my $volume_idx = $col->[0] + $col->[1]*256 + $col->[2]*256*256;
$_->{hover} = 0 for @{$self->volumes};
$_->hover(0) for @{$self->volumes};
if ($volume_idx <= $#{$self->volumes}) {
$self->volumes->[$volume_idx]->hover(1);
$self->on_hover->($volume_idx) if $self->on_hover;
@ -703,7 +718,6 @@ sub Render {
glEnable(GL_LIGHTING);
glPopMatrix();
glFlush();
$self->SwapBuffers();
@ -719,6 +733,7 @@ sub draw_volumes {
foreach my $volume_idx (0..$#{$self->volumes}) {
my $volume = $self->volumes->[$volume_idx];
glPushMatrix();
glTranslatef(@{$volume->origin->negative});
glVertexPointer_p(3, $volume->verts);
@ -739,7 +754,7 @@ sub draw_volumes {
}
glDrawArrays(GL_TRIANGLES, 0, $volume->verts->elements / 3);
glTranslatef(@{$volume->origin});
glPopMatrix();
}
glDisableClientState(GL_NORMAL_ARRAY);
glDisable(GL_BLEND);