Files
OneCAD-Draft/src/entities/viewport.rs
T
Hakan SevenandClaude Opus 5.5 f537aff75c feat: node graph overlay; move to opencadcodec/opencadkernel/opencadgraph
The codec and kernel repositories and crates are renamed opencadcodec and
opencadkernel. Inside OCS they are depended on under short keys, so code
reads `codec::`, `kernel::` and the new `graph::` (opencadgraph, the node
graph engine). File-format and protocol spellings stay as they were: the
ACIS product id `acadrust`, the ACADRUST_* switches and the plugin
version keys `acadrust_version` / `acadrust_source`.

A button left of MCP on the command line opens a translucent node graph
over the viewport, with a palette of object, input, math, logic, list,
text and geometry nodes added by click or drag. An object node owns
drawing entities and its rows are the Properties panel's own rows for
them: the single-object page is extracted from refresh_properties as
entity_property_sections, values use the control protocol's
property_json, and writes go through set_property_value with a property
target override, so the panel, MCP and the graph share one read/write
path. A list reaching an object row makes one entity per element. Each
graph action is one undo step; the canvas pans and zooms.

Co-Authored-By: Claude Opus 5.5 <[email protected]>
2026-09-25 07:34:23 +03:00

456 lines
15 KiB
Rust

use codec::entities::{Viewport, ViewportRenderMode};
use crate::command::EntityTransform;
use crate::entities::common::{
center_grip, edit_prop as edit, parse_f64, ro_prop as ro, square_grip,
};
use crate::scene::model::object::{GripApply, GripDef, PropSection, PropValue, Property};
// ── Standard scale options ────────────────────────────────────────────────
const STANDARD_SCALES: &[(&str, f64)] = &[
("1:500", 0.002),
("1:200", 0.005),
("1:100", 0.01),
("1:50", 0.02),
("1:20", 0.05),
("1:10", 0.1),
("1:5", 0.2),
("1:2", 0.5),
("1:1", 1.0),
("2:1", 2.0),
("5:1", 5.0),
("10:1", 10.0),
];
fn scale_label(scale: f64) -> String {
for (label, val) in STANDARD_SCALES {
if (scale - val).abs() < val * 0.01 {
return label.to_string();
}
}
format!("{:.6}", scale)
.trim_end_matches('0')
.trim_end_matches('.')
.to_string()
}
// ── Render mode options ───────────────────────────────────────────────────
const RENDER_MODES: &[(&str, ViewportRenderMode)] = &[
("2D Wireframe", ViewportRenderMode::Wireframe2D),
("3D Wireframe", ViewportRenderMode::Wireframe3D),
("Hidden Line", ViewportRenderMode::HiddenLine),
("Flat Shaded", ViewportRenderMode::FlatShaded),
("Gouraud Shaded", ViewportRenderMode::GouraudShaded),
(
"Flat Shaded + Edges",
ViewportRenderMode::FlatShadedWithEdges,
),
(
"Gouraud Shaded + Edges",
ViewportRenderMode::GouraudShadedWithEdges,
),
];
// ── Shade plot mode labels ────────────────────────────────────────────────
const SHADE_PLOT_LABELS: &[&str] = &["As Displayed", "Wireframe", "Hidden", "Rendered"];
fn shade_plot_label(mode: i16) -> &'static str {
SHADE_PLOT_LABELS
.get(mode as usize)
.copied()
.unwrap_or("As Displayed")
}
fn grips(vp: &Viewport) -> Vec<GripDef> {
let (cx, cy, cz) = (vp.center.x, vp.center.y, vp.center.z);
let hw = vp.width / 2.0;
let hh = vp.height / 2.0;
vec![
center_grip(0, glam::DVec3::new(cx, cy, cz)),
square_grip(1, glam::DVec3::new(cx + hw, cy + hh, cz)),
square_grip(2, glam::DVec3::new(cx - hw, cy + hh, cz)),
square_grip(3, glam::DVec3::new(cx - hw, cy - hh, cz)),
square_grip(4, glam::DVec3::new(cx + hw, cy - hh, cz)),
]
}
fn properties(vp: &Viewport) -> Vec<PropSection> {
let scale_opts: Vec<String> = STANDARD_SCALES.iter().map(|(s, _)| s.to_string()).collect();
let effective_scale =
crate::scene::vp_effective_scale(vp.custom_scale, vp.view_height, vp.height);
let current_scale_label = scale_label(effective_scale);
let shade_opts: Vec<String> = SHADE_PLOT_LABELS.iter().map(|s| s.to_string()).collect();
let current_shade = shade_plot_label(vp.shade_plot_mode).to_string();
let annotation_scale = if effective_scale.abs() > 1e-9 {
format!("1:{}", scale_label(effective_scale))
} else {
String::new()
};
vec![
PropSection {
title: "Geometry".into(),
props: vec![
edit("Center X", "center_x", vp.center.x),
edit("Center Y", "center_y", vp.center.y),
edit("Center Z", "center_z", vp.center.z),
edit("Height", "vp_h", vp.height),
edit("Width", "vp_w", vp.width),
],
},
PropSection {
title: "Misc".into(),
props: vec![
Property {
label: "On".into(),
field: "vp_on",
value: PropValue::BoolToggle {
field: "vp_on",
value: vp.status.is_on,
},
},
ro(
"Clipped",
"vp_clipped",
if vp.clip_boundary_handle.is_null() { "No" } else { "Yes" },
),
Property {
label: "Display locked".into(),
field: "vp_locked",
value: PropValue::BoolToggle {
field: "vp_locked",
value: vp.status.locked,
},
},
ro("Annotation scale", "vp_anno_scale", annotation_scale),
Property {
label: "Standard scale".into(),
field: "vscale_std",
value: PropValue::Choice {
selected: current_scale_label,
options: scale_opts,
},
},
edit("Custom scale", "vscale", effective_scale),
Property {
label: "UCS per viewport".into(),
field: "vp_ucs_per_vp",
value: PropValue::BoolToggle {
field: "vp_ucs_per_vp",
value: vp.ucs_per_viewport,
},
},
ro(
"Layer property overrides",
"vp_layer_overrides",
if vp.frozen_layers.is_empty() {
"No".to_string()
} else {
format!("Yes ({})", vp.frozen_layers.len())
},
),
ro(
"Visual style",
"vp_visual_style_handle",
if vp.visual_style_handle.is_null() {
"(none)".to_string()
} else {
format!("{:X}", vp.visual_style_handle.value())
},
),
Property {
label: "Shade plot".into(),
field: "vp_shade_plot",
value: PropValue::Choice {
selected: current_shade,
options: shade_opts,
},
},
ro("Linked to Sheet View", "vp_sheet_view", String::new()),
],
},
]
}
fn apply_geom_prop(vp: &mut Viewport, field: &str, value: &str) {
use codec::types::Vector3;
// Boolean / toggle fields handled first (value = "toggle" or "true"/"false").
match field {
"vp_locked" => {
vp.status.locked = if value == "toggle" {
!vp.status.locked
} else {
value == "true"
};
return;
}
"vp_on" => {
vp.status.is_on = if value == "toggle" {
!vp.status.is_on
} else {
value == "true"
};
return;
}
"vp_perspective" => {
vp.status.perspective = if value == "toggle" {
!vp.status.perspective
} else {
value == "true"
};
return;
}
"vp_hide_plot" => {
vp.status.hide_plot = if value == "toggle" {
!vp.status.hide_plot
} else {
value == "true"
};
return;
}
"vp_ucs_icon" => {
vp.ucs_icon_visible = if value == "toggle" {
!vp.ucs_icon_visible
} else {
value == "true"
};
return;
}
"vp_ucs_per_vp" => {
vp.ucs_per_viewport = if value == "toggle" {
!vp.ucs_per_viewport
} else {
value == "true"
};
return;
}
_ => {}
}
// Render mode picker.
if field == "vp_render" {
if let Some(&(_, mode)) = RENDER_MODES.iter().find(|(label, _)| *label == value) {
vp.render_mode = mode;
}
return;
}
// Shade plot mode picker.
if field == "vp_shade_plot" {
if let Some(idx) = SHADE_PLOT_LABELS.iter().position(|&s| s == value) {
vp.shade_plot_mode = idx as i16;
}
return;
}
// Standard view direction picker.
if field == "vp_view" {
let dir: Option<(f64, f64, f64)> = match value {
"Top" => Some((0.0, 0.0, 1.0)),
"Bottom" => Some((0.0, 0.0, -1.0)),
"Front" => Some((0.0, -1.0, 0.0)),
"Back" => Some((0.0, 1.0, 0.0)),
"Left" => Some((-1.0, 0.0, 0.0)),
"Right" => Some((1.0, 0.0, 0.0)),
"SW Isometric" => Some((-1.0, -1.0, 1.0)),
"SE Isometric" => Some((1.0, -1.0, 1.0)),
"NE Isometric" => Some((1.0, 1.0, 1.0)),
"NW Isometric" => Some((-1.0, 1.0, 1.0)),
_ => None,
};
if let Some((dx, dy, dz)) = dir {
let len = (dx * dx + dy * dy + dz * dz).sqrt();
vp.view_direction = Vector3::new(dx / len, dy / len, dz / len);
}
return;
}
// Numeric fields.
let Some(v) = parse_f64(value) else { return };
match field {
"center_x" => vp.center.x = v,
"center_y" => vp.center.y = v,
"center_z" => vp.center.z = v,
"vp_w" if v > 0.0 => vp.width = v,
"vp_h" if v > 0.0 => vp.height = v,
"vscale" if v > 0.0 => {
vp.custom_scale = v;
vp.view_height = vp.height / v;
}
"vtgt_x" => vp.view_target.x = v,
"vtgt_z" => vp.view_target.z = v,
"vp_lens" if v > 0.0 => vp.lens_length = v,
"vp_ucs_ox" => vp.ucs_origin.x = v,
"vp_ucs_oy" => vp.ucs_origin.y = v,
"vp_ucs_oz" => vp.ucs_origin.z = v,
"vp_ucs_xx" => vp.ucs_x_axis.x = v,
"vp_ucs_xy" => vp.ucs_x_axis.y = v,
"vp_ucs_xz" => vp.ucs_x_axis.z = v,
"vp_ucs_yx" => vp.ucs_y_axis.x = v,
"vp_ucs_yy" => vp.ucs_y_axis.y = v,
"vp_ucs_yz" => vp.ucs_y_axis.z = v,
"vp_snap_bx" => vp.snap_base.x = v,
"vp_snap_by" => vp.snap_base.y = v,
"vp_snap_sx" if v >= 0.0 => vp.snap_spacing.x = v,
"vp_snap_sy" if v >= 0.0 => vp.snap_spacing.y = v,
"vp_snap_ang" => vp.snap_angle = v.to_radians(),
"vp_twist" => vp.twist_angle = v.to_radians(),
"vp_front_clip" => vp.front_clip_z = v,
"vp_back_clip" => vp.back_clip_z = v,
"vp_circle_sides" if v >= 0.0 && v <= i16::MAX as f64 => {
vp.circle_sides = v as i16;
}
_ => {}
}
}
fn apply_grip(vp: &mut Viewport, grip_id: usize, apply: GripApply) {
match (grip_id, apply) {
(0, GripApply::Translate(d)) => {
vp.center.x += d.x as f64;
vp.center.y += d.y as f64;
vp.center.z += d.z as f64;
}
(0, GripApply::Absolute(p)) => {
vp.center.x = p.x as f64;
vp.center.y = p.y as f64;
vp.center.z = p.z as f64;
}
(1..=4, GripApply::Absolute(p)) => {
let hw = vp.width * 0.5;
let hh = vp.height * 0.5;
let opposite = match grip_id {
1 => (vp.center.x - hw, vp.center.y - hh),
2 => (vp.center.x + hw, vp.center.y - hh),
3 => (vp.center.x + hw, vp.center.y + hh),
4 => (vp.center.x - hw, vp.center.y + hh),
_ => unreachable!(),
};
resize_from_corners(vp, opposite, (p.x as f64, p.y as f64));
}
_ => {}
}
}
/// Stretch a rectangular paper-space viewport by the corners captured by a
/// crossing window. Bounds that have no captured corner stay anchored.
pub fn stretch(
vp: &mut Viewport,
win_min: glam::DVec3,
win_max: glam::DVec3,
delta: glam::DVec3,
) -> bool {
let hw = vp.width * 0.5;
let hh = vp.height * 0.5;
let (left, right) = (vp.center.x - hw, vp.center.x + hw);
let (bottom, top) = (vp.center.y - hh, vp.center.y + hh);
let inside =
|x: f64, y: f64| x >= win_min.x && x <= win_max.x && y >= win_min.y && y <= win_max.y;
let bottom_left = inside(left, bottom);
let bottom_right = inside(right, bottom);
let top_left = inside(left, top);
let top_right = inside(right, top);
if !(bottom_left || bottom_right || top_left || top_right) {
return false;
}
let moved_left = if bottom_left || top_left {
left + delta.x
} else {
left
};
let moved_right = if bottom_right || top_right {
right + delta.x
} else {
right
};
let moved_bottom = if bottom_left || bottom_right {
bottom + delta.y
} else {
bottom
};
let moved_top = if top_left || top_right {
top + delta.y
} else {
top
};
resize_from_corners(vp, (moved_left, moved_bottom), (moved_right, moved_top))
}
/// Rebuild center and size from two opposite corners while preserving viewport
/// scale as its paper-space height changes.
fn resize_from_corners(vp: &mut Viewport, a: (f64, f64), b: (f64, f64)) -> bool {
let new_width = (b.0 - a.0).abs();
let new_height = (b.1 - a.1).abs();
let mut changed = false;
if new_width > 0.01 {
let new_center_x = (a.0 + b.0) * 0.5;
changed |=
(vp.center.x - new_center_x).abs() > 1e-12 || (vp.width - new_width).abs() > 1e-12;
vp.center.x = new_center_x;
vp.width = new_width;
}
if new_height > 0.01 {
let old_height = vp.height;
let new_center_y = (a.1 + b.1) * 0.5;
changed |=
(vp.center.y - new_center_y).abs() > 1e-12 || (old_height - new_height).abs() > 1e-12;
vp.center.y = new_center_y;
if old_height > 1e-9 && vp.view_height.abs() > 1e-9 {
vp.view_height *= new_height / old_height;
}
vp.height = new_height;
}
changed
}
fn apply_transform(vp: &mut Viewport, t: &EntityTransform) {
crate::scene::view::transform::apply_standard_entity_transform(vp, t, |entity, p1, p2| {
crate::scene::view::transform::reflect_xy_point(
&mut entity.center.x,
&mut entity.center.y,
p1,
p2,
);
});
}
crate::impl_entity_basics!(Viewport);
impl crate::entities::traits::FallbackTess for Viewport {
fn fallback_geometry(
&self,
) -> crate::scene::convert::tess_util::FallbackGeometry {
// A clipped viewport uses its linked boundary entity as its visible
// frame. Drawing the viewport's rectangular extents as well leaves an
// incorrect box around polygonal/Object MVIEW results.
if !self.clip_boundary_handle.is_null() {
return (vec![], vec![], vec![], vec![]);
}
let cx = self.center.x;
let cy = self.center.y;
let cz = self.center.z;
let hw = self.width / 2.0;
let hh = self.height / 2.0;
let pts = vec![
[cx - hw, cy - hh, cz],
[cx + hw, cy - hh, cz],
[cx + hw, cy + hh, cz],
[cx - hw, cy + hh, cz],
[cx - hw, cy - hh, cz],
];
(pts, vec![], vec![], vec![])
}
}