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Design tab: keyboard shortcuts, plane/axis toggles, section view

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- Keyboard shortcuts (Onshape-style, three scoped layers): feature tools on
  Shift+letter, 2D sketch tools on single letters (in-sketch), view/nav on
  single letters (out-of-sketch). Dispatched via the DesignPanel CHAR_HOOK.
- View toggles: P = origin planes, A = world axis triad (render_view_helpers).
- Section view (non-destructive): a single horizontal clip that hides half the
  model to inspect inside, showing only the solid remaining half (no ghost).
  Left-panel "Section View" button or X toggles it; PageUp/PageDown move the
  plane; "Flip Section" button or F shows the opposite half. Never a body/Cut.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01BVzKmX6Y1aEteit1HTXG4Q
This commit is contained in:
Tommaso Bianchi
2026-07-01 23:19:18 +02:00
co-authored by Claude Opus 4.8
parent de16d566b2
commit 1673c2c760
6 changed files with 324 additions and 20 deletions
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src/slic3r/GUI/DesignSketchTool.cpp
+59
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@@ -2887,6 +2887,64 @@ void DesignSketchTool::render_solid_highlight()
// rectangle + border so it is visible in the viewport (Onshape-style finite plane). World
// space, depth-test off so it reads over the bed; indigo to stay distinct from the cyan
// solid-selection tint, orange sketches and amber feature ghosts.
void DesignSketchTool::render_view_helpers()
{
if (!m_show_planes && !m_show_axes) return;
using EPT = GLModel::Geometry::EPrimitiveType;
using EVL = GLModel::Geometry::EVertexLayout;
const Camera& cam = wxGetApp().plater()->get_camera();
const Vec3d vd = cam.get_dir_forward();
const double hw = 1.5 / std::max(cam.get_zoom(), 1e-6); // billboard ribbon half-width (px)
glsafe(::glDisable(GL_DEPTH_TEST));
glsafe(::glEnable(GL_BLEND));
glsafe(::glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA));
if (m_show_planes) {
const double H = 40.0; // half-extent (mm)
SketchPlane pl[3]; // XY / XZ / YZ through the world origin
pl[0].origin = Vec3d(0,0,0); pl[0].x_axis = Vec3d(1,0,0); pl[0].y_axis = Vec3d(0,1,0); pl[0].normal = Vec3d(0,0,1);
pl[1].origin = Vec3d(0,0,0); pl[1].x_axis = Vec3d(1,0,0); pl[1].y_axis = Vec3d(0,0,1); pl[1].normal = Vec3d(0,1,0);
pl[2].origin = Vec3d(0,0,0); pl[2].x_axis = Vec3d(0,1,0); pl[2].y_axis = Vec3d(0,0,1); pl[2].normal = Vec3d(1,0,0);
GLModel::Geometry fill; fill.format = { EPT::Triangles, EVL::P3 };
unsigned int fb = 0;
for (const SketchPlane& p : pl) {
const Vec3d c[4] = { p.to_world(Vec2d(-H,-H)), p.to_world(Vec2d(H,-H)),
p.to_world(Vec2d(H,H)), p.to_world(Vec2d(-H,H)) };
fill.add_vertex((Vec3f)c[0].cast<float>()); fill.add_vertex((Vec3f)c[1].cast<float>());
fill.add_vertex((Vec3f)c[2].cast<float>()); fill.add_triangle(fb, fb+1, fb+2); fb += 3;
fill.add_vertex((Vec3f)c[0].cast<float>()); fill.add_vertex((Vec3f)c[2].cast<float>());
fill.add_vertex((Vec3f)c[3].cast<float>()); fill.add_triangle(fb, fb+1, fb+2); fb += 3;
}
if (fb > 0) { GLModel fm; fm.init_from(std::move(fill));
fm.set_color(ColorRGBA(0.42f, 0.52f, 0.78f, 0.20f)); fm.render(); }
}
if (m_show_axes) {
const double L = 60.0; // axis length (mm)
struct Ax { Vec3d dir; ColorRGBA col; };
const Ax axes[3] = { { Vec3d(1,0,0), ColorRGBA(0.92f, 0.28f, 0.28f, 0.9f) },
{ Vec3d(0,1,0), ColorRGBA(0.30f, 0.80f, 0.34f, 0.9f) },
{ Vec3d(0,0,1), ColorRGBA(0.32f, 0.55f, 0.95f, 0.9f) } };
for (const Ax& ax : axes) {
// Lines don't rasterise under the reused software GL context, so each axis is a
// thin view-facing ribbon (two triangles), like the datum-plane border.
const Vec3d a = Vec3d(0,0,0), b = ax.dir * L;
Vec3d dir = (b - a).normalized();
Vec3d off = dir.cross(vd);
if (off.norm() < 1e-9) off = dir.cross(cam.get_dir_up());
if (off.norm() < 1e-9) continue;
off.normalize(); off *= hw * 1.5;
GLModel::Geometry g; g.format = { EPT::Triangles, EVL::P3 };
g.add_vertex((Vec3f)(a + off).cast<float>()); g.add_vertex((Vec3f)(b + off).cast<float>());
g.add_vertex((Vec3f)(b - off).cast<float>()); g.add_vertex((Vec3f)(a - off).cast<float>());
g.add_triangle(0, 1, 2); g.add_triangle(0, 2, 3);
GLModel m; m.init_from(std::move(g)); m.set_color(ax.col); m.render();
}
}
glsafe(::glDisable(GL_BLEND));
}
void DesignSketchTool::render_datum_planes()
{
if (m_datum_planes.empty()) return;
@@ -6541,6 +6599,7 @@ void DesignSketchTool::render(GLCanvas3D& canvas)
if (on_readout) on_readout(std::string()); // nothing to show -> hide HUD
return;
}
render_view_helpers(); // origin planes / world axes — drawn whenever their toggle is on
if (m_active && m_mode != Mode::Constrain && m_entities.empty() && m_points.empty()
&& m_display_sketches.empty()) {
if (on_readout) on_readout(std::string());