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Reset the CAD document with the project, and track its changes

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New Project and Open Project went through Plater::priv::reset, which
drops ModelObjects but not the Model-level recipe, and never touched
the Design panel's document at all — so the previous design stayed
loaded and its next edit wrote itself into the new project.

A design that has not been committed to the plate has no ModelObjects,
so the project also read as clean: no autosave, and no unsaved-changes
prompt before the reset threw the design away.
This commit is contained in:
SoftFever
2026-08-27 23:35:18 +08:00
parent a1110b0050
commit ba1df32e88
3 changed files with 57 additions and 13 deletions
Download Patch File Download Diff File Expand all files Collapse all files
src/slic3r/GUI/Plater.cpp
+36 -12
View File
@@ -97,6 +97,9 @@
#include "wxExtensions.hpp"
#include "../Utils/PrintHost.hpp"
#include "MainFrame.hpp"
#ifdef SLIC3R_CAD
#include "slic3r/GUI/CAD/DesignPanel.hpp"
#endif
#include "format.hpp"
#include "3DScene.hpp"
#include "GLCanvas3D.hpp"
@@ -8343,6 +8346,9 @@ std::vector<size_t> Plater::priv::load_files(const std::vector<fs::path>& input_
int answer_convert_from_meters = wxOK_DEFAULT;
int answer_convert_from_imperial_units = wxOK_DEFAULT;
int tolal_model_count = 0;
// Whether one of the files being loaded here carried a CAD recipe. A statement about these
// files, not about the plater — q->model() may still hold the previous project's recipe.
bool loaded_cad_recipe = false;
int progress_percent = 0;
int total_files = input_files.size();
@@ -9290,11 +9296,15 @@ std::vector<size_t> Plater::priv::load_files(const std::vector<fs::path>& input_
auto loaded_idxs = load_model_objects(model.objects, is_project_file);
obj_idxs.insert(obj_idxs.end(), loaded_idxs.begin(), loaded_idxs.end());
// load_model_objects only transfers ModelObjects; carry the Model-level CAD
// recipe (Metadata/orca_cad.bin) onto the plater model so the Design tab
// can rehydrate the editable feature tree on reopen.
if (!model.cad_recipe.empty())
// load_model_objects only transfers ModelObjects; carry the Model-level CAD recipe
// onto the plater model so the Design tab can rehydrate the editable feature tree on
// reopen. Assigned unconditionally on the project-replacing path so that opening a
// project without a recipe clears whatever the previous one left behind; importing a
// plain model into the open project leaves the current recipe alone.
if (is_project_file) {
q->model().cad_recipe = model.cad_recipe;
loaded_cad_recipe = !model.cad_recipe.empty();
}
BOOST_LOG_TRIVIAL(info) << __FUNCTION__ << ":" << __LINE__ << boost::format(", finished load_model_objects");
wxString msg = wxString::Format(_L("Loading file: %s"), from_path(real_filename));
@@ -9512,12 +9522,12 @@ std::vector<size_t> Plater::priv::load_files(const std::vector<fs::path>& input_
// q->model().stl_design_country = "";
//}
// A CAD project legitimately carries no mesh: the model lives in the feature tree
// (Metadata/orca_cad.bin) until it is committed to the plate. Warning "no geometry data"
// for one is false, and it is the LAST thing a user sees after opening a design they spent an
// hour on — it reads as "your work is gone" when the recipe has in fact just been loaded and
// the Design tab will rehydrate it. Count the recipe as geometry.
if (tolal_model_count <= 0 && q->model().cad_recipe.empty() && !q->m_exported_file) {
// A CAD project legitimately carries no mesh: the model lives in the feature tree until it is
// committed to the plate. Warning "no geometry data" for one is false, and it is the LAST thing
// a user sees after opening a design they spent an hour on — it reads as "your work is gone"
// when the recipe has in fact just been loaded and the Design tab will rehydrate it. Count a
// recipe that came from THESE files as geometry.
if (tolal_model_count <= 0 && !loaded_cad_recipe && !q->m_exported_file) {
dlg.Hide();
if (!is_user_cancel) {
MessageDialog msg(wxGetApp().mainframe, _L("The file does not contain any geometry data."), _L("Warning"), wxYES | wxICON_WARNING);
@@ -10056,6 +10066,16 @@ void Plater::priv::reset(bool apply_presets_change)
// Stop and reset the Print content.
this->background_process.reset();
model.clear_objects();
// clear_objects() only drops the ModelObjects; the CAD recipe is Model-level state and would
// otherwise be written into every project saved for the rest of the session.
model.cad_recipe.clear();
#ifdef SLIC3R_CAD
// Same reason, one level up: the Design tab keeps the editable document, not the Model, so
// clearing the recipe alone leaves the tab showing the previous project's feature tree —
// and its next edit syncs that tree straight back into the new project.
if (wxGetApp().mainframe != nullptr && wxGetApp().mainframe->m_design_panel != nullptr)
wxGetApp().mainframe->m_design_panel->clear_document();
#endif
assemble_view->get_canvas3d()->reset_explosion_ratio();
update();
@@ -15508,8 +15528,12 @@ bool Plater::up_to_date(bool saved, bool backup)
Slic3r::clear_other_changes(backup);
return p->up_to_date(saved, backup);
}
return p->model.objects.empty() || (p->up_to_date(saved, backup) &&
!Slic3r::has_other_changes(backup));
// A Design-tab project is object-less until it is committed to the plate, but its feature
// tree is real work: treating it as an empty project skipped both the autosave and the
// "unsaved changes" prompt, so quitting threw it away without asking. Non-CAD projects
// never carry a recipe, so the empty-project shortcut is unchanged for them.
return (p->model.objects.empty() && p->model.cad_recipe.empty()) ||
(p->up_to_date(saved, backup) && !Slic3r::has_other_changes(backup));
}
bool Plater::add_model(bool imperial_units, std::string fname)