SPE-2103

Make snap-shot to undo/redo stack only on release slider

Connected with attributes:
Text/advanced(char gap, line gap, boldness, skew ratio)
SVG(size)

Also change range for Boldness. VRT font-Ascent.
(different font may have different slider value range)

Fix line gap (it was denied when per glyph was false)

src/slic3r/GUI/Gizmos/GLGizmoEmboss.cpp

@@ -96,7 +96,7 @@ static const struct Limits
 {
     MinMax<double> emboss{0.01, 1e4}; // in mm
     MinMax<float> size_in_mm{0.1f, 1000.f}; // in mm
-    Limit<float> boldness{{-200.f, 200.f}, {-2e4f, 2e4f}}; // in font points
+    Limit<float> boldness{{-.5f, .5f}, {-5e5f, 5e5f}}; // in font points
     Limit<float> skew{{-1.f, 1.f}, {-100.f, 100.f}}; // ration without unit
     MinMax<int>  char_gap{-20000, 20000}; // in font points
     MinMax<int>  line_gap{-20000, 20000}; // in font points
@@ -380,7 +380,7 @@ bool GLGizmoEmboss::re_emboss(const ModelVolume &text_volume, std::shared_ptr<st
     TextLinesModel text_lines;
     const Selection &selection = wxGetApp().plater()->canvas3D()->get_selection();
     DataBasePtr base = create_emboss_data_base(tc.text, style_manager, text_lines, selection, text_volume.type(), job_cancel);
-    DataUpdate  data{std::move(base), text_volume.id()};
+    DataUpdate  data{std::move(base), text_volume.id(), false};
 
     RaycastManager raycast_manager; // Nothing is cached now, so It need to create raycasters
     return start_update_volume(std::move(data), text_volume, selection, raycast_manager);
@@ -1316,7 +1316,7 @@ namespace {
 bool is_text_empty(std::string_view text) { return text.empty() || text.find_first_not_of(" \n\t\r") == std::string::npos; }
 } // namespace
 
-bool GLGizmoEmboss::process()
+bool GLGizmoEmboss::process(bool make_snapshot)
 {
     // no volume is selected -> selection from right panel
     assert(m_volume != nullptr);
@@ -1330,7 +1330,7 @@ bool GLGizmoEmboss::process()
 
     const Selection& selection = m_parent.get_selection();
     DataBasePtr base = create_emboss_data_base(m_text, m_style_manager, m_text_lines, selection, m_volume->type(), m_job_cancel);
-    DataUpdate  data{std::move(base), m_volume->id()};
+    DataUpdate  data{std::move(base), m_volume->id(), make_snapshot};
 
     // check valid count of text lines
     assert(data.base->text_lines.empty() || data.base->text_lines.size() == get_count_lines(m_text));
@@ -2665,7 +2665,6 @@ void GLGizmoEmboss::draw_advanced()
     m_imgui->text_colored(ImGuiWrapper::COL_GREY_DARK, ff_property);
 #endif // SHOW_FONT_FILE_PROPERTY
 
-    bool exist_change = false;
     auto &tr = m_gui_cfg->translations;
 
     const StyleManager::Style *stored_style = nullptr;
@@ -2757,6 +2756,7 @@ void GLGizmoEmboss::draw_advanced()
     auto def_char_gap = stored_style ?
         &stored_style->prop.char_gap : nullptr;
 
+    bool exist_change = false;
     int half_ascent = font_info.ascent / 2;
     int min_char_gap = -half_ascent;
     int max_char_gap = half_ascent;
@@ -2772,13 +2772,16 @@ void GLGizmoEmboss::draw_advanced()
             exist_change = true;
         }
     }
+    bool last_change = false;
+    if (m_imgui->get_last_slider_status().deactivated_after_edit)
+        last_change = true;
 
     // input gap between lines
-    bool is_multiline = m_text_lines.get_lines().size() > 1;
+    bool is_multiline = get_count_lines(m_volume->text_configuration->text) > 1; // TODO: cache count lines
     m_imgui->disabled_begin(!is_multiline);
     auto def_line_gap = stored_style ?
         &stored_style->prop.line_gap : nullptr;
-    int  min_line_gap = -half_ascent;
+    int min_line_gap = -half_ascent;
     int max_line_gap = half_ascent;
     if (rev_slider(tr.line_gap, current_prop.line_gap, def_line_gap, _u8L("Revert gap between lines"), 
         min_line_gap, max_line_gap, units_fmt, _L("Distance between lines"))){
@@ -2793,18 +2796,24 @@ void GLGizmoEmboss::draw_advanced()
             exist_change = true;
         }
     }
+    if (m_imgui->get_last_slider_status().deactivated_after_edit)
+        last_change = true;
     m_imgui->disabled_end(); // !is_multiline
 
     // input boldness
     auto def_boldness = stored_style ?
         &stored_style->prop.boldness : nullptr;
+    int min_boldness = static_cast<int>(font_info.ascent * limits.boldness.gui.min);
+    int max_boldness = static_cast<int>(font_info.ascent * limits.boldness.gui.max);
     if (rev_slider(tr.boldness, current_prop.boldness, def_boldness, _u8L("Undo boldness"), 
-        limits.boldness.gui.min, limits.boldness.gui.max, units_fmt, _L("Tiny / Wide glyphs"))){
+        min_boldness, max_boldness, units_fmt, _L("Tiny / Wide glyphs"))){
         const std::optional<float> &volume_boldness = m_volume->text_configuration->style.prop.boldness;
         if (!apply(current_prop.boldness, limits.boldness.values) ||
             !volume_boldness.has_value() || volume_boldness != current_prop.boldness)
             exist_change = true;
     }
+    if (m_imgui->get_last_slider_status().deactivated_after_edit)
+        last_change = true;
 
     // input italic
     auto def_skew = stored_style ?
@@ -2816,6 +2825,8 @@ void GLGizmoEmboss::draw_advanced()
             !volume_skew.has_value() ||volume_skew != current_prop.skew)
             exist_change = true;
     }
+    if (m_imgui->get_last_slider_status().deactivated_after_edit)
+        last_change = true;
     
     // input surface distance
     bool allowe_surface_distance = !use_surface && !m_volume->is_the_only_one_part();
@@ -2855,15 +2866,18 @@ void GLGizmoEmboss::draw_advanced()
 
     if (is_moved){
         if (font_prop.per_glyph){
-            process();
+            process(false);
         } else {
             do_local_z_move(m_parent.get_selection(), distance.value_or(.0f) - prev_distance);
         }        
     }
 
     // Apply move to model(backend)
-    if (m_imgui->get_last_slider_status().deactivated_after_edit)
-        m_parent.do_rotate(move_snapshot_name);
+    if (m_imgui->get_last_slider_status().deactivated_after_edit) {
+        m_parent.do_move(move_snapshot_name);
+        if (font_prop.per_glyph)
+            process();
+    }
 
     m_imgui->disabled_end();  // allowe_surface_distance
 
@@ -2901,11 +2915,17 @@ void GLGizmoEmboss::draw_advanced()
 
         // recalculate for surface cut
         if (use_surface || font_prop.per_glyph) 
-            process();
+            process(false);
     }
+
     // Apply rotation on model (backend)
-    if (m_imgui->get_last_slider_status().deactivated_after_edit)
-        m_parent.do_rotate(rotation_snapshot_name);    
+    if (m_imgui->get_last_slider_status().deactivated_after_edit) {
+        m_parent.do_rotate(rotation_snapshot_name);
+
+        // recalculate for surface cut
+        if (use_surface || font_prop.per_glyph)
+            process();
+    }
 
     // Keep up - lock button icon
     if (!m_volume->is_the_only_one_part()) {
@@ -2937,6 +2957,7 @@ void GLGizmoEmboss::draw_advanced()
                     if (i == 0) current_prop.collection_number.reset();
                     else current_prop.collection_number = i;
                     exist_change = true;
+                    last_change = true;
                 }
                 ImGui::PopID();
             }
@@ -2946,13 +2967,13 @@ void GLGizmoEmboss::draw_advanced()
         }
     }
 
-    if (exist_change) {
+    if (exist_change || last_change) {
         m_style_manager.clear_glyphs_cache();
-        if (m_style_manager.get_font_prop().per_glyph)
+        if (font_prop.per_glyph)
             reinit_text_lines();
         else
             m_text_lines.reset();
-        process();
+        process(last_change);
     }
 
     if (ImGui::Button(_u8L("Set text to face camera").c_str())) {

src/slic3r/GUI/Gizmos/GLGizmoEmboss.hpp

@@ -114,7 +114,7 @@ private:
     void reset_volume();
 
     // create volume from text - main functionality
-    bool process();
+    bool process(bool make_snapshot = true);
     void close();
     void draw_window();
     void draw_text_input();

src/slic3r/GUI/Gizmos/GLGizmoSVG.cpp

@@ -1274,8 +1274,7 @@ void GLGizmoSVG::calculate_scale() {
 float GLGizmoSVG::get_scale_for_tolerance(){ 
     return std::max(m_scale_width.value_or(1.f), m_scale_height.value_or(1.f)); }
 
-bool GLGizmoSVG::process()
-{
+bool GLGizmoSVG::process(bool make_snapshot) {
     // no volume is selected -> selection from right panel
     assert(m_volume != nullptr);
     if (m_volume == nullptr) 
@@ -1296,7 +1295,7 @@ bool GLGizmoSVG::process()
     EmbossShape shape = m_volume_shape; // copy
     auto base = std::make_unique<DataBase>(m_volume->name, m_job_cancel, std::move(shape));
     base->is_outside = m_volume->type() == ModelVolumeType::MODEL_PART;
-    DataUpdate data{std::move(base), m_volume_id};
+    DataUpdate data{std::move(base), m_volume_id, make_snapshot};
     return start_update_volume(std::move(data), *m_volume, m_parent.get_selection(), m_raycast_manager);    
 }
 
@@ -1690,6 +1689,8 @@ void GLGizmoSVG::draw_size()
     };
 
     std::optional<Vec3d> new_relative_scale;
+    bool make_snap = false;
+
     if (m_keep_ratio) {
         std::stringstream ss;
         ss << std::setprecision(2) << std::fixed << width << " x " << height << " " << (use_inch ? "in" : "mm");
@@ -1708,6 +1709,8 @@ void GLGizmoSVG::draw_size()
                 new_relative_scale = Vec3d(width_ratio, width_ratio, 1.);
             }
         }
+        if (m_imgui->get_last_slider_status().deactivated_after_edit)
+            make_snap = true; // only last change of slider make snap
     } else {
         ImGuiInputTextFlags flags = 0;
 
@@ -1727,6 +1730,7 @@ void GLGizmoSVG::draw_size()
             if (is_valid_scale_ratio(width_ratio)) {
                 m_scale_width = m_scale_width.value_or(1.f) * width_ratio;
                 new_relative_scale = Vec3d(width_ratio, 1., 1.);
+                make_snap = true;
             }
         }
         if (ImGui::IsItemHovered())
@@ -1740,6 +1744,7 @@ void GLGizmoSVG::draw_size()
             if (is_valid_scale_ratio(height_ratio)) {
                 m_scale_height = m_scale_height.value_or(1.f) * height_ratio;
                 new_relative_scale  = Vec3d(1., height_ratio, 1.);
+                make_snap = true;
             }
         }
         if (ImGui::IsItemHovered())
@@ -1761,6 +1766,7 @@ void GLGizmoSVG::draw_size()
     if (can_reset) {
         if (reset_button(m_icons)) {
             new_relative_scale = Vec3d(1./m_scale_width.value_or(1.f), 1./m_scale_height.value_or(1.f), 1.);
+            make_snap = true;
         } else if (ImGui::IsItemHovered())
             ImGui::SetTooltip("%s", _u8L("Reset scale").c_str());
     }
@@ -1774,20 +1780,25 @@ void GLGizmoSVG::draw_size()
         };        
         selection_transform(selection, selection_scale_fnc);
 
-        m_parent.do_scale(L("Resize"));
+        std::string snap_name; // Empty mean do not store on undo/redo stack
+        m_parent.do_scale(snap_name);
         wxGetApp().obj_manipul()->set_dirty();
         // should be the almost same
         calculate_scale();
                 
-        NSVGimage *img = m_volume_shape.svg_file->image.get();
+        const NSVGimage *img = m_volume_shape.svg_file->image.get();
         assert(img != NULL);
         if (img != NULL){
             NSVGLineParams params{get_tesselation_tolerance(get_scale_for_tolerance())};
             m_volume_shape.shapes_with_ids = create_shape_with_ids(*img, params);
             m_volume_shape.final_shape = {}; // reset cache for final shape
-            process();        
+            if (!make_snap) // Be carefull: Last change may be without change of scale
+                process(false);
         }
     }
+
+    if (make_snap)
+        process(); // make undo/redo snap-shot
 }
 
 void GLGizmoSVG::draw_use_surface() 

src/slic3r/GUI/Gizmos/GLGizmoSVG.hpp

@@ -112,7 +112,7 @@ private:
     void reset_volume();
 
     // create volume from text - main functionality
-    bool process();
+    bool process(bool make_snapshot = true);
     void close();
     void draw_window();
     void draw_preview();

src/slic3r/GUI/Jobs/EmbossJob.cpp

@@ -1031,10 +1031,13 @@ void update_volume(TriangleMesh &&mesh, const DataUpdate &data, const Transform3
     assert(plater->canvas3D()->get_gizmos_manager().get_current_type() == GLGizmosManager::Emboss ||
            plater->canvas3D()->get_gizmos_manager().get_current_type() == GLGizmosManager::Svg);
 
-    // TRN: This is the name of the action appearing in undo/redo stack.
-    std::string          snap_name = _u8L("Text/SVG attribute change");
-    Plater::TakeSnapshot snapshot(plater, snap_name, UndoRedo::SnapshotType::GizmoAction);
-        
+    if (data.make_snapshot) {
+        // TRN: This is the title of the action appearing in undo/redo stack.
+        // It is same for Text and SVG.
+        std::string snap_name = _u8L("Emboss attribute change");
+        Plater::TakeSnapshot snapshot(plater, snap_name, UndoRedo::SnapshotType::GizmoAction);
+    }
+
     ModelVolume *volume = get_model_volume(data.volume_id, plater->model().objects);   
 
     // could appear when user delete edited volume

src/slic3r/GUI/Jobs/EmbossJob.hpp

@@ -113,6 +113,9 @@ struct DataUpdate
 
     // unique identifier of volume to change
     ObjectID volume_id;
+
+    // Used for prevent flooding Undo/Redo stack on slider.
+    bool make_snapshot;
 };
 
 /// <summary>