Save and load VPORT params

zecruel · May 2, 2024 · f4a7589 · f4a7589
1 parent 4254e0d
commit f4a7589
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Showing 3 changed files with 125 additions and 7 deletions.
diff --git a/src/dxf_seed.h b/src/dxf_seed.h
@@ -152,9 +152,9 @@ const char *dxf_seed_2007 =
 "21\n"
 "1.0\n"
 "12\n"
-"20.0\n"
+"0.5\n"
 "22\n"
-"320.0\n"
+"0.5\n"
 "13\n"
 "0.0\n"
 "23\n"
@@ -174,15 +174,15 @@ const char *dxf_seed_2007 =
 "36\n"
 "1.0\n"
 "17\n"
-"0.0\n"
+"7.75\n"
 "27\n"
-"0.0\n"
+"15.0\n"
 "37\n"
 "0.0\n"
 "40\n"
-"25.0\n"
+"40.0\n"
 "41\n"
-"1.8\n"
+"0.99\n"
 "42\n"
 "50.0\n"
 "43\n"

diff --git a/src/gui_loop.c b/src/gui_loop.c
@@ -656,8 +656,38 @@ int gui_main_loop (gui_obj *gui) {
         }
       }
 
+      /* get active viewport */
+      start = dxf_find_obj_descr2(gui->drawing->t_vport, "VPORT", "*ACTIVE");
+      if (start) {
+        double x = 0.0, y = 0.0, z = 0.0, h = 1.0, ar = 1.0;
+        part = dxf_find_attr2(start, 17);
+        if (part != NULL){
+          x = part->value.d_data;
+        }
+        part = dxf_find_attr2(start, 27);
+        if (part != NULL){
+          y = part->value.d_data;
+        }
+        part = dxf_find_attr2(start, 37);
+        if (part != NULL){
+          z = part->value.d_data;
+        }
+        part = dxf_find_attr2(start, 40);
+        if (part != NULL){
+          h = part->value.d_data;
+        }
+        part = dxf_find_attr2(start, 41);
+        if (part != NULL){
+          ar = part->value.d_data;
+        }
+        /* convert and apply vport params to display */
+        gui->zoom = 800.0 / h;
+        gui->ofs_x = x - (gui->win_w - 800 * ar)/(2.0 * gui->zoom);
+        gui->ofs_y = y - h / 2.0;
+      }
+      else gui->action = VIEW_ZOOM_EXT;
+
       dxf_ents_parse(gui->drawing);				
-      gui->action = VIEW_ZOOM_EXT;
       gui->layer_idx = dxf_lay_idx (gui->drawing,
         strpool_inject( &name_pool, "0", 1));
       gui->ltypes_idx = dxf_ltype_idx (gui->drawing,
@@ -786,6 +816,37 @@ int gui_main_loop (gui_obj *gui) {
 
     update_title = 1;
 
+    /* get active viewport */
+    start = dxf_find_obj_descr2(gui->drawing->t_vport, "VPORT", "*ACTIVE");
+    if (start) {
+      double x = 0.0, y = 0.0, z = 0.0, h = 1.0, ar = 1.0;
+      part = dxf_find_attr2(start, 17);
+      if (part != NULL){
+        x = part->value.d_data;
+      }
+      part = dxf_find_attr2(start, 27);
+      if (part != NULL){
+        y = part->value.d_data;
+      }
+      part = dxf_find_attr2(start, 37);
+      if (part != NULL){
+        z = part->value.d_data;
+      }
+      part = dxf_find_attr2(start, 40);
+      if (part != NULL){
+        h = part->value.d_data;
+      }
+      part = dxf_find_attr2(start, 41);
+      if (part != NULL){
+        ar = part->value.d_data;
+      }
+      /* convert and apply vport params to display */
+      gui->zoom = 800.0 / h;
+      gui->ofs_x = x - (gui->win_w - 800 * ar)/(2.0 * gui->zoom);
+      gui->ofs_y = y - h / 2.0;
+    }
+    else gui->action = VIEW_ZOOM_EXT;
+
     if (gui->script_resume_reason == YIELD_DRWG_NEW){
       gui->script_resume_reason = YIELD_NONE;
       gui->script_resume = 1;
@@ -909,6 +970,32 @@ int gui_main_loop (gui_obj *gui) {
       dxf_attr_append(gui->drawing->head, 2, gui->list_do.current->uuid, DWG_LIFE);
     }
 
+    /* get active viewport */
+    start = dxf_find_obj_descr2(gui->drawing->t_vport, "VPORT", "*ACTIVE");
+    if (start) {
+      /* convert and apply display params to vport object to store */
+      double x = 0.0, y = 0.0, z = 0.0, h = 1.0, ar = 0.99;
+
+      h = 800.0 / gui->zoom;
+      x = gui->ofs_x + (gui->win_w - 800 * ar)/(2.0 * gui->zoom);
+      y = gui->ofs_y + h / 2.0;
+
+      dxf_attr_change(start, 10, (void *) (double[]){0.0});
+      dxf_attr_change(start, 20, (void *) (double[]){0.0});
+      dxf_attr_change(start, 11, (void *) (double[]){1.0});
+      dxf_attr_change(start, 21, (void *) (double[]){1.0});
+      dxf_attr_change(start, 12, (void *) (double[]){0.5});
+      dxf_attr_change(start, 22, (void *) (double[]){0.5});
+      dxf_attr_change(start, 16, (void *) (double[]){0.0});
+      dxf_attr_change(start, 26, (void *) (double[]){0.0});
+      dxf_attr_change(start, 36, (void *) (double[]){1.0});
+      dxf_attr_change(start, 17, (void *) &x);
+      dxf_attr_change(start, 27, (void *) &y);
+      dxf_attr_change(start, 37, (void *) &z);
+      dxf_attr_change(start, 40, (void *) &h);
+      dxf_attr_change(start, 41, (void *) &ar);
+    }
+
     if (dxf_save (gui->curr_path, gui->drawing)){
       if (strncmp (gui->dwg_dir, get_dir(gui->curr_path) , PATH_MAX_CHARS) == 0 &&
         strncmp (gui->dwg_file, get_filename(gui->curr_path) , DXF_MAX_CHARS) == 0 )

diff --git a/src/main.c b/src/main.c
@@ -496,6 +496,37 @@ int main(int argc, char** argv){
     dxf_attr_append(gui->drawing->head, 2, uuid_str, DWG_LIFE);
   }
 
+  /* get active viewport */
+  start = dxf_find_obj_descr2(gui->drawing->t_vport, "VPORT", "*ACTIVE");
+  if (start) {
+    double x = 0.0, y = 0.0, z = 0.0, h = 1.0, ar = 1.0;
+    part = dxf_find_attr2(start, 17);
+    if (part != NULL){
+      x = part->value.d_data;
+    }
+    part = dxf_find_attr2(start, 27);
+    if (part != NULL){
+      y = part->value.d_data;
+    }
+    part = dxf_find_attr2(start, 37);
+    if (part != NULL){
+      z = part->value.d_data;
+    }
+    part = dxf_find_attr2(start, 40);
+    if (part != NULL){
+      h = part->value.d_data;
+    }
+    part = dxf_find_attr2(start, 41);
+    if (part != NULL){
+      ar = part->value.d_data;
+    }
+    /* convert and apply vport params to display */
+    gui->zoom = 800.0 / h;
+    gui->ofs_x = x - (gui->win_w - 800 * ar)/(2.0 * gui->zoom);
+    gui->ofs_y = y - h / 2.0;
+  }
+  else gui->action = VIEW_ZOOM_EXT;
+
   strncpy (gui->list_do.current->uuid, uuid_str, ACT_CHARS - 1);
   gui->list_do.current->time = curr_time;