PDF underlays: attach prompts and definitions, display adjustments and clipping, Properties, snapping, PDFCLIP and PDFIMPORT

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

src/app/commands/blocks.rs

@@ -660,8 +660,48 @@ impl OpenCADStudio {
                 self.open_attedit_dialog();
             }
 
-            "PDFATTACH" => {
-                return Some(Task::done(Message::PdfAttachPick));
+            "PDFIMPORT" => {
+                use crate::command::CadCommand;
+                let command = crate::modules::insert::pdf_import::PdfImportCommand::new();
+                self.command_line.push_info(&command.prompt());
+                self.tabs[i].active_cmd = Some(Box::new(command));
+            }
+            "_PDFIMPORTFILE" => {
+                return Some(Task::done(Message::PdfImportPick));
+            }
+            "PDFCLIP" | "CLIP" => {
+                use crate::command::CadCommand;
+                let command = crate::modules::insert::pdf_clip::PdfClipCommand::new(cmd == "CLIP");
+                self.command_line.push_info(&command.prompt());
+                self.tabs[i].active_cmd = Some(Box::new(command));
+            }
+            // PDFATTACH picks the file; -PDFATTACH asks for it on the command
+            // line. A path after either names the file at once.
+            cmd if matches!(
+                cmd.split_whitespace().next().map(|v| v.to_ascii_uppercase()).as_deref(),
+                Some("PDFATTACH") | Some("-PDFATTACH")
+            ) =>
+            {
+                use crate::command::CadCommand;
+                let (verb, rest) = cmd
+                    .split_once(char::is_whitespace)
+                    .map(|(verb, rest)| (verb.to_ascii_uppercase(), rest.trim()))
+                    .unwrap_or_else(|| (cmd.to_ascii_uppercase(), ""));
+                if verb == "PDFATTACH" && rest.is_empty() {
+                    return Some(Task::done(Message::PdfAttachPick));
+                }
+                let insunits = self.tabs[i].scene.document.header.insertion_units;
+                let mut command =
+                    crate::modules::insert::pdf_attach::PdfAttachCommand::new(insunits);
+                if !rest.is_empty() {
+                    if let Some(crate::command::CmdResult::ReportError(message)) =
+                        command.on_text_input(rest)
+                    {
+                        self.command_line.push_error(&message);
+                    }
+                }
+                self.command_line.push_info(&command.prompt());
+                self.tabs[i].active_cmd = Some(Box::new(command));
             }
             "XATTACH" => {
                 // Launch the file picker; XAttachPickResult will start the command.