Actual link addition

src/main.py

@@ -10,20 +10,43 @@ RECT_START = None
 
 
 class AddLinkDialog:
-    def __init__(self, root, rect, toc) -> None:
+    def __init__(self, root, page, rect, toc) -> None:
         self.top = tkinter.Toplevel(root)
         frm = ttk.Frame(self.top, padding=10)
         frm.grid()
 
+        self.rect = rect
+        self.page = page
+        self.toc = toc
         toc_values = list(t for _, t, _ in toc)
 
         ttk.Label(frm, text=f"Rectangle: {rect!r}").grid(column=0, row=0, columnspan=3)
         ttk.Label(frm, text="Target:").grid(column=0, row=1)
-        entry = ttk.Entry(frm)
+        self.entry = ttk.Combobox(frm, values=toc_values)
-        entry.grid(column=1, row=1, columnspan=2, sticky="EW")
+        self.entry.grid(column=1, row=1, columnspan=2, sticky="EW")
-        ttk.Button(frm, text="Add", command=self.top.destroy).grid(column=2, row=2)
+        ttk.Button(frm, text="Add", command=self.do_add_link).grid(column=2, row=2)
         ttk.Button(frm, text="Cancel", command=self.top.destroy).grid(column=3, row=2)
 
+    def do_add_link(self):
+        toc_title = self.entry.get()
+        page = 0
+        for _, t, p in self.toc:
+            if toc_title == t:
+                page = p - 1
+                break
+        else:
+            raise Exception("TOC page not found")
+
+        self.page.insert_link(
+            {
+                "kind": pymupdf.LINK_GOTO,
+                "from": pymupdf.Rect(self.rect),
+                "page": page,
+            }
+        )
+
+        self.top.destroy()
+
 
 def main() -> None:
     parser = argparse.ArgumentParser()
@@ -72,7 +95,7 @@ def main() -> None:
 
         def load_page(page_num: int, rect_overlay=None):
             page = doc[page_num]
-            pix = page.get_pixmap(dpi=120)
+            pix = page.get_pixmap(dpi=72)
 
             mode = "RGBA" if pix.alpha else "RGB"
             img = Image.frombytes(mode, [pix.width, pix.height], pix.samples)
@@ -101,13 +124,12 @@ def main() -> None:
             if RECT_START is not None:
                 print(f"UP @ {event.x}/{event.y}")
                 load_page(CURRENT_PAGE, [*RECT_START, event.x, event.y])
-                AddLinkDialog(root, [*RECT_START, event.x, event.y], toc)
+                AddLinkDialog(root, doc[CURRENT_PAGE], [*RECT_START, event.x, event.y], toc)
                 RECT_START = None
 
         page_view.bind("<ButtonPress>", start_rect)
         page_view.bind("<ButtonRelease>", end_rect)
 
-
         def next_page():
             global CURRENT_PAGE
             CURRENT_PAGE += 1
@@ -125,6 +147,14 @@ def main() -> None:
             column=3, row=1, sticky="NS", padx=5, pady=5
         )
 
+        def save_and_close():
+            doc.save("/tmp/outfile.pdf")
+            root.destroy()
+
+        ttk.Button(frm, text="Save & Close", command=save_and_close).grid(
+            column=1, row=2, columnspan=3, sticky="EW"
+        )
+
         root.bind("<Up>", lambda _: previous_page())
         root.bind("<Left>", lambda _: previous_page())
         root.bind("<Prior>", lambda _: previous_page())