feat: show generate elapsed timings

tests/test_gui.py

@@ -1628,9 +1628,15 @@ class GuiTests(TempDirMixin, unittest.TestCase):
             self.assertEqual("标题 0/0", tab.title_progress_label.text())
             self.assertEqual("图片 0/0", tab.cover_progress_label.text())
             self.assertEqual("失败 0", tab.failed_progress_label.text())
+            self.assertTrue(tab.failed_progress_label.isHidden())
+            self.assertEqual("generateTitleElapsedLabel", tab.title_elapsed_label.objectName())
+            self.assertEqual("generateCoverElapsedLabel", tab.cover_elapsed_label.objectName())
+            self.assertEqual("生标题用时 0 秒", tab.title_elapsed_label.text())
+            self.assertEqual("生图用时 0 秒", tab.cover_elapsed_label.text())
+            self.assertEqual(tab.title_elapsed_label.width(), tab.cover_elapsed_label.width())
             self.assertEqual("generateCmhubBalanceLabel", tab.cmhub_balance_label.objectName())
             self.assertEqual("cmhub余额：未获取", tab.cmhub_balance_label.text())
-            self.assertFalse(tab.cmhub_balance_label.isHidden())
+            self.assertTrue(tab.cmhub_balance_label.isHidden())
             self.assertEqual(0, tab.title_progress_bar.value())
             self.assertEqual(0, tab.cover_progress_bar.value())
             self.assertEqual(1, tab.title_progress_bar.maximum())
@@ -1763,7 +1769,67 @@ class GuiTests(TempDirMixin, unittest.TestCase):
                 header.sectionSize(5),
                 delta=5,
             )
-            self.assertGreater(header.sectionSize(4), header.sectionSize(0))
+            self.assertAlmostEqual(
+                header.sectionSize(2),
+                header.sectionSize(3),
+                delta=5,
+            )
+            self.assertLess(header.sectionSize(4), header.sectionSize(1))
+            self.assertGreater(header.sectionSize(2), header.sectionSize(0))
+
+        self.assert_removed(temp_dir)
+
+    def test_generate_elapsed_timer_tracks_title_then_cover(self):
+        with self.make_temp_dir() as temp_dir:
+            tab = GenerateTab(config=self.make_config(temp_dir))
+            self.addCleanup(tab.close)
+
+            self.assertEqual("生标题用时 0 秒", tab.title_elapsed_label.text())
+            self.assertEqual("生图用时 0 秒", tab.cover_elapsed_label.text())
+            self.assertFalse(tab._generate_elapsed_timer.isActive())
+
+            with mock.patch("app.gui.tabs.generate.time.monotonic", return_value=100.0):
+                tab._start_generation_elapsed(title_total=2, cover_total=1)
+            self.assertTrue(tab._generate_elapsed_timer.isActive())
+
+            with mock.patch("app.gui.tabs.generate.time.monotonic", return_value=103.0):
+                tab._refresh_elapsed_labels()
+            self.assertEqual("生标题用时 3 秒", tab.title_elapsed_label.text())
+            self.assertEqual("生图用时 0 秒", tab.cover_elapsed_label.text())
+
+            with mock.patch("app.gui.tabs.generate.time.monotonic", return_value=105.0):
+                tab._sync_generation_elapsed(
+                    {
+                        "total": 3,
+                        "title_total": 2,
+                        "title_done": 2,
+                        "cover_total": 1,
+                        "cover_done": 0,
+                        "generate_cover": True,
+                    }
+                )
+            self.assertEqual("生标题用时 5 秒", tab.title_elapsed_label.text())
+            self.assertEqual("生图用时 0 秒", tab.cover_elapsed_label.text())
+
+            with mock.patch("app.gui.tabs.generate.time.monotonic", return_value=109.0):
+                tab._refresh_elapsed_labels()
+            self.assertEqual("生标题用时 5 秒", tab.title_elapsed_label.text())
+            self.assertEqual("生图用时 4 秒", tab.cover_elapsed_label.text())
+
+            with mock.patch("app.gui.tabs.generate.time.monotonic", return_value=112.0):
+                tab._finish_generation_elapsed(
+                    {
+                        "total": 3,
+                        "title_total": 2,
+                        "title_done": 2,
+                        "cover_total": 1,
+                        "cover_done": 1,
+                        "generate_cover": True,
+                    }
+                )
+            self.assertEqual("生标题用时 5 秒", tab.title_elapsed_label.text())
+            self.assertEqual("生图用时 7 秒", tab.cover_elapsed_label.text())
+            self.assertFalse(tab._generate_elapsed_timer.isActive())
 
         self.assert_removed(temp_dir)
 
@@ -1776,7 +1842,7 @@ class GuiTests(TempDirMixin, unittest.TestCase):
             tab = GenerateTab(config=cfg, status_callback=statuses.append)
             self.addCleanup(tab.close)
 
-            self.assertFalse(tab.cmhub_balance_label.isHidden())
+            self.assertTrue(tab.cmhub_balance_label.isHidden())
             self.assertEqual("cmhub余额：未获取", tab.cmhub_balance_label.text())
 
             tab._on_generate_progress(
@@ -1791,6 +1857,7 @@ class GuiTests(TempDirMixin, unittest.TestCase):
                 }
             )
             self.assertEqual("cmhub余额：88", tab.cmhub_balance_label.text())
+            self.assertTrue(tab.cmhub_balance_label.isHidden())
 
             with mock.patch("app.gui.QMessageBox.warning") as warning:
                 tab._on_generate_finished(