Code cleanup/comments, more test coverage (92%)

tests/test_editor_images_text_states.py

@@ -0,0 +1,77 @@
+import base64
+from pathlib import Path
+from PySide6.QtCore import QUrl, QByteArray
+from PySide6.QtGui import QImage, QTextCursor, QTextImageFormat, QColor
+from bouquin.theme import ThemeManager
+from bouquin.editor import Editor
+
+
+def _mk_editor(qapp, cfg):
+    themes = ThemeManager(qapp, cfg)
+    ed = Editor(themes)
+    ed.resize(400, 300)
+    return ed
+
+
+def test_image_scale_and_reset(qapp, cfg):
+    ed = _mk_editor(qapp, cfg)
+
+    # Register an image resource and insert it at the cursor
+    img = QImage(20, 10, QImage.Format_ARGB32)
+    img.fill(QColor(200, 0, 0))
+    url = QUrl("test://img")
+    from PySide6.QtGui import QTextDocument
+
+    ed.document().addResource(QTextDocument.ResourceType.ImageResource, url, img)
+
+    fmt = QTextImageFormat()
+    fmt.setName(url.toString())
+    # No explicit width -> code should use original width
+    tc = ed.textCursor()
+    tc.insertImage(fmt)
+
+    # Place cursor at start (on the image) and scale
+    tc = ed.textCursor()
+    tc.movePosition(QTextCursor.Start)
+    ed.setTextCursor(tc)
+    ed._scale_image_at_cursor(1.5)  # increases width
+    ed._reset_image_size()  # restores to original width
+
+    # Ensure resulting HTML contains an <img> tag
+    html = ed.toHtml()
+    assert "<img" in html
+
+
+def test_apply_image_size_fallbacks(qapp, cfg):
+    ed = _mk_editor(qapp, cfg)
+    # Create a dummy image format with no width/height -> fallback branch inside _apply_image_size
+    fmt = QTextImageFormat()
+    fmt.setName("")  # no resource available
+    tc = ed.textCursor()
+    # Insert a single character to have a valid cursor
+    tc.insertText("x")
+    tc.movePosition(QTextCursor.Left, QTextCursor.KeepAnchor, 1)
+    ed._apply_image_size(tc, fmt, new_w=100.0, orig_img=None)  # should not raise
+
+
+def test_to_html_with_embedded_images_and_link_tint(qapp, cfg):
+    ed = _mk_editor(qapp, cfg)
+
+    # Insert an anchor + image and ensure HTML embedding + retint pass runs
+    img = QImage(8, 8, QImage.Format_ARGB32)
+    img.fill(QColor(0, 200, 0))
+    url = QUrl("test://img2")
+    from PySide6.QtGui import QTextDocument
+
+    ed.document().addResource(QTextDocument.ResourceType.ImageResource, url, img)
+
+    # Compose HTML with a link and an image referencing our resource
+    ed.setHtml(
+        f'<p><a href="http://example.com">link</a></p><p><img src="{url.toString()}"></p>'
+    )
+
+    html = ed.to_html_with_embedded_images()
+    # Embedded data URL should appear for the image
+    assert "data:image" in html
+    # The link should still be present (retinted internally) without crashing
+    assert "example.com" in html