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Slightly fade the text of a checkbox line if the checkbox is checked.

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This commit is contained in:
Miguel Jacq 2025-11-28 15:05:10 +11:00
parent e160827708
commit 1a56fa80ca
Signed by: mig5
GPG key ID: 59B3F0C24135C6A9
2 changed files with 38 additions and 10 deletions
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1
CHANGELOG.md
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@ -5,6 +5,7 @@
* Change History icon (again)
* Make it easier to check on or off the checkbox by adding some buffer (instead of having to precisely click inside it)
* Prevent double-click of checkbox leading to selecting/highlighting it
* Slightly fade the text of a checkbox line if the checkbox is checked.
# 0.5.2

47
bouquin/markdown_highlighter.py
View file

@ -78,17 +78,18 @@ class MarkdownHighlighter(QSyntaxHighlighter):
self.theme_manager.current() == Theme.DARK
or self.theme_manager._is_system_dark
):
# In dark mode, use a darker panel-like background
bg = pal.color(QPalette.AlternateBase)
fg = pal.color(QPalette.Text)
# In dark mode, use a darker panel-like background for codeblocks
code_bg = pal.color(QPalette.AlternateBase)
code_fg = pal.color(QPalette.Text)
else:
# Light mode: keep the existing light gray
bg = QColor(245, 245, 245)
fg = QColor( # pragma: no cover
# Light mode: keep the existing light gray for code blocks
code_bg = QColor(245, 245, 245)
code_fg = QColor( # pragma: no cover
0, 0, 0
) # avoiding using QPalette.Text as it can be white on macOS
self.code_block_format.setBackground(bg)
self.code_block_format.setForeground(fg)
self.code_block_format.setBackground(code_bg)
self.code_block_format.setForeground(code_fg)
# Headings
self.h1_format = QTextCharFormat()
@ -110,6 +111,23 @@ class MarkdownHighlighter(QSyntaxHighlighter):
self.link_format.setFontUnderline(True)
self.link_format.setAnchor(True)
# ---- Completed-task text (for checked checkboxes) ----
# Use the app palette so this works in both light and dark themes.
text_fg = pal.color(QPalette.Text)
text_bg = pal.color(QPalette.Base)
# Blend the text colour towards the background to "fade" it.
# t closer to 1.0 = closer to background / more faded.
t = 0.55
faded = QColor(
int(text_fg.red() * (1.0 - t) + text_bg.red() * t),
int(text_fg.green() * (1.0 - t) + text_bg.green() * t),
int(text_fg.blue() * (1.0 - t) + text_bg.blue() * t),
)
self.completed_task_format = QTextCharFormat()
self.completed_task_format.setForeground(faded)
# Checkboxes
self.checkbox_format = QTextCharFormat()
self.checkbox_format.setVerticalAlignment(QTextCharFormat.AlignMiddle)
@ -140,8 +158,7 @@ class MarkdownHighlighter(QSyntaxHighlighter):
# Markdown syntax (the markers themselves) - make invisible
self.syntax_format = QTextCharFormat()
# Use the editor background color so they blend in
bg = pal.color(QPalette.Base)
hidden = QColor(bg)
hidden = QColor(text_bg)
hidden.setAlpha(0)
self.syntax_format.setForeground(hidden)
# Make the markers invisible by setting font size to 0.1 points
@ -342,3 +359,13 @@ class MarkdownHighlighter(QSyntaxHighlighter):
# (If you add Unicode bullets later…)
for m in re.finditer(r"•", text):
self._overlay_range(m.start(), 1, self.bullet_format)
# Completed checkbox lines: fade the text after the checkbox.
m = re.match(r"^(\s*☑\s+)(.+)$", text)
if m and hasattr(self, "completed_task_format"):
prefix = m.group(1)
content = m.group(2)
start = len(prefix)
length = len(content)
if length > 0:
self._overlay_range(start, length, self.completed_task_format)