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main.py
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main.py
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from PyQt5.QtWidgets import (QApplication, QMainWindow, QSplitter,
QTextEdit, QWidget, QVBoxLayout, QHBoxLayout,
QPushButton, QLabel, QFileDialog, QSizeGrip, QGraphicsDropShadowEffect)
from PyQt5.QtWebEngineWidgets import QWebEngineView
from PyQt5.QtCore import Qt, QPoint
from PyQt5.QtGui import QIcon, QColor
import sys
import markdown
import os
class MarkdownEditor(QMainWindow):
def __init__(self):
super().__init__()
self.setWindowFlags(Qt.Window | Qt.FramelessWindowHint)
self.setAttribute(Qt.WA_TranslucentBackground)
self.dragPos = None
self.maximizeButton = None
# Add shadow effect
self.shadow = QGraphicsDropShadowEffect(self)
self.shadow.setBlurRadius(20)
self.shadow.setXOffset(0)
self.shadow.setYOffset(0)
self.shadow.setColor(QColor(0, 0, 0, 100))
# Create central widget to hold everything
self.central_widget = QWidget()
self.central_widget.setObjectName("centralWidget")
self.central_widget.setGraphicsEffect(self.shadow)
self.setCentralWidget(self.central_widget)
# Set the window icon
icon_path = os.path.join('assets', 'icon.ico')
if os.path.exists(icon_path):
self.setWindowIcon(QIcon(icon_path))
self.load_styles()
self.initUI()
self.current_file = None
def load_styles(self):
# Load Qt stylesheet
qt_style_path = os.path.join('styles', 'qt_style.qss')
with open(qt_style_path, 'r') as f:
self.qt_style = f.read()
# Load HTML stylesheet
html_style_path = os.path.join('styles', 'html_style.css')
with open(html_style_path, 'r') as f:
self.html_style = f.read()
def initUI(self):
self.setWindowTitle('Markdown Editor with Preview')
# Apply Qt stylesheet
self.setStyleSheet(self.qt_style)
# Create main widget and layout
main_widget = QWidget()
self.setCentralWidget(main_widget)
layout = QVBoxLayout(main_widget)
# Create splitter for side-by-side layout
splitter = QSplitter(Qt.Horizontal)
# Create text editor
self.editor = QTextEdit()
self.editor.setPlaceholderText("Enter Markdown text here...")
self.editor.textChanged.connect(self.update_preview)
# Create web view for preview
self.preview = QWebEngineView()
# Add widgets to splitter
splitter.addWidget(self.editor)
splitter.addWidget(self.preview)
# Set initial sizes for splitter
splitter.setSizes([400, 400])
# Add splitter to layout
layout.addWidget(splitter)
# Set initial HTML content with MathJax configuration
self.base_html = '''
<html>
<head>
<script type="text/javascript" async
src="https://cdnjs.cloudflare.com/ajax/libs/mathjax/2.7.7/MathJax.js?config=TeX-MML-AM_CHTML">
</script>
<script type="text/x-mathjax-config">
MathJax.Hub.Config({{
tex2jax: {{
inlineMath: [['$','$'], ['\\(','\\)']],
displayMath: [['$$','$$'], ['\\[','\\]']],
processEscapes: true
}}
}});
</script>
<style>
{style}
</style>
</head>
<body>
{content}
</body>
</html>
'''
# Set initial size of the window
self.resize(1200, 800)
# Load initial markdown content from example.md
example_path = os.path.join('deck', 'example.md')
try:
with open(example_path, 'r', encoding='utf-8') as file:
initial_markdown = file.read()
except FileNotFoundError:
initial_markdown = "# Welcome to Markedit\n\nStart typing your markdown here..."
self.editor.setText(initial_markdown)
# Create a custom title bar
titleBar = QWidget(self)
titleBar.setObjectName("titleBar")
titleBarLayout = QHBoxLayout(titleBar)
titleBarLayout.setContentsMargins(5, 2, 5, 2)
titleBarLayout.setSpacing(4)
# Add title label with smaller font
titleLabel = QLabel("Markedit", titleBar)
titleLabel.setStyleSheet("color: #e0e0e0; font-size: 11px; padding-left: 3px;")
# Add window control buttons with smaller size
minimizeButton = QPushButton("−", titleBar)
minimizeButton.setObjectName("minimizeButton")
minimizeButton.setFixedSize(16, 16)
minimizeButton.clicked.connect(self.showMinimized)
# Initialize maximizeButton properly
self.maximizeButton = QPushButton("□", titleBar)
self.maximizeButton.setObjectName("maximizeButton")
self.maximizeButton.setFixedSize(16, 16)
self.maximizeButton.clicked.connect(self.toggleMaximized)
closeButton = QPushButton("×", titleBar)
closeButton.setObjectName("closeButton")
closeButton.setFixedSize(16, 16)
closeButton.clicked.connect(self.close)
titleBarLayout.addWidget(titleLabel)
titleBarLayout.addStretch()
titleBarLayout.addWidget(minimizeButton)
titleBarLayout.addWidget(self.maximizeButton)
titleBarLayout.addWidget(closeButton)
# Add the title bar to the main layout
mainLayout = QVBoxLayout()
mainLayout.setContentsMargins(0, 0, 0, 0)
mainLayout.setSpacing(0)
mainLayout.addWidget(titleBar)
# Create toolbar
toolBar = QWidget()
toolBar.setObjectName("toolBar")
toolBarLayout = QHBoxLayout(toolBar)
toolBarLayout.setContentsMargins(5, 2, 5, 2)
toolBarLayout.setSpacing(4)
# Create toolbar buttons
openButton = QPushButton("Open", toolBar)
openButton.setObjectName("toolBarButton")
openButton.clicked.connect(self.open_file)
saveButton = QPushButton("Save", toolBar)
saveButton.setObjectName("toolBarButton")
saveButton.clicked.connect(self.save_file)
#saveAsButton = QPushButton("Save As", toolBar)
#saveAsButton.setObjectName("toolBarButton")
#saveAsButton.clicked.connect(self.save_file_as)
# Add buttons to toolbar
toolBarLayout.addWidget(openButton)
toolBarLayout.addWidget(saveButton)
#toolBarLayout.addWidget(saveAsButton)
toolBarLayout.addStretch()
# Create a container for the main content and size grip
container = QWidget()
containerLayout = QVBoxLayout(container)
containerLayout.setContentsMargins(0, 0, 0, 0)
containerLayout.setSpacing(0)
# Add the splitter to the container
containerLayout.addWidget(splitter)
# Create a bottom bar for the size grip
bottomBar = QWidget()
bottomBar.setObjectName("bottomBar")
bottomBarLayout = QHBoxLayout(bottomBar)
bottomBarLayout.setContentsMargins(0, 0, 0, 0)
# Add stretch to push size grip to the right
bottomBarLayout.addStretch()
# Create and add the size grip
sizeGrip = QSizeGrip(bottomBar)
sizeGrip.setObjectName("sizeGrip")
bottomBarLayout.addWidget(sizeGrip)
# Add the bottom bar to the container
containerLayout.addWidget(bottomBar)
# Modify main layout to include the container
mainLayout = QVBoxLayout()
mainLayout.setContentsMargins(0, 0, 0, 0)
mainLayout.setSpacing(0)
mainLayout.addWidget(titleBar)
mainLayout.addWidget(toolBar)
mainLayout.addWidget(container) # Add the container instead of splitter directly
# Set the main layout
centralWidget = QWidget()
centralWidget.setObjectName("centralWidget")
centralWidget.setLayout(mainLayout)
self.setCentralWidget(centralWidget)
def toggleMaximized(self):
if self.isMaximized():
# Remove shadow when maximized
self.shadow.setEnabled(False)
self.showNormal()
self.maximizeButton.setText("□")
else:
# Disable shadow when maximized to prevent visual artifacts
self.shadow.setEnabled(True)
self.showMaximized()
self.maximizeButton.setText("❐")
def update_preview(self):
# Convert markdown to HTML
markdown_text = self.editor.toPlainText()
html_content = markdown.markdown(markdown_text, extensions=['fenced_code', 'codehilite'])
# Insert both the style and HTML content into the base template
full_html = self.base_html.format(
style=self.html_style,
content=html_content
)
# Update the preview
self.preview.setHtml(full_html)
def mousePressEvent(self, event):
if event.button() == Qt.LeftButton:
self.dragPos = event.globalPos()
def mouseMoveEvent(self, event):
if event.buttons() == Qt.LeftButton and self.dragPos is not None:
self.move(self.pos() + event.globalPos() - self.dragPos)
self.dragPos = event.globalPos()
def mouseReleaseEvent(self, event):
if event.button() == Qt.LeftButton:
self.dragPos = None
def open_file(self):
file_path, _ = QFileDialog.getOpenFileName(
self,
"Open Markdown File",
"deck", # Default to deck directory
"Markdown Files (*.md);;All Files (*.*)"
)
if file_path:
self.current_file = file_path
with open(file_path, 'r', encoding='utf-8') as file:
self.editor.setText(file.read())
def save_file(self):
if self.current_file:
with open(self.current_file, 'w', encoding='utf-8') as file:
file.write(self.editor.toPlainText())
else:
self.save_file_as()
def save_file_as(self):
file_path, _ = QFileDialog.getSaveFileName(
self,
"Save Markdown File",
"deck", # Default to deck directory
"Markdown Files (*.md);;All Files (*.*)"
)
if file_path:
self.current_file = file_path
with open(file_path, 'w', encoding='utf-8') as file:
file.write(self.editor.toPlainText())
def main():
# Ensure only one QApplication instance is created
app = QApplication.instance()
if app is None:
app = QApplication(sys.argv)
editor = MarkdownEditor()
editor.show()
sys.exit(app.exec_())
if __name__ == '__main__':
main()