fix: set desktop file name before QApplication init to resolve QDBusError

src/main.py

@@ -23,10 +23,10 @@ def main():
         myappid = 'ddybing.teletexteditor.1.0' # arbitrary string
         ctypes.windll.shell32.SetCurrentProcessExplicitAppUserModelID(myappid)
 
+    QApplication.setDesktopFileName("no.ddybing.TeletextEditor") # Helps Linux DEs group windows
     app = QApplication(sys.argv)
     app.setApplicationName("TeletextEditor")
     app.setOrganizationName("DanielDybing")
-    app.setDesktopFileName("no.ddybing.TeletextEditor") # Helps Linux DEs group windows
     
     # Debug Image Formats
     supported_formats = [str(fmt, 'utf-8') for fmt in QImageReader.supportedImageFormats()]

src/teletext/ui.py

@@ -6,7 +6,7 @@ from PyQt6.QtWidgets import (
     QCheckBox, QDialog, QGridLayout
 )
 from PyQt6.QtGui import QAction, QKeyEvent, QPainter, QBrush, QColor
-from PyQt6.QtCore import Qt, QRect
+from PyQt6.QtCore import Qt, QRect, QTimer
 
 from .io import load_t42, save_t42
 from .renderer import TeletextCanvas, create_blank_packet
@@ -183,14 +183,31 @@ class MainWindow(QMainWindow):
         
         center_layout.addLayout(top_bar)
         
-        # Color Shortcuts
+        # Middle Layout (Canvas + Right Sidebar)
-        color_layout = QHBoxLayout()
+        middle_layout = QHBoxLayout()
+        center_layout.addLayout(middle_layout, 1)
         
+        # Canvas
+        self.canvas = TeletextCanvas()
+        self.canvas.cursorChanged.connect(self.on_cursor_changed)
+        middle_layout.addWidget(self.canvas, 1) # Expand
+        
+        # Right Sidebar
+        right_sidebar = QWidget()
+        right_sidebar.setFixedWidth(160)
+        right_layout = QVBoxLayout(right_sidebar)
+        right_layout.setContentsMargins(5, 0, 0, 0)
+        middle_layout.addWidget(right_sidebar)
+
+        # Color Shortcuts
         # Graphics Mode Toggle
         self.chk_graphics = QCheckBox("Graphics")
         self.chk_graphics.setToolTip("If checked, inserts Graphics Color codes (e.g. Red Graphics 0x11) instead of Alpha (0x01)")
-        color_layout.addWidget(self.chk_graphics)
+        right_layout.addWidget(self.chk_graphics)
 
+        colors_grid = QGridLayout()
+        colors_grid.setSpacing(5)
+        
         colors = [
             ("Black", 0x00, "#000000"),
             ("Red", 0x01, "#FF0000"),
@@ -202,9 +219,10 @@ class MainWindow(QMainWindow):
             ("White", 0x07, "#FFFFFF"),
         ]
         
+        row, col = 0, 0
         for name, code, hex_color in colors:
             btn = QPushButton(name)
-            btn.setFixedSize(60, 30) # Fixed size for uniformity
+            btn.setFixedSize(60, 30) 
             
             # Common style
             style = f"background-color: {hex_color}; font-weight: bold; border: 1px solid #555; border-radius: 3px;"
@@ -220,20 +238,25 @@ class MainWindow(QMainWindow):
             
             # Use separate method to handle graphics check
             btn.clicked.connect(lambda checked, c=code: self.insert_color(c))
-            color_layout.addWidget(btn)
+            colors_grid.addWidget(btn, row, col)
+            
+            col += 1
+            if col > 1:
+                col = 0
+                row += 1
+        
+        right_layout.addLayout(colors_grid)
             
         # Mosaics Button
         btn_mosaic = QPushButton("Mosaics...")
         btn_mosaic.clicked.connect(self.open_mosaic_dialog)
-        color_layout.addWidget(btn_mosaic)
+        right_layout.addWidget(btn_mosaic)
-            
+
-        color_layout.addStretch()
+        right_layout.addSpacing(10)
-        center_layout.addLayout(color_layout)
 
         # Background Controls
-        bg_layout = QHBoxLayout()
         bg_label = QLabel("Background:")
-        bg_layout.addWidget(bg_label)
+        right_layout.addWidget(bg_label)
 
         # New Background (0x1D)
         btn_new_bg = QPushButton("New BG")
@@ -241,7 +264,7 @@ class MainWindow(QMainWindow):
         btn_new_bg.setStyleSheet("background-color: #CCCCCC; color: black; font-weight: bold; border: 1px solid #555; border-radius: 3px;")
         btn_new_bg.setToolTip("Sets the current foreground color as the new background color (0x1D)")
         btn_new_bg.clicked.connect(lambda: self.insert_char(0x1D))
-        bg_layout.addWidget(btn_new_bg)
+        right_layout.addWidget(btn_new_bg)
 
         # Black Background (0x1C)
         btn_black_bg = QPushButton("Black BG")
@@ -249,15 +272,13 @@ class MainWindow(QMainWindow):
         btn_black_bg.setStyleSheet("background-color: black; color: white; font-weight: bold; border: 1px solid #555; border-radius: 3px;")
         btn_black_bg.setToolTip("Resets the background color to Black (0x1C)")
         btn_black_bg.clicked.connect(lambda: self.insert_char(0x1C))
-        bg_layout.addWidget(btn_black_bg)
+        right_layout.addWidget(btn_black_bg)
         
-        bg_layout.addStretch()
+        right_layout.addSpacing(10)
-        center_layout.addLayout(bg_layout)
 
         # Graphics Control
-        gfx_ctrl_layout = QHBoxLayout()
         gfx_ctrl_label = QLabel("Graphics Control:")
-        gfx_ctrl_layout.addWidget(gfx_ctrl_label)
+        right_layout.addWidget(gfx_ctrl_label)
 
         # Hold Graphics (0x1E)
         btn_hold = QPushButton("Hold Gfx")
@@ -265,7 +286,7 @@ class MainWindow(QMainWindow):
         btn_hold.setStyleSheet("background-color: #CCCCCC; color: black; font-weight: bold; border: 1px solid #555; border-radius: 3px;")
         btn_hold.setToolTip("Hold Graphics (0x1E): Displays the last graphic char in place of subsequent control codes.")
         btn_hold.clicked.connect(lambda: self.insert_char(0x1E))
-        gfx_ctrl_layout.addWidget(btn_hold)
+        right_layout.addWidget(btn_hold)
 
         # Release Graphics (0x1F)
         btn_release = QPushButton("Release Gfx")
@@ -273,15 +294,9 @@ class MainWindow(QMainWindow):
         btn_release.setStyleSheet("background-color: #CCCCCC; color: black; font-weight: bold; border: 1px solid #555; border-radius: 3px;")
         btn_release.setToolTip("Release Graphics (0x1F): Ends the 'Hold Graphics' effect.")
         btn_release.clicked.connect(lambda: self.insert_char(0x1F))
-        gfx_ctrl_layout.addWidget(btn_release)
+        right_layout.addWidget(btn_release)
         
-        gfx_ctrl_layout.addStretch()
+        right_layout.addStretch()
-        center_layout.addLayout(gfx_ctrl_layout)
-
-        # Canvas
-        self.canvas = TeletextCanvas()
-        self.canvas.cursorChanged.connect(self.on_cursor_changed)
-        center_layout.addWidget(self.canvas, 1) # Expand
         
         self.layout.addLayout(center_layout, 1)
         
@@ -461,8 +476,8 @@ class MainWindow(QMainWindow):
         self.undo_stack.clear()
         self.redo_stack.clear()
         
-        QMessageBox.information(self, "Closed", "File closed.")
+        self.status_label.setText("File closed.")
-        self.status_label.setText("Ready")
+        QTimer.singleShot(3000, lambda: self.status_label.setText("Ready"))
         self.set_modified(False)