copy to clipboard for ascii text

Non ascii does not work yet. Code does not handle multi-byte characters.

bigtext.py

@@ -81,7 +81,10 @@ class InnerBigText(QWidget):
 
 
     def keyPressEvent(self, e: QKeyEvent) -> None:
-        lines_to_scroll = math.floor(self.lines_shown()) -1
+
+        print("%s + %s" % (e.keyCombination().keyboardModifiers(), e.key()))
+        if e.modifiers() == Qt.KeyboardModifier.NoModifier:
+            lines_to_scroll = math.floor(self.lines_shown()) - 1
             if e.key() == Qt.Key.Key_PageUp:
                 self.scroll_by_lines(-lines_to_scroll)
             if e.key() == Qt.Key.Key_PageDown:
@@ -90,6 +93,8 @@ class InnerBigText(QWidget):
                 self.scroll_by_lines(-3)
             if e.key() == 16777237:
                 self.scroll_by_lines(3)
+        if e.modifiers() == Qt.KeyboardModifier.ControlModifier and e.key() == 67: # 67 == 'c'
+           self.copy_selection()
 
     def wheelEvent(self, event: QWheelEvent):
         direction = 1 if event.angleDelta().y() < 0 else -1
@@ -174,6 +179,13 @@ class InnerBigText(QWidget):
             current_byte = self.model.byte_count()
         return current_byte
 
+    def copy_selection(self):
+        if self.selection_highlight.start_byte != self.selection_highlight.end_byte:
+            start = min(self.selection_highlight.start_byte, self.selection_highlight.end_byte)
+            end = max(self.selection_highlight.start_byte, self.selection_highlight.end_byte)
+            selected_text = self.model.read_range(start, end)
+            cb = QApplication.clipboard()
+            cb.setText(selected_text)
 
     def paintEvent(self, event: QPaintEvent) -> None:
         painter = QPainter(self)

logFileModel.py

@@ -12,6 +12,13 @@ class LogFileModel:
     def __init__(self, file):
         self._file = file
 
+    def read_range(self, start_byte: int, end_byte: int):
+        with self._lock:
+            with open(self._file, 'rb') as f:
+                f.seek(start_byte)
+                bytes = f.read(end_byte - start_byte)
+                return bytes.decode("utf8", errors="ignore")
+
     def data(self, byte_offset, scroll_lines, lines) -> List[Line]:
         #print("data(%s, %s, %s)" % (byte_offset, scroll_lines, lines))
         lines_before_offset: List[Line] = []