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scroll when selection reaches top/bottom

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This commit is contained in:
Andreas Huber
2021-10-25 16:33:04 +02:00
parent 1fce6c02ff
commit 088023e14b
1 changed files with 9 additions and 1 deletions
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10
bigtext.py
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@@ -117,6 +117,11 @@ class InnerBigText(QWidget):
self.selection_highlight.set_end_byte(current_byte)
self.update()
# print("-> %s,%s" %(self._selection_start_byte, self._selection_end_byte))
line_number = self.y_pos_to_line(e.pos().y())
if line_number == 0:
self.scroll_by_lines(-1)
if line_number+1 >= int(self.lines_shown()):
self.scroll_by_lines(1)
def h_scroll_event(self, left_offset: int):
self._left_offset = left_offset
@@ -135,8 +140,11 @@ class InnerBigText(QWidget):
maximum = max(0, length - width_in_chars+1)
self.parent.h_scroll_bar.setMaximum(maximum)
def y_pos_to_line(self, y: int):
return int(y / self.char_height)
def to_byte_offset(self, e: QMouseEvent) -> int:
line_number = int(e.pos().y() / self.char_height)
line_number = self.y_pos_to_line(e.pos().y())
if line_number < len(self.lines):
line = self.lines[line_number]