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Fix BufferView repeating last line for the remainder of the view

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This commit is contained in:
Josh Holtrop 2017-09-20 19:40:51 -04:00
parent 22171cacf9
commit d2fa28c5e1
2 changed files with 18 additions and 1 deletions
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3
src/core/BufferView.cc
View File

@ -88,7 +88,8 @@ void BufferView::update()
ld.line = std::make_shared<Buffer::Iterator>(*line_iterator);
m_lines.push_back(ld);
row_offset += ld.n_rows;
line_iterator->go_next_line();
if (!line_iterator->go_next_line())
break;
}
/* Reset some fields if buffer becomes empty. */

16
test/src/test_BufferView.cc
View File

@ -682,3 +682,19 @@ TEST(BufferViewTest, scrolls_window_through_a_very_long_single_line_file)
EXPECT_EQ(9, bv.cursor_screen_row());
EXPECT_EQ(1009u, **iterator);
}
TEST(BufferViewTest, shows_only_lines_in_buffer_if_fewer_lines_in_buffer_than_view)
{
auto b = buffer1();
auto iterator = b->add_iterator();
BufferView bv(b, iterator, Cwd);
bv.resize(50, 50);
bv.update();
int count = 0;
for (auto it = bv.vert_iter(); it.is_valid(); it++)
{
EXPECT_EQ(count, it.row_offset());
count++;
}
EXPECT_EQ(13, count);
}