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GTextEditor: Add basic PageUp/PageDown navigation support.

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This commit is contained in:
Andreas Kling
2019-03-07 17:11:17 +01:00
parent 187d7cb400
commit f8b72ab3ab
1 changed files with 16 additions and 0 deletions
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16
LibGUI/GTextEditor.cpp
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@@ -160,6 +160,22 @@ void GTextEditor::keydown_event(GKeyEvent& event)
}
return;
}
if (!event.modifiers() && event.key() == KeyCode::Key_PageUp) {
if (m_cursor.line() > 0) {
int new_line = max(0, m_cursor.line() - visible_content_rect().height() / line_height());
int new_column = min(m_cursor.column(), m_lines[new_line]->length());
set_cursor(new_line, new_column);
}
return;
}
if (!event.modifiers() && event.key() == KeyCode::Key_PageDown) {
if (m_cursor.line() < (m_lines.size() - 1)) {
int new_line = min(line_count() - 1, m_cursor.line() + visible_content_rect().height() / line_height());
int new_column = min(m_cursor.column(), m_lines[new_line]->length());
set_cursor(new_line, new_column);
}
return;
}
if (!event.modifiers() && event.key() == KeyCode::Key_Left) {
if (m_cursor.column() > 0) {
int new_column = m_cursor.column() - 1;