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TextEditor: The delete key should work even when there's no selection.

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This commit is contained in:
Andreas Kling 2019-03-20 23:11:00 +01:00
parent be4533717a
commit ed2303e2d8
Notes: sideshowbarker 2024-07-19 14:59:09 +09:00 
Author: https://github.com/awesomekling
Commit: https://github.com/SerenityOS/serenity/commit/ed2303e2d8f
3 changed files with 30 additions and 24 deletions
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2
Applications/TextEditor/main.cpp
View File

@ -78,7 +78,7 @@ int main(int argc, char** argv)
});
auto delete_action = GAction::create("Delete", { 0, Key_Delete }, GraphicsBitmap::load_from_file(GraphicsBitmap::Format::RGBA32, "/res/icons/16x16/delete.rgb", { 16, 16 }), [&] (const GAction&) {
text_editor->delete_selection();
text_editor->do_delete();
});
auto menubar = make<GMenuBar>();

49
LibGUI/GTextEditor.cpp
View File

@ -382,28 +382,7 @@ void GTextEditor::keydown_event(GKeyEvent& event)
}
if (event.key() == KeyCode::Key_Delete) {
if (has_selection()) {
delete_selection();
return;
}
if (m_cursor.column() < current_line().length()) {
// Delete within line
current_line().remove(m_cursor.column());
update_content_size();
update_cursor();
return;
}
if (m_cursor.column() == current_line().length() && m_cursor.line() != line_count() - 1) {
// Delete at end of line; merge with next line
auto& next_line = *m_lines[m_cursor.line() + 1];
int previous_length = current_line().length();
current_line().append(next_line.characters(), next_line.length());
m_lines.remove(m_cursor.line() + 1);
update_content_size();
update();
set_cursor(m_cursor.line(), previous_length);
return;
}
do_delete();
return;
}
@ -413,6 +392,32 @@ void GTextEditor::keydown_event(GKeyEvent& event)
return GWidget::keydown_event(event);
}
void GTextEditor::do_delete()
{
if (has_selection()) {
delete_selection();
return;
}
if (m_cursor.column() < current_line().length()) {
// Delete within line
current_line().remove(m_cursor.column());
update_content_size();
update_cursor();
return;
}
if (m_cursor.column() == current_line().length() && m_cursor.line() != line_count() - 1) {
// Delete at end of line; merge with next line
auto& next_line = *m_lines[m_cursor.line() + 1];
int previous_length = current_line().length();
current_line().append(next_line.characters(), next_line.length());
m_lines.remove(m_cursor.line() + 1);
update_content_size();
update();
set_cursor(m_cursor.line(), previous_length);
return;
}
}
void GTextEditor::insert_at_cursor(const String& text)
{
// FIXME: This should obviously not be implemented this way.

3
LibGUI/GTextEditor.h
View File

@ -93,7 +93,7 @@ public:
void cut();
void copy();
void paste();
void delete_selection();
void do_delete();
Function<void(GTextEditor&)> on_return_pressed;
Function<void(GTextEditor&)> on_escape_pressed;
@ -150,6 +150,7 @@ private:
Rect ruler_content_rect(int line) const;
void toggle_selection_if_needed_for_event(const GKeyEvent&);
void insert_at_cursor_or_replace_selection(const String&);
void delete_selection();
Type m_type { MultiLine };