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GTextEditor: Add a readonly mode.

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This commit is contained in:
Andreas Kling 2019-05-08 05:00:28 +02:00
parent 5d707745b6
commit 6b40b081b2
2 changed files with 30 additions and 4 deletions
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30
LibGUI/GTextEditor.cpp
View file

@ -112,7 +112,6 @@ GTextPosition GTextEditor::text_position_at(const Point& a_position) const
int line_index = position.y() / line_height();
line_index = max(0, min(line_index, line_count() - 1));
auto& line = *m_lines[line_index];
int column_index;
switch (m_text_alignment) {
@ -249,7 +248,6 @@ void GTextEditor::paint_event(GPaintEvent& event)
painter.translate(-horizontal_scrollbar().value(), -vertical_scrollbar().value());
if (m_ruler_visible)
painter.translate(ruler_width(), 0);
int exposed_width = max(content_width(), frame_inner_rect().width());
int first_visible_line = text_position_at(event.rect().top_left()).line();
int last_visible_line = text_position_at(event.rect().bottom_right()).line();
@ -463,6 +461,8 @@ void GTextEditor::keydown_event(GKeyEvent& event)
}
if (event.key() == KeyCode::Key_Backspace) {
if (is_readonly())
return;
if (has_selection()) {
delete_selection();
did_update_selection();
@ -490,16 +490,20 @@ void GTextEditor::keydown_event(GKeyEvent& event)
}
if (event.modifiers() == Mod_Shift && event.key() == KeyCode::Key_Delete) {
if (is_readonly())
return;
delete_current_line();
return;
}
if (event.key() == KeyCode::Key_Delete) {
if (is_readonly())
return;
do_delete();
return;
}
if (!event.ctrl() && !event.alt() && !event.text().is_empty())
if (!is_readonly() && !event.ctrl() && !event.alt() && !event.text().is_empty())
insert_at_cursor_or_replace_selection(event.text());
return GWidget::keydown_event(event);
@ -520,6 +524,9 @@ void GTextEditor::delete_current_line()
void GTextEditor::do_delete()
{
if (is_readonly())
return;
if (has_selection())
return delete_selection();
@ -923,6 +930,7 @@ void GTextEditor::delete_selection()
void GTextEditor::insert_at_cursor_or_replace_selection(const String& text)
{
ASSERT(!is_readonly());
if (has_selection())
delete_selection();
insert_at_cursor(text);
@ -930,6 +938,8 @@ void GTextEditor::insert_at_cursor_or_replace_selection(const String& text)
void GTextEditor::cut()
{
if (is_readonly())
return;
auto selected_text = this->selected_text();
printf("Cut: \"%s\"\n", selected_text.characters());
GClipboard::the().set_data(selected_text);
@ -945,6 +955,8 @@ void GTextEditor::copy()
void GTextEditor::paste()
{
if (is_readonly())
return;
auto paste_text = GClipboard::the().data();
printf("Paste: \"%s\"\n", paste_text.characters());
insert_at_cursor_or_replace_selection(paste_text);
@ -975,9 +987,19 @@ void GTextEditor::did_change()
}
}
void GTextEditor::set_readonly(bool readonly)
{
if (m_readonly == readonly)
return;
m_readonly = readonly;
m_cut_action->set_enabled(!is_readonly() && has_selection());
m_delete_action->set_enabled(!is_readonly());
m_paste_action->set_enabled(!is_readonly());
}
void GTextEditor::did_update_selection()
{
m_cut_action->set_enabled(has_selection());
m_cut_action->set_enabled(!is_readonly() && has_selection());
m_copy_action->set_enabled(has_selection());
if (on_selection_change)
on_selection_change();

4
LibGUI/GTextEditor.h
View file

@ -70,6 +70,9 @@ public:
GTextEditor(Type, GWidget* parent);
virtual ~GTextEditor() override;
bool is_readonly() const { return m_readonly; }
void set_readonly(bool);
bool is_automatic_indentation() const { return m_automatic_indentation_enabled; }
void set_automatic_indentation_enabled(bool enabled) { m_automatic_indentation_enabled = enabled; }
@ -196,6 +199,7 @@ private:
bool m_ruler_visible { false };
bool m_have_pending_change_notification { false };
bool m_automatic_indentation_enabled { false };
bool m_readonly { false };
int m_line_spacing { 4 };
int m_soft_tab_width { 4 };
int m_horizontal_content_padding { 2 };