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Make TextEdit cut, copy and paste overridable

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This commit is contained in:
Paulb23 2021-07-08 16:48:58 +01:00
parent abbf14e7f5
commit e60900a353
5 changed files with 314 additions and 224 deletions
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32
doc/classes/TextEdit.xml
View file

@ -13,13 +13,35 @@
<method name="_backspace" qualifiers="virtual">
<return type="void" />
<description>
A virtual method that is called whenever backspace is triggered.
Overide this method to define what happens when the user presses the backspace key.
</description>
</method>
<method name="_copy" qualifiers="virtual">
<return type="void">
</return>
<description>
Overide this method to define what happens when the user performs a copy.
</description>
</method>
<method name="_cut" qualifiers="virtual">
<return type="void">
</return>
<description>
Overide this method to define what happens when the user perfroms a cut.
</description>
</method>
<method name="_handle_unicode_input" qualifiers="virtual">
<return type="void" />
<argument index="0" name="unicode" type="int" />
<description>
Overide this method to define what happens when the types in the provided key [code]unicode[/code].
</description>
</method>
<method name="_paste" qualifiers="virtual">
<return type="void">
</return>
<description>
Overide this method to define what happens when the user perfroms a paste.
</description>
</method>
<method name="add_gutter">
@ -31,7 +53,7 @@
<method name="backspace">
<return type="void" />
<description>
Causes the [TextEdit] to perform a backspace.
Called when the user presses the backspace key. Can be overriden with [method _backspace].
</description>
</method>
<method name="center_viewport_to_cursor">
@ -55,7 +77,7 @@
<method name="copy">
<return type="void" />
<description>
Copy's the current text selection.
Copy's the current text selection. Can be overriden with [method _copy].
</description>
</method>
<method name="cursor_get_column" qualifiers="const">
@ -94,7 +116,7 @@
<method name="cut">
<return type="void" />
<description>
Cut's the current selection.
Cut's the current selection. Can be overriden with [method _cut].
</description>
</method>
<method name="delete_selection">
@ -351,7 +373,7 @@
<method name="paste">
<return type="void" />
<description>
Paste the current selection.
Paste the current selection. Can be overriden with [method _paste].
</description>
</method>
<method name="redo">

123
scene/gui/code_edit.cpp
View file

@ -544,18 +544,21 @@ Control::CursorShape CodeEdit::get_cursor_shape(const Point2 &p_pos) const {
return TextEdit::get_cursor_shape(p_pos);
}
void CodeEdit::handle_unicode_input(uint32_t p_unicode) {
/* Text manipulation */
// Overridable actions
void CodeEdit::_handle_unicode_input(const uint32_t p_unicode) {
bool had_selection = is_selection_active();
if (had_selection) {
begin_complex_operation();
delete_selection();
}
// Remove the old character if in insert mode and no selection.
/* Remove the old character if in insert mode and no selection. */
if (is_insert_mode() && !had_selection) {
begin_complex_operation();
// Make sure we don't try and remove empty space.
/* Make sure we don't try and remove empty space. */
if (cursor_get_column() < get_line(cursor_get_line()).length()) {
_remove_text(cursor_get_line(), cursor_get_column(), cursor_get_line(), cursor_get_column() + 1);
}
@ -596,6 +599,63 @@ void CodeEdit::handle_unicode_input(uint32_t p_unicode) {
}
}
void CodeEdit::_backspace() {
if (is_readonly()) {
return;
}
int cc = cursor_get_column();
int cl = cursor_get_line();
if (cc == 0 && cl == 0) {
return;
}
if (is_selection_active()) {
delete_selection();
return;
}
if (cl > 0 && is_line_hidden(cl - 1)) {
unfold_line(cursor_get_line() - 1);
}
int prev_line = cc ? cl : cl - 1;
int prev_column = cc ? (cc - 1) : (get_line(cl - 1).length());
merge_gutters(cl, prev_line);
if (auto_brace_completion_enabled && cc > 0) {
int idx = _get_auto_brace_pair_open_at_pos(cl, cc);
if (idx != -1) {
prev_column = cc - auto_brace_completion_pairs[idx].open_key.length();
if (_get_auto_brace_pair_close_at_pos(cl, cc) == idx) {
_remove_text(prev_line, prev_column, cl, cc + auto_brace_completion_pairs[idx].close_key.length());
} else {
_remove_text(prev_line, prev_column, cl, cc);
}
cursor_set_line(prev_line, false, true);
cursor_set_column(prev_column);
return;
}
}
/* For space indentation we need to do a simple unindent if there are no chars to the left, acting in the */
/* same way as tabs. */
if (indent_using_spaces && cc != 0) {
if (get_first_non_whitespace_column(cl) > cc) {
prev_column = cc - _calculate_spaces_till_next_left_indent(cc);
prev_line = cl;
}
}
_remove_text(prev_line, prev_column, cl, cc);
cursor_set_line(prev_line, false, true);
cursor_set_column(prev_column);
}
/* Indent management */
void CodeEdit::set_indent_size(const int p_size) {
ERR_FAIL_COND_MSG(p_size <= 0, "Indend size must be greater than 0.");
@ -955,63 +1015,6 @@ void CodeEdit::_new_line(bool p_split_current_line, bool p_above) {
end_complex_operation();
}
void CodeEdit::backspace() {
if (is_readonly()) {
return;
}
int cc = cursor_get_column();
int cl = cursor_get_line();
if (cc == 0 && cl == 0) {
return;
}
if (is_selection_active()) {
delete_selection();
return;
}
if (cl > 0 && is_line_hidden(cl - 1)) {
unfold_line(cursor_get_line() - 1);
}
int prev_line = cc ? cl : cl - 1;
int prev_column = cc ? (cc - 1) : (get_line(cl - 1).length());
merge_gutters(cl, prev_line);
if (auto_brace_completion_enabled && cc > 0) {
int idx = _get_auto_brace_pair_open_at_pos(cl, cc);
if (idx != -1) {
prev_column = cc - auto_brace_completion_pairs[idx].open_key.length();
if (_get_auto_brace_pair_close_at_pos(cl, cc) == idx) {
_remove_text(prev_line, prev_column, cl, cc + auto_brace_completion_pairs[idx].close_key.length());
} else {
_remove_text(prev_line, prev_column, cl, cc);
}
cursor_set_line(prev_line, false, true);
cursor_set_column(prev_column);
return;
}
}
/* For space indentation we need to do a simple unindent if there are no chars to the left, acting in the */
/* same way as tabs. */
if (indent_using_spaces && cc != 0) {
if (get_first_non_whitespace_column(cl) > cc) {
prev_column = cc - _calculate_spaces_till_next_left_indent(cc);
prev_line = cl;
}
}
_remove_text(prev_line, prev_column, cl, cc);
cursor_set_line(prev_line, false, true);
cursor_set_column(prev_column);
}
/* Auto brace completion */
void CodeEdit::set_auto_brace_completion_enabled(bool p_enabled) {
auto_brace_completion_enabled = p_enabled;

9
scene/gui/code_edit.h
View file

@ -239,10 +239,15 @@ protected:
static void _bind_methods();
/* Text manipulation */
// Overridable actions
virtual void _handle_unicode_input(const uint32_t p_unicode) override;
virtual void _backspace() override;
public:
/* General overrides */
virtual CursorShape get_cursor_shape(const Point2 &p_pos = Point2i()) const override;
virtual void handle_unicode_input(uint32_t p_unicode) override;
/* Indent management */
void set_indent_size(const int p_size);
@ -263,8 +268,6 @@ public:
void indent_lines();
void unindent_lines();
virtual void backspace() override;
/* Auto brace completion */
void set_auto_brace_completion_enabled(bool p_enabled);
bool is_auto_brace_completion_enabled() const;

345
scene/gui/text_edit.cpp
View file

@ -1503,40 +1503,6 @@ void TextEdit::_notification(int p_what) {
}
}
void TextEdit::backspace() {
ScriptInstance *si = get_script_instance();
if (si && si->has_method("_backspace")) {
si->call("_backspace");
return;
}
if (readonly) {
return;
}
if (cursor.column == 0 && cursor.line == 0) {
return;
}
if (is_selection_active()) {
delete_selection();
return;
}
int prev_line = cursor.column ? cursor.line : cursor.line - 1;
int prev_column = cursor.column ? (cursor.column - 1) : (text[cursor.line - 1].length());
merge_gutters(cursor.line, prev_line);
if (is_line_hidden(cursor.line)) {
set_line_as_hidden(prev_line, true);
}
_remove_text(prev_line, prev_column, cursor.line, cursor.column);
cursor_set_line(prev_line, false, true);
cursor_set_column(prev_column);
}
void TextEdit::_swap_current_input_direction() {
if (input_direction == TEXT_DIRECTION_LTR) {
input_direction = TEXT_DIRECTION_RTL;
@ -1955,37 +1921,6 @@ void TextEdit::_move_cursor_document_end(bool p_select) {
}
}
void TextEdit::handle_unicode_input(uint32_t p_unicode) {
ScriptInstance *si = get_script_instance();
if (si && si->has_method("_handle_unicode_input")) {
si->call("_handle_unicode_input", p_unicode);
return;
}
bool had_selection = selection.active;
if (had_selection) {
begin_complex_operation();
delete_selection();
}
// Remove the old character if in insert mode and no selection.
if (insert_mode && !had_selection) {
begin_complex_operation();
// Make sure we don't try and remove empty space.
if (cursor.column < get_line(cursor.line).length()) {
_remove_text(cursor.line, cursor.column, cursor.line, cursor.column + 1);
}
}
const char32_t chr[2] = { (char32_t)p_unicode, 0 };
insert_text_at_cursor(chr);
if ((insert_mode && !had_selection) || (had_selection)) {
end_complex_operation();
}
}
void TextEdit::_get_mouse_pos(const Point2i &p_mouse, int &r_row, int &r_col) const {
float rows = p_mouse.y;
rows -= cache.style_normal->get_margin(SIDE_TOP);
@ -3785,6 +3720,54 @@ void TextEdit::_update_caches() {
}
}
/* Text manipulation */
// Overridable actions
void TextEdit::handle_unicode_input(const uint32_t p_unicode) {
ScriptInstance *si = get_script_instance();
if (si && si->has_method("_handle_unicode_input")) {
si->call("_handle_unicode_input", p_unicode);
return;
}
_handle_unicode_input(p_unicode);
}
void TextEdit::backspace() {
ScriptInstance *si = get_script_instance();
if (si && si->has_method("_backspace")) {
si->call("_backspace");
return;
}
_backspace();
}
void TextEdit::cut() {
ScriptInstance *si = get_script_instance();
if (si && si->has_method("_cut")) {
si->call("_cut");
return;
}
_cut();
}
void TextEdit::copy() {
ScriptInstance *si = get_script_instance();
if (si && si->has_method("_copy")) {
si->call("_copy");
return;
}
_copy();
}
void TextEdit::paste() {
ScriptInstance *si = get_script_instance();
if (si && si->has_method("_paste")) {
si->call("_paste");
return;
}
_paste();
}
/* Syntax Highlighting. */
Ref<SyntaxHighlighter> TextEdit::get_syntax_highlighter() {
return syntax_highlighter;
@ -4028,84 +4011,6 @@ Color TextEdit::get_line_background_color(int p_line) {
return text.get_line_background_color(p_line);
}
void TextEdit::cut() {
if (readonly) {
return;
}
if (!selection.active) {
String clipboard = text[cursor.line];
DisplayServer::get_singleton()->clipboard_set(clipboard);
cursor_set_line(cursor.line);
cursor_set_column(0);
if (cursor.line == 0 && get_line_count() > 1) {
_remove_text(cursor.line, 0, cursor.line + 1, 0);
} else {
_remove_text(cursor.line, 0, cursor.line, text[cursor.line].length());
backspace();
cursor_set_line(cursor.line + 1);
}
update();
cut_copy_line = clipboard;
} else {
String clipboard = _base_get_text(selection.from_line, selection.from_column, selection.to_line, selection.to_column);
DisplayServer::get_singleton()->clipboard_set(clipboard);
_remove_text(selection.from_line, selection.from_column, selection.to_line, selection.to_column);
cursor_set_line(selection.from_line, false); // Set afterwards else it causes the view to be offset.
cursor_set_column(selection.from_column);
selection.active = false;
selection.selecting_mode = SelectionMode::SELECTION_MODE_NONE;
update();
cut_copy_line = "";
}
}
void TextEdit::copy() {
if (!selection.active) {
if (text[cursor.line].length() != 0) {
String clipboard = _base_get_text(cursor.line, 0, cursor.line, text[cursor.line].length());
DisplayServer::get_singleton()->clipboard_set(clipboard);
cut_copy_line = clipboard;
}
} else {
String clipboard = _base_get_text(selection.from_line, selection.from_column, selection.to_line, selection.to_column);
DisplayServer::get_singleton()->clipboard_set(clipboard);
cut_copy_line = "";
}
}
void TextEdit::paste() {
if (readonly) {
return;
}
String clipboard = DisplayServer::get_singleton()->clipboard_get();
begin_complex_operation();
if (selection.active) {
selection.active = false;
selection.selecting_mode = SelectionMode::SELECTION_MODE_NONE;
_remove_text(selection.from_line, selection.from_column, selection.to_line, selection.to_column);
cursor_set_line(selection.from_line, false);
cursor_set_column(selection.from_column);
} else if (!cut_copy_line.is_empty() && cut_copy_line == clipboard) {
cursor_set_column(0);
String ins = "\n";
clipboard += ins;
}
insert_text_at_cursor(clipboard);
end_complex_operation();
update();
}
void TextEdit::select_all() {
if (!selecting_enabled) {
return;
@ -5425,13 +5330,6 @@ void TextEdit::_bind_methods() {
ClassDB::bind_method(D_METHOD("is_selecting_enabled"), &TextEdit::is_selecting_enabled);
ClassDB::bind_method(D_METHOD("delete_selection"), &TextEdit::delete_selection);
ClassDB::bind_method(D_METHOD("backspace"), &TextEdit::backspace);
BIND_VMETHOD(MethodInfo("_backspace"));
BIND_VMETHOD(MethodInfo("_handle_unicode_input", PropertyInfo(Variant::INT, "unicode")))
ClassDB::bind_method(D_METHOD("cut"), &TextEdit::cut);
ClassDB::bind_method(D_METHOD("copy"), &TextEdit::copy);
ClassDB::bind_method(D_METHOD("paste"), &TextEdit::paste);
ClassDB::bind_method(D_METHOD("select", "from_line", "from_column", "to_line", "to_column"), &TextEdit::select);
ClassDB::bind_method(D_METHOD("select_all"), &TextEdit::select_all);
@ -5462,6 +5360,23 @@ void TextEdit::_bind_methods() {
ClassDB::bind_method(D_METHOD("set_override_selected_font_color", "override"), &TextEdit::set_override_selected_font_color);
ClassDB::bind_method(D_METHOD("is_overriding_selected_font_color"), &TextEdit::is_overriding_selected_font_color);
/* Text manipulation */
// Overridable actions
ClassDB::bind_method(D_METHOD("backspace"), &TextEdit::backspace);
ClassDB::bind_method(D_METHOD("cut"), &TextEdit::cut);
ClassDB::bind_method(D_METHOD("copy"), &TextEdit::copy);
ClassDB::bind_method(D_METHOD("paste"), &TextEdit::paste);
BIND_VMETHOD(MethodInfo("_handle_unicode_input", PropertyInfo(Variant::INT, "unicode")))
BIND_VMETHOD(MethodInfo("_backspace"));
BIND_VMETHOD(MethodInfo("_cut"));
BIND_VMETHOD(MethodInfo("_copy"));
BIND_VMETHOD(MethodInfo("_paste"));
/* Syntax Highlighting. */
ClassDB::bind_method(D_METHOD("set_syntax_highlighter", "syntax_highlighter"), &TextEdit::set_syntax_highlighter);
ClassDB::bind_method(D_METHOD("get_syntax_highlighter"), &TextEdit::get_syntax_highlighter);
@ -5679,6 +5594,136 @@ void TextEdit::_ensure_menu() {
menu_dir->set_item_checked(menu_dir->get_item_index(MENU_DIR_RTL), text_direction == TEXT_DIRECTION_RTL);
}
/* Text manipulation */
// Overridable actions
void TextEdit::_handle_unicode_input(const uint32_t p_unicode) {
if (readonly) {
return;
}
bool had_selection = is_selection_active();
if (had_selection) {
begin_complex_operation();
delete_selection();
}
/* Remove the old character if in insert mode and no selection. */
if (insert_mode && !had_selection) {
begin_complex_operation();
/* Make sure we don't try and remove empty space. */
int cl = cursor_get_line();
int cc = cursor_get_column();
if (cc < get_line(cl).length()) {
_remove_text(cl, cc, cl, cc + 1);
}
}
const char32_t chr[2] = { (char32_t)p_unicode, 0 };
insert_text_at_cursor(chr);
if ((insert_mode && !had_selection) || (had_selection)) {
end_complex_operation();
}
}
void TextEdit::_backspace() {
if (readonly) {
return;
}
int cc = cursor_get_column();
int cl = cursor_get_line();
if (cc == 0 && cl == 0) {
return;
}
if (is_selection_active()) {
delete_selection();
return;
}
int prev_line = cc ? cl : cl - 1;
int prev_column = cc ? (cc - 1) : (text[cl - 1].length());
merge_gutters(cl, prev_line);
if (is_line_hidden(cl)) {
set_line_as_hidden(prev_line, true);
}
_remove_text(prev_line, prev_column, cl, cc);
cursor_set_line(prev_line, false, true);
cursor_set_column(prev_column);
}
void TextEdit::_cut() {
if (readonly) {
return;
}
if (is_selection_active()) {
DisplayServer::get_singleton()->clipboard_set(get_selection_text());
delete_selection();
cut_copy_line = "";
return;
}
int cl = cursor_get_line();
String clipboard = text[cl];
DisplayServer::get_singleton()->clipboard_set(clipboard);
cursor_set_line(cl);
cursor_set_column(0);
if (cl == 0 && get_line_count() > 1) {
_remove_text(cl, 0, cl + 1, 0);
} else {
_remove_text(cl, 0, cl, text[cl].length());
backspace();
cursor_set_line(cursor_get_line() + 1);
}
cut_copy_line = clipboard;
}
void TextEdit::_copy() {
if (is_selection_active()) {
DisplayServer::get_singleton()->clipboard_set(get_selection_text());
cut_copy_line = "";
return;
}
int cl = cursor_get_line();
if (text[cl].length() != 0) {
String clipboard = _base_get_text(cl, 0, cl, text[cl].length());
DisplayServer::get_singleton()->clipboard_set(clipboard);
cut_copy_line = clipboard;
}
}
void TextEdit::_paste() {
if (readonly) {
return;
}
String clipboard = DisplayServer::get_singleton()->clipboard_get();
begin_complex_operation();
if (is_selection_active()) {
delete_selection();
} else if (!cut_copy_line.is_empty() && cut_copy_line == clipboard) {
cursor_set_column(0);
String ins = "\n";
clipboard += ins;
}
insert_text_at_cursor(clipboard);
end_complex_operation();
}
TextEdit::TextEdit() {
clear();
set_focus_mode(FOCUS_ALL);

29
scene/gui/text_edit.h
View file

@ -173,6 +173,9 @@ private:
const Color get_line_background_color(int p_line) const { return text[p_line].background_color; }
};
/* Text manipulation */
String cut_copy_line = "";
struct Cursor {
Point2 draw_pos;
bool visible = false;
@ -290,7 +293,6 @@ private:
bool scroll_past_end_of_file_enabled = false;
bool highlight_current_line = false;
String cut_copy_line;
bool insert_mode = false;
bool select_identifiers_enabled = false;
@ -473,7 +475,27 @@ protected:
void _set_symbol_lookup_word(const String &p_symbol);
/* Text manipulation */
// Overridable actions
virtual void _handle_unicode_input(const uint32_t p_unicode);
virtual void _backspace();
virtual void _cut();
virtual void _copy();
virtual void _paste();
public:
/* Text manipulation */
// Overridable actions
void handle_unicode_input(const uint32_t p_unicode);
void backspace();
void cut();
void copy();
void paste();
/* Syntax Highlighting. */
Ref<SyntaxHighlighter> get_syntax_highlighter();
void set_syntax_highlighter(Ref<SyntaxHighlighter> p_syntax_highlighter);
@ -667,11 +689,6 @@ public:
void delete_selection();
virtual void handle_unicode_input(uint32_t p_unicode);
virtual void backspace();
void cut();
void copy();
void paste();
void select_all();
void select_word_under_caret();
void select(int p_from_line, int p_from_column, int p_to_line, int p_to_column);