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line_edit.cpp
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line_edit.cpp
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/**************************************************************************/
/* line_edit.cpp */
/**************************************************************************/
/* This file is part of: */
/* GODOT ENGINE */
/* https://godotengine.org */
/**************************************************************************/
/* Copyright (c) 2014-present Godot Engine contributors (see AUTHORS.md). */
/* Copyright (c) 2007-2014 Juan Linietsky, Ariel Manzur. */
/* */
/* Permission is hereby granted, free of charge, to any person obtaining */
/* a copy of this software and associated documentation files (the */
/* "Software"), to deal in the Software without restriction, including */
/* without limitation the rights to use, copy, modify, merge, publish, */
/* distribute, sublicense, and/or sell copies of the Software, and to */
/* permit persons to whom the Software is furnished to do so, subject to */
/* the following conditions: */
/* */
/* The above copyright notice and this permission notice shall be */
/* included in all copies or substantial portions of the Software. */
/* */
/* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, */
/* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF */
/* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. */
/* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY */
/* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, */
/* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE */
/* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */
/**************************************************************************/
#include "line_edit.h"
#include "core/input/input_map.h"
#include "core/object/message_queue.h"
#include "core/os/keyboard.h"
#include "core/os/os.h"
#include "core/string/print_string.h"
#include "core/string/translation.h"
#include "label.h"
#include "servers/display_server.h"
#include "servers/text_server.h"
#ifdef TOOLS_ENABLED
#include "editor/editor_settings.h"
#endif
#include "scene/main/window.h"
void LineEdit::_swap_current_input_direction() {
if (input_direction == TEXT_DIRECTION_LTR) {
input_direction = TEXT_DIRECTION_RTL;
} else {
input_direction = TEXT_DIRECTION_LTR;
}
set_caret_column(get_caret_column());
queue_redraw();
}
void LineEdit::_move_caret_left(bool p_select, bool p_move_by_word) {
if (selection.enabled && !p_select) {
set_caret_column(selection.begin);
deselect();
return;
}
shift_selection_check_pre(p_select);
if (p_move_by_word) {
int cc = caret_column;
PackedInt32Array words = TS->shaped_text_get_word_breaks(text_rid);
for (int i = words.size() - 2; i >= 0; i = i - 2) {
if (words[i] < cc) {
cc = words[i];
break;
}
}
set_caret_column(cc);
} else {
if (caret_mid_grapheme_enabled) {
set_caret_column(get_caret_column() - 1);
} else {
set_caret_column(TS->shaped_text_prev_character_pos(text_rid, get_caret_column()));
}
}
shift_selection_check_post(p_select);
_reset_caret_blink_timer();
}
void LineEdit::_move_caret_right(bool p_select, bool p_move_by_word) {
if (selection.enabled && !p_select) {
set_caret_column(selection.end);
deselect();
return;
}
shift_selection_check_pre(p_select);
if (p_move_by_word) {
int cc = caret_column;
PackedInt32Array words = TS->shaped_text_get_word_breaks(text_rid);
for (int i = 1; i < words.size(); i = i + 2) {
if (words[i] > cc) {
cc = words[i];
break;
}
}
set_caret_column(cc);
} else {
if (caret_mid_grapheme_enabled) {
set_caret_column(get_caret_column() + 1);
} else {
set_caret_column(TS->shaped_text_next_character_pos(text_rid, get_caret_column()));
}
}
shift_selection_check_post(p_select);
_reset_caret_blink_timer();
}
void LineEdit::_move_caret_start(bool p_select) {
shift_selection_check_pre(p_select);
set_caret_column(0);
shift_selection_check_post(p_select);
}
void LineEdit::_move_caret_end(bool p_select) {
shift_selection_check_pre(p_select);
set_caret_column(text.length());
shift_selection_check_post(p_select);
}
void LineEdit::_backspace(bool p_word, bool p_all_to_left) {
if (!editable) {
return;
}
if (p_all_to_left) {
deselect();
text = text.substr(0, caret_column);
_text_changed();
return;
}
if (selection.enabled) {
selection_delete();
return;
}
if (p_word) {
int cc = caret_column;
PackedInt32Array words = TS->shaped_text_get_word_breaks(text_rid);
for (int i = words.size() - 2; i >= 0; i = i - 2) {
if (words[i] < cc) {
cc = words[i];
break;
}
}
delete_text(cc, caret_column);
set_caret_column(cc);
} else {
delete_char();
}
}
void LineEdit::_delete(bool p_word, bool p_all_to_right) {
if (!editable) {
return;
}
if (p_all_to_right) {
deselect();
text = text.substr(caret_column, text.length() - caret_column);
_shape();
set_caret_column(0);
_text_changed();
return;
}
if (selection.enabled) {
selection_delete();
return;
}
int text_len = text.length();
if (caret_column == text_len) {
return; // Nothing to do.
}
if (p_word) {
int cc = caret_column;
PackedInt32Array words = TS->shaped_text_get_word_breaks(text_rid);
for (int i = 1; i < words.size(); i = i + 2) {
if (words[i] > cc) {
cc = words[i];
break;
}
}
delete_text(caret_column, cc);
set_caret_column(caret_column);
} else {
if (caret_mid_grapheme_enabled) {
set_caret_column(caret_column + 1);
delete_char();
} else {
int cc = caret_column;
set_caret_column(TS->shaped_text_next_character_pos(text_rid, caret_column));
delete_text(cc, caret_column);
}
}
}
void LineEdit::unhandled_key_input(const Ref<InputEvent> &p_event) {
Ref<InputEventKey> k = p_event;
if (k.is_valid()) {
if (!k->is_pressed()) {
return;
}
// Handle Unicode (with modifiers active, process after shortcuts).
if (has_focus() && editable && (k->get_unicode() >= 32)) {
selection_delete();
char32_t ucodestr[2] = { (char32_t)k->get_unicode(), 0 };
int prev_len = text.length();
insert_text_at_caret(ucodestr);
if (text.length() != prev_len) {
_text_changed();
}
accept_event();
}
}
}
void LineEdit::gui_input(const Ref<InputEvent> &p_event) {
ERR_FAIL_COND(p_event.is_null());
Ref<InputEventMouseButton> b = p_event;
if (b.is_valid()) {
if (ime_text.length() != 0) {
// Ignore mouse clicks in IME input mode.
return;
}
if (b->is_pressed() && b->get_button_index() == MouseButton::RIGHT && context_menu_enabled) {
_update_context_menu();
menu->set_position(get_screen_position() + get_local_mouse_position());
menu->reset_size();
menu->popup();
grab_focus();
accept_event();
return;
}
if (is_middle_mouse_paste_enabled() && b->is_pressed() && b->get_button_index() == MouseButton::MIDDLE && is_editable() && DisplayServer::get_singleton()->has_feature(DisplayServer::FEATURE_CLIPBOARD_PRIMARY)) {
String paste_buffer = DisplayServer::get_singleton()->clipboard_get_primary().strip_escapes();
deselect();
set_caret_at_pixel_pos(b->get_position().x);
if (!paste_buffer.is_empty()) {
insert_text_at_caret(paste_buffer);
if (!text_changed_dirty) {
if (is_inside_tree()) {
MessageQueue::get_singleton()->push_call(this, "_text_changed");
}
text_changed_dirty = true;
}
}
grab_focus();
accept_event();
return;
}
if (b->get_button_index() != MouseButton::LEFT) {
return;
}
_reset_caret_blink_timer();
if (b->is_pressed()) {
accept_event(); // Don't pass event further when clicked on text field.
if (!text.is_empty() && is_editable() && _is_over_clear_button(b->get_position())) {
clear_button_status.press_attempt = true;
clear_button_status.pressing_inside = true;
queue_redraw();
return;
}
if (b->is_shift_pressed()) {
shift_selection_check_pre(true);
}
set_caret_at_pixel_pos(b->get_position().x);
if (b->is_shift_pressed()) {
selection_fill_at_caret();
selection.creating = true;
} else {
if (selecting_enabled) {
const int triple_click_timeout = 600;
const int triple_click_tolerance = 5;
const bool is_triple_click = !b->is_double_click() && (OS::get_singleton()->get_ticks_msec() - last_dblclk) < triple_click_timeout && b->get_position().distance_to(last_dblclk_pos) < triple_click_tolerance;
if (is_triple_click && text.length()) {
// Triple-click select all.
selection.enabled = true;
selection.begin = 0;
selection.end = text.length();
selection.double_click = true;
last_dblclk = 0;
set_caret_column(selection.begin);
if (!pass && DisplayServer::get_singleton()->has_feature(DisplayServer::FEATURE_CLIPBOARD_PRIMARY)) {
DisplayServer::get_singleton()->clipboard_set_primary(text);
}
} else if (b->is_double_click()) {
// Double-click select word.
last_dblclk = OS::get_singleton()->get_ticks_msec();
last_dblclk_pos = b->get_position();
PackedInt32Array words = TS->shaped_text_get_word_breaks(text_rid);
for (int i = 0; i < words.size(); i = i + 2) {
if ((words[i] < caret_column && words[i + 1] > caret_column) || (i == words.size() - 2 && caret_column == words[i + 1])) {
selection.enabled = true;
selection.begin = words[i];
selection.end = words[i + 1];
selection.double_click = true;
set_caret_column(selection.end);
break;
}
}
if (!pass && DisplayServer::get_singleton()->has_feature(DisplayServer::FEATURE_CLIPBOARD_PRIMARY)) {
DisplayServer::get_singleton()->clipboard_set_primary(get_selected_text());
}
}
}
selection.drag_attempt = false;
if (!selection.double_click) {
bool is_inside_sel = selection.enabled && caret_column >= selection.begin && caret_column <= selection.end;
if (drag_and_drop_selection_enabled && is_inside_sel) {
selection.drag_attempt = true;
} else {
deselect();
selection.start_column = caret_column;
selection.creating = true;
}
}
}
queue_redraw();
} else {
if (selection.enabled && !pass && b->get_button_index() == MouseButton::LEFT && DisplayServer::get_singleton()->has_feature(DisplayServer::FEATURE_CLIPBOARD_PRIMARY)) {
DisplayServer::get_singleton()->clipboard_set_primary(get_selected_text());
}
if (!text.is_empty() && is_editable() && clear_button_enabled) {
bool press_attempt = clear_button_status.press_attempt;
clear_button_status.press_attempt = false;
if (press_attempt && clear_button_status.pressing_inside && _is_over_clear_button(b->get_position())) {
clear();
return;
}
}
if ((!selection.creating) && (!selection.double_click)) {
deselect();
}
selection.creating = false;
selection.double_click = false;
if (!drag_action) {
selection.drag_attempt = false;
}
if (pending_select_all_on_focus) {
select_all();
pending_select_all_on_focus = false;
}
show_virtual_keyboard();
}
queue_redraw();
return;
}
Ref<InputEventMouseMotion> m = p_event;
if (m.is_valid()) {
if (!text.is_empty() && is_editable() && clear_button_enabled) {
bool last_press_inside = clear_button_status.pressing_inside;
clear_button_status.pressing_inside = clear_button_status.press_attempt && _is_over_clear_button(m->get_position());
if (last_press_inside != clear_button_status.pressing_inside) {
queue_redraw();
}
}
if (m->get_button_mask().has_flag(MouseButtonMask::LEFT)) {
if (selection.creating) {
set_caret_at_pixel_pos(m->get_position().x);
selection_fill_at_caret();
}
}
if (drag_action && can_drop_data(m->get_position(), get_viewport()->gui_get_drag_data())) {
drag_caret_force_displayed = true;
set_caret_at_pixel_pos(m->get_position().x);
}
return;
}
Ref<InputEventKey> k = p_event;
if (k.is_valid()) {
if (!k->is_pressed()) {
if (alt_start && k->get_keycode() == Key::ALT) {
alt_start = false;
if ((alt_code > 0x31 && alt_code < 0xd800) || (alt_code > 0xdfff && alt_code <= 0x10ffff)) {
char32_t ucodestr[2] = { (char32_t)alt_code, 0 };
insert_text_at_caret(ucodestr);
}
accept_event();
return;
}
return;
}
// Alt + Unicode input:
if (k->is_alt_pressed()) {
if (!alt_start) {
if (k->get_keycode() == Key::KP_ADD) {
alt_start = true;
alt_code = 0;
accept_event();
return;
}
} else {
if (k->get_keycode() >= Key::KEY_0 && k->get_keycode() <= Key::KEY_9) {
alt_code = alt_code << 4;
alt_code += (uint32_t)(k->get_keycode() - Key::KEY_0);
}
if (k->get_keycode() >= Key::KP_0 && k->get_keycode() <= Key::KP_9) {
alt_code = alt_code << 4;
alt_code += (uint32_t)(k->get_keycode() - Key::KP_0);
}
if (k->get_keycode() >= Key::A && k->get_keycode() <= Key::F) {
alt_code = alt_code << 4;
alt_code += (uint32_t)(k->get_keycode() - Key::A) + 10;
}
accept_event();
return;
}
}
if (context_menu_enabled) {
if (k->is_action("ui_menu", true)) {
_update_context_menu();
Point2 pos = Point2(get_caret_pixel_pos().x, (get_size().y + theme_cache.font->get_height(theme_cache.font_size)) / 2);
menu->set_position(get_screen_position() + pos);
menu->reset_size();
menu->popup();
menu->grab_focus();
accept_event();
return;
}
}
// Default is ENTER and KP_ENTER. Cannot use ui_accept as default includes SPACE.
if (k->is_action("ui_text_submit", false)) {
emit_signal(SNAME("text_submitted"), text);
if (DisplayServer::get_singleton()->has_feature(DisplayServer::FEATURE_VIRTUAL_KEYBOARD) && virtual_keyboard_enabled) {
DisplayServer::get_singleton()->virtual_keyboard_hide();
}
accept_event();
return;
}
if (k->is_action("ui_cancel")) {
release_focus();
return;
}
if (is_shortcut_keys_enabled()) {
if (k->is_action("ui_copy", true)) {
copy_text();
accept_event();
return;
}
if (k->is_action("ui_text_select_all", true)) {
select();
accept_event();
return;
}
// Cut / Paste
if (k->is_action("ui_cut", true)) {
cut_text();
accept_event();
return;
}
if (k->is_action("ui_paste", true)) {
paste_text();
accept_event();
return;
}
// Undo / Redo
if (k->is_action("ui_undo", true)) {
undo();
accept_event();
return;
}
if (k->is_action("ui_redo", true)) {
redo();
accept_event();
return;
}
}
// BACKSPACE
if (k->is_action("ui_text_backspace_all_to_left", true)) {
_backspace(false, true);
accept_event();
return;
}
if (k->is_action("ui_text_backspace_word", true)) {
_backspace(true);
accept_event();
return;
}
if (k->is_action("ui_text_backspace", true)) {
_backspace();
accept_event();
return;
}
// DELETE
if (k->is_action("ui_text_delete_all_to_right", true)) {
_delete(false, true);
accept_event();
return;
}
if (k->is_action("ui_text_delete_word", true)) {
_delete(true);
accept_event();
return;
}
if (k->is_action("ui_text_delete", true)) {
_delete();
accept_event();
return;
}
// Cursor Movement
k = k->duplicate();
bool shift_pressed = k->is_shift_pressed();
// Remove shift or else actions will not match. Use above variable for selection.
k->set_shift_pressed(false);
if (k->is_action("ui_text_caret_word_left", true)) {
_move_caret_left(shift_pressed, true);
accept_event();
return;
}
if (k->is_action("ui_text_caret_left", true)) {
_move_caret_left(shift_pressed);
accept_event();
return;
}
if (k->is_action("ui_text_caret_word_right", true)) {
_move_caret_right(shift_pressed, true);
accept_event();
return;
}
if (k->is_action("ui_text_caret_right", true)) {
_move_caret_right(shift_pressed, false);
accept_event();
return;
}
// Up = Home, Down = End
if (k->is_action("ui_text_caret_up", true) || k->is_action("ui_text_caret_line_start", true) || k->is_action("ui_text_caret_page_up", true)) {
_move_caret_start(shift_pressed);
accept_event();
return;
}
if (k->is_action("ui_text_caret_down", true) || k->is_action("ui_text_caret_line_end", true) || k->is_action("ui_text_caret_page_down", true)) {
_move_caret_end(shift_pressed);
accept_event();
return;
}
// Misc
if (k->is_action("ui_swap_input_direction", true)) {
_swap_current_input_direction();
accept_event();
return;
}
_reset_caret_blink_timer();
// Allow unicode handling if:
// * No Modifiers are pressed (except shift)
bool allow_unicode_handling = !(k->is_command_or_control_pressed() || k->is_ctrl_pressed() || k->is_alt_pressed() || k->is_meta_pressed());
if (allow_unicode_handling && editable && k->get_unicode() >= 32) {
// Handle Unicode if no modifiers are active.
selection_delete();
char32_t ucodestr[2] = { (char32_t)k->get_unicode(), 0 };
int prev_len = text.length();
insert_text_at_caret(ucodestr);
if (text.length() != prev_len) {
_text_changed();
}
accept_event();
return;
}
}
}
void LineEdit::set_horizontal_alignment(HorizontalAlignment p_alignment) {
ERR_FAIL_INDEX((int)p_alignment, 4);
if (alignment == p_alignment) {
return;
}
alignment = p_alignment;
_shape();
queue_redraw();
}
HorizontalAlignment LineEdit::get_horizontal_alignment() const {
return alignment;
}
Variant LineEdit::get_drag_data(const Point2 &p_point) {
Variant ret = Control::get_drag_data(p_point);
if (ret != Variant()) {
return ret;
}
if (selection.drag_attempt && selection.enabled) {
String t = get_selected_text();
Label *l = memnew(Label);
l->set_text(t);
set_drag_preview(l);
return t;
}
return Variant();
}
bool LineEdit::can_drop_data(const Point2 &p_point, const Variant &p_data) const {
bool drop_override = Control::can_drop_data(p_point, p_data); // In case user wants to drop custom data.
if (drop_override) {
return drop_override;
}
return is_editable() && p_data.get_type() == Variant::STRING;
}
void LineEdit::drop_data(const Point2 &p_point, const Variant &p_data) {
Control::drop_data(p_point, p_data);
if (p_data.get_type() == Variant::STRING && is_editable()) {
set_caret_at_pixel_pos(p_point.x);
int caret_column_tmp = caret_column;
bool is_inside_sel = selection.enabled && caret_column >= selection.begin && caret_column <= selection.end;
if (Input::get_singleton()->is_key_pressed(Key::CTRL)) {
is_inside_sel = selection.enabled && caret_column > selection.begin && caret_column < selection.end;
}
if (selection.drag_attempt) {
selection.drag_attempt = false;
if (!is_inside_sel) {
if (!Input::get_singleton()->is_key_pressed(Key::CTRL)) {
if (caret_column_tmp > selection.end) {
caret_column_tmp = caret_column_tmp - (selection.end - selection.begin);
}
selection_delete();
}
set_caret_column(caret_column_tmp);
insert_text_at_caret(p_data);
}
} else if (selection.enabled && caret_column >= selection.begin && caret_column <= selection.end) {
caret_column_tmp = selection.begin;
selection_delete();
set_caret_column(caret_column_tmp);
insert_text_at_caret(p_data);
grab_focus();
} else {
insert_text_at_caret(p_data);
grab_focus();
}
select(caret_column_tmp, caret_column);
if (!text_changed_dirty) {
if (is_inside_tree()) {
MessageQueue::get_singleton()->push_call(this, "_text_changed");
}
text_changed_dirty = true;
}
queue_redraw();
}
}
Control::CursorShape LineEdit::get_cursor_shape(const Point2 &p_pos) const {
if ((!text.is_empty() && is_editable() && _is_over_clear_button(p_pos)) || (!is_editable() && (!is_selecting_enabled() || text.is_empty()))) {
return CURSOR_ARROW;
}
return Control::get_cursor_shape(p_pos);
}
bool LineEdit::_is_over_clear_button(const Point2 &p_pos) const {
if (!clear_button_enabled || !has_point(p_pos)) {
return false;
}
Ref<Texture2D> icon = theme_cache.clear_icon;
int x_ofs = theme_cache.normal->get_margin(SIDE_RIGHT);
return p_pos.x > get_size().width - icon->get_width() - x_ofs;
}
void LineEdit::_update_theme_item_cache() {
Control::_update_theme_item_cache();
theme_cache.normal = get_theme_stylebox(SNAME("normal"));
theme_cache.read_only = get_theme_stylebox(SNAME("read_only"));
theme_cache.focus = get_theme_stylebox(SNAME("focus"));
theme_cache.font = get_theme_font(SNAME("font"));
theme_cache.font_size = get_theme_font_size(SNAME("font_size"));
theme_cache.font_color = get_theme_color(SNAME("font_color"));
theme_cache.font_uneditable_color = get_theme_color(SNAME("font_uneditable_color"));
theme_cache.font_selected_color = get_theme_color(SNAME("font_selected_color"));
theme_cache.font_outline_size = get_theme_constant(SNAME("outline_size"));
theme_cache.font_outline_color = get_theme_color(SNAME("font_outline_color"));
theme_cache.font_placeholder_color = get_theme_color(SNAME("font_placeholder_color"));
theme_cache.caret_width = get_theme_constant(SNAME("caret_width"));
theme_cache.caret_color = get_theme_color(SNAME("caret_color"));
theme_cache.minimum_character_width = get_theme_constant(SNAME("minimum_character_width"));
theme_cache.selection_color = get_theme_color(SNAME("selection_color"));
theme_cache.clear_icon = get_theme_icon(SNAME("clear"));
theme_cache.clear_button_color = get_theme_color(SNAME("clear_button_color"));
theme_cache.clear_button_color_pressed = get_theme_color(SNAME("clear_button_color_pressed"));
theme_cache.base_scale = get_theme_default_base_scale();
}
void LineEdit::_notification(int p_what) {
switch (p_what) {
#ifdef TOOLS_ENABLED
case NOTIFICATION_ENTER_TREE: {
if (Engine::get_singleton()->is_editor_hint() && !get_tree()->is_node_being_edited(this)) {
set_caret_blink_enabled(EDITOR_GET("text_editor/appearance/caret/caret_blink"));
set_caret_blink_interval(EDITOR_GET("text_editor/appearance/caret/caret_blink_interval"));
if (!EditorSettings::get_singleton()->is_connected("settings_changed", callable_mp(this, &LineEdit::_editor_settings_changed))) {
EditorSettings::get_singleton()->connect("settings_changed", callable_mp(this, &LineEdit::_editor_settings_changed));
}
}
} break;
#endif
case NOTIFICATION_RESIZED: {
_fit_to_width();
scroll_offset = 0.0;
set_caret_column(get_caret_column());
} break;
case NOTIFICATION_LAYOUT_DIRECTION_CHANGED:
case NOTIFICATION_THEME_CHANGED: {
_shape();
queue_redraw();
} break;
case NOTIFICATION_TRANSLATION_CHANGED: {
placeholder_translated = atr(placeholder);
_shape();
queue_redraw();
} break;
case NOTIFICATION_WM_WINDOW_FOCUS_IN: {
window_has_focus = true;
_validate_caret_can_draw();
queue_redraw();
} break;
case NOTIFICATION_WM_WINDOW_FOCUS_OUT: {
window_has_focus = false;
_validate_caret_can_draw();
queue_redraw();
} break;
case NOTIFICATION_INTERNAL_PROCESS: {
if (caret_blink_enabled && caret_can_draw) {
caret_blink_timer += get_process_delta_time();
if (caret_blink_timer >= caret_blink_interval) {
caret_blink_timer = 0.0;
_toggle_draw_caret();
}
}
} break;
case NOTIFICATION_DRAW: {
int width, height;
bool rtl = is_layout_rtl();
Size2 size = get_size();
width = size.width;
height = size.height;
RID ci = get_canvas_item();
Ref<StyleBox> style = theme_cache.normal;
if (!is_editable()) {
style = theme_cache.read_only;
}
Ref<Font> font = theme_cache.font;
if (!flat) {
style->draw(ci, Rect2(Point2(), size));
}
if (has_focus()) {
theme_cache.focus->draw(ci, Rect2(Point2(), size));
}
int x_ofs = 0;
bool using_placeholder = text.is_empty() && ime_text.is_empty();
float text_width = TS->shaped_text_get_size(text_rid).x;
float text_height = TS->shaped_text_get_size(text_rid).y;
switch (alignment) {
case HORIZONTAL_ALIGNMENT_FILL:
case HORIZONTAL_ALIGNMENT_LEFT: {
if (rtl) {
x_ofs = MAX(style->get_margin(SIDE_LEFT), int(size.width - Math::ceil(style->get_margin(SIDE_RIGHT) + (text_width))));
} else {
x_ofs = style->get_offset().x;
}
} break;
case HORIZONTAL_ALIGNMENT_CENTER: {
if (!Math::is_zero_approx(scroll_offset)) {
x_ofs = style->get_offset().x;
} else {
x_ofs = MAX(style->get_margin(SIDE_LEFT), int(size.width - (text_width)) / 2);
}
} break;
case HORIZONTAL_ALIGNMENT_RIGHT: {
if (rtl) {
x_ofs = style->get_offset().x;
} else {
x_ofs = MAX(style->get_margin(SIDE_LEFT), int(size.width - Math::ceil(style->get_margin(SIDE_RIGHT) + (text_width))));
}
} break;
}
int ofs_max = width - style->get_margin(SIDE_RIGHT);
int y_area = height - style->get_minimum_size().height;
int y_ofs = style->get_offset().y + (y_area - text_height) / 2;
Color selection_color = theme_cache.selection_color;
Color font_color;
if (is_editable()) {
font_color = theme_cache.font_color;
} else {
font_color = theme_cache.font_uneditable_color;
}
Color font_selected_color = theme_cache.font_selected_color;
Color caret_color = theme_cache.caret_color;
// Draw placeholder color.
if (using_placeholder) {
font_color = theme_cache.font_placeholder_color;
}
bool display_clear_icon = !using_placeholder && is_editable() && clear_button_enabled;
if (right_icon.is_valid() || display_clear_icon) {
Ref<Texture2D> r_icon = display_clear_icon ? theme_cache.clear_icon : right_icon;
Color color_icon(1, 1, 1, !is_editable() ? .5 * .9 : .9);
if (display_clear_icon) {
if (clear_button_status.press_attempt && clear_button_status.pressing_inside) {
color_icon = theme_cache.clear_button_color_pressed;
} else {
color_icon = theme_cache.clear_button_color;
}
}
r_icon->draw(ci, Point2(width - r_icon->get_width() - style->get_margin(SIDE_RIGHT), height / 2 - r_icon->get_height() / 2), color_icon);
if (alignment == HORIZONTAL_ALIGNMENT_CENTER) {
if (Math::is_zero_approx(scroll_offset)) {
x_ofs = MAX(style->get_margin(SIDE_LEFT), int(size.width - text_width - r_icon->get_width() - style->get_margin(SIDE_RIGHT) * 2) / 2);
}
} else {
x_ofs = MAX(style->get_margin(SIDE_LEFT), x_ofs - r_icon->get_width() - style->get_margin(SIDE_RIGHT));
}
ofs_max -= r_icon->get_width();
}
// Draw selections rects.
Vector2 ofs = Point2(x_ofs + scroll_offset, y_ofs);
if (selection.enabled) {
Vector<Vector2> sel = TS->shaped_text_get_selection(text_rid, selection.begin, selection.end);
for (int i = 0; i < sel.size(); i++) {
Rect2 rect = Rect2(sel[i].x + ofs.x, ofs.y, sel[i].y - sel[i].x, text_height);
if (rect.position.x + rect.size.x <= x_ofs || rect.position.x > ofs_max) {
continue;
}
if (rect.position.x < x_ofs) {
rect.size.x -= (x_ofs - rect.position.x);
rect.position.x = x_ofs;
} else if (rect.position.x + rect.size.x > ofs_max) {
rect.size.x = ofs_max - rect.position.x;
}
RenderingServer::get_singleton()->canvas_item_add_rect(ci, rect, selection_color);
}
}
const Glyph *glyphs = TS->shaped_text_get_glyphs(text_rid);
int gl_size = TS->shaped_text_get_glyph_count(text_rid);
// Draw text.
ofs.y += TS->shaped_text_get_ascent(text_rid);
Color font_outline_color = theme_cache.font_outline_color;
int outline_size = theme_cache.font_outline_size;
if (outline_size > 0 && font_outline_color.a > 0) {
Vector2 oofs = ofs;
for (int i = 0; i < gl_size; i++) {
for (int j = 0; j < glyphs[i].repeat; j++) {
if (ceil(oofs.x) >= x_ofs && (oofs.x + glyphs[i].advance) <= ofs_max) {
if (glyphs[i].font_rid != RID()) {
TS->font_draw_glyph_outline(glyphs[i].font_rid, ci, glyphs[i].font_size, outline_size, oofs + Vector2(glyphs[i].x_off, glyphs[i].y_off), glyphs[i].index, font_outline_color);
}
}
oofs.x += glyphs[i].advance;
}
if (oofs.x >= ofs_max) {
break;
}
}
}
for (int i = 0; i < gl_size; i++) {
bool selected = selection.enabled && glyphs[i].start >= selection.begin && glyphs[i].end <= selection.end;
for (int j = 0; j < glyphs[i].repeat; j++) {
if (ceil(ofs.x) >= x_ofs && (ofs.x + glyphs[i].advance) <= ofs_max) {
if (glyphs[i].font_rid != RID()) {
TS->font_draw_glyph(glyphs[i].font_rid, ci, glyphs[i].font_size, ofs + Vector2(glyphs[i].x_off, glyphs[i].y_off), glyphs[i].index, selected ? font_selected_color : font_color);
} else if (((glyphs[i].flags & TextServer::GRAPHEME_IS_VIRTUAL) != TextServer::GRAPHEME_IS_VIRTUAL) && ((glyphs[i].flags & TextServer::GRAPHEME_IS_EMBEDDED_OBJECT) != TextServer::GRAPHEME_IS_EMBEDDED_OBJECT)) {
TS->draw_hex_code_box(ci, glyphs[i].font_size, ofs + Vector2(glyphs[i].x_off, glyphs[i].y_off), glyphs[i].index, selected ? font_selected_color : font_color);
}
}
ofs.x += glyphs[i].advance;
}
if (ofs.x >= ofs_max) {
break;
}
}
// Draw carets.
ofs.x = x_ofs + scroll_offset;
if ((caret_can_draw && draw_caret) || drag_caret_force_displayed) {
// Prevent carets from disappearing at theme scales below 1.0 (if the caret width is 1).
const int caret_width = theme_cache.caret_width * MAX(1, theme_cache.base_scale);
if (ime_text.is_empty() || ime_selection.y == 0) {
// Normal caret.
CaretInfo caret = TS->shaped_text_get_carets(text_rid, ime_text.is_empty() ? caret_column : caret_column + ime_selection.x);
if (using_placeholder || (caret.l_caret == Rect2() && caret.t_caret == Rect2())) {
// No carets, add one at the start.
int h = theme_cache.font->get_height(theme_cache.font_size);
int y = style->get_offset().y + (y_area - h) / 2;
caret.l_dir = (rtl) ? TextServer::DIRECTION_RTL : TextServer::DIRECTION_LTR;
switch (alignment) {
case HORIZONTAL_ALIGNMENT_FILL:
case HORIZONTAL_ALIGNMENT_LEFT: {
if (rtl) {
caret.l_caret = Rect2(Vector2(ofs_max, y), Size2(caret_width, h));
} else {
caret.l_caret = Rect2(Vector2(style->get_offset().x, y), Size2(caret_width, h));
}
} break;
case HORIZONTAL_ALIGNMENT_CENTER: {
caret.l_caret = Rect2(Vector2(size.x / 2, y), Size2(caret_width, h));
} break;
case HORIZONTAL_ALIGNMENT_RIGHT: {
if (rtl) {