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godot/scene/gui/spin_box.cpp

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/**************************************************************************/
/* spin_box.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 "spin_box.h"
#include "core/input/input.h"
#include "core/math/expression.h"
Size2 SpinBox::get_minimum_size() const {
Size2 ms = line_edit->get_combined_minimum_size();
ms.width += last_w;
return ms;
}
void SpinBox::_value_changed(double p_value) {
String value = String::num(get_value(), Math::range_step_decimals(get_step()));
if (is_localizing_numeral_system()) {
value = TS->format_number(value);
}
if (!line_edit->has_focus()) {
if (!prefix.is_empty()) {
value = prefix + " " + value;
}
if (!suffix.is_empty()) {
value += " " + suffix;
}
}
line_edit->set_text(value);
Range::_value_changed(p_value);
}
void SpinBox::_text_submitted(const String &p_string) {
Ref<Expression> expr;
expr.instantiate();
String num = TS->parse_number(p_string);
// Ignore the prefix and suffix in the expression
Error err = expr->parse(num.trim_prefix(prefix + " ").trim_suffix(" " + suffix));
if (err != OK) {
return;
}
Variant value = expr->execute(Array(), nullptr, false, true);
if (value.get_type() != Variant::NIL) {
set_value(value);
}
_value_changed(0);
}
void SpinBox::_text_changed(const String &p_string) {
int cursor_pos = line_edit->get_caret_column();
_text_submitted(p_string);
// Line edit 'set_text' method resets the cursor position so we need to undo that.
line_edit->set_caret_column(cursor_pos);
}
LineEdit *SpinBox::get_line_edit() {
return line_edit;
}
void SpinBox::_line_edit_input(const Ref<InputEvent> &p_event) {
}
void SpinBox::_range_click_timeout() {
if (!drag.enabled && Input::get_singleton()->is_mouse_button_pressed(MouseButton::LEFT)) {
bool up = get_local_mouse_position().y < (get_size().height / 2);
double step = get_custom_arrow_step() != 0.0 ? get_custom_arrow_step() : get_step();
set_value(get_value() + (up ? step : -step));
if (range_click_timer->is_one_shot()) {
range_click_timer->set_wait_time(0.075);
range_click_timer->set_one_shot(false);
range_click_timer->start();
}
} else {
range_click_timer->stop();
}
}
void SpinBox::_release_mouse() {
if (drag.enabled) {
drag.enabled = false;
Input::get_singleton()->set_mouse_mode(Input::MOUSE_MODE_HIDDEN);
warp_mouse(drag.capture_pos);
Input::get_singleton()->set_mouse_mode(Input::MOUSE_MODE_VISIBLE);
}
}
void SpinBox::gui_input(const Ref<InputEvent> &p_event) {
ERR_FAIL_COND(p_event.is_null());
if (!is_editable()) {
return;
}
Ref<InputEventMouseButton> mb = p_event;
double step = get_custom_arrow_step() != 0.0 ? get_custom_arrow_step() : get_step();
if (mb.is_valid() && mb->is_pressed()) {
bool up = mb->get_position().y < (get_size().height / 2);
switch (mb->get_button_index()) {
case MouseButton::LEFT: {
line_edit->grab_focus();
set_value(get_value() + (up ? step : -step));
range_click_timer->set_wait_time(0.6);
range_click_timer->set_one_shot(true);
range_click_timer->start();
drag.allowed = true;
drag.capture_pos = mb->get_position();
} break;
case MouseButton::RIGHT: {
line_edit->grab_focus();
set_value((up ? get_max() : get_min()));
} break;
case MouseButton::WHEEL_UP: {
if (line_edit->has_focus()) {
set_value(get_value() + step * mb->get_factor());
accept_event();
}
} break;
case MouseButton::WHEEL_DOWN: {
if (line_edit->has_focus()) {
set_value(get_value() - step * mb->get_factor());
accept_event();
}
} break;
default:
break;
}
}
if (mb.is_valid() && !mb->is_pressed() && mb->get_button_index() == MouseButton::LEFT) {
//set_default_cursor_shape(CURSOR_ARROW);
range_click_timer->stop();
_release_mouse();
drag.allowed = false;
line_edit->clear_pending_select_all_on_focus();
}
Ref<InputEventMouseMotion> mm = p_event;
if (mm.is_valid() && (mm->get_button_mask().has_flag(MouseButtonMask::LEFT))) {
if (drag.enabled) {
drag.diff_y += mm->get_relative().y;
double diff_y = -0.01 * Math::pow(ABS(drag.diff_y), 1.8) * SIGN(drag.diff_y);
set_value(CLAMP(drag.base_val + step * diff_y, get_min(), get_max()));
} else if (drag.allowed && drag.capture_pos.distance_to(mm->get_position()) > 2) {
Input::get_singleton()->set_mouse_mode(Input::MOUSE_MODE_CAPTURED);
drag.enabled = true;
drag.base_val = get_value();
drag.diff_y = 0;
}
}
}
void SpinBox::_line_edit_focus_enter() {
int col = line_edit->get_caret_column();
_value_changed(0); // Update the LineEdit's text.
line_edit->set_caret_column(col);
// LineEdit text might change and it clears any selection. Have to re-select here.
if (line_edit->is_select_all_on_focus() && !Input::get_singleton()->is_mouse_button_pressed(MouseButton::LEFT)) {
line_edit->select_all();
}
}
void SpinBox::_line_edit_focus_exit() {
// Discontinue because the focus_exit was caused by right-click context menu.
if (line_edit->is_menu_visible()) {
return;
}
_text_submitted(line_edit->get_text());
}
inline void SpinBox::_adjust_width_for_icon(const Ref<Texture2D> &icon) {
int w = icon->get_width();
if ((w != last_w)) {
line_edit->set_offset(SIDE_LEFT, 0);
line_edit->set_offset(SIDE_RIGHT, -w);
last_w = w;
}
}
void SpinBox::_update_theme_item_cache() {
Range::_update_theme_item_cache();
theme_cache.updown_icon = get_theme_icon(SNAME("updown"));
}
void SpinBox::_notification(int p_what) {
switch (p_what) {
case NOTIFICATION_DRAW: {
_adjust_width_for_icon(theme_cache.updown_icon);
RID ci = get_canvas_item();
Size2i size = get_size();
if (is_layout_rtl()) {
theme_cache.updown_icon->draw(ci, Point2i(0, (size.height - theme_cache.updown_icon->get_height()) / 2));
} else {
theme_cache.updown_icon->draw(ci, Point2i(size.width - theme_cache.updown_icon->get_width(), (size.height - theme_cache.updown_icon->get_height()) / 2));
}
} break;
case NOTIFICATION_ENTER_TREE: {
_adjust_width_for_icon(theme_cache.updown_icon);
_value_changed(0);
} break;
case NOTIFICATION_EXIT_TREE: {
_release_mouse();
} break;
case NOTIFICATION_TRANSLATION_CHANGED: {
_value_changed(0);
queue_redraw();
} break;
case NOTIFICATION_THEME_CHANGED: {
call_deferred(SNAME("update_minimum_size"));
get_line_edit()->call_deferred(SNAME("update_minimum_size"));
} break;
case NOTIFICATION_LAYOUT_DIRECTION_CHANGED: {
queue_redraw();
} break;
}
}
void SpinBox::set_horizontal_alignment(HorizontalAlignment p_alignment) {
line_edit->set_horizontal_alignment(p_alignment);
}
HorizontalAlignment SpinBox::get_horizontal_alignment() const {
return line_edit->get_horizontal_alignment();
}
void SpinBox::set_suffix(const String &p_suffix) {
if (suffix == p_suffix) {
return;
}
suffix = p_suffix;
_value_changed(0);
}
String SpinBox::get_suffix() const {
return suffix;
}
void SpinBox::set_prefix(const String &p_prefix) {
if (prefix == p_prefix) {
return;
}
prefix = p_prefix;
_value_changed(0);
}
String SpinBox::get_prefix() const {
return prefix;
}
void SpinBox::set_update_on_text_changed(bool p_enabled) {
if (update_on_text_changed == p_enabled) {
return;
}
update_on_text_changed = p_enabled;
if (p_enabled) {
line_edit->connect("text_changed", callable_mp(this, &SpinBox::_text_changed), CONNECT_DEFERRED);
} else {
line_edit->disconnect("text_changed", callable_mp(this, &SpinBox::_text_changed));
}
}
bool SpinBox::get_update_on_text_changed() const {
return update_on_text_changed;
}
void SpinBox::set_select_all_on_focus(bool p_enabled) {
line_edit->set_select_all_on_focus(p_enabled);
}
bool SpinBox::is_select_all_on_focus() const {
return line_edit->is_select_all_on_focus();
}
void SpinBox::set_editable(bool p_enabled) {
line_edit->set_editable(p_enabled);
}
bool SpinBox::is_editable() const {
return line_edit->is_editable();
}
void SpinBox::apply() {
_text_submitted(line_edit->get_text());
}
void SpinBox::set_custom_arrow_step(double p_custom_arrow_step) {
custom_arrow_step = p_custom_arrow_step;
}
double SpinBox::get_custom_arrow_step() const {
return custom_arrow_step;
}
void SpinBox::_bind_methods() {
ClassDB::bind_method(D_METHOD("set_horizontal_alignment", "alignment"), &SpinBox::set_horizontal_alignment);
ClassDB::bind_method(D_METHOD("get_horizontal_alignment"), &SpinBox::get_horizontal_alignment);
ClassDB::bind_method(D_METHOD("set_suffix", "suffix"), &SpinBox::set_suffix);
ClassDB::bind_method(D_METHOD("get_suffix"), &SpinBox::get_suffix);
ClassDB::bind_method(D_METHOD("set_prefix", "prefix"), &SpinBox::set_prefix);
ClassDB::bind_method(D_METHOD("get_prefix"), &SpinBox::get_prefix);
ClassDB::bind_method(D_METHOD("set_editable", "enabled"), &SpinBox::set_editable);
ClassDB::bind_method(D_METHOD("set_custom_arrow_step", "arrow_step"), &SpinBox::set_custom_arrow_step);
ClassDB::bind_method(D_METHOD("get_custom_arrow_step"), &SpinBox::get_custom_arrow_step);
ClassDB::bind_method(D_METHOD("is_editable"), &SpinBox::is_editable);
ClassDB::bind_method(D_METHOD("set_update_on_text_changed", "enabled"), &SpinBox::set_update_on_text_changed);
ClassDB::bind_method(D_METHOD("get_update_on_text_changed"), &SpinBox::get_update_on_text_changed);
ClassDB::bind_method(D_METHOD("set_select_all_on_focus", "enabled"), &SpinBox::set_select_all_on_focus);
ClassDB::bind_method(D_METHOD("is_select_all_on_focus"), &SpinBox::is_select_all_on_focus);
ClassDB::bind_method(D_METHOD("apply"), &SpinBox::apply);
ClassDB::bind_method(D_METHOD("get_line_edit"), &SpinBox::get_line_edit);
ADD_PROPERTY(PropertyInfo(Variant::INT, "alignment", PROPERTY_HINT_ENUM, "Left,Center,Right,Fill"), "set_horizontal_alignment", "get_horizontal_alignment");
ADD_PROPERTY(PropertyInfo(Variant::BOOL, "editable"), "set_editable", "is_editable");
ADD_PROPERTY(PropertyInfo(Variant::BOOL, "update_on_text_changed"), "set_update_on_text_changed", "get_update_on_text_changed");
ADD_PROPERTY(PropertyInfo(Variant::STRING, "prefix"), "set_prefix", "get_prefix");
ADD_PROPERTY(PropertyInfo(Variant::STRING, "suffix"), "set_suffix", "get_suffix");
ADD_PROPERTY(PropertyInfo(Variant::FLOAT, "custom_arrow_step"), "set_custom_arrow_step", "get_custom_arrow_step");
ADD_PROPERTY(PropertyInfo(Variant::BOOL, "select_all_on_focus"), "set_select_all_on_focus", "is_select_all_on_focus");
}
SpinBox::SpinBox() {
line_edit = memnew(LineEdit);
add_child(line_edit, false, INTERNAL_MODE_FRONT);
line_edit->set_anchors_and_offsets_preset(Control::PRESET_FULL_RECT);
line_edit->set_mouse_filter(MOUSE_FILTER_PASS);
line_edit->set_horizontal_alignment(HORIZONTAL_ALIGNMENT_LEFT);
line_edit->connect("text_submitted", callable_mp(this, &SpinBox::_text_submitted), CONNECT_DEFERRED);
line_edit->connect("focus_entered", callable_mp(this, &SpinBox::_line_edit_focus_enter), CONNECT_DEFERRED);
line_edit->connect("focus_exited", callable_mp(this, &SpinBox::_line_edit_focus_exit), CONNECT_DEFERRED);
line_edit->connect("gui_input", callable_mp(this, &SpinBox::_line_edit_input));
range_click_timer = memnew(Timer);
range_click_timer->connect("timeout", callable_mp(this, &SpinBox::_range_click_timeout));
add_child(range_click_timer, false, INTERNAL_MODE_FRONT);
}
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