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godot/scene/gui/spin_box.cpp
Rémi Verschelde 49646383f1
Update copyright statements to 2021 
Happy new year to the wonderful Godot community!

2020 has been a tough year for most of us personally, but a good year for
Godot development nonetheless with a huge amount of work done towards Godot
4.0 and great improvements backported to the long-lived 3.2 branch.

We've had close to 400 contributors to engine code this year, authoring near
7,000 commit! (And that's only for the `master` branch and for the engine code,
there's a lot more when counting docs, demos and other first-party repos.)

Here's to a great year 2021 for all Godot users 🎆

(cherry picked from commit b5334d14f7)
2021-01-13 16:17:06 +01:00

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/*************************************************************************/
/* spin_box.cpp */
/*************************************************************************/
/* This file is part of: */
/* GODOT ENGINE */
/* https://godotengine.org */
/*************************************************************************/
/* Copyright (c) 2007-2021 Juan Linietsky, Ariel Manzur. */
/* Copyright (c) 2014-2021 Godot Engine contributors (cf. AUTHORS.md). */
/* */
/* 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/math/expression.h"
#include "core/os/input.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) {
String value = String::num(get_value(), Math::range_step_decimals(get_step()));
if (prefix != "")
value = prefix + " " + value;
if (suffix != "")
value += " " + suffix;
line_edit->set_text(value);
}
void SpinBox::_text_entered(const String &p_string) {
Ref<Expression> expr;
expr.instance();
// Ignore the prefix and suffix in the expression
Error err = expr->parse(p_string.trim_prefix(prefix + " ").trim_suffix(" " + suffix));
if (err != OK) {
return;
}
Variant value = expr->execute(Array(), NULL, false);
if (value.get_type() != Variant::NIL) {
set_value(value);
}
_value_changed(0);
}
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(BUTTON_LEFT)) {
bool up = get_local_mouse_position().y < (get_size().height / 2);
set_value(get_value() + (up ? get_step() : -get_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::_gui_input(const Ref<InputEvent> &p_event) {
if (!is_editable()) {
return;
}
Ref<InputEventMouseButton> mb = p_event;
if (mb.is_valid() && mb->is_pressed()) {
bool up = mb->get_position().y < (get_size().height / 2);
switch (mb->get_button_index()) {
case BUTTON_LEFT: {
line_edit->grab_focus();
set_value(get_value() + (up ? get_step() : -get_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 BUTTON_RIGHT: {
line_edit->grab_focus();
set_value((up ? get_max() : get_min()));
} break;
case BUTTON_WHEEL_UP: {
if (line_edit->has_focus()) {
set_value(get_value() + get_step() * mb->get_factor());
accept_event();
}
} break;
case BUTTON_WHEEL_DOWN: {
if (line_edit->has_focus()) {
set_value(get_value() - get_step() * mb->get_factor());
accept_event();
}
} break;
}
}
if (mb.is_valid() && !mb->is_pressed() && mb->get_button_index() == BUTTON_LEFT) {
//set_default_cursor_shape(CURSOR_ARROW);
range_click_timer->stop();
if (drag.enabled) {
drag.enabled = false;
Input::get_singleton()->set_mouse_mode(Input::MOUSE_MODE_VISIBLE);
warp_mouse(drag.capture_pos);
}
drag.allowed = false;
}
Ref<InputEventMouseMotion> mm = p_event;
if (mm.is_valid() && mm->get_button_mask() & BUTTON_MASK_LEFT) {
if (drag.enabled) {
drag.diff_y += mm->get_relative().y;
float diff_y = -0.01 * Math::pow(ABS(drag.diff_y), 1.8f) * SGN(drag.diff_y);
set_value(CLAMP(drag.base_val + get_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_exit() {
// discontinue because the focus_exit was caused by right-click context menu
if (line_edit->get_menu()->is_visible())
return;
_text_entered(line_edit->get_text());
}
inline void SpinBox::_adjust_width_for_icon(const Ref<Texture> &icon) {
int w = icon->get_width();
if (w != last_w) {
line_edit->set_margin(MARGIN_RIGHT, -w);
last_w = w;
}
}
void SpinBox::_notification(int p_what) {
if (p_what == NOTIFICATION_DRAW) {
Ref<Texture> updown = get_icon("updown");
_adjust_width_for_icon(updown);
RID ci = get_canvas_item();
Size2i size = get_size();
updown->draw(ci, Point2i(size.width - updown->get_width(), (size.height - updown->get_height()) / 2));
} else if (p_what == NOTIFICATION_FOCUS_EXIT) {
//_value_changed(0);
} else if (p_what == NOTIFICATION_ENTER_TREE) {
_adjust_width_for_icon(get_icon("updown"));
_value_changed(0);
} else if (p_what == NOTIFICATION_THEME_CHANGED) {
call_deferred("minimum_size_changed");
get_line_edit()->call_deferred("minimum_size_changed");
}
}
void SpinBox::set_align(LineEdit::Align p_align) {
line_edit->set_align(p_align);
}
LineEdit::Align SpinBox::get_align() const {
return line_edit->get_align();
}
void SpinBox::set_suffix(const String &p_suffix) {
suffix = p_suffix;
_value_changed(0);
}
String SpinBox::get_suffix() const {
return suffix;
}
void SpinBox::set_prefix(const String &p_prefix) {
prefix = p_prefix;
_value_changed(0);
}
String SpinBox::get_prefix() const {
return prefix;
}
void SpinBox::set_editable(bool p_editable) {
line_edit->set_editable(p_editable);
}
bool SpinBox::is_editable() const {
return line_edit->is_editable();
}
void SpinBox::apply() {
_text_entered(line_edit->get_text());
}
void SpinBox::_bind_methods() {
//ClassDB::bind_method(D_METHOD("_value_changed"),&SpinBox::_value_changed);
ClassDB::bind_method(D_METHOD("_gui_input"), &SpinBox::_gui_input);
ClassDB::bind_method(D_METHOD("_text_entered"), &SpinBox::_text_entered);
ClassDB::bind_method(D_METHOD("set_align", "align"), &SpinBox::set_align);
ClassDB::bind_method(D_METHOD("get_align"), &SpinBox::get_align);
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", "editable"), &SpinBox::set_editable);
ClassDB::bind_method(D_METHOD("is_editable"), &SpinBox::is_editable);
ClassDB::bind_method(D_METHOD("apply"), &SpinBox::apply);
ClassDB::bind_method(D_METHOD("_line_edit_focus_exit"), &SpinBox::_line_edit_focus_exit);
ClassDB::bind_method(D_METHOD("get_line_edit"), &SpinBox::get_line_edit);
ClassDB::bind_method(D_METHOD("_line_edit_input"), &SpinBox::_line_edit_input);
ClassDB::bind_method(D_METHOD("_range_click_timeout"), &SpinBox::_range_click_timeout);
ADD_PROPERTY(PropertyInfo(Variant::INT, "align", PROPERTY_HINT_ENUM, "Left,Center,Right,Fill"), "set_align", "get_align");
ADD_PROPERTY(PropertyInfo(Variant::BOOL, "editable"), "set_editable", "is_editable");
ADD_PROPERTY(PropertyInfo(Variant::STRING, "prefix"), "set_prefix", "get_prefix");
ADD_PROPERTY(PropertyInfo(Variant::STRING, "suffix"), "set_suffix", "get_suffix");
}
SpinBox::SpinBox() {
last_w = 0;
line_edit = memnew(LineEdit);
add_child(line_edit);
line_edit->set_anchors_and_margins_preset(Control::PRESET_WIDE);
line_edit->set_mouse_filter(MOUSE_FILTER_PASS);
//connect("value_changed",this,"_value_changed");
line_edit->connect("text_entered", this, "_text_entered", Vector<Variant>(), CONNECT_DEFERRED);
line_edit->connect("focus_exited", this, "_line_edit_focus_exit", Vector<Variant>(), CONNECT_DEFERRED);
line_edit->connect("gui_input", this, "_line_edit_input");
drag.enabled = false;
range_click_timer = memnew(Timer);
range_click_timer->connect("timeout", this, "_range_click_timeout");
add_child(range_click_timer);
}
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