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godot/scene/gui/spin_box.cpp
Rémi Verschelde a7f49ac9a1 Update copyright statements to 2020 
Happy new year to the wonderful Godot community!

We're starting a new decade with a well-established, non-profit, free
and open source game engine, and tons of further improvements in the
pipeline from hundreds of contributors.

Godot will keep getting better, and we're looking forward to all the
games that the community will keep developing and releasing with it.
2020-01-01 11:16:22 +01:00

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/*************************************************************************/
/* spin_box.cpp */
/*************************************************************************/
/* This file is part of: */
/* GODOT ENGINE */
/* https://godotengine.org */
/*************************************************************************/
/* Copyright (c) 2007-2020 Juan Linietsky, Ariel Manzur. */
/* Copyright (c) 2014-2020 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::_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("_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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