323 lines
11 KiB
C++
323 lines
11 KiB
C++
/*************************************************************************/
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/* spin_box.cpp */
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/*************************************************************************/
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/* This file is part of: */
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/* GODOT ENGINE */
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/* https://godotengine.org */
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/*************************************************************************/
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/* Copyright (c) 2007-2021 Juan Linietsky, Ariel Manzur. */
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/* Copyright (c) 2014-2021 Godot Engine contributors (cf. AUTHORS.md). */
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/* */
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/* Permission is hereby granted, free of charge, to any person obtaining */
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/* a copy of this software and associated documentation files (the */
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/* "Software"), to deal in the Software without restriction, including */
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/* without limitation the rights to use, copy, modify, merge, publish, */
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/* distribute, sublicense, and/or sell copies of the Software, and to */
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/* permit persons to whom the Software is furnished to do so, subject to */
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/* the following conditions: */
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/* */
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/* The above copyright notice and this permission notice shall be */
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/* included in all copies or substantial portions of the Software. */
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/* */
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/* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, */
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/* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF */
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/* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.*/
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/* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY */
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/* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, */
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/* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE */
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/* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */
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/*************************************************************************/
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#include "spin_box.h"
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#include "core/input/input.h"
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#include "core/math/expression.h"
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Size2 SpinBox::get_minimum_size() const {
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Size2 ms = line_edit->get_combined_minimum_size();
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ms.width += last_w;
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return ms;
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}
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void SpinBox::_value_changed(double) {
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String value = TS->format_number(String::num(get_value(), Math::range_step_decimals(get_step())));
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if (prefix != "") {
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value = prefix + " " + value;
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}
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if (suffix != "") {
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value += " " + suffix;
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}
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line_edit->set_text(value);
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}
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void SpinBox::_text_submitted(const String &p_string) {
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Ref<Expression> expr;
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expr.instantiate();
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String num = TS->parse_number(p_string);
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// Ignore the prefix and suffix in the expression
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Error err = expr->parse(num.trim_prefix(prefix + " ").trim_suffix(" " + suffix));
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if (err != OK) {
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return;
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}
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Variant value = expr->execute(Array(), nullptr, false);
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if (value.get_type() != Variant::NIL) {
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set_value(value);
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}
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_value_changed(0);
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}
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void SpinBox::_text_changed(const String &p_string) {
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int cursor_pos = line_edit->get_caret_column();
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_text_submitted(p_string);
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// Line edit 'set_text' method resets the cursor position so we need to undo that.
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line_edit->set_caret_column(cursor_pos);
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}
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LineEdit *SpinBox::get_line_edit() {
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return line_edit;
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}
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void SpinBox::_line_edit_input(const Ref<InputEvent> &p_event) {
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}
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void SpinBox::_range_click_timeout() {
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if (!drag.enabled && Input::get_singleton()->is_mouse_button_pressed(MouseButton::LEFT)) {
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bool up = get_local_mouse_position().y < (get_size().height / 2);
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set_value(get_value() + (up ? get_step() : -get_step()));
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if (range_click_timer->is_one_shot()) {
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range_click_timer->set_wait_time(0.075);
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range_click_timer->set_one_shot(false);
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range_click_timer->start();
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}
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} else {
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range_click_timer->stop();
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}
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}
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void SpinBox::_release_mouse() {
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if (drag.enabled) {
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drag.enabled = false;
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Input::get_singleton()->set_mouse_mode(Input::MOUSE_MODE_VISIBLE);
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warp_mouse(drag.capture_pos);
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}
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}
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void SpinBox::gui_input(const Ref<InputEvent> &p_event) {
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ERR_FAIL_COND(p_event.is_null());
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if (!is_editable()) {
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return;
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}
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Ref<InputEventMouseButton> mb = p_event;
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if (mb.is_valid() && mb->is_pressed()) {
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bool up = mb->get_position().y < (get_size().height / 2);
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switch (mb->get_button_index()) {
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case MouseButton::LEFT: {
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line_edit->grab_focus();
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set_value(get_value() + (up ? get_step() : -get_step()));
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range_click_timer->set_wait_time(0.6);
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range_click_timer->set_one_shot(true);
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range_click_timer->start();
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drag.allowed = true;
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drag.capture_pos = mb->get_position();
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} break;
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case MouseButton::RIGHT: {
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line_edit->grab_focus();
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set_value((up ? get_max() : get_min()));
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} break;
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case MouseButton::WHEEL_UP: {
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if (line_edit->has_focus()) {
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set_value(get_value() + get_step() * mb->get_factor());
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accept_event();
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}
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} break;
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case MouseButton::WHEEL_DOWN: {
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if (line_edit->has_focus()) {
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set_value(get_value() - get_step() * mb->get_factor());
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accept_event();
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}
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} break;
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default:
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break;
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}
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}
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if (mb.is_valid() && !mb->is_pressed() && mb->get_button_index() == MouseButton::LEFT) {
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//set_default_cursor_shape(CURSOR_ARROW);
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range_click_timer->stop();
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_release_mouse();
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drag.allowed = false;
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}
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Ref<InputEventMouseMotion> mm = p_event;
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if (mm.is_valid() && (mm->get_button_mask() & MouseButton::MASK_LEFT) != MouseButton::NONE) {
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if (drag.enabled) {
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drag.diff_y += mm->get_relative().y;
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float diff_y = -0.01 * Math::pow(ABS(drag.diff_y), 1.8f) * SIGN(drag.diff_y);
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set_value(CLAMP(drag.base_val + get_step() * diff_y, get_min(), get_max()));
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} else if (drag.allowed && drag.capture_pos.distance_to(mm->get_position()) > 2) {
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Input::get_singleton()->set_mouse_mode(Input::MOUSE_MODE_CAPTURED);
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drag.enabled = true;
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drag.base_val = get_value();
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drag.diff_y = 0;
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}
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}
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}
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void SpinBox::_line_edit_focus_exit() {
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// discontinue because the focus_exit was caused by right-click context menu
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if (line_edit->is_menu_visible()) {
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return;
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}
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_text_submitted(line_edit->get_text());
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}
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inline void SpinBox::_adjust_width_for_icon(const Ref<Texture2D> &icon) {
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int w = icon->get_width();
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if ((w != last_w)) {
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line_edit->set_offset(SIDE_LEFT, 0);
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line_edit->set_offset(SIDE_RIGHT, -w);
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last_w = w;
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}
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}
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void SpinBox::_notification(int p_what) {
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if (p_what == NOTIFICATION_DRAW) {
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Ref<Texture2D> updown = get_theme_icon(SNAME("updown"));
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_adjust_width_for_icon(updown);
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RID ci = get_canvas_item();
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Size2i size = get_size();
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if (is_layout_rtl()) {
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updown->draw(ci, Point2i(0, (size.height - updown->get_height()) / 2));
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} else {
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updown->draw(ci, Point2i(size.width - updown->get_width(), (size.height - updown->get_height()) / 2));
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}
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} else if (p_what == NOTIFICATION_FOCUS_EXIT) {
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//_value_changed(0);
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} else if (p_what == NOTIFICATION_ENTER_TREE) {
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_adjust_width_for_icon(get_theme_icon(SNAME("updown")));
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_value_changed(0);
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} else if (p_what == NOTIFICATION_EXIT_TREE) {
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_release_mouse();
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} else if (p_what == NOTIFICATION_TRANSLATION_CHANGED) {
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_value_changed(0);
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} else if (p_what == NOTIFICATION_THEME_CHANGED) {
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call_deferred(SNAME("update_minimum_size"));
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get_line_edit()->call_deferred(SNAME("update_minimum_size"));
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} else if (p_what == NOTIFICATION_LAYOUT_DIRECTION_CHANGED || p_what == NOTIFICATION_TRANSLATION_CHANGED) {
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update();
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}
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}
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void SpinBox::set_align(LineEdit::Align p_align) {
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line_edit->set_align(p_align);
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}
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LineEdit::Align SpinBox::get_align() const {
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return line_edit->get_align();
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}
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void SpinBox::set_suffix(const String &p_suffix) {
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suffix = p_suffix;
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_value_changed(0);
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}
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String SpinBox::get_suffix() const {
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return suffix;
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}
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void SpinBox::set_prefix(const String &p_prefix) {
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prefix = p_prefix;
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_value_changed(0);
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}
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String SpinBox::get_prefix() const {
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return prefix;
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}
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void SpinBox::set_update_on_text_changed(bool p_enabled) {
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if (update_on_text_changed == p_enabled) {
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return;
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}
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update_on_text_changed = p_enabled;
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if (p_enabled) {
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line_edit->connect("text_changed", callable_mp(this, &SpinBox::_text_changed), Vector<Variant>(), CONNECT_DEFERRED);
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} else {
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line_edit->disconnect("text_changed", callable_mp(this, &SpinBox::_text_changed));
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}
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}
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bool SpinBox::get_update_on_text_changed() const {
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return update_on_text_changed;
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}
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void SpinBox::set_editable(bool p_enabled) {
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line_edit->set_editable(p_enabled);
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}
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bool SpinBox::is_editable() const {
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return line_edit->is_editable();
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}
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void SpinBox::apply() {
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_text_submitted(line_edit->get_text());
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}
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void SpinBox::_bind_methods() {
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ClassDB::bind_method(D_METHOD("set_align", "align"), &SpinBox::set_align);
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ClassDB::bind_method(D_METHOD("get_align"), &SpinBox::get_align);
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ClassDB::bind_method(D_METHOD("set_suffix", "suffix"), &SpinBox::set_suffix);
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ClassDB::bind_method(D_METHOD("get_suffix"), &SpinBox::get_suffix);
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ClassDB::bind_method(D_METHOD("set_prefix", "prefix"), &SpinBox::set_prefix);
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ClassDB::bind_method(D_METHOD("get_prefix"), &SpinBox::get_prefix);
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ClassDB::bind_method(D_METHOD("set_editable", "enabled"), &SpinBox::set_editable);
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ClassDB::bind_method(D_METHOD("is_editable"), &SpinBox::is_editable);
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ClassDB::bind_method(D_METHOD("set_update_on_text_changed", "enabled"), &SpinBox::set_update_on_text_changed);
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ClassDB::bind_method(D_METHOD("get_update_on_text_changed"), &SpinBox::get_update_on_text_changed);
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ClassDB::bind_method(D_METHOD("apply"), &SpinBox::apply);
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ClassDB::bind_method(D_METHOD("get_line_edit"), &SpinBox::get_line_edit);
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ADD_PROPERTY(PropertyInfo(Variant::INT, "align", PROPERTY_HINT_ENUM, "Left,Center,Right,Fill"), "set_align", "get_align");
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ADD_PROPERTY(PropertyInfo(Variant::BOOL, "editable"), "set_editable", "is_editable");
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ADD_PROPERTY(PropertyInfo(Variant::BOOL, "update_on_text_changed"), "set_update_on_text_changed", "get_update_on_text_changed");
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ADD_PROPERTY(PropertyInfo(Variant::STRING, "prefix"), "set_prefix", "get_prefix");
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ADD_PROPERTY(PropertyInfo(Variant::STRING, "suffix"), "set_suffix", "get_suffix");
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}
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SpinBox::SpinBox() {
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line_edit = memnew(LineEdit);
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add_child(line_edit, false, INTERNAL_MODE_FRONT);
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line_edit->set_anchors_and_offsets_preset(Control::PRESET_WIDE);
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line_edit->set_mouse_filter(MOUSE_FILTER_PASS);
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line_edit->set_align(LineEdit::ALIGN_LEFT);
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line_edit->connect("text_submitted", callable_mp(this, &SpinBox::_text_submitted), Vector<Variant>(), CONNECT_DEFERRED);
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line_edit->connect("focus_exited", callable_mp(this, &SpinBox::_line_edit_focus_exit), Vector<Variant>(), CONNECT_DEFERRED);
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line_edit->connect("gui_input", callable_mp(this, &SpinBox::_line_edit_input));
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range_click_timer = memnew(Timer);
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range_click_timer->connect("timeout", callable_mp(this, &SpinBox::_range_click_timeout));
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add_child(range_click_timer, false, INTERNAL_MODE_FRONT);
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}
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