7198f5da9b
Improve dragging behavior of editor_spin_slider
466 lines
15 KiB
C++
466 lines
15 KiB
C++
/*************************************************************************/
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/* editor_spin_slider.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) 2007-2018 Juan Linietsky, Ariel Manzur. */
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/* Copyright (c) 2014-2018 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 "editor_spin_slider.h"
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#include "core/math/expression.h"
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#include "core/os/input.h"
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#include "editor_scale.h"
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String EditorSpinSlider::get_tooltip(const Point2 &p_pos) const {
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return rtos(get_value());
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}
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String EditorSpinSlider::get_text_value() const {
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int zeros = Math::step_decimals(get_step());
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return String::num(get_value(), zeros);
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}
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void EditorSpinSlider::_gui_input(const Ref<InputEvent> &p_event) {
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if (read_only)
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return;
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Ref<InputEventMouseButton> mb = p_event;
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if (mb.is_valid() && mb->get_button_index() == BUTTON_LEFT) {
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if (mb->is_pressed()) {
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if (updown_offset != -1 && mb->get_position().x > updown_offset) {
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//there is an updown, so use it.
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if (mb->get_position().y < get_size().height / 2) {
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set_value(get_value() + get_step());
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} else {
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set_value(get_value() - get_step());
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}
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return;
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} else {
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grabbing_spinner_attempt = true;
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grabbing_spinner_dist_cache = 0;
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pre_grab_value = get_value();
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grabbing_spinner = false;
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grabbing_spinner_mouse_pos = Input::get_singleton()->get_mouse_position();
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}
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} else {
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if (grabbing_spinner_attempt) {
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if (grabbing_spinner) {
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Input::get_singleton()->set_mouse_mode(Input::MOUSE_MODE_VISIBLE);
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Input::get_singleton()->warp_mouse_position(grabbing_spinner_mouse_pos);
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update();
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} else {
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_focus_entered();
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}
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grabbing_spinner = false;
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grabbing_spinner_attempt = false;
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}
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}
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}
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Ref<InputEventMouseMotion> mm = p_event;
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if (mm.is_valid()) {
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if (grabbing_spinner_attempt) {
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double diff_x = mm->get_relative().x;
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if (mm->get_shift() && grabbing_spinner) {
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diff_x *= 0.1;
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}
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grabbing_spinner_dist_cache += diff_x;
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if (!grabbing_spinner && ABS(grabbing_spinner_dist_cache) > 4 * EDSCALE) {
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Input::get_singleton()->set_mouse_mode(Input::MOUSE_MODE_CAPTURED);
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grabbing_spinner = true;
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}
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if (grabbing_spinner) {
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if (mm->get_control() || updown_offset != -1) {
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set_value(Math::round(get_value()));
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if (ABS(grabbing_spinner_dist_cache) > 6) {
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set_value(get_value() + SGN(grabbing_spinner_dist_cache));
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grabbing_spinner_dist_cache = 0;
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pre_grab_value = get_value();
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}
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} else {
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set_value(pre_grab_value + get_step() * grabbing_spinner_dist_cache * 10);
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}
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}
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} else if (updown_offset != -1) {
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bool new_hover = (mm->get_position().x > updown_offset);
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if (new_hover != hover_updown) {
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hover_updown = new_hover;
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update();
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}
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}
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}
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Ref<InputEventKey> k = p_event;
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if (k.is_valid() && k->is_pressed() && k->is_action("ui_accept")) {
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_focus_entered();
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}
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}
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void EditorSpinSlider::_grabber_gui_input(const Ref<InputEvent> &p_event) {
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Ref<InputEventMouseButton> mb = p_event;
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if (mb.is_valid() && mb->get_button_index() == BUTTON_LEFT) {
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if (mb->is_pressed()) {
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grabbing_grabber = true;
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grabbing_ratio = get_as_ratio();
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grabbing_from = grabber->get_transform().xform(mb->get_position()).x;
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} else {
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grabbing_grabber = false;
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}
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}
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Ref<InputEventMouseMotion> mm = p_event;
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if (mm.is_valid() && grabbing_grabber) {
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float grabbing_ofs = (grabber->get_transform().xform(mm->get_position()).x - grabbing_from) / float(grabber_range);
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set_as_ratio(grabbing_ratio + grabbing_ofs);
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update();
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}
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}
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void EditorSpinSlider::_notification(int p_what) {
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if (p_what == MainLoop::NOTIFICATION_WM_FOCUS_OUT || p_what == MainLoop::NOTIFICATION_WM_FOCUS_IN) {
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if (grabbing_spinner) {
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Input::get_singleton()->set_mouse_mode(Input::MOUSE_MODE_VISIBLE);
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grabbing_spinner = false;
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grabbing_spinner_attempt = false;
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}
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}
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if (p_what == NOTIFICATION_DRAW) {
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updown_offset = -1;
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Ref<StyleBox> sb = get_stylebox("normal", "LineEdit");
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if (!flat) {
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draw_style_box(sb, Rect2(Vector2(), get_size()));
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}
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Ref<Font> font = get_font("font", "LineEdit");
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int sep_base = 4 * EDSCALE;
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int sep = sep_base + sb->get_offset().x; //make it have the same margin on both sides, looks better
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int string_width = font->get_string_size(label).width;
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int number_width = get_size().width - sb->get_minimum_size().width - string_width - sep;
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Ref<Texture> updown = get_icon("updown", "SpinBox");
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if (get_step() == 1) {
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number_width -= updown->get_width();
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}
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String numstr = get_text_value();
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int vofs = (get_size().height - font->get_height()) / 2 + font->get_ascent();
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Color fc = get_color("font_color", "LineEdit");
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Color lc;
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if (use_custom_label_color) {
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lc = custom_label_color;
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} else {
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lc = fc;
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}
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if (flat && label != String()) {
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Color label_bg_color = get_color("dark_color_3", "Editor");
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draw_rect(Rect2(Vector2(), Vector2(sb->get_offset().x * 2 + string_width, get_size().height)), label_bg_color);
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}
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if (has_focus()) {
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Ref<StyleBox> focus = get_stylebox("focus", "LineEdit");
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draw_style_box(focus, Rect2(Vector2(), get_size()));
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}
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draw_string(font, Vector2(sb->get_offset().x, vofs), label, lc * Color(1, 1, 1, 0.5));
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draw_string(font, Vector2(sb->get_offset().x + string_width + sep, vofs), numstr, fc, number_width);
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if (get_step() == 1) {
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Ref<Texture> updown = get_icon("updown", "SpinBox");
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int updown_vofs = (get_size().height - updown->get_height()) / 2;
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updown_offset = get_size().width - sb->get_margin(MARGIN_RIGHT) - updown->get_width();
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Color c(1, 1, 1);
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if (hover_updown) {
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c *= Color(1.2, 1.2, 1.2);
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}
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draw_texture(updown, Vector2(updown_offset, updown_vofs), c);
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if (grabber->is_visible()) {
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grabber->hide();
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}
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} else if (!hide_slider) {
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int grabber_w = 4 * EDSCALE;
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int width = get_size().width - sb->get_minimum_size().width - grabber_w;
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int ofs = sb->get_offset().x;
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int svofs = (get_size().height + vofs) / 2 - 1;
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Color c = fc;
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c.a = 0.2;
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draw_rect(Rect2(ofs, svofs + 1, width, 2 * EDSCALE), c);
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int gofs = get_as_ratio() * width;
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c.a = 0.9;
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Rect2 grabber_rect = Rect2(ofs + gofs, svofs + 1, grabber_w, 2 * EDSCALE);
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draw_rect(grabber_rect, c);
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bool display_grabber = (mouse_over_spin || mouse_over_grabber) && !grabbing_spinner && !value_input->is_visible();
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if (grabber->is_visible() != display_grabber) {
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if (display_grabber) {
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grabber->show();
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} else {
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grabber->hide();
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}
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}
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if (display_grabber) {
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Ref<Texture> grabber_tex;
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if (mouse_over_grabber) {
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grabber_tex = get_icon("grabber_highlight", "HSlider");
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} else {
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grabber_tex = get_icon("grabber", "HSlider");
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}
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if (grabber->get_texture() != grabber_tex) {
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grabber->set_texture(grabber_tex);
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}
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grabber->set_size(Size2(0, 0));
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grabber->set_position(get_global_position() + grabber_rect.position + grabber_rect.size * 0.5 - grabber->get_size() * 0.5);
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grabber_range = width;
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}
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}
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}
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if (p_what == NOTIFICATION_MOUSE_ENTER) {
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mouse_over_spin = true;
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update();
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}
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if (p_what == NOTIFICATION_MOUSE_EXIT) {
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mouse_over_spin = false;
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update();
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}
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if (p_what == NOTIFICATION_FOCUS_ENTER) {
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/* Sorry, I don't like this, it makes navigating the different fields with arrows more difficult.
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* Just press enter to edit.
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* if (Input::get_singleton()->is_mouse_button_pressed(BUTTON_LEFT) && !value_input_just_closed) {
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_focus_entered();
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}*/
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if ((Input::get_singleton()->is_action_pressed("ui_focus_next") || Input::get_singleton()->is_action_pressed("ui_focus_prev")) && !value_input_just_closed) {
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_focus_entered();
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}
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value_input_just_closed = false;
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}
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}
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Size2 EditorSpinSlider::get_minimum_size() const {
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Ref<StyleBox> sb = get_stylebox("normal", "LineEdit");
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Ref<Font> font = get_font("font", "LineEdit");
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Size2 ms = sb->get_minimum_size();
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ms.height += font->get_height();
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return ms;
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}
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void EditorSpinSlider::set_hide_slider(bool p_hide) {
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hide_slider = p_hide;
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update();
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}
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bool EditorSpinSlider::is_hiding_slider() const {
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return hide_slider;
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}
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void EditorSpinSlider::set_label(const String &p_label) {
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label = p_label;
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update();
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}
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String EditorSpinSlider::get_label() const {
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return label;
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}
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void EditorSpinSlider::_evaluate_input_text() {
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String text = value_input->get_text();
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Ref<Expression> expr;
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expr.instance();
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Error err = expr->parse(text);
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if (err != OK) {
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return;
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}
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Variant v = expr->execute(Array(), NULL, false);
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if (v.get_type() == Variant::NIL)
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return;
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set_value(v);
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}
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//text_entered signal
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void EditorSpinSlider::_value_input_entered(const String &p_text) {
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value_input_just_closed = true;
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value_input->hide();
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}
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//modal_closed signal
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void EditorSpinSlider::_value_input_closed() {
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_evaluate_input_text();
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value_input_just_closed = true;
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}
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//focus_exited signal
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void EditorSpinSlider::_value_focus_exited() {
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_evaluate_input_text();
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// focus is not on the same element after the vlalue_input was exited
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// -> focus is on next element
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// -> TAB was pressed
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// -> modal_close was not called
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// -> need to close/hide manually
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if (!value_input_just_closed) { //value_input_just_closed should do the same
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value_input->hide();
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//tab was pressed
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} else {
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//enter, click, esc
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}
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}
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void EditorSpinSlider::_grabber_mouse_entered() {
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mouse_over_grabber = true;
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update();
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}
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void EditorSpinSlider::_grabber_mouse_exited() {
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mouse_over_grabber = false;
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update();
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}
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void EditorSpinSlider::set_read_only(bool p_enable) {
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read_only = p_enable;
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update();
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}
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bool EditorSpinSlider::is_read_only() const {
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return read_only;
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}
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void EditorSpinSlider::set_flat(bool p_enable) {
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flat = p_enable;
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update();
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}
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bool EditorSpinSlider::is_flat() const {
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return flat;
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}
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void EditorSpinSlider::set_custom_label_color(bool p_use_custom_label_color, Color p_custom_label_color) {
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use_custom_label_color = p_use_custom_label_color;
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custom_label_color = p_custom_label_color;
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}
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void EditorSpinSlider::_focus_entered() {
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Rect2 gr = get_global_rect();
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value_input->set_text(get_text_value());
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value_input->set_position(gr.position);
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value_input->set_size(gr.size);
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value_input->call_deferred("show_modal");
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value_input->call_deferred("grab_focus");
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value_input->call_deferred("select_all");
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value_input->set_focus_next(find_next_valid_focus()->get_path());
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value_input->set_focus_previous(find_prev_valid_focus()->get_path());
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}
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void EditorSpinSlider::_bind_methods() {
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ClassDB::bind_method(D_METHOD("set_label", "label"), &EditorSpinSlider::set_label);
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ClassDB::bind_method(D_METHOD("get_label"), &EditorSpinSlider::get_label);
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ClassDB::bind_method(D_METHOD("set_read_only", "read_only"), &EditorSpinSlider::set_read_only);
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ClassDB::bind_method(D_METHOD("is_read_only"), &EditorSpinSlider::is_read_only);
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ClassDB::bind_method(D_METHOD("set_flat", "flat"), &EditorSpinSlider::set_flat);
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ClassDB::bind_method(D_METHOD("is_flat"), &EditorSpinSlider::is_flat);
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ClassDB::bind_method(D_METHOD("_gui_input"), &EditorSpinSlider::_gui_input);
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ClassDB::bind_method(D_METHOD("_grabber_mouse_entered"), &EditorSpinSlider::_grabber_mouse_entered);
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ClassDB::bind_method(D_METHOD("_grabber_mouse_exited"), &EditorSpinSlider::_grabber_mouse_exited);
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ClassDB::bind_method(D_METHOD("_grabber_gui_input"), &EditorSpinSlider::_grabber_gui_input);
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ClassDB::bind_method(D_METHOD("_value_input_closed"), &EditorSpinSlider::_value_input_closed);
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ClassDB::bind_method(D_METHOD("_value_input_entered"), &EditorSpinSlider::_value_input_entered);
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ClassDB::bind_method(D_METHOD("_value_focus_exited"), &EditorSpinSlider::_value_focus_exited);
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ADD_PROPERTY(PropertyInfo(Variant::STRING, "label"), "set_label", "get_label");
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ADD_PROPERTY(PropertyInfo(Variant::BOOL, "read_only"), "set_read_only", "is_read_only");
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ADD_PROPERTY(PropertyInfo(Variant::BOOL, "flat"), "set_flat", "is_flat");
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}
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EditorSpinSlider::EditorSpinSlider() {
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flat = false;
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grabbing_spinner_attempt = false;
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grabbing_spinner = false;
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grabbing_spinner_dist_cache = 0;
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pre_grab_value = 0;
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set_focus_mode(FOCUS_ALL);
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updown_offset = -1;
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hover_updown = false;
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grabber = memnew(TextureRect);
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add_child(grabber);
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grabber->hide();
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grabber->set_as_toplevel(true);
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grabber->set_mouse_filter(MOUSE_FILTER_STOP);
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grabber->connect("mouse_entered", this, "_grabber_mouse_entered");
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grabber->connect("mouse_exited", this, "_grabber_mouse_exited");
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grabber->connect("gui_input", this, "_grabber_gui_input");
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mouse_over_spin = false;
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mouse_over_grabber = false;
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grabbing_grabber = false;
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grabber_range = 1;
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value_input = memnew(LineEdit);
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add_child(value_input);
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value_input->set_as_toplevel(true);
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value_input->hide();
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value_input->connect("modal_closed", this, "_value_input_closed");
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value_input->connect("text_entered", this, "_value_input_entered");
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value_input->connect("focus_exited", this, "_value_focus_exited");
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value_input_just_closed = false;
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hide_slider = false;
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read_only = false;
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use_custom_label_color = false;
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}
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