godot/editor/editor_spin_slider.cpp
Hugo Locurcio 3bdb39bec4 Add a margin to EditorSpinSlider to visually line up the edited number
This means clicking on an EditorSpinSlider to edit its value will
no longer cause the number to be visually offset while it's
being edited.

(cherry picked from commit cc615fee5f)
2020-07-24 09:34:58 +02:00

531 lines
17 KiB
C++

/*************************************************************************/
/* editor_spin_slider.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 "editor_spin_slider.h"
#include "core/math/expression.h"
#include "core/os/input.h"
#include "editor_node.h"
#include "editor_scale.h"
String EditorSpinSlider::get_tooltip(const Point2 &p_pos) const {
if (grabber->is_visible()) {
return rtos(get_value()) + "\n\n" + TTR("Hold Ctrl to round to integers. Hold Shift for more precise changes.");
}
return rtos(get_value());
}
String EditorSpinSlider::get_text_value() const {
return String::num(get_value(), Math::range_step_decimals(get_step()));
}
void EditorSpinSlider::_gui_input(const Ref<InputEvent> &p_event) {
if (read_only)
return;
Ref<InputEventMouseButton> mb = p_event;
if (mb.is_valid()) {
if (mb->get_button_index() == BUTTON_LEFT) {
if (mb->is_pressed()) {
if (updown_offset != -1 && mb->get_position().x > updown_offset) {
//there is an updown, so use it.
if (mb->get_position().y < get_size().height / 2) {
set_value(get_value() + get_step());
} else {
set_value(get_value() - get_step());
}
return;
} else {
grabbing_spinner_attempt = true;
grabbing_spinner_dist_cache = 0;
pre_grab_value = get_value();
grabbing_spinner = false;
grabbing_spinner_mouse_pos = Input::get_singleton()->get_mouse_position();
}
} else {
if (grabbing_spinner_attempt) {
if (grabbing_spinner) {
Input::get_singleton()->set_mouse_mode(Input::MOUSE_MODE_VISIBLE);
Input::get_singleton()->warp_mouse_position(grabbing_spinner_mouse_pos);
update();
} else {
_focus_entered();
}
grabbing_spinner = false;
grabbing_spinner_attempt = false;
}
}
} else if (mb->get_button_index() == BUTTON_WHEEL_UP || mb->get_button_index() == BUTTON_WHEEL_DOWN) {
if (grabber->is_visible())
call_deferred("update");
}
}
Ref<InputEventMouseMotion> mm = p_event;
if (mm.is_valid()) {
if (grabbing_spinner_attempt) {
double diff_x = mm->get_relative().x;
if (mm->get_shift() && grabbing_spinner) {
diff_x *= 0.1;
}
grabbing_spinner_dist_cache += diff_x;
if (!grabbing_spinner && ABS(grabbing_spinner_dist_cache) > 4 * EDSCALE) {
Input::get_singleton()->set_mouse_mode(Input::MOUSE_MODE_CAPTURED);
grabbing_spinner = true;
}
if (grabbing_spinner) {
// Don't make the user scroll all the way back to 'in range' if they went off the end.
if (pre_grab_value < get_min() && !is_lesser_allowed()) {
pre_grab_value = get_min();
}
if (pre_grab_value > get_max() && !is_greater_allowed()) {
pre_grab_value = get_max();
}
if (mm->get_control()) {
// If control was just pressed, don't make the value do a huge jump in magnitude.
if (grabbing_spinner_dist_cache != 0) {
pre_grab_value += grabbing_spinner_dist_cache * get_step();
grabbing_spinner_dist_cache = 0;
}
set_value(Math::round(pre_grab_value + get_step() * grabbing_spinner_dist_cache * 10));
} else {
set_value(pre_grab_value + get_step() * grabbing_spinner_dist_cache);
}
}
} else if (updown_offset != -1) {
bool new_hover = (mm->get_position().x > updown_offset);
if (new_hover != hover_updown) {
hover_updown = new_hover;
update();
}
}
}
Ref<InputEventKey> k = p_event;
if (k.is_valid() && k->is_pressed() && k->is_action("ui_accept")) {
_focus_entered();
}
}
void EditorSpinSlider::_grabber_gui_input(const Ref<InputEvent> &p_event) {
Ref<InputEventMouseButton> mb = p_event;
if (grabbing_grabber) {
if (mb.is_valid()) {
if (mb->get_button_index() == BUTTON_WHEEL_UP) {
set_value(get_value() + get_step());
mousewheel_over_grabber = true;
} else if (mb->get_button_index() == BUTTON_WHEEL_DOWN) {
set_value(get_value() - get_step());
mousewheel_over_grabber = true;
}
}
}
if (mb.is_valid() && mb->get_button_index() == BUTTON_LEFT) {
if (mb->is_pressed()) {
grabbing_grabber = true;
if (!mousewheel_over_grabber) {
grabbing_ratio = get_as_ratio();
grabbing_from = grabber->get_transform().xform(mb->get_position()).x;
}
} else {
grabbing_grabber = false;
mousewheel_over_grabber = false;
}
}
Ref<InputEventMouseMotion> mm = p_event;
if (mm.is_valid() && grabbing_grabber) {
if (mousewheel_over_grabber)
return;
float grabbing_ofs = (grabber->get_transform().xform(mm->get_position()).x - grabbing_from) / float(grabber_range);
set_as_ratio(grabbing_ratio + grabbing_ofs);
update();
}
}
void EditorSpinSlider::_notification(int p_what) {
if (p_what == MainLoop::NOTIFICATION_WM_FOCUS_OUT ||
p_what == MainLoop::NOTIFICATION_WM_FOCUS_IN ||
p_what == NOTIFICATION_EXIT_TREE) {
if (grabbing_spinner) {
grabber->hide();
Input::get_singleton()->set_mouse_mode(Input::MOUSE_MODE_VISIBLE);
grabbing_spinner = false;
grabbing_spinner_attempt = false;
}
}
if (p_what == NOTIFICATION_READY) {
// Add a left margin to the stylebox to make the number align with the Label
// when it's edited. The LineEdit "focus" stylebox uses the "normal" stylebox's
// default margins.
Ref<StyleBoxFlat> stylebox =
EditorNode::get_singleton()->get_theme_base()->get_stylebox("normal", "LineEdit")->duplicate();
// EditorSpinSliders with a label have more space on the left, so add an
// higher margin to match the location where the text begins.
// The margin values below were determined by empirical testing.
stylebox->set_default_margin(MARGIN_LEFT, (get_label() != String() ? 23 : 16) * EDSCALE);
value_input->add_style_override("normal", stylebox);
}
if (p_what == NOTIFICATION_DRAW) {
updown_offset = -1;
Ref<StyleBox> sb = get_stylebox("normal", "LineEdit");
if (!flat) {
draw_style_box(sb, Rect2(Vector2(), get_size()));
}
Ref<Font> font = get_font("font", "LineEdit");
int sep_base = 4 * EDSCALE;
int sep = sep_base + sb->get_offset().x; //make it have the same margin on both sides, looks better
int string_width = font->get_string_size(label).width;
int number_width = get_size().width - sb->get_minimum_size().width - string_width - sep;
Ref<Texture> updown = get_icon("updown", "SpinBox");
if (get_step() == 1) {
number_width -= updown->get_width();
}
String numstr = get_text_value();
int vofs = (get_size().height - font->get_height()) / 2 + font->get_ascent();
Color fc = get_color("font_color", "LineEdit");
Color lc;
if (use_custom_label_color) {
lc = custom_label_color;
} else {
lc = fc;
}
if (flat && label != String()) {
Color label_bg_color = get_color("dark_color_3", "Editor");
draw_rect(Rect2(Vector2(), Vector2(sb->get_offset().x * 2 + string_width, get_size().height)), label_bg_color);
}
if (has_focus()) {
Ref<StyleBox> focus = get_stylebox("focus", "LineEdit");
draw_style_box(focus, Rect2(Vector2(), get_size()));
}
draw_string(font, Vector2(Math::round(sb->get_offset().x), vofs), label, lc * Color(1, 1, 1, 0.5));
draw_string(font, Vector2(Math::round(sb->get_offset().x + string_width + sep), vofs), numstr, fc, number_width);
if (get_step() == 1) {
Ref<Texture> updown2 = get_icon("updown", "SpinBox");
int updown_vofs = (get_size().height - updown2->get_height()) / 2;
updown_offset = get_size().width - sb->get_margin(MARGIN_RIGHT) - updown2->get_width();
Color c(1, 1, 1);
if (hover_updown) {
c *= Color(1.2, 1.2, 1.2);
}
draw_texture(updown2, Vector2(updown_offset, updown_vofs), c);
if (grabber->is_visible()) {
grabber->hide();
}
} else if (!hide_slider) {
int grabber_w = 4 * EDSCALE;
int width = get_size().width - sb->get_minimum_size().width - grabber_w;
int ofs = sb->get_offset().x;
int svofs = (get_size().height + vofs) / 2 - 1;
Color c = fc;
c.a = 0.2;
draw_rect(Rect2(ofs, svofs + 1, width, 2 * EDSCALE), c);
int gofs = get_as_ratio() * width;
c.a = 0.9;
Rect2 grabber_rect = Rect2(ofs + gofs, svofs + 1, grabber_w, 2 * EDSCALE);
draw_rect(grabber_rect, c);
bool display_grabber = (mouse_over_spin || mouse_over_grabber) && !grabbing_spinner && !value_input->is_visible();
if (grabber->is_visible() != display_grabber) {
if (display_grabber) {
grabber->show();
} else {
grabber->hide();
}
}
if (display_grabber) {
Ref<Texture> grabber_tex;
if (mouse_over_grabber) {
grabber_tex = get_icon("grabber_highlight", "HSlider");
} else {
grabber_tex = get_icon("grabber", "HSlider");
}
if (grabber->get_texture() != grabber_tex) {
grabber->set_texture(grabber_tex);
}
grabber->set_size(Size2(0, 0));
grabber->set_position(get_global_position() + grabber_rect.position + grabber_rect.size * 0.5 - grabber->get_size() * 0.5);
if (mousewheel_over_grabber) {
Input::get_singleton()->warp_mouse_position(grabber->get_position() + grabber_rect.size);
}
grabber_range = width;
}
}
}
if (p_what == NOTIFICATION_MOUSE_ENTER) {
mouse_over_spin = true;
update();
}
if (p_what == NOTIFICATION_MOUSE_EXIT) {
mouse_over_spin = false;
update();
}
if (p_what == NOTIFICATION_FOCUS_ENTER) {
/* Sorry, I don't like this, it makes navigating the different fields with arrows more difficult.
* Just press enter to edit.
* if (Input::get_singleton()->is_mouse_button_pressed(BUTTON_LEFT) && !value_input_just_closed) {
_focus_entered();
}*/
if ((Input::get_singleton()->is_action_pressed("ui_focus_next") || Input::get_singleton()->is_action_pressed("ui_focus_prev")) && !value_input_just_closed) {
_focus_entered();
}
value_input_just_closed = false;
}
}
Size2 EditorSpinSlider::get_minimum_size() const {
Ref<StyleBox> sb = get_stylebox("normal", "LineEdit");
Ref<Font> font = get_font("font", "LineEdit");
Size2 ms = sb->get_minimum_size();
ms.height += font->get_height();
return ms;
}
void EditorSpinSlider::set_hide_slider(bool p_hide) {
hide_slider = p_hide;
update();
}
bool EditorSpinSlider::is_hiding_slider() const {
return hide_slider;
}
void EditorSpinSlider::set_label(const String &p_label) {
label = p_label;
update();
}
String EditorSpinSlider::get_label() const {
return label;
}
void EditorSpinSlider::_evaluate_input_text() {
String text = value_input->get_text();
Ref<Expression> expr;
expr.instance();
Error err = expr->parse(text);
if (err != OK) {
return;
}
Variant v = expr->execute(Array(), NULL, false);
if (v.get_type() == Variant::NIL)
return;
set_value(v);
}
//text_entered signal
void EditorSpinSlider::_value_input_entered(const String &p_text) {
value_input_just_closed = true;
value_input->hide();
}
//modal_closed signal
void EditorSpinSlider::_value_input_closed() {
_evaluate_input_text();
value_input_just_closed = true;
}
//focus_exited signal
void EditorSpinSlider::_value_focus_exited() {
// discontinue because the focus_exit was caused by right-click context menu
if (value_input->get_menu()->is_visible())
return;
_evaluate_input_text();
// focus is not on the same element after the vlalue_input was exited
// -> focus is on next element
// -> TAB was pressed
// -> modal_close was not called
// -> need to close/hide manually
if (!value_input_just_closed) { //value_input_just_closed should do the same
value_input->hide();
//tab was pressed
} else {
//enter, click, esc
}
}
void EditorSpinSlider::_grabber_mouse_entered() {
mouse_over_grabber = true;
update();
}
void EditorSpinSlider::_grabber_mouse_exited() {
mouse_over_grabber = false;
update();
}
void EditorSpinSlider::set_read_only(bool p_enable) {
read_only = p_enable;
update();
}
bool EditorSpinSlider::is_read_only() const {
return read_only;
}
void EditorSpinSlider::set_flat(bool p_enable) {
flat = p_enable;
update();
}
bool EditorSpinSlider::is_flat() const {
return flat;
}
void EditorSpinSlider::set_custom_label_color(bool p_use_custom_label_color, Color p_custom_label_color) {
use_custom_label_color = p_use_custom_label_color;
custom_label_color = p_custom_label_color;
}
void EditorSpinSlider::_focus_entered() {
Rect2 gr = get_global_rect();
value_input->set_text(get_text_value());
value_input->set_position(gr.position);
value_input->set_size(gr.size);
value_input->call_deferred("show_modal");
value_input->call_deferred("grab_focus");
value_input->call_deferred("select_all");
value_input->set_focus_next(find_next_valid_focus()->get_path());
value_input->set_focus_previous(find_prev_valid_focus()->get_path());
}
void EditorSpinSlider::_bind_methods() {
ClassDB::bind_method(D_METHOD("set_label", "label"), &EditorSpinSlider::set_label);
ClassDB::bind_method(D_METHOD("get_label"), &EditorSpinSlider::get_label);
ClassDB::bind_method(D_METHOD("set_read_only", "read_only"), &EditorSpinSlider::set_read_only);
ClassDB::bind_method(D_METHOD("is_read_only"), &EditorSpinSlider::is_read_only);
ClassDB::bind_method(D_METHOD("set_flat", "flat"), &EditorSpinSlider::set_flat);
ClassDB::bind_method(D_METHOD("is_flat"), &EditorSpinSlider::is_flat);
ClassDB::bind_method(D_METHOD("_gui_input"), &EditorSpinSlider::_gui_input);
ClassDB::bind_method(D_METHOD("_grabber_mouse_entered"), &EditorSpinSlider::_grabber_mouse_entered);
ClassDB::bind_method(D_METHOD("_grabber_mouse_exited"), &EditorSpinSlider::_grabber_mouse_exited);
ClassDB::bind_method(D_METHOD("_grabber_gui_input"), &EditorSpinSlider::_grabber_gui_input);
ClassDB::bind_method(D_METHOD("_value_input_closed"), &EditorSpinSlider::_value_input_closed);
ClassDB::bind_method(D_METHOD("_value_input_entered"), &EditorSpinSlider::_value_input_entered);
ClassDB::bind_method(D_METHOD("_value_focus_exited"), &EditorSpinSlider::_value_focus_exited);
ADD_PROPERTY(PropertyInfo(Variant::STRING, "label"), "set_label", "get_label");
ADD_PROPERTY(PropertyInfo(Variant::BOOL, "read_only"), "set_read_only", "is_read_only");
ADD_PROPERTY(PropertyInfo(Variant::BOOL, "flat"), "set_flat", "is_flat");
}
EditorSpinSlider::EditorSpinSlider() {
flat = false;
grabbing_spinner_attempt = false;
grabbing_spinner = false;
grabbing_spinner_dist_cache = 0;
pre_grab_value = 0;
set_focus_mode(FOCUS_ALL);
updown_offset = -1;
hover_updown = false;
grabber = memnew(TextureRect);
add_child(grabber);
grabber->hide();
grabber->set_as_toplevel(true);
grabber->set_mouse_filter(MOUSE_FILTER_STOP);
grabber->connect("mouse_entered", this, "_grabber_mouse_entered");
grabber->connect("mouse_exited", this, "_grabber_mouse_exited");
grabber->connect("gui_input", this, "_grabber_gui_input");
mouse_over_spin = false;
mouse_over_grabber = false;
mousewheel_over_grabber = false;
grabbing_grabber = false;
grabber_range = 1;
value_input = memnew(LineEdit);
add_child(value_input);
value_input->set_as_toplevel(true);
value_input->hide();
value_input->connect("modal_closed", this, "_value_input_closed");
value_input->connect("text_entered", this, "_value_input_entered");
value_input->connect("focus_exited", this, "_value_focus_exited");
value_input_just_closed = false;
hide_slider = false;
read_only = false;
use_custom_label_color = false;
}