0be6d925dc
Which means that reduz' beloved style which we all became used to will now be changed automatically to remove the first empty line. This makes us lean closer to 1TBS (the one true brace style) instead of hybridating it with some Allman-inspired spacing. There's still the case of braces around single-statement blocks that needs to be addressed (but clang-format can't help with that, but clang-tidy may if we agree about it). Part of #33027.
271 lines
10 KiB
C++
271 lines
10 KiB
C++
/*************************************************************************/
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/* 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) 2007-2020 Juan Linietsky, Ariel Manzur. */
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/* Copyright (c) 2014-2020 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 "slider.h"
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#include "core/os/keyboard.h"
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Size2 Slider::get_minimum_size() const {
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Ref<StyleBox> style = get_theme_stylebox("slider");
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Size2i ss = style->get_minimum_size() + style->get_center_size();
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Ref<Texture2D> grabber = get_theme_icon("grabber");
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Size2i rs = grabber->get_size();
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if (orientation == HORIZONTAL)
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return Size2i(ss.width, MAX(ss.height, rs.height));
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else
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return Size2i(MAX(ss.width, rs.width), ss.height);
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}
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void Slider::_gui_input(Ref<InputEvent> p_event) {
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if (!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()) {
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if (mb->get_button_index() == BUTTON_LEFT) {
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if (mb->is_pressed()) {
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Ref<Texture2D> grabber = get_theme_icon(mouse_inside || has_focus() ? "grabber_highlight" : "grabber");
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grab.pos = orientation == VERTICAL ? mb->get_position().y : mb->get_position().x;
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double grab_width = (double)grabber->get_size().width;
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double grab_height = (double)grabber->get_size().height;
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double max = orientation == VERTICAL ? get_size().height - grab_height : get_size().width - grab_width;
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if (orientation == VERTICAL)
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set_as_ratio(1 - (((double)grab.pos - (grab_height / 2.0)) / max));
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else
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set_as_ratio(((double)grab.pos - (grab_width / 2.0)) / max);
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grab.active = true;
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grab.uvalue = get_as_ratio();
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} else {
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grab.active = false;
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}
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} else if (scrollable) {
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if (mb->is_pressed() && mb->get_button_index() == BUTTON_WHEEL_UP) {
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set_value(get_value() + get_step());
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} else if (mb->is_pressed() && mb->get_button_index() == BUTTON_WHEEL_DOWN) {
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set_value(get_value() - get_step());
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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 (grab.active) {
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Size2i size = get_size();
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Ref<Texture2D> grabber = get_theme_icon("grabber");
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float motion = (orientation == VERTICAL ? mm->get_position().y : mm->get_position().x) - grab.pos;
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if (orientation == VERTICAL)
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motion = -motion;
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float areasize = orientation == VERTICAL ? size.height - grabber->get_size().height : size.width - grabber->get_size().width;
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if (areasize <= 0)
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return;
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float umotion = motion / float(areasize);
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set_as_ratio(grab.uvalue + umotion);
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}
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}
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if (!mm.is_valid() && !mb.is_valid()) {
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if (p_event->is_action_pressed("ui_left", true)) {
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if (orientation != HORIZONTAL)
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return;
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set_value(get_value() - (custom_step >= 0 ? custom_step : get_step()));
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accept_event();
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} else if (p_event->is_action_pressed("ui_right", true)) {
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if (orientation != HORIZONTAL)
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return;
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set_value(get_value() + (custom_step >= 0 ? custom_step : get_step()));
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accept_event();
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} else if (p_event->is_action_pressed("ui_up", true)) {
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if (orientation != VERTICAL)
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return;
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set_value(get_value() + (custom_step >= 0 ? custom_step : get_step()));
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accept_event();
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} else if (p_event->is_action_pressed("ui_down", true)) {
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if (orientation != VERTICAL)
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return;
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set_value(get_value() - (custom_step >= 0 ? custom_step : get_step()));
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accept_event();
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} else if (p_event->is_action("ui_home") && p_event->is_pressed()) {
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set_value(get_min());
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accept_event();
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} else if (p_event->is_action("ui_end") && p_event->is_pressed()) {
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set_value(get_max());
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accept_event();
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}
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}
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}
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void Slider::_notification(int p_what) {
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switch (p_what) {
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case NOTIFICATION_THEME_CHANGED: {
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minimum_size_changed();
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update();
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} break;
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case NOTIFICATION_MOUSE_ENTER: {
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mouse_inside = true;
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update();
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} break;
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case NOTIFICATION_MOUSE_EXIT: {
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mouse_inside = false;
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update();
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} break;
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case NOTIFICATION_VISIBILITY_CHANGED: // fallthrough
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case NOTIFICATION_EXIT_TREE: {
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mouse_inside = false;
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grab.active = false;
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} break;
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case NOTIFICATION_DRAW: {
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RID ci = get_canvas_item();
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Size2i size = get_size();
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Ref<StyleBox> style = get_theme_stylebox("slider");
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bool highlighted = mouse_inside || has_focus();
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Ref<StyleBox> grabber_area = get_theme_stylebox(highlighted ? "grabber_area_highlight" : "grabber_area");
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Ref<Texture2D> grabber = get_theme_icon(editable ? (highlighted ? "grabber_highlight" : "grabber") : "grabber_disabled");
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Ref<Texture2D> tick = get_theme_icon("tick");
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double ratio = Math::is_nan(get_as_ratio()) ? 0 : get_as_ratio();
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if (orientation == VERTICAL) {
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int widget_width = style->get_minimum_size().width + style->get_center_size().width;
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float areasize = size.height - grabber->get_size().height;
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style->draw(ci, Rect2i(Point2i(size.width / 2 - widget_width / 2, 0), Size2i(widget_width, size.height)));
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grabber_area->draw(ci, Rect2i(Point2i((size.width - widget_width) / 2, size.height - areasize * ratio - grabber->get_size().height / 2), Size2i(widget_width, areasize * ratio + grabber->get_size().width / 2)));
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if (ticks > 1) {
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int grabber_offset = (grabber->get_size().height / 2 - tick->get_height() / 2);
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for (int i = 0; i < ticks; i++) {
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if (!ticks_on_borders && (i == 0 || i + 1 == ticks))
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continue;
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int ofs = (i * areasize / (ticks - 1)) + grabber_offset;
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tick->draw(ci, Point2i((size.width - widget_width) / 2, ofs));
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}
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}
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grabber->draw(ci, Point2i(size.width / 2 - grabber->get_size().width / 2, size.height - ratio * areasize - grabber->get_size().height));
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} else {
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int widget_height = style->get_minimum_size().height + style->get_center_size().height;
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float areasize = size.width - grabber->get_size().width;
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style->draw(ci, Rect2i(Point2i(0, (size.height - widget_height) / 2), Size2i(size.width, widget_height)));
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grabber_area->draw(ci, Rect2i(Point2i(0, (size.height - widget_height) / 2), Size2i(areasize * ratio + grabber->get_size().width / 2, widget_height)));
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if (ticks > 1) {
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int grabber_offset = (grabber->get_size().width / 2 - tick->get_width() / 2);
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for (int i = 0; i < ticks; i++) {
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if ((!ticks_on_borders) && ((i == 0) || ((i + 1) == ticks)))
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continue;
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int ofs = (i * areasize / (ticks - 1)) + grabber_offset;
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tick->draw(ci, Point2i(ofs, (size.height - widget_height) / 2));
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}
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}
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grabber->draw(ci, Point2i(ratio * areasize, size.height / 2 - grabber->get_size().height / 2));
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}
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} break;
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}
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}
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void Slider::set_custom_step(float p_custom_step) {
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custom_step = p_custom_step;
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}
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float Slider::get_custom_step() const {
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return custom_step;
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}
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void Slider::set_ticks(int p_count) {
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ticks = p_count;
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update();
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}
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int Slider::get_ticks() const {
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return ticks;
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}
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bool Slider::get_ticks_on_borders() const {
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return ticks_on_borders;
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}
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void Slider::set_ticks_on_borders(bool _tob) {
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ticks_on_borders = _tob;
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update();
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}
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void Slider::set_editable(bool p_editable) {
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editable = p_editable;
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update();
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}
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bool Slider::is_editable() const {
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return editable;
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}
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void Slider::set_scrollable(bool p_scrollable) {
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scrollable = p_scrollable;
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}
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bool Slider::is_scrollable() const {
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return scrollable;
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}
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void Slider::_bind_methods() {
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ClassDB::bind_method(D_METHOD("_gui_input"), &Slider::_gui_input);
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ClassDB::bind_method(D_METHOD("set_ticks", "count"), &Slider::set_ticks);
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ClassDB::bind_method(D_METHOD("get_ticks"), &Slider::get_ticks);
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ClassDB::bind_method(D_METHOD("get_ticks_on_borders"), &Slider::get_ticks_on_borders);
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ClassDB::bind_method(D_METHOD("set_ticks_on_borders", "ticks_on_border"), &Slider::set_ticks_on_borders);
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ClassDB::bind_method(D_METHOD("set_editable", "editable"), &Slider::set_editable);
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ClassDB::bind_method(D_METHOD("is_editable"), &Slider::is_editable);
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ClassDB::bind_method(D_METHOD("set_scrollable", "scrollable"), &Slider::set_scrollable);
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ClassDB::bind_method(D_METHOD("is_scrollable"), &Slider::is_scrollable);
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ADD_PROPERTY(PropertyInfo(Variant::BOOL, "editable"), "set_editable", "is_editable");
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ADD_PROPERTY(PropertyInfo(Variant::BOOL, "scrollable"), "set_scrollable", "is_scrollable");
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ADD_PROPERTY(PropertyInfo(Variant::INT, "tick_count", PROPERTY_HINT_RANGE, "0,4096,1"), "set_ticks", "get_ticks");
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ADD_PROPERTY(PropertyInfo(Variant::BOOL, "ticks_on_borders"), "set_ticks_on_borders", "get_ticks_on_borders");
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}
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Slider::Slider(Orientation p_orientation) {
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orientation = p_orientation;
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mouse_inside = false;
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grab.active = false;
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ticks = 0;
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ticks_on_borders = false;
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custom_step = -1;
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editable = true;
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scrollable = true;
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set_focus_mode(FOCUS_ALL);
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}
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