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.
337 lines
11 KiB
C++
337 lines
11 KiB
C++
/*************************************************************************/
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/* split_container.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 "split_container.h"
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#include "label.h"
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#include "margin_container.h"
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Control *SplitContainer::_getch(int p_idx) const {
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int idx = 0;
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for (int i = 0; i < get_child_count(); i++) {
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Control *c = Object::cast_to<Control>(get_child(i));
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if (!c || !c->is_visible_in_tree())
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continue;
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if (c->is_set_as_toplevel())
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continue;
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if (idx == p_idx)
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return c;
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idx++;
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}
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return nullptr;
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}
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void SplitContainer::_resort() {
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int axis = vertical ? 1 : 0;
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Control *first = _getch(0);
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Control *second = _getch(1);
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// If we have only one element
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if (!first || !second) {
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if (first) {
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fit_child_in_rect(first, Rect2(Point2(), get_size()));
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} else if (second) {
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fit_child_in_rect(second, Rect2(Point2(), get_size()));
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}
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return;
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}
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// Determine expanded children
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bool first_expanded = (vertical ? first->get_v_size_flags() : first->get_h_size_flags()) & SIZE_EXPAND;
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bool second_expanded = (vertical ? second->get_v_size_flags() : second->get_h_size_flags()) & SIZE_EXPAND;
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// Determine the separation between items
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Ref<Texture2D> g = get_theme_icon("grabber");
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int sep = get_theme_constant("separation");
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sep = (dragger_visibility != DRAGGER_HIDDEN_COLLAPSED) ? MAX(sep, vertical ? g->get_height() : g->get_width()) : 0;
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// Compute the minimum size
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Size2 ms_first = first->get_combined_minimum_size();
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Size2 ms_second = second->get_combined_minimum_size();
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// Compute the separator position without the split offset
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float ratio = first->get_stretch_ratio() / (first->get_stretch_ratio() + second->get_stretch_ratio());
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int no_offset_middle_sep = 0;
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if (first_expanded && second_expanded) {
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no_offset_middle_sep = get_size()[axis] * ratio - sep / 2;
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} else if (first_expanded) {
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no_offset_middle_sep = get_size()[axis] - ms_second[axis] - sep;
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} else {
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no_offset_middle_sep = ms_first[axis];
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}
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// Compute the final middle separation
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middle_sep = no_offset_middle_sep;
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if (!collapsed) {
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int clamped_split_offset = CLAMP(split_offset, ms_first[axis] - no_offset_middle_sep, (get_size()[axis] - ms_second[axis] - sep) - no_offset_middle_sep);
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middle_sep += clamped_split_offset;
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if (should_clamp_split_offset) {
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split_offset = clamped_split_offset;
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_change_notify("split_offset");
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should_clamp_split_offset = false;
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}
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}
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if (vertical) {
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fit_child_in_rect(first, Rect2(Point2(0, 0), Size2(get_size().width, middle_sep)));
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int sofs = middle_sep + sep;
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fit_child_in_rect(second, Rect2(Point2(0, sofs), Size2(get_size().width, get_size().height - sofs)));
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} else {
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fit_child_in_rect(first, Rect2(Point2(0, 0), Size2(middle_sep, get_size().height)));
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int sofs = middle_sep + sep;
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fit_child_in_rect(second, Rect2(Point2(sofs, 0), Size2(get_size().width - sofs, get_size().height)));
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}
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update();
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}
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Size2 SplitContainer::get_minimum_size() const {
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/* Calculate MINIMUM SIZE */
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Size2i minimum;
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Ref<Texture2D> g = get_theme_icon("grabber");
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int sep = get_theme_constant("separation");
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sep = (dragger_visibility != DRAGGER_HIDDEN_COLLAPSED) ? MAX(sep, vertical ? g->get_height() : g->get_width()) : 0;
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for (int i = 0; i < 2; i++) {
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if (!_getch(i))
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break;
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if (i == 1) {
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if (vertical)
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minimum.height += sep;
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else
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minimum.width += sep;
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}
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Size2 ms = _getch(i)->get_combined_minimum_size();
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if (vertical) {
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minimum.height += ms.height;
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minimum.width = MAX(minimum.width, ms.width);
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} else {
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minimum.width += ms.width;
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minimum.height = MAX(minimum.height, ms.height);
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}
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}
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return minimum;
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}
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void SplitContainer::_notification(int p_what) {
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switch (p_what) {
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case NOTIFICATION_SORT_CHILDREN: {
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_resort();
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} break;
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case NOTIFICATION_MOUSE_EXIT: {
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mouse_inside = false;
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if (get_theme_constant("autohide"))
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update();
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} break;
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case NOTIFICATION_DRAW: {
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if (!_getch(0) || !_getch(1))
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return;
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if (collapsed || (!dragging && !mouse_inside && get_theme_constant("autohide")))
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return;
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if (dragger_visibility != DRAGGER_VISIBLE)
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return;
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int sep = dragger_visibility != DRAGGER_HIDDEN_COLLAPSED ? get_theme_constant("separation") : 0;
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Ref<Texture2D> tex = get_theme_icon("grabber");
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Size2 size = get_size();
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if (vertical)
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draw_texture(tex, Point2i((size.x - tex->get_width()) / 2, middle_sep + (sep - tex->get_height()) / 2));
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else
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draw_texture(tex, Point2i(middle_sep + (sep - tex->get_width()) / 2, (size.y - tex->get_height()) / 2));
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} break;
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case NOTIFICATION_THEME_CHANGED: {
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minimum_size_changed();
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} break;
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}
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}
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void SplitContainer::_gui_input(const Ref<InputEvent> &p_event) {
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if (collapsed || !_getch(0) || !_getch(1) || dragger_visibility != DRAGGER_VISIBLE)
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return;
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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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int sep = get_theme_constant("separation");
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if (vertical) {
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if (mb->get_position().y > middle_sep && mb->get_position().y < middle_sep + sep) {
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dragging = true;
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drag_from = mb->get_position().y;
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drag_ofs = split_offset;
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}
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} else {
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if (mb->get_position().x > middle_sep && mb->get_position().x < middle_sep + sep) {
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dragging = true;
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drag_from = mb->get_position().x;
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drag_ofs = split_offset;
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}
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}
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} else {
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dragging = 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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bool mouse_inside_state = false;
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if (vertical)
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mouse_inside_state = mm->get_position().y > middle_sep && mm->get_position().y < middle_sep + get_theme_constant("separation");
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else
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mouse_inside_state = mm->get_position().x > middle_sep && mm->get_position().x < middle_sep + get_theme_constant("separation");
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if (mouse_inside != mouse_inside_state) {
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mouse_inside = mouse_inside_state;
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if (get_theme_constant("autohide"))
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update();
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}
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if (!dragging)
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return;
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split_offset = drag_ofs + ((vertical ? mm->get_position().y : mm->get_position().x) - drag_from);
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should_clamp_split_offset = true;
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queue_sort();
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emit_signal("dragged", get_split_offset());
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}
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}
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Control::CursorShape SplitContainer::get_cursor_shape(const Point2 &p_pos) const {
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if (dragging)
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return (vertical ? CURSOR_VSPLIT : CURSOR_HSPLIT);
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if (!collapsed && _getch(0) && _getch(1) && dragger_visibility == DRAGGER_VISIBLE) {
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int sep = get_theme_constant("separation");
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if (vertical) {
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if (p_pos.y > middle_sep && p_pos.y < middle_sep + sep)
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return CURSOR_VSPLIT;
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} else {
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if (p_pos.x > middle_sep && p_pos.x < middle_sep + sep)
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return CURSOR_HSPLIT;
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}
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}
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return Control::get_cursor_shape(p_pos);
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}
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void SplitContainer::set_split_offset(int p_offset) {
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if (split_offset == p_offset)
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return;
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split_offset = p_offset;
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queue_sort();
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}
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int SplitContainer::get_split_offset() const {
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return split_offset;
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}
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void SplitContainer::clamp_split_offset() {
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should_clamp_split_offset = true;
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queue_sort();
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}
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void SplitContainer::set_collapsed(bool p_collapsed) {
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if (collapsed == p_collapsed)
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return;
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collapsed = p_collapsed;
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queue_sort();
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}
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void SplitContainer::set_dragger_visibility(DraggerVisibility p_visibility) {
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dragger_visibility = p_visibility;
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queue_sort();
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update();
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}
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SplitContainer::DraggerVisibility SplitContainer::get_dragger_visibility() const {
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return dragger_visibility;
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}
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bool SplitContainer::is_collapsed() const {
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return collapsed;
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}
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void SplitContainer::_bind_methods() {
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ClassDB::bind_method(D_METHOD("_gui_input"), &SplitContainer::_gui_input);
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ClassDB::bind_method(D_METHOD("set_split_offset", "offset"), &SplitContainer::set_split_offset);
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ClassDB::bind_method(D_METHOD("get_split_offset"), &SplitContainer::get_split_offset);
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ClassDB::bind_method(D_METHOD("clamp_split_offset"), &SplitContainer::clamp_split_offset);
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ClassDB::bind_method(D_METHOD("set_collapsed", "collapsed"), &SplitContainer::set_collapsed);
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ClassDB::bind_method(D_METHOD("is_collapsed"), &SplitContainer::is_collapsed);
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ClassDB::bind_method(D_METHOD("set_dragger_visibility", "mode"), &SplitContainer::set_dragger_visibility);
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ClassDB::bind_method(D_METHOD("get_dragger_visibility"), &SplitContainer::get_dragger_visibility);
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ADD_SIGNAL(MethodInfo("dragged", PropertyInfo(Variant::INT, "offset")));
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ADD_PROPERTY(PropertyInfo(Variant::INT, "split_offset"), "set_split_offset", "get_split_offset");
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ADD_PROPERTY(PropertyInfo(Variant::BOOL, "collapsed"), "set_collapsed", "is_collapsed");
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ADD_PROPERTY(PropertyInfo(Variant::INT, "dragger_visibility", PROPERTY_HINT_ENUM, "Visible,Hidden,Hidden & Collapsed"), "set_dragger_visibility", "get_dragger_visibility");
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BIND_ENUM_CONSTANT(DRAGGER_VISIBLE);
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BIND_ENUM_CONSTANT(DRAGGER_HIDDEN);
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BIND_ENUM_CONSTANT(DRAGGER_HIDDEN_COLLAPSED);
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}
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SplitContainer::SplitContainer(bool p_vertical) {
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mouse_inside = false;
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split_offset = 0;
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should_clamp_split_offset = false;
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middle_sep = 0;
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vertical = p_vertical;
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dragging = false;
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collapsed = false;
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dragger_visibility = DRAGGER_VISIBLE;
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}
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