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299 lines
9.1 KiB
C++
299 lines
9.1 KiB
C++
/**************************************************************************/
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/* subviewport_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) 2014-present Godot Engine contributors (see AUTHORS.md). */
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/* Copyright (c) 2007-2014 Juan Linietsky, Ariel Manzur. */
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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 "subviewport_container.h"
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#include "core/config/engine.h"
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#include "scene/main/viewport.h"
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Size2 SubViewportContainer::get_minimum_size() const {
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if (stretch) {
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return Size2();
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}
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Size2 ms;
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for (int i = 0; i < get_child_count(); i++) {
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SubViewport *c = Object::cast_to<SubViewport>(get_child(i));
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if (!c) {
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continue;
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}
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Size2 minsize = c->get_size();
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ms.width = MAX(ms.width, minsize.width);
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ms.height = MAX(ms.height, minsize.height);
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}
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return ms;
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}
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void SubViewportContainer::set_stretch(bool p_enable) {
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if (stretch == p_enable) {
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return;
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}
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stretch = p_enable;
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recalc_force_viewport_sizes();
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update_minimum_size();
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queue_sort();
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queue_redraw();
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}
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bool SubViewportContainer::is_stretch_enabled() const {
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return stretch;
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}
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void SubViewportContainer::set_stretch_shrink(int p_shrink) {
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ERR_FAIL_COND(p_shrink < 1);
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if (shrink == p_shrink) {
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return;
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}
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shrink = p_shrink;
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recalc_force_viewport_sizes();
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queue_redraw();
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}
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void SubViewportContainer::recalc_force_viewport_sizes() {
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if (!stretch) {
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return;
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}
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// If stretch is enabled, make sure that all child SubViwewports have the correct size.
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for (int i = 0; i < get_child_count(); i++) {
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SubViewport *c = Object::cast_to<SubViewport>(get_child(i));
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if (!c) {
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continue;
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}
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c->set_size_force(get_size() / shrink);
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}
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}
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int SubViewportContainer::get_stretch_shrink() const {
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return shrink;
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}
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Vector<int> SubViewportContainer::get_allowed_size_flags_horizontal() const {
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return Vector<int>();
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}
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Vector<int> SubViewportContainer::get_allowed_size_flags_vertical() const {
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return Vector<int>();
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}
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void SubViewportContainer::_notification(int p_what) {
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switch (p_what) {
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case NOTIFICATION_RESIZED: {
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recalc_force_viewport_sizes();
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} break;
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case NOTIFICATION_ENTER_TREE:
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case NOTIFICATION_VISIBILITY_CHANGED: {
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for (int i = 0; i < get_child_count(); i++) {
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SubViewport *c = Object::cast_to<SubViewport>(get_child(i));
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if (!c) {
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continue;
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}
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if (is_visible_in_tree()) {
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c->set_update_mode(SubViewport::UPDATE_ALWAYS);
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} else {
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c->set_update_mode(SubViewport::UPDATE_DISABLED);
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}
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c->set_handle_input_locally(false); //do not handle input locally here
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}
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} break;
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case NOTIFICATION_DRAW: {
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for (int i = 0; i < get_child_count(); i++) {
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SubViewport *c = Object::cast_to<SubViewport>(get_child(i));
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if (!c) {
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continue;
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}
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if (stretch) {
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draw_texture_rect(c->get_texture(), Rect2(Vector2(), get_size()));
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} else {
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draw_texture_rect(c->get_texture(), Rect2(Vector2(), c->get_size()));
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}
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}
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} break;
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case NOTIFICATION_FOCUS_ENTER: {
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// If focused, send InputEvent to the SubViewport before the Gui-Input stage.
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set_process_input(true);
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set_process_unhandled_input(false);
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} break;
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case NOTIFICATION_FOCUS_EXIT: {
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// A different Control has focus and should receive Gui-Input before the InputEvent is sent to the SubViewport.
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set_process_input(false);
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set_process_unhandled_input(true);
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} break;
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}
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}
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void SubViewportContainer::_notify_viewports(int p_notification) {
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for (int i = 0; i < get_child_count(); i++) {
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SubViewport *c = Object::cast_to<SubViewport>(get_child(i));
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if (!c) {
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continue;
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}
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c->notification(p_notification);
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}
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}
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void SubViewportContainer::input(const Ref<InputEvent> &p_event) {
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_propagate_nonpositional_event(p_event);
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}
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void SubViewportContainer::unhandled_input(const Ref<InputEvent> &p_event) {
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_propagate_nonpositional_event(p_event);
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}
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void SubViewportContainer::_propagate_nonpositional_event(const Ref<InputEvent> &p_event) {
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ERR_FAIL_COND(p_event.is_null());
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if (Engine::get_singleton()->is_editor_hint()) {
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return;
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}
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if (_is_propagated_in_gui_input(p_event)) {
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return;
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}
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bool send;
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if (GDVIRTUAL_CALL(_propagate_input_event, p_event, send)) {
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if (!send) {
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return;
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}
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}
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_send_event_to_viewports(p_event);
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}
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void SubViewportContainer::gui_input(const Ref<InputEvent> &p_event) {
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ERR_FAIL_COND(p_event.is_null());
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if (Engine::get_singleton()->is_editor_hint()) {
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return;
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}
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if (!_is_propagated_in_gui_input(p_event)) {
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return;
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}
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bool send;
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if (GDVIRTUAL_CALL(_propagate_input_event, p_event, send)) {
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if (!send) {
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return;
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}
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}
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if (stretch && shrink > 1) {
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Transform2D xform;
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xform.scale(Vector2(1, 1) / shrink);
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_send_event_to_viewports(p_event->xformed_by(xform));
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} else {
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_send_event_to_viewports(p_event);
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}
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}
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void SubViewportContainer::_send_event_to_viewports(const Ref<InputEvent> &p_event) {
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for (int i = 0; i < get_child_count(); i++) {
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SubViewport *c = Object::cast_to<SubViewport>(get_child(i));
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if (!c || c->is_input_disabled()) {
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continue;
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}
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c->push_input(p_event);
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}
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}
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bool SubViewportContainer::_is_propagated_in_gui_input(const Ref<InputEvent> &p_event) {
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// Propagation of events with a position property happen in gui_input
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// Propagation of other events happen in input
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if (Object::cast_to<InputEventMouse>(*p_event) || Object::cast_to<InputEventScreenDrag>(*p_event) || Object::cast_to<InputEventScreenTouch>(*p_event) || Object::cast_to<InputEventGesture>(*p_event)) {
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return true;
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}
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return false;
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}
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void SubViewportContainer::add_child_notify(Node *p_child) {
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if (Object::cast_to<SubViewport>(p_child)) {
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queue_redraw();
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}
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}
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void SubViewportContainer::remove_child_notify(Node *p_child) {
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if (Object::cast_to<SubViewport>(p_child)) {
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queue_redraw();
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}
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}
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Array SubViewportContainer::get_configuration_warnings() const {
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Array warnings = Node::get_configuration_warnings();
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bool has_viewport = false;
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for (int i = 0; i < get_child_count(); i++) {
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if (Object::cast_to<SubViewport>(get_child(i))) {
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has_viewport = true;
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break;
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}
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}
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if (!has_viewport) {
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warnings.push_back(RTR("This node doesn't have a SubViewport as child, so it can't display its intended content.\nConsider adding a SubViewport as a child to provide something displayable."));
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}
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if (get_default_cursor_shape() != Control::CURSOR_ARROW) {
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warnings.push_back(RTR("The default mouse cursor shape of SubViewportContainer has no effect.\nConsider leaving it at its initial value `CURSOR_ARROW`."));
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}
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return warnings;
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}
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void SubViewportContainer::_bind_methods() {
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ClassDB::bind_method(D_METHOD("set_stretch", "enable"), &SubViewportContainer::set_stretch);
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ClassDB::bind_method(D_METHOD("is_stretch_enabled"), &SubViewportContainer::is_stretch_enabled);
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ClassDB::bind_method(D_METHOD("set_stretch_shrink", "amount"), &SubViewportContainer::set_stretch_shrink);
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ClassDB::bind_method(D_METHOD("get_stretch_shrink"), &SubViewportContainer::get_stretch_shrink);
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ADD_PROPERTY(PropertyInfo(Variant::BOOL, "stretch"), "set_stretch", "is_stretch_enabled");
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ADD_PROPERTY(PropertyInfo(Variant::INT, "stretch_shrink"), "set_stretch_shrink", "get_stretch_shrink");
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GDVIRTUAL_BIND(_propagate_input_event, "event");
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}
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SubViewportContainer::SubViewportContainer() {
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set_process_unhandled_input(true);
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set_focus_mode(FOCUS_CLICK);
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}
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