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viewport.cpp
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/**************************************************************************/
/* viewport.cpp */
/**************************************************************************/
/* This file is part of: */
/* GODOT ENGINE */
/* https://godotengine.org */
/**************************************************************************/
/* Copyright (c) 2014-present Godot Engine contributors (see AUTHORS.md). */
/* Copyright (c) 2007-2014 Juan Linietsky, Ariel Manzur. */
/* */
/* 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 "viewport.h"
#include "core/config/project_settings.h"
#include "core/debugger/engine_debugger.h"
#include "core/string/translation.h"
#include "core/templates/pair.h"
#include "core/templates/sort_array.h"
#include "scene/2d/audio_listener_2d.h"
#include "scene/2d/camera_2d.h"
#include "scene/2d/physics/collision_object_2d.h"
#ifndef _3D_DISABLED
#include "scene/3d/audio_listener_3d.h"
#include "scene/3d/camera_3d.h"
#include "scene/3d/physics/collision_object_3d.h"
#include "scene/3d/world_environment.h"
#endif // _3D_DISABLED
#include "scene/gui/control.h"
#include "scene/gui/label.h"
#include "scene/gui/popup.h"
#include "scene/gui/popup_menu.h"
#include "scene/gui/subviewport_container.h"
#include "scene/main/canvas_layer.h"
#include "scene/main/window.h"
#include "scene/resources/mesh.h"
#include "scene/resources/text_line.h"
#include "scene/resources/world_2d.h"
#include "servers/audio_server.h"
#include "servers/rendering/rendering_server_globals.h"
void ViewportTexture::setup_local_to_scene() {
// For the same target viewport, setup is only allowed once to prevent multiple free or multiple creations.
if (!vp_changed) {
return;
}
if (vp_pending) {
return;
}
Node *loc_scene = get_local_scene();
if (!loc_scene) {
return;
}
if (vp) {
vp->viewport_textures.erase(this);
vp = nullptr;
}
if (loc_scene->is_ready()) {
_setup_local_to_scene(loc_scene);
} else {
loc_scene->connect(SceneStringName(ready), callable_mp(this, &ViewportTexture::_setup_local_to_scene).bind(loc_scene), CONNECT_ONE_SHOT);
vp_pending = true;
}
}
void ViewportTexture::reset_local_to_scene() {
vp_changed = true;
if (vp) {
vp->viewport_textures.erase(this);
vp = nullptr;
}
if (proxy.is_valid() && proxy_ph.is_null()) {
proxy_ph = RS::get_singleton()->texture_2d_placeholder_create();
RS::get_singleton()->texture_proxy_update(proxy, proxy_ph);
}
}
void ViewportTexture::set_viewport_path_in_scene(const NodePath &p_path) {
if (path == p_path) {
return;
}
path = p_path;
reset_local_to_scene();
if (get_local_scene() && !path.is_empty()) {
setup_local_to_scene();
} else {
if (path.is_empty()) {
vp_changed = false;
}
emit_changed();
}
}
NodePath ViewportTexture::get_viewport_path_in_scene() const {
return path;
}
int ViewportTexture::get_width() const {
if (!vp) {
_err_print_viewport_not_set();
return 0;
}
return vp->size.width;
}
int ViewportTexture::get_height() const {
if (!vp) {
_err_print_viewport_not_set();
return 0;
}
return vp->size.height;
}
Size2 ViewportTexture::get_size() const {
if (!vp) {
_err_print_viewport_not_set();
return Size2();
}
return vp->size;
}
RID ViewportTexture::get_rid() const {
if (proxy.is_null()) {
proxy_ph = RS::get_singleton()->texture_2d_placeholder_create();
proxy = RS::get_singleton()->texture_proxy_create(proxy_ph);
}
return proxy;
}
bool ViewportTexture::has_alpha() const {
return false;
}
Ref<Image> ViewportTexture::get_image() const {
if (!vp) {
_err_print_viewport_not_set();
return Ref<Image>();
}
return RS::get_singleton()->texture_2d_get(vp->texture_rid);
}
void ViewportTexture::_err_print_viewport_not_set() const {
if (!vp_pending && !vp_changed) {
ERR_PRINT("Viewport Texture must be set to use it.");
}
}
void ViewportTexture::_setup_local_to_scene(const Node *p_loc_scene) {
// Always reset this, even if this call fails with an error.
vp_pending = false;
Node *vpn = p_loc_scene->get_node_or_null(path);
ERR_FAIL_NULL_MSG(vpn, "Path to node is invalid: '" + path + "'.");
vp = Object::cast_to<Viewport>(vpn);
ERR_FAIL_NULL_MSG(vp, "Path to node does not point to a viewport: '" + path + "'.");
vp->viewport_textures.insert(this);
ERR_FAIL_NULL(RenderingServer::get_singleton());
if (proxy_ph.is_valid()) {
RS::get_singleton()->texture_proxy_update(proxy, vp->texture_rid);
RS::get_singleton()->free(proxy_ph);
proxy_ph = RID();
} else {
ERR_FAIL_COND(proxy.is_valid()); // Should be invalid.
proxy = RS::get_singleton()->texture_proxy_create(vp->texture_rid);
}
vp_changed = false;
emit_changed();
}
void ViewportTexture::_bind_methods() {
ClassDB::bind_method(D_METHOD("set_viewport_path_in_scene", "path"), &ViewportTexture::set_viewport_path_in_scene);
ClassDB::bind_method(D_METHOD("get_viewport_path_in_scene"), &ViewportTexture::get_viewport_path_in_scene);
ADD_PROPERTY(PropertyInfo(Variant::NODE_PATH, "viewport_path", PROPERTY_HINT_NODE_PATH_VALID_TYPES, "Viewport", PROPERTY_USAGE_DEFAULT | PROPERTY_USAGE_NODE_PATH_FROM_SCENE_ROOT), "set_viewport_path_in_scene", "get_viewport_path_in_scene");
}
ViewportTexture::ViewportTexture() {
set_local_to_scene(true);
}
ViewportTexture::~ViewportTexture() {
if (vp) {
vp->viewport_textures.erase(this);
}
ERR_FAIL_NULL(RenderingServer::get_singleton());
if (proxy_ph.is_valid()) {
RS::get_singleton()->free(proxy_ph);
}
if (proxy.is_valid()) {
RS::get_singleton()->free(proxy);
}
}
void Viewport::_process_dirty_canvas_parent_orders() {
for (const ObjectID &id : gui.canvas_parents_with_dirty_order) {
Object *obj = ObjectDB::get_instance(id);
if (!obj) {
continue; // May have been deleted.
}
Node *n = static_cast<Node *>(obj);
for (int i = 0; i < n->get_child_count(); i++) {
Node *c = n->get_child(i);
CanvasItem *ci = Object::cast_to<CanvasItem>(c);
if (ci) {
ci->update_draw_order();
continue;
}
CanvasLayer *cl = Object::cast_to<CanvasLayer>(c);
if (cl) {
cl->update_draw_order();
}
}
}
gui.canvas_parents_with_dirty_order.clear();
}
void Viewport::_sub_window_update_order() {
if (gui.sub_windows.size() < 2) {
return;
}
if (!gui.sub_windows[gui.sub_windows.size() - 1].window->get_flag(Window::FLAG_ALWAYS_ON_TOP)) {
int index = gui.sub_windows.size() - 1;
while (index > 0 && gui.sub_windows[index - 1].window->get_flag(Window::FLAG_ALWAYS_ON_TOP)) {
--index;
}
if (index != (gui.sub_windows.size() - 1)) {
SubWindow sw = gui.sub_windows[gui.sub_windows.size() - 1];
gui.sub_windows.remove_at(gui.sub_windows.size() - 1);
gui.sub_windows.insert(index, sw);
}
}
for (int i = 0; i < gui.sub_windows.size(); i++) {
RS::get_singleton()->canvas_item_set_draw_index(gui.sub_windows[i].canvas_item, i);
}
}
void Viewport::_sub_window_register(Window *p_window) {
ERR_FAIL_COND(!is_inside_tree());
for (int i = 0; i < gui.sub_windows.size(); i++) {
ERR_FAIL_COND(gui.sub_windows[i].window == p_window);
}
if (gui.sub_windows.size() == 0) {
subwindow_canvas = RS::get_singleton()->canvas_create();
RS::get_singleton()->viewport_attach_canvas(viewport, subwindow_canvas);
RS::get_singleton()->viewport_set_canvas_stacking(viewport, subwindow_canvas, SUBWINDOW_CANVAS_LAYER, 0);
}
SubWindow sw;
sw.canvas_item = RS::get_singleton()->canvas_item_create();
RS::get_singleton()->canvas_item_set_parent(sw.canvas_item, subwindow_canvas);
sw.window = p_window;
gui.sub_windows.push_back(sw);
if (gui.subwindow_drag == SUB_WINDOW_DRAG_DISABLED) {
if (p_window->get_flag(Window::FLAG_NO_FOCUS)) {
_sub_window_update_order();
} else {
_sub_window_grab_focus(p_window);
}
} else {
int index = _sub_window_find(gui.currently_dragged_subwindow);
sw = gui.sub_windows[index];
gui.sub_windows.remove_at(index);
gui.sub_windows.push_back(sw);
_sub_window_update_order();
}
RenderingServer::get_singleton()->viewport_set_parent_viewport(p_window->viewport, viewport);
}
void Viewport::_sub_window_update(Window *p_window) {
int index = _sub_window_find(p_window);
ERR_FAIL_COND(index == -1);
SubWindow &sw = gui.sub_windows.write[index];
sw.pending_window_update = false;
Transform2D pos;
pos.set_origin(p_window->get_position());
RS::get_singleton()->canvas_item_clear(sw.canvas_item);
Rect2i r = Rect2i(p_window->get_position(), sw.window->get_size());
if (!p_window->get_flag(Window::FLAG_BORDERLESS)) {
Ref<StyleBox> panel = gui.subwindow_focused == p_window ? p_window->theme_cache.embedded_border : p_window->theme_cache.embedded_unfocused_border;
panel->draw(sw.canvas_item, r);
// Draw the title bar text.
Ref<Font> title_font = p_window->theme_cache.title_font;
int font_size = p_window->theme_cache.title_font_size;
Color title_color = p_window->theme_cache.title_color;
int title_height = p_window->theme_cache.title_height;
int close_h_ofs = p_window->theme_cache.close_h_offset;
int close_v_ofs = p_window->theme_cache.close_v_offset;
TextLine title_text = TextLine(p_window->get_translated_title(), title_font, font_size);
title_text.set_width(r.size.width - panel->get_minimum_size().x - close_h_ofs);
title_text.set_direction(p_window->is_layout_rtl() ? TextServer::DIRECTION_RTL : TextServer::DIRECTION_LTR);
int x = (r.size.width - title_text.get_size().x) / 2;
int y = (-title_height - title_text.get_size().y) / 2;
Color font_outline_color = p_window->theme_cache.title_outline_modulate;
int outline_size = p_window->theme_cache.title_outline_size;
if (outline_size > 0 && font_outline_color.a > 0) {
title_text.draw_outline(sw.canvas_item, r.position + Point2(x, y), outline_size, font_outline_color);
}
title_text.draw(sw.canvas_item, r.position + Point2(x, y), title_color);
bool pressed = gui.subwindow_focused == sw.window && gui.subwindow_drag == SUB_WINDOW_DRAG_CLOSE && gui.subwindow_drag_close_inside;
Ref<Texture2D> close_icon = pressed ? p_window->theme_cache.close_pressed : p_window->theme_cache.close;
close_icon->draw(sw.canvas_item, r.position + Vector2(r.size.width - close_h_ofs, -close_v_ofs));
}
const Transform2D xform = sw.window->window_transform * sw.window->stretch_transform;
Rect2 vr = xform.xform(sw.window->get_visible_rect());
vr.position += p_window->get_position();
if (vr != r) {
RS::get_singleton()->canvas_item_add_rect(sw.canvas_item, r, Color());
}
RS::get_singleton()->canvas_item_add_texture_rect(sw.canvas_item, vr, sw.window->get_texture()->get_rid());
}
void Viewport::_sub_window_grab_focus(Window *p_window) {
if (p_window == nullptr) {
// Release current focus.
if (gui.subwindow_focused) {
gui.subwindow_focused->_event_callback(DisplayServer::WINDOW_EVENT_FOCUS_OUT);
gui.subwindow_focused = nullptr;
gui.subwindow_drag = SUB_WINDOW_DRAG_DISABLED;
}
Window *this_window = Object::cast_to<Window>(this);
if (this_window) {
this_window->_event_callback(DisplayServer::WINDOW_EVENT_FOCUS_IN);
}
return;
}
// The index needs to be update before every usage in case an event callback changed the window list.
int index = _sub_window_find(p_window);
ERR_FAIL_COND(index == -1);
if (p_window->get_flag(Window::FLAG_NO_FOCUS)) {
// Release current focus.
if (gui.subwindow_focused) {
gui.subwindow_focused->_event_callback(DisplayServer::WINDOW_EVENT_FOCUS_OUT);
gui.subwindow_focused = nullptr;
gui.subwindow_drag = SUB_WINDOW_DRAG_DISABLED;
}
// Can only move to foreground, but no focus granted.
index = _sub_window_find(p_window);
ERR_FAIL_COND(index == -1);
SubWindow sw = gui.sub_windows[index];
gui.sub_windows.remove_at(index);
gui.sub_windows.push_back(sw);
_sub_window_update_order();
return;
}
if (gui.subwindow_focused) {
if (gui.subwindow_focused == p_window) {
return; // Nothing to do.
}
gui.subwindow_focused->_event_callback(DisplayServer::WINDOW_EVENT_FOCUS_OUT);
gui.subwindow_drag = SUB_WINDOW_DRAG_DISABLED;
} else {
Window *this_window = Object::cast_to<Window>(this);
if (this_window) {
this_window->_event_callback(DisplayServer::WINDOW_EVENT_FOCUS_OUT);
}
}
Window *old_focus = gui.subwindow_focused;
gui.subwindow_focused = p_window;
gui.subwindow_focused->_event_callback(DisplayServer::WINDOW_EVENT_FOCUS_IN);
{ // Move to foreground.
index = _sub_window_find(p_window);
ERR_FAIL_COND(index == -1);
SubWindow sw = gui.sub_windows[index];
gui.sub_windows.remove_at(index);
gui.sub_windows.push_back(sw);
index = gui.sub_windows.size() - 1;
_sub_window_update_order();
}
if (old_focus) {
_sub_window_update(old_focus);
}
_sub_window_update(p_window);
}
void Viewport::_sub_window_remove(Window *p_window) {
int index = _sub_window_find(p_window);
ERR_FAIL_COND(index == -1);
ERR_FAIL_NULL(RenderingServer::get_singleton());
SubWindow sw = gui.sub_windows[index];
if (gui.subwindow_over == sw.window) {
sw.window->_mouse_leave_viewport();
gui.subwindow_over = nullptr;
}
RS::get_singleton()->free(sw.canvas_item);
gui.sub_windows.remove_at(index);
if (gui.sub_windows.size() == 0) {
RS::get_singleton()->free(subwindow_canvas);
subwindow_canvas = RID();
}
if (gui.currently_dragged_subwindow == p_window) {
gui.subwindow_drag = SUB_WINDOW_DRAG_DISABLED;
gui.currently_dragged_subwindow = nullptr;
}
if (gui.subwindow_focused == p_window) {
Window *new_focused_window;
Window *parent_visible = p_window->get_parent_visible_window();
gui.subwindow_focused->_event_callback(DisplayServer::WINDOW_EVENT_FOCUS_OUT);
if (parent_visible) {
new_focused_window = parent_visible;
} else {
new_focused_window = Object::cast_to<Window>(this);
}
if (new_focused_window) {
int new_focused_index = _sub_window_find(new_focused_window);
if (new_focused_index != -1) {
gui.subwindow_focused = new_focused_window;
} else {
gui.subwindow_focused = nullptr;
}
new_focused_window->_event_callback(DisplayServer::WINDOW_EVENT_FOCUS_IN);
} else {
gui.subwindow_focused = nullptr;
}
}
RenderingServer::get_singleton()->viewport_set_parent_viewport(p_window->viewport, p_window->parent ? p_window->parent->viewport : RID());
}
int Viewport::_sub_window_find(Window *p_window) const {
for (int i = 0; i < gui.sub_windows.size(); i++) {
if (gui.sub_windows[i].window == p_window) {
return i;
}
}
return -1;
}
void Viewport::_update_viewport_path() {
if (viewport_textures.is_empty()) {
return;
}
Node *scene_root = get_scene_file_path().is_empty() ? get_owner() : this;
if (!scene_root && is_inside_tree()) {
scene_root = get_tree()->get_edited_scene_root();
}
if (scene_root && (scene_root == this || scene_root->is_ancestor_of(this))) {
NodePath path_in_scene = scene_root->get_path_to(this);
for (ViewportTexture *E : viewport_textures) {
E->path = path_in_scene;
}
}
}
void Viewport::_notification(int p_what) {
ERR_MAIN_THREAD_GUARD;
switch (p_what) {
case NOTIFICATION_ENTER_TREE: {
_update_viewport_path();
if (get_parent()) {
parent = get_parent()->get_viewport();
RenderingServer::get_singleton()->viewport_set_parent_viewport(viewport, parent->get_viewport_rid());
} else {
parent = nullptr;
}
current_canvas = find_world_2d()->get_canvas();
RenderingServer::get_singleton()->viewport_attach_canvas(viewport, current_canvas);
RenderingServer::get_singleton()->viewport_set_canvas_transform(viewport, current_canvas, canvas_transform);
RenderingServer::get_singleton()->viewport_set_canvas_cull_mask(viewport, canvas_cull_mask);
_update_audio_listener_2d();
#ifndef _3D_DISABLED
RenderingServer::get_singleton()->viewport_set_scenario(viewport, find_world_3d()->get_scenario());
_update_audio_listener_3d();
#endif // _3D_DISABLED
add_to_group("_viewports");
if (get_tree()->is_debugging_collisions_hint()) {
PhysicsServer2D::get_singleton()->space_set_debug_contacts(find_world_2d()->get_space(), get_tree()->get_collision_debug_contact_count());
contact_2d_debug = RenderingServer::get_singleton()->canvas_item_create();
RenderingServer::get_singleton()->canvas_item_set_parent(contact_2d_debug, current_canvas);
#ifndef _3D_DISABLED
PhysicsServer3D::get_singleton()->space_set_debug_contacts(find_world_3d()->get_space(), get_tree()->get_collision_debug_contact_count());
contact_3d_debug_multimesh = RenderingServer::get_singleton()->multimesh_create();
RenderingServer::get_singleton()->multimesh_allocate_data(contact_3d_debug_multimesh, get_tree()->get_collision_debug_contact_count(), RS::MULTIMESH_TRANSFORM_3D, false);
RenderingServer::get_singleton()->multimesh_set_visible_instances(contact_3d_debug_multimesh, 0);
RenderingServer::get_singleton()->multimesh_set_mesh(contact_3d_debug_multimesh, get_tree()->get_debug_contact_mesh()->get_rid());
contact_3d_debug_instance = RenderingServer::get_singleton()->instance_create();
RenderingServer::get_singleton()->instance_set_base(contact_3d_debug_instance, contact_3d_debug_multimesh);
RenderingServer::get_singleton()->instance_set_scenario(contact_3d_debug_instance, find_world_3d()->get_scenario());
RenderingServer::get_singleton()->instance_geometry_set_flag(contact_3d_debug_instance, RS::INSTANCE_FLAG_DRAW_NEXT_FRAME_IF_VISIBLE, true);
#endif // _3D_DISABLED
set_physics_process_internal(true);
}
} break;
case NOTIFICATION_READY: {
#ifndef _3D_DISABLED
if (audio_listener_3d_set.size() && !audio_listener_3d) {
AudioListener3D *first = nullptr;
for (AudioListener3D *E : audio_listener_3d_set) {
if (first == nullptr || first->is_greater_than(E)) {
first = E;
}
}
if (first) {
first->make_current();
}
}
if (camera_3d_set.size() && !camera_3d) {
// There are cameras but no current camera, pick first in tree and make it current.
Camera3D *first = nullptr;
for (Camera3D *E : camera_3d_set) {
if (first == nullptr || first->is_greater_than(E)) {
first = E;
}
}
if (first) {
first->make_current();
}
}
#endif // _3D_DISABLED
} break;
case NOTIFICATION_EXIT_TREE: {
_gui_cancel_tooltip();
RenderingServer::get_singleton()->viewport_set_scenario(viewport, RID());
RenderingServer::get_singleton()->viewport_remove_canvas(viewport, current_canvas);
if (contact_2d_debug.is_valid()) {
RenderingServer::get_singleton()->free(contact_2d_debug);
contact_2d_debug = RID();
}
if (contact_3d_debug_multimesh.is_valid()) {
RenderingServer::get_singleton()->free(contact_3d_debug_multimesh);
RenderingServer::get_singleton()->free(contact_3d_debug_instance);
contact_3d_debug_instance = RID();
contact_3d_debug_multimesh = RID();
}
remove_from_group("_viewports");
set_physics_process_internal(false);
RS::get_singleton()->viewport_set_active(viewport, false);
RenderingServer::get_singleton()->viewport_set_parent_viewport(viewport, RID());
} break;
case NOTIFICATION_PATH_RENAMED: {
_update_viewport_path();
} break;
case NOTIFICATION_INTERNAL_PHYSICS_PROCESS: {
if (!get_tree()) {
return;
}
if (get_tree()->is_debugging_collisions_hint() && contact_2d_debug.is_valid()) {
RenderingServer::get_singleton()->canvas_item_clear(contact_2d_debug);
RenderingServer::get_singleton()->canvas_item_set_draw_index(contact_2d_debug, 0xFFFFF); //very high index
Vector<Vector2> points = PhysicsServer2D::get_singleton()->space_get_contacts(find_world_2d()->get_space());
int point_count = PhysicsServer2D::get_singleton()->space_get_contact_count(find_world_2d()->get_space());
Color ccol = get_tree()->get_debug_collision_contact_color();
for (int i = 0; i < point_count; i++) {
RenderingServer::get_singleton()->canvas_item_add_rect(contact_2d_debug, Rect2(points[i] - Vector2(2, 2), Vector2(5, 5)), ccol);
}
}
#ifndef _3D_DISABLED
if (get_tree()->is_debugging_collisions_hint() && contact_3d_debug_multimesh.is_valid()) {
Vector<Vector3> points = PhysicsServer3D::get_singleton()->space_get_contacts(find_world_3d()->get_space());
int point_count = PhysicsServer3D::get_singleton()->space_get_contact_count(find_world_3d()->get_space());
RS::get_singleton()->multimesh_set_visible_instances(contact_3d_debug_multimesh, point_count);
for (int i = 0; i < point_count; i++) {
Transform3D point_transform;
point_transform.origin = points[i];
RS::get_singleton()->multimesh_instance_set_transform(contact_3d_debug_multimesh, i, point_transform);
}
}
#endif // _3D_DISABLED
} break;
case NOTIFICATION_VP_MOUSE_ENTER: {
gui.mouse_in_viewport = true;
} break;
case NOTIFICATION_VP_MOUSE_EXIT: {
gui.mouse_in_viewport = false;
_drop_physics_mouseover();
// When the mouse exits the viewport, we don't want to end
// mouse_focus, because, for example, we want to continue
// dragging a scrollbar even if the mouse has left the viewport.
} break;
case NOTIFICATION_WM_WINDOW_FOCUS_OUT: {
_gui_cancel_tooltip();
_drop_physics_mouseover();
_drop_mouse_focus();
// When the window focus changes, we want to end mouse_focus, but
// not the mouse_over. Note: The OS will trigger a separate mouse
// exit event if the change in focus results in the mouse exiting
// the window.
} break;
case NOTIFICATION_PREDELETE: {
if (gui_parent) {
gui_parent->gui.tooltip_popup = nullptr;
gui_parent->gui.tooltip_label = nullptr;
}
} break;
}
}
void Viewport::_process_picking() {
if (!is_inside_tree()) {
return;
}
if (!physics_object_picking) {
return;
}
if (Object::cast_to<Window>(this) && Input::get_singleton()->get_mouse_mode() == Input::MOUSE_MODE_CAPTURED) {
return;
}
if (!gui.mouse_in_viewport || gui.subwindow_over) {
// Clear picking events if the mouse has left the viewport or is over an embedded window.
// These are locations, that are expected to not trigger physics picking.
physics_picking_events.clear();
return;
}
#ifndef _3D_DISABLED
if (use_xr) {
if (XRServer::get_singleton() != nullptr) {
Ref<XRInterface> xr_interface = XRServer::get_singleton()->get_primary_interface();
if (xr_interface.is_valid() && xr_interface->is_initialized() && xr_interface->get_view_count() > 1) {
WARN_PRINT_ONCE("Object picking can't be used when stereo rendering, this will be turned off!");
physics_object_picking = false; // don't try again.
return;
}
}
}
#endif
_drop_physics_mouseover(true);
#ifndef _3D_DISABLED
Vector2 last_pos(1e20, 1e20);
CollisionObject3D *last_object = nullptr;
ObjectID last_id;
PhysicsDirectSpaceState3D::RayResult result;
#endif // _3D_DISABLED
PhysicsDirectSpaceState2D *ss2d = PhysicsServer2D::get_singleton()->space_get_direct_state(find_world_2d()->get_space());
SubViewportContainer *parent_svc = Object::cast_to<SubViewportContainer>(get_parent());
bool parent_ignore_mouse = (parent_svc && parent_svc->get_mouse_filter() == Control::MOUSE_FILTER_IGNORE);
bool create_passive_hover_event = true;
if (gui.mouse_over || parent_ignore_mouse) {
// When the mouse is over a Control node, passive hovering would cause input events for Colliders, that are behind Control nodes.
// When parent SubViewportContainer ignores mouse, that setting should be respected.
create_passive_hover_event = false;
} else {
for (const Ref<InputEvent> &e : physics_picking_events) {
Ref<InputEventMouse> m = e;
if (m.is_valid()) {
// A mouse event exists, so passive hovering isn't necessary.
create_passive_hover_event = false;
break;
}
}
}
if (create_passive_hover_event) {
// Create a mouse motion event. This is necessary because objects or camera may have moved.
// While this extra event is sent, it is checked if both camera and last object and last ID did not move.
// If nothing changed, the event is discarded to avoid flooding with unnecessary motion events every frame.
Ref<InputEventMouseMotion> mm;
mm.instantiate();
mm->set_device(InputEvent::DEVICE_ID_INTERNAL);
mm->set_position(get_mouse_position());
mm->set_global_position(mm->get_position());
mm->set_alt_pressed(Input::get_singleton()->is_key_pressed(Key::ALT));
mm->set_shift_pressed(Input::get_singleton()->is_key_pressed(Key::SHIFT));
mm->set_ctrl_pressed(Input::get_singleton()->is_key_pressed(Key::CTRL));
mm->set_meta_pressed(Input::get_singleton()->is_key_pressed(Key::META));
mm->set_button_mask(Input::get_singleton()->get_mouse_button_mask());
physics_picking_events.push_back(mm);
}
while (physics_picking_events.size()) {
local_input_handled = false;
if (!handle_input_locally) {
Viewport *vp = this;
while (!Object::cast_to<Window>(vp) && vp->get_parent()) {
vp = vp->get_parent()->get_viewport();
}
vp->local_input_handled = false;
}
Ref<InputEvent> ev = physics_picking_events.front()->get();
physics_picking_events.pop_front();
Vector2 pos;
bool is_mouse = false;
Ref<InputEventMouseMotion> mm = ev;
if (mm.is_valid()) {
pos = mm->get_position();
is_mouse = true;
}
Ref<InputEventMouseButton> mb = ev;
if (mb.is_valid()) {
pos = mb->get_position();
is_mouse = true;
}
Ref<InputEventScreenDrag> sd = ev;
if (sd.is_valid()) {
pos = sd->get_position();
}
Ref<InputEventScreenTouch> st = ev;
if (st.is_valid()) {
pos = st->get_position();
}
if (ss2d) {
// Send to 2D.
uint64_t frame = get_tree()->get_frame();
PhysicsDirectSpaceState2D::ShapeResult res[64];
for (const CanvasLayer *E : canvas_layers) {
Transform2D canvas_layer_transform;
ObjectID canvas_layer_id;
if (E) {
// A descendant CanvasLayer.
canvas_layer_transform = E->get_final_transform();
canvas_layer_id = E->get_instance_id();
} else {
// This Viewport's builtin canvas.
canvas_layer_transform = get_canvas_transform();
canvas_layer_id = ObjectID();
}
Vector2 point = canvas_layer_transform.affine_inverse().xform(pos);
PhysicsDirectSpaceState2D::PointParameters point_params;
point_params.position = point;
point_params.canvas_instance_id = canvas_layer_id;
point_params.collide_with_areas = true;
point_params.pick_point = true;
int rc = ss2d->intersect_point(point_params, res, 64);
if (physics_object_picking_sort) {
struct ComparatorCollisionObjects {
bool operator()(const PhysicsDirectSpaceState2D::ShapeResult &p_a, const PhysicsDirectSpaceState2D::ShapeResult &p_b) const {
CollisionObject2D *a = Object::cast_to<CollisionObject2D>(p_a.collider);
CollisionObject2D *b = Object::cast_to<CollisionObject2D>(p_b.collider);
if (!a || !b) {
return false;
}
int za = a->get_effective_z_index();
int zb = b->get_effective_z_index();
if (za != zb) {
return zb < za;
}
return a->is_greater_than(b);
}
};
SortArray<PhysicsDirectSpaceState2D::ShapeResult, ComparatorCollisionObjects> sorter;
sorter.sort(res, rc);
}
for (int i = 0; i < rc; i++) {
if (is_input_handled()) {
break;
}
if (res[i].collider_id.is_valid() && res[i].collider) {
CollisionObject2D *co = Object::cast_to<CollisionObject2D>(res[i].collider);
if (co && co->can_process()) {
bool send_event = true;
if (is_mouse) {
HashMap<ObjectID, uint64_t>::Iterator F = physics_2d_mouseover.find(res[i].collider_id);
if (!F) {
physics_2d_mouseover.insert(res[i].collider_id, frame);
co->_mouse_enter();
} else {
F->value = frame;
// It was already hovered, so don't send the event if it's faked.
if (mm.is_valid() && mm->get_device() == InputEvent::DEVICE_ID_INTERNAL) {
send_event = false;
}
}
HashMap<Pair<ObjectID, int>, uint64_t, PairHash<ObjectID, int>>::Iterator SF = physics_2d_shape_mouseover.find(Pair(res[i].collider_id, res[i].shape));
if (!SF) {
physics_2d_shape_mouseover.insert(Pair(res[i].collider_id, res[i].shape), frame);
co->_mouse_shape_enter(res[i].shape);
} else {
SF->value = frame;
}
}
if (send_event) {
co->_input_event_call(this, ev, res[i].shape);
}
if (physics_object_picking_first_only) {
break;
}
}
}
}
}
if (is_mouse) {
_cleanup_mouseover_colliders(false, false, frame);
}
}
#ifndef _3D_DISABLED
if (physics_object_picking_first_only && is_input_handled()) {
continue;
}
CollisionObject3D *capture_object = nullptr;
if (physics_object_capture.is_valid()) {
capture_object = Object::cast_to<CollisionObject3D>(ObjectDB::get_instance(physics_object_capture));
if (!capture_object || !camera_3d || (mb.is_valid() && mb->get_button_index() == MouseButton::LEFT && !mb->is_pressed())) {
physics_object_capture = ObjectID();
} else {
last_id = physics_object_capture;
last_object = capture_object;
}
}
if (pos == last_pos) {
if (last_id.is_valid()) {
if (ObjectDB::get_instance(last_id) && last_object) {
// Good, exists.
_collision_object_3d_input_event(last_object, camera_3d, ev, result.position, result.normal, result.shape);
if (last_object->get_capture_input_on_drag() && mb.is_valid() && mb->get_button_index() == MouseButton::LEFT && mb->is_pressed()) {
physics_object_capture = last_id;
}
}
}
} else {
if (camera_3d) {
Vector3 from = camera_3d->project_ray_origin(pos);
Vector3 dir = camera_3d->project_ray_normal(pos);
real_t depth_far = camera_3d->get_far();
PhysicsDirectSpaceState3D *space = PhysicsServer3D::get_singleton()->space_get_direct_state(find_world_3d()->get_space());
if (space) {
PhysicsDirectSpaceState3D::RayParameters ray_params;
ray_params.from = from;
ray_params.to = from + dir * depth_far;
ray_params.collide_with_areas = true;
ray_params.pick_ray = true;
bool col = space->intersect_ray(ray_params, result);
ObjectID new_collider;
CollisionObject3D *co = col ? Object::cast_to<CollisionObject3D>(result.collider) : nullptr;
if (co && co->can_process()) {
new_collider = result.collider_id;
if (!capture_object) {
last_object = co;
last_id = result.collider_id;
if (co->get_capture_input_on_drag() && mb.is_valid() && mb->get_button_index() == MouseButton::LEFT && mb->is_pressed()) {
physics_object_capture = last_id;
}
}
}
if (is_mouse && new_collider != physics_object_over) {
if (physics_object_over.is_valid()) {
CollisionObject3D *previous_co = Object::cast_to<CollisionObject3D>(ObjectDB::get_instance(physics_object_over));
if (previous_co) {
previous_co->_mouse_exit();
}
}
if (new_collider.is_valid()) {
DEV_ASSERT(co);
co->_mouse_enter();
}
physics_object_over = new_collider;
}
if (capture_object) {
_collision_object_3d_input_event(capture_object, camera_3d, ev, result.position, result.normal, result.shape);
} else if (new_collider.is_valid()) {
_collision_object_3d_input_event(co, camera_3d, ev, result.position, result.normal, result.shape);
}
}
last_pos = pos;
}
}
#endif // _3D_DISABLED
}
}
RID Viewport::get_viewport_rid() const {
ERR_READ_THREAD_GUARD_V(RID());
return viewport;
}
void Viewport::update_canvas_items() {
ERR_MAIN_THREAD_GUARD;
if (!is_inside_tree()) {
return;
}
if (is_embedding_subwindows()) {
for (Viewport::SubWindow w : gui.sub_windows) {
if (w.window && !w.pending_window_update) {
w.pending_window_update = true;
callable_mp(this, &Viewport::_sub_window_update).call_deferred(w.window);
}
}
}
_update_canvas_items(this);
}
bool Viewport::_set_size(const Size2i &p_size, const Size2i &p_size_2d_override, bool p_allocated) {
Transform2D stretch_transform_new = Transform2D();
if (is_size_2d_override_stretch_enabled() && p_size_2d_override.width > 0 && p_size_2d_override.height > 0) {
Size2 scale = Size2(p_size) / Size2(p_size_2d_override);