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virtualx-engine/scene/main/canvas_layer.cpp
Rémi Verschelde 0be6d925dc Style: clang-format: Disable KeepEmptyLinesAtTheStartOfBlocks 
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.
2020-05-14 16:54:55 +02:00

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/*************************************************************************/
/* canvas_layer.cpp */
/*************************************************************************/
/* This file is part of: */
/* GODOT ENGINE */
/* https://godotengine.org */
/*************************************************************************/
/* Copyright (c) 2007-2020 Juan Linietsky, Ariel Manzur. */
/* Copyright (c) 2014-2020 Godot Engine contributors (cf. AUTHORS.md). */
/* */
/* Permission is hereby granted, free of charge, to any person obtaining */
/* a copy of this software and associated documentation files (the */
/* "Software"), to deal in the Software without restriction, including */
/* without limitation the rights to use, copy, modify, merge, publish, */
/* distribute, sublicense, and/or sell copies of the Software, and to */
/* permit persons to whom the Software is furnished to do so, subject to */
/* the following conditions: */
/* */
/* The above copyright notice and this permission notice shall be */
/* included in all copies or substantial portions of the Software. */
/* */
/* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, */
/* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF */
/* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.*/
/* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY */
/* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, */
/* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE */
/* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */
/*************************************************************************/
#include "canvas_layer.h"
#include "viewport.h"
void CanvasLayer::set_layer(int p_xform) {
layer = p_xform;
if (viewport.is_valid())
RenderingServer::get_singleton()->viewport_set_canvas_stacking(viewport, canvas, layer, get_index());
}
int CanvasLayer::get_layer() const {
return layer;
}
void CanvasLayer::set_transform(const Transform2D &p_xform) {
transform = p_xform;
locrotscale_dirty = true;
if (viewport.is_valid())
RenderingServer::get_singleton()->viewport_set_canvas_transform(viewport, canvas, transform);
}
Transform2D CanvasLayer::get_transform() const {
return transform;
}
void CanvasLayer::_update_xform() {
transform.set_rotation_and_scale(rot, scale);
transform.set_origin(ofs);
if (viewport.is_valid())
RenderingServer::get_singleton()->viewport_set_canvas_transform(viewport, canvas, transform);
}
void CanvasLayer::_update_locrotscale() {
ofs = transform.elements[2];
rot = transform.get_rotation();
scale = transform.get_scale();
locrotscale_dirty = false;
}
void CanvasLayer::set_offset(const Vector2 &p_offset) {
if (locrotscale_dirty)
_update_locrotscale();
ofs = p_offset;
_update_xform();
}
Vector2 CanvasLayer::get_offset() const {
if (locrotscale_dirty)
const_cast<CanvasLayer *>(this)->_update_locrotscale();
return ofs;
}
void CanvasLayer::set_rotation(real_t p_radians) {
if (locrotscale_dirty)
_update_locrotscale();
rot = p_radians;
_update_xform();
}
real_t CanvasLayer::get_rotation() const {
if (locrotscale_dirty)
const_cast<CanvasLayer *>(this)->_update_locrotscale();
return rot;
}
void CanvasLayer::set_rotation_degrees(real_t p_degrees) {
set_rotation(Math::deg2rad(p_degrees));
}
real_t CanvasLayer::get_rotation_degrees() const {
return Math::rad2deg(get_rotation());
}
void CanvasLayer::set_scale(const Vector2 &p_scale) {
if (locrotscale_dirty)
_update_locrotscale();
scale = p_scale;
_update_xform();
}
Vector2 CanvasLayer::get_scale() const {
if (locrotscale_dirty)
const_cast<CanvasLayer *>(this)->_update_locrotscale();
return scale;
}
void CanvasLayer::_notification(int p_what) {
switch (p_what) {
case NOTIFICATION_ENTER_TREE: {
if (custom_viewport && ObjectDB::get_instance(custom_viewport_id)) {
vp = custom_viewport;
} else {
vp = Node::get_viewport();
}
ERR_FAIL_COND(!vp);
vp->_canvas_layer_add(this);
viewport = vp->get_viewport_rid();
RenderingServer::get_singleton()->viewport_attach_canvas(viewport, canvas);
RenderingServer::get_singleton()->viewport_set_canvas_stacking(viewport, canvas, layer, get_index());
RenderingServer::get_singleton()->viewport_set_canvas_transform(viewport, canvas, transform);
_update_follow_viewport();
} break;
case NOTIFICATION_EXIT_TREE: {
vp->_canvas_layer_remove(this);
RenderingServer::get_singleton()->viewport_remove_canvas(viewport, canvas);
viewport = RID();
_update_follow_viewport(false);
} break;
case NOTIFICATION_MOVED_IN_PARENT: {
if (is_inside_tree())
RenderingServer::get_singleton()->viewport_set_canvas_stacking(viewport, canvas, layer, get_index());
} break;
}
}
Size2 CanvasLayer::get_viewport_size() const {
if (!is_inside_tree())
return Size2(1, 1);
Rect2 r = vp->get_visible_rect();
return r.size;
}
RID CanvasLayer::get_viewport() const {
return viewport;
}
void CanvasLayer::set_custom_viewport(Node *p_viewport) {
ERR_FAIL_NULL(p_viewport);
if (is_inside_tree()) {
vp->_canvas_layer_remove(this);
RenderingServer::get_singleton()->viewport_remove_canvas(viewport, canvas);
viewport = RID();
}
custom_viewport = Object::cast_to<Viewport>(p_viewport);
if (custom_viewport) {
custom_viewport_id = custom_viewport->get_instance_id();
} else {
custom_viewport_id = ObjectID();
}
if (is_inside_tree()) {
if (custom_viewport)
vp = custom_viewport;
else
vp = Node::get_viewport();
vp->_canvas_layer_add(this);
viewport = vp->get_viewport_rid();
RenderingServer::get_singleton()->viewport_attach_canvas(viewport, canvas);
RenderingServer::get_singleton()->viewport_set_canvas_stacking(viewport, canvas, layer, get_index());
RenderingServer::get_singleton()->viewport_set_canvas_transform(viewport, canvas, transform);
}
}
Node *CanvasLayer::get_custom_viewport() const {
return custom_viewport;
}
void CanvasLayer::reset_sort_index() {
sort_index = 0;
}
int CanvasLayer::get_sort_index() {
return sort_index++;
}
RID CanvasLayer::get_canvas() const {
return canvas;
}
void CanvasLayer::set_follow_viewport(bool p_enable) {
if (follow_viewport == p_enable) {
return;
}
follow_viewport = p_enable;
_update_follow_viewport();
}
bool CanvasLayer::is_following_viewport() const {
return follow_viewport;
}
void CanvasLayer::set_follow_viewport_scale(float p_ratio) {
follow_viewport_scale = p_ratio;
_update_follow_viewport();
}
float CanvasLayer::get_follow_viewport_scale() const {
return follow_viewport_scale;
}
void CanvasLayer::_update_follow_viewport(bool p_force_exit) {
if (!is_inside_tree()) {
return;
}
if (p_force_exit || !follow_viewport) {
RS::get_singleton()->canvas_set_parent(canvas, RID(), 1.0);
} else {
RS::get_singleton()->canvas_set_parent(canvas, vp->get_world_2d()->get_canvas(), follow_viewport_scale);
}
}
void CanvasLayer::_bind_methods() {
ClassDB::bind_method(D_METHOD("set_layer", "layer"), &CanvasLayer::set_layer);
ClassDB::bind_method(D_METHOD("get_layer"), &CanvasLayer::get_layer);
ClassDB::bind_method(D_METHOD("set_transform", "transform"), &CanvasLayer::set_transform);
ClassDB::bind_method(D_METHOD("get_transform"), &CanvasLayer::get_transform);
ClassDB::bind_method(D_METHOD("set_offset", "offset"), &CanvasLayer::set_offset);
ClassDB::bind_method(D_METHOD("get_offset"), &CanvasLayer::get_offset);
ClassDB::bind_method(D_METHOD("set_rotation", "radians"), &CanvasLayer::set_rotation);
ClassDB::bind_method(D_METHOD("get_rotation"), &CanvasLayer::get_rotation);
ClassDB::bind_method(D_METHOD("set_rotation_degrees", "degrees"), &CanvasLayer::set_rotation_degrees);
ClassDB::bind_method(D_METHOD("get_rotation_degrees"), &CanvasLayer::get_rotation_degrees);
ClassDB::bind_method(D_METHOD("set_scale", "scale"), &CanvasLayer::set_scale);
ClassDB::bind_method(D_METHOD("get_scale"), &CanvasLayer::get_scale);
ClassDB::bind_method(D_METHOD("set_follow_viewport", "enable"), &CanvasLayer::set_follow_viewport);
ClassDB::bind_method(D_METHOD("is_following_viewport"), &CanvasLayer::is_following_viewport);
ClassDB::bind_method(D_METHOD("set_follow_viewport_scale", "scale"), &CanvasLayer::set_follow_viewport_scale);
ClassDB::bind_method(D_METHOD("get_follow_viewport_scale"), &CanvasLayer::get_follow_viewport_scale);
ClassDB::bind_method(D_METHOD("set_custom_viewport", "viewport"), &CanvasLayer::set_custom_viewport);
ClassDB::bind_method(D_METHOD("get_custom_viewport"), &CanvasLayer::get_custom_viewport);
ClassDB::bind_method(D_METHOD("get_canvas"), &CanvasLayer::get_canvas);
ADD_GROUP("Layer", "");
ADD_PROPERTY(PropertyInfo(Variant::INT, "layer", PROPERTY_HINT_RANGE, "-128,128,1"), "set_layer", "get_layer");
ADD_GROUP("Transform", "");
ADD_PROPERTY(PropertyInfo(Variant::VECTOR2, "offset"), "set_offset", "get_offset");
ADD_PROPERTY(PropertyInfo(Variant::FLOAT, "rotation_degrees", PROPERTY_HINT_RANGE, "-1080,1080,0.1,or_lesser,or_greater", PROPERTY_USAGE_EDITOR), "set_rotation_degrees", "get_rotation_degrees");
ADD_PROPERTY(PropertyInfo(Variant::FLOAT, "rotation", PROPERTY_HINT_NONE, "", PROPERTY_USAGE_NOEDITOR), "set_rotation", "get_rotation");
ADD_PROPERTY(PropertyInfo(Variant::VECTOR2, "scale"), "set_scale", "get_scale");
ADD_PROPERTY(PropertyInfo(Variant::TRANSFORM2D, "transform"), "set_transform", "get_transform");
ADD_GROUP("", "");
ADD_PROPERTY(PropertyInfo(Variant::OBJECT, "custom_viewport", PROPERTY_HINT_RESOURCE_TYPE, "Viewport", 0), "set_custom_viewport", "get_custom_viewport");
ADD_GROUP("Follow Viewport", "follow_viewport");
ADD_PROPERTY(PropertyInfo(Variant::BOOL, "follow_viewport_enable"), "set_follow_viewport", "is_following_viewport");
ADD_PROPERTY(PropertyInfo(Variant::FLOAT, "follow_viewport_scale", PROPERTY_HINT_RANGE, "0.001,1000,0.001,or_greater,or_lesser"), "set_follow_viewport_scale", "get_follow_viewport_scale");
}
CanvasLayer::CanvasLayer() {
vp = nullptr;
scale = Vector2(1, 1);
rot = 0;
locrotscale_dirty = false;
layer = 1;
canvas = RS::get_singleton()->canvas_create();
custom_viewport = nullptr;
sort_index = 0;
follow_viewport = false;
follow_viewport_scale = 1.0;
}
CanvasLayer::~CanvasLayer() {
RS::get_singleton()->free(canvas);
}
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