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canvas_item.cpp
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canvas_item.cpp
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/**************************************************************************/
/* canvas_item.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 "canvas_item.h"
#include "core/object/message_queue.h"
#include "scene/2d/canvas_group.h"
#include "scene/main/canvas_layer.h"
#include "scene/main/window.h"
#include "scene/resources/canvas_item_material.h"
#include "scene/resources/font.h"
#include "scene/resources/multimesh.h"
#include "scene/resources/style_box.h"
#include "scene/resources/world_2d.h"
#include "scene/scene_string_names.h"
#ifdef TOOLS_ENABLED
bool CanvasItem::_edit_is_selected_on_click(const Point2 &p_point, double p_tolerance) const {
if (_edit_use_rect()) {
return _edit_get_rect().has_point(p_point);
} else {
return p_point.length() < p_tolerance;
}
}
Transform2D CanvasItem::_edit_get_transform() const {
return Transform2D(_edit_get_rotation(), _edit_get_position() + _edit_get_pivot());
}
#endif
bool CanvasItem::is_visible_in_tree() const {
return visible && parent_visible_in_tree;
}
void CanvasItem::_propagate_visibility_changed(bool p_parent_visible_in_tree) {
parent_visible_in_tree = p_parent_visible_in_tree;
if (!visible) {
return;
}
_handle_visibility_change(p_parent_visible_in_tree);
}
void CanvasItem::set_visible(bool p_visible) {
if (visible == p_visible) {
return;
}
visible = p_visible;
if (!parent_visible_in_tree) {
notification(NOTIFICATION_VISIBILITY_CHANGED);
return;
}
_handle_visibility_change(p_visible);
}
void CanvasItem::_handle_visibility_change(bool p_visible) {
RenderingServer::get_singleton()->canvas_item_set_visible(canvas_item, p_visible);
notification(NOTIFICATION_VISIBILITY_CHANGED);
if (p_visible) {
queue_redraw();
} else {
emit_signal(SceneStringNames::get_singleton()->hidden);
}
_block();
for (int i = 0; i < get_child_count(); i++) {
CanvasItem *c = Object::cast_to<CanvasItem>(get_child(i));
if (c) { // Should the top_levels stop propagation? I think so, but...
c->_propagate_visibility_changed(p_visible);
}
}
_unblock();
}
void CanvasItem::show() {
set_visible(true);
}
void CanvasItem::hide() {
set_visible(false);
}
bool CanvasItem::is_visible() const {
return visible;
}
CanvasItem *CanvasItem::current_item_drawn = nullptr;
CanvasItem *CanvasItem::get_current_item_drawn() {
return current_item_drawn;
}
void CanvasItem::_redraw_callback() {
if (!is_inside_tree()) {
pending_update = false;
return;
}
RenderingServer::get_singleton()->canvas_item_clear(get_canvas_item());
//todo updating = true - only allow drawing here
if (is_visible_in_tree()) {
drawing = true;
current_item_drawn = this;
notification(NOTIFICATION_DRAW);
emit_signal(SceneStringNames::get_singleton()->draw);
GDVIRTUAL_CALL(_draw);
current_item_drawn = nullptr;
drawing = false;
}
//todo updating = false
pending_update = false; // don't change to false until finished drawing (avoid recursive update)
}
Transform2D CanvasItem::get_global_transform_with_canvas() const {
if (canvas_layer) {
return canvas_layer->get_final_transform() * get_global_transform();
} else if (is_inside_tree()) {
return get_viewport()->get_canvas_transform() * get_global_transform();
} else {
return get_global_transform();
}
}
Transform2D CanvasItem::get_screen_transform() const {
ERR_FAIL_COND_V(!is_inside_tree(), Transform2D());
return get_viewport()->get_popup_base_transform() * get_global_transform_with_canvas();
}
Transform2D CanvasItem::get_global_transform() const {
if (global_invalid) {
const CanvasItem *pi = get_parent_item();
if (pi) {
global_transform = pi->get_global_transform() * get_transform();
} else {
global_transform = get_transform();
}
global_invalid = false;
}
return global_transform;
}
void CanvasItem::_top_level_raise_self() {
if (!is_inside_tree()) {
return;
}
if (canvas_layer) {
RenderingServer::get_singleton()->canvas_item_set_draw_index(canvas_item, canvas_layer->get_sort_index());
} else {
RenderingServer::get_singleton()->canvas_item_set_draw_index(canvas_item, get_viewport()->gui_get_canvas_sort_index());
}
}
void CanvasItem::_enter_canvas() {
// Resolves to nullptr if the node is top_level.
CanvasItem *parent_item = get_parent_item();
if (parent_item) {
canvas_layer = parent_item->canvas_layer;
RenderingServer::get_singleton()->canvas_item_set_parent(canvas_item, parent_item->get_canvas_item());
RenderingServer::get_singleton()->canvas_item_set_draw_index(canvas_item, get_index());
RenderingServer::get_singleton()->canvas_item_set_visibility_layer(canvas_item, visibility_layer);
} else {
Node *n = this;
canvas_layer = nullptr;
while (n) {
canvas_layer = Object::cast_to<CanvasLayer>(n);
if (canvas_layer) {
break;
}
if (Object::cast_to<Viewport>(n)) {
break;
}
n = n->get_parent();
}
RID canvas;
if (canvas_layer) {
canvas = canvas_layer->get_canvas();
} else {
canvas = get_viewport()->find_world_2d()->get_canvas();
}
RenderingServer::get_singleton()->canvas_item_set_parent(canvas_item, canvas);
RenderingServer::get_singleton()->canvas_item_set_visibility_layer(canvas_item, visibility_layer);
canvas_group = "root_canvas" + itos(canvas.get_id());
add_to_group(canvas_group);
if (canvas_layer) {
canvas_layer->reset_sort_index();
} else {
get_viewport()->gui_reset_canvas_sort_index();
}
get_tree()->call_group_flags(SceneTree::GROUP_CALL_UNIQUE | SceneTree::GROUP_CALL_DEFERRED, canvas_group, SNAME("_top_level_raise_self"));
}
pending_update = false;
queue_redraw();
notification(NOTIFICATION_ENTER_CANVAS);
}
void CanvasItem::_exit_canvas() {
notification(NOTIFICATION_EXIT_CANVAS, true); //reverse the notification
RenderingServer::get_singleton()->canvas_item_set_parent(canvas_item, RID());
canvas_layer = nullptr;
if (canvas_group != StringName()) {
remove_from_group(canvas_group);
canvas_group = StringName();
}
}
void CanvasItem::_notification(int p_what) {
switch (p_what) {
case NOTIFICATION_ENTER_TREE: {
ERR_FAIL_COND(!is_inside_tree());
Node *parent = get_parent();
if (parent) {
CanvasItem *ci = Object::cast_to<CanvasItem>(parent);
if (ci) {
parent_visible_in_tree = ci->is_visible_in_tree();
C = ci->children_items.push_back(this);
} else {
CanvasLayer *cl = Object::cast_to<CanvasLayer>(parent);
if (cl) {
parent_visible_in_tree = cl->is_visible();
} else {
// Look for a window.
Viewport *viewport = nullptr;
while (parent) {
viewport = Object::cast_to<Viewport>(parent);
if (viewport) {
break;
}
parent = parent->get_parent();
}
ERR_FAIL_COND(!viewport);
window = Object::cast_to<Window>(viewport);
if (window) {
window->connect(SceneStringNames::get_singleton()->visibility_changed, callable_mp(this, &CanvasItem::_window_visibility_changed));
parent_visible_in_tree = window->is_visible();
} else {
parent_visible_in_tree = true;
}
}
}
}
_enter_canvas();
RenderingServer::get_singleton()->canvas_item_set_visible(canvas_item, is_visible_in_tree()); // The visibility of the parent may change.
if (is_visible_in_tree()) {
notification(NOTIFICATION_VISIBILITY_CHANGED); // Considered invisible until entered.
}
_update_texture_filter_changed(false);
_update_texture_repeat_changed(false);
if (!block_transform_notify && !xform_change.in_list()) {
get_tree()->xform_change_list.add(&xform_change);
}
} break;
case NOTIFICATION_MOVED_IN_PARENT: {
if (!is_inside_tree()) {
break;
}
if (canvas_group != StringName()) {
get_tree()->call_group_flags(SceneTree::GROUP_CALL_UNIQUE | SceneTree::GROUP_CALL_DEFERRED, canvas_group, "_top_level_raise_self");
} else {
ERR_FAIL_COND_MSG(!get_parent_item(), "Moved child is in incorrect state (no canvas group, no canvas item parent).");
RenderingServer::get_singleton()->canvas_item_set_draw_index(canvas_item, get_index());
}
} break;
case NOTIFICATION_EXIT_TREE: {
if (xform_change.in_list()) {
get_tree()->xform_change_list.remove(&xform_change);
}
_exit_canvas();
if (C) {
Object::cast_to<CanvasItem>(get_parent())->children_items.erase(C);
C = nullptr;
}
if (window) {
window->disconnect(SceneStringNames::get_singleton()->visibility_changed, callable_mp(this, &CanvasItem::_window_visibility_changed));
window = nullptr;
}
global_invalid = true;
parent_visible_in_tree = false;
} break;
case NOTIFICATION_VISIBILITY_CHANGED: {
emit_signal(SceneStringNames::get_singleton()->visibility_changed);
} break;
}
}
void CanvasItem::_window_visibility_changed() {
if (visible) {
_propagate_visibility_changed(window->is_visible());
}
}
void CanvasItem::queue_redraw() {
if (!is_inside_tree()) {
return;
}
if (pending_update) {
return;
}
pending_update = true;
MessageQueue::get_singleton()->push_callable(callable_mp(this, &CanvasItem::_redraw_callback));
}
void CanvasItem::move_to_front() {
if (!get_parent()) {
return;
}
get_parent()->move_child(this, -1);
}
void CanvasItem::set_modulate(const Color &p_modulate) {
if (modulate == p_modulate) {
return;
}
modulate = p_modulate;
RenderingServer::get_singleton()->canvas_item_set_modulate(canvas_item, modulate);
}
Color CanvasItem::get_modulate() const {
return modulate;
}
Color CanvasItem::get_modulate_in_tree() const {
Color final_modulate = modulate;
CanvasItem *parent_item = get_parent_item();
while (parent_item) {
final_modulate *= parent_item->get_modulate();
parent_item = parent_item->get_parent_item();
}
return final_modulate;
}
void CanvasItem::set_as_top_level(bool p_top_level) {
if (top_level == p_top_level) {
return;
}
if (!is_inside_tree()) {
top_level = p_top_level;
return;
}
_exit_canvas();
top_level = p_top_level;
_top_level_changed();
_enter_canvas();
_notify_transform();
}
void CanvasItem::_top_level_changed() {
// Inform children that top_level status has changed on a parent.
int children = get_child_count();
for (int i = 0; i < children; i++) {
CanvasItem *child = Object::cast_to<CanvasItem>(get_child(i));
if (child) {
child->_top_level_changed_on_parent();
}
}
}
void CanvasItem::_top_level_changed_on_parent() {
// Inform children that top_level status has changed on a parent.
_top_level_changed();
}
bool CanvasItem::is_set_as_top_level() const {
return top_level;
}
CanvasItem *CanvasItem::get_parent_item() const {
if (top_level) {
return nullptr;
}
return Object::cast_to<CanvasItem>(get_parent());
}
void CanvasItem::set_self_modulate(const Color &p_self_modulate) {
if (self_modulate == p_self_modulate) {
return;
}
self_modulate = p_self_modulate;
RenderingServer::get_singleton()->canvas_item_set_self_modulate(canvas_item, self_modulate);
}
Color CanvasItem::get_self_modulate() const {
return self_modulate;
}
void CanvasItem::set_light_mask(int p_light_mask) {
if (light_mask == p_light_mask) {
return;
}
light_mask = p_light_mask;
RS::get_singleton()->canvas_item_set_light_mask(canvas_item, p_light_mask);
}
int CanvasItem::get_light_mask() const {
return light_mask;
}
void CanvasItem::item_rect_changed(bool p_size_changed) {
if (p_size_changed) {
queue_redraw();
}
emit_signal(SceneStringNames::get_singleton()->item_rect_changed);
}
void CanvasItem::set_z_index(int p_z) {
ERR_FAIL_COND(p_z < RS::CANVAS_ITEM_Z_MIN);
ERR_FAIL_COND(p_z > RS::CANVAS_ITEM_Z_MAX);
z_index = p_z;
RS::get_singleton()->canvas_item_set_z_index(canvas_item, z_index);
update_configuration_warnings();
}
void CanvasItem::set_z_as_relative(bool p_enabled) {
if (z_relative == p_enabled) {
return;
}
z_relative = p_enabled;
RS::get_singleton()->canvas_item_set_z_as_relative_to_parent(canvas_item, p_enabled);
}
bool CanvasItem::is_z_relative() const {
return z_relative;
}
int CanvasItem::get_z_index() const {
return z_index;
}
int CanvasItem::get_effective_z_index() const {
int effective_z_index = z_index;
if (is_z_relative()) {
CanvasItem *p = get_parent_item();
if (p) {
effective_z_index += p->get_effective_z_index();
}
}
return effective_z_index;
}
void CanvasItem::set_y_sort_enabled(bool p_enabled) {
y_sort_enabled = p_enabled;
RS::get_singleton()->canvas_item_set_sort_children_by_y(canvas_item, y_sort_enabled);
}
bool CanvasItem::is_y_sort_enabled() const {
return y_sort_enabled;
}
void CanvasItem::draw_dashed_line(const Point2 &p_from, const Point2 &p_to, const Color &p_color, real_t p_width, real_t p_dash, bool p_aligned) {
ERR_FAIL_COND_MSG(!drawing, "Drawing is only allowed inside NOTIFICATION_DRAW, _draw() function or 'draw' signal.");
ERR_FAIL_COND(p_dash <= 0.0);
float length = (p_to - p_from).length();
Vector2 step = p_dash * (p_to - p_from).normalized();
if (length < p_dash || step == Vector2()) {
RenderingServer::get_singleton()->canvas_item_add_line(canvas_item, p_from, p_to, p_color, p_width);
return;
}
int steps = (p_aligned) ? Math::ceil(length / p_dash) : Math::floor(length / p_dash);
if (steps % 2 == 0) {
steps--;
}
Point2 off = p_from;
if (p_aligned) {
off += (p_to - p_from).normalized() * (length - steps * p_dash) / 2.0;
}
Vector<Vector2> points;
points.resize(steps + 1);
for (int i = 0; i < steps; i += 2) {
points.write[i] = (i == 0) ? p_from : off;
points.write[i + 1] = (p_aligned && i == steps - 1) ? p_to : (off + step);
off += step * 2;
}
Vector<Color> colors = { p_color };
RenderingServer::get_singleton()->canvas_item_add_multiline(canvas_item, points, colors, p_width);
}
void CanvasItem::draw_line(const Point2 &p_from, const Point2 &p_to, const Color &p_color, real_t p_width, bool p_antialiased) {
ERR_FAIL_COND_MSG(!drawing, "Drawing is only allowed inside NOTIFICATION_DRAW, _draw() function or 'draw' signal.");
RenderingServer::get_singleton()->canvas_item_add_line(canvas_item, p_from, p_to, p_color, p_width, p_antialiased);
}
void CanvasItem::draw_polyline(const Vector<Point2> &p_points, const Color &p_color, real_t p_width, bool p_antialiased) {
ERR_FAIL_COND_MSG(!drawing, "Drawing is only allowed inside NOTIFICATION_DRAW, _draw() function or 'draw' signal.");
Vector<Color> colors;
colors.push_back(p_color);
RenderingServer::get_singleton()->canvas_item_add_polyline(canvas_item, p_points, colors, p_width, p_antialiased);
}
void CanvasItem::draw_polyline_colors(const Vector<Point2> &p_points, const Vector<Color> &p_colors, real_t p_width, bool p_antialiased) {
ERR_FAIL_COND_MSG(!drawing, "Drawing is only allowed inside NOTIFICATION_DRAW, _draw() function or 'draw' signal.");
RenderingServer::get_singleton()->canvas_item_add_polyline(canvas_item, p_points, p_colors, p_width, p_antialiased);
}
void CanvasItem::draw_arc(const Vector2 &p_center, real_t p_radius, real_t p_start_angle, real_t p_end_angle, int p_point_count, const Color &p_color, real_t p_width, bool p_antialiased) {
Vector<Point2> points;
points.resize(p_point_count);
Point2 *points_ptr = points.ptrw();
// Clamp angle difference to full circle so arc won't overlap itself.
const real_t delta_angle = CLAMP(p_end_angle - p_start_angle, -Math_TAU, Math_TAU);
for (int i = 0; i < p_point_count; i++) {
real_t theta = (i / (p_point_count - 1.0f)) * delta_angle + p_start_angle;
points_ptr[i] = p_center + Vector2(Math::cos(theta), Math::sin(theta)) * p_radius;
}
draw_polyline(points, p_color, p_width, p_antialiased);
}
void CanvasItem::draw_multiline(const Vector<Point2> &p_points, const Color &p_color, real_t p_width) {
ERR_FAIL_COND_MSG(!drawing, "Drawing is only allowed inside NOTIFICATION_DRAW, _draw() function or 'draw' signal.");
Vector<Color> colors;
colors.push_back(p_color);
RenderingServer::get_singleton()->canvas_item_add_multiline(canvas_item, p_points, colors, p_width);
}
void CanvasItem::draw_multiline_colors(const Vector<Point2> &p_points, const Vector<Color> &p_colors, real_t p_width) {
ERR_FAIL_COND_MSG(!drawing, "Drawing is only allowed inside NOTIFICATION_DRAW, _draw() function or 'draw' signal.");
RenderingServer::get_singleton()->canvas_item_add_multiline(canvas_item, p_points, p_colors, p_width);
}
void CanvasItem::draw_rect(const Rect2 &p_rect, const Color &p_color, bool p_filled, real_t p_width) {
ERR_FAIL_COND_MSG(!drawing, "Drawing is only allowed inside NOTIFICATION_DRAW, _draw() function or 'draw' signal.");
Rect2 rect = p_rect.abs();
if (p_filled) {
if (p_width != -1.0) {
WARN_PRINT("The draw_rect() \"width\" argument has no effect when \"filled\" is \"true\".");
}
RenderingServer::get_singleton()->canvas_item_add_rect(canvas_item, rect, p_color);
} else if (p_width >= rect.size.width || p_width >= rect.size.height) {
RenderingServer::get_singleton()->canvas_item_add_rect(canvas_item, rect.grow(0.5f * p_width), p_color);
} else {
Vector<Vector2> points;
points.resize(5);
points.write[0] = rect.position;
points.write[1] = rect.position + Vector2(rect.size.x, 0);
points.write[2] = rect.position + rect.size;
points.write[3] = rect.position + Vector2(0, rect.size.y);
points.write[4] = rect.position;
Vector<Color> colors = { p_color };
RenderingServer::get_singleton()->canvas_item_add_polyline(canvas_item, points, colors, p_width);
}
}
void CanvasItem::draw_circle(const Point2 &p_pos, real_t p_radius, const Color &p_color) {
ERR_FAIL_COND_MSG(!drawing, "Drawing is only allowed inside NOTIFICATION_DRAW, _draw() function or 'draw' signal.");
RenderingServer::get_singleton()->canvas_item_add_circle(canvas_item, p_pos, p_radius, p_color);
}
void CanvasItem::draw_texture(const Ref<Texture2D> &p_texture, const Point2 &p_pos, const Color &p_modulate) {
ERR_FAIL_COND_MSG(!drawing, "Drawing is only allowed inside NOTIFICATION_DRAW, _draw() function or 'draw' signal.");
ERR_FAIL_COND(p_texture.is_null());
p_texture->draw(canvas_item, p_pos, p_modulate, false);
}
void CanvasItem::draw_texture_rect(const Ref<Texture2D> &p_texture, const Rect2 &p_rect, bool p_tile, const Color &p_modulate, bool p_transpose) {
ERR_FAIL_COND_MSG(!drawing, "Drawing is only allowed inside NOTIFICATION_DRAW, _draw() function or 'draw' signal.");
ERR_FAIL_COND(p_texture.is_null());
p_texture->draw_rect(canvas_item, p_rect, p_tile, p_modulate, p_transpose);
}
void CanvasItem::draw_texture_rect_region(const Ref<Texture2D> &p_texture, const Rect2 &p_rect, const Rect2 &p_src_rect, const Color &p_modulate, bool p_transpose, bool p_clip_uv) {
ERR_FAIL_COND_MSG(!drawing, "Drawing is only allowed inside NOTIFICATION_DRAW, _draw() function or 'draw' signal.");
ERR_FAIL_COND(p_texture.is_null());
p_texture->draw_rect_region(canvas_item, p_rect, p_src_rect, p_modulate, p_transpose, p_clip_uv);
}
void CanvasItem::draw_msdf_texture_rect_region(const Ref<Texture2D> &p_texture, const Rect2 &p_rect, const Rect2 &p_src_rect, const Color &p_modulate, double p_outline, double p_pixel_range, double p_scale) {
ERR_FAIL_COND_MSG(!drawing, "Drawing is only allowed inside NOTIFICATION_DRAW, _draw() function or 'draw' signal.");
ERR_FAIL_COND(p_texture.is_null());
RenderingServer::get_singleton()->canvas_item_add_msdf_texture_rect_region(canvas_item, p_rect, p_texture->get_rid(), p_src_rect, p_modulate, p_outline, p_pixel_range, p_scale);
}
void CanvasItem::draw_lcd_texture_rect_region(const Ref<Texture2D> &p_texture, const Rect2 &p_rect, const Rect2 &p_src_rect, const Color &p_modulate) {
ERR_FAIL_COND_MSG(!drawing, "Drawing is only allowed inside NOTIFICATION_DRAW, _draw() function or 'draw' signal.");
ERR_FAIL_COND(p_texture.is_null());
RenderingServer::get_singleton()->canvas_item_add_lcd_texture_rect_region(canvas_item, p_rect, p_texture->get_rid(), p_src_rect, p_modulate);
}
void CanvasItem::draw_style_box(const Ref<StyleBox> &p_style_box, const Rect2 &p_rect) {
ERR_FAIL_COND_MSG(!drawing, "Drawing is only allowed inside NOTIFICATION_DRAW, _draw() function or 'draw' signal.");
ERR_FAIL_COND(p_style_box.is_null());
p_style_box->draw(canvas_item, p_rect);
}
void CanvasItem::draw_primitive(const Vector<Point2> &p_points, const Vector<Color> &p_colors, const Vector<Point2> &p_uvs, Ref<Texture2D> p_texture) {
ERR_FAIL_COND_MSG(!drawing, "Drawing is only allowed inside NOTIFICATION_DRAW, _draw() function or 'draw' signal.");
RID rid = p_texture.is_valid() ? p_texture->get_rid() : RID();
RenderingServer::get_singleton()->canvas_item_add_primitive(canvas_item, p_points, p_colors, p_uvs, rid);
}
void CanvasItem::draw_set_transform(const Point2 &p_offset, real_t p_rot, const Size2 &p_scale) {
ERR_FAIL_COND_MSG(!drawing, "Drawing is only allowed inside NOTIFICATION_DRAW, _draw() function or 'draw' signal.");
Transform2D xform(p_rot, p_offset);
xform.scale_basis(p_scale);
RenderingServer::get_singleton()->canvas_item_add_set_transform(canvas_item, xform);
}
void CanvasItem::draw_set_transform_matrix(const Transform2D &p_matrix) {
ERR_FAIL_COND_MSG(!drawing, "Drawing is only allowed inside NOTIFICATION_DRAW, _draw() function or 'draw' signal.");
RenderingServer::get_singleton()->canvas_item_add_set_transform(canvas_item, p_matrix);
}
void CanvasItem::draw_animation_slice(double p_animation_length, double p_slice_begin, double p_slice_end, double p_offset) {
ERR_FAIL_COND_MSG(!drawing, "Drawing is only allowed inside NOTIFICATION_DRAW, _draw() function or 'draw' signal.");
RenderingServer::get_singleton()->canvas_item_add_animation_slice(canvas_item, p_animation_length, p_slice_begin, p_slice_end, p_offset);
}
void CanvasItem::draw_end_animation() {
ERR_FAIL_COND_MSG(!drawing, "Drawing is only allowed inside NOTIFICATION_DRAW, _draw() function or 'draw' signal.");
RenderingServer::get_singleton()->canvas_item_add_animation_slice(canvas_item, 1, 0, 2, 0);
}
void CanvasItem::draw_polygon(const Vector<Point2> &p_points, const Vector<Color> &p_colors, const Vector<Point2> &p_uvs, Ref<Texture2D> p_texture) {
ERR_FAIL_COND_MSG(!drawing, "Drawing is only allowed inside NOTIFICATION_DRAW, _draw() function or 'draw' signal.");
RID rid = p_texture.is_valid() ? p_texture->get_rid() : RID();
RenderingServer::get_singleton()->canvas_item_add_polygon(canvas_item, p_points, p_colors, p_uvs, rid);
}
void CanvasItem::draw_colored_polygon(const Vector<Point2> &p_points, const Color &p_color, const Vector<Point2> &p_uvs, Ref<Texture2D> p_texture) {
ERR_FAIL_COND_MSG(!drawing, "Drawing is only allowed inside NOTIFICATION_DRAW, _draw() function or 'draw' signal.");
Vector<Color> colors;
colors.push_back(p_color);
RID rid = p_texture.is_valid() ? p_texture->get_rid() : RID();
RenderingServer::get_singleton()->canvas_item_add_polygon(canvas_item, p_points, colors, p_uvs, rid);
}
void CanvasItem::draw_mesh(const Ref<Mesh> &p_mesh, const Ref<Texture2D> &p_texture, const Transform2D &p_transform, const Color &p_modulate) {
ERR_FAIL_COND(p_mesh.is_null());
RID texture_rid = p_texture.is_valid() ? p_texture->get_rid() : RID();
RenderingServer::get_singleton()->canvas_item_add_mesh(canvas_item, p_mesh->get_rid(), p_transform, p_modulate, texture_rid);
}
void CanvasItem::draw_multimesh(const Ref<MultiMesh> &p_multimesh, const Ref<Texture2D> &p_texture) {
ERR_FAIL_COND(p_multimesh.is_null());
RID texture_rid = p_texture.is_valid() ? p_texture->get_rid() : RID();
RenderingServer::get_singleton()->canvas_item_add_multimesh(canvas_item, p_multimesh->get_rid(), texture_rid);
}
void CanvasItem::draw_string(const Ref<Font> &p_font, const Point2 &p_pos, const String &p_text, HorizontalAlignment p_alignment, float p_width, int p_font_size, const Color &p_modulate, BitField<TextServer::JustificationFlag> p_jst_flags, TextServer::Direction p_direction, TextServer::Orientation p_orientation) const {
ERR_FAIL_COND_MSG(!drawing, "Drawing is only allowed inside NOTIFICATION_DRAW, _draw() function or 'draw' signal.");
ERR_FAIL_COND(p_font.is_null());
p_font->draw_string(canvas_item, p_pos, p_text, p_alignment, p_width, p_font_size, p_modulate, p_jst_flags, p_direction, p_orientation);
}
void CanvasItem::draw_multiline_string(const Ref<Font> &p_font, const Point2 &p_pos, const String &p_text, HorizontalAlignment p_alignment, float p_width, int p_font_size, int p_max_lines, const Color &p_modulate, BitField<TextServer::LineBreakFlag> p_brk_flags, BitField<TextServer::JustificationFlag> p_jst_flags, TextServer::Direction p_direction, TextServer::Orientation p_orientation) const {
ERR_FAIL_COND_MSG(!drawing, "Drawing is only allowed inside NOTIFICATION_DRAW, _draw() function or 'draw' signal.");
ERR_FAIL_COND(p_font.is_null());
p_font->draw_multiline_string(canvas_item, p_pos, p_text, p_alignment, p_width, p_font_size, p_max_lines, p_modulate, p_brk_flags, p_jst_flags, p_direction, p_orientation);
}
void CanvasItem::draw_string_outline(const Ref<Font> &p_font, const Point2 &p_pos, const String &p_text, HorizontalAlignment p_alignment, float p_width, int p_font_size, int p_size, const Color &p_modulate, BitField<TextServer::JustificationFlag> p_jst_flags, TextServer::Direction p_direction, TextServer::Orientation p_orientation) const {
ERR_FAIL_COND_MSG(!drawing, "Drawing is only allowed inside NOTIFICATION_DRAW, _draw() function or 'draw' signal.");
ERR_FAIL_COND(p_font.is_null());
p_font->draw_string_outline(canvas_item, p_pos, p_text, p_alignment, p_width, p_font_size, p_size, p_modulate, p_jst_flags, p_direction, p_orientation);
}
void CanvasItem::draw_multiline_string_outline(const Ref<Font> &p_font, const Point2 &p_pos, const String &p_text, HorizontalAlignment p_alignment, float p_width, int p_font_size, int p_max_lines, int p_size, const Color &p_modulate, BitField<TextServer::LineBreakFlag> p_brk_flags, BitField<TextServer::JustificationFlag> p_jst_flags, TextServer::Direction p_direction, TextServer::Orientation p_orientation) const {
ERR_FAIL_COND_MSG(!drawing, "Drawing is only allowed inside NOTIFICATION_DRAW, _draw() function or 'draw' signal.");
ERR_FAIL_COND(p_font.is_null());
p_font->draw_multiline_string_outline(canvas_item, p_pos, p_text, p_alignment, p_width, p_font_size, p_max_lines, p_size, p_modulate, p_brk_flags, p_jst_flags, p_direction, p_orientation);
}
void CanvasItem::draw_char(const Ref<Font> &p_font, const Point2 &p_pos, const String &p_char, int p_font_size, const Color &p_modulate) const {
ERR_FAIL_COND_MSG(!drawing, "Drawing is only allowed inside NOTIFICATION_DRAW, _draw() function or 'draw' signal.");
ERR_FAIL_COND(p_char.length() != 1);
ERR_FAIL_COND(p_font.is_null());
p_font->draw_char(canvas_item, p_pos, p_char[0], p_font_size, p_modulate);
}
void CanvasItem::draw_char_outline(const Ref<Font> &p_font, const Point2 &p_pos, const String &p_char, int p_font_size, int p_size, const Color &p_modulate) const {
ERR_FAIL_COND_MSG(!drawing, "Drawing is only allowed inside NOTIFICATION_DRAW, _draw() function or 'draw' signal.");
ERR_FAIL_COND(p_char.length() != 1);
ERR_FAIL_COND(p_font.is_null());
p_font->draw_char_outline(canvas_item, p_pos, p_char[0], p_font_size, p_size, p_modulate);
}
void CanvasItem::_notify_transform(CanvasItem *p_node) {
/* This check exists to avoid re-propagating the transform
* notification down the tree on dirty nodes. It provides
* optimization by avoiding redundancy (nodes are dirty, will get the
* notification anyway).
*/
if (/*p_node->xform_change.in_list() &&*/ p_node->global_invalid) {
return; //nothing to do
}
p_node->global_invalid = true;
if (p_node->notify_transform && !p_node->xform_change.in_list()) {
if (!p_node->block_transform_notify) {
if (p_node->is_inside_tree()) {
get_tree()->xform_change_list.add(&p_node->xform_change);
}
}
}
for (CanvasItem *ci : p_node->children_items) {
if (ci->top_level) {
continue;
}
_notify_transform(ci);
}
}
Rect2 CanvasItem::get_viewport_rect() const {
ERR_FAIL_COND_V(!is_inside_tree(), Rect2());
return get_viewport()->get_visible_rect();
}
RID CanvasItem::get_canvas() const {
ERR_FAIL_COND_V(!is_inside_tree(), RID());
if (canvas_layer) {
return canvas_layer->get_canvas();
} else {
return get_viewport()->find_world_2d()->get_canvas();
}
}
ObjectID CanvasItem::get_canvas_layer_instance_id() const {
if (canvas_layer) {
return canvas_layer->get_instance_id();
} else {
return ObjectID();
}
}
CanvasItem *CanvasItem::get_top_level() const {
CanvasItem *ci = const_cast<CanvasItem *>(this);
while (!ci->top_level && Object::cast_to<CanvasItem>(ci->get_parent())) {
ci = Object::cast_to<CanvasItem>(ci->get_parent());
}
return ci;
}
Ref<World2D> CanvasItem::get_world_2d() const {
ERR_FAIL_COND_V(!is_inside_tree(), Ref<World2D>());
CanvasItem *tl = get_top_level();
if (tl->get_viewport()) {
return tl->get_viewport()->find_world_2d();
} else {
return Ref<World2D>();
}
}
RID CanvasItem::get_viewport_rid() const {
ERR_FAIL_COND_V(!is_inside_tree(), RID());
return get_viewport()->get_viewport_rid();
}
void CanvasItem::set_block_transform_notify(bool p_enable) {
block_transform_notify = p_enable;
}
bool CanvasItem::is_block_transform_notify_enabled() const {
return block_transform_notify;
}
void CanvasItem::set_draw_behind_parent(bool p_enable) {
if (behind == p_enable) {
return;
}
behind = p_enable;
RenderingServer::get_singleton()->canvas_item_set_draw_behind_parent(canvas_item, behind);
}
bool CanvasItem::is_draw_behind_parent_enabled() const {
return behind;
}
void CanvasItem::set_material(const Ref<Material> &p_material) {
material = p_material;
RID rid;
if (material.is_valid()) {
rid = material->get_rid();
}
RS::get_singleton()->canvas_item_set_material(canvas_item, rid);
notify_property_list_changed(); //properties for material exposed
}
void CanvasItem::set_use_parent_material(bool p_use_parent_material) {
use_parent_material = p_use_parent_material;
RS::get_singleton()->canvas_item_set_use_parent_material(canvas_item, p_use_parent_material);
}
bool CanvasItem::get_use_parent_material() const {
return use_parent_material;
}
Ref<Material> CanvasItem::get_material() const {
return material;
}
Vector2 CanvasItem::make_canvas_position_local(const Vector2 &screen_point) const {
ERR_FAIL_COND_V(!is_inside_tree(), screen_point);
Transform2D local_matrix = (get_canvas_transform() * get_global_transform()).affine_inverse();
return local_matrix.xform(screen_point);
}
Ref<InputEvent> CanvasItem::make_input_local(const Ref<InputEvent> &p_event) const {
ERR_FAIL_COND_V(p_event.is_null(), p_event);
ERR_FAIL_COND_V(!is_inside_tree(), p_event);
return p_event->xformed_by((get_canvas_transform() * get_global_transform()).affine_inverse());
}
Vector2 CanvasItem::get_global_mouse_position() const {
ERR_FAIL_COND_V(!get_viewport(), Vector2());
return get_canvas_transform().affine_inverse().xform(get_viewport()->get_mouse_position());
}
Vector2 CanvasItem::get_local_mouse_position() const {
ERR_FAIL_COND_V(!get_viewport(), Vector2());
return get_global_transform().affine_inverse().xform(get_global_mouse_position());
}
void CanvasItem::force_update_transform() {
ERR_FAIL_COND(!is_inside_tree());
if (!xform_change.in_list()) {
return;
}
get_tree()->xform_change_list.remove(&xform_change);
notification(NOTIFICATION_TRANSFORM_CHANGED);
}
void CanvasItem::_validate_property(PropertyInfo &p_property) const {
if (hide_clip_children && p_property.name == "clip_children") {
p_property.usage = PROPERTY_USAGE_NONE;
}
}
void CanvasItem::_bind_methods() {
ClassDB::bind_method(D_METHOD("_top_level_raise_self"), &CanvasItem::_top_level_raise_self);
#ifdef TOOLS_ENABLED
ClassDB::bind_method(D_METHOD("_edit_set_state", "state"), &CanvasItem::_edit_set_state);
ClassDB::bind_method(D_METHOD("_edit_get_state"), &CanvasItem::_edit_get_state);
ClassDB::bind_method(D_METHOD("_edit_set_position", "position"), &CanvasItem::_edit_set_position);
ClassDB::bind_method(D_METHOD("_edit_get_position"), &CanvasItem::_edit_get_position);
ClassDB::bind_method(D_METHOD("_edit_set_scale", "scale"), &CanvasItem::_edit_set_scale);
ClassDB::bind_method(D_METHOD("_edit_get_scale"), &CanvasItem::_edit_get_scale);
ClassDB::bind_method(D_METHOD("_edit_set_rect", "rect"), &CanvasItem::_edit_set_rect);
ClassDB::bind_method(D_METHOD("_edit_get_rect"), &CanvasItem::_edit_get_rect);
ClassDB::bind_method(D_METHOD("_edit_use_rect"), &CanvasItem::_edit_use_rect);
ClassDB::bind_method(D_METHOD("_edit_set_rotation", "degrees"), &CanvasItem::_edit_set_rotation);
ClassDB::bind_method(D_METHOD("_edit_get_rotation"), &CanvasItem::_edit_get_rotation);
ClassDB::bind_method(D_METHOD("_edit_use_rotation"), &CanvasItem::_edit_use_rotation);
ClassDB::bind_method(D_METHOD("_edit_set_pivot", "pivot"), &CanvasItem::_edit_set_pivot);
ClassDB::bind_method(D_METHOD("_edit_get_pivot"), &CanvasItem::_edit_get_pivot);
ClassDB::bind_method(D_METHOD("_edit_use_pivot"), &CanvasItem::_edit_use_pivot);
ClassDB::bind_method(D_METHOD("_edit_get_transform"), &CanvasItem::_edit_get_transform);
#endif
ClassDB::bind_method(D_METHOD("get_canvas_item"), &CanvasItem::get_canvas_item);
ClassDB::bind_method(D_METHOD("set_visible", "visible"), &CanvasItem::set_visible);
ClassDB::bind_method(D_METHOD("is_visible"), &CanvasItem::is_visible);
ClassDB::bind_method(D_METHOD("is_visible_in_tree"), &CanvasItem::is_visible_in_tree);
ClassDB::bind_method(D_METHOD("show"), &CanvasItem::show);
ClassDB::bind_method(D_METHOD("hide"), &CanvasItem::hide);
ClassDB::bind_method(D_METHOD("queue_redraw"), &CanvasItem::queue_redraw);
ClassDB::bind_method(D_METHOD("move_to_front"), &CanvasItem::move_to_front);
ClassDB::bind_method(D_METHOD("set_as_top_level", "enable"), &CanvasItem::set_as_top_level);
ClassDB::bind_method(D_METHOD("is_set_as_top_level"), &CanvasItem::is_set_as_top_level);
ClassDB::bind_method(D_METHOD("set_light_mask", "light_mask"), &CanvasItem::set_light_mask);
ClassDB::bind_method(D_METHOD("get_light_mask"), &CanvasItem::get_light_mask);
ClassDB::bind_method(D_METHOD("set_modulate", "modulate"), &CanvasItem::set_modulate);
ClassDB::bind_method(D_METHOD("get_modulate"), &CanvasItem::get_modulate);
ClassDB::bind_method(D_METHOD("set_self_modulate", "self_modulate"), &CanvasItem::set_self_modulate);
ClassDB::bind_method(D_METHOD("get_self_modulate"), &CanvasItem::get_self_modulate);
ClassDB::bind_method(D_METHOD("set_z_index", "z_index"), &CanvasItem::set_z_index);
ClassDB::bind_method(D_METHOD("get_z_index"), &CanvasItem::get_z_index);
ClassDB::bind_method(D_METHOD("set_z_as_relative", "enable"), &CanvasItem::set_z_as_relative);
ClassDB::bind_method(D_METHOD("is_z_relative"), &CanvasItem::is_z_relative);
ClassDB::bind_method(D_METHOD("set_y_sort_enabled", "enabled"), &CanvasItem::set_y_sort_enabled);
ClassDB::bind_method(D_METHOD("is_y_sort_enabled"), &CanvasItem::is_y_sort_enabled);
ClassDB::bind_method(D_METHOD("set_draw_behind_parent", "enable"), &CanvasItem::set_draw_behind_parent);
ClassDB::bind_method(D_METHOD("is_draw_behind_parent_enabled"), &CanvasItem::is_draw_behind_parent_enabled);