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godot/scene/2d/canvas_item.cpp
Kyle Luce 605193b22f Conversion function for screen coords to local Canvas coords 
- Useful if you need to Convert screen coords to the coordinate space of a
  CanvasItem, but don't have an associated InputEvent to use in
  #make_event_local.

For example, if you have a particular point on the screen you'd like to project
into World Space, for various reasons, you would use this function on the root
of the scene. This is analogous to ray casting from screen space in 3D.
2016-07-10 16:06:57 -07:00

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/*************************************************************************/
/* canvas_item.cpp */
/*************************************************************************/
/* This file is part of: */
/* GODOT ENGINE */
/* http://www.godotengine.org */
/*************************************************************************/
/* Copyright (c) 2007-2016 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 "servers/visual_server.h"
#include "scene/main/viewport.h"
#include "scene/main/canvas_layer.h"
#include "message_queue.h"
#include "scene/scene_string_names.h"
#include "scene/resources/font.h"
#include "scene/resources/texture.h"
#include "scene/resources/style_box.h"
#include "os/input.h"
bool CanvasItemMaterial::_set(const StringName& p_name, const Variant& p_value) {
if (p_name==SceneStringNames::get_singleton()->shader_shader) {
set_shader(p_value);
return true;
} else if (p_name==SceneStringNames::get_singleton()->shading_mode) {
set_shading_mode(ShadingMode(p_value.operator int()));
return true;
} else {
if (shader.is_valid()) {
StringName pr = shader->remap_param(p_name);
if (!pr) {
String n = p_name;
if (n.find("param/")==0) { //backwards compatibility
pr = n.substr(6,n.length());
}
}
if (pr) {
VisualServer::get_singleton()->canvas_item_material_set_shader_param(material,pr,p_value);
return true;
}
}
}
return false;
}
bool CanvasItemMaterial::_get(const StringName& p_name,Variant &r_ret) const {
if (p_name==SceneStringNames::get_singleton()->shader_shader) {
r_ret=get_shader();
return true;
} else if (p_name==SceneStringNames::get_singleton()->shading_mode) {
r_ret=shading_mode;
return true;
} else {
if (shader.is_valid()) {
StringName pr = shader->remap_param(p_name);
if (pr) {
r_ret=VisualServer::get_singleton()->canvas_item_material_get_shader_param(material,pr);
return true;
}
}
}
return false;
}
void CanvasItemMaterial::_get_property_list( List<PropertyInfo> *p_list) const {
p_list->push_back( PropertyInfo( Variant::OBJECT, "shader/shader", PROPERTY_HINT_RESOURCE_TYPE,"CanvasItemShader,CanvasItemShaderGraph" ) );
p_list->push_back( PropertyInfo( Variant::INT, "shader/shading_mode",PROPERTY_HINT_ENUM,"Normal,Unshaded,Light Only") );
if (!shader.is_null()) {
shader->get_param_list(p_list);
}
}
void CanvasItemMaterial::set_shader(const Ref<Shader>& p_shader) {
ERR_FAIL_COND(p_shader.is_valid() && p_shader->get_mode()!=Shader::MODE_CANVAS_ITEM);
shader=p_shader;
RID rid;
if (shader.is_valid())
rid=shader->get_rid();
VS::get_singleton()->canvas_item_material_set_shader(material,rid);
_change_notify(); //properties for shader exposed
emit_changed();
}
Ref<Shader> CanvasItemMaterial::get_shader() const{
return shader;
}
void CanvasItemMaterial::set_shader_param(const StringName& p_param,const Variant& p_value){
VS::get_singleton()->canvas_item_material_set_shader_param(material,p_param,p_value);
}
Variant CanvasItemMaterial::get_shader_param(const StringName& p_param) const{
return VS::get_singleton()->canvas_item_material_get_shader_param(material,p_param);
}
RID CanvasItemMaterial::get_rid() const {
return material;
}
void CanvasItemMaterial::set_shading_mode(ShadingMode p_mode) {
shading_mode=p_mode;
VS::get_singleton()->canvas_item_material_set_shading_mode(material,VS::CanvasItemShadingMode(p_mode));
}
CanvasItemMaterial::ShadingMode CanvasItemMaterial::get_shading_mode() const {
return shading_mode;
}
void CanvasItemMaterial::_bind_methods() {
ObjectTypeDB::bind_method(_MD("set_shader","shader:Shader"),&CanvasItemMaterial::set_shader);
ObjectTypeDB::bind_method(_MD("get_shader:Shader"),&CanvasItemMaterial::get_shader);
ObjectTypeDB::bind_method(_MD("set_shader_param","param","value"),&CanvasItemMaterial::set_shader_param);
ObjectTypeDB::bind_method(_MD("get_shader_param","param"),&CanvasItemMaterial::get_shader_param);
ObjectTypeDB::bind_method(_MD("set_shading_mode","mode"),&CanvasItemMaterial::set_shading_mode);
ObjectTypeDB::bind_method(_MD("get_shading_mode"),&CanvasItemMaterial::get_shading_mode);
BIND_CONSTANT( SHADING_NORMAL );
BIND_CONSTANT( SHADING_UNSHADED );
BIND_CONSTANT( SHADING_ONLY_LIGHT );
}
void CanvasItemMaterial::get_argument_options(const StringName& p_function,int p_idx,List<String>*r_options) const {
String f = p_function.operator String();
if ((f=="get_shader_param" || f=="set_shader_param") && p_idx==0) {
if (shader.is_valid()) {
List<PropertyInfo> pl;
shader->get_param_list(&pl);
for (List<PropertyInfo>::Element *E=pl.front();E;E=E->next()) {
r_options->push_back("\""+E->get().name.replace_first("shader_param/","")+"\"");
}
}
}
Resource::get_argument_options(p_function,p_idx,r_options);
}
CanvasItemMaterial::CanvasItemMaterial() {
material=VS::get_singleton()->canvas_item_material_create();
shading_mode=SHADING_NORMAL;
}
CanvasItemMaterial::~CanvasItemMaterial(){
VS::get_singleton()->free(material);
}
///////////////////////////////////////////////////////////////////
bool CanvasItem::is_visible() const {
if (!is_inside_tree())
return false;
const CanvasItem *p=this;
while(p) {
if (p->hidden)
return false;
p=p->get_parent_item();
}
return true;
}
bool CanvasItem::is_hidden() const {
/*if (!is_inside_scene())
return false;*/
return hidden;
}
void CanvasItem::_propagate_visibility_changed(bool p_visible) {
notification(NOTIFICATION_VISIBILITY_CHANGED);
if (p_visible)
update(); //todo optimize
else
emit_signal(SceneStringNames::get_singleton()->hide);
_block();
for(int i=0;i<get_child_count();i++) {
CanvasItem *c=get_child(i)->cast_to<CanvasItem>();
if (c && !c->hidden) //should the toplevels stop propagation? i think so but..
c->_propagate_visibility_changed(p_visible);
}
_unblock();
}
void CanvasItem::show() {
if (!hidden)
return;
hidden=false;
VisualServer::get_singleton()->canvas_item_set_visible(canvas_item,true);
if (!is_inside_tree())
return;
if (is_visible()) {
_propagate_visibility_changed(true);
}
_change_notify("visibility/visible");
}
void CanvasItem::hide() {
if (hidden)
return;
bool propagate=is_inside_tree() && is_visible();
hidden=true;
VisualServer::get_singleton()->canvas_item_set_visible(canvas_item,false);
if (!is_inside_tree())
return;
if (propagate)
_propagate_visibility_changed(false);
_change_notify("visibility/visible");
}
void CanvasItem::set_hidden(bool p_hidden) {
if (hidden == p_hidden) {
return;
}
_set_visible_(!p_hidden);
}
Variant CanvasItem::edit_get_state() const {
return Variant();
}
void CanvasItem::edit_set_state(const Variant& p_state) {
}
void CanvasItem::edit_set_rect(const Rect2& p_edit_rect) {
//used by editors, implement at will
}
void CanvasItem::edit_rotate(float p_rot) {
}
Size2 CanvasItem::edit_get_minimum_size() const {
return Size2(-1,-1); //no limit
}
void CanvasItem::_update_callback() {
if (!is_inside_tree()) {
pending_update=false;
return;
}
VisualServer::get_singleton()->canvas_item_clear(get_canvas_item());
//todo updating = true - only allow drawing here
if (is_visible()) { //todo optimize this!!
if (first_draw) {
notification(NOTIFICATION_VISIBILITY_CHANGED);
first_draw=false;
}
drawing=true;
notification(NOTIFICATION_DRAW);
emit_signal(SceneStringNames::get_singleton()->draw);
if (get_script_instance()) {
Variant::CallError err;
get_script_instance()->call_multilevel_reversed(SceneStringNames::get_singleton()->_draw,NULL,0);
}
drawing=false;
}
//todo updating = false
pending_update=false; // don't change to false until finished drawing (avoid recursive update)
}
Matrix32 CanvasItem::get_global_transform_with_canvas() const {
const CanvasItem *ci = this;
Matrix32 xform;
const CanvasItem *last_valid=NULL;
while(ci) {
last_valid=ci;
xform = ci->get_transform() * xform;
ci=ci->get_parent_item();
}
if (last_valid->canvas_layer)
return last_valid->canvas_layer->get_transform() * xform;
else if (is_inside_tree())
return get_viewport()->get_canvas_transform() * xform;
}
Matrix32 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::_queue_sort_children() {
if (pending_children_sort)
return;
pending_children_sort=true;
MessageQueue::get_singleton()->push_call(this,"_sort_children");
}
void CanvasItem::_sort_children() {
pending_children_sort=false;
if (!is_inside_tree())
return;
for(int i=0;i<get_child_count();i++) {
Node *n = get_child(i);
CanvasItem *ci=n->cast_to<CanvasItem>();
if (ci) {
if (ci->toplevel || ci->group!="")
continue;
VisualServer::get_singleton()->canvas_item_raise(n->cast_to<CanvasItem>()->canvas_item);
}
}
}
void CanvasItem::_raise_self() {
if (!is_inside_tree())
return;
VisualServer::get_singleton()->canvas_item_raise(canvas_item);
}
void CanvasItem::_enter_canvas() {
if ((!get_parent() || !get_parent()->cast_to<CanvasItem>()) || toplevel) {
Node *n = this;
canvas_layer=NULL;
while(n) {
canvas_layer = n->cast_to<CanvasLayer>();
if (canvas_layer) {
break;
}
n=n->get_parent();
}
RID canvas;
if (canvas_layer)
canvas=canvas_layer->get_world_2d()->get_canvas();
else
canvas=get_viewport()->find_world_2d()->get_canvas();
VisualServer::get_singleton()->canvas_item_set_parent(canvas_item,canvas);
group = "root_canvas"+itos(canvas.get_id());
add_to_group(group);
get_tree()->call_group(SceneTree::GROUP_CALL_UNIQUE,group,"_raise_self");
} else {
CanvasItem *parent = get_parent_item();
canvas_layer=parent->canvas_layer;
VisualServer::get_singleton()->canvas_item_set_parent(canvas_item,parent->get_canvas_item());
parent->_queue_sort_children();
}
pending_update=false;
update();
notification(NOTIFICATION_ENTER_CANVAS);
}
void CanvasItem::_exit_canvas() {
notification(NOTIFICATION_EXIT_CANVAS,true); //reverse the notification
VisualServer::get_singleton()->canvas_item_set_parent(canvas_item,RID());
canvas_layer=NULL;
group="";
}
void CanvasItem::_notification(int p_what) {
switch(p_what) {
case NOTIFICATION_ENTER_TREE: {
first_draw=true;
pending_children_sort=false;
if (get_parent()) {
CanvasItem *ci = get_parent()->cast_to<CanvasItem>();
if (ci)
C=ci->children_items.push_back(this);
}
_enter_canvas();
if (!block_transform_notify && !xform_change.in_list()) {
get_tree()->xform_change_list.add(&xform_change);
}
} break;
case NOTIFICATION_MOVED_IN_PARENT: {
if (group!="") {
get_tree()->call_group(SceneTree::GROUP_CALL_UNIQUE,group,"_raise_self");
} else {
CanvasItem *p = get_parent_item();
ERR_FAIL_COND(!p);
p->_queue_sort_children();
}
} break;
case NOTIFICATION_EXIT_TREE: {
if (xform_change.in_list())
get_tree()->xform_change_list.remove(&xform_change);
_exit_canvas();
if (C) {
get_parent()->cast_to<CanvasItem>()->children_items.erase(C);
C=NULL;
}
global_invalid=true;
} break;
case NOTIFICATION_DRAW: {
} break;
case NOTIFICATION_TRANSFORM_CHANGED: {
} break;
case NOTIFICATION_VISIBILITY_CHANGED: {
emit_signal(SceneStringNames::get_singleton()->visibility_changed);
} break;
}
}
void CanvasItem::_set_visible_(bool p_visible) {
if (p_visible)
show();
else
hide();
}
bool CanvasItem::_is_visible_() const {
return !is_hidden();
}
void CanvasItem::update() {
if (!is_inside_tree())
return;
if (pending_update)
return;
pending_update=true;
MessageQueue::get_singleton()->push_call(this,"_update_callback");
}
void CanvasItem::set_opacity(float p_opacity) {
opacity=p_opacity;
VisualServer::get_singleton()->canvas_item_set_opacity(canvas_item,opacity);
}
float CanvasItem::get_opacity() const {
return opacity;
}
void CanvasItem::set_as_toplevel(bool p_toplevel) {
if (toplevel==p_toplevel)
return;
if (!is_inside_tree()) {
toplevel=p_toplevel;
return;
}
_exit_canvas();
toplevel=p_toplevel;
_enter_canvas();
}
bool CanvasItem::is_set_as_toplevel() const {
return toplevel;
}
CanvasItem *CanvasItem::get_parent_item() const {
if (toplevel)
return NULL;
Node *parent = get_parent();
if (!parent)
return NULL;
return parent->cast_to<CanvasItem>();
}
void CanvasItem::set_self_opacity(float p_self_opacity) {
self_opacity=p_self_opacity;
VisualServer::get_singleton()->canvas_item_set_self_opacity(canvas_item,self_opacity);
}
float CanvasItem::get_self_opacity() const {
return self_opacity;
}
void CanvasItem::set_blend_mode(BlendMode p_blend_mode) {
ERR_FAIL_INDEX(p_blend_mode,5);
blend_mode=p_blend_mode;
VisualServer::get_singleton()->canvas_item_set_blend_mode(canvas_item,VS::MaterialBlendMode(blend_mode));
}
CanvasItem::BlendMode CanvasItem::get_blend_mode() const {
return blend_mode;
}
void CanvasItem::set_light_mask(int p_light_mask) {
light_mask=p_light_mask;
VS::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() {
update();
emit_signal(SceneStringNames::get_singleton()->item_rect_changed);
}
void CanvasItem::draw_line(const Point2& p_from, const Point2& p_to,const Color& p_color,float p_width) {
if (!drawing) {
ERR_EXPLAIN("Drawing is only allowed inside NOTIFICATION_DRAW, _draw() function or 'draw' signal.");
ERR_FAIL();
}
VisualServer::get_singleton()->canvas_item_add_line(canvas_item,p_from,p_to,p_color,p_width);
}
void CanvasItem::draw_rect(const Rect2& p_rect, const Color& p_color) {
if (!drawing) {
ERR_EXPLAIN("Drawing is only allowed inside NOTIFICATION_DRAW, _draw() function or 'draw' signal.");
ERR_FAIL();
}
VisualServer::get_singleton()->canvas_item_add_rect(canvas_item,p_rect,p_color);
}
void CanvasItem::draw_circle(const Point2& p_pos, float p_radius, const Color& p_color) {
if (!drawing) {
ERR_EXPLAIN("Drawing is only allowed inside NOTIFICATION_DRAW, _draw() function or 'draw' signal.");
ERR_FAIL();
}
VisualServer::get_singleton()->canvas_item_add_circle(canvas_item,p_pos,p_radius,p_color);
}
void CanvasItem::draw_texture(const Ref<Texture>& p_texture,const Point2& p_pos,const Color& p_modulate) {
if (!drawing) {
ERR_EXPLAIN("Drawing is only allowed inside NOTIFICATION_DRAW, _draw() function or 'draw' signal.");
ERR_FAIL();
}
ERR_FAIL_COND(p_texture.is_null());
p_texture->draw(canvas_item,p_pos,p_modulate);
}
void CanvasItem::draw_texture_rect(const Ref<Texture>& p_texture,const Rect2& p_rect, bool p_tile,const Color& p_modulate, bool p_transpose) {
if (!drawing) {
ERR_EXPLAIN("Drawing is only allowed inside NOTIFICATION_DRAW, _draw() function or 'draw' signal.");
ERR_FAIL();
}
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<Texture>& p_texture,const Rect2& p_rect, const Rect2& p_src_rect,const Color& p_modulate, bool p_transpose) {
if (!drawing) {
ERR_EXPLAIN("Drawing is only allowed inside NOTIFICATION_DRAW, _draw() function or 'draw' signal.");
ERR_FAIL();
}
ERR_FAIL_COND(p_texture.is_null());
p_texture->draw_rect_region(canvas_item,p_rect,p_src_rect,p_modulate,p_transpose);
}
void CanvasItem::draw_style_box(const Ref<StyleBox>& p_style_box,const Rect2& p_rect) {
if (!drawing) {
ERR_EXPLAIN("Drawing is only allowed inside NOTIFICATION_DRAW, _draw() function or 'draw' signal.");
ERR_FAIL();
}
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<Texture> p_texture,float p_width) {
if (!drawing) {
ERR_EXPLAIN("Drawing is only allowed inside NOTIFICATION_DRAW, _draw() function or 'draw' signal.");
ERR_FAIL();
}
RID rid = p_texture.is_valid() ? p_texture->get_rid() : RID();
VisualServer::get_singleton()->canvas_item_add_primitive(canvas_item,p_points,p_colors,p_uvs,rid,p_width);
}
void CanvasItem::draw_set_transform(const Point2& p_offset, float p_rot, const Size2& p_scale) {
if (!drawing) {
ERR_EXPLAIN("Drawing is only allowed inside NOTIFICATION_DRAW, _draw() function or 'draw' signal.");
ERR_FAIL();
}
Matrix32 xform(p_rot,p_offset);
xform.scale_basis(p_scale);
VisualServer::get_singleton()->canvas_item_add_set_transform(canvas_item,xform);
}
void CanvasItem::draw_set_transform_matrix(const Matrix32& p_matrix) {
if (!drawing) {
ERR_EXPLAIN("Drawing is only allowed inside NOTIFICATION_DRAW, _draw() function or 'draw' signal.");
ERR_FAIL();
}
VisualServer::get_singleton()->canvas_item_add_set_transform(canvas_item,p_matrix);
}
void CanvasItem::draw_polygon(const Vector<Point2>& p_points, const Vector<Color>& p_colors,const Vector<Point2>& p_uvs, Ref<Texture> p_texture) {
if (!drawing) {
ERR_EXPLAIN("Drawing is only allowed inside NOTIFICATION_DRAW, _draw() function or 'draw' signal.");
ERR_FAIL();
}
RID rid = p_texture.is_valid() ? p_texture->get_rid() : RID();
VisualServer::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<Texture> p_texture) {
if (!drawing) {
ERR_EXPLAIN("Drawing is only allowed inside NOTIFICATION_DRAW, _draw() function or 'draw' signal.");
ERR_FAIL();
}
Vector<Color> colors;
colors.push_back(p_color);
RID rid = p_texture.is_valid() ? p_texture->get_rid() : RID();
VisualServer::get_singleton()->canvas_item_add_polygon(canvas_item,p_points,colors,p_uvs,rid);
}
void CanvasItem::draw_string(const Ref<Font>& p_font,const Point2& p_pos, const String& p_text,const Color& p_modulate,int p_clip_w) {
if (!drawing) {
ERR_EXPLAIN("Drawing is only allowed inside NOTIFICATION_DRAW, _draw() function or 'draw' signal.");
ERR_FAIL();
}
ERR_FAIL_COND(p_font.is_null());
p_font->draw(canvas_item,p_pos,p_text,p_modulate,p_clip_w);
}
float CanvasItem::draw_char(const Ref<Font>& p_font,const Point2& p_pos, const String& p_char,const String& p_next,const Color& p_modulate) {
if (!drawing) {
ERR_EXPLAIN("Drawing is only allowed inside NOTIFICATION_DRAW, _draw() function or 'draw' signal.");
ERR_FAIL_V(0);
}
ERR_FAIL_COND_V(p_char.length()!=1,0);
ERR_FAIL_COND_V(p_font.is_null(),0);
return p_font->draw_char(canvas_item,p_pos,p_char[0],p_next.c_str()[0],p_modulate);
}
void CanvasItem::_notify_transform(CanvasItem *p_node) {
if (p_node->xform_change.in_list() && p_node->global_invalid)
return; //nothing to do
p_node->global_invalid=true;
if (!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(List<CanvasItem*>::Element *E=p_node->children_items.front();E;E=E->next()) {
CanvasItem* ci=E->get();
if (ci->toplevel)
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_world_2d()->get_canvas();
else
return get_viewport()->find_world_2d()->get_canvas();
}
CanvasItem *CanvasItem::get_toplevel() const {
CanvasItem *ci=const_cast<CanvasItem*>(this);
while(!ci->toplevel && ci->get_parent() && ci->get_parent()->cast_to<CanvasItem>()) {
ci=ci->get_parent()->cast_to<CanvasItem>();
}
return ci;
}
Ref<World2D> CanvasItem::get_world_2d() const {
ERR_FAIL_COND_V(!is_inside_tree(),Ref<World2D>());
CanvasItem *tl=get_toplevel();
if (tl->canvas_layer) {
return tl->canvas_layer->get_world_2d();
} else 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();
}
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;
VisualServer::get_singleton()->canvas_item_set_on_top(canvas_item,!behind);
}
bool CanvasItem::is_draw_behind_parent_enabled() const{
return behind;
}
void CanvasItem::set_material(const Ref<CanvasItemMaterial>& p_material) {
material=p_material;
RID rid;
if (material.is_valid())
rid=material->get_rid();
VS::get_singleton()->canvas_item_set_material(canvas_item,rid);
_change_notify(); //properties for material exposed
}
void CanvasItem::set_use_parent_material(bool p_use_parent_material) {
use_parent_material=p_use_parent_material;
VS::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<CanvasItemMaterial> CanvasItem::get_material() const{
return material;
}
Vector2 CanvasItem::make_canvas_pos_local(const Vector2& screen_point) const {
ERR_FAIL_COND_V(!is_inside_tree(),screen_point);
Matrix32 local_matrix = (get_canvas_transform() *
get_global_transform()).affine_inverse();
return local_matrix.xform(screen_point);
}
InputEvent CanvasItem::make_input_local(const InputEvent& p_event) const {
ERR_FAIL_COND_V(!is_inside_tree(),p_event);
return p_event.xform_by( (get_canvas_transform() * get_global_transform()).affine_inverse() );
}
Vector2 CanvasItem::get_global_mouse_pos() const {
ERR_FAIL_COND_V(!get_viewport(),Vector2());
return get_canvas_transform().affine_inverse().xform( get_viewport()->get_mouse_pos() );
}
Vector2 CanvasItem::get_local_mouse_pos() const{
ERR_FAIL_COND_V(!get_viewport(),Vector2());
return get_global_transform().affine_inverse().xform( get_global_mouse_pos() );
}
void CanvasItem::_bind_methods() {
ObjectTypeDB::bind_method(_MD("_sort_children"),&CanvasItem::_sort_children);
ObjectTypeDB::bind_method(_MD("_raise_self"),&CanvasItem::_raise_self);
ObjectTypeDB::bind_method(_MD("_update_callback"),&CanvasItem::_update_callback);
ObjectTypeDB::bind_method(_MD("_set_visible_"),&CanvasItem::_set_visible_);
ObjectTypeDB::bind_method(_MD("_is_visible_"),&CanvasItem::_is_visible_);
ObjectTypeDB::bind_method(_MD("edit_set_state","state"),&CanvasItem::edit_set_state);
ObjectTypeDB::bind_method(_MD("edit_get_state:Variant"),&CanvasItem::edit_get_state);
ObjectTypeDB::bind_method(_MD("edit_set_rect","rect"),&CanvasItem::edit_set_rect);
ObjectTypeDB::bind_method(_MD("edit_rotate","degrees"),&CanvasItem::edit_rotate);
ObjectTypeDB::bind_method(_MD("get_item_rect"),&CanvasItem::get_item_rect);
ObjectTypeDB::bind_method(_MD("get_item_and_children_rect"),&CanvasItem::get_item_and_children_rect);
//ObjectTypeDB::bind_method(_MD("get_transform"),&CanvasItem::get_transform);
ObjectTypeDB::bind_method(_MD("get_canvas_item"),&CanvasItem::get_canvas_item);
ObjectTypeDB::bind_method(_MD("is_visible"),&CanvasItem::is_visible);
ObjectTypeDB::bind_method(_MD("is_hidden"),&CanvasItem::is_hidden);
ObjectTypeDB::bind_method(_MD("show"),&CanvasItem::show);
ObjectTypeDB::bind_method(_MD("hide"),&CanvasItem::hide);
ObjectTypeDB::bind_method(_MD("set_hidden","hidden"),&CanvasItem::set_hidden);
ObjectTypeDB::bind_method(_MD("update"),&CanvasItem::update);
ObjectTypeDB::bind_method(_MD("set_as_toplevel","enable"),&CanvasItem::set_as_toplevel);
ObjectTypeDB::bind_method(_MD("is_set_as_toplevel"),&CanvasItem::is_set_as_toplevel);
ObjectTypeDB::bind_method(_MD("set_blend_mode","blend_mode"),&CanvasItem::set_blend_mode);
ObjectTypeDB::bind_method(_MD("get_blend_mode"),&CanvasItem::get_blend_mode);
ObjectTypeDB::bind_method(_MD("set_light_mask","light_mask"),&CanvasItem::set_light_mask);
ObjectTypeDB::bind_method(_MD("get_light_mask"),&CanvasItem::get_light_mask);
ObjectTypeDB::bind_method(_MD("set_opacity","opacity"),&CanvasItem::set_opacity);
ObjectTypeDB::bind_method(_MD("get_opacity"),&CanvasItem::get_opacity);
ObjectTypeDB::bind_method(_MD("set_self_opacity","self_opacity"),&CanvasItem::set_self_opacity);
ObjectTypeDB::bind_method(_MD("get_self_opacity"),&CanvasItem::get_self_opacity);
ObjectTypeDB::bind_method(_MD("set_draw_behind_parent","enable"),&CanvasItem::set_draw_behind_parent);
ObjectTypeDB::bind_method(_MD("is_draw_behind_parent_enabled"),&CanvasItem::is_draw_behind_parent_enabled);
ObjectTypeDB::bind_method(_MD("_set_on_top","on_top"),&CanvasItem::_set_on_top);
ObjectTypeDB::bind_method(_MD("_is_on_top"),&CanvasItem::_is_on_top);
//ObjectTypeDB::bind_method(_MD("get_transform"),&CanvasItem::get_transform);
ObjectTypeDB::bind_method(_MD("draw_line","from","to","color","width"),&CanvasItem::draw_line,DEFVAL(1.0));
ObjectTypeDB::bind_method(_MD("draw_rect","rect","color"),&CanvasItem::draw_rect);
ObjectTypeDB::bind_method(_MD("draw_circle","pos","radius","color"),&CanvasItem::draw_circle);
ObjectTypeDB::bind_method(_MD("draw_texture","texture:Texture","pos","modulate"),&CanvasItem::draw_texture,DEFVAL(Color(1,1,1,1)));
ObjectTypeDB::bind_method(_MD("draw_texture_rect","texture:Texture","rect","tile","modulate","transpose"),&CanvasItem::draw_texture_rect,DEFVAL(Color(1,1,1)),DEFVAL(false));
ObjectTypeDB::bind_method(_MD("draw_texture_rect_region","texture:Texture","rect","src_rect","modulate","transpose"),&CanvasItem::draw_texture_rect_region,DEFVAL(Color(1,1,1)),DEFVAL(false));
ObjectTypeDB::bind_method(_MD("draw_style_box","style_box:StyleBox","rect"),&CanvasItem::draw_style_box);
ObjectTypeDB::bind_method(_MD("draw_primitive","points","colors","uvs","texture:Texture","width"),&CanvasItem::draw_primitive,DEFVAL(Variant()),DEFVAL(1.0));
ObjectTypeDB::bind_method(_MD("draw_polygon","points","colors","uvs","texture:Texture"),&CanvasItem::draw_polygon,DEFVAL(Vector2Array()),DEFVAL(Variant()));
ObjectTypeDB::bind_method(_MD("draw_colored_polygon","points","color","uvs","texture:Texture"),&CanvasItem::draw_colored_polygon,DEFVAL(Vector2Array()),DEFVAL(Variant()));
ObjectTypeDB::bind_method(_MD("draw_string","font:Font","pos","text","modulate","clip_w"),&CanvasItem::draw_string,DEFVAL(Color(1,1,1)),DEFVAL(-1));
ObjectTypeDB::bind_method(_MD("draw_char","font:Font","pos","char","next","modulate"),&CanvasItem::draw_char,DEFVAL(Color(1,1,1)));
ObjectTypeDB::bind_method(_MD("draw_set_transform","pos","rot","scale"),&CanvasItem::draw_set_transform);
ObjectTypeDB::bind_method(_MD("draw_set_transform_matrix","xform"),&CanvasItem::draw_set_transform_matrix);
ObjectTypeDB::bind_method(_MD("get_transform"),&CanvasItem::get_transform);
ObjectTypeDB::bind_method(_MD("get_global_transform"),&CanvasItem::get_global_transform);
ObjectTypeDB::bind_method(_MD("get_global_transform_with_canvas"),&CanvasItem::get_global_transform_with_canvas);
ObjectTypeDB::bind_method(_MD("get_viewport_transform"),&CanvasItem::get_viewport_transform);
ObjectTypeDB::bind_method(_MD("get_viewport_rect"),&CanvasItem::get_viewport_rect);
ObjectTypeDB::bind_method(_MD("get_canvas_transform"),&CanvasItem::get_canvas_transform);
ObjectTypeDB::bind_method(_MD("get_local_mouse_pos"),&CanvasItem::get_local_mouse_pos);
ObjectTypeDB::bind_method(_MD("get_global_mouse_pos"),&CanvasItem::get_global_mouse_pos);
ObjectTypeDB::bind_method(_MD("get_canvas"),&CanvasItem::get_canvas);
ObjectTypeDB::bind_method(_MD("get_world_2d"),&CanvasItem::get_world_2d);
//ObjectTypeDB::bind_method(_MD("get_viewport"),&CanvasItem::get_viewport);
ObjectTypeDB::bind_method(_MD("set_material","material:CanvasItemMaterial"),&CanvasItem::set_material);
ObjectTypeDB::bind_method(_MD("get_material:CanvasItemMaterial"),&CanvasItem::get_material);
ObjectTypeDB::bind_method(_MD("set_use_parent_material","enable"),&CanvasItem::set_use_parent_material);
ObjectTypeDB::bind_method(_MD("get_use_parent_material"),&CanvasItem::get_use_parent_material);
ObjectTypeDB::bind_method(_MD("make_canvas_pos_local","screen_point"),
&CanvasItem::make_canvas_pos_local);
ObjectTypeDB::bind_method(_MD("make_input_local","event"),&CanvasItem::make_input_local);
BIND_VMETHOD(MethodInfo("_draw"));
ADD_PROPERTYNO( PropertyInfo(Variant::BOOL,"visibility/visible"), _SCS("_set_visible_"),_SCS("_is_visible_") );
ADD_PROPERTYNO( PropertyInfo(Variant::REAL,"visibility/opacity",PROPERTY_HINT_RANGE, "0,1,0.01"), _SCS("set_opacity"),_SCS("get_opacity") );
ADD_PROPERTYNO( PropertyInfo(Variant::REAL,"visibility/self_opacity",PROPERTY_HINT_RANGE, "0,1,0.01"), _SCS("set_self_opacity"),_SCS("get_self_opacity") );
ADD_PROPERTYNZ( PropertyInfo(Variant::BOOL,"visibility/behind_parent"), _SCS("set_draw_behind_parent"),_SCS("is_draw_behind_parent_enabled") );
ADD_PROPERTY( PropertyInfo(Variant::BOOL,"visibility/on_top",PROPERTY_HINT_NONE,"",0), _SCS("_set_on_top"),_SCS("_is_on_top") ); //compatibility
ADD_PROPERTYNZ( PropertyInfo(Variant::INT,"visibility/blend_mode",PROPERTY_HINT_ENUM, "Mix,Add,Sub,Mul,PMAlpha"), _SCS("set_blend_mode"),_SCS("get_blend_mode") );
ADD_PROPERTYNO( PropertyInfo(Variant::INT,"visibility/light_mask",PROPERTY_HINT_ALL_FLAGS), _SCS("set_light_mask"),_SCS("get_light_mask") );
ADD_PROPERTYNZ( PropertyInfo(Variant::OBJECT,"material/material",PROPERTY_HINT_RESOURCE_TYPE, "CanvasItemMaterial"), _SCS("set_material"),_SCS("get_material") );
ADD_PROPERTYNZ( PropertyInfo(Variant::BOOL,"material/use_parent"), _SCS("set_use_parent_material"),_SCS("get_use_parent_material") );
//exporting these two things doesn't really make much sense i think
//ADD_PROPERTY( PropertyInfo(Variant::BOOL,"transform/toplevel"), _SCS("set_as_toplevel"),_SCS("is_set_as_toplevel") );
//ADD_PROPERTY(PropertyInfo(Variant::BOOL,"transform/notify"),_SCS("set_transform_notify"),_SCS("is_transform_notify_enabled"));
ADD_SIGNAL( MethodInfo("draw") );
ADD_SIGNAL( MethodInfo("visibility_changed") );
ADD_SIGNAL( MethodInfo("hide") );
ADD_SIGNAL( MethodInfo("item_rect_changed") );
BIND_CONSTANT( BLEND_MODE_MIX );
BIND_CONSTANT( BLEND_MODE_ADD );
BIND_CONSTANT( BLEND_MODE_SUB );
BIND_CONSTANT( BLEND_MODE_MUL );
BIND_CONSTANT( BLEND_MODE_PREMULT_ALPHA );
BIND_CONSTANT( NOTIFICATION_DRAW);
BIND_CONSTANT( NOTIFICATION_VISIBILITY_CHANGED );
BIND_CONSTANT( NOTIFICATION_ENTER_CANVAS );
BIND_CONSTANT( NOTIFICATION_EXIT_CANVAS );
BIND_CONSTANT( NOTIFICATION_TRANSFORM_CHANGED );
}
Matrix32 CanvasItem::get_canvas_transform() const {
ERR_FAIL_COND_V(!is_inside_tree(),Matrix32());
if (canvas_layer)
return canvas_layer->get_transform();
else if (get_parent()->cast_to<CanvasItem>())
return get_parent()->cast_to<CanvasItem>()->get_canvas_transform();
else
return get_viewport()->get_canvas_transform();
}
Matrix32 CanvasItem::get_viewport_transform() const {
ERR_FAIL_COND_V(!is_inside_tree(),Matrix32());
if (canvas_layer) {
if (get_viewport()) {
return get_viewport()->get_final_transform() * canvas_layer->get_transform();
} else {
return canvas_layer->get_transform();
}
} else {
return get_viewport()->get_final_transform() * get_viewport()->get_canvas_transform();
}
}
void CanvasItem::set_notify_local_transform(bool p_enable) {
notify_local_transform=p_enable;
}
bool CanvasItem::is_local_transform_notification_enabled() const {
return notify_local_transform;
}
int CanvasItem::get_canvas_layer() const {
if (canvas_layer)
return canvas_layer->get_layer();
else
return 0;
}
Rect2 CanvasItem::get_item_and_children_rect() const {
Rect2 rect = get_item_rect();
for(int i=0;i<get_child_count();i++) {
CanvasItem *c=get_child(i)->cast_to<CanvasItem>();
if (c) {
Rect2 sir = c->get_transform().xform(c->get_item_and_children_rect());
rect = rect.merge(sir);
}
}
return rect;
}
CanvasItem::CanvasItem() : xform_change(this) {
canvas_item=VisualServer::get_singleton()->canvas_item_create();
hidden=false;
pending_update=false;
opacity=1;
self_opacity=1;
toplevel=false;
pending_children_sort=false;
first_draw=false;
blend_mode=BLEND_MODE_MIX;
drawing=false;
behind=false;
block_transform_notify=false;
// viewport=NULL;
canvas_layer=NULL;
use_parent_material=false;
global_invalid=true;
notify_local_transform=false;
light_mask=1;
C=NULL;
}
CanvasItem::~CanvasItem() {
VisualServer::get_singleton()->free(canvas_item);
}
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