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godot/scene/2d/canvas_item.cpp

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/*************************************************************************/
/* canvas_item.cpp */
/*************************************************************************/
/* This file is part of: */
/* GODOT ENGINE */
/* http://www.godotengine.org */
/*************************************************************************/
/* 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 "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"
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!=p_visible) //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);
}
}
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);
}
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
return 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;
Viewport *viewport=NULL;
canvas_layer=NULL;
while(n) {
if (n->cast_to<Viewport>()) {
viewport = n->cast_to<Viewport>();
break;
}
if (!canvas_layer && n->cast_to<CanvasLayer>()) {
canvas_layer = n->cast_to<CanvasLayer>();
}
n=n->get_parent();
}
RID canvas;
if (canvas_layer)
canvas=canvas_layer->get_world_2d()->get_canvas();
else
canvas=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();
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;
}
} 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::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) {
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);
}
void CanvasItem::draw_texture_rect(const Ref<Texture>& p_texture,const Rect2& p_rect, bool p_tile,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_rect(canvas_item,p_rect,p_tile,p_modulate);
}
void CanvasItem::draw_texture_rect_region(const Ref<Texture>& p_texture,const Rect2& p_rect, const Rect2& p_src_rect,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_rect_region(canvas_item,p_rect,p_src_rect,p_modulate);
}
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_set_transform(canvas_item,xform);
}
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::_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"),&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_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("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_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","enabe"),&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"),&CanvasItem::draw_texture);
ObjectTypeDB::bind_method(_MD("draw_texture_rect","texture:Texture","rect","tile","modulate"),&CanvasItem::draw_texture_rect,DEFVAL(false),DEFVAL(Color(1,1,1)));
ObjectTypeDB::bind_method(_MD("draw_texture_rect_region","texture:Texture","rect","src_rect","modulate"),&CanvasItem::draw_texture_rect_region,DEFVAL(Color(1,1,1)));
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(Array()),DEFVAL(Ref<Texture>()),DEFVAL(1.0));
ObjectTypeDB::bind_method(_MD("draw_polygon","points","colors","uvs","texture:Texture"),&CanvasItem::draw_polygon,DEFVAL(Array()),DEFVAL(Ref<Texture>()));
ObjectTypeDB::bind_method(_MD("draw_colored_polygon","points","color","uvs","texture:Texture"),&CanvasItem::draw_colored_polygon,DEFVAL(Array()),DEFVAL(Ref<Texture>()));
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("get_transform"),&CanvasItem::get_transform);
ObjectTypeDB::bind_method(_MD("get_global_transform"),&CanvasItem::get_global_transform);
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"),&CanvasItem::get_canvas);
ObjectTypeDB::bind_method(_MD("get_world_2d"),&CanvasItem::get_world_2d);
//ObjectTypeDB::bind_method(_MD("get_viewport"),&CanvasItem::get_viewport);
BIND_VMETHOD(MethodInfo("_draw"));
ADD_PROPERTY( PropertyInfo(Variant::BOOL,"visibility/visible"), _SCS("_set_visible_"),_SCS("_is_visible_") );
ADD_PROPERTY( PropertyInfo(Variant::REAL,"visibility/opacity",PROPERTY_HINT_RANGE, "0,1,0.01"), _SCS("set_opacity"),_SCS("get_opacity") );
ADD_PROPERTY( PropertyInfo(Variant::REAL,"visibility/self_opacity",PROPERTY_HINT_RANGE, "0,1,0.01"), _SCS("set_self_opacity"),_SCS("get_self_opacity") );
ADD_PROPERTY( 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") );
//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
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 if (get_viewport()) {
return get_viewport()->get_final_transform() * get_viewport()->get_canvas_transform();
}
return Matrix32();
}
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;
global_invalid=true;
C=NULL;
}
CanvasItem::~CanvasItem() {
VisualServer::get_singleton()->free(canvas_item);
}
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