542 lines
10 KiB
C++
542 lines
10 KiB
C++
// Copyright (c) 2016-2018 Easy2D - Nomango
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//
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// Permission is hereby granted, free of charge, to any person obtaining a copy
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// of this software and associated documentation files (the "Software"), to deal
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// in the Software without restriction, including without limitation the rights
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// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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// copies of the Software, and to permit persons to whom the Software is
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// furnished to do so, subject to the following conditions:
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//
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// The above copyright notice and this permission notice shall be included in
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// all copies or substantial portions of the Software.
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//
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// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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// THE SOFTWARE.
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#include "Node.h"
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#include "Factory.h"
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#include "Scene.h"
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#include "Task.h"
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#include "Action.hpp"
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#include "render.h"
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#include "logs.h"
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namespace easy2d
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{
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namespace
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{
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float default_pivot_x = 0.f;
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float default_pivot_y = 0.f;
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bool border_enabled = false;
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}
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void Node::SetDefaultPivot(float pivot_x, float pivot_y)
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{
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default_pivot_x = pivot_x;
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default_pivot_y = pivot_y;
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}
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void easy2d::Node::EnableBorder()
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{
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border_enabled = true;
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}
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void easy2d::Node::DisableBorder()
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{
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border_enabled = false;
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}
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Node::Node()
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: inited_(false)
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, visible_(true)
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, dirty_sort_(false)
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, parent_(nullptr)
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, hash_name_(0)
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, z_order_(0)
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, opacity_(1.f)
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, display_opacity_(1.f)
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, children_()
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, border_color_(Color::Red, 0.6f)
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, initial_matrix_()
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, final_matrix_()
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, pivot_(default_pivot_x, default_pivot_y)
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, size_()
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{
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}
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void Node::Init()
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{
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inited_ = true;
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}
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void Node::OnRender()
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{
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// normal node renders nothing
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}
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void Node::Update(Duration const & dt)
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{
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if (!inited_)
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{
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Init();
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}
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UpdateActions(this, dt);
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UpdateTasks(dt);
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if (!children_.IsEmpty())
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{
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for (auto child = children_.First(); child; child = child->NextItem())
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{
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child->Update(dt);
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}
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}
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}
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void Node::Render()
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{
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if (!visible_)
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return;
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UpdateTransform();
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auto graphics = Graphics::Instance();
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if (children_.IsEmpty())
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{
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graphics->SetTransform(final_matrix_);
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graphics->SetOpacity(display_opacity_);
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OnRender();
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}
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else
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{
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SortChildren();
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// render children those are less than 0 in Z-Order
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spNode child = children_.First();
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for (spNode next; child; child = next)
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{
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next = child->NextItem();
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if (child->GetZOrder() < 0)
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{
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child->Render();
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}
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else
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{
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break;
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}
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}
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graphics->SetTransform(final_matrix_);
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graphics->SetOpacity(display_opacity_);
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OnRender();
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for (spNode next; child; child = next)
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{
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next = child->NextItem();
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child->Render();
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}
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}
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}
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void Node::DispatchEvent(Event * e)
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{
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if (!visible_)
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return;
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this->HandleEvent(e);
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if (!e->has_target)
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{
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EventDispatcher::DispatchEvent(e);
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}
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}
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void Node::HandleEvent(Event * e)
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{
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spNode prev;
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for (auto child = children_.Last(); child; child = prev)
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{
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prev = child->PrevItem();
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child->HandleEvent(e);
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}
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}
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void Node::DrawBorder()
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{
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if (visible_)
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{
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if (border_)
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{
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Graphics::Instance()->DrawGeometry(border_, border_color_, 1.5f);
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}
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for (auto child = children_.First(); child; child = child->NextItem())
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{
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child->DrawBorder();
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}
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}
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}
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void Node::SortChildren()
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{
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if (dirty_sort_)
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{
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children_.Sort(
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[](spNode const& n1, spNode const& n2) { return n1->GetZOrder() < n2->GetZOrder(); }
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);
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dirty_sort_ = false;
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}
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}
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math::Matrix const & Node::GetTransformMatrix()
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{
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UpdateTransform();
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return final_matrix_;
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}
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spNode Node::GetParent() const
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{
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return parent_;
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}
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spScene Node::GetScene() const
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{
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return scene_;
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}
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void Node::UpdateTransform()
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{
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if (!dirty_transform_)
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return;
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dirty_transform_ = false;
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Point center{ size_.width * pivot_.x, size_.height * pivot_.y };
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final_matrix_ = math::Matrix::Scaling(transform_.scale, center)
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* math::Matrix::Skewing(transform_.skew.x, transform_.skew.y, center)
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* math::Matrix::Rotation(transform_.rotation, center)
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* math::Matrix::Translation(transform_.position - center);
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initial_matrix_ = final_matrix_ * math::Matrix::Translation(
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Point{ size_.width * pivot_.x, size_.height * pivot_.y }
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);
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if (parent_)
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{
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initial_matrix_ = initial_matrix_ * parent_->initial_matrix_;
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final_matrix_ = final_matrix_ * parent_->initial_matrix_;
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}
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// update children's transform
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for (auto child = children_.First(); child; child = child->NextItem())
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{
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child->dirty_transform_ = true;
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}
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// update border
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if (border_enabled)
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{
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UpdateBorder();
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}
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}
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void Node::UpdateBorder()
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{
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cpRectangleGeometry rect;
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cpTransformedGeometry transformed;
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HRESULT hr = Factory::Instance()->CreateRectangleGeometry(
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rect,
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Rect(Point{}, size_)
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);
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if (SUCCEEDED(hr))
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{
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hr = Factory::Instance()->CreateTransformedGeometry(
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transformed,
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final_matrix_,
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rect
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);
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}
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if (SUCCEEDED(hr))
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{
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border_ = transformed;
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}
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}
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void Node::UpdateOpacity()
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{
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if (parent_)
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{
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display_opacity_ = opacity_ * parent_->display_opacity_;
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}
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for (auto child = children_.First(); child; child = child->NextItem())
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{
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child->UpdateOpacity();
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}
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}
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void Node::SetScene(Scene * scene)
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{
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scene_ = scene;
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for (auto child = children_.First(); child; child = child->NextItem())
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{
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child->scene_ = scene;
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}
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}
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void Node::SetZOrder(int order)
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{
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if (z_order_ == order)
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return;
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z_order_ = order;
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if (parent_)
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{
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parent_->dirty_sort_ = true;
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}
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}
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void Node::SetOpacity(float opacity)
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{
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if (opacity_ == opacity)
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return;
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display_opacity_ = opacity_ = std::min(std::max(opacity, 0.f), 1.f);
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UpdateOpacity();
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}
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void Node::SetPivotX(float pivot_x)
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{
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this->SetPivot(pivot_x, pivot_.y);
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}
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void Node::SetPivotY(float pivot_y)
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{
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this->SetPivot(pivot_.x, pivot_y);
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}
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void Node::SetPivot(float pivot_x, float pivot_y)
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{
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if (pivot_.x == pivot_x && pivot_.y == pivot_y)
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return;
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pivot_.x = pivot_x;
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pivot_.y = pivot_y;
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dirty_transform_ = true;
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}
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void Node::SetWidth(float width)
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{
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this->SetSize(width, size_.height);
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}
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void Node::SetHeight(float height)
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{
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this->SetSize(size_.width, height);
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}
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void Node::SetSize(const Size& size)
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{
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this->SetSize(size.width, size.height);
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}
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void Node::SetSize(float width, float height)
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{
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if (size_.width == width && size_.height == height)
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return;
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size_.width = width;
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size_.height = height;
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dirty_transform_ = true;
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}
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void Node::SetTransform(Transform const& transform)
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{
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transform_ = transform;
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dirty_transform_ = true;
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}
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void Node::SetBorderColor(Color const& color)
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{
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border_color_ = color;
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}
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void Node::SetVisible(bool val)
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{
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visible_ = val;
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}
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void Node::SetName(String const& name)
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{
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if (name_ != name)
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{
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name_ = name;
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hash_name_ = std::hash<String>{}(name);
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}
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}
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void Node::AddChild(spNode const& child, int z_order)
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{
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if (!child)
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logs::Warningln("Node::AddChild failed, child is nullptr");
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if (child)
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{
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#ifdef E2D_DEBUG
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if (child->parent_)
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logs::Errorln("The node to be added already has a parent");
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for (Node* parent = parent_; parent; parent = parent->parent_)
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if (parent == child)
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logs::Errorln("A node cannot be its own parent");
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#endif // E2D_DEBUG
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children_.PushBack(Node::ItemType(child));
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child->parent_ = this;
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child->SetScene(this->scene_);
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child->dirty_transform_ = true;
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child->SetZOrder(z_order);
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child->UpdateOpacity();
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dirty_sort_ = true;
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}
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}
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void Node::AddChild(const Nodes& nodes, int z_order)
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{
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for (const auto& node : nodes)
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{
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this->AddChild(node, z_order);
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}
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}
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Rect Node::GetBounds()
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{
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return Rect(Point{}, size_);
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}
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Node::Nodes Node::GetChildren(String const& name) const
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{
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Nodes children;
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size_t hash_code = std::hash<String>{}(name);
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for (auto child = children_.First(); child != children_.Last(); child = child->NextItem())
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{
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if (child->hash_name_ == hash_code && child->name_ == name)
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{
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children.push_back(child);
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}
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}
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return children;
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}
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spNode Node::GetChild(String const& name) const
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{
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size_t hash_code = std::hash<String>{}(name);
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for (auto child = children_.First(); child != children_.Last(); child = child->NextItem())
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{
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if (child->hash_name_ == hash_code && child->name_ == name)
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{
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return child;
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}
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}
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return nullptr;
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}
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Node::Children const & Node::GetChildren() const
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{
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return children_;
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}
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void Node::RemoveFromParent()
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{
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if (parent_)
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{
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parent_->RemoveChild(this);
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}
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}
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bool Node::RemoveChild(spNode const& child)
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{
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if (!child)
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logs::Warningln("Node::RemoveChild failed, child is nullptr");
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if (children_.IsEmpty())
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return false;
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if (child)
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{
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child->parent_ = nullptr;
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if (child->scene_) child->SetScene(nullptr);
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children_.Remove(Node::ItemType(child));
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return true;
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}
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return false;
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}
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void Node::RemoveChildren(String const& child_name)
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{
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if (children_.IsEmpty())
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{
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return;
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}
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size_t hash_code = std::hash<String>{}(child_name);
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spNode next;
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for (auto child = children_.First(); child; child = next)
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{
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next = child->NextItem();
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if (child->hash_name_ == hash_code && child->name_ == child_name)
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{
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RemoveChild(child);
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}
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}
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}
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void Node::RemoveAllChildren()
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{
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children_.Clear();
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}
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bool Node::ContainsPoint(const Point& point)
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{
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if (size_.width == 0.f || size_.height == 0.f)
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return false;
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UpdateTransform();
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cpRectangleGeometry border;
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ThrowIfFailed(
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Factory::Instance()->CreateRectangleGeometry(
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border,
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Rect(Point{}, size_)
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)
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);
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BOOL ret = 0;
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// no matter it failed or not
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border->FillContainsPoint(
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point,
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ConvertToD2DMatrix(final_matrix_),
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&ret
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);
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return !!ret;
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}
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}
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