2 * Copyright (c) 2021 Samsung Electronics Co., Ltd.
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
8 * http://www.apache.org/licenses/LICENSE-2.0
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
19 #include "canvas-view-impl.h"
22 #include <dali/devel-api/scripting/scripting.h>
23 #include <dali/integration-api/adaptor-framework/adaptor.h>
24 #include <dali/public-api/object/type-registry-helper.h>
25 #include <dali/public-api/object/type-registry.h>
28 #include <dali-toolkit/devel-api/controls/canvas-view/canvas-view.h>
29 #include <dali-toolkit/devel-api/controls/control-devel.h>
30 #include <dali-toolkit/internal/controls/control/control-data-impl.h>
31 #include <dali-toolkit/internal/graphics/builtin-shader-extern-gen.h>
32 #include <dali-toolkit/internal/visuals/visual-factory-cache.h>
46 // Setup properties, signals and actions using the type-registry.
47 DALI_TYPE_REGISTRATION_BEGIN(Toolkit::CanvasView, Toolkit::Control, Create);
48 DALI_TYPE_REGISTRATION_END()
49 } // anonymous namespace
53 CanvasView::CanvasView(const Vector2& viewBox)
54 : Control(ControlBehaviour(CONTROL_BEHAVIOUR_DEFAULT)),
55 mCanvasRenderer(CanvasRenderer::New(viewBox)),
61 CanvasView::~CanvasView()
63 if(Adaptor::IsAvailable())
65 Adaptor::Get().UnregisterProcessor(*this);
69 Toolkit::CanvasView CanvasView::New(const Vector2& viewBox)
71 CanvasView* impl = new CanvasView(viewBox);
73 Toolkit::CanvasView handle = Toolkit::CanvasView(*impl);
75 // Second-phase init of the implementation
76 // This can only be done after the CustomActor connection has been made...
82 /////////////////////////////////////////////////////////////
84 void CanvasView::OnInitialize()
86 // CanvasView can relayout in the OnImageReady, alternative to a signal would be to have a upcall from the Control to CanvasView
87 Dali::Toolkit::Control handle(GetOwner());
89 DevelControl::SetAccessibilityConstructor(Self(), [](Dali::Actor actor) {
90 return std::unique_ptr<Dali::Accessibility::Accessible>(
91 new DevelControl::AccessibleImpl(actor, Dali::Accessibility::Role::IMAGE));
94 Self().SetProperty(Toolkit::DevelControl::Property::ACCESSIBILITY_HIGHLIGHTABLE, true);
96 Adaptor::Get().RegisterProcessor(*this);
99 void CanvasView::OnRelayout(const Vector2& size, RelayoutContainer& container)
101 if(!mCanvasRenderer ||
102 mCanvasRenderer.GetSize() == size ||
103 !mCanvasRenderer.SetSize(size))
110 void CanvasView::OnSizeSet(const Vector3& targetSize)
112 Control::OnSizeSet(targetSize);
114 if(!mCanvasRenderer ||
115 mCanvasRenderer.GetSize() == Vector2(targetSize) ||
116 !mCanvasRenderer.SetSize(Vector2(targetSize)))
123 void CanvasView::Process()
132 void CanvasView::Commit()
134 if(mCanvasRenderer && mCanvasRenderer.Commit())
136 Devel::PixelBuffer pixbuf = mCanvasRenderer.GetPixelBuffer();
137 auto width = pixbuf.GetWidth();
138 auto height = pixbuf.GetHeight();
140 Dali::PixelData pixelData = Devel::PixelBuffer::Convert(pixbuf);
146 if(!mTexture || mChanged)
148 mTexture = Texture::New(TextureType::TEXTURE_2D, Dali::Pixel::RGBA8888, width, height);
149 mTexture.Upload(pixelData);
150 TextureSet textureSet = TextureSet::New();
151 textureSet.SetTexture(0, mTexture);
152 Geometry geometry = VisualFactoryCache::CreateQuadGeometry();
153 Shader shader = Shader::New(SHADER_CANVAS_VIEW_VERT, SHADER_CANVAS_VIEW_FRAG);
154 Renderer renderer = Renderer::New(geometry, shader);
155 renderer.SetTextures(textureSet);
156 renderer.SetProperty(Renderer::Property::BLEND_PRE_MULTIPLIED_ALPHA, true);
158 Self().AddRenderer(renderer);
164 mTexture.Upload(pixelData);
169 bool CanvasView::AddDrawable(Dali::CanvasRenderer::Drawable& drawable)
171 if(mCanvasRenderer && mCanvasRenderer.AddDrawable(drawable))
177 } // namespace Internal
178 } // namespace Toolkit