2 * Copyright (c) 2015 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 "border-renderer.h"
22 #include <dali/integration-api/debug.h>
25 #include <dali-toolkit/internal/controls/renderers/renderer-factory-impl.h>
26 #include <dali-toolkit/internal/controls/renderers/renderer-factory-cache.h>
27 #include <dali-toolkit/internal/controls/renderers/control-renderer-data-impl.h>
40 const char * const RENDERER_TYPE("rendererType");
41 const char * const RENDERER_TYPE_VALUE("borderRenderer");
43 const char * const COLOR_NAME("borderColor");
44 const char * const SIZE_NAME("borderSize");
46 const char * const POSITION_ATTRIBUTE_NAME("aPosition");
47 const char * const DRIFT_ATTRIBUTE_NAME("aDrift");
48 const char * const INDEX_NAME("indices");
51 const char* VERTEX_SHADER = DALI_COMPOSE_SHADER(
52 attribute mediump vec2 aPosition;\n
53 attribute mediump vec2 aDrift;\n
54 uniform mediump mat4 uMvpMatrix;\n
55 uniform mediump vec3 uSize;\n
56 uniform mediump float borderSize;\n
60 vec2 position = aPosition*uSize.xy + aDrift*borderSize;\n
61 gl_Position = uMvpMatrix * vec4(position, 0.0, 1.0);\n
65 const char* FRAGMENT_SHADER = DALI_COMPOSE_SHADER(
66 uniform lowp vec4 uColor;\n
67 uniform lowp vec4 borderColor;\n
71 gl_FragColor = borderColor*uColor;\n
76 BorderRenderer::BorderRenderer( RendererFactoryCache& factoryCache )
77 : ControlRenderer( factoryCache ),
78 mBorderColor( Color::TRANSPARENT ),
80 mBorderColorIndex( Property::INVALID_INDEX ),
81 mBorderSizeIndex( Property::INVALID_INDEX )
85 BorderRenderer::~BorderRenderer()
89 void BorderRenderer::DoInitialize( Actor& actor, const Property::Map& propertyMap )
91 Property::Value* color = propertyMap.Find( COLOR_NAME );
92 if( !( color && color->Get(mBorderColor) ) )
94 DALI_LOG_ERROR( "Fail to provide a border color to the BorderRenderer object" );
97 Property::Value* size = propertyMap.Find( SIZE_NAME );
98 if( !( size && size->Get(mBorderSize) ) )
100 DALI_LOG_ERROR( "Fail to provide a border size to the BorderRenderer object" );
104 void BorderRenderer::SetClipRect( const Rect<int>& clipRect )
106 ControlRenderer::SetClipRect( clipRect );
108 //ToDo: renderer responds to the clipRect change
111 void BorderRenderer::DoSetOnStage( Actor& actor )
113 InitializeRenderer();
115 mBorderColorIndex = (mImpl->mRenderer).RegisterProperty( COLOR_NAME, mBorderColor );
116 if( mBorderColor.a < 1.f )
118 (mImpl->mRenderer).GetMaterial().SetBlendMode( BlendingMode::ON );
120 mBorderSizeIndex = (mImpl->mRenderer).RegisterProperty( SIZE_NAME, mBorderSize );
123 void BorderRenderer::DoCreatePropertyMap( Property::Map& map ) const
126 map.Insert( RENDERER_TYPE, RENDERER_TYPE_VALUE );
127 map.Insert( COLOR_NAME, mBorderColor );
128 map.Insert( SIZE_NAME, mBorderSize );
131 void BorderRenderer::InitializeRenderer()
133 Geometry geometry = mFactoryCache.GetGeometry( RendererFactoryCache::BORDER_GEOMETRY );
136 geometry = CreateBorderGeometry();
137 mFactoryCache.SaveGeometry( RendererFactoryCache::BORDER_GEOMETRY, geometry );
140 Shader shader = mFactoryCache.GetShader( RendererFactoryCache::BORDER_SHADER );
143 shader = Shader::New( VERTEX_SHADER, FRAGMENT_SHADER );
144 mFactoryCache.SaveShader( RendererFactoryCache::BORDER_SHADER, shader );
147 Material material = Material::New( shader );
148 mImpl->mRenderer = Renderer::New( geometry, material );
151 void BorderRenderer::SetBorderColor(const Vector4& color)
153 mBorderColor = color;
155 if( mImpl->mRenderer )
157 (mImpl->mRenderer).SetProperty( mBorderColorIndex, color );
158 if( color.a < 1.f && (mImpl->mRenderer).GetMaterial().GetBlendMode() != BlendingMode::ON)
160 (mImpl->mRenderer).GetMaterial().SetBlendMode( BlendingMode::ON );
165 void BorderRenderer::SetBorderSize( float size )
169 if( mImpl->mRenderer )
171 (mImpl->mRenderer).SetProperty( mBorderSizeIndex, size );
176 * Vertices and triangles of the border geometry:
178 * vertex position = aPosition*uSize.xy + aDrift*uBorderSize;
191 Geometry BorderRenderer::CreateBorderGeometry()
193 const float halfWidth = 0.5f;
194 const float halfHeight = 0.5f;
195 struct BorderVertex { Vector2 position; Vector2 drift;};
196 BorderVertex borderVertexData[16] =
198 { Vector2(-halfWidth, -halfHeight), Vector2(0.f, 0.f) },
199 { Vector2(-halfWidth, -halfHeight), Vector2(1.f, 0.f) },
200 { Vector2(halfWidth, -halfHeight), Vector2(-1.f, 0.f) },
201 { Vector2(halfWidth, -halfHeight), Vector2(0.f, 0.f) },
203 { Vector2(-halfWidth, -halfHeight), Vector2(0.f, 1.f) },
204 { Vector2(-halfWidth, -halfHeight), Vector2(1.f, 1.f) },
205 { Vector2(halfWidth, -halfHeight), Vector2(-1.f, 1.f) },
206 { Vector2(halfWidth, -halfHeight), Vector2(0.f, 1.f) },
208 { Vector2(-halfWidth, halfHeight), Vector2(0.f, -1.f) },
209 { Vector2(-halfWidth, halfHeight), Vector2(1.f, -1.f) },
210 { Vector2(halfWidth, halfHeight), Vector2(-1.f, -1.f) },
211 { Vector2(halfWidth, halfHeight), Vector2(0.f, -1.f) },
213 { Vector2(-halfWidth, halfHeight), Vector2(0.f, 0.f) },
214 { Vector2(-halfWidth, halfHeight), Vector2(1.f, 0.f) },
215 { Vector2(halfWidth, halfHeight), Vector2(-1.f, 0.f) },
216 { Vector2(halfWidth, halfHeight), Vector2(0.f, 0.f) },
219 Property::Map borderVertexFormat;
220 borderVertexFormat[POSITION_ATTRIBUTE_NAME] = Property::VECTOR2;
221 borderVertexFormat[DRIFT_ATTRIBUTE_NAME] = Property::VECTOR2;
222 PropertyBuffer borderVertices = PropertyBuffer::New( borderVertexFormat, 16 );
223 borderVertices.SetData(borderVertexData);
226 unsigned int indexData[24] = { 0,4,1,5,2,6,3,7,7,6,11,10,15,14,14,10,13,9,12,8,8,9,4,5 };
227 Property::Map indexFormat;
228 indexFormat[INDEX_NAME] = Property::INTEGER;
229 PropertyBuffer indices = PropertyBuffer::New( indexFormat, 24 );
230 indices.SetData(indexData);
232 // Create the geometry object
233 Geometry geometry = Geometry::New();
234 geometry.AddVertexBuffer( borderVertices );
235 geometry.SetIndexBuffer( indices );
236 geometry.SetGeometryType( Geometry::TRIANGLE_STRIP );
241 } // namespace Internal
243 } // namespace Toolkit