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("renderer-type");
41 const char * const RENDERER_TYPE_VALUE("border-renderer");
43 const char * const COLOR_NAME("border-color");
44 const char * const COLOR_UNIFORM_NAME("uBorderColor");
45 const char * const SIZE_NAME("border-size");
46 const char * const SIZE_UNIFORM_NAME("uBorderSize");
48 const char * const POSITION_ATTRIBUTE_NAME("aPosition");
49 const char * const DRIFT_ATTRIBUTE_NAME("aDrift");
50 const char * const INDEX_NAME("indices");
53 const char* VERTEX_SHADER = DALI_COMPOSE_SHADER(
54 attribute mediump vec2 aPosition;\n
55 attribute mediump vec2 aDrift;\n
56 uniform mediump mat4 uMvpMatrix;\n
57 uniform mediump vec3 uSize;\n
58 uniform mediump float uBorderSize;\n
62 vec2 position = aPosition*uSize.xy + aDrift*uBorderSize;\n
63 gl_Position = uMvpMatrix * vec4(position, 0.0, 1.0);\n
67 const char* FRAGMENT_SHADER = DALI_COMPOSE_SHADER(
68 uniform lowp vec4 uColor;\n
69 uniform lowp vec4 uBorderColor;\n
73 gl_FragColor = uBorderColor*uColor;\n
78 BorderRenderer::BorderRenderer()
80 mBorderColor( Color::TRANSPARENT ),
82 mBorderColorIndex( Property::INVALID_INDEX ),
83 mBorderSizeIndex( Property::INVALID_INDEX )
87 BorderRenderer::~BorderRenderer()
91 void BorderRenderer::DoInitialize( RendererFactoryCache& factoryCache, const Property::Map& propertyMap )
93 Initialize( factoryCache );
95 Property::Value* color = propertyMap.Find( COLOR_NAME );
96 if( !( color && color->Get(mBorderColor) ) )
98 DALI_LOG_ERROR( "Fail to provide a border color to the BorderRenderer object" );
101 Property::Value* size = propertyMap.Find( SIZE_NAME );
102 if( !( size && size->Get(mBorderSize) ) )
104 DALI_LOG_ERROR( "Fail to provide a border size to the BorderRenderer object" );
108 void BorderRenderer::SetClipRect( const Rect<int>& clipRect )
110 ControlRenderer::SetClipRect( clipRect );
112 //ToDo: renderer responds to the clipRect change
115 void BorderRenderer::DoSetOnStage( Actor& actor )
117 mBorderColorIndex = (mImpl->mRenderer).RegisterProperty( COLOR_UNIFORM_NAME, mBorderColor );
118 if( mBorderColor.a < 1.f )
120 (mImpl->mRenderer).GetMaterial().SetBlendMode( BlendingMode::ON );
122 mBorderSizeIndex = (mImpl->mRenderer).RegisterProperty( SIZE_UNIFORM_NAME, mBorderSize );
125 void BorderRenderer::DoCreatePropertyMap( Property::Map& map ) const
128 map.Insert( RENDERER_TYPE, RENDERER_TYPE_VALUE );
129 map.Insert( COLOR_NAME, mBorderColor );
130 map.Insert( SIZE_NAME, mBorderSize );
133 void BorderRenderer::Initialize( RendererFactoryCache& factoryCache)
135 mImpl->mGeometry = factoryCache.GetGeometry( RendererFactoryCache::BORDER_GEOMETRY );
136 if( !(mImpl->mGeometry) )
138 mImpl->mGeometry = CreateBorderGeometry();
139 factoryCache.SaveGeometry( RendererFactoryCache::QUAD_GEOMETRY, mImpl->mGeometry );
142 mImpl->mShader = factoryCache.GetShader( RendererFactoryCache::BORDER_SHADER );
143 if( !(mImpl->mShader) )
145 mImpl->mShader = Shader::New( VERTEX_SHADER, FRAGMENT_SHADER );
146 factoryCache.SaveShader( RendererFactoryCache::COLOR_SHADER, mImpl->mShader );
150 void BorderRenderer::SetBorderColor(const Vector4& color)
152 mBorderColor = color;
154 if( mImpl->mIsOnStage )
156 (mImpl->mRenderer).SetProperty( mBorderColorIndex, color );
157 if( color.a < 1.f && (mImpl->mRenderer).GetMaterial().GetBlendMode() != BlendingMode::ON)
159 (mImpl->mRenderer).GetMaterial().SetBlendMode( BlendingMode::ON );
164 void BorderRenderer::SetBorderSize( float size )
168 if( mImpl->mIsOnStage )
170 (mImpl->mRenderer).SetProperty( mBorderSizeIndex, size );
175 * Vertices and triangles of the border geometry:
177 * vertex position = aPosition*uSize.xy + aDrift*uBorderSize;
190 Geometry BorderRenderer::CreateBorderGeometry()
192 const float halfWidth = 0.5f;
193 const float halfHeight = 0.5f;
194 struct BorderVertex { Vector2 position; Vector2 drift;};
195 BorderVertex borderVertexData[16] =
197 { Vector2(-halfWidth, -halfHeight), Vector2(0.f, 0.f) },
198 { Vector2(-halfWidth, -halfHeight), Vector2(1.f, 0.f) },
199 { Vector2(halfWidth, -halfHeight), Vector2(-1.f, 0.f) },
200 { Vector2(halfWidth, -halfHeight), Vector2(0.f, 0.f) },
202 { Vector2(-halfWidth, -halfHeight), Vector2(0.f, 1.f) },
203 { Vector2(-halfWidth, -halfHeight), Vector2(1.f, 1.f) },
204 { Vector2(halfWidth, -halfHeight), Vector2(-1.f, 1.f) },
205 { Vector2(halfWidth, -halfHeight), Vector2(0.f, 1.f) },
207 { Vector2(-halfWidth, halfHeight), Vector2(0.f, -1.f) },
208 { Vector2(-halfWidth, halfHeight), Vector2(1.f, -1.f) },
209 { Vector2(halfWidth, halfHeight), Vector2(-1.f, -1.f) },
210 { Vector2(halfWidth, halfHeight), Vector2(0.f, -1.f) },
212 { Vector2(-halfWidth, halfHeight), Vector2(0.f, 0.f) },
213 { Vector2(-halfWidth, halfHeight), Vector2(1.f, 0.f) },
214 { Vector2(halfWidth, halfHeight), Vector2(-1.f, 0.f) },
215 { Vector2(halfWidth, halfHeight), Vector2(0.f, 0.f) },
218 Property::Map borderVertexFormat;
219 borderVertexFormat[POSITION_ATTRIBUTE_NAME] = Property::VECTOR2;
220 borderVertexFormat[DRIFT_ATTRIBUTE_NAME] = Property::VECTOR2;
221 PropertyBuffer borderVertices = PropertyBuffer::New( borderVertexFormat, 16 );
222 borderVertices.SetData(borderVertexData);
225 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 };
226 Property::Map indexFormat;
227 indexFormat[INDEX_NAME] = Property::INTEGER;
228 PropertyBuffer indices = PropertyBuffer::New( indexFormat, 24 );
229 indices.SetData(indexData);
231 // Create the geometry object
232 Geometry geometry = Geometry::New();
233 geometry.AddVertexBuffer( borderVertices );
234 geometry.SetIndexBuffer( indices );
235 geometry.SetGeometryType( Geometry::TRIANGLE_STRIP );
240 } // namespace Internal
242 } // namespace Toolkit