6 Visuals provide reusable rendering logic which can be used by all controls.
7 This means that custom controls do not have to create actors, they can just reuse the existing visuals which increases performance.
9 Visuals reuse geometry, shaders etc. across controls and manages the renderer and texture to exist only when the control is on-stage.
10 Additionally, they respond to actor size and color change, while also providing clipping at the renderer level.
12 DALi provides the following visuals:
13 + [Color](@ref color-visual)
14 + [Gradient](@ref gradient-visual)
15 + [Image](@ref image-visuals)
16 + [Border](@ref border-visual)
17 + [Mesh](@ref mesh-visual)
18 + [Primitive](@ref primitive-visual)
19 + [Text](@ref text-visual)
20 + [Wireframe](@ref wireframe-visual)
22 Controls can provide properties that allow users to specify the visual type ( visualType ).
23 Setting visual properties are done via a property map.
24 The **visualType** field in the property map specifies the visual to use/create.
25 This is required to avoid ambiguity as multiple visuals may be capable of rendering the same contents.
27 Visuals have a **transform** field in the property map to allow layouting within a control. If this field is not set, then the visual defaults to filling the control. The **transform** field has a property map with the following keys:
29 | Property | String | Type | Required | Description |
30 |-------------------------------------------------|----------|:-------:|:--------:|---------------------------|
31 | Dali::Toolkit::Visual::Transform::Property::OFFSET | offset | VECTOR2 | No | The offset of the visual. |
32 | Dali::Toolkit::Visual::Transform::Property::SIZE | size | VECTOR2 | No | The size of the visual. |
33 | Dali::Toolkit::Visual::Transform::Property::OFFSET_SIZE_MODE | offsetSizeMode | VECTOR4 | No | Whether the size or offset components are Relative or Absolute [More info](@ref offset-size-mode)|
34 | Dali::Toolkit::Visual::Transform::Property::ORIGIN | origin | INTEGER or STRING | No | The origin of the visual within the control's area. [More info](@ref align-type) |
35 | Dali::Toolkit::Visual::Transform::Property::ANCHOR_POINT | anchorPoint | INTEGER or STRING | No | The anchor point of the visual. [More info](@ref align-type)|
38 ## Offset & size modes {#offset-size-mode}
40 The offset and size modes can be either Relative or Absolute. The offset modes are in the x and y components of the offsetSizeMode property, and map to the offset's x and y components respectively. The size modes are in the z and w components of the offsetSizeMode property, and map to the size's x and y components, respectively.
42 A mode value of 0 represents a Relative mode, in which case the size or offset value represents a ratio of the control's size. A mode value of 1 represents an Absolute mode, in which case the size or offset value represents world units (pixels).
44 For example, an offsetSizeMode of [0, 0, 1, 1], an offset of (0, 0.25) and a size of (20, 20) means the visual will be 20 pixels by 20 pixels in size, positioned 25% above the center of the control.
47 ## Alignment {#align-type}
48 | Enumeration | String | Description |
49 |------------------------------------------------------|---------|------------------------------------------------------------------------------------------------------|
50 | Dali::Toolkit::Align::TOP_BEGIN | TOP_BEGIN | Aligns to the top of the vertical axis and the beginning of the horizontal axis (The left or right edge in Left-To-Right or Right-to-Left layouts, respectively) |
51 | Dali::Toolkit::Align::TOP_CENTER | TOP_CENTER | Aligns to the top of the vertical axis and the center of the horizontal axis |
52 | Dali::Toolkit::Align::TOP_END | TOP_END | Aligns to the top of the vertical axis and end of the horizontal axis (The right or left edge in Left-To-Right or Right-to-Left layouts, respectively) |
53 | Dali::Toolkit::Align::CENTER_BEGIN | CENTER_BEGIN | Aligns to the center of the vertical axis and the beginning of the horizontal axis|
54 | Dali::Toolkit::Align::CENTER | CENTER | Aligns to the center of the control |
55 | Dali::Toolkit::Align::CENTER_END | CENTER_END | Aligns to the center of the vertical axis and end of the horizontal axis |
56 | Dali::Toolkit::Align::BOTTOM_BEGIN | BOTTOM_BEGIN | Aligns to the bottom of the vertical axis and the beginning of the horizontal axis|
57 | Dali::Toolkit::Align::BOTTOM_CENTER | BOTTOM_CENTER | Aligns to the bottom of the vertical axis and the center of the horizontal axis
58 | Dali::Toolkit::Align::BOTTOM_END | BOTTOM_END | Aligns to the bottom of the vertical axis and end of the horizontal axis |
60 Visuals also have a custom **shader** property. Whilst it's possible to change the shader, please note that some visuals rely on the vertex shader to perform certain functions. For example, the NPatch visual uses the vertex shader to perform the stretching. The **shader** property is a Property::Map with the following keys:
63 | Property | String | Type | Required | Description |
64 |-------------------------------------------------|----------|:-------:|:--------:|---------------------------|
65 | Dali::Toolkit::Visual::Shader::Property::VERTEX_SHADER | vertexShader | STRING | No | The vertex shader code. |
66 | Dali::Toolkit::Visual::Shader::Property::FRAGMENT_SHADER | fragmentShader | STRING | No | The fragment shader code. |
67 | Dali::Toolkit::Visual::Shader::Property::SUBDIVIDE_GRID_X | subdivideGridX | INTEGER | No | How to subdivide the grid along the X-Axis. Defaults to 1 |
68 | Dali::Toolkit::Visual::Shader::Property::SUBDIVIDE_GRID_Y | subdivideGridY | INTEGER | No | How to subdivide the grid along the Y-Axis. Defaults to 1 |
69 | Dali::Toolkit::Visual::Shader::Property::HINTS | hints | INTEGER or ARRAY of STRING | No | Shader hints bitmask [More info](@ref shader-hints) |
71 ## Shader hints {#shader-hints}
73 This is a bitmask giving hints to the renderer about what the shader does, in order to help the rendering system optimise it's rendering.
75 The bitmask can have the following values:
77 | Value | Description |
78 |-------------------------------------------|----------------------------------------|
79 | Dali::Shader::Hint::NONE | No hints |
80 | Dali::Shader::Hint::OUTPUT_IS_TRANSPARENT | Might generate transparent alpha from opaque inputs |
81 | Dali::Shader::Hint::MODIFIES_GEOMETRY | Might change the position of vertices - this disables culling optimizations |
84 See also Dali::Shader::Hint::Value enumeration.
86 ___________________________________________________________________________________________________
88 ## Color Visual {#color-visual}
90 Renders a color to the visual's quad geometry.
92 ![ ](../assets/img/visuals/color-visual.png)
93 ![ ](visuals/color-visual.png)
95 ### Properties Supported
97 **VisualType:** Dali::Toolkit::Visual::COLOR, "COLOR"
99 | Property | String | Type | Required | Description |
100 |-------------------------------------------------|----------|:-------:|:--------:|---------------------------|
101 | Dali::Toolkit::ColorVisual::Property::MIX_COLOR | mixColor | VECTOR4 | Yes | The color required. |
107 Dali::Toolkit::Control control = Dali::Toolkit::Control::New();
109 Dali::Property::Map map;
110 map[ Visual::Property::TYPE ] = Dali::Toolkit::Visual::COLOR;
111 map[ ColorVisual::Property::MIX_COLOR ] = Color::RED;
113 control.SetProperty( Control::Property::BACKGROUND, map );
118 var control = new dali.Control( "Control" );
122 visualType : "COLOR",
123 mixColor : dali.COLOR_RED
126 ___________________________________________________________________________________________________
128 ## Gradient Visual {#gradient-visual}
130 Renders a smooth transition of colors to the visual's quad geometry.
132 Both Linear and Radial gradients are supported.
136 | ![ ](../assets/img/visuals/linear-gradient-visual.png) ![ ](visuals/linear-gradient-visual.png) | ![ ](../assets/img/visuals/radial-gradient-visual.png) ![ ](visuals/radial-gradient-visual.png) |
138 ### Properties Supported
140 **VisualType:** Dali::Toolkit::Visual::GRADIENT, "GRADIENT"
142 | Property | String | Type | Required | Description |
143 |---------------------------------------------------------|---------------|:-----------------:|:----------:|------------------------------------------------------------------------------------------------------------------|
144 | Dali::Toolkit::GradientVisual::Property::START_POSITION | startPosition | VECTOR2 | For Linear | The start position of the linear gradient. |
145 | Dali::Toolkit::GradientVisual::Property::END_POSITION | endPosition | VECTOR2 | For Linear | The end position of the linear gradient. |
146 | Dali::Toolkit::GradientVisual::Property::CENTER | center | VECTOR2 | For Radial | The center point of the gradient. |
147 | Dali::Toolkit::GradientVisual::Property::RADIUS | radius | FLOAT | For Radial | The size of the radius. |
148 | Dali::Toolkit::GradientVisual::Property::STOP_OFFSET | stopOffset | ARRAY of FLOAT | No | All the stop offsets. If not supplied default is 0.0 and 1.0. |
149 | Dali::Toolkit::GradientVisual::Property::STOP_COLOR | stopColor | ARRAY of VECTOR4 | Yes | The color at those stop offsets. At least 2 required to show a gradient. |
150 | Dali::Toolkit::GradientVisual::Property::UNITS | units | INTEGER or STRING | No | Defines the coordinate system. [More info](@ref gradient-visual-units) |
151 | Dali::Toolkit::GradientVisual::Property::SPREAD_METHOD | spreadMethod | INTEGER or STRING | No | Indicates what happens if gradient starts or ends inside bounds. [More info](@ref gradient-visual-spread-method) |
153 If the *stopOffset* and *stopColor* arrays do not have the same number of elements, then the minimum of the two is used as the stop points.
155 ### Units {#gradient-visual-units}
157 Defines the coordinate system for the attributes:
158 + Start (x1, y1) and End (x2 and y2) points of a line if using a linear gradient.
159 + Center point (cx, cy) and radius (r) of a circle if using a radial gradient.
161 | Enumeration | String | Description |
162 |-----------------------------------------------------------|---------------------|------------------------------------------------------------------------------------------------------------------------------------------------|
163 | Dali::Toolkit::GradientVisual::Units::OBJECT_BOUNDING_BOX | OBJECT_BOUNDING_BOX | *Default*. Uses the normals for the start, end & center points, i.e. top-left is (-0.5, -0.5) and bottom-right is (0.5, 0.5). |
164 | Dali::Toolkit::GradientVisual::Units::USER_SPACE | USER_SPACE | Uses the user coordinates for the start, end & center points, i.e. in a 200 by 200 control, top-left is (0, 0) and bottom-right is (200, 200). |
166 ### Spread Method {#gradient-visual-spread-method}
168 Indicates what happens if the gradient starts or ends inside the bounds of the target rectangle.
170 | Enumeration | String | Description |
171 |------------------------------------------------------|---------|------------------------------------------------------------------------------------------------------|
172 | Dali::Toolkit::GradientVisual::SpreadMethod::PAD | PAD | *Default*. Uses the terminal colors of the gradient to fill the remainder of the quad geometry. |
173 | Dali::Toolkit::GradientVisual::SpreadMethod::REFLECT | REFLECT | Reflect the gradient pattern start-to-end, end-to-start, start-to-end etc. until the quad geometry is filled. |
174 | Dali::Toolkit::GradientVisual::SpreadMethod::REPEAT | REPEAT | Repeat the gradient pattern start-to-end, start-to-end, start-to-end etc. until the quad geometry is filled. |
181 Dali::Toolkit::Control control = Dali::Toolkit::Control::New();
183 Dali::Property::Map map;
184 map[ Visual::Property::TYPE ] = Dali::Toolkit::Visual::GRADIENT;
185 map[ GradientVisual::Property::START_POSITION ] = Vector2( 0.5f, 0.5f );
186 map[ GradientVisual::Property::END_POSITION ] = Vector2( -0.5f, -0.5f );
188 Dali::Property::Array stopOffsets;
189 stopOffsets.PushBack( 0.0f );
190 stopOffsets.PushBack( 0.3f );
191 stopOffsets.PushBack( 0.6f );
192 stopOffsets.PushBack( 0.8f );
193 stopOffsets.PushBack( 1.f );
194 map[ GradientVisual::Property::STOP_OFFSET ] = stopOffsets;
196 Dali::Property::Array stopColors;
197 stopColors.PushBack( Vector4( 129.f, 198.f, 193.f, 255.f )/255.f );
198 stopColors.PushBack( Vector4( 196.f, 198.f, 71.f, 122.f )/255.f );
199 stopColors.PushBack( Vector4( 214.f, 37.f, 139.f, 191.f )/255.f );
200 stopColors.PushBack( Vector4( 129.f, 198.f, 193.f, 150.f )/255.f );
201 stopColors.PushBack( Color::YELLOW );
202 map[ GradientVisual::Property::STOP_COLOR ] = stopColors;
204 control.SetProperty( Control::Property::BACKGROUND, map );
209 var control = new dali.Control( "Control" );
213 visualType : "GRADIENT",
214 startPosition : [ 0.5, 0.5 ],
215 endPosition : [ -0.5, -0.5 ],
216 stopOffset : [ 0.0, 0.3, 0.6, 0.8, 1.0 ],
218 [ 129 / 255, 198 / 255, 193 / 255, 255 / 255 ],
219 [ 196 / 255, 198 / 255, 71 / 255, 122 / 255 ],
220 [ 214 / 255, 37 / 255, 139 / 255, 191 / 255 ],
221 [ 129 / 255, 198 / 255, 193 / 255, 150 / 255 ],
230 Dali::Toolkit::Control control = Dali::Toolkit::Control::New();
232 Dali::Property::Map map;
233 map[ Visual::Property::TYPE ] = Dali::Toolkit::Visual::GRADIENT;
234 map[ GradientVisual::Property::CENTER ] = Vector2( 0.5f, 0.5f );
235 map[ GradientVisual::Property::RADIUS ] = 1.414f;
237 Dali::Property::Array stopOffsets;
238 stopOffsets.PushBack( 0.0f );
239 stopOffsets.PushBack( 0.3f );
240 stopOffsets.PushBack( 0.6f );
241 stopOffsets.PushBack( 0.8f );
242 stopOffsets.PushBack( 1.f );
243 map[ GradientVisual::Property::STOP_OFFSET ] = stopOffsets;
245 Dali::Property::Array stopColors;
246 stopColors.PushBack( Vector4( 129.f, 198.f, 193.f, 255.f )/255.f );
247 stopColors.PushBack( Vector4( 196.f, 198.f, 71.f, 122.f )/255.f );
248 stopColors.PushBack( Vector4( 214.f, 37.f, 139.f, 191.f )/255.f );
249 stopColors.PushBack( Vector4( 129.f, 198.f, 193.f, 150.f )/255.f );
250 stopColors.PushBack( Color::YELLOW );
251 map[ GradientVisual::Property::STOP_COLOR ] = stopColors;
253 control.SetProperty( Control::Property::BACKGROUND, map );
258 var control = new dali.Control( "Control" );
262 visualType : "GRADIENT",
263 center : [ 0.5, 0.5 ],
265 stopOffset : [ 0.0, 0.3, 0.6, 0.8, 1.0 ],
267 [ 129 / 255, 198 / 255, 193 / 255, 255 / 255 ],
268 [ 196 / 255, 198 / 255, 71 / 255, 122 / 255 ],
269 [ 214 / 255, 37 / 255, 139 / 255, 191 / 255 ],
270 [ 129 / 255, 198 / 255, 193 / 255, 150 / 255 ],
275 ___________________________________________________________________________________________________
277 ## Image Visual {#image-visuals}
279 Renders an image into the visual's geometry.
281 Depending on the extension of the image, a different visual is provided to render the image onto the screen.
283 + [Normal (Quad)](@ref image-visual)
284 + [N-Patch](@ref n-patch-visual)
285 + [SVG](@ref svg-visual)
286 + [Animated Image]( @ref animated-image-visual )
288 ___________________________
290 ### Normal {#image-visual}
292 Renders a raster image ( jpg, png etc.) into the visual's quad geometry.
294 ![ ](../assets/img/visuals/image-visual.png)
295 ![ ](visuals/image-visual.png)
297 #### Properties Supported
299 **VisualType:** Dali::Toolkit::Visual::IMAGE, "IMAGE"
301 | Property | String | Type | Required | Description |
302 |------------------------------------------------------|---------------|:-----------------:|:--------:|--------------------------------------------------------------------------------------------------------------------------|
303 | Dali::Toolkit::ImageVisual::Property::URL | url | STRING | Yes | The URL of the image. |
304 | Dali::Toolkit::ImageVisual::Property::FITTING_MODE | fittingMode | INTEGER or STRING | No | Fitting options, used when resizing images to fit desired dimensions. [More info](@ref resourceimagescaling-fittingmode) |
305 | Dali::Toolkit::ImageVisual::Property::SAMPLING_MODE | samplingMode | INTEGER or STRING | No | Filtering options, used when resizing images to sample original pixels. [More info](@ref resourceimagescaling-scaling) |
306 | Dali::Toolkit::ImageVisual::Property::DESIRED_WIDTH | desiredWidth | INT | No | The desired image width. Will use actual image width if not specified. |
307 | Dali::Toolkit::ImageVisual::Property::DESIRED_HEIGHT | desiredHeight | INT | No | The desired image height. Will use actual image height if not specified. |
308 | Dali::Toolkit::ImageVisual::Property::PIXEL_AREA | pixelArea | VECTOR4 | No | The image area to be displayed, default value is [0.0, 0.0, 1.0, 1.0] |
309 | Dali::Toolkit::ImageVisual::Property::WRAP_MODE_U | wrapModeU | INTEGER or STRING | No | Wrap mode for u coordinate, valid values are CLAMP_TO_EDGE(default), REPEAT, MIRRORED_REPEAT |
310 | Dali::Toolkit::ImageVisual::Property::WRAP_MODE_V | wrapModeV | INTEGER or STRING | No | Wrap mode for v coordinate, valid values are CLAMP_TO_EDGE(default), REPEAT, MIRRORED_REPEAT |
316 Dali::Toolkit::Control control = Dali::Toolkit::Control::New();
318 Dali::Property::Map map;
319 map[ Visual::Property::TYPE ] = Dali::Toolkit::Visual::IMAGE;
320 map[ ImageVisual::Property::URL ] = "path-to-image.jpg";
322 control.SetProperty( Control::Property::BACKGROUND, map );
327 var control = new dali.Control( "Control" );
331 visualType : "IMAGE",
332 url : "path-to-image.jpg"
335 ___________________________________________________________________________________________________
337 ### N-Patch {#n-patch-visual}
339 Renders an n-patch or a 9-patch image. Uses non-quad geometry. Both geometry and texture are cached to reduce memory consumption if the same n-patch image is used elsewhere.
341 ![ ](../assets/img/visuals/n-patch-visual.png)
342 ![ ](visuals/n-patch-visual.png)
344 #### Properties Supported
346 **VisualType:** Dali::Toolkit::Visual::IMAGE, "IMAGE"
348 | Property | String | Type | Required | Description |
349 |---------------------------------------------------|---------------|:-------:|:--------:|----------------------------------|
350 | Dali::Toolkit::ImageVisual::Property::URL | url | STRING | Yes | The URL of the n-patch image. |
351 | Dali::Toolkit::ImageVisual::Property::BORDER_ONLY | borderOnly | BOOLEAN | No | If true, only draws the borders. |
357 Dali::Toolkit::Control control = Dali::Toolkit::Control::New();
359 Dali::Property::Map map;
361 map[ Visual::Property::TYPE ] = Dali::Toolkit::Visual::IMAGE;
362 map[ Dali::Toolkit::ImageVisual::Property::URL ] = "path-to-image.9.png";
364 control.SetProperty( Control::Property::BACKGROUND, map );
369 var control = new dali.Control( "Control" );
373 visualType : "IMAGE",
374 url : "path-to-image.9.png"
378 ___________________________________________________________________________________________________
380 ### SVG {#svg-visual}
382 Renders a svg image into the visual's quad geometry.
384 #### Features: SVG Tiny 1.2 specification
391 * gradient color fill
396 * gradient color stroke
402 <div style="width:300px">
404 ![ ](../assets/img/visuals/svg-visual.svg)
408 <div style="width:300px">
410 ![ ](visuals/svg-visual.svg)
415 #### Properties Supported
417 **VisualType:** Dali::Toolkit::Visual::IMAGE, "IMAGE"
419 | Property | String | Type | Required | Description |
420 |-------------------------------------------|--------|:-------:|:--------:|----------------------------------|
421 | Dali::Toolkit::ImageVisual::Property::URL | url | STRING | Yes | The URL of the SVG image. |
427 Dali::Toolkit::Control control = Dali::Toolkit::Control::New();
429 Dali::Property::Map map;
431 map[ Visual::Property::TYPE ] = Dali::Toolkit::Visual::IMAGE;
432 map[ Dali::Toolkit::ImageVisual::Property::URL ] = "path-to-image.svg";
434 control.SetSize( 200.f, 200.f );
435 control.SetProperty( Control::Property::BACKGROUND, map );
440 var control = new dali.Control( "Control" );
444 visualType : "IMAGE",
445 url : "path-to-image.svg"
449 ___________________________________________________________________________________________________
451 ## Animated Image Visual {#animated-image-visual}
453 Renders an animated image into the visual's quad geometry. Currently, only the GIF format is supported.
455 ![ ](../assets/img/visuals/animated-image-visual.gif)
456 ![ ](animated-image-visual.gif)
458 #### Properties Supported
460 **VisualType:** Dali::Toolkit::Visual::IMAGE, "IMAGE"
462 | Property | String | Type | Required | Description |
463 |---------------------------------------------------|------------|:-----------------:|:--------:|----------------------------------------------------------------------------------------------|
464 | Dali::Toolkit::ImageVisual::Property::URL | url | STRING | Yes | The URL of the animated image. |
465 | Dali::Toolkit::ImageVisual::Property::PIXEL_AREA | pixelArea | VECTOR4 | No | The image area to be displayed, default value is [0.0, 0.0, 1.0, 1.0] |
466 | Dali::Toolkit::ImageVisual::Property::WRAP_MODE_U | wrapModeU | INTEGER or STRING | No | Wrap mode for u coordinate, valid values are CLAMP_TO_EDGE(default), REPEAT, MIRRORED_REPEAT |
467 | Dali::Toolkit::ImageVisual::Property::WRAP_MODE_V | wrapModeV | INTEGER or STRING | No | Wrap mode for v coordinate, valid values are CLAMP_TO_EDGE(default), REPEAT, MIRRORED_REPEAT |
473 Dali::Toolkit::Control control = Dali::Toolkit::Control::New();
475 control.SetProperty( Control::Property::BACKGROUND,
476 Property::Map().Add( Visual::Property::TYPE, Dali::Toolkit::Visual::IMAGE )
477 .Add( Dali::Toolkit::ImageVisual::Property::URL, "path-to-image.gif" ) );
482 var control = new dali.Control( "Control" );
486 visualType : "IMAGE",
487 url : "path-to-image.gif"
490 ___________________________________________________________________________________________________
492 ## Border Visual {#border-visual}
494 Renders a color as an internal border to the visual's geometry.
496 ![ ](../assets/img/visuals/border-visual.png)
497 ![ ](visuals/border-visual.png)
499 ### Properties Supported
501 **VisualType:** Dali::Toolkit::Visual::BORDER, "BORDER"
503 | Property | String | Type | Required | Description |
504 |------------------------------------------------------|---------------|:-------:|:--------:|--------------------------------------------------|
505 | Dali::Toolkit::BorderVisual::Property::COLOR | borderColor | VECTOR4 | Yes | The color of the border. |
506 | Dali::Toolkit::BorderVisual::Property::SIZE | borderSize | FLOAT | Yes | The width of the border (in pixels). |
507 | Dali::Toolkit::BorderVisual::Property::ANTI_ALIASING | antiAliasing | BOOLEAN | No | Whether anti-aliasing of the border is required. |
513 Dali::Toolkit::Control control = Dali::Toolkit::Control::New();
515 Dali::Property::Map map;
517 map[ Visual::Property::TYPE ] = Dali::Toolkit::Visual::BORDER;
518 map[ BorderVisual::Property::COLOR ] = Color::BLUE;
519 map[ BorderVisual::Property::SIZE ] = 5.0f;
521 control.SetProperty( Control::Property::BACKGROUND, map );
526 var control = new dali.Control( "Control" );
530 visualType : "BORDER",
531 borderColor : dali.COLOR_BLUE,
536 ___________________________________________________________________________________________________
538 ## Mesh Visual {#mesh-visual}
540 Renders a mesh using a .obj file, optionally with textures provided by a mtl file. Scaled to fit the control.
542 ![ ](../assets/img/visuals/mesh-visual.png)
543 ![ ](visuals/mesh-visual.png)
545 ### Properties Supported
547 **VisualType:** Dali::Toolkit::Visual::MESH, "MESH"
549 | Property | String | Type | Required | Description |
550 |-------------------------------------------------------|----------------|:------------------:|:-----------------:|--------------------------------------------------------------------------------------------------|
551 | Dali::Toolkit::MeshVisual::Property::OBJECT_URL | objectUrl | STRING | Yes | The location of the ".obj" file. |
552 | Dali::Toolkit::MeshVisual::Property::MATERIAL_URL | materialUrl | STRING | No | The location of the ".mtl" file. Leave blank for a textureless object. |
553 | Dali::Toolkit::MeshVisual::Property::TEXTURES_PATH | texturesPath | STRING | If using material | Path to the directory the textures (including gloss and normal) are stored in. |
554 | Dali::Toolkit::MeshVisual::Property::SHADING_MODE | shadingMode | INTEGER or STRING | No | Sets the type of shading mode that the mesh will use. [More info](@ref mesh-visual-shading-mode) |
555 | Dali::Toolkit::MeshVisual::Property::USE_MIPMAPPING | useMipmapping | BOOLEAN | No | Flag for whether to use mipmaps for textures or not. Default true. |
556 | Dali::Toolkit::MeshVisual::Property::USE_SOFT_NORMALS | useSoftNormals | BOOLEAN | No | Flag for whether to average normals at each point to smooth textures or not. Default true. |
557 | Dali::Toolkit::MeshVisual::Property::LIGHT_POSITION | lightPosition | VECTOR3 | No | The position, in stage space, of the point light that applies lighting to the model. |
559 ### Shading Mode {#mesh-visual-shading-mode}
561 When specifying the shading mode, if anything the mode requires is missing, a simpler mode that can be handled with what has been supplied will be used instead.
565 | Enumeration | String | Description |
566 |---------------------------------------------------------------------------------|------------------------------------------|-------------------------------------------------------------------------------------------------------------------------|
567 | Dali::Toolkit::MeshVisual::ShaderType::TEXTURELESS_WITH_DIFFUSE_LIGHTING | TEXTURELESS_WITH_DIFFUSE_LIGHTING | *Simplest*. One color that is lit by ambient and diffuse lighting. |
568 | Dali::Toolkit::MeshVisual::ShaderType::TEXTURED_WITH_SPECULAR_LIGHTING | TEXTURED_WITH_SPECULAR_LIGHTING | Uses only the visual image textures provided with specular lighting in addition to ambient and diffuse lighting. |
569 | Dali::Toolkit::MeshVisual::ShaderType::TEXTURED_WITH_DETAILED_SPECULAR_LIGHTING | TEXTURED_WITH_DETAILED_SPECULAR_LIGHTING | Uses all textures provided including a gloss, normal and texture map along with specular, ambient and diffuse lighting. |
575 Dali::Stage stage = Dali::Stage::GetCurrent();
576 Dali::Toolkit::Control control = Dali::Toolkit::Control::New();
578 Dali::Property::Map map;
580 map[ Visual::Property::TYPE ] = Dali::Toolkit::Visual::MESH;
581 map[ MeshVisual::Property::OBJECT_URL ] = "home/models/Dino.obj";
582 map[ MeshVisual::Property::MATERIAL_URL ] = "home/models/Dino.mtl";
583 map[ MeshVisual::Property::TEXTURES_PATH ] = "home/images/";
585 control.SetProperty( Control::Property::BACKGROUND, map );
588 ___________________________________________________________________________________________________
590 ## Primitive Visual {#primitive-visual}
592 Renders a simple 3D shape, such as a cube or sphere. Scaled to fit the control.
594 The shapes are generated with clockwise winding and back-face culling on by default.
596 ![ ](../assets/img/visuals/cube.png)
597 ![ ](visuals/cube.png)
599 ### Properties Supported
601 **VisualType:** Dali::Toolkit::Visual::PRIMITIVE, "PRIMITIVE"
603 | Property | String | Type | Description | Default Value | Range |
604 |---------------------------------------------------------------|-------------------|:------------------:|-----------------------------------------------------------------------------------------------------------------|:-------------------------------------------------------:|:------------------------------:|
605 | Dali::Toolkit::PrimitiveVisual::Property::SHAPE | shape | INTEGER or STRING | The specific shape to render. [More info](@ref shape-details) | Dali::Toolkit::PrimitiveVisual::Shape::SPHERE, "SPHERE" | [See list](@ref shape-details) |
606 | Dali::Toolkit::PrimitiveVisual::Property::MIX_COLOR | mixColor | VECTOR4 | The color of the shape. | (0.5, 0.5, 0.5, 1.0) | 0.0 - 1.0 for each |
607 | Dali::Toolkit::PrimitiveVisual::Property::SLICES | slices | INTEGER | The number of slices as you go around the shape. [More info](@ref slices-details) | 128 | 1 - 255 |
608 | Dali::Toolkit::PrimitiveVisual::Property::STACKS | stacks | INTEGER | The number of stacks as you go down the shape. [More info](@ref stacks-details) | 128 | 1 - 255 |
609 | Dali::Toolkit::PrimitiveVisual::Property::SCALE_TOP_RADIUS | scaleTopRadius | FLOAT | The scale of the radius of the top circle of a conical frustrum. | 1.0 | ≥ 0.0 |
610 | Dali::Toolkit::PrimitiveVisual::Property::SCALE_BOTTOM_RADIUS | scaleBottomRadius | FLOAT | The scale of the radius of the bottom circle of a conical frustrum. | 1.5 | ≥ 0.0 |
611 | Dali::Toolkit::PrimitiveVisual::Property::SCALE_HEIGHT | scaleHeight | FLOAT | The scale of the height of a conic. | 3.0 | > 0.0 |
612 | Dali::Toolkit::PrimitiveVisual::Property::SCALE_RADIUS | scaleRadius | FLOAT | The scale of the radius of a cylinder. | 1.0 | > 0.0 |
613 | Dali::Toolkit::PrimitiveVisual::Property::SCALE_DIMENSIONS | scaleDimensions | VECTOR3 | The dimensions of a cuboid. Scales in the same fashion as a 9-patch image. | Vector3::ONE | > 0.0 for each |
614 | Dali::Toolkit::PrimitiveVisual::Property::BEVEL_PERCENTAGE | bevelPercentage | FLOAT | Determines how bevelled the cuboid should be, based off the smallest dimension. [More info](@ref bevel-details) | 0.0 (no bevel) | 0.0 - 1.0 |
615 | Dali::Toolkit::PrimitiveVisual::Property::BEVEL_SMOOTHNESS | bevelSmoothness | FLOAT | Defines how smooth the bevelled edges should be. | 0.0 (sharp edges) | 0.0 - 1.0 |
616 | Dali::Toolkit::PrimitiveVisual::Property::LIGHT_POSITION | lightPosition | VECTOR3 | The position, in stage space, of the point light that applies lighting to the model. | (Offset outwards from the center of the screen.) | Unlimited |
618 ### Shapes {#shape-details}
620 There are six shapes that can be chosen, some of which are simplified specialisations of another.
622 | Enumeration | String | Description | Parameters |
623 |---------------------------------------------------------|------------------|-----------------------------------------------------------------------------------|---------------------------------------------------------------|
624 | Dali::Toolkit::PrimitiveVisual::Shape::SPHERE | SPHERE | *Default*. | color, slices, stacks |
625 | Dali::Toolkit::PrimitiveVisual::Shape::CONICAL_FRUSTRUM | CONICAL_FRUSTRUM | The area bound between two circles, i.e. a cone with the tip removed. | color, scaleTopRadius, scaleBottomRadius, scaleHeight, slices |
626 | Dali::Toolkit::PrimitiveVisual::Shape::CONE | CONE | Equivalent to a conical frustrum with top radius of zero. | color, scaleBottomRadius, scaleHeight, slices |
627 | Dali::Toolkit::PrimitiveVisual::Shape::CYLINDER | CYLINDER | Equivalent to a conical frustrum with equal radii for the top and bottom circles. | color, scaleRadius, scaleHeight, slices |
628 | Dali::Toolkit::PrimitiveVisual::Shape::CUBE | CUBE | Equivalent to a bevelled cube with a bevel percentage of zero. | color, scaleDimensions |
629 | Dali::Toolkit::PrimitiveVisual::Shape::OCTAHEDRON | OCTAHEDRON | Equivalent to a bevelled cube with a bevel percentage of one. | color, scaleDimensions |
630 | Dali::Toolkit::PrimitiveVisual::Shape::BEVELLED_CUBE | BEVELLED_CUBE | A cube/cuboid with all edges flattened to some degree. | color, scaleDimensions, bevelPercentage, bevelSmoothness |
636 ![ ](../assets/img/visuals/sphere.png)
637 ![ ](visuals/sphere.png)
641 | Frustrum | Cone | Cylinder |
642 |----------|------|----------|
643 | ![ ](../assets/img/visuals/conical-frustrum.png) ![ ](visuals/conical-frustrum.png) | ![ ](../assets/img/visuals/cone.png) ![ ](visuals/cone.png) | ![ ](../assets/img/visuals/cylinder.png) ![ ](visuals/cylinder.png) |
645 ### Bevel {#bevel-details}
647 Bevel percentage ranges from 0.0 to 1.0. It affects the ratio of the outer face widths to the width of the overall cube, as shown:
649 | 0.0 ( cube) | 0.3 | 0.7 | 1.0 (octahedron) |
650 |-------------|-----|-----|------------------|
651 | ![ ](../assets/img/visuals/cube.png) ![ ](visuals/cube.png) | ![ ](../assets/img/visuals/bevelled-cube-low.png) ![ ](visuals/bevelled-cube-low.png) | ![ ](../assets/img/visuals/bevelled-cube-high.png) ![ ](visuals/bevelled-cube-high.png) | ![ ](../assets/img/visuals/octahedron.png) ![ ](visuals/octahedron.png) |
653 ### Slices {#slices-details}
655 For spheres and conical frustrums, 'slices' determines how many divisions there are as you go around the object.
657 ![ ](../assets/img/visuals/slices.png)
658 ![ ](visuals/slices.png)
660 ### Stacks {#stacks-details}
662 For spheres, 'stacks' determines how many layers there are as you go down the object.
664 ![ ](../assets/img/visuals/stacks.png)
665 ![ ](visuals/stacks.png)
673 Dali::Toolkit::Control control = Dali::Toolkit::Control::New();
675 Dali::Property::Map map;
677 map[ Visual::Property::TYPE ] = Dali::Toolkit::Visual::PRIMITIVE;
678 map[ PrimitiveVisual::Property::SHAPE ] = PrimitiveVisual::Shape::SPHERE;
679 map[ PrimitiveVisual::Property::MIX_COLOR ] = Vector4( 1.0, 0.5, 0.0, 1.0 );
681 control.SetProperty( Control::Property::BACKGROUND, map );
688 Dali::Toolkit::Control control = Dali::Toolkit::Control::New();
690 Dali::Property::Map map;
692 map[ Visual::Property::TYPE ] = Dali::Toolkit::Visual::PRIMITIVE;
693 map[ PrimitiveVisual::Property::SHAPE ] = PrimitiveVisual::Shape::CONICAL_FRUSTRUM;
694 map[ PrimitiveVisual::Property::MIX_COLOR ] = Vector4( 1.0, 0.5, 0.0, 1.0 );
695 map[ PrimitiveVisual::Property::SCALE_TOP_RADIUS ] = 1.0f;
696 map[ PrimitiveVisual::Property::SCALE_BOTTOM_RADIUS ] = 1.5f;
697 map[ PrimitiveVisual::Property::SCALE_HEIGHT ] = 3.0f;
699 control.SetProperty( Control::Property::BACKGROUND, map );
706 Dali::Toolkit::Control control = Dali::Toolkit::Control::New();
708 Dali::Property::Map map;
710 map[ Visual::Property::TYPE ] = Dali::Toolkit::Visual::PRIMITIVE;
711 map[ PrimitiveVisual::Property::SHAPE ] = PrimitiveVisual::Shape::BEVELLED_CUBE;
712 map[ PrimitiveVisual::Property::MIX_COLOR ] = Vector4( 1.0, 0.5, 0.0, 1.0 );
713 map[ PrimitiveVisual::Property::BEVEL_PERCENTAGE ] = 0.4f;
715 control.SetProperty( Control::Property::BACKGROUND, map );
717 ___________________________________________________________________________________________________
719 ## Text Visual {#text-visual}
721 Renders text within a control.
723 ![ ](../assets/img/visuals/HelloWorld.png)
724 ![ ](visuals/HelloWorld.png)
728 **VisualType:** Dali::Toolkit::Visual::TEXT, "TEXT"
730 | Property | String | Type | Required | Description | Default |
731 |-------------------------------------------------------------|---------------------|:-------------:|:--------:|-------------------------------------------------------------------------------|------------------------|
732 | Dali::Toolkit::TextVisual::Property::TEXT | text | STRING | Yes | The text to display in UTF-8 format | |
733 | Dali::Toolkit::TextVisual::Property::FONT_FAMILY | fontFamily | STRING | No | The requested font family to use | |
734 | Dali::Toolkit::TextVisual::Property::FONT_STYLE | fontStyle | MAP | No | The requested font style to use | |
735 | Dali::Toolkit::TextVisual::Property::POINT_SIZE | pointSize | FLOAT | Yes | The size of font in points | |
736 | Dali::Toolkit::TextVisual::Property::MULTI_LINE | multiLine | BOOLEAN | No | The single-line or multi-line layout option | false |
737 | Dali::Toolkit::TextVisual::Property::HORIZONTAL_ALIGNMENT | horizontalAlignment | STRING | No | The line horizontal alignment: "BEGIN", "CENTER", "END" | "BEGIN" |
738 | Dali::Toolkit::TextVisual::Property::VERTICAL_ALIGNMENT | verticalAlignment | STRING | No | The line vertical alignment: "TOP", "CENTER", "BOTTOM" | "TOP" |
739 | Dali::Toolkit::TextVisual::Property::TEXT_COLOR | textColor | VECTOR4 | No | The color of the text | Color::BLACK |
740 | Dali::Toolkit::TextVisual::Property::ENABLE_MARKUP | enableMarkup | BOOL | No | If mark up should be enabled | |
746 Dali::Stage stage = Dali::Stage::GetCurrent();
747 stage.SetBackgroundColor( Dali::Color::WHITE );
749 Dali::Toolkit::Control control = Dali::Toolkit::Control::New();
750 control.SetParentOrigin( ParentOrigin::CENTER );
752 Dali::Property::Map map;
753 map[ Dali::Toolkit::Visual::Property::TYPE ] = Dali::Toolkit::Visual::TEXT;
754 map[ Dali::Toolkit::TextVisual::Property::TEXT ] = "Hello world";
755 map[ Dali::Toolkit::TextVisual::Property::TEXT_COLOR ] = Dali::Color::BLACK;
756 map[ Dali::Toolkit::TextVisual::Property::FONT_FAMILY ] = "Sans";
757 map[ Dali::Toolkit::TextVisual::Property::POINT_SIZE ] = 30.f;
758 map[ Dali::Toolkit::TextVisual::Property::HORIZONTAL_ALIGNMENT ] = "CENTER";
759 map[ Dali::Toolkit::TextVisual::Property::VERTICAL_ALIGNMENT ] = "CENTER";
761 control.SetProperty( Dali::Toolkit::Control::Property::BACKGROUND, map );
763 stage.Add( control );
766 ## Wireframe Visual {#wireframe-visual}
768 Renders a wireframe around a quad geometry.
769 Is mainly used for debugging and is the visual that replaces all other visuals when [Visual Debug Rendering](@ref debugrendering) is turned on.
771 ![ ](../assets/img/visuals/wireframe-visual.png)
772 ![ ](visuals/wireframe-visual.png)
776 **VisualType:** Dali::Toolkit::Visual::WIREFRAME, "WIREFRAME"
782 Dali::Toolkit::Control control = Dali::Toolkit::Control::New();
784 Dali::Property::Map map;
785 map[ Visual::Property::TYPE ] = Dali::Toolkit::Visual::WIREFRAME;
787 control.SetProperty( Control::Property::BACKGROUND, map );
792 var control = new dali.Control( "Control" );
796 visualType : "WIREFRAME"
801 @class _Guide_Control_Visuals