public final class Color extends com.google.protobuf.GeneratedMessageV3 implements ColorOrBuilder
Represents a color in the RGBA color space. This representation is designed for simplicity of conversion to/from color representations in various languages over compactness; for example, the fields of this representation can be trivially provided to the constructor of "java.awt.Color" in Java; it can also be trivially provided to UIColor's "+colorWithRed:green:blue:alpha" method in iOS; and, with just a little work, it can be easily formatted into a CSS "rgba()" string in JavaScript, as well. Here are some examples: Example (Java): import com.google.type.Color; // ... public static java.awt.Color fromProto(Color protocolor) { float alpha = protocolor.hasAlpha() ? protocolor.getAlpha().getValue() : 1.0; return new java.awt.Color( protocolor.getRed(), protocolor.getGreen(), protocolor.getBlue(), alpha); } public static Color toProto(java.awt.Color color) { float red = (float) color.getRed(); float green = (float) color.getGreen(); float blue = (float) color.getBlue(); float denominator = 255.0; Color.Builder resultBuilder = Color .newBuilder() .setRed(red / denominator) .setGreen(green / denominator) .setBlue(blue / denominator); int alpha = color.getAlpha(); if (alpha != 255) { result.setAlpha( FloatValue .newBuilder() .setValue(((float) alpha) / denominator) .build()); } return resultBuilder.build(); } // ... Example (iOS / Obj-C): // ... static UIColor* fromProto(Color* protocolor) { float red = [protocolor red]; float green = [protocolor green]; float blue = [protocolor blue]; FloatValue* alpha_wrapper = [protocolor alpha]; float alpha = 1.0; if (alpha_wrapper != nil) { alpha = [alpha_wrapper value]; } return [UIColor colorWithRed:red green:green blue:blue alpha:alpha]; } static Color* toProto(UIColor* color) { CGFloat red, green, blue, alpha; if (![color getRed:&red green:&green blue:&blue alpha:&alpha]) { return nil; } Color* result = [Color alloc] init]; [result setRed:red]; [result setGreen:green]; [result setBlue:blue]; if (alpha <= 0.9999) { [result setAlpha:floatWrapperWithValue(alpha)]; } [result autorelease]; return result; } // ... Example (JavaScript): // ... var protoToCssColor = function(rgb_color) { var redFrac = rgb_color.red || 0.0; var greenFrac = rgb_color.green || 0.0; var blueFrac = rgb_color.blue || 0.0; var red = Math.floor(redFrac * 255); var green = Math.floor(greenFrac * 255); var blue = Math.floor(blueFrac * 255); if (!('alpha' in rgb_color)) { return rgbToCssColor_(red, green, blue); } var alphaFrac = rgb_color.alpha.value || 0.0; var rgbParams = [red, green, blue].join(','); return ['rgba(', rgbParams, ',', alphaFrac, ')'].join(''); }; var rgbToCssColor_ = function(red, green, blue) { var rgbNumber = new Number((red << 16) | (green << 8) | blue); var hexString = rgbNumber.toString(16); var missingZeros = 6 - hexString.length; var resultBuilder = ['#']; for (var i = 0; i < missingZeros; i++) { resultBuilder.push('0'); } resultBuilder.push(hexString); return resultBuilder.join(''); }; // ...Protobuf type
google.type.Color
Modifier and Type | Class and Description |
---|---|
static class |
Color.Builder
Represents a color in the RGBA color space.
|
com.google.protobuf.GeneratedMessageV3.BuilderParent, com.google.protobuf.GeneratedMessageV3.ExtendableBuilder<MessageType extends com.google.protobuf.GeneratedMessageV3.ExtendableMessage,BuilderType extends com.google.protobuf.GeneratedMessageV3.ExtendableBuilder<MessageType,BuilderType>>, com.google.protobuf.GeneratedMessageV3.ExtendableMessage<MessageType extends com.google.protobuf.GeneratedMessageV3.ExtendableMessage>, com.google.protobuf.GeneratedMessageV3.ExtendableMessageOrBuilder<MessageType extends com.google.protobuf.GeneratedMessageV3.ExtendableMessage>, com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
Modifier and Type | Field and Description |
---|---|
static int |
ALPHA_FIELD_NUMBER |
static int |
BLUE_FIELD_NUMBER |
static int |
GREEN_FIELD_NUMBER |
static int |
RED_FIELD_NUMBER |
Modifier and Type | Method and Description |
---|---|
boolean |
equals(java.lang.Object obj) |
com.google.protobuf.FloatValue |
getAlpha()
The fraction of this color that should be applied to the pixel.
|
com.google.protobuf.FloatValueOrBuilder |
getAlphaOrBuilder()
The fraction of this color that should be applied to the pixel.
|
float |
getBlue()
The amount of blue in the color as a value in the interval [0, 1].
|
static Color |
getDefaultInstance() |
Color |
getDefaultInstanceForType() |
static com.google.protobuf.Descriptors.Descriptor |
getDescriptor() |
float |
getGreen()
The amount of green in the color as a value in the interval [0, 1].
|
com.google.protobuf.Parser<Color> |
getParserForType() |
float |
getRed()
The amount of red in the color as a value in the interval [0, 1].
|
int |
getSerializedSize() |
com.google.protobuf.UnknownFieldSet |
getUnknownFields() |
boolean |
hasAlpha()
The fraction of this color that should be applied to the pixel.
|
int |
hashCode() |
protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable |
internalGetFieldAccessorTable() |
boolean |
isInitialized() |
static Color.Builder |
newBuilder() |
static Color.Builder |
newBuilder(Color prototype) |
Color.Builder |
newBuilderForType() |
protected Color.Builder |
newBuilderForType(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) |
static Color |
parseDelimitedFrom(java.io.InputStream input) |
static Color |
parseDelimitedFrom(java.io.InputStream input,
com.google.protobuf.ExtensionRegistryLite extensionRegistry) |
static Color |
parseFrom(byte[] data) |
static Color |
parseFrom(byte[] data,
com.google.protobuf.ExtensionRegistryLite extensionRegistry) |
static Color |
parseFrom(java.nio.ByteBuffer data) |
static Color |
parseFrom(java.nio.ByteBuffer data,
com.google.protobuf.ExtensionRegistryLite extensionRegistry) |
static Color |
parseFrom(com.google.protobuf.ByteString data) |
static Color |
parseFrom(com.google.protobuf.ByteString data,
com.google.protobuf.ExtensionRegistryLite extensionRegistry) |
static Color |
parseFrom(com.google.protobuf.CodedInputStream input) |
static Color |
parseFrom(com.google.protobuf.CodedInputStream input,
com.google.protobuf.ExtensionRegistryLite extensionRegistry) |
static Color |
parseFrom(java.io.InputStream input) |
static Color |
parseFrom(java.io.InputStream input,
com.google.protobuf.ExtensionRegistryLite extensionRegistry) |
static com.google.protobuf.Parser<Color> |
parser() |
Color.Builder |
toBuilder() |
void |
writeTo(com.google.protobuf.CodedOutputStream output) |
canUseUnsafe, computeStringSize, computeStringSizeNoTag, getAllFields, getDescriptorForType, getField, getOneofFieldDescriptor, getRepeatedField, getRepeatedFieldCount, hasField, hasOneof, internalGetMapField, makeExtensionsImmutable, newBuilderForType, parseDelimitedWithIOException, parseDelimitedWithIOException, parseUnknownField, parseUnknownFieldProto3, parseWithIOException, parseWithIOException, parseWithIOException, parseWithIOException, serializeBooleanMapTo, serializeIntegerMapTo, serializeLongMapTo, serializeStringMapTo, writeReplace, writeString, writeStringNoTag
findInitializationErrors, getInitializationErrorString, hashBoolean, hashEnum, hashEnumList, hashFields, hashLong, toString
addAll, addAll, checkByteStringIsUtf8, toByteArray, toByteString, writeDelimitedTo, writeTo
clone, finalize, getClass, notify, notifyAll, wait, wait, wait
public static final int RED_FIELD_NUMBER
public static final int GREEN_FIELD_NUMBER
public static final int BLUE_FIELD_NUMBER
public static final int ALPHA_FIELD_NUMBER
public final com.google.protobuf.UnknownFieldSet getUnknownFields()
getUnknownFields
in interface com.google.protobuf.MessageOrBuilder
getUnknownFields
in class com.google.protobuf.GeneratedMessageV3
public static final com.google.protobuf.Descriptors.Descriptor getDescriptor()
protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable internalGetFieldAccessorTable()
internalGetFieldAccessorTable
in class com.google.protobuf.GeneratedMessageV3
public float getRed()
The amount of red in the color as a value in the interval [0, 1].
float red = 1;
getRed
in interface ColorOrBuilder
public float getGreen()
The amount of green in the color as a value in the interval [0, 1].
float green = 2;
getGreen
in interface ColorOrBuilder
public float getBlue()
The amount of blue in the color as a value in the interval [0, 1].
float blue = 3;
getBlue
in interface ColorOrBuilder
public boolean hasAlpha()
The fraction of this color that should be applied to the pixel. That is, the final pixel color is defined by the equation: pixel color = alpha * (this color) + (1.0 - alpha) * (background color) This means that a value of 1.0 corresponds to a solid color, whereas a value of 0.0 corresponds to a completely transparent color. This uses a wrapper message rather than a simple float scalar so that it is possible to distinguish between a default value and the value being unset. If omitted, this color object is to be rendered as a solid color (as if the alpha value had been explicitly given with a value of 1.0).
.google.protobuf.FloatValue alpha = 4;
hasAlpha
in interface ColorOrBuilder
public com.google.protobuf.FloatValue getAlpha()
The fraction of this color that should be applied to the pixel. That is, the final pixel color is defined by the equation: pixel color = alpha * (this color) + (1.0 - alpha) * (background color) This means that a value of 1.0 corresponds to a solid color, whereas a value of 0.0 corresponds to a completely transparent color. This uses a wrapper message rather than a simple float scalar so that it is possible to distinguish between a default value and the value being unset. If omitted, this color object is to be rendered as a solid color (as if the alpha value had been explicitly given with a value of 1.0).
.google.protobuf.FloatValue alpha = 4;
getAlpha
in interface ColorOrBuilder
public com.google.protobuf.FloatValueOrBuilder getAlphaOrBuilder()
The fraction of this color that should be applied to the pixel. That is, the final pixel color is defined by the equation: pixel color = alpha * (this color) + (1.0 - alpha) * (background color) This means that a value of 1.0 corresponds to a solid color, whereas a value of 0.0 corresponds to a completely transparent color. This uses a wrapper message rather than a simple float scalar so that it is possible to distinguish between a default value and the value being unset. If omitted, this color object is to be rendered as a solid color (as if the alpha value had been explicitly given with a value of 1.0).
.google.protobuf.FloatValue alpha = 4;
getAlphaOrBuilder
in interface ColorOrBuilder
public final boolean isInitialized()
isInitialized
in interface com.google.protobuf.MessageLiteOrBuilder
isInitialized
in class com.google.protobuf.GeneratedMessageV3
public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io.IOException
writeTo
in interface com.google.protobuf.MessageLite
writeTo
in class com.google.protobuf.GeneratedMessageV3
java.io.IOException
public int getSerializedSize()
getSerializedSize
in interface com.google.protobuf.MessageLite
getSerializedSize
in class com.google.protobuf.GeneratedMessageV3
public boolean equals(java.lang.Object obj)
equals
in interface com.google.protobuf.Message
equals
in class com.google.protobuf.AbstractMessage
public int hashCode()
hashCode
in interface com.google.protobuf.Message
hashCode
in class com.google.protobuf.AbstractMessage
public static Color parseFrom(java.nio.ByteBuffer data) throws com.google.protobuf.InvalidProtocolBufferException
com.google.protobuf.InvalidProtocolBufferException
public static Color parseFrom(java.nio.ByteBuffer data, com.google.protobuf.ExtensionRegistryLite extensionRegistry) throws com.google.protobuf.InvalidProtocolBufferException
com.google.protobuf.InvalidProtocolBufferException
public static Color parseFrom(com.google.protobuf.ByteString data) throws com.google.protobuf.InvalidProtocolBufferException
com.google.protobuf.InvalidProtocolBufferException
public static Color parseFrom(com.google.protobuf.ByteString data, com.google.protobuf.ExtensionRegistryLite extensionRegistry) throws com.google.protobuf.InvalidProtocolBufferException
com.google.protobuf.InvalidProtocolBufferException
public static Color parseFrom(byte[] data) throws com.google.protobuf.InvalidProtocolBufferException
com.google.protobuf.InvalidProtocolBufferException
public static Color parseFrom(byte[] data, com.google.protobuf.ExtensionRegistryLite extensionRegistry) throws com.google.protobuf.InvalidProtocolBufferException
com.google.protobuf.InvalidProtocolBufferException
public static Color parseFrom(java.io.InputStream input) throws java.io.IOException
java.io.IOException
public static Color parseFrom(java.io.InputStream input, com.google.protobuf.ExtensionRegistryLite extensionRegistry) throws java.io.IOException
java.io.IOException
public static Color parseDelimitedFrom(java.io.InputStream input) throws java.io.IOException
java.io.IOException
public static Color parseDelimitedFrom(java.io.InputStream input, com.google.protobuf.ExtensionRegistryLite extensionRegistry) throws java.io.IOException
java.io.IOException
public static Color parseFrom(com.google.protobuf.CodedInputStream input) throws java.io.IOException
java.io.IOException
public static Color parseFrom(com.google.protobuf.CodedInputStream input, com.google.protobuf.ExtensionRegistryLite extensionRegistry) throws java.io.IOException
java.io.IOException
public Color.Builder newBuilderForType()
newBuilderForType
in interface com.google.protobuf.Message
newBuilderForType
in interface com.google.protobuf.MessageLite
public static Color.Builder newBuilder()
public static Color.Builder newBuilder(Color prototype)
public Color.Builder toBuilder()
toBuilder
in interface com.google.protobuf.Message
toBuilder
in interface com.google.protobuf.MessageLite
protected Color.Builder newBuilderForType(com.google.protobuf.GeneratedMessageV3.BuilderParent parent)
newBuilderForType
in class com.google.protobuf.GeneratedMessageV3
public static Color getDefaultInstance()
public static com.google.protobuf.Parser<Color> parser()
public com.google.protobuf.Parser<Color> getParserForType()
getParserForType
in interface com.google.protobuf.Message
getParserForType
in interface com.google.protobuf.MessageLite
getParserForType
in class com.google.protobuf.GeneratedMessageV3
public Color getDefaultInstanceForType()
getDefaultInstanceForType
in interface com.google.protobuf.MessageLiteOrBuilder
getDefaultInstanceForType
in interface com.google.protobuf.MessageOrBuilder