com.netflix.atlas.chart.graphics.Element.scala Maven / Gradle / Ivy
/*
* Copyright 2014-2024 Netflix, Inc.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package com.netflix.atlas.chart.graphics
import java.awt.Graphics2D
/**
* Base type for elements to draw as part of the chart.
*/
trait Element {
def draw(g: Graphics2D, x1: Int, y1: Int, x2: Int, y2: Int): Unit
/** Compute the width for the element if restricted to the specified height. */
def getWidth(g: Graphics2D, height: Int): Int = {
this match {
case h: FixedWidth => h.width
case h: VariableWidth => h.computeWidth(g, height)
case _ => 0
}
}
/** Compute the height for the element if restricted to the specified width. */
def getHeight(g: Graphics2D, width: Int): Int = {
this match {
case h: FixedHeight => h.height
case h: VariableHeight => h.computeHeight(g, width)
case _ => 0
}
}
}
/** Indicates the element has a fixed width. */
trait FixedWidth {
def width: Int
}
/** Indicates the element has a fixed height. */
trait FixedHeight {
def height: Int
}
/**
* Indicates that the height of the element is variable depending on the width. The most common
* example is text that can wrap to fit the width available.
*/
trait VariableWidth {
def minWidth: Int
def computeWidth(g: Graphics2D, width: Int): Int
}
/**
* Indicates that the height of the element is variable depending on the width. The most common
* example is text that can wrap to fit the width available.
*/
trait VariableHeight {
def minHeight: Int
def computeHeight(g: Graphics2D, width: Int): Int
}