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/*
This file is part of the iText (R) project.
Copyright (c) 1998-2023 Apryse Group NV
Authors: Apryse Software.
This program is offered under a commercial and under the AGPL license.
For commercial licensing, contact us at https://itextpdf.com/sales. For AGPL licensing, see below.
AGPL licensing:
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU Affero General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU Affero General Public License for more details.
You should have received a copy of the GNU Affero General Public License
along with this program. If not, see .
*/
package com.itextpdf.layout.borders;
import com.itextpdf.kernel.colors.Color;
import com.itextpdf.kernel.geom.Rectangle;
import com.itextpdf.kernel.pdf.canvas.PdfCanvas;
import com.itextpdf.kernel.pdf.canvas.PdfCanvasConstants;
/**
* Draws a border with rounded dots around the element it's been set to. For square dots see {@link DottedBorder}.
*/
public class RoundDotsBorder extends Border {
/**
* The modifier to be applied on the width to have the initial gap size
*/
private static final float GAP_MODIFIER = 2.5f;
/**
* Creates a RoundDotsBorder with the specified wit?dth and sets the color to black.
*
* @param width width of the border
*/
public RoundDotsBorder(float width) {
super(width);
}
/**
* Creates a RoundDotsBorder with the specified wit?dth and the specified color.
*
* @param color color of the border
* @param width width of the border
*/
public RoundDotsBorder(Color color, float width) {
super(color, width);
}
/**
* Creates a RoundDotsBorder with the specified width, color and opacity.
*
* @param color color of the border
* @param width width of the border
* @param opacity width of the border
*/
public RoundDotsBorder(Color color, float width, float opacity) {
super(color, width, opacity);
}
/**
* {@inheritDoc}
*/
@Override
public int getType() {
return ROUND_DOTS;
}
/**
* {@inheritDoc}
*/
@Override
public void draw(PdfCanvas canvas, float x1, float y1, float x2, float y2, Side defaultSide, float borderWidthBefore, float borderWidthAfter) {
float initialGap = width * GAP_MODIFIER;
float dx = x2 - x1;
float dy = y2 - y1;
double borderLength = Math.sqrt(dx * dx + dy * dy);
float adjustedGap = super.getDotsGap(borderLength, initialGap);
float[] startingPoints = getStartingPointsForBorderSide(x1, y1, x2, y2, defaultSide);
x1 = startingPoints[0];
y1 = startingPoints[1];
x2 = startingPoints[2];
y2 = startingPoints[3];
canvas.saveState()
.setStrokeColor(transparentColor.getColor())
.setLineWidth(width)
.setLineCapStyle(PdfCanvasConstants.LineCapStyle.ROUND);
transparentColor.applyStrokeTransparency(canvas);
canvas.setLineDash(0, adjustedGap, adjustedGap/2)
.moveTo(x1, y1).lineTo(x2, y2)
.stroke()
.restoreState();
}
/**
* {@inheritDoc}
*/
@Override
public void drawCellBorder(PdfCanvas canvas, float x1, float y1, float x2, float y2, Side defaultSide) {
float initialGap = width * GAP_MODIFIER;
float dx = x2 - x1;
float dy = y2 - y1;
double borderLength = Math.sqrt(dx * dx + dy * dy);
float adjustedGap = super.getDotsGap(borderLength, initialGap);
boolean isHorizontal = false;
if (Math.abs(y2 - y1) < 0.0005f) {
isHorizontal = true;
}
if (isHorizontal) {
x2 -= width;
}
canvas.saveState();
canvas.setStrokeColor(transparentColor.getColor());
transparentColor.applyStrokeTransparency(canvas);
canvas.setLineWidth(width);
canvas.setLineCapStyle(PdfCanvasConstants.LineCapStyle.ROUND);
canvas.setLineDash(0, adjustedGap, adjustedGap / 2)
.moveTo(x1, y1).lineTo(x2, y2)
.stroke();
canvas.restoreState();
}
/**
* {@inheritDoc}
*/
@Override
public void draw(PdfCanvas canvas, float x1, float y1, float x2, float y2, float horizontalRadius1, float verticalRadius1, float horizontalRadius2, float verticalRadius2, Side defaultSide, float borderWidthBefore, float borderWidthAfter) {
float initialGap = width * GAP_MODIFIER;
float dx = x2 - x1;
float dy = y2 - y1;
double borderLength = Math.sqrt(dx * dx + dy * dy);
float adjustedGap = super.getDotsGap(borderLength, initialGap);
canvas
.saveState()
.setStrokeColor(transparentColor.getColor());
transparentColor.applyStrokeTransparency(canvas);
canvas
.setLineWidth(width)
.setLineCapStyle(PdfCanvasConstants.LineCapStyle.ROUND)
.setLineDash(0, adjustedGap, adjustedGap / 2);
Rectangle boundingRectangle = new Rectangle(x1, y1, x2 - x1, y2 - y1);
float[] horizontalRadii = new float[]{horizontalRadius1, horizontalRadius2};
float[] verticalRadii = new float[]{verticalRadius1, verticalRadius2};
drawDiscontinuousBorders(canvas, boundingRectangle, horizontalRadii, verticalRadii, defaultSide, borderWidthBefore, borderWidthAfter);
}
}
