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/*
This file is part of the iText (R) project.
Copyright (c) 1998-2024 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.pdf.canvas.PdfCanvas;
/**
* Creates a double border around the element it's set to. The space between the two border lines has
* the same width as the two borders. If a background has been set on the element the color will show in
* between the two borders.
*/
public class DoubleBorder extends Border {
/**
* Creates a DoubleBorder with the specified width for both the two borders as the space in between them.
* The color is set to the default: black.
*
* @param width width of the borders and the space between them
*/
public DoubleBorder(float width) {
super(width);
}
/**
* Creates a DoubleBorder with the specified width for both the two borders as the space in between them and
* the specified color for the two borders. The space in between the two borders is either colorless or will
* be filled with the background color of the element, if a color has been set.
*
* @param color The color of the borders
* @param width The width of the borders and the space between them
*/
public DoubleBorder(Color color, float width) {
super(color, width);
}
/**
* Creates a DoubleBorder with the specified width for both the two borders as the space in between them and
* the specified color for the two borders. The space in between the two borders is either colorless or will
* be filled with the background color of the element, if a color has been set.
*
* @param color The color of the borders
* @param width The width of the borders and the space between them
* @param opacity The opacity
*/
public DoubleBorder(Color color, float width, float opacity) {
super(color, width, opacity);
}
/**
* {@inheritDoc}
*/
@Override
public int getType() {
return Border.DOUBLE;
}
/**
* {@inheritDoc}
*/
@Override
public void draw(PdfCanvas canvas, float x1, float y1, float x2, float y2, Side defaultSide, float borderWidthBefore, float borderWidthAfter) {
float x3 = 0, y3 = 0;
float x4 = 0, y4 = 0;
float thirdOfWidth = width / 3;
float thirdOfWidthBefore = borderWidthBefore / 3;
float thirdOfWidthAfter = borderWidthAfter / 3;
Border.Side borderSide = getBorderSide(x1, y1, x2, y2, defaultSide);
switch (borderSide) {
case TOP:
x3 = x2 + thirdOfWidthAfter;
y3 = y2 + thirdOfWidth;
x4 = x1 - thirdOfWidthBefore;
y4 = y1 + thirdOfWidth;
break;
case RIGHT:
x3 = x2 + thirdOfWidth;
y3 = y2 - thirdOfWidthAfter;
x4 = x1 + thirdOfWidth;
y4 = y1 + thirdOfWidthBefore;
break;
case BOTTOM:
x3 = x2 - thirdOfWidthAfter;
y3 = y2 - thirdOfWidth;
x4 = x1 + thirdOfWidthBefore;
y4 = y1 - thirdOfWidth;
break;
case LEFT:
x3 = x2 - thirdOfWidth;
y3 = y2 + thirdOfWidthAfter;
x4 = x1 - thirdOfWidth;
y4 = y1 - thirdOfWidthBefore;
break;
}
canvas.saveState()
.setFillColor(transparentColor.getColor());
transparentColor.applyFillTransparency(canvas);
canvas
.moveTo(x1, y1).lineTo(x2, y2).lineTo(x3, y3).lineTo(x4, y4).lineTo(x1, y1).fill();
switch (borderSide) {
case TOP:
x2 += 2 * thirdOfWidthAfter;
y2 += 2 * thirdOfWidth;
x3 += 2 * thirdOfWidthAfter;
y3 += 2 * thirdOfWidth;
x4 -= 2 * thirdOfWidthBefore;
y4 += 2 * thirdOfWidth;
x1 -= 2 * thirdOfWidthBefore;
y1 += 2 * thirdOfWidth;
break;
case RIGHT:
x2 += 2 * thirdOfWidth;
y2 -= 2 * thirdOfWidthAfter;
x3 += 2 * thirdOfWidth;
y3 -= 2 * thirdOfWidthAfter;
x4 += 2 * thirdOfWidth;
y4 += 2 * thirdOfWidthBefore;
x1 += 2 * thirdOfWidth;
y1 += 2 * thirdOfWidthBefore;
break;
case BOTTOM:
x2 -= 2 * thirdOfWidthAfter;
y2 -= 2 * thirdOfWidth;
x3 -= 2 * thirdOfWidthAfter;
y3 -= 2 * thirdOfWidth;
x4 += 2 * thirdOfWidthBefore;
y4 -= 2 * thirdOfWidth;
x1 += 2 * thirdOfWidthBefore;
y1 -= 2 * thirdOfWidth;
break;
case LEFT:
x2 -= 2 * thirdOfWidth;
y2 += 2 * thirdOfWidthAfter;
x3 -= 2 * thirdOfWidth;
y3 += 2 * thirdOfWidthAfter;
x4 -= 2 * thirdOfWidth;
y4 -= 2 * thirdOfWidthBefore;
x1 -= 2 * thirdOfWidth;
y1 -= 2 * thirdOfWidthBefore;
break;
}
canvas.moveTo(x1, y1).lineTo(x2, y2).lineTo(x3, y3).lineTo(x4, y4).lineTo(x1, y1).fill()
.restoreState();
}
/**
* {@inheritDoc}
*/
@Override
public void drawCellBorder(PdfCanvas canvas, float x1, float y1, float x2, float y2, Side defaultSide) {
float thirdOfWidth = width / 3;
Border.Side borderSide = getBorderSide(x1, y1, x2, y2, defaultSide);
switch (borderSide) {
case TOP:
y1 -= thirdOfWidth;
y2 = y1;
break;
case RIGHT:
x1 -= thirdOfWidth;
x2 -= thirdOfWidth;
y1 += thirdOfWidth;
y2 -= thirdOfWidth;
break;
case BOTTOM:
break;
case LEFT:
break;
}
canvas.
saveState().
setLineWidth(thirdOfWidth).
setStrokeColor(transparentColor.getColor());
transparentColor.applyStrokeTransparency(canvas);
canvas.
moveTo(x1, y1).
lineTo(x2, y2).
stroke().
restoreState();
switch (borderSide) {
case TOP:
// x1 -= 2*thirdOfWidth;
y2 += 2 * thirdOfWidth;
y1 += 2 * thirdOfWidth;
break;
case RIGHT:
x2 += 2 * thirdOfWidth;
x1 += 2 * thirdOfWidth;
// y1 -= 2*thirdOfWidth;
break;
case BOTTOM:
x2 -= 2 * thirdOfWidth;
y2 -= 2 * thirdOfWidth;
x1 += 2 * thirdOfWidth;
y1 -= 2 * thirdOfWidth;
break;
case LEFT:
y2 += 2 * thirdOfWidth;
x1 -= 2 * thirdOfWidth;
y1 -= 2 * thirdOfWidth;
break;
}
canvas.
saveState().
setLineWidth(thirdOfWidth).
setStrokeColor(transparentColor.getColor());
transparentColor.applyStrokeTransparency(canvas);
canvas.
moveTo(x1, y1).
lineTo(x2, y2).
stroke().
restoreState();
}
}
