com.itextpdf.layout.margincollapse.MarginsCollapseInfo Maven / Gradle / Ivy
/*
This file is part of the iText (R) project.
Copyright (c) 1998-2022 iText Group NV
Authors: Bruno Lowagie, Paulo Soares, et al.
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU Affero General Public License version 3
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following permission added to Section 15 as permitted in Section 7(a):
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or FITNESS FOR A PARTICULAR PURPOSE.
See the GNU Affero General Public License for more details.
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*/
package com.itextpdf.layout.margincollapse;
public class MarginsCollapseInfo {
private boolean ignoreOwnMarginTop;
private boolean ignoreOwnMarginBottom;
private MarginsCollapse collapseBefore;
private MarginsCollapse collapseAfter;
// MarginCollapse instance which contains margin-after of the element without next sibling or parent margins (only element's margin and element's kids)
private MarginsCollapse ownCollapseAfter;
private boolean isSelfCollapsing;
// when a parent has a fixed height these fields tells kid how much free space parent has for the margin collapsed with kid
private float bufferSpaceOnTop;
private float bufferSpaceOnBottom;
private float usedBufferSpaceOnTop;
private float usedBufferSpaceOnBottom;
private boolean clearanceApplied;
MarginsCollapseInfo() {
this.ignoreOwnMarginTop = false;
this.ignoreOwnMarginBottom = false;
this.collapseBefore = new MarginsCollapse();
this.collapseAfter = new MarginsCollapse();
this.isSelfCollapsing = true;
this.bufferSpaceOnTop = 0;
this.bufferSpaceOnBottom = 0;
this.usedBufferSpaceOnTop = 0;
this.usedBufferSpaceOnBottom = 0;
this.clearanceApplied = false;
}
MarginsCollapseInfo(boolean ignoreOwnMarginTop, boolean ignoreOwnMarginBottom, MarginsCollapse collapseBefore, MarginsCollapse collapseAfter) {
this.ignoreOwnMarginTop = ignoreOwnMarginTop;
this.ignoreOwnMarginBottom = ignoreOwnMarginBottom;
this.collapseBefore = collapseBefore;
this.collapseAfter = collapseAfter;
this.isSelfCollapsing = true;
this.bufferSpaceOnTop = 0;
this.bufferSpaceOnBottom = 0;
this.usedBufferSpaceOnTop = 0;
this.usedBufferSpaceOnBottom = 0;
this.clearanceApplied = false;
}
public void copyTo(MarginsCollapseInfo destInfo) {
destInfo.ignoreOwnMarginTop = this.ignoreOwnMarginTop;
destInfo.ignoreOwnMarginBottom = this.ignoreOwnMarginBottom;
destInfo.collapseBefore = this.collapseBefore;
destInfo.collapseAfter = this.collapseAfter;
destInfo.setOwnCollapseAfter(ownCollapseAfter);
destInfo.setSelfCollapsing(isSelfCollapsing);
destInfo.setBufferSpaceOnTop(bufferSpaceOnTop);
destInfo.setBufferSpaceOnBottom(bufferSpaceOnBottom);
destInfo.setUsedBufferSpaceOnTop(usedBufferSpaceOnTop);
destInfo.setUsedBufferSpaceOnBottom(usedBufferSpaceOnBottom);
destInfo.setClearanceApplied(clearanceApplied);
}
public static MarginsCollapseInfo createDeepCopy(MarginsCollapseInfo instance) {
MarginsCollapseInfo copy = new MarginsCollapseInfo();
instance.copyTo(copy);
copy.collapseBefore = instance.collapseBefore.clone();
copy.collapseAfter = instance.collapseAfter.clone();
if (instance.ownCollapseAfter != null) {
copy.setOwnCollapseAfter(instance.ownCollapseAfter.clone());
}
return copy;
}
public static void updateFromCopy(MarginsCollapseInfo originalInstance, MarginsCollapseInfo processedCopy) {
originalInstance.ignoreOwnMarginTop = processedCopy.ignoreOwnMarginTop;
originalInstance.ignoreOwnMarginBottom = processedCopy.ignoreOwnMarginBottom;
originalInstance.collapseBefore.joinMargin(processedCopy.collapseBefore);
originalInstance.collapseAfter.joinMargin(processedCopy.collapseAfter);
if (processedCopy.getOwnCollapseAfter() != null) {
if (originalInstance.getOwnCollapseAfter() == null) {
originalInstance.setOwnCollapseAfter(new MarginsCollapse());
}
originalInstance.getOwnCollapseAfter().joinMargin(processedCopy.getOwnCollapseAfter());
}
originalInstance.setSelfCollapsing(processedCopy.isSelfCollapsing);
originalInstance.setBufferSpaceOnTop(processedCopy.bufferSpaceOnTop);
originalInstance.setBufferSpaceOnBottom(processedCopy.bufferSpaceOnBottom);
originalInstance.setUsedBufferSpaceOnTop(processedCopy.usedBufferSpaceOnTop);
originalInstance.setUsedBufferSpaceOnBottom(processedCopy.usedBufferSpaceOnBottom);
originalInstance.setClearanceApplied(processedCopy.clearanceApplied);
}
MarginsCollapse getCollapseBefore() {
return this.collapseBefore;
}
MarginsCollapse getCollapseAfter() {
return collapseAfter;
}
void setCollapseAfter(MarginsCollapse collapseAfter) {
this.collapseAfter = collapseAfter;
}
MarginsCollapse getOwnCollapseAfter() {
return ownCollapseAfter;
}
void setOwnCollapseAfter(MarginsCollapse marginsCollapse) {
this.ownCollapseAfter = marginsCollapse;
}
void setSelfCollapsing(boolean selfCollapsing) {
isSelfCollapsing = selfCollapsing;
}
boolean isSelfCollapsing() {
return isSelfCollapsing;
}
boolean isIgnoreOwnMarginTop() {
return ignoreOwnMarginTop;
}
boolean isIgnoreOwnMarginBottom() {
return ignoreOwnMarginBottom;
}
float getBufferSpaceOnTop() {
return bufferSpaceOnTop;
}
void setBufferSpaceOnTop(float bufferSpaceOnTop) {
this.bufferSpaceOnTop = bufferSpaceOnTop;
}
float getBufferSpaceOnBottom() {
return bufferSpaceOnBottom;
}
void setBufferSpaceOnBottom(float bufferSpaceOnBottom) {
this.bufferSpaceOnBottom = bufferSpaceOnBottom;
}
float getUsedBufferSpaceOnTop() {
return usedBufferSpaceOnTop;
}
void setUsedBufferSpaceOnTop(float usedBufferSpaceOnTop) {
this.usedBufferSpaceOnTop = usedBufferSpaceOnTop;
}
float getUsedBufferSpaceOnBottom() {
return usedBufferSpaceOnBottom;
}
void setUsedBufferSpaceOnBottom(float usedBufferSpaceOnBottom) {
this.usedBufferSpaceOnBottom = usedBufferSpaceOnBottom;
}
boolean isClearanceApplied() {
return clearanceApplied;
}
void setClearanceApplied(boolean clearanceApplied) {
this.clearanceApplied = clearanceApplied;
}
}