com.itextpdf.layout.renderer.CellRenderer Maven / Gradle / Ivy
/*
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 getProperty(Property.BORDER_COLLAPSE))) {
super.drawBorder(drawContext);
} else {
// Do nothing here. Border drawing for cells is done on TableRenderer.
}
}
@Override
protected Rectangle applyBorderBox(Rectangle rect, Border[] borders, boolean reverse) {
if (BorderCollapsePropertyValue.SEPARATE.equals(parent.getProperty(Property.BORDER_COLLAPSE))) {
super.applyBorderBox(rect, borders, reverse);
} else {
// Do nothing here. Borders are processed on TableRenderer level.
}
return rect;
}
@Override
protected Rectangle applyMargins(Rectangle rect, UnitValue[] margins, boolean reverse) {
// If borders are separated, process border's spacing here.
if (BorderCollapsePropertyValue.SEPARATE.equals(parent.getProperty(Property.BORDER_COLLAPSE))) {
applySpacings(rect, reverse);
}
return rect;
}
/**
* Applies spacings on the given rectangle.
*
* @param rect a rectangle spacings will be applied on
* @param reverse indicates whether spacings will be applied
* inside (in case of false) or outside (in case of true) the rectangle.
*
* @return a {@link Rectangle border box} of the renderer
*/
protected Rectangle applySpacings(Rectangle rect, boolean reverse) {
if (BorderCollapsePropertyValue.SEPARATE.equals(parent.getProperty(Property.BORDER_COLLAPSE))) {
Float verticalBorderSpacing = this.parent.getProperty(Property.VERTICAL_BORDER_SPACING);
Float horizontalBorderSpacing = this.parent.getProperty(Property.HORIZONTAL_BORDER_SPACING);
float[] cellSpacings = new float[4];
for (int i = 0; i < cellSpacings.length; i++) {
cellSpacings[i] = 0 == i % 2
? null != verticalBorderSpacing ? (float) verticalBorderSpacing : 0f
: null != horizontalBorderSpacing ? (float) horizontalBorderSpacing : 0f;
}
applySpacings(rect, cellSpacings, reverse);
} else {
// Do nothing here. Spacings are meaningless if borders are collapsed.
}
return rect;
}
/**
* Applies given spacings on the given rectangle.
*
* @param rect a rectangle spacings will be applied on
* @param spacings the spacings to be applied on the given rectangle
* @param reverse indicates whether spacings will be applied
* inside (in case of false) or outside (in case of true) the rectangle.
*
* @return a {@link Rectangle border box} of the renderer
*/
protected Rectangle applySpacings(Rectangle rect, float[] spacings, boolean reverse) {
if (BorderCollapsePropertyValue.SEPARATE.equals(parent.getProperty(Property.BORDER_COLLAPSE))) {
rect.applyMargins(spacings[0] / 2, spacings[1] / 2, spacings[2] / 2, spacings[3] / 2, reverse);
} else {
// Do nothing here. Spacings are meaningless if borders are collapsed.
}
return rect;
}
/**
* Gets a new instance of this class to be used as a next renderer, after this renderer is used, if
* {@link #layout(LayoutContext)} is called more than once.
*
*
* If a renderer overflows to the next area, iText uses this method to create a renderer
* for the overflow part. So if one wants to extend {@link CellRenderer}, one should override
* this method: otherwise the default method will be used and thus the default rather than the custom
* renderer will be created.
* @return new renderer instance
*/
@Override
public IRenderer getNextRenderer() {
logWarningIfGetNextRendererNotOverridden(CellRenderer.class, this.getClass());
return new CellRenderer((Cell) getModelElement());
}
}