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Library for creating nicely layouted PDF documents based on PDFBox
/*
* Copyright (C) 2014-2024 Philip Helger (www.helger.com)
* philip[at]helger[dot]com
*
* 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.helger.pdflayout.element.hbox;
import java.io.IOException;
import java.util.function.Consumer;
import java.util.function.ObjIntConsumer;
import javax.annotation.CheckForSigned;
import javax.annotation.Nonnegative;
import javax.annotation.Nonnull;
import javax.annotation.Nullable;
import javax.annotation.OverridingMethodsMustInvokeSuper;
import com.helger.commons.ValueEnforcer;
import com.helger.commons.annotation.ReturnsMutableCopy;
import com.helger.commons.collection.impl.CommonsArrayList;
import com.helger.commons.collection.impl.ICommonsList;
import com.helger.commons.state.EChange;
import com.helger.commons.string.ToStringGenerator;
import com.helger.pdflayout.base.AbstractPLElement;
import com.helger.pdflayout.base.AbstractPLRenderableObject;
import com.helger.pdflayout.base.IPLRenderableObject;
import com.helger.pdflayout.base.IPLSplittableObject;
import com.helger.pdflayout.base.IPLVisitor;
import com.helger.pdflayout.base.PLElementWithSize;
import com.helger.pdflayout.base.PLSplitResult;
import com.helger.pdflayout.debug.PLDebugLog;
import com.helger.pdflayout.element.special.PLSpacerX;
import com.helger.pdflayout.render.PageRenderContext;
import com.helger.pdflayout.render.PreparationContext;
import com.helger.pdflayout.spec.SizeSpec;
import com.helger.pdflayout.spec.WidthSpec;
/**
* Horizontal box - groups several columns. Each column was a width with one of
* the supported types:
*
* - absolute - the width is explicitly specified in user units
* - percentage - the width is specified in percentage of the
* surrounding element
* - star - the width of all columns with this type is evenly spaced on
* the available width. So if at least one 'star' width column is available, the
* hbox uses the complete available width.
* - auto - the width of the column is determined by the width of the
* content. The maximum width assigned to this column type is the same as for
* 'star' width columns.
*
*
* @author Philip Helger
* @param
* Implementation type
*/
public abstract class AbstractPLHBox > extends
AbstractPLRenderableObject implements
IPLSplittableObject
{
private final ICommonsList m_aColumns = new CommonsArrayList <> ();
private boolean m_bVertSplittable = DEFAULT_VERT_SPLITTABLE;
/** prepared column size (with outline of contained element) */
private SizeSpec [] m_aPreparedColumnSizes;
/** prepared element size (without outline) */
private SizeSpec [] m_aPreparedElementSizes;
public AbstractPLHBox ()
{}
@Override
@Nonnull
@OverridingMethodsMustInvokeSuper
public IMPLTYPE setBasicDataFrom (@Nonnull final IMPLTYPE aSource)
{
super.setBasicDataFrom (aSource);
setVertSplittable (aSource.isVertSplittable ());
return thisAsT ();
}
/**
* @return The number of columns. Always ≥ 0.
*/
@Nonnegative
public int getColumnCount ()
{
return m_aColumns.size ();
}
/**
* @return All columns. Never null.
*/
@Nonnull
@ReturnsMutableCopy
public ICommonsList getAllColumns ()
{
return m_aColumns.getClone ();
}
/**
* @return All columns. Never null.
*/
@Nonnull
@ReturnsMutableCopy
public Iterable getColumns ()
{
return m_aColumns;
}
public void forEachColumn (@Nonnull final Consumer aConsumer)
{
m_aColumns.forEach (aConsumer);
}
public void forEachColumnByIndex (@Nonnull final ObjIntConsumer aConsumer)
{
m_aColumns.forEachByIndex (aConsumer);
}
@Nullable
public PLHBoxColumn getColumnAtIndex (@Nonnegative final int nIndex)
{
return m_aColumns.getAtIndex (nIndex);
}
@Nullable
public PLHBoxColumn getFirstColumn ()
{
return m_aColumns.getFirstOrNull ();
}
@Nullable
public PLHBoxColumn getLastColumn ()
{
return m_aColumns.getLastOrNull ();
}
@Nullable
public IPLRenderableObject getColumnElementAtIndex (@Nonnegative final int nIndex)
{
final PLHBoxColumn aColumn = getColumnAtIndex (nIndex);
return aColumn == null ? null : aColumn.getElement ();
}
@Nullable
public IPLRenderableObject getFirstColumnElement ()
{
final PLHBoxColumn aColumn = getFirstColumn ();
return aColumn == null ? null : aColumn.getElement ();
}
@Nullable
public IPLRenderableObject getLastColumnElement ()
{
final PLHBoxColumn aColumn = getLastColumn ();
return aColumn == null ? null : aColumn.getElement ();
}
private void _addAndReturnColumn (@CheckForSigned final int nIndex, @Nonnull final PLHBoxColumn aColumn)
{
internalCheckNotPrepared ();
if (nIndex < 0 || nIndex >= m_aColumns.size ())
m_aColumns.add (aColumn);
else
m_aColumns.add (nIndex, aColumn);
}
@Nonnull
public PLHBoxColumn addAndReturnColumn (@Nonnull final IPLRenderableObject aElement,
@Nonnull final WidthSpec aWidth)
{
return addAndReturnColumn (-1, aElement, aWidth);
}
@Nonnull
public IMPLTYPE addColumn (@Nonnull final IPLRenderableObject aElement, @Nonnull final WidthSpec aWidth)
{
addAndReturnColumn (-1, aElement, aWidth);
return thisAsT ();
}
@Nonnull
public PLHBoxColumn addAndReturnColumn (@CheckForSigned final int nIndex,
@Nonnull final IPLRenderableObject aElement,
@Nonnull final WidthSpec aWidth)
{
final PLHBoxColumn aColumn = new PLHBoxColumn (aElement, aWidth);
_addAndReturnColumn (nIndex, aColumn);
return aColumn;
}
@Nonnull
public IMPLTYPE addColumn (@CheckForSigned final int nIndex,
@Nonnull final IPLRenderableObject aElement,
@Nonnull final WidthSpec aWidth)
{
addAndReturnColumn (nIndex, aElement, aWidth);
return thisAsT ();
}
@Nonnull
public IMPLTYPE removeColumn (@Nonnegative final int nIndex)
{
ValueEnforcer.isGE0 (nIndex, "Index");
internalCheckNotPrepared ();
m_aColumns.removeAtIndex (nIndex);
return thisAsT ();
}
public final boolean isVertSplittable ()
{
return m_bVertSplittable;
}
@Nonnull
public final IMPLTYPE setVertSplittable (final boolean bVertSplittable)
{
m_bVertSplittable = bVertSplittable;
return thisAsT ();
}
public boolean containsAnyVertSplittableElement ()
{
return m_aColumns.containsAny (x -> x.getElement ().isVertSplittable ());
}
@Override
@Nonnull
public EChange visit (@Nonnull final IPLVisitor aVisitor) throws IOException
{
EChange ret = EChange.UNCHANGED;
for (final PLHBoxColumn aColumn : m_aColumns)
ret = ret.or (aColumn.getElement ().visit (aVisitor));
return ret;
}
@Override
@OverridingMethodsMustInvokeSuper
protected SizeSpec onPrepare (@Nonnull final PreparationContext aCtx)
{
m_aPreparedColumnSizes = new SizeSpec [m_aColumns.size ()];
m_aPreparedElementSizes = new SizeSpec [m_aColumns.size ()];
final float fElementWidth = aCtx.getAvailableWidth () - getOutlineXSum ();
final float fElementHeight = aCtx.getAvailableHeight () - getOutlineYSum ();
float fUsedWidthFull = 0;
float fMaxColumnHeightFull = 0;
float fMaxContentHeightNet = 0;
int nStarColumns = 0;
int nAutoColumns = 0;
for (final PLHBoxColumn aColumn : m_aColumns)
switch (aColumn.getWidth ().getType ())
{
case STAR:
++nStarColumns;
break;
case AUTO:
++nAutoColumns;
break;
}
int nIndex = 0;
float fRestWidth = fElementWidth;
// 1. prepare all absolute width items
{
for (final PLHBoxColumn aColumn : m_aColumns)
{
if (aColumn.getWidth ().isAbsolute ())
{
final IPLRenderableObject aElement = aColumn.getElement ();
// Full width of this element
final float fColumnWidth = aColumn.getWidth ().getEffectiveValue (fElementWidth);
// Prepare child element
final SizeSpec aElementPreparedSize = aElement.prepare (new PreparationContext (aCtx.getGlobalContext (),
fColumnWidth,
fElementHeight));
// Update used width
fUsedWidthFull += fColumnWidth;
fRestWidth -= fColumnWidth;
// Update used height
fMaxContentHeightNet = Math.max (fMaxContentHeightNet, aElementPreparedSize.getHeight ());
final float fColumnHeightFull = aElementPreparedSize.getHeight () + aElement.getOutlineYSum ();
fMaxColumnHeightFull = Math.max (fMaxColumnHeightFull, fColumnHeightFull);
// Remember width and height for element (without padding and margin)
m_aPreparedColumnSizes[nIndex] = new SizeSpec (fColumnWidth, fColumnHeightFull);
m_aPreparedElementSizes[nIndex] = aElementPreparedSize;
}
++nIndex;
}
}
// 2. prepare all auto widths items
{
// First pass: identify all auto columns that directly fit in their
// available column width
float fRemainingWidthAutoFull = 0;
float fUsedWidthAutoTooWide = 0;
// Full width of this element
final float fAvailableAutoColumnWidth = nAutoColumns + nStarColumns == 0 ? 0 : fRestWidth /
(nAutoColumns + nStarColumns);
final float fAvailableAutoColumnWidthAll = fAvailableAutoColumnWidth * nAutoColumns;
final SizeSpec [] aTooWideAutoCols = new SizeSpec [m_aColumns.size ()];
nIndex = 0;
for (final PLHBoxColumn aColumn : m_aColumns)
{
if (aColumn.getWidth ().isAuto ())
{
final IPLRenderableObject aElement = aColumn.getElement ();
// Prepare child element
final SizeSpec aElementPreparedSize = aElement.prepare (new PreparationContext (aCtx.getGlobalContext (),
fAvailableAutoColumnWidthAll,
fElementHeight));
// Use the used size of the element as the column width
final float fColumnWidthFull = aElementPreparedSize.getWidth () + aElement.getOutlineXSum ();
if (fColumnWidthFull <= fAvailableAutoColumnWidth)
{
// Update used width
fUsedWidthFull += fColumnWidthFull;
// What's left for other auto columns?
fRemainingWidthAutoFull += fAvailableAutoColumnWidth - fColumnWidthFull;
// Update used height
fMaxContentHeightNet = Math.max (fMaxContentHeightNet, aElementPreparedSize.getHeight ());
final float fColumnHeightFull = aElementPreparedSize.getHeight () + aElement.getOutlineYSum ();
fMaxColumnHeightFull = Math.max (fMaxColumnHeightFull, fColumnHeightFull);
// Remember width and height for element (without padding and
// margin)
m_aPreparedColumnSizes[nIndex] = new SizeSpec (fColumnWidthFull, fColumnHeightFull);
m_aPreparedElementSizes[nIndex] = aElementPreparedSize;
}
else
{
// Remember prepared sized
aTooWideAutoCols[nIndex] = aElementPreparedSize;
// The whole column width remains
fRemainingWidthAutoFull += fAvailableAutoColumnWidth;
// What would be used ideally
fUsedWidthAutoTooWide += fColumnWidthFull;
}
}
++nIndex;
}
// Second pass: split all too wide auto columns on fRemainingWidthAuto
nIndex = 0;
for (final PLHBoxColumn aColumn : m_aColumns)
{
// Only consider too-wide auto columns
if (aColumn.getWidth ().isAuto () && aTooWideAutoCols[nIndex] != null)
{
final IPLRenderableObject aElement = aColumn.getElement ();
// Previously prepared size including outline
final float fTooWideColumnWidth = aTooWideAutoCols[nIndex].getWidth () + aElement.getOutlineXSum ();
// Percentage of used width compared to total used width of all too
// wide columns (0-1)
final float fAvailableColumnWidthPerc = fUsedWidthAutoTooWide == 0 ? 0 : fTooWideColumnWidth /
fUsedWidthAutoTooWide;
// Use x% of remaining width
final float fNewAvailableColumnWidth = fRemainingWidthAutoFull * fAvailableColumnWidthPerc;
// Prepare child element
if (aElement instanceof AbstractPLRenderableObject )
((AbstractPLRenderableObject ) aElement).internalMarkAsNotPrepared ();
final SizeSpec aElementPreparedSize = aElement.prepare (new PreparationContext (aCtx.getGlobalContext (),
fNewAvailableColumnWidth,
fElementHeight));
// Use the used size of the element as the column width
final float fColumnWidthWidth = aElementPreparedSize.getWidth () + aElement.getOutlineXSum ();
// Update used width
fUsedWidthFull += fColumnWidthWidth;
// Update used height
fMaxContentHeightNet = Math.max (fMaxContentHeightNet, aElementPreparedSize.getHeight ());
final float fColumnHeightFull = aElementPreparedSize.getHeight () + aElement.getOutlineYSum ();
fMaxColumnHeightFull = Math.max (fMaxColumnHeightFull, fColumnHeightFull);
// Remember width and height for element (without padding and margin)
m_aPreparedColumnSizes[nIndex] = new SizeSpec (fColumnWidthWidth, fColumnHeightFull);
m_aPreparedElementSizes[nIndex] = aElementPreparedSize;
}
++nIndex;
}
// remaining unused parts of auto columns is automatically available to
// star width columns (based on fUsedWidthFull)
}
// 3. prepare all star widths items
{
fRestWidth = fElementWidth - fUsedWidthFull;
nIndex = 0;
for (final PLHBoxColumn aColumn : m_aColumns)
{
if (aColumn.getWidth ().isStar ())
{
final IPLRenderableObject aElement = aColumn.getElement ();
// Full width of this element
if (nStarColumns == 0)
throw new IllegalStateException ("Internal inconsistency");
final float fColumnWidthFull = fRestWidth / nStarColumns;
// Prepare child element
final SizeSpec aElementPreparedSize = aElement.prepare (new PreparationContext (aCtx.getGlobalContext (),
fColumnWidthFull,
fElementHeight));
// Update used width
fUsedWidthFull += fColumnWidthFull;
// Don't change rest-width!
// Update used height
fMaxContentHeightNet = Math.max (fMaxContentHeightNet, aElementPreparedSize.getHeight ());
final float fColumnHeightFull = aElementPreparedSize.getHeight () + aElement.getOutlineYSum ();
fMaxColumnHeightFull = Math.max (fMaxColumnHeightFull, fColumnHeightFull);
// Remember width and height for element (without padding and margin)
m_aPreparedColumnSizes[nIndex] = new SizeSpec (fColumnWidthFull, fColumnHeightFull);
m_aPreparedElementSizes[nIndex] = aElementPreparedSize;
}
++nIndex;
}
}
// Set min size for block elements
{
nIndex = 0;
for (final PLHBoxColumn aColumn : m_aColumns)
{
final IPLRenderableObject aElement = aColumn.getElement ();
if (aElement instanceof AbstractPLElement )
{
final AbstractPLElement aRealElement = (AbstractPLElement ) aElement;
// Set minimum column width and height as prepared width
aRealElement.setMinSize (m_aPreparedColumnSizes[nIndex].getWidth () - aRealElement.getOutlineXSum (),
fMaxContentHeightNet);
}
++nIndex;
}
}
// Small consistency check (with rounding included)
if (PLDebugLog.isDebugPrepare ())
{
if (fUsedWidthFull - fElementWidth > 0.01)
PLDebugLog.debugPrepare (this,
"uses more width (" + fUsedWidthFull + ") than available (" + fElementWidth + ")!");
if (fMaxColumnHeightFull - fElementHeight > 0.01 && !isVertSplittable ())
PLDebugLog.debugPrepare (this,
"uses more height (" +
fMaxColumnHeightFull +
") than available (" +
fElementHeight +
")!");
}
return new SizeSpec (fUsedWidthFull, fMaxColumnHeightFull);
}
@Override
protected void onMarkAsNotPrepared ()
{
m_aPreparedColumnSizes = null;
m_aPreparedElementSizes = null;
for (final PLHBoxColumn aColumn : m_aColumns)
if (aColumn.getElement () instanceof AbstractPLRenderableObject )
((AbstractPLRenderableObject ) aColumn.getElement ()).internalMarkAsNotPrepared ();
}
/**
* Create an empty element that is to be used as a place holder for splitting.
* The returned object must be prepared!
*
* @param aSrcObject
* Source element of the hbox to be split
* @param fWidth
* Column width
* @param fHeight
* Column height
* @return Never null.
*/
@Nonnull
protected AbstractPLRenderableObject internalCreateVertSplitEmptyElement (@Nonnull final IPLRenderableObject aSrcObject,
final float fWidth,
final float fHeight)
{
return PLSpacerX.createPrepared (fWidth, 0);
}
@Nullable
public PLSplitResult splitElementVert (final float fAvailableWidth, final float fAvailableHeight)
{
if (fAvailableHeight <= 0)
return null;
if (!containsAnyVertSplittableElement ())
{
// Splitting makes no sense
if (PLDebugLog.isDebugSplit ())
PLDebugLog.debugSplit (this, "cannot split because no vertical splittable elements are contained");
return null;
}
final int nCols = m_aColumns.size ();
// Check if height is exceeded
{
boolean bAnySplittingPossibleAndNecessary = false;
for (int i = 0; i < nCols; ++i)
{
// Is the current element higher and splittable?
final IPLRenderableObject aColumnElement = getColumnElementAtIndex (i);
if (aColumnElement.isVertSplittable ())
{
final float fColumnHeightFull = m_aPreparedColumnSizes[i].getHeight ();
if (fColumnHeightFull > fAvailableHeight)
{
bAnySplittingPossibleAndNecessary = true;
break;
}
}
}
if (!bAnySplittingPossibleAndNecessary)
{
// Splitting makes no sense
if (PLDebugLog.isDebugSplit ())
PLDebugLog.debugSplit (this,
"no need to split because all splittable elements easily fit into the available height (" +
fAvailableHeight +
")");
return null;
}
}
final AbstractPLHBox aHBox1 = internalCreateNewVertSplitObject (thisAsT ()).setID (getID () + "-1")
.setVertSplittable (false);
final AbstractPLHBox aHBox2 = internalCreateNewVertSplitObject (thisAsT ()).setID (getID () + "-2")
.setVertSplittable (true);
// Fill all columns with empty content
for (int i = 0; i < nCols; ++i)
{
final PLHBoxColumn aColumn = getColumnAtIndex (i);
final WidthSpec aColumnWidth = aColumn.getWidth ();
final float fColumnWidth = m_aPreparedColumnSizes[i].getWidth ();
final float fColumnHeight = fAvailableHeight;
// Create empty element with the same width as the original element
final IPLRenderableObject aSrcElement = aColumn.getElement ();
aHBox1.addColumn (internalCreateVertSplitEmptyElement (aSrcElement,
fColumnWidth,
fColumnHeight).setID (aSrcElement.getID () + "-1"),
aColumnWidth);
aHBox2.addColumn (internalCreateVertSplitEmptyElement (aSrcElement,
fColumnWidth,
fColumnHeight).setID (aSrcElement.getID () + "-2"),
aColumnWidth);
}
float fHBox1MaxHeightNet = 0;
float fHBox2MaxHeightNet = 0;
float fHBox1MaxHeightFull = 0;
float fHBox2MaxHeightFull = 0;
final SizeSpec [] aHBox1ColumnSizes = new SizeSpec [m_aPreparedColumnSizes.length];
final SizeSpec [] aHBox2ColumnSizes = new SizeSpec [m_aPreparedColumnSizes.length];
final SizeSpec [] aHBox1ElementSizes = new SizeSpec [m_aPreparedElementSizes.length];
final SizeSpec [] aHBox2ElementSizes = new SizeSpec [m_aPreparedElementSizes.length];
// Start splitting columns
boolean bDidSplitAnyColumn = false;
for (int nCol = 0; nCol < nCols; nCol++)
{
final IPLRenderableObject aColumnElement = getColumnElementAtIndex (nCol);
final boolean bIsSplittable = aColumnElement.isVertSplittable ();
final float fColumnWidth = m_aPreparedColumnSizes[nCol].getWidth ();
final float fColumnHeight = m_aPreparedColumnSizes[nCol].getHeight ();
final float fElementWidthNet = m_aPreparedElementSizes[nCol].getWidth ();
boolean bDidSplitColumn = false;
if (fColumnHeight > fAvailableHeight && bIsSplittable)
{
final float fSplitWidth = fElementWidthNet;
final float fSplitHeight = fAvailableHeight - aColumnElement.getOutlineYSum ();
if (PLDebugLog.isDebugSplit ())
PLDebugLog.debugSplit (this,
"Trying to split " +
aColumnElement.getDebugID () +
" with height " +
fColumnHeight +
" into pieces for remaining size " +
PLDebugLog.getWH (fSplitWidth, fSplitHeight));
// Use width and height without padding and margin!
final PLSplitResult aSplitResult = aColumnElement.getAsSplittable ()
.splitElementVert (fSplitWidth, fSplitHeight);
if (aSplitResult != null)
{
final IPLRenderableObject aHBox1Element = aSplitResult.getFirstElement ().getElement ();
aHBox1.getColumnAtIndex (nCol).internalSetElement (aHBox1Element);
final IPLRenderableObject aHBox2Element = aSplitResult.getSecondElement ().getElement ();
aHBox2.getColumnAtIndex (nCol).internalSetElement (aHBox2Element);
// Use the full height, because the column itself has no padding or
// margin!
aHBox1ColumnSizes[nCol] = new SizeSpec (fColumnWidth, aSplitResult.getFirstElement ().getHeightFull ());
aHBox2ColumnSizes[nCol] = new SizeSpec (fColumnWidth, aSplitResult.getSecondElement ().getHeightFull ());
aHBox1ElementSizes[nCol] = new SizeSpec (fElementWidthNet, aSplitResult.getFirstElement ().getHeight ());
aHBox2ElementSizes[nCol] = new SizeSpec (fElementWidthNet, aSplitResult.getSecondElement ().getHeight ());
bDidSplitColumn = true;
bDidSplitAnyColumn = true;
if (PLDebugLog.isDebugSplit ())
PLDebugLog.debugSplit (this,
"Split column element " +
aColumnElement.getDebugID () +
" (Column " +
nCol +
") into pieces: " +
aHBox1Element.getDebugID () +
" (" +
aSplitResult.getFirstElement ().getWidth () +
"+" +
aHBox1Element.getOutlineXSum () +
" & " +
aSplitResult.getFirstElement ().getHeight () +
"+" +
aHBox1Element.getOutlineYSum () +
") and " +
aHBox2Element.getDebugID () +
" (" +
aSplitResult.getSecondElement ().getWidth () +
"+" +
aHBox2Element.getOutlineXSum () +
" & " +
aSplitResult.getSecondElement ().getHeight () +
"+" +
aHBox2Element.getOutlineYSum () +
") for available height " +
fAvailableHeight);
}
else
{
if (PLDebugLog.isDebugSplit ())
PLDebugLog.debugSplit (this,
"Failed to split column element " +
aColumnElement.getDebugID () +
" (Column " +
nCol +
") with height " +
fColumnHeight +
" into pieces for available height " +
fAvailableHeight);
}
}
if (!bDidSplitColumn)
{
// No splitting and cell fits totally in available height
aHBox1.getColumnAtIndex (nCol).internalSetElement (aColumnElement);
// Use "as-is sizes" and not render sizes
aHBox1ColumnSizes[nCol] = new SizeSpec (fColumnWidth,
aColumnElement.getPreparedHeight () + aColumnElement.getOutlineYSum ());
aHBox2ColumnSizes[nCol] = new SizeSpec (fColumnWidth, 0);
aHBox1ElementSizes[nCol] = new SizeSpec (fElementWidthNet, aColumnElement.getPreparedHeight ());
aHBox2ElementSizes[nCol] = new SizeSpec (fElementWidthNet, 0);
}
// calculate max column height
fHBox1MaxHeightNet = Math.max (fHBox1MaxHeightNet, aHBox1ElementSizes[nCol].getHeight ());
fHBox2MaxHeightNet = Math.max (fHBox2MaxHeightNet, aHBox2ElementSizes[nCol].getHeight ());
fHBox1MaxHeightFull = Math.max (fHBox1MaxHeightFull, aHBox1ColumnSizes[nCol].getHeight ());
fHBox2MaxHeightFull = Math.max (fHBox2MaxHeightFull, aHBox2ColumnSizes[nCol].getHeight ());
}
if (!bDidSplitAnyColumn)
{
// Nothing was splitted
if (PLDebugLog.isDebugSplit ())
PLDebugLog.debugSplit (this, "Weird: No column was split and the height is OK!");
return null;
}
// Set min size for block elements
{
for (int nIndex = 0; nIndex < m_aColumns.size (); ++nIndex)
{
final IPLRenderableObject aElement1 = aHBox1.getColumnElementAtIndex (nIndex);
if (aElement1 instanceof AbstractPLElement )
{
// Set minimum column width and height as prepared width
final AbstractPLElement aRealElement1 = (AbstractPLElement ) aElement1;
aRealElement1.setMinSize (m_aPreparedColumnSizes[nIndex].getWidth () - aRealElement1.getOutlineXSum (),
fHBox1MaxHeightNet);
}
final IPLRenderableObject aElement2 = aHBox2.getColumnElementAtIndex (nIndex);
if (aElement2 instanceof AbstractPLElement )
{
// Set minimum column width and height as prepared width
final AbstractPLElement aRealElement2 = (AbstractPLElement ) aElement2;
aRealElement2.setMinSize (m_aPreparedColumnSizes[nIndex].getWidth () - aRealElement2.getOutlineXSum (),
fHBox2MaxHeightNet);
}
}
}
// mark new hboxes as prepared
aHBox1.internalMarkAsPrepared (new SizeSpec (fAvailableWidth, fHBox1MaxHeightFull));
aHBox2.internalMarkAsPrepared (new SizeSpec (fAvailableWidth, fHBox2MaxHeightFull));
// set prepared column sizes
aHBox1.m_aPreparedColumnSizes = aHBox1ColumnSizes;
aHBox2.m_aPreparedColumnSizes = aHBox2ColumnSizes;
// set prepared element sizes
aHBox1.m_aPreparedElementSizes = aHBox1ElementSizes;
aHBox2.m_aPreparedElementSizes = aHBox2ElementSizes;
return new PLSplitResult (new PLElementWithSize (aHBox1, new SizeSpec (fAvailableWidth, fHBox1MaxHeightFull)),
new PLElementWithSize (aHBox2, new SizeSpec (fAvailableWidth, fHBox2MaxHeightFull)));
}
@Override
protected void onRender (@Nonnull final PageRenderContext aCtx) throws IOException
{
float fCurX = aCtx.getStartLeft ();
final float fStartY = aCtx.getStartTop ();
int nIndex = 0;
for (final PLHBoxColumn aColumn : m_aColumns)
{
final IPLRenderableObject aElement = aColumn.getElement ();
final float fColumnWidth = m_aPreparedColumnSizes[nIndex].getWidth ();
final float fColumnHeight = m_aPreparedColumnSizes[nIndex].getHeight ();
final PageRenderContext aItemCtx = new PageRenderContext (aCtx, fCurX, fStartY, fColumnWidth, fColumnHeight);
aElement.render (aItemCtx);
// Update X-pos
fCurX += fColumnWidth;
++nIndex;
}
}
@Override
public String toString ()
{
return ToStringGenerator.getDerived (super.toString ())
.append ("Columns", m_aColumns)
.append ("VertSplittable", m_bVertSplittable)
.appendIfNotNull ("PreparedColumnSize", m_aPreparedColumnSizes)
.appendIfNotNull ("PreparedElementSize", m_aPreparedElementSizes)
.getToString ();
}
}
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