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Cobra is the rendering engine designed for LoboBrowser
/*
GNU LESSER GENERAL PUBLIC LICENSE
Copyright (C) 2006 The Lobo Project
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
This library 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
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with this library; if not, write to the Free Software
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
Contact info: [email protected]
*/
/*
* Created on Nov 19, 2005
*/
package org.cobraparser.html.renderer;
import java.awt.Color;
import java.awt.Dimension;
import java.awt.Font;
import java.awt.Graphics;
import java.awt.Insets;
import java.awt.Rectangle;
import java.awt.event.MouseEvent;
import java.util.Collection;
import java.util.Collections;
import java.util.HashMap;
import java.util.Iterator;
import java.util.List;
import java.util.Map;
import java.util.SortedSet;
import java.util.TreeSet;
import org.eclipse.jdt.annotation.NonNull;
import org.cobraparser.html.HtmlRendererContext;
import org.cobraparser.html.domimpl.HTMLElementImpl;
import org.cobraparser.html.domimpl.ModelNode;
import org.cobraparser.html.renderer.TableMatrix.RTableRowGroup;
import org.cobraparser.html.style.RenderState;
import org.cobraparser.html.style.RenderThreadState;
import org.cobraparser.ua.UserAgentContext;
import org.cobraparser.util.CollectionUtilities;
class RTable extends BaseBlockyRenderable {
private static final int MAX_CACHE_SIZE = 10;
private final Map cachedLayout = new HashMap<>(5);
private final TableMatrix tableMatrix;
private SortedSet<@NonNull PositionedRenderable> positionedRenderables;
private int otherOrdinal;
private LayoutKey lastLayoutKey = null;
private LayoutValue lastLayoutValue = null;
public RTable(final HTMLElementImpl modelNode, final UserAgentContext pcontext, final HtmlRendererContext rcontext,
final FrameContext frameContext,
final RenderableContainer container) {
super(container, modelNode, pcontext);
this.tableMatrix = new TableMatrix(modelNode, pcontext, rcontext, frameContext, this, this);
}
@Override
public void paintShifted(final Graphics g) {
final RenderState rs = this.modelNode.getRenderState();
if ((rs != null) && (rs.getVisibility() != RenderState.VISIBILITY_VISIBLE)) {
// Just don't paint it.
return;
}
this.prePaint(g);
final Dimension size = this.getSize();
// TODO: No scrollbars
final TableMatrix tm = this.tableMatrix;
tm.paint(g, size);
final Collection prs = this.positionedRenderables;
if (prs != null) {
final Iterator i = prs.iterator();
while (i.hasNext()) {
final PositionedRenderable pr = i.next();
pr.paint(g);
/*
final BoundableRenderable r = pr.renderable;
r.paintTranslated(g);
*/
}
}
}
@Override
public void doLayout(final int availWidth, final int availHeight, final boolean sizeOnly) {
final Map cachedLayout = this.cachedLayout;
final RenderState rs = this.modelNode.getRenderState();
final int whitespace = rs == null ? RenderState.WS_NORMAL : rs.getWhiteSpace();
final Font font = rs == null ? null : rs.getFont();
// Having whiteSpace == NOWRAP and having a NOWRAP override
// are not exactly the same thing.
final boolean overrideNoWrap = RenderThreadState.getState().overrideNoWrap;
final LayoutKey layoutKey = new LayoutKey(availWidth, availHeight, whitespace, font, overrideNoWrap);
LayoutValue layoutValue;
if (sizeOnly) {
layoutValue = cachedLayout.get(layoutKey);
} else {
if (java.util.Objects.equals(layoutKey, this.lastLayoutKey)) {
layoutValue = this.lastLayoutValue;
} else {
layoutValue = null;
}
}
if (layoutValue == null) {
final Collection prs = this.positionedRenderables;
if (prs != null) {
prs.clear();
}
this.otherOrdinal = 0;
this.clearGUIComponents();
this.clearDelayedPairs();
this.applyStyle(availWidth, availHeight);
final TableMatrix tm = this.tableMatrix;
final Insets insets = this.getInsets(false, false);
tm.reset(insets, availWidth, availHeight);
// TODO: No scrollbars
tm.build(availWidth, availHeight, sizeOnly);
tm.doLayout(insets);
// Import applicable delayed pairs.
// Only needs to be done if layout was forced. Otherwise, they should've been imported already.
final Collection pairs = this.delayedPairs;
if (pairs != null) {
final Iterator i = pairs.iterator();
while (i.hasNext()) {
final DelayedPair pair = i.next();
if (pair.containingBlock == this) {
this.importDelayedPair(pair);
}
}
}
layoutValue = new LayoutValue(tm.getTableWidth(), tm.getTableHeight());
if (sizeOnly) {
if (cachedLayout.size() > MAX_CACHE_SIZE) {
// Unlikely, but we should ensure it's bounded.
cachedLayout.clear();
}
cachedLayout.put(layoutKey, layoutValue);
this.lastLayoutKey = null;
this.lastLayoutValue = null;
} else {
this.lastLayoutKey = layoutKey;
this.lastLayoutValue = layoutValue;
}
}
this.width = layoutValue.width;
this.height = layoutValue.height;
this.sendGUIComponentsToParent();
this.sendDelayedPairsToParent();
}
@Override
public void invalidateLayoutLocal() {
super.invalidateLayoutLocal();
this.cachedLayout.clear();
this.lastLayoutKey = null;
this.lastLayoutValue = null;
}
/*
* (non-Javadoc)
*
* @see org.xamjwg.html.renderer.BoundableRenderable#getRenderablePoint(int,
* int)
*/
public RenderableSpot getLowestRenderableSpot(final int x, final int y) {
final Collection prs = this.positionedRenderables;
if (prs != null) {
final Iterator i = prs.iterator();
while (i.hasNext()) {
final PositionedRenderable pr = i.next();
final BoundableRenderable r = pr.renderable;
final int childX = x - r.getVisualX();
final int childY = y - r.getVisualY();
final RenderableSpot rs = r.getLowestRenderableSpot(childX, childY);
if (rs != null) {
return rs;
}
}
}
final RenderableSpot rs = this.tableMatrix.getLowestRenderableSpot(x, y);
if (rs != null) {
return rs;
}
return new RenderableSpot(this, x, y);
}
/*
* (non-Javadoc)
*
* @see
* org.xamjwg.html.renderer.BoundableRenderable#onMouseClick(java.awt.event
* .MouseEvent, int, int)
*/
public boolean onMouseClick(final MouseEvent event, final int x, final int y) {
final Collection prs = this.positionedRenderables;
if (prs != null) {
final Iterator i = prs.iterator();
while (i.hasNext()) {
final PositionedRenderable pr = i.next();
final BoundableRenderable r = pr.renderable;
final Rectangle bounds = r.getVisualBounds();
if (bounds.contains(x, y)) {
final int childX = x - r.getVisualX();
final int childY = y - r.getVisualY();
if (!r.onMouseClick(event, childX, childY)) {
return false;
}
}
}
}
return this.tableMatrix.onMouseClick(event, x, y);
}
public boolean onDoubleClick(final MouseEvent event, final int x, final int y) {
final Collection prs = this.positionedRenderables;
if (prs != null) {
final Iterator i = prs.iterator();
while (i.hasNext()) {
final PositionedRenderable pr = i.next();
final BoundableRenderable r = pr.renderable;
final Rectangle bounds = r.getVisualBounds();
if (bounds.contains(x, y)) {
final int childX = x - r.getVisualX();
final int childY = y - r.getVisualY();
if (!r.onDoubleClick(event, childX, childY)) {
return false;
}
}
}
}
return this.tableMatrix.onDoubleClick(event, x, y);
}
/*
* (non-Javadoc)
*
* @see
* org.xamjwg.html.renderer.BoundableRenderable#onMouseDisarmed(java.awt.event
* .MouseEvent)
*/
public boolean onMouseDisarmed(final MouseEvent event) {
return this.tableMatrix.onMouseDisarmed(event);
}
/*
* (non-Javadoc)
*
* @see
* org.xamjwg.html.renderer.BoundableRenderable#onMousePressed(java.awt.event
* .MouseEvent, int, int)
*/
public boolean onMousePressed(final MouseEvent event, final int x, final int y) {
final Collection prs = this.positionedRenderables;
if (prs != null) {
final Iterator i = prs.iterator();
while (i.hasNext()) {
final PositionedRenderable pr = i.next();
final BoundableRenderable r = pr.renderable;
final Rectangle bounds = r.getVisualBounds();
if (bounds.contains(x, y)) {
final int childX = x - r.getVisualX();
final int childY = y - r.getVisualY();
if (!r.onMousePressed(event, childX, childY)) {
return false;
}
}
}
}
return this.tableMatrix.onMousePressed(event, x, y);
}
/*
* (non-Javadoc)
*
* @see
* org.xamjwg.html.renderer.BoundableRenderable#onMouseReleased(java.awt.event
* .MouseEvent, int, int)
*/
public boolean onMouseReleased(final MouseEvent event, final int x, final int y) {
final Collection prs = this.positionedRenderables;
if (prs != null) {
final Iterator i = prs.iterator();
while (i.hasNext()) {
final PositionedRenderable pr = i.next();
final BoundableRenderable r = pr.renderable;
final Rectangle bounds = r.getVisualBounds();
if (bounds.contains(x, y)) {
final int childX = x - r.getVisualX();
final int childY = y - r.getVisualY();
if (!r.onMouseReleased(event, childX, childY)) {
return false;
}
}
}
}
return this.tableMatrix.onMouseReleased(event, x, y);
}
/*
* (non-Javadoc)
*
* @see org.xamjwg.html.renderer.RCollection#getRenderables()
*/
public Iterator<@NonNull ? extends Renderable> getRenderables(final boolean topFirst) {
final Collection<@NonNull PositionedRenderable> prs = this.positionedRenderables;
if (prs != null) {
final List<@NonNull Renderable> c = new java.util.LinkedList<>();
final Iterator<@NonNull PositionedRenderable> i = prs.iterator();
while (i.hasNext()) {
final PositionedRenderable pr = i.next();
final BoundableRenderable r = pr.renderable;
c.add(r);
}
final Iterator<@NonNull RAbstractCell> i2 = this.tableMatrix.getCells();
while (i2.hasNext()) {
c.add(i2.next());
}
final Iterator<@NonNull RTableRowGroup> i3 = this.tableMatrix.getRowGroups();
while (i3.hasNext()) {
c.add(i3.next());
}
if (topFirst) {
Collections.reverse(c);
}
return c.iterator();
} else {
final Iterator<@NonNull Renderable>[] rs = new Iterator[] {this.tableMatrix.getCells(), this.tableMatrix.getRowGroups()};
return CollectionUtilities.iteratorUnion(rs);
}
}
public void repaint(final ModelNode modelNode) {
// NOP
}
/*
* (non-Javadoc)
*
* @see org.xamjwg.html.renderer.RenderableContainer#getBackground()
*/
public Color getPaintedBackgroundColor() {
return this.container.getPaintedBackgroundColor();
}
private final void addPositionedRenderable(final @NonNull BoundableRenderable renderable, final boolean verticalAlignable, final boolean isFloat, final boolean isFixed) {
// Expected to be called only in GUI thread.
SortedSet<@NonNull PositionedRenderable> others = this.positionedRenderables;
if (others == null) {
others = new TreeSet<>(new ZIndexComparator());
this.positionedRenderables = others;
}
others.add(new PositionedRenderable(renderable, verticalAlignable, this.otherOrdinal++, isFloat, isFixed, false));
renderable.setParent(this);
if (renderable instanceof RUIControl) {
this.container.addComponent(((RUIControl) renderable).widget.getComponent());
}
}
private void importDelayedPair(final DelayedPair pair) {
BoundableRenderable r = pair.positionPairChild();
// final BoundableRenderable r = pair.child;
this.addPositionedRenderable(r, false, false, pair.isFixed);
}
@Override
public String toString() {
return "RTable[this=" + System.identityHashCode(this) + ",node=" + this.modelNode + "]";
}
private static class LayoutKey {
public final int availWidth;
public final int availHeight;
public final int whitespace;
public final Font font;
public final boolean overrideNoWrap;
public LayoutKey(final int availWidth, final int availHeight, final int whitespace, final Font font, final boolean overrideNoWrap) {
super();
this.availWidth = availWidth;
this.availHeight = availHeight;
this.whitespace = whitespace;
this.font = font;
this.overrideNoWrap = overrideNoWrap;
}
@Override
public boolean equals(final Object obj) {
if (obj == this) {
return true;
}
if (!(obj instanceof LayoutKey)) {
return false;
}
final LayoutKey other = (LayoutKey) obj;
return (other.availWidth == this.availWidth) && (other.availHeight == this.availHeight) && (other.whitespace == this.whitespace)
&& (other.overrideNoWrap == this.overrideNoWrap) && java.util.Objects.equals(other.font, this.font);
}
@Override
public int hashCode() {
final Font font = this.font;
return ((this.availWidth * 1000) + this.availHeight) ^ (font == null ? 0 : font.hashCode()) ^ this.whitespace;
}
}
private static class LayoutValue {
public final int width;
public final int height;
public LayoutValue(final int width, final int height) {
this.width = width;
this.height = height;
}
}
@Override
public void layout(int availWidth, int availHeight, boolean b, boolean c, FloatingBoundsSource source, boolean sizeOnly) {
this.doLayout(availWidth, availHeight, sizeOnly);
}
}