kwqrendertreedebug.cpp

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/*
 * Copyright (C) 2004 Apple Computer, Inc.  All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 *
 * THIS SOFTWARE IS PROVIDED BY APPLE COMPUTER, INC. ``AS IS'' AND ANY
 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
 * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL APPLE COMPUTER, INC. OR
 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
 * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 
 */

#include "KWQRenderTreeDebug.h"

#include "dom_docimpl.h"
#include "dom_position.h"
#include "htmltags.h"
#include "jsediting.h"
#include "khtmlview.h"
#include "render_canvas.h"
#include "render_replaced.h"
#include "render_table.h"
#include "render_text.h"
#include "render_br.h"
#include "selection.h"

#include "KWQKHTMLPart.h"
#include "KWQTextStream.h"

using DOM::DocumentImpl;
using DOM::JSEditor;
using DOM::NodeImpl;
using DOM::Position;

using khtml::BorderValue;
using khtml::EBorderStyle;
using khtml::InlineTextBox;
using khtml::RenderLayer;
using khtml::RenderObject;
using khtml::RenderTableCell;
using khtml::RenderWidget;
using khtml::RenderText;
using khtml::RenderCanvas;
using khtml::RenderBR;
using khtml::Selection;
using khtml::transparentColor;

static void writeLayers(QTextStream &ts, const RenderLayer* rootLayer, RenderLayer* l,
                        const QRect& paintDirtyRect, int indent=0);

static QTextStream &operator<<(QTextStream &ts, const QRect &r)
{
    return ts << "at (" << r.x() << "," << r.y() << ") size " << r.width() << "x" << r.height();
}

static void writeIndent(QTextStream &ts, int indent)
{
    for (int i = 0; i != indent; ++i) {
        ts << "  ";
    }
}

static void printBorderStyle(QTextStream &ts, const RenderObject &o, const EBorderStyle borderStyle)
{
    switch (borderStyle) {
        case khtml::BNONE:
            ts << "none";
            break;
        case khtml::BHIDDEN:
            ts << "hidden";
            break;
        case khtml::INSET:
            ts << "inset";
            break;
        case khtml::GROOVE:
            ts << "groove";
            break;
        case khtml::RIDGE:
            ts << "ridge";
            break;
        case khtml::OUTSET:
            ts << "outset";
            break;
        case khtml::DOTTED:
            ts << "dotted";
            break;
        case khtml::DASHED:
            ts << "dashed";
            break;
        case khtml::SOLID:
            ts << "solid";
            break;
        case khtml::DOUBLE:
            ts << "double";
            break;
    }
    
    ts << " ";
}

static QString getTagName(NodeImpl *n)
{
    if (n->isDocumentNode())
        return "";
    if (n->id() <= ID_LAST_TAG)
        return getTagName(n->id()).string();
    return n->nodeName().string();
}

static QTextStream &operator<<(QTextStream &ts, const RenderObject &o)
{
    ts << o.renderName();
    
    if (o.style() && o.style()->zIndex()) {
        ts << " zI: " << o.style()->zIndex();
    }
    
    if (o.element()) {
        QString tagName = getTagName(o.element());
        if (!tagName.isEmpty()) {
            ts << " {" << tagName << "}";
        }
    }
    
    // FIXME: Will remove this <br> code once all layout tests pass.  Until then, we can't really change
    // all the results easily.
    bool usePositions = true;
    if (o.isBR()) {
        const RenderBR* br = static_cast<const RenderBR*>(&o);
        usePositions = (br->firstTextBox() && br->firstTextBox()->isText());
    }
    QRect r(usePositions ? o.xPos() : 0, usePositions ? o.yPos() : 0, o.width(), o.height());
    ts << " " << r;
    
    if (!o.isText()) {
        if (o.parent() && (o.parent()->style()->color() != o.style()->color()))
            ts << " [color=" << o.style()->color().name() << "]";
        if (o.parent() && (o.parent()->style()->backgroundColor() != o.style()->backgroundColor()) &&
            o.style()->backgroundColor().isValid() && 
        o.style()->backgroundColor().rgb() != khtml::transparentColor)
        // Do not dump invalid or transparent backgrounds, since that is the default.
            ts << " [bgcolor=" << o.style()->backgroundColor().name() << "]";
    
        if (o.borderTop() || o.borderRight() || o.borderBottom() || o.borderLeft()) {
            ts << " [border:";
            
            BorderValue prevBorder;
            if (o.style()->borderTop() != prevBorder) {
                prevBorder = o.style()->borderTop();
                if (!o.borderTop())
                    ts << " none";
                else {
                    ts << " (" << o.borderTop() << "px ";
                    printBorderStyle(ts, o, o.style()->borderTopStyle());
                    QColor col = o.style()->borderTopColor();
                    if (!col.isValid()) col = o.style()->color();
                    ts << col.name() << ")";
                }
            }
            
            if (o.style()->borderRight() != prevBorder) {
                prevBorder = o.style()->borderRight();
                if (!o.borderRight())
                    ts << " none";
                else {
                    ts << " (" << o.borderRight() << "px ";
                    printBorderStyle(ts, o, o.style()->borderRightStyle());
                    QColor col = o.style()->borderRightColor();
                    if (!col.isValid()) col = o.style()->color();
                    ts << col.name() << ")";
                }
            }
            
            if (o.style()->borderBottom() != prevBorder) {
                prevBorder = o.style()->borderBottom();
                if (!o.borderBottom())
                    ts << " none";
                else {
                    ts << " (" << o.borderBottom() << "px ";
                    printBorderStyle(ts, o, o.style()->borderBottomStyle());
                    QColor col = o.style()->borderBottomColor();
                    if (!col.isValid()) col = o.style()->color();
                    ts << col.name() << ")";
                }
            }
            
            if (o.style()->borderLeft() != prevBorder) {
                prevBorder = o.style()->borderLeft();
                if (!o.borderLeft())
                    ts << " none";
                else {                    
                    ts << " (" << o.borderLeft() << "px ";
                    printBorderStyle(ts, o, o.style()->borderLeftStyle());
                    QColor col = o.style()->borderLeftColor();
                    if (!col.isValid()) col = o.style()->color();
                    ts << col.name() << ")";
                }
            }
            
            ts << "]";
        }
    }
    
    if (o.isTableCell()) {
        const RenderTableCell &c = static_cast<const RenderTableCell &>(o);
        ts << " [r=" << c.row() << " c=" << c.col() << " rs=" << c.rowSpan() << " cs=" << c.colSpan() << "]";
    }

    return ts;
}

static QString quoteAndEscapeNonPrintables(const QString &s)
{
    QString result;
    result += '"';
    for (uint i = 0; i != s.length(); ++i) {
        QChar c = s.at(i);
        if (c == '\\') {
            result += "\\\\";
        } else if (c == '"') {
            result += "\\\"";
        } else if (c == '\n' || c.unicode() == 0x00A0) {