1 /**

     2  * Copyright (C) 2003, 2006 Apple Computer, Inc.

     3  *

     4  * This library is free software; you can redistribute it and/or

     5  * modify it under the terms of the GNU Library General Public

     6  * License as published by the Free Software Foundation; either

     7  * version 2 of the License, or (at your option) any later version.

     8  *

     9  * This library is distributed in the hope that it will be useful,

    10  * but WITHOUT ANY WARRANTY; without even the implied warranty of

    11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU

    12  * Library General Public License for more details.

    13  *

    14  * You should have received a copy of the GNU Library General Public License

    15  * along with this library; see the file COPYING.LIB.  If not, write to

    16  * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,

    17  * Boston, MA 02110-1301, USA.

    18  */

    19 

    20 #include "config.h"

    21 #include "EllipsisBox.h"

    22 

    23 #include "Document.h"

    24 #include "GraphicsContext.h"

    25 #include "HitTestResult.h"

    26 #include "RootInlineBox.h"

    27 

    28 namespace WebCore {

    29 

    30 void EllipsisBox::paint(PaintInfo& paintInfo, int tx, int ty)

    31 {

    32     GraphicsContext* context = paintInfo.context;

    33     RenderStyle* style = m_renderer->style(m_firstLine);

    34     Color textColor = style->visitedDependentColor(CSSPropertyColor);

    35     if (textColor != context->fillColor())

    36         context->setFillColor(textColor, style->colorSpace());

    37     bool setShadow = false;

    38     if (style->textShadow()) {

    39         context->setShadow(IntSize(style->textShadow()->x(), style->textShadow()->y()),

    40                            style->textShadow()->blur(), style->textShadow()->color(), style->colorSpace());

    41         setShadow = true;

    42     }

    43 

    44     if (selectionState() != RenderObject::SelectionNone) {

    45         paintSelection(context, tx, ty, style, style->font());

    46 

    47         // Select the correct color for painting the text.

    48         Color foreground = paintInfo.forceBlackText ? Color::black : renderer()->selectionForegroundColor();

    49         if (foreground.isValid() && foreground != textColor)

    50             context->setFillColor(foreground, style->colorSpace());

    51     }

    52 

    53     const String& str = m_str;

    54     context->drawText(style->font(), TextRun(str.characters(), str.length(), false, 0, 0, false, style->visuallyOrdered()), IntPoint(m_x + tx, m_y + ty + style->font().ascent()));

    55 

    56     // Restore the regular fill color.

    57     if (textColor != context->fillColor())

    58         context->setFillColor(textColor, style->colorSpace());

    59 

    60     if (setShadow)

    61         context->clearShadow();

    62 

    63     if (m_markupBox) {

    64         // Paint the markup box

    65         tx += m_x + m_width - m_markupBox->x();

    66         ty += m_y + style->font().ascent() - (m_markupBox->y() + m_markupBox->renderer()->style(m_firstLine)->font().ascent());

    67         m_markupBox->paint(paintInfo, tx, ty);

    68     }

    69 }

    70 

    71 IntRect EllipsisBox::selectionRect(int tx, int ty)

    72 {

    73     RenderStyle* style = m_renderer->style(m_firstLine);

    74     const Font& f = style->font();

    75     return enclosingIntRect(f.selectionRectForText(TextRun(m_str.characters(), m_str.length(), false, 0, 0, false, style->visuallyOrdered()),

    76             IntPoint(m_x + tx, m_y + ty + root()->selectionTop()), root()->selectionHeight()));

    77 }

    78 

    79 void EllipsisBox::paintSelection(GraphicsContext* context, int tx, int ty, RenderStyle* style, const Font& font)

    80 {

    81     Color textColor = style->visitedDependentColor(CSSPropertyColor);

    82     Color c = m_renderer->selectionBackgroundColor();

    83     if (!c.isValid() || !c.alpha())

    84         return;

    85 

    86     // If the text color ends up being the same as the selection background, invert the selection

    87     // background.

    88     if (textColor == c)

    89         c = Color(0xff - c.red(), 0xff - c.green(), 0xff - c.blue());

    90 

    91     context->save();

    92     int y = root()->selectionTop();

    93     int h = root()->selectionHeight();

    94     context->clip(IntRect(m_x + tx, y + ty, m_width, h));

    95     context->drawHighlightForText(font, TextRun(m_str.characters(), m_str.length(), false, 0, 0, false, style->visuallyOrdered()),

    96         IntPoint(m_x + tx, m_y + ty + y), h, c, style->colorSpace());

    97     context->restore();

    98 }

    99 

   100 bool EllipsisBox::nodeAtPoint(const HitTestRequest& request, HitTestResult& result, int x, int y, int tx, int ty)

   101 {

   102     tx += m_x;

   103     ty += m_y;

   104 

   105     // Hit test the markup box.

   106     if (m_markupBox) {

   107         RenderStyle* style = m_renderer->style(m_firstLine);

   108         int mtx = tx + m_width - m_markupBox->x();

   109         int mty = ty + style->font().ascent() - (m_markupBox->y() + m_markupBox->renderer()->style(m_firstLine)->font().ascent());

   110         if (m_markupBox->nodeAtPoint(request, result, x, y, mtx, mty)) {

   111             renderer()->updateHitTestResult(result, IntPoint(x - mtx, y - mty));

   112             return true;

   113         }

   114     }

   115 

   116     IntRect boundsRect = IntRect(tx, ty, m_width, m_height);

   117     if (visibleToHitTesting() && boundsRect.intersects(result.rectFromPoint(x, y))) {

   118         renderer()->updateHitTestResult(result, IntPoint(x - tx, y - ty));

   119         if (!result.addNodeToRectBasedTestResult(renderer()->node(), x, y, boundsRect))

   120             return true;

   121     }

   122 

   123     return false;

   124 }

   125 

   126 } // namespace WebCore