1 /*

     2  * Copyright (C) 2006, 2007, 2008 Apple Inc. All rights reserved.

     3  * Copyright (C) 2007 Alp Toker <alp@atoker.com>

     4  *

     5  * Redistribution and use in source and binary forms, with or without

     6  * modification, are permitted provided that the following conditions

     7  * are met:

     8  * 1. Redistributions of source code must retain the above copyright

     9  *    notice, this list of conditions and the following disclaimer.

    10  * 2. Redistributions in binary form must reproduce the above copyright

    11  *    notice, this list of conditions and the following disclaimer in the

    12  *    documentation and/or other materials provided with the distribution.

    13  *

    14  * THIS SOFTWARE IS PROVIDED BY APPLE COMPUTER, INC. ``AS IS'' AND ANY

    15  * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE

    16  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR

    17  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL APPLE COMPUTER, INC. OR

    18  * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,

    19  * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,

    20  * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR

    21  * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY

    22  * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT

    23  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE

    24  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 

    25  */

    26 

    27 #include "config.h"

    28 #include "CanvasGradient.h"

    29 

    30 #include "CSSParser.h"

    31 #include "ExceptionCode.h"

    32 

    33 namespace WebCore {

    34 

    35 CanvasGradient::CanvasGradient(const FloatPoint& p0, const FloatPoint& p1)

    36     : m_gradient(Gradient::create(p0, p1))

    37     , m_dashbardCompatibilityMode(false)

    38 {

    39 }

    40 

    41 CanvasGradient::CanvasGradient(const FloatPoint& p0, float r0, const FloatPoint& p1, float r1)

    42     : m_gradient(Gradient::create(p0, r0, p1, r1))

    43     , m_dashbardCompatibilityMode(false)

    44 {

    45 }

    46 

    47 void CanvasGradient::addColorStop(float value, const String& color, ExceptionCode& ec)

    48 {

    49     if (!(value >= 0 && value <= 1.0f)) {

    50         ec = INDEX_SIZE_ERR;

    51         return;

    52     }

    53 

    54     RGBA32 rgba = 0;

    55     if (!CSSParser::parseColor(rgba, color)) {

    56         if (!m_dashbardCompatibilityMode)

    57             ec = SYNTAX_ERR;

    58         return;

    59     }

    60 

    61     m_gradient->addColorStop(value, Color(rgba));

    62 }

    63 

    64 } // namespace