Author: ianh
Date: 2009-04-28 23:17:13 -0700 (Tue, 28 Apr 2009)
New Revision: 3023
Modified:
index
source
Log:
[gow] (2) Disable shadows when they're at their default values.
Modified: index
===================================================================
--- index 2009-04-29 05:06:56 UTC (rev 3022)
+++ index 2009-04-29 06:17:13 UTC (rev 3023)
@@ -23448,8 +23448,16 @@
value is negative, infinite or NaN, in which case the new value must
be ignored.</p>
- <p>When shadows are drawn, they must be rendered as follows:</p>
+ <p><dfn id=when-shadows-are-drawn title="when shadows are drawn">Shadows are only drawn
+ if</dfn> either the opacity component of the alpha component of the
+ color of <code title=dom-context-2d-shadowColor><a href=#dom-context-2d-shadowcolor>shadowColor</a></code>
+ is non-zero, or the <code title=dom-context-2d-shadowBlur><a href=#dom-context-2d-shadowblur>shadowBlur</a></code> is non-zero, or
+ the <code title=dom-context-2d-shadowOffsetX><a href=#dom-context-2d-shadowoffsetx>shadowOffsetX</a></code>
+ is non-zero, or the <code title=dom-context-2d-shadowOffsetY><a href=#dom-context-2d-shadowoffsety>shadowOffsetY</a></code> is
+ non-zero.</p>
+ <p><a href=#when-shadows-are-drawn>When shadows are drawn</a>, they must be rendered as follows:</p>
+
<ol><li> <p>Let <var title="">A</var> be the source image for which a
shadow is being created.</p> </li>
@@ -24857,18 +24865,19 @@
and the stroke must itself also be subjected to the current
transformation matrix.</li>
- <li><p>Render the shadow from image <var title="">A</var>, using
- the current shadow styles, creating image <var title="">B</var>.</li>
+ <li><p><a href=#when-shadows-are-drawn>When shadows are drawn</a>, render the shadow from
+ image <var title="">A</var>, using the current shadow styles,
+ creating image <var title="">B</var>.</li>
- <li><p>Multiply the alpha component of every pixel in <var title="">B</var> by <code title=dom-context-2d-globalAlpha><a href=#dom-context-2d-globalalpha>globalAlpha</a></code>.</li>
+ <li><p><a href=#when-shadows-are-drawn>When shadows are drawn</a>, multiply the alpha
+ component of every pixel in <var title="">B</var> by <code title=dom-context-2d-globalAlpha><a href=#dom-context-2d-globalalpha>globalAlpha</a></code>.</li>
- <li><p>Within the clipping region, composite <var title="">B</var>
- over the current canvas bitmap using the current composition
- operator.</li>
+ <li><p><a href=#when-shadows-are-drawn>When shadows are drawn</a>, composite <var title="">B</var> within the clipping region over the current canvas
+ bitmap using the current composition operator.</li>
<li><p>Multiply the alpha component of every pixel in <var title="">A</var> by <code title=dom-context-2d-globalAlpha><a href=#dom-context-2d-globalalpha>globalAlpha</a></code>.</li>
- <li><p>Within the clipping region, composite <var title="">A</var>
+ <li><p>Composite <var title="">A</var> within the clipping region
over the current canvas bitmap using the current composition
operator.</li>
Modified: source
===================================================================
--- source 2009-04-29 05:06:56 UTC (rev 3022)
+++ source 2009-04-29 06:17:13 UTC (rev 3023)
@@ -25662,8 +25662,18 @@
value is negative, infinite or NaN, in which case the new value must
be ignored.</p>
- <p>When shadows are drawn, they must be rendered as follows:</p>
+ <p><dfn title="when shadows are drawn">Shadows are only drawn
+ if</dfn> either the opacity component of the alpha component of the
+ color of <code title="dom-context-2d-shadowColor">shadowColor</code>
+ is non-zero, or the <code
+ title="dom-context-2d-shadowBlur">shadowBlur</code> is non-zero, or
+ the <code title="dom-context-2d-shadowOffsetX">shadowOffsetX</code>
+ is non-zero, or the <code
+ title="dom-context-2d-shadowOffsetY">shadowOffsetY</code> is
+ non-zero.</p>
+ <p><span>When shadows are drawn</span>, they must be rendered as follows:</p>
+
<ol>
<li> <p>Let <var title="">A</var> be the source image for which a
@@ -27391,23 +27401,23 @@
and the stroke must itself also be subjected to the current
transformation matrix.</p></li>
- <li><p>Render the shadow from image <var title="">A</var>, using
- the current shadow styles, creating image <var
- title="">B</var>.</p></li>
+ <li><p><span>When shadows are drawn</span>, render the shadow from
+ image <var title="">A</var>, using the current shadow styles,
+ creating image <var title="">B</var>.</p></li>
- <li><p>Multiply the alpha component of every pixel in <var
- title="">B</var> by <code
+ <li><p><span>When shadows are drawn</span>, multiply the alpha
+ component of every pixel in <var title="">B</var> by <code
title="dom-context-2d-globalAlpha">globalAlpha</code>.</p></li>
- <li><p>Within the clipping region, composite <var title="">B</var>
- over the current canvas bitmap using the current composition
- operator.</p></li>
+ <li><p><span>When shadows are drawn</span>, composite <var
+ title="">B</var> within the clipping region over the current canvas
+ bitmap using the current composition operator.</p></li>
<li><p>Multiply the alpha component of every pixel in <var
title="">A</var> by <code
title="dom-context-2d-globalAlpha">globalAlpha</code>.</p></li>
- <li><p>Within the clipping region, composite <var title="">A</var>
+ <li><p>Composite <var title="">A</var> within the clipping region
over the current canvas bitmap using the current composition
operator.</p></li>