Phil,
I did one final optimization. The code handles font/face tag combinations as
well. If there's no embedascff attribute found on a <font> tag, the default
value for embedAsCFF in AS3 will be false. If the attribute is set, the
attribute will be copied over to the face element within
FontCompiler#compile(Element element)
<font name="cousine-cffenabled" embedascff="true">
<face style="plain" src="Cousine-Regular.ttf" />
<face style="italic" src="Cousine-Italic.ttf" />
<face style="bold" src="Cousine-Bold.ttf" />
<face style="bold italic" src="Cousine-BoldItalic.ttf" />
</font>
- Raju
Change raju-20111014-aaS by [email protected] on 2011-10-14 12:56:41 CEST
in /Users/raju/src/svn/openlaszlo/tlf
for http://svn.openlaszlo.org/openlaszlo/trunk
Summary: Add support of embedAsCFF property for embedded fonts in the SWF10
runtime
New Features: Font tag supports embedascff property with boolean value
Bugs Fixed: LPP-10093
Technical Reviewer: [email protected] [email protected]
QA Reviewer: (pending)
Doc Reviewer: (pending)
Documentation:
Release Notes:
Add support for CFF font embedding in the ActionScript3 runtime (Flash Player
10+). Adobe's Text Layout Framework (TLF) requires fonts to be embedded as CFF
to support all the features of the TLF.
Overview:
You can now set an optional attribute 'embedascff' on the <font> tag (e.g.
<font name="myFont" src="file.ttf" embedascff="true" />) to embed a font,
setting the AS3 embedAsCFF option to 'true'. The default value for embedascff
is "false" (the default value within Flash is 'true'), to be compatible with
existing code.
Details:
FontCompiler#compile copies a possible "embedascff" attribute on a <font> tag
over to any <face> children for processing.
FontCompiler#compileFont checks for an attribute "embedascff" on the <font>
tag. If the attribute is not found, the default value is set to "false".
SWF9Writer#importFontStyle is called with the value as an additional argument
to the method.
SWF9Writer#importFontStyle passes the embedAsCFF parameter value on to
SWF9Writer#importFont.
SWF9Writer#importFont - which generates the AS3 font embedding code - has an
additional parameter 'String embedAsCFF'.
In ObjectWriter - the abstract base class for SWF9Writer - the signature of
importFontStyle had to be modified to take the additional embedAsCFF parameter.
For all other classes extending ObjectWriter (SWFWriter.java, DHTMLWriter.java,
NullWriter.java ), the method importFontStyle has an additional parameter
embedAsCFF now (value can be ignored).
Tests:
Compile test/tlf/embedascff.lzx using the SWF10 runtime. The font
KentuckyFriedChickenFont.ttf has been embedded two times: With embedascff set
to true and false.
1) Validate that the <text> element does not render CFF fonts
The <text> element in line #152 should not be displayed:
<text font="ChickenCFF" fontsize="15">Text with font ChickenCFF</text>
2) Validate that TextFlow (TLF) renders CFF enabled fonts correctly
You will see two poems in a gray box. Both are rendered using an TFL TextFlow
instance. The left one uses the CFF enabled font, so you should see the
KentuckyFriedChickenFont.ttf rendered correctly. The right box does not render
the font correctly, since it has been embedded with embedAsCFF set to false.
3) Check the generated source code for the [Embed] information
The [Embed] element should show that the font has been embedded two times, once
with embedAsCFF set to true, once set to false.
[Embed(mimeType='application/x-font',
source='/Users/raju/src/svn/openlaszlo/tlf/test/resources/ttf/KentuckyFriedChickenFont.ttf',
fontName='ChickenCFF',
fontWeight='plain',fontStyle='plain',advancedAntiAliasing='true',embedAsCFF='true')]
[Embed(mimeType='application/x-font',
source='/Users/raju/src/svn/openlaszlo/tlf/test/resources/ttf/KentuckyFriedChickenFont.ttf',
fontName='ChickenNoCFF',
fontWeight='plain',fontStyle='plain',advancedAntiAliasing='true',embedAsCFF='false')]
Files:
A test/tlf/embedascff.lzx
M WEB-INF/lps/server/src/org/openlaszlo/compiler/ObjectWriter.java
M WEB-INF/lps/server/src/org/openlaszlo/compiler/DHTMLWriter.java
M WEB-INF/lps/server/src/org/openlaszlo/compiler/NullWriter.java
M WEB-INF/lps/server/src/org/openlaszlo/compiler/SWFWriter.java
M WEB-INF/lps/server/src/org/openlaszlo/compiler/FontCompiler.java
M WEB-INF/lps/server/src/org/openlaszlo/compiler/SWF9Writer.java
Changeset: http://svn.openlaszlo.org/openlaszlo/patches/raju-20111014-aaS.tar
