This adds better support for Arabic script languages, Armenian,
Catalan, Hebrew, Kannada, Malayalam, Polish, Tamil, and Telugu by
adding various hyphenation types and edits appropriate for the
locales.
The actual implementations are in Minikin. This CL takes care of the
changes needed in frameworks, to support different end-of-line and
start-of-line hyphen edits.
Two bugs in TextLine.java are also fixed:
1. Where hyphen edits on non-spanned texts were not eliminated in
handleRun() when they should have. This had manifested itself in
double hyphenation in some bidi paragraphs.
2. Some no op assignments and comparions around the change for the
above bug are removed.
Test: thorough manual testing for various cases
Bug: 19756624
Bug: 19950445
Bug: 19955011
Bug: 25623243
Bug: 26154469
Bug: 26154471
Bug: 33387871
Bug: 33560754
Bug: 33752592
Bug: 33754204
Change-Id: I48c047d1f6a75c39a78a6ea38a0a3282f63326ec
This is 2nd attempt of I249d464f8cdaa56017a987588b94ed685aadeb58.
The original CL was reverted due to conflicting with another CL submitted
before.
Nothing has changed except for following class name changes.
Here is the original commit message of reverted change.
This CL enables developers to specify axis values to the underlying
font collection. The specification of the font variation settings is
the same as the CSS font-variation-settings attribute in CSS working
draft as of 2016-11-30.
Code example: Here is an example to set width 100 and weight 1.5.
TextView tv = (TextView) findViewById(R.id.textView);
tv.setFontVariationSettings("'wdth' 100, 'wght' 1.5");
Bug: 33062398
Test: Manually done. Ran FrameworksGraphicsTests, CtsGraphicsTestCases
and CtsWidgetTestCases
Change-Id: I9cdfbdecc87c995d805096883ef2652768c6c21e
This CL enables developers to specify axis values to the underlying
font collection. The specification of the font variation settings is
the same as the CSS font-variation-settings attribute in CSS working
draft as of 2016-11-30.
Code example: Here is an example to set width 100 and weight 1.5.
TextView tv = (TextView) findViewById(R.id.textView);
tv.setFontVariationSettings("'wdth' 100, 'wght' 1.5");
Bug: 33062398
Test: Manually done. Ran FrameworksGraphicsTests, CtsGraphicsTestCases
and CtsWidgetTestCases
Change-Id: I249d464f8cdaa56017a987588b94ed685aadeb58
Adds the ability to control word spacing from Java, wiring up the
plumbing to the corresponding change that adds it at the Minikin
level.
Bug: 31707212
Test: ran graphicstests
Change-Id: I568186aca961d51ee5231cb0331f882b7b005e90
With I63af3a6ecbf92, we create RenderNode lazily, but
blocks containing contents that protrude from line top or
bottom cannot be simply lazily redrawn after edit or
scroll.
With this CL, we check if the contents protrude from line
top or bottom by comparing the text bounds with relevant
font metrics values and we always redrawn such blocks after
edit or scroll.
Bug: 27889485
Change-Id: I666da5eeb39f780c341597f347bfcba21eb34295
Since LocaleList needs to depend on android.os.Parcelable, we cannot let
that class belong to "android.util" package, which causes layering
violation.
Bug: 28819696
Change-Id: Ia8de2ee9df3dd0a42b1fe84574439519b680fe18
So that the native library isn't unloaded before we have a chance to
call the freeFunction.
Bug: 28406866
Change-Id: I889f1ccd91bba70e31fb8d09c0ec6d471fc35841
Add CSS font-feature-settings URL to get/setFontFeatureSettings method
JavaDoc in both TextView and Paint.
Bug: 27857640
Change-Id: I8c20068801032407d493e4f4a15b89dcf35949d2
Put the native allocation support into a holder class. This allows
statically initializing the classes in the boot image.
Bug: 27265238
Bug: 23130675
Change-Id: I857aebfdbaec39067a5eb58afceb49630176af98
- Remove the LocaleList#getPrimary() API. It had become confusing
after locale negotiation was completely implemented. For example,
it could create the confusion that calling getPrimary() on the
default locale list would provide the default locale, etc.
- Use the adjusted locale list from LocaleList.getAdjustedDefault()
in Paints created with no locale list provided.
- Change LocaleList#get() to treat out of bound indexes from both
negative indexes and too large indexes the same way.
Bug: 26984092
Bug: 26193251
Bug: 26834387
Change-Id: I75f77aea6b75e38793ed8477e5e5a4420d5e6d85
Setting the LocaleList to the native Paint object is not a lightweight
operation since it needs to propagate a string object to the native code
which then needs to parse it for making minikin language list.
To avoid performance regressions, cache the minikin language ID in
android.graphics.Paint and send the LocaleList with cached ID
instead of a string the next time native code is called.
BUG: 25122318
Change-Id: Ib5ce8bcff8a1c0a2b1a1c3d1868ea8be5a0e642f
Also, compute LocaleList's string representation at construction.
This is to further push the cost of doing costly operations related
to LocaleLists to construction time.
Change-Id: Ia55b8ce66b1088ff54cb42eb1e11149b5bd10f17
Many classes in graphics/java and elsewhere deallocate native memory
in a finalizer on the assumption that instance methods can no longer
be called once the finalizer has been called. This is incorrect if
the object can be used, possibly indirectly, from another finalizer,
possibly one in the application.
This is the initial installment of a patch to cause such post-finalization
uses to at least see a null pointer rather than causing memory corruption
by accessing deallocated native memory. This should make it possible to
identify and fix such finalization ordering issues.
There are more graphics classes that need this treatment, and probably
many more in other subsystems.
This solution is < 100% effective if finalizers can be invoked
concurrently. We currently promise that they aren't.
(In my opinion, the real cause here is a language spec bug. But that ship
has sailed.)
Bug: 18178237
Change-Id: I844cf1e0fbb190407389c4f8e8f072752cca6198
This keeps the existing single-locale APIs working (and adds
parameter annotations to them), while adding an API for setting and
getting the whole locale list. At the moment, the implementation
ignores the actual data in the locale list except for its primary
locale.
Also add a method to LocaleList to return the system's default locale
list. (Currently a one-member list just containing the system
default locale.)
Change-Id: Icea9d164ddae51f50dd71e18b5d91c96f233b8b8
For correct low-level drawing of low level text, a method that
includes context for shaping is necessary, and it's similarly useful
to provide the direction explicitly rather than running the BiDi
algorithm on the text. The drawTextRun method (in both char[] and
CharSequence variants) has provided this functionality for several
major releases but has been internal. This patch exposes the
methods publicly, and also improves the doc strings for both
the new method and some related ones.
Bug: 20193553
Change-Id: I9be33ca5ae3e7db2b69a56298400671d5ef8ad05
Adds methods to Paint for finding an offset corresponding to an
advance, and for finding the advance corresponding to an offset,
useful for positioning and drawing a cursor.
Change-Id: Id57402ddd1980650f1d0d2f8bbdb75e43612ec51
This patch adds a method to determine whether a typeface has a glyph
to support a particular Unicode character or sequence.
The implementation is based on shaping the text and checking for the
presence of .notdef glyphs, and counting the number of glyphs in the
ligature case. In the case of variation selector control characters, it
currently just returns false because there is no variation selector
support yet (Mongolian Free Variation Selectors work because they're
shaped with GSUB instead).
Change-Id: I8ee4ae0d6e81a0ac57f961eb02dcc35aabd87042
The cursor position calculation of not well known CharSequence implementation
has problem. getTextRunCursor() returns the relative path of passed string
buffer, so need to fix the origin by adding the copied buffer origin.
BUG: 17448027
Change-Id: I413c553bfccbccee4a390b6c83aa09ac7fd04126
This adds HyphenEdit on the C++ and also to Java via JNI. HyphenEdit is
a Minikin feature for adding hyphens to text without having to edit the
string on the client side.
Change-Id: Icfb228407c1d11a716d055f813da7507acb38fbf
Since requesting the native pointer triggers specific paint behavior we need
to ensure that the field is private and that callers use the public method.
Change-Id: I598a8bf2904960023397728c1ce4502ce408348e
The Paint_Delegate changes from lmp-dev reference mNativePaint, which
has been made private in master. Change it to being package-protected
to fix the build.
Change-Id: I4bf30a530f0145cf7697cef6aa9a698fc9bab4ed
