Introduce getTextWidths test cases.

This CL includes HintedAdvanceWidthTest-Regular.{ttx|ttf} for fixing test expectation, which has hinting information. Bug: 11256006 Change-Id: Ia79a1d093e39cd47c914395e034cb90eda51c5c0
author: Seigo Nonaka <nona@google.com> 2015-09-01 15:58:01 +0900
committer: Seigo Nonaka <nona@google.com> 2015-09-10 13:59:07 +0900
commit: 5532c34613753044b834a1e8cfb8c20d76405af7 (patch)
tree: 58dd22647fa8e6515c44fbab21864b22457f6899
parent: bbec1e16f2dcc3376859c5528adeef08b8d62fc5 (diff)
3 files changed, 425 insertions, 0 deletions
diff --git a/core/tests/coretests/assets/fonts/HintedAdvanceWidthTest-Regular.ttf b/core/tests/coretests/assets/fonts/HintedAdvanceWidthTest-Regular.ttf
new file mode 100644
index 000000000000..1924c35a9c0a
--- /dev/null
+++ b/core/tests/coretests/assets/fonts/HintedAdvanceWidthTest-Regular.ttf
diff --git a/core/tests/coretests/assets/fonts/HintedAdvanceWidthTest-Regular.ttx b/core/tests/coretests/assets/fonts/HintedAdvanceWidthTest-Regular.ttx
new file mode 100644
index 000000000000..2b8478d522d2
--- /dev/null
+++ b/core/tests/coretests/assets/fonts/HintedAdvanceWidthTest-Regular.ttx
@@ -0,0 +1,328 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<ttFont sfntVersion="\x00\x01\x00\x00" ttLibVersion="3.0">
+
+  <GlyphOrder>
+    <!-- The 'id' attribute is only for humans; it is ignored when parsed. -->
+    <GlyphID id="0" name=".notdef"/>
+    <GlyphID id="1" name="space"/>
+    <GlyphID id="9" name="H"/>
+    <GlyphID id="16" name="O"/>
+  </GlyphOrder>
+
+  <head>
+    <!-- Most of this table will be recalculated by the compiler -->
+    <tableVersion value="1.0"/>
+    <fontRevision value="1.0"/>
+    <checkSumAdjustment value="0x640cdb2f"/>
+    <magicNumber value="0x5f0f3cf5"/>
+    <flags value="00000000 00000011"/>
+    <unitsPerEm value="1000"/>
+    <created value="Wed Sep  9 08:01:17 2015"/>
+    <modified value="Wed Sep  9 08:48:07 2015"/>
+    <xMin value="30"/>
+    <yMin value="-200"/>
+    <xMax value="629"/>
+    <yMax value="800"/>
+    <macStyle value="00000000 00000000"/>
+    <lowestRecPPEM value="7"/>
+    <fontDirectionHint value="2"/>
+    <indexToLocFormat value="0"/>
+    <glyphDataFormat value="0"/>
+  </head>
+
+  <hhea>
+    <tableVersion value="1.0"/>
+    <ascent value="1000"/>
+    <descent value="-200"/>
+    <lineGap value="0"/>
+    <advanceWidthMax value="659"/>
+    <minLeftSideBearing value="0"/>
+    <minRightSideBearing value="30"/>
+    <xMaxExtent value="629"/>
+    <caretSlopeRise value="1"/>
+    <caretSlopeRun value="0"/>
+    <caretOffset value="0"/>
+    <reserved0 value="0"/>
+    <reserved1 value="0"/>
+    <reserved2 value="0"/>
+    <reserved3 value="0"/>
+    <metricDataFormat value="0"/>
+    <numberOfHMetrics value="18"/>
+  </hhea>
+
+  <maxp>
+    <!-- Most of this table will be recalculated by the compiler -->
+    <tableVersion value="0x10000"/>
+    <numGlyphs value="54"/>
+    <maxPoints value="73"/>
+    <maxContours value="10"/>
+    <maxCompositePoints value="0"/>
+    <maxCompositeContours value="0"/>
+    <maxZones value="2"/>
+    <maxTwilightPoints value="12"/>
+    <maxStorage value="28"/>
+    <maxFunctionDefs value="119"/>
+    <maxInstructionDefs value="0"/>
+    <maxStackElements value="61"/>
+    <maxSizeOfInstructions value="2967"/>
+    <maxComponentElements value="0"/>
+    <maxComponentDepth value="0"/>
+  </maxp>
+
+  <OS_2>
+    <!-- The fields 'usFirstCharIndex' and 'usLastCharIndex'
+         will be recalculated by the compiler -->
+    <version value="3"/>
+    <xAvgCharWidth value="594"/>
+    <usWeightClass value="400"/>
+    <usWidthClass value="5"/>
+    <fsType value="00000000 00001000"/>
+    <ySubscriptXSize value="650"/>
+    <ySubscriptYSize value="600"/>
+    <ySubscriptXOffset value="0"/>
+    <ySubscriptYOffset value="75"/>
+    <ySuperscriptXSize value="650"/>
+    <ySuperscriptYSize value="600"/>
+    <ySuperscriptXOffset value="0"/>
+    <ySuperscriptYOffset value="350"/>
+    <yStrikeoutSize value="50"/>
+    <yStrikeoutPosition value="300"/>
+    <sFamilyClass value="0"/>
+    <panose>
+      <bFamilyType value="0"/>
+      <bSerifStyle value="0"/>
+      <bWeight value="5"/>
+      <bProportion value="0"/>
+      <bContrast value="0"/>
+      <bStrokeVariation value="0"/>
+      <bArmStyle value="0"/>
+      <bLetterForm value="0"/>
+      <bMidline value="0"/>
+      <bXHeight value="0"/>
+    </panose>
+    <ulUnicodeRange1 value="00000000 00000000 00000000 00000001"/>
+    <ulUnicodeRange2 value="00000000 00000000 00000000 00000000"/>
+    <ulUnicodeRange3 value="00000000 00000000 00000000 00000000"/>
+    <ulUnicodeRange4 value="00000000 00000000 00000000 00000000"/>
+    <achVendID value="UKWN"/>
+    <fsSelection value="00000000 01000000"/>
+    <usFirstCharIndex value="32"/>
+    <usLastCharIndex value="122"/>
+    <sTypoAscender value="800"/>
+    <sTypoDescender value="-200"/>
+    <sTypoLineGap value="200"/>
+    <usWinAscent value="1000"/>
+    <usWinDescent value="200"/>
+    <ulCodePageRange1 value="00000000 00000000 00000000 00000001"/>
+    <ulCodePageRange2 value="00000000 00000000 00000000 00000000"/>
+    <sxHeight value="500"/>
+    <sCapHeight value="700"/>
+    <usDefaultChar value="0"/>
+    <usBreakChar value="32"/>
+    <usMaxContext value="0"/>
+  </OS_2>
+
+  <hmtx>
+    <mtx name=".notdef" width="500" lsb="93"/>
+    <mtx name="H" width="627" lsb="50"/>
+    <mtx name="O" width="659" lsb="30"/>
+    <mtx name="space" width="300" lsb="0"/>
+  </hmtx>
+
+  <cmap>
+    <tableVersion version="0"/>
+    <cmap_format_4 platformID="0" platEncID="3" language="0">
+      <map code="0x20" name="space"/><!-- SPACE -->
+      <map code="0x48" name="H"/><!-- LATIN CAPITAL LETTER H -->
+      <map code="0x4f" name="O"/><!-- LATIN CAPITAL LETTER O -->
+    </cmap_format_4>
+    <cmap_format_4 platformID="3" platEncID="1" language="0">
+      <map code="0x20" name="space"/><!-- SPACE -->
+      <map code="0x48" name="H"/><!-- LATIN CAPITAL LETTER H -->
+      <map code="0x4f" name="O"/><!-- LATIN CAPITAL LETTER O -->
+    </cmap_format_4>
+  </cmap>
+
+  <fpgm>
+    <assembly>
+    </assembly>
+  </fpgm>
+
+  <prep>
+    <assembly>
+    </assembly>
+  </prep>
+
+  <cvt>
+    <cv index="0" value="0"/>
+  </cvt>
+
+  <loca>
+    <!-- The 'loca' table will be calculated by the compiler -->
+  </loca>
+
+  <glyf>
+
+    <!-- The xMin, yMin, xMax and yMax values
+         will be recalculated by the compiler. -->
+
+    <TTGlyph name=".notdef" xMin="93" yMin="-200" xMax="410" yMax="800">
+      <contour>
+        <pt x="410" y="0" on="1"/>
+        <pt x="50" y="0" on="1"/>
+        <pt x="50" y="700" on="1"/>
+        <pt x="410" y="700" on="1"/>
+      </contour>
+      <instructions><assembly>
+	PUSHB[] 1 2 4 3
+	SLOOP[]
+	PUSH[] -400
+	SHPIX[]
+
+	PUSHB[] 0 3 5 3
+	SLOOP[]
+	PUSH[] 400
+	SHPIX[]
+      </assembly></instructions>
+    </TTGlyph>
+
+    <TTGlyph name="H" xMin="50" yMin="0" xMax="577" yMax="700">
+      <contour>
+        <pt x="50" y="700" on="1"/>
+        <pt x="200" y="700" on="1"/>
+        <pt x="200" y="447" on="1"/>
+        <pt x="427" y="447" on="1"/>
+        <pt x="427" y="700" on="1"/>
+        <pt x="577" y="700" on="1"/>
+        <pt x="577" y="0" on="1"/>
+        <pt x="427" y="0" on="1"/>
+        <pt x="427" y="297" on="1"/>
+        <pt x="200" y="297" on="1"/>
+        <pt x="200" y="0" on="1"/>
+        <pt x="50" y="0" on="1"/>
+      </contour>
+      <instructions><assembly>
+	PUSHB[] 0 11 12 3
+	SLOOP[]
+	PUSH[] -200
+	SHPIX[]
+	PUSHB[] 5 6 13 3
+	SLOOP[]
+	PUSH[] 200
+	SHPIX[]
+      </assembly></instructions>
+    </TTGlyph>
+
+    <TTGlyph name="O" xMin="30" yMin="0" xMax="629" yMax="700">
+      <contour>
+        <pt x="248" y="0" on="0"/>
+        <pt x="111" y="94" on="0"/>
+        <pt x="30" y="255" on="0"/>
+        <pt x="30" y="350" on="1"/>
+        <pt x="30" y="445" on="0"/>
+        <pt x="111" y="606" on="0"/>
+        <pt x="248" y="700" on="0"/>
+        <pt x="330" y="700" on="1"/>
+        <pt x="411" y="700" on="0"/>
+        <pt x="548" y="606" on="0"/>
+        <pt x="629" y="445" on="0"/>
+        <pt x="629" y="350" on="1"/>
+        <pt x="629" y="255" on="0"/>
+        <pt x="548" y="94" on="0"/>
+        <pt x="411" y="0" on="0"/>
+        <pt x="330" y="0" on="1"/>
+      </contour>
+      <contour>
+        <pt x="370" y="150" on="0"/>
+        <pt x="439" y="209" on="0"/>
+        <pt x="480" y="302" on="0"/>
+        <pt x="480" y="350" on="1"/>
+        <pt x="480" y="398" on="0"/>
+        <pt x="439" y="491" on="0"/>
+        <pt x="370" y="550" on="0"/>
+        <pt x="330" y="550" on="1"/>
+        <pt x="289" y="550" on="0"/>
+        <pt x="220" y="491" on="0"/>
+        <pt x="179" y="398" on="0"/>
+        <pt x="179" y="350" on="1"/>
+        <pt x="179" y="302" on="0"/>
+        <pt x="220" y="209" on="0"/>
+        <pt x="289" y="150" on="0"/>
+        <pt x="330" y="150" on="1"/>
+      </contour>
+      <instructions><assembly>
+	PUSH[] 32 -200
+	SHPIX[]	
+	PUSHB[]	33 200
+	SHPIX[]
+      </assembly></instructions>
+    </TTGlyph>
+
+    <TTGlyph name="space">
+      <contour></contour>
+      <instructions><assembly>
+	PUSH[] 0 -200
+	SHPIX[]
+	PUSHB[]	1 200
+	SHPIX[]
+      </assembly></instructions>
+    </TTGlyph>
+
+  </glyf>
+
+  <name>
+    <namerecord nameID="1" platformID="1" platEncID="0" langID="0x0" unicode="True">
+      Hinted Advance Width Test
+    </namerecord>
+    <namerecord nameID="2" platformID="1" platEncID="0" langID="0x0" unicode="True">
+      Regular
+    </namerecord>
+    <namerecord nameID="4" platformID="1" platEncID="0" langID="0x0" unicode="True">
+      Hinted Advance Width Test
+    </namerecord>
+    <namerecord nameID="6" platformID="1" platEncID="0" langID="0x0" unicode="True">
+      HintedAdvanceWidthTest-Regular
+    </namerecord>
+    <namerecord nameID="1" platformID="3" platEncID="1" langID="0x409">
+      Hinted Advance Width Test
+    </namerecord>
+    <namerecord nameID="2" platformID="3" platEncID="1" langID="0x409">
+      Regular
+    </namerecord>
+    <namerecord nameID="4" platformID="3" platEncID="1" langID="0x409">
+      Hinted Advance Width Test
+    </namerecord>
+    <namerecord nameID="6" platformID="3" platEncID="1" langID="0x409">
+      HintedAdvanceWidthTest-Regular
+    </namerecord>
+  </name>
+
+  <post>
+    <formatType value="2.0"/>
+    <italicAngle value="0.0"/>
+    <underlinePosition value="-75"/>
+    <underlineThickness value="50"/>
+    <isFixedPitch value="0"/>
+    <minMemType42 value="0"/>
+    <maxMemType42 value="0"/>
+    <minMemType1 value="0"/>
+    <maxMemType1 value="0"/>
+    <psNames>
+      <!-- This file uses unique glyph names based on the information
+           found in the 'post' table. Since these names might not be unique,
+           we have to invent artificial names in case of clashes. In order to
+           be able to retain the original information, we need a name to
+           ps name mapping for those cases where they differ. That's what
+           you see below.
+            -->
+    </psNames>
+    <extraNames>
+      <!-- following are the name that are not taken from the standard Mac glyph order -->
+    </extraNames>
+  </post>
+
+  <gasp>
+    <gaspRange rangeMaxPPEM="65535" rangeGaspBehavior="15"/>
+  </gasp>
+
+</ttFont>
diff --git a/core/tests/coretests/src/android/graphics/PaintTest.java b/core/tests/coretests/src/android/graphics/PaintTest.java
new file mode 100644
index 000000000000..e97bb33487c4
--- /dev/null
+++ b/core/tests/coretests/src/android/graphics/PaintTest.java
@@ -0,0 +1,97 @@
+/*
+ * Copyright (C) 2015 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package android.graphics;
+
+import android.graphics.Paint;
+import android.test.InstrumentationTestCase;
+import android.test.suitebuilder.annotation.SmallTest;
+
+/**
+ * PaintTest tests {@link Paint}.
+ */
+public class PaintTest extends InstrumentationTestCase {
+    private static final String FONT_PATH = "fonts/HintedAdvanceWidthTest-Regular.ttf";
+
+    static void assertEquals(String message, float[] expected, float[] actual) {
+        if (expected.length != actual.length) {
+            fail(message + " expected array length:<" + expected.length + "> but was:<"
+                    + actual.length + ">");
+        }
+        for (int i = 0; i < expected.length; ++i) {
+            if (expected[i] != actual[i]) {
+                fail(message + " expected array element[" +i + "]:<" + expected[i] + ">but was:<"
+                        + actual[i] + ">");
+            }
+        }
+    }
+
+    static class HintingTestCase {
+        public final String mText;
+        public final float mTextSize;
+        public final float[] mWidthWithoutHinting;
+        public final float[] mWidthWithHinting;
+
+        public HintingTestCase(String text, float textSize, float[] widthWithoutHinting,
+                               float[] widthWithHinting) {
+            mText = text;
+            mTextSize = textSize;
+            mWidthWithoutHinting = widthWithoutHinting;
+            mWidthWithHinting = widthWithHinting;
+        }
+    }
+
+    // Following test cases are only valid for HintedAdvanceWidthTest-Regular.ttf in assets/fonts.
+    HintingTestCase[] HINTING_TESTCASES = {
+        new HintingTestCase("H", 11f, new float[] { 7f }, new float[] { 13f }),
+        new HintingTestCase("O", 11f, new float[] { 7f }, new float[] { 13f }),
+
+        new HintingTestCase("H", 13f, new float[] { 8f }, new float[] { 14f }),
+        new HintingTestCase("O", 13f, new float[] { 9f }, new float[] { 15f }),
+
+        new HintingTestCase("HO", 11f, new float[] { 7f, 7f }, new float[] { 13f, 13f }),
+        new HintingTestCase("OH", 11f, new float[] { 7f, 7f }, new float[] { 13f, 13f }),
+
+        new HintingTestCase("HO", 13f, new float[] { 8f, 9f }, new float[] { 14f, 15f }),
+        new HintingTestCase("OH", 13f, new float[] { 9f, 8f }, new float[] { 15f, 14f }),
+    };
+
+    @SmallTest
+    public void testHintingWidth() {
+        final Typeface fontTypeface = Typeface.createFromAsset(
+                getInstrumentation().getContext().getAssets(), FONT_PATH);
+        Paint paint = new Paint();
+        paint.setTypeface(fontTypeface);
+
+        for (int i = 0; i < HINTING_TESTCASES.length; ++i) {
+            HintingTestCase testCase = HINTING_TESTCASES[i];
+
+            paint.setTextSize(testCase.mTextSize);
+
+            float[] widths = new float[testCase.mText.length()];
+
+            paint.setHinting(Paint.HINTING_OFF);
+            paint.getTextWidths(String.valueOf(testCase.mText), widths);
+            assertEquals("Text width of '" + testCase.mText + "' without hinting is not expected.",
+                    testCase.mWidthWithoutHinting, widths);
+
+            paint.setHinting(Paint.HINTING_ON);
+            paint.getTextWidths(String.valueOf(testCase.mText), widths);
+            assertEquals("Text width of '" + testCase.mText + "' with hinting is not expected.",
+                    testCase.mWidthWithHinting, widths);
+        }
+    }
+}
author	Seigo Nonaka <nona@google.com>	2015-09-01 15:58:01 +0900
committer	Seigo Nonaka <nona@google.com>	2015-09-10 13:59:07 +0900
commit	5532c34613753044b834a1e8cfb8c20d76405af7 (patch)
tree	58dd22647fa8e6515c44fbab21864b22457f6899
parent	bbec1e16f2dcc3376859c5528adeef08b8d62fc5 (diff)