| /* |
| * Copyright (C) 2008 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.text.cts; |
| |
| import android.test.AndroidTestCase; |
| import android.text.Editable; |
| import android.text.GetChars; |
| import android.text.GraphicsOperations; |
| import android.text.Layout.Alignment; |
| import android.text.TextUtils.TruncateAt; |
| import android.text.SpannableString; |
| import android.text.SpannableStringBuilder; |
| import android.text.SpannedString; |
| import android.text.StaticLayout; |
| import android.text.TextDirectionHeuristics; |
| import android.text.TextPaint; |
| import android.text.TextUtils; |
| |
| import java.text.Normalizer; |
| import java.util.ArrayList; |
| import java.util.List; |
| |
| public class StaticLayoutTest extends AndroidTestCase { |
| private static final float SPACE_MULTI = 1.0f; |
| private static final float SPACE_ADD = 0.0f; |
| private static final int DEFAULT_OUTER_WIDTH = 150; |
| |
| private static final int LAST_LINE = 5; |
| private static final int LINE_COUNT = 6; |
| private static final int LARGER_THAN_LINE_COUNT = 50; |
| |
| /* the first line must have one tab. the others not. totally 6 lines |
| */ |
| private static final CharSequence LAYOUT_TEXT = "CharSe\tq\nChar" |
| + "Sequence\nCharSequence\nHelllo\n, world\nLongLongLong"; |
| |
| private static final CharSequence LAYOUT_TEXT_SINGLE_LINE = "CharSequence"; |
| |
| private static final int VERTICAL_BELOW_TEXT = 1000; |
| |
| private static final Alignment DEFAULT_ALIGN = Alignment.ALIGN_CENTER; |
| |
| private static final int ELLIPSIZE_WIDTH = 8; |
| |
| private StaticLayout mDefaultLayout; |
| private TextPaint mDefaultPaint; |
| |
| @Override |
| protected void setUp() throws Exception { |
| super.setUp(); |
| if (mDefaultPaint == null) { |
| mDefaultPaint = new TextPaint(); |
| } |
| if (mDefaultLayout == null) { |
| mDefaultLayout = createDefaultStaticLayout(); |
| } |
| } |
| |
| private StaticLayout createDefaultStaticLayout() { |
| return new StaticLayout(LAYOUT_TEXT, mDefaultPaint, |
| DEFAULT_OUTER_WIDTH, DEFAULT_ALIGN, SPACE_MULTI, SPACE_ADD, true); |
| } |
| |
| private StaticLayout createEllipsizeStaticLayout() { |
| return new StaticLayout(LAYOUT_TEXT, 0, LAYOUT_TEXT.length(), mDefaultPaint, |
| DEFAULT_OUTER_WIDTH, DEFAULT_ALIGN, SPACE_MULTI, SPACE_ADD, true, |
| TextUtils.TruncateAt.MIDDLE, ELLIPSIZE_WIDTH); |
| } |
| |
| private StaticLayout createEllipsizeStaticLayout(CharSequence text, |
| TextUtils.TruncateAt ellipsize, int maxLines) { |
| return new StaticLayout(text, 0, text.length(), |
| mDefaultPaint, DEFAULT_OUTER_WIDTH, DEFAULT_ALIGN, |
| TextDirectionHeuristics.FIRSTSTRONG_LTR, |
| SPACE_MULTI, SPACE_ADD, true /* include pad */, |
| ellipsize, |
| ELLIPSIZE_WIDTH, |
| maxLines); |
| } |
| |
| |
| |
| /** |
| * Constructor test |
| */ |
| public void testConstructor() { |
| new StaticLayout(LAYOUT_TEXT, mDefaultPaint, DEFAULT_OUTER_WIDTH, |
| DEFAULT_ALIGN, SPACE_MULTI, SPACE_ADD, true); |
| |
| new StaticLayout(LAYOUT_TEXT, 0, LAYOUT_TEXT.length(), mDefaultPaint, |
| DEFAULT_OUTER_WIDTH, DEFAULT_ALIGN, SPACE_MULTI, SPACE_ADD, true); |
| |
| new StaticLayout(LAYOUT_TEXT, 0, LAYOUT_TEXT.length(), mDefaultPaint, |
| DEFAULT_OUTER_WIDTH, DEFAULT_ALIGN, SPACE_MULTI, SPACE_ADD, false, null, 0); |
| |
| try { |
| new StaticLayout(null, null, -1, null, 0, 0, true); |
| fail("should throw NullPointerException here"); |
| } catch (NullPointerException e) { |
| } |
| } |
| |
| public void testBuilder() { |
| { |
| // Obtain. |
| StaticLayout.Builder builder = StaticLayout.Builder.obtain(LAYOUT_TEXT, 0, |
| LAYOUT_TEXT.length(), mDefaultPaint, DEFAULT_OUTER_WIDTH); |
| StaticLayout layout = builder.build(); |
| // Check values passed to obtain(). |
| assertEquals(LAYOUT_TEXT, layout.getText()); |
| assertEquals(mDefaultPaint, layout.getPaint()); |
| assertEquals(DEFAULT_OUTER_WIDTH, layout.getWidth()); |
| // Check default values. |
| assertEquals(TextDirectionHeuristics.FIRSTSTRONG_LTR, |
| layout.getTextDirectionHeuristic()); |
| assertEquals(Alignment.ALIGN_NORMAL, layout.getAlignment()); |
| assertEquals(0.0f, layout.getSpacingAdd()); |
| assertEquals(1.0f, layout.getSpacingMultiplier()); |
| assertEquals(DEFAULT_OUTER_WIDTH, layout.getEllipsizedWidth()); |
| } |
| { |
| // Obtain with null objects. |
| StaticLayout.Builder builder = StaticLayout.Builder.obtain(null, 0, 0, null, 0); |
| try { |
| StaticLayout layout = builder.build(); |
| fail("should throw NullPointerException here"); |
| } catch (NullPointerException e) { |
| } |
| } |
| { |
| // setText. |
| StaticLayout.Builder builder = StaticLayout.Builder.obtain(LAYOUT_TEXT, 0, |
| LAYOUT_TEXT.length(), mDefaultPaint, DEFAULT_OUTER_WIDTH); |
| builder.setText(LAYOUT_TEXT_SINGLE_LINE); |
| StaticLayout layout = builder.build(); |
| assertEquals(LAYOUT_TEXT_SINGLE_LINE, layout.getText()); |
| } |
| { |
| // setAlignment. |
| StaticLayout.Builder builder = StaticLayout.Builder.obtain(LAYOUT_TEXT, 0, |
| LAYOUT_TEXT.length(), mDefaultPaint, DEFAULT_OUTER_WIDTH); |
| builder.setAlignment(DEFAULT_ALIGN); |
| StaticLayout layout = builder.build(); |
| assertEquals(DEFAULT_ALIGN, layout.getAlignment()); |
| } |
| { |
| // setTextDirection. |
| StaticLayout.Builder builder = StaticLayout.Builder.obtain(LAYOUT_TEXT, 0, |
| LAYOUT_TEXT.length(), mDefaultPaint, DEFAULT_OUTER_WIDTH); |
| builder.setTextDirection(TextDirectionHeuristics.RTL); |
| StaticLayout layout = builder.build(); |
| // Always returns TextDirectionHeuristics.FIRSTSTRONG_LTR. |
| assertEquals(TextDirectionHeuristics.FIRSTSTRONG_LTR, |
| layout.getTextDirectionHeuristic()); |
| } |
| { |
| // setLineSpacing. |
| StaticLayout.Builder builder = StaticLayout.Builder.obtain(LAYOUT_TEXT, 0, |
| LAYOUT_TEXT.length(), mDefaultPaint, DEFAULT_OUTER_WIDTH); |
| builder.setLineSpacing(1.0f, 2.0f); |
| StaticLayout layout = builder.build(); |
| assertEquals(1.0f, layout.getSpacingAdd()); |
| assertEquals(2.0f, layout.getSpacingMultiplier()); |
| } |
| { |
| // setEllipsizedWidth and setEllipsize. |
| StaticLayout.Builder builder = StaticLayout.Builder.obtain(LAYOUT_TEXT, 0, |
| LAYOUT_TEXT.length(), mDefaultPaint, DEFAULT_OUTER_WIDTH); |
| builder.setEllipsize(TruncateAt.END); |
| builder.setEllipsizedWidth(ELLIPSIZE_WIDTH); |
| StaticLayout layout = builder.build(); |
| assertEquals(ELLIPSIZE_WIDTH, layout.getEllipsizedWidth()); |
| assertEquals(DEFAULT_OUTER_WIDTH, layout.getWidth()); |
| assertTrue(layout.getEllipsisCount(0) == 0); |
| assertTrue(layout.getEllipsisCount(5) > 0); |
| } |
| { |
| // setMaxLines. |
| StaticLayout.Builder builder = StaticLayout.Builder.obtain(LAYOUT_TEXT, 0, |
| LAYOUT_TEXT.length(), mDefaultPaint, DEFAULT_OUTER_WIDTH); |
| builder.setMaxLines(1); |
| builder.setEllipsize(TruncateAt.END); |
| StaticLayout layout = builder.build(); |
| assertTrue(layout.getEllipsisCount(0) > 0); |
| assertEquals(1, layout.getLineCount()); |
| } |
| { |
| // Setter methods that cannot be directly tested. |
| // setBreakStrategy, setHyphenationFrequency, setIncludePad, and setIndents. |
| StaticLayout.Builder builder = StaticLayout.Builder.obtain(LAYOUT_TEXT, 0, |
| LAYOUT_TEXT.length(), mDefaultPaint, DEFAULT_OUTER_WIDTH); |
| builder.setBreakStrategy(StaticLayout.BREAK_STRATEGY_HIGH_QUALITY); |
| builder.setHyphenationFrequency(StaticLayout.HYPHENATION_FREQUENCY_FULL); |
| builder.setIncludePad(true); |
| builder.setIndents(null, null); |
| StaticLayout layout = builder.build(); |
| assertNotNull(layout); |
| } |
| } |
| |
| /* |
| * Get the line number corresponding to the specified vertical position. |
| * If you ask for a position above 0, you get 0. above 0 means pixel above the fire line |
| * if you ask for a position in the range of the height, return the pixel in line |
| * if you ask for a position below the bottom of the text, you get the last line. |
| * Test 4 values containing -1, 0, normal number and > count |
| */ |
| public void testGetLineForVertical() { |
| assertEquals(0, mDefaultLayout.getLineForVertical(-1)); |
| assertEquals(0, mDefaultLayout.getLineForVertical(0)); |
| assertTrue(mDefaultLayout.getLineForVertical(50) > 0); |
| assertEquals(LAST_LINE, mDefaultLayout.getLineForVertical(VERTICAL_BELOW_TEXT)); |
| } |
| |
| /** |
| * Return the number of lines of text in this layout. |
| */ |
| public void testGetLineCount() { |
| assertEquals(LINE_COUNT, mDefaultLayout.getLineCount()); |
| } |
| |
| /* |
| * Return the vertical position of the top of the specified line. |
| * If the specified line is one beyond the last line, returns the bottom of the last line. |
| * A line of text contains top and bottom in height. this method just get the top of a line |
| * Test 4 values containing -1, 0, normal number and > count |
| */ |
| public void testGetLineTop() { |
| assertTrue(mDefaultLayout.getLineTop(0) >= 0); |
| assertTrue(mDefaultLayout.getLineTop(1) > mDefaultLayout.getLineTop(0)); |
| |
| try { |
| mDefaultLayout.getLineTop(-1); |
| fail("should throw ArrayIndexOutOfBoundsException"); |
| } catch (ArrayIndexOutOfBoundsException e) { |
| } |
| |
| try { |
| mDefaultLayout.getLineTop(LARGER_THAN_LINE_COUNT ); |
| fail("should throw ArrayIndexOutOfBoundsException"); |
| } catch (ArrayIndexOutOfBoundsException e) { |
| } |
| } |
| |
| /** |
| * Return the descent of the specified line. |
| * This method just like getLineTop, descent means the bottom pixel of the line |
| * Test 4 values containing -1, 0, normal number and > count |
| */ |
| public void testGetLineDescent() { |
| assertTrue(mDefaultLayout.getLineDescent(0) > 0); |
| assertTrue(mDefaultLayout.getLineDescent(1) > 0); |
| |
| try { |
| mDefaultLayout.getLineDescent(-1); |
| fail("should throw ArrayIndexOutOfBoundsException"); |
| } catch (ArrayIndexOutOfBoundsException e) { |
| } |
| |
| try { |
| mDefaultLayout.getLineDescent(LARGER_THAN_LINE_COUNT ); |
| fail("should throw ArrayIndexOutOfBoundsException"); |
| } catch (ArrayIndexOutOfBoundsException e) { |
| } |
| } |
| |
| /** |
| * Returns the primary directionality of the paragraph containing the specified line. |
| * By default, each line should be same |
| */ |
| public void testGetParagraphDirection() { |
| assertEquals(mDefaultLayout.getParagraphDirection(0), |
| mDefaultLayout.getParagraphDirection(1)); |
| try { |
| mDefaultLayout.getParagraphDirection(-1); |
| fail("should throw ArrayIndexOutOfBoundsException"); |
| } catch (ArrayIndexOutOfBoundsException e) { |
| } |
| |
| try { |
| mDefaultLayout.getParagraphDirection(LARGER_THAN_LINE_COUNT); |
| fail("should throw ArrayIndexOutOfBoundsException"); |
| } catch (ArrayIndexOutOfBoundsException e) { |
| } |
| } |
| |
| /** |
| * Return the text offset of the beginning of the specified line. |
| * If the specified line is one beyond the last line, returns the end of the last line. |
| * Test 4 values containing -1, 0, normal number and > count |
| * Each line's offset must >= 0 |
| */ |
| public void testGetLineStart() { |
| assertTrue(mDefaultLayout.getLineStart(0) >= 0); |
| assertTrue(mDefaultLayout.getLineStart(1) >= 0); |
| |
| try { |
| mDefaultLayout.getLineStart(-1); |
| fail("should throw ArrayIndexOutOfBoundsException"); |
| } catch (ArrayIndexOutOfBoundsException e) { |
| } |
| |
| try { |
| mDefaultLayout.getLineStart(LARGER_THAN_LINE_COUNT); |
| fail("should throw ArrayIndexOutOfBoundsException"); |
| } catch (ArrayIndexOutOfBoundsException e) { |
| } |
| } |
| |
| /* |
| * Returns whether the specified line contains one or more tabs. |
| */ |
| public void testGetContainsTab() { |
| assertTrue(mDefaultLayout.getLineContainsTab(0)); |
| assertFalse(mDefaultLayout.getLineContainsTab(1)); |
| |
| try { |
| mDefaultLayout.getLineContainsTab(-1); |
| fail("should throw ArrayIndexOutOfBoundsException"); |
| } catch (ArrayIndexOutOfBoundsException e) { |
| } |
| |
| try { |
| mDefaultLayout.getLineContainsTab(LARGER_THAN_LINE_COUNT ); |
| fail("should throw ArrayIndexOutOfBoundsException"); |
| } catch (ArrayIndexOutOfBoundsException e) { |
| } |
| } |
| |
| /** |
| * Returns an array of directionalities for the specified line. |
| * The array alternates counts of characters in left-to-right |
| * and right-to-left segments of the line. |
| * We can not check the return value, for Directions's field is package private |
| * So only check it not null |
| */ |
| public void testGetLineDirections() { |
| assertNotNull(mDefaultLayout.getLineDirections(0)); |
| assertNotNull(mDefaultLayout.getLineDirections(1)); |
| |
| try { |
| mDefaultLayout.getLineDirections(-1); |
| fail("should throw ArrayIndexOutOfBoundsException"); |
| } catch (ArrayIndexOutOfBoundsException e) { |
| } |
| |
| try { |
| mDefaultLayout.getLineDirections(LARGER_THAN_LINE_COUNT); |
| fail("should throw ArrayIndexOutOfBoundsException"); |
| } catch (ArrayIndexOutOfBoundsException e) { |
| } |
| } |
| |
| /** |
| * Returns the (negative) number of extra pixels of ascent padding |
| * in the top line of the Layout. |
| */ |
| public void testGetTopPadding() { |
| assertTrue(mDefaultLayout.getTopPadding() < 0); |
| } |
| |
| /** |
| * Returns the number of extra pixels of descent padding in the bottom line of the Layout. |
| */ |
| public void testGetBottomPadding() { |
| assertTrue(mDefaultLayout.getBottomPadding() > 0); |
| } |
| |
| /* |
| * Returns the number of characters to be ellipsized away, or 0 if no ellipsis is to take place. |
| * So each line must >= 0 |
| */ |
| public void testGetEllipsisCount() { |
| // Multilines (6 lines) and TruncateAt.START so no ellipsis at all |
| mDefaultLayout = createEllipsizeStaticLayout(LAYOUT_TEXT, |
| TextUtils.TruncateAt.MIDDLE, |
| Integer.MAX_VALUE /* maxLines */); |
| |
| assertTrue(mDefaultLayout.getEllipsisCount(0) == 0); |
| assertTrue(mDefaultLayout.getEllipsisCount(1) == 0); |
| assertTrue(mDefaultLayout.getEllipsisCount(2) == 0); |
| assertTrue(mDefaultLayout.getEllipsisCount(3) == 0); |
| assertTrue(mDefaultLayout.getEllipsisCount(4) == 0); |
| assertTrue(mDefaultLayout.getEllipsisCount(5) == 0); |
| |
| try { |
| mDefaultLayout.getEllipsisCount(-1); |
| fail("should throw ArrayIndexOutOfBoundsException"); |
| } catch (ArrayIndexOutOfBoundsException e) { |
| } |
| |
| try { |
| mDefaultLayout.getEllipsisCount(LARGER_THAN_LINE_COUNT); |
| fail("should throw ArrayIndexOutOfBoundsException"); |
| } catch (ArrayIndexOutOfBoundsException e) { |
| } |
| |
| // Multilines (6 lines) and TruncateAt.MIDDLE so no ellipsis at all |
| mDefaultLayout = createEllipsizeStaticLayout(LAYOUT_TEXT, |
| TextUtils.TruncateAt.MIDDLE, |
| Integer.MAX_VALUE /* maxLines */); |
| |
| assertTrue(mDefaultLayout.getEllipsisCount(0) == 0); |
| assertTrue(mDefaultLayout.getEllipsisCount(1) == 0); |
| assertTrue(mDefaultLayout.getEllipsisCount(2) == 0); |
| assertTrue(mDefaultLayout.getEllipsisCount(3) == 0); |
| assertTrue(mDefaultLayout.getEllipsisCount(4) == 0); |
| assertTrue(mDefaultLayout.getEllipsisCount(5) == 0); |
| |
| // Multilines (6 lines) and TruncateAt.END so ellipsis only on the last line |
| mDefaultLayout = createEllipsizeStaticLayout(LAYOUT_TEXT, |
| TextUtils.TruncateAt.END, |
| Integer.MAX_VALUE /* maxLines */); |
| |
| assertTrue(mDefaultLayout.getEllipsisCount(0) == 0); |
| assertTrue(mDefaultLayout.getEllipsisCount(1) == 0); |
| assertTrue(mDefaultLayout.getEllipsisCount(2) == 0); |
| assertTrue(mDefaultLayout.getEllipsisCount(3) == 0); |
| assertTrue(mDefaultLayout.getEllipsisCount(4) == 0); |
| assertTrue(mDefaultLayout.getEllipsisCount(5) > 0); |
| |
| // Multilines (6 lines) and TruncateAt.MARQUEE so ellipsis only on the last line |
| mDefaultLayout = createEllipsizeStaticLayout(LAYOUT_TEXT, |
| TextUtils.TruncateAt.END, |
| Integer.MAX_VALUE /* maxLines */); |
| |
| assertTrue(mDefaultLayout.getEllipsisCount(0) == 0); |
| assertTrue(mDefaultLayout.getEllipsisCount(1) == 0); |
| assertTrue(mDefaultLayout.getEllipsisCount(2) == 0); |
| assertTrue(mDefaultLayout.getEllipsisCount(3) == 0); |
| assertTrue(mDefaultLayout.getEllipsisCount(4) == 0); |
| assertTrue(mDefaultLayout.getEllipsisCount(5) > 0); |
| |
| // Single line case and TruncateAt.END so that we have some ellipsis |
| mDefaultLayout = createEllipsizeStaticLayout(LAYOUT_TEXT_SINGLE_LINE, |
| TextUtils.TruncateAt.END, |
| 1); |
| assertTrue(mDefaultLayout.getEllipsisCount(0) > 0); |
| |
| // Single line case and TruncateAt.MIDDLE so that we have some ellipsis |
| mDefaultLayout = createEllipsizeStaticLayout(LAYOUT_TEXT_SINGLE_LINE, |
| TextUtils.TruncateAt.MIDDLE, |
| 1); |
| assertTrue(mDefaultLayout.getEllipsisCount(0) > 0); |
| |
| // Single line case and TruncateAt.END so that we have some ellipsis |
| mDefaultLayout = createEllipsizeStaticLayout(LAYOUT_TEXT_SINGLE_LINE, |
| TextUtils.TruncateAt.END, |
| 1); |
| assertTrue(mDefaultLayout.getEllipsisCount(0) > 0); |
| |
| // Single line case and TruncateAt.MARQUEE so that we have NO ellipsis |
| mDefaultLayout = createEllipsizeStaticLayout(LAYOUT_TEXT_SINGLE_LINE, |
| TextUtils.TruncateAt.MARQUEE, |
| 1); |
| assertTrue(mDefaultLayout.getEllipsisCount(0) == 0); |
| } |
| |
| /* |
| * Return the offset of the first character to be ellipsized away |
| * relative to the start of the line. |
| * (So 0 if the beginning of the line is ellipsized, not getLineStart().) |
| */ |
| public void testGetEllipsisStart() { |
| mDefaultLayout = createEllipsizeStaticLayout(); |
| assertTrue(mDefaultLayout.getEllipsisStart(0) >= 0); |
| assertTrue(mDefaultLayout.getEllipsisStart(1) >= 0); |
| |
| try { |
| mDefaultLayout.getEllipsisStart(-1); |
| fail("should throw ArrayIndexOutOfBoundsException"); |
| } catch (ArrayIndexOutOfBoundsException e) { |
| } |
| |
| try { |
| mDefaultLayout.getEllipsisStart(LARGER_THAN_LINE_COUNT); |
| fail("should throw ArrayIndexOutOfBoundsException"); |
| } catch (ArrayIndexOutOfBoundsException e) { |
| } |
| } |
| |
| /* |
| * Return the width to which this Layout is ellipsizing |
| * or getWidth() if it is not doing anything special. |
| * The constructor's Argument TextUtils.TruncateAt defines which EllipsizedWidth to use |
| * ellipsizedWidth if argument is not null |
| * outerWidth if argument is null |
| */ |
| public void testGetEllipsizedWidth() { |
| int ellipsizedWidth = 60; |
| int outerWidth = 100; |
| StaticLayout layout = new StaticLayout(LAYOUT_TEXT, 0, LAYOUT_TEXT.length(), |
| mDefaultPaint, outerWidth, DEFAULT_ALIGN, SPACE_MULTI, |
| SPACE_ADD, false, TextUtils.TruncateAt.END, ellipsizedWidth); |
| assertEquals(ellipsizedWidth, layout.getEllipsizedWidth()); |
| |
| layout = new StaticLayout(LAYOUT_TEXT, 0, LAYOUT_TEXT.length(), |
| mDefaultPaint, outerWidth, DEFAULT_ALIGN, SPACE_MULTI, SPACE_ADD, |
| false, null, ellipsizedWidth); |
| assertEquals(outerWidth, layout.getEllipsizedWidth()); |
| } |
| |
| /** |
| * scenario description: |
| * 1. set the text. |
| * 2. change the text |
| * 3. Check the text won't change to the StaticLayout |
| */ |
| public void testImmutableStaticLayout() { |
| Editable editable = Editable.Factory.getInstance().newEditable("123\t\n555"); |
| StaticLayout layout = new StaticLayout(editable, mDefaultPaint, |
| DEFAULT_OUTER_WIDTH, DEFAULT_ALIGN, SPACE_MULTI, SPACE_ADD, true); |
| |
| assertEquals(2, layout.getLineCount()); |
| assertTrue(mDefaultLayout.getLineContainsTab(0)); |
| |
| // change the text |
| editable.delete(0, editable.length() - 1); |
| |
| assertEquals(2, layout.getLineCount()); |
| assertTrue(layout.getLineContainsTab(0)); |
| |
| } |
| |
| // String wrapper for testing not well known implementation of CharSequence. |
| private class FakeCharSequence implements CharSequence { |
| private String mStr; |
| |
| public FakeCharSequence(String str) { |
| mStr = str; |
| } |
| |
| @Override |
| public char charAt(int index) { |
| return mStr.charAt(index); |
| } |
| |
| @Override |
| public int length() { |
| return mStr.length(); |
| } |
| |
| @Override |
| public CharSequence subSequence(int start, int end) { |
| return mStr.subSequence(start, end); |
| } |
| |
| @Override |
| public String toString() { |
| return mStr; |
| } |
| }; |
| |
| private List<CharSequence> buildTestCharSequences(String testString, Normalizer.Form[] forms) { |
| List<CharSequence> result = new ArrayList<CharSequence>(); |
| |
| List<String> normalizedStrings = new ArrayList<String>(); |
| for (Normalizer.Form form: forms) { |
| normalizedStrings.add(Normalizer.normalize(testString, form)); |
| } |
| |
| for (String str: normalizedStrings) { |
| result.add(str); |
| result.add(new SpannedString(str)); |
| result.add(new SpannableString(str)); |
| result.add(new SpannableStringBuilder(str)); // as a GraphicsOperations implementation. |
| result.add(new FakeCharSequence(str)); // as a not well known implementation. |
| } |
| return result; |
| } |
| |
| private String buildTestMessage(CharSequence seq) { |
| String normalized; |
| if (Normalizer.isNormalized(seq, Normalizer.Form.NFC)) { |
| normalized = "NFC"; |
| } else if (Normalizer.isNormalized(seq, Normalizer.Form.NFD)) { |
| normalized = "NFD"; |
| } else if (Normalizer.isNormalized(seq, Normalizer.Form.NFKC)) { |
| normalized = "NFKC"; |
| } else if (Normalizer.isNormalized(seq, Normalizer.Form.NFKD)) { |
| normalized = "NFKD"; |
| } else { |
| throw new IllegalStateException("Normalized form is not NFC/NFD/NFKC/NFKD"); |
| } |
| |
| StringBuilder builder = new StringBuilder(); |
| for (int i = 0; i < seq.length(); ++i) { |
| builder.append(String.format("0x%04X ", Integer.valueOf(seq.charAt(i)))); |
| } |
| |
| return "testString: \"" + seq.toString() + "\"[" + builder.toString() + "]" + |
| ", class: " + seq.getClass().getName() + |
| ", Normalization: " + normalized; |
| } |
| |
| public void testGetOffset_ASCII() { |
| String testStrings[] = { "abcde", "ab\ncd", "ab\tcd", "ab\n\nc", "ab\n\tc" }; |
| |
| for (String testString: testStrings) { |
| for (CharSequence seq: buildTestCharSequences(testString, Normalizer.Form.values())) { |
| StaticLayout layout = new StaticLayout(seq, mDefaultPaint, |
| DEFAULT_OUTER_WIDTH, DEFAULT_ALIGN, SPACE_MULTI, SPACE_ADD, true); |
| |
| String testLabel = buildTestMessage(seq); |
| |
| assertEquals(testLabel, 0, layout.getOffsetToLeftOf(0)); |
| assertEquals(testLabel, 0, layout.getOffsetToLeftOf(1)); |
| assertEquals(testLabel, 1, layout.getOffsetToLeftOf(2)); |
| assertEquals(testLabel, 2, layout.getOffsetToLeftOf(3)); |
| assertEquals(testLabel, 3, layout.getOffsetToLeftOf(4)); |
| assertEquals(testLabel, 4, layout.getOffsetToLeftOf(5)); |
| |
| assertEquals(testLabel, 1, layout.getOffsetToRightOf(0)); |
| assertEquals(testLabel, 2, layout.getOffsetToRightOf(1)); |
| assertEquals(testLabel, 3, layout.getOffsetToRightOf(2)); |
| assertEquals(testLabel, 4, layout.getOffsetToRightOf(3)); |
| assertEquals(testLabel, 5, layout.getOffsetToRightOf(4)); |
| assertEquals(testLabel, 5, layout.getOffsetToRightOf(5)); |
| } |
| } |
| |
| String testString = "ab\r\nde"; |
| for (CharSequence seq: buildTestCharSequences(testString, Normalizer.Form.values())) { |
| StaticLayout layout = new StaticLayout(seq, mDefaultPaint, |
| DEFAULT_OUTER_WIDTH, DEFAULT_ALIGN, SPACE_MULTI, SPACE_ADD, true); |
| |
| String testLabel = buildTestMessage(seq); |
| |
| assertEquals(testLabel, 0, layout.getOffsetToLeftOf(0)); |
| assertEquals(testLabel, 0, layout.getOffsetToLeftOf(1)); |
| assertEquals(testLabel, 1, layout.getOffsetToLeftOf(2)); |
| assertEquals(testLabel, 2, layout.getOffsetToLeftOf(3)); |
| assertEquals(testLabel, 2, layout.getOffsetToLeftOf(4)); |
| assertEquals(testLabel, 4, layout.getOffsetToLeftOf(5)); |
| assertEquals(testLabel, 5, layout.getOffsetToLeftOf(6)); |
| |
| assertEquals(testLabel, 1, layout.getOffsetToRightOf(0)); |
| assertEquals(testLabel, 2, layout.getOffsetToRightOf(1)); |
| assertEquals(testLabel, 4, layout.getOffsetToRightOf(2)); |
| assertEquals(testLabel, 4, layout.getOffsetToRightOf(3)); |
| assertEquals(testLabel, 5, layout.getOffsetToRightOf(4)); |
| assertEquals(testLabel, 6, layout.getOffsetToRightOf(5)); |
| assertEquals(testLabel, 6, layout.getOffsetToRightOf(6)); |
| } |
| } |
| |
| public void testGetOffset_UNICODE() { |
| String testStrings[] = new String[] { |
| // Cyrillic alphabets. |
| "\u0410\u0411\u0412\u0413\u0414", |
| // Japanese Hiragana Characters. |
| "\u3042\u3044\u3046\u3048\u304A", |
| }; |
| |
| for (String testString: testStrings) { |
| for (CharSequence seq: buildTestCharSequences(testString, Normalizer.Form.values())) { |
| StaticLayout layout = new StaticLayout(seq, mDefaultPaint, |
| DEFAULT_OUTER_WIDTH, DEFAULT_ALIGN, SPACE_MULTI, SPACE_ADD, true); |
| |
| String testLabel = buildTestMessage(seq); |
| |
| assertEquals(testLabel, 0, layout.getOffsetToLeftOf(0)); |
| assertEquals(testLabel, 0, layout.getOffsetToLeftOf(1)); |
| assertEquals(testLabel, 1, layout.getOffsetToLeftOf(2)); |
| assertEquals(testLabel, 2, layout.getOffsetToLeftOf(3)); |
| assertEquals(testLabel, 3, layout.getOffsetToLeftOf(4)); |
| assertEquals(testLabel, 4, layout.getOffsetToLeftOf(5)); |
| |
| assertEquals(testLabel, 1, layout.getOffsetToRightOf(0)); |
| assertEquals(testLabel, 2, layout.getOffsetToRightOf(1)); |
| assertEquals(testLabel, 3, layout.getOffsetToRightOf(2)); |
| assertEquals(testLabel, 4, layout.getOffsetToRightOf(3)); |
| assertEquals(testLabel, 5, layout.getOffsetToRightOf(4)); |
| assertEquals(testLabel, 5, layout.getOffsetToRightOf(5)); |
| } |
| } |
| } |
| |
| public void testGetOffset_UNICODE_Normalization() { |
| // "A" with acute, circumflex, tilde, diaeresis, ring above. |
| String testString = "\u00C1\u00C2\u00C3\u00C4\u00C5"; |
| Normalizer.Form[] oneUnicodeForms = { Normalizer.Form.NFC, Normalizer.Form.NFKC }; |
| for (CharSequence seq: buildTestCharSequences(testString, oneUnicodeForms)) { |
| StaticLayout layout = new StaticLayout(seq, mDefaultPaint, |
| DEFAULT_OUTER_WIDTH, DEFAULT_ALIGN, SPACE_MULTI, SPACE_ADD, true); |
| |
| String testLabel = buildTestMessage(seq); |
| |
| assertEquals(testLabel, 0, layout.getOffsetToLeftOf(0)); |
| assertEquals(testLabel, 0, layout.getOffsetToLeftOf(1)); |
| assertEquals(testLabel, 1, layout.getOffsetToLeftOf(2)); |
| assertEquals(testLabel, 2, layout.getOffsetToLeftOf(3)); |
| assertEquals(testLabel, 3, layout.getOffsetToLeftOf(4)); |
| assertEquals(testLabel, 4, layout.getOffsetToLeftOf(5)); |
| |
| assertEquals(testLabel, 1, layout.getOffsetToRightOf(0)); |
| assertEquals(testLabel, 2, layout.getOffsetToRightOf(1)); |
| assertEquals(testLabel, 3, layout.getOffsetToRightOf(2)); |
| assertEquals(testLabel, 4, layout.getOffsetToRightOf(3)); |
| assertEquals(testLabel, 5, layout.getOffsetToRightOf(4)); |
| assertEquals(testLabel, 5, layout.getOffsetToRightOf(5)); |
| } |
| |
| Normalizer.Form[] twoUnicodeForms = { Normalizer.Form.NFD, Normalizer.Form.NFKD }; |
| for (CharSequence seq: buildTestCharSequences(testString, twoUnicodeForms)) { |
| StaticLayout layout = new StaticLayout(seq, mDefaultPaint, |
| DEFAULT_OUTER_WIDTH, DEFAULT_ALIGN, SPACE_MULTI, SPACE_ADD, true); |
| |
| String testLabel = buildTestMessage(seq); |
| |
| assertEquals(testLabel, 0, layout.getOffsetToLeftOf(0)); |
| assertEquals(testLabel, 0, layout.getOffsetToLeftOf(1)); |
| assertEquals(testLabel, 0, layout.getOffsetToLeftOf(2)); |
| assertEquals(testLabel, 2, layout.getOffsetToLeftOf(3)); |
| assertEquals(testLabel, 2, layout.getOffsetToLeftOf(4)); |
| assertEquals(testLabel, 4, layout.getOffsetToLeftOf(5)); |
| assertEquals(testLabel, 4, layout.getOffsetToLeftOf(6)); |
| assertEquals(testLabel, 6, layout.getOffsetToLeftOf(7)); |
| assertEquals(testLabel, 6, layout.getOffsetToLeftOf(8)); |
| assertEquals(testLabel, 8, layout.getOffsetToLeftOf(9)); |
| assertEquals(testLabel, 8, layout.getOffsetToLeftOf(10)); |
| |
| assertEquals(testLabel, 2, layout.getOffsetToRightOf(0)); |
| assertEquals(testLabel, 2, layout.getOffsetToRightOf(1)); |
| assertEquals(testLabel, 4, layout.getOffsetToRightOf(2)); |
| assertEquals(testLabel, 4, layout.getOffsetToRightOf(3)); |
| assertEquals(testLabel, 6, layout.getOffsetToRightOf(4)); |
| assertEquals(testLabel, 6, layout.getOffsetToRightOf(5)); |
| assertEquals(testLabel, 8, layout.getOffsetToRightOf(6)); |
| assertEquals(testLabel, 8, layout.getOffsetToRightOf(7)); |
| assertEquals(testLabel, 10, layout.getOffsetToRightOf(8)); |
| assertEquals(testLabel, 10, layout.getOffsetToRightOf(9)); |
| assertEquals(testLabel, 10, layout.getOffsetToRightOf(10)); |
| } |
| } |
| |
| public void testGetOffset_UNICODE_SurrogatePairs() { |
| // Emoticons for surrogate pairs tests. |
| String testString = |
| "\uD83D\uDE00\uD83D\uDE01\uD83D\uDE02\uD83D\uDE03\uD83D\uDE04"; |
| for (CharSequence seq: buildTestCharSequences(testString, Normalizer.Form.values())) { |
| StaticLayout layout = new StaticLayout(seq, mDefaultPaint, |
| DEFAULT_OUTER_WIDTH, DEFAULT_ALIGN, SPACE_MULTI, SPACE_ADD, true); |
| |
| String testLabel = buildTestMessage(seq); |
| |
| assertEquals(testLabel, 0, layout.getOffsetToLeftOf(0)); |
| assertEquals(testLabel, 0, layout.getOffsetToLeftOf(1)); |
| assertEquals(testLabel, 0, layout.getOffsetToLeftOf(2)); |
| assertEquals(testLabel, 2, layout.getOffsetToLeftOf(3)); |
| assertEquals(testLabel, 2, layout.getOffsetToLeftOf(4)); |
| assertEquals(testLabel, 4, layout.getOffsetToLeftOf(5)); |
| assertEquals(testLabel, 4, layout.getOffsetToLeftOf(6)); |
| assertEquals(testLabel, 6, layout.getOffsetToLeftOf(7)); |
| assertEquals(testLabel, 6, layout.getOffsetToLeftOf(8)); |
| assertEquals(testLabel, 8, layout.getOffsetToLeftOf(9)); |
| assertEquals(testLabel, 8, layout.getOffsetToLeftOf(10)); |
| |
| assertEquals(testLabel, 2, layout.getOffsetToRightOf(0)); |
| assertEquals(testLabel, 2, layout.getOffsetToRightOf(1)); |
| assertEquals(testLabel, 4, layout.getOffsetToRightOf(2)); |
| assertEquals(testLabel, 4, layout.getOffsetToRightOf(3)); |
| assertEquals(testLabel, 6, layout.getOffsetToRightOf(4)); |
| assertEquals(testLabel, 6, layout.getOffsetToRightOf(5)); |
| assertEquals(testLabel, 8, layout.getOffsetToRightOf(6)); |
| assertEquals(testLabel, 8, layout.getOffsetToRightOf(7)); |
| assertEquals(testLabel, 10, layout.getOffsetToRightOf(8)); |
| assertEquals(testLabel, 10, layout.getOffsetToRightOf(9)); |
| assertEquals(testLabel, 10, layout.getOffsetToRightOf(10)); |
| } |
| } |
| |
| public void testGetOffset_UNICODE_Thai() { |
| // Thai Characters. The expected cursorable boundary is |
| // | \u0E02 | \u0E2D | \u0E1A | \u0E04\u0E38 | \u0E13 | |
| String testString = "\u0E02\u0E2D\u0E1A\u0E04\u0E38\u0E13"; |
| for (CharSequence seq: buildTestCharSequences(testString, Normalizer.Form.values())) { |
| StaticLayout layout = new StaticLayout(seq, mDefaultPaint, |
| DEFAULT_OUTER_WIDTH, DEFAULT_ALIGN, SPACE_MULTI, SPACE_ADD, true); |
| |
| String testLabel = buildTestMessage(seq); |
| |
| assertEquals(testLabel, 0, layout.getOffsetToLeftOf(0)); |
| assertEquals(testLabel, 0, layout.getOffsetToLeftOf(1)); |
| assertEquals(testLabel, 1, layout.getOffsetToLeftOf(2)); |
| assertEquals(testLabel, 2, layout.getOffsetToLeftOf(3)); |
| assertEquals(testLabel, 3, layout.getOffsetToLeftOf(4)); |
| assertEquals(testLabel, 3, layout.getOffsetToLeftOf(5)); |
| assertEquals(testLabel, 5, layout.getOffsetToLeftOf(6)); |
| |
| assertEquals(testLabel, 1, layout.getOffsetToRightOf(0)); |
| assertEquals(testLabel, 2, layout.getOffsetToRightOf(1)); |
| assertEquals(testLabel, 3, layout.getOffsetToRightOf(2)); |
| assertEquals(testLabel, 5, layout.getOffsetToRightOf(3)); |
| assertEquals(testLabel, 5, layout.getOffsetToRightOf(4)); |
| assertEquals(testLabel, 6, layout.getOffsetToRightOf(5)); |
| assertEquals(testLabel, 6, layout.getOffsetToRightOf(6)); |
| } |
| } |
| |
| public void testGetOffset_UNICODE_Hebrew() { |
| String testString = "\u05DE\u05E1\u05E2\u05D3\u05D4"; // Hebrew Characters |
| for (CharSequence seq: buildTestCharSequences(testString, Normalizer.Form.values())) { |
| StaticLayout layout = new StaticLayout(seq, mDefaultPaint, |
| DEFAULT_OUTER_WIDTH, DEFAULT_ALIGN, |
| TextDirectionHeuristics.RTL, SPACE_MULTI, SPACE_ADD, true); |
| |
| String testLabel = buildTestMessage(seq); |
| |
| assertEquals(testLabel, 1, layout.getOffsetToLeftOf(0)); |
| assertEquals(testLabel, 2, layout.getOffsetToLeftOf(1)); |
| assertEquals(testLabel, 3, layout.getOffsetToLeftOf(2)); |
| assertEquals(testLabel, 4, layout.getOffsetToLeftOf(3)); |
| assertEquals(testLabel, 5, layout.getOffsetToLeftOf(4)); |
| assertEquals(testLabel, 5, layout.getOffsetToLeftOf(5)); |
| |
| assertEquals(testLabel, 0, layout.getOffsetToRightOf(0)); |
| assertEquals(testLabel, 0, layout.getOffsetToRightOf(1)); |
| assertEquals(testLabel, 1, layout.getOffsetToRightOf(2)); |
| assertEquals(testLabel, 2, layout.getOffsetToRightOf(3)); |
| assertEquals(testLabel, 3, layout.getOffsetToRightOf(4)); |
| assertEquals(testLabel, 4, layout.getOffsetToRightOf(5)); |
| } |
| } |
| |
| public void testGetOffset_UNICODE_Arabic() { |
| // Arabic Characters. The expected cursorable boundary is |
| // | \u0623 \u064F | \u0633 \u0652 | \u0631 \u064E | \u0629 \u064C |"; |
| String testString = "\u0623\u064F\u0633\u0652\u0631\u064E\u0629\u064C"; |
| |
| Normalizer.Form[] oneUnicodeForms = { Normalizer.Form.NFC, Normalizer.Form.NFKC }; |
| for (CharSequence seq: buildTestCharSequences(testString, oneUnicodeForms)) { |
| StaticLayout layout = new StaticLayout(seq, mDefaultPaint, |
| DEFAULT_OUTER_WIDTH, DEFAULT_ALIGN, SPACE_MULTI, SPACE_ADD, true); |
| |
| String testLabel = buildTestMessage(seq); |
| |
| assertEquals(testLabel, 2, layout.getOffsetToLeftOf(0)); |
| assertEquals(testLabel, 2, layout.getOffsetToLeftOf(1)); |
| assertEquals(testLabel, 4, layout.getOffsetToLeftOf(2)); |
| assertEquals(testLabel, 4, layout.getOffsetToLeftOf(3)); |
| assertEquals(testLabel, 6, layout.getOffsetToLeftOf(4)); |
| assertEquals(testLabel, 6, layout.getOffsetToLeftOf(5)); |
| assertEquals(testLabel, 8, layout.getOffsetToLeftOf(6)); |
| assertEquals(testLabel, 8, layout.getOffsetToLeftOf(7)); |
| assertEquals(testLabel, 8, layout.getOffsetToLeftOf(8)); |
| |
| assertEquals(testLabel, 0, layout.getOffsetToRightOf(0)); |
| assertEquals(testLabel, 0, layout.getOffsetToRightOf(1)); |
| assertEquals(testLabel, 0, layout.getOffsetToRightOf(2)); |
| assertEquals(testLabel, 2, layout.getOffsetToRightOf(3)); |
| assertEquals(testLabel, 2, layout.getOffsetToRightOf(4)); |
| assertEquals(testLabel, 4, layout.getOffsetToRightOf(5)); |
| assertEquals(testLabel, 4, layout.getOffsetToRightOf(6)); |
| assertEquals(testLabel, 6, layout.getOffsetToRightOf(7)); |
| assertEquals(testLabel, 6, layout.getOffsetToRightOf(8)); |
| } |
| } |
| |
| public void testGetOffset_UNICODE_Bidi() { |
| // String having RTL characters and LTR characters |
| |
| // LTR Context |
| // The first and last two characters are LTR characters. |
| String testString = "\u0061\u0062\u05DE\u05E1\u05E2\u0063\u0064"; |
| // Logical order: [L1] [L2] [R1] [R2] [R3] [L3] [L4] |
| // 0 1 2 3 4 5 6 7 |
| // Display order: [L1] [L2] [R3] [R2] [R1] [L3] [L4] |
| // 0 1 2 4 3 5 6 7 |
| // [L?] means ?th LTR character and [R?] means ?th RTL character. |
| for (CharSequence seq: buildTestCharSequences(testString, Normalizer.Form.values())) { |
| StaticLayout layout = new StaticLayout(seq, mDefaultPaint, |
| DEFAULT_OUTER_WIDTH, DEFAULT_ALIGN, SPACE_MULTI, SPACE_ADD, true); |
| |
| String testLabel = buildTestMessage(seq); |
| |
| assertEquals(testLabel, 0, layout.getOffsetToLeftOf(0)); |
| assertEquals(testLabel, 0, layout.getOffsetToLeftOf(1)); |
| assertEquals(testLabel, 1, layout.getOffsetToLeftOf(2)); |
| assertEquals(testLabel, 4, layout.getOffsetToLeftOf(3)); |
| assertEquals(testLabel, 2, layout.getOffsetToLeftOf(4)); |
| assertEquals(testLabel, 3, layout.getOffsetToLeftOf(5)); |
| assertEquals(testLabel, 5, layout.getOffsetToLeftOf(6)); |
| assertEquals(testLabel, 6, layout.getOffsetToLeftOf(7)); |
| |
| assertEquals(testLabel, 1, layout.getOffsetToRightOf(0)); |
| assertEquals(testLabel, 2, layout.getOffsetToRightOf(1)); |
| assertEquals(testLabel, 4, layout.getOffsetToRightOf(2)); |
| assertEquals(testLabel, 5, layout.getOffsetToRightOf(3)); |
| assertEquals(testLabel, 3, layout.getOffsetToRightOf(4)); |
| assertEquals(testLabel, 6, layout.getOffsetToRightOf(5)); |
| assertEquals(testLabel, 7, layout.getOffsetToRightOf(6)); |
| assertEquals(testLabel, 7, layout.getOffsetToRightOf(7)); |
| } |
| |
| // RTL Context |
| // The first and last two characters are RTL characters. |
| String testString2 = "\u05DE\u05E1\u0063\u0064\u0065\u05DE\u05E1"; |
| // Logical order: [R1] [R2] [L1] [L2] [L3] [R3] [R4] |
| // 0 1 2 3 4 5 6 7 |
| // Display order: [R4] [R3] [L1] [L2] [L3] [R2] [R1] |
| // 7 6 5 3 4 2 1 0 |
| // [L?] means ?th LTR character and [R?] means ?th RTL character. |
| for (CharSequence seq: buildTestCharSequences(testString2, Normalizer.Form.values())) { |
| StaticLayout layout = new StaticLayout(seq, mDefaultPaint, |
| DEFAULT_OUTER_WIDTH, DEFAULT_ALIGN, SPACE_MULTI, SPACE_ADD, true); |
| |
| String testLabel = buildTestMessage(seq); |
| |
| assertEquals(testLabel, 1, layout.getOffsetToLeftOf(0)); |
| assertEquals(testLabel, 2, layout.getOffsetToLeftOf(1)); |
| assertEquals(testLabel, 4, layout.getOffsetToLeftOf(2)); |
| assertEquals(testLabel, 5, layout.getOffsetToLeftOf(3)); |
| assertEquals(testLabel, 3, layout.getOffsetToLeftOf(4)); |
| assertEquals(testLabel, 6, layout.getOffsetToLeftOf(5)); |
| assertEquals(testLabel, 7, layout.getOffsetToLeftOf(6)); |
| assertEquals(testLabel, 7, layout.getOffsetToLeftOf(7)); |
| |
| assertEquals(testLabel, 0, layout.getOffsetToRightOf(0)); |
| assertEquals(testLabel, 0, layout.getOffsetToRightOf(1)); |
| assertEquals(testLabel, 1, layout.getOffsetToRightOf(2)); |
| assertEquals(testLabel, 4, layout.getOffsetToRightOf(3)); |
| assertEquals(testLabel, 2, layout.getOffsetToRightOf(4)); |
| assertEquals(testLabel, 3, layout.getOffsetToRightOf(5)); |
| assertEquals(testLabel, 5, layout.getOffsetToRightOf(6)); |
| assertEquals(testLabel, 6, layout.getOffsetToRightOf(7)); |
| } |
| } |
| } |
