--- /dev/null
+/*
+ * 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.graphics.Paint.FontMetricsInt;
+import android.test.AndroidTestCase;
+import android.text.DynamicLayout;
+import android.text.Layout;
+import android.text.TextPaint;
+import android.text.TextUtils;
+import dalvik.annotation.TestLevel;
+import dalvik.annotation.TestTargetClass;
+import dalvik.annotation.TestTargetNew;
+import dalvik.annotation.TestTargets;
+import dalvik.annotation.ToBeFixed;
+
+@TestTargetClass(DynamicLayout.class)
+public class DynamicLayoutTest extends AndroidTestCase {
+
+ protected static final float SPACING_MULT_NO_SCALE = 1.0f;
+ protected static final float SPACING_ADD_NO_SCALE = 0.0f;
+ protected static final int DEFAULT_OUTER_WIDTH = 150;
+ protected static final CharSequence SINGLELINE_CHAR_SEQUENCE = "......";
+ protected static final String[] TEXT = {"CharSequence\n", "Char\tSequence\n", "CharSequence"};
+ protected static final CharSequence MULTLINE_CHAR_SEQUENCE = TEXT[0] + TEXT[1] + TEXT[2];
+ protected static final Layout.Alignment DEFAULT_ALIGN = Layout.Alignment.ALIGN_CENTER;
+ protected TextPaint mDefaultPaint;
+
+ private static final int LINE0 = 0;
+ private static final int LINE0_TOP = 0;
+ private static final int LINE1 = 1;
+ private static final int LINE2 = 2;
+ private static final int LINE3 = 3;
+
+ private static final int ELLIPSIS_UNDEFINED = 0x80000000;
+
+ private DynamicLayout mDynamicLayout;
+
+ @Override
+ protected void setUp() throws Exception {
+ super.setUp();
+ mDefaultPaint = new TextPaint();
+ mDynamicLayout = new DynamicLayout(MULTLINE_CHAR_SEQUENCE,
+ mDefaultPaint,
+ DEFAULT_OUTER_WIDTH,
+ DEFAULT_ALIGN,
+ SPACING_MULT_NO_SCALE,
+ SPACING_ADD_NO_SCALE,
+ true);
+ }
+
+ @TestTargets({
+ @TestTargetNew(
+ level = TestLevel.COMPLETE,
+ method = "DynamicLayout",
+ args = {java.lang.CharSequence.class, java.lang.CharSequence.class,
+ android.text.TextPaint.class, int.class, android.text.Layout.Alignment.class,
+ float.class, float.class, boolean.class}
+ ),
+ @TestTargetNew(
+ level = TestLevel.COMPLETE,
+ method = "DynamicLayout",
+ args = {java.lang.CharSequence.class, java.lang.CharSequence.class,
+ android.text.TextPaint.class, int.class, android.text.Layout.Alignment.class,
+ float.class, float.class, boolean.class,
+ android.text.TextUtils.TruncateAt.class, int.class}
+ ),
+ @TestTargetNew(
+ level = TestLevel.COMPLETE,
+ method = "DynamicLayout",
+ args = {java.lang.CharSequence.class, android.text.TextPaint.class,
+ int.class, android.text.Layout.Alignment.class,
+ float.class, float.class, boolean.class}
+ )
+ })
+ public void testConstructors() {
+ new DynamicLayout(SINGLELINE_CHAR_SEQUENCE,
+ MULTLINE_CHAR_SEQUENCE,
+ mDefaultPaint,
+ DEFAULT_OUTER_WIDTH,
+ DEFAULT_ALIGN,
+ SPACING_MULT_NO_SCALE,
+ SPACING_ADD_NO_SCALE,
+ true);
+ new DynamicLayout(SINGLELINE_CHAR_SEQUENCE,
+ MULTLINE_CHAR_SEQUENCE,
+ mDefaultPaint,
+ DEFAULT_OUTER_WIDTH,
+ DEFAULT_ALIGN,
+ SPACING_MULT_NO_SCALE,
+ SPACING_ADD_NO_SCALE,
+ true,
+ TextUtils.TruncateAt.START,
+ DEFAULT_OUTER_WIDTH);
+ new DynamicLayout(MULTLINE_CHAR_SEQUENCE,
+ mDefaultPaint,
+ DEFAULT_OUTER_WIDTH,
+ DEFAULT_ALIGN,
+ SPACING_MULT_NO_SCALE,
+ SPACING_ADD_NO_SCALE,
+ true);
+ }
+
+ @TestTargets({
+ @TestTargetNew(
+ level = TestLevel.PARTIAL,
+ method = "getEllipsisCount",
+ args = {int.class}
+ ),
+ @TestTargetNew(
+ level = TestLevel.PARTIAL,
+ method = "getEllipsisStart",
+ args = {int.class}
+ ),
+ @TestTargetNew(
+ level = TestLevel.PARTIAL,
+ method = "getEllipsizedWidth",
+ args = {}
+ )
+ })
+ @ToBeFixed(bug = "1695243", explanation = "DynamicLayout javadoc is incomplete.")
+ public void testEllipsis() {
+ final DynamicLayout dynamicLayout = new DynamicLayout(SINGLELINE_CHAR_SEQUENCE,
+ MULTLINE_CHAR_SEQUENCE,
+ mDefaultPaint,
+ DEFAULT_OUTER_WIDTH,
+ DEFAULT_ALIGN,
+ SPACING_MULT_NO_SCALE,
+ SPACING_ADD_NO_SCALE,
+ true,
+ TextUtils.TruncateAt.START,
+ DEFAULT_OUTER_WIDTH);
+ assertEquals(0, dynamicLayout.getEllipsisCount(LINE1));
+ assertEquals(ELLIPSIS_UNDEFINED, dynamicLayout.getEllipsisStart(LINE1));
+ assertEquals(DEFAULT_OUTER_WIDTH, dynamicLayout.getEllipsizedWidth());
+ }
+
+ /*
+ * Test whether include the padding to calculate the layout.
+ * 1. Include padding while calculate the layout.
+ * 2. Don't include padding while calculate the layout.
+ */
+ @TestTargets({
+ @TestTargetNew(
+ level = TestLevel.COMPLETE,
+ method = "getTopPadding",
+ args = {}
+ ),
+ @TestTargetNew(
+ level = TestLevel.COMPLETE,
+ method = "getBottomPadding",
+ args = {}
+ )
+ })
+ @ToBeFixed(bug = "1695243", explanation = "DynamicLayout javadoc is incomplete.")
+ public void testIncludePadding() {
+ final FontMetricsInt fontMetricsInt = mDefaultPaint.getFontMetricsInt();
+
+ DynamicLayout dynamicLayout = new DynamicLayout(SINGLELINE_CHAR_SEQUENCE,
+ mDefaultPaint,
+ DEFAULT_OUTER_WIDTH,
+ DEFAULT_ALIGN,
+ SPACING_MULT_NO_SCALE,
+ SPACING_ADD_NO_SCALE,
+ true);
+ assertEquals(fontMetricsInt.top - fontMetricsInt.ascent, dynamicLayout.getTopPadding());
+ assertEquals(fontMetricsInt.bottom - fontMetricsInt.descent,
+ dynamicLayout.getBottomPadding());
+
+ dynamicLayout = new DynamicLayout(SINGLELINE_CHAR_SEQUENCE,
+ mDefaultPaint,
+ DEFAULT_OUTER_WIDTH,
+ DEFAULT_ALIGN,
+ SPACING_MULT_NO_SCALE,
+ SPACING_ADD_NO_SCALE,
+ false);
+ assertEquals(0, dynamicLayout.getTopPadding());
+ assertEquals(0, dynamicLayout.getBottomPadding());
+ }
+
+ /*
+ * Test the line count and whether include the Tab the layout.
+ * 1. Include Tab. 2. Don't include Tab Use the Y-coordinate to calculate the line number
+ * Test the line top
+ * 1. the Y-coordinate of line top.2. the Y-coordinate of baseline.
+ */
+ @TestTargets({
+ @TestTargetNew(
+ level = TestLevel.COMPLETE,
+ method = "getLineContainsTab",
+ args = {int.class}
+ ),
+ @TestTargetNew(
+ level = TestLevel.COMPLETE,
+ method = "getLineCount",
+ args = {}
+ ),
+ @TestTargetNew(
+ level = TestLevel.COMPLETE,
+ method = "getLineDescent",
+ args = {int.class}
+ ),
+ @TestTargetNew(
+ level = TestLevel.COMPLETE,
+ method = "getLineTop",
+ args = {int.class}
+ ),
+ @TestTargetNew(
+ level = TestLevel.COMPLETE,
+ method = "getLineDirections",
+ args = {int.class}
+ ),
+ @TestTargetNew(
+ level = TestLevel.COMPLETE,
+ method = "getParagraphDirection",
+ args = {int.class}
+ ),
+ @TestTargetNew(
+ level = TestLevel.COMPLETE,
+ method = "getLineStart",
+ args = {int.class}
+ )
+ })
+ public void testLineLayout() {
+ assertEquals(TEXT.length, mDynamicLayout.getLineCount());
+ assertFalse(mDynamicLayout.getLineContainsTab(LINE0));
+ assertTrue(mDynamicLayout.getLineContainsTab(LINE1));
+
+ assertEquals(LINE0_TOP, mDynamicLayout.getLineTop(LINE0));
+
+ assertEquals(mDynamicLayout.getLineBottom(LINE0), mDynamicLayout.getLineTop(LINE1));
+ assertEquals(mDynamicLayout.getLineBottom(LINE1), mDynamicLayout.getLineTop(LINE2));
+ assertEquals(mDynamicLayout.getLineBottom(LINE2), mDynamicLayout.getLineTop(LINE3));
+
+ try {
+ assertEquals(mDynamicLayout.getLineBottom(mDynamicLayout.getLineCount()),
+ mDynamicLayout.getLineTop(mDynamicLayout.getLineCount() + 1));
+ fail("Test DynamicLayout fail, should throw IndexOutOfBoundsException.");
+ } catch (IndexOutOfBoundsException e) {
+ // expected
+ }
+
+ assertEquals(mDynamicLayout.getLineDescent(LINE0) - mDynamicLayout.getLineAscent(LINE0),
+ mDynamicLayout.getLineBottom(LINE0));
+
+ assertEquals(mDynamicLayout.getLineDescent(LINE1) - mDynamicLayout.getLineAscent(LINE1),
+ mDynamicLayout.getLineBottom(LINE1) - mDynamicLayout.getLineBottom(LINE0));
+
+ assertEquals(mDynamicLayout.getLineDescent(LINE2) - mDynamicLayout.getLineAscent(LINE2),
+ mDynamicLayout.getLineBottom(LINE2) - mDynamicLayout.getLineBottom(LINE1));
+
+ assertEquals(LINE0, mDynamicLayout.getLineForVertical(mDynamicLayout.getLineTop(LINE0)));
+
+ assertNotNull(mDynamicLayout.getLineDirections(LINE0));
+ assertEquals(Layout.DIR_LEFT_TO_RIGHT, mDynamicLayout.getParagraphDirection(LINE0));
+
+ assertEquals(0, mDynamicLayout.getLineStart(LINE0));
+ assertEquals(TEXT[0].length(), mDynamicLayout.getLineStart(LINE1));
+ assertEquals(TEXT[0].length() + TEXT[1].length(), mDynamicLayout.getLineStart(LINE2));
+ }
+}
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