Examples with TextPaint android.text.TextPaint used on opensource projects

Example 91 with TextPaint

use of android.text.TextPaint in project android_frameworks_base by crdroidandroid.

the class PackageItemInfo method loadSafeLabel.

/**
     * Same as {@link #loadLabel(PackageManager)} with the addition that
     * the returned label is safe for being presented in the UI since it
     * will not contain new lines and the length will be limited to a
     * reasonable amount. This prevents a malicious party to influence UI
     * layout via the app label misleading the user into performing a
     * detrimental for them action. If the label is too long it will be
     * truncated and ellipsized at the end.
     *
     * @param pm A PackageManager from which the label can be loaded; usually
     * the PackageManager from which you originally retrieved this item
     * @return Returns a CharSequence containing the item's label. If the
     * item does not have a label, its name is returned.
     *
     * @hide
     */
@SystemApi
@NonNull
public CharSequence loadSafeLabel(@NonNull PackageManager pm) {
    // loadLabel() always returns non-null
    String label = loadLabel(pm).toString();
    // strip HTML tags to avoid <br> and other tags overwriting original message
    String labelStr = Html.fromHtml(label).toString();
    // If the label contains new line characters it may push the UI
    // down to hide a part of it. Labels shouldn't have new line
    // characters, so just truncate at the first time one is seen.
    final int labelLength = labelStr.length();
    int offset = 0;
    while (offset < labelLength) {
        final int codePoint = labelStr.codePointAt(offset);
        final int type = Character.getType(codePoint);
        if (type == Character.LINE_SEPARATOR || type == Character.CONTROL || type == Character.PARAGRAPH_SEPARATOR) {
            labelStr = labelStr.substring(0, offset);
            break;
        }
        // replace all non-break space to " " in order to be trimmed
        if (type == Character.SPACE_SEPARATOR) {
            labelStr = labelStr.substring(0, offset) + " " + labelStr.substring(offset + Character.charCount(codePoint));
        }
        offset += Character.charCount(codePoint);
    }
    labelStr = labelStr.trim();
    if (labelStr.isEmpty()) {
        return packageName;
    }
    TextPaint paint = new TextPaint();
    paint.setTextSize(42);
    return TextUtils.ellipsize(labelStr, paint, MAX_LABEL_SIZE_PX, TextUtils.TruncateAt.END);
}

Example 92 with TextPaint

use of android.text.TextPaint in project android_frameworks_base by crdroidandroid.

the class StaticLayoutTest method moveCursorToLeftCursorableOffset.

private void moveCursorToLeftCursorableOffset(EditorState state, TextPaint paint) {
    assertEquals("The editor has selection", state.mSelectionStart, state.mSelectionEnd);
    final Layout layout = builder().setText(state.mText.toString()).setPaint(paint).build();
    final int newOffset = layout.getOffsetToLeftOf(state.mSelectionStart);
    state.mSelectionStart = state.mSelectionEnd = newOffset;
}

Example 93 with TextPaint

use of android.text.TextPaint in project android_frameworks_base by crdroidandroid.

the class StaticLayoutTest method testEmojiOffset.

/**
     * Tests for keycap, variation selectors, flags are in CTS.
     * See {@link android.text.cts.StaticLayoutTest}.
     */
public void testEmojiOffset() {
    EditorState state = new EditorState();
    TextPaint paint = new TextPaint();
    // Odd numbered regional indicator symbols.
    // U+1F1E6 is REGIONAL INDICATOR SYMBOL LETTER A, U+1F1E8 is REGIONAL INDICATOR SYMBOL
    // LETTER C.
    state.setByString("| U+1F1E6 U+1F1E8 U+1F1E6 U+1F1E8 U+1F1E6");
    moveCursorToRightCursorableOffset(state, paint);
    state.setByString("U+1F1E6 U+1F1E8 | U+1F1E6 U+1F1E8 U+1F1E6");
    moveCursorToRightCursorableOffset(state, paint);
    state.setByString("U+1F1E6 U+1F1E8 U+1F1E6 U+1F1E8 | U+1F1E6");
    moveCursorToRightCursorableOffset(state, paint);
    state.setByString("U+1F1E6 U+1F1E8 U+1F1E6 U+1F1E8 U+1F1E6 |");
    moveCursorToRightCursorableOffset(state, paint);
    state.setByString("U+1F1E6 U+1F1E8 U+1F1E6 U+1F1E8 U+1F1E6 |");
    moveCursorToLeftCursorableOffset(state, paint);
    state.setByString("U+1F1E6 U+1F1E8 U+1F1E6 U+1F1E8 | U+1F1E6");
    moveCursorToLeftCursorableOffset(state, paint);
    state.setByString("U+1F1E6 U+1F1E8 | U+1F1E6 U+1F1E8 U+1F1E6");
    moveCursorToLeftCursorableOffset(state, paint);
    state.setByString("| U+1F1E6 U+1F1E8 U+1F1E6 U+1F1E8 U+1F1E6");
    moveCursorToLeftCursorableOffset(state, paint);
    state.setByString("| U+1F1E6 U+1F1E8 U+1F1E6 U+1F1E8 U+1F1E6");
    moveCursorToLeftCursorableOffset(state, paint);
    // Zero width sequence
    final String zwjSequence = "U+1F468 U+200D U+2764 U+FE0F U+200D U+1F468";
    state.setByString("| " + zwjSequence + " " + zwjSequence + " " + zwjSequence);
    moveCursorToRightCursorableOffset(state, paint);
    state.assertEquals(zwjSequence + " | " + zwjSequence + " " + zwjSequence);
    moveCursorToRightCursorableOffset(state, paint);
    state.assertEquals(zwjSequence + " " + zwjSequence + " | " + zwjSequence);
    moveCursorToRightCursorableOffset(state, paint);
    state.assertEquals(zwjSequence + " " + zwjSequence + " " + zwjSequence + " |");
    moveCursorToRightCursorableOffset(state, paint);
    state.assertEquals(zwjSequence + " " + zwjSequence + " " + zwjSequence + " |");
    moveCursorToLeftCursorableOffset(state, paint);
    state.assertEquals(zwjSequence + " " + zwjSequence + " | " + zwjSequence);
    moveCursorToLeftCursorableOffset(state, paint);
    state.assertEquals(zwjSequence + " | " + zwjSequence + " " + zwjSequence);
    moveCursorToLeftCursorableOffset(state, paint);
    state.assertEquals("| " + zwjSequence + " " + zwjSequence + " " + zwjSequence);
    moveCursorToLeftCursorableOffset(state, paint);
    state.assertEquals("| " + zwjSequence + " " + zwjSequence + " " + zwjSequence);
    moveCursorToLeftCursorableOffset(state, paint);
    // Emoji modifiers
    // U+261D is WHITE UP POINTING INDEX, U+1F3FB is EMOJI MODIFIER FITZPATRICK TYPE-1-2.
    state.setByString("| U+261D U+1F3FB U+261D U+1F3FB U+261D U+1F3FB");
    moveCursorToRightCursorableOffset(state, paint);
    state.setByString("U+261D U+1F3FB | U+261D U+1F3FB U+261D U+1F3FB");
    moveCursorToRightCursorableOffset(state, paint);
    state.setByString("U+261D U+1F3FB U+261D U+1F3FB | U+261D U+1F3FB");
    moveCursorToRightCursorableOffset(state, paint);
    state.setByString("U+261D U+1F3FB U+261D U+1F3FB U+261D U+1F3FB |");
    moveCursorToRightCursorableOffset(state, paint);
    state.setByString("U+261D U+1F3FB U+261D U+1F3FB U+261D U+1F3FB |");
    moveCursorToLeftCursorableOffset(state, paint);
    state.setByString("U+261D U+1F3FB U+261D U+1F3FB | U+261D U+1F3FB");
    moveCursorToLeftCursorableOffset(state, paint);
    state.setByString("U+261D U+1F3FB | U+261D U+1F3FB U+261D U+1F3FB");
    moveCursorToLeftCursorableOffset(state, paint);
    state.setByString("| U+261D U+1F3FB U+261D U+1F3FB U+261D U+1F3FB");
    moveCursorToLeftCursorableOffset(state, paint);
    state.setByString("| U+261D U+1F3FB U+261D U+1F3FB U+261D U+1F3FB");
    moveCursorToLeftCursorableOffset(state, paint);
}

Example 94 with TextPaint

use of android.text.TextPaint in project JustAndroid by chinaltz.

the class AbGraphicUtil method getDrawRowStr.

/**
      * 解析成行.
      * @param text the text
      * @param maxWPix the max w pix
      * @param paint the paint
      * @return the draw row count
      */
public static List<String> getDrawRowStr(String text, int maxWPix, TextPaint paint) {
    String[] texts = null;
    if (text.indexOf("\n") != -1) {
        texts = text.split("\n");
    } else {
        texts = new String[1];
        texts[0] = text;
    }
    //共多少行
    List<String> mStrList = new ArrayList<String>();
    for (int i = 0; i < texts.length; i++) {
        String textLine = texts[i];
        //计算这个文本显示为几行
        while (true) {
            //可容纳的最后一个字的位置
            int endIndex = subStringLength(textLine, maxWPix, paint);
            if (endIndex <= 0) {
                mStrList.add(textLine);
            } else {
                if (endIndex == textLine.length() - 1) {
                    mStrList.add(textLine);
                } else {
                    mStrList.add(textLine.substring(0, endIndex + 1));
                }
            }
            //获取剩下的
            if (textLine.length() > endIndex + 1) {
                //还有剩下的
                textLine = textLine.substring(endIndex + 1);
            } else {
                break;
            }
        }
    }
    return mStrList;
}

Example 95 with TextPaint

use of android.text.TextPaint in project JustAndroid by chinaltz.

the class AbGraphicUtil method getDrawRowCount.

/**
      * 
      * 获取这段文本多少行.
      * @param text
      * @param maxWPix
      * @param paint
      * @return
      */
public static int getDrawRowCount(String text, int maxWPix, TextPaint paint) {
    String[] texts = null;
    if (text.indexOf("\n") != -1) {
        texts = text.split("\n");
    } else {
        texts = new String[1];
        texts[0] = text;
    }
    //共多少行
    List<String> mStrList = new ArrayList<String>();
    for (int i = 0; i < texts.length; i++) {
        String textLine = texts[i];
        //计算这个文本显示为几行
        while (true) {
            //可容纳的最后一个字的位置
            int endIndex = subStringLength(textLine, maxWPix, paint);
            if (endIndex <= 0) {
                mStrList.add(textLine);
            } else {
                if (endIndex == textLine.length() - 1) {
                    mStrList.add(textLine);
                } else {
                    mStrList.add(textLine.substring(0, endIndex + 1));
                }
            }
            //获取剩下的
            if (textLine.length() > endIndex + 1) {
                //还有剩下的
                textLine = textLine.substring(endIndex + 1);
            } else {
                break;
            }
        }
    }
    return mStrList.size();
}