diff options
Diffstat (limited to 'ide_common/src/com/android/ide/common/resources/configuration/ScreenWidthQualifier.java')
-rw-r--r-- | ide_common/src/com/android/ide/common/resources/configuration/ScreenWidthQualifier.java | 169 |
1 files changed, 169 insertions, 0 deletions
diff --git a/ide_common/src/com/android/ide/common/resources/configuration/ScreenWidthQualifier.java b/ide_common/src/com/android/ide/common/resources/configuration/ScreenWidthQualifier.java new file mode 100644 index 0000000..8748864 --- /dev/null +++ b/ide_common/src/com/android/ide/common/resources/configuration/ScreenWidthQualifier.java @@ -0,0 +1,169 @@ +/* + * Copyright (C) 2011 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 com.android.ide.common.resources.configuration; + +import java.util.regex.Matcher; +import java.util.regex.Pattern; + +/** + * Resource Qualifier for Screen Pixel Density. + */ +public final class ScreenWidthQualifier extends ResourceQualifier { + /** Default screen size value. This means the property is not set */ + final static int DEFAULT_SIZE = -1; + + private final static Pattern sParsePattern = Pattern.compile("^w(\\d+)dp$"); //$NON-NLS-1$ + private final static String sPrintPattern = "w%1$ddp"; //$NON-NLS-1$ + + public static final String NAME = "Screen Width"; + + private int mValue = DEFAULT_SIZE; + + public ScreenWidthQualifier() { + // pass + } + + public ScreenWidthQualifier(int value) { + mValue = value; + } + + public int getValue() { + return mValue; + } + + @Override + public String getName() { + return NAME; + } + + @Override + public String getShortName() { + return NAME; + } + + @Override + public boolean hasFakeValue() { + return false; + } + + @Override + public boolean isValid() { + return mValue != DEFAULT_SIZE; + } + + @Override + public boolean checkAndSet(String value, FolderConfiguration config) { + Matcher m = sParsePattern.matcher(value); + if (m.matches()) { + String v = m.group(1); + + ScreenWidthQualifier qualifier = getQualifier(v); + if (qualifier != null) { + config.setScreenWidthQualifier(qualifier); + return true; + } + } + + return false; + } + + public static ScreenWidthQualifier getQualifier(String value) { + try { + int dp = Integer.parseInt(value); + + ScreenWidthQualifier qualifier = new ScreenWidthQualifier(); + qualifier.mValue = dp; + return qualifier; + + } catch (NumberFormatException e) { + } + + return null; + } + + @Override + public boolean isMatchFor(ResourceQualifier qualifier) { + // this is the match only of the current dp value is lower or equal to the + if (qualifier instanceof ScreenWidthQualifier) { + return mValue <= ((ScreenWidthQualifier) qualifier).mValue; + } + + return false; + } + + @Override + public boolean isBetterMatchThan(ResourceQualifier compareTo, ResourceQualifier reference) { + if (compareTo == null) { + return true; + } + + ScreenWidthQualifier compareQ = (ScreenWidthQualifier)compareTo; + ScreenWidthQualifier referenceQ = (ScreenWidthQualifier)reference; + + if (compareQ.mValue == referenceQ.mValue) { + // what we have is already the best possible match (exact match) + return false; + } else if (mValue == referenceQ.mValue) { + // got new exact value, this is the best! + return true; + } else { + // get the qualifier that has the width that is the closest to the reference, but not + // above. (which is guaranteed when this is called as isMatchFor is called first. + return mValue > compareQ.mValue; + } + } + + @Override + public String getFolderSegment() { + return String.format(sPrintPattern, mValue); + } + + @Override + public String getShortDisplayValue() { + if (isValid()) { + return getFolderSegment(); + } + + return ""; //$NON-NLS-1$ + } + + @Override + public String getLongDisplayValue() { + if (isValid()) { + return getFolderSegment(); + } + + return ""; //$NON-NLS-1$ + } + + @Override + public int hashCode() { + return mValue; + } + + @Override + public boolean equals(Object obj) { + if (this == obj) + return true; + if (getClass() != obj.getClass()) + return false; + ScreenWidthQualifier other = (ScreenWidthQualifier) obj; + if (mValue != other.mValue) + return false; + return true; + } +} |