diff options
Diffstat (limited to 'awt/java/awt/Font.java')
| -rw-r--r-- | awt/java/awt/Font.java | 1541 |
1 files changed, 0 insertions, 1541 deletions
diff --git a/awt/java/awt/Font.java b/awt/java/awt/Font.java deleted file mode 100644 index 4ed9343..0000000 --- a/awt/java/awt/Font.java +++ /dev/null @@ -1,1541 +0,0 @@ -/* - * Licensed to the Apache Software Foundation (ASF) under one or more - * contributor license agreements. See the NOTICE file distributed with - * this work for additional information regarding copyright ownership. - * The ASF licenses this file to You 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 java.awt; - -import com.android.internal.awt.AndroidGraphics2D; - -import java.awt.font.FontRenderContext; -import java.awt.font.GlyphVector; -import java.awt.font.LineMetrics; -import java.awt.font.TextAttribute; -import java.awt.font.TransformAttribute; -import java.awt.geom.AffineTransform; -import java.awt.geom.Rectangle2D; -import java.io.File; -import java.io.FileInputStream; -import java.io.BufferedInputStream; -import java.io.FileOutputStream; -import java.io.IOException; -import java.io.InputStream; -import java.io.Serializable; -import java.text.CharacterIterator; -import java.text.AttributedCharacterIterator.Attribute; -import java.util.Hashtable; -import java.util.Locale; -import java.util.Map; -import java.util.StringTokenizer; - -import org.apache.harmony.awt.gl.font.AndroidGlyphVector; -import org.apache.harmony.awt.gl.font.CommonGlyphVector; -import org.apache.harmony.awt.gl.font.FontPeerImpl; -import org.apache.harmony.awt.gl.font.FontMetricsImpl; -import org.apache.harmony.awt.gl.font.LineMetricsImpl; -import org.apache.harmony.awt.internal.nls.Messages; -import org.apache.harmony.luni.util.NotImplementedException; -import org.apache.harmony.misc.HashCode; - -/** - * The Font class represents fonts for rendering text. This class allow to map - * characters to glyphs. - * <p> - * A glyph is a shape used to render a character or a sequence of characters. - * For example one character of Latin writing system represented by one glyph, - * but in complex writing system such as South and South-East Asian there is - * more complicated correspondence between characters and glyphs. - * <p> - * The Font object is identified by two types of names. The logical font name is - * the name that is used to construct the font. The font name is the name of a - * particular font face (for example, Arial Bold). The family name is the font's - * family name that specifies the typographic design across several faces (for - * example, Arial). In all the Font is identified by three attributes: the - * family name, the style (such as bold or italic), and the size. - * - * @since Android 1.0 - */ -public class Font implements Serializable { - - /** - * The Constant serialVersionUID. - */ - private static final long serialVersionUID = -4206021311591459213L; - - // Identity Transform attribute - /** - * The Constant IDENTITY_TRANSFORM. - */ - private static final TransformAttribute IDENTITY_TRANSFORM = new TransformAttribute( - new AffineTransform()); - - /** - * The Constant PLAIN indicates font's plain style. - */ - public static final int PLAIN = 0; - - /** - * The Constant BOLD indicates font's bold style. - */ - public static final int BOLD = 1; - - /** - * The Constant ITALIC indicates font's italic style. - */ - public static final int ITALIC = 2; - - /** - * The Constant ROMAN_BASELINE indicated roman baseline. - */ - public static final int ROMAN_BASELINE = 0; - - /** - * The Constant CENTER_BASELINE indicates center baseline. - */ - public static final int CENTER_BASELINE = 1; - - /** - * The Constant HANGING_BASELINE indicates hanging baseline. - */ - public static final int HANGING_BASELINE = 2; - - /** - * The Constant TRUETYPE_FONT indicates a font resource of type TRUETYPE. - */ - public static final int TRUETYPE_FONT = 0; - - /** - * The Constant TYPE1_FONT indicates a font resource of type TYPE1. - */ - public static final int TYPE1_FONT = 1; - - /** - * The Constant LAYOUT_LEFT_TO_RIGHT indicates that text is left to right. - */ - public static final int LAYOUT_LEFT_TO_RIGHT = 0; - - /** - * The Constant LAYOUT_RIGHT_TO_LEFT indicates that text is right to left. - */ - public static final int LAYOUT_RIGHT_TO_LEFT = 1; - - /** - * The Constant LAYOUT_NO_START_CONTEXT indicates that the text in the char - * array before the indicated start should not be examined. - */ - public static final int LAYOUT_NO_START_CONTEXT = 2; - - /** - * The Constant LAYOUT_NO_LIMIT_CONTEXT indicates that text in the char - * array after the indicated limit should not be examined. - */ - public static final int LAYOUT_NO_LIMIT_CONTEXT = 4; - - /** - * The Constant DEFAULT_FONT. - */ - static final Font DEFAULT_FONT = new Font("Dialog", Font.PLAIN, 12); //$NON-NLS-1$ - - /** - * The name of the Font. - */ - protected String name; - - /** - * The style of the Font. - */ - protected int style; - - /** - * The size of the Font. - */ - protected int size; - - /** - * The point size of the Font. - */ - protected float pointSize; - - // Flag if the Font object transformed - /** - * The transformed. - */ - private boolean transformed; - - // Set of font attributes - /** - * The requested attributes. - */ - private Hashtable<Attribute, Object> fRequestedAttributes; - - // font peer object corresponding to this Font - /** - * The font peer. - */ - private transient FontPeerImpl fontPeer; - - // number of glyphs in this Font - /** - * The num glyphs. - */ - private transient int numGlyphs = -1; - - // code for missing glyph for this Font - /** - * The missing glyph code. - */ - private transient int missingGlyphCode = -1; - - /** - * Writes object to ObjectOutputStream. - * - * @param out - * ObjectOutputStream. - * @throws IOException - * Signals that an I/O exception has occurred. - */ - private void writeObject(java.io.ObjectOutputStream out) throws IOException { - out.defaultWriteObject(); - } - - /** - * Reads object from ObjectInputStream object and set native platform - * dependent fields to default values. - * - * @param in - * ObjectInputStream object. - * @throws IOException - * Signals that an I/O exception has occurred. - * @throws ClassNotFoundException - * the class not found exception. - */ - private void readObject(java.io.ObjectInputStream in) throws IOException, - ClassNotFoundException { - in.defaultReadObject(); - - numGlyphs = -1; - missingGlyphCode = -1; - - } - - /** - * Instantiates a new Font with the specified attributes. The Font will be - * created with default attributes if the attribute's parameter is null. - * - * @param attributes - * the attributes to be assigned to the new Font, or null. - */ - public Font(Map<? extends Attribute, ?> attributes) { - Object currAttr; - - // Default values are taken from the documentation of the Font class. - // See Font constructor, decode and getFont sections. - - this.name = "default"; //$NON-NLS-1$ - this.size = 12; - this.pointSize = 12; - this.style = Font.PLAIN; - - if (attributes != null) { - - fRequestedAttributes = new Hashtable<Attribute, Object>(attributes); - - currAttr = attributes.get(TextAttribute.SIZE); - if (currAttr != null) { - this.pointSize = ((Float)currAttr).floatValue(); - this.size = (int)Math.ceil(this.pointSize); - } - - currAttr = attributes.get(TextAttribute.POSTURE); - if (currAttr != null && currAttr.equals(TextAttribute.POSTURE_OBLIQUE)) { - this.style |= Font.ITALIC; - } - - currAttr = attributes.get(TextAttribute.WEIGHT); - if ((currAttr != null) - && (((Float)currAttr).floatValue() >= (TextAttribute.WEIGHT_BOLD).floatValue())) { - this.style |= Font.BOLD; - } - - currAttr = attributes.get(TextAttribute.FAMILY); - if (currAttr != null) { - this.name = (String)currAttr; - } - - currAttr = attributes.get(TextAttribute.TRANSFORM); - if (currAttr != null) { - if (currAttr instanceof TransformAttribute) { - this.transformed = !((TransformAttribute)currAttr).getTransform().isIdentity(); - } else if (currAttr instanceof AffineTransform) { - this.transformed = !((AffineTransform)currAttr).isIdentity(); - } - } - - } else { - fRequestedAttributes = new Hashtable<Attribute, Object>(5); - fRequestedAttributes.put(TextAttribute.TRANSFORM, IDENTITY_TRANSFORM); - - this.transformed = false; - - fRequestedAttributes.put(TextAttribute.FAMILY, name); - - fRequestedAttributes.put(TextAttribute.SIZE, new Float(this.size)); - - if ((this.style & Font.BOLD) != 0) { - fRequestedAttributes.put(TextAttribute.WEIGHT, TextAttribute.WEIGHT_BOLD); - } else { - fRequestedAttributes.put(TextAttribute.WEIGHT, TextAttribute.WEIGHT_REGULAR); - } - if ((this.style & Font.ITALIC) != 0) { - fRequestedAttributes.put(TextAttribute.POSTURE, TextAttribute.POSTURE_OBLIQUE); - } else { - fRequestedAttributes.put(TextAttribute.POSTURE, TextAttribute.POSTURE_REGULAR); - } - - } - } - - /** - * Instantiates a new Font with the specified name, style and size. - * - * @param name - * the name of font. - * @param style - * the style of font. - * @param size - * the size of font. - */ - public Font(String name, int style, int size) { - - this.name = (name != null) ? name : "Default"; //$NON-NLS-1$ - this.size = (size >= 0) ? size : 0; - this.style = (style & ~0x03) == 0 ? style : Font.PLAIN; - this.pointSize = this.size; - - fRequestedAttributes = new Hashtable<Attribute, Object>(5); - - fRequestedAttributes.put(TextAttribute.TRANSFORM, IDENTITY_TRANSFORM); - - this.transformed = false; - - fRequestedAttributes.put(TextAttribute.FAMILY, this.name); - fRequestedAttributes.put(TextAttribute.SIZE, new Float(this.size)); - - if ((this.style & Font.BOLD) != 0) { - fRequestedAttributes.put(TextAttribute.WEIGHT, TextAttribute.WEIGHT_BOLD); - } else { - fRequestedAttributes.put(TextAttribute.WEIGHT, TextAttribute.WEIGHT_REGULAR); - } - if ((this.style & Font.ITALIC) != 0) { - fRequestedAttributes.put(TextAttribute.POSTURE, TextAttribute.POSTURE_OBLIQUE); - } else { - fRequestedAttributes.put(TextAttribute.POSTURE, TextAttribute.POSTURE_REGULAR); - } - } - - /** - * Returns true if this Font has a glyph for the specified character. - * - * @param c - * the character. - * @return true if this Font has a glyph for the specified character, false - * otherwise. - */ - public boolean canDisplay(char c) { - FontPeerImpl peer = (FontPeerImpl)this.getPeer(); - return peer.canDisplay(c); - } - - /** - * Returns true if the Font can display the characters of the the specified - * text from the specified start position to the specified limit position. - * - * @param text - * the text. - * @param start - * the start offset (in the character array). - * @param limit - * the limit offset (in the character array). - * @return the a character's position in the text that this Font can not - * display, or -1 if this Font can display all characters in this - * text. - */ - public int canDisplayUpTo(char[] text, int start, int limit) { - int st = start; - int result; - while ((st < limit) && canDisplay(text[st])) { - st++; - } - - if (st == limit) { - result = -1; - } else { - result = st; - } - - return result; - } - - /** - * Returns true if the Font can display the characters of the the specified - * CharacterIterator from the specified start position and the specified - * limit position. - * - * @param iter - * the CharacterIterator. - * @param start - * the start offset. - * @param limit - * the limit offset. - * @return the a character's position in the CharacterIterator that this - * Font can not display, or -1 if this Font can display all - * characters in this text. - */ - public int canDisplayUpTo(CharacterIterator iter, int start, int limit) { - int st = start; - char c = iter.setIndex(start); - int result; - - while ((st < limit) && (canDisplay(c))) { - st++; - c = iter.next(); - } - if (st == limit) { - result = -1; - } else { - result = st; - } - - return result; - } - - /** - * Returns true if this Font can display a specified String. - * - * @param str - * the String. - * @return the a character's position in the String that this Font can not - * display, or -1 if this Font can display all characters in this - * text. - */ - public int canDisplayUpTo(String str) { - char[] chars = str.toCharArray(); - return canDisplayUpTo(chars, 0, chars.length); - } - - /** - * Creates a GlyphVector of associating characters to glyphs based on the - * Unicode map of this Font. - * - * @param frc - * the FontRenderContext. - * @param chars - * the characters array. - * @return the GlyphVector of associating characters to glyphs based on the - * Unicode map of this Font. - */ - public GlyphVector createGlyphVector(FontRenderContext frc, char[] chars) { - return new AndroidGlyphVector(chars, frc, this, 0); - } - - /** - * Creates a GlyphVector of associating characters contained in the - * specified CharacterIterator to glyphs based on the Unicode map of this - * Font. - * - * @param frc - * the FontRenderContext. - * @param iter - * the CharacterIterator. - * @return the GlyphVector of associating characters contained in the - * specified CharacterIterator to glyphs based on the Unicode map of - * this Font. - */ - public GlyphVector createGlyphVector(FontRenderContext frc, CharacterIterator iter) { - throw new RuntimeException("Not implemented!"); //$NON-NLS-1$ - } - - /** - * Creates a GlyphVector of associating characters to glyphs based on the - * Unicode map of this Font. - * - * @param frc - * the FontRenderContext. - * @param glyphCodes - * the specified integer array of glyph codes. - * @return the GlyphVector of associating characters to glyphs based on the - * Unicode map of this Font. - * @throws NotImplementedException - * if this method is not implemented by a subclass. - */ - public GlyphVector createGlyphVector(FontRenderContext frc, int[] glyphCodes) - throws org.apache.harmony.luni.util.NotImplementedException { - throw new RuntimeException("Not implemented!"); //$NON-NLS-1$ - } - - /** - * Creates a GlyphVector of associating characters to glyphs based on the - * Unicode map of this Font. - * - * @param frc - * the FontRenderContext. - * @param str - * the specified String. - * @return the GlyphVector of associating characters to glyphs based on the - * Unicode map of this Font. - */ - public GlyphVector createGlyphVector(FontRenderContext frc, String str) { - return new AndroidGlyphVector(str.toCharArray(), frc, this, 0); - - } - - /** - * Returns the font style constant value corresponding to one of the font - * style names ("BOLD", "ITALIC", "BOLDITALIC"). This method returns - * Font.PLAIN if the argument is not one of the predefined style names. - * - * @param fontStyleName - * font style name. - * @return font style constant value corresponding to the font style name - * specified. - */ - private static int getFontStyle(String fontStyleName) { - int result = Font.PLAIN; - - if (fontStyleName.toUpperCase().equals("BOLDITALIC")) { //$NON-NLS-1$ - result = Font.BOLD | Font.ITALIC; - } else if (fontStyleName.toUpperCase().equals("BOLD")) { //$NON-NLS-1$ - result = Font.BOLD; - } else if (fontStyleName.toUpperCase().equals("ITALIC")) { //$NON-NLS-1$ - result = Font.ITALIC; - } - - return result; - } - - /** - * Decodes the specified string which described the Font. The string should - * have the following format: fontname-style-pointsize. The style can be - * PLAIN, BOLD, BOLDITALIC, or ITALIC. - * - * @param str - * the string which describes the font. - * @return the Font from the specified string. - */ - public static Font decode(String str) { - // XXX: Documentation doesn't describe all cases, e.g. fonts face names - // with - // symbols that are suggested as delimiters in the documentation. - // In this decode implementation only ***-***-*** format is used with - // '-' - // as the delimiter to avoid unexpected parse results of font face names - // with spaces. - - if (str == null) { - return DEFAULT_FONT; - } - - StringTokenizer strTokens; - String delim = "-"; //$NON-NLS-1$ - String substr; - - int fontSize = DEFAULT_FONT.size; - int fontStyle = DEFAULT_FONT.style; - String fontName = DEFAULT_FONT.name; - - strTokens = new StringTokenizer(str.trim(), delim); - - // Font Name - if (strTokens.hasMoreTokens()) { - fontName = strTokens.nextToken(); // first token is the font name - } - - // Font Style or Size (if the style is undefined) - if (strTokens.hasMoreTokens()) { - substr = strTokens.nextToken(); - - try { - // if second token is the font size - fontSize = Integer.parseInt(substr); - } catch (NumberFormatException e) { - // then second token is the font style - fontStyle = getFontStyle(substr); - } - - } - - // Font Size - if (strTokens.hasMoreTokens()) { - try { - fontSize = Integer.parseInt(strTokens.nextToken()); - } catch (NumberFormatException e) { - } - } - - return new Font(fontName, fontStyle, fontSize); - } - - /** - * Performs the specified affine transform to the Font and returns a new - * Font. - * - * @param trans - * the AffineTransform. - * @return the Font object. - * @throws IllegalArgumentException - * if affine transform parameter is null. - */ - @SuppressWarnings("unchecked") - public Font deriveFont(AffineTransform trans) { - - if (trans == null) { - // awt.94=transform can not be null - throw new IllegalArgumentException(Messages.getString("awt.94")); //$NON-NLS-1$ - } - - Hashtable<Attribute, Object> derivefRequestedAttributes = (Hashtable<Attribute, Object>)fRequestedAttributes - .clone(); - - derivefRequestedAttributes.put(TextAttribute.TRANSFORM, new TransformAttribute(trans)); - - return new Font(derivefRequestedAttributes); - - } - - /** - * Returns a new Font that is a copy of the current Font modified so that - * the size is the specified size. - * - * @param size - * the size of font. - * @return the Font object. - */ - @SuppressWarnings("unchecked") - public Font deriveFont(float size) { - Hashtable<Attribute, Object> derivefRequestedAttributes = (Hashtable<Attribute, Object>)fRequestedAttributes - .clone(); - derivefRequestedAttributes.put(TextAttribute.SIZE, new Float(size)); - return new Font(derivefRequestedAttributes); - } - - /** - * Returns a new Font that is a copy of the current Font modified so that - * the style is the specified style. - * - * @param style - * the style of font. - * @return the Font object. - */ - @SuppressWarnings("unchecked") - public Font deriveFont(int style) { - Hashtable<Attribute, Object> derivefRequestedAttributes = (Hashtable<Attribute, Object>)fRequestedAttributes - .clone(); - - if ((style & Font.BOLD) != 0) { - derivefRequestedAttributes.put(TextAttribute.WEIGHT, TextAttribute.WEIGHT_BOLD); - } else if (derivefRequestedAttributes.get(TextAttribute.WEIGHT) != null) { - derivefRequestedAttributes.remove(TextAttribute.WEIGHT); - } - - if ((style & Font.ITALIC) != 0) { - derivefRequestedAttributes.put(TextAttribute.POSTURE, TextAttribute.POSTURE_OBLIQUE); - } else if (derivefRequestedAttributes.get(TextAttribute.POSTURE) != null) { - derivefRequestedAttributes.remove(TextAttribute.POSTURE); - } - - return new Font(derivefRequestedAttributes); - } - - /** - * Returns a new Font that is a copy of the current Font modified to match - * the specified style and with the specified affine transform applied to - * its glyphs. - * - * @param style - * the style of font. - * @param trans - * the AffineTransform. - * @return the Font object. - */ - @SuppressWarnings("unchecked") - public Font deriveFont(int style, AffineTransform trans) { - - if (trans == null) { - // awt.94=transform can not be null - throw new IllegalArgumentException(Messages.getString("awt.94")); //$NON-NLS-1$ - } - Hashtable<Attribute, Object> derivefRequestedAttributes = (Hashtable<Attribute, Object>)fRequestedAttributes - .clone(); - - if ((style & BOLD) != 0) { - derivefRequestedAttributes.put(TextAttribute.WEIGHT, TextAttribute.WEIGHT_BOLD); - } else if (derivefRequestedAttributes.get(TextAttribute.WEIGHT) != null) { - derivefRequestedAttributes.remove(TextAttribute.WEIGHT); - } - - if ((style & ITALIC) != 0) { - derivefRequestedAttributes.put(TextAttribute.POSTURE, TextAttribute.POSTURE_OBLIQUE); - } else if (derivefRequestedAttributes.get(TextAttribute.POSTURE) != null) { - derivefRequestedAttributes.remove(TextAttribute.POSTURE); - } - derivefRequestedAttributes.put(TextAttribute.TRANSFORM, new TransformAttribute(trans)); - - return new Font(derivefRequestedAttributes); - } - - /** - * Returns a new Font that is a copy of the current Font modified so that - * the size and style are the specified size and style. - * - * @param style - * the style of font. - * @param size - * the size of font. - * @return the Font object. - */ - @SuppressWarnings("unchecked") - public Font deriveFont(int style, float size) { - Hashtable<Attribute, Object> derivefRequestedAttributes = (Hashtable<Attribute, Object>)fRequestedAttributes - .clone(); - - if ((style & BOLD) != 0) { - derivefRequestedAttributes.put(TextAttribute.WEIGHT, TextAttribute.WEIGHT_BOLD); - } else if (derivefRequestedAttributes.get(TextAttribute.WEIGHT) != null) { - derivefRequestedAttributes.remove(TextAttribute.WEIGHT); - } - - if ((style & ITALIC) != 0) { - derivefRequestedAttributes.put(TextAttribute.POSTURE, TextAttribute.POSTURE_OBLIQUE); - } else if (derivefRequestedAttributes.get(TextAttribute.POSTURE) != null) { - derivefRequestedAttributes.remove(TextAttribute.POSTURE); - } - - derivefRequestedAttributes.put(TextAttribute.SIZE, new Float(size)); - return new Font(derivefRequestedAttributes); - - } - - /** - * Returns a new Font object with a new set of font attributes. - * - * @param attributes - * the map of attributes. - * @return the Font. - */ - @SuppressWarnings("unchecked") - public Font deriveFont(Map<? extends Attribute, ?> attributes) { - Attribute[] avalAttributes = this.getAvailableAttributes(); - - Hashtable<Attribute, Object> derivefRequestedAttributes = (Hashtable<Attribute, Object>)fRequestedAttributes - .clone(); - Object currAttribute; - for (Attribute element : avalAttributes) { - currAttribute = attributes.get(element); - if (currAttribute != null) { - derivefRequestedAttributes.put(element, currAttribute); - } - } - return new Font(derivefRequestedAttributes); - } - - /** - * Compares the specified Object with the current Font. - * - * @param obj - * the Object to be compared. - * @return true, if the specified Object is an instance of Font with the - * same family, size, and style as this Font, false otherwise. - */ - @Override - public boolean equals(Object obj) { - if (obj == this) { - return true; - } - - if (obj != null) { - try { - Font font = (Font)obj; - - return ((this.style == font.style) && (this.size == font.size) - && this.name.equals(font.name) && (this.pointSize == font.pointSize) && (this - .getTransform()).equals(font.getTransform())); - } catch (ClassCastException e) { - } - } - - return false; - } - - /** - * Gets the map of font's attributes. - * - * @return the map of font's attributes. - */ - @SuppressWarnings("unchecked") - public Map<TextAttribute, ?> getAttributes() { - return (Map<TextAttribute, ?>)fRequestedAttributes.clone(); - } - - /** - * Gets the keys of all available attributes. - * - * @return the keys array of all available attributes. - */ - public Attribute[] getAvailableAttributes() { - Attribute[] attrs = { - TextAttribute.FAMILY, TextAttribute.POSTURE, TextAttribute.SIZE, - TextAttribute.TRANSFORM, TextAttribute.WEIGHT, TextAttribute.SUPERSCRIPT, - TextAttribute.WIDTH - }; - return attrs; - } - - /** - * Gets the baseline for this character. - * - * @param c - * the character. - * @return the baseline for this character. - */ - public byte getBaselineFor(char c) { - // TODO: implement using TT BASE table data - return 0; - } - - /** - * Gets the family name of the Font. - * - * @return the family name of the Font. - */ - public String getFamily() { - if (fRequestedAttributes != null) { - fRequestedAttributes.get(TextAttribute.FAMILY); - } - return null; - } - - /** - * Returns the family name of this Font associated with the specified - * locale. - * - * @param l - * the locale. - * @return the family name of this Font associated with the specified - * locale. - */ - public String getFamily(Locale l) { - if (l == null) { - // awt.01='{0}' parameter is null - throw new NullPointerException(Messages.getString("awt.01", "Locale")); //$NON-NLS-1$ //$NON-NLS-2$ - } - return getFamily(); - } - - /** - * Gets a Font with the specified attribute set. - * - * @param attributes - * the attributes to be assigned to the new Font. - * @return the Font. - */ - public static Font getFont(Map<? extends Attribute, ?> attributes) { - Font fnt = (Font)attributes.get(TextAttribute.FONT); - if (fnt != null) { - return fnt; - } - return new Font(attributes); - } - - /** - * Gets a Font object from the system properties list with the specified - * name or returns the specified Font if there is no such property. - * - * @param sp - * the specified property name. - * @param f - * the Font. - * @return the Font object from the system properties list with the - * specified name or the specified Font if there is no such - * property. - */ - public static Font getFont(String sp, Font f) { - String pr = System.getProperty(sp); - if (pr == null) { - return f; - } - return decode(pr); - } - - /** - * Gets a Font object from the system properties list with the specified - * name. - * - * @param sp - * the system property name. - * @return the Font, or null if there is no such property with the specified - * name. - */ - public static Font getFont(String sp) { - return getFont(sp, null); - } - - /** - * Gets the font name. - * - * @return the font name. - */ - public String getFontName() { - if (fRequestedAttributes != null) { - fRequestedAttributes.get(TextAttribute.FAMILY); - } - return null; - } - - /** - * Returns the font name associated with the specified locale. - * - * @param l - * the locale. - * @return the font name associated with the specified locale. - */ - public String getFontName(Locale l) { - return getFamily(); - } - - /** - * Returns a LineMetrics object created with the specified parameters. - * - * @param chars - * the chars array. - * @param start - * the start offset. - * @param end - * the end offset. - * @param frc - * the FontRenderContext. - * @return the LineMetrics for the specified parameters. - */ - public LineMetrics getLineMetrics(char[] chars, int start, int end, FontRenderContext frc) { - if (frc == null) { - // awt.00=FontRenderContext is null - throw new NullPointerException(Messages.getString("awt.00")); //$NON-NLS-1$ - } - - // FontMetrics fm = AndroidGraphics2D.getInstance().getFontMetrics(); - FontMetrics fm = new FontMetricsImpl(this); - float[] fmet = { - fm.getAscent(), fm.getDescent(), fm.getLeading() - }; - return new LineMetricsImpl(chars.length, fmet, null); - } - - /** - * Returns a LineMetrics object created with the specified parameters. - * - * @param iter - * the CharacterIterator. - * @param start - * the start offset. - * @param end - * the end offset. - * @param frc - * the FontRenderContext. - * @return the LineMetrics for the specified parameters. - */ - public LineMetrics getLineMetrics(CharacterIterator iter, int start, int end, - FontRenderContext frc) { - - if (frc == null) { - // awt.00=FontRenderContext is null - throw new NullPointerException(Messages.getString("awt.00")); //$NON-NLS-1$ - } - - String resultString; - int iterCount; - - iterCount = end - start; - if (iterCount < 0) { - resultString = ""; //$NON-NLS-1$ - } else { - char[] chars = new char[iterCount]; - int i = 0; - for (char c = iter.setIndex(start); c != CharacterIterator.DONE && (i < iterCount); c = iter - .next()) { - chars[i] = c; - i++; - } - resultString = new String(chars); - } - return this.getLineMetrics(resultString, frc); - } - - /** - * Returns a LineMetrics object created with the specified parameters. - * - * @param str - * the String. - * @param frc - * the FontRenderContext. - * @return the LineMetrics for the specified parameters. - */ - public LineMetrics getLineMetrics(String str, FontRenderContext frc) { - // FontMetrics fm = AndroidGraphics2D.getInstance().getFontMetrics(); - FontMetrics fm = new FontMetricsImpl(this); - float[] fmet = { - fm.getAscent(), fm.getDescent(), fm.getLeading() - }; - // Log.i("FONT FMET", fmet.toString()); - return new LineMetricsImpl(str.length(), fmet, null); - - } - - /** - * Returns a LineMetrics object created with the specified parameters. - * - * @param str - * the String. - * @param start - * the start offset. - * @param end - * the end offset. - * @param frc - * the FontRenderContext. - * @return the LineMetrics for the specified parameters. - */ - public LineMetrics getLineMetrics(String str, int start, int end, FontRenderContext frc) { - return this.getLineMetrics(str.substring(start, end), frc); - } - - /** - * Gets the logical bounds of the specified String in the specified - * FontRenderContext. The logical bounds contains the origin, ascent, - * advance, and height. - * - * @param ci - * the specified CharacterIterator. - * @param start - * the start offset. - * @param end - * the end offset. - * @param frc - * the FontRenderContext. - * @return a Rectangle2D object. - */ - public Rectangle2D getStringBounds(CharacterIterator ci, int start, int end, - FontRenderContext frc) { - int first = ci.getBeginIndex(); - int finish = ci.getEndIndex(); - char[] chars; - - if (start < first) { - // awt.95=Wrong start index: {0} - throw new IndexOutOfBoundsException(Messages.getString("awt.95", start)); //$NON-NLS-1$ - } - if (end > finish) { - // awt.96=Wrong finish index: {0} - throw new IndexOutOfBoundsException(Messages.getString("awt.96", end)); //$NON-NLS-1$ - } - if (start > end) { - // awt.97=Wrong range length: {0} - throw new IndexOutOfBoundsException(Messages.getString("awt.97", //$NON-NLS-1$ - (end - start))); - } - - if (frc == null) { - throw new NullPointerException(Messages.getString("awt.00")); //$NON-NLS-1$ - } - - chars = new char[end - start]; - - ci.setIndex(start); - for (int i = 0; i < chars.length; i++) { - chars[i] = ci.current(); - ci.next(); - } - - return this.getStringBounds(chars, 0, chars.length, frc); - - } - - /** - * Gets the logical bounds of the specified String in the specified - * FontRenderContext. The logical bounds contains the origin, ascent, - * advance, and height. - * - * @param str - * the specified String. - * @param frc - * the FontRenderContext. - * @return a Rectangle2D object. - */ - public Rectangle2D getStringBounds(String str, FontRenderContext frc) { - char[] chars = str.toCharArray(); - return this.getStringBounds(chars, 0, chars.length, frc); - - } - - /** - * Gets the logical bounds of the specified String in the specified - * FontRenderContext. The logical bounds contains the origin, ascent, - * advance, and height. - * - * @param str - * the specified String. - * @param start - * the start offset. - * @param end - * the end offset. - * @param frc - * the FontRenderContext. - * @return a Rectangle2D object. - */ - public Rectangle2D getStringBounds(String str, int start, int end, FontRenderContext frc) { - - return this.getStringBounds((str.substring(start, end)), frc); - } - - /** - * Gets the logical bounds of the specified String in the specified - * FontRenderContext. The logical bounds contains the origin, ascent, - * advance, and height. - * - * @param chars - * the specified character array. - * @param start - * the start offset. - * @param end - * the end offset. - * @param frc - * the FontRenderContext. - * @return a Rectangle2D object. - */ - public Rectangle2D getStringBounds(char[] chars, int start, int end, FontRenderContext frc) { - if (start < 0) { - // awt.95=Wrong start index: {0} - throw new IndexOutOfBoundsException(Messages.getString("awt.95", start)); //$NON-NLS-1$ - } - if (end > chars.length) { - // awt.96=Wrong finish index: {0} - throw new IndexOutOfBoundsException(Messages.getString("awt.96", end)); //$NON-NLS-1$ - } - if (start > end) { - // awt.97=Wrong range length: {0} - throw new IndexOutOfBoundsException(Messages.getString("awt.97", //$NON-NLS-1$ - (end - start))); - } - - if (frc == null) { - throw new NullPointerException(Messages.getString("awt.00")); //$NON-NLS-1$ - } - - FontPeerImpl peer = (FontPeerImpl)this.getPeer(); - - final int TRANSFORM_MASK = AffineTransform.TYPE_GENERAL_ROTATION - | AffineTransform.TYPE_GENERAL_TRANSFORM; - Rectangle2D bounds; - - AffineTransform transform = getTransform(); - - // XXX: for transforms where an angle between basis vectors is not 90 - // degrees Rectanlge2D class doesn't fit as Logical bounds. - if ((transform.getType() & TRANSFORM_MASK) == 0) { - int width = 0; - for (int i = start; i < end; i++) { - width += peer.charWidth(chars[i]); - } - // LineMetrics nlm = peer.getLineMetrics(); - - LineMetrics nlm = getLineMetrics(chars, start, end, frc); - - bounds = transform.createTransformedShape( - new Rectangle2D.Float(0, -nlm.getAscent(), width, nlm.getHeight())) - .getBounds2D(); - } else { - int len = end - start; - char[] subChars = new char[len]; - System.arraycopy(chars, start, subChars, 0, len); - bounds = createGlyphVector(frc, subChars).getLogicalBounds(); - } - return bounds; - } - - /** - * Gets the character's maximum bounds as defined in the specified - * FontRenderContext. - * - * @param frc - * the FontRenderContext. - * @return the character's maximum bounds. - */ - public Rectangle2D getMaxCharBounds(FontRenderContext frc) { - if (frc == null) { - // awt.00=FontRenderContext is null - throw new NullPointerException(Messages.getString("awt.00")); //$NON-NLS-1$ - } - - FontPeerImpl peer = (FontPeerImpl)this.getPeer(); - - Rectangle2D bounds = peer.getMaxCharBounds(frc); - AffineTransform transform = getTransform(); - // !! Documentation doesn't describe meaning of max char bounds - // for the fonts that have rotate transforms. For all transforms - // returned bounds are the bounds of transformed maxCharBounds - // Rectangle2D that corresponds to the font with identity transform. - // TODO: resolve this issue to return correct bounds - bounds = transform.createTransformedShape(bounds).getBounds2D(); - - return bounds; - } - - /** - * Returns a new GlyphVector object performing full layout of the text. - * - * @param frc - * the FontRenderContext. - * @param chars - * the character array to be layout. - * @param start - * the start offset of the text to use for the GlyphVector. - * @param count - * the count of characters to use for the GlyphVector. - * @param flags - * the flag indicating text direction: LAYOUT_RIGHT_TO_LEFT, - * LAYOUT_LEFT_TO_RIGHT. - * @return the GlyphVector. - */ - public GlyphVector layoutGlyphVector(FontRenderContext frc, char[] chars, int start, int count, - int flags) { - // TODO: implement method for bidirectional text. - // At the moment only LTR and RTL texts supported. - if (start < 0) { - // awt.95=Wrong start index: {0} - throw new ArrayIndexOutOfBoundsException(Messages.getString("awt.95", //$NON-NLS-1$ - start)); - } - - if (count < 0) { - // awt.98=Wrong count value, can not be negative: {0} - throw new ArrayIndexOutOfBoundsException(Messages.getString("awt.98", //$NON-NLS-1$ - count)); - } - - if (start + count > chars.length) { - // awt.99=Wrong [start + count] is out of range: {0} - throw new ArrayIndexOutOfBoundsException(Messages.getString("awt.99", //$NON-NLS-1$ - (start + count))); - } - - char[] out = new char[count]; - System.arraycopy(chars, start, out, 0, count); - - return new CommonGlyphVector(out, frc, this, flags); - } - - /** - * Returns the String representation of this Font. - * - * @return the String representation of this Font. - */ - @Override - public String toString() { - String stl = "plain"; //$NON-NLS-1$ - String result; - - if (this.isBold() && this.isItalic()) { - stl = "bolditalic"; //$NON-NLS-1$ - } - if (this.isBold() && !this.isItalic()) { - stl = "bold"; //$NON-NLS-1$ - } - - if (!this.isBold() && this.isItalic()) { - stl = "italic"; //$NON-NLS-1$ - } - - result = this.getClass().getName() + "[family=" + this.getFamily() + //$NON-NLS-1$ - ",name=" + this.name + //$NON-NLS-1$ - ",style=" + stl + //$NON-NLS-1$ - ",size=" + this.size + "]"; //$NON-NLS-1$ //$NON-NLS-2$ - return result; - } - - /** - * Gets the postscript name of this Font. - * - * @return the postscript name of this Font. - */ - public String getPSName() { - FontPeerImpl peer = (FontPeerImpl)this.getPeer(); - return peer.getPSName(); - } - - /** - * Gets the logical name of this Font. - * - * @return the logical name of this Font. - */ - public String getName() { - return (this.name); - } - - /** - * Gets the peer of this Font. - * - * @return the peer of this Font. - * @deprecated Font rendering is platform independent now. - */ - @Deprecated - public java.awt.peer.FontPeer getPeer() { - if (fontPeer == null) { - fontPeer = (FontPeerImpl)Toolkit.getDefaultToolkit().getGraphicsFactory().getFontPeer( - this); - } - return fontPeer; - - } - - /** - * Gets the transform acting on this Font (from the Font's attributes). - * - * @return the transformation of this Font. - */ - public AffineTransform getTransform() { - Object transform = fRequestedAttributes.get(TextAttribute.TRANSFORM); - - if (transform != null) { - if (transform instanceof TransformAttribute) { - return ((TransformAttribute)transform).getTransform(); - } - if (transform instanceof AffineTransform) { - return new AffineTransform((AffineTransform)transform); - } - } else { - transform = new AffineTransform(); - } - return (AffineTransform)transform; - - } - - /** - * Checks if this font is transformed or not. - * - * @return true, if this font is transformed, false otherwise. - */ - public boolean isTransformed() { - return this.transformed; - } - - /** - * Checks if this font has plain style or not. - * - * @return true, if this font has plain style, false otherwise. - */ - public boolean isPlain() { - return (this.style == PLAIN); - } - - /** - * Checks if this font has italic style or not. - * - * @return true, if this font has italic style, false otherwise. - */ - public boolean isItalic() { - return (this.style & ITALIC) != 0; - } - - /** - * Checks if this font has bold style or not. - * - * @return true, if this font has bold style, false otherwise. - */ - public boolean isBold() { - return (this.style & BOLD) != 0; - } - - /** - * Returns true if this Font has uniform line metrics. - * - * @return true if this Font has uniform line metrics, false otherwise. - */ - public boolean hasUniformLineMetrics() { - FontPeerImpl peer = (FontPeerImpl)this.getPeer(); - return peer.hasUniformLineMetrics(); - } - - /** - * Returns hash code of this Font object. - * - * @return the hash code of this Font object. - */ - @Override - public int hashCode() { - HashCode hash = new HashCode(); - - hash.append(this.name); - hash.append(this.style); - hash.append(this.size); - - return hash.hashCode(); - } - - /** - * Gets the style of this Font. - * - * @return the style of this Font. - */ - public int getStyle() { - return this.style; - } - - /** - * Gets the size of this Font. - * - * @return the size of this Font. - */ - public int getSize() { - return this.size; - } - - /** - * Gets the number of glyphs for this Font. - * - * @return the number of glyphs for this Font. - */ - public int getNumGlyphs() { - if (numGlyphs == -1) { - FontPeerImpl peer = (FontPeerImpl)this.getPeer(); - this.numGlyphs = peer.getNumGlyphs(); - } - return this.numGlyphs; - } - - /** - * Gets the glyphCode which is used as default glyph when this Font does not - * have a glyph for a specified Unicode. - * - * @return the missing glyph code. - */ - public int getMissingGlyphCode() { - if (missingGlyphCode == -1) { - FontPeerImpl peer = (FontPeerImpl)this.getPeer(); - this.missingGlyphCode = peer.getMissingGlyphCode(); - } - return this.missingGlyphCode; - } - - /** - * Gets the float value of font's size. - * - * @return the float value of font's size. - */ - public float getSize2D() { - return this.pointSize; - } - - /** - * Gets the italic angle of this Font. - * - * @return the italic angle of this Font. - */ - public float getItalicAngle() { - FontPeerImpl peer = (FontPeerImpl)this.getPeer(); - return peer.getItalicAngle(); - } - - /** - * Creates the font with the specified font format and font file. - * - * @param fontFormat - * the font format. - * @param fontFile - * the file object represented the input data for the font. - * @return the Font. - * @throws FontFormatException - * is thrown if fontFile does not contain the required font - * tables for the specified format. - * @throws IOException - * signals that an I/O exception has occurred. - */ - public static Font createFont(int fontFormat, File fontFile) throws FontFormatException, - IOException { - // ???AWT not supported - InputStream is = new FileInputStream(fontFile); - try { - return createFont(fontFormat, is); - } finally { - is.close(); - } - } - - /** - * Creates the font with the specified font format and input stream. - * - * @param fontFormat - * the font format. - * @param fontStream - * the input stream represented input data for the font. - * @return the Font. - * @throws FontFormatException - * is thrown if fontFile does not contain the required font - * tables for the specified format. - * @throws IOException - * signals that an I/O exception has occurred. - */ - public static Font createFont(int fontFormat, InputStream fontStream) - throws FontFormatException, IOException { - - // ???AWT not supported - - BufferedInputStream buffStream; - int bRead = 0; - int size = 8192; - // memory page size, for the faster reading - byte buf[] = new byte[size]; - - if (fontFormat != TRUETYPE_FONT) { // awt.9A=Unsupported font format - throw new IllegalArgumentException(Messages.getString("awt.9A")); //$NON-NLS-1$ - } - - /* Get font file in system-specific directory */ - - File fontFile = Toolkit.getDefaultToolkit().getGraphicsFactory().getFontManager() - .getTempFontFile(); - - // BEGIN android-modified - buffStream = new BufferedInputStream(fontStream, 8192); - // END android-modified - FileOutputStream fOutStream = new FileOutputStream(fontFile); - - bRead = buffStream.read(buf, 0, size); - - while (bRead != -1) { - fOutStream.write(buf, 0, bRead); - bRead = buffStream.read(buf, 0, size); - } - - buffStream.close(); - fOutStream.close(); - - Font font = null; - - font = Toolkit.getDefaultToolkit().getGraphicsFactory().embedFont( - fontFile.getAbsolutePath()); - if (font == null) { // awt.9B=Can't create font - bad font data - throw new FontFormatException(Messages.getString("awt.9B")); //$NON-NLS-1$ - } - return font; - } - -} |