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Diffstat (limited to 'bundles/org.eclipse.swt/Eclipse SWT/cocoa/org/eclipse/swt/graphics/Font.java')
-rwxr-xr-xbundles/org.eclipse.swt/Eclipse SWT/cocoa/org/eclipse/swt/graphics/Font.java370
1 files changed, 370 insertions, 0 deletions
diff --git a/bundles/org.eclipse.swt/Eclipse SWT/cocoa/org/eclipse/swt/graphics/Font.java b/bundles/org.eclipse.swt/Eclipse SWT/cocoa/org/eclipse/swt/graphics/Font.java
new file mode 100755
index 0000000000..b30ab417f2
--- /dev/null
+++ b/bundles/org.eclipse.swt/Eclipse SWT/cocoa/org/eclipse/swt/graphics/Font.java
@@ -0,0 +1,370 @@
+/*******************************************************************************
+ * Copyright (c) 2000, 2009 IBM Corporation and others.
+ * All rights reserved. This program and the accompanying materials
+ * are made available under the terms of the Eclipse Public License v1.0
+ * which accompanies this distribution, and is available at
+ * http://www.eclipse.org/legal/epl-v10.html
+ *
+ * Contributors:
+ * IBM Corporation - initial API and implementation
+ *******************************************************************************/
+package org.eclipse.swt.graphics;
+
+
+import org.eclipse.swt.internal.cocoa.*;
+import org.eclipse.swt.*;
+
+/**
+ * Instances of this class manage operating system resources that
+ * define how text looks when it is displayed. Fonts may be constructed
+ * by providing a device and either name, size and style information
+ * or a <code>FontData</code> object which encapsulates this data.
+ * <p>
+ * Application code must explicitly invoke the <code>Font.dispose()</code>
+ * method to release the operating system resources managed by each instance
+ * when those instances are no longer required.
+ * </p>
+ *
+ * @see FontData
+ * @see <a href="http://www.eclipse.org/swt/snippets/#font">Font snippets</a>
+ * @see <a href="http://www.eclipse.org/swt/examples.php">SWT Examples: GraphicsExample, PaintExample</a>
+ * @see <a href="http://www.eclipse.org/swt/">Sample code and further information</a>
+ */
+public final class Font extends Resource {
+
+ /**
+ * the handle to the OS font resource
+ * (Warning: This field is platform dependent)
+ * <p>
+ * <b>IMPORTANT:</b> This field is <em>not</em> part of the SWT
+ * public API. It is marked public only so that it can be shared
+ * within the packages provided by SWT. It is not available on all
+ * platforms and should never be accessed from application code.
+ * </p>
+ */
+ public NSFont handle;
+
+ /**
+ * the traits not supported to the OS font resource
+ * (Warning: This field is platform dependent)
+ * <p>
+ * <b>IMPORTANT:</b> This field is <em>not</em> part of the SWT
+ * public API. It is marked public only so that it can be shared
+ * within the packages provided by SWT. It is not available on all
+ * platforms and should never be accessed from application code.
+ * </p>
+ */
+ public int extraTraits;
+
+ static final double SYNTHETIC_BOLD = -2.5;
+ static final double SYNTHETIC_ITALIC = 0.2;
+
+Font(Device device) {
+ super(device);
+}
+
+/**
+ * Constructs a new font given a device and font data
+ * which describes the desired font's appearance.
+ * <p>
+ * You must dispose the font when it is no longer required.
+ * </p>
+ *
+ * @param device the device to create the font on
+ * @param fd the FontData that describes the desired font (must not be null)
+ *
+ * @exception IllegalArgumentException <ul>
+ * <li>ERROR_NULL_ARGUMENT - if device is null and there is no current device</li>
+ * <li>ERROR_NULL_ARGUMENT - if the fd argument is null</li>
+ * </ul>
+ * @exception SWTError <ul>
+ * <li>ERROR_NO_HANDLES - if a font could not be created from the given font data</li>
+ * </ul>
+ */
+public Font(Device device, FontData fd) {
+ super(device);
+ if (fd == null) SWT.error(SWT.ERROR_NULL_ARGUMENT);
+ NSAutoreleasePool pool = null;
+ if (!NSThread.isMainThread()) pool = (NSAutoreleasePool) new NSAutoreleasePool().alloc().init();
+ try {
+ init(fd.getName(), fd.getHeightF(), fd.getStyle(), fd.nsName);
+ init();
+ } finally {
+ if (pool != null) pool.release();
+ }
+}
+
+/**
+ * Constructs a new font given a device and an array
+ * of font data which describes the desired font's
+ * appearance.
+ * <p>
+ * You must dispose the font when it is no longer required.
+ * </p>
+ *
+ * @param device the device to create the font on
+ * @param fds the array of FontData that describes the desired font (must not be null)
+ *
+ * @exception IllegalArgumentException <ul>
+ * <li>ERROR_NULL_ARGUMENT - if device is null and there is no current device</li>
+ * <li>ERROR_NULL_ARGUMENT - if the fds argument is null</li>
+ * <li>ERROR_INVALID_ARGUMENT - if the length of fds is zero</li>
+ * <li>ERROR_NULL_ARGUMENT - if any fd in the array is null</li>
+ * </ul>
+ * @exception SWTError <ul>
+ * <li>ERROR_NO_HANDLES - if a font could not be created from the given font data</li>
+ * </ul>
+ *
+ * @since 2.1
+ */
+public Font(Device device, FontData[] fds) {
+ super(device);
+ if (fds == null) SWT.error(SWT.ERROR_NULL_ARGUMENT);
+ if (fds.length == 0) SWT.error(SWT.ERROR_INVALID_ARGUMENT);
+ for (int i=0; i<fds.length; i++) {
+ if (fds[i] == null) SWT.error(SWT.ERROR_INVALID_ARGUMENT);
+ }
+ NSAutoreleasePool pool = null;
+ if (!NSThread.isMainThread()) pool = (NSAutoreleasePool) new NSAutoreleasePool().alloc().init();
+ try {
+ FontData fd = fds[0];
+ init(fd.getName(), fd.getHeightF(), fd.getStyle(), fd.nsName);
+ init();
+ } finally {
+ if (pool != null) pool.release();
+ }
+}
+
+/**
+ * Constructs a new font given a device, a font name,
+ * the height of the desired font in points, and a font
+ * style.
+ * <p>
+ * You must dispose the font when it is no longer required.
+ * </p>
+ *
+ * @param device the device to create the font on
+ * @param name the name of the font (must not be null)
+ * @param height the font height in points
+ * @param style a bit or combination of NORMAL, BOLD, ITALIC
+ *
+ * @exception IllegalArgumentException <ul>
+ * <li>ERROR_NULL_ARGUMENT - if device is null and there is no current device</li>
+ * <li>ERROR_NULL_ARGUMENT - if the name argument is null</li>
+ * <li>ERROR_INVALID_ARGUMENT - if the height is negative</li>
+ * </ul>
+ * @exception SWTError <ul>
+ * <li>ERROR_NO_HANDLES - if a font could not be created from the given arguments</li>
+ * </ul>
+ */
+public Font(Device device, String name, int height, int style) {
+ super(device);
+ NSAutoreleasePool pool = null;
+ if (!NSThread.isMainThread()) pool = (NSAutoreleasePool) new NSAutoreleasePool().alloc().init();
+ try {
+ init(name, height, style, null);
+ init();
+ } finally {
+ if (pool != null) pool.release();
+ }
+}
+
+/*public*/ Font(Device device, String name, float height, int style) {
+ super(device);
+ init(name, height, style, null);
+ init();
+}
+
+void addTraits(NSMutableAttributedString attrStr, NSRange range) {
+ if ((extraTraits & OS.NSBoldFontMask) != 0) {
+ attrStr.addAttribute(OS.NSStrokeWidthAttributeName, NSNumber.numberWithDouble(SYNTHETIC_BOLD), range);
+ }
+ if ((extraTraits & OS.NSItalicFontMask) != 0) {
+ attrStr.addAttribute(OS.NSObliquenessAttributeName, NSNumber.numberWithDouble(SYNTHETIC_ITALIC), range);
+ }
+}
+
+void addTraits(NSMutableDictionary dict) {
+ if ((extraTraits & OS.NSBoldFontMask) != 0) {
+ dict.setObject(NSNumber.numberWithDouble(SYNTHETIC_BOLD), OS.NSStrokeWidthAttributeName);
+ }
+ if ((extraTraits & OS.NSItalicFontMask) != 0) {
+ dict.setObject(NSNumber.numberWithDouble(SYNTHETIC_ITALIC), OS.NSObliquenessAttributeName);
+ }
+}
+
+void destroy() {
+ handle.release();
+ handle = null;
+}
+
+/**
+ * Compares the argument to the receiver, and returns true
+ * if they represent the <em>same</em> object using a class
+ * specific comparison.
+ *
+ * @param object the object to compare with this object
+ * @return <code>true</code> if the object is the same as this object and <code>false</code> otherwise
+ *
+ * @see #hashCode
+ */
+public boolean equals(Object object) {
+ if (object == this) return true;
+ if (!(object instanceof Font)) return false;
+ Font font = (Font)object;
+ return handle == font.handle;
+}
+
+/**
+ * Returns an array of <code>FontData</code>s representing the receiver.
+ * On Windows, only one FontData will be returned per font. On X however,
+ * a <code>Font</code> object <em>may</em> be composed of multiple X
+ * fonts. To support this case, we return an array of font data objects.
+ *
+ * @return an array of font data objects describing the receiver
+ *
+ * @exception SWTException <ul>
+ * <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed</li>
+ * </ul>
+ */
+public FontData[] getFontData() {
+ if (isDisposed()) SWT.error(SWT.ERROR_GRAPHIC_DISPOSED);
+ NSAutoreleasePool pool = null;
+ if (!NSThread.isMainThread()) pool = (NSAutoreleasePool) new NSAutoreleasePool().alloc().init();
+ try {
+ NSString family = handle.familyName();
+ String name = family.getString();
+ NSString str = handle.fontName();
+ String nsName = str.getString();
+ NSFontManager manager = NSFontManager.sharedFontManager();
+ int /*long*/ traits = manager.traitsOfFont(handle);
+ int style = SWT.NORMAL;
+ if ((traits & OS.NSItalicFontMask) != 0) style |= SWT.ITALIC;
+ if ((traits & OS.NSBoldFontMask) != 0) style |= SWT.BOLD;
+ if ((extraTraits & OS.NSItalicFontMask) != 0) style |= SWT.ITALIC;
+ if ((extraTraits & OS.NSBoldFontMask) != 0) style |= SWT.BOLD;
+ Point dpi = device.dpi, screenDPI = device.getScreenDPI();
+ FontData data = new FontData(name, (float)/*64*/handle.pointSize() * screenDPI.y / dpi.y, style);
+ data.nsName = nsName;
+ return new FontData[]{data};
+ } finally {
+ if (pool != null) pool.release();
+ }
+}
+
+/**
+ * Invokes platform specific functionality to allocate a new font.
+ * <p>
+ * <b>IMPORTANT:</b> This method is <em>not</em> part of the public
+ * API for <code>Font</code>. It is marked public only so that it
+ * can be shared within the packages provided by SWT. It is not
+ * available on all platforms, and should never be called from
+ * application code.
+ * </p>
+ *
+ * @param device the device on which to allocate the color
+ * @param handle the handle for the font
+ * @param style the style for the font
+ * @param size the size for the font
+ *
+ * @private
+ */
+public static Font cocoa_new(Device device, NSFont handle) {
+ Font font = new Font(device);
+ font.handle = handle;
+ return font;
+}
+
+/**
+ * Returns an integer hash code for the receiver. Any two
+ * objects that return <code>true</code> when passed to
+ * <code>equals</code> must return the same value for this
+ * method.
+ *
+ * @return the receiver's hash
+ *
+ * @see #equals
+ */
+public int hashCode() {
+ return handle != null ? (int)/*64*/handle.id : 0;
+}
+
+void init(String name, float height, int style, String nsName) {
+ if (name == null) SWT.error(SWT.ERROR_NULL_ARGUMENT);
+ if (height < 0) SWT.error(SWT.ERROR_INVALID_ARGUMENT);
+ Point dpi = device.dpi, screenDPI = device.getScreenDPI();
+ float size = height * dpi.y / screenDPI.y;
+ if (nsName != null) {
+ handle = NSFont.fontWithName(NSString.stringWith(nsName), size);
+ } else {
+ NSString family = NSString.stringWith(name);
+ NSFont nsFont = NSFont.fontWithName(family, size);
+ if (nsFont == null) nsFont = NSFont.systemFontOfSize(size);
+ NSFontManager manager = NSFontManager.sharedFontManager();
+ if (nsFont != null) {
+ if ((style & (SWT.BOLD | SWT.ITALIC)) == 0) {
+ handle = nsFont;
+ } else {
+ int traits = 0;
+ if ((style & SWT.ITALIC) != 0) traits |= OS.NSItalicFontMask;
+ if ((style & SWT.BOLD) != 0) traits |= OS.NSBoldFontMask;
+ handle = manager.convertFont(nsFont, traits);
+ if ((style & SWT.ITALIC) != 0 && (handle == null || (manager.traitsOfFont(handle) & OS.NSItalicFontMask) == 0)) {
+ traits &= ~OS.NSItalicFontMask;
+ handle = null;
+ if ((style & SWT.BOLD) != 0) {
+ handle = manager.convertFont(nsFont, traits);
+ }
+ }
+ if ((style & SWT.BOLD) != 0 && handle == null) {
+ traits &= ~OS.NSBoldFontMask;
+ if ((style & SWT.ITALIC) != 0) {
+ traits |= OS.NSItalicFontMask;
+ handle = manager.convertFont(nsFont, traits);
+ }
+ }
+ if (handle == null) handle = nsFont;
+ }
+ }
+ if (handle == null) {
+ handle = NSFont.systemFontOfSize(size);
+ }
+ if ((style & SWT.ITALIC) != 0 && (manager.traitsOfFont(handle) & OS.NSItalicFontMask) == 0) {
+ extraTraits |= OS.NSItalicFontMask;
+ }
+ if ((style & SWT.BOLD) != 0 && (manager.traitsOfFont(handle) & OS.NSBoldFontMask) == 0) {
+ extraTraits |= OS.NSBoldFontMask;
+ }
+ }
+ if (handle == null) {
+ handle = device.systemFont.handle;
+ }
+ handle.retain();
+}
+
+/**
+ * Returns <code>true</code> if the font has been disposed,
+ * and <code>false</code> otherwise.
+ * <p>
+ * This method gets the dispose state for the font.
+ * When a font has been disposed, it is an error to
+ * invoke any other method using the font.
+ *
+ * @return <code>true</code> when the font is disposed and <code>false</code> otherwise
+ */
+public boolean isDisposed() {
+ return handle == null;
+}
+
+/**
+ * Returns a string containing a concise, human-readable
+ * description of the receiver.
+ *
+ * @return a string representation of the receiver
+ */
+public String toString () {
+ if (isDisposed()) return "Font {*DISPOSED*}";
+ return "Font {" + handle + "}";
+}
+
+}

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