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Diffstat (limited to 'bundles/org.eclipse.swt/Eclipse SWT/gtk/org/eclipse/swt/graphics/Font.java')
| -rw-r--r-- | bundles/org.eclipse.swt/Eclipse SWT/gtk/org/eclipse/swt/graphics/Font.java | 288 |
1 files changed, 0 insertions, 288 deletions
diff --git a/bundles/org.eclipse.swt/Eclipse SWT/gtk/org/eclipse/swt/graphics/Font.java b/bundles/org.eclipse.swt/Eclipse SWT/gtk/org/eclipse/swt/graphics/Font.java deleted file mode 100644 index 3607e38cfa..0000000000 --- a/bundles/org.eclipse.swt/Eclipse SWT/gtk/org/eclipse/swt/graphics/Font.java +++ /dev/null @@ -1,288 +0,0 @@ -/******************************************************************************* - * Copyright (c) 2000, 2008 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.*; -import org.eclipse.swt.internal.*; -import org.eclipse.swt.internal.gtk.*; - -/** - * 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 int /*long*/ handle; - -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); - init(fd.getName(), fd.getHeightF(), fd.getStyle(), fd.string); - init(); -} - -/** - * 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); - } - FontData fd = fds[0]; - init(fd.getName(), fd.getHeightF(), fd.getStyle(), fd.string); - init(); -} - -/** - * 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); - init(name, height, style, null); - init(); -} - -/*public*/ Font(Device device, String name, float height, int style) { - super(device); - init(name, height, style, null); - init(); -} - -void destroy() { - OS.pango_font_description_free(handle); - handle = 0; -} - -/** - * 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; - return handle == ((Font)object).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); - - int /*long*/ family = OS.pango_font_description_get_family(handle); - int length = OS.strlen(family); - byte[] buffer = new byte[length]; - OS.memmove(buffer, family, length); - String name = new String(Converter.mbcsToWcs(null, buffer)); - float height = (float)OS.pango_font_description_get_size(handle) / OS.PANGO_SCALE; - int pangoStyle = OS.pango_font_description_get_style(handle); - int pangoWeight = OS.pango_font_description_get_weight(handle); - int style = SWT.NORMAL; - if (pangoStyle == OS.PANGO_STYLE_ITALIC) style |= SWT.ITALIC; - if (pangoStyle == OS.PANGO_STYLE_OBLIQUE) style |= SWT.ROMAN; - if (pangoWeight >= OS.PANGO_WEIGHT_BOLD) style |= SWT.BOLD; - int /*long*/ fontString = OS.pango_font_description_to_string (handle); - length = OS.strlen (fontString); - buffer = new byte [length + 1]; - OS.memmove (buffer, fontString, length); - OS.g_free (fontString); - FontData data = new FontData(name, height, style); - data.string = buffer; - return new FontData[]{data}; -} - -/** - * 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 - * - * @private - */ -public static Font gtk_new(Device device, int /*long*/ 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 (int)/*64*/handle; -} - -void init(String name, float height, int style, byte[] fontString) { - if (name == null) SWT.error(SWT.ERROR_NULL_ARGUMENT); - if (height < 0) SWT.error(SWT.ERROR_INVALID_ARGUMENT); - if (fontString != null) { - handle = OS.pango_font_description_from_string (fontString); - if (handle == 0) SWT.error(SWT.ERROR_NO_HANDLES); - } else { - handle = OS.pango_font_description_new(); - if (handle == 0) SWT.error(SWT.ERROR_NO_HANDLES); - byte[] buffer = Converter.wcsToMbcs(null, name, true); - OS.pango_font_description_set_family(handle, buffer); - if (height > 0) { - OS.pango_font_description_set_size(handle, (int)(0.5f + height * OS.PANGO_SCALE)); - } - OS.pango_font_description_set_stretch(handle, OS.PANGO_STRETCH_NORMAL); - int pangoStyle = OS.PANGO_STYLE_NORMAL; - int pangoWeight = OS.PANGO_WEIGHT_NORMAL; - if ((style & SWT.ITALIC) != 0) pangoStyle = OS.PANGO_STYLE_ITALIC; - if ((style & SWT.ROMAN) != 0) pangoStyle = OS.PANGO_STYLE_OBLIQUE; - if ((style & SWT.BOLD) != 0) pangoWeight = OS.PANGO_WEIGHT_BOLD; - OS.pango_font_description_set_style(handle, pangoStyle); - OS.pango_font_description_set_weight(handle, pangoWeight); - } -} - -/** - * 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 == 0; -} - -/** - * 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 + "}"; -} - -} |