diff options
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 | 221 |
1 files changed, 0 insertions, 221 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 b5a0c1e158..0000000000 --- a/bundles/org.eclipse.swt/Eclipse SWT/gtk/org/eclipse/swt/graphics/Font.java +++ /dev/null @@ -1,221 +0,0 @@ -package org.eclipse.swt.graphics; - -/* - * (c) Copyright IBM Corp. 2000, 2001. - * All Rights Reserved - */ - -import org.eclipse.swt.*; -import org.eclipse.swt.internal.*; -import org.eclipse.swt.internal.gtk.*; -import org.eclipse.swt.widgets.*; - -/** - * 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 - */ -public final class Font { - /** - * the handle to the OS font resource - * (Warning: This field is platform dependent) - */ - public int handle; -Font() { -} -/** - * 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 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 display, FontData fd) { - if (fd == null) error(SWT.ERROR_NULL_ARGUMENT); - - String xlfd = fd.getXlfd(); - byte[] buffer = Converter.wcsToMbcs(null, xlfd, true); - handle = OS.gdk_font_load(buffer); - if (handle == 0) { - int hStyle = OS.gtk_widget_get_default_style(); - GtkStyle gtkStyle = new GtkStyle(); - OS.memmove(gtkStyle, hStyle, GtkStyle.sizeof); - handle = OS.gdk_font_ref(gtkStyle.font); - } -} -/** - * 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 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 display, String fontFamily, int height, int style) { - if (fontFamily == null) error(SWT.ERROR_NULL_ARGUMENT); - FontData fd = new FontData(fontFamily, height, style); - byte[] buffer = Converter.wcsToMbcs(null, fd.getXlfd(), true); - handle = OS.gdk_font_load(buffer); - if (handle == 0) { - int hStyle = OS.gtk_widget_get_default_style(); - GtkStyle gtkStyle = new GtkStyle(); - OS.memmove(gtkStyle, hStyle, GtkStyle.sizeof); - handle = OS.gdk_font_ref(gtkStyle.font); - } -} -/** - * Disposes of the operating system resources associated with - * the font. Applications must dispose of all fonts which - * they allocate. - */ -public void dispose() { - if (handle != 0) OS.gdk_font_unref(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 OS.gdk_font_equal(handle, ((Font)object).handle); -} -void error(int code) { - throw new SWTError (code); -} - -/** - * 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() { - int index=0; - int fnames = getFontNameList(handle); - int nfonts = OS.g_slist_length(fnames); - FontData[] answer = new FontData[nfonts]; - for (int i=0; i<nfonts; i++) { - FontData data = new FontData(); - - int name = OS.g_slist_nth_data(fnames, index); - int length = OS.strlen(name); - byte [] buffer1 = new byte[length]; - OS.memmove(buffer1, name, length); - char [] buffer2 = Converter.mbcsToWcs (null, buffer1); - String fontname = new String (buffer2, 0, buffer2.length); - data.setXlfd(fontname); - - // Wild guess, 'a' looks average enough - data.averageWidth = OS.gdk_char_width(handle, (byte)'a'); - - // Wild guess, a progressive font should probably have A wider than l - int widthA = OS.gdk_char_width(handle, (byte)'A'); - int widthl = OS.gdk_char_width(handle, (byte)'l'); - if (widthA == widthl) data.spacing = "m"; - else data.spacing = "p"; - - answer[i] = data; - } - return answer; -} -static int getFontNameList(int handle) { - int[] mem = new int[7]; - OS.memmove(mem, handle, 7*4); - int type = mem[0]; - int ascent = mem[1]; - int descent = mem[2]; - int xfont =mem [3]; - int xdisplay = mem[4]; - int ref_count = mem[5]; - int names = mem[6]; - return names; -} -public static Font gtk_new(int handle) { - Font font = new Font(); - font.handle = handle; - return font; -} -/** - * Returns an integer hash code for the receiver. Any two - * objects which 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; -} -/** - * 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 + "}"; -} - -} |