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package org.eclipse.swt.graphics;
/*
* (c) Copyright IBM Corp. 2000, 2001.
* All Rights Reserved
*/
import org.eclipse.swt.internal.*;
import org.eclipse.swt.internal.photon.*;
import org.eclipse.swt.*;
public final class Font {
/**
* the handle to the OS font resource
* (Warning: This field is platform dependent)
*/
public byte[] handle;
/**
* the device where this font was created
*/
Device device;
static final byte[] DefaultFontName = {(byte)'h', (byte)'e', (byte)'l', (byte)'v'};
static final byte[] DefaultFont = {(byte)'h', (byte)'e', (byte)'l', (byte)'v', (byte)'1', (byte)'2'};
Font() {
}
public Font(Device device, FontData fd) {
if (device == null) device = Device.getDevice();
if (device == null) SWT.error(SWT.ERROR_NULL_ARGUMENT);
if (fd == null) SWT.error(SWT.ERROR_NULL_ARGUMENT);
init(device, fd.getName(), fd.getHeight(), fd.getStyle(), fd.stem);
if (device.tracking) device.new_Object(this);
}
public Font(Device device, String name, int height, int style) {
if (device == null) device = Device.getDevice();
if (device == null) SWT.error(SWT.ERROR_NULL_ARGUMENT);
if (name == null) SWT.error(SWT.ERROR_NULL_ARGUMENT);
init(device, name, height, style, null);
if (device.tracking) device.new_Object(this);
}
public void dispose() {
if (handle == null) return;
handle = null;
if (device.tracking) device.dispose_Object(this);
device = null;
}
public boolean equals(Object object) {
if (object == this) return true;
if (!(object instanceof Font)) return false;
byte[] h = ((Font)object).handle;
if (h == handle) return true;
if (h == null || handle == null) return false;
if (h.length != handle.length) return false;
for (int i = 0; i < handle.length; i++) {
if (handle[i] != h[i]) return false;
}
return true;
}
public FontData[] getFontData() {
if (isDisposed()) SWT.error(SWT.ERROR_GRAPHIC_DISPOSED);
return new FontData[]{new FontData(handle)};
}
public int hashCode () {
if (handle == null) return 0;
return handle.hashCode();
}
public boolean isDisposed() {
return handle == null;
}
void init(Device device, String name, int height, int style, byte[] stem) {
if (height < 0) SWT.error(SWT.ERROR_NULL_ARGUMENT);
this.device = device;
if (stem != null) {
handle = stem;
} else {
byte[] description = (name == null) ? null : Converter.wcsToMbcs(null, name, true);
int osStyle = 0;
if ((style & SWT.BOLD) != 0) osStyle |= OS.PF_STYLE_BOLD;
if ((style & SWT.ITALIC) != 0) osStyle |= OS.PF_STYLE_ITALIC;
byte[] buffer = new byte[OS.MAX_FONT_TAG];
handle = OS.PfGenerateFontName(description, osStyle, height, buffer);
if (handle == null) handle = OS.PfGenerateFontName(DefaultFontName, osStyle, height, buffer);
}
if (handle == null) handle = DefaultFont;
FontQueryInfo info = new FontQueryInfo();
if (OS.PfQueryFontInfo(handle, info) == 0) handle = info.font;
}
public static Font photon_new(Device device, byte[] stem) {
if (device == null) device = Device.getDevice();
Font font = new Font();
font.init(device, null, 0, 0, stem);
return font;
}
public String toString () {
if (isDisposed()) return "Font {*DISPOSED*}";
return "Font {" + new String(handle).trim() + "}";
}
}
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