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This commit is contained in:
Caspian Rychlik-Prince 2005-08-20 10:33:28 +00:00
parent b2713156b8
commit 4e3a47e343
1 changed files with 55 additions and 45 deletions
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100
src/java/org/lwjgl/util/Display.java
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@ -31,7 +31,6 @@
*/
package org.lwjgl.util;
import java.lang.reflect.Field;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.Comparator;
@ -132,34 +131,49 @@ public final class Display {
*/
public static DisplayMode setDisplayMode(DisplayMode[] dm, final String[] param) throws Exception {
class FieldAccessor {
final String fieldName;
final int order;
final int preferred;
final boolean usePreferred;
FieldAccessor(String fieldName, int order, int preferred, boolean usePreferred) {
this.fieldName = fieldName;
this.order = order;
this.preferred = preferred;
this.usePreferred = usePreferred;
}
int getInt(DisplayMode mode) {
if ("width".equals(fieldName)) {
return mode.getWidth();
}
if ("height".equals(fieldName)) {
return mode.getHeight();
}
if ("freq".equals(fieldName)) {
return mode.getFrequency();
}
if ("bpp".equals(fieldName)) {
return mode.getBitsPerPixel();
}
throw new IllegalArgumentException("Unknown field "+fieldName);
}
}
class Sorter implements Comparator {
final Field[] field;
final int[] order;
final boolean[] usePreferred;
final int[] preferred;
final FieldAccessor[] field;
Sorter() throws NoSuchFieldException {
field = new Field[param.length];
order = new int[param.length];
preferred = new int[param.length];
usePreferred = new boolean[param.length];
field = new FieldAccessor[param.length];
for (int i = 0; i < field.length; i ++) {
int idx = param[i].indexOf('=');
if (idx > 0) {
preferred[i] = Integer.parseInt(param[i].substring(idx + 1, param[i].length()));
usePreferred[i] = true;
param[i] = param[i].substring(0, idx);
field[i] = DisplayMode.class.getDeclaredField(param[i]);
field[i] = new FieldAccessor(param[i].substring(0, idx), 0, Integer.parseInt(param[i].substring(idx + 1, param[i].length())), true);
} else if (param[i].charAt(0) == '-') {
field[i] = DisplayMode.class.getDeclaredField(param[i].substring(1));
order[i] = -1;
field[i] = new FieldAccessor(param[i].substring(1), -1, 0, false);
} else {
field[i] = DisplayMode.class.getDeclaredField(param[i]);
order[i] = 1;
field[i] = new FieldAccessor(param[i], 1, 0, false);
}
field[i].setAccessible(true);
}
}
@ -171,35 +185,31 @@ public final class Display {
DisplayMode dm2 = (DisplayMode) o2;
for (int i = 0; i < field.length; i ++) {
try {
int f1 = field[i].getInt(dm1);
int f2 = field[i].getInt(dm2);
if (usePreferred[i] && f1 != f2) {
if (f1 == preferred[i])
int f1 = field[i].getInt(dm1);
int f2 = field[i].getInt(dm2);
if (field[i].usePreferred && f1 != f2) {
if (f1 == field[i].preferred)
return -1;
else if (f2 == field[i].preferred)
return 1;
else {
// Score according to the difference between the values
int absf1 = Math.abs(f1 - field[i].preferred);
int absf2 = Math.abs(f2 - field[i].preferred);
if (absf1 < absf2)
return -1;
else if (f2 == preferred[i])
else if (absf1 > absf2)
return 1;
else {
// Score according to the difference between the values
int absf1 = Math.abs(f1 - preferred[i]);
int absf2 = Math.abs(f2 - preferred[i]);
if (absf1 < absf2)
return -1;
else if (absf1 > absf2)
return 1;
else
continue;
}
} else if (f1 < f2)
return order[i];
else if (f1 == f2)
continue;
else
return -order[i];
} catch (IllegalAccessException e) {
throw new RuntimeException(e);
}
else
continue;
}
} else if (f1 < f2)
return field[i].order;
else if (f1 == f2)
continue;
else
return -field[i].order;
}
return 0;