diff options
Diffstat (limited to 'prototypes/miglayout/net/miginfocom/layout/UnitValue.java')
-rw-r--r-- | prototypes/miglayout/net/miginfocom/layout/UnitValue.java | 1250 |
1 files changed, 625 insertions, 625 deletions
diff --git a/prototypes/miglayout/net/miginfocom/layout/UnitValue.java b/prototypes/miglayout/net/miginfocom/layout/UnitValue.java index aa12ac3e..e4da114e 100644 --- a/prototypes/miglayout/net/miginfocom/layout/UnitValue.java +++ b/prototypes/miglayout/net/miginfocom/layout/UnitValue.java @@ -1,626 +1,626 @@ -package net.miginfocom.layout;
-/*
- * License (BSD):
- * ==============
- *
- * Copyright (c) 2004, Mikael Grev, MiG InfoCom AB. (miglayout (at) miginfocom (dot) com)
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without modification,
- * are permitted provided that the following conditions are met:
- * Redistributions of source code must retain the above copyright notice, this list
- * of conditions and the following disclaimer.
- * Redistributions in binary form must reproduce the above copyright notice, this
- * list of conditions and the following disclaimer in the documentation and/or other
- * materials provided with the distribution.
- * Neither the name of the MiG InfoCom AB nor the names of its contributors may be
- * used to endorse or promote products derived from this software without specific
- * prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
- * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
- * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
- * IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
- * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
- * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA,
- * OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
- * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
- * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
- * OF SUCH DAMAGE.
- *
- * @version 1.0
- * @author Mikael Grev, MiG InfoCom AB
- * Date: 2006-sep-08
- */
-
-import java.beans.Encoder;
-import java.beans.Expression;
-import java.beans.PersistenceDelegate;
-import java.io.*;
-import java.util.ArrayList;
-import java.util.HashMap;
-
-public final class UnitValue implements Serializable
-{
- private static final HashMap<String, Integer> UNIT_MAP = new HashMap<String, Integer>(32);
-
- private static final ArrayList<UnitConverter> CONVERTERS = new ArrayList<UnitConverter>();
-
- /** An operation indicating a static value.
- */
- public static final int STATIC = 100;
-
- /** An operation indicating a addition of two sub units.
- */
- public static final int ADD = 101; // Must have "sub-unit values"
-
- /** An operation indicating a subtraction of two sub units
- */
- public static final int SUB = 102; // Must have "sub-unit values"
-
- /** An operation indicating a multiplication of two sub units.
- */
- public static final int MUL = 103; // Must have "sub-unit values"
-
- /** An operation indicating a division of two sub units.
- */
- public static final int DIV = 104; // Must have "sub-unit values"
-
- /** An operation indicating the minimum of two sub units
- */
- public static final int MIN = 105; // Must have "sub-unit values"
-
- /** An operation indicating the maximum of two sub units
- */
- public static final int MAX = 106; // Must have "sub-unit values"
-
- /** An operation indicating the middle value of two sub units
- */
- public static final int MID = 107; // Must have "sub-unit values"
-
-
-
-
- /** A unit indicating pixels.
- */
- public static final int PIXEL = 0;
-
- /** A unit indicating logical horizontal pixels.
- */
- public static final int LPX = 1;
-
- /** A unit indicating logical vertical pixels.
- */
- public static final int LPY = 2;
-
- /** A unit indicating millimeters.
- */
- public static final int MM = 3;
-
- /** A unit indicating centimeters.
- */
- public static final int CM = 4;
-
- /** A unit indicating inches.
- */
- public static final int INCH = 5;
-
- /** A unit indicating percent.
- */
- public static final int PERCENT = 6;
-
- /** A unit indicating points.
- */
- public static final int PT = 7;
-
- /** A unit indicating screen width in pixels.
- */
- public static final int SPX = 8;
-
- /** A unit indicating screen height in pixels.
- */
- public static final int SPY = 9;
-
- /** A unit indicating alignment.
- */
- public static final int ALIGN = 12;
-
- /** A unit indicating minimum size.
- */
- public static final int MIN_SIZE = 13;
-
- /** A unit indicating preferred size.
- */
- public static final int PREF_SIZE = 14;
-
- /** A unit indicating maximum size.
- */
- public static final int MAX_SIZE = 15;
-
- /** A unit indicating botton size.
- */
- public static final int BUTTON = 16;
-
- /** A unit indicating linking to x.
- */
- public static final int LINK_X = 18; // First link
-
- /** A unit indicating linking to y.
- */
- public static final int LINK_Y = 19;
-
- /** A unit indicating linking to width.
- */
- public static final int LINK_W = 20;
-
- /** A unit indicating linking to height.
- */
- public static final int LINK_H = 21;
-
- /** A unit indicating linking to x2.
- */
- public static final int LINK_X2 = 22;
-
- /** A unit indicating linking to y2.
- */
- public static final int LINK_Y2 = 23;
-
- /** A unit indicating linking to x position on screen.
- */
- public static final int LINK_XPOS = 24;
-
- /** A unit indicating linking to y position on screen.
- */
- public static final int LINK_YPOS = 25; // Last link
-
- /** A unit indicating a lookup.
- */
- public static final int LOOKUP = 26;
-
- /** A unit indicating label alignment.
- */
- public static final int LABEL_ALIGN = 27;
-
- private static final int IDENTITY = -1;
-
- static {
- UNIT_MAP.put("px", new Integer(PIXEL));
- UNIT_MAP.put("lpx", new Integer(LPX));
- UNIT_MAP.put("lpy", new Integer(LPY));
- UNIT_MAP.put("%", new Integer(PERCENT));
- UNIT_MAP.put("cm", new Integer(CM));
- UNIT_MAP.put("in", new Integer(INCH));
- UNIT_MAP.put("spx", new Integer(SPX));
- UNIT_MAP.put("spy", new Integer(SPY));
- UNIT_MAP.put("al", new Integer(ALIGN));
- UNIT_MAP.put("mm", new Integer(MM));
- UNIT_MAP.put("pt", new Integer(PT));
- UNIT_MAP.put("min", new Integer(MIN_SIZE));
- UNIT_MAP.put("minimum", new Integer(MIN_SIZE));
- UNIT_MAP.put("p", new Integer(PREF_SIZE));
- UNIT_MAP.put("pref", new Integer(PREF_SIZE));
- UNIT_MAP.put("max", new Integer(MAX_SIZE));
- UNIT_MAP.put("maximum", new Integer(MAX_SIZE));
- UNIT_MAP.put("button", new Integer(BUTTON));
- UNIT_MAP.put("label", new Integer(LABEL_ALIGN));
- }
-
- static final UnitValue ZERO = new UnitValue(0, null, PIXEL, true, STATIC, null, null, "0px");
- static final UnitValue TOP = new UnitValue(0, null, PERCENT, false, STATIC, null, null, "top");
- static final UnitValue LEADING = new UnitValue(0, null, PERCENT, true, STATIC, null, null, "leading");
- static final UnitValue LEFT = new UnitValue(0, null, PERCENT, true, STATIC, null, null, "left");
- static final UnitValue CENTER = new UnitValue(50, null, PERCENT, true, STATIC, null, null, "center");
- static final UnitValue TRAILING = new UnitValue(100, null, PERCENT, true, STATIC, null, null, "trailing");
- static final UnitValue RIGHT = new UnitValue(100, null, PERCENT, true, STATIC, null, null, "right");
- static final UnitValue BOTTOM = new UnitValue(100, null, PERCENT, false, STATIC, null, null, "bottom");
- static final UnitValue LABEL = new UnitValue(0, null, LABEL_ALIGN, false, STATIC, null, null, "label");
-
- static final UnitValue INF = new UnitValue(LayoutUtil.INF, null, PIXEL, true, STATIC, null, null, "inf");
-
- static final UnitValue BASELINE_IDENTITY = new UnitValue(0, null, IDENTITY, false, STATIC, null, null, "baseline");
-
- private final transient float value;
- private final transient int unit;
- private final transient int oper;
- private final transient String unitStr;
- private final transient boolean isHor;
- private final transient UnitValue[] subUnits;
-
- // Pixel
- public UnitValue(float value) // If hor/ver does not matter.
- {
- this(value, null, PIXEL, true, STATIC, null, null, value + "px");
- }
-
- public UnitValue(float value, int unit, String createString) // If hor/ver does not matter.
- {
- this(value, null, unit, true, STATIC, null, null, createString);
- }
-
- UnitValue(float value, String unitStr, boolean isHor, int oper, String createString)
- {
- this(value, unitStr, -1, isHor, oper, null, null, createString);
- }
-
- UnitValue(boolean isHor, int oper, UnitValue sub1, UnitValue sub2, String createString)
- {
- this(0, "", -1, isHor, oper, sub1, sub2, createString);
- if (sub1 == null || sub2 == null)
- throw new IllegalArgumentException("Sub units is null!");
- }
-
- private UnitValue(float value, String unitStr, int unit, boolean isHor, int oper, UnitValue sub1, UnitValue sub2, String createString)
- {
- if (oper < STATIC || oper > MID)
- throw new IllegalArgumentException("Unknown Operation: " + oper);
-
- if (oper >= ADD && oper <= MID && (sub1 == null || sub2 == null))
- throw new IllegalArgumentException(oper + " Operation may not have null sub-UnitValues.");
-
- this.value = value;
- this.oper = oper;
- this.isHor = isHor;
- this.unitStr = unitStr;
- this.unit = unitStr != null ? parseUnitString() : unit;
- this.subUnits = sub1 != null && sub2 != null ? new UnitValue[] {sub1, sub2} : null;
-
- LayoutUtil.putCCString(this, createString); // "this" escapes!! Safe though.
- }
-
- /** Returns the size in pixels rounded.
- * @param refValue The reference value. Normally the size of the parent. For unit {@link #ALIGN} the current size of the component should be sent in.
- * @param parent The parent. May be <code>null</code> for testing the validity of the value, but should normally not and are not
- * required to return any usable value if <code>null</code>.
- * @param comp The component, if any, that the value is for. Might be <code>null</code> if the value is not
- * connected to any component.
- * @return The size in pixels.
- */
- public final int getPixels(float refValue, ContainerWrapper parent, ComponentWrapper comp)
- {
- return Math.round(getPixelsExact(refValue, parent, comp));
- }
-
- private static final float[] SCALE = new float[] {25.4f, 2.54f, 1f, 0f, 72f};
- /** Returns the size in pixels.
- * @param refValue The reference value. Normally the size of the parent. For unit {@link #ALIGN} the current size of the component should be sent in.
- * @param parent The parent. May be <code>null</code> for testing the validity of the value, but should normally not and are not
- * required to return any usable value if <code>null</code>.
- * @param comp The component, if any, that the value is for. Might be <code>null</code> if the value is not
- * connected to any component.
- * @return The size in pixels.
- */
- public final float getPixelsExact(float refValue, ContainerWrapper parent, ComponentWrapper comp)
- {
- if (parent == null)
- return 1;
-
- if (oper == STATIC) {
- switch (unit) {
- case PIXEL:
- return value;
-
- case LPX:
- case LPY:
- return parent.getPixelUnitFactor(unit == LPX) * value;
-
- case MM:
- case CM:
- case INCH:
- case PT:
- float f = SCALE[unit - MM];
- Float s = isHor ? PlatformDefaults.getHorizontalScaleFactor() : PlatformDefaults.getVerticalScaleFactor();
- if (s != null)
- f *= s.floatValue();
- return (isHor ? parent.getHorizontalScreenDPI() : parent.getVerticalScreenDPI()) * value / f;
-
- case PERCENT:
- return value * refValue * 0.01f;
-
- case SPX:
- case SPY:
- return (unit == SPX ? parent.getScreenWidth() : parent.getScreenHeight()) * value * 0.01f;
-
- case ALIGN:
- Integer st = LinkHandler.getValue(parent.getLayout(), "visual", isHor ? LinkHandler.X : LinkHandler.Y);
- Integer sz = LinkHandler.getValue(parent.getLayout(), "visual", isHor ? LinkHandler.WIDTH : LinkHandler.HEIGHT);
- if (st == null || sz == null)
- return 0;
- return value * (Math.max(0, sz.intValue()) - refValue) + st.intValue();
-
- case MIN_SIZE:
- if (comp == null)
- return 0;
- return isHor ? comp.getMinimumWidth() : comp.getMinimumHeight();
-
- case PREF_SIZE:
- if (comp == null)
- return 0;
- return isHor ? comp.getPreferredWidth() : comp.getPreferredHeight();
-
- case MAX_SIZE:
- if (comp == null)
- return 0;
- return isHor ? comp.getMaximumWidth() : comp.getMaximumHeight();
-
- case BUTTON:
- return PlatformDefaults.getMinimumButtonWidth().getPixels(refValue, parent, comp);
-
- case LINK_X:
- case LINK_Y:
- case LINK_W:
- case LINK_H:
- case LINK_X2:
- case LINK_Y2:
- case LINK_XPOS:
- case LINK_YPOS:
- Integer v = LinkHandler.getValue(parent.getLayout(), getLinkTargetId(), unit - (unit >= LINK_XPOS ? LINK_XPOS : LINK_X));
- if (v == null)
- return 0;
-
- if (unit == LINK_XPOS)
- return parent.getScreenLocationX() + v.intValue();
- if (unit == LINK_YPOS)
- return parent.getScreenLocationY() + v.intValue();
-
- return v.intValue();
-
- case LOOKUP:
- float res = lookup(refValue, parent, comp);
- if (res != UnitConverter.UNABLE)
- return res;
-
- case LABEL_ALIGN:
- return PlatformDefaults.getLabelAlignPercentage() * refValue;
-
- case IDENTITY:
- }
- throw new IllegalArgumentException("Unknown/illegal unit: " + unit + ", unitStr: " + unitStr);
- }
-
- if (subUnits != null && subUnits.length == 2) {
- float r1 = subUnits[0].getPixelsExact(refValue, parent, comp);
- float r2 = subUnits[1].getPixelsExact(refValue, parent, comp);
- switch (oper) {
- case ADD:
- return r1 + r2;
- case SUB:
- return r1 - r2;
- case MUL:
- return r1 * r2;
- case DIV:
- return r1 / r2;
- case MIN:
- return r1 < r2 ? r1 : r2;
- case MAX:
- return r1 > r2 ? r1 : r2;
- case MID:
- return (r1 + r2) * 0.5f;
- }
- }
-
- throw new IllegalArgumentException("Internal: Unknown Oper: " + oper);
- }
-
- private final float lookup(float refValue, ContainerWrapper parent, ComponentWrapper comp)
- {
- float res = UnitConverter.UNABLE;
- for (int i = CONVERTERS.size() - 1; i >= 0; i--) {
- res = CONVERTERS.get(i).convertToPixels(value, unitStr, isHor, refValue, parent, comp);
- if (res != UnitConverter.UNABLE)
- return res;
- }
- return PlatformDefaults.convertToPixels(value, unitStr, isHor, refValue, parent, comp);
- }
-
- private final int parseUnitString()
- {
- int len = unitStr.length();
- if (len == 0)
- return isHor ? PlatformDefaults.getDefaultHorizontalUnit() : PlatformDefaults.getDefaultVerticalUnit();
-
- Integer u = UNIT_MAP.get(unitStr);
- if (u != null)
- return u.intValue();
-
- if (unitStr.equals("lp"))
- return isHor ? LPX : LPY;
-
- if (unitStr.equals("sp"))
- return isHor ? SPX : SPY;
-
- if (lookup(0, null, null) != UnitConverter.UNABLE) // To test so we can fail fast
- return LOOKUP;
-
- if (unitStr.endsWith(".x"))
- return LINK_X;
- if (unitStr.endsWith(".y"))
- return LINK_Y;
- if (unitStr.endsWith(".w") || unitStr.endsWith(".width"))
- return LINK_W;
- if (unitStr.endsWith(".h") || unitStr.endsWith(".height"))
- return LINK_H;
- if (unitStr.endsWith(".x2"))
- return LINK_X2;
- if (unitStr.endsWith(".y2"))
- return LINK_Y2;
- if (unitStr.endsWith(".xpos"))
- return LINK_XPOS;
- if (unitStr.endsWith(".ypos"))
- return LINK_YPOS;
-
- throw new IllegalArgumentException("Unknown keyword: " + unitStr);
- }
-
- final boolean isLinked()
- {
- return unit >= LINK_X && unit <= LINK_YPOS;
- }
-
- final boolean isLinkedDeep()
- {
- if (subUnits == null)
- return isLinked();
-
- for (int i = 0; i < subUnits.length; i++) {
- if (subUnits[i].isLinkedDeep())
- return true;
- }
-
- return false;
- }
-
- final String getLinkTargetId()
- {
- return unitStr.substring(0, unitStr.length() - (unit < LINK_X2 ? 2 : (unit > LINK_Y2 ? 5 : 3)));
- }
-
- final UnitValue getSubUnitValue(int i)
- {
- return subUnits[i];
- }
-
- final int getSubUnitCount()
- {
- return subUnits != null ? subUnits.length : 0;
- }
-
- public final UnitValue[] getSubUnits()
- {
- return subUnits;
- }
-
- public final int getUnit()
- {
- return unit;
- }
-
- public final String getUnitString()
- {
- return unitStr;
- }
-
- public final int getOperation()
- {
- return oper;
- }
-
- public final float getValue()
- {
- return value;
- }
-
- public final boolean isHorizontal()
- {
- return isHor;
- }
-
- final public String toString()
- {
- return getClass().getName() + ". Value=" + value + ", unit=" + unit + ", unitString: " + unitStr + ", oper=" + oper + ", isHor: " + isHor;
- }
-
- /** Returns the creation string for this object. Note that {@link LayoutUtil#setDesignTime(ContainerWrapper, boolean)} must be
- * set to <code>true</code> for the creation strings to be stored.
- * @return The constraint string or <code>null</code> if none is registered.
- */
- public final String getConstraintString()
- {
- return LayoutUtil.getCCString(this);
- }
-
- public final int hashCode()
- {
- return (int) (value * 12345) + (oper >>> 5) + unit >>> 17;
- }
-
- /** Adds a global unit converter that can convert from some <code>unit</code> to pixels.
- * <p>
- * This converter will be asked before the platform converter so the values for it (e.g. "related" and "unrelated")
- * can be overridden. It is however not possible to override the built in ones (e.g. "mm", "pixel" or "lp").
- * @param conv The converter. Not <code>null</code>.
- */
- public final synchronized static void addGlobalUnitConverter(UnitConverter conv)
- {
- if (conv == null)
- throw new NullPointerException();
- CONVERTERS.add(conv);
- }
-
- /** Removed the converter.
- * @param unit The converter.
- * @return If there was a converter found and thus removed.
- */
- public final synchronized static boolean removeGlobalUnitConverter(String unit)
- {
- return CONVERTERS.remove(unit);
- }
-
- /** Returns the global converters currently registered. The platform converter will not be in this list.
- * @return The converters. Never <code>null</code>.
- */
- public final synchronized static UnitConverter[] getGlobalUnitConverters()
- {
- return CONVERTERS.toArray(new UnitConverter[CONVERTERS.size()]);
- }
-
- /** Returns the current default unit. The default unit is the unit used if no unit is set. E.g. "width 10".
- * @return The current default unit.
- * @see #PIXEL
- * @see #LPX
- * @deprecated Use {@link PlatformDefaults#getDefaultHorizontalUnit()} and {@link PlatformDefaults#getDefaultVerticalUnit()} instead.
- */
- public final static int getDefaultUnit()
- {
- return PlatformDefaults.getDefaultHorizontalUnit();
- }
-
- /** Sets the default unit. The default unit is the unit used if no unit is set. E.g. "width 10".
- * @param unit The new default unit.
- * @see #PIXEL
- * @see #LPX
- * @deprecated Use {@link PlatformDefaults#setDefaultHorizontalUnit(int)} and {@link PlatformDefaults#setDefaultVerticalUnit(int)} instead.
- */
- public final static void setDefaultUnit(int unit)
- {
- PlatformDefaults.setDefaultHorizontalUnit(unit);
- PlatformDefaults.setDefaultVerticalUnit(unit);
- }
-
- static {
- LayoutUtil.setDelegate(UnitValue.class, new PersistenceDelegate() {
- protected Expression instantiate(Object oldInstance, Encoder out)
- {
- UnitValue uv = (UnitValue) oldInstance;
- String cs = uv.getConstraintString();
- if (cs == null)
- throw new IllegalStateException("Design time must be on to use XML persistence. See LayoutUtil.");
-
- return new Expression(oldInstance, ConstraintParser.class, "parseUnitValueOrAlign", new Object[] {
- uv.getConstraintString(), (uv.isHorizontal() ? Boolean.TRUE : Boolean.FALSE), null
- });
- }
- });
- }
-
- // ************************************************
- // Persistence Delegate and Serializable combined.
- // ************************************************
-
- private static final long serialVersionUID = 1L;
-
- private Object readResolve() throws ObjectStreamException
- {
- return LayoutUtil.getSerializedObject(this);
- }
-
- private void writeObject(ObjectOutputStream out) throws IOException
- {
- if (getClass() == UnitValue.class)
- LayoutUtil.writeAsXML(out, this);
- }
-
- private void readObject(ObjectInputStream in) throws IOException, ClassNotFoundException
- {
- LayoutUtil.setSerializedObject(this, LayoutUtil.readAsXML(in));
- }
+package net.miginfocom.layout; +/* + * License (BSD): + * ============== + * + * Copyright (c) 2004, Mikael Grev, MiG InfoCom AB. (miglayout (at) miginfocom (dot) com) + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without modification, + * are permitted provided that the following conditions are met: + * Redistributions of source code must retain the above copyright notice, this list + * of conditions and the following disclaimer. + * Redistributions in binary form must reproduce the above copyright notice, this + * list of conditions and the following disclaimer in the documentation and/or other + * materials provided with the distribution. + * Neither the name of the MiG InfoCom AB nor the names of its contributors may be + * used to endorse or promote products derived from this software without specific + * prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED + * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. + * IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, + * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, + * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, + * OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, + * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) + * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY + * OF SUCH DAMAGE. + * + * @version 1.0 + * @author Mikael Grev, MiG InfoCom AB + * Date: 2006-sep-08 + */ + +import java.beans.Encoder; +import java.beans.Expression; +import java.beans.PersistenceDelegate; +import java.io.*; +import java.util.ArrayList; +import java.util.HashMap; + +public final class UnitValue implements Serializable +{ + private static final HashMap<String, Integer> UNIT_MAP = new HashMap<String, Integer>(32); + + private static final ArrayList<UnitConverter> CONVERTERS = new ArrayList<UnitConverter>(); + + /** An operation indicating a static value. + */ + public static final int STATIC = 100; + + /** An operation indicating a addition of two sub units. + */ + public static final int ADD = 101; // Must have "sub-unit values" + + /** An operation indicating a subtraction of two sub units + */ + public static final int SUB = 102; // Must have "sub-unit values" + + /** An operation indicating a multiplication of two sub units. + */ + public static final int MUL = 103; // Must have "sub-unit values" + + /** An operation indicating a division of two sub units. + */ + public static final int DIV = 104; // Must have "sub-unit values" + + /** An operation indicating the minimum of two sub units + */ + public static final int MIN = 105; // Must have "sub-unit values" + + /** An operation indicating the maximum of two sub units + */ + public static final int MAX = 106; // Must have "sub-unit values" + + /** An operation indicating the middle value of two sub units + */ + public static final int MID = 107; // Must have "sub-unit values" + + + + + /** A unit indicating pixels. + */ + public static final int PIXEL = 0; + + /** A unit indicating logical horizontal pixels. + */ + public static final int LPX = 1; + + /** A unit indicating logical vertical pixels. + */ + public static final int LPY = 2; + + /** A unit indicating millimeters. + */ + public static final int MM = 3; + + /** A unit indicating centimeters. + */ + public static final int CM = 4; + + /** A unit indicating inches. + */ + public static final int INCH = 5; + + /** A unit indicating percent. + */ + public static final int PERCENT = 6; + + /** A unit indicating points. + */ + public static final int PT = 7; + + /** A unit indicating screen width in pixels. + */ + public static final int SPX = 8; + + /** A unit indicating screen height in pixels. + */ + public static final int SPY = 9; + + /** A unit indicating alignment. + */ + public static final int ALIGN = 12; + + /** A unit indicating minimum size. + */ + public static final int MIN_SIZE = 13; + + /** A unit indicating preferred size. + */ + public static final int PREF_SIZE = 14; + + /** A unit indicating maximum size. + */ + public static final int MAX_SIZE = 15; + + /** A unit indicating botton size. + */ + public static final int BUTTON = 16; + + /** A unit indicating linking to x. + */ + public static final int LINK_X = 18; // First link + + /** A unit indicating linking to y. + */ + public static final int LINK_Y = 19; + + /** A unit indicating linking to width. + */ + public static final int LINK_W = 20; + + /** A unit indicating linking to height. + */ + public static final int LINK_H = 21; + + /** A unit indicating linking to x2. + */ + public static final int LINK_X2 = 22; + + /** A unit indicating linking to y2. + */ + public static final int LINK_Y2 = 23; + + /** A unit indicating linking to x position on screen. + */ + public static final int LINK_XPOS = 24; + + /** A unit indicating linking to y position on screen. + */ + public static final int LINK_YPOS = 25; // Last link + + /** A unit indicating a lookup. + */ + public static final int LOOKUP = 26; + + /** A unit indicating label alignment. + */ + public static final int LABEL_ALIGN = 27; + + private static final int IDENTITY = -1; + + static { + UNIT_MAP.put("px", new Integer(PIXEL)); + UNIT_MAP.put("lpx", new Integer(LPX)); + UNIT_MAP.put("lpy", new Integer(LPY)); + UNIT_MAP.put("%", new Integer(PERCENT)); + UNIT_MAP.put("cm", new Integer(CM)); + UNIT_MAP.put("in", new Integer(INCH)); + UNIT_MAP.put("spx", new Integer(SPX)); + UNIT_MAP.put("spy", new Integer(SPY)); + UNIT_MAP.put("al", new Integer(ALIGN)); + UNIT_MAP.put("mm", new Integer(MM)); + UNIT_MAP.put("pt", new Integer(PT)); + UNIT_MAP.put("min", new Integer(MIN_SIZE)); + UNIT_MAP.put("minimum", new Integer(MIN_SIZE)); + UNIT_MAP.put("p", new Integer(PREF_SIZE)); + UNIT_MAP.put("pref", new Integer(PREF_SIZE)); + UNIT_MAP.put("max", new Integer(MAX_SIZE)); + UNIT_MAP.put("maximum", new Integer(MAX_SIZE)); + UNIT_MAP.put("button", new Integer(BUTTON)); + UNIT_MAP.put("label", new Integer(LABEL_ALIGN)); + } + + static final UnitValue ZERO = new UnitValue(0, null, PIXEL, true, STATIC, null, null, "0px"); + static final UnitValue TOP = new UnitValue(0, null, PERCENT, false, STATIC, null, null, "top"); + static final UnitValue LEADING = new UnitValue(0, null, PERCENT, true, STATIC, null, null, "leading"); + static final UnitValue LEFT = new UnitValue(0, null, PERCENT, true, STATIC, null, null, "left"); + static final UnitValue CENTER = new UnitValue(50, null, PERCENT, true, STATIC, null, null, "center"); + static final UnitValue TRAILING = new UnitValue(100, null, PERCENT, true, STATIC, null, null, "trailing"); + static final UnitValue RIGHT = new UnitValue(100, null, PERCENT, true, STATIC, null, null, "right"); + static final UnitValue BOTTOM = new UnitValue(100, null, PERCENT, false, STATIC, null, null, "bottom"); + static final UnitValue LABEL = new UnitValue(0, null, LABEL_ALIGN, false, STATIC, null, null, "label"); + + static final UnitValue INF = new UnitValue(LayoutUtil.INF, null, PIXEL, true, STATIC, null, null, "inf"); + + static final UnitValue BASELINE_IDENTITY = new UnitValue(0, null, IDENTITY, false, STATIC, null, null, "baseline"); + + private final transient float value; + private final transient int unit; + private final transient int oper; + private final transient String unitStr; + private final transient boolean isHor; + private final transient UnitValue[] subUnits; + + // Pixel + public UnitValue(float value) // If hor/ver does not matter. + { + this(value, null, PIXEL, true, STATIC, null, null, value + "px"); + } + + public UnitValue(float value, int unit, String createString) // If hor/ver does not matter. + { + this(value, null, unit, true, STATIC, null, null, createString); + } + + UnitValue(float value, String unitStr, boolean isHor, int oper, String createString) + { + this(value, unitStr, -1, isHor, oper, null, null, createString); + } + + UnitValue(boolean isHor, int oper, UnitValue sub1, UnitValue sub2, String createString) + { + this(0, "", -1, isHor, oper, sub1, sub2, createString); + if (sub1 == null || sub2 == null) + throw new IllegalArgumentException("Sub units is null!"); + } + + private UnitValue(float value, String unitStr, int unit, boolean isHor, int oper, UnitValue sub1, UnitValue sub2, String createString) + { + if (oper < STATIC || oper > MID) + throw new IllegalArgumentException("Unknown Operation: " + oper); + + if (oper >= ADD && oper <= MID && (sub1 == null || sub2 == null)) + throw new IllegalArgumentException(oper + " Operation may not have null sub-UnitValues."); + + this.value = value; + this.oper = oper; + this.isHor = isHor; + this.unitStr = unitStr; + this.unit = unitStr != null ? parseUnitString() : unit; + this.subUnits = sub1 != null && sub2 != null ? new UnitValue[] {sub1, sub2} : null; + + LayoutUtil.putCCString(this, createString); // "this" escapes!! Safe though. + } + + /** Returns the size in pixels rounded. + * @param refValue The reference value. Normally the size of the parent. For unit {@link #ALIGN} the current size of the component should be sent in. + * @param parent The parent. May be <code>null</code> for testing the validity of the value, but should normally not and are not + * required to return any usable value if <code>null</code>. + * @param comp The component, if any, that the value is for. Might be <code>null</code> if the value is not + * connected to any component. + * @return The size in pixels. + */ + public final int getPixels(float refValue, ContainerWrapper parent, ComponentWrapper comp) + { + return Math.round(getPixelsExact(refValue, parent, comp)); + } + + private static final float[] SCALE = new float[] {25.4f, 2.54f, 1f, 0f, 72f}; + /** Returns the size in pixels. + * @param refValue The reference value. Normally the size of the parent. For unit {@link #ALIGN} the current size of the component should be sent in. + * @param parent The parent. May be <code>null</code> for testing the validity of the value, but should normally not and are not + * required to return any usable value if <code>null</code>. + * @param comp The component, if any, that the value is for. Might be <code>null</code> if the value is not + * connected to any component. + * @return The size in pixels. + */ + public final float getPixelsExact(float refValue, ContainerWrapper parent, ComponentWrapper comp) + { + if (parent == null) + return 1; + + if (oper == STATIC) { + switch (unit) { + case PIXEL: + return value; + + case LPX: + case LPY: + return parent.getPixelUnitFactor(unit == LPX) * value; + + case MM: + case CM: + case INCH: + case PT: + float f = SCALE[unit - MM]; + Float s = isHor ? PlatformDefaults.getHorizontalScaleFactor() : PlatformDefaults.getVerticalScaleFactor(); + if (s != null) + f *= s.floatValue(); + return (isHor ? parent.getHorizontalScreenDPI() : parent.getVerticalScreenDPI()) * value / f; + + case PERCENT: + return value * refValue * 0.01f; + + case SPX: + case SPY: + return (unit == SPX ? parent.getScreenWidth() : parent.getScreenHeight()) * value * 0.01f; + + case ALIGN: + Integer st = LinkHandler.getValue(parent.getLayout(), "visual", isHor ? LinkHandler.X : LinkHandler.Y); + Integer sz = LinkHandler.getValue(parent.getLayout(), "visual", isHor ? LinkHandler.WIDTH : LinkHandler.HEIGHT); + if (st == null || sz == null) + return 0; + return value * (Math.max(0, sz.intValue()) - refValue) + st.intValue(); + + case MIN_SIZE: + if (comp == null) + return 0; + return isHor ? comp.getMinimumWidth() : comp.getMinimumHeight(); + + case PREF_SIZE: + if (comp == null) + return 0; + return isHor ? comp.getPreferredWidth() : comp.getPreferredHeight(); + + case MAX_SIZE: + if (comp == null) + return 0; + return isHor ? comp.getMaximumWidth() : comp.getMaximumHeight(); + + case BUTTON: + return PlatformDefaults.getMinimumButtonWidth().getPixels(refValue, parent, comp); + + case LINK_X: + case LINK_Y: + case LINK_W: + case LINK_H: + case LINK_X2: + case LINK_Y2: + case LINK_XPOS: + case LINK_YPOS: + Integer v = LinkHandler.getValue(parent.getLayout(), getLinkTargetId(), unit - (unit >= LINK_XPOS ? LINK_XPOS : LINK_X)); + if (v == null) + return 0; + + if (unit == LINK_XPOS) + return parent.getScreenLocationX() + v.intValue(); + if (unit == LINK_YPOS) + return parent.getScreenLocationY() + v.intValue(); + + return v.intValue(); + + case LOOKUP: + float res = lookup(refValue, parent, comp); + if (res != UnitConverter.UNABLE) + return res; + + case LABEL_ALIGN: + return PlatformDefaults.getLabelAlignPercentage() * refValue; + + case IDENTITY: + } + throw new IllegalArgumentException("Unknown/illegal unit: " + unit + ", unitStr: " + unitStr); + } + + if (subUnits != null && subUnits.length == 2) { + float r1 = subUnits[0].getPixelsExact(refValue, parent, comp); + float r2 = subUnits[1].getPixelsExact(refValue, parent, comp); + switch (oper) { + case ADD: + return r1 + r2; + case SUB: + return r1 - r2; + case MUL: + return r1 * r2; + case DIV: + return r1 / r2; + case MIN: + return r1 < r2 ? r1 : r2; + case MAX: + return r1 > r2 ? r1 : r2; + case MID: + return (r1 + r2) * 0.5f; + } + } + + throw new IllegalArgumentException("Internal: Unknown Oper: " + oper); + } + + private final float lookup(float refValue, ContainerWrapper parent, ComponentWrapper comp) + { + float res = UnitConverter.UNABLE; + for (int i = CONVERTERS.size() - 1; i >= 0; i--) { + res = CONVERTERS.get(i).convertToPixels(value, unitStr, isHor, refValue, parent, comp); + if (res != UnitConverter.UNABLE) + return res; + } + return PlatformDefaults.convertToPixels(value, unitStr, isHor, refValue, parent, comp); + } + + private final int parseUnitString() + { + int len = unitStr.length(); + if (len == 0) + return isHor ? PlatformDefaults.getDefaultHorizontalUnit() : PlatformDefaults.getDefaultVerticalUnit(); + + Integer u = UNIT_MAP.get(unitStr); + if (u != null) + return u.intValue(); + + if (unitStr.equals("lp")) + return isHor ? LPX : LPY; + + if (unitStr.equals("sp")) + return isHor ? SPX : SPY; + + if (lookup(0, null, null) != UnitConverter.UNABLE) // To test so we can fail fast + return LOOKUP; + + if (unitStr.endsWith(".x")) + return LINK_X; + if (unitStr.endsWith(".y")) + return LINK_Y; + if (unitStr.endsWith(".w") || unitStr.endsWith(".width")) + return LINK_W; + if (unitStr.endsWith(".h") || unitStr.endsWith(".height")) + return LINK_H; + if (unitStr.endsWith(".x2")) + return LINK_X2; + if (unitStr.endsWith(".y2")) + return LINK_Y2; + if (unitStr.endsWith(".xpos")) + return LINK_XPOS; + if (unitStr.endsWith(".ypos")) + return LINK_YPOS; + + throw new IllegalArgumentException("Unknown keyword: " + unitStr); + } + + final boolean isLinked() + { + return unit >= LINK_X && unit <= LINK_YPOS; + } + + final boolean isLinkedDeep() + { + if (subUnits == null) + return isLinked(); + + for (int i = 0; i < subUnits.length; i++) { + if (subUnits[i].isLinkedDeep()) + return true; + } + + return false; + } + + final String getLinkTargetId() + { + return unitStr.substring(0, unitStr.length() - (unit < LINK_X2 ? 2 : (unit > LINK_Y2 ? 5 : 3))); + } + + final UnitValue getSubUnitValue(int i) + { + return subUnits[i]; + } + + final int getSubUnitCount() + { + return subUnits != null ? subUnits.length : 0; + } + + public final UnitValue[] getSubUnits() + { + return subUnits; + } + + public final int getUnit() + { + return unit; + } + + public final String getUnitString() + { + return unitStr; + } + + public final int getOperation() + { + return oper; + } + + public final float getValue() + { + return value; + } + + public final boolean isHorizontal() + { + return isHor; + } + + final public String toString() + { + return getClass().getName() + ". Value=" + value + ", unit=" + unit + ", unitString: " + unitStr + ", oper=" + oper + ", isHor: " + isHor; + } + + /** Returns the creation string for this object. Note that {@link LayoutUtil#setDesignTime(ContainerWrapper, boolean)} must be + * set to <code>true</code> for the creation strings to be stored. + * @return The constraint string or <code>null</code> if none is registered. + */ + public final String getConstraintString() + { + return LayoutUtil.getCCString(this); + } + + public final int hashCode() + { + return (int) (value * 12345) + (oper >>> 5) + unit >>> 17; + } + + /** Adds a global unit converter that can convert from some <code>unit</code> to pixels. + * <p> + * This converter will be asked before the platform converter so the values for it (e.g. "related" and "unrelated") + * can be overridden. It is however not possible to override the built in ones (e.g. "mm", "pixel" or "lp"). + * @param conv The converter. Not <code>null</code>. + */ + public final synchronized static void addGlobalUnitConverter(UnitConverter conv) + { + if (conv == null) + throw new NullPointerException(); + CONVERTERS.add(conv); + } + + /** Removed the converter. + * @param unit The converter. + * @return If there was a converter found and thus removed. + */ + public final synchronized static boolean removeGlobalUnitConverter(String unit) + { + return CONVERTERS.remove(unit); + } + + /** Returns the global converters currently registered. The platform converter will not be in this list. + * @return The converters. Never <code>null</code>. + */ + public final synchronized static UnitConverter[] getGlobalUnitConverters() + { + return CONVERTERS.toArray(new UnitConverter[CONVERTERS.size()]); + } + + /** Returns the current default unit. The default unit is the unit used if no unit is set. E.g. "width 10". + * @return The current default unit. + * @see #PIXEL + * @see #LPX + * @deprecated Use {@link PlatformDefaults#getDefaultHorizontalUnit()} and {@link PlatformDefaults#getDefaultVerticalUnit()} instead. + */ + public final static int getDefaultUnit() + { + return PlatformDefaults.getDefaultHorizontalUnit(); + } + + /** Sets the default unit. The default unit is the unit used if no unit is set. E.g. "width 10". + * @param unit The new default unit. + * @see #PIXEL + * @see #LPX + * @deprecated Use {@link PlatformDefaults#setDefaultHorizontalUnit(int)} and {@link PlatformDefaults#setDefaultVerticalUnit(int)} instead. + */ + public final static void setDefaultUnit(int unit) + { + PlatformDefaults.setDefaultHorizontalUnit(unit); + PlatformDefaults.setDefaultVerticalUnit(unit); + } + + static { + LayoutUtil.setDelegate(UnitValue.class, new PersistenceDelegate() { + protected Expression instantiate(Object oldInstance, Encoder out) + { + UnitValue uv = (UnitValue) oldInstance; + String cs = uv.getConstraintString(); + if (cs == null) + throw new IllegalStateException("Design time must be on to use XML persistence. See LayoutUtil."); + + return new Expression(oldInstance, ConstraintParser.class, "parseUnitValueOrAlign", new Object[] { + uv.getConstraintString(), (uv.isHorizontal() ? Boolean.TRUE : Boolean.FALSE), null + }); + } + }); + } + + // ************************************************ + // Persistence Delegate and Serializable combined. + // ************************************************ + + private static final long serialVersionUID = 1L; + + private Object readResolve() throws ObjectStreamException + { + return LayoutUtil.getSerializedObject(this); + } + + private void writeObject(ObjectOutputStream out) throws IOException + { + if (getClass() == UnitValue.class) + LayoutUtil.writeAsXML(out, this); + } + + private void readObject(ObjectInputStream in) throws IOException, ClassNotFoundException + { + LayoutUtil.setSerializedObject(this, LayoutUtil.readAsXML(in)); + } }
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