/**
* Copyright (C) 2006 Aelitis, All Rights Reserved.
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version 2
* of the License, or (at your option) any later version.
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*
* AELITIS, SAS au capital de 63.529,40 euros
* 8 Allee Lenotre, La Grille Royale, 78600 Le Mesnil le Roi, France.
*
*/
package com.aelitis.azureus.ui.swt.skin;
import java.text.NumberFormat;
import org.eclipse.swt.SWT;
import org.eclipse.swt.graphics.Rectangle;
import org.eclipse.swt.layout.FormData;
import org.eclipse.swt.widgets.*;
import org.gudy.azureus2.core3.config.COConfigurationManager;
import org.gudy.azureus2.core3.util.Debug;
/**
* @author TuxPaper
* @created Oct 18, 2006
*
*/
public class SWTSkinObjectSash
extends SWTSkinObjectBasic
{
private static final boolean FASTDRAG = false;
protected String sControlBefore;
protected String sControlAfter;
public SWTSkinObjectSash(final SWTSkin skin, SWTSkinProperties properties,
final String sID, String sConfigID, String[] typeParams,
SWTSkinObject parent, final boolean bVertical) {
super(skin, properties, sID, sConfigID, "sash", parent);
int style = bVertical ? SWT.VERTICAL : SWT.HORIZONTAL;
if (typeParams.length > 2) {
sControlBefore = typeParams[1];
sControlAfter = typeParams[2];
}
final Composite createOn;
if (parent == null) {
createOn = skin.getShell();
} else {
createOn = (Composite) parent.getControl();
}
if (createOn == null || createOn.isDisposed()) {
Debug.out("Can not create " + sID + " because parent is null or disposed");
return;
}
final Sash sash = new Sash(createOn, style);
int splitAt = COConfigurationManager.getIntParameter("v3." + sID
+ ".SplitAt", -1);
if (splitAt != -1 && false) {
double pct = splitAt / 10000.0;
sash.setData("PCT", new Double(pct));
} else {
String sPos = properties.getStringValue(sConfigID + ".startpos");
if (sPos != null) {
try {
long l = NumberFormat.getInstance().parse(sPos).longValue();
if (sPos.endsWith("%")) {
double pct = (double) (100 - l) / 100;
sash.setData("PCT", new Double(pct));
} else {
sash.setData("PX", new Long(l));
}
} catch (Exception e) {
Debug.out(e);
}
}
}
final Composite parentComposite = createOn;
Listener l = new Listener() {
private boolean skipResize = false;
public void handleEvent(Event e) {
Composite below = null;
SWTSkinObject skinObject = skin.getSkinObjectByID(sControlAfter);
if (skinObject != null) {
below = (Composite) skinObject.getControl();
}
if (below == null) {
return;
}
int belowMin = skinObject.getProperties().getIntValue(
skinObject.getConfigID() + (bVertical ? ".minwidth" : ".minheight"),
0);
Composite above = null;
int aboveMin = 0;
skinObject = skin.getSkinObjectByID(sControlBefore);
if (skinObject != null) {
above = (Composite) skinObject.getControl();
aboveMin = skinObject.getProperties().getIntValue(
skinObject.getConfigID()
+ (bVertical ? ".minwidth" : ".minheight"), 0);
}
if (e.type == SWT.Resize) {
if (skipResize) {
return;
}
Double l = (Double) sash.getData("PCT");
Long px = (Long) sash.getData("PX");
if (l != null) {
setPercent(l, sash, above, below, bVertical, parentComposite,
aboveMin, belowMin);
} else if (px != null) {
int i = (bVertical) ? createOn.getSize().x : createOn.getSize().y;
double pct = 1 - (px.doubleValue() / i);
FormData belowData = (FormData) below.getLayoutData();
if (bVertical) {
int parentWidth = parentComposite.getBounds().width;
belowData.width = (int) (parentWidth * pct);
if (parentWidth - belowData.width < aboveMin) {
belowData.width = parentWidth - aboveMin;
}
} else {
int parentHeight = parentComposite.getBounds().height;
belowData.height = (int) (parentHeight * pct);
if (parentHeight - belowData.width < aboveMin) {
belowData.height = parentHeight - aboveMin;
}
}
sash.setData("PCT", new Double(pct));
// layout in resize is not needed (and causes browser widget to blink)
}
} else if (e.type == SWT.Selection) {
skipResize = true;
if (FASTDRAG && e.detail == SWT.DRAG) {
return;
}
Rectangle area = parentComposite.getClientArea();
FormData belowData = (FormData) below.getLayoutData();
if (bVertical) {
belowData.width = area.width - (e.x + e.width);
if (area.width - belowData.width < aboveMin) {
belowData.width = area.width - aboveMin;
} else if (belowData.width < belowMin) {
belowData.width = belowMin;
e.doit = false;
}
} else {
belowData.height = area.height - (e.y + e.height);
if (area.height - belowData.height < aboveMin) {
belowData.height = area.height - aboveMin;
} else if (belowData.height < belowMin) {
belowData.height = belowMin;
e.doit = false;
}
}
parentComposite.layout(true);
double d;
if (bVertical) {
d = (double) below.getBounds().width
/ parentComposite.getBounds().width;
} else {
d = (double) below.getBounds().height
/ parentComposite.getBounds().height;
}
Double l = new Double(d);
l = ensureVisibilityStates(l, above, below, bVertical);
sash.setData("PCT", l);
if (e.detail != SWT.DRAG) {
COConfigurationManager.setParameter("v3." + sID + ".SplitAt",
(int) (l.doubleValue() * 10000));
}
skipResize = false;
}
}
};
createOn.addListener(SWT.Resize, l);
sash.addListener(SWT.Selection, l);
String sDblClick = properties.getStringValue(sConfigID + ".dblclick");
if (sDblClick != null) {
sDblClick = sDblClick.toLowerCase();
final int dir = (sDblClick.equals("left")) ? SWT.LEFT : SWT.RIGHT;
sash.addListener(SWT.MouseDoubleClick, new Listener() {
// @see org.eclipse.swt.widgets.Listener#handleEvent(org.eclipse.swt.widgets.Event)
public void handleEvent(Event e) {
Composite below = null;
SWTSkinObject skinObject = skin.getSkinObjectByID(sControlAfter);
if (skinObject != null) {
below = (Composite) skinObject.getControl();
}
if (below == null) {
return;
}
int belowMin = skinObject.getProperties().getIntValue(
skinObject.getConfigID()
+ (bVertical ? ".minwidth" : ".minheight"), 0);
Composite above = null;
skinObject = skin.getSkinObjectByID(sControlBefore);
int aboveMin = 0;
if (skinObject != null) {
above = (Composite) skinObject.getControl();
aboveMin = skinObject.getProperties().getIntValue(
bVertical ? "minwidth" : "minheight", 0);
}
Double oldPCT = (Double) sash.getData("PCT");
if (oldPCT == null) {
oldPCT = new Double(-1);
}
Double pct;
if (dir == SWT.LEFT) {
if (oldPCT.doubleValue() == 1) {
pct = new Double(0);
} else {
pct = new Double(1);
}
} else {
if (oldPCT.doubleValue() == 0) {
pct = new Double(1);
} else {
pct = new Double(0);
}
}
setPercent(pct, sash, above, below, bVertical, parentComposite,
aboveMin, belowMin);
below.getParent().layout();
}
});
} // dblclick
setControl(sash);
}
/**
* @param below
* @param bVertical
* @param parentComposite
* @param sash
* @param above
*
*/
protected void setPercent(Double l, Control sash, Composite above,
Composite below, boolean bVertical, Control parentComposite,
int minAbove, int belowMin) {
FormData belowData = (FormData) below.getLayoutData();
if (bVertical) {
int parentWidth = parentComposite.getBounds().width;
belowData.width = (int) ((parentWidth - (sash.getSize().x / 2)) * l.doubleValue());
if (parentWidth - belowData.width < minAbove) {
belowData.width = parentWidth - minAbove;
} else if (belowData.width < belowMin) {
belowData.width = belowMin;
}
} else {
int parentHeight = parentComposite.getBounds().height;
belowData.height = (int) ((parentHeight - (sash.getSize().y / 2)) * l.doubleValue());
if (parentHeight - belowData.height < minAbove && parentHeight >= minAbove) {
belowData.height = parentHeight - minAbove;
} else if (belowData.height < belowMin) {
belowData.height = belowMin;
}
}
below.getParent().layout();
l = ensureVisibilityStates(l, above, below, bVertical);
sash.setData("PCT", l);
COConfigurationManager.setParameter("v3." + sID + ".SplitAt",
(int) (l.doubleValue() * 10000));
}
private Double ensureVisibilityStates(Double l, Composite above,
Composite below, boolean bVertical) {
Double ret = l;
int sizeBelow = bVertical ? below.getSize().x : below.getSize().y;
int sizeAbove = bVertical ? above.getSize().x : above.getSize().y;
if ((l.doubleValue() == 0.0 || sizeBelow <= 1) && below != null
&& below.getVisible()) {
below.setVisible(false);
below.setData("SashSetVisibility", new Boolean(true));
} else if (below != null && !below.isVisible()
&& (below.getData("SashSetVisibility") != null)) {
below.setVisible(true);
below.setData("SashSetVisibility", null);
}
if ((l.doubleValue() == 1.0 || sizeAbove <= 1) && above != null
&& above.getVisible()) {
above.setVisible(false);
above.setData("SashSetVisibility", new Boolean(true));
} else if (above != null && !above.isVisible()
&& (above.getData("SashSetVisibility") != null)) {
above.setVisible(true);
above.setData("SashSetVisibility", null);
}
return ret;
}
}
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