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/**
* Copyright 2023 JogAmp Community. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without modification, are
* permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright notice, this list of
* conditions and the following disclaimer.
*
* 2. 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.
*
* THIS SOFTWARE IS PROVIDED BY JogAmp Community ``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 JogAmp Community 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.
*
* The views and conclusions contained in the software and documentation are those of the
* authors and should not be interpreted as representing official policies, either expressed
* or implied, of JogAmp Community.
*/
package com.jogamp.graph.ui.layout;
import java.util.List;
import com.jogamp.graph.ui.Group;
import com.jogamp.graph.ui.Shape;
import com.jogamp.opengl.math.FloatUtil;
import com.jogamp.opengl.math.geom.AABBox;
import com.jogamp.opengl.util.PMVMatrix;
/**
* GraphUI Stack {@link Group.Layout}.
* <p>
* A stack of {@link Shape}s
* - size kept unscaled
* - position depends on {@Link Padding} and {@link Margin}
* - *cell* size can be set
* </p>
*/
public class BoxLayout implements Group.Layout {
private final float cellWidth, cellHeight;
private final Margin margin;
private final Padding padding;
private final float borderThickness;
public BoxLayout(final Padding padding) {
this(0f, 0f, new Margin(), padding);
}
public BoxLayout(final float width, final float height, final Margin margin) {
this(width, height, margin, new Padding());
}
public BoxLayout(final float width, final float height, final Margin margin, final Padding padding) {
this.cellWidth = Math.max(0f, width);
this.cellHeight = Math.max(0f, height);
this.margin = margin;
this.padding = padding;
this.borderThickness = 0f;
}
public Padding getPadding() { return padding; }
public Margin getMargin() { return margin; }
@Override
public void layout(final Group g, final AABBox box, final PMVMatrix pmv) {
final boolean hasCellWidth = !FloatUtil.isZero(cellWidth);
final boolean hasCellHeight = !FloatUtil.isZero(cellHeight);
final List<Shape> shapes = g.getShapes();
final AABBox sbox = new AABBox();
for(int i=0; i < shapes.size(); ++i) {
final Shape s = shapes.get(i);
pmv.glPushMatrix();
s.setTransform(pmv);
s.getBounds().transformMv(pmv, sbox);
pmv.glPopMatrix();
// adjust size and position (centered)
final float paddedWidth = sbox.getWidth() + padding.width();
final float paddedHeight = sbox.getHeight() + padding.height();
final float marginedWidth = paddedWidth + margin.width();
final float marginedHeight = paddedHeight + margin.height();
final float cellWidth2 = hasCellWidth ? cellWidth : marginedWidth;
final float cellHeight2 = hasCellHeight ? cellHeight : marginedHeight;
final float x, y;
if( margin.isCenteredHoriz() || hasCellWidth && sbox.getWidth() + padding.width() + margin.width() > cellWidth2 ) {
x = 0;
} else {
x = margin.left + padding.left;
}
if( margin.isCenteredVert() || hasCellHeight && sbox.getHeight() + padding.height() + margin.height() > cellHeight2 ) {
y = 0;
} else {
y = margin.bottom + padding.bottom;
}
float dxh = 0, dyh = 0;
if( margin.isCenteredHoriz() ) {
dxh += 0.5f * ( cellWidth2 - paddedWidth ); // actual horiz-centered
}
if( margin.isCenteredVert() ) {
dyh += 0.5f * ( cellHeight2 - paddedHeight ); // actual vert-centered
}
System.err.println("["+i+"].m: "+x+" / "+y+" + "+dxh+" / "+dyh+", p "+paddedWidth+" x "+paddedHeight+", sz "+cellWidth2+" x "+cellHeight2+", box "+box.getWidth()+" x "+box.getHeight());
s.moveTo( x + dxh, y + dyh, 0f ); // center the scaled artifact
s.move( sbox.getLow().mul(-1f) ); // remove the bottom-left delta
box.resize( x + cellWidth2 + padding.right, y + cellHeight2 + padding.top, 0);
box.resize( x - padding.left, y - padding.bottom, 0);
System.err.println("["+i+"].x: "+x+" / "+y+" + "+dxh+" / "+dyh+" -> "+s.getPosition()+", p "+paddedWidth+" x "+paddedHeight+", sz "+cellWidth2+" x "+cellHeight2+", box "+box.getWidth()+" x "+box.getHeight());
}
}
@Override
public String toString() {
return "Box[cell["+cellWidth+" x "+cellHeight+"], "+margin+", "+padding+"]";
}
}
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