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Diffstat (limited to 'src/graphui/classes/com/jogamp/graph/ui/layout/BoxLayout.java')
| -rw-r--r-- | src/graphui/classes/com/jogamp/graph/ui/layout/BoxLayout.java | 122 |
1 files changed, 122 insertions, 0 deletions
diff --git a/src/graphui/classes/com/jogamp/graph/ui/layout/BoxLayout.java b/src/graphui/classes/com/jogamp/graph/ui/layout/BoxLayout.java new file mode 100644 index 000000000..6f6e610f6 --- /dev/null +++ b/src/graphui/classes/com/jogamp/graph/ui/layout/BoxLayout.java @@ -0,0 +1,122 @@ +/** + * 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+"]"; + } +} + |