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/**
* Copyright 2010-2023 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.shapes;
import com.jogamp.graph.curve.OutlineShape;
import com.jogamp.graph.curve.Region;
import com.jogamp.graph.curve.opengl.GLRegion;
import com.jogamp.graph.ui.GraphShape;
import com.jogamp.graph.ui.Shape;
import com.jogamp.opengl.GL2ES2;
import com.jogamp.opengl.GLProfile;
import com.jogamp.opengl.util.texture.TextureSequence;
/**
* An abstract GraphUI filled base button {@link GraphShape},
* usually used as a backdrop or base shape for more informative button types.
* <p>
* GraphUI is GPU based and resolution independent.
* </p>
* <p>
* This button is rendered with a round oval shape {@link #ROUND_CORNER by default},
* but can be set to any roundness or {@link #PERP_CORNER rectangular shape} via {#link {@link #setCorner(float)} or {@link #setPerp()}.
* </p>
*/
public class BaseButton extends GraphShape {
/** {@link #setCorner(float) Round corner}, value {@value}. This is the default value. */
public static final float ROUND_CORNER = 1f;
/** {@link #setCorner(float) Perpendicular corner} for a rectangular shape, value {@value}. */
public static final float PERP_CORNER = 0f;
protected float width;
protected float height;
protected float corner = ROUND_CORNER;
/**
* Create a base button Graph based {@link GLRegion} UI {@link Shape} with a {@link #ROUND_CORNER}.
* <p>
* Call {#link {@link #setCorner(float)} or {@link #setPerp()} to modify the corner shape.
* </p>
* @param renderModes Graph's {@link Region} render modes, see {@link GLRegion#create(GLProfile, int, TextureSequence) create(..)}.
* @param width
* @param height
*/
public BaseButton(final int renderModes, final float width, final float height) {
super(renderModes);
this.width = width;
this.height = height;
}
public final float getWidth() { return width; }
public final float getHeight() { return height; }
public final float getCorner() { return corner; }
/**
* Set corner size with range [0.01 .. 1.00] for round corners
* or `zero` for perpendicular corners.
* <p>
* Default is {@link #ROUND_CORNER round corner},
* alternative a {@link #PERP_CORNER perpendicular corner} for a rectangular shape is available.
* </p>
* @param corner corner size with range [0.01 .. 1.00 ] for round corners or `zero` for perpendicular corners.
* @return this instance for chaining
* @see #ROUND_CORNER
* @see #PERP_CORNER
* @see #setPerp()
*/
public BaseButton setCorner(final float corner) {
if( corner > 1.0f ){
this.corner = ROUND_CORNER;
} else if( corner < 0.01f ){
this.corner = PERP_CORNER;
} else {
this.corner = corner;
}
markShapeDirty();
return this;
}
/**
* Sets a {@link #PERP_CORNER perpendicular} {@link #setCorner(float) corner}.
* @return this instance for chaining
* @see #setCorner(float)
*/
public BaseButton setPerp() {
this.corner = PERP_CORNER;
markShapeDirty();
return this;
}
public BaseButton setSize(final float width, final float height) {
this.width = width;
this.height = height;
markShapeDirty();
return this;
}
@Override
protected void addShapeToRegion(final GLProfile glp, final GL2ES2 gl) {
final OutlineShape shape = createBaseShape(0f);
resetGLRegion(glp, gl, null, shape);
region.addOutlineShape(shape, null, rgbaColor);
box.resize(shape.getBounds());
setRotationPivot( box.getCenter() );
}
protected OutlineShape createBaseShape(final float zOffset) {
final OutlineShape shape = new OutlineShape();
if(corner == 0.0f) {
createSharpOutline(shape, zOffset);
} else {
createCurvedOutline(shape, zOffset);
}
shape.setIsQuadraticNurbs();
shape.setSharpness(oshapeSharpness);
if( DEBUG_DRAW ) {
System.err.println("GraphShape.RoundButton: Shape: "+shape+", "+box);
}
return shape;
}
protected void createSharpOutline(final OutlineShape shape, final float zOffset) {
final float tw = getWidth();
final float th = getHeight();
final float minX = 0;
final float minY = 0;
final float minZ = zOffset;
shape.addVertex(minX, minY, minZ, true);
shape.addVertex(minX+tw, minY, minZ, true);
shape.addVertex(minX+tw, minY + th, minZ, true);
shape.addVertex(minX, minY + th, minZ, true);
shape.closeLastOutline(true);
}
protected void createCurvedOutline(final OutlineShape shape, final float zOffset) {
final float tw = getWidth();
final float th = getHeight();
final float dC = 0.5f*corner*Math.min(tw, th);
final float minX = 0;
final float minY = 0;
final float minZ = zOffset;
shape.addVertex(minX, minY + dC, minZ, true);
shape.addVertex(minX, minY, minZ, false);
shape.addVertex(minX + dC, minY, minZ, true);
shape.addVertex(minX + tw - dC, minY, minZ, true);
shape.addVertex(minX + tw, minY, minZ, false);
shape.addVertex(minX + tw, minY + dC, minZ, true);
shape.addVertex(minX + tw, minY + th- dC, minZ, true);
shape.addVertex(minX + tw, minY + th, minZ, false);
shape.addVertex(minX + tw - dC, minY + th, minZ, true);
shape.addVertex(minX + dC, minY + th, minZ, true);
shape.addVertex(minX, minY + th, minZ, false);
shape.addVertex(minX, minY + th - dC, minZ, true);
shape.closeLastOutline(true);
}
@Override
public String getSubString() {
return super.getSubString()+", dim "+getWidth() + " x " + getHeight() + ", corner " + corner;
}
}
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