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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 java.util.List;
import com.jogamp.graph.curve.OutlineShape;
import com.jogamp.graph.curve.Region;
import com.jogamp.graph.curve.opengl.GLRegion;
import com.jogamp.graph.font.Font;
import com.jogamp.graph.font.Font.Glyph;
import com.jogamp.graph.ui.GraphShape;
import com.jogamp.math.Vec3f;
import com.jogamp.math.geom.AABBox;
import com.jogamp.math.geom.plane.AffineTransform;
import com.jogamp.opengl.GL2ES2;
import com.jogamp.opengl.GLProfile;
import com.jogamp.opengl.util.texture.TextureSequence;
/**
* Representing a single {@link Font.Glyph} as a {@link GraphShape}
*
* A GlyphShape is represented in font em-size [0..1] unscaled w/ bottom-left origin at 0/0
* while preserving an intended position, see {@link #getOrigPos()}.
*
* Scaling, if any, should be applied via {@link #setScale(float, float, float)} etc.
*/
public class GlyphShape extends GraphShape {
private final Glyph glyph;
private final int regionVertCount;
private final int regionIdxCount;
private final Vec3f origPos;
/**
* Creates a new GlyphShape
* @param renderModes Graph's {@link Region} render modes, see {@link GLRegion#create(GLProfile, int, TextureSequence) create(..)}.
* @param glyph the {@link Font.Glyph}
* @param x the intended unscaled X position of this Glyph, e.g. if part of a string - otherwise use zero.
* @param y the intended unscaled Y position of this Glyph, e.g. if part of a string - otherwise use zero.
* @see #processString(List, int, Font, String)
*/
public GlyphShape(final int renderModes, final Glyph glyph, final float x, final float y) {
super(renderModes);
this.glyph = glyph;
this.origPos = new Vec3f(x, y, 0f);
if( glyph.isNonContour() ) {
setVisible(false);
}
final int[/*2*/] vertIndexCount = Region.countOutlineShape(glyph.getShape(), new int[2]);
regionVertCount = vertIndexCount[0];
regionIdxCount = vertIndexCount[1];
}
/**
* Creates a new GlyphShape
* @param renderModes Graph's {@link Region} render modes, see {@link GLRegion#create(GLProfile, int, TextureSequence) create(..)}.
* @param glyph the {@link Font.Glyph}
* @param pos the intended unscaled Vec3f position of this Glyph, e.g. if part of a string - otherwise use zero.
* @see #processString(List, int, Font, String)
*/
public GlyphShape(final int renderModes, final Glyph glyph, final Vec3f pos) {
this(renderModes, glyph, pos.x(), pos.y());
}
/**
* Creates a new GlyphShape
* @param renderModes Graph's {@link Region} render modes, see {@link GLRegion#create(GLProfile, int, TextureSequence) create(..)}.
* @param font the {@link Font} to lookup the symbol's {@link Font.Glyph}
* @param codepoint the represented character unicode `codepoint` symbol
* @param x the intended unscaled X position of this Glyph, e.g. if part of a string - otherwise use zero.
* @param y the intended unscaled Y position of this Glyph, e.g. if part of a string - otherwise use zero.
*/
public GlyphShape(final int renderModes, final Font font, final char codepoint, final float x, final float y) {
this(renderModes, font.getGlyph( codepoint ), x, y);
}
/** GlyphShape copy-ctor */
public GlyphShape(final GlyphShape orig) {
this(orig.renderModes, orig.glyph, orig.origPos);
}
/**
* Returns the {@link Font.Glyph} to be rendered.
*/
public Glyph getGlyph() {
return glyph;
}
/**
* Returns the {@link Font} used to render the text
*/
public Font getFont() {
return glyph.getFont();
}
/**
* Returns the unscaled original position of this glyph, e.g. if part of a string, otherwise zero.
*
* Method borrows and returns the internal instance.
*
* @see #processString(List, int, Font, String)
*/
public Vec3f getOrigPos() { return origPos; }
/** Returns {@link Font#getLineHeight()}. */
public float getLineHeight() {
return glyph.getFont().getLineHeight();
}
/**
* Process the given text resulting in a list of {@link GlyphShape}s with stored original position {@link #getOrigX()} and {@link #getOrigY()} each at font em-size [0..1].
* @param res storage for resulting {@link GlyphShape}s.
* @param renderModes Graph's {@link Region} render modes, see {@link GLRegion#create(GLProfile, int, TextureSequence) create(..)}.
* @param font {@link Font} used
* @param text text to be represented
* @return the bounding box of the given string by taking each glyph's font em-sized [0..1] OutlineShape into account.
* @see #getOrigX()
* @see #getOrigY()
*/
public static final AABBox processString(final List<GlyphShape> res, final int renderModes,
final Font font, final CharSequence text)
{
final Font.GlyphVisitor fgv = new Font.GlyphVisitor() {
@Override
public void visit(final Glyph glyph, final AffineTransform t) {
if( !glyph.isNonContour() ) {
res.add( new GlyphShape(renderModes, glyph, t.getTranslateX(), t.getTranslateY()) );
}
}
};
return font.processString(fgv, null, text, new AffineTransform(), new AffineTransform());
}
@Override
protected void addShapeToRegion(final GLProfile glp, final GL2ES2 gl) {
final OutlineShape shape = glyph.getShape();
box.reset();
if( null != shape ) {
final AABBox sbox = shape.getBounds();
final AffineTransform tmp = new AffineTransform();
// Enforce bottom-left origin @ 0/0 for good drag-zoom experience,
// but keep the underline (decline) intact!
tmp.setToTranslation(-sbox.getMinX(), -sbox.getMinY() + glyph.getBounds().getMinY());
shape.setSharpness(oshapeSharpness);
resetGLRegion(glp, gl, null, regionVertCount, regionIdxCount);
region.addOutlineShape(shape, tmp, rgbaColor);
box.resize(tmp.transform(sbox, new AABBox()));
setRotationPivot( box.getCenter() );
} else {
// needs a dummy 'region'
resetGLRegion(glp, gl, null, regionVertCount, regionIdxCount);
}
}
@Override
public String getSubString() {
return super.getSubString()+", origPos " + origPos.x() + " / " + origPos.y() + ", cp 0x" + Integer.toHexString(glyph.getCodepoint());
}
}
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