* GraphUI is GPU based and resolution independent. *
** This button is rendered with a round oval shape. * To render it rectangular, {@link #setCorner(float)} to zero. *
*/ public class Button extends BaseButton { /** {@value} */ public static final float DEFAULT_SPACING_X = 0.20f; /** {@value} */ public static final float DEFAULT_SPACING_Y = 0.46f; /** * Default {@link #setLabelZOffset(float) Z-axis offset}, * using the smallest resolvable Z separation rounded value {@value} at 16-bits depth buffer, -1 z-distance and 0.1 z-near, * used to separate the {@link BaseButton} from the {@link Label}. ** {@link FloatUtil#getZBufferEpsilon(int, float, float)} *
* 1.5256461E-4 = 16 zBits, -0.2 zDist, 0.1 zNear
* 6.1033297E-6 = 16 zBits, -1.0 zDist, 0.1 zNear
*
*
*/
public static final float DEFAULT_LABEL_ZOFFSET = 0.000153f; // 0.00015256461 = 16 zBits, -1 zDist, 0.1 zNear, i.e. FloatUtil.getZBufferEpsilon(16, -1f, 0.1f)
private float labelZOffset;
private final Label0 labelOff, labelOn;
private volatile Label0 labelNow;
private final Vec2f spacing = new Vec2f(DEFAULT_SPACING_X, DEFAULT_SPACING_Y);
private final Vec2f fixedLabelSize = new Vec2f(0, 0);
/**
* Create a text labeled button Graph based {@link GLRegion} UI {@link Shape}.
* * Sets the {@link #setLabelZOffset(float) Z-axis offset} to * a default smallest resolvable Z separation rounded value {@code 0.000153} at 16-bits depth buffer, -1 z-distance and 0.1 z-near, * used to separate the {@link BaseButton} from the {@link Label}. *
* @param renderModes Graph's {@link Region} render modes, see {@link GLRegion#create(GLProfile, int, TextureSequence) create(..)}. * @param labelFont {@link Font} for the label * @param labelText the label text * @param width width of the button * @param height height of the button * @see #Button(int, Font, CharSequence, float, float, float) */ public Button(final int renderModes, final Font labelFont, final CharSequence labelText, final float width, final float height) { this(renderModes, labelFont, labelText, null, width, height, DEFAULT_LABEL_ZOFFSET); } /** * Create a text labeled button Graph based {@link GLRegion} UI {@link Shape}. * @param renderModes Graph's {@link Region} render modes, see {@link GLRegion#create(GLProfile, int, TextureSequence) create(..)}. * @param labelFont {@link Font} for the label * @param labelText the label text * @param width width of the button * @param height height of the button * @param zOffset the Z-axis offset, used to separate the {@link BaseButton} from the {@link Label} * @see FloatUtil#getZBufferEpsilon(int, float, float) */ public Button(final int renderModes, final Font labelFont, final CharSequence labelText, final float width, final float height, final float zOffset) { this(renderModes, labelFont, labelText, null, width, height, zOffset); } /** * Create a text labeled button Graph based {@link GLRegion} UI {@link Shape}. ** If {@code labelTextOn} is not {@code null}, constructor enables {@link #setToggleable(boolean) toggle-able} mode * to automatically switch the labels depending on {@Link #isToggleOn()}. *
* @param renderModes Graph's {@link Region} render modes, see {@link GLRegion#create(GLProfile, int, TextureSequence) create(..)}. * @param labelFont {@link Font} for the label * @param labelTextOff the label text of the toggle-off state (current at creation), see {@link #isToggleOn()} * @param labelTextOn optional label text of the toggle-on state, see {@link #isToggleOn()}. If not {@code null}, enables {@link #setToggleable(boolean) toggle-able} mode. * @param width width of the button * @param height height of the button * @param zOffset the Z-axis offset, used to separate the {@link BaseButton} from the {@link Label} * @see FloatUtil#getZBufferEpsilon(int, float, float) */ public Button(final int renderModes, final Font labelFont, final CharSequence labelTextOff, final CharSequence labelTextOn, final float width, final float height, final float zOffset) { super(renderModes | Region.COLORCHANNEL_RENDERING_BIT, width, height); this.labelZOffset = zOffset; this.labelOff = new Label0(labelFont, labelTextOff, new Vec4f( 1.66f, 1.66f, 1.66f, 1.0f )); // 0.60 * 1.66 ~= 1.0 this.labelNow = this.labelOff; if( null != labelTextOn ) { this.labelOn = new Label0(labelFont, labelTextOn, new Vec4f( 1.66f, 1.66f, 1.66f, 1.0f )); // 0.60 * 1.66 ~= 1.0 this.setToggleable(true); } else { this.labelOn = null; } } @Override protected void toggleNotify(final boolean on) { int i=0; if( null != labelOn ) { if( on ) { labelNow = labelOn; i = 1; } else { labelNow = labelOff; i = -1; } markShapeDirty(); } } /** Returns the label {@link Font}. */ public Font getFont() { return labelNow.getFont(); } /** Returns the text of the current label. */ public CharSequence getText() { return labelNow.getText(); } @Override public void draw(final GL2ES2 gl, final RegionRenderer renderer, final int[] sampleCount) { // No need to setup an poly offset for z-fighting, using one region now // Setup poly offset for z-fighting // gl.glEnable(GL.GL_POLYGON_OFFSET_FILL); // gl.glPolygonOffset(0f, 1f); super.draw(gl, renderer, sampleCount); // gl.glDisable(GL.GL_POLYGON_OFFSET_FILL); } @Override protected void addShapeToRegion(final GLProfile glp, final GL2ES2 gl) { final AffineTransform tempT1 = new AffineTransform(); final AffineTransform tempT2 = new AffineTransform(); final AffineTransform tempT3 = new AffineTransform(); final OutlineShape shape = createBaseShape( FloatUtil.isZero(labelZOffset) ? 0f : -labelZOffset ); box.resize(shape.getBounds()); setRotationPivot( box.getCenter() ); // Sum Region buffer size of base-shape + text final int[/*2*/] vertIndexCount = Region.countOutlineShape(shape, new int[2]); TextRegionUtil.countStringRegion(labelNow.getFont(), labelNow.getText(), vertIndexCount); resetGLRegion(glp, gl, null, vertIndexCount[0], vertIndexCount[1]); region.addOutlineShape(shape, null, rgbaColor); // Precompute text-box size .. guessing pixelSize final AABBox lbox0_em = labelNow.getFont().getGlyphBounds(labelNow.getText(), tempT1, tempT2); final float lw = box.getWidth() * ( 1f - spacing.x() ) ; final float lsx = lw / Math.max(fixedLabelSize.x(), lbox0_em.getWidth()); final float lh = box.getHeight() * ( 1f - spacing.y() ) ; final float lsy = lh / Math.max(fixedLabelSize.y(), lbox0_em.getHeight()); final float lScale = lsx < lsy ? lsx : lsy; // Setting left-corner transform using text-box in font em-size [0..1] final AABBox lbox0_s = new AABBox(lbox0_em).scale2(lScale); // Center text .. (share same center w/ button) final Vec3f lctr = lbox0_s.getCenter(); final Vec3f ctr = box.getCenter(); final Vec2f ltxy = new Vec2f(ctr.x() - lctr.x(), ctr.y() - lctr.y() ); if( DEBUG_DRAW ) { System.err.println("Button: dim "+width+" x "+height+", spacing "+spacing+", fixedLabelSize "+fixedLabelSize); System.err.println("Button: text0_em "+lbox0_em+" em, "+labelNow.getText()); System.err.println("Button: shape "+box); System.err.println("Button: text-space "+lw+" x "+lh); System.err.println("Button: lscale "+lsx+" x "+lsy+" -> "+lScale); System.err.printf ("Button: text0_s %s%n", lbox0_s); System.err.printf ("Button: ltxy %s, %f / %f%n", ltxy, ltxy.x() * lScale, ltxy.y() * lScale); final float x0 = ( box.getWidth() - lbox0_s.getWidth() ) * 0.5f; final float y0 = ( box.getHeight() - lbox0_s.getHeight() ) * 0.5f; final AABBox lbox3 = new AABBox(new Vec3f(x0, y0, 0), new Vec3f(x0 + lbox0_s.getWidth(), y0 + lbox0_s.getHeight(), 0)); addRectangle(region, this.oshapeSharpness, lbox3, null, 0.0001f, new Vec4f(0, 0, 0, 1)); System.err.printf("Button.X: lbox3 %s%n", lbox3); } final AABBox lbox2 = labelNow.addShapeToRegion(lScale, region, ltxy, tempT1, tempT2, tempT3); box.resize(lbox2); if( DEBUG_DRAW ) { System.err.printf("Button.X: lbox2 %s%n", lbox2); System.err.printf("Button.X: shape %s%n", box); } } public float getLabelZOffset() { return labelZOffset; } /** * Set the Z-axis offset to the given value, * used to separate the {@link BaseButton} from the {@link Label}. * @param v the zoffset * @return this instance for chaining * @see FloatUtil#getZBufferEpsilon(int, float, float) */ public Button setLabelZOffset(final float v) { labelZOffset = v; markShapeDirty(); return this; } /** * Set the Z-axis offset to the smallest resolvable Z separation at the given range, * used to separate the {@link BaseButton} from the {@link Label}. * @param zBits number of bits of Z precision, i.e. z-buffer depth * @param zDist distance from the eye to the object * @param zNear distance from eye to near clip plane * @return this instance for chaining * @see FloatUtil#getZBufferEpsilon(int, float, float) * @see Scene#getZEpsilon(int, com.jogamp.graph.ui.Scene.PMVMatrixSetup) */ public Button setLabelZOffset(final int zBits, final float zDist, final float zNear) { return setLabelZOffset( FloatUtil.getZBufferEpsilon(zBits, zDist, zNear) ); } /** Returns the current fixed label font size, see {@Link #setFixedLabelSize(Vec2f)} and {@link #setSpacing(Vec2f, Vec2f)}. */ public final Vec2f getFixedLabelSize() { return fixedLabelSize; } /** * Sets fixed label font size clipped to range [0 .. 1], defaults to {@code 0, 0}. ** Use {@code w=0, h=1} when using single symbols from fixed sized symbol fonts! * Use {@link #setSpacing(Vec2f, Vec2f)} to also set spacing. *
** The fixed label font size is used as the denominator when scaling.{@code max(fixedLabelSize, fontLabelSize)}, * hence reasonable values are either {@code 1} to enable using the given font-size * for the axis or {@code 0} to scale up/down the font to match the button box less spacing for the axis. *
* @see #setSpacing(Vec2f, Vec2f) * @see #setSpacing(Vec2f) */ public final Button setFixedLabelSize(final float w, final float h) { fixedLabelSize.set( Math.max(0f, Math.min(1f, w)), Math.max(0f, Math.min(1f, h)) ); markShapeDirty(); return this; } public final Button setFixedLabelSize(final Vec2f v) { return setFixedLabelSize(v.x(), v.y()); } /** Returns the current spacing size, see {@Link #setSpacing(Vec2f)} and {@link #setSpacing(Vec2f, Vec2f)}. */ public final Vec2f getSpacing() { return spacing; } /** * Sets spacing in percent of text label, clipped to range [0 .. 1]. * @param spacingX spacing in percent on X, default is {@link #DEFAULT_SPACING_X} * @param spacingY spacing in percent on Y, default is {@link #DEFAULT_SPACING_Y} * @see #setSpacing(Vec2f) * @see #setSpacing(Vec2f, Vec2f) */ public final Button setSpacing(final float spacingX, final float spacingY) { spacing.set( Math.max(0f, Math.min(1f, spacingX)), Math.max(0f, Math.min(1f, spacingY)) ); markShapeDirty(); return this; } /** * Sets spacing in percent of text label, clipped to range [0 .. 1]. * @param spacingX spacing in percent on X, default is {@link #DEFAULT_SPACING_X} * @param spacingY spacing in percent on Y, default is {@link #DEFAULT_SPACING_Y} * @see #setSpacing(Vec2f, Vec2f) */ public final Button setSpacing(final Vec2f spacing) { return setSpacing(spacing.x(), spacing.y()); } /** * Sets spacing {@link #setSpacing(Vec2f)} and fixed label font size {@link #setFixedLabelSize(Vec2f)} for convenience. * @see #setSpacing(Vec2f) * @see #setFixedLabelSize(Vec2f) */ public final Button setSpacing(final Vec2f spacing, final Vec2f fixedLabelSize) { setSpacing(spacing.x(), spacing.y()); setFixedLabelSize(fixedLabelSize.x(), fixedLabelSize.y()); return this; } /** Returns the label color. */ public final Vec4f getLabelColor() { return labelNow.getColor(); } /** Sets the label color, consider using alpha 1 */ public final Button setLabelColor(final Vec4f c) { labelOff.setColor(c); if( null != labelOn ) { labelOn.setColor(c); } markShapeDirty(); return this; } /** Sets the label color, consider using alpha 1 */ public final Button setLabelColor(final float r, final float g, final float b, final float a) { labelOff.setColor(r, g, b, a); if( null != labelOn ) { labelOn.setColor(r, g, b, a); } markShapeDirty(); return this; } /** Sets the label font. */ public final Button setFont(final Font labelFont) { if( !labelOff.getFont().equals(labelFont) ) { labelOff.setFont(labelFont); markShapeDirty(); } if( null != labelOn ) { if( !labelOn.getFont().equals(labelFont) ) { labelOn.setFont(labelFont); markShapeDirty(); } } return this; } /** Sets the current label text. */ public final Button setText(final CharSequence labelText) { if( !labelNow.getText().equals(labelText) ) { labelNow.setText(labelText); markShapeDirty(); } return this; } /** Sets the current label text. */ public final Button setText(final Font labelFont, final CharSequence labelText) { if( !labelNow.getText().equals(labelText) || !labelNow.getFont().equals(labelFont) ) { labelNow.setFont(labelFont); labelNow.setText(labelText); markShapeDirty(); } return this; } @Override public String getSubString() { final String onS = null != labelOn ? ( labelOn + (labelNow == labelOn ? "*" : "" ) + ", " ) : ""; final String offS = labelOff + (labelNow == labelOff ? "*" : "" ) + ", "; final String flsS = fixedLabelSize.isZero() ? "" : "fixedLabelSize["+fixedLabelSize+"], "; return super.getSubString()+", "+ offS + onS + "spacing["+spacing+"], "+flsS+"zOff "+labelZOffset; } }