/**
* Compute the bounds of the text, if necessary.
*
* @param dc the current DrawContext.
*/
protected void computeBoundsIfNeeded(DrawContext dc) {
// Do not compute bounds if they are available. Computing text bounds is expensive, so only do
// this
// calculation if necessary.
if (this.bounds != null) return;
TextRenderer textRenderer =
OGLTextRenderer.getOrCreateTextRenderer(dc.getTextRendererCache(), this.getFont());
int width = 0;
int maxLineHeight = 0;
this.lineBounds = new Rectangle2D[this.lines.length];
for (int i = 0; i < this.lines.length; i++) {
Rectangle2D lineBounds = textRenderer.getBounds(lines[i]);
width = (int) Math.max(lineBounds.getWidth(), width);
double thisLineHeight = Math.abs(lineBounds.getY());
maxLineHeight = (int) Math.max(thisLineHeight, maxLineHeight);
this.lineBounds[i] = lineBounds;
}
this.lineHeight = maxLineHeight;
// Compute final height using maxLineHeight and number of lines
this.bounds =
new Rectangle(
this.lines.length,
maxLineHeight,
width,
this.lines.length * maxLineHeight + this.lines.length * this.lineSpacing);
}
public void drawTextEdge(ModelImpl objectModel) {
Renderable renderable = objectModel.getObj();
TextDataImpl textData = (TextDataImpl) renderable.getTextData();
if (textData != null) {
model.colorMode.textColor(this, textData, objectModel);
model.sizeMode.setSizeFactor2d(model.edgeSizeFactor, textData, objectModel);
if (edgeRefresh) {
builder.buildEdgeText((EdgeData) renderable, textData, model, currentTimeInterval);
}
if (textData.getSizeFactor() * renderer.getCharWidth('a') < PIXEL_LIMIT) {
return;
}
String txt = textData.getLine().getText();
Rectangle2D r = renderer.getBounds(txt);
float posX =
renderable.getModel().getViewportX()
+ (float) r.getWidth() / -2 * textData.getSizeFactor();
float posY =
renderable.getModel().getViewportY()
+ (float) r.getHeight() / -2 * textData.getSizeFactor();
r.setRect(
0,
0,
r.getWidth() / drawable.getDraggingMarkerX(),
r.getHeight() / drawable.getDraggingMarkerY());
textData.getLine().setBounds(r);
renderer.draw3D(txt, posX, posY, 0, textData.getSizeFactor());
}
}
private void display(GLAutoDrawable drawable, Point p) {
if (renderer == null) {
renderer = new TextRenderer(new Font("SansSerif", Font.PLAIN, 10), true, true);
}
Neuron[] n = cells[p.x][p.y];
renderer.begin3DRendering();
renderer.setColor(0, 0, 1, 0.8f);
float s1 = n[0].getState(), s2 = n[1].getState();
float avg = (s1 + s2) / 2;
String s = String.format("%5.3f", avg);
Rectangle2D rect = renderer.getBounds(s);
renderer.draw3D(s, p.x, p.y, 0, .7f); // TODO fix string n lines
renderer.end3DRendering();
GL gl = drawable.getGL();
gl.glRectf(p.x, p.y - 2, p.x + (float) rect.getWidth() * avg * .7f, p.y - 1);
}
/** The scene's implementation of the init method. */
public void init(GLAutoDrawable drawable) {
super.init(drawable);
System.out.println("FlyingTextScene - init");
final GL gl = drawable.getGL();
// Create the text renderer
renderer = new TextRenderer(new Font("Palatino Linotype", Font.TRUETYPE_FONT, 72), true);
// Create the background texture
BufferedImage bgImage = new BufferedImage(2, 2, BufferedImage.TYPE_BYTE_GRAY);
Graphics2D g = bgImage.createGraphics();
g.setColor(new Color(0.3f, 0.3f, 0.3f));
g.fillRect(0, 0, 2, 2);
g.setColor(new Color(0.7f, 0.7f, 0.7f));
g.fillRect(0, 0, 1, 1);
g.fillRect(1, 1, 1, 1);
g.dispose();
backgroundTexture = TextureIO.newTexture(bgImage, false);
backgroundTexture.bind();
backgroundTexture.setTexParameteri(GL.GL_TEXTURE_MIN_FILTER, GL.GL_NEAREST);
backgroundTexture.setTexParameteri(GL.GL_TEXTURE_MAG_FILTER, GL.GL_NEAREST);
backgroundTexture.setTexParameteri(GL.GL_TEXTURE_WRAP_S, GL.GL_REPEAT);
backgroundTexture.setTexParameteri(GL.GL_TEXTURE_WRAP_T, GL.GL_REPEAT);
width = glComposite.getCanvas().getWidth();
height = glComposite.getCanvas().getHeight();
// Compute maximum width of text we're going to draw to avoid
// popping in/out at edges
maxTextWidth = (int) renderer.getBounds("Java 2D").getWidth();
maxTextWidth = Math.max(maxTextWidth, (int) renderer.getBounds("OpenGL").getWidth());
// Create random text
textInfo.clear();
for (int i = 0; i < NUM_STRINGS; i++) {
textInfo.add(randomTextInfo());
}
// Set up properties; note we don't need the depth buffer in this demo
gl.glDisable(GL.GL_DEPTH_TEST);
glComposite.initAnimator(drawable, 100);
}
public void drawTextNode(ModelImpl objectModel) {
Renderable renderable = objectModel.getObj();
TextDataImpl textData = (TextDataImpl) renderable.getTextData();
if (textData != null) {
model.colorMode.textColor(this, textData, objectModel);
model.sizeMode.setSizeFactor3d(model.nodeSizeFactor, textData, objectModel);
if (nodeRefresh) {
builder.buildNodeText((NodeData) renderable, textData, model, currentTimeInterval);
}
String txt = textData.getLine().getText();
Rectangle2D r = renderer.getBounds(txt);
textData.getLine().setBounds(r);
float posX = renderable.x() + (float) r.getWidth() / -2 * textData.getSizeFactor();
float posY = renderable.y() + (float) r.getHeight() / -2 * textData.getSizeFactor();
float posZ = renderable.getRadius();
renderer.draw3D(txt, posX, posY, posZ, textData.getSizeFactor());
}
}
/**
* Draw the label's text. This method assumes that the text renderer context has already been set
* up.
*
* @param textRenderer renderer to use.
*/
protected void doDrawText(TextRenderer textRenderer) {
Color color = this.material.getDiffuse();
Color backgroundColor = this.computeBackgroundColor(color);
float opacity = (float) this.getOpacity();
int x = this.screenPoint.x;
int y = this.screenPoint.y;
float[] compArray = new float[3];
if (AVKey.TEXT_EFFECT_SHADOW.equals(this.effect) && backgroundColor != null) {
backgroundColor.getRGBColorComponents(compArray);
textRenderer.setColor(compArray[0], compArray[1], compArray[2], opacity);
this.drawMultiLineText(textRenderer, x + 1, y - 1);
}
color.getRGBColorComponents(compArray);
textRenderer.setColor(compArray[0], compArray[1], compArray[2], opacity);
this.drawMultiLineText(textRenderer, x, y);
}
public void drawText(String text, double x, double y) {
if (textRenderer == null) throw new RuntimeException();
// gl.glDisable(GL.GL_DEPTH_TEST);
// Uses 3D rendering so it can take advantage of the glTranslate
// function
textRenderer.begin3DRendering();
textRenderer.setColor(currentColor);
textRenderer.draw3D(
text,
(float) (scaleX * (brushPos.getX() + x)),
(float) (scaleY * (brushPos.getY() + y)),
0,
1);
textRenderer.end3DRendering();
textRenderer.flush();
// gl.glEnable(GL.GL_DEPTH_TEST);
}
/**
* Draw the label's text. This method sets up the text renderer, and then calls {@link
* #doDrawText(TextRenderer) doDrawText} to actually draw the text.
*
* @param dc Current draw context.
* @param textRenderer Text renderer.
*/
protected void drawText(DrawContext dc, TextRenderer textRenderer) {
GL gl = dc.getGL();
Angle heading = this.rotation;
double headingDegrees;
if (heading != null) headingDegrees = heading.degrees;
else headingDegrees = 0;
boolean matrixPushed = false;
try {
int x = this.screenPoint.x;
int y = this.screenPoint.y;
if (headingDegrees != 0) {
gl.glPushMatrix();
matrixPushed = true;
gl.glTranslated(x, y, 0);
gl.glRotated(headingDegrees, 0, 0, 1);
gl.glTranslated(-x, -y, 0);
}
if (this.isDrawInterior()) this.drawInterior(dc);
textRenderer.begin3DRendering();
try {
this.doDrawText(textRenderer);
// Draw other labels that share the same text renderer configuration, if possible.
if (this.isEnableBatchRendering()) this.drawBatchedText(dc, textRenderer);
} finally {
textRenderer.end3DRendering();
}
} finally {
if (matrixPushed) {
gl.glPopMatrix();
}
}
}
// Draw the scale label
private void drawLabel(DrawContext dc, String text, Vec4 screenPoint) {
TextRenderer textRenderer =
OGLTextRenderer.getOrCreateTextRenderer(dc.getTextRendererCache(), this.defaultFont);
Rectangle2D nameBound = textRenderer.getBounds(text);
int x = (int) (screenPoint.x() - nameBound.getWidth() / 2d);
int y = (int) screenPoint.y();
textRenderer.begin3DRendering();
textRenderer.setColor(this.getBackgroundColor(this.color));
textRenderer.draw(text, x + 1, y - 1);
textRenderer.setColor(this.color);
textRenderer.draw(text, x, y);
textRenderer.end3DRendering();
}
protected void drawMultiLineText(TextRenderer textRenderer, int x, int y) {
if (this.lines == null) {
String msg = Logging.getMessage("nullValue.StringIsNull");
Logging.logger().severe(msg);
throw new IllegalArgumentException(msg);
}
for (int i = 0; i < this.lines.length; i++) {
String line = this.lines[i];
Rectangle2D bounds = this.lineBounds[i];
int xAligned = x;
if (this.textAlign.equals(AVKey.CENTER)) xAligned = x - (int) (bounds.getWidth() / 2);
else if (this.textAlign.equals(AVKey.RIGHT)) xAligned = x - (int) (bounds.getWidth());
y -= this.lineHeight;
textRenderer.draw3D(line, xAligned, y, 0, 1);
y -= this.lineSpacing;
}
}
public void finalizeDisplay() {
if (textRenderer != null) textRenderer.flush();
gl.glFlush();
}
public Rectangle2D getSizeOfText(String text) {
if (textRenderer == null) throw new RuntimeException();
return textRenderer.getBounds(text);
}
public void reinitRenderer() {
renderer = new TextRenderer(renderer.getFont(), antialised, fractionalMetrics, null, mipmap);
}
public void disposeRenderer() {
renderer.flush();
renderer.dispose();
}
/** Here we actually draw the scene. */
public void display(GLAutoDrawable drawable) {
super.display(drawable);
System.out.println("GLScene - display");
GL gl = drawable.getGL();
try {
// Update velocities and positions of all text
float deltaT = 0.1f;
Point2f tmp = new Point2f();
for (Iterator<TextInfo> iter = textInfo.iterator(); iter.hasNext(); ) {
TextInfo info = (TextInfo) iter.next();
// Randomize things a little bit at run time
if (random.nextInt(1000) == 0) {
info.angularVelocity = INIT_ANG_VEL_MAG * (randomAngle() - 180);
info.velocity = randomVelocity(INIT_VEL_MAG, INIT_VEL_MAG);
}
// Now update angles and positions
info.angle += info.angularVelocity * deltaT;
tmp.set(info.velocity);
tmp.scale(deltaT);
info.position.add(tmp);
// Update color
info.curTime += deltaT;
if (info.curTime > 2 * Math.PI) {
info.curTime -= 2 * Math.PI;
}
int rgb =
Color.HSBtoRGB(info.h, (float) (0.5 * (1 + Math.sin(info.curTime)) * info.s), info.v);
info.r = ((rgb >> 16) & 0xFF) / 255.0f;
info.g = ((rgb >> 8) & 0xFF) / 255.0f;
info.b = (rgb & 0xFF) / 255.0f;
// Wrap angles and positions
if (info.angle < 0) {
info.angle += 360;
} else if (info.angle > 360) {
info.angle -= 360;
}
// Use maxTextWidth to avoid popping in/out at edges
// Would be better to do oriented bounding rectangle computation
if (info.position.x < -maxTextWidth) {
info.position.x = info.position.x + glComposite.getCanvas().getWidth() + 2 * maxTextWidth;
} else if (info.position.x > glComposite.getCanvas().getWidth() + maxTextWidth) {
info.position.x = info.position.x - glComposite.getCanvas().getWidth() - 2 * maxTextWidth;
}
if (info.position.y < -maxTextWidth) {
info.position.y =
info.position.y + glComposite.getCanvas().getHeight() + 2 * maxTextWidth;
} else if (info.position.y > glComposite.getCanvas().getHeight() + maxTextWidth) {
info.position.y =
info.position.y - glComposite.getCanvas().getHeight() - 2 * maxTextWidth;
}
}
gl.glClear(GL.GL_COLOR_BUFFER_BIT);
gl.glMatrixMode(GL.GL_PROJECTION);
gl.glLoadIdentity();
glComposite
.getGLU()
.gluOrtho2D(
0, glComposite.getCanvas().getWidth(), 0, glComposite.getCanvas().getHeight());
gl.glMatrixMode(GL.GL_MODELVIEW);
gl.glLoadIdentity();
// Draw the background texture
backgroundTexture.enable();
backgroundTexture.bind();
TextureCoords coords = backgroundTexture.getImageTexCoords();
int w = glComposite.getCanvas().getWidth();
int h = glComposite.getCanvas().getHeight();
float fw = w / 100.0f;
float fh = h / 100.0f;
gl.glTexEnvi(GL.GL_TEXTURE_ENV, GL.GL_TEXTURE_ENV_MODE, GL.GL_REPLACE);
gl.glBegin(GL.GL_QUADS);
gl.glTexCoord2f(fw * coords.left(), fh * coords.bottom());
gl.glVertex3f(0, 0, 0);
gl.glTexCoord2f(fw * coords.right(), fh * coords.bottom());
gl.glVertex3f(w, 0, 0);
gl.glTexCoord2f(fw * coords.right(), fh * coords.top());
gl.glVertex3f(w, h, 0);
gl.glTexCoord2f(fw * coords.left(), fh * coords.top());
gl.glVertex3f(0, h, 0);
gl.glEnd();
backgroundTexture.disable();
// Render all text
renderer.beginRendering(w, h);
// Note we're doing some slightly fancy stuff to position the text.
// We tell the text renderer to render the text at the origin, and
// manipulate the modelview matrix to put the text where we want.
gl.glMatrixMode(GL.GL_MODELVIEW);
// First render drop shadows
renderer.setColor(0, 0, 0, 0.5f);
for (Iterator<TextInfo> iter = textInfo.iterator(); iter.hasNext(); ) {
TextInfo info = (TextInfo) iter.next();
gl.glLoadIdentity();
gl.glTranslatef(
info.position.x + dropShadowDistance, info.position.y - dropShadowDistance, 0);
gl.glRotatef(info.angle, 0, 0, 1);
renderer.draw(info.text, 0, 0);
renderer.flush();
}
// Now render the actual text
for (Iterator<TextInfo> iter = textInfo.iterator(); iter.hasNext(); ) {
TextInfo info = (TextInfo) iter.next();
gl.glLoadIdentity();
gl.glTranslatef(info.position.x, info.position.y, 0);
gl.glRotatef(info.angle, 0, 0, 1);
renderer.setColor(info.r, info.g, info.b, 1);
renderer.draw(info.text, 0, 0);
renderer.flush();
}
renderer.endRendering();
} catch (Exception e) {
e.printStackTrace();
}
}
public Font getFont() {
return renderer.getFont();
}
public void beginRendering() {
renderer.beginRendering(drawable.getViewportWidth(), drawable.getViewportHeight());
}
public void endRendering() {
renderer.endRendering();
}
public void beginRendering() {
renderer.begin3DRendering();
}
public void setColor(float r, float g, float b, float a) {
renderer.setColor(r, g, b, a);
}
