/**
* 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());
}
}
/** 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);
}
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);
}
// 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();
}
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());
}
}
public Rectangle2D getSizeOfText(String text) {
if (textRenderer == null) throw new RuntimeException();
return textRenderer.getBounds(text);
}
