public void setViewport(Viewport _viewport) {
if (_viewport != null) { // disconnect from old viewport
_viewport.setContainer(null);
}
mViewport = _viewport;
if (mViewport != null) { // connect to new Satellite
mViewport.setContainer(this);
// resize to show entire view of satellite
Dimension size = mViewport.getPreferredSize();
setViewportSize(size);
// resize the window to fit the image
setSize(
size.width + getInsets().left + getInsets().right + 2 * INSET,
size.height + getInsets().top + getInsets().bottom + 2 * INSET);
}
}
public void dispose() {
super.dispose();
if (mViewport != null) {
mViewport.terminate();
mViewport = null;
}
setUniverse(null);
if (mBackBufferGfx != null) {
mBackBufferGfx.dispose();
}
Logger.log("FramedViewportContainer terminated");
}
public void setViewportSize(Dimension _size) {
mViewportSize = new Dimension(_size);
int w = mViewportSize.width + 2 * INSET;
int h = mViewportSize.height + 2 * INSET;
// create an off screen buffer for drawing
if (mBackBufferGfx != null) {
mBackBufferGfx.dispose(); // free old one
}
mBackBufferImg = createImage(w, h);
Logger.log("Create off-screen buffer of " + w + "x" + h + " (" + mBackBufferImg + ")");
mBackBufferGfx = mBackBufferImg.getGraphics();
// Determine the graphics context for the viewport
mDrawGfx = mBackBufferGfx.create(INSET, INSET, mViewportSize.width, mViewportSize.height);
mViewport.setActualSize(mViewportSize);
Logger.log("Viewport resized");
}
/**
* Converts a length from a CSS length or percentage to 'pt'.
*
* @param spec the CSS length specification
* @param whole the value that corresponds to 100%. It is used only when spec is a percentage.
* @return the length in 'pt'
*/
public double ptLength(TermLengthOrPercent spec, double whole) {
float nval = spec.getValue();
if (spec.isPercentage()) return (whole * nval) / 100;
else {
TermLength.Unit unit = spec.getUnit();
double ret = 0;
if (unit == TermLength.Unit.pt) {
ret = nval;
} else if (unit == TermLength.Unit.in) {
ret = nval * 72;
} else if (unit == TermLength.Unit.cm) {
ret = (nval * 72) / 2.54;
} else if (unit == TermLength.Unit.mm) {
ret = (nval * 72) / 25.4;
} else if (unit == TermLength.Unit.pc) {
ret = nval * 12;
} else if (unit == TermLength.Unit.px) {
ret = (nval * 72) / dpi;
} else if (unit == TermLength.Unit.em) {
ret = (em * nval * 72) / dpi; // em is in pixels
} else if (unit == TermLength.Unit.rem) {
ret = (rem * nval * 72) / dpi;
} else if (unit == TermLength.Unit.ex) {
ret = (ex * nval * 72) / dpi;
} else if (unit == TermLength.Unit.ch) {
ret = (ch * nval * 72) / dpi;
} else if (unit == TermLength.Unit.vw) {
return (viewport.getVisibleRect().getWidth() * nval * 72) / (100.0 * dpi);
} else if (unit == TermLength.Unit.vh) {
return (viewport.getVisibleRect().getHeight() * nval * 72) / (100.0 * dpi);
} else if (unit == TermLength.Unit.vmin) {
return (Math.min(
viewport.getVisibleRect().getWidth(), viewport.getVisibleRect().getHeight())
* nval
* 72)
/ (100.0 * dpi);
} else if (unit == TermLength.Unit.vmax) {
return (Math.max(
viewport.getVisibleRect().getWidth(), viewport.getVisibleRect().getHeight())
* nval
* 72)
/ (100.0 * dpi);
}
return ret;
}
}
public void doTimer(TimerTrigger tt) {
mViewport.paint(mDrawGfx);
repaint();
}
