void drawRectangles(NSWindow window, Rectangle[] rects, boolean erase) {
NSRect frame = window.frame();
NSGraphicsContext context = window.graphicsContext();
NSGraphicsContext.setCurrentContext(context);
NSAffineTransform transform = NSAffineTransform.transform();
context.saveGraphicsState();
transform.scaleXBy(1, -1);
transform.translateXBy(0, -frame.height);
transform.concat();
Point parentOrigin;
if (parent != null) {
parentOrigin = display.map(parent, null, 0, 0);
} else {
parentOrigin = new Point(0, 0);
}
context.setCompositingOperation(erase ? OS.NSCompositeClear : OS.NSCompositeSourceOver);
for (int i = 0; i < rects.length; i++) {
Rectangle rect = rects[i];
frame.x = rect.x + parentOrigin.x;
frame.y = rect.y + parentOrigin.y;
frame.width = rect.width;
frame.height = rect.height;
if (erase) {
frame.width++;
frame.height++;
NSBezierPath.fillRect(frame);
} else {
frame.x += 0.5f;
frame.y += 0.5f;
NSBezierPath.strokeRect(frame);
}
}
context.flushGraphics();
context.restoreGraphicsState();
}
/**
* Adds to the receiver a circular or elliptical arc that lies within the specified rectangular
* area.
*
* <p>The resulting arc begins at <code>startAngle</code> and extends for <code>arcAngle</code>
* degrees. Angles are interpreted such that 0 degrees is at the 3 o'clock position. A positive
* value indicates a counter-clockwise rotation while a negative value indicates a clockwise
* rotation.
*
* <p>The center of the arc is the center of the rectangle whose origin is (<code>x</code>, <code>
* y</code>) and whose size is specified by the <code>width</code> and <code>height</code>
* arguments.
*
* <p>The resulting arc covers an area <code>width + 1</code> pixels wide by <code>height + 1
* </code> pixels tall.
*
* @param x the x coordinate of the upper-left corner of the arc
* @param y the y coordinate of the upper-left corner of the arc
* @param width the width of the arc
* @param height the height of the arc
* @param startAngle the beginning angle
* @param arcAngle the angular extent of the arc, relative to the start angle
* @exception SWTException
* <ul>
* <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed
* </ul>
*/
public void addArc(
float x, float y, float width, float height, float startAngle, float arcAngle) {
if (isDisposed()) SWT.error(SWT.ERROR_GRAPHIC_DISPOSED);
NSAffineTransform transform = NSAffineTransform.transform();
transform.translateXBy(x + width / 2f, y + height / 2f);
transform.scaleXBy(width / 2f, height / 2f);
NSBezierPath path = NSBezierPath.bezierPath();
NSPoint center = new NSPoint();
float sAngle = -startAngle;
float eAngle = -(startAngle + arcAngle);
path.appendBezierPathWithArcWithCenter_radius_startAngle_endAngle_clockwise_(
center, 1, sAngle, eAngle, arcAngle > 0);
path.transformUsingAffineTransform(transform);
handle.appendBezierPath(path);
}
/**
* Adds to the receiver the pattern of glyphs generated by drawing the given string using the
* given font starting at the point (x, y).
*
* @param string the text to use
* @param x the x coordinate of the starting point
* @param y the y coordinate of the starting point
* @param font the font to use
* @exception IllegalArgumentException
* <ul>
* <li>ERROR_NULL_ARGUMENT - if the font is null
* <li>ERROR_INVALID_ARGUMENT - if the font has been disposed
* </ul>
*
* @exception SWTException
* <ul>
* <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed
* </ul>
*/
public void addString(String string, float x, float y, Font font) {
if (isDisposed()) SWT.error(SWT.ERROR_GRAPHIC_DISPOSED);
if (font == null) SWT.error(SWT.ERROR_NULL_ARGUMENT);
if (font.isDisposed()) SWT.error(SWT.ERROR_INVALID_ARGUMENT);
NSString str = NSString.stringWith(string);
NSTextStorage textStorage = ((NSTextStorage) new NSTextStorage().alloc());
textStorage.initWithString_(str);
NSLayoutManager layoutManager = (NSLayoutManager) new NSLayoutManager().alloc().init();
NSTextContainer textContainer = (NSTextContainer) new NSTextContainer().alloc();
NSSize size = new NSSize();
size.width = Float.MAX_VALUE;
size.height = Float.MAX_VALUE;
textContainer.initWithContainerSize(size);
textStorage.addLayoutManager(layoutManager);
layoutManager.addTextContainer(textContainer);
NSRange range = new NSRange();
range.length = str.length();
textStorage.beginEditing();
textStorage.addAttribute(OS.NSFontAttributeName(), font.handle, range);
textStorage.endEditing();
range = layoutManager.glyphRangeForTextContainer(textContainer);
if (range.length != 0) {
int glyphs = OS.malloc(4 * range.length * 2);
layoutManager.getGlyphs(glyphs, range);
NSBezierPath path = NSBezierPath.bezierPath();
NSPoint point = new NSPoint();
point.x = x;
point.y = y;
path.moveToPoint(point);
path.appendBezierPathWithGlyphs(glyphs, range.length, font.handle);
NSAffineTransform transform = NSAffineTransform.transform();
transform.scaleXBy(1, -1);
transform.translateXBy(0, -((2 * y) + textStorage.size().height));
path.transformUsingAffineTransform(transform);
OS.free(glyphs);
handle.appendBezierPath(path);
}
textContainer.release();
layoutManager.release();
textStorage.release();
}
void drawInteriorWithFrame_inView(
long /*int*/ id, long /*int*/ sel, NSRect cellRect, long /*int*/ view) {
/*
* Feature in Cocoa. When the last column in a tree does not reach the
* rightmost edge of the tree view, the cell that draws the rightmost-
* column's header is also invoked to draw the header space between its
* right edge and the tree's right edge. If this case is detected then
* nothing should be drawn.
*/
int columnIndex = parent.indexOf(nsColumn);
NSRect headerRect = parent.headerView.headerRectOfColumn(columnIndex);
if (headerRect.x != cellRect.x || headerRect.width != cellRect.width) return;
NSGraphicsContext context = NSGraphicsContext.currentContext();
context.saveGraphicsState();
int contentWidth = 0;
NSSize stringSize = null, imageSize = null;
NSAttributedString attrString = null;
NSTableHeaderCell headerCell = nsColumn.headerCell();
if (displayText != null) {
Font font = Font.cocoa_new(display, headerCell.font());
attrString =
parent.createString(
displayText, font, null, SWT.LEFT, false, (parent.state & DISABLED) == 0, false);
stringSize = attrString.size();
contentWidth += Math.ceil(stringSize.width);
if (image != null) contentWidth += MARGIN; /* space between image and text */
}
if (image != null) {
imageSize = image.handle.size();
contentWidth += Math.ceil(imageSize.width);
}
if (parent.sortColumn == this && parent.sortDirection != SWT.NONE) {
boolean ascending = parent.sortDirection == SWT.UP;
headerCell.drawSortIndicatorWithFrame(cellRect, new NSView(view), ascending, 0);
/* remove the arrow's space from the available drawing width */
NSRect sortRect = headerCell.sortIndicatorRectForBounds(cellRect);
cellRect.width = Math.max(0, sortRect.x - cellRect.x);
}
int drawX = 0;
if ((style & SWT.CENTER) != 0) {
drawX = (int) (cellRect.x + Math.max(MARGIN, ((cellRect.width - contentWidth) / 2)));
} else if ((style & SWT.RIGHT) != 0) {
drawX = (int) (cellRect.x + Math.max(MARGIN, cellRect.width - contentWidth - MARGIN));
} else {
drawX = (int) cellRect.x + MARGIN;
}
if (image != null) {
NSRect destRect = new NSRect();
destRect.x = drawX;
destRect.y = cellRect.y;
destRect.width = Math.min(imageSize.width, cellRect.width - 2 * MARGIN);
destRect.height = Math.min(imageSize.height, cellRect.height);
boolean isFlipped = new NSView(view).isFlipped();
if (isFlipped) {
context.saveGraphicsState();
NSAffineTransform transform = NSAffineTransform.transform();
transform.scaleXBy(1, -1);
transform.translateXBy(0, -(destRect.height + 2 * destRect.y));
transform.concat();
}
NSRect sourceRect = new NSRect();
sourceRect.width = destRect.width;
sourceRect.height = destRect.height;
image.handle.drawInRect(destRect, sourceRect, OS.NSCompositeSourceOver, 1f);
if (isFlipped) context.restoreGraphicsState();
drawX += destRect.width;
}
if (displayText != null && displayText.length() > 0) {
if (image != null) drawX += MARGIN; /* space between image and text */
NSRect destRect = new NSRect();
destRect.x = drawX;
destRect.y = cellRect.y;
destRect.width = Math.min(stringSize.width, cellRect.x + cellRect.width - MARGIN - drawX);
destRect.height = Math.min(stringSize.height, cellRect.height);
attrString.drawInRect(destRect);
}
if (attrString != null) attrString.release();
context.restoreGraphicsState();
}