static void Quartz_Circle(double x, double y, double r,
R_GE_gcontext *gc,
NewDevDesc *dd)
{
QuartzDesc *xd = (QuartzDesc*)dd->deviceSpecific;
CGContextSaveGState( GetContext(xd) );
CGContextBeginPath( GetContext(xd) );
Quartz_SetLineProperties(gc, dd);
CGContextAddArc( GetContext(xd), (float)x , (float)y, (float)r, 3.141592654 * 2.0, 0.0, 0);
Quartz_SetFill( gc->fill, gc->gamma, dd);
CGContextFillPath( GetContext(xd) );
Quartz_SetStroke( gc->col, gc->gamma, dd);
CGContextAddArc( GetContext(xd), (float)x , (float)y, (float)r, 3.141592654 * 2.0, 0.0, 0);
CGContextStrokePath( GetContext(xd) );
CGContextRestoreGState( GetContext(xd) );
}
void SVGPaintServer::fillPath(CGContextRef context, const RenderPath* path) const
{
if (path->style()->svgStyle()->fillRule() == RULE_EVENODD)
CGContextEOFillPath(context);
else
CGContextFillPath(context);
}
void structGraphicsScreen :: v_fillArea (long numberOfPoints, double *xyDC) {
#if cairo
if (our d_cairoGraphicsContext == NULL) return;
// cairo_new_path (our d_cairoGraphicsContext); // move_to() automatically creates a new path
cairo_move_to (our d_cairoGraphicsContext, xyDC [0], xyDC [1]);
for (long i = 1; i < numberOfPoints; i ++)
cairo_line_to (our d_cairoGraphicsContext, xyDC [i + i], xyDC [i + i + 1]);
cairo_close_path (our d_cairoGraphicsContext);
cairo_fill (our d_cairoGraphicsContext);
#elif win
MY_BRUSH
BeginPath (our d_gdiGraphicsContext);
MoveToEx (our d_gdiGraphicsContext, xyDC [0], xyDC [1], NULL);
for (long i = 1; i < numberOfPoints; i ++)
LineTo (our d_gdiGraphicsContext, xyDC [i + i], xyDC [i + i + 1]);
EndPath (our d_gdiGraphicsContext);
FillPath (our d_gdiGraphicsContext);
DEFAULT
#elif mac
GraphicsQuartz_initDraw (this);
quartzPrepareFill (this);
CGContextBeginPath (our d_macGraphicsContext);
CGContextMoveToPoint (our d_macGraphicsContext, xyDC [0], xyDC [1]);
for (long i = 1; i < numberOfPoints; i ++) {
CGContextAddLineToPoint (our d_macGraphicsContext, xyDC [i + i], xyDC [i + i + 1]);
}
CGContextFillPath (our d_macGraphicsContext);
GraphicsQuartz_exitDraw (this);
#endif
}
void drawRoundedRect(CGContextRef context, int x, int y){
struct CGRect cgRect;
struct CGPoint cgPoint;
cgRect.size.width = 640;
cgRect.size.height = y+30;
cgPoint.x = 0;
cgPoint.y = 5;
cgRect.origin = cgPoint;
//printf("Drawing %f, %f, %f, %f", cgPoint.x, cgPoint.y, cgRect.size.width, cgRect.size.height);
CGContextBeginPath(context);
float ovalWidth = 10;
float ovalHeight = 10;
float fw, fh;
// If the width or height of the corner oval is zero, then it reduces to a right angle,
// so instead of a rounded rectangle we have an ordinary one.
if (ovalWidth == 0 || ovalHeight == 0) {
CGContextAddRect(context, cgRect);
return;
}
// Save the context's state so that the translate and scale can be undone with a call
// to CGContextRestoreGState.
CGContextSaveGState(context);
// Translate the origin of the contex to the lower left corner of the rectangle.
CGContextTranslateCTM(context, CGRectGetMinX(cgRect), CGRectGetMinY(cgRect));
//Normalize the scale of the context so that the width and height of the arcs are 1.0
CGContextScaleCTM(context, ovalWidth, ovalHeight);
// Calculate the width and height of the rectangle in the new coordinate system.
fw = CGRectGetWidth(cgRect) / ovalWidth;
fh = CGRectGetHeight(cgRect) / ovalHeight;
// CGContextAddArcToPoint adds an arc of a circle to the context's path (creating the rounded
// corners). It also adds a line from the path's last point to the begining of the arc, making
// the sides of the rectangle.
CGContextMoveToPoint(context, fw, fh/2); // Start at lower right corner
CGContextAddArcToPoint(context, fw, fh, fw/2, fh, 1); // Top right corner
CGContextAddArcToPoint(context, 0, fh, 0, fh/2, 1); // Top left corner
CGContextAddArcToPoint(context, 0, 0, fw/2, 0, 1); // Lower left corner
CGContextAddArcToPoint(context, fw, 0, fw, fh/2, 1); // Back to lower right
// Close the path
CGContextClosePath(context);
CGContextSetRGBFillColor (context, 1, 1, 1, 0.7);
CGContextFillPath(context);
CGContextRestoreGState(context);
}
static inline void fillPathWithFillRule(CGContextRef context, WindRule fillRule)
{
if (fillRule == RULE_EVENODD)
CGContextEOFillPath(context);
else
CGContextFillPath(context);
}
// This method is only used to draw the little circles used in lists.
void GraphicsContext::drawEllipse(const IntRect& rect)
{
// FIXME: CG added CGContextAddEllipseinRect in Tiger, so we should be able to quite easily draw an ellipse.
// This code can only handle circles, not ellipses. But khtml only
// uses it for circles.
ASSERT(rect.width() == rect.height());
if (paintingDisabled())
return;
CGContextRef context = platformContext();
CGContextBeginPath(context);
float r = (float)rect.width() / 2;
CGContextAddArc(context, rect.x() + r, rect.y() + r, r, 0, 2*M_PI, true);
CGContextClosePath(context);
if (fillColor().alpha()) {
if (strokeStyle() != NoStroke)
// stroke and fill
CGContextDrawPath(context, kCGPathFillStroke);
else
CGContextFillPath(context);
} else if (strokeStyle() != NoStroke)
CGContextStrokePath(context);
}
void paintOval(CGContextRef context, CGRect r)
{
// Add a path for the oval to this context
addOvalToPath(context,r);
// Fill the oval
CGContextFillPath(context);
}
void JBGFillTriangle(CGContextRef ctx, CGPoint point_a, CGPoint point_b, CGPoint point_c, CGColorRef color)
{
CGContextBeginPath(ctx);
CGPoint points[] = {point_a, point_b, point_c};
CGContextAddLines(ctx, points, sizeof(points) / sizeof(points[0]));
CGContextClosePath(ctx);
CGContextSetFillColorWithColor(ctx, color);
CGContextFillPath(ctx);
}
/*
fillRoundedRect : fills a rounded rectangle with the current fill color
Parameter Descriptions
rect : The CG rectangle that defines the rectangle's boundary.
ovalWidth : The width of the CG rectangle that encloses the rounded corners
ovalHeight : The height of the CG rectangle that encloses the rounded corners
context : The CG context to render to.
*/
void fillRoundedRect(CGContextRef context, CGRect rect, float ovalWidth, float
ovalHeight)
{
// Signal the start of a path
CGContextBeginPath(context);
// Add a rounded rect to the path
addRoundedRectToPath(context, rect, ovalWidth, ovalHeight);
// Fill the path
CGContextFillPath(context);
}
void MacDock::overlay(const QString& text)
{
if (text.isEmpty()) {
overlayed = false;
RestoreApplicationDockTileImage();
return;
}
// Create the context
CGContextRef context = BeginCGContextForApplicationDockTile();
if (!overlayed) {
overlayed = true;
// Add some subtle drop down shadow
// FIXME: Disabled because 10.2 doesn't support it
//CGSize s = { 2.0, -4.0 };
//CGContextSetShadow(context,s,5.0);
}
// Draw a circle
CGContextBeginPath(context);
CGContextAddArc(context, 95.0, 95.0, 25.0, 0.0, 2 * M_PI, true);
CGContextClosePath(context);
CGContextSetRGBFillColor(context, 1, 0.0, 0.0, 1);
CGContextFillPath(context);
// Set the clipping path to the same circle
CGContextBeginPath(context);
CGContextAddArc(context, 95.0, 95.0, 25.0, 0.0, 2 * M_PI, true);
CGContextClip(context);
// Remove drop shadow
// FIXME: Disabled because 10.2 doesn't support it
//CGSize s = { 0.0, -0.0 };
//CGContextSetShadowWithColor(context, s, 0, NULL);
// Select the appropriate font
CGContextSelectFont(context,DOCK_FONT_NAME, DOCK_FONT_SIZE, kCGEncodingMacRoman);
CGContextSetRGBFillColor(context, 1, 1, 1, 1);
// Draw the text invisible
CGPoint begin = CGContextGetTextPosition(context);
CGContextSetTextDrawingMode(context, kCGTextInvisible);
CGContextShowTextAtPoint(context, begin.x, begin.y, text.toStdString().c_str(), text.length());
CGPoint end = CGContextGetTextPosition(context);
// Draw the text
CGContextSetTextDrawingMode(context, kCGTextFill);
CGContextShowTextAtPoint(context, 95 - (end.x - begin.x)/2, 95 - 8, text.toStdString().c_str(), text.length());
// Cleanup
CGContextFlush(context);
EndCGContextForApplicationDockTile(context);
}
FX_BOOL CFX_QuartzDeviceDriver::DrawPath(const CFX_PathData* pathData,
const CFX_AffineMatrix* matrix,
const CFX_GraphStateData* graphState,
FX_DWORD fillArgb,
FX_DWORD strokeArgb,
int fillMode,
int alpha_flag,
void* pIccTransform,
int blend_type
)
{
SaveState();
CGBlendMode mode = GetCGBlendMode(blend_type);
if (mode != kCGBlendModeNormal) {
CGContextSetBlendMode(_context, mode);
}
CGAffineTransform m = CGAffineTransformIdentity;
if (matrix) {
m = CGAffineTransformMake(matrix->GetA(), matrix->GetB(), matrix->GetC(), matrix->GetD(), matrix->GetE(), matrix->GetF());
}
m = CGAffineTransformConcat(m, _foxitDevice2User);
CGContextConcatCTM(_context, m);
int pathMode = 0;
if (graphState && strokeArgb) {
CGContextSetMiterLimit(_context, graphState->m_MiterLimit);
FX_FLOAT lineWidth = getLineWidth(graphState, m);
setStrokeInfo(graphState, strokeArgb, lineWidth);
pathMode |= 4;
}
if (fillMode && fillArgb) {
setFillInfo(fillArgb);
if ((fillMode & 3) == FXFILL_WINDING) {
pathMode |= 1;
} else if ((fillMode & 3) == FXFILL_ALTERNATE) {
pathMode |= 2;
}
}
setPathToContext(pathData);
if (fillMode & FXFILL_FULLCOVER) {
CGContextSetShouldAntialias(_context, false);
}
if (pathMode == 4) {
CGContextStrokePath(_context);
} else if (pathMode == 1) {
CGContextFillPath(_context);
} else if (pathMode == 2) {
CGContextEOFillPath(_context);
} else if (pathMode == 5) {
CGContextDrawPath(_context, kCGPathFillStroke);
} else if (pathMode == 6) {
CGContextDrawPath(_context, kCGPathEOFillStroke);
}
RestoreState(FALSE);
return TRUE;
}
void CanvasRenderingContext2D::fill()
{
GraphicsContext* c = drawingContext();
if (!c)
return;
// FIXME: Do this through platform-independent GraphicsContext API.
#if PLATFORM(CG)
CGContextBeginPath(c->platformContext());
CGContextAddPath(c->platformContext(), state().m_path.platformPath());
if (!state().m_path.isEmpty())
willDraw(CGContextGetPathBoundingBox(c->platformContext()));
if (state().m_fillStyle->gradient()) {
// Shading works on the entire clip region, so convert the current path to a clip.
c->save();
CGContextClip(c->platformContext());
CGContextDrawShading(c->platformContext(), state().m_fillStyle->gradient()->platformShading());
c->restore();
} else {
if (state().m_fillStyle->pattern())
applyFillPattern();
CGContextFillPath(c->platformContext());
}
#elif PLATFORM(QT)
QPainterPath* path = state().m_path.platformPath();
QPainter* p = static_cast<QPainter*>(c->platformContext());
willDraw(path->controlPointRect());
if (state().m_fillStyle->gradient()) {
p->fillPath(*path, QBrush(*(state().m_fillStyle->gradient()->platformShading())));
} else {
if (state().m_fillStyle->pattern())
applyFillPattern();
p->fillPath(*path, p->brush());
}
#elif PLATFORM(CAIRO)
cairo_t* pathCr = state().m_path.platformPath()->m_cr;
cairo_t* cr = c->platformContext();
cairo_save(cr);
willDraw(state().m_path.boundingRect());
if (state().m_fillStyle->gradient()) {
cairo_set_source(cr, state().m_fillStyle->gradient()->platformShading());
c->addPath(state().m_path);
cairo_fill(cr);
} else {
if (state().m_fillStyle->pattern())
applyFillPattern();
c->addPath(state().m_path);
cairo_fill(cr);
}
cairo_restore(cr);
#endif
clearPathForDashboardBackwardCompatibilityMode();
}
void CanvasRenderingContext2D::fill()
{
GraphicsContext* c = drawingContext();
if (!c)
return;
c->beginPath();
c->addPath(m_path);
if (!m_path.isEmpty())
willDraw(m_path.boundingRect());
#if PLATFORM(CG)
if (state().m_fillStyle->canvasGradient()) {
// Shading works on the entire clip region, so convert the current path to a clip.
c->save();
CGContextClip(c->platformContext());
CGContextDrawShading(c->platformContext(), state().m_fillStyle->canvasGradient()->gradient().platformGradient());
c->restore();
} else {
if (state().m_fillStyle->pattern())
applyFillPattern();
CGContextFillPath(c->platformContext());
}
#elif PLATFORM(QT)
QPainterPath* path = m_path.platformPath();
QPainter* p = static_cast<QPainter*>(c->platformContext());
if (state().m_fillStyle->canvasGradient()) {
p->fillPath(*path, QBrush(*(state().m_fillStyle->canvasGradient()->gradient().platformGradient())));
} else {
if (state().m_fillStyle->pattern())
applyFillPattern();
p->fillPath(*path, p->brush());
}
#elif PLATFORM(CAIRO) && !PLATFORM(BAL)
cairo_t* cr = c->platformContext();
cairo_save(cr);
if (state().m_fillStyle->canvasGradient()) {
cairo_set_source(cr, state().m_fillStyle->canvasGradient()->gradient().platformGradient());
cairo_fill(cr);
} else {
if (state().m_fillStyle->pattern())
applyFillPattern();
cairo_fill(cr);
}
cairo_restore(cr);
#elif PLATFORM(BAL)
//FIXME
notImplemented();
#endif
#if ENABLE(DASHBOARD_SUPPORT)
clearPathForDashboardBackwardCompatibilityMode();
#endif
}
void PlatformCALayer::drawRepaintIndicator(CGContextRef context, PlatformCALayer* platformCALayer, int repaintCount, CGColorRef customBackgroundColor)
{
char text[16]; // that's a lot of repaints
snprintf(text, sizeof(text), "%d", repaintCount);
FloatRect indicatorBox = platformCALayer->bounds();\
indicatorBox.setLocation( { 1, 1 } );
indicatorBox.setSize(FloatSize(12 + 10 * strlen(text), 27));
CGContextStateSaver stateSaver(context);
CGContextSetAlpha(context, 0.5f);
CGContextBeginTransparencyLayerWithRect(context, indicatorBox, 0);
if (customBackgroundColor)
CGContextSetFillColorWithColor(context, customBackgroundColor);
else
CGContextSetRGBFillColor(context, 0, 0.5f, 0.25f, 1);
if (platformCALayer->isOpaque())
CGContextFillRect(context, indicatorBox);
else {
Path boundsPath;
boundsPath.moveTo(indicatorBox.maxXMinYCorner());
boundsPath.addLineTo(indicatorBox.maxXMaxYCorner());
boundsPath.addLineTo(indicatorBox.minXMaxYCorner());
const float cornerChunk = 8;
boundsPath.addLineTo(FloatPoint(indicatorBox.x(), indicatorBox.y() + cornerChunk));
boundsPath.addLineTo(FloatPoint(indicatorBox.x() + cornerChunk, indicatorBox.y()));
boundsPath.closeSubpath();
CGContextAddPath(context, boundsPath.platformPath());
CGContextFillPath(context);
}
if (platformCALayer->owner()->isUsingDisplayListDrawing(platformCALayer)) {
CGContextSetRGBStrokeColor(context, 0, 0, 0, 0.65);
CGContextSetLineWidth(context, 2);
CGContextStrokeRect(context, indicatorBox);
}
if (platformCALayer->acceleratesDrawing())
CGContextSetRGBFillColor(context, 1, 0, 0, 1);
else
CGContextSetRGBFillColor(context, 1, 1, 1, 1);
platformCALayer->drawTextAtPoint(context, indicatorBox.x() + 5, indicatorBox.y() + 22, CGSizeMake(1, -1), 22, text, strlen(text));
CGContextEndTransparencyLayer(context);
}
void InitButton(unsigned w, unsigned h)
{
CGColorSpaceRef colorspace;
CGContextRef gc;
unsigned char *data;
float cx, cy;
data = (unsigned char *)malloc(w * h * 4);
colorspace = CGColorSpaceCreateWithName(kCGColorSpaceGenericRGB);
gc = CGBitmapContextCreate(data, w, h, 8, w * 4, colorspace,
kCGImageAlphaPremultipliedFirst | kCGBitmapByteOrder32Host);
cx = CENTERX * w;
cy = CENTERY * h;
// background
CGContextTranslateCTM(gc, 0.0, h);
CGContextScaleCTM(gc, 1.0, -1.0);
CGContextClearRect(gc, CGRectMake(0, 0, w, h));
CGContextSetRGBFillColor(gc, 0.0, 0.0, 0.0, 0.8);
AddRoundedRectToPath(gc, CGRectMake(w*0.05, h*0.5 - 32, w*0.9, 64), 32, 32);
CGContextFillPath(gc);
CGGradientRef gradient;
size_t num_locations = 2;
CGFloat locations[2] = { 0.0, 1.0 };
CGFloat components[8] = { 1.0, 1.0, 1.0, 0.5, // Start color
0.0, 0.0, 0.0, 0.0
}; // End color
gradient = CGGradientCreateWithColorComponents (colorspace, components,
locations, num_locations);
// top bevel
CGContextSaveGState(gc);
AddRoundedRectToPath(gc, CGRectMake(w*0.05, h*0.5 - 32, w*0.9, 64), 32, 32);
CGContextEOClip(gc);
CGContextDrawLinearGradient (gc, gradient,
CGPointMake(cx, cy + 32),
CGPointMake(cx, cy), 0);
CGContextDrawLinearGradient (gc, gradient,
CGPointMake(cx, cy - 32),
CGPointMake(cx, cy - 16), 0);
glTexImage2D(GL_TEXTURE_RECTANGLE_ARB, 0, GL_RGBA8, w, h, 0, GL_BGRA, GL_UNSIGNED_INT_8_8_8_8_REV, data);
CGContextRelease(gc);
CGColorSpaceRelease(colorspace);
free(data);
}
void GraphicsContext::fillRoundedRect(const IntRect& rect, const IntSize& topLeft, const IntSize& topRight, const IntSize& bottomLeft, const IntSize& bottomRight, const Color& color)
{
if (paintingDisabled() || !color.alpha())
return;
CGContextRef context = platformContext();
Color oldFillColor = fillColor();
if (oldFillColor != color)
setCGFillColor(context, color);
// Add the four ellipses to the path. Technically this really isn't good enough, since we could end up
// not clipping the other 3/4 of the ellipse we don't care about. We're relying on the fact that for
// normal use cases these ellipses won't overlap one another (or when they do the curvature of one will
// be subsumed by the other).
CGContextAddEllipseInRect(context, CGRectMake(rect.x(), rect.y(), topLeft.width() * 2, topLeft.height() * 2));
CGContextAddEllipseInRect(context, CGRectMake(rect.right() - topRight.width() * 2, rect.y(),
topRight.width() * 2, topRight.height() * 2));
CGContextAddEllipseInRect(context, CGRectMake(rect.x(), rect.bottom() - bottomLeft.height() * 2,
bottomLeft.width() * 2, bottomLeft.height() * 2));
CGContextAddEllipseInRect(context, CGRectMake(rect.right() - bottomRight.width() * 2,
rect.bottom() - bottomRight.height() * 2,
bottomRight.width() * 2, bottomRight.height() * 2));
// Now add five rects (one for each edge rect in between the rounded corners and one for the interior).
CGContextAddRect(context, CGRectMake(rect.x() + topLeft.width(), rect.y(),
rect.width() - topLeft.width() - topRight.width(),
max(topLeft.height(), topRight.height())));
CGContextAddRect(context, CGRectMake(rect.x() + bottomLeft.width(),
rect.bottom() - max(bottomLeft.height(), bottomRight.height()),
rect.width() - bottomLeft.width() - bottomRight.width(),
max(bottomLeft.height(), bottomRight.height())));
CGContextAddRect(context, CGRectMake(rect.x(), rect.y() + topLeft.height(),
max(topLeft.width(), bottomLeft.width()), rect.height() - topLeft.height() - bottomLeft.height()));
CGContextAddRect(context, CGRectMake(rect.right() - max(topRight.width(), bottomRight.width()),
rect.y() + topRight.height(),
max(topRight.width(), bottomRight.width()), rect.height() - topRight.height() - bottomRight.height()));
CGContextAddRect(context, CGRectMake(rect.x() + max(topLeft.width(), bottomLeft.width()),
rect.y() + max(topLeft.height(), topRight.height()),
rect.width() - max(topLeft.width(), bottomLeft.width()) - max(topRight.width(), bottomRight.width()),
rect.height() - max(topLeft.height(), topRight.height()) - max(bottomLeft.height(), bottomRight.height())));
CGContextFillPath(context);
if (oldFillColor != color)
setCGFillColor(context, oldFillColor);
}
void paintArc(CGContextRef context, CGRect r, int startAngle, int arcAngle)
{
float start, end;
// Signal the start of a path
CGContextBeginPath(context);
// Set the start of the path to the arcs focal point
CGContextMoveToPoint(context, r.origin.x + r.size.width/2, r.origin.y + r.size.height/2);
// Add to the path the arc of the oval that fits inside the rectangle.
pathForArc(context,r,startAngle,arcAngle);
// Complete the path closing the arc at the focal point
CGContextClosePath(context);
// Fill the path
CGContextFillPath(context);
}
static void
gdk_quartz_draw_polygon (GdkDrawable *drawable,
GdkGC *gc,
gboolean filled,
GdkPoint *points,
gint npoints)
{
CGContextRef context = gdk_quartz_drawable_get_context (drawable, FALSE);
int i;
if (!context)
return;
if (!_gdk_quartz_gc_update_cg_context (gc, drawable, context,
filled ?
GDK_QUARTZ_CONTEXT_FILL :
GDK_QUARTZ_CONTEXT_STROKE))
{
gdk_quartz_drawable_release_context (drawable, context);
return;
}
if (filled)
{
CGContextMoveToPoint (context, points[0].x, points[0].y);
for (i = 1; i < npoints; i++)
CGContextAddLineToPoint (context, points[i].x, points[i].y);
CGContextClosePath (context);
CGContextFillPath (context);
}
else
{
CGContextMoveToPoint (context, points[0].x + 0.5, points[0].y + 0.5);
for (i = 1; i < npoints; i++)
CGContextAddLineToPoint (context, points[i].x + 0.5, points[i].y + 0.5);
CGContextClosePath (context);
CGContextStrokePath (context);
}
gdk_quartz_drawable_release_context (drawable, context);
}
static void Quartz_Polygon(int n, double *x, double *y,
R_GE_gcontext *gc,
NewDevDesc *dd)
{
int i;
QuartzDesc *xd = (QuartzDesc*)dd->deviceSpecific;
CGPoint *lines;
CGContextSaveGState( GetContext(xd) );
CGContextBeginPath( GetContext(xd) );
/* Quartz_SetLineProperties(gc, dd); */
lines = (CGPoint *)malloc(sizeof(CGPoint)*(n+1));
if(lines == NULL)
return;
for (i = 0; i < n; i++) {
lines[i].x = (float)x[i];
lines[i].y = (float)y[i];
}
lines[n].x = (float)x[0];
lines[n].y = (float)y[0];
CGContextAddLines( GetContext(xd), &lines[0], n+1 );
Quartz_SetLineProperties(gc, dd);
Quartz_SetFill( gc->fill, gc->gamma, dd);
CGContextFillPath( GetContext(xd) );
CGContextAddLines( GetContext(xd), &lines[0], n+1 );
Quartz_SetStroke( gc->col, gc->gamma, dd);
CGContextStrokePath( GetContext(xd) );
CGContextRestoreGState( GetContext(xd) );
}
void doRotatedEllipsesWithCGPath(CGContextRef context)
{
int i, totreps = 144.;
CGMutablePathRef path = NULL;
float tint = 1., tintIncrement = 1./totreps;
// Create a new transform consisting of a 45 degree rotation.
CGAffineTransform theTransform = CGAffineTransformMakeRotation(M_PI/4);
// Apply a scaling transformation to the transform just created.
theTransform = CGAffineTransformScale(theTransform, 1, 2);
// Create a mutable CGPath object.
path = CGPathCreateMutable();
if(!path){
fprintf(stderr, "Couldn't create path!\n");
return;
}
// Add a circular arc to the CGPath object, transformed
// by an affine transform.
CGPathAddArc(path, &theTransform, 0., 0., 45., 0., 2*M_PI, false);
// Close the CGPath object.
CGPathCloseSubpath(path);
// Place the first ellipse at a good location.
CGContextTranslateCTM(context, 100., 100.);
for (i = 0 ; i < totreps ; i++){
CGContextBeginPath(context);
// Add the CGPath object to the current path in the context.
CGContextAddPath(context, path);
// Set the fill color for this instance of the ellipse.
CGContextSetRGBFillColor(context, tint, 0., 0., 1.);
// Filling the path implicitly closes it.
CGContextFillPath(context);
// Compute the next tint color.
tint -= tintIncrement;
// Move over for the next ellipse.
CGContextTranslateCTM(context, 1, 0.);
}
// Release the path when done with it.
CGPathRelease(path);
}
static void drawNeedle(CGContextRef gc, int w, int h, float angle)
{
float dx, dy, cx, cy, radius, needle;
cx = CENTERX * w;
cy = CENTERY * h;
dx = -cos(angle);
dy = -sin(angle);
radius = 0.5 * (w > h ? w : h);
needle = radius * 0.85;
CGContextMoveToPoint(gc, cx + needle*dx - 0.5*dy,
cy + needle*dy + 0.5*dx);
CGContextAddLineToPoint(gc, cx + needle*dx + 0.5*dy,
cy + needle*dy - 0.5*dx);
CGContextAddLineToPoint(gc, cx - NEEDLE_THICKNESS*dx + 0.5*NEEDLE_THICKNESS*dy,
cy - NEEDLE_THICKNESS*dy - 0.5*NEEDLE_THICKNESS*dx);
CGContextAddArc(gc, cx - NEEDLE_THICKNESS*dx, cy - NEEDLE_THICKNESS*dy,
0.5*NEEDLE_THICKNESS, angle - 0.5*M_PI, angle + 0.5*M_PI, false);
CGContextAddLineToPoint(gc, cx - NEEDLE_THICKNESS*dx - 0.5*NEEDLE_THICKNESS*dy,
cy - NEEDLE_THICKNESS*dy + 0.5*NEEDLE_THICKNESS*dx);
CGContextFillPath(gc);
}
void MacVegaPrinterListener::FillEllipse(const OpRect& rect)
{
CGRect cgrect = CGRectMake(rect.x, rect.y, rect.width, rect.height);
cgrect.origin.y = m_winHeight - cgrect.origin.y - cgrect.size.height;
float cx = cgrect.origin.x + (cgrect.size.width / 2);
float cy = cgrect.origin.y + (cgrect.size.height / 2);
float radius = cgrect.size.width / 2;
if(cgrect.size.width != cgrect.size.height)
{
cy = cy * cgrect.size.width / cgrect.size.height;
CGContextScaleCTM(m_ctx, 1.0, cgrect.size.height/cgrect.size.width);
}
CGContextAddArc(m_ctx, cx, cy, radius, 0, 2*M_PI, 0);
CGContextFillPath(m_ctx);
if(cgrect.size.width != cgrect.size.height)
{
CGContextScaleCTM(m_ctx, 1.0, cgrect.size.width/cgrect.size.height);
}
}
static void
gdk_quartz_draw_arc (GdkDrawable *drawable,
GdkGC *gc,
gboolean filled,
gint x,
gint y,
gint width,
gint height,
gint angle1,
gint angle2)
{
CGContextRef context = gdk_quartz_drawable_get_context (drawable, FALSE);
float start_angle, end_angle;
gboolean clockwise = FALSE;
if (!context)
return;
if (!_gdk_quartz_gc_update_cg_context (gc, drawable, context,
filled ?
GDK_QUARTZ_CONTEXT_FILL :
GDK_QUARTZ_CONTEXT_STROKE))
{
gdk_quartz_drawable_release_context (drawable, context);
return;
}
start_angle = angle1 * 2.0 * G_PI / 360.0 / 64.0;
end_angle = start_angle + angle2 * 2.0 * G_PI / 360.0 / 64.0;
/* angle2 is relative to angle1 and can be negative, which switches
* the drawing direction
*/
if (angle2 < 0)
clockwise = TRUE;
/* below, flip the coordinate system back to its original y-diretion
* so the angles passed to CGContextAddArc() are interpreted as
* expected
*
* FIXME: the implementation below works only for perfect circles
* (width == height). Any other aspect ratio either scales the
* line width unevenly or scales away the path entirely for very
* small line widths (esp. for line_width == 0, which is a hair
* line on X11 but must be approximated with the thinnest possible
* line on quartz).
*/
if (filled)
{
CGContextTranslateCTM (context,
x + width / 2.0,
y + height / 2.0);
CGContextScaleCTM (context, 1.0, - (double)height / (double)width);
CGContextMoveToPoint (context, 0, 0);
CGContextAddArc (context, 0, 0, width / 2.0,
start_angle, end_angle,
clockwise);
CGContextClosePath (context);
CGContextFillPath (context);
}
else
{
CGContextTranslateCTM (context,
x + width / 2.0 + 0.5,
y + height / 2.0 + 0.5);
CGContextScaleCTM (context, 1.0, - (double)height / (double)width);
CGContextAddArc (context, 0, 0, width / 2.0,
start_angle, end_angle,
clockwise);
CGContextStrokePath (context);
}
gdk_quartz_drawable_release_context (drawable, context);
}
static void drawGDIGlyphs(GraphicsContext* graphicsContext, const SimpleFontData* font, const GlyphBuffer& glyphBuffer,
int from, int numGlyphs, const FloatPoint& point)
{
Color fillColor = graphicsContext->fillColor();
bool drawIntoBitmap = false;
TextDrawingModeFlags drawingMode = graphicsContext->textDrawingMode();
if (drawingMode == TextModeFill) {
if (!fillColor.alpha())
return;
drawIntoBitmap = fillColor.alpha() != 255 || graphicsContext->inTransparencyLayer();
if (!drawIntoBitmap) {
FloatSize offset;
float blur;
Color color;
ColorSpace shadowColorSpace;
graphicsContext->getShadow(offset, blur, color, shadowColorSpace);
drawIntoBitmap = offset.width() || offset.height() || blur;
}
}
// We have to convert CG's two-dimensional floating point advances to just horizontal integer advances.
Vector<int, 2048> gdiAdvances;
int totalWidth = 0;
for (int i = 0; i < numGlyphs; i++) {
gdiAdvances.append(lroundf(glyphBuffer.advanceAt(from + i)));
totalWidth += gdiAdvances[i];
}
HDC hdc = 0;
OwnPtr<GraphicsContext::WindowsBitmap> bitmap;
IntRect textRect;
if (!drawIntoBitmap)
hdc = graphicsContext->getWindowsContext(textRect, true, false);
if (!hdc) {
drawIntoBitmap = true;
// We put slop into this rect, since glyphs can overflow the ascent/descent bounds and the left/right edges.
// FIXME: Can get glyphs' optical bounds (even from CG) to get this right.
const FontMetrics& fontMetrics = font->fontMetrics();
int lineGap = fontMetrics.lineGap();
textRect = IntRect(point.x() - (fontMetrics.ascent() + fontMetrics.descent()) / 2,
point.y() - fontMetrics.ascent() - lineGap,
totalWidth + fontMetrics.ascent() + fontMetrics.descent(),
fontMetrics.lineSpacing());
bitmap = graphicsContext->createWindowsBitmap(textRect.size());
memset(bitmap->buffer(), 255, bitmap->bufferLength());
hdc = bitmap->hdc();
XFORM xform;
xform.eM11 = 1.0f;
xform.eM12 = 0.0f;
xform.eM21 = 0.0f;
xform.eM22 = 1.0f;
xform.eDx = -textRect.x();
xform.eDy = -textRect.y();
SetWorldTransform(hdc, &xform);
}
SelectObject(hdc, font->platformData().hfont());
// Set the correct color.
if (drawIntoBitmap)
SetTextColor(hdc, RGB(0, 0, 0));
else
SetTextColor(hdc, RGB(fillColor.red(), fillColor.green(), fillColor.blue()));
SetBkMode(hdc, TRANSPARENT);
SetTextAlign(hdc, TA_LEFT | TA_BASELINE);
// Uniscribe gives us offsets to help refine the positioning of combining glyphs.
FloatSize translation = glyphBuffer.offsetAt(from);
if (translation.width() || translation.height()) {
XFORM xform;
xform.eM11 = 1.0;
xform.eM12 = 0;
xform.eM21 = 0;
xform.eM22 = 1.0;
xform.eDx = translation.width();
xform.eDy = translation.height();
ModifyWorldTransform(hdc, &xform, MWT_LEFTMULTIPLY);
}
if (drawingMode == TextModeFill) {
XFORM xform;
xform.eM11 = 1.0;
xform.eM12 = 0;
xform.eM21 = font->platformData().syntheticOblique() ? -tanf(syntheticObliqueAngle * piFloat / 180.0f) : 0;
xform.eM22 = 1.0;
xform.eDx = point.x();
xform.eDy = point.y();
ModifyWorldTransform(hdc, &xform, MWT_LEFTMULTIPLY);
ExtTextOut(hdc, 0, 0, ETO_GLYPH_INDEX, 0, reinterpret_cast<const WCHAR*>(glyphBuffer.glyphs(from)), numGlyphs, gdiAdvances.data());
if (font->syntheticBoldOffset()) {
xform.eM21 = 0;
xform.eDx = font->syntheticBoldOffset();
xform.eDy = 0;
ModifyWorldTransform(hdc, &xform, MWT_LEFTMULTIPLY);
ExtTextOut(hdc, 0, 0, ETO_GLYPH_INDEX, 0, reinterpret_cast<const WCHAR*>(glyphBuffer.glyphs(from)), numGlyphs, gdiAdvances.data());
}
} else {
XFORM xform;
GetWorldTransform(hdc, &xform);
AffineTransform hdcTransform(xform.eM11, xform.eM21, xform.eM12, xform.eM22, xform.eDx, xform.eDy);
CGAffineTransform initialGlyphTransform = hdcTransform.isInvertible() ? hdcTransform.inverse() : CGAffineTransformIdentity;
if (font->platformData().syntheticOblique())
initialGlyphTransform = CGAffineTransformConcat(initialGlyphTransform, CGAffineTransformMake(1, 0, tanf(syntheticObliqueAngle * piFloat / 180.0f), 1, 0, 0));
initialGlyphTransform.tx = 0;
initialGlyphTransform.ty = 0;
CGContextRef cgContext = graphicsContext->platformContext();
CGContextSaveGState(cgContext);
BOOL fontSmoothingEnabled = false;
SystemParametersInfo(SPI_GETFONTSMOOTHING, 0, &fontSmoothingEnabled, 0);
CGContextSetShouldAntialias(cgContext, fontSmoothingEnabled);
CGContextScaleCTM(cgContext, 1.0, -1.0);
CGContextTranslateCTM(cgContext, point.x() + glyphBuffer.offsetAt(from).width(), -(point.y() + glyphBuffer.offsetAt(from).height()));
for (unsigned i = 0; i < numGlyphs; ++i) {
RetainPtr<CGPathRef> glyphPath(AdoptCF, createPathForGlyph(hdc, glyphBuffer.glyphAt(from + i)));
CGContextSaveGState(cgContext);
CGContextConcatCTM(cgContext, initialGlyphTransform);
if (drawingMode & TextModeFill) {
CGContextAddPath(cgContext, glyphPath.get());
CGContextFillPath(cgContext);
if (font->syntheticBoldOffset()) {
CGContextTranslateCTM(cgContext, font->syntheticBoldOffset(), 0);
CGContextAddPath(cgContext, glyphPath.get());
CGContextFillPath(cgContext);
CGContextTranslateCTM(cgContext, -font->syntheticBoldOffset(), 0);
}
}
if (drawingMode & TextModeStroke) {
CGContextAddPath(cgContext, glyphPath.get());
CGContextStrokePath(cgContext);
if (font->syntheticBoldOffset()) {
CGContextTranslateCTM(cgContext, font->syntheticBoldOffset(), 0);
CGContextAddPath(cgContext, glyphPath.get());
CGContextStrokePath(cgContext);
CGContextTranslateCTM(cgContext, -font->syntheticBoldOffset(), 0);
}
}
CGContextRestoreGState(cgContext);
CGContextTranslateCTM(cgContext, gdiAdvances[i], 0);
}
CGContextRestoreGState(cgContext);
}
if (drawIntoBitmap) {
UInt8* buffer = bitmap->buffer();
unsigned bufferLength = bitmap->bufferLength();
for (unsigned i = 0; i < bufferLength; i += 4) {
// Use green, which is always in the middle.
UInt8 alpha = (255 - buffer[i + 1]) * fillColor.alpha() / 255;
buffer[i] = fillColor.blue();
buffer[i + 1] = fillColor.green();
buffer[i + 2] = fillColor.red();
buffer[i + 3] = alpha;
}
graphicsContext->drawWindowsBitmap(bitmap.get(), textRect.location());
} else
graphicsContext->releaseWindowsContext(hdc, textRect, true, false);
}
static void initBackground(unsigned w, unsigned h, unsigned max)
{
CGColorSpaceRef colorspace;
CGContextRef gc;
unsigned char *data;
float cx, cy;
float radius, needle;
data = (unsigned char *)malloc(w * h * 4);
colorspace = CGColorSpaceCreateWithName(kCGColorSpaceGenericRGB);
gc = CGBitmapContextCreate(data, w, h, 8, w * 4, colorspace,
kCGImageAlphaPremultipliedFirst | kCGBitmapByteOrder32Host);
cx = CENTERX * w;
cy = CENTERY * h;
radius = 0.5 * (w > h ? w : h);
needle = radius * 0.85;
// background
CGContextTranslateCTM(gc, 0.0, h);
CGContextScaleCTM(gc, 1.0, -1.0);
CGContextClearRect(gc, CGRectMake(0, 0, w, h));
CGContextSetRGBFillColor(gc, 0.0, 0.0, 0.0, 0.7);
CGContextAddArc(gc, cx, cy, radius, 0, 2*M_PI, false);
CGContextFillPath(gc);
CGGradientRef gradient;
size_t num_locations = 2;
CGFloat locations[2] = { 0.0, 1.0 };
CGFloat components[8] = { 1.0, 1.0, 1.0, 0.5, // Start color
0.0, 0.0, 0.0, 0.0
}; // End color
gradient = CGGradientCreateWithColorComponents (colorspace, components,
locations, num_locations);
// top rim light
CGContextSaveGState(gc);
CGContextAddArc(gc, cx, cy, radius, 0, 2*M_PI, false);
CGContextAddArc(gc, cx, cy, needle*1.05, 0, 2*M_PI, false);
CGContextEOClip(gc);
CGContextDrawRadialGradient (gc, gradient,
CGPointMake(cx, cy*1.00), radius*1.01,
CGPointMake(cx, cy*0.96), radius*0.98, 0);
// bottom rim light
CGContextDrawRadialGradient (gc, gradient,
CGPointMake(cx, cy*1.00), radius*1.01,
CGPointMake(cx, cy*1.04), radius*0.98, 0);
// top bevel
CGContextDrawRadialGradient (gc, gradient,
CGPointMake(cx, cy*2.2), radius*0.2,
CGPointMake(cx, cy*1.0), radius*1.0, 0);
// bottom bevel
CGContextRestoreGState(gc);
CGContextSaveGState(gc);
CGContextAddArc(gc, cx, cy, needle*1.05, 0, 2*M_PI, false);
CGContextAddArc(gc, cx, cy, needle*0.96, 0, 2*M_PI, false);
CGContextEOClip(gc);
CGContextDrawRadialGradient (gc, gradient,
CGPointMake(cx, cy* -.5), radius*0.2,
CGPointMake(cx, cy*1.0), radius*1.0, 0);
CGGradientRelease(gradient);
CGContextRestoreGState(gc);
CGContextSetRGBFillColor(gc, 0.9, 0.9, 1.0, 1.0);
CGContextSetRGBStrokeColor(gc, 0.9, 0.9, 1.0, 1.0);
CGContextSetLineCap(gc, kCGLineCapRound);
// draw several glow passes, with the content offscreen
CGContextTranslateCTM(gc, 0, OFFSCREEN - 10);
CGContextSetShadowWithColor(gc, CGSizeMake(0, OFFSCREEN), 48.0, CGColorCreateGenericRGB(0.5, 0.5, 1.0, 0.7));
drawMarks(gc, w, h, max);
CGContextTranslateCTM(gc, 0, 20);
CGContextSetShadowWithColor(gc, CGSizeMake(0, OFFSCREEN), 48.0, CGColorCreateGenericRGB(0.5, 0.5, 1.0, 0.7));
drawMarks(gc, w, h, max);
CGContextTranslateCTM(gc, -10, -10);
CGContextSetShadowWithColor(gc, CGSizeMake(0, OFFSCREEN), 48.0, CGColorCreateGenericRGB(0.5, 0.5, 1.0, 0.7));
drawMarks(gc, w, h, max);
CGContextTranslateCTM(gc, 20, 0);
CGContextSetShadowWithColor(gc, CGSizeMake(0, OFFSCREEN), 48.0, CGColorCreateGenericRGB(0.5, 0.5, 1.0, 0.7));
drawMarks(gc, w, h, max);
CGContextTranslateCTM(gc, -10, -OFFSCREEN);
// draw real content
CGContextSetShadowWithColor(gc, CGSizeMake(0, 1), 6.0, CGColorCreateGenericRGB(0.7, 0.7, 1.0, 0.9));
drawMarks(gc, w, h, max);
glTexImage2D(GL_TEXTURE_RECTANGLE_ARB, 0, GL_RGBA8, w, h, 0, GL_BGRA, GL_UNSIGNED_INT_8_8_8_8_REV, data);
CGContextRelease(gc);
CGColorSpaceRelease(colorspace);
free(data);
}
void doClippedEllipse(CGContextRef context)
{
CGPoint theCenterPoint = { 120., 120. };
CGSize theEllipseSize = { 100., 200. };
float dash[1] = { 2 };
static CGColorRef opaqueBrownColor = NULL, opaqueOrangeColor = NULL;
// Initialize the CGColorRefs if necessary.
if(opaqueBrownColor == NULL){
// The initial value of the color array is an
// opaque brown in an RGB color space.
float color[4] = { 0.325, 0.208, 0.157, 1.0 };
CGColorSpaceRef theColorSpace = getTheCalibratedRGBColorSpace();
// Create a CGColorRef for opaque brown.
opaqueBrownColor = CGColorCreate(theColorSpace, color);
// Make the color array correspond to an opaque orange.
color[0] = 0.965 ; color[1] = 0.584; color[2] = 0.059;
// Create another CGColorRef for opaque orange.
opaqueOrangeColor = CGColorCreate(theColorSpace, color);
}
// Draw two ellipses centered about the same point, one
// rotated 45 degrees from the other.
CGContextSaveGState(context);
// Ellipse 1
createEllipsePath(context, theCenterPoint, theEllipseSize);
CGContextSetFillColorWithColor(context, opaqueBrownColor);
CGContextFillPath(context);
// Translate and rotate about the center point of the ellipse.
CGContextTranslateCTM(context, theCenterPoint.x, theCenterPoint.y);
// Rotate by 45 degrees.
CGContextRotateCTM(context, DEGREES_TO_RADIANS(45));
// Ellipse 2
// CGPointZero is a pre-defined Quartz point corresponding to
// the coordinate (0,0).
createEllipsePath(context, CGPointZero, theEllipseSize);
CGContextSetFillColorWithColor(context, opaqueOrangeColor);
CGContextFillPath(context);
CGContextRestoreGState(context);
CGContextTranslateCTM(context, 170., 0.);
// Now use the first ellipse as a clipping area prior to
// painting the second ellipse.
CGContextSaveGState(context);
// Ellipse 3
createEllipsePath(context, theCenterPoint, theEllipseSize);
CGContextSetStrokeColorWithColor(context, opaqueBrownColor);
CGContextSetLineDash(context, 0, dash, 1);
// Stroke the path with a dash.
CGContextStrokePath(context);
// Ellipse 4
createEllipsePath(context, theCenterPoint, theEllipseSize);
// Clip to the elliptical path.
CGContextClip(context);
CGContextTranslateCTM(context, theCenterPoint.x, theCenterPoint.y);
// Rotate by 45 degrees.
CGContextRotateCTM(context, DEGREES_TO_RADIANS(45));
// Ellipse 5
createEllipsePath(context, CGPointZero, theEllipseSize);
CGContextSetFillColorWithColor(context, opaqueOrangeColor);
CGContextFillPath(context);
CGContextRestoreGState(context);
}
