void JBGStrokePathByLines(CGContextRef ctx, CGPathRef path, CGColorRef color_1, CGFloat width_1, CGColorRef color_2, CGFloat width_2, CGColorRef color_3, CGFloat width_3)
{
if (width_1 > 0.0f)
{
CGContextSetLineWidth(ctx, width_1);
CGContextAddPath(ctx, path);
CGContextSetStrokeColorWithColor(ctx, color_1);
CGContextStrokePath(ctx);
}
if (width_2 > 0.0f)
{
CGContextAddPath(ctx, path);
CGContextSetStrokeColorWithColor(ctx, color_2);
CGContextSetLineWidth(ctx, width_2);
CGContextStrokePath(ctx);
}
if (width_3 > 0.0f)
{
CGContextAddPath(ctx, path);
CGContextSetStrokeColorWithColor(ctx, color_3);
CGContextSetLineWidth(ctx, width_3);
CGContextStrokePath(ctx);
}
}
void doStrokeWithCTM(CGContextRef context)
{
CGContextTranslateCTM(context, 150., 180.);
CGContextSetLineWidth(context, 10);
// Draw ellipse 1 with a uniform stroke.
CGContextSaveGState(context);
// Scale the CTM so the circular arc will be elliptical.
CGContextScaleCTM(context, 2, 1);
CGContextBeginPath(context);
// Create an arc that is a circle.
CGContextAddArc(context, 0., 0., 45., 0., 2*M_PI, 0);
// Restore the context parameters prior to stroking the path.
// CGContextRestoreGState does not affect the path in the context.
CGContextRestoreGState(context);
CGContextStrokePath(context);
// *** was 0, -120
CGContextTranslateCTM(context, 220., 0.);
// Draw ellipse 2 with non-uniform stroke.
CGContextSaveGState(context);
// Scale the CTM so the circular arc will be elliptical.
CGContextScaleCTM(context, 2, 1);
CGContextBeginPath(context);
// Create an arc that is a circle.
CGContextAddArc(context, 0., 0., 45., 0., 2*M_PI, 0);
// Stroke the path with the scaled coordinate system in effect.
CGContextStrokePath(context);
CGContextRestoreGState(context);
}
//-----------------------------------------------------------------------------------
static void DrawTheMTView(CGContextRef ctx, MTViewData* data)
{
CGRect dstRect;
#if CG_COORDINATES
TransformHIViewToCG(ctx, data->theView);
#endif
// Draw the image first, before stroking the path; otherwise the path gets overwritten
if (data->theImage != NULL)
{
dstRect = CGRectMake(0, 0, CGImageGetWidth(data->theImage), CGImageGetHeight(data->theImage));
#if CG_COORDINATES
CGContextDrawImage(ctx, dstRect, data->theImage);
#else
HIViewDrawCGImage(ctx, &dstRect, data->theImage);
#endif
}
if (data->thePath != NULL)
{
CGPathApply(data->thePath, (void*)ctx, MyCGPathApplier);
CGContextStrokePath(ctx);
}
} // DrawTheMTView
void GraphicsContext::drawConvexPolygon(size_t npoints, const FloatPoint* points, bool shouldAntialias)
{
if (paintingDisabled())
return;
if (npoints <= 1)
return;
CGContextRef context = platformContext();
CGContextSaveGState(context);
CGContextSetShouldAntialias(context, shouldAntialias);
CGContextBeginPath(context);
CGContextMoveToPoint(context, points[0].x(), points[0].y());
for (size_t i = 1; i < npoints; i++)
CGContextAddLineToPoint(context, points[i].x(), points[i].y());
CGContextClosePath(context);
if (fillColor().alpha())
CGContextEOFillPath(context);
if (strokeStyle() != NoStroke)
CGContextStrokePath(context);
CGContextRestoreGState(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);
}
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) );
}
static void Quartz_Polyline(int n, double *x, double *y,
R_GE_gcontext *gc,
NewDevDesc *dd)
{
CGPoint *lines;
int i;
CGrafPtr savedPort, port;
QuartzDesc *xd = (QuartzDesc*)dd->deviceSpecific;
lines = (CGPoint *)malloc(sizeof(CGPoint)*n);
if(lines == NULL)
return;
for (i = 0; i < n; i++) {
lines[i].x = (float)x[i];
lines[i].y = (float)y[i];
}
CGContextSaveGState( GetContext(xd) );
CGContextBeginPath( GetContext(xd) );
Quartz_SetLineProperties(gc, dd);
CGContextAddLines( GetContext(xd), &lines[0], n );
Quartz_SetStroke( gc->col, gc->gamma, dd);
CGContextStrokePath( GetContext(xd) );
CGContextRestoreGState( GetContext(xd) );
}
static void Quartz_Line(double x1, double y1, double x2, double y2,
R_GE_gcontext *gc,
NewDevDesc *dd)
{
QuartzDesc *xd = (QuartzDesc*)dd->deviceSpecific;
CGPoint lines[ 2 ];
Rect rect;
CGContextSaveGState( GetContext(xd) );
CGContextBeginPath( GetContext(xd) );
lines[0].x = (float)x1;
lines[0].y = (float)y1;
lines[1].x = (float)x2;
lines[1].y = (float)y2;
Quartz_SetLineProperties(gc, dd);
CGContextAddLines( GetContext(xd), &lines[0], 2 );
Quartz_SetStroke( gc->col, gc->gamma, dd);
CGContextStrokePath( GetContext(xd) );
CGContextRestoreGState( GetContext(xd) );
}
FX_BOOL CFX_QuartzDeviceDriver::DrawCosmeticLine(FX_FLOAT x1,
FX_FLOAT y1,
FX_FLOAT x2,
FX_FLOAT y2,
FX_DWORD argb,
int alphaFlag ,
void* iccTransform ,
int blend_type )
{
CGBlendMode mode = GetCGBlendMode(blend_type);
if (mode != kCGBlendModeNormal) {
CGContextSetBlendMode(_context, mode);
}
CGPoint pt = CGPointApplyAffineTransform(CGPointMake(x1, y1), _foxitDevice2User);
x1 = pt.x;
y1 = pt.y;
pt = CGPointApplyAffineTransform(CGPointMake(x2, y2), _foxitDevice2User);
x2 = pt.x;
y2 = pt.y;
FX_INT32 a, r, g, b;
ArgbDecode(argb, a, r, g, b);
CGContextSetRGBStrokeColor(_context,
r / 255.f,
g / 255.f,
b / 255.f,
a / 255.f);
CGContextMoveToPoint(_context, x1, y1);
CGContextAddLineToPoint(_context, x2, y2);
CGContextStrokePath(_context);
if (mode != kCGBlendModeNormal) {
CGContextSetBlendMode(_context, kCGBlendModeNormal);
}
return TRUE;
}
void MacVegaPrinterListener::DrawEllipse(const OpRect& rect, UINT32 width)
{
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(width != 1)
{
CGContextSetLineWidth(m_ctx, width);
}
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);
CGContextStrokePath(m_ctx);
if(width != 1)
{
CGContextSetLineWidth(m_ctx, 1);
}
if(cgrect.size.width != cgrect.size.height)
{
CGContextScaleCTM(m_ctx, 1.0, cgrect.size.width/cgrect.size.height);
}
}
void doPixelAlignedFillAndStroke(CGContextRef context)
{
CGPoint p1 = CGPointMake(16.7, 17.8);
CGPoint p2 = CGPointMake(116.7, 17.8);
CGRect r = CGRectMake(16.7, 20.8, 100.6, 100.6);
CGSize s;
CGContextSetLineWidth(context, 2);
CGContextSetRGBFillColor(context, 1., 0., 0., 1.);
CGContextSetRGBStrokeColor(context, 1., 0., 0., 1.);
// Unaligned drawing.
CGContextBeginPath(context);
CGContextMoveToPoint(context, p1.x, p1.y);
CGContextAddLineToPoint(context, p2.x, p2.y);
CGContextStrokePath(context);
CGContextFillRect(context, r);
// Translate to the right before drawing along
// aligned coordinates.
CGContextTranslateCTM(context, 106, 0);
// Aligned drawing.
// Compute the length of the line in user space.
s = CGSizeMake(p2.x - p1.x, p2.y - p1.y);
CGContextBeginPath(context);
// Align the starting point to a device
// pixel boundary.
p1 = alignPointToUserSpace(context, p1);
// Establish the starting point of the line.
CGContextMoveToPoint(context, p1.x, p1.y);
// Compute the line length as an integer
// number of device pixels.
s = alignSizeToUserSpace(context, s);
CGContextAddLineToPoint(context,
p1.x + s.width,
p1.y + s.height);
CGContextStrokePath(context);
// Compute a rect that is aligned to device
// space with a width that is an integer
// number of device pixels.
r = alignRectToUserSpace(context, r);
CGContextFillRect(context, r);
}
/*
frameOval : Draws an outline of an oval just inside the bounding rectangle that you specify.
Parameter Descriptions
context : The CG context to render to.
r : The CG rectangle that defines the ovalÕs boundary.
*/
void frameOval(CGContextRef context, CGRect r)
{
// Add a path for the oval to this context
addOvalToPath(context,r);
// Stroke the path
CGContextStrokePath(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;
}
/*
strokeRoundedRect : Draws a rounded rectangle with the current stroke 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 strokeRoundedRect(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);
// Stroke the path
CGContextStrokePath(context);
}
void frameArc(CGContextRef context, CGRect r, int startAngle, int arcAngle)
{
// Signal the start of a path
CGContextBeginPath(context);
// Add to the path the arc of the oval that fits inside the rectangle.
pathForArc(context,r,startAngle,arcAngle);
// Stroke the path
CGContextStrokePath(context);
}
bool GiCanvasIos::rawLine(const GiContext* ctx, float x1, float y1, float x2, float y2)
{
bool ret = m_draw->setPen(ctx);
if (ret)
{
CGContextMoveToPoint(m_draw->getContext(), x1, y1);
CGContextAddLineToPoint(m_draw->getContext(), x2, y2);
CGContextStrokePath(m_draw->getContext());
}
return ret;
}
void JBGFillGradientCircle(CGContextRef ctx, CGPoint center_1, CGFloat r_1, CGPoint center_2, CGFloat r_2, CGGradientRef fill_gradient, CGColorRef stroke_color)
{
if (fill_gradient)
{
CGGradientDrawingOptions options = kCGGradientDrawsBeforeStartLocation;
CGContextDrawRadialGradient(ctx, fill_gradient, center_1, r_1, center_2, r_2, options);
}
if (stroke_color)
{
CGContextSetStrokeColorWithColor(ctx, stroke_color);
CGContextAddArc(ctx, center_2.x, center_2.y, r_2, 0, M_PI * 2, false);
CGContextStrokePath(ctx);
}
}
bool GiCanvasIos::rawLines(const GiContext* ctx, const Point2d* pxs, int count)
{
bool ret = m_draw->setPen(ctx) && count > 1;
if (ret)
{
CGContextMoveToPoint(m_draw->getContext(), pxs[0].x, pxs[0].y);
for (int i = 1; i < count; i++) {
CGContextAddLineToPoint(m_draw->getContext(), pxs[i].x, pxs[i].y);
}
CGContextStrokePath(m_draw->getContext());
}
return ret;
}
void CanvasRenderingContext2D::stroke()
{
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()) {
float lineWidth = state().m_lineWidth;
float inset = -lineWidth / 2;
CGRect boundingRect = CGRectInset(CGContextGetPathBoundingBox(c->platformContext()), inset, inset);
willDraw(boundingRect);
}
if (state().m_strokeStyle->gradient()) {
// Shading works on the entire clip region, so convert the current path to a clip.
c->save();
CGContextReplacePathWithStrokedPath(c->platformContext());
CGContextClip(c->platformContext());
CGContextDrawShading(c->platformContext(), state().m_strokeStyle->gradient()->platformShading());
c->restore();
} else {
if (state().m_strokeStyle->pattern())
applyStrokePattern();
CGContextStrokePath(c->platformContext());
}
#elif PLATFORM(QT)
QPainterPath* path = state().m_path.platformPath();
QPainter* p = static_cast<QPainter*>(c->platformContext());
willDraw(path->controlPointRect());
if (state().m_strokeStyle->gradient()) {
p->save();
p->setBrush(*(state().m_strokeStyle->gradient()->platformShading()));
p->strokePath(*path, p->pen());
p->restore();
} else {
if (state().m_strokeStyle->pattern())
applyStrokePattern();
p->strokePath(*path, p->pen());
}
#endif
clearPathForDashboardBackwardCompatibilityMode();
}
void MacVegaPrinterListener::DrawLine(const OpPoint& from, const OpPoint& to, UINT32 width)
{
if(width != 1)
{
CGContextSetLineWidth(m_ctx, width);
}
CGContextBeginPath(m_ctx);
CGContextMoveToPoint(m_ctx, from.x, m_winHeight - from.y);
CGContextAddLineToPoint(m_ctx, to.x, m_winHeight - to.y);
CGContextStrokePath(m_ctx);
if(width != 1)
{
CGContextSetLineWidth(m_ctx, 1);
}
}
bool GiCanvasIos::rawBeziers(const GiContext* ctx, const Point2d* pxs, int count)
{
bool ret = m_draw->setPen(ctx) && count > 1;
if (ret)
{
CGContextMoveToPoint(m_draw->getContext(), pxs[0].x, pxs[0].y);
for (int i = 1; i + 2 < count; i += 3)
{
CGContextAddCurveToPoint(m_draw->getContext(),
pxs[i+0].x, pxs[i+0].y,
pxs[i+1].x, pxs[i+1].y,
pxs[i+2].x, pxs[i+2].y);
}
CGContextStrokePath(m_draw->getContext());
}
return ret;
}
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 GraphicsContext::strokePath(const Path& path)
{
if (paintingDisabled())
return;
CGContextRef context = platformContext();
CGContextBeginPath(context);
CGContextAddPath(context, path.platformPath());
if (m_state.strokeGradient) {
CGContextSaveGState(context);
CGContextReplacePathWithStrokedPath(context);
CGContextClip(context);
CGContextConcatCTM(context, m_state.strokeGradient->gradientSpaceTransform());
m_state.strokeGradient->paint(this);
CGContextRestoreGState(context);
return;
}
if (m_state.strokePattern)
applyStrokePattern();
CGContextStrokePath(context);
}
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);
}
void GraphicsContext::strokeArc(const IntRect& rect, int startAngle, int angleSpan)
{
if (paintingDisabled() || strokeStyle() == NoStroke || strokeThickness() <= 0.0f)
return;
CGContextRef context = platformContext();
CGContextSaveGState(context);
CGContextBeginPath(context);
CGContextSetShouldAntialias(context, false);
int x = rect.x();
int y = rect.y();
float w = (float)rect.width();
float h = (float)rect.height();
float scaleFactor = h / w;
float reverseScaleFactor = w / h;
if (w != h)
scale(FloatSize(1, scaleFactor));
float hRadius = w / 2;
float vRadius = h / 2;
float fa = startAngle;
float falen = fa + angleSpan;
float start = -fa * piFloat / 180.0f;
float end = -falen * piFloat / 180.0f;
CGContextAddArc(context, x + hRadius, (y + vRadius) * reverseScaleFactor, hRadius, start, end, true);
if (w != h)
scale(FloatSize(1, reverseScaleFactor));
float width = strokeThickness();
int patWidth = 0;
switch (strokeStyle()) {
case DottedStroke:
patWidth = (int)(width / 2);
break;
case DashedStroke:
patWidth = 3 * (int)(width / 2);
break;
default:
break;
}
if (patWidth) {
// Example: 80 pixels with a width of 30 pixels.
// Remainder is 20. The maximum pixels of line we could paint
// will be 50 pixels.
int distance;
if (hRadius == vRadius)
distance = static_cast<int>((piFloat * hRadius) / 2.0f);
else // We are elliptical and will have to estimate the distance
distance = static_cast<int>((piFloat * sqrtf((hRadius * hRadius + vRadius * vRadius) / 2.0f)) / 2.0f);
int remainder = distance % patWidth;
int coverage = distance - remainder;
int numSegments = coverage / patWidth;
float patternOffset = 0.0f;
// Special case 1px dotted borders for speed.
if (patWidth == 1)
patternOffset = 1.0f;
else {
bool evenNumberOfSegments = !(numSegments % 2);
if (remainder)
evenNumberOfSegments = !evenNumberOfSegments;
if (evenNumberOfSegments) {
if (remainder) {
patternOffset += patWidth - remainder;
patternOffset += remainder / 2.0f;
} else
patternOffset = patWidth / 2.0f;
} else {
if (remainder)
patternOffset = (patWidth - remainder) / 2.0f;
}
}
const CGFloat dottedLine[2] = { patWidth, patWidth };
CGContextSetLineDash(context, patternOffset, dottedLine, 2);
}
CGContextStrokePath(context);
CGContextRestoreGState(context);
}
// This is only used to draw borders.
void GraphicsContext::drawLine(const IntPoint& point1, const IntPoint& point2)
{
if (paintingDisabled())
return;
if (strokeStyle() == NoStroke)
return;
float width = strokeThickness();
FloatPoint p1 = point1;
FloatPoint p2 = point2;
bool isVerticalLine = (p1.x() == p2.x());
// For odd widths, we add in 0.5 to the appropriate x/y so that the float arithmetic
// works out. For example, with a border width of 3, KHTML will pass us (y1+y2)/2, e.g.,
// (50+53)/2 = 103/2 = 51 when we want 51.5. It is always true that an even width gave
// us a perfect position, but an odd width gave us a position that is off by exactly 0.5.
if (strokeStyle() == DottedStroke || strokeStyle() == DashedStroke) {
if (isVerticalLine) {
p1.move(0, width);
p2.move(0, -width);
} else {
p1.move(width, 0);
p2.move(-width, 0);
}
}
if (((int)width) % 2) {
if (isVerticalLine) {
// We're a vertical line. Adjust our x.
p1.move(0.5f, 0.0f);
p2.move(0.5f, 0.0f);
} else {
// We're a horizontal line. Adjust our y.
p1.move(0.0f, 0.5f);
p2.move(0.0f, 0.5f);
}
}
int patWidth = 0;
switch (strokeStyle()) {
case NoStroke:
case SolidStroke:
break;
case DottedStroke:
patWidth = (int)width;
break;
case DashedStroke:
patWidth = 3 * (int)width;
break;
}
CGContextRef context = platformContext();
if (shouldAntialias())
CGContextSetShouldAntialias(context, false);
if (patWidth) {
CGContextSaveGState(context);
// Do a rect fill of our endpoints. This ensures we always have the
// appearance of being a border. We then draw the actual dotted/dashed line.
setCGFillColor(context, strokeColor(), strokeColorSpace()); // The save/restore make it safe to mutate the fill color here without setting it back to the old color.
if (isVerticalLine) {
CGContextFillRect(context, FloatRect(p1.x() - width / 2, p1.y() - width, width, width));
CGContextFillRect(context, FloatRect(p2.x() - width / 2, p2.y(), width, width));
} else {
CGContextFillRect(context, FloatRect(p1.x() - width, p1.y() - width / 2, width, width));
CGContextFillRect(context, FloatRect(p2.x(), p2.y() - width / 2, width, width));
}
// Example: 80 pixels with a width of 30 pixels.
// Remainder is 20. The maximum pixels of line we could paint
// will be 50 pixels.
int distance = (isVerticalLine ? (point2.y() - point1.y()) : (point2.x() - point1.x())) - 2*(int)width;
int remainder = distance % patWidth;
int coverage = distance - remainder;
int numSegments = coverage / patWidth;
float patternOffset = 0.0f;
// Special case 1px dotted borders for speed.
if (patWidth == 1)
patternOffset = 1.0f;
else {
bool evenNumberOfSegments = !(numSegments % 2);
if (remainder)
evenNumberOfSegments = !evenNumberOfSegments;
if (evenNumberOfSegments) {
if (remainder) {
patternOffset += patWidth - remainder;
patternOffset += remainder / 2;
} else
patternOffset = patWidth / 2;
} else {
if (remainder)
patternOffset = (patWidth - remainder)/2;
}
}
const CGFloat dottedLine[2] = { patWidth, patWidth };
CGContextSetLineDash(context, patternOffset, dottedLine, 2);
}
CGContextBeginPath(context);
CGContextMoveToPoint(context, p1.x(), p1.y());
CGContextAddLineToPoint(context, p2.x(), p2.y());
CGContextStrokePath(context);
if (patWidth)
CGContextRestoreGState(context);
if (shouldAntialias())
CGContextSetShouldAntialias(context, true);
}
void QuartzWindow::draw_line(int x1, int y1, int x2, int y2) {
CGContextBeginPath(myContext);
CGContextMoveToPoint(myContext, x1, y1);
CGContextAddLineToPoint(myContext, x2, y2);
CGContextStrokePath(myContext);
}
static void MusicBoxDrawIndicator(HIViewRef view, CGContextRef mboxctx)
{
if (!showIndicator)
return;
// Bar
const double length[] = { 1.0, 1.0 };
CGContextSetLineWidth(mboxctx, mbxBarWidth);
CGContextSetLineDash(mboxctx, 0, length, 2);
CGContextSetLineJoin(mboxctx, kCGLineJoinMiter);
CGContextBeginPath(mboxctx);
double x = mbxOffsetX + mbxMarginX + mbxBarWidth / 2.0;
for (int h = 0; h < 8; h++)
{
// Inactive
CGContextSetRGBStrokeColor(mboxctx, (196.0 / 256.0), (200.0 / 256.0), (176.0 / 256.0), 1.0);
CGContextMoveToPoint (mboxctx, x, mbxOffsetY + mbxMarginY);
CGContextAddLineToPoint(mboxctx, x, mbxOffsetY + mbxMarginY + mbxBarHeight);
CGContextMoveToPoint (mboxctx, x + mbxRightBarX, mbxOffsetY + mbxMarginY);
CGContextAddLineToPoint(mboxctx, x + mbxRightBarX, mbxOffsetY + mbxMarginY + mbxBarHeight);
CGContextStrokePath(mboxctx);
// Max
Channel *ch = &SoundData.channels[h];
ch->envx = ch->xenvx >> 4;
ch-> left_vol_level = (ch->xenvx * ch->volume_left ) >> 11;
ch->right_vol_level = (ch->xenvx * ch->volume_right) >> 11;
short vl = ch-> left_vol_level;
short vr = ch->right_vol_level;
long long currentTime;
if (vl <= 0) vl = 0; else if (vl > 64) vl = 64; else vl = (short) (yyscale * sqrt((double) vl)) & (~0 << 1);
if (vr <= 0) vr = 0; else if (vr > 64) vr = 64; else vr = (short) (yyscale * sqrt((double) vr)) & (~0 << 1);
if (vl < prevLVol[h]) vl = ((prevLVol[h] + vl) >> 1);
if (vr < prevRVol[h]) vr = ((prevRVol[h] + vr) >> 1);
Microseconds((UnsignedWide *) ¤tTime);
// left
if ((vl >= prevLMax[h]) && (vl > prevLVol[h]))
{
barTimeL[h] = currentTime;
prevLMax[h] = vl;
}
else
if ((prevLMax[h] > 0) && (barTimeL[h] + 1000000 > currentTime))
{
CGContextSetRGBStrokeColor(mboxctx, (22.0 / 256.0), (156.0 / 256.0), (20.0 / 256.0), (double) (barTimeL[h] + 1000000 - currentTime) / 1000000.0);
CGContextMoveToPoint (mboxctx, x, mbxOffsetY + mbxMarginY + (double) (prevLMax[h] - 2));
CGContextAddLineToPoint(mboxctx, x, mbxOffsetY + mbxMarginY + (double) (prevLMax[h] ));
CGContextStrokePath(mboxctx);
}
else
prevLMax[h] = 0;
prevLVol[h] = vl;
// right
if ((vr >= prevRMax[h]) && (vr > prevRVol[h]))
{
barTimeR[h] = currentTime;
prevRMax[h] = vr;
}
else
if ((prevRMax[h] > 0) && (barTimeR[h] + 1000000 > currentTime))
{
CGContextSetRGBStrokeColor(mboxctx, (22.0 / 256.0), (156.0 / 256.0), (20.0 / 256.0), (double) (barTimeR[h] + 1000000 - currentTime) / 1000000.0);
CGContextMoveToPoint (mboxctx, x + mbxRightBarX, mbxOffsetY + mbxMarginY + (double) (prevRMax[h] - 2));
CGContextAddLineToPoint(mboxctx, x + mbxRightBarX, mbxOffsetY + mbxMarginY + (double) (prevRMax[h] ));
CGContextStrokePath(mboxctx);
}
else
prevRMax[h] = 0;
prevRVol[h] = vr;
// Active
CGContextSetRGBStrokeColor(mboxctx, (22.0 / 256.0), (22.0 / 256.0), (20.0 / 256.0), 1.0);
CGContextMoveToPoint (mboxctx, x, mbxOffsetY + mbxMarginY);
CGContextAddLineToPoint(mboxctx, x, mbxOffsetY + mbxMarginY + (double) vl);
CGContextStrokePath(mboxctx);
CGContextMoveToPoint (mboxctx, x + mbxRightBarX, mbxOffsetY + mbxMarginY);
CGContextAddLineToPoint(mboxctx, x + mbxRightBarX, mbxOffsetY + mbxMarginY + (double) vr);
CGContextStrokePath(mboxctx);
x += (mbxBarWidth + mbxBarSpace);
}
}
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);
}
