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* Source/cairo/CairoGState.m
(-DPSsetstrokeadjust:): Implement. (-DPSinitgraphics): Set _strokeadjust to 1 by default. (-_adjustPath:): Implement new method that place the path to pixel boundaries. (-_setPath:): Change method definition adding fillOrClip argument. Use _adjustPath: method. (-DPSclip): Change call of _setPath: to new format. (-DPSeoclip): Ditto. (-DPSeofill): Ditto. (-DPSfill): Ditto. (-DPSstroke): Ditto. (-compositerect:op:): Ditto. * Headers/cairo/CairoGState.h: Define _strokeadjust variable. git-svn-id: svn+ssh://svn.gna.org/svn/gnustep/libs/back/trunk@25299 72102866-910b-0410-8b05-ffd578937521
This commit is contained in:
Sergii Stoian
parent
5cb04d880e
commit
ed77ebb967
2 changed files with 91 additions and 8 deletions
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@ -34,6 +34,8 @@
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@public
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cairo_t *_ct;
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CairoSurface *_surface;
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int _strokeadjust;
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}
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- (void) GSCurrentSurface: (CairoSurface **)surface: (int *)x : (int *)y;
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@ -375,6 +375,8 @@
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cairo_set_line_width(_ct, 1.0);
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cairo_set_operator(_ct, CAIRO_OPERATOR_OVER);
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cairo_new_path(_ct);
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_strokeadjust = 1;
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}
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- (void) DPScurrentflat: (float *)flatness
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@ -525,20 +527,99 @@
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- (void) DPSsetstrokeadjust: (int)b
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{
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// FIXME
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_strokeadjust = b;
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}
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/*
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* Path operations
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*/
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- (void) _setPath
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- (void) _adjustPath: (float)offs
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{
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unsigned count = [path elementCount];
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NSBezierPathElement type, last_type = NSNotFound;
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NSPoint points[3], last_points[3];
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unsigned i;
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last_points[0].x = 0.0;
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last_points[0].y = 0.0;
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for (i = 0; i < count; i++)
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{
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type = [path elementAtIndex:i associatedPoints:points];
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if (type == NSCurveToBezierPathElement) break;
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if (type == NSClosePathBezierPathElement)
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{
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[path elementAtIndex:0 associatedPoints:points];
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if (fabs(last_points[0].x - points[0].x) < 1.0)
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{
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last_points[0].x = floorf(last_points[0].x) + offs;
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points[0].x = last_points[0].x;
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}
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else if (fabs(last_points[0].y - points[0].y) < 1.0)
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{
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last_points[0].y = floorf(last_points[0].y) + offs;
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points[0].y = last_points[0].y;
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}
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[path setAssociatedPoints:points atIndex:0];
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[path setAssociatedPoints:last_points atIndex:i-1];
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}
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else if (fabs(last_points[0].x - points[0].x) < 1.0)
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{ // vertical
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points[0].x = floorf(points[0].x) + offs;
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points[0].y = floorf(points[0].y) + 0.0;
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[path setAssociatedPoints:points atIndex:i];
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if (type == NSLineToBezierPathElement)
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{
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last_points[0].x = points[0].x;
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[path setAssociatedPoints:last_points atIndex:i-1];
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}
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}
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else if (fabs(last_points[0].y - points[0].y) < 1.0)
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{ // horizontal
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points[0].x = floorf(points[0].x) + 0.0;
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points[0].y = floorf(points[0].y) + offs;
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[path setAssociatedPoints:points atIndex:i];
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if (type == NSLineToBezierPathElement)
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{
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last_points[0].y = points[0].y;
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[path setAssociatedPoints:last_points atIndex:i-1];
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}
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}
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else
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{
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points[0].x = floorf(points[0].x);
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points[0].y = floorf(points[0].y);
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[path setAssociatedPoints:points atIndex:i];
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}
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last_type = type;
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last_points[0].x = points[0].x;
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last_points[0].y = points[0].y;
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}
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}
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- (void) _setPath: (BOOL)fillOrClip
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{
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unsigned count = [path elementCount];
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unsigned i;
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SEL elmsel = @selector(elementAtIndex:associatedPoints:);
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IMP elmidx = [path methodForSelector: elmsel];
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if (_strokeadjust)
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{
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float offs;
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if ((remainderf(cairo_get_line_width(_ct), 2.0) == 0.0)
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|| fillOrClip == YES)
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offs = 0.0;
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else
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offs = 0.5;
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[self _adjustPath:offs];
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}
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for (i = 0; i < count; i++)
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{
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NSBezierPathElement type;
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@ -571,7 +652,7 @@
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{
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if (_ct)
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{
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[self _setPath];
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[self _setPath:YES];
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cairo_clip(_ct);
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}
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}
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@ -580,7 +661,7 @@
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{
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if (_ct)
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{
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[self _setPath];
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[self _setPath:YES];
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cairo_set_fill_rule(_ct, CAIRO_FILL_RULE_EVEN_ODD);
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cairo_clip(_ct);
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cairo_set_fill_rule(_ct, CAIRO_FILL_RULE_WINDING);
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@ -591,7 +672,7 @@
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{
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if (_ct)
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{
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[self _setPath];
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[self _setPath:YES];
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cairo_set_fill_rule(_ct, CAIRO_FILL_RULE_EVEN_ODD);
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cairo_fill(_ct);
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cairo_set_fill_rule(_ct, CAIRO_FILL_RULE_WINDING);
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@ -602,7 +683,7 @@
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{
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if (_ct)
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{
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[self _setPath];
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[self _setPath:YES];
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cairo_fill(_ct);
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}
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}
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@ -619,7 +700,7 @@
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{
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if (_ct)
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{
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[self _setPath];
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[self _setPath:NO];
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cairo_stroke(_ct);
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}
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}
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@ -967,7 +1048,7 @@ _set_op(cairo_t *ct, NSCompositingOperation op)
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// This is almost a rectclip::::, but the path stays unchanged.
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path = [NSBezierPath bezierPathWithRect: aRect];
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[path transformUsingAffineTransform: ctm];
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[self _setPath];
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[self _setPath:YES];
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cairo_clip(_ct);
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cairo_paint(_ct);
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cairo_restore(_ct);
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