diff options
Diffstat (limited to 'cocoa')
| -rw-r--r-- | cocoa/PlatCocoa.h | 1 | ||||
| -rw-r--r-- | cocoa/PlatCocoa.mm | 44 |
2 files changed, 45 insertions, 0 deletions
diff --git a/cocoa/PlatCocoa.h b/cocoa/PlatCocoa.h index 6a9bada96..940de83d5 100644 --- a/cocoa/PlatCocoa.h +++ b/cocoa/PlatCocoa.h @@ -94,6 +94,7 @@ public: void RoundedRectangle(PRectangle rc, ColourDesired fore, ColourDesired back) override; void AlphaRectangle(PRectangle rc, int cornerSize, ColourDesired fill, int alphaFill, ColourDesired outline, int alphaOutline, int flags) override; + void GradientRectangle(PRectangle rc, const std::vector<ColourStop> &stops, GradientOptions options) override; void DrawRGBAImage(PRectangle rc, int width, int height, const unsigned char *pixelsImage) override; void Ellipse(PRectangle rc, ColourDesired fore, ColourDesired back) override; void Copy(PRectangle rc, Scintilla::Point from, Surface &surfaceSource) override; diff --git a/cocoa/PlatCocoa.mm b/cocoa/PlatCocoa.mm index 0e1e1544c..7d7eafb42 100644 --- a/cocoa/PlatCocoa.mm +++ b/cocoa/PlatCocoa.mm @@ -641,6 +641,50 @@ void Scintilla::SurfaceImpl::AlphaRectangle(PRectangle rc, int cornerSize, Colou } } +void Scintilla::SurfaceImpl::GradientRectangle(PRectangle rc, const std::vector<ColourStop> &stops, GradientOptions options) { + if (!gc) { + return; + } + + CGPoint ptStart = CGPointMake(rc.left, rc.top); + CGPoint ptEnd = CGPointMake(rc.left, rc.bottom); + if (options == GradientOptions::leftToRight) { + ptEnd = CGPointMake(rc.right, rc.top); + } + + std::vector<CGFloat> components; + std::vector<CGFloat> locations; + for (const ColourStop &stop : stops) { + locations.push_back(stop.position); + components.push_back(stop.colour.GetRedComponent()); + components.push_back(stop.colour.GetGreenComponent()); + components.push_back(stop.colour.GetBlueComponent()); + components.push_back(stop.colour.GetAlphaComponent()); + } + + CGColorSpaceRef colorSpace = CGColorSpaceCreateDeviceRGB(); + if (!colorSpace) { + return; + } + + CGGradientRef gradiantRef = CGGradientCreateWithColorComponents(colorSpace, + components.data(), + locations.data(), + locations.size()); + if (gradiantRef) { + CGContextSaveGState(gc); + CGRect rect = PRectangleToCGRect(rc); + CGContextClipToRect(gc, rect); + CGContextBeginPath(gc); + CGContextAddRect(gc, rect); + CGContextClosePath(gc); + CGContextDrawLinearGradient(gc, gradiantRef, ptStart, ptEnd, 0); + CGGradientRelease(gradiantRef); + CGContextRestoreGState(gc); + } + CGColorSpaceRelease(colorSpace); +} + static void ProviderReleaseData(void *, const void *data, size_t) { const unsigned char *pixels = static_cast<const unsigned char *>(data); delete []pixels; |