diff options
Diffstat (limited to 'src/opengl')
| -rw-r--r-- | src/opengl/gl2paintengineex/qtriangulatingstroker.cpp | 28 |
1 files changed, 24 insertions, 4 deletions
diff --git a/src/opengl/gl2paintengineex/qtriangulatingstroker.cpp b/src/opengl/gl2paintengineex/qtriangulatingstroker.cpp index d952988..16340a1 100644 --- a/src/opengl/gl2paintengineex/qtriangulatingstroker.cpp +++ b/src/opengl/gl2paintengineex/qtriangulatingstroker.cpp @@ -111,7 +111,7 @@ void QTriangulatingStroker::process(const QVectorPath &path, const QPen &pen, co // depending on if the pen is cosmetic or not. // // The curvyness value of PI/14 was based on, - // arcLength=2*PI*r/4=PI/2 and splitting length into somewhere + // arcLength = 2*PI*r/4 = PI*r/2 and splitting length into somewhere // between 3 and 8 where 5 seemed to be give pretty good results // hence: Q_PI/14. Lower divisors will give more detail at the // direct cost of performance. @@ -487,6 +487,8 @@ void QDashedStrokeProcessor::process(const QVectorPath &path, const QPen &pen, c const QPainterPath::ElementType *types = path.elements(); int count = path.elementCount(); + bool cosmetic = pen.isCosmetic(); + m_points.reset(); m_types.reset(); @@ -495,10 +497,26 @@ void QDashedStrokeProcessor::process(const QVectorPath &path, const QPen &pen, c width = 1; m_dash_stroker.setDashPattern(pen.dashPattern()); - m_dash_stroker.setStrokeWidth(pen.isCosmetic() ? width * m_inv_scale : width); + m_dash_stroker.setStrokeWidth(cosmetic ? width * m_inv_scale : width); m_dash_stroker.setMiterLimit(pen.miterLimit()); m_dash_stroker.setClipRect(clip); - qreal curvyness = sqrt(width) * m_inv_scale / 8; + + float curvynessAdd, curvynessMul, roundness = 0; + + // simplfy pens that are thin in device size (2px wide or less) + if (width < 2.5 && (cosmetic || m_inv_scale == 1)) { + curvynessAdd = 0.5; + curvynessMul = CURVE_FLATNESS / m_inv_scale; + roundness = 1; + } else if (cosmetic) { + curvynessAdd= width / 2; + curvynessMul= CURVE_FLATNESS; + roundness = qMax<int>(4, width * CURVE_FLATNESS); + } else { + curvynessAdd = width * m_inv_scale; + curvynessMul = CURVE_FLATNESS / m_inv_scale; + roundness = qMax<int>(4, width * curvynessMul); + } if (count < 2) return; @@ -533,9 +551,11 @@ void QDashedStrokeProcessor::process(const QVectorPath &path, const QPen &pen, c *(((const QPointF *) pts) + 1), *(((const QPointF *) pts) + 2)); QRectF bounds = b.bounds(); - int threshold = qMin<float>(64, qMax(bounds.width(), bounds.height()) * curvyness); + float rad = qMax(bounds.width(), bounds.height()); + int threshold = qMin<float>(64, (rad + curvynessAdd) * curvynessMul); if (threshold < 4) threshold = 4; + qreal threshold_minus_1 = threshold - 1; for (int i=0; i<threshold; ++i) { QPointF pt = b.pointAt(i / threshold_minus_1); |