1 files changed, 101 insertions, 0 deletions
diff --git a/src/gui/painting/qcosmeticstroker_p.h b/src/gui/painting/qcosmeticstroker_p.h
new file mode 100644
index 0000000..bc6dd76
--- /dev/null
+++ b/src/gui/painting/qcosmeticstroker_p.h
@@ -0,0 +1,101 @@
+#ifndef QCOSMETICSTROKER_P_H
+#define QCOSMETICSTROKER_P_H
+
+#include <private/qdrawhelper_p.h>
+#include <private/qvectorpath_p.h>
+#include <private/qpaintengine_raster_p.h>
+#include <qpen.h>
+
+class QCosmeticStroker;
+
+
+typedef void (*StrokeLine)(QCosmeticStroker *stroker, qreal x1, qreal y1, qreal x2, qreal y2, int caps);
+
+class QCosmeticStroker
+{
+public:
+    struct Point {
+        int x;
+        int y;
+    };
+    struct PointF {
+        qreal x;
+        qreal y;
+    };
+
+    enum Caps {
+        NoCaps = 0,
+        CapBegin = 0x1,
+        CapEnd = 0x2,
+    };
+
+    // used to avoid drop outs or duplicated points
+    enum Direction {
+        TopToBottom,
+        BottomToTop,
+        LeftToRight,
+        RightToLeft
+    };
+
+    QCosmeticStroker(QRasterPaintEngineState *s, const QRect &dr)
+        : state(s),
+          clip(dr),
+          pattern(0),
+          reversePattern(0),
+          patternSize(0),
+          patternLength(0),
+          patternOffset(0),
+          current_span(0),
+          lastDir(LeftToRight),
+          lastAxisAligned(false)
+    { setup(); }
+    ~QCosmeticStroker() { free(pattern); free(reversePattern); }
+    void drawLine(const QPointF &p1, const QPointF &p2);
+    void drawPath(const QVectorPath &path);
+    void drawPoints(const QPoint *points, int num);
+    void drawPoints(const QPointF *points, int num);
+
+
+    QRasterPaintEngineState *state;
+    QRect clip;
+    // clip bounds in real
+    qreal xmin, xmax;
+    qreal ymin, ymax;
+
+    StrokeLine stroke;
+    bool drawCaps;
+
+    int *pattern;
+    int *reversePattern;
+    int patternSize;
+    int patternLength;
+    int patternOffset;
+
+    enum { NSPANS = 255 };
+    QT_FT_Span spans[NSPANS];
+    int current_span;
+    ProcessSpans blend;
+
+    int opacity;
+
+    uint color;
+    uint *pixels;
+    int ppl;
+
+    Direction lastDir;
+    Point lastPixel;
+    bool lastAxisAligned;
+
+private:
+    void setup();
+
+    void renderCubic(const QPointF &p1, const QPointF &p2, const QPointF &p3, const QPointF &p4, int caps);
+    void renderCubicSubdivision(PointF *points, int level, int caps);
+    // used for closed subpaths
+    void calculateLastPoint(qreal rx1, qreal ry1, qreal rx2, qreal ry2);
+
+public:
+    bool clipLine(qreal &x1, qreal &y1, qreal &x2, qreal &y2);
+};
+
+#endif // QCOSMETICLINE_H