1 files changed, 117 insertions, 0 deletions
diff --git a/chalk/colorspaces/wetsticky/brushop/kis_wsbrushop.cpp b/chalk/colorspaces/wetsticky/brushop/kis_wsbrushop.cpp
new file mode 100644
index 000000000..ed828bf51
--- /dev/null
+++ b/chalk/colorspaces/wetsticky/brushop/kis_wsbrushop.cpp
@@ -0,0 +1,117 @@
+/*
+ *  Copyright (c) 2005 Boudewijn Rempt <boud@valdyas.org>
+ *
+ *  This program is free software; you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation; either version 2 of the License, or
+ *  (at your option) any later version.
+ *
+ *  This program is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with this program; if not, write to the Free Software
+ *  Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+ */
+
+#include <tqrect.h>
+
+#include <kdebug.h>
+
+#include "kis_brush.h"
+#include "kis_global.h"
+#include "kis_paint_device.h"
+#include "kis_painter.h"
+#include "kis_types.h"
+#include "kis_paintop.h"
+
+#include "kis_wsbrushop.h"
+
+KisPaintOp * KisWSBrushOpFactory::createOp(const KisPaintOpSettings */*settings*/, KisPainter * painter)
+{
+    KisPaintOp * op = new KisWSBrushOp(painter);
+    TQ_CHECK_PTR(op);
+    return op;
+}
+
+KisWSBrushOp::KisWSBrushOp(KisPainter * painter)
+    : super(painter)
+{
+}
+
+KisWSBrushOp::~KisWSBrushOp()
+{
+}
+
+void KisWSBrushOp::paintAt(const KisPoint &pos,
+             const double pressure,
+             const double /*xTilt*/,
+             const double /*yTilt*/)
+{
+    // Painting should be implemented according to the following algorithm:
+    // retrieve brush
+    // if brush == mask
+    //          retrieve mask
+    // else if brush == image
+    //          retrieve image
+    // subsample (mask | image) for position -- pos should be double!
+    // apply filters to mask (colour | gradient | pattern | etc.
+    // composite filtered mask into temporary layer
+    // composite temporary layer into target layer
+    // @see: doc/brush.txt
+
+    if (!m_painter -> device()) return;
+
+    KisBrush *brush = m_painter -> brush();
+    
+    Q_ASSERT(brush);
+    if (!brush) return;
+    
+    KisPaintDeviceSP device = m_painter -> device();
+
+    KisPoint hotSpot = brush -> hotSpot(pressure);
+    KisPoint pt = pos - hotSpot;
+
+    // Split the coordinates into integer plus fractional parts. The integer
+    // is where the dab will be positioned and the fractional part determines
+    // the sub-pixel positioning.
+    TQ_INT32 x;
+    double xFraction;
+    TQ_INT32 y;
+    double yFraction;
+
+    splitCoordinate(pt.x(), &x, &xFraction);
+    splitCoordinate(pt.y(), &y, &yFraction);
+
+    KisLayerSP dab = 0;
+
+    if (brush -> brushType() == IMAGE || brush -> brushType() == PIPE_IMAGE) {
+        dab = brush -> image(device -> colorSpace(), pressure, xFraction, yFraction);
+    }
+    else {
+        KisAlphaMaskSP mask = brush -> mask(pressure, xFraction, yFraction);
+        dab = computeDab(mask);
+    }
+    m_painter -> setPressure(pressure);
+
+    TQRect dabRect = TQRect(0, 0, brush -> maskWidth(pressure), brush -> maskHeight(pressure));
+    TQRect dstRect = TQRect(x, y, dabRect.width(), dabRect.height());
+
+    KisImage * image = device -> image();
+    
+    if (image != 0) {
+        dstRect &= image -> bounds();
+    }
+    
+    if (dstRect.isNull() || dstRect.isEmpty() || !dstRect.isValid()) return;
+
+    TQ_INT32 sx = dstRect.x() - x;
+    TQ_INT32 sy = dstRect.y() - y;
+    TQ_INT32 sw = dstRect.width();
+    TQ_INT32 sh = dstRect.height();
+
+    m_painter -> bltSelection(dstRect.x(), dstRect.y(), m_painter -> compositeOp(), dab.data(), m_painter -> opacity(), sx, sy, sw, sh);
+    m_painter -> addDirtyRect(dstRect);
+}