1 files changed, 113 insertions, 0 deletions
diff --git a/chalk/core/kis_paintop.cpp b/chalk/core/kis_paintop.cpp
new file mode 100644
index 000000000..59cfef6b2
--- /dev/null
+++ b/chalk/core/kis_paintop.cpp
@@ -0,0 +1,113 @@
+/*
+ *  Copyright (c) 2002 Patrick Julien <freak@codepimps.org>
+ *  Copyright (c) 2004 Boudewijn Rempt <boud@valdyas.org>
+ *  Copyright (c) 2004 Clarence Dang <dang@kde.org>
+ *  Copyright (c) 2004 Adrian Page <adrian@pagenet.plus.com>
+ *  Copyright (c) 2004 Cyrille Berger <cberger@cberger.net>
+ *
+ *  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 "tqwidget.h"
+#include "kis_painter.h"
+#include "kis_layer.h"
+#include "kis_types.h"
+#include "kis_paintop.h"
+#include "kis_alpha_mask.h"
+#include "kis_point.h"
+#include "kis_colorspace.h"
+#include "kis_global.h"
+#include "kis_iterators_pixel.h"
+#include "kis_color.h"
+
+KisPaintOp::KisPaintOp(KisPainter * painter) 
+    : m_dab(0)
+{
+    m_painter = painter;
+    setSource(painter->device());
+}
+
+KisPaintOp::~KisPaintOp()
+{
+}
+
+KisPaintDeviceSP KisPaintOp::computeDab(KisAlphaMaskSP mask) {
+    return computeDab(mask, m_painter->device()->colorSpace());
+}
+
+KisPaintDeviceSP KisPaintOp::computeDab(KisAlphaMaskSP mask, KisColorSpace *cs)
+{
+    // XXX: According to the SeaShore source, the Gimp uses a
+    // temporary layer the size of the layer that is being painted
+    // on. This layer is cleared between painting actions. Our
+    // temporary layer, dab, is for every paintAt, composited with
+    // the target layer. We only use a real temporary layer for things
+    // like filter tools.
+
+    if(!m_dab || m_dab->colorSpace() != cs)
+        m_dab = new KisPaintDevice(cs, "dab");
+    TQ_CHECK_PTR(m_dab);
+
+    KisColor kc = m_painter->paintColor();
+
+    KisColorSpace * colorSpace = m_dab->colorSpace();
+
+    TQ_INT32 pixelSize = colorSpace->pixelSize();
+
+    TQ_INT32 maskWidth = mask->width();
+    TQ_INT32 maskHeight = mask->height();
+
+    // Convert the kiscolor to the right colorspace.
+    kc.convertTo(colorSpace);
+
+    KisHLineIteratorPixel hiter = m_dab->createHLineIterator(0, 0, maskWidth, true);
+    for (int y = 0; y < maskHeight; y++)
+    {
+        int x=0;
+        while(! hiter.isDone())
+        {
+            // XXX: Set mask
+            colorSpace->setAlpha(kc.data(), mask->alphaAt(x++, y), 1);
+            memcpy(hiter.rawData(), kc.data(), pixelSize);
+            ++hiter;
+        }
+        hiter.nextRow();
+    }
+
+    return m_dab;
+}
+
+void KisPaintOp::splitCoordinate(double coordinate, TQ_INT32 *whole, double *fraction)
+{
+    TQ_INT32 i = static_cast<TQ_INT32>(coordinate);
+
+    if (coordinate < 0) {
+        // We always want the fractional part to be positive.
+        // E.g. -1.25 becomes -2 and +0.75
+        i--;
+    }
+
+    double f = coordinate - i;
+
+    *whole = i;
+    *fraction = f;
+}
+
+void KisPaintOp::setSource(KisPaintDeviceSP p) {
+    Q_ASSERT(p);
+    m_source = p;
+}
+
+
+KisPaintOpSettings* KisPaintOpFactory::settings(TQWidget* /*parent*/, const KisInputDevice& /*inputDevice*/) { return 0; }