1 files changed, 132 insertions, 0 deletions
diff --git a/chalk/plugins/paintops/defaultpaintops/kis_penop.cpp b/chalk/plugins/paintops/defaultpaintops/kis_penop.cpp
new file mode 100644
index 000000000..4a8da9a16
--- /dev/null
+++ b/chalk/plugins/paintops/defaultpaintops/kis_penop.cpp
@@ -0,0 +1,132 @@
+/*
+ *  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 <tqrect.h>
+
+#include <kdebug.h>
+
+#include "kis_brush.h"
+#include "kis_global.h"
+#include "kis_paint_device.h"
+#include "tdelocale.h"
+#include "kis_layer.h"
+#include "kis_painter.h"
+#include "kis_types.h"
+#include "kis_paintop.h"
+#include "kis_iterator.h"
+#include "kis_selection.h"
+#include "kis_iterators_pixel.h"
+
+#include "kis_penop.h"
+
+
+KisPaintOp * KisPenOpFactory::createOp(const KisPaintOpSettings */*settings*/, KisPainter * painter)
+{ 
+    KisPaintOp * op = new KisPenOp(painter); 
+    TQ_CHECK_PTR(op);
+    return op; 
+}
+
+
+KisPenOp::KisPenOp(KisPainter * painter)
+    : super(painter) 
+{
+}
+
+KisPenOp::~KisPenOp() 
+{
+}
+
+void KisPenOp::paintAt(const KisPoint &pos, const KisPaintInformation& info)
+{
+    if (!m_painter) return;
+    KisPaintDeviceSP device = m_painter->device();
+    if (!device) return;
+    KisBrush * brush = m_painter->brush();
+    if (!brush) return;
+    if (! brush->canPaintFor(info) )
+        return;
+
+    KisPoint hotSpot = brush->hotSpot(info);
+    KisPoint pt = pos - hotSpot;
+
+    TQ_INT32 x = pt.roundX();
+    TQ_INT32 y = pt.roundY();
+
+    KisPaintDeviceSP dab = 0;
+    if (brush->brushType() == IMAGE || 
+        brush->brushType() == PIPE_IMAGE) {
+        dab = brush->image(device->colorSpace(), info);
+    }
+    else {
+        // Compute mask without sub-pixel positioning
+        KisAlphaMaskSP mask = brush->mask(info);
+        dab = computeDab(mask);
+    }
+
+    m_painter->setPressure(info.pressure);
+    TQRect dabRect = TQRect(0, 0, brush->maskWidth(info), brush->maskHeight(info));
+    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;
+
+    KisColorSpace * cs = dab->colorSpace();
+
+    // Set all alpha > opaque/2 to opaque, the rest to transparent.
+    // XXX: Using 4/10 as the 1x1 circle brush paints nothing with 0.5.
+
+    KisRectIteratorPixel pixelIt = dab->createRectIterator(dabRect.x(), dabRect.y(), dabRect.width(), dabRect.height(), true);
+
+    while (!pixelIt.isDone()) {
+        TQ_UINT8 alpha = cs->getAlpha(pixelIt.rawData());
+
+        if (alpha < (4 * OPACITY_OPAQUE) / 10) {
+            cs->setAlpha(pixelIt.rawData(), OPACITY_TRANSPARENT, 1);
+        } else {
+            cs->setAlpha(pixelIt.rawData(), OPACITY_OPAQUE, 1);
+        }
+
+        ++pixelIt;
+    }
+
+    TQ_INT32 sx = dstRect.x() - x;
+    TQ_INT32 sy = dstRect.y() - y;
+    TQ_INT32 sw = dstRect.width();
+    TQ_INT32 sh = dstRect.height();
+
+    if (m_source->hasSelection()) {
+        m_painter->bltSelection(dstRect.x(), dstRect.y(), m_painter->compositeOp(), dab.data(),
+                                m_source->selection(), m_painter->opacity(), sx, sy, sw, sh);
+    }
+    else {
+        m_painter->bitBlt(dstRect.x(), dstRect.y(), m_painter->compositeOp(), dab.data(), m_painter->opacity(), sx, sy, sw, sh);
+    }
+
+    m_painter->addDirtyRect(dstRect);
+}