1 files changed, 180 insertions, 0 deletions
diff --git a/chalk/colorspaces/wetsticky/kis_ws_engine_filter.cpp b/chalk/colorspaces/wetsticky/kis_ws_engine_filter.cpp
new file mode 100644
index 000000000..c53f6ea08
--- /dev/null
+++ b/chalk/colorspaces/wetsticky/kis_ws_engine_filter.cpp
@@ -0,0 +1,180 @@
+/*
+ *  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 <stdlib.h>
+#include <vector>
+#include <math.h>
+
+#include <tqpoint.h>
+#include <tqspinbox.h>
+#include <tqrect.h>
+#include <tqcolor.h>
+
+#include <tdelocale.h>
+#include <kiconloader.h>
+#include <kinstance.h>
+#include <tdemessagebox.h>
+#include <kstandarddirs.h>
+#include <tdetempfile.h>
+#include <kdebug.h>
+#include <kgenericfactory.h>
+#include <knuminput.h>
+
+#include <kis_debug_areas.h>
+#include <kis_image.h>
+#include <kis_iterators_pixel.h>
+#include <kis_layer.h>
+#include <kis_filter_registry.h>
+#include <kis_debug_areas.h>
+#include <kis_types.h>
+#include <kis_paint_device.h>
+#include <kis_colorspace_registry.h>
+
+#include "kis_ws_engine_filter.h"
+#include "kis_wet_sticky_colorspace.h"
+
+/**
+ * The Wet & Sticky Engine filter is based on the wet & sticky model
+ * for computer painting designed by Tunde Cockshott and implemented
+ * by David England and Kevin Waite.
+ *
+ * The filter implements the engine that moves the paint according to
+ * gravity, viscosity and absorbency.
+ *
+ */
+KisWSEngineFilter::KisWSEngineFilter() : KisFilter(id(), "", i18n("&Wet & Sticky paint engine..."))
+{
+}
+
+
+/**
+ * Sets the POINT giving the coordinate location of the next
+ * cell on the canvas to be visited.  There is an even probability
+ * of each cell being visited.
+ */
+TQPoint next_cell(TQ_UINT32 width, TQ_UINT32 height)
+{
+    return TQPoint(random() * width,  random() * height);
+}
+
+void single_step(KisColorSpace * cs, KisPaintDeviceSP src,  KisPaintDeviceSP dst, const TQRect & rect, bool native)
+{
+    using namespace WetAndSticky;
+
+
+    TQPoint p = next_cell( rect.width(),  rect.height() );
+
+    // XXX: We could optimize by randomly doing lines of 64 pixels
+    // -- maybe that would be enough to avoid the windscreen wiper
+    // effect.
+    KisHLineIterator iter = src -> createHLineIterator(p.x(), p.y(), 1,  false);
+
+    TQ_UINT8 *orig = iter.rawData();
+    TQ_UINT8 *pix = orig;
+
+     if (!orig) return;
+
+    if (!native ) {
+        TQColor c;
+        TQ_UINT8 opacity;
+
+        src -> colorSpace() -> toTQColor(pix, &c, &opacity);
+        TQ_UINT8 *pix = new TQ_UINT8[sizeof( cell )];
+        TQ_CHECK_PTR(pix);
+
+        cs -> fromTQColor(c, opacity, pix);
+    }
+
+    // Process
+
+    CELL_PTR c = ( CELL_PTR )pix;
+
+
+    if ( !native ) {
+        // Set RGBA back
+    }
+
+}
+
+void KisWSEngineFilter::process(KisPaintDeviceSP src, KisPaintDeviceSP dst, KisFilterConfiguration* configuration, const TQRect& rect)
+{
+
+    m_src = src;
+    m_dst = dst;
+    m_cfg = ( KisWSEngineFilterConfiguration * )configuration;
+    m_rect = rect;
+
+
+    kdDebug(DBG_AREA_FILTERS) << "WSEnginefilter called!\n";
+    TQTime t;
+    t.restart();
+
+    // Two possibilities: we have our own, cool w&s pixel, and
+    // then we have real data to mess with, or we're filtering a
+    // boring shoup-model paint device and we can only work by
+    // synthesizing w&s pixels.
+    bool native = false;
+    // XXX: We need a better way to ID color strategies
+    if ( src -> colorSpace() -> id() == KisID("W&S","") ) native = true;
+
+    // XXX: We need a better way to ID color strategies
+    KisColorSpace * cs = KisColorSpaceRegistry::instance()->get("W&S");
+
+    TQ_UINT32 pixels = 400; //m_cfg -> pixels();
+
+    kdDebug(DBG_AREA_FILTERS) << "Going to singlestep " << pixels << " pixels.\n";
+
+    // Determine whether we want an infinite loop
+    if ( pixels == 0 ) {
+        while ( true )
+            single_step (cs, src, dst, rect, native);
+    }
+    // Or not.
+    else {
+        for ( TQ_UINT32 i = 0; i < pixels; ++i ) {
+            single_step (cs, src, dst, rect, native);
+        }
+    }
+    kdDebug(DBG_AREA_FILTERS) << "Done in " << t.elapsed() << " ms\n";
+
+}
+
+KisFilterConfigWidget * KisWSEngineFilter::createConfigurationWidget(TQWidget* parent, KisPaintDeviceSP dev)
+{
+//     KisWSEngineFilterConfigurationWidget* kefcw = new KisWSEngineFilterConfigurationWidget(this,parent, "");
+//     kdDebug(DBG_AREA_FILTERS) << kefcw << endl;
+//     return kefcw  ;
+    return 0;
+}
+
+KisFilterConfiguration* KisWSEngineFilter::configuration(TQWidget* nwidget, KisPaintDeviceSP dev)
+{
+//     KisWSEngineFilterConfigurationWidget* widget = (KisWSEngineFilterConfigurationWidget*) nwidget;
+
+//     if( widget == 0 )
+//     {
+//         return new KisWSEngineFilterConfiguration(30);
+//     } else {
+//                 TQ_UINT32 depth = widget -> baseWidget() -> depthSpinBox -> value();
+
+//                 return new KisWSEngineFilterConfiguration(depth);
+//         }
+
+
+    return new KisWSEngineFilterConfiguration( m_rect.height() * m_rect.width() );
+}
+