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author | Michele Calgaro <[email protected]> | 2021-05-23 20:48:35 +0900 |
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committer | Michele Calgaro <[email protected]> | 2021-05-29 15:16:28 +0900 |
commit | 8b78a8791bc539bcffe7159f9d9714d577cb3d7d (patch) | |
tree | 1328291f966f19a22d7b13657d3f01a588eb1083 /chalk/core/kis_histogram.cpp | |
parent | 95834e2bdc5e01ae1bd21ac0dfa4fa1d2417fae9 (diff) | |
download | koffice-8b78a8791bc539bcffe7159f9d9714d577cb3d7d.tar.gz koffice-8b78a8791bc539bcffe7159f9d9714d577cb3d7d.zip |
Renaming of files in preparation for code style tools.
Signed-off-by: Michele Calgaro <[email protected]>
Diffstat (limited to 'chalk/core/kis_histogram.cpp')
-rw-r--r-- | chalk/core/kis_histogram.cpp | 215 |
1 files changed, 215 insertions, 0 deletions
diff --git a/chalk/core/kis_histogram.cpp b/chalk/core/kis_histogram.cpp new file mode 100644 index 00000000..bece7c9a --- /dev/null +++ b/chalk/core/kis_histogram.cpp @@ -0,0 +1,215 @@ +/* + * Copyright (c) 2004 Boudewijn Rempt + * (c) 2005 Bart Coppens <[email protected]> + * + * 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 <kdebug.h> +#include <tqdatetime.h> // ### Debug + +#include "kis_types.h" +#include "kis_histogram.h" +#include "kis_paint_layer.h" +#include "kis_iterators_pixel.h" +#include "kis_colorspace.h" +#include "kis_debug_areas.h" + +KisHistogram::KisHistogram(KisPaintLayerSP layer, + KisHistogramProducerSP producer, + const enumHistogramType type) +{ + m_dev = layer->paintDevice(); + m_type = type; + m_producer = producer; + m_selection = false; + m_channel = 0; + + updateHistogram(); +} + +KisHistogram::KisHistogram(KisPaintDeviceSP paintdev, + KisHistogramProducerSP producer, + const enumHistogramType type) +{ + m_dev = paintdev; + m_type = type; + m_producer = producer; + m_selection = false; + m_channel = 0; + + updateHistogram(); +} + +KisHistogram::~KisHistogram() +{ +} + +void KisHistogram::updateHistogram() +{ + TQ_INT32 x,y,w,h; + m_dev->exactBounds(x,y,w,h); + KisRectIteratorPixel srcIt = m_dev->createRectIterator(x,y,w,h, false); + KisColorSpace* cs = m_dev->colorSpace(); + + TQTime t; + t.start(); + + // Let the producer do it's work + m_producer->clear(); + int i; + // Handle degenerate case (this happens with the accumulating histogram, + // which has an empty device) + if (srcIt.isDone()) { + m_producer->addRegionToBin(0, 0, 0, cs); + } else { + while ( !srcIt.isDone() ) { + i = srcIt.nConseqPixels(); + m_producer->addRegionToBin(srcIt.rawData(), srcIt.selectionMask(), i, cs); + srcIt += i; + } + } + + computeHistogram(); +} + +void KisHistogram::computeHistogram() +{ + m_completeCalculations = calculateForRange(m_producer->viewFrom(), + m_producer->viewFrom() + m_producer->viewWidth()); + + if (m_selection) { + m_selectionCalculations = calculateForRange(m_selFrom, m_selTo); + } else { + m_selectionCalculations.clear(); + } + +#if 1 + dump(); +#endif +} + +KisHistogram::Calculations KisHistogram::calculations() { + return m_completeCalculations.at(m_channel); +} + +KisHistogram::Calculations KisHistogram::selectionCalculations() { + return m_selectionCalculations.at(m_channel); +} + +TQValueVector<KisHistogram::Calculations> KisHistogram::calculateForRange(double from, double to) { + TQValueVector<Calculations> calculations; + uint count = m_producer->channels().count(); + + for (uint i = 0; i < count; i++) { + calculations.append(calculateSingleRange(i, from, to)); + } + + return calculations; +} + +KisHistogram::Calculations KisHistogram::calculateSingleRange(int channel, double from, double to) { + Calculations c; + + // XXX If from == to, we only want a specific bin, handle that properly! + + double max = from, min = to, total = 0.0, mean = 0.0; //, median = 0.0, stddev = 0.0; + TQ_UINT32 high = 0, low = (TQ_UINT32) -1, count = 0; + + if (m_producer->count() == 0) { + // We won't get anything, even if a range is specified + // XXX make sure all initial '0' values are correct here! + return c; + } + + TQ_INT32 totbins = m_producer->numberOfBins(); + TQ_UINT32 current; + + // convert the double range into actual bins: + double factor = static_cast<double>(totbins) / m_producer->viewWidth(); + + TQ_INT32 fromBin = static_cast<TQ_INT32>((from - m_producer->viewFrom()) * factor); + TQ_INT32 toBin = fromBin + static_cast<TQ_INT32>((to - from) * factor); + + // Min, max, count, low, high + for (TQ_INT32 i = fromBin; i < toBin; i++) { + current = m_producer->getBinAt(channel, i); + double pos = static_cast<double>(i) / factor + from; + if (current > high) + high = current; + if (current < low) + low = current; + if (current > 0) { + if (pos < min) + min = pos; + if (pos > max) + max = pos; + } + // We do the count here as well. + // we can't use m_producer->count() for this, because of the range + count += current; + total += current * pos; + } + + if (count > 0) + mean = total / count; + + c.m_high = high; + c.m_low = low; + c.m_count = count; + c.m_min = min; + c.m_max = max; + c.m_mean = mean; + c.m_total = total; + + return c; +} + + +void KisHistogram::dump() { + kdDebug(DBG_AREA_MATH) << "Histogram\n"; + + switch (m_type) { + case LINEAR: + kdDebug(DBG_AREA_MATH) << "Linear histogram\n"; + break; + case LOGARITHMIC: + kdDebug(DBG_AREA_MATH) << "Logarithmic histogram\n"; + } + + kdDebug(DBG_AREA_MATH) << "Dumping channel " << m_channel << endl; + Calculations c = calculations(); + +/* for( int i = 0; i <256; ++i ) { + kdDebug(DBG_AREA_MATH) << "Value " + << TQString().setNum(i) + << ": " + << TQString().setNum(m_values[i]) + << "\n"; + }*/ + kdDebug(DBG_AREA_MATH) << "\n"; + + kdDebug(DBG_AREA_MATH) << "Max: " << TQString(TQString().setNum(c.getMax())) << "\n"; + kdDebug(DBG_AREA_MATH) << "Min: " << TQString(TQString().setNum(c.getMin())) << "\n"; + kdDebug(DBG_AREA_MATH) << "High: " << TQString(TQString().setNum(c.getHighest())) << "\n"; + kdDebug(DBG_AREA_MATH) << "Low: " << TQString(TQString().setNum(c.getLowest())) << "\n"; + kdDebug(DBG_AREA_MATH) << "Mean: " << TQString(m_producer->positionToString(c.getMean())) << "\n"; + kdDebug(DBG_AREA_MATH) << "Total: " << TQString(TQString().setNum(c.getTotal())) << "\n"; +// kdDebug(DBG_AREA_MATH) << "Median: " << TQString().setNum(m_median) << "\n"; +// kdDebug(DBG_AREA_MATH) << "Stddev: " << TQString().setNum(m_stddev) << "\n"; +// kdDebug(DBG_AREA_MATH) << "percentile: " << TQString().setNum(m_percentile) << "\n"; + + kdDebug(DBG_AREA_MATH) << "\n"; +} |