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Toshihiro Shimizu 890ddd
Toshihiro Shimizu 890ddd
#include "tcolorstyles.h"
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#include <qvboxlayout></qvboxlayout>
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#include <qcombobox></qcombobox>
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#include <qpushbutton></qpushbutton>
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#include <qicon></qicon>
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#include <qstackedwidget></qstackedwidget>
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#include <qpainter></qpainter>
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#include "toonzqt/histogram.h"
shun_iwasawa 3cc41f
#include "toonzqt/gutil.h"
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const int HistogramGraph::drawMargin = 10;
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//*****************************************************************************
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//    Local namespace
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//*****************************************************************************
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namespace {
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void computeGreyValues(const TRasterGR8P &ras, int *greyValues) {
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  int y, lx = ras->getLx(), ly = ras->getLy();
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  TPixelGR8 *pix, *endPix;
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  for (y = 0; y < ly; ++y)
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    for (pix = ras->pixels(y), endPix = pix + lx; pix < endPix; ++pix)
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      ++greyValues[pix->value];
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}
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//-----------------------------------------------------------------------------
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void computeGreyValues(const TRasterGR16P &ras, int *greyValues) {
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  int y, lx = ras->getLx(), ly = ras->getLy();
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  TPixelGR16 *pix, *endPix;
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  for (y = 0; y < ly; ++y)
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    for (pix = ras->pixels(y), endPix = pix + lx; pix < endPix; ++pix)
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      ++greyValues[pix->value >> 8];
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}
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//-----------------------------------------------------------------------------
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void computeRGBMValues32(const TRaster32P &ras, int (*rgbmValues)[256]) {
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  int y, lx = ras->getLx(), ly = ras->getLy();
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  TPixel32 *pix, *endPix;
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  for (y = 0; y < ly; ++y)
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    for (pix = ras->pixels(y), endPix = pix + lx; pix < endPix; ++pix) {
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      // NOTE: The insertion order is related to the way channels are
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      // displayed inside the histogram's QStackedWidget instance
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      if (pix->m) {
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        ++rgbmValues[0][pix->r];
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        ++rgbmValues[1][pix->g];
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        ++rgbmValues[2][pix->b];
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      }
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      ++rgbmValues[3][pix->m];
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    }
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}
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//-----------------------------------------------------------------------------
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void computeRGBMValues64(const TRaster64P &ras, int (*rgbmValues)[256]) {
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  int y, lx = ras->getLx(), ly = ras->getLy();
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  TPixel64 *pix, *endPix;
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  for (y = 0; y < ly; ++y)
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    for (pix = ras->pixels(y), endPix = pix + lx; pix < endPix; ++pix) {
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      // NOTE: The insertion order is related to the way channels are
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      // displayed inside the histogram's QStackedWidget instance
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      if (pix->m) {
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        ++rgbmValues[0][pix->r >> 8];
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        ++rgbmValues[1][pix->g >> 8];
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        ++rgbmValues[2][pix->b >> 8];
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      }
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      ++rgbmValues[3][pix->m >> 8];
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    }
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}
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//-----------------------------------------------------------------------------
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void computeRGBMValues(const TRasterCM32P &ras, TPaletteP pal,
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                       int (*rgbmValues)[256]) {
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  assert(pal);
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  int y, lx = ras->getLx(), ly = ras->getLy();
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  TPixelCM32 *pix, *endPix;
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  int styleId;
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  TColorStyle *colorStyle;
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  TPixel32 color;
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  for (y = 0; y < ly; ++y)
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    for (pix = ras->pixels(y), endPix = pix + lx; pix < endPix; ++pix) {
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      styleId    = (pix->getTone() < 127) ? pix->getInk() : pix->getPaint();
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      colorStyle = pal->getStyle(styleId);
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      if (!colorStyle) continue;
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      color = colorStyle->getAverageColor();
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      if (color.m) {
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        ++rgbmValues[0][color.r];
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        ++rgbmValues[1][color.g];
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        ++rgbmValues[2][color.b];
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      }
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      ++rgbmValues[3][color.m];
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    }
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}
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//-----------------------------------------------------------------------------
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void computeRGB(int (*channelValues)[256], int *rgbValues) {
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  int i;
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  for (i = 0; i < 256; ++i)
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    rgbValues[i] =
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        channelValues[0][i] + channelValues[1][i] + channelValues[2][i];
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}
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//-----------------------------------------------------------------------------
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void computeRGBM(int (*channelValues)[256], int *rgbmValues) {
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  int i;
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  for (i          = 0; i < 256; ++i)
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    rgbmValues[i] = channelValues[0][i] + channelValues[1][i] +
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                    channelValues[2][i] + channelValues[3][i];
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}
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}  // namespace
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//=============================================================================
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// HistogramGraph
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//-----------------------------------------------------------------------------
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HistogramGraph::HistogramGraph(QWidget *parent, QColor color)
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    : QWidget(parent)
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    , m_color(color)
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    , m_height(120)
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    , m_values(0)
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    , m_logScale(false) {
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  if (m_color.alpha() == 0) m_color = Qt::black;
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  setMinimumWidth(256 + drawMargin * 2 + 2);
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  setMinimumHeight(m_height + drawMargin);
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}
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//-----------------------------------------------------------------------------
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HistogramGraph::~HistogramGraph() { m_values.clear(); }
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//-----------------------------------------------------------------------------
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void HistogramGraph::setAlphaMask(int value) { m_color.setAlpha(value); }
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//-----------------------------------------------------------------------------
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void HistogramGraph::setValues(const int values[]) {
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  m_values.clear();
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  m_values.resize(256);
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  int i;
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  double maxValue = 0;
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  for (i = 0; i < 256; i++) {
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    int count = m_values[i]        = values[i];
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    if (maxValue < count) maxValue = count;
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  }
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  m_viewValues.clear();
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  m_logViewValues.clear();
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  m_viewValues.resize(256);
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  m_logViewValues.resize(256);
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  double logMaxValue = log(1.0 + maxValue);
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  for (i = 0; i < 256; i++) {
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    m_viewValues[i] = double(values[i]) * double(m_height) / maxValue;
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    m_logViewValues[i] =
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        double(log(1.0 + values[i])) * double(m_height) / logMaxValue;
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  }
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}
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//-----------------------------------------------------------------------------
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void HistogramGraph::draw(QPainter *p, QPoint translation) {
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  int x0 = translation.x() + drawMargin;
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  int y0 = translation.y() + drawMargin - 2;
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  int w  = width() - 2 * drawMargin;
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  int h  = m_height + 1;
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  p->setPen(Qt::NoPen);
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  p->setBrush(Qt::white);
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  p->drawRect(x0, y0, w - 1, h);
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  p->setBrush(Qt::NoBrush);
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  p->setPen(Qt::gray);
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  int step   = w * 0.25;
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  int deltaX = x0 + 1 + step;
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  int y1     = y0 + h;
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  p->drawLine(deltaX, y0 + 1, deltaX, y1);
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  deltaX += step;
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  p->drawLine(deltaX, y0 + 1, deltaX, y1);
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  deltaX += step;
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  p->drawLine(deltaX, y0 + 1, deltaX, y1);
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  p->drawRect(x0, y0, w - 1, h);
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  if (m_values.size() == 0) return;
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  const QVector<int> &viewValues = m_logScale ? m_logViewValues : m_viewValues;</int>
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  p->setPen(m_color);
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  w  = w - 2;
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  x0 = x0 + 1;
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  y1 = y1 - 1;
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  int i;
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  double gap = double(viewValues.size()) /
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               double(w); /*-- 1チャンネル値あたりのグラフの横幅 --*/
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  for (i = 0; i < w; i++) {
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    int j = i * gap;
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    assert(j >= 0 && j < viewValues.size());
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    int v = viewValues[j];
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    if (v <= 0) continue;
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    int x = x0 + i;
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    p->drawLine(x, y1 - v + 1, x, y1);
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  }
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}
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//-----------------------------------------------------------------------------
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void HistogramGraph::paintEvent(QPaintEvent *event) {
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  QPainter p(this);
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  draw(&p);
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}
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//=============================================================================
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// ChannelBar
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//-----------------------------------------------------------------------------
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ChannelBar::ChannelBar(QWidget *parent, QColor color, bool isHorizontal)
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    : QWidget(parent)
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    , m_color(color)
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    , m_isHorizontal(isHorizontal)
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    , m_colorBarLength(13)
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    , m_drawNumbers(true) {
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  int d = 256 + HistogramGraph::drawMargin * 2 + 2;
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  if (m_isHorizontal)
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    setMinimumWidth(d);
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  else
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    setFixedHeight(d);  // La barra verticale ha la size fissa
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  setDrawNumbers(m_drawNumbers);
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  if (color == Qt::black) m_color = Qt::white;
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}
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//-----------------------------------------------------------------------------
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ChannelBar::~ChannelBar() {}
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//-----------------------------------------------------------------------------
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void ChannelBar::setDrawNumbers(bool onOff) {
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  if (m_isHorizontal)
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    setFixedHeight(onOff ? m_colorBarLength * 2 + 2 : m_colorBarLength + 2);
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  else
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    setFixedWidth(onOff ? m_colorBarLength + 20 + 2 : m_colorBarLength + 2);
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}
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//-----------------------------------------------------------------------------
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void ChannelBar::draw(QPainter *p, QPoint translation) {
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  // Calcolo i parametri necessari al draw a seconda del caso in cui mi trovo.
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  int space = HistogramGraph::drawMargin;
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  int w, h, x0, y0;
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  QRect rect;
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  QPoint initialPoint, finalPoint, delta;
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  QColor initialColor, finalColor;
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  if (m_isHorizontal) {
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    w            = width() - 2 * HistogramGraph::drawMargin;
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    h            = m_colorBarLength;
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    x0           = translation.x() + space;
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    y0           = translation.y();
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    initialPoint = QPoint(x0, 0);
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    finalPoint   = QPoint(w + x0, 0);
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    initialColor = Qt::black;
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    finalColor   = m_color;
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    rect         = QRect(x0 - space, y0 + h, 20, 20);
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    delta        = QPoint(w / 4, 0);
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  } else {
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    w            = m_colorBarLength;
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    h            = height() - 2 * HistogramGraph::drawMargin;
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    x0           = translation.x() + width() - w;
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    y0           = translation.y() + space;
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    initialPoint = QPoint(0, y0);
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    finalPoint   = QPoint(0, h + y0);
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    initialColor = m_color;
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    finalColor   = Qt::black;
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    rect         = QRect(0, h + y0 - space, 20, 20);
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    delta        = QPoint(0, -h / 4);
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  }
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  if (m_color == QColor(0, 0, 0, 0)) {
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    static QPixmap checkboard(":Resources/backg.png");
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    p->drawTiledPixmap(x0, y0, w, h, checkboard);
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    QColor color = initialColor;
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    initialColor = finalColor;
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    finalColor   = color;
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  }
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  QLinearGradient linearGrad(initialPoint, finalPoint);
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  linearGrad.setColorAt(0, initialColor);
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  linearGrad.setColorAt(1, finalColor);
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  p->setBrush(QBrush(linearGrad));
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  p->setPen(Qt::black);
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  p->drawRect(x0, y0, w - 1, h - 1);
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  if (m_drawNumbers) {
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    p->drawText(rect, Qt::AlignCenter, QString::number(0));
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    rect.translate(delta);
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    p->drawText(rect, Qt::AlignCenter, QString::number(64));
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    rect.translate(delta);
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    p->drawText(rect, Qt::AlignCenter, QString::number(128));
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    rect.translate(delta);
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    p->drawText(rect, Qt::AlignCenter, QString::number(192));
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    rect.translate(delta);
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    p->drawText(rect, Qt::AlignCenter, QString::number(255));
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  }
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}
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//-----------------------------------------------------------------------------
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void ChannelBar::paintEvent(QPaintEvent *event) {
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  QPainter p(this);
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  draw(&p);
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}
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//=============================================================================
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// HistogramView
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//-----------------------------------------------------------------------------
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HistogramView::HistogramView(QWidget *parent, QColor color)
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    : QWidget(parent), m_drawnWidget(parent) {
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  setMinimumWidth(256 + 10 * 2 + 2);   // 10 == margin of internal widget
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  setMinimumHeight(120 + 10 * 2 + 2);  // 10 == margin of internal widget
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  QVBoxLayout *mainLayout = new QVBoxLayout(this);
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  mainLayout->setMargin(0);
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  mainLayout->setSpacing(7);
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  m_histogramGraph = new HistogramGraph(this, color);
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  m_colorBar       = new ChannelBar(this, color);
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  mainLayout->addWidget(m_histogramGraph);
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  mainLayout->addWidget(m_colorBar);
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  setSizePolicy(QSizePolicy::MinimumExpanding, QSizePolicy::MinimumExpanding);
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  setLayout(mainLayout);
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}
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Toshihiro Shimizu 890ddd
//-----------------------------------------------------------------------------
Toshihiro Shimizu 890ddd
Shinya Kitaoka 120a6e
void HistogramView::setDrawnWidget(QWidget *widget) { m_drawnWidget = widget; }
Toshihiro Shimizu 890ddd
Toshihiro Shimizu 890ddd
//-----------------------------------------------------------------------------
Toshihiro Shimizu 890ddd
Shinya Kitaoka 120a6e
void HistogramView::setValues(const int values[]) {
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  m_histogramGraph->setValues(values);
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  m_drawnWidget->update();
Toshihiro Shimizu 890ddd
}
Toshihiro Shimizu 890ddd
Toshihiro Shimizu 890ddd
//-----------------------------------------------------------------------------
Toshihiro Shimizu 890ddd
Shinya Kitaoka 120a6e
void HistogramView::draw(QPainter *painter, QPoint translation) {
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  m_histogramGraph->draw(painter, translation);
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  m_colorBar->draw(
Shinya Kitaoka 120a6e
      painter, QPoint(translation.x(),
Shinya Kitaoka 120a6e
                      translation.y() + m_histogramGraph->getHeight() + 17));
Toshihiro Shimizu 890ddd
}
Toshihiro Shimizu 890ddd
Toshihiro Shimizu 890ddd
//-----------------------------------------------------------------------------
Toshihiro Shimizu 890ddd
Shinya Kitaoka 120a6e
HistogramView::~HistogramView() {}
Toshihiro Shimizu 890ddd
Toshihiro Shimizu 890ddd
//=============================================================================
Toshihiro Shimizu 890ddd
// Histograms
Toshihiro Shimizu 890ddd
//-----------------------------------------------------------------------------
Toshihiro Shimizu 890ddd
Toshihiro Shimizu 890ddd
Histograms::Histograms(QWidget *parent, bool rgba)
Shinya Kitaoka 120a6e
    : QStackedWidget(parent)
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    , m_raster(0)
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    , m_palette(0)
Shinya Kitaoka 120a6e
    , m_computeAlsoRGBA(rgba)
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    , m_channelsCount(rgba ? 6 : 5) {
Shinya Kitaoka 120a6e
  setSizePolicy(QSizePolicy::MinimumExpanding, QSizePolicy::Fixed);
Toshihiro Shimizu 890ddd
Shinya Kitaoka 120a6e
  HistogramView *histogramViews[6];
Toshihiro Shimizu 890ddd
Shinya Kitaoka 120a6e
  int h                                      = 0;
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  if (m_computeAlsoRGBA) histogramViews[h++] = new HistogramView(this);
Toshihiro Shimizu 890ddd
Shinya Kitaoka 120a6e
  histogramViews[h++] = new HistogramView(this);
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  histogramViews[h++] = new HistogramView(this, Qt::red);
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  histogramViews[h++] = new HistogramView(this, Qt::green);
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  histogramViews[h++] = new HistogramView(this, Qt::blue);
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  histogramViews[h++] = new HistogramView(this, QColor(0, 0, 0, 0));
Toshihiro Shimizu 890ddd
Shinya Kitaoka 120a6e
  int i;
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  for (i = 0; i < m_channelsCount; ++i) addWidget(histogramViews[i]);
Toshihiro Shimizu 890ddd
}
Toshihiro Shimizu 890ddd
Toshihiro Shimizu 890ddd
//-----------------------------------------------------------------------------
Toshihiro Shimizu 890ddd
Shinya Kitaoka 120a6e
Histograms::~Histograms() { memset(m_channelValue, 0, sizeof m_channelValue); }
Toshihiro Shimizu 890ddd
Toshihiro Shimizu 890ddd
//-----------------------------------------------------------------------------
Toshihiro Shimizu 890ddd
Shinya Kitaoka 120a6e
void Histograms::setRaster(const TRasterP &raster, const TPaletteP &palette) {
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  if (palette.getPointer()) m_palette = palette;
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  m_raster                            = raster;
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  computeChannelsValue();
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  int i;
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  for (i = 0; i < count(); i++)
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    getHistogramView(i)->setValues(m_channelValue[i]);
Toshihiro Shimizu 890ddd
}
Toshihiro Shimizu 890ddd
Toshihiro Shimizu 890ddd
//-----------------------------------------------------------------------------
Toshihiro Shimizu 890ddd
Shinya Kitaoka 120a6e
void Histograms::computeChannelsValue() {
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  m_channelsCount = m_computeAlsoRGBA ? 6 : 5;
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  memset(m_channelValue, 0, sizeof m_channelValue);
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  if (!m_raster.getPointer()) return;
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  int(*rgbChannelValues)[256] = m_channelValue + (m_computeAlsoRGBA ? 1 : 0);
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  int(*channelValues)[256]    = rgbChannelValues + 1;
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  TRasterCM32P cmRaster = m_raster;
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  bool isCmRaster       = !!cmRaster;
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  {
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    TRaster32P ras32(m_raster);
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    if (ras32) {
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      ::computeRGBMValues32(ras32, channelValues);
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      goto computeChannelsSums;
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    }
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  }
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  {
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    TRaster64P ras64(m_raster);
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    if (ras64) {
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      ::computeRGBMValues64(ras64, channelValues);
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      goto computeChannelsSums;
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    }
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  }
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  {
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    TRasterGR8P rasGR8(m_raster);
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    if (rasGR8) {
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      m_channelsCount = 1;
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      ::computeGreyValues(rasGR8, m_channelValue[0]);
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      return;
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    }
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  }
Shinya Kitaoka 120a6e
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  {
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    TRasterGR16P rasGR16(m_raster);
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    if (rasGR16) {
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      m_channelsCount = 1;
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      ::computeGreyValues(rasGR16, m_channelValue[0]);
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      return;
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    }
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  }
Shinya Kitaoka 120a6e
Shinya Kitaoka 120a6e
  return;
Toshihiro Shimizu 890ddd
Toshihiro Shimizu 890ddd
computeChannelsSums:
Toshihiro Shimizu 890ddd
Shinya Kitaoka 120a6e
  if (m_computeAlsoRGBA) ::computeRGBM(channelValues, m_channelValue[0]);
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  ::computeRGB(channelValues, *rgbChannelValues);
Toshihiro Shimizu 890ddd
}
Toshihiro Shimizu 890ddd
Toshihiro Shimizu 890ddd
//-----------------------------------------------------------------------------
Toshihiro Shimizu 890ddd
Shinya Kitaoka 120a6e
HistogramView *Histograms::getHistogramView(int indexType) const {
Shinya Kitaoka 120a6e
  HistogramView *ch = dynamic_cast<histogramview *="">(widget(indexType));</histogramview>
Shinya Kitaoka 120a6e
  assert(ch);
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  return ch;
Toshihiro Shimizu 890ddd
}
Toshihiro Shimizu 890ddd
Toshihiro Shimizu 890ddd
//=============================================================================
Toshihiro Shimizu 890ddd
// Histogram
Toshihiro Shimizu 890ddd
//-----------------------------------------------------------------------------
Toshihiro Shimizu 890ddd
Shinya Kitaoka 120a6e
Histogram::Histogram(QWidget *parent) : QWidget(parent) {
Shinya Kitaoka 120a6e
  setSizePolicy(QSizePolicy::MinimumExpanding, QSizePolicy::Fixed);
Toshihiro Shimizu 890ddd
Shinya Kitaoka 120a6e
  QVBoxLayout *mainLayout = new QVBoxLayout(this);
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  mainLayout->setMargin(0);
Shinya Kitaoka 120a6e
  mainLayout->setSpacing(0);
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  setLayout(mainLayout);
Toshihiro Shimizu 890ddd
Shinya Kitaoka 120a6e
  QHBoxLayout *upperLayout = new QHBoxLayout;
Shinya Kitaoka 120a6e
  mainLayout->addLayout(upperLayout);
Toshihiro Shimizu 890ddd
Shinya Kitaoka 120a6e
  m_channelsListBox = new QComboBox(this);
Shinya Kitaoka 120a6e
  m_channelsListBox->setFixedSize(100, 20);
Toshihiro Shimizu 890ddd
Shinya Kitaoka 120a6e
  upperLayout->addSpacing(HistogramGraph::drawMargin);
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  upperLayout->addWidget(m_channelsListBox);
Shinya Kitaoka 120a6e
  upperLayout->addStretch(1);
Toshihiro Shimizu 890ddd
shun_iwasawa 3cc41f
  QIcon icon = createQIcon("histograms");
Toshihiro Shimizu 890ddd
Shinya Kitaoka 120a6e
  QPushButton *logScaleButton = new QPushButton(icon, "", this);
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  logScaleButton->setToolTip(tr("Logarithmic Scale"));
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  logScaleButton->setFixedSize(20, 20);
Shinya Kitaoka 120a6e
  logScaleButton->setCheckable(true);
Toshihiro Shimizu 890ddd
Shinya Kitaoka 120a6e
  upperLayout->addWidget(logScaleButton);
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  upperLayout->addSpacing(HistogramGraph::drawMargin);
Toshihiro Shimizu 890ddd
Shinya Kitaoka 120a6e
  m_histograms = new Histograms(this);
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  m_histograms->setCurrentIndex(0);
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  mainLayout->addWidget(m_histograms);
Toshihiro Shimizu 890ddd
Shinya Kitaoka 120a6e
  connect(m_channelsListBox, SIGNAL(currentIndexChanged(int)), m_histograms,
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          SLOT(setCurrentIndex(int)));
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  connect(logScaleButton, SIGNAL(toggled(bool)), this, SLOT(setLogScale(bool)));
Toshihiro Shimizu 890ddd
Shinya Kitaoka 120a6e
  updateChannelsList();
Toshihiro Shimizu 890ddd
}
Toshihiro Shimizu 890ddd
Toshihiro Shimizu 890ddd
//-----------------------------------------------------------------------------
Toshihiro Shimizu 890ddd
Shinya Kitaoka 120a6e
void Histogram::updateChannelsList() {
Shinya Kitaoka 120a6e
  if (m_histograms->channelsCount() != m_channelsListBox->count()) {
Shinya Kitaoka 120a6e
    QStringList channels;
Shinya Kitaoka 120a6e
    m_channelsListBox->clear();
Shinya Kitaoka 120a6e
Shinya Kitaoka 120a6e
    if (m_histograms->channelsCount() == 1)
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      channels << "Value";
Shinya Kitaoka 120a6e
    else
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      channels << "RGB"
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               << "Red"
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               << "Green"
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               << "Blue"
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               << "Alpha";
Shinya Kitaoka 120a6e
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    m_channelsListBox->addItems(channels);
Shinya Kitaoka 120a6e
  }
Toshihiro Shimizu 890ddd
}
Toshihiro Shimizu 890ddd
Toshihiro Shimizu 890ddd
//-----------------------------------------------------------------------------
Toshihiro Shimizu 890ddd
Shinya Kitaoka 120a6e
void Histogram::setRaster(const TRasterP &raster, const TPaletteP &palette) {
Shinya Kitaoka 120a6e
  m_histograms->setRaster(raster, palette);
Shinya Kitaoka 120a6e
  updateChannelsList();
Toshihiro Shimizu 890ddd
}
Toshihiro Shimizu 890ddd
Toshihiro Shimizu 890ddd
//-----------------------------------------------------------------------------
Toshihiro Shimizu 890ddd
Shinya Kitaoka 120a6e
void Histogram::setLogScale(bool onOff) {
Shinya Kitaoka 120a6e
  int i, count = m_histograms->channelsCount();
Shinya Kitaoka 120a6e
  for (i = 0; i < count; ++i) {
Shinya Kitaoka 120a6e
    HistogramGraph *graph = m_histograms->getHistogramView(i)->histogramGraph();
Shinya Kitaoka 120a6e
    graph->setLogScale(onOff);
Shinya Kitaoka 120a6e
  }
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  update();
Toshihiro Shimizu 890ddd
}