--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/libgui/graphics/Utils.cc	Thu Feb 20 14:05:45 2014 -0500
@@ -0,0 +1,355 @@
+/*
+
+Copyright (C) 2011 Michael Goffioul.
+
+This file is part of QtHandles.
+
+Foobar 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 3 of the License, or
+(at your option) any later version.
+
+QtHandles 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 Foobar.  If not, see <http://www.gnu.org/licenses/>.
+
+*/
+
+#ifdef HAVE_CONFIG_H
+#include <config.h>
+#endif
+
+#include <QApplication>
+#include <QKeyEvent>
+#include <QMouseEvent>
+
+#include <list>
+
+#include "ov.h"
+#include "graphics.h"
+
+#include "Backend.h"
+#include "Container.h"
+#include "KeyMap.h"
+#include "Object.h"
+#include "Utils.h"
+
+//////////////////////////////////////////////////////////////////////////////
+
+namespace QtHandles
+{
+
+//////////////////////////////////////////////////////////////////////////////
+
+namespace Utils
+{
+
+//////////////////////////////////////////////////////////////////////////////
+
+QString fromStdString (const std::string& s)
+{
+  return QString::fromLocal8Bit (s.c_str ());
+}
+
+//////////////////////////////////////////////////////////////////////////////
+
+std::string toStdString (const QString& s)
+{
+  return std::string (s.toLocal8Bit ().data ());
+}
+
+//////////////////////////////////////////////////////////////////////////////
+
+QStringList fromStringVector (const string_vector& v)
+{
+  QStringList l;
+  octave_idx_type n = v.length ();
+
+  for (octave_idx_type i = 0; i < n; i++)
+    l << fromStdString (v[i]);
+
+  return l;
+}
+
+//////////////////////////////////////////////////////////////////////////////
+
+string_vector toStringVector (const QStringList& l)
+{
+  string_vector v (l.length ());
+  int i = 0;
+
+  foreach (const QString& s, l)
+    v[i++] = toStdString (s);
+
+  return v;
+}
+
+//////////////////////////////////////////////////////////////////////////////
+
+template <class T>
+QFont computeFont (const typename T::properties& props, int height)
+{
+  QFont f (fromStdString (props.get_fontname ()));
+
+  static std::map<std::string, QFont::Weight> weightMap;
+  static std::map<std::string, QFont::Style> angleMap;
+  static bool mapsInitialized = false;
+
+  if (! mapsInitialized)
+    {
+      weightMap[std::string ("normal")] = QFont::Normal;
+      weightMap[std::string ("light")] = QFont::Light;
+      weightMap[std::string ("demi")] = QFont::DemiBold;
+      weightMap[std::string ("bold")] = QFont::Normal;
+
+      angleMap[std::string ("normal")] = QFont::StyleNormal;
+      angleMap[std::string ("italic")] = QFont::StyleItalic;
+      angleMap[std::string ("oblique")] = QFont::StyleOblique;
+
+      mapsInitialized = true;
+    }
+
+  f.setPointSizeF (props.get_fontsize_points (height));
+  f.setWeight (weightMap[props.get_fontweight ()]);
+  f.setStyle (angleMap[props.get_fontangle ()]);
+
+  return f;
+}
+
+template QFont computeFont<uicontrol> (const uicontrol::properties& props,
+				       int height);
+template QFont computeFont<uipanel> (const uipanel::properties& props,
+				     int height);
+
+//////////////////////////////////////////////////////////////////////////////
+
+QColor fromRgb (const Matrix& rgb)
+{
+  QColor c;
+
+  if (rgb.numel () == 3)
+    c.setRgbF (rgb(0), rgb(1), rgb(2));
+  
+  return c;
+}
+
+//////////////////////////////////////////////////////////////////////////////
+
+Matrix toRgb (const QColor& c)
+{
+  Matrix rgb (1, 3);
+  double* rgbData = rgb.fortran_vec ();
+
+  c.getRgbF (rgbData, rgbData+1, rgbData+2);
+
+  return rgb;
+}
+
+//////////////////////////////////////////////////////////////////////////////
+
+std::string figureSelectionType (QMouseEvent* event, bool isDoubleClick)
+{
+  if (isDoubleClick)
+    return std::string ("open");
+  else
+    {
+      Qt::MouseButtons buttons = event->buttons ();
+      Qt::KeyboardModifiers mods = event->modifiers ();
+
+      if (mods == Qt::NoModifier)
+	{
+	  if (buttons == Qt::LeftButton)
+	    return std::string ("normal");
+	  else if (buttons == Qt::RightButton)
+	    return std::string ("alt");
+#if defined (Q_WS_WIN)
+	  else if (buttons == (Qt::LeftButton|Qt::RightButton))
+	    return std::string ("extend");
+#elif defined (Q_WS_X11)
+	  else if (buttons == Qt::MidButton)
+	    return std::string ("extend");
+#endif
+	}
+      else if (buttons == Qt::LeftButton)
+	{
+	  if (mods == Qt::ShiftModifier)
+	    return std::string ("extend");
+	  else if (mods == Qt::ControlModifier)
+	    return std::string ("alt");
+	}
+    }
+
+  return std::string ("normal");
+}
+
+//////////////////////////////////////////////////////////////////////////////
+
+Matrix figureCurrentPoint (const graphics_object& fig, QMouseEvent* event)
+{
+  Object* tkFig = Backend::toolkitObject (fig);
+
+  if (tkFig)
+    {
+      Container* c = tkFig->innerContainer ();
+
+      if (c)
+	{
+	  QPoint qp = c->mapFromGlobal (event->globalPos ());
+
+	  return
+	    tkFig->properties<figure> ().map_from_boundingbox (qp.x (),
+							       qp.y ());
+	}
+    }
+
+  return Matrix (1, 2, 0.0);
+}
+
+//////////////////////////////////////////////////////////////////////////////
+
+Qt::Alignment fromHVAlign (const caseless_str& halign,
+			   const caseless_str& valign)
+{
+  Qt::Alignment flags;
+
+  if (halign.compare ("left"))
+    flags |= Qt::AlignLeft;
+  else if (halign.compare ("center"))
+    flags |= Qt::AlignHCenter;
+  else if (halign.compare ("right"))
+    flags |= Qt::AlignRight;
+  else
+    flags |= Qt::AlignLeft;
+
+  if (valign.compare ("middle"))
+    flags |= Qt::AlignVCenter;
+  else if (valign.compare ("top"))
+    flags |= Qt::AlignTop;
+  else if (valign.compare ("bottom"))
+    flags |= Qt::AlignBottom;
+  else
+    flags |= Qt::AlignVCenter;
+
+  return flags;
+}
+
+//////////////////////////////////////////////////////////////////////////////
+
+QImage makeImageFromCData (const octave_value& v, int width, int height)
+{
+  dim_vector dv (v.dims ());
+
+  if (dv.length () == 3 && dv(2) == 3)
+    {
+      int w = qMin (dv(1), width);
+      int h = qMin (dv(0), height);
+
+      int x_off = (w < width ? (width - w) / 2 : 0);
+      int y_off = (h < height ? (height - h) / 2 : 0);
+
+      QImage img (width, height, QImage::Format_ARGB32);
+      img.fill (qRgba (0, 0, 0, 0));
+
+      if (v.is_uint8_type ())
+	{
+	  uint8NDArray d = v.uint8_array_value ();
+
+	  for (int i = 0; i < w; i++)
+	    for (int j = 0; j < h; j++)
+	      {
+		int r = d(j, i, 0);
+		int g = d(j, i, 1);
+		int b = d(j, i, 2);
+		int a = 255;
+
+		img.setPixel (x_off + i, y_off + j, qRgba (r, g, b, a));
+	      }
+	}
+      else if (v.is_single_type ())
+	{
+	  FloatNDArray f = v.float_array_value ();
+
+	  for (int i = 0; i < w; i++)
+	    for (int j = 0; j < h; j++)
+	      {
+		float r = f(j, i, 0);
+		float g = f(j, i, 1);
+		float b = f(j, i, 2);
+		int a = (xisnan (r) || xisnan (g) || xisnan (b) ? 0 : 255);
+
+		img.setPixel (x_off + i, y_off + j,
+			      qRgba (xround (r * 255),
+				     xround (g * 255),
+				     xround (b * 255),
+				     a));
+	      }
+	}
+      else if (v.is_real_type ())
+	{
+	  NDArray d = v.array_value ();
+
+	  for (int i = 0; i < w; i++)
+	    for (int j = 0; j < h; j++)
+	      {
+		double r = d(j, i, 0);
+		double g = d(j, i, 1);
+		double b = d(j, i, 2);
+		int a = (xisnan (r) || xisnan (g) || xisnan (b) ? 0 : 255);
+
+		img.setPixel (x_off + i, y_off + j,
+			      qRgba (xround (r * 255),
+				     xround (g * 255),
+				     xround (b * 255),
+				     a));
+	      }
+	}
+
+      return img;
+    }
+
+  return QImage ();
+}
+
+//////////////////////////////////////////////////////////////////////////////
+
+octave_scalar_map makeKeyEventStruct (QKeyEvent* event)
+{
+  octave_scalar_map retval;
+
+  retval.setfield ("Key", KeyMap::qKeyToKeyString (event->key ()));
+  retval.setfield ("Character", toStdString (event->text ()));
+
+  std::list<std::string> modList;
+  Qt::KeyboardModifiers mods = event->modifiers ();
+
+  if (mods & Qt::ShiftModifier)
+    modList.push_back ("shift");
+  if (mods & Qt::ControlModifier)
+#ifdef Q_OS_MAC
+    modList.push_back ("command");
+#else
+    modList.push_back ("control");
+#endif
+  if (mods & Qt::AltModifier)
+    modList.push_back ("alt");
+#ifdef Q_OS_MAC
+  if (mods & Qt::MetaModifier)
+    modList.push_back ("control");
+#endif
+
+  retval.setfield ("Modifier", Cell (modList));
+
+  return retval;
+}
+
+//////////////////////////////////////////////////////////////////////////////
+
+}; // namespace Utils
+
+//////////////////////////////////////////////////////////////////////////////
+
+}; // namespace QtHandles