Mercurial > octave
view libgui/graphics/QtHandlesUtils.cc @ 23219:3ac9f9ecfae5 stable
maint: Update copyright dates.
author | John W. Eaton <jwe@octave.org> |
---|---|
date | Wed, 22 Feb 2017 12:39:29 -0500 |
parents | e9a0469dedd9 |
children | 092078913d54 |
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/* Copyright (C) 2011-2017 Michael Goffioul This file is part of Octave. Octave 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. Octave 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 Octave; see the file COPYING. If not, see <http://www.gnu.org/licenses/>. */ #if defined (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 "QtHandlesUtils.h" #include "oct-string.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.numel (); 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; } Cell toCellString (const QStringList& l) { QStringList tmp = l; // don't get any empty lines from end of the list while ((tmp.length () > 0) && tmp.last ().isEmpty ()) { tmp.removeLast (); } // no strings converts to a 1x1 cell with empty string if (tmp.isEmpty ()) tmp += ""; Cell v(toStringVector (tmp)); return v; } template <typename 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); template QFont computeFont<uibuttongroup> (const uibuttongroup::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 (); // qreal is a typedef for double except for ARM CPU architectures // where it is a typedef for float (Bug #44970). qreal tmp[3]; c.getRgbF (tmp, tmp+1, tmp+2); rgbData[0] = tmp[0]; rgbData[1] = tmp[1]; rgbData[2] = tmp[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"); } /* Two figureCurrentPoint() routines are required: 1) Used for QMouseEvents where cursor position data is in callback from Qt. 2) Used for QKeyEvents where cursor position must be determined. */ 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); } Matrix figureCurrentPoint (const graphics_object& fig) { Object* tkFig = Backend::toolkitObject (fig); if (tkFig) { Container* c = tkFig->innerContainer (); if (c) { // FIXME: QCursor::pos() may give inaccurate results with asynchronous // window systems like X11 over ssh. QPoint qp = c->mapFromGlobal (QCursor::pos ()); return tkFig->properties<figure> ().map_from_boundingbox (qp.x (), qp.y ()); } } return Matrix (1, 2, 0.0); } Qt::Alignment fromHVAlign (const std::string& halign, const std::string& valign) { Qt::Alignment flags; if (octave::string::strcmpi (halign, "left")) flags |= Qt::AlignLeft; else if (octave::string::strcmpi (halign, "center")) flags |= Qt::AlignHCenter; else if (octave::string::strcmpi (halign, "right")) flags |= Qt::AlignRight; else flags |= Qt::AlignLeft; if (octave::string::strcmpi (valign, "middle")) flags |= Qt::AlignVCenter; else if (octave::string::strcmpi (valign, "top")) flags |= Qt::AlignTop; else if (octave::string::strcmpi (valign, "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.ndims () == 3 && dv(2) == 3) { int w = qMin (dv(1), static_cast<octave_idx_type> (width)); int h = qMin (dv(0), static_cast<octave_idx_type> (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 = (octave::math::isnan (r) || octave::math::isnan (g) || octave::math::isnan (b) ? 0 : 255); img.setPixel (x_off + i, y_off + j, qRgba (octave::math::round (r * 255), octave::math::round (g * 255), octave::math::round (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 = (octave::math::isnan (r) || octave::math::isnan (g) || octave::math::isnan (b) ? 0 : 255); img.setPixel (x_off + i, y_off + j, qRgba (octave::math::round (r * 255), octave::math::round (g * 255), octave::math::round (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) #if defined (Q_OS_MAC) modList.push_back ("command"); #else modList.push_back ("control"); #endif if (mods & Qt::AltModifier) modList.push_back ("alt"); #if defined (Q_OS_MAC) if (mods & Qt::MetaModifier) modList.push_back ("control"); #endif retval.setfield ("Modifier", Cell (modList)); return retval; } } }