Mercurial > octave
view libgui/graphics/SliderControl.cc @ 23219:3ac9f9ecfae5 stable
maint: Update copyright dates.
author | John W. Eaton <jwe@octave.org> |
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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 <QScrollBar> #include "Container.h" #include "SliderControl.h" #include "QtHandlesUtils.h" #define RANGE_INT_MAX 1000000 namespace QtHandles { SliderControl* SliderControl::create (const graphics_object& go) { Object* parent = Object::parentObject (go); if (parent) { Container* container = parent->innerContainer (); if (container) return new SliderControl (go, new QScrollBar (container)); } return 0; } SliderControl::SliderControl (const graphics_object& go, QAbstractSlider* slider) : BaseControl (go, slider), m_blockUpdates (false) { uicontrol::properties& up = properties<uicontrol> (); slider->setTracking (false); Matrix bb = up.get_boundingbox (); slider->setOrientation (bb(2) > bb(3) ? Qt::Horizontal : Qt::Vertical); Matrix steps = up.get_sliderstep ().matrix_value (); slider->setMinimum (0); slider->setMaximum (RANGE_INT_MAX); slider->setSingleStep (octave::math::round (steps(0) * RANGE_INT_MAX)); slider->setPageStep (octave::math::round (steps(1) * RANGE_INT_MAX)); Matrix value = up.get_value ().matrix_value (); if (value.numel () > 0) { double dmin = up.get_min (), dmax = up.get_max (); slider->setValue (octave::math::round (((value(0) - dmin) / (dmax - dmin)) * RANGE_INT_MAX)); } connect (slider, SIGNAL (valueChanged (int)), SLOT (valueChanged (int))); } SliderControl::~SliderControl (void) { } void SliderControl::update (int pId) { uicontrol::properties& up = properties<uicontrol> (); QScrollBar* slider = qWidget<QScrollBar> (); switch (pId) { case uicontrol::properties::ID_SLIDERSTEP: { Matrix steps = up.get_sliderstep ().matrix_value (); slider->setSingleStep (octave::math::round (steps(0) * RANGE_INT_MAX)); slider->setPageStep (octave::math::round (steps(1) * RANGE_INT_MAX)); } break; case uicontrol::properties::ID_VALUE: { Matrix value = up.get_value ().matrix_value (); double dmax = up.get_max (), dmin = up.get_min (); if (value.numel () > 0) { int ival = octave::math::round (((value(0) - dmin) / (dmax - dmin)) * RANGE_INT_MAX); m_blockUpdates = true; slider->setValue (ival); m_blockUpdates = false; } } break; default: BaseControl::update (pId); break; } } void SliderControl::valueChanged (int ival) { if (! m_blockUpdates) { gh_manager::auto_lock lock; graphics_object go = object (); if (go.valid_object ()) { uicontrol::properties& up = Utils::properties<uicontrol> (go); Matrix value = up.get_value ().matrix_value (); double dmin = up.get_min (), dmax = up.get_max (); int ival_tmp = (value.numel () > 0 ? octave::math::round (((value(0) - dmin) / (dmax - dmin)) * RANGE_INT_MAX) : 0); if (ival != ival_tmp || value.numel () > 0) { double dval = dmin + (ival * (dmax - dmin) / RANGE_INT_MAX); gh_manager::post_set (m_handle, "value", octave_value (dval)); gh_manager::post_callback (m_handle, "callback"); } } } } }