396 lines
15 KiB
C++
396 lines
15 KiB
C++
/***************************************************************************
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* Copyright (C) 2008,2010 by Volker Lanz <vl@fidra.de> *
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* *
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* This program is free software; you can redistribute it and/or modify *
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* it under the terms of the GNU General Public License as published by *
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* the Free Software Foundation; either version 2 of the License, or *
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* (at your option) any later version. *
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* *
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* This program is distributed in the hope that it will be useful, *
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* but WITHOUT ANY WARRANTY; without even the implied warranty of *
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
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* GNU General Public License for more details. *
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* *
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* You should have received a copy of the GNU General Public License *
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* along with this program; if not, write to the *
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* Free Software Foundation, Inc., *
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* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA *
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***************************************************************************/
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#include "gui/sizedialogbase.h"
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#include "gui/sizedetailswidget.h"
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#include "gui/partresizerwidget.h"
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#include "gui/sizedialogwidget.h"
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#include "core/partitiontable.h"
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#include "core/device.h"
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#include "core/partition.h"
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#include "core/partitionalignment.h"
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#include "util/capacity.h"
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#include <kdebug.h>
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#include <config.h>
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static double sectorsToDialogUnit(const Device& d, qint64 v);
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static qint64 dialogUnitToSectors(const Device& d, double v);
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SizeDialogBase::SizeDialogBase(QWidget* parent, Device& d, Partition& part, qint64 minFirst, qint64 maxLast) :
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KDialog(parent),
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m_SizeDialogWidget(new SizeDialogWidget(this)),
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m_SizeDetailsWidget(new SizeDetailsWidget(this)),
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m_Device(d),
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m_Partition(part),
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m_MinimumFirstSector(minFirst),
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m_MaximumLastSector(maxLast),
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m_MinimumLength(-1),
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m_MaximumLength(-1)
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{
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setMainWidget(&dialogWidget());
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setDetailsWidget(&detailsWidget());
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showButtonSeparator(true);
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setButtons(KDialog::Ok | KDialog::Cancel | KDialog::Details);
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// Cannot use KGuiItem() for the details button due to a KDialog bug -- it has special handling
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// for the details button text but not if using setButtonGuiItem
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setButtonText(Details, i18nc("@item:button advanced settings button", "Advanced"));
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setButtonIcon(Details, KIcon());
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}
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void SizeDialogBase::setupDialog()
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{
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dialogWidget().spinFreeBefore().setValue(sectorsToDialogUnit(device(), partition().firstSector() - minimumFirstSector()));
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dialogWidget().spinFreeAfter().setValue(sectorsToDialogUnit(device(), maximumLastSector() - partition().lastSector()));
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dialogWidget().spinCapacity().setValue(Capacity(partition().capacity()).toDouble(Capacity::preferredUnit()));
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dialogWidget().spinFreeBefore().setSuffix(QString(" ") + Capacity::unitName(Capacity::preferredUnit()));
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dialogWidget().spinFreeAfter().setSuffix(QString(" ") + Capacity::unitName(Capacity::preferredUnit()));
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dialogWidget().spinCapacity().setSuffix(QString(" ") + Capacity::unitName(Capacity::preferredUnit()));
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detailsWidget().spinFirstSector().setValue(partition().firstSector());
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detailsWidget().spinLastSector().setValue(partition().lastSector());
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detailsWidget().checkAlign().setChecked(Config::alignDefault());
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dialogWidget().partResizerWidget().init(device(), partition(), minimumFirstSector(), maximumLastSector(), false, canMove());
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dialogWidget().partResizerWidget().setAlign(Config::alignDefault());
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}
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void SizeDialogBase::setupConstraints()
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{
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setMinimumLength(!canShrink() ? partition().length() : qMax(partition().sectorsUsed(), partition().minimumSectors()));
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setMaximumLength(!canGrow() ? partition().length() : qMin(maximumLastSector() - minimumFirstSector() + 1, partition().maximumSectors()));
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dialogWidget().partResizerWidget().setMinimumLength(minimumLength());
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dialogWidget().partResizerWidget().setMaximumLength(maximumLength());
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dialogWidget().labelMinSize().setText(Capacity(minimumLength() * device().logicalSectorSize()).toString());
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dialogWidget().labelMaxSize().setText(Capacity(maximumLength() * device().logicalSectorSize()).toString());
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dialogWidget().spinCapacity().setEnabled(canShrink() || canGrow());
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dialogWidget().partResizerWidget().setMaximumFirstSector(maximumFirstSector());
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dialogWidget().partResizerWidget().setMinimumLastSector(minimumLastSector());
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const qint64 totalCapacity = sectorsToDialogUnit(device(), maximumLastSector() - minimumFirstSector() + 1);
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const qint64 minCapacity = sectorsToDialogUnit(device(), minimumLength());
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const qint64 maxCapacity = sectorsToDialogUnit(device(), maximumLength());
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dialogWidget().spinCapacity().setRange(minCapacity, maxCapacity);
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const qint64 maxFree = totalCapacity - minCapacity;
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dialogWidget().spinFreeBefore().setRange(0, maxFree);
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dialogWidget().spinFreeAfter().setRange(0, maxFree);
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detailsWidget().spinFirstSector().setRange(minimumFirstSector(), maximumLastSector());
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detailsWidget().spinLastSector().setRange(minimumFirstSector(), maximumLastSector());
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onAlignToggled(align());
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}
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void SizeDialogBase::setupConnections()
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{
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connect(&dialogWidget().partResizerWidget(), SIGNAL(firstSectorChanged(qint64)), SLOT(onResizerWidgetFirstSectorChanged(qint64)));
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connect(&dialogWidget().partResizerWidget(), SIGNAL(lastSectorChanged(qint64)), SLOT(onResizerWidgetLastSectorChanged(qint64)));
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connect(&dialogWidget().spinFreeBefore(), SIGNAL(valueChanged(double)), SLOT(onSpinFreeBeforeChanged(double)));
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connect(&dialogWidget().spinFreeAfter(), SIGNAL(valueChanged(double)), SLOT(onSpinFreeAfterChanged(double)));
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connect(&dialogWidget().spinCapacity(), SIGNAL(valueChanged(double)), SLOT(onSpinCapacityChanged(double)));
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connect(&detailsWidget().spinFirstSector(), SIGNAL(valueChanged(double)), SLOT(onSpinFirstSectorChanged(double)));
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connect(&detailsWidget().spinLastSector(), SIGNAL(valueChanged(double)), SLOT(onSpinLastSectorChanged(double)));
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connect(&detailsWidget().checkAlign(), SIGNAL(toggled(bool)), SLOT(onAlignToggled(bool)));
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}
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void SizeDialogBase::onSpinFreeBeforeChanged(double newBefore)
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{
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bool success = false;
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const double oldBefore = sectorsToDialogUnit(device(), partition().firstSector() - minimumFirstSector());
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const qint64 newFirstSector = minimumFirstSector() + dialogUnitToSectors(device(), newBefore);
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const qint64 deltaCorrection = newBefore > oldBefore
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? PartitionAlignment::firstDelta(device(), partition(), newFirstSector)
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: 0;
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// We need different alignFirstSector parameters for moving the first sector (which
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// has to take into account min and max length of the partition) and for moving
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// the whole partition (which must NOT take min and max length into account since
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// the length is fixed in this case anyway)
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qint64 alignedFirstSector = align()
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? PartitionAlignment::alignedFirstSector(device(), partition(), newFirstSector + deltaCorrection, minimumFirstSector(), -1, -1, -1)
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: newFirstSector;
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if (dialogWidget().partResizerWidget().movePartition(alignedFirstSector))
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success = true;
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else
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{
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alignedFirstSector = align()
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? PartitionAlignment::alignedFirstSector(device(), partition(), newFirstSector + deltaCorrection, minimumFirstSector(), -1, minimumLength(), maximumLength())
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: newFirstSector;
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success = dialogWidget().partResizerWidget().updateFirstSector(alignedFirstSector);
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}
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if (success)
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setDirty();
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else
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// TODO: this is not the best solution: we should prevent the user from entering
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// illegal values with a validator
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updateSpinFreeBefore(dialogUnitToSectors(device(), oldBefore));
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}
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void SizeDialogBase::onSpinCapacityChanged(double newCapacity)
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{
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bool success = false;
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qint64 newLength = qBound(
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minimumLength(),
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dialogUnitToSectors(device(), newCapacity),
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qMin(maximumLastSector() - minimumFirstSector() + 1, maximumLength())
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);
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if (newLength == partition().length())
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return;
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qint64 delta = newLength - partition().length();
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qint64 tmp = qMin(delta, maximumLastSector() - partition().lastSector());
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delta -= tmp;
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const bool signalState = dialogWidget().partResizerWidget().blockSignals(true);
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if (tmp != 0)
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{
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qint64 newLastSector = partition().lastSector() + tmp;
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if (align())
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newLastSector = PartitionAlignment::alignedLastSector(device(), partition(), newLastSector, minimumLastSector(), maximumLastSector(), minimumLength(), maximumLength());
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if (dialogWidget().partResizerWidget().updateLastSector(newLastSector))
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{
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success = true;
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updateSpinFreeAfter(maximumLastSector() - newLastSector);
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updateSpinLastSector(newLastSector);
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}
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}
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tmp = qMin(delta, partition().firstSector() - minimumFirstSector());
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delta -= tmp;
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if (tmp != 0)
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{
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qint64 newFirstSector = partition().firstSector() - tmp;
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if (align())
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newFirstSector = PartitionAlignment::alignedFirstSector(device(), partition(), newFirstSector, minimumFirstSector(), maximumFirstSector(), minimumLength(), maximumLength());
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if (dialogWidget().partResizerWidget().updateFirstSector(newFirstSector))
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{
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success = true;
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updateSpinFreeBefore(newFirstSector - minimumFirstSector());
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updateSpinFirstSector(newFirstSector);
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}
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}
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dialogWidget().partResizerWidget().blockSignals(signalState);
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if (success)
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setDirty();
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}
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void SizeDialogBase::onSpinFreeAfterChanged(double newAfter)
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{
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bool success = false;
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const double oldAfter = sectorsToDialogUnit(device(), maximumLastSector() - partition().lastSector());
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const qint64 newLastSector = maximumLastSector() - dialogUnitToSectors(device(), newAfter);
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const qint64 deltaCorrection = newAfter > oldAfter
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? PartitionAlignment::lastDelta(device(), partition(), newLastSector)
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: 0;
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// see onSpinFreeBeforeChanged on why this is as complicated as it is
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qint64 alignedLastSector = align()
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? PartitionAlignment::alignedLastSector(device(), partition(), newLastSector - deltaCorrection, -1, maximumLastSector(), -1, -1)
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: newLastSector;
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if (dialogWidget().partResizerWidget().movePartition(alignedLastSector - partition().length() + 1))
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success = true;
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else
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{
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alignedLastSector = align()
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? PartitionAlignment::alignedLastSector(device(), partition(), newLastSector - deltaCorrection, -1, maximumLastSector(), minimumLength(), maximumLength())
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: newLastSector;
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success = dialogWidget().partResizerWidget().updateLastSector(alignedLastSector);
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}
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if (success)
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setDirty();
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else
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// TODO: this is not the best solution: we should prevent the user from entering
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// illegal values with a validator
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updateSpinFreeAfter(dialogUnitToSectors(device(), oldAfter));
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}
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void SizeDialogBase::onSpinFirstSectorChanged(double newFirst)
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{
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if (newFirst >= minimumFirstSector() && dialogWidget().partResizerWidget().updateFirstSector(newFirst))
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setDirty();
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else
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// TODO: this is not the best solution: we should prevent the user from entering
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// illegal values with a validator
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updateSpinFirstSector(partition().firstSector());
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}
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void SizeDialogBase::onSpinLastSectorChanged(double newLast)
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{
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if (newLast <= maximumLastSector() && dialogWidget().partResizerWidget().updateLastSector(newLast))
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setDirty();
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else
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// TODO: this is not the best solution: we should prevent the user from entering
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// illegal values with a validator
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updateSpinLastSector(partition().lastSector());
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}
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void SizeDialogBase::onResizerWidgetFirstSectorChanged(qint64 newFirst)
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{
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updateSpinFreeBefore(newFirst - minimumFirstSector());
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updateSpinFirstSector(newFirst);
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updateSpinCapacity(partition().length());
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setDirty();
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}
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void SizeDialogBase::onResizerWidgetLastSectorChanged(qint64 newLast)
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{
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updateSpinFreeAfter(maximumLastSector() - newLast);
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updateSpinLastSector(newLast);
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updateSpinCapacity(partition().length());
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setDirty();
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}
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void SizeDialogBase::onAlignToggled(bool align)
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{
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dialogWidget().partResizerWidget().setAlign(align);
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detailsWidget().spinFirstSector().setSingleStep(align ? PartitionAlignment::sectorAlignment(device()) : 1);
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detailsWidget().spinLastSector().setSingleStep(align ? PartitionAlignment::sectorAlignment(device()) : 1);
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const double capacityStep = align ? sectorsToDialogUnit(device(), PartitionAlignment::sectorAlignment(device())) : 1;
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dialogWidget().spinFreeBefore().setSingleStep(capacityStep);
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dialogWidget().spinFreeBefore().setSingleStep(capacityStep);
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dialogWidget().spinCapacity().setSingleStep(capacityStep);
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// if align is on, turn off keyboard tracking for all spin boxes to avoid the two clashing
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foreach(QAbstractSpinBox* box, dialogWidget().findChildren<QAbstractSpinBox*>() +
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detailsWidget().findChildren<QAbstractSpinBox*>())
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box->setKeyboardTracking(!align);
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if (align)
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{
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onSpinFirstSectorChanged(partition().firstSector());
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onSpinLastSectorChanged(partition().lastSector());
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}
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}
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void SizeDialogBase::updateSpinFreeBefore(qint64 sectorsFreeBefore)
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{
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const bool signalState = dialogWidget().spinFreeBefore().blockSignals(true);
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dialogWidget().spinFreeBefore().setValue(sectorsToDialogUnit(device(), sectorsFreeBefore));
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dialogWidget().spinFreeBefore().blockSignals(signalState);
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}
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void SizeDialogBase::updateSpinCapacity(qint64 newLengthInSectors)
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{
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bool state = dialogWidget().spinCapacity().blockSignals(true);
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dialogWidget().spinCapacity().setValue(sectorsToDialogUnit(device(), newLengthInSectors));
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dialogWidget().spinCapacity().blockSignals(state);
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}
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void SizeDialogBase::updateSpinFreeAfter(qint64 sectorsFreeAfter)
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{
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const bool signalState = dialogWidget().spinFreeAfter().blockSignals(true);
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dialogWidget().spinFreeAfter().setValue(sectorsToDialogUnit(device(), sectorsFreeAfter));
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dialogWidget().spinFreeAfter().blockSignals(signalState);
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}
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void SizeDialogBase::updateSpinFirstSector(qint64 newFirst)
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{
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const bool signalState = detailsWidget().spinFirstSector().blockSignals(true);
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detailsWidget().spinFirstSector().setValue(newFirst);
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detailsWidget().spinFirstSector().blockSignals(signalState);
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}
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void SizeDialogBase::updateSpinLastSector(qint64 newLast)
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{
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const bool signalState = detailsWidget().spinLastSector().blockSignals(true);
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detailsWidget().spinLastSector().setValue(newLast);
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detailsWidget().spinLastSector().blockSignals(signalState);
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}
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const PartitionTable& SizeDialogBase::partitionTable() const
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{
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Q_ASSERT(device().partitionTable());
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return *device().partitionTable();
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}
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bool SizeDialogBase::align() const
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{
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return detailsWidget().checkAlign().isChecked();
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}
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qint64 SizeDialogBase::minimumLastSector() const
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{
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return partition().minLastSector();
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}
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qint64 SizeDialogBase::maximumFirstSector() const
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{
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return partition().maxFirstSector();
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}
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qint64 SizeDialogBase::minimumLength() const
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{
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return m_MinimumLength;
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}
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qint64 SizeDialogBase::maximumLength() const
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{
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return m_MaximumLength;
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}
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static double sectorsToDialogUnit(const Device& d, qint64 v)
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{
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return Capacity(v * d.logicalSectorSize()).toDouble(Capacity::preferredUnit());
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}
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static qint64 dialogUnitToSectors(const Device& d, double v)
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{
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return v * Capacity::unitFactor(Capacity::Byte, Capacity::preferredUnit()) / d.logicalSectorSize();
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}
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