src/generalviewsettingspage.cpp

   1 /***************************************************************************
   2  *   Copyright (C) 2006 by Peter Penz <peter.penz@gmx.at>                  *
   3  *                                                                         *
   4  *   This program is free software; you can redistribute it and/or modify  *
   5  *   it under the terms of the GNU General Public License as published by  *
   6  *   the Free Software Foundation; either version 2 of the License, or     *
   7  *   (at your option) any later version.                                   *
   8  *                                                                         *
   9  *   This program is distributed in the hope that it will be useful,       *
  10  *   but WITHOUT ANY WARRANTY; without even the implied warranty of        *
  11  *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the         *
  12  *   GNU General Public License for more details.                          *
  13  *                                                                         *
  14  *   You should have received a copy of the GNU General Public License     *
  15  *   along with this program; if not, write to the                         *
  16  *   Free Software Foundation, Inc.,                                       *
  17  *   51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA            *
  18  ***************************************************************************/
  19
  20 #include "generalviewsettingspage.h"
  21 #include "dolphinmainwindow.h"
  22 #include "dolphinsettings.h"
  23 #include "dolphinviewcontainer.h"
  24 #include "viewproperties.h"
  25
  26 #include "dolphin_generalsettings.h"
  27
  28 #include <QLabel>
  29 #include <QGroupBox>
  30 #include <QRadioButton>
  31 #include <QSlider>
  32 #include <QSpinBox>
  33 #include <QBoxLayout>
  34
  35 #include <kconfiggroup.h>
  36 #include <kdialog.h>
  37 #include <kglobal.h>
  38 #include <klocale.h>
  39 #include <khbox.h>
  40
  41 GeneralViewSettingsPage::GeneralViewSettingsPage(DolphinMainWindow* mainWindow,
  42                                                  QWidget* parent) :
  43     KVBox(parent),
  44     m_mainWindow(mainWindow),
  45     m_localProps(0),
  46     m_globalProps(0),
  47     m_maxPreviewSize(0),
  48     m_spinBox(0)
  49 {
  50     const int spacing = KDialog::spacingHint();
  51     const int margin = KDialog::marginHint();
  52     const QSizePolicy sizePolicy(QSizePolicy::Preferred, QSizePolicy::Fixed);
  53
  54     setSpacing(spacing);
  55     setMargin(margin);
  56
  57     QGroupBox* propsBox = new QGroupBox(i18n("View Properties"), this);
  58
  59     m_localProps = new QRadioButton(i18n("Remember view properties for each folder"), propsBox);
  60     m_globalProps = new QRadioButton(i18n("Use common view properties for all folders"), propsBox);
  61
  62     QVBoxLayout* propsBoxLayout = new QVBoxLayout(propsBox);
  63     propsBoxLayout->addWidget(m_localProps);
  64     propsBoxLayout->addWidget(m_globalProps);
  65
  66     // create 'File Previews' box
  67     QGroupBox* previewBox = new QGroupBox(i18n("File Previews"), this);
  68
  69     QLabel* maxFileSize = new QLabel(i18n("Maximum file size:"), previewBox);
  70
  71     KHBox* vBox = new KHBox(previewBox);
  72     vBox->setSpacing(spacing);
  73     m_maxPreviewSize = new QSlider(Qt::Horizontal, vBox);
  74
  75     m_spinBox = new QSpinBox(vBox);
  76
  77     connect(m_maxPreviewSize, SIGNAL(valueChanged(int)),
  78             m_spinBox, SLOT(setValue(int)));
  79     connect(m_spinBox, SIGNAL(valueChanged(int)),
  80             m_maxPreviewSize, SLOT(setValue(int)));
  81
  82     QVBoxLayout* previewBoxLayout = new QVBoxLayout(previewBox);
  83     previewBoxLayout->addWidget(maxFileSize);
  84     previewBoxLayout->addWidget(vBox);
  85
  86     // Add a dummy widget with no restriction regarding
  87     // a vertical resizing. This assures that the dialog layout
  88     // is not stretched vertically.
  89     new QWidget(this);
  90
  91     loadSettings();
  92 }
  93
  94
  95 GeneralViewSettingsPage::~GeneralViewSettingsPage()
  96 {
  97     GeneralSettings* settings = DolphinSettings::instance().generalSettings();
  98     settings->setDefaults();
  99
 100     loadSettings();
 101 }
 102
 103 void GeneralViewSettingsPage::applySettings()
 104 {
 105     const KUrl& url = m_mainWindow->activeViewContainer()->url();
 106     ViewProperties props(url);  // read current view properties
 107
 108     const bool useGlobalProps = m_globalProps->isChecked();
 109
 110     GeneralSettings* settings = DolphinSettings::instance().generalSettings();
 111     settings->setGlobalViewProps(useGlobalProps);
 112
 113     if (useGlobalProps) {
 114         // Remember the global view properties by applying the current view properties.
 115         // It is important that GeneralSettings::globalViewProps() is set before
 116         // the class ViewProperties is used, as ViewProperties uses this setting
 117         // to find the destination folder for storing the view properties.
 118         ViewProperties globalProps(url);
 119         globalProps.setDirProperties(props);
 120     }
 121
 122     KConfigGroup globalConfig(KGlobal::config(), "PreviewSettings");
 123     const int byteCount = m_maxPreviewSize->value() * 1024 * 1024; // value() returns size in MB
 124     globalConfig.writeEntry("MaximumSize",
 125                             byteCount,
 126                             KConfigBase::Normal | KConfigBase::Global);
 127     globalConfig.sync();
 128 }
 129
 130 void GeneralViewSettingsPage::restoreDefaults()
 131 {
 132     GeneralSettings* settings = DolphinSettings::instance().generalSettings();
 133     settings->setDefaults();
 134     loadSettings();
 135 }
 136
 137 void GeneralViewSettingsPage::loadSettings()
 138 {
 139     GeneralSettings* settings = DolphinSettings::instance().generalSettings();
 140     if (settings->globalViewProps()) {
 141         m_globalProps->setChecked(true);
 142     } else {
 143         m_localProps->setChecked(true);
 144     }
 145
 146     const int min = 1;   // MB
 147     const int max = 100; // MB
 148     m_maxPreviewSize->setRange(min, max);
 149     m_maxPreviewSize->setPageStep(10);
 150     m_maxPreviewSize->setSingleStep(1);
 151     m_maxPreviewSize->setTickPosition(QSlider::TicksBelow);
 152
 153     KConfigGroup globalConfig(KGlobal::config(), "PreviewSettings");
 154     const int maxByteSize = globalConfig.readEntry("MaximumSize", 1024 * 1024 /* 1 MB */);
 155     int maxMByteSize = maxByteSize / (1024 * 1024);
 156     if (maxMByteSize < 1) {
 157         maxMByteSize = 1;
 158     } else if (maxMByteSize > max) {
 159         maxMByteSize = max;
 160     }
 161     m_maxPreviewSize->setValue(maxMByteSize);
 162
 163     m_spinBox->setRange(min, max);
 164     m_spinBox->setSingleStep(1);
 165     m_spinBox->setSuffix(" MB");
 166     m_spinBox->setValue(m_maxPreviewSize->value());
 167 }
 168
 169 #include "generalviewsettingspage.moc"