[1f4adec] | 1 | /* |
---|
| 2 | |
---|
| 3 | Copyright 2015 Adam Reichold |
---|
| 4 | |
---|
| 5 | This file is part of qpdfview. |
---|
| 6 | |
---|
| 7 | qpdfview is free software: you can redistribute it and/or modify |
---|
| 8 | it under the terms of the GNU General Public License as published by |
---|
| 9 | the Free Software Foundation, either version 2 of the License, or |
---|
| 10 | (at your option) any later version. |
---|
| 11 | |
---|
| 12 | qpdfview is distributed in the hope that it will be useful, |
---|
| 13 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
---|
| 14 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
---|
| 15 | GNU General Public License for more details. |
---|
| 16 | |
---|
| 17 | You should have received a copy of the GNU General Public License |
---|
| 18 | along with qpdfview. If not, see <http://www.gnu.org/licenses/>. |
---|
| 19 | |
---|
| 20 | */ |
---|
| 21 | |
---|
| 22 | #include "imagemodel.h" |
---|
| 23 | |
---|
| 24 | #include <QDebug> |
---|
| 25 | #include <QImageWriter> |
---|
| 26 | |
---|
| 27 | namespace |
---|
| 28 | { |
---|
| 29 | |
---|
| 30 | using namespace qpdfview; |
---|
| 31 | using namespace qpdfview::Model; |
---|
| 32 | |
---|
| 33 | inline qreal dotsPerInchX(const QImage& image) |
---|
| 34 | { |
---|
| 35 | return 0.0254 * image.dotsPerMeterX(); |
---|
| 36 | } |
---|
| 37 | |
---|
| 38 | inline qreal dotsPerInchY(const QImage& image) |
---|
| 39 | { |
---|
| 40 | return 0.0254 * image.dotsPerMeterY(); |
---|
| 41 | } |
---|
| 42 | |
---|
| 43 | inline void appendRow(QStandardItemModel* model, const QString& key, const QString& value) |
---|
| 44 | { |
---|
| 45 | model->appendRow(QList< QStandardItem* >() << new QStandardItem(key) << new QStandardItem(value)); |
---|
| 46 | } |
---|
| 47 | |
---|
| 48 | } // anonymous |
---|
| 49 | |
---|
| 50 | namespace qpdfview |
---|
| 51 | { |
---|
| 52 | |
---|
| 53 | namespace Model |
---|
| 54 | { |
---|
| 55 | |
---|
| 56 | ImagePage::ImagePage(QImage image) : |
---|
| 57 | m_image(image) |
---|
| 58 | { |
---|
| 59 | } |
---|
| 60 | |
---|
| 61 | QSizeF ImagePage::size() const |
---|
| 62 | { |
---|
| 63 | return QSizeF(m_image.width() * 72.0 / dotsPerInchX(m_image), |
---|
| 64 | m_image.height() * 72.0 / dotsPerInchY(m_image)); |
---|
| 65 | } |
---|
| 66 | |
---|
| 67 | QImage ImagePage::render(qreal horizontalResolution, qreal verticalResolution, Rotation rotation, const QRect& boundingRect) const |
---|
| 68 | { |
---|
| 69 | QTransform transform; |
---|
| 70 | |
---|
| 71 | transform.scale(horizontalResolution / dotsPerInchX(m_image), |
---|
| 72 | verticalResolution / dotsPerInchY(m_image)); |
---|
| 73 | |
---|
| 74 | switch(rotation) |
---|
| 75 | { |
---|
| 76 | default: |
---|
| 77 | case RotateBy0: |
---|
| 78 | break; |
---|
| 79 | case RotateBy90: |
---|
| 80 | transform.rotate(90.0); |
---|
| 81 | break; |
---|
| 82 | case RotateBy180: |
---|
| 83 | transform.rotate(180.0); |
---|
| 84 | break; |
---|
| 85 | case RotateBy270: |
---|
| 86 | transform.rotate(270.0); |
---|
| 87 | break; |
---|
| 88 | } |
---|
| 89 | |
---|
| 90 | QImage image = m_image.transformed(transform, Qt::SmoothTransformation); |
---|
| 91 | |
---|
| 92 | if(!boundingRect.isNull()) |
---|
| 93 | { |
---|
| 94 | image = image.copy(boundingRect); |
---|
| 95 | } |
---|
| 96 | |
---|
| 97 | return image; |
---|
| 98 | } |
---|
| 99 | |
---|
| 100 | ImageDocument::ImageDocument(QImage image) : |
---|
| 101 | m_image(image) |
---|
| 102 | { |
---|
| 103 | } |
---|
| 104 | |
---|
| 105 | int ImageDocument::numberOfPages() const |
---|
| 106 | { |
---|
| 107 | return 1; |
---|
| 108 | } |
---|
| 109 | |
---|
| 110 | Page* ImageDocument::page(int index) const |
---|
| 111 | { |
---|
| 112 | return index == 0 ? new ImagePage(m_image) : 0; |
---|
| 113 | } |
---|
| 114 | |
---|
| 115 | QStringList ImageDocument::saveFilter() const |
---|
| 116 | { |
---|
| 117 | QStringList formats; |
---|
| 118 | |
---|
| 119 | foreach(const QByteArray& format, QImageWriter::supportedImageFormats()) |
---|
| 120 | { |
---|
| 121 | const QString name = QString::fromLocal8Bit(format); |
---|
| 122 | |
---|
| 123 | formats.append(QLatin1String("*.") + name); |
---|
| 124 | } |
---|
| 125 | |
---|
| 126 | return QStringList() << tr("Image (%1)").arg(formats.join(QLatin1String(" "))); |
---|
| 127 | } |
---|
| 128 | |
---|
| 129 | bool ImageDocument::canSave() const |
---|
| 130 | { |
---|
| 131 | return true; |
---|
| 132 | } |
---|
| 133 | |
---|
| 134 | bool ImageDocument::save(const QString& filePath, bool withChanges) const |
---|
| 135 | { |
---|
| 136 | Q_UNUSED(withChanges); |
---|
| 137 | |
---|
| 138 | QImageWriter writer(filePath); |
---|
| 139 | |
---|
| 140 | if(!writer.write(m_image)) |
---|
| 141 | { |
---|
| 142 | qWarning() << writer.errorString(); |
---|
| 143 | |
---|
| 144 | return false; |
---|
| 145 | } |
---|
| 146 | |
---|
| 147 | return true; |
---|
| 148 | } |
---|
| 149 | |
---|
| 150 | void ImageDocument::loadProperties(QStandardItemModel *propertiesModel) const |
---|
| 151 | { |
---|
| 152 | Document::loadProperties(propertiesModel); |
---|
| 153 | |
---|
| 154 | appendRow(propertiesModel, tr("Size"), QString("%1 px x %2 px").arg(m_image.width()).arg(m_image.height())); |
---|
| 155 | appendRow(propertiesModel, tr("Resolution"), QString("%1 dpi x %2 dpi").arg(dotsPerInchX(m_image), 0, 'f', 1).arg(dotsPerInchY(m_image), 0, 'f', 1)); |
---|
| 156 | appendRow(propertiesModel, tr("Depth"), QString("%1 bits").arg(m_image.depth())); |
---|
| 157 | |
---|
| 158 | switch(m_image.format()) |
---|
| 159 | { |
---|
| 160 | default: |
---|
| 161 | break; |
---|
| 162 | case QImage::Format_Mono: |
---|
| 163 | case QImage::Format_MonoLSB: |
---|
| 164 | appendRow(propertiesModel, tr("Format"), tr("Monochrome")); |
---|
| 165 | break; |
---|
| 166 | case QImage::Format_Indexed8: |
---|
| 167 | appendRow(propertiesModel, tr("Format"), tr("Indexed")); |
---|
| 168 | break; |
---|
| 169 | case QImage::Format_RGB32: |
---|
| 170 | appendRow(propertiesModel, tr("Format"), tr("32 bits RGB")); |
---|
| 171 | break; |
---|
| 172 | case QImage::Format_ARGB32: |
---|
| 173 | appendRow(propertiesModel, tr("Format"), tr("32 bits ARGB")); |
---|
| 174 | break; |
---|
| 175 | case QImage::Format_RGB16: |
---|
| 176 | case QImage::Format_RGB555: |
---|
| 177 | case QImage::Format_RGB444: |
---|
| 178 | appendRow(propertiesModel, tr("Format"), tr("16 bits RGB")); |
---|
| 179 | break; |
---|
| 180 | case QImage::Format_RGB666: |
---|
| 181 | case QImage::Format_RGB888: |
---|
| 182 | appendRow(propertiesModel, tr("Format"), tr("24 bits RGB")); |
---|
| 183 | break; |
---|
| 184 | } |
---|
| 185 | |
---|
| 186 | foreach(const QString& key, m_image.textKeys()) |
---|
| 187 | { |
---|
| 188 | appendRow(propertiesModel, key, m_image.text(key)); |
---|
| 189 | } |
---|
| 190 | } |
---|
| 191 | |
---|
| 192 | } // Model |
---|
| 193 | |
---|
| 194 | ImagePlugin::ImagePlugin(QObject* parent) : QObject(parent) |
---|
| 195 | { |
---|
| 196 | setObjectName("ImagePlugin"); |
---|
| 197 | } |
---|
| 198 | |
---|
| 199 | Model::Document* ImagePlugin::loadDocument(const QString& filePath) const |
---|
| 200 | { |
---|
| 201 | QImage image(filePath); |
---|
| 202 | |
---|
| 203 | return !image.isNull() ? new Model::ImageDocument(image) : 0; |
---|
| 204 | } |
---|
| 205 | |
---|
| 206 | } // qpdfview |
---|
| 207 | |
---|
| 208 | #if QT_VERSION < QT_VERSION_CHECK(5,0,0) |
---|
| 209 | |
---|
| 210 | Q_EXPORT_PLUGIN2(qpdfview_image, qpdfview::ImagePlugin) |
---|
| 211 | |
---|
| 212 | #endif // QT_VERSION |
---|