[1f4adec] | 1 | /* |
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| 2 | |
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| 3 | Copyright 2014 S. Razi Alavizadeh |
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| 4 | Copyright 2012-2014 Adam Reichold |
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| 5 | Copyright 2014 Dorian Scholz |
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| 6 | |
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| 7 | This file is part of qpdfview. |
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| 8 | |
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| 9 | qpdfview is free software: you can redistribute it and/or modify |
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| 10 | it under the terms of the GNU General Public License as published by |
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| 11 | the Free Software Foundation, either version 2 of the License, or |
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| 12 | (at your option) any later version. |
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| 13 | |
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| 14 | qpdfview is distributed in the hope that it will be useful, |
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| 15 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
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| 16 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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| 17 | GNU General Public License for more details. |
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| 18 | |
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| 19 | You should have received a copy of the GNU General Public License |
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| 20 | along with qpdfview. If not, see <http://www.gnu.org/licenses/>. |
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| 21 | |
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| 22 | */ |
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| 23 | |
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| 24 | #ifndef DOCUMENTVIEW_H |
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| 25 | #define DOCUMENTVIEW_H |
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| 26 | |
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| 27 | #include <QFileInfo> |
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| 28 | #include <QGraphicsView> |
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| 29 | #include <QMap> |
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| 30 | #include <QPersistentModelIndex> |
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| 31 | |
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| 32 | class QDomNode; |
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| 33 | class QFileSystemWatcher; |
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| 34 | class QPrinter; |
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| 35 | class QStandardItemModel; |
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| 36 | |
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| 37 | #include "renderparam.h" |
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| 38 | #include "printoptions.h" |
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| 39 | |
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| 40 | namespace qpdfview |
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| 41 | { |
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| 42 | |
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| 43 | namespace Model |
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| 44 | { |
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| 45 | class Annotation; |
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| 46 | class Page; |
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| 47 | class Document; |
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| 48 | } |
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| 49 | |
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| 50 | class Settings; |
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| 51 | class PageItem; |
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| 52 | class ThumbnailItem; |
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| 53 | class SearchModel; |
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| 54 | class SearchTask; |
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| 55 | class PresentationView; |
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| 56 | class ShortcutHandler; |
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| 57 | struct DocumentLayout; |
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| 58 | |
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| 59 | class DocumentView : public QGraphicsView |
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| 60 | { |
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| 61 | Q_OBJECT |
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| 62 | |
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| 63 | public: |
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| 64 | explicit DocumentView(QWidget* parent = 0); |
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| 65 | ~DocumentView(); |
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| 66 | |
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| 67 | const QFileInfo& fileInfo() const { return m_fileInfo; } |
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| 68 | bool wasModified() const { return m_wasModified; } |
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| 69 | |
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| 70 | int numberOfPages() const { return m_pages.count(); } |
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| 71 | int currentPage() const { return m_currentPage; } |
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| 72 | |
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| 73 | bool hasFrontMatter() const { return m_firstPage > 1; } |
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| 74 | |
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| 75 | int firstPage() const { return m_firstPage; } |
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| 76 | void setFirstPage(int firstPage); |
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| 77 | |
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| 78 | QString defaultPageLabelFromNumber(int number) const; |
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| 79 | QString pageLabelFromNumber(int number) const; |
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| 80 | int pageNumberFromLabel(const QString& label) const; |
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| 81 | |
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| 82 | QString title() const; |
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| 83 | |
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| 84 | static QStringList openFilter(); |
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| 85 | QStringList saveFilter() const; |
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| 86 | |
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| 87 | bool canSave() const; |
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| 88 | |
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| 89 | bool continuousMode() const { return m_continuousMode; } |
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| 90 | void setContinuousMode(bool continuousMode); |
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| 91 | |
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| 92 | LayoutMode layoutMode() const; |
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| 93 | void setLayoutMode(LayoutMode layoutMode); |
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| 94 | |
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| 95 | bool rightToLeftMode() const { return m_rightToLeftMode; } |
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| 96 | void setRightToLeftMode(bool rightToLeftMode); |
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| 97 | |
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| 98 | ScaleMode scaleMode() const { return m_scaleMode; } |
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| 99 | void setScaleMode(ScaleMode scaleMode); |
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| 100 | |
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| 101 | qreal scaleFactor() const { return m_scaleFactor; } |
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| 102 | void setScaleFactor(qreal scaleFactor); |
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| 103 | |
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| 104 | Rotation rotation() const { return m_rotation; } |
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| 105 | void setRotation(Rotation rotation); |
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| 106 | |
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| 107 | qpdfview::RenderFlags renderFlags() const { return m_renderFlags; } |
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| 108 | void setRenderFlags(qpdfview::RenderFlags renderFlags); |
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| 109 | void setRenderFlag(qpdfview::RenderFlag renderFlag, bool enabled = true); |
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| 110 | |
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| 111 | bool invertColors() const { return m_renderFlags.testFlag(InvertColors); } |
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| 112 | void setInvertColors(bool invertColors) { setRenderFlag(InvertColors, invertColors); } |
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| 113 | |
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| 114 | bool convertToGrayscale() const { return m_renderFlags.testFlag(ConvertToGrayscale); } |
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| 115 | void setConvertToGrayscale(bool convertToGrayscale) { setRenderFlag(ConvertToGrayscale, convertToGrayscale); } |
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| 116 | |
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| 117 | bool trimMargins() const { return m_renderFlags.testFlag(TrimMargins); } |
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| 118 | void setTrimMargins(bool trimMargins) { setRenderFlag(TrimMargins, trimMargins); } |
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| 119 | |
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| 120 | CompositionMode compositionMode() const; |
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| 121 | void setCompositionMode(CompositionMode compositionMode); |
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| 122 | |
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| 123 | bool highlightAll() const { return m_highlightAll; } |
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| 124 | void setHighlightAll(bool highlightAll); |
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| 125 | |
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| 126 | RubberBandMode rubberBandMode() const { return m_rubberBandMode; } |
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| 127 | void setRubberBandMode(RubberBandMode rubberBandMode); |
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| 128 | |
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| 129 | QSize thumbnailsViewportSize() const { return m_thumbnailsViewportSize; } |
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| 130 | void setThumbnailsViewportSize(const QSize& thumbnailsViewportSize); |
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| 131 | |
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| 132 | Qt::Orientation thumbnailsOrientation() const { return m_thumbnailsOrientation; } |
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| 133 | void setThumbnailsOrientation(Qt::Orientation thumbnailsOrientation); |
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| 134 | |
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| 135 | const QVector< ThumbnailItem* >& thumbnailItems() const { return m_thumbnailItems; } |
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| 136 | QGraphicsScene* thumbnailsScene() const { return m_thumbnailsScene; } |
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| 137 | |
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| 138 | QStandardItemModel* outlineModel() const { return m_outlineModel; } |
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| 139 | QStandardItemModel* propertiesModel() const { return m_propertiesModel; } |
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| 140 | |
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| 141 | QStandardItemModel* fontsModel() const; |
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| 142 | |
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| 143 | bool searchWasCanceled() const; |
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| 144 | int searchProgress() const; |
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| 145 | |
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| 146 | QString searchText() const; |
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| 147 | bool searchMatchCase() const; |
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| 148 | bool searchWholeWords() const; |
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| 149 | |
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| 150 | QPair< QString, QString > searchContext(int page, const QRectF& rect) const; |
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| 151 | |
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| 152 | struct SourceLink |
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| 153 | { |
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| 154 | QString name; |
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| 155 | int line; |
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| 156 | int column; |
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| 157 | |
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| 158 | operator bool() const { return !name.isNull(); } |
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| 159 | |
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| 160 | }; |
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| 161 | |
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| 162 | SourceLink sourceLink(const QPoint& pos); |
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| 163 | void openInSourceEditor(const SourceLink& sourceLink); |
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| 164 | |
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| 165 | signals: |
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| 166 | void documentChanged(); |
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| 167 | void documentModified(); |
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| 168 | |
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| 169 | void numberOfPagesChanged(int numberOfPages); |
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| 170 | void currentPageChanged(int currentPage, bool trackChange = false); |
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| 171 | |
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| 172 | void canJumpChanged(bool backward, bool forward); |
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| 173 | |
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| 174 | void continuousModeChanged(bool continuousMode); |
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| 175 | void layoutModeChanged(LayoutMode layoutMode); |
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| 176 | void rightToLeftModeChanged(bool rightToLeftMode); |
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| 177 | void scaleModeChanged(ScaleMode scaleMode); |
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| 178 | void scaleFactorChanged(qreal scaleFactor); |
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| 179 | void rotationChanged(Rotation rotation); |
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| 180 | |
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| 181 | void linkClicked(int page); |
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| 182 | void linkClicked(bool newTab, const QString& filePath, int page); |
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| 183 | |
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| 184 | void renderFlagsChanged(qpdfview::RenderFlags renderFlags); |
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| 185 | |
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| 186 | void invertColorsChanged(bool invertColors); |
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| 187 | void convertToGrayscaleChanged(bool convertToGrayscale); |
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| 188 | void trimMarginsChanged(bool trimMargins); |
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| 189 | |
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| 190 | void compositionModeChanged(CompositionMode compositionMode); |
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| 191 | |
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| 192 | void highlightAllChanged(bool highlightAll); |
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| 193 | void rubberBandModeChanged(RubberBandMode rubberBandMode); |
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| 194 | |
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| 195 | void searchFinished(); |
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| 196 | void searchProgressChanged(int progress); |
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| 197 | |
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| 198 | public slots: |
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| 199 | void show(); |
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| 200 | |
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| 201 | bool open(const QString& filePath); |
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| 202 | bool refresh(); |
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| 203 | bool save(const QString& filePath, bool withChanges); |
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| 204 | bool print(QPrinter* printer, const PrintOptions& printOptions = PrintOptions()); |
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| 205 | |
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| 206 | void previousPage(); |
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| 207 | void nextPage(); |
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| 208 | void firstPage(); |
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| 209 | void lastPage(); |
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| 210 | |
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| 211 | void jumpToPage(int page, bool trackChange = true, qreal newLeft = qQNaN(), qreal newTop = qQNaN()); |
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| 212 | |
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| 213 | bool canJumpBackward() const; |
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| 214 | void jumpBackward(); |
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| 215 | |
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| 216 | bool canJumpForward() const; |
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| 217 | void jumpForward(); |
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| 218 | |
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| 219 | void temporaryHighlight(int page, const QRectF& highlight); |
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| 220 | |
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| 221 | void startSearch(const QString& text, bool matchCase, bool wholeWords); |
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| 222 | void cancelSearch(); |
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| 223 | |
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| 224 | void clearResults(); |
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| 225 | |
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| 226 | void findPrevious(); |
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| 227 | void findNext(); |
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| 228 | void findResult(const QModelIndex& index); |
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| 229 | |
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| 230 | void zoomIn(); |
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| 231 | void zoomOut(); |
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| 232 | void originalSize(); |
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| 233 | |
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| 234 | void rotateLeft(); |
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| 235 | void rotateRight(); |
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| 236 | |
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| 237 | void startPresentation(); |
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| 238 | |
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| 239 | protected slots: |
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| 240 | void on_verticalScrollBar_valueChanged(); |
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| 241 | |
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| 242 | void on_autoRefresh_timeout(); |
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| 243 | void on_prefetch_timeout(); |
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| 244 | |
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| 245 | void on_temporaryHighlight_timeout(); |
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| 246 | |
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| 247 | void on_searchTask_progressChanged(int progress); |
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| 248 | void on_searchTask_resultsReady(int index, const QList< QRectF >& results); |
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| 249 | |
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| 250 | void on_pages_cropRectChanged(); |
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| 251 | void on_thumbnails_cropRectChanged(); |
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| 252 | |
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| 253 | void on_pages_linkClicked(bool newTab, int page, qreal left, qreal top); |
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| 254 | void on_pages_linkClicked(bool newTab, const QString& fileName, int page); |
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| 255 | void on_pages_linkClicked(const QString& url); |
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| 256 | |
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| 257 | void on_pages_rubberBandFinished(); |
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| 258 | |
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| 259 | void on_pages_zoomToSelection(int page, const QRectF& rect); |
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| 260 | |
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| 261 | void on_pages_wasModified(); |
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| 262 | |
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| 263 | protected: |
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| 264 | void resizeEvent(QResizeEvent* event); |
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| 265 | |
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| 266 | void keyPressEvent(QKeyEvent* event); |
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| 267 | void mousePressEvent(QMouseEvent* event); |
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| 268 | void wheelEvent(QWheelEvent* event); |
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| 269 | |
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| 270 | void contextMenuEvent(QContextMenuEvent* event); |
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| 271 | |
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| 272 | private: |
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| 273 | Q_DISABLE_COPY(DocumentView) |
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| 274 | |
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| 275 | static Settings* s_settings; |
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| 276 | static ShortcutHandler* s_shortcutHandler; |
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| 277 | |
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| 278 | QFileSystemWatcher* m_autoRefreshWatcher; |
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| 279 | QTimer* m_autoRefreshTimer; |
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| 280 | |
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| 281 | QTimer* m_prefetchTimer; |
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| 282 | |
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| 283 | Model::Document* m_document; |
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| 284 | QVector< Model::Page* > m_pages; |
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| 285 | |
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| 286 | QFileInfo m_fileInfo; |
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| 287 | bool m_wasModified; |
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| 288 | |
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| 289 | int m_currentPage; |
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| 290 | int m_firstPage; |
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| 291 | |
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| 292 | #ifdef WITH_CUPS |
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| 293 | |
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| 294 | bool printUsingCUPS(QPrinter* printer, const PrintOptions& printOptions, int fromPage, int toPage); |
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| 295 | |
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| 296 | #endif // WITH_CUPS |
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| 297 | |
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| 298 | bool printUsingQt(QPrinter* printer, const PrintOptions& printOptions, int fromPage, int toPage); |
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| 299 | |
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| 300 | struct Position |
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| 301 | { |
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| 302 | int page; |
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| 303 | qreal left; |
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| 304 | qreal top; |
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| 305 | |
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| 306 | Position(int page, qreal left, qreal top) : page(page), left(left), top(top) {} |
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| 307 | |
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| 308 | }; |
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| 309 | |
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| 310 | QList< Position > m_past; |
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| 311 | QList< Position > m_future; |
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| 312 | |
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| 313 | void saveLeftAndTop(qreal& left, qreal& top) const; |
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| 314 | |
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| 315 | QScopedPointer< DocumentLayout > m_layout; |
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| 316 | |
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| 317 | bool m_continuousMode; |
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| 318 | bool m_rightToLeftMode; |
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| 319 | ScaleMode m_scaleMode; |
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| 320 | qreal m_scaleFactor; |
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| 321 | Rotation m_rotation; |
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| 322 | |
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| 323 | qpdfview::RenderFlags m_renderFlags; |
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| 324 | |
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| 325 | bool m_highlightAll; |
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| 326 | RubberBandMode m_rubberBandMode; |
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| 327 | |
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| 328 | QVector< PageItem* > m_pageItems; |
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| 329 | QVector< ThumbnailItem* > m_thumbnailItems; |
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| 330 | |
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| 331 | QGraphicsRectItem* m_highlight; |
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| 332 | |
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| 333 | QSize m_thumbnailsViewportSize; |
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| 334 | Qt::Orientation m_thumbnailsOrientation; |
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| 335 | |
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| 336 | QGraphicsScene* m_thumbnailsScene; |
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| 337 | |
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| 338 | QStandardItemModel* m_outlineModel; |
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| 339 | QStandardItemModel* m_propertiesModel; |
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| 340 | |
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| 341 | bool checkDocument(const QString& filePath, Model::Document* document, QVector< Model::Page* >& pages); |
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| 342 | |
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| 343 | void loadFallbackOutline(); |
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| 344 | void loadDocumentDefaults(); |
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| 345 | |
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| 346 | void adjustScrollBarPolicy(); |
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| 347 | void disconnectVerticalScrollBar(); |
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| 348 | void reconnectVerticalScrollBar(); |
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| 349 | |
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| 350 | void prepareDocument(Model::Document* document, const QVector< Model::Page* >& pages); |
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| 351 | void preparePages(); |
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| 352 | void prepareThumbnails(); |
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| 353 | void prepareBackground(); |
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| 354 | |
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| 355 | void prepareScene(); |
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| 356 | void prepareView(qreal newLeft = 0.0, qreal newTop = 0.0, bool forceScroll = true, int scrollToPage = 0); |
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| 357 | |
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| 358 | void prepareThumbnailsScene(); |
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| 359 | |
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| 360 | void prepareHighlight(int index, const QRectF& highlight); |
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| 361 | |
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| 362 | // search |
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| 363 | |
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| 364 | static SearchModel* s_searchModel; |
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| 365 | |
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| 366 | QPersistentModelIndex m_currentResult; |
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| 367 | |
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| 368 | SearchTask* m_searchTask; |
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| 369 | |
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| 370 | void checkResult(); |
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| 371 | void applyResult(); |
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| 372 | |
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| 373 | }; |
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| 374 | |
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| 375 | } // qpdfview |
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| 376 | |
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| 377 | Q_DECLARE_METATYPE(qpdfview::DocumentView::SourceLink) |
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| 378 | |
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| 379 | #endif // DOCUMENTVIEW_H |
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