391 lines
11 KiB
C++
391 lines
11 KiB
C++
/*
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Copyright 2014 S. Razi Alavizadeh
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Copyright 2012-2014, 2018 Adam Reichold
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Copyright 2014 Dorian Scholz
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Copyright 2018 Egor Zenkov
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This file is part of qpdfview.
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qpdfview 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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qpdfview 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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You should have received a copy of the GNU General Public License
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along with qpdfview. If not, see <http://www.gnu.org/licenses/>.
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*/
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#ifndef DOCUMENTVIEW_H
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#define DOCUMENTVIEW_H
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#include <QFileInfo>
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#include <QGraphicsView>
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#include <QMap>
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#include <QPersistentModelIndex>
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class QDomNode;
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class QFileSystemWatcher;
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class QPrinter;
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class QStandardItemModel;
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#include "renderparam.h"
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#include "printoptions.h"
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namespace qpdfview
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{
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namespace Model
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{
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class Annotation;
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class Page;
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class Document;
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}
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class Settings;
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class PageItem;
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class ThumbnailItem;
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class SearchModel;
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class SearchTask;
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class PresentationView;
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class ShortcutHandler;
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struct DocumentLayout;
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class DocumentView : public QGraphicsView
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{
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Q_OBJECT
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public:
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explicit DocumentView(QWidget* parent = 0);
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~DocumentView();
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const QFileInfo& fileInfo() const { return m_fileInfo; }
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bool wasModified() const { return m_wasModified; }
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int numberOfPages() const { return m_pages.count(); }
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int currentPage() const { return m_currentPage; }
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bool hasFrontMatter() const { return m_firstPage > 1; }
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int firstPage() const { return m_firstPage; }
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void setFirstPage(int firstPage);
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QString defaultPageLabelFromNumber(int number) const;
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QString pageLabelFromNumber(int number) const;
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int pageNumberFromLabel(const QString& label) const;
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QString title() const;
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static QStringList openFilter();
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QStringList saveFilter() const;
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bool canSave() const;
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bool continuousMode() const { return m_continuousMode; }
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void setContinuousMode(bool continuousMode);
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LayoutMode layoutMode() const;
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void setLayoutMode(LayoutMode layoutMode);
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bool rightToLeftMode() const { return m_rightToLeftMode; }
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void setRightToLeftMode(bool rightToLeftMode);
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ScaleMode scaleMode() const { return m_scaleMode; }
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void setScaleMode(ScaleMode scaleMode);
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qreal scaleFactor() const { return m_scaleFactor; }
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void setScaleFactor(qreal scaleFactor);
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Rotation rotation() const { return m_rotation; }
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void setRotation(Rotation rotation);
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qpdfview::RenderFlags renderFlags() const { return m_renderFlags; }
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void setRenderFlags(qpdfview::RenderFlags renderFlags);
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void setRenderFlag(qpdfview::RenderFlag renderFlag, bool enabled = true);
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bool invertColors() const { return m_renderFlags.testFlag(InvertColors); }
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void setInvertColors(bool invertColors) { setRenderFlag(InvertColors, invertColors); }
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bool convertToGrayscale() const { return m_renderFlags.testFlag(ConvertToGrayscale); }
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void setConvertToGrayscale(bool convertToGrayscale) { setRenderFlag(ConvertToGrayscale, convertToGrayscale); }
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bool trimMargins() const { return m_renderFlags.testFlag(TrimMargins); }
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void setTrimMargins(bool trimMargins) { setRenderFlag(TrimMargins, trimMargins); }
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CompositionMode compositionMode() const;
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void setCompositionMode(CompositionMode compositionMode);
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bool highlightAll() const { return m_highlightAll; }
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void setHighlightAll(bool highlightAll);
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RubberBandMode rubberBandMode() const { return m_rubberBandMode; }
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void setRubberBandMode(RubberBandMode rubberBandMode);
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QSize thumbnailsViewportSize() const { return m_thumbnailsViewportSize; }
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void setThumbnailsViewportSize(QSize thumbnailsViewportSize);
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Qt::Orientation thumbnailsOrientation() const { return m_thumbnailsOrientation; }
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void setThumbnailsOrientation(Qt::Orientation thumbnailsOrientation);
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const QVector< ThumbnailItem* >& thumbnailItems() const { return m_thumbnailItems; }
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QGraphicsScene* thumbnailsScene() const { return m_thumbnailsScene; }
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QAbstractItemModel* outlineModel() const { return m_outlineModel.data(); }
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QAbstractItemModel* propertiesModel() const { return m_propertiesModel.data(); }
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QSet< QByteArray > saveExpandedPaths() const;
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void restoreExpandedPaths(const QSet< QByteArray >& expandedPaths);
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QAbstractItemModel* fontsModel() const;
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bool searchWasCanceled() const;
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int searchProgress() const;
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QString searchText() const;
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bool searchMatchCase() const;
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bool searchWholeWords() const;
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QPair< QString, QString > searchContext(int page, const QRectF& rect) const;
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bool hasSearchResults();
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QString resolveFileName(QString fileName) const;
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QUrl resolveUrl(QUrl url) const;
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struct SourceLink
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{
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QString name;
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int line;
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int column;
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operator bool() const { return !name.isNull(); }
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};
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SourceLink sourceLink(QPoint pos);
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void openInSourceEditor(const SourceLink& sourceLink);
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signals:
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void documentChanged();
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void documentModified();
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void numberOfPagesChanged(int numberOfPages);
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void currentPageChanged(int currentPage, bool trackChange = false);
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void canJumpChanged(bool backward, bool forward);
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void continuousModeChanged(bool continuousMode);
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void layoutModeChanged(LayoutMode layoutMode);
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void rightToLeftModeChanged(bool rightToLeftMode);
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void scaleModeChanged(ScaleMode scaleMode);
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void scaleFactorChanged(qreal scaleFactor);
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void rotationChanged(Rotation rotation);
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void linkClicked(int page);
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void linkClicked(bool newTab, const QString& filePath, int page);
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void renderFlagsChanged(qpdfview::RenderFlags renderFlags);
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void invertColorsChanged(bool invertColors);
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void convertToGrayscaleChanged(bool convertToGrayscale);
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void trimMarginsChanged(bool trimMargins);
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void compositionModeChanged(CompositionMode compositionMode);
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void highlightAllChanged(bool highlightAll);
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void rubberBandModeChanged(RubberBandMode rubberBandMode);
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void searchFinished();
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void searchProgressChanged(int progress);
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public slots:
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void show();
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bool open(const QString& filePath);
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bool refresh();
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bool save(const QString& filePath, bool withChanges);
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bool print(QPrinter* printer, const PrintOptions& printOptions = PrintOptions());
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void previousPage();
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void nextPage();
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void firstPage();
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void lastPage();
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void jumpToPage(int page, bool trackChange = true, qreal newLeft = qQNaN(), qreal newTop = qQNaN());
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bool canJumpBackward() const;
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void jumpBackward();
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bool canJumpForward() const;
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void jumpForward();
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void temporaryHighlight(int page, const QRectF& highlight);
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void startSearch(const QString& text, bool matchCase, bool wholeWords);
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void cancelSearch();
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void clearResults();
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void findPrevious();
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void findNext();
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void findResult(const QModelIndex& index);
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void zoomIn();
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void zoomOut();
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void originalSize();
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void rotateLeft();
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void rotateRight();
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void startPresentation();
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protected slots:
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void on_verticalScrollBar_valueChanged();
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void on_autoRefresh_timeout();
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void on_prefetch_timeout();
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void on_temporaryHighlight_timeout();
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void on_searchTask_progressChanged(int progress);
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void on_searchTask_resultsReady(int index, const QList< QRectF >& results);
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void on_pages_cropRectChanged();
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void on_thumbnails_cropRectChanged();
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void on_pages_linkClicked(bool newTab, int page, qreal left, qreal top);
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void on_pages_linkClicked(bool newTab, const QString& fileName, int page);
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void on_pages_linkClicked(const QString& url);
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void on_pages_rubberBandFinished();
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void on_pages_zoomToSelection(int page, const QRectF& rect);
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void on_pages_openInSourceEditor(int page, QPointF pos);
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void on_pages_wasModified();
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protected:
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void resizeEvent(QResizeEvent* event);
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void keyPressEvent(QKeyEvent* event);
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void mousePressEvent(QMouseEvent* event);
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void wheelEvent(QWheelEvent* event);
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void contextMenuEvent(QContextMenuEvent* event);
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private:
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Q_DISABLE_COPY(DocumentView)
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static Settings* s_settings;
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static ShortcutHandler* s_shortcutHandler;
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QFileSystemWatcher* m_autoRefreshWatcher;
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QTimer* m_autoRefreshTimer;
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QTimer* m_prefetchTimer;
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Model::Document* m_document;
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QVector< Model::Page* > m_pages;
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QFileInfo m_fileInfo;
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bool m_wasModified;
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int m_currentPage;
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int m_firstPage;
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#ifdef WITH_CUPS
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bool printUsingCUPS(QPrinter* printer, const PrintOptions& printOptions, int fromPage, int toPage);
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#endif // WITH_CUPS
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bool printUsingQt(QPrinter* printer, const PrintOptions& printOptions, int fromPage, int toPage);
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struct Position
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{
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int page;
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qreal left;
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qreal top;
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Position(int page, qreal left, qreal top) : page(page), left(left), top(top) {}
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};
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QList< Position > m_past;
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QList< Position > m_future;
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void saveLeftAndTop(qreal& left, qreal& top) const;
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QScopedPointer< DocumentLayout > m_layout;
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bool m_continuousMode;
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bool m_rightToLeftMode;
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ScaleMode m_scaleMode;
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qreal m_scaleFactor;
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Rotation m_rotation;
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qpdfview::RenderFlags m_renderFlags;
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bool m_highlightAll;
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RubberBandMode m_rubberBandMode;
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QVector< PageItem* > m_pageItems;
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QVector< ThumbnailItem* > m_thumbnailItems;
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QGraphicsRectItem* m_highlight;
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QSize m_thumbnailsViewportSize;
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Qt::Orientation m_thumbnailsOrientation;
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QGraphicsScene* m_thumbnailsScene;
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QScopedPointer< QAbstractItemModel > m_outlineModel;
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QScopedPointer< QAbstractItemModel > m_propertiesModel;
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bool checkDocument(const QString& filePath, Model::Document* document, QVector< Model::Page* >& pages);
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void loadDocumentDefaults();
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void adjustScrollBarPolicy();
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bool m_verticalScrollBarChangedBlocked;
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class VerticalScrollBarChangedBlocker;
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void prepareDocument(Model::Document* document, const QVector< Model::Page* >& pages);
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void preparePages();
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void prepareThumbnails();
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void prepareBackground();
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void prepareScene();
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void prepareView(qreal newLeft = 0.0, qreal newTop = 0.0, bool forceScroll = true, int scrollToPage = 0);
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void prepareThumbnailsScene();
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void prepareHighlight(int index, const QRectF& highlight);
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// search
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static SearchModel* s_searchModel;
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QPersistentModelIndex m_currentResult;
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SearchTask* m_searchTask;
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void checkResult();
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void applyResult();
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};
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} // qpdfview
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Q_DECLARE_METATYPE(qpdfview::DocumentView::SourceLink)
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#endif // DOCUMENTVIEW_H
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