mirror of
https://invent.kde.org/graphics/okular
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![Albert Astals Cid](/assets/img/avatar_default.png)
It is defenitely not a full implementation but it's enough for the one file we have that needs it for now BUGS: 472764
309 lines
11 KiB
C++
309 lines
11 KiB
C++
/*
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SPDX-FileCopyrightText: 2004 Enrico Ros <eros.kde@email.it>
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SPDX-FileCopyrightText: 2004 Albert Astals Cid <aacid@kde.org>
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Work sponsored by the LiMux project of the city of Munich:
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SPDX-FileCopyrightText: 2017 Klarälvdalens Datakonsult AB a KDAB Group company <info@kdab.com>
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With portions of code from kpdf/kpdf_pagewidget.h by:
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SPDX-FileCopyrightText: 2002 Wilco Greven <greven@kde.org>
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SPDX-FileCopyrightText: 2003 Christophe Devriese <Christophe.Devriese@student.kuleuven.ac.be>
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SPDX-FileCopyrightText: 2003 Laurent Montel <montel@kde.org>
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SPDX-FileCopyrightText: 2003 Kurt Pfeifle <kpfeifle@danka.de>
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SPDX-License-Identifier: GPL-2.0-or-later
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*/
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// This file follows coding style described in kdebase/kicker/HACKING
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#ifndef _OKULAR_PAGEVIEW_H_
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#define _OKULAR_PAGEVIEW_H_
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#include "config-okular.h"
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#include "core/area.h"
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#include "core/observer.h"
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#include "core/view.h"
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#include "pageviewutils.h"
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#include <QAbstractScrollArea>
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#include <QList>
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#include <QVector>
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class QMenu;
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class QMimeData;
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class KActionCollection;
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namespace Okular
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{
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class Action;
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class Document;
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class DocumentViewport;
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class FormField;
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class FormFieldSignature;
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class Annotation;
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class MovieAction;
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class RenditionAction;
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}
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class PageViewPrivate;
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class QGestureEvent;
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/**
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* @short The main view. Handles zoom and continuous mode.. oh, and page
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* @short display of course :-)
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* ...
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*/
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class PageView : public QAbstractScrollArea, public Okular::DocumentObserver, public Okular::View
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{
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Q_OBJECT
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public:
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PageView(QWidget *parent, Okular::Document *document);
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~PageView() override;
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// Zoom mode ( last 4 are internally used only! )
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enum ZoomMode { ZoomFixed = 0, ZoomFitWidth = 1, ZoomFitPage = 2, ZoomFitAuto = 3, ZoomIn, ZoomOut, ZoomRefreshCurrent, ZoomActual };
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enum ClearMode { ClearAllSelection, ClearOnlyDividers };
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// create actions that interact with this widget
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void setupBaseActions(KActionCollection *ac);
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void setupViewerActions(KActionCollection *ac);
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void setupActions(KActionCollection *ac);
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void setupActionsPostGUIActivated();
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void updateActionState(bool docHasPages, bool docHasFormWidgets);
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// misc methods (from RMB menu/children)
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bool canFitPageWidth() const;
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void fitPageWidth(int page);
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// keep in sync with pageviewutils
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void displayMessage(const QString &message, const QString &details = QString(), PageViewMessage::Icon icon = PageViewMessage::Info, int duration = -1);
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// inherited from DocumentObserver
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void notifySetup(const QVector<Okular::Page *> &pages, int setupFlags) override;
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void notifyViewportChanged(bool smoothMove) override;
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void notifyPageChanged(int pageNumber, int changedFlags) override;
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void notifyContentsCleared(int changedFlags) override;
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void notifyZoom(int factor) override;
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bool canUnloadPixmap(int pageNum) const override;
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void notifyCurrentPageChanged(int previous, int current) override;
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// inherited from View
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bool supportsCapability(ViewCapability capability) const override;
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CapabilityFlags capabilityFlags(ViewCapability capability) const override;
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QVariant capability(ViewCapability capability) const override;
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void setCapability(ViewCapability capability, const QVariant &option) override;
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QList<Okular::RegularAreaRect *> textSelections(const QPoint start, const QPoint end, int &firstpage);
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Okular::RegularAreaRect *textSelectionForItem(const PageViewItem *item, const QPoint startPoint = QPoint(), const QPoint endPoint = QPoint());
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void reparseConfig();
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KActionCollection *actionCollection() const;
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QAction *toggleFormsAction() const;
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int contentAreaWidth() const;
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int contentAreaHeight() const;
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QPoint contentAreaPosition() const;
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QPoint contentAreaPoint(const QPoint pos) const;
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QPointF contentAreaPoint(const QPointF pos) const;
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bool areSourceLocationsShownGraphically() const;
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void setShowSourceLocationsGraphically(bool show);
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void setLastSourceLocationViewport(const Okular::DocumentViewport &vp);
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void clearLastSourceLocationViewport();
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void updateCursor();
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void highlightSignatureFormWidget(const Okular::FormFieldSignature *form);
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void showNoSigningCertificatesDialog(bool nonDateValidCerts);
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Okular::Document *document() const;
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public Q_SLOTS:
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void copyTextSelection() const;
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void selectAll();
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void openAnnotationWindow(Okular::Annotation *annotation, int pageNumber);
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void reloadForms();
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void slotSelectPage();
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void slotAction(Okular::Action *action);
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void slotMouseUpAction(Okular::Action *action, Okular::FormField *form);
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void slotFormChanged(int pageNumber);
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void externalKeyPressEvent(QKeyEvent *e);
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Q_SIGNALS:
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void rightClick(const Okular::Page *, const QPoint);
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void mouseBackButtonClick();
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void mouseForwardButtonClick();
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void escPressed();
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void fitWindowToPage(const QSize pageViewPortSize, const QSize pageSize);
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void triggerSearch(const QString &text);
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void requestOpenFile(const QString &filePath, int pageNumber);
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protected:
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bool event(QEvent *event) override;
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void resizeEvent(QResizeEvent *) override;
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bool gestureEvent(QGestureEvent *e);
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// mouse / keyboard events
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void keyPressEvent(QKeyEvent *) override;
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void keyReleaseEvent(QKeyEvent *) override;
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void inputMethodEvent(QInputMethodEvent *) override;
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void wheelEvent(QWheelEvent *) override;
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void paintEvent(QPaintEvent *e) override;
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void tabletEvent(QTabletEvent *e) override;
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void continuousZoom(double delta);
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void continuousZoomEnd();
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void mouseMoveEvent(QMouseEvent *e) override;
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void mousePressEvent(QMouseEvent *e) override;
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void mouseReleaseEvent(QMouseEvent *e) override;
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void mouseDoubleClickEvent(QMouseEvent *e) override;
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bool viewportEvent(QEvent *e) override;
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void scrollContentsBy(int dx, int dy) override;
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private:
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// draw background and items on the opened qpainter
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void drawDocumentOnPainter(const QRect contentsRect, QPainter *p);
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// update item width and height using current zoom parameters
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void updateItemSize(PageViewItem *item, int colWidth, int rowHeight);
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// return the widget placed on a certain point or 0 if clicking on empty space
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PageViewItem *pickItemOnPoint(int x, int y);
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// start / modify / clear selection rectangle
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void selectionStart(const QPoint pos, const QColor &color, bool aboveAll = false);
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void selectionClear(const ClearMode mode = ClearAllSelection);
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QMimeData *getTableContents() const;
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void drawTableDividers(QPainter *screenPainter);
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void guessTableDividers();
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// update either text or rectangle selection
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void updateSelection(const QPoint pos);
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// compute the zoom factor value for FitWidth and FitPage mode
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double zoomFactorFitMode(ZoomMode mode);
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// update internal zoom values and end in a slotRelayoutPages();
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void updateZoom(ZoomMode newZoomMode);
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// update the text on the label using global zoom value or current page's one
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void updateZoomText();
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// update the text enabled status of the zoom actions
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void updateZoomActionsEnabledStatus();
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// update view mode (single, facing...)
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void updateViewMode(const int nr);
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void textSelectionClear();
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// updates cursor
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void updateCursor(const QPoint p);
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void moveMagnifier(const QPoint p);
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void updateMagnifier(const QPoint p);
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int viewColumns() const;
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void center(int cx, int cy, bool smoothMove = false);
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void scrollTo(int x, int y, bool smoothMove = false);
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void toggleFormWidgets(bool on);
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void resizeContentArea(const QSize newSize);
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void updatePageStep();
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void addSearchWithinDocumentAction(QMenu *menu, const QString &searchText);
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void addWebShortcutsMenu(QMenu *menu, const QString &text);
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QMenu *createProcessLinkMenu(PageViewItem *item, const QPoint eventPos);
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// used when selecting stuff, makes the view scroll as necessary to keep the mouse inside the view
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void scrollPosIntoView(const QPoint pos);
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QPoint viewportToContentArea(const Okular::DocumentViewport &vp) const;
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// called from slots to turn off trim modes mutually exclusive to id
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void updateTrimMode(int except_id);
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// handle link clicked
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bool mouseReleaseOverLink(const Okular::ObjectRect *rect) const;
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void createAnnotationsVideoWidgets(PageViewItem *item, const QList<Okular::Annotation *> &annotations);
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// Update speed of animated smooth scroll transitions
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void updateSmoothScrollAnimationSpeed();
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/*
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* returns the continuous mode value of the current document, by either:
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* - if the continuous mode action is initialized, then we return its associated value
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* - if not, then we will fallback to the default settings
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*/
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bool getContinuousMode() const;
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// don't want to expose classes in here
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class PageViewPrivate *d;
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private Q_SLOTS:
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// used to decouple the notifyViewportChanged calle
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void slotRealNotifyViewportChanged(bool smoothMove);
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// activated either directly or via queued connection on notifySetup
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void slotRelayoutPages();
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// activated by the resize event delay timer
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void delayedResizeEvent();
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// activated either directly or via the contentsMoving(int,int) signal
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void slotRequestVisiblePixmaps(int newValue = -1);
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// activated by the autoscroll timer (Shift+Up/Down keys)
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void slotAutoScroll();
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// activated by the dragScroll timer
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void slotDragScroll();
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// show the welcome message
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void slotShowWelcome();
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// activated by left click timer
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void slotShowSizeAllCursor();
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void slotHandleWebShortcutAction();
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void slotConfigureWebShortcuts();
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// connected to local actions (toolbar, menu, ..)
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void slotZoom();
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void slotZoomIn();
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void slotZoomOut();
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void slotZoomActual();
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void slotFitToWidthToggled(bool);
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void slotFitToPageToggled(bool);
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void slotAutoFitToggled(bool);
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void slotViewMode(QAction *action);
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void slotContinuousToggled();
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void slotReadingDirectionToggled(bool leftToRight);
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void slotUpdateReadingDirectionAction();
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void slotSetMouseNormal();
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void slotSetMouseZoom();
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void slotSetMouseMagnifier();
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void slotSetMouseSelect();
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void slotSetMouseTextSelect();
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void slotSetMouseTableSelect();
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void slotSignature();
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void slotAutoScrollUp();
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void slotAutoScrollDown();
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void slotScrollUp(int nSteps = 0);
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void slotScrollDown(int nSteps = 0);
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void slotRotateClockwise();
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void slotRotateCounterClockwise();
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void slotRotateOriginal();
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void slotTrimMarginsToggled(bool);
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void slotTrimToSelectionToggled(bool);
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void slotToggleForms();
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void slotRefreshPage();
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#if HAVE_SPEECH
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void slotSpeakDocument();
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void slotSpeakCurrentPage();
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void slotStopSpeaks();
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void slotPauseResumeSpeech();
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#endif
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void slotAnnotationWindowDestroyed(QObject *window);
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void slotProcessMovieAction(const Okular::MovieAction *action);
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void slotProcessRenditionAction(const Okular::RenditionAction *action);
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void slotFitWindowToPage();
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};
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#endif
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/* kate: replace-tabs on; indent-width 4; */
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