mirror of
https://invent.kde.org/graphics/okular
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284 lines
12 KiB
C++
284 lines
12 KiB
C++
/***************************************************************************
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* Copyright (C) 2004 by Enrico Ros <eros.kde@email.it> *
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* Copyright (C) 2004 by Albert Astals Cid <aacid@kde.org> *
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* Copyright (C) 2017 Klarälvdalens Datakonsult AB, a KDAB Group *
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* company, info@kdab.com. Work sponsored by the *
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* LiMux project of the city of Munich *
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* *
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* With portions of code from kpdf/kpdf_pagewidget.h by: *
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* Copyright (C) 2002 by Wilco Greven <greven@kde.org> *
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* Copyright (C) 2003 by Christophe Devriese *
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* <Christophe.Devriese@student.kuleuven.ac.be> *
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* Copyright (C) 2003 by Laurent Montel <montel@kde.org> *
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* Copyright (C) 2003 by Kurt Pfeifle <kpfeifle@danka.de> *
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* *
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* This program 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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***************************************************************************/
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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 <qabstractscrollarea.h>
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#include <qlist.h>
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#include <qvector.h>
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#include "ui/pageviewutils.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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class KActionCollection;
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namespace Okular {
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class Action;
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class Document;
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class DocumentViewport;
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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();
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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,
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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 * collection );
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void setupViewerActions( KActionCollection * collection );
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void setupActions( KActionCollection * collection );
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void updateActionState( bool docHasPages, bool docChanged, 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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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 slotToggleChangeColors();
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void slotSetChangeColors(bool active);
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void slotSelectPage();
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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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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 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 & pageViewRect, QPainter * p );
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// update item width and height using current zoom parameters
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void updateItemSize( PageViewItem * item, int columnWidth, 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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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 newZm );
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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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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);
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void scrollTo( int x, int y );
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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 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 QLinkedList< Okular::Annotation * > &annotations);
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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 viewport move timer
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void slotMoveViewport();
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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( bool );
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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 slotToggleAnnotator( bool );
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void slotAutoScrollUp();
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void slotAutoScrollDown();
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void slotScrollUp( bool singleStep = false );
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void slotScrollDown( bool singleStep = false );
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void slotRotateClockwise();
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void slotRotateCounterClockwise();
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void slotRotateOriginal();
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void slotPageSizes( int );
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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 slotFormChanged( int pageNumber );
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void slotRefreshPage();
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#ifdef HAVE_SPEECH
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void slotSpeakDocument();
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void slotSpeakCurrentPage();
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void slotStopSpeaks();
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#endif
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void slotAction( Okular::Action *action );
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void externalKeyPressEvent( QKeyEvent *e );
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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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