mirror of
https://invent.kde.org/graphics/okular
synced 2024-08-24 18:35:37 +00:00
224 lines
6.8 KiB
C++
224 lines
6.8 KiB
C++
/***************************************************************************
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* Copyright (C) 2004-2005 by Enrico Ros <eros.kde@email.it> *
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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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* 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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#ifndef _PAGEVIEW_UTILS_H_
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#define _PAGEVIEW_UTILS_H_
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#include <qwidget.h>
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#include <qpixmap.h>
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#include <qrect.h>
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#include <qhash.h>
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#include <qtoolbutton.h>
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#include "core/area.h"
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class QAction;
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class QLabel;
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class QTimer;
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class FormWidgetIface;
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class PageView;
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class VideoWidget;
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namespace Okular {
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class Movie;
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class Page;
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}
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/**
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* @short PageViewItem represents graphically a page into the PageView.
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*
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* It has methods for settings Item's geometry and other visual properties such
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* as the individual zoom factor.
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*/
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class PageViewItem
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{
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public:
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PageViewItem( const Okular::Page * page );
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~PageViewItem();
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const Okular::Page * page() const;
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int pageNumber() const;
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double zoomFactor() const;
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bool isVisible() const;
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QSet<FormWidgetIface*>& formWidgets();
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QHash< Okular::Movie *, VideoWidget * >& videoWidgets();
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/* The page is cropped as follows: */
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const Okular::NormalizedRect & crop() const;
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/* Real geometry into which the cropped page is rendered: */
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const QRect& croppedGeometry() const;
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int croppedWidth() const;
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int croppedHeight() const;
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/* "Uncropped" geometry:
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* If the whole page was rendered into the uncropped geometry then the
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* cropped page would be rendered into the real geometry.
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* (Hence, uncropped always contains cropped, and they are equal only if
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* the page is uncropped.) This is just for convenience in calculations.
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*/
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const QRect& uncroppedGeometry() const;
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int uncroppedWidth() const;
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int uncroppedHeight() const;
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/* Convert absolute geometry coordinates to normalized [0,1] page coordinates: */
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double absToPageX(double absX) const;
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double absToPageY(double absY) const;
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void setWHZC( int w, int h, double zoom, const Okular::NormalizedRect & c );
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void moveTo( int x, int y );
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void setVisible( bool visible );
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void invalidate();
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bool setFormWidgetsVisible( bool visible );
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void reloadFormWidgetsState();
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private:
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const Okular::Page * m_page;
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double m_zoomFactor;
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bool m_visible;
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bool m_formsVisible;
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QRect m_croppedGeometry;
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QRect m_uncroppedGeometry;
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Okular::NormalizedRect m_crop;
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QSet<FormWidgetIface*> m_formWidgets;
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QHash< Okular::Movie *, VideoWidget * > m_videoWidgets;
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};
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/**
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* @short A widget that displays messages in the top-left corner.
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*
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* This is a widget with thin border and rounded corners that displays a given
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* text along as an icon. It's meant to be used for displaying messages to the
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* user by placing this above other widgets.
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*/
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class PageViewMessage : public QWidget
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{
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Q_OBJECT
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public:
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explicit PageViewMessage( QWidget * parent );
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enum Icon { None, Info, Warning, Error, Find, Annotation };
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void display( const QString & message, const QString & details = QString(), Icon icon = Info, int durationMs = 4000 );
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protected:
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bool eventFilter(QObject * obj, QEvent * event ) override;
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void paintEvent( QPaintEvent * e ) override;
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void mousePressEvent( QMouseEvent * e ) override;
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private:
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QRect computeTextRect( const QString & message, int extra_width ) const;
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void computeSizeAndResize();
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QString m_message;
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QString m_details;
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QPixmap m_symbol;
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QTimer * m_timer;
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int m_lineSpacing;
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};
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struct AnnotationToolItem
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{
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AnnotationToolItem()
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: id( -1 ), isText( false )
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{
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}
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int id;
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QString text;
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QPixmap pixmap;
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QString shortcut;
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bool isText;
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};
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class ToolBarButton : public QToolButton
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{
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Q_OBJECT
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public:
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static const int iconSize = 32;
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static const int buttonSize = 40;
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ToolBarButton( QWidget * parent, const AnnotationToolItem &item );
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int buttonID() const { return m_id; }
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bool isText() const { return m_isText; }
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Q_SIGNALS:
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void buttonDoubleClicked( int buttonID );
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protected:
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void mouseDoubleClickEvent( QMouseEvent * event ) override;
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private:
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int m_id;
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bool m_isText;
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};
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/**
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* @short A widget containing exclusive buttons, that slides in from a side.
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*
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* This is a shaped widget that slides in from a side of the 'anchor widget'
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* it's attached to. It can be dragged and docked on {left,top,right,bottom}
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* sides and contains toggable exclusive buttons.
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* When a 'tool' of this 'toolBar' is selected, a signal is emitted.
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*/
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class PageViewToolBar : public QWidget
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{
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Q_OBJECT
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public:
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PageViewToolBar( PageView * parent, QWidget * anchorWidget );
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~PageViewToolBar();
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// animated widget controls
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enum Side { Left = 0, Top = 1, Right = 2, Bottom = 3 };
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void setItems( const QLinkedList<AnnotationToolItem> &items );
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void setSide( Side side );
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void showAndAnimate();
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void hideAndDestroy();
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void selectButton( int id );
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void setToolsEnabled( bool on );
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void setTextToolsEnabled( bool on );
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// query properties
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Q_SIGNALS:
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// the tool 'toolID' has been selected
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void toolSelected( int toolID );
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// orientation has been changed
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void orientationChanged( int side );
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// a tool button of this toolbar has been double clicked
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void buttonDoubleClicked( int buttonID );
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protected:
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// handle widget events { anchor_resize, paint, animation, drag }
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bool eventFilter( QObject * o, QEvent * e ) override;
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void paintEvent( QPaintEvent * ) override;
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void mousePressEvent( QMouseEvent * e ) override;
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void mouseMoveEvent( QMouseEvent * e ) override;
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void mouseReleaseEvent( QMouseEvent * e ) override;
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private:
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// private variables
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friend class ToolBarPrivate;
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class ToolBarPrivate * d;
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private Q_SLOTS:
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void slotAnimate();
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void slotButtonClicked();
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};
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#endif
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