File indexing completed on 2024-04-28 15:51:51

 /*
     SPDX-FileCopyrightText: 2004-2005 Enrico Ros <eros.kde@email.it>
 
     Work sponsored by the LiMux project of the city of Munich:
     SPDX-FileCopyrightText: 2017 Klarälvdalens Datakonsult AB a KDAB Group company <info@kdab.com>
 
     SPDX-License-Identifier: GPL-2.0-or-later
 */
 
 #ifndef _PAGEVIEW_UTILS_H_
 #define _PAGEVIEW_UTILS_H_
 
 #include <QHash>
 #include <QIcon>
 #include <QRect>
 #include <qwidget.h>
 
 #include "core/area.h"
 
 class QTimer;
 class FormWidgetIface;
 class PageView;
 class VideoWidget;
 
 namespace Okular
 {
 class Movie;
 class Page;
 }
 
 /**
  * @short PageViewItem represents graphically a page into the PageView.
  *
  * It has methods for settings Item's geometry and other visual properties such
  * as the individual zoom factor.
  */
 class PageViewItem
 {
 public:
     explicit PageViewItem(const Okular::Page *page);
     ~PageViewItem();
 
     PageViewItem(const PageViewItem &) = delete;
     PageViewItem &operator=(const PageViewItem &) = delete;
 
     const Okular::Page *page() const;
     int pageNumber() const;
     double zoomFactor() const;
     bool isVisible() const;
     QSet<FormWidgetIface *> &formWidgets();
     QHash<Okular::Movie *, VideoWidget *> &videoWidgets();
 
     /* The page is cropped as follows: */
     const Okular::NormalizedRect &crop() const;
 
     /* Real geometry into which the cropped page is rendered: */
     const QRect &croppedGeometry() const;
     int croppedWidth() const;
     int croppedHeight() const;
 
     /* "Uncropped" geometry:
      * If the whole page was rendered into the uncropped geometry then the
      * cropped page would be rendered into the real geometry.
      * (Hence, uncropped always contains cropped, and they are equal only if
      * the page is uncropped.) This is just for convenience in calculations.
      */
     const QRect &uncroppedGeometry() const;
     int uncroppedWidth() const;
     int uncroppedHeight() const;
 
     /* Convert absolute geometry coordinates to normalized [0,1] page coordinates: */
     double absToPageX(double absX) const;
     double absToPageY(double absY) const;
 
     void setWHZC(int w, int h, double zoom, const Okular::NormalizedRect &c);
     void moveTo(int x, int y);
     void setVisible(bool visible);
     void invalidate();
     bool setFormWidgetsVisible(bool visible);
     void reloadFormWidgetsState();
 
 private:
     const Okular::Page *m_page;
     double m_zoomFactor;
     bool m_visible;
     bool m_formsVisible;
     QRect m_croppedGeometry;
     QRect m_uncroppedGeometry;
     Okular::NormalizedRect m_crop;
     QSet<FormWidgetIface *> m_formWidgets;
     QHash<Okular::Movie *, VideoWidget *> m_videoWidgets;
 };
 
 /**
  * @short A widget that displays messages in the top-left corner.
  *
  * This is a widget with thin border and rounded corners that displays a given
  * text along as an icon. It's meant to be used for displaying messages to the
  * user by placing this above other widgets.
  */
 class PageViewMessage : public QWidget
 {
     Q_OBJECT
 
 public:
     explicit PageViewMessage(QWidget *parent);
 
     enum Icon { None, Info, Warning, Error, Find, Annotation };
     void display(const QString &message, const QString &details = QString(), Icon icon = Info, int durationMs = 4000);
 
 protected:
     bool eventFilter(QObject *obj, QEvent *event) override;
     void paintEvent(QPaintEvent *e) override;
     void mousePressEvent(QMouseEvent *e) override;
 
 private:
     QRect computeTextRect(const QString &message, int extra_width) const;
     void computeSizeAndResize();
     QString m_message;
     QString m_details;
     QIcon m_symbol;
     QTimer *m_timer;
     int m_lineSpacing;
 };
 
 #endif