1 files changed, 149 insertions, 0 deletions
diff --git a/kpdf/core/page.h b/kpdf/core/page.h
new file mode 100644
index 00000000..ebd6e522
--- /dev/null
+++ b/kpdf/core/page.h
@@ -0,0 +1,149 @@
+/***************************************************************************
+ *   Copyright (C) 2004 by Enrico Ros <eros.kde@email.it>                  *
+ *                                                                         *
+ *   This program is free software; you can redistribute it and/or modify  *
+ *   it under the terms of the GNU General Public License as published by  *
+ *   the Free Software Foundation; either version 2 of the License, or     *
+ *   (at your option) any later version.                                   *
+ ***************************************************************************/
+
+#ifndef _KPDF_PAGE_H_
+#define _KPDF_PAGE_H_
+
+#include <qmap.h>
+#include <qvaluelist.h>
+
+class QPixmap;
+class QRect;
+class TextPage;
+class KPDFPageTransition;
+class HighlightRect;
+class Annotation;
+
+/**
+ * @short A rect in normalized [0,1] coordinates.
+ */
+class NormalizedRect
+{
+    public:
+        double left, top, right, bottom;
+
+        NormalizedRect();
+        NormalizedRect( double l, double t, double r, double b );
+        NormalizedRect( const QRect & r, double xScale, double yScale );
+
+        bool contains( double x, double y ) const;
+        bool intersects( const NormalizedRect & normRect ) const;
+        bool intersects( double l, double t, double r, double b ) const;
+
+        QRect geometry( int xScale, int yScale ) const;
+};
+
+/**
+ * @short NormalizedRect that contains a reference to an object.
+ *
+ * These rects contains a pointer to a kpdf object (such as a link or something
+ * like that). The pointer is read and stored as 'void pointer' so cast is
+ * performed by accessors based on the value returned by objectType(). Objects
+ * are reparented to this class.
+ *
+ * Type / Class correspondency tab:
+ *  - Link      : class KPDFLink  : description of a link
+ *  - Image     : class KPDFImage : description of an image (n/a)
+ */
+class ObjectRect : public NormalizedRect
+{
+    public:
+        // definition of the types of storable objects
+        enum ObjectType { Link, Image };
+
+        // default constructor: initialize all parameters
+        ObjectRect( double l, double t, double r, double b, ObjectType typ, void * obj );
+        ~ObjectRect();
+
+        // query type and get a const pointer to the stored object
+        inline ObjectType objectType() const { return m_objectType; }
+        inline const void * pointer() const { return m_pointer; }
+
+    private:
+        ObjectType m_objectType;
+        void * m_pointer;
+};
+
+/**
+ * @short Collector for all the data belonging to a page.
+ *
+ * The KPDFPage class contains pixmaps (referenced using observers id as key),
+ * a search page (a class used internally for retrieving text), rect classes
+ * (that describe links or other active areas in the current page) and more.
+ *
+ * All coordinates are normalized to the page, so {x,y} are valid in [0,1]
+ * range as long as NormalizedRect components.
+ *
+ * Note: The class takes ownership of all objects.
+ */
+class KPDFPage
+{
+    public:
+        KPDFPage( uint number, float width, float height, int rotation );
+        ~KPDFPage();
+
+        // query properties (const read-only methods)
+        inline int number() const { return m_number; }
+        inline int rotation() const { return m_rotation; }
+        inline float width() const { return m_width; }
+        inline float height() const { return m_height; }
+        inline float ratio() const { return m_height / m_width; }
+        bool hasPixmap( int p_id, int width = -1, int height = -1 ) const;
+        bool hasSearchPage() const;
+        bool hasBookmark() const;
+        bool hasObjectRect( double x, double y ) const;
+        bool hasHighlights( int s_id = -1 ) const;
+        //bool hasAnnotation( double x, double y ) const;
+        bool hasTransition() const;
+
+        NormalizedRect * findText( const QString & text, bool keepCase, NormalizedRect * last = 0 ) const;
+        const QString getText( const NormalizedRect & rect ) const;
+        const ObjectRect * hasObject( ObjectRect::ObjectType type, double x, double y ) const;
+        //const Annotation * getAnnotation( double x, double y ) const;
+        const KPDFPageTransition * getTransition() const;
+
+        // operations: set/delete contents (by KPDFDocument)
+        void setPixmap( int p_id, QPixmap * pixmap );
+        void setSearchPage( TextPage * text );
+        void setBookmark( bool state );
+        void setObjectRects( const QValueList< ObjectRect * > rects );
+        void setHighlight( int s_id, NormalizedRect * &r, const QColor & color );
+        //void setAnnotation( Annotation * annotation );
+        void setTransition( KPDFPageTransition * transition );
+        void deletePixmap( int p_id );
+        void deletePixmapsAndRects();
+        void deleteHighlights( int s_id = -1 );
+
+    private:
+        friend class PagePainter;
+        int m_number, m_rotation;
+        float m_width, m_height;
+        bool m_bookmarked;
+
+        QMap< int, QPixmap * > m_pixmaps;
+        TextPage * m_text;
+        QValueList< ObjectRect * > m_rects;
+        QValueList< HighlightRect * > m_highlights;
+        //QValueList< Annotation * > m_annotations;
+        KPDFPageTransition * m_transition;
+};
+
+
+/**
+ * Internal Storage: normalized colored highlight owned by id
+ */
+struct HighlightRect : public NormalizedRect
+{
+    // searchID of the highlight owner
+    int s_id;
+    // color of the highlight
+    QColor color;
+};
+
+#endif