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+/* PageTransition.h
+ * Copyright (C) 2005, Net Integration Technologies, Inc.
+ * Copyright (C) 2005, Brad Hards <bradh@frogmouth.net>
+ *
+ * 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, or (at your option)
+ * any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, MA 02110-1301, USA.
+ */
+
+#ifndef __PAGETRANSITION_X_H__
+#define __PAGETRANSITION_X_H__
+
+namespace Poppler {
+
+class PageTransitionParams;
+class PageTransitionData;
+
+/**
+ \brief Describes how a PDF file viewer shall perform the transition
+ from one page to another
+
+ In PDF files there is a way to specify if the viewer shall use
+ certain effects to perform the transition from one page to
+ another. This feature can be used, e.g., in a PDF-based beamer
+ presentation.
+
+ This utility class represents the transition effect, and can be
+ used to extract the information from a PDF object.
+*/
+
+
+class PageTransition {
+ public:
+
+ /** \brief transition effect that shall be used
+ */
+ // if changed remember to keep in sync with PageTransition.h enum
+ enum Type {
+ Replace = 0,
+ Split,
+ Blinds,
+ Box,
+ Wipe,
+ Dissolve,
+ Glitter,
+ Fly,
+ Push,
+ Cover,
+ Uncover,
+ Fade
+ };
+
+ /** \brief alignment of the transition effect that shall be used
+ */
+ // if changed remember to keep in sync with PageTransition.h enum
+ enum Alignment {
+ Horizontal = 0,
+ Vertical
+ };
+
+ /** \brief direction of the transition effect that shall be used
+ */
+ // if changed remember to keep in sync with PageTransition.h enum
+ enum Direction {
+ Inward = 0,
+ Outward
+ };
+
+ /** \brief Construct a new PageTransition object from a page dictionary.
+
+ Users of the library will rarely need to construct a
+ PageTransition object themselves. Instead, the method
+ Poppler::Page::transition() can be used to find out if a certain
+ transition effect is specified.
+
+ @warning In case or error, this method will print an error message to stderr,
+ and construct a default object.
+
+ @param params an object whose dictionary will be read and
+ parsed. This must be a valid object, whose dictionaries are
+ accessed by the constructor. The object is only accessed by this
+ constructor, and may be deleted after the constructor returns.
+ */
+ PageTransition(const PageTransitionParams &params);
+
+ /** \brief copy constructor */
+ PageTransition(const PageTransition &pt);
+
+ /**
+ Destructor
+ */
+ ~PageTransition();
+
+ /**
+ \brief Get type of the transition.
+ */
+ Type type() const;
+
+ /**
+ \brief Get duration of the transition in seconds.
+ */
+ int duration() const;
+
+ /**
+ \brief Get dimension in which the transition effect occurs.
+ */
+ Alignment alignment() const;
+
+ /**
+ \brief Get direction of motion of the transition effect.
+ */
+ Direction direction() const;
+
+ /**
+ \brief Get direction in which the transition effect moves.
+ */
+ int angle() const;
+
+ /**
+ \brief Get starting or ending scale.
+ */
+ double scale() const;
+
+ /**
+ \brief Returns true if the area to be flown is rectangular and
+ opaque.
+ */
+ bool isRectangular() const;
+
+ private:
+ PageTransitionData *data;
+};
+
+}
+
+#endif