From f7c3085a0e3c5c813cf9ae40b55fd7390e9373e2 Mon Sep 17 00:00:00 2001 From: Carlos Garcia Campos Date: Wed, 27 Dec 2006 17:33:22 +0000 Subject: Add page transition support in presentation mode. At the moment only page 2006-12-27 Carlos Garcia Campos * configure.ac: * backend/Makefile.am: * backend/ev-document-transition.[ch]: * pdf/ev-poppler.cc: (pdf_document_get_page_duration), (pdf_document_page_transition_iface_init): * shell/ev-view-private.h: * shell/ev-view.c: (ev_view_destroy), (page_changed_cb), (ev_view_set_presentation), (transition_next_page), (ev_view_presentation_transition_stop), (ev_view_presentation_transition_start), (ev_view_next_page): Add page transition support in presentation mode. At the moment only page duration is supported, but not transition effects. Fixes bug #309815. --- (limited to 'backend') diff --git a/backend/Makefile.am b/backend/Makefile.am index 2de2f5f..54dbd2c 100644 --- a/backend/Makefile.am +++ b/backend/Makefile.am @@ -43,6 +43,8 @@ libevbackend_la_SOURCES= \ ev-document-find.c \ ev-document-find.h \ ev-document-info.h \ + ev-document-transition.h \ + ev-document-transition.c \ ev-file-exporter.c \ ev-file-exporter.h \ ev-render-context.h \ diff --git a/backend/ev-document-transition.c b/backend/ev-document-transition.c new file mode 100644 index 0000000..274da7c --- /dev/null +++ b/backend/ev-document-transition.c @@ -0,0 +1,55 @@ +/* ev-document-transition.c + * this file is part of evince, a gnome document viewer + * + * Copyright (C) 2006 Carlos Garcia Campos + * + * Evince 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. + * + * Evince 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307, USA. + */ + +#include "ev-document-transition.h" + +GType +ev_document_transition_get_type (void) +{ + static GType type = 0; + + if (G_UNLIKELY (type == 0)) { + const GTypeInfo our_info = { + sizeof (EvDocumentTransitionIface), + NULL, + NULL, + }; + + type = g_type_register_static (G_TYPE_INTERFACE, + "EvDocumentTransition", + &our_info, (GTypeFlags)0); + } + + return type; +} + +gdouble +ev_document_transition_get_page_duration (EvDocumentTransition *document_trans, + gint page) +{ + EvDocumentTransitionIface *iface = EV_DOCUMENT_TRANSITION_GET_IFACE (document_trans); + + if (iface->get_page_duration) + return iface->get_page_duration (document_trans, page); + + return -1; +} + + diff --git a/backend/ev-document-transition.h b/backend/ev-document-transition.h new file mode 100644 index 0000000..3ca55ab --- /dev/null +++ b/backend/ev-document-transition.h @@ -0,0 +1,56 @@ +/* ev-document-transition.h + * this file is part of evince, a gnome document viewer + * + * Copyright (C) 2006 Carlos Garcia Campos + * + * Evince 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. + * + * Evince 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307, USA. + */ + +#ifndef EV_DOCUMENT_TRANSITION_H +#define EV_DOCUMENT_TRANSITION_H + +#include + +#include "ev-document.h" + +G_BEGIN_DECLS + +#define EV_TYPE_DOCUMENT_TRANSITION (ev_document_transition_get_type ()) +#define EV_DOCUMENT_TRANSITION(o) (G_TYPE_CHECK_INSTANCE_CAST ((o), EV_TYPE_DOCUMENT_TRANSITION, EvDocumentTransition)) +#define EV_DOCUMENT_TRANSITION_IFACE(k) (G_TYPE_CHECK_CLASS_CAST((k), EV_TYPE_DOCUMENT_TRANSITION, EvDocumentTransitionIface)) +#define EV_IS_DOCUMENT_TRANSITION(o) (G_TYPE_CHECK_INSTANCE_TYPE ((o), EV_TYPE_DOCUMENT_TRANSITION)) +#define EV_IS_DOCUMENT_TRANSITION_IFACE(k) (G_TYPE_CHECK_CLASS_TYPE ((k), EV_TYPE_DOCUMENT_TRANSITION)) +#define EV_DOCUMENT_TRANSITION_GET_IFACE(inst) (G_TYPE_INSTANCE_GET_INTERFACE ((inst), EV_TYPE_DOCUMENT_TRANSITION, EvDocumentTransitionIface)) + +typedef struct _EvDocumentTransition EvDocumentTransition; +typedef struct _EvDocumentTransitionIface EvDocumentTransitionIface; + +struct _EvDocumentTransitionIface +{ + GTypeInterface base_iface; + + /* Methods */ + gdouble (* get_page_duration) (EvDocumentTransition *document_trans, + gint page); + /* TODO: Support page transition effects (page 562 PDF Reference 1.6) */ +}; + +GType ev_document_transition_get_type (void) G_GNUC_CONST; +gdouble ev_document_transition_get_page_duration (EvDocumentTransition *document_trans, + gint page); + +G_END_DECLS + +#endif /* EV_DOCUMENT_TRANSITION_H */ -- cgit v0.9.1