From 809ca307a8b35886451648e3ae7d794a2a20c63e Mon Sep 17 00:00:00 2001 From: Anders Carlsson Date: Wed, 22 Dec 2004 17:20:51 +0000 Subject: Add pixbuf backend. 2004-12-22 Anders Carlsson * Makefile.am: * configure.ac: * pixbuf/Makefile.am: * pixbuf/pixbuf-document.c: (G_DEFINE_TYPE_WITH_CODE), (pixbuf_document_load), (pixbuf_document_get_n_pages), (pixbuf_document_set_page), (pixbuf_document_get_page), (pixbuf_document_set_target), (pixbuf_document_set_scale), (pixbuf_document_set_page_offset), (pixbuf_document_get_page_size), (pixbuf_document_render), (pixbuf_document_begin_find), (pixbuf_document_end_find), (pixbuf_document_finalize), (pixbuf_document_class_init), (pixbuf_document_document_iface_init), (pixbuf_document_init): * pixbuf/pixbuf-document.h: * shell/Makefile.am: * shell/ev-application.c: (ev_application_open): * shell/ev-window.c: (mime_type_supported_by_gdk_pixbuf), (ev_window_open): Add pixbuf backend. --- (limited to 'pixbuf') diff --git a/pixbuf/Makefile.am b/pixbuf/Makefile.am new file mode 100644 index 0000000..68d87dc --- /dev/null +++ b/pixbuf/Makefile.am @@ -0,0 +1,11 @@ +INCLUDES = \ + -I$(top_srcdir) \ + -I$(top_srcdir)/backend \ + $(GTK_CFLAGS) \ + -DDATADIR=\""$(datadir)"\" + +noinst_LTLIBRARIES = libpixbufdocument.la + +libpixbufdocument_la_SOURCES = \ + pixbuf-document.c \ + pixbuf-document.h diff --git a/pixbuf/pixbuf-document.c b/pixbuf/pixbuf-document.c new file mode 100644 index 0000000..c8efd2d --- /dev/null +++ b/pixbuf/pixbuf-document.c @@ -0,0 +1,229 @@ +/* -*- Mode: C; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 8; c-indent-level: 8 -*- */ +/* pixbuf-document.h: Implementation of EvDocument for PIXBUF + * Copyright (C) 2004, Anders Carlsson + * + * 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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. + */ + +#include "pixbuf-document.h" + +struct _PixbufDocumentClass +{ + GObjectClass parent_class; +}; + +struct _PixbufDocument +{ + GObject parent_instance; + + GdkPixbuf *pixbuf; + GdkDrawable *target; + gdouble scale; + + gint x_offset, y_offset; +}; + +typedef struct _PixbufDocumentClass PixbufDocumentClass; + +static void pixbuf_document_document_iface_init (EvDocumentIface *iface); + +G_DEFINE_TYPE_WITH_CODE (PixbufDocument, pixbuf_document, G_TYPE_OBJECT, + { G_IMPLEMENT_INTERFACE (EV_TYPE_DOCUMENT, + pixbuf_document_document_iface_init) }); + +static GObjectClass *parent_class; + +static gboolean +pixbuf_document_load (EvDocument *document, + const char *uri, + GError **error) +{ + PixbufDocument *pixbuf_document = PIXBUF_DOCUMENT (document); + + gchar *filename; + GdkPixbuf *pixbuf; + + /* FIXME: We could actually load uris */ + filename = g_filename_from_uri (uri, NULL, error); + if (!filename) + return FALSE; + + pixbuf = gdk_pixbuf_new_from_file (filename, error); + + if (!pixbuf) + return FALSE; + + pixbuf_document->pixbuf = pixbuf; + + return TRUE; +} + +static int +pixbuf_document_get_n_pages (EvDocument *document) +{ + return 1; +} + +static void +pixbuf_document_set_page (EvDocument *document, + int page) +{ + /* Do nothing */ +} + +static int +pixbuf_document_get_page (EvDocument *document) +{ + return 1; +} + +static void +pixbuf_document_set_target (EvDocument *document, + GdkDrawable *target) +{ + PixbufDocument *pixbuf_document = PIXBUF_DOCUMENT (document); + + pixbuf_document->target = target; +} + +static void +pixbuf_document_set_scale (EvDocument *document, + double scale) +{ + PixbufDocument *pixbuf_document = PIXBUF_DOCUMENT (document); + + pixbuf_document->scale = scale; +} + +static void +pixbuf_document_set_page_offset (EvDocument *document, + int x, + int y) +{ + PixbufDocument *pixbuf_document = PIXBUF_DOCUMENT (document); + + pixbuf_document->x_offset = x; + pixbuf_document->y_offset = y; +} + +static void +pixbuf_document_get_page_size (EvDocument *document, + int *width, + int *height) +{ + PixbufDocument *pixbuf_document = PIXBUF_DOCUMENT (document); + + *width = gdk_pixbuf_get_width (pixbuf_document->pixbuf); + *height = gdk_pixbuf_get_height (pixbuf_document->pixbuf); +} + +static void +pixbuf_document_render (EvDocument *document, + int clip_x, + int clip_y, + int clip_width, + int clip_height) +{ + PixbufDocument *pixbuf_document = PIXBUF_DOCUMENT (document); + + if (pixbuf_document->scale == 1.0) { + gdk_draw_pixbuf (pixbuf_document->target, NULL, pixbuf_document->pixbuf, + clip_x, clip_y, + clip_x, clip_y, + clip_width, clip_height, GDK_RGB_DITHER_NORMAL, + 0, 0); + } + else { + GdkPixbuf *tmp_pixbuf; + + tmp_pixbuf = gdk_pixbuf_new (gdk_pixbuf_get_colorspace (pixbuf_document->pixbuf), + gdk_pixbuf_get_has_alpha (pixbuf_document->pixbuf), + gdk_pixbuf_get_bits_per_sample (pixbuf_document->pixbuf), + clip_width, clip_height); + + gdk_pixbuf_scale (pixbuf_document->pixbuf, tmp_pixbuf, 0, 0, clip_width, clip_height, + clip_x * pixbuf_document->scale, + clip_y * pixbuf_document->scale, + pixbuf_document->scale, pixbuf_document->scale, + GDK_INTERP_BILINEAR); + + gdk_draw_pixbuf (pixbuf_document->target, NULL, tmp_pixbuf, + 0, 0, + clip_x + pixbuf_document->x_offset, + clip_y + pixbuf_document->y_offset, + clip_width, clip_height, GDK_RGB_DITHER_NORMAL, + 0, 0); + + g_object_unref (tmp_pixbuf); + } +} + +static void +pixbuf_document_begin_find (EvDocument *document, + const char *search_string, + gboolean case_sensitive) +{ + +} + +static void +pixbuf_document_end_find (EvDocument *document) +{ +} + +static void +pixbuf_document_finalize (GObject *object) +{ + PixbufDocument *pixbuf_document = PIXBUF_DOCUMENT (object); + + g_object_unref (pixbuf_document->pixbuf); + + G_OBJECT_CLASS (parent_class)->finalize (object); +} + +static void +pixbuf_document_class_init (PixbufDocumentClass *klass) +{ + GObjectClass *gobject_class = G_OBJECT_CLASS (klass); + + parent_class = g_type_class_peek_parent (klass); + + gobject_class->finalize = pixbuf_document_finalize; +} + +static void +pixbuf_document_document_iface_init (EvDocumentIface *iface) +{ + iface->load = pixbuf_document_load; + iface->get_n_pages = pixbuf_document_get_n_pages; + iface->set_page = pixbuf_document_set_page; + iface->get_page = pixbuf_document_get_page; + iface->set_scale = pixbuf_document_set_scale; + iface->set_target = pixbuf_document_set_target; + iface->set_page_offset = pixbuf_document_set_page_offset; + iface->get_page_size = pixbuf_document_get_page_size; + iface->render = pixbuf_document_render; + iface->begin_find = pixbuf_document_begin_find; + iface->end_find = pixbuf_document_end_find; +} + +static void +pixbuf_document_init (PixbufDocument *pixbuf_document) +{ + pixbuf_document->scale = 1.0; + + pixbuf_document->x_offset = 10; + pixbuf_document->y_offset = 10; +} diff --git a/pixbuf/pixbuf-document.h b/pixbuf/pixbuf-document.h new file mode 100644 index 0000000..bddf94a --- /dev/null +++ b/pixbuf/pixbuf-document.h @@ -0,0 +1,38 @@ +/* pdfdocument.h: Implementation of EvDocument for pixbufs + * Copyright (C) 2004, Anders Carlsson + * + * 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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. + */ + +#ifndef __PIXBUF_DOCUMENT_H__ +#define __PIXBUF_DOCUMENT_H__ + +#include "ev-document.h" + +G_BEGIN_DECLS + +#define PIXBUF_TYPE_DOCUMENT (pixbuf_document_get_type ()) +#define PIXBUF_DOCUMENT(obj) (G_TYPE_CHECK_INSTANCE_CAST ((obj), PIXBUF_TYPE_DOCUMENT, PixbufDocument)) +#define PIXBUF_IS_DOCUMENT(obj) (G_TYPE_CHECK_INSTANCE_TYPE ((obj), PIXBUF_TYPE_DOCUMENT)) + +typedef struct _PixbufDocument PixbufDocument; + +PixbufDocument *pixbuf_document_new (void); + +GType pixbuf_document_get_type (void) G_GNUC_CONST; + +G_END_DECLS + +#endif /* __PIXBUF_DOCUMENT_H__ */ -- cgit v0.9.1