From 809ca307a8b35886451648e3ae7d794a2a20c63e Mon Sep 17 00:00:00 2001 From: Anders Carlsson Date: Wed, 22 Dec 2004 17:20:51 +0000 Subject: [PATCH] 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. --- Makefile.am | 2 +- configure.ac | 1 + pixbuf/Makefile.am | 11 ++ pixbuf/pixbuf-document.c | 229 +++++++++++++++++++++++++++++++++++++++ pixbuf/pixbuf-document.h | 38 +++++++ shell/Makefile.am | 2 + shell/ev-application.c | 10 +- shell/ev-window.c | 43 +++++++- 8 files changed, 331 insertions(+), 5 deletions(-) create mode 100644 pixbuf/Makefile.am create mode 100644 pixbuf/pixbuf-document.c create mode 100644 pixbuf/pixbuf-document.h diff --git a/Makefile.am b/Makefile.am index bc064af2..631f74b1 100644 --- a/Makefile.am +++ b/Makefile.am @@ -1,4 +1,4 @@ -SUBDIRS = cut-n-paste data backend po pdf dvi ps shell +SUBDIRS = cut-n-paste data backend po pdf dvi ps pixbuf shell intltool_extra = intltool-extract.in intltool-merge.in intltool-update.in diff --git a/configure.ac b/configure.ac index bce7729f..2e016539 100644 --- a/configure.ac +++ b/configure.ac @@ -370,6 +370,7 @@ pdf/goo/Makefile pdf/fofi/Makefile pdf/splash/Makefile pdf/xpdf/Makefile +pixbuf/Makefile ps/Makefile po/Makefile.in backend/Makefile diff --git a/pixbuf/Makefile.am b/pixbuf/Makefile.am new file mode 100644 index 00000000..68d87dcf --- /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 00000000..c8efd2d9 --- /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 00000000..bddf94a8 --- /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__ */ diff --git a/shell/Makefile.am b/shell/Makefile.am index d51abd14..a36511ae 100644 --- a/shell/Makefile.am +++ b/shell/Makefile.am @@ -5,6 +5,7 @@ INCLUDES= \ -I$(top_srcdir)/lib \ -I$(top_srcdir)/backend \ -I$(top_srcdir)/pdf/xpdf \ + -I$(top_srcdir)/pixbuf \ -I$(top_srcdir)/ps \ -DGNOMELOCALEDIR=\"$(datadir)/locale\" \ -DGNOMEICONDIR=\""$(datadir)/pixmaps"\" \ @@ -41,6 +42,7 @@ evince_LDADD= \ $(SHELL_LIBS) \ $(top_builddir)/backend/libevbackend.la \ $(top_builddir)/pdf/xpdf/libpdfdocument.la \ + $(top_builddir)/pixbuf/libpixbufdocument.la \ $(top_builddir)/ps/libgtkgs.la \ $(NULL) diff --git a/shell/ev-application.c b/shell/ev-application.c index 541b87ec..4f006cc5 100644 --- a/shell/ev-application.c +++ b/shell/ev-application.c @@ -115,8 +115,7 @@ ev_application_open (EvApplication *application, GError *err) { EvWindow *ev_window; GtkWidget *chooser; - GtkFileFilter *both_filter, *pdf_filter, *ps_filter, *all_filter; - + GtkFileFilter *both_filter, *pdf_filter, *ps_filter, *pixbuf_filter, *all_filter; ev_window = ev_application_get_empty_window (application); @@ -145,11 +144,16 @@ ev_application_open (EvApplication *application, GError *err) gtk_file_filter_add_mime_type (pdf_filter, "application/pdf"); gtk_file_chooser_add_filter (GTK_FILE_CHOOSER (chooser), pdf_filter); + pixbuf_filter = gtk_file_filter_new (); + gtk_file_filter_set_name (pixbuf_filter, _("Images")); + gtk_file_filter_add_pixbuf_formats (pixbuf_filter); + gtk_file_chooser_add_filter (GTK_FILE_CHOOSER (chooser), pixbuf_filter); + all_filter = gtk_file_filter_new (); gtk_file_filter_set_name (all_filter, _("All Files")); gtk_file_filter_add_pattern (all_filter, "*"); gtk_file_chooser_add_filter (GTK_FILE_CHOOSER (chooser), all_filter); - + gtk_file_chooser_set_filter (GTK_FILE_CHOOSER (chooser), both_filter); if (gtk_dialog_run (GTK_DIALOG (chooser)) == GTK_RESPONSE_OK) { diff --git a/shell/ev-window.c b/shell/ev-window.c index b23a1a6e..19a0c52b 100644 --- a/shell/ev-window.c +++ b/shell/ev-window.c @@ -36,6 +36,7 @@ #include "eggfindbar.h" #include "pdf-document.h" +#include "pixbuf-document.h" #include "gtkgs.h" #include @@ -205,6 +206,44 @@ unable_to_load (EvWindow *ev_window, gtk_widget_destroy (dialog); } +/* Would be nice to have this in gdk-pixbuf */ +static gboolean +mime_type_supported_by_gdk_pixbuf (const gchar *mime_type) +{ + GSList *formats, *list; + gboolean retval = FALSE; + + formats = gdk_pixbuf_get_formats (); + + list = formats; + while (list) { + GdkPixbufFormat *format = list->data; + int i; + gchar **mime_types; + + if (gdk_pixbuf_format_is_disabled (format)) + continue; + + mime_types = gdk_pixbuf_format_get_mime_types (format); + + for (i = 0; mime_types[i] != NULL; i++) { + if (strcmp (mime_types[i], mime_type) == 0) { + retval = TRUE; + break; + } + } + + if (retval) + break; + + list = list->next; + } + + g_slist_free (formats); + + return retval; +} + void ev_window_open (EvWindow *ev_window, const char *uri) { @@ -217,7 +256,9 @@ ev_window_open (EvWindow *ev_window, const char *uri) document = g_object_new (PDF_TYPE_DOCUMENT, NULL); else if (!strcmp (mime_type, "application/postscript")) document = g_object_new (GTK_GS_TYPE, NULL); - + else if (mime_type_supported_by_gdk_pixbuf (mime_type)) + document = g_object_new (PIXBUF_TYPE_DOCUMENT, NULL); + if (document) { GError *error = NULL; -- 2.43.0