-//========================================================================
-//
-// gpdf.cc
-//
-// Copyright 1996 Derek B. Noonburg
-// Copyright 1999 Miguel de Icaza
-// Copyright 1999 Michael Meeks.
-//
-//========================================================================
-
-
+/*
+ * PDF viewer Bonobo container.
+ *
+ * Author:
+ * Michael Meeks <michael@imaginator.com>
+ *
+ */
#include <stdio.h>
#include <stdlib.h>
#include <stddef.h>
#include <string.h>
+extern "C" {
#define GString G_String
#include <gnome.h>
+#include <libgnorba/gnorba.h>
+#include <gdk/gdkprivate.h>
+#include <gdk/gdkx.h>
+#include <bonobo/gnome-bonobo.h>
#undef GString
+}
+#include <sys/stat.h>
+#include <unistd.h>
#include "gtypes.h"
#include "GString.h"
#include "parseargs.h"
#include "Error.h"
#include "config.h"
-GBool printCommands = gFalse;
-gint gpdf_debug;
poptContext ctx;
+gint gpdf_debug=0;
const struct poptOption gpdf_popt_options [] = {
{ "debug", '\0', POPT_ARG_INT, &gpdf_debug, 0,
{ NULL, '\0', 0, NULL, 0 }
};
+typedef struct _Component Component;
+typedef struct _Container Container;
+/* NB. there is a 1 to 1 Container -> Component mapping, this
+ is due to how much MDI sucks; unutterably */
+struct _Container {
+ GnomeContainer *container;
+ GnomeUIHandler *uih;
+
+ GnomeViewFrame *active_view_frame;
+
+ GtkWidget *app;
+ GtkScrolledWindow *scroll;
+ GtkWidget *view_widget;
+ Component *component;
+};
-//------------------------------------------------------------------------
-// loadFile / displayPage
-//------------------------------------------------------------------------
+struct _Component {
+ Container *container;
-static GBool loadFile(GString *fileName) {
- GString *title;
- PDFDoc *newDoc;
- char s[20];
- char *p;
+ GnomeClientSite *client_site;
+ GnomeViewFrame *view_frame;
+ GnomeObjectClient *server;
+};
- // busy cursor
- if (win)
- win->setBusyCursor(gTrue);
+GList *containers = NULL;
+/*
+ * Static prototypes.
+ */
+extern "C" {
+ static Container *container_new (const char *fname);
+ static void container_destroy (Container *cont);
+ static void container_open_cmd (GtkWidget *widget, Container *container);
+ static void container_close_cmd (GtkWidget *widget, Container *container);
+ static void container_exit_cmd (void);
+ static void container_about_cmd (GtkWidget *widget, Container *container);
+ static Component *container_activate_component (Container *container, char *component_goad_id);
+}
+
+/*
+ * The menus.
+ */
+static GnomeUIInfo container_file_menu [] = {
+ GNOMEUIINFO_MENU_OPEN_ITEM (container_open_cmd, NULL),
+ GNOMEUIINFO_SEPARATOR,
+ GNOMEUIINFO_MENU_CLOSE_ITEM(container_close_cmd, NULL),
+ GNOMEUIINFO_SEPARATOR,
+ GNOMEUIINFO_MENU_EXIT_ITEM (container_exit_cmd, NULL),
+ GNOMEUIINFO_END
+};
- // open PDF file
- newDoc = new PDFDoc(fileName);
- if (!newDoc->isOk()) {
- delete newDoc;
- if (win)
- win->setBusyCursor(gFalse);
- return gFalse;
+static GnomeUIInfo container_help_menu [] = {
+ GNOMEUIINFO_MENU_ABOUT_ITEM(container_about_cmd, NULL),
+ GNOMEUIINFO_END
+};
+
+static GnomeUIInfo container_main_menu [] = {
+ GNOMEUIINFO_MENU_FILE_TREE (container_file_menu),
+ GNOMEUIINFO_MENU_HELP_TREE (container_help_menu),
+ GNOMEUIINFO_END
+};
+
+static GnomeUIInfo container_toolbar [] = {
+ GNOMEUIINFO_ITEM_STOCK (
+ N_("Open"), N_("Opens an existing workbook"),
+ container_open_cmd, GNOME_STOCK_PIXMAP_OPEN),
+
+ GNOMEUIINFO_SEPARATOR,
+ GNOMEUIINFO_END
+};
+
+extern "C" {
+ static gboolean
+ open_pdf (Container *container, const char *name)
+ {
+ GnomeObjectClient *object;
+ GnomeStream *stream;
+ GNOME_PersistStream persist;
+ Component *comp;
+ CORBA_Environment ev;
+
+ g_return_val_if_fail (container != NULL, FALSE);
+ g_return_val_if_fail (container->view_widget == NULL, FALSE);
+
+ comp = container_activate_component (container, "bonobo-object:application-x-pdf");
+ if (!comp || !(object = comp->server)) {
+ gnome_error_dialog (_("Could not launch bonobo object."));
+ return FALSE;
+ }
+
+ CORBA_exception_init (&ev);
+ persist = GNOME_Unknown_query_interface (
+ gnome_object_corba_objref (GNOME_OBJECT (object)),
+ "IDL:GNOME/PersistStream:1.0", &ev);
+
+ if (ev._major != CORBA_NO_EXCEPTION ||
+ persist == CORBA_OBJECT_NIL) {
+ gnome_error_dialog ("Panic: component is well broken.");
+ return FALSE;
+ }
+
+ stream = gnome_stream_fs_open (name, GNOME_Storage_READ);
+
+ if (stream == NULL) {
+ char *err = g_strconcat (_("Could not open "), name, NULL);
+ gnome_error_dialog_parented (err, GTK_WINDOW(container->app));
+ g_free (err);
+ return FALSE;
+ }
+
+ GNOME_PersistStream_load (persist,
+ (GNOME_Stream) gnome_object_corba_objref (GNOME_OBJECT (stream)), &ev);
+
+ GNOME_Unknown_unref (persist, &ev);
+ CORBA_Object_release (persist, &ev);
+ CORBA_exception_free (&ev);
+
+/* gnome_view_frame_view_do_verb (comp->view_frame, "ZoomFit"); */
+ return TRUE;
}
+
+ static void
+ set_ok (GtkWidget *widget, gboolean *dialog_result)
+ {
+ *dialog_result = TRUE;
+ gtk_main_quit ();
+ }
+
+ static guint
+ file_dialog_delete_event (GtkWidget *widget, GdkEventAny *event)
+ {
+ gtk_main_quit ();
+ return TRUE;
+ }
+
+ static void
+ container_open_cmd (GtkWidget *widget, Container *container)
+ {
+ GtkFileSelection *fsel;
+ gboolean accepted = FALSE;
+
+ fsel = GTK_FILE_SELECTION (gtk_file_selection_new (_("Load file")));
+ gtk_window_set_modal (GTK_WINDOW (fsel), TRUE);
+
+ gtk_window_set_transient_for (GTK_WINDOW (fsel),
+ GTK_WINDOW (container->app));
+
+ /* Connect the signals for Ok and Cancel */
+ gtk_signal_connect (GTK_OBJECT (fsel->ok_button), "clicked",
+ GTK_SIGNAL_FUNC (set_ok), &accepted);
+ gtk_signal_connect (GTK_OBJECT (fsel->cancel_button), "clicked",
+ GTK_SIGNAL_FUNC (gtk_main_quit), NULL);
+ gtk_window_set_position (GTK_WINDOW (fsel), GTK_WIN_POS_MOUSE);
+
+ /*
+ * Make sure that we quit the main loop if the window is destroyed
+ */
+ gtk_signal_connect (GTK_OBJECT (fsel), "delete_event",
+ GTK_SIGNAL_FUNC (file_dialog_delete_event), NULL);
+
+ /* Run the dialog */
+ gtk_widget_show (GTK_WIDGET (fsel));
+ gtk_grab_add (GTK_WIDGET (fsel));
+ gtk_main ();
+
+ if (accepted) {
+ char *name = gtk_file_selection_get_filename (fsel);
+
+ if (name [strlen (name)-1] != '/') {
+ char *fname = g_strdup (name);
+ if (container->view_widget) /* any sort of MDI sucks :-] */
+ container = container_new (fname);
+ else {
+ if (!open_pdf (container, fname))
+ container_destroy (container);
+ }
+ g_free (fname);
+ } else {
+ GtkWidget *dialog;
+ dialog = gnome_message_box_new ("Can't open a directory",
+ GNOME_MESSAGE_BOX_ERROR,
+ GNOME_STOCK_BUTTON_OK, NULL);
+ gnome_dialog_set_parent (GNOME_DIALOG (dialog),
+ GTK_WINDOW (container->app));
+ gnome_dialog_run (GNOME_DIALOG (dialog));
+ }
+ }
+
+ gtk_widget_destroy (GTK_WIDGET (fsel));
+ }
+
+ static void
+ component_destroy (Component *component)
+ {
+ CORBA_Environment ev;
+ g_return_if_fail (component != NULL);
+
+ CORBA_exception_init (&ev);
+
+ if (component->server)
+ GNOME_Unknown_unref (
+ gnome_object_corba_objref (GNOME_OBJECT (component->server)), &ev);
+ component->server = NULL;
+
+ CORBA_exception_free (&ev);
+ }
+
+ static void
+ container_destroy (Container *cont)
+ {
+ containers = g_list_remove (containers, cont);
+ if (cont->app)
+ gtk_widget_destroy (cont->app);
+
+ if (cont->component)
+ component_destroy (cont->component);
+ cont->component = NULL;
+
+ cont->app = NULL;
+
+ g_free (cont);
+ if (!containers)
+ gtk_main_quit ();
+ }
+
+ static void
+ container_close_cmd (GtkWidget *widget, Container *cont)
+ {
+ container_destroy (cont);
+ }
+
+ static void
+ container_exit_cmd (void)
+ {
+ while (containers)
+ container_destroy ((Container *)containers->data);
+ }
+
+
+static void
+container_about_cmd (GtkWidget *widget, Container *container)
+{
+ GtkWidget *about;
+ int i;
+
+ const gchar *authors[] = {
+ N_("Derek B. Noonburg, main author"),
+ N_("Michael Meeks, GNOME port maintainer."),
+ N_("Miguel de Icaza."),
+ N_("Nat Friedman."),
+ NULL
+ };
+
+#ifdef ENABLE_NLS
+ for (i = 0; authors[i] != NULL; i++)
+ authors [i] = _(authors [i]);
+#endif
+
+ about = gnome_about_new (_("GPDF"), VERSION,
+ _("(C) 1996-1999 Derek B. Noonburg."),
+ authors, NULL, NULL);
+
+ gnome_dialog_set_parent (GNOME_DIALOG (about), GTK_WINDOW (container->app));
+ gnome_dialog_set_close (GNOME_DIALOG (about), TRUE);
+ gtk_widget_show (about);
+}
+}
+
+static void
+container_set_view (Container *container, Component *component)
+{
+ GnomeViewFrame *view_frame;
+ GtkWidget *view_widget;
+
+ /*
+ * Create the remote view and the local ViewFrame.
+ */
+ view_frame = gnome_client_site_new_view (component->client_site);
+ component->view_frame = view_frame;
+
+ /*
+ * Set the GnomeUIHandler for this ViewFrame. That way, the
+ * embedded component can get access to our UIHandler server
+ * so that it can merge menu and toolbar items when it gets
+ * activated.
+ */
+ gnome_view_frame_set_ui_handler (view_frame, container->uih);
+
+ /*
+ * Embed the view frame into the application.
+ */
+ view_widget = gnome_view_frame_get_wrapper (view_frame);
+ container->view_widget = view_widget;
+ container->component = component;
+
+ /*
+ * Show the component.
+ */
+ gtk_scrolled_window_add_with_viewport (container->scroll, view_widget);
+
+ /*
+ * Activate it ( get it to merge menus etc. )
+ */
+ gnome_view_frame_view_activate (view_frame);
+
+ gtk_widget_show_all (GTK_WIDGET (container->scroll));
+}
+
+static GnomeObjectClient *
+container_launch_component (GnomeClientSite *client_site,
+ GnomeContainer *container,
+ char *component_goad_id)
+{
+ GnomeObjectClient *object_server;
+
+ /*
+ * Launch the component.
+ */
+ object_server = gnome_object_activate_with_goad_id (
+ NULL, component_goad_id, GOAD_ACTIVATE_SHLIB, NULL);
- // replace old document
- if (doc)
- delete doc;
- doc = newDoc;
-
- // nothing displayed yet
- page = -99;
-
- // init PostScript output params
- if (psFileName)
- delete psFileName;
- if (defPSFileName) {
- psFileName = defPSFileName->copy();
- } else {
- p = fileName->getCString() + fileName->getLength() - 4;
- if (!strcmp(p, ".pdf") || !strcmp(p, ".PDF"))
- psFileName = new GString(fileName->getCString(),
- fileName->getLength() - 4);
- else
- psFileName = fileName->copy();
- psFileName->append(".ps");
+ if (object_server == NULL)
+ return NULL;
+
+ /*
+ * Bind it to the local ClientSite. Every embedded component
+ * has a local GnomeClientSite object which serves as a
+ * container-side point of contact for the embeddable. The
+ * container talks to the embeddable through its ClientSite
+ */
+ if (!gnome_client_site_bind_embeddable (client_site, object_server)) {
+ gnome_object_unref (GNOME_OBJECT (object_server));
+ return NULL;
+ }
+
+ /*
+ * The GnomeContainer object maintains a list of the
+ * ClientSites which it manages. Here we add the new
+ * ClientSite to that list.
+ */
+ gnome_container_add (container, GNOME_OBJECT (client_site));
+
+ return object_server;
+}
+
+extern "C" {
+ static Component *
+ container_activate_component (Container *container, char *component_goad_id)
+ {
+ Component *component;
+ GnomeClientSite *client_site;
+ GnomeObjectClient *server;
+
+ /*
+ * The ClientSite is the container-side point of contact for
+ * the Embeddable. So there is a one-to-one correspondence
+ * between GnomeClientSites and GnomeEmbeddables. */
+ client_site = gnome_client_site_new (container->container);
+
+ /*
+ * A GnomeObjectClient is a simple wrapper for a remote
+ * GnomeObject (a server supporting GNOME::Unknown).
+ */
+ server = container_launch_component (client_site, container->container,
+ component_goad_id);
+ if (server == NULL) {
+ char *error_msg;
+
+ error_msg = g_strdup_printf (_("Could not launch Embeddable %s!"),
+ component_goad_id);
+ gnome_warning_dialog (error_msg);
+ g_free (error_msg);
+
+ return NULL;
+ }
+
+ /*
+ * Create the internal data structure which we will use to
+ * keep track of this component.
+ */
+ component = g_new0 (Component, 1);
+ component->container = container;
+ component->client_site = client_site;
+ component->server = server;
+
+ container_set_view (container, component);
+
+ return component;
}
- psFirstPage = 1;
- psLastPage = doc->getNumPages();
-
- // set up title, number-of-pages display; back to normal cursor
- if (win) {
- title = new GString("xpdf: ");
- title->append(fileName);
- win->setTitle(title);
- sprintf(s, "of %d", doc->getNumPages());
- numPagesLabel->setText(s);
- win->setBusyCursor(gFalse);
+
+ static void
+ filenames_dropped (GtkWidget * widget,
+ GdkDragContext *context,
+ gint x,
+ gint y,
+ GtkSelectionData *selection_data,
+ guint info,
+ guint time,
+ Container *container)
+ {
+ GList *names, *tmp_list;
+
+ names = gnome_uri_list_extract_filenames ((char *)selection_data->data);
+ tmp_list = names;
+
+ while (tmp_list) {
+ const char *fname = (const char *)tmp_list->data;
+
+ if (fname) {
+ if (container->view_widget)
+ container = container_new (fname);
+ else
+ open_pdf (container, fname);
+ }
+
+ tmp_list = g_list_next (tmp_list);
+ }
}
+}
- // done
- return gTrue;
+static void
+container_create_menus (Container *container)
+{
+ GnomeUIHandlerMenuItem *menu_list;
+
+ gnome_ui_handler_create_menubar (container->uih);
+
+ /*
+ * Create the basic menus out of UIInfo structures.
+ */
+ menu_list = gnome_ui_handler_menu_parse_uiinfo_list_with_data (container_main_menu, container);
+ gnome_ui_handler_menu_add_list (container->uih, "/", menu_list);
+ gnome_ui_handler_menu_free_list (menu_list);
+}
+
+static void
+container_create_toolbar (Container *container)
+{
+ GnomeUIHandlerToolbarItem *toolbar;
+
+ gnome_ui_handler_create_toolbar (container->uih, "pdf");
+ toolbar = gnome_ui_handler_toolbar_parse_uiinfo_list_with_data (container_toolbar, container);
+ gnome_ui_handler_toolbar_add_list (container->uih, "/", toolbar);
+ gnome_ui_handler_toolbar_free_list (toolbar);
}
-static void displayPage(int page1, int zoom1, int rotate1) {
- char s[20];
+static Container *
+container_new (const char *fname)
+{
+ Container *container;
+ static GtkTargetEntry drag_types[] =
+ {
+ { "text/uri-list", 0, 0 },
+ };
+ static gint n_drag_types = sizeof (drag_types) / sizeof (drag_types [0]);
+
+ container = g_new0 (Container, 1);
+
+ container->app = gnome_app_new ("pdf-viewer",
+ "GNOME PDF viewer");
+
+ gtk_drag_dest_set (container->app,
+ GTK_DEST_DEFAULT_ALL,
+ drag_types, n_drag_types,
+ GDK_ACTION_COPY);
+
+ gtk_signal_connect (GTK_OBJECT(container->app),
+ "drag_data_received",
+ GTK_SIGNAL_FUNC(filenames_dropped), (gpointer)container);
+
+ gtk_window_set_default_size (GTK_WINDOW (container->app), 600, 600);
+ gtk_window_set_policy (GTK_WINDOW (container->app), TRUE, TRUE, FALSE);
- // check for document
- if (!doc)
- return;
+ container->container = gnome_container_new ();
+ container->view_widget = NULL;
+ container->scroll = GTK_SCROLLED_WINDOW (gtk_scrolled_window_new (NULL, NULL));
+ gtk_scrolled_window_set_policy (container->scroll, GTK_POLICY_AUTOMATIC,
+ GTK_POLICY_AUTOMATIC);
+ gnome_app_set_contents (GNOME_APP (container->app), GTK_WIDGET (container->scroll));
- // busy cursor
- if (win)
- win->setBusyCursor(gTrue);
+ /*
+ * Create the GnomeUIHandler object which will be used to
+ * create the container's menus and toolbars. The UIHandler
+ * also creates a CORBA server which embedded components use
+ * to do menu/toolbar merging.
+ */
+ container->uih = gnome_ui_handler_new ();
+ gnome_ui_handler_set_app (container->uih, GNOME_APP (container->app));
- // new page/zoom/rotate values
- page = page1;
- zoom = zoom1;
- rotate = rotate1;
+ container_create_menus (container);
+ container_create_toolbar (container);
- // initialize mouse-related stuff
- linkAction = NULL;
- win->setDefaultCursor();
- linkLabel->setText(NULL);
- selectXMin = selectXMax = 0;
- selectYMin = selectYMax = 0;
- lastDragLeft = lastDragTop = gTrue;
+ gtk_widget_show_all (container->app);
- // draw the page
- doc->displayPage(out, page, zoomDPI[zoom - minZoom], rotate, gTrue);
- layoutCbk(win);
+ if (fname)
+ if (!open_pdf (container, fname)) {
+ container_destroy (container);
+ return NULL;
+ }
- // update page number display
- sprintf(s, "%d", page);
- pageNumText->setText(s);
+ containers = g_list_append (containers, container);
- // back to regular cursor
- win->setBusyCursor(gFalse);
+ gtk_widget_show_all (container->app);
+
+ return container;
}
int
-main (int argc, char *argv [])
+main (int argc, char **argv)
{
- char **view_files = NULL;
- int lp;
-
- gnome_init_with_popt_table (
- "gpdf", "0.1", argc, argv,
- gpdf_popt_options, 0, &ctx);
+ CORBA_Environment ev;
+ CORBA_ORB orb;
+ char **view_files = NULL;
+ gboolean loaded;
+ int i;
+
+ CORBA_exception_init (&ev);
+ gnome_CORBA_init_with_popt_table ("PDFViewer", "0.0.1",
+ &argc, argv,
+ gpdf_popt_options, 0, &ctx,
+ GNORBA_INIT_SERVER_FUNC, &ev);
+
+ CORBA_exception_free (&ev);
+
+ orb = gnome_CORBA_ORB ();
+
+ if (bonobo_init (orb, NULL, NULL) == FALSE)
+ g_error (_("Could not initialize Bonobo!\n"));
+ bonobo_activate ();
+
view_files = poptGetArgs (ctx);
+
/* Load files */
+ i = 0;
+ loaded = FALSE;
if (view_files) {
- for (lp=0;view_files[lp];lp++) {
- GString *name = new GString (view_files[lp]);
- if (!name || !loadFile(name))
- printf ("Error loading '%s'\n", view_files[lp]);
- }
- } else {
- printf ("Need filenames...\n");
- exit (0);
+ for (i = 0; view_files[i]; i++)
+ if (container_new (view_files[i]))
+ loaded = TRUE;
}
-
+ if ((i == 0) || !loaded)
+ container_new (NULL);
+
poptFreeContext (ctx);
gtk_main ();
-
- /* Destroy files */
+
+ return 0;
}