X-Git-Url: https://www.fi.muni.cz/~kas/git//home/kas/public_html/git/?a=blobdiff_plain;f=pdf%2Fxpdf%2Fgpdf.cc;h=d77db661418a5c973c1dc39776afabc712a7c426;hb=ed6317c35f484bd66ebea883c1a19b2a216259e7;hp=21ffb7f71ef2536f78ea9f9ae0dde621bca0e9e3;hpb=48e6b112a550c8d9473a3119893e7a69cb2461b9;p=evince.git diff --git a/pdf/xpdf/gpdf.cc b/pdf/xpdf/gpdf.cc index 21ffb7f7..d77db661 100644 --- a/pdf/xpdf/gpdf.cc +++ b/pdf/xpdf/gpdf.cc @@ -1,21 +1,25 @@ -//======================================================================== -// -// gpdf.cc -// -// Copyright 1996 Derek B. Noonburg -// Copyright 1999 Michael Meeks. -// Copyright 1999 Miguel de Icaza -// -//======================================================================== - +/* + * PDF viewer Bonobo container. + * + * Author: + * Michael Meeks + * + */ #include #include #include #include +extern "C" { #define GString G_String #include -#include +#include +#include +#include +#include #undef GString +} +#include +#include #include "gtypes.h" #include "GString.h" #include "parseargs.h" @@ -37,30 +41,8 @@ #include "Error.h" #include "config.h" -GBool printCommands = gFalse; -gint gpdf_debug=1; poptContext ctx; - -#define DEV_DEBUG 0 - -double zoom = 86.0; -gint page = 2; - -#define DOC_ROOT_TAG "xpdf_doc_root" -struct DOC_ROOT { - GString *title; - PDFDoc *pdf; - Catalog *cat; - GtkDrawingArea *area; - GtkPixmap *pixmap; - OutputDev *out; - GdkColor paper; - GtkScrolledWindow *scroll; - GtkWidget *mainframe; - GladeXML *gui; -}; - -GList *documents = NULL; +gint gpdf_debug=1; const struct poptOption gpdf_popt_options [] = { { "debug", '\0', POPT_ARG_INT, &gpdf_debug, 0, @@ -68,237 +50,584 @@ const struct poptOption gpdf_popt_options [] = { { NULL, '\0', 0, NULL, 0 } }; -extern "C" { - static void connect_signals (DOC_ROOT *doc); -} - -//------------------------------------------------------------------------ -// loadFile / displayPage -//------------------------------------------------------------------------ +typedef struct { + GnomeContainer *container; + GnomeUIHandler *uih; -static GtkPixmap * -setup_pixmap (DOC_ROOT *doc, GdkWindow *window) -{ - GdkGCValues gcValues; - GdkGC *strokeGC; - PDFDoc *pdf = doc->pdf; - int w, h; - GdkPixmap *pixmap = NULL; - - w = (int)((pdf->getPageWidth (page) * zoom) / 72.0); - h = (int)((pdf->getPageHeight (page) * zoom) / 72.0); - - pixmap = gdk_pixmap_new (window, w, h, -1); - - gdk_color_white (gtk_widget_get_default_colormap(), &doc->paper); - doc->out = new GOutputDev (pixmap, doc->paper, window); - - gdk_color_white (gtk_widget_get_default_colormap (), &gcValues.foreground); - gdk_color_black (gtk_widget_get_default_colormap (), &gcValues.background); - gcValues.line_width = 1; - gcValues.line_style = GDK_LINE_SOLID; - strokeGC = gdk_gc_new_with_values ( - pixmap, &gcValues, - (enum GdkGCValuesMask)(GDK_GC_FOREGROUND | GDK_GC_BACKGROUND | GDK_GC_LINE_WIDTH | GDK_GC_LINE_STYLE)); - - gdk_draw_rectangle (pixmap, strokeGC, - TRUE, 0, 0, - w, h); + GnomeViewFrame *active_view_frame; - return GTK_PIXMAP (gtk_pixmap_new (pixmap, NULL)); -} + GtkWidget *app; + GtkWidget *vbox; +} Container; -static void -show_page (DOC_ROOT *doc, gint page) -{ - doc->pdf->displayPage(doc->out, page, zoom, 0, gTrue); -} +typedef struct { + Container *container; -/*static void displayPage(int page1, int zoom1, int rotate1) { - char s[20]; + GnomeClientSite *client_site; + GnomeViewFrame *view_frame; + GnomeObjectClient *server; - // check for document - if (!doc) - return; + GtkWidget *views_hbox; +} Component; - // busy cursor - if (win) - win->setBusyCursor(gTrue); +GList *containers = NULL; +/* + * Static prototypes. + */ +extern "C" { + static Container *container_new (void); + 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 Component *container_activate_component (Container *container, char *component_goad_id); +} - // new page/zoom/rotate values - page = page1; - zoom = zoom1; - rotate = rotate1; +/* + * 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 +}; - // initialize mouse-related stuff - linkAction = NULL; - win->setDefaultCursor(); - linkLabel->setText(NULL); - selectXMin = selectXMax = 0; - selectYMin = selectYMax = 0; - lastDragLeft = lastDragTop = gTrue; +static GnomeUIInfo container_main_menu [] = { + GNOMEUIINFO_MENU_FILE_TREE (container_file_menu), + GNOMEUIINFO_END +}; - // draw the page - doc->displayPage(out, page, zoomDPI[zoom - minZoom], rotate, gTrue); - layoutCbk(win); +extern "C" { + static void + open_pdf (Container *container, const char *name) + { + GnomeObjectClient *object; + GnomeStream *stream; + GNOME_PersistStream persist; + Component *comp; + CORBA_Environment ev; + + comp = container_activate_component (container, "bonobo-object:image-x-pdf"); + if (!comp || !(object = comp->server)) { + gnome_error_dialog (_("Could not launch bonobo object.")); + return; + } + + 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; + } + + 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; + } + + 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); +/* app->contains_pdf = 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 *app) + { + 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 (app->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] != '/') { +/* if (app->contains_pdf) + app = application_new ();*/ + char *fname = g_strdup (name); + open_pdf (app, fname); + 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 (app->app)); + gnome_dialog_run (GNOME_DIALOG (dialog)); + } + } + + gtk_widget_destroy (GTK_WIDGET (fsel)); + } - // update page number display - sprintf(s, "%d", page); - pageNumText->setText(s); + static void + container_destroy (Container *cont) + { + containers = g_list_remove (containers, cont); + gtk_widget_destroy (cont->app); + 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); + } - // back to regular cursor - win->setBusyCursor(gFalse); - }*/ + static void + component_user_activate_request_cb (GnomeViewFrame *view_frame, gpointer data) + { + Component *component = (Component *) data; + Container *container = component->container; + + /* + * If there is a + * If there is already an active View, deactivate it. + */ + if (container->active_view_frame != NULL) { + /* + * This just sends a notice to the embedded View that + * it is being deactivated. We will also forcibly + * cover it so that it does not receive any Gtk + * events. + */ + gnome_view_frame_view_deactivate (container->active_view_frame); + + /* + * Here we manually cover it if it hasn't acquiesced. + * If it has consented to be deactivated, then it will + * already have notified us that it is inactive, and + * we will have covered it and set active_view_frame + * to NULL. Which is why this check is here. + */ + if (container->active_view_frame != NULL) + gnome_view_frame_set_covered (container->active_view_frame, TRUE); + + container->active_view_frame = NULL; + } + + /* + * Activate the View which the user clicked on. This just + * sends a request to the embedded View to activate itself. + * When it agrees to be activated, it will notify its + * ViewFrame, and our view_activated_cb callback will be + * called. + * + * We do not uncover the View here, because it may not wish to + * be activated, and so we wait until it notifies us that it + * has been activated to uncover it. + */ + gnome_view_frame_view_activate (view_frame); + } + + static void + component_view_activated_cb (GnomeViewFrame *view_frame, gboolean activated, gpointer data) + { + Component *component = (Component *) data; + Container *container = component->container; + + if (activated) { + /* + * If the View is requesting to be activated, then we + * check whether or not there is already an active + * View. + */ + if (container->active_view_frame != NULL) { + g_warning ("View requested to be activated but there is already " + "an active View!\n"); + return; + } + + /* + * Otherwise, uncover it so that it can receive + * events, and set it as the active View. + */ + gnome_view_frame_set_covered (view_frame, FALSE); + container->active_view_frame = view_frame; + } else { + /* + * If the View is asking to be deactivated, always + * oblige. We may have already deactivated it (see + * user_activation_request_cb), but there's no harm in + * doing it again. There is always the possibility + * that a View will ask to be deactivated when we have + * not told it to deactivate itself, and that is + * why we cover the view here. + */ + gnome_view_frame_set_covered (view_frame, TRUE); + + if (view_frame == container->active_view_frame) + container->active_view_frame = NULL; + } + } + + static void + component_user_context_cb (GnomeViewFrame *view_frame, gpointer data) + { + Component *component = (Component *) data; + char *executed_verb; + GList *l; + + /* + * See if the remote GnomeEmbeddable supports any verbs at + * all. + */ + l = gnome_client_site_get_verbs (component->client_site); + if (l == NULL) + return; + gnome_client_site_free_verbs (l); + + /* + * Popup the verb popup and execute the chosen verb. This + * function saves us the work of creating the menu, connecting + * the callback, and executing the verb on the remove + * GnomeView. We could implement all this functionality + * ourselves if we wanted. + */ + executed_verb = gnome_view_frame_popup_verbs (view_frame); + + g_free (executed_verb); + } +} -static PDFDoc * -getPDF (GString *fname) +static void +component_add_view (Component *component) { - PDFDoc *pdf; - pdf = new PDFDoc(fname); - if (!pdf->isOk()) { - delete pdf; - return NULL; - } - g_return_val_if_fail (pdf->getCatalog(), NULL); - return pdf; + GnomeViewFrame *view_frame; + GtkWidget *view_widget; + + /* + * Create the remote view and the local ViewFrame. + */ + view_frame = gnome_client_site_embeddable_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, component->container->uih); + + /* + * Embed the view frame into the application. + */ + view_widget = gnome_view_frame_get_wrapper (view_frame); + gtk_box_pack_start (GTK_BOX (component->views_hbox), view_widget, + FALSE, FALSE, 5); + + /* + * The "user_activate" signal will be emitted when the user + * double clicks on the "cover". The cover is a transparent + * window which sits on top of the component and keeps any + * events (mouse, keyboard) from reaching it. When the user + * double clicks on the cover, the container (that's us) + * can choose to activate the component. + */ + gtk_signal_connect (GTK_OBJECT (view_frame), "user_activate", + GTK_SIGNAL_FUNC (component_user_activate_request_cb), component); + + /* + * In-place activation of a component is a two-step process. + * After the user double clicks on the component, our signal + * callback (compoennt_user_activate_request_cb()) asks the + * component to activate itself (see + * gnome_view_frame_view_activate()). The component can then + * choose to either accept or refuse activation. When an + * embedded component notifies us of its decision to change + * its activation state, the "view_activated" signal is + * emitted from the view frame. It is at that point that we + * actually remove the cover so that events can get through. + */ + gtk_signal_connect (GTK_OBJECT (view_frame), "view_activated", + GTK_SIGNAL_FUNC (component_view_activated_cb), component); + + /* + * The "user_context" signal is emitted when the user right + * clicks on the wrapper. We use it to pop up a verb menu. + */ + gtk_signal_connect (GTK_OBJECT (view_frame), "user_context", + GTK_SIGNAL_FUNC (component_user_context_cb), component); + + /* + * Show the component. + */ + gtk_widget_show_all (view_widget); } -static DOC_ROOT * -doc_root_new (GString *fileName) +static void +component_new_view_cb (GtkWidget *button, gpointer data) { - DOC_ROOT *doc = new DOC_ROOT(); - GtkVBox *pane; - - // open PDF file - doc->pdf = getPDF (fileName); - if (!doc->pdf) { - delete doc; - return NULL; - } + Component *component = (Component *) data; - doc->gui = glade_xml_new (GPDF_GLADE_DIR "/gpdf.glade", NULL); - if (!doc->gui || - !(doc->mainframe = glade_xml_get_widget (doc->gui, "gpdf")) || - !(pane = GTK_VBOX (glade_xml_get_widget (doc->gui, "pane")))) { - printf ("Couldn't find " GPDF_GLADE_DIR "/gpdf.glade\n"); - delete doc->pdf; - delete doc; - return NULL; - } + component_add_view (component); +} + +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, 0, NULL); + + 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; +} - connect_signals (doc); +/* + * Use query_interface to see if `obj' has `interface'. + */ +static gboolean +gnome_object_has_interface (GnomeObject *obj, char *interface) +{ + CORBA_Environment ev; + CORBA_Object requested_interface; - gtk_object_set_data (GTK_OBJECT (doc->mainframe), DOC_ROOT_TAG, doc); + CORBA_exception_init (&ev); - doc->pixmap = setup_pixmap (doc, gtk_widget_get_parent_window (GTK_WIDGET (pane))); - - doc->scroll = GTK_SCROLLED_WINDOW (gtk_scrolled_window_new (NULL, NULL)); - gtk_scrolled_window_set_policy (doc->scroll, GTK_POLICY_AUTOMATIC, - GTK_POLICY_AUTOMATIC); - show_page (doc, page); - gtk_scrolled_window_add_with_viewport (doc->scroll, GTK_WIDGET (doc->pixmap)); - gtk_box_pack_start (GTK_BOX (pane), GTK_WIDGET (doc->scroll), TRUE, TRUE, 0); + requested_interface = GNOME_Unknown_query_interface ( + gnome_object_corba_objref (obj), interface, &ev); - gtk_widget_show_all (doc->mainframe); + CORBA_exception_free (&ev); - documents = g_list_append (documents, doc); + if (!CORBA_Object_is_nil(requested_interface, &ev) && + ev._major == CORBA_NO_EXCEPTION) + { + /* Get rid of the interface we've been passed */ + CORBA_Object_release (requested_interface, &ev); + return TRUE; + } - return doc; + return FALSE; } static void -doc_root_destroy (DOC_ROOT *doc) +container_create_component_frame (Container *container, Component *component, char *name) { - gtk_widget_destroy (doc->mainframe); - gtk_object_destroy (GTK_OBJECT (doc->gui)); - - documents = g_list_remove (documents, doc); - if (g_list_length (documents) == 0) - gtk_main_quit (); - delete (doc); + /* + * This hbox will store all the views of the component. + */ + component->views_hbox = gtk_hbox_new (FALSE, 2); + + gtk_box_pack_start (GTK_BOX (container->vbox), component->views_hbox, + TRUE, FALSE, 5); + gtk_widget_show_all (component->views_hbox); } -//------------------------------------------------------------------------ -// Signal handlers -//------------------------------------------------------------------------ - extern "C" { - void - do_close (GtkWidget *menuitem, DOC_ROOT *doc) + static Component * + container_activate_component (Container *container, char *component_goad_id) { - doc_root_destroy (doc); - } + 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; + + /* + * Now we have a GnomeEmbeddable bound to our local + * ClientSite. Here we create a little on-screen box to store + * the embeddable in, when the user adds views for it. + */ + container_create_component_frame (container, component, component_goad_id); + + component_add_view (component); - void - do_exit (GtkWidget *menuitem, DOC_ROOT *doc) - { - GList *l; - while ((l=documents)) - doc_root_destroy ((DOC_ROOT *)l->data); + return component; } +} - static void - do_about_box (GtkWidget *w, DOC_ROOT *doc) - { - GladeXML *gui = glade_xml_new (GPDF_GLADE_DIR "/about.glade", NULL); - g_return_if_fail (gui); - GtkWidget *wi = glade_xml_get_widget (gui, "about_box"); - g_return_if_fail (wi); - gtk_widget_show (wi); - gtk_object_destroy (GTK_OBJECT (gui)); - } +static void +container_create_menus (Container *container) +{ + GnomeUIHandlerMenuItem *menu_list; - static void - simple_connect (DOC_ROOT *doc, const char *name, GtkSignalFunc func) - { - GtkWidget *w; - w = glade_xml_get_widget (doc->gui, name); - gtk_signal_connect (GTK_OBJECT (w), "activate", func, doc); - } - - static void - connect_signals (DOC_ROOT *doc) - { - simple_connect (doc, "about_menu", GTK_SIGNAL_FUNC (do_about_box)); - simple_connect (doc, "close_menu", GTK_SIGNAL_FUNC (do_close)); - simple_connect (doc, "exit_menu", GTK_SIGNAL_FUNC (do_exit)); - } + 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 (void) +{ + Container *container; + + container = g_new0 (Container, 1); + + container->app = gnome_app_new ("pdf-viewer", + "GNOME PDF viewer"); + + gtk_window_set_default_size (GTK_WINDOW (container->app), 400, 400); + gtk_window_set_policy (GTK_WINDOW (container->app), TRUE, TRUE, FALSE); + + container->container = gnome_container_new (); + + /* + * This is the VBox we will stuff embedded components into. + */ + container->vbox = gtk_vbox_new (FALSE, 0); + gnome_app_set_contents (GNOME_APP (container->app), container->vbox); + + /* + * 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)); + + /* + * Create the menus. + */ + container_create_menus (container); + + gtk_widget_show_all (container->app); } int -main (int argc, char *argv []) +main (int argc, char **argv) { - char **view_files = NULL; - int i; - - gnome_init_with_popt_table ( - "gpdf", "0.1", argc, argv, - gpdf_popt_options, 0, &ctx); + CORBA_Environment ev; + CORBA_ORB orb; - errorInit(); - - initParams (xpdfConfigFile); /* Init font path */ + CORBA_exception_init (&ev); - glade_gnome_init (); + gnome_CORBA_init ("gnome_xpdf_viewer", "0.1", &argc, argv, 0, &ev); - view_files = poptGetArgs (ctx); - /* Load files */ - if (view_files) { - for (i = 0; view_files[i]; i++) { - GString *name = new GString (view_files[i]); - if (!name || !doc_root_new (name)) - printf ("Error loading '%s'\n", view_files[i]); - } - } else { - printf ("Need filenames...\n"); - exit (0); - } + CORBA_exception_free (&ev); + + orb = gnome_CORBA_ORB (); - poptFreeContext (ctx); + if (bonobo_init (orb, NULL, NULL) == FALSE) + g_error (_("Could not initialize Bonobo!\n")); - gtk_main (); + container_create (); - freeParams(); + gtk_main (); - /* Destroy files */ + return 0; }