component/gnumeric.c

   1 /* vim: set sw=8: -*- Mode: C; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 8 -*- */
   2 /*
   3  * Gnumeric GOffice component
   4  * gnumeric.c
   5  *
   6  * Copyright (C) 2006-2010
   7  *
   8  * Developed by Jean Bréfort <jean.brefort@normalesup.org>
   9  *
  10  * This program is free software; you can redistribute it and/or
  11  * modify it under the terms of the GNU General Public License as
  12  * published by the Free Software Foundation; either version 2 of the
  13  * License, or (at your option) any later version.
  14  *
  15  * This program is distributed in the hope that it will be useful,
  16  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  17  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  18  * GNU General Public License for more details.
  19  *
  20  * You should have received a copy of the GNU General Public License
  21  * along with this program; if not, write to the Free Software
  22  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
  23  * USA
  24  */
  25
  26 #include <gnumeric-config.h>
  27 #include <gnumeric.h>
  28 #include <gnm-plugin.h>
  29 #include <gnumeric-conf.h>
  30 #include <gui-file.h>
  31 #include <gutils.h>
  32 #include <print-cell.h>
  33 #include <print.h>
  34 #include <ranges.h>
  35 #include <selection.h>
  36 #include <sheet.h>
  37 #include <wbc-gtk-impl.h>
  38 #include <workbook-view.h>
  39 #include <workbook.h>
  40
  41 #include <goffice/goffice.h>
  42 #include <goffice/component/goffice-component.h>
  43 #include <goffice/component/go-component-factory.h>
  44 #include <goffice/component/go-component.h>
  45 #include <goffice/app/module-plugin-defs.h>
  46 #include <gsf/gsf-impl-utils.h>
  47 #include <gsf/gsf-input-memory.h>
  48 #include <gsf/gsf-output-memory.h>
  49
  50 #include <gtk/gtk.h>
  51
  52 #include <glib/gi18n-lib.h>
  53 #include <cairo.h>
  54 #include <pango/pangocairo.h>
  55
  56 GOPluginModuleDepend const go_plugin_depends [] = {
  57         { "goffice", GOFFICE_API_VERSION }
  58 };
  59 GOPluginModuleHeader const go_plugin_header =
  60         { GOFFICE_MODULE_PLUGIN_MAGIC_NUMBER, G_N_ELEMENTS (go_plugin_depends) };
  61
  62 G_MODULE_EXPORT void go_plugin_init (GOPlugin *plugin, GOCmdContext *cc);
  63 G_MODULE_EXPORT void go_plugin_shutdown (GOPlugin *plugin, GOCmdContext *cc);
  64
  65 typedef struct {
  66         GOComponent parent;
  67
  68         WorkbookView    *wv;
  69         Workbook        *wb;
  70         WBCGtk          *edited;
  71         Sheet           *sheet;
  72         int col_start, col_end, row_start, row_end;
  73         int width, height;
  74 } GOGnmComponent;
  75
  76 typedef GOComponentClass GOGnmComponentClass;
  77
  78 #define GO_TYPE_GNM_COMPONENT   (go_gnm_component_get_type ())
  79 #define GO_GNM_COMPONENT(o)             (G_TYPE_CHECK_INSTANCE_CAST ((o), GO_TYPE_GNM_COMPONENT, GOGnmComponent))
  80 #define GO_IS_GNM_COMPONENT(o)  (G_TYPE_CHECK_INSTANCE_TYPE ((o), GO_TYPE_GNM_COMPONENT))
  81
  82 GType go_gnm_component_get_type (void);
  83
  84 static GObjectClass *gognm_parent_klass;
  85
  86 static gboolean
  87 go_gnm_component_get_data (GOComponent *component, gpointer *data, int *length,
  88                                                                         void (**clearfunc) (gpointer), gpointer *user_data)
  89 {
  90         GOGnmComponent *gognm = GO_GNM_COMPONENT (component);
  91         if (gognm->wv) {
  92                 GOCmdContext *cc = go_component_get_command_context ();
  93                 GOIOContext *io_context = go_io_context_new (cc);
  94                 GsfOutput *output = gsf_output_memory_new ();
  95                 GOFileSaver *gfs = workbook_get_file_saver (gognm->wb);
  96                 if (gfs == NULL)
  97                         gfs = go_file_saver_get_default ();
  98                 wbv_save_to_output (gognm->wv, gfs, output, io_context);
  99                 *data = (gpointer) gsf_output_memory_get_bytes (GSF_OUTPUT_MEMORY (output));
 100                 *length = gsf_output_size (output);
 101                 *clearfunc = g_object_unref;
 102                 *user_data = output;
 103                 return TRUE;
 104         }
 105         return FALSE;
 106 }
 107
 108 static void
 109 go_gnm_component_update_data (GOGnmComponent *gognm)
 110 {
 111         SheetView *sv;
 112         GnmRange const *range;
 113         gognm->sheet = wb_view_cur_sheet (gognm->wv);
 114         sv = sheet_get_view (gognm->sheet, gognm->wv);
 115         range = selection_first_range (sv, NULL, NULL);
 116         gognm->col_start = range->start.col;
 117         gognm->row_start = range->start.row;
 118         gognm->col_end = range->end.col;
 119         gognm->row_end = range->end.row;
 120         gognm->width = sheet_col_get_distance_pts (
 121                 gognm->sheet, gognm->col_start, gognm->col_end + 1);
 122         gognm->parent.width = gognm->width / 72.;
 123         gognm->parent.descent = 0.;
 124         gognm->height = sheet_row_get_distance_pts (
 125                 gognm->sheet, gognm->row_start, gognm->row_end + 1);
 126         gognm->parent.ascent = gognm->parent.height = gognm->height  / 72.;
 127 }
 128
 129 static void
 130 go_gnm_component_set_data (GOComponent *component)
 131 {
 132         GOGnmComponent *gognm = GO_GNM_COMPONENT (component);
 133         GOCmdContext *cc = go_component_get_command_context ();
 134         GOIOContext *io_context = go_io_context_new (cc);
 135         GsfInput *input = gsf_input_memory_new (component->data, component->length, FALSE);
 136
 137         g_object_set (G_OBJECT (io_context), "exec-main-loop", FALSE, NULL);
 138         if (gognm->wv != NULL) {
 139                 g_object_unref (gognm->wv);
 140                 g_object_unref (gognm->wb);
 141         }
 142         gognm->wv = wb_view_new_from_input (input, NULL, NULL, io_context, NULL);
 143         gognm->wb = wb_view_get_workbook (gognm->wv);
 144         g_object_unref (io_context);
 145         go_gnm_component_update_data (gognm);
 146 }
 147
 148 static void
 149 go_gnm_component_render (GOComponent *component, cairo_t *cr, double width_pixels, double height_pixels)
 150 {
 151         GOGnmComponent *gognm = GO_GNM_COMPONENT (component);
 152         GnmRange range;
 153
 154         if (!gognm->sheet)
 155                 go_gnm_component_update_data (gognm);
 156
 157         range_init (&range, gognm->col_start, gognm->row_start, gognm->col_end, gognm->row_end);
 158         cairo_save (cr);
 159         cairo_set_line_cap (cr, CAIRO_LINE_CAP_BUTT);
 160         cairo_scale (cr, ((double) width_pixels) / gognm->width, ((double) height_pixels) / gognm->height);
 161         cairo_rectangle (cr, 0., 0., gognm->width, gognm->height);
 162         cairo_clip (cr); /* not sure it is necessary */
 163         gnm_gtk_print_cell_range (cr, gognm->sheet, &range, 0., 0.,
 164                                   gognm->sheet->print_info);
 165         /* Now render objects */
 166         gnm_print_sheet_objects (cr, gognm->sheet, &range, 0., 0.);
 167         cairo_restore (cr);
 168 }
 169
 170 static void
 171 cb_gognm_save (G_GNUC_UNUSED GtkAction *a, WBCGtk *wbcg)
 172 {
 173         gpointer data = g_object_get_data (G_OBJECT (wbcg), "component");
 174         if (GO_IS_COMPONENT (data)) {
 175                 GOComponent *component = GO_COMPONENT (data);
 176                 /* update the component data since not all clients will call set_data */
 177                 GOGnmComponent *gognm = GO_GNM_COMPONENT (component);
 178                 WorkbookView *wv = wb_control_view (WORKBOOK_CONTROL (wbcg));
 179                 if (wv != gognm->wv) {
 180                         if (gognm->wv != NULL) {
 181                                 g_object_unref (gognm->wv);
 182                                 g_object_unref (gognm->wb);
 183                         }
 184                         gognm->wv = g_object_ref (wv);
 185                         gognm->wb = g_object_ref (wb_view_get_workbook (wv));
 186                 }
 187                 go_doc_set_dirty (GO_DOC (gognm->wb), FALSE);
 188                 go_gnm_component_update_data (gognm);
 189                 go_component_emit_changed (component);
 190         } else
 191                 gui_file_save (wbcg, wb_control_view (WORKBOOK_CONTROL (wbcg)));
 192 }
 193
 194 static GtkActionEntry const actions[] = {
 195 /* File */
 196         { "FileSaveEmbed", GTK_STOCK_SAVE, NULL,
 197                 NULL, N_("Save the embedded workbook"),
 198                 G_CALLBACK (cb_gognm_save) }
 199 };
 200
 201 static void
 202 cb_editor_destroyed (GOGnmComponent *gognm)
 203 {
 204         gognm->edited = NULL;
 205 }
 206
 207 static GtkWindow*
 208 go_gnm_component_edit (GOComponent *component)
 209 {
 210         GOGnmComponent *gognm = GO_GNM_COMPONENT (component);
 211         WorkbookView *wv;
 212         if (gognm->edited) {
 213                 gdk_window_raise (gtk_widget_get_parent_window (GTK_WIDGET (wbcg_toplevel (gognm->edited))));
 214                 return wbcg_toplevel (gognm->edited);
 215         }
 216         if (!gognm->wv) {
 217                 component->ascent = 0.;
 218                 component->descent = 0.;
 219                 component->width = 0.;
 220                 wv = workbook_view_new (workbook_new_with_sheets (1));
 221         } else {
 222                 GOCmdContext *cc = go_component_get_command_context ();
 223                 GOIOContext *io_context = GO_IS_IO_CONTEXT (cc)? GO_IO_CONTEXT (g_object_ref (cc)): go_io_context_new (cc);
 224                 GsfInput *input = gsf_input_memory_new (component->data, component->length, FALSE);
 225
 226                 g_object_set (G_OBJECT (io_context), "exec-main-loop", FALSE, NULL);
 227                 wv = wb_view_new_from_input (input, NULL, NULL, io_context, NULL);
 228                 g_object_unref (io_context);
 229         }
 230         set_uifilename ("Gnumeric-embed.xml", actions, G_N_ELEMENTS (actions));
 231         gognm->edited = wbc_gtk_new (wv, NULL, NULL, NULL);
 232
 233         g_object_set_data (G_OBJECT (gognm->edited), "component", gognm);
 234         g_signal_connect_swapped (gognm->edited->toplevel, "destroy",
 235                 G_CALLBACK (cb_editor_destroyed), gognm);
 236         return wbcg_toplevel (gognm->edited);
 237 }
 238
 239 static void
 240 go_gnm_component_finalize (GObject *obj)
 241 {
 242         GOGnmComponent *gognm = GO_GNM_COMPONENT (obj);
 243         if (gognm->wv != NULL) {
 244                 g_object_unref (gognm->wv);
 245                 g_object_unref (gognm->wb);
 246                 gognm->wv = NULL;
 247         }
 248         if (gognm->edited != NULL) {
 249                 g_object_unref (wb_control_view (WORKBOOK_CONTROL (gognm->edited)));
 250                 gognm->edited = NULL;
 251         }
 252         G_OBJECT_CLASS (gognm_parent_klass)->finalize (obj);
 253 }
 254
 255 static void
 256 go_gnm_component_init (GOComponent *component)
 257 {
 258         GOGnmComponent *gognm = GO_GNM_COMPONENT (component);
 259         component->resizable = FALSE;
 260         component->editable = TRUE;
 261         component->snapshot_type = GO_SNAPSHOT_SVG;
 262         gognm->row_start = gognm->col_start = 0;
 263         gognm->sheet = NULL;
 264         gognm->row_end = 9;
 265         gognm->col_end = 4;
 266 }
 267
 268 static void
 269 go_gnm_component_class_init (GOComponentClass *klass)
 270 {
 271         GObjectClass *obj_klass = (GObjectClass *) klass;
 272         obj_klass->finalize = go_gnm_component_finalize;
 273
 274         gognm_parent_klass = (GObjectClass*) g_type_class_peek_parent (klass);
 275
 276         klass->get_data = go_gnm_component_get_data;
 277         klass->set_data = go_gnm_component_set_data;
 278         klass->render = go_gnm_component_render;
 279         klass->edit = go_gnm_component_edit;
 280 }
 281
 282 GSF_DYNAMIC_CLASS (GOGnmComponent, go_gnm_component,
 283         go_gnm_component_class_init, go_gnm_component_init,
 284         GO_TYPE_COMPONENT)
 285
 286 /*************************************************************************************/
 287
 288 G_MODULE_EXPORT void
 289 go_plugin_init (GOPlugin *plugin, G_GNUC_UNUSED GOCmdContext *cc)
 290 {
 291         GTypeModule *module;
 292         char const *env_var;
 293         GSList *dir_list;
 294         const char *usr_dir = gnm_usr_dir (TRUE);
 295
 296         bindtextdomain (GETTEXT_PACKAGE, gnm_locale_dir ());
 297         bindtextdomain (GETTEXT_PACKAGE "-functions", gnm_locale_dir ());
 298 #ifdef ENABLE_NLS
 299         bind_textdomain_codeset (GETTEXT_PACKAGE, "UTF-8");
 300 #endif
 301         module = go_plugin_get_type_module (plugin);
 302         go_gnm_component_register_type (module);
 303         gnm_init ();
 304         if (!gnm_sys_data_dir ())
 305                 gutils_init ();
 306         dir_list = go_slist_create (
 307                 g_build_filename (gnm_sys_lib_dir (), PLUGIN_SUBDIR, NULL),
 308                 (usr_dir == NULL ? NULL :
 309                         g_build_filename (usr_dir, PLUGIN_SUBDIR, NULL)),
 310                 NULL);
 311         dir_list = g_slist_concat
 312                 (dir_list,
 313                  go_string_slist_copy (gnm_conf_get_autoformat_extra_dirs ()));
 314
 315         env_var = g_getenv ("GNUMERIC_PLUGIN_PATH");
 316         if (env_var != NULL)
 317                 GO_SLIST_CONCAT (dir_list, go_strsplit_to_slist (env_var, G_SEARCHPATH_SEPARATOR));
 318
 319         go_components_set_mime_suffix ("application/x-gnumeric", "*.gnumeric");
 320
 321         go_plugins_init (go_component_get_command_context (),
 322                         gnm_conf_get_plugins_file_states (),
 323                         gnm_conf_get_plugins_active (),
 324                         dir_list,
 325                         gnm_conf_get_plugins_activate_new (),
 326                         gnm_plugin_loader_module_get_type ());
 327 }
 328
 329 G_MODULE_EXPORT void
 330 go_plugin_shutdown (G_GNUC_UNUSED GOPlugin *plugin,
 331                     G_GNUC_UNUSED GOCmdContext *cc)
 332 {
 333 }