src/main.c

   1 #define ENABLE_XINPUT_BUGFIX  1
   2 /* change the above to 0 if you are experiencing calibration problems with
   3    XInput and want to try things differently
   4 */
   5
   6 #ifdef HAVE_CONFIG_H
   7 #  include <config.h>
   8 #endif
   9
  10 #include <string.h>
  11 #include <gtk/gtk.h>
  12 #include <libgnomecanvas/libgnomecanvas.h>
  13
  14 #include "xournal.h"
  15 #include "xo-interface.h"
  16 #include "xo-support.h"
  17 #include "xo-callbacks.h"
  18 #include "xo-misc.h"
  19 #include "xo-file.h"
  20
  21 GtkWidget *winMain;
  22 GnomeCanvas *canvas;
  23
  24 struct Journal journal; // the journal
  25 struct BgPdf bgpdf;  // the PDF loader stuff
  26 struct UIData ui;   // the user interface data
  27 struct UndoItem *undo, *redo; // the undo and redo stacks
  28
  29 void hide_unimplemented(void)
  30 {
  31   gtk_widget_hide(GET_COMPONENT("filePrintOptions"));
  32   gtk_widget_hide(GET_COMPONENT("journalFlatten"));
  33   gtk_widget_hide(GET_COMPONENT("papercolorOther"));
  34   gtk_widget_hide(GET_COMPONENT("toolsText"));
  35   gtk_widget_hide(GET_COMPONENT("buttonText"));
  36   gtk_widget_hide(GET_COMPONENT("toolsSelectRegion"));
  37   gtk_widget_hide(GET_COMPONENT("buttonSelectRegion"));
  38   gtk_widget_hide(GET_COMPONENT("colorOther"));
  39   gtk_widget_hide(GET_COMPONENT("toolsTextFont"));
  40   gtk_widget_hide(GET_COMPONENT("toolsDefaultText"));
  41   gtk_widget_hide(GET_COMPONENT("optionsSavePreferences"));
  42   gtk_widget_hide(GET_COMPONENT("helpIndex"));
  43 }
  44
  45 void init_stuff (int argc, char *argv[])
  46 {
  47   GtkWidget *w;
  48   GList *dev_list;
  49   GdkDevice *device;
  50   GdkScreen *screen;
  51   int i;
  52   struct Brush *b;
  53   gboolean can_xinput, success;
  54   gchar *tmppath, *tmpfn;
  55
  56   // we need an empty canvas prior to creating the journal structures
  57   canvas = GNOME_CANVAS (gnome_canvas_new_aa ());
  58
  59   // initialize config file names
  60   tmppath = g_build_filename(g_get_home_dir(), CONFIG_DIR, NULL);
  61   g_mkdir(tmppath, 0700); // safer (MRU data may be confidential)
  62   ui.mrufile = g_build_filename(tmppath, MRU_FILE, NULL);
  63   g_free(tmppath);
  64
  65   // initialize data
  66   // TODO: load this from a preferences file
  67
  68   ui.default_page.height = 792.0;
  69   ui.default_page.width = 612.0;
  70   ui.default_page.bg = g_new(struct Background, 1);
  71   ui.default_page.bg->type = BG_SOLID;
  72   ui.default_page.bg->color_no = COLOR_WHITE;
  73   ui.default_page.bg->color_rgba = predef_bgcolors_rgba[COLOR_WHITE];
  74   ui.default_page.bg->ruling = RULING_LINED;
  75   ui.default_page.bg->canvas_item = NULL;
  76
  77   ui.zoom = DEFAULT_ZOOM;
  78   ui.view_continuous = TRUE;
  79   ui.fullscreen = FALSE;
  80
  81   ui.allow_xinput = TRUE;
  82   ui.layerbox_length = 0;
  83
  84   if (argc > 2 || (argc == 2 && argv[1][0] == '-')) {
  85     printf("Invalid command line parameters.\n"
  86            "Usage: %s [filename.xoj]\n", argv[0]);
  87     gtk_exit(0);
  88   }
  89
  90   undo = NULL; redo = NULL;
  91   journal.pages = NULL;
  92   bgpdf.status = STATUS_NOT_INIT;
  93
  94   new_journal();
  95
  96   ui.cur_item_type = ITEM_NONE;
  97   ui.cur_item = NULL;
  98   ui.cur_path.coords = NULL;
  99   ui.cur_path_storage_alloc = 0;
 100   ui.cur_path.ref_count = 1;
 101   ui.toolno = TOOL_PEN;
 102   ui.cur_brush = ui.brushes + TOOL_PEN;
 103   ui.ruler = FALSE;
 104   ui.selection = NULL;
 105   ui.cursor = NULL;
 106
 107   ui.brushes[TOOL_PEN].color_no = COLOR_BLACK;
 108   ui.brushes[TOOL_ERASER].color_no = COLOR_WHITE;
 109   ui.brushes[TOOL_HIGHLIGHTER].color_no = COLOR_YELLOW;
 110   for (i=0; i < NUM_STROKE_TOOLS; i++) {
 111     b = ui.brushes + i;
 112     b->tool_type = i;
 113     b->color_rgba = predef_colors_rgba[b->color_no];
 114     if (i == TOOL_HIGHLIGHTER) {
 115       b->color_rgba &= HILITER_ALPHA_MASK;
 116     }
 117     b->thickness_no = THICKNESS_MEDIUM;
 118     b->thickness = predef_thickness[i][b->thickness_no];
 119     b->tool_options = 0;
 120     g_memmove(ui.default_brushes+i, ui.brushes+i, sizeof(struct Brush));
 121   }
 122
 123   // initialize various interface elements
 124
 125   gtk_window_set_default_size(GTK_WINDOW (winMain), 720, 480);
 126   update_toolbar_and_menu();
 127   // set up and initialize the canvas
 128
 129   gtk_widget_show (GTK_WIDGET (canvas));
 130   w = GET_COMPONENT("scrolledwindowMain");
 131   gtk_container_add (GTK_CONTAINER (w), GTK_WIDGET (canvas));
 132   gtk_scrolled_window_set_policy(GTK_SCROLLED_WINDOW (w), GTK_POLICY_AUTOMATIC, GTK_POLICY_AUTOMATIC);
 133   gtk_widget_set_events (GTK_WIDGET (canvas), GDK_EXPOSURE_MASK | GDK_POINTER_MOTION_MASK | GDK_BUTTON_MOTION_MASK | GDK_BUTTON_PRESS_MASK | GDK_BUTTON_RELEASE_MASK | GDK_KEY_PRESS_MASK | GDK_ENTER_NOTIFY_MASK | GDK_LEAVE_NOTIFY_MASK);
 134   gtk_widget_set_extension_events(GTK_WIDGET (canvas), GDK_EXTENSION_EVENTS_ALL);
 135   gnome_canvas_set_pixels_per_unit (canvas, ui.zoom);
 136   gnome_canvas_set_center_scroll_region (canvas, TRUE);
 137   gtk_layout_get_hadjustment(GTK_LAYOUT (canvas))->step_increment = 30;
 138   gtk_layout_get_vadjustment(GTK_LAYOUT (canvas))->step_increment = 30;
 139
 140   // set up the page size and canvas size
 141   update_page_stuff();
 142
 143   g_signal_connect ((gpointer) canvas, "button_press_event",
 144                     G_CALLBACK (on_canvas_button_press_event),
 145                     NULL);
 146   g_signal_connect ((gpointer) canvas, "button_release_event",
 147                     G_CALLBACK (on_canvas_button_release_event),
 148                     NULL);
 149   g_signal_connect ((gpointer) canvas, "enter_notify_event",
 150                     G_CALLBACK (on_canvas_enter_notify_event),
 151                     NULL);
 152   g_signal_connect ((gpointer) canvas, "expose_event",
 153                     G_CALLBACK (on_canvas_expose_event),
 154                     NULL);
 155   g_signal_connect ((gpointer) canvas, "key_press_event",
 156                     G_CALLBACK (on_canvas_key_press_event),
 157                     NULL);
 158   g_signal_connect ((gpointer) canvas, "motion_notify_event",
 159                     G_CALLBACK (on_canvas_motion_notify_event),
 160                     NULL);
 161   g_signal_connect ((gpointer) gtk_layout_get_vadjustment(GTK_LAYOUT(canvas)),
 162                     "value-changed", G_CALLBACK (on_vscroll_changed),
 163                     NULL);
 164   g_object_set_data (G_OBJECT (winMain), "canvas", canvas);
 165
 166   screen = gtk_widget_get_screen(winMain);
 167   ui.screen_width = gdk_screen_get_width(screen);
 168   ui.screen_height = gdk_screen_get_height(screen);
 169
 170   ui.saved_toolno = -1;
 171
 172   can_xinput = FALSE;
 173   dev_list = gdk_devices_list();
 174   while (dev_list != NULL) {
 175     device = (GdkDevice *)dev_list->data;
 176     if (device->source != GDK_SOURCE_MOUSE) {
 177       /* get around a GDK bug: map the valuator range CORRECTLY to [0,1] */
 178 #if ENABLE_XINPUT_BUGFIX
 179       gdk_device_set_axis_use(device, 0, GDK_AXIS_IGNORE);
 180       gdk_device_set_axis_use(device, 1, GDK_AXIS_IGNORE);
 181 #endif
 182       gdk_device_set_mode(device, GDK_MODE_SCREEN);
 183       can_xinput = TRUE;
 184     }
 185     else gdk_device_set_mode(device, GDK_MODE_DISABLED);
 186     dev_list = dev_list->next;
 187   }
 188   if (!can_xinput)
 189     gtk_widget_set_sensitive(GET_COMPONENT("optionsUseXInput"), FALSE);
 190
 191   ui.use_xinput = ui.allow_xinput && can_xinput;
 192   ui.antialias_bg = TRUE;
 193   ui.emulate_eraser = FALSE;
 194   ui.progressive_bg = TRUE;
 195
 196   gtk_check_menu_item_set_active(
 197     GTK_CHECK_MENU_ITEM(GET_COMPONENT("optionsUseXInput")), ui.use_xinput);
 198   gtk_check_menu_item_set_active(
 199     GTK_CHECK_MENU_ITEM(GET_COMPONENT("optionsAntialiasBG")), ui.antialias_bg);
 200   gtk_check_menu_item_set_active(
 201     GTK_CHECK_MENU_ITEM(GET_COMPONENT("optionsProgressiveBG")), ui.progressive_bg);
 202   gtk_check_menu_item_set_active(
 203     GTK_CHECK_MENU_ITEM(GET_COMPONENT("optionsEmulateEraser")), ui.emulate_eraser);
 204
 205   hide_unimplemented();
 206
 207   update_undo_redo_enabled();
 208   update_copy_paste_enabled();
 209
 210   // show everything...
 211
 212   gtk_widget_show (winMain);
 213   update_cursor();
 214
 215   // load the MRU
 216
 217   init_mru();
 218
 219   // and finally, open a file specified on the command line
 220   // (moved here because display parameters weren't initialized yet...)
 221
 222   if (argc == 1) return;
 223   set_cursor_busy(TRUE);
 224   if (g_path_is_absolute(argv[1]))
 225     tmpfn = g_strdup(argv[1]);
 226   else {
 227     tmppath = g_get_current_dir();
 228     tmpfn = g_build_filename(tmppath, argv[1], NULL);
 229     g_free(tmppath);
 230   }
 231   success = open_journal(tmpfn);
 232   g_free(tmpfn);
 233   set_cursor_busy(FALSE);
 234   if (!success) {
 235     w = gtk_message_dialog_new(GTK_WINDOW (winMain), GTK_DIALOG_DESTROY_WITH_PARENT,
 236        GTK_MESSAGE_ERROR, GTK_BUTTONS_OK, "Error opening file '%s'", argv[1]);
 237     gtk_dialog_run(GTK_DIALOG(w));
 238     gtk_widget_destroy(w);
 239   }
 240 }
 241
 242
 243 int
 244 main (int argc, char *argv[])
 245 {
 246   gchar *path, *path1, *path2;
 247
 248   gtk_set_locale ();
 249   gtk_init (&argc, &argv);
 250
 251   add_pixmap_directory (PACKAGE_DATA_DIR "/" PACKAGE "/pixmaps");
 252   path = g_path_get_dirname(argv[0]);
 253   path1 = g_build_filename(path, "pixmaps", NULL);
 254   path2 = g_build_filename(path, "..", "pixmaps", NULL);
 255   add_pixmap_directory (path1);
 256   add_pixmap_directory (path2);
 257   add_pixmap_directory (path);
 258   g_free(path);
 259   g_free(path1);
 260   g_free(path2);
 261
 262   /*
 263    * The following code was added by Glade to create one of each component
 264    * (except popup menus), just so that you see something after building
 265    * the project. Delete any components that you don't want shown initially.
 266    */
 267   winMain = create_winMain ();
 268
 269   init_stuff (argc, argv);
 270
 271   gtk_main ();
 272
 273   if (bgpdf.status != STATUS_NOT_INIT) shutdown_bgpdf();
 274   if (bgpdf.status != STATUS_NOT_INIT) end_bgpdf_shutdown();
 275
 276   save_mru_list();
 277
 278   return 0;
 279 }
 280