1 files changed, 348 insertions, 0 deletions
diff --git a/ps/ggvutils.c b/ps/ggvutils.c
new file mode 100644
index 0000000..c79ec04
--- /dev/null
+++ b/ps/ggvutils.c
@@ -0,0 +1,348 @@
+/*
+ * ggv-utils.c: misc utility functions
+ *
+ * Copyright 2002 - 2005 The Free Software Foundation
+ *
+ * Author: Jaka Mocnik  <jaka@gnu.org>
+ *
+ * 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 of the License, 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., 675 Mass Ave, Cambridge, MA 02139, USA.
+ */
+
+#include "config.h"
+#include <math.h>
+#include <ctype.h>
+#include <sys/stat.h>
+
+#include <gnome.h>
+#include <gtk/gtkstock.h>
+#include <gtk/gtkiconfactory.h>
+
+#include <libgnomevfs/gnome-vfs-utils.h>
+
+#include "ggvutils.h"
+
+typedef struct {
+  char *stock_id;
+  char *name;
+} GgvStockIcon;
+
+GtkGSPaperSize ggv_paper_sizes[] = {
+  {N_("BBox"), 0, 0},
+  {N_("Letter"), 612, 792,},
+  {N_("Tabloid"), 792, 1224,},
+  {N_("Ledger"), 1224, 792,},
+  {N_("Legal"), 612, 1008,},
+  {N_("Statement"), 396, 612,},
+  {N_("Executive"), 540, 720,},
+  {N_("A0"), 2380, 3368,},
+  {N_("A1"), 1684, 2380,},
+  {N_("A2"), 1190, 1684,},
+  {N_("A3"), 842, 1190,},
+  {N_("A4"), 595, 842,},
+  {N_("A5"), 420, 595,},
+  {N_("B4"), 729, 1032,},
+  {N_("B5"), 516, 729,},
+  {N_("Folio"), 612, 936,},
+  {N_("Quarto"), 610, 780,},
+  {N_("10x14"), 720, 1008,},
+  {NULL, 0, 0}
+};
+
+const gfloat ggv_unit_factors[] = {
+  1.0,
+  25.4,
+  2.54,
+  72.0
+};
+
+const gchar *ggv_orientation_labels[] = {
+  N_("Portrait"),
+  N_("Landscape"),
+  N_("Upside Down"),
+  N_("Seascape"),
+  NULL,
+};
+
+const gint ggv_max_orientation_labels =
+  (sizeof(ggv_orientation_labels) / sizeof(gchar *)) - 2;
+
+const gchar *ggv_unit_labels[] = {
+  N_("inch"),
+  N_("mm"),
+  N_("cm"),
+  N_("point"),
+  NULL
+};
+
+const gint ggv_max_unit_labels =
+  (sizeof(ggv_unit_labels) / sizeof(gchar *)) - 2;
+
+gfloat ggv_zoom_levels[] = {
+  1.0 / 6.0, 1.0 / 5.0, 1.0 / 4.0, 1.0 / 3.0, 1.0 / 2.0, 3.0 / 4.0, 1.0,
+  3.0 / 2.0, 2.0, 3.0, 4.0, 5.0, 6.0
+};
+
+const gchar *ggv_zoom_level_names[] = {
+  "1:6", "1:5", "1:4", "1:3",
+  "1:2", "3:4", "1:1", "3:2",
+  "2:1", "3:1", "4:1", "5:1",
+  "6:1",
+};
+
+const gint ggv_max_zoom_levels = (sizeof(ggv_zoom_levels) / sizeof(gfloat)) - 1;
+
+const gchar *ggv_auto_fit_modes[] = {
+  N_("None"), N_("Fit to page width"), N_("Fit to page size")
+};
+
+const gint ggv_max_auto_fit_modes =
+  (sizeof(ggv_auto_fit_modes) / sizeof(gchar *)) - 1;
+
+gint
+ggv_zoom_index_from_float(gfloat zoom_level)
+{
+  int i;
+
+  for(i = 0; i <= ggv_max_zoom_levels; i++) {
+    float this, epsilon;
+
+    /* if we're close to a zoom level */
+    this = ggv_zoom_levels[i];
+    epsilon = this * 0.01;
+
+    if(zoom_level < this + epsilon)
+      return i;
+  }
+
+  return ggv_max_zoom_levels;
+}
+
+gfloat
+ggv_zoom_level_from_index(gint index)
+{
+  if(index > ggv_max_zoom_levels)
+    index = ggv_max_zoom_levels;
+
+  return ggv_zoom_levels[index];
+}
+
+GSList *
+ggv_split_string(const gchar * string, const gchar * delimiter)
+{
+  const gchar *ptr = string;
+  int pos = 0, escape = 0;
+  char buffer[BUFSIZ];
+  GSList *list = NULL;
+
+  g_return_val_if_fail(string != NULL, NULL);
+  g_return_val_if_fail(delimiter != NULL, NULL);
+
+  while(*ptr) {
+    char c = *ptr++;
+    const gchar *d;
+    int found = 0;
+
+    if(pos >= BUFSIZ) {
+      g_warning("string too long, aborting");
+      return list;
+    }
+
+    if(escape) {
+      buffer[pos++] = c;
+      escape = 0;
+      continue;
+    }
+
+    if(c == '\\') {
+      escape = 1;
+      continue;
+    }
+
+    for(d = delimiter; *d; d++) {
+      if(c == *d) {
+        buffer[pos++] = 0;
+        list = g_slist_prepend(list, g_strdup(buffer));
+        pos = 0;
+        found = 1;
+        break;
+      }
+    }
+
+    if(!found)
+      buffer[pos++] = c;
+  }
+
+  buffer[pos++] = 0;
+  list = g_slist_prepend(list, g_strdup(buffer));
+
+  return list;
+}
+
+gint
+ggv_get_index_of_string(gchar * string, gchar ** strings)
+{
+  guint idx = 0;
+
+  while(strings[idx] != NULL) {
+    if(strcmp(strings[idx], string) == 0)
+      return idx;
+    idx++;
+  }
+
+  return -1;
+}
+
+/* Quote filename for system call */
+gchar *
+ggv_quote_filename(const gchar * str)
+{
+  return g_shell_quote(str);
+}
+
+/* escapes filename to form a proper URI: works conservatively - anything
+   except [a-zA-Z0-9_] will be escaped with a %XX escape sequence where
+   XX is the hex value of the char. */
+gchar *
+ggv_filename_to_uri(const gchar * fname)
+{
+  gchar *full_path, *ret_val;
+
+  if(*fname != '/') {
+    gchar *cwd;
+    /* relative file name - we will have to absolutize it */
+    cwd = g_get_current_dir();
+    full_path = g_strconcat(cwd, "/", fname, NULL);
+  }
+  else
+    full_path = NULL;
+  ret_val = gnome_vfs_get_uri_from_local_path(full_path ? full_path : fname);
+  if(full_path)
+    g_free(full_path);
+  return ret_val;
+}
+
+/* If file exists and is a regular file then return its length, else -1 */
+gint
+ggv_file_length(const gchar * filename)
+{
+  struct stat stat_rec;
+
+  if(filename && (stat(filename, &stat_rec) == 0)
+     && S_ISREG(stat_rec.st_mode))
+    return stat_rec.st_size;
+  else
+    return -1;
+}
+
+/* Test if file exists, is a regular file and its length is > 0 */
+gboolean
+ggv_file_readable(const char *filename)
+{
+  return (ggv_file_length(filename) > 0);
+}
+
+/* Set a tooltip for a widget */
+void
+ggv_set_tooltip(GtkWidget * w, const gchar * tip)
+{
+  GtkTooltips *t = gtk_tooltips_new();
+
+  gtk_tooltips_set_tip(t, w, tip, NULL);
+}
+
+gfloat
+ggv_compute_zoom(gint zoom_spec)
+{
+  return pow(1.2, zoom_spec);   /* The Knuth magstep formula rules */
+}
+
+gint
+ggv_compute_spec(gfloat zoom)
+{
+  zoom = MAX(0.02, zoom);
+  zoom = MIN(10.0, zoom);
+
+  zoom = log(zoom) / log(1.2);
+  return (gint) rint(zoom);
+}
+
+void
+ggv_raise_and_focus_widget(GtkWidget * widget)
+{
+  g_assert(GTK_WIDGET_REALIZED(widget));
+  gdk_window_raise(widget->window);
+  gtk_widget_grab_focus(widget);
+}
+
+void
+ggv_get_window_size(GtkWidget * widget, gint * width, gint * height)
+{
+  *width = widget->allocation.width;
+  *height = widget->allocation.height;
+}
+
+static GgvStockIcon items[] = {
+  {GGV_CLEAR_ALL, GNOMEICONDIR "/ggv/clearall.xpm"},
+  {GGV_TOGGLE_ALL, GNOMEICONDIR "/ggv/toggleall.xpm"},
+  {GGV_TOGGLE_EVEN, GNOMEICONDIR "/ggv/toggleeven.xpm"},
+  {GGV_TOGGLE_ODD, GNOMEICONDIR "/ggv/toggleodd.xpm"},
+  {GGV_FIT_WIDTH, GNOMEICONDIR "/ggv/fitwidth.png"},
+  {GGV_ZOOM, GNOMEICONDIR "/ggv/zoom.xpm"}
+};
+
+static void
+ggv_register_stock_icons(GtkIconFactory * factory)
+{
+  gint i;
+  GtkIconSource *source;
+
+  source = gtk_icon_source_new();
+
+  for(i = 0; i < G_N_ELEMENTS(items); ++i) {
+    GtkIconSet *icon_set;
+
+    if(!g_file_test(items[i].name, G_FILE_TEST_EXISTS)) {
+      g_warning(_("Unable to load ggv stock icon '%s'\n"), items[i].name);
+      icon_set = gtk_icon_factory_lookup_default(GTK_STOCK_MISSING_IMAGE);
+      gtk_icon_factory_add(factory, items[i].stock_id, icon_set);
+      continue;
+    }
+
+    gtk_icon_source_set_filename(source, items[i].name);
+
+    icon_set = gtk_icon_set_new();
+    gtk_icon_set_add_source(icon_set, source);
+    gtk_icon_factory_add(factory, items[i].stock_id, icon_set);
+    gtk_icon_set_unref(icon_set);
+  }
+  gtk_icon_source_free(source);
+}
+
+void
+ggv_init_stock_icons(void)
+{
+  GtkIconFactory *factory;
+  static gboolean initialized = FALSE;
+
+  if(initialized)
+    return;
+  initialized = TRUE;
+
+  factory = gtk_icon_factory_new();
+  gtk_icon_factory_add_default(factory);
+  ggv_register_stock_icons(factory);
+
+  g_object_unref(factory);
+}