/*
    This file is part of darktable,
    copyright (c) 2009--2011 johannes hanika, henrik andersson.
    copyright (c) 2012 Jose Carlos Garcia Sogo

    darktable 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 3 of the License, or
    (at your option) any later version.

    darktable 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 darktable.  If not, see <http://www.gnu.org/licenses/>.
*/
#include "libs/collect.h"
#include "common/collection.h"
#include "common/darktable.h"
#include "common/debug.h"
#include "common/film.h"
#include "common/metadata.h"
#include "common/utility.h"
#include "control/conf.h"
#include "control/control.h"
#include "control/jobs.h"
#include "dtgtk/button.h"
#include "gui/gtk.h"
#include "libs/lib.h"
#include "libs/lib_api.h"
#include "views/view.h"

DT_MODULE(1)

#define MAX_RULES 10

#define PARAM_STRING_SIZE 256 // FIXME: is this enough !?

typedef struct dt_lib_collect_rule_t
{
  int num;
  GtkWidget *hbox;
  GtkComboBox *combo;
  GtkWidget *text;
  GtkWidget *button;
  gboolean typing;
} dt_lib_collect_rule_t;

typedef struct dt_lib_collect_t
{
  dt_lib_collect_rule_t rule[MAX_RULES];
  int active_rule;
  int nb_rules;

  GtkTreeView *view;
  int view_rule;

  GtkTreeModel *treefilter;
  GtkTreeModel *listfilter;
  GtkScrolledWindow *scrolledwindow;

  GtkScrolledWindow *sw2;

  struct dt_lib_collect_params_t *params;
} dt_lib_collect_t;

typedef struct dt_lib_collect_params_rule_t
{
    uint32_t item : 16;
    uint32_t mode : 16;
    char string[PARAM_STRING_SIZE];
} dt_lib_collect_params_rule_t;

typedef struct dt_lib_collect_params_t
{
  uint32_t rules;
  dt_lib_collect_params_rule_t rule[MAX_RULES];
} dt_lib_collect_params_t;

typedef enum dt_lib_collect_cols_t
{
  DT_LIB_COLLECT_COL_TEXT = 0,
  DT_LIB_COLLECT_COL_ID,
  DT_LIB_COLLECT_COL_TOOLTIP,
  DT_LIB_COLLECT_COL_PATH,
  DT_LIB_COLLECT_COL_VISIBLE,
  DT_LIB_COLLECT_COL_UNREACHABLE,
  DT_LIB_COLLECT_NUM_COLS
} dt_lib_collect_cols_t;

typedef struct _image_t
{
  int id;
  int filmid;
  gchar *path;
  gchar *filename;
  int exists;
} _image_t;

static void _lib_collect_gui_update(dt_lib_module_t *self);
static void _lib_folders_update_collection(const gchar *filmroll);
static void entry_insert_text(GtkWidget *entry, gchar *new_text, gint new_length, gpointer *position,
                          dt_lib_collect_rule_t *d);
static void entry_changed(GtkEntry *entry, dt_lib_collect_rule_t *dr);
static void row_activated(GtkTreeView *view, GtkTreePath *path, GtkTreeViewColumn *col, dt_lib_collect_t *d);

const char *name(dt_lib_module_t *self)
{
  return _("collect images");
}

void init_presets(dt_lib_module_t *self)
{
}

/* Update the params struct with active ruleset */
static void _lib_collect_update_params(dt_lib_collect_t *d)
{
  /* reset params */
  dt_lib_collect_params_t *p = d->params;
  memset(p, 0, sizeof(dt_lib_collect_params_t));

  /* for each active rule set update params */
  const int _a = dt_conf_get_int("plugins/lighttable/collect/num_rules") - 1;
  const int active = CLAMP(_a, 0, (MAX_RULES - 1));
  char confname[200] = { 0 };
  for(int i = 0; i <= active; i++)
  {
    /* get item */
    snprintf(confname, sizeof(confname), "plugins/lighttable/collect/item%1d", i);
    p->rule[i].item = dt_conf_get_int(confname);

    /* get mode */
    snprintf(confname, sizeof(confname), "plugins/lighttable/collect/mode%1d", i);
    p->rule[i].mode = dt_conf_get_int(confname);

    /* get string */
    snprintf(confname, sizeof(confname), "plugins/lighttable/collect/string%1d", i);
    gchar *string = dt_conf_get_string(confname);
    if(string != NULL)
    {
      snprintf(p->rule[i].string, PARAM_STRING_SIZE, "%s", string);
      g_free(string);
    }

    // fprintf(stderr,"[%i] %d,%d,%s\n",i, p->rule[i].item, p->rule[i].mode,  p->rule[i].string);
  }

  p->rules = active + 1;
}

void *get_params(dt_lib_module_t *self, int *size)
{
  _lib_collect_update_params(self->data);

  /* allocate a copy of params to return, freed by caller */
  *size = sizeof(dt_lib_collect_params_t);
  void *p = malloc(*size);
  memcpy(p, ((dt_lib_collect_t *)self->data)->params, *size);
  return p;
}

int set_params(dt_lib_module_t *self, const void *params, int size)
{
  /* update conf settings from params */
  dt_lib_collect_params_t *p = (dt_lib_collect_params_t *)params;
  char confname[200] = { 0 };

  for(uint32_t i = 0; i < p->rules; i++)
  {
    /* set item */
    snprintf(confname, sizeof(confname), "plugins/lighttable/collect/item%1d", i);
    dt_conf_set_int(confname, p->rule[i].item);

    /* set mode */
    snprintf(confname, sizeof(confname), "plugins/lighttable/collect/mode%1d", i);
    dt_conf_set_int(confname, p->rule[i].mode);

    /* set string */
    snprintf(confname, sizeof(confname), "plugins/lighttable/collect/string%1d", i);
    dt_conf_set_string(confname, p->rule[i].string);
  }

  /* set number of rules */
  g_strlcpy(confname, "plugins/lighttable/collect/num_rules", sizeof(confname));
  dt_conf_set_int(confname, p->rules);

  /* update internal params */
  _lib_collect_update_params(self->data);

  /* update ui */
  _lib_collect_gui_update(self);

  /* update view */
  dt_collection_update_query(darktable.collection);

  return 0;
}


uint32_t views(dt_lib_module_t *self)
{
  return DT_VIEW_LIGHTTABLE | DT_VIEW_MAP | DT_VIEW_PRINT;
}

uint32_t container(dt_lib_module_t *self)
{
  return DT_UI_CONTAINER_PANEL_LEFT_CENTER;
}

static void view_popup_menu_onSearchFilmroll(GtkWidget *menuitem, gpointer userdata)
{
  GtkTreeView *treeview = GTK_TREE_VIEW(userdata);
  GtkWidget *win = dt_ui_main_window(darktable.gui->ui);
  GtkWidget *filechooser;

  GtkTreeSelection *selection;
  GtkTreeIter iter, child;
  GtkTreeModel *model;

  gchar *tree_path = NULL;
  gchar *new_path = NULL;

  filechooser = gtk_file_chooser_dialog_new(
      _("search filmroll"), GTK_WINDOW(win), GTK_FILE_CHOOSER_ACTION_SELECT_FOLDER, _("_cancel"),
      GTK_RESPONSE_CANCEL, _("_open"), GTK_RESPONSE_ACCEPT, (char *)NULL);

  gtk_file_chooser_set_select_multiple(GTK_FILE_CHOOSER(filechooser), FALSE);

  model = gtk_tree_view_get_model(treeview);
  selection = gtk_tree_view_get_selection(GTK_TREE_VIEW(treeview));
  gtk_tree_selection_get_selected(selection, &model, &iter);
  child = iter;
  gtk_tree_model_iter_parent(model, &iter, &child);
  gtk_tree_model_get(model, &child, DT_LIB_COLLECT_COL_PATH, &tree_path, -1);

  if(tree_path != NULL)
    gtk_file_chooser_set_current_folder(GTK_FILE_CHOOSER(filechooser), tree_path);
  else
    goto error;

  // run the dialog
  if(gtk_dialog_run(GTK_DIALOG(filechooser)) == GTK_RESPONSE_ACCEPT)
  {
    gint id = -1;
    sqlite3_stmt *stmt;
    gchar *query = NULL;

    gchar *uri = NULL;
    uri = gtk_file_chooser_get_uri(GTK_FILE_CHOOSER(filechooser));
    new_path = g_filename_from_uri(uri, NULL, NULL);
    g_free(uri);
    if(new_path)
    {
      gchar *old = NULL;
      query = dt_util_dstrcat(query, "SELECT id, folder FROM main.film_rolls WHERE folder LIKE '%s%%'", tree_path);
      DT_DEBUG_SQLITE3_PREPARE_V2(dt_database_get(darktable.db), query, -1, &stmt, NULL);
      g_free(query);
      query = NULL;

      while(sqlite3_step(stmt) == SQLITE_ROW)
      {
        id = sqlite3_column_int(stmt, 0);
        old = (gchar *)sqlite3_column_text(stmt, 1);

        query = NULL;
        query = dt_util_dstrcat(query, "UPDATE main.film_rolls SET folder=?1 WHERE id=?2");

        gchar trailing[1024] = { 0 };
        gchar final[1024] = { 0 };

        if(g_strcmp0(old, tree_path))
        {
          g_snprintf(trailing, sizeof(trailing), "%s", old + strlen(tree_path) + 1);
          g_snprintf(final, sizeof(final), "%s/%s", new_path, trailing);
        }
        else
        {
          g_snprintf(final, sizeof(final), "%s", new_path);
        }

        sqlite3_stmt *stmt2;
        DT_DEBUG_SQLITE3_PREPARE_V2(dt_database_get(darktable.db), query, -1, &stmt2, NULL);
        DT_DEBUG_SQLITE3_BIND_TEXT(stmt2, 1, final, -1, SQLITE_STATIC);
        DT_DEBUG_SQLITE3_BIND_INT(stmt2, 2, id);
        sqlite3_step(stmt2);
        sqlite3_finalize(stmt2);
      }
      sqlite3_finalize(stmt);
      g_free(query);

      /* reset filter so that view isn't empty */
      dt_view_filter_reset(darktable.view_manager, FALSE);

      /* update collection to view missing filmroll */
      _lib_folders_update_collection(new_path);

      dt_control_signal_raise(darktable.signals, DT_SIGNAL_FILMROLLS_CHANGED);
    }
    else
      goto error;
  }
  g_free(tree_path);
  g_free(new_path);
  gtk_widget_destroy(filechooser);
  return;

error:
  /* Something wrong happened */
  gtk_widget_destroy(filechooser);
  dt_control_log(_("problem selecting new path for the filmroll in %s"), tree_path);

  g_free(tree_path);
  g_free(new_path);
}

static void view_popup_menu_onRemove(GtkWidget *menuitem, gpointer userdata)
{
  GtkTreeView *treeview = GTK_TREE_VIEW(userdata);

  GtkTreeSelection *selection;
  GtkTreeIter iter;
  GtkTreeModel *model;

  gchar *filmroll_path = NULL;
  gchar *fullq = NULL;

  /* Get info about the filmroll (or parent) selected */
  model = gtk_tree_view_get_model(treeview);
  selection = gtk_tree_view_get_selection(GTK_TREE_VIEW(treeview));
  gtk_tree_selection_get_selected(selection, &model, &iter);
  gtk_tree_model_get(model, &iter, DT_LIB_COLLECT_COL_PATH, &filmroll_path, -1);

  /* Clean selected images, and add to the table those which are going to be deleted */
  DT_DEBUG_SQLITE3_EXEC(dt_database_get(darktable.db), "DELETE FROM main.selected_images", NULL, NULL, NULL);

  fullq = dt_util_dstrcat(fullq, "INSERT INTO main.selected_images SELECT id FROM main.images WHERE film_id IN "
                                 "(SELECT id FROM main.film_rolls WHERE folder LIKE '%s%%')",
                          filmroll_path);
  DT_DEBUG_SQLITE3_EXEC(dt_database_get(darktable.db), fullq, NULL, NULL, NULL);

  dt_control_remove_images();
}

static void view_popup_menu(GtkWidget *treeview, GdkEventButton *event, dt_lib_collect_t *d)
{
  GtkWidget *menu, *menuitem;

  menu = gtk_menu_new();

  menuitem = gtk_menu_item_new_with_label(_("search filmroll..."));
  g_signal_connect(menuitem, "activate", (GCallback)view_popup_menu_onSearchFilmroll, treeview);
  gtk_menu_shell_append(GTK_MENU_SHELL(menu), menuitem);

  menuitem = gtk_menu_item_new_with_label(_("remove..."));
  gtk_menu_shell_append(GTK_MENU_SHELL(menu), menuitem);
  g_signal_connect(menuitem, "activate", (GCallback)view_popup_menu_onRemove, treeview);

  gtk_widget_show_all(menu);

#if GTK_CHECK_VERSION(3, 22, 0)
  gtk_menu_popup_at_pointer(GTK_MENU(menu), (GdkEvent *)event);
#else
  /* Note: event can be NULL here when called from view_onPopupMenu;
   *  gdk_event_get_time() accepts a NULL argument */
  gtk_menu_popup(GTK_MENU(menu), NULL, NULL, NULL, NULL, (event != NULL) ? event->button : 0,
                 gdk_event_get_time((GdkEvent *)event));
#endif
}

static gboolean view_onButtonPressed(GtkWidget *treeview, GdkEventButton *event, dt_lib_collect_t *d)
{
  if(d->view_rule != DT_COLLECTION_PROP_FOLDERS) return FALSE;
  /* single click with the right mouse button? */
  if(event->type == GDK_BUTTON_PRESS && event->button == 3)
  {
    GtkTreeSelection *selection;

    selection = gtk_tree_view_get_selection(GTK_TREE_VIEW(treeview));

    if(gtk_tree_selection_count_selected_rows(selection) <= 1)
    {
      GtkTreePath *path;

      /* Get tree path for row that was clicked */
      if(gtk_tree_view_get_path_at_pos(GTK_TREE_VIEW(treeview), (gint)event->x, (gint)event->y, &path, NULL,
                                       NULL, NULL))
      {
        gtk_tree_selection_unselect_all(selection);
        gtk_tree_selection_select_path(selection, path);
        gtk_tree_path_free(path);
      }
    }
    view_popup_menu(treeview, event, d);

    return TRUE; /* we handled this */
  }
  return FALSE; /* we did not handle this */
}

static gboolean view_onPopupMenu(GtkWidget *treeview, dt_lib_collect_t *d)
{
  if(d->view_rule != DT_COLLECTION_PROP_FOLDERS) return FALSE;

  view_popup_menu(treeview, NULL, d);

  return TRUE; /* we handled this */
}

static dt_lib_collect_t *get_collect(dt_lib_collect_rule_t *r)
{
  dt_lib_collect_t *d = (dt_lib_collect_t *)(((char *)r) - r->num * sizeof(dt_lib_collect_rule_t));
  return d;
}

static gboolean list_select(GtkTreeModel *model, GtkTreePath *path, GtkTreeIter *iter, gpointer data)
{
  dt_lib_collect_rule_t *dr = (dt_lib_collect_rule_t *)data;
  dt_lib_collect_t *d = get_collect(dr);
  gchar *str = NULL;

  gtk_tree_model_get(model, iter, DT_LIB_COLLECT_COL_PATH, &str, -1);

  gchar *haystack = g_utf8_strdown(str, -1);
  gchar *needle = g_utf8_strdown(gtk_entry_get_text(GTK_ENTRY(dr->text)), -1);

  if(strcmp(haystack, needle) == 0)
  {
    gtk_tree_selection_select_path(gtk_tree_view_get_selection(d->view), path);
  }

  g_free(haystack);
  g_free(needle);
  g_free(str);

  return FALSE;
}

static gboolean tree_expand(GtkTreeModel *model, GtkTreePath *path, GtkTreeIter *iter, gpointer data)
{
  dt_lib_collect_rule_t *dr = (dt_lib_collect_rule_t *)data;
  dt_lib_collect_t *d = get_collect(dr);
  gchar *str = NULL;
  gchar *txt = NULL;
  gboolean startwildcard = FALSE;

  gtk_tree_model_get(model, iter, DT_LIB_COLLECT_COL_PATH, &str, DT_LIB_COLLECT_COL_TEXT, &txt, -1);

  gchar *haystack = g_utf8_strdown(str, -1);
  gchar *needle = g_utf8_strdown(gtk_entry_get_text(GTK_ENTRY(dr->text)), -1);
  gchar *txt2 = g_utf8_strdown(txt, -1);

  if(g_str_has_prefix(needle, "%")) startwildcard = TRUE;
  if(g_str_has_suffix(needle, "%")) needle[strlen(needle) - 1] = '\0';
  if(g_str_has_suffix(haystack, "%")) haystack[strlen(haystack) - 1] = '\0';
  if(gtk_combo_box_get_active(dr->combo) == DT_COLLECTION_PROP_TAG)
  {
    if(g_str_has_suffix(needle, "|")) needle[strlen(needle) - 1] = '\0';
    if(g_str_has_suffix(haystack, "|")) haystack[strlen(haystack) - 1] = '\0';
  }
  else if(gtk_combo_box_get_active(dr->combo) == DT_COLLECTION_PROP_FOLDERS)
  {
    if(g_str_has_suffix(needle, "/")) needle[strlen(needle) - 1] = '\0';
    if(g_str_has_suffix(haystack, "/")) haystack[strlen(haystack) - 1] = '\0';
  }

  if(dr->typing && g_strrstr(txt2, needle) != NULL)
  {
    gtk_tree_view_expand_to_path(d->view, path);
  }

  if(strlen(needle)==0)
  {
    //nothing to do, we keep the tree collapsed
  }
  else if(strcmp(haystack, needle) == 0)
  {
    gtk_tree_view_expand_to_path(d->view, path);
    gtk_tree_selection_select_path(gtk_tree_view_get_selection(d->view), path);
  }
  else if(startwildcard && g_strrstr(haystack, needle+1) != NULL)
  {
    gtk_tree_view_expand_to_path(d->view, path);
  }
  else if(g_str_has_prefix(haystack, needle))
  {
    gtk_tree_view_expand_to_path(d->view, path);
  }

  g_free(haystack);
  g_free(needle);
  g_free(txt2);
  g_free(str);
  g_free(txt);

  return FALSE;
}

static gboolean list_match_string(GtkTreeModel *model, GtkTreePath *path, GtkTreeIter *iter, gpointer data)
{
  dt_lib_collect_rule_t *dr = (dt_lib_collect_rule_t *)data;
  gchar *str = NULL;
  gboolean visible;

  gtk_tree_model_get(model, iter, DT_LIB_COLLECT_COL_PATH, &str, -1);

  gchar *haystack = g_utf8_strdown(str, -1);
  gchar *needle = g_utf8_strdown(gtk_entry_get_text(GTK_ENTRY(dr->text)), -1);
  if(g_str_has_suffix(needle, "%")) needle[strlen(needle) - 1] = '\0';

  int property = gtk_combo_box_get_active(dr->combo);
  if(property == DT_COLLECTION_PROP_APERTURE || property == DT_COLLECTION_PROP_FOCAL_LENGTH
     || property == DT_COLLECTION_PROP_ISO)
  {
    // handle of numeric value, which can have some operator before the text
    visible = TRUE;
    gchar *operator, *number, *number2;
    dt_collection_split_operator_number(needle, &number, &number2, &operator);
    if(number)
    {
      float nb1 = g_strtod(number, NULL);
      float nb2 = g_strtod(haystack, NULL);
      if(operator&& strcmp(operator, ">") == 0)
      {
        visible = (nb2 > nb1);
      }
      else if(operator&& strcmp(operator, ">=") == 0)
      {
        visible = (nb2 >= nb1);
      }
      else if(operator&& strcmp(operator, "<") == 0)
      {
        visible = (nb2 < nb1);
      }
      else if(operator&& strcmp(operator, "<=") == 0)
      {
        visible = (nb2 <= nb1);
      }
      else if(operator&& strcmp(operator, "<>") == 0)
      {
        visible = (nb1 != nb2);
      }
      else if(operator&& number2 && strcmp(operator, "[]") == 0)
      {
        float nb3 = g_strtod(number2, NULL);
        visible = (nb2 >= nb1 && nb2 <= nb3);
      }
      else
      {
        visible = (nb1 == nb2);
      }
    }
    g_free(operator);
    g_free(number);
    g_free(number2);
  }
  else
  {
    if(g_str_has_prefix(needle, "%"))
      visible = (g_strrstr(haystack, needle + 1) != NULL);
    else
      visible = (g_strrstr(haystack, needle) != NULL);
  }

  g_free(haystack);
  g_free(needle);

  g_free(str);

  gtk_list_store_set(GTK_LIST_STORE(model), iter, DT_LIB_COLLECT_COL_VISIBLE, visible, -1);
  return FALSE;
}

static gboolean tree_match_string(GtkTreeModel *model, GtkTreePath *path, GtkTreeIter *iter, gpointer data)
{
  dt_lib_collect_rule_t *dr = (dt_lib_collect_rule_t *)data;
  gchar *str = NULL;
  gboolean cur_state, visible;

  gtk_tree_model_get(model, iter, DT_LIB_COLLECT_COL_PATH, &str, DT_LIB_COLLECT_COL_VISIBLE, &cur_state, -1);

  if(dr->typing == FALSE && !cur_state)
  {
    visible = TRUE;
  }
  else
  {
    gchar *haystack = g_utf8_strdown(str, -1),
          *needle = g_utf8_strdown(gtk_entry_get_text(GTK_ENTRY(dr->text)), -1);
    visible = (g_strrstr(haystack, needle) != NULL);
    g_free(haystack);
    g_free(needle);
  }

  g_free(str);

  gtk_tree_store_set(GTK_TREE_STORE(model), iter, DT_LIB_COLLECT_COL_VISIBLE, visible, -1);
  return FALSE;
}

static gboolean tree_reveal_func(GtkTreeModel *model, GtkTreePath *path, GtkTreeIter *iter, gpointer data)
{
  gboolean state;
  GtkTreeIter parent, child = *iter;

  gtk_tree_model_get(model, iter, DT_LIB_COLLECT_COL_VISIBLE, &state, -1);
  if(!state) return FALSE;

  while(gtk_tree_model_iter_parent(model, &parent, &child))
  {
    gtk_tree_model_get(model, &parent, DT_LIB_COLLECT_COL_VISIBLE, &state, -1);
    gtk_tree_store_set(GTK_TREE_STORE(model), &parent, DT_LIB_COLLECT_COL_VISIBLE, TRUE, -1);
    child = parent;
  }

  return FALSE;
}

static void tree_set_visibility(GtkTreeModel *model, gpointer data)
{
  gtk_tree_model_foreach(model, (GtkTreeModelForeachFunc)tree_match_string, data);

  gtk_tree_model_foreach(model, (GtkTreeModelForeachFunc)tree_reveal_func, NULL);
}

static void _lib_folders_update_collection(const gchar *filmroll)
{

  gchar *complete_query = NULL;

  // remove from selected images where not in this query.
  sqlite3_stmt *stmt = NULL;
  const gchar *cquery = dt_collection_get_query(darktable.collection);
  // complete_query = NULL;
  if(cquery && cquery[0] != '\0')
  {
    complete_query
        = dt_util_dstrcat(complete_query, "DELETE FROM main.selected_images WHERE imgid NOT IN (%s)", cquery);
    DT_DEBUG_SQLITE3_PREPARE_V2(dt_database_get(darktable.db), complete_query, -1, &stmt, NULL);
    DT_DEBUG_SQLITE3_BIND_INT(stmt, 1, 0);
    DT_DEBUG_SQLITE3_BIND_INT(stmt, 2, -1);
    sqlite3_step(stmt);
    sqlite3_finalize(stmt);

    /* free allocated strings */
    g_free(complete_query);
  }

  /* raise signal of collection change, only if this is an original */
  if(!darktable.collection->clone) dt_control_signal_raise(darktable.signals, DT_SIGNAL_COLLECTION_CHANGED);
}

static void set_properties(dt_lib_collect_rule_t *dr)
{
  int property = gtk_combo_box_get_active(dr->combo);
  const gchar *text = gtk_entry_get_text(GTK_ENTRY(dr->text));

  char confname[200] = { 0 };
  snprintf(confname, sizeof(confname), "plugins/lighttable/collect/string%1d", dr->num);
  dt_conf_set_string(confname, text);
  snprintf(confname, sizeof(confname), "plugins/lighttable/collect/item%1d", dr->num);
  dt_conf_set_int(confname, property);
}

static GtkTreeModel *_create_filtered_model(GtkTreeModel *model, dt_lib_collect_rule_t *dr)
{
  GtkTreeModel *filter = NULL;
  GtkTreePath *path = NULL;

  if(gtk_combo_box_get_active(dr->combo) == DT_COLLECTION_PROP_FOLDERS)
  {
    // we search a common path to all the folders
    // we'll use it as root
    GtkTreeIter child, iter;
    int level = 0;

    while(gtk_tree_model_iter_n_children(model, level > 0 ? &iter : NULL) > 0)
    {
      if(level > 0)
      {
        sqlite3_stmt *stmt = NULL;
        gchar *pth = NULL;
        int id = -1;
        // Check if this path also matches a filmroll
        gtk_tree_model_get(model, &iter, DT_LIB_COLLECT_COL_PATH, &pth, -1);
        DT_DEBUG_SQLITE3_PREPARE_V2(dt_database_get(darktable.db),
                                    "SELECT id FROM main.film_rolls WHERE folder LIKE ?1", -1, &stmt, NULL);
        DT_DEBUG_SQLITE3_BIND_TEXT(stmt, 1, pth, -1, SQLITE_TRANSIENT);
        if(sqlite3_step(stmt) == SQLITE_ROW) id = sqlite3_column_int(stmt, 0);
        sqlite3_finalize(stmt);

        g_free(pth);

        if(id != -1)
        {
          // we go back to the parent, in order to show this folder
          if(!gtk_tree_model_iter_parent(model, &child, &iter)) level = 0;
          iter = child;
          break;
        }
      }
      if(gtk_tree_model_iter_n_children(model, level > 0 ? &iter : NULL) != 1) break;

      gtk_tree_model_iter_children(model, &child, level > 0 ? &iter : NULL);
      iter = child;
      level++;
    }

    if(level > 0) path = gtk_tree_model_get_path(model, &iter);
  }

  // Create filter and set virtual root
  filter = gtk_tree_model_filter_new(model, path);
  gtk_tree_path_free(path);

  gtk_tree_model_filter_set_visible_column(GTK_TREE_MODEL_FILTER(filter), DT_LIB_COLLECT_COL_VISIBLE);

  return filter;
}

static const char *UNCATEGORIZED_TAG = N_("uncategorized");
static void tree_view(dt_lib_collect_rule_t *dr)
{
  // update related list
  dt_lib_collect_t *d = get_collect(dr);
  int property = gtk_combo_box_get_active(dr->combo);
  gboolean folders = (property == DT_COLLECTION_PROP_FOLDERS);
  gboolean tags = (property == DT_COLLECTION_PROP_TAG);

  set_properties(dr);

  GtkTreeModel *model = gtk_tree_model_filter_get_model(GTK_TREE_MODEL_FILTER(d->treefilter));

  if(d->view_rule != property)
  {
    // tree creation/recreation
    sqlite3_stmt *stmt;
    GtkTreeIter uncategorized = { 0 };
    GtkTreeIter temp;

    g_object_ref(model);
    g_object_unref(d->treefilter);
    gtk_tree_view_set_model(GTK_TREE_VIEW(d->view), NULL);
    gtk_tree_store_clear(GTK_TREE_STORE(model));
    gtk_widget_hide(GTK_WIDGET(d->scrolledwindow));
    gtk_widget_hide(GTK_WIDGET(d->sw2));

    /* query construction */
    char query[1024] = { 0 };
    if(folders)
      g_strlcpy(query, "SELECT DISTINCT folder, id FROM main.film_rolls ORDER BY UPPER(folder) DESC", sizeof(query));
    else if(tags)
      g_strlcpy(query, "SELECT DISTINCT name, id FROM data.tags ORDER BY UPPER(name) DESC", sizeof(query));

    DT_DEBUG_SQLITE3_PREPARE_V2(dt_database_get(darktable.db), query, -1, &stmt, NULL);

    while(sqlite3_step(stmt) == SQLITE_ROW)
    {
      const char *name = (const char *)sqlite3_column_text(stmt, 0);
      if(name == NULL) continue; // safeguard against degenerated db entries

      if(tags && strchr(name, '|') == 0)
      {
        /* add uncategorized root iter if not exists */
        if(!uncategorized.stamp)
        {
          gtk_tree_store_insert(GTK_TREE_STORE(model), &uncategorized, NULL, 0);
          gtk_tree_store_set(GTK_TREE_STORE(model), &uncategorized, DT_LIB_COLLECT_COL_TEXT,
                             _(UNCATEGORIZED_TAG), DT_LIB_COLLECT_COL_PATH, "", DT_LIB_COLLECT_COL_VISIBLE,
                             TRUE, -1);
        }

        /* adding an uncategorized tag */
        gtk_tree_store_insert(GTK_TREE_STORE(model), &temp, &uncategorized, 0);
        gtk_tree_store_set(GTK_TREE_STORE(model), &temp, DT_LIB_COLLECT_COL_TEXT, name,
                           DT_LIB_COLLECT_COL_PATH, name, DT_LIB_COLLECT_COL_VISIBLE, TRUE, -1);
      }
      else
      {
        int level = 0;
        GtkTreeIter current, iter;
        char **pch = NULL;
        if(tags)
          pch = g_strsplit(name, "|", -1);
        else if(folders)
          pch = g_strsplit(name, "/", -1);

        if(pch != NULL)
        {
          int max_level = 0;
          int j = 0;
          if(folders) j = 1; // path should have a starting '/'
          while(pch[j] != NULL)
          {
            max_level++;
            j++;
          }
          max_level--;
          j = 0;
          if(folders) j = 1; // path should have a starting '/'
          while(pch[j] != NULL)
          {
            gboolean found = FALSE;
            int children = gtk_tree_model_iter_n_children(model, level > 0 ? &current : NULL);
            /* find child with name, if not found create and continue */
            for(int k = 0; k < children; k++)
            {
              if(gtk_tree_model_iter_nth_child(model, &iter, level > 0 ? &current : NULL, k))
              {
                char *value;
                gtk_tree_model_get(model, &iter, 0, &value, -1);

                if(strcmp(value, pch[j]) == 0)
                {
                  g_free(value);
                  current = iter;
                  found = TRUE;
                  break;
                }

                g_free(value);
              }
            }

            /* lets add new keyword/folder and assign current */
            if(!found && pch[j] && *pch[j])
            {
              gchar *pth2 = NULL;

              if(folders) pth2 = dt_util_dstrcat(pth2, "/");

              for(int i = 0; i <= level; i++)
              {
                if(tags)
                  pth2 = dt_util_dstrcat(pth2, "%s|", pch[i]);
                else if(folders)
                  pth2 = dt_util_dstrcat(pth2, "%s/", pch[i + 1]);
              }
              gchar *pth3 = g_strdup(pth2);

              if(folders || level == max_level)
                pth2[strlen(pth2) - 1] = '\0';
              else
                pth2 = dt_util_dstrcat(pth2, "%%");

              gtk_tree_store_insert(GTK_TREE_STORE(model), &iter, level > 0 ? &current : NULL, 0);
              gtk_tree_store_set(GTK_TREE_STORE(model), &iter, DT_LIB_COLLECT_COL_TEXT, pch[j],
                                 DT_LIB_COLLECT_COL_PATH, pth2, DT_LIB_COLLECT_COL_VISIBLE, TRUE, -1);
              if(folders)
                gtk_tree_store_set(GTK_TREE_STORE(model), &iter, DT_LIB_COLLECT_COL_UNREACHABLE,
                                   !(g_file_test(pth3, G_FILE_TEST_IS_DIR)), -1);
              g_free(pth2);
              g_free(pth3);
              current = iter;
            }

            level++;
            j++;
          }

          g_strfreev(pch);
        }
      }
    }
    sqlite3_finalize(stmt);

    gtk_tree_view_set_tooltip_column(GTK_TREE_VIEW(d->view), DT_LIB_COLLECT_COL_TOOLTIP);

    d->treefilter = _create_filtered_model(model, dr);

    gtk_tree_view_set_model(GTK_TREE_VIEW(d->view), d->treefilter);
    gtk_widget_set_no_show_all(GTK_WIDGET(d->scrolledwindow), FALSE);
    gtk_widget_show_all(GTK_WIDGET(d->scrolledwindow));

    g_object_unref(model);

    d->view_rule = property;
  }

  // if needed, we restrict the tree to matching entries
  if(dr->typing) tree_set_visibility(model, dr);
  // we update tree expansion and selection
  gtk_tree_selection_unselect_all(gtk_tree_view_get_selection(d->view));
  gtk_tree_view_collapse_all(d->view);
  gtk_tree_model_foreach(d->treefilter, (GtkTreeModelForeachFunc)tree_expand, dr);
}

static void list_view(dt_lib_collect_rule_t *dr)
{
  // update related list
  dt_lib_collect_t *d = get_collect(dr);
  int property = gtk_combo_box_get_active(dr->combo);

  set_properties(dr);

  GtkTreeModel *model = gtk_tree_model_filter_get_model(GTK_TREE_MODEL_FILTER(d->listfilter));

  if(d->view_rule != property)
  {
    sqlite3_stmt *stmt;
    GtkTreeIter iter;
    g_object_unref(d->listfilter);
    g_object_ref(model);
    gtk_tree_view_set_model(GTK_TREE_VIEW(d->view), NULL);
    gtk_list_store_clear(GTK_LIST_STORE(model));
    gtk_widget_hide(GTK_WIDGET(d->scrolledwindow));
    gtk_widget_hide(GTK_WIDGET(d->sw2));

    char query[1024] = { 0 };

    switch(property)
    {
      case DT_COLLECTION_PROP_CAMERA:; // camera
        GList *makermodels = NULL;
        dt_collection_get_makermodel("", &makermodels, NULL);
        GList *element = makermodels;
        int index = 0;
        while(element)
        {
          gchar *value = (gchar *)element->data;
          gtk_list_store_append(GTK_LIST_STORE(model), &iter);
          gtk_list_store_set(GTK_LIST_STORE(model), &iter, DT_LIB_COLLECT_COL_TEXT, value,
                             DT_LIB_COLLECT_COL_ID, index, DT_LIB_COLLECT_COL_TOOLTIP, value,
                             DT_LIB_COLLECT_COL_PATH, value, DT_LIB_COLLECT_COL_VISIBLE, TRUE, -1);
          g_free(value);
          index++;
          element = element->next;
        }
        g_list_free(makermodels);
        break;

      case DT_COLLECTION_PROP_HISTORY: // History, 2 hardcoded alternatives
        gtk_list_store_append(GTK_LIST_STORE(model), &iter);
        gtk_list_store_set(GTK_LIST_STORE(model), &iter, DT_LIB_COLLECT_COL_TEXT, _("altered"),
                           DT_LIB_COLLECT_COL_ID, 0, DT_LIB_COLLECT_COL_TOOLTIP, _("altered"),
                           DT_LIB_COLLECT_COL_VISIBLE, TRUE, DT_LIB_COLLECT_COL_PATH, _("altered"), -1);
        gtk_list_store_append(GTK_LIST_STORE(model), &iter);
        gtk_list_store_set(GTK_LIST_STORE(model), &iter, DT_LIB_COLLECT_COL_TEXT, _("not altered"),
                           DT_LIB_COLLECT_COL_ID, 1, DT_LIB_COLLECT_COL_TOOLTIP, _("not altered"),
                           DT_LIB_COLLECT_COL_VISIBLE, TRUE, DT_LIB_COLLECT_COL_PATH, _("not altered"), -1);
        break;

      case DT_COLLECTION_PROP_GEOTAGGING: // Geotagging, 2 hardcoded alternatives
        gtk_list_store_append(GTK_LIST_STORE(model), &iter);
        gtk_list_store_set(GTK_LIST_STORE(model), &iter, DT_LIB_COLLECT_COL_TEXT, _("tagged"),
                           DT_LIB_COLLECT_COL_ID, 0, DT_LIB_COLLECT_COL_TOOLTIP, _("tagged"),
                           DT_LIB_COLLECT_COL_VISIBLE, TRUE, DT_LIB_COLLECT_COL_PATH, _("tagged"), -1);
        gtk_list_store_append(GTK_LIST_STORE(model), &iter);
        gtk_list_store_set(GTK_LIST_STORE(model), &iter, DT_LIB_COLLECT_COL_TEXT, _("not tagged"),
                           DT_LIB_COLLECT_COL_ID, 1, DT_LIB_COLLECT_COL_TOOLTIP, _("not tagged"),
                           DT_LIB_COLLECT_COL_VISIBLE, TRUE, DT_LIB_COLLECT_COL_PATH, _("not tagged"), -1);
        break;

      case DT_COLLECTION_PROP_COLORLABEL: // colorlabels
        gtk_list_store_append(GTK_LIST_STORE(model), &iter);
        gtk_list_store_set(GTK_LIST_STORE(model), &iter, DT_LIB_COLLECT_COL_TEXT, _("red"),
                           DT_LIB_COLLECT_COL_ID, 0, DT_LIB_COLLECT_COL_TOOLTIP, _("red"),
                           DT_LIB_COLLECT_COL_VISIBLE, TRUE, DT_LIB_COLLECT_COL_PATH, _("red"), -1);
        gtk_list_store_append(GTK_LIST_STORE(model), &iter);
        gtk_list_store_set(GTK_LIST_STORE(model), &iter, DT_LIB_COLLECT_COL_TEXT, _("yellow"),
                           DT_LIB_COLLECT_COL_ID, 1, DT_LIB_COLLECT_COL_TOOLTIP, _("yellow"),
                           DT_LIB_COLLECT_COL_VISIBLE, TRUE, DT_LIB_COLLECT_COL_PATH, _("yellow"), -1);
        gtk_list_store_append(GTK_LIST_STORE(model), &iter);
        gtk_list_store_set(GTK_LIST_STORE(model), &iter, DT_LIB_COLLECT_COL_TEXT, _("green"),
                           DT_LIB_COLLECT_COL_ID, 2, DT_LIB_COLLECT_COL_TOOLTIP, _("green"),
                           DT_LIB_COLLECT_COL_VISIBLE, TRUE, DT_LIB_COLLECT_COL_PATH, _("green"), -1);
        gtk_list_store_append(GTK_LIST_STORE(model), &iter);
        gtk_list_store_set(GTK_LIST_STORE(model), &iter, DT_LIB_COLLECT_COL_TEXT, _("blue"),
                           DT_LIB_COLLECT_COL_ID, 3, DT_LIB_COLLECT_COL_TOOLTIP, _("blue"),
                           DT_LIB_COLLECT_COL_VISIBLE, TRUE, DT_LIB_COLLECT_COL_PATH, _("blue"), -1);
        gtk_list_store_append(GTK_LIST_STORE(model), &iter);
        gtk_list_store_set(GTK_LIST_STORE(model), &iter, DT_LIB_COLLECT_COL_TEXT, _("purple"),
                           DT_LIB_COLLECT_COL_ID, 4, DT_LIB_COLLECT_COL_TOOLTIP, _("purple"),
                           DT_LIB_COLLECT_COL_VISIBLE, TRUE, DT_LIB_COLLECT_COL_PATH, _("purple"), -1);
        break;

      // TODO: Add empty string for metadata?
      // TODO: Autogenerate this code?
      case DT_COLLECTION_PROP_TITLE: // title
        snprintf(query, sizeof(query),
                 "SELECT DISTINCT value, 1 FROM main.meta_data WHERE key = %d ORDER BY value",
                 DT_METADATA_XMP_DC_TITLE);
        break;
      case DT_COLLECTION_PROP_DESCRIPTION: // description
        snprintf(query, sizeof(query),
                 "SELECT DISTINCT value, 1 FROM main.meta_data WHERE key = %d ORDER BY value",
                 DT_METADATA_XMP_DC_DESCRIPTION);
        break;
      case DT_COLLECTION_PROP_CREATOR: // creator
        snprintf(query, sizeof(query),
                 "SELECT DISTINCT value, 1 FROM main.meta_data WHERE key = %d ORDER BY value",
                 DT_METADATA_XMP_DC_CREATOR);
        break;
      case DT_COLLECTION_PROP_PUBLISHER: // publisher
        snprintf(query, sizeof(query),
                 "SELECT DISTINCT value, 1 FROM main.meta_data WHERE key = %d ORDER BY value",
                 DT_METADATA_XMP_DC_PUBLISHER);
        break;
      case DT_COLLECTION_PROP_RIGHTS: // rights
        snprintf(query, sizeof(query),
                 "SELECT DISTINCT value, 1 FROM main.meta_data WHERE key = %d ORDER BY value ",
                 DT_METADATA_XMP_DC_RIGHTS);
        break;
      case DT_COLLECTION_PROP_LENS: // lens
        g_strlcpy(query, "SELECT DISTINCT lens, 1 FROM main.images ORDER BY lens", sizeof(query));
        break;

      case DT_COLLECTION_PROP_FOCAL_LENGTH: // focal length
        g_strlcpy(query, "SELECT DISTINCT CAST(focal_length AS INTEGER) AS focal_length, 1 "
                         "FROM main.images ORDER BY focal_length",
                  sizeof(query));
        break;

      case DT_COLLECTION_PROP_ISO: // iso
        g_strlcpy(query, "SELECT DISTINCT CAST(iso AS INTEGER) AS iso, 1 FROM main.images ORDER BY iso",
                  sizeof(query));
        break;

      case DT_COLLECTION_PROP_APERTURE: // aperture
        g_strlcpy(query, "SELECT DISTINCT ROUND(aperture,1) AS aperture, 1 FROM main.images ORDER BY aperture",
                  sizeof(query));
        break;

      case DT_COLLECTION_PROP_FILENAME: // filename
        g_strlcpy(query, "SELECT DISTINCT filename, 1 FROM main.images ORDER BY filename", sizeof(query));
        break;

      case DT_COLLECTION_PROP_DAY:
        g_strlcpy(query,
                  "SELECT DISTINCT SUBSTR(datetime_taken, 1, 10), 1 FROM main.images ORDER BY datetime_taken DESC",
                  sizeof(query));
        break;

      case DT_COLLECTION_PROP_TIME:
        g_strlcpy(query, "SELECT DISTINCT datetime_taken, 1 FROM main.images ORDER BY datetime_taken DESC",
                  sizeof(query));
        break;

      default: // filmroll
        g_strlcpy(query, "SELECT DISTINCT folder, id FROM main.film_rolls ORDER BY folder DESC", sizeof(query));
        break;
    }

    if(strlen(query) > 0)
    {
      DT_DEBUG_SQLITE3_PREPARE_V2(dt_database_get(darktable.db), query, -1, &stmt, NULL);
      while(sqlite3_step(stmt) == SQLITE_ROW)
      {
        const char *folder = (const char *)sqlite3_column_text(stmt, 0);
        if(folder == NULL) continue; // safeguard against degenerated db entries

        gtk_list_store_append(GTK_LIST_STORE(model), &iter);
        if(property == DT_COLLECTION_PROP_FILMROLL)
        {
          folder = dt_image_film_roll_name(folder);
        }
        gchar *value = (gchar *)sqlite3_column_text(stmt, 0);

        // replace invalid utf8 characters if any
        gchar *text = g_strdup(value);
        gchar *ptr = text;
        while(!g_utf8_validate(ptr, -1, (const gchar **)&ptr)) ptr[0] = '?';

        gchar *escaped_text = g_markup_escape_text(text, -1);

        gtk_list_store_set(GTK_LIST_STORE(model), &iter, DT_LIB_COLLECT_COL_TEXT, folder,
                           DT_LIB_COLLECT_COL_ID, sqlite3_column_int(stmt, 1), DT_LIB_COLLECT_COL_TOOLTIP,
                           escaped_text, DT_LIB_COLLECT_COL_PATH, value, DT_LIB_COLLECT_COL_VISIBLE, TRUE,
                           -1);
        g_free(text);
        g_free(escaped_text);
      }
      sqlite3_finalize(stmt);
    }

    gtk_tree_view_set_tooltip_column(GTK_TREE_VIEW(d->view), DT_LIB_COLLECT_COL_TOOLTIP);

    d->listfilter = _create_filtered_model(model, dr);

    gtk_tree_view_set_model(GTK_TREE_VIEW(d->view), d->listfilter);
    gtk_widget_set_no_show_all(GTK_WIDGET(d->scrolledwindow), FALSE);
    gtk_widget_show_all(GTK_WIDGET(d->scrolledwindow));

    g_object_unref(model);

    d->view_rule = property;
  }

  // if needed, we restrict the tree to matching entries
  if(property == DT_COLLECTION_PROP_CAMERA || property == DT_COLLECTION_PROP_CREATOR
     || property == DT_COLLECTION_PROP_DAY || property == DT_COLLECTION_PROP_DESCRIPTION
     || property == DT_COLLECTION_PROP_FILENAME || property == DT_COLLECTION_PROP_FILMROLL
     || property == DT_COLLECTION_PROP_LENS || property == DT_COLLECTION_PROP_PUBLISHER
     || property == DT_COLLECTION_PROP_RIGHTS || property == DT_COLLECTION_PROP_TIME
     || property == DT_COLLECTION_PROP_TITLE || property == DT_COLLECTION_PROP_APERTURE
     || property == DT_COLLECTION_PROP_FOCAL_LENGTH || property == DT_COLLECTION_PROP_ISO)
    gtk_tree_model_foreach(model, (GtkTreeModelForeachFunc)list_match_string, dr);
  // we update list selection
  gtk_tree_selection_unselect_all(gtk_tree_view_get_selection(d->view));
  gtk_tree_model_foreach(d->listfilter, (GtkTreeModelForeachFunc)list_select, dr);
}

static void update_view(dt_lib_collect_rule_t *dr)
{
  int property = gtk_combo_box_get_active(dr->combo);

  if(property == DT_COLLECTION_PROP_FOLDERS || property == DT_COLLECTION_PROP_TAG)
    tree_view(dr);
  else
    list_view(dr);
}

static gboolean is_gui_up_to_date(dt_lib_collect_t *d)
{
  // we verify the nb of rules
  const int _a = dt_conf_get_int("plugins/lighttable/collect/num_rules") - 1;
  const int active = CLAMP(_a, 0, (MAX_RULES - 1));
  if(active + 1 != d->nb_rules) return FALSE;

  // we verify each rules
  char confname[200] = { 0 };
  for(int i = 0; i <= active; i++)
  {
    snprintf(confname, sizeof(confname), "plugins/lighttable/collect/item%1d", i);
    if(gtk_combo_box_get_active(GTK_COMBO_BOX(d->rule[i].combo)) != dt_conf_get_int(confname)) return FALSE;
    snprintf(confname, sizeof(confname), "plugins/lighttable/collect/string%1d", i);
    gchar *text = dt_conf_get_string(confname);
    if(text)
    {
      if(strcmp(gtk_entry_get_text(GTK_ENTRY(d->rule[i].text)), text) != 0)
      {
        g_free(text);
        return FALSE;
      }
      g_free(text);
    }
    if(i != active)
    {
      snprintf(confname, sizeof(confname), "plugins/lighttable/collect/mode%1d", i + 1);
      const int mode = dt_conf_get_int(confname);
      GtkDarktableButton *button = DTGTK_BUTTON(d->rule[i].button);
      if(mode == DT_LIB_COLLECT_MODE_AND && button->icon != dtgtk_cairo_paint_and) return FALSE;
      if(mode == DT_LIB_COLLECT_MODE_OR && button->icon != dtgtk_cairo_paint_or) return FALSE;
      if(mode == DT_LIB_COLLECT_MODE_AND_NOT && button->icon != dtgtk_cairo_paint_andnot) return FALSE;
    }
  }
  return TRUE;
}

static void _lib_collect_gui_update(dt_lib_module_t *self)
{
  dt_lib_collect_t *d = (dt_lib_collect_t *)self->data;

  // we check if something as change since last call
  if(is_gui_up_to_date(d)) return;

  const int old = darktable.gui->reset;
  darktable.gui->reset = 1;
  const int _a = dt_conf_get_int("plugins/lighttable/collect/num_rules") - 1;
  const int active = CLAMP(_a, 0, (MAX_RULES - 1));
  d->nb_rules = active + 1;
  char confname[200] = { 0 };

  gtk_widget_set_no_show_all(GTK_WIDGET(d->scrolledwindow), TRUE);
  gtk_widget_set_no_show_all(GTK_WIDGET(d->sw2), TRUE);

  for(int i = 0; i < MAX_RULES; i++)
  {
    gtk_widget_set_no_show_all(d->rule[i].hbox, TRUE);
    gtk_widget_set_visible(d->rule[i].hbox, FALSE);
  }
  for(int i = 0; i <= active; i++)
  {
    gtk_widget_set_no_show_all(d->rule[i].hbox, FALSE);
    gtk_widget_set_visible(d->rule[i].hbox, TRUE);
    gtk_widget_show_all(d->rule[i].hbox);
    snprintf(confname, sizeof(confname), "plugins/lighttable/collect/item%1d", i);
    gtk_combo_box_set_active(GTK_COMBO_BOX(d->rule[i].combo), dt_conf_get_int(confname));
    snprintf(confname, sizeof(confname), "plugins/lighttable/collect/string%1d", i);
    gchar *text = dt_conf_get_string(confname);
    if(text)
    {
      g_signal_handlers_block_matched(d->rule[i].text, G_SIGNAL_MATCH_FUNC, 0, 0, NULL, entry_changed, NULL);
      g_signal_handlers_block_matched(d->rule[i].text, G_SIGNAL_MATCH_FUNC, 0, 0, NULL, entry_insert_text, NULL);
      gtk_entry_set_text(GTK_ENTRY(d->rule[i].text), text);
      gtk_editable_set_position(GTK_EDITABLE(d->rule[i].text), -1);
      g_signal_handlers_unblock_matched(d->rule[i].text, G_SIGNAL_MATCH_FUNC, 0, 0, NULL, entry_changed, NULL);
      g_signal_handlers_unblock_matched(d->rule[i].text, G_SIGNAL_MATCH_FUNC, 0, 0, NULL, entry_insert_text, NULL);
      g_free(text);
      d->rule[i].typing = FALSE;
    }

    GtkDarktableButton *button = DTGTK_BUTTON(d->rule[i].button);
    if(i == MAX_RULES - 1)
    {
      // only clear
      button->icon = dtgtk_cairo_paint_cancel;
      gtk_widget_set_tooltip_text(GTK_WIDGET(button), _("clear this rule"));
    }
    else if(i == active)
    {
      button->icon = dtgtk_cairo_paint_dropdown;
      gtk_widget_set_tooltip_text(GTK_WIDGET(button), _("clear this rule or add new rules"));
    }
    else
    {
      snprintf(confname, sizeof(confname), "plugins/lighttable/collect/mode%1d", i + 1);
      const int mode = dt_conf_get_int(confname);
      if(mode == DT_LIB_COLLECT_MODE_AND) button->icon = dtgtk_cairo_paint_and;
      if(mode == DT_LIB_COLLECT_MODE_OR) button->icon = dtgtk_cairo_paint_or;
      if(mode == DT_LIB_COLLECT_MODE_AND_NOT) button->icon = dtgtk_cairo_paint_andnot;
      gtk_widget_set_tooltip_text(GTK_WIDGET(button), _("clear this rule"));
    }
  }

  // update list of proposals
  update_view(d->rule + d->active_rule);
  darktable.gui->reset = old;
}

void gui_reset(dt_lib_module_t *self)
{
  dt_conf_set_int("plugins/lighttable/collect/num_rules", 1);
  dt_conf_set_int("plugins/lighttable/collect/item0", DT_COLLECTION_PROP_FILMROLL);
  dt_conf_set_string("plugins/lighttable/collect/string0", "");
  dt_lib_collect_t *d = (dt_lib_collect_t *)self->data;
  d->active_rule = 0;
  dt_collection_set_query_flags(darktable.collection, COLLECTION_QUERY_FULL);
  dt_collection_update_query(darktable.collection);
}

static void combo_changed(GtkComboBox *combo, dt_lib_collect_rule_t *d)
{
  if(darktable.gui->reset) return;
  g_signal_handlers_block_matched(d->text, G_SIGNAL_MATCH_FUNC, 0, 0, NULL, entry_insert_text, NULL);
  g_signal_handlers_block_matched(d->text, G_SIGNAL_MATCH_FUNC, 0, 0, NULL, entry_changed, NULL);
  gtk_entry_set_text(GTK_ENTRY(d->text), "");
  g_signal_handlers_unblock_matched(d->text, G_SIGNAL_MATCH_FUNC, 0, 0, NULL, entry_insert_text, NULL);
  g_signal_handlers_unblock_matched(d->text, G_SIGNAL_MATCH_FUNC, 0, 0, NULL, entry_changed, NULL);
  dt_lib_collect_t *c = get_collect(d);
  c->active_rule = d->num;

  int property = gtk_combo_box_get_active(d->combo);

  if(property == DT_COLLECTION_PROP_FOLDERS || property == DT_COLLECTION_PROP_TAG)
  {
    d->typing = FALSE;
  }

  if(property == DT_COLLECTION_PROP_APERTURE || property == DT_COLLECTION_PROP_FOCAL_LENGTH
     || property == DT_COLLECTION_PROP_ISO)
  {
    gtk_widget_set_tooltip_text(d->text, _("type your query, use <, <=, >, >=, <>, =, [;] as operators"));
  }
  else if(property == DT_COLLECTION_PROP_DAY || property == DT_COLLECTION_PROP_TIME)
  {
    gtk_widget_set_tooltip_text(d->text,
                                _("type your query, use <, <=, >, >=, <>, =, [;] as operators, type dates in "
                                  "the form : YYYY:MM:DD HH:MM:SS (only the year is mandatory)"));
  }
  else
  {
    /* xgettext:no-c-format */
    gtk_widget_set_tooltip_text(d->text, _("type your query, use `%' as wildcard"));
  }

  update_view(d);
  dt_collection_update_query(darktable.collection);
}

static void row_activated(GtkTreeView *view, GtkTreePath *path, GtkTreeViewColumn *col, dt_lib_collect_t *d)
{
  GtkTreeIter iter;
  GtkTreeModel *model = NULL;

  GtkTreeSelection *selection = gtk_tree_view_get_selection(GTK_TREE_VIEW(view));
  if(!gtk_tree_selection_get_selected(selection, &model, &iter)) return;
  gchar *text;

  const int active = d->active_rule;
  d->rule[active].typing = FALSE;

  const int item = gtk_combo_box_get_active(GTK_COMBO_BOX(d->rule[active].combo));
  if(item == DT_COLLECTION_PROP_FILMROLL || // get full path for film rolls
     item == DT_COLLECTION_PROP_TAG ||      // or tags
     item == DT_COLLECTION_PROP_FOLDERS)    // or folders
    gtk_tree_model_get(model, &iter, DT_LIB_COLLECT_COL_PATH, &text, -1);
  else
    gtk_tree_model_get(model, &iter, DT_LIB_COLLECT_COL_TEXT, &text, -1);

  g_signal_handlers_block_matched(d->rule[active].text, G_SIGNAL_MATCH_FUNC, 0, 0, NULL, entry_insert_text, NULL);
  g_signal_handlers_block_matched(d->rule[active].text, G_SIGNAL_MATCH_FUNC, 0, 0, NULL, entry_changed, NULL);
  gtk_entry_set_text(GTK_ENTRY(d->rule[active].text), text);
  gtk_editable_set_position(GTK_EDITABLE(d->rule[active].text), -1);
  g_signal_handlers_unblock_matched(d->rule[active].text, G_SIGNAL_MATCH_FUNC, 0, 0, NULL, entry_insert_text,
                                    NULL);
  g_signal_handlers_unblock_matched(d->rule[active].text, G_SIGNAL_MATCH_FUNC, 0, 0, NULL, entry_changed,
                                    NULL);
  g_free(text);

  if(item == DT_COLLECTION_PROP_TAG || item == DT_COLLECTION_PROP_FOLDERS
     || item == DT_COLLECTION_PROP_COLORLABEL || item == DT_COLLECTION_PROP_GEOTAGGING
     || item == DT_COLLECTION_PROP_HISTORY)
    set_properties(d->rule + active); // we just have to set the selection
  else
    update_view(d->rule + active); // we have to update visible items too

  dt_collection_update_query(darktable.collection);
  dt_control_queue_redraw_center();
}

static void entry_activated(GtkWidget *entry, dt_lib_collect_rule_t *d)
{
  GtkTreeView *view;
  GtkTreeModel *model;
  int property, rows;

  update_view(d);
  dt_lib_collect_t *c = get_collect(d);

  property = gtk_combo_box_get_active(d->combo);

  if(property != DT_COLLECTION_PROP_FOLDERS && property != DT_COLLECTION_PROP_TAG)
  {
    view = c->view;
    model = gtk_tree_view_get_model(GTK_TREE_VIEW(view));

    rows = gtk_tree_model_iter_n_children(model, NULL);

    if(rows == 1)
    {
      GtkTreeIter iter;
      if(gtk_tree_model_get_iter_first(model, &iter))
      {
        gchar *text;
        const int item = gtk_combo_box_get_active(GTK_COMBO_BOX(d->combo));
        if(item == DT_COLLECTION_PROP_FILMROLL || // get full path for film rolls
           item == DT_COLLECTION_PROP_TAG || item == DT_COLLECTION_PROP_FOLDERS) // or folders
          gtk_tree_model_get(model, &iter, DT_LIB_COLLECT_COL_PATH, &text, -1);
        else
          gtk_tree_model_get(model, &iter, DT_LIB_COLLECT_COL_TEXT, &text, -1);

        g_signal_handlers_block_matched(d->text, G_SIGNAL_MATCH_FUNC, 0, 0, NULL, entry_insert_text, NULL);
        g_signal_handlers_block_matched(d->text, G_SIGNAL_MATCH_FUNC, 0, 0, NULL, entry_changed, NULL);
        gtk_entry_set_text(GTK_ENTRY(d->text), text);
        gtk_editable_set_position(GTK_EDITABLE(d->text), -1);
        g_signal_handlers_unblock_matched(d->text, G_SIGNAL_MATCH_FUNC, 0, 0, NULL, entry_insert_text, NULL);
        g_signal_handlers_unblock_matched(d->text, G_SIGNAL_MATCH_FUNC, 0, 0, NULL, entry_changed, NULL);
        g_free(text);
        d->typing = FALSE;
        update_view(d);
      }
    }
  }
  dt_collection_update_query(darktable.collection);
}

static void entry_insert_text(GtkWidget *entry, gchar *new_text, gint new_length, gpointer *position,
                          dt_lib_collect_rule_t *d)
{
  d->typing = TRUE;
}

static void entry_changed(GtkEntry *entry, dt_lib_collect_rule_t *dr)
{
  update_view(dr);
}

int position()
{
  return 400;
}

static void entry_focus_in_callback(GtkWidget *w, GdkEventFocus *event, dt_lib_collect_rule_t *d)
{
  dt_lib_collect_t *c = get_collect(d);
  if(c->active_rule != d->num)
  {
    c->active_rule = d->num;
    update_view(c->rule + c->active_rule);
  }
}

static void menuitem_and(GtkMenuItem *menuitem, dt_lib_collect_rule_t *d)
{
  // add next row with and operator
  const int _a = dt_conf_get_int("plugins/lighttable/collect/num_rules");
  const int active = CLAMP(_a, 1, MAX_RULES);
  if(active < MAX_RULES)
  {
    char confname[200] = { 0 };
    snprintf(confname, sizeof(confname), "plugins/lighttable/collect/mode%1d", active);
    dt_conf_set_int(confname, DT_LIB_COLLECT_MODE_AND);
    snprintf(confname, sizeof(confname), "plugins/lighttable/collect/string%1d", active);
    dt_conf_set_string(confname, "");
    dt_conf_set_int("plugins/lighttable/collect/num_rules", active + 1);
    dt_lib_collect_t *c = get_collect(d);
    c->active_rule = active;
  }
  dt_collection_update_query(darktable.collection);
}

static void menuitem_or(GtkMenuItem *menuitem, dt_lib_collect_rule_t *d)
{
  // add next row with or operator
  const int _a = dt_conf_get_int("plugins/lighttable/collect/num_rules");
  const int active = CLAMP(_a, 1, MAX_RULES);
  if(active < MAX_RULES)
  {
    char confname[200] = { 0 };
    snprintf(confname, sizeof(confname), "plugins/lighttable/collect/mode%1d", active);
    dt_conf_set_int(confname, DT_LIB_COLLECT_MODE_OR);
    snprintf(confname, sizeof(confname), "plugins/lighttable/collect/string%1d", active);
    dt_conf_set_string(confname, "");
    dt_conf_set_int("plugins/lighttable/collect/num_rules", active + 1);
    dt_lib_collect_t *c = get_collect(d);
    c->active_rule = active;
  }
  dt_collection_update_query(darktable.collection);
}

static void menuitem_and_not(GtkMenuItem *menuitem, dt_lib_collect_rule_t *d)
{
  // add next row with and not operator
  const int _a = dt_conf_get_int("plugins/lighttable/collect/num_rules");
  const int active = CLAMP(_a, 1, MAX_RULES);
  if(active < MAX_RULES)
  {
    char confname[200] = { 0 };
    snprintf(confname, sizeof(confname), "plugins/lighttable/collect/mode%1d", active);
    dt_conf_set_int(confname, DT_LIB_COLLECT_MODE_AND_NOT);
    snprintf(confname, sizeof(confname), "plugins/lighttable/collect/string%1d", active);
    dt_conf_set_string(confname, "");
    dt_conf_set_int("plugins/lighttable/collect/num_rules", active + 1);
    dt_lib_collect_t *c = get_collect(d);
    c->active_rule = active;
  }
  dt_collection_update_query(darktable.collection);
}

static void menuitem_change_and(GtkMenuItem *menuitem, dt_lib_collect_rule_t *d)
{
  // add next row with and operator
  const int num = d->num + 1;
  if(num < MAX_RULES && num > 0)
  {
    char confname[200] = { 0 };
    snprintf(confname, sizeof(confname), "plugins/lighttable/collect/mode%1d", num);
    dt_conf_set_int(confname, DT_LIB_COLLECT_MODE_AND);
  }
  dt_collection_update_query(darktable.collection);
}

static void menuitem_change_or(GtkMenuItem *menuitem, dt_lib_collect_rule_t *d)
{
  // add next row with or operator
  const int num = d->num + 1;
  if(num < MAX_RULES && num > 0)
  {
    char confname[200] = { 0 };
    snprintf(confname, sizeof(confname), "plugins/lighttable/collect/mode%1d", num);
    dt_conf_set_int(confname, DT_LIB_COLLECT_MODE_OR);
  }
  dt_collection_update_query(darktable.collection);
}

static void menuitem_change_and_not(GtkMenuItem *menuitem, dt_lib_collect_rule_t *d)
{
  // add next row with and not operator
  const int num = d->num + 1;
  if(num < MAX_RULES && num > 0)
  {
    char confname[200] = { 0 };
    snprintf(confname, sizeof(confname), "plugins/lighttable/collect/mode%1d", num);
    dt_conf_set_int(confname, DT_LIB_COLLECT_MODE_AND_NOT);
  }
  dt_collection_update_query(darktable.collection);
}

static void collection_updated(gpointer instance, gpointer self)
{
  _lib_collect_gui_update(self);
}


static void filmrolls_updated(gpointer instance, gpointer self)
{
  // TODO: We should update the count of images here
  _lib_collect_gui_update(self);
}

static void filmrolls_imported(gpointer instance, int film_id, gpointer self)
{
  dt_lib_module_t *dm = (dt_lib_module_t *)self;
  dt_lib_collect_t *d = (dt_lib_collect_t *)dm->data;

  // update tree
  d->view_rule = -1;
  d->rule[d->active_rule].typing = FALSE;
  _lib_collect_gui_update(self);
}

static void filmrolls_removed(gpointer instance, gpointer self)
{
  dt_lib_module_t *dm = (dt_lib_module_t *)self;
  dt_lib_collect_t *d = (dt_lib_collect_t *)dm->data;

  // update tree
  d->view_rule = -1;
  d->rule[d->active_rule].typing = FALSE;
  _lib_collect_gui_update(self);
}

static void tag_changed(gpointer instance, gpointer self)
{
  dt_lib_module_t *dm = (dt_lib_module_t *)self;
  dt_lib_collect_t *d = (dt_lib_collect_t *)dm->data;

  // update tree
  if(gtk_combo_box_get_active(GTK_COMBO_BOX(d->rule[d->active_rule].combo)) == DT_COLLECTION_PROP_TAG)
  {
    d->view_rule = -1;
    d->rule[d->active_rule].typing = FALSE;
    _lib_collect_gui_update(self);
  }
}

static void menuitem_clear(GtkMenuItem *menuitem, dt_lib_collect_rule_t *d)
{
  // remove this row, or if 1st, clear text entry box
  const int _a = dt_conf_get_int("plugins/lighttable/collect/num_rules");
  const int active = CLAMP(_a, 1, MAX_RULES);
  dt_lib_collect_t *c = get_collect(d);
  if(active > 1)
  {
    dt_conf_set_int("plugins/lighttable/collect/num_rules", active - 1);
    if(c->active_rule >= active - 1) c->active_rule = active - 2;
  }
  else
  {
    dt_conf_set_int("plugins/lighttable/collect/mode0", DT_LIB_COLLECT_MODE_AND);
    dt_conf_set_int("plugins/lighttable/collect/item0", 0);
    dt_conf_set_string("plugins/lighttable/collect/string0", "");
    d->typing = FALSE;
    gtk_combo_box_set_active(d->combo, 0);
    gtk_entry_set_text(GTK_ENTRY(d->text), "");
  }
  // move up all still active rules by one.
  for(int i = d->num; i < MAX_RULES - 1; i++)
  {
    char confname[200] = { 0 };
    snprintf(confname, sizeof(confname), "plugins/lighttable/collect/mode%1d", i + 1);
    const int mode = dt_conf_get_int(confname);
    snprintf(confname, sizeof(confname), "plugins/lighttable/collect/item%1d", i + 1);
    const int item = dt_conf_get_int(confname);
    snprintf(confname, sizeof(confname), "plugins/lighttable/collect/string%1d", i + 1);
    gchar *string = dt_conf_get_string(confname);
    if(string)
    {
      snprintf(confname, sizeof(confname), "plugins/lighttable/collect/mode%1d", i);
      dt_conf_set_int(confname, mode);
      snprintf(confname, sizeof(confname), "plugins/lighttable/collect/item%1d", i);
      dt_conf_set_int(confname, item);
      snprintf(confname, sizeof(confname), "plugins/lighttable/collect/string%1d", i);
      dt_conf_set_string(confname, string);
      g_free(string);
    }
  }

  dt_collection_update_query(darktable.collection);
}

static gboolean popup_button_callback(GtkWidget *widget, GdkEventButton *event, dt_lib_collect_rule_t *d)
{
  if(event->button != 1) return FALSE;

  GtkWidget *menu = gtk_menu_new();
  GtkWidget *mi;
  const int _a = dt_conf_get_int("plugins/lighttable/collect/num_rules");
  const int active = CLAMP(_a, 1, MAX_RULES);

  mi = gtk_menu_item_new_with_label(_("clear this rule"));
  gtk_menu_shell_append(GTK_MENU_SHELL(menu), mi);
  g_signal_connect(G_OBJECT(mi), "activate", G_CALLBACK(menuitem_clear), d);

  if(d->num == active - 1)
  {
    mi = gtk_menu_item_new_with_label(_("narrow down search"));
    gtk_menu_shell_append(GTK_MENU_SHELL(menu), mi);
    g_signal_connect(G_OBJECT(mi), "activate", G_CALLBACK(menuitem_and), d);

    mi = gtk_menu_item_new_with_label(_("add more images"));
    gtk_menu_shell_append(GTK_MENU_SHELL(menu), mi);
    g_signal_connect(G_OBJECT(mi), "activate", G_CALLBACK(menuitem_or), d);

    mi = gtk_menu_item_new_with_label(_("exclude images"));
    gtk_menu_shell_append(GTK_MENU_SHELL(menu), mi);
    g_signal_connect(G_OBJECT(mi), "activate", G_CALLBACK(menuitem_and_not), d);
  }
  else if(d->num < active - 1)
  {
    mi = gtk_menu_item_new_with_label(_("change to: and"));
    gtk_menu_shell_append(GTK_MENU_SHELL(menu), mi);
    g_signal_connect(G_OBJECT(mi), "activate", G_CALLBACK(menuitem_change_and), d);

    mi = gtk_menu_item_new_with_label(_("change to: or"));
    gtk_menu_shell_append(GTK_MENU_SHELL(menu), mi);
    g_signal_connect(G_OBJECT(mi), "activate", G_CALLBACK(menuitem_change_or), d);

    mi = gtk_menu_item_new_with_label(_("change to: except"));
    gtk_menu_shell_append(GTK_MENU_SHELL(menu), mi);
    g_signal_connect(G_OBJECT(mi), "activate", G_CALLBACK(menuitem_change_and_not), d);
  }

#if GTK_CHECK_VERSION(3, 22, 0)
  gtk_menu_popup_at_pointer(GTK_MENU(menu), (GdkEvent *)event);
#else
  gtk_menu_popup(GTK_MENU(menu), NULL, NULL, NULL, NULL, event->button, event->time);
#endif

  gtk_widget_show_all(menu);

  return TRUE;
}

void gui_init(dt_lib_module_t *self)
{
  dt_lib_collect_t *d = (dt_lib_collect_t *)calloc(1, sizeof(dt_lib_collect_t));

  self->data = (void *)d;
  self->widget = gtk_box_new(GTK_ORIENTATION_VERTICAL, 5);

  d->active_rule = 0;
  d->nb_rules = 0;
  d->params = (dt_lib_collect_params_t *)malloc(sizeof(dt_lib_collect_params_t));

  GtkBox *box;
  GtkWidget *w;

  for(int i = 0; i < MAX_RULES; i++)
  {
    d->rule[i].num = i;
    d->rule[i].typing = FALSE;
    box = GTK_BOX(gtk_box_new(GTK_ORIENTATION_HORIZONTAL, 5));
    d->rule[i].hbox = GTK_WIDGET(box);
    gtk_box_pack_start(GTK_BOX(self->widget), GTK_WIDGET(box), TRUE, TRUE, 0);
    w = gtk_combo_box_text_new();
    d->rule[i].combo = GTK_COMBO_BOX(w);
    for(int k = 0; k < dt_lib_collect_string_cnt; k++)
      gtk_combo_box_text_append_text(GTK_COMBO_BOX_TEXT(w), _(dt_lib_collect_string[k]));
    g_signal_connect(G_OBJECT(w), "changed", G_CALLBACK(combo_changed), d->rule + i);
    gtk_box_pack_start(box, w, FALSE, FALSE, 0);

    w = gtk_entry_new();
    d->rule[i].text = w;
    dt_gui_key_accel_block_on_focus_connect(d->rule[i].text);
    gtk_widget_add_events(w, GDK_FOCUS_CHANGE_MASK);
    g_signal_connect(G_OBJECT(w), "focus-in-event", G_CALLBACK(entry_focus_in_callback), d->rule + i);

    /* xgettext:no-c-format */
    gtk_widget_set_tooltip_text(w, _("type your query, use `%' as wildcard"));
    gtk_widget_add_events(w, GDK_KEY_PRESS_MASK);
    g_signal_connect(G_OBJECT(w), "insert-text", G_CALLBACK(entry_insert_text), d->rule + i);
    g_signal_connect(G_OBJECT(w), "changed", G_CALLBACK(entry_changed), d->rule + i);
    g_signal_connect(G_OBJECT(w), "activate", G_CALLBACK(entry_activated), d->rule + i);
    gtk_box_pack_start(box, w, TRUE, TRUE, 0);
    gtk_entry_set_width_chars(GTK_ENTRY(w), 0);

    w = dtgtk_button_new(dtgtk_cairo_paint_presets, CPF_STYLE_FLAT | CPF_DO_NOT_USE_BORDER);
    d->rule[i].button = w;
    gtk_widget_set_events(w, GDK_BUTTON_PRESS_MASK);
    g_signal_connect(G_OBJECT(w), "button-press-event", G_CALLBACK(popup_button_callback), d->rule + i);
    gtk_box_pack_start(box, w, FALSE, FALSE, 0);
    gtk_widget_set_size_request(w, DT_PIXEL_APPLY_DPI(13), DT_PIXEL_APPLY_DPI(13));
  }

  GtkWidget *sw = gtk_scrolled_window_new(NULL, NULL);
  d->scrolledwindow = GTK_SCROLLED_WINDOW(sw);
  gtk_scrolled_window_set_policy(GTK_SCROLLED_WINDOW(sw), GTK_POLICY_AUTOMATIC, GTK_POLICY_AUTOMATIC);
  gtk_scrolled_window_set_min_content_height(GTK_SCROLLED_WINDOW(d->scrolledwindow), DT_PIXEL_APPLY_DPI(300));
  GtkTreeView *view = GTK_TREE_VIEW(gtk_tree_view_new());
  d->view_rule = -1;
  d->view = view;
  gtk_tree_view_set_headers_visible(view, FALSE);
  gtk_container_add(GTK_CONTAINER(sw), GTK_WIDGET(view));
  g_signal_connect(G_OBJECT(view), "row-activated", G_CALLBACK(row_activated), d);
  g_signal_connect(G_OBJECT(view), "button-press-event", G_CALLBACK(view_onButtonPressed), d);
  g_signal_connect(G_OBJECT(view), "popup-menu", G_CALLBACK(view_onPopupMenu), d);

  GtkTreeViewColumn *col = gtk_tree_view_column_new();
  gtk_tree_view_append_column(view, col);
  GtkCellRenderer *renderer = gtk_cell_renderer_text_new();
  gtk_tree_view_column_pack_start(col, renderer, TRUE);
  gtk_tree_view_column_add_attribute(col, renderer, "text", DT_LIB_COLLECT_COL_TEXT);
  g_object_set(renderer, "strikethrough", TRUE, (gchar *)0);
  gtk_tree_view_column_add_attribute(col, renderer, "strikethrough-set", DT_LIB_COLLECT_COL_UNREACHABLE);

  GtkTreeModel *listmodel
      = GTK_TREE_MODEL(gtk_list_store_new(DT_LIB_COLLECT_NUM_COLS, G_TYPE_STRING, G_TYPE_UINT, G_TYPE_STRING,
                                          G_TYPE_STRING, G_TYPE_BOOLEAN, G_TYPE_BOOLEAN));
  d->listfilter = gtk_tree_model_filter_new(listmodel, NULL);
  gtk_tree_model_filter_set_visible_column(GTK_TREE_MODEL_FILTER(d->listfilter), DT_LIB_COLLECT_COL_VISIBLE);

  GtkTreeModel *treemodel
      = GTK_TREE_MODEL(gtk_tree_store_new(DT_LIB_COLLECT_NUM_COLS, G_TYPE_STRING, G_TYPE_UINT, G_TYPE_STRING,
                                          G_TYPE_STRING, G_TYPE_BOOLEAN, G_TYPE_BOOLEAN));
  d->treefilter = gtk_tree_model_filter_new(treemodel, NULL);
  gtk_tree_model_filter_set_visible_column(GTK_TREE_MODEL_FILTER(d->treefilter), DT_LIB_COLLECT_COL_VISIBLE);
  g_object_unref(treemodel);

  gtk_box_pack_start(GTK_BOX(self->widget), GTK_WIDGET(sw), TRUE, TRUE, 0);

  GtkWidget *sw2 = gtk_scrolled_window_new(NULL, NULL);
  d->sw2 = GTK_SCROLLED_WINDOW(sw2);
  gtk_scrolled_window_set_policy(GTK_SCROLLED_WINDOW(sw2), GTK_POLICY_AUTOMATIC, GTK_POLICY_AUTOMATIC);
  gtk_scrolled_window_set_min_content_height(GTK_SCROLLED_WINDOW(sw2), DT_PIXEL_APPLY_DPI(300));

  gtk_box_pack_start(GTK_BOX(self->widget), GTK_WIDGET(sw2), TRUE, TRUE, 0);

  /* setup proxy */
  darktable.view_manager->proxy.module_collect.module = self;
  darktable.view_manager->proxy.module_collect.update = _lib_collect_gui_update;

  _lib_collect_gui_update(self);

  dt_control_signal_connect(darktable.signals, DT_SIGNAL_COLLECTION_CHANGED, G_CALLBACK(collection_updated),
                            self);

  dt_control_signal_connect(darktable.signals, DT_SIGNAL_FILMROLLS_CHANGED, G_CALLBACK(filmrolls_updated),
                            self);

  dt_control_signal_connect(darktable.signals, DT_SIGNAL_FILMROLLS_IMPORTED, G_CALLBACK(filmrolls_imported),
                            self);

  dt_control_signal_connect(darktable.signals, DT_SIGNAL_FILMROLLS_REMOVED, G_CALLBACK(filmrolls_removed),
                            self);

  dt_control_signal_connect(darktable.signals, DT_SIGNAL_TAG_CHANGED, G_CALLBACK(tag_changed),
                            self);
}

void gui_cleanup(dt_lib_module_t *self)
{
  dt_lib_collect_t *d = (dt_lib_collect_t *)self->data;

  for(int i = 0; i < MAX_RULES; i++) dt_gui_key_accel_block_on_focus_disconnect(d->rule[i].text);

  dt_control_signal_disconnect(darktable.signals, G_CALLBACK(collection_updated), self);
  dt_control_signal_disconnect(darktable.signals, G_CALLBACK(filmrolls_updated), self);
  dt_control_signal_disconnect(darktable.signals, G_CALLBACK(filmrolls_imported), self);
  dt_control_signal_disconnect(darktable.signals, G_CALLBACK(filmrolls_removed), self);
  dt_control_signal_disconnect(darktable.signals, G_CALLBACK(tag_changed), self);
  darktable.view_manager->proxy.module_collect.module = NULL;
  free(d->params);

  /* cleanup mem */

  g_object_unref(d->treefilter);
  g_object_unref(d->listfilter);

  /* TODO: Make sure we are cleaning up all allocations */

  free(self->data);
  self->data = NULL;
}


#ifdef USE_LUA
static int new_rule_cb(lua_State*L)
{
  dt_lib_collect_params_rule_t rule;
  memset(&rule,0, sizeof(dt_lib_collect_params_rule_t));
  luaA_push(L,dt_lib_collect_params_rule_t,&rule);
  return 1;
}
static int filter_cb(lua_State *L)
{
  dt_lib_module_t *self = lua_touserdata(L, lua_upvalueindex(1));

  int size;
  dt_lib_collect_params_t *p = get_params(self,&size);
  // put it in stack so memory is not lost if a lua exception is raised



  if(lua_gettop(L) > 0) {
    luaL_checktype(L,1,LUA_TTABLE);
    dt_lib_collect_params_t *new_p = get_params(self,&size);
    new_p->rules = 0;
    do {
      lua_pushinteger(L,new_p->rules + 1);
      lua_gettable(L,1);
      if(lua_isnil(L,-1)) break;
      luaA_to(L,dt_lib_collect_params_rule_t,&new_p->rule[new_p->rules],-1);
      new_p->rules++;
    }while(new_p->rules < MAX_RULES);
    if(new_p->rules == MAX_RULES) {
      lua_pushinteger(L,new_p->rules + 1);
      lua_gettable(L,1);
      if(!lua_isnil(L,-1)) {
        luaL_error(L,"Number of rules given excedes max allowed (%d)",MAX_RULES);
      }
    }
    set_params(self,new_p,size);
    free(new_p);

  }
  lua_newtable(L);
  for(int i = 0; i < p->rules; i++) {
    luaA_push(L,dt_lib_collect_params_rule_t,&p->rule[i]);
    luaL_ref(L,-2);
  }
  free(p);
  return 1;
}

static int mode_member(lua_State *L)
{
  dt_lib_collect_params_rule_t *rule = luaL_checkudata(L,1,"dt_lib_collect_params_rule_t");
  if(lua_gettop(L) > 2) {
    dt_lib_collect_mode_t value;
    luaA_to(L,dt_lib_collect_mode_t,&value,3);
    rule->mode = value;
    return 0;
  }
  const dt_lib_collect_mode_t tmp = rule->mode; // temp buffer because of bitfield in the original struct
  luaA_push(L,dt_lib_collect_mode_t,&tmp);
  return 1;
}

static int item_member(lua_State *L)
{
  dt_lib_collect_params_rule_t *rule = luaL_checkudata(L,1,"dt_lib_collect_params_rule_t");

  if(lua_gettop(L) > 2) {
    dt_collection_properties_t value;
    luaA_to(L,dt_collection_properties_t,&value,3);
    rule->item = value;
    return 0;
  }
  const dt_collection_properties_t tmp = rule->item; // temp buffer because of bitfield in the original struct
  luaA_push(L,dt_collection_properties_t,&tmp);
  return 1;
}

static int data_member(lua_State *L)
{
  dt_lib_collect_params_rule_t *rule = luaL_checkudata(L,1,"dt_lib_collect_params_rule_t");

  if(lua_gettop(L) > 2) {
    size_t tgt_size;
    const char*data = luaL_checklstring(L,3,&tgt_size);
    if(tgt_size > PARAM_STRING_SIZE)
    {
      return luaL_error(L, "string '%s' too long (max is %d)", data, PARAM_STRING_SIZE);
    }
    g_strlcpy(rule->string, data, sizeof(rule->string));
    return 0;
  }
  lua_pushstring(L,rule->string);
  return 1;
}



void init(struct dt_lib_module_t *self)
{

  lua_State *L = darktable.lua_state.state;
  int my_type = dt_lua_module_entry_get_type(L, "lib", self->plugin_name);
  lua_pushlightuserdata(L, self);
  lua_pushcclosure(L, filter_cb,1);
  dt_lua_gtk_wrap(L);
  lua_pushcclosure(L, dt_lua_type_member_common, 1);
  dt_lua_type_register_const_type(L, my_type, "filter");
  lua_pushcfunction(L, new_rule_cb);
  lua_pushcclosure(L, dt_lua_type_member_common, 1);
  dt_lua_type_register_const_type(L, my_type, "new_rule");

  dt_lua_init_type(L,dt_lib_collect_params_rule_t);
  lua_pushcfunction(L,mode_member);
  dt_lua_type_register(L, dt_lib_collect_params_rule_t, "mode");
  lua_pushcfunction(L,item_member);
  dt_lua_type_register(L, dt_lib_collect_params_rule_t, "item");
  lua_pushcfunction(L,data_member);
  dt_lua_type_register(L, dt_lib_collect_params_rule_t, "data");


  luaA_enum(L,dt_lib_collect_mode_t);
  luaA_enum_value(L,dt_lib_collect_mode_t,DT_LIB_COLLECT_MODE_AND);
  luaA_enum_value(L,dt_lib_collect_mode_t,DT_LIB_COLLECT_MODE_OR);
  luaA_enum_value(L,dt_lib_collect_mode_t,DT_LIB_COLLECT_MODE_AND_NOT);

  luaA_enum(L,dt_collection_properties_t);
  luaA_enum_value(L,dt_collection_properties_t,DT_COLLECTION_PROP_FILMROLL);
  luaA_enum_value(L,dt_collection_properties_t,DT_COLLECTION_PROP_FOLDERS);
  luaA_enum_value(L,dt_collection_properties_t,DT_COLLECTION_PROP_CAMERA);
  luaA_enum_value(L,dt_collection_properties_t,DT_COLLECTION_PROP_TAG);
  luaA_enum_value(L,dt_collection_properties_t,DT_COLLECTION_PROP_DAY);
  luaA_enum_value(L,dt_collection_properties_t,DT_COLLECTION_PROP_TIME);
  luaA_enum_value(L,dt_collection_properties_t,DT_COLLECTION_PROP_HISTORY);
  luaA_enum_value(L,dt_collection_properties_t,DT_COLLECTION_PROP_COLORLABEL);
  luaA_enum_value(L,dt_collection_properties_t,DT_COLLECTION_PROP_TITLE);
  luaA_enum_value(L,dt_collection_properties_t,DT_COLLECTION_PROP_DESCRIPTION);
  luaA_enum_value(L,dt_collection_properties_t,DT_COLLECTION_PROP_CREATOR);
  luaA_enum_value(L,dt_collection_properties_t,DT_COLLECTION_PROP_PUBLISHER);
  luaA_enum_value(L,dt_collection_properties_t,DT_COLLECTION_PROP_RIGHTS);
  luaA_enum_value(L,dt_collection_properties_t,DT_COLLECTION_PROP_LENS);
  luaA_enum_value(L,dt_collection_properties_t,DT_COLLECTION_PROP_FOCAL_LENGTH);
  luaA_enum_value(L,dt_collection_properties_t,DT_COLLECTION_PROP_ISO);
  luaA_enum_value(L,dt_collection_properties_t,DT_COLLECTION_PROP_APERTURE);
  luaA_enum_value(L,dt_collection_properties_t,DT_COLLECTION_PROP_FILENAME);
  luaA_enum_value(L,dt_collection_properties_t,DT_COLLECTION_PROP_GEOTAGGING);

}
#endif
#undef MAX_RULES
// modelines: These editor modelines have been set for all relevant files by tools/update_modelines.sh
// vim: shiftwidth=2 expandtab tabstop=2 cindent
// kate: tab-indents: off; indent-width 2; replace-tabs on; indent-mode cstyle; remove-trailing-spaces modified;
