+/* PSPPIRE - a graphical user interface for PSPP.
+ Copyright (C) 2009 Free Software Foundation
+
+ 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 3 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, see <http://www.gnu.org/licenses/>. */
+
+#include <config.h>
+
+#include <gtk/gtktreeview.h>
+#include "psppire-dictview.h"
+#include "psppire-dict.h"
+#include "psppire-conf.h"
+#include <data/format.h>
+#include "helper.h"
+
+#include <gettext.h>
+#define _(msgid) gettext (msgid)
+#define N_(msgid) msgid
+
+static void psppire_dict_view_base_finalize (PsppireDictViewClass *, gpointer);
+static void psppire_dict_view_base_init (PsppireDictViewClass *class);
+static void psppire_dict_view_class_init (PsppireDictViewClass *class);
+static void psppire_dict_view_init (PsppireDictView *dict_view);
+
+
+GType
+psppire_dict_view_get_type (void)
+{
+ static GType psppire_dict_view_type = 0;
+
+ if (!psppire_dict_view_type)
+ {
+ static const GTypeInfo psppire_dict_view_info =
+ {
+ sizeof (PsppireDictViewClass),
+ (GBaseInitFunc) psppire_dict_view_base_init,
+ (GBaseFinalizeFunc) psppire_dict_view_base_finalize,
+ (GClassInitFunc)psppire_dict_view_class_init,
+ (GClassFinalizeFunc) NULL,
+ NULL,
+ sizeof (PsppireDictView),
+ 0,
+ (GInstanceInitFunc) psppire_dict_view_init,
+ };
+
+ psppire_dict_view_type =
+ g_type_register_static (GTK_TYPE_TREE_VIEW, "PsppireDictView",
+ &psppire_dict_view_info, 0);
+ }
+
+ return psppire_dict_view_type;
+}
+
+
+static void
+psppire_dict_view_finalize (GObject *object)
+{
+}
+
+/* Properties */
+enum
+{
+ PROP_0,
+ PROP_MODEL,
+ PROP_PREDICATE,
+ PROP_SELECTION_MODE
+};
+
+
+/* A GtkTreeModelFilterVisibleFunc to filter lines in the treeview */
+static gboolean
+filter_variables (GtkTreeModel *model, GtkTreeIter *iter, gpointer data)
+{
+ var_predicate_func *predicate = data;
+ struct variable *var;
+ PsppireDict *dict = PSPPIRE_DICT (model);
+
+ GtkTreePath *path = gtk_tree_model_get_path (model, iter);
+
+ gint *idx = gtk_tree_path_get_indices (path);
+
+ var = psppire_dict_get_variable (dict, *idx);
+
+ gtk_tree_path_free (path);
+
+ return predicate (var);
+}
+
+static void
+set_model (PsppireDictView *dict_view)
+{
+ GtkTreeModel *model ;
+
+ if ( dict_view->predicate )
+ {
+ model = gtk_tree_model_filter_new (GTK_TREE_MODEL (dict_view->dict),
+ NULL);
+
+ gtk_tree_model_filter_set_visible_func (GTK_TREE_MODEL_FILTER (model),
+ filter_variables,
+ dict_view->predicate,
+ NULL);
+ }
+ else
+ {
+ model = GTK_TREE_MODEL (dict_view->dict);
+ }
+
+ gtk_tree_view_set_model (GTK_TREE_VIEW (dict_view), model);
+}
+
+static void
+psppire_dict_view_set_property (GObject *object,
+ guint prop_id,
+ const GValue *value,
+ GParamSpec *pspec)
+{
+ PsppireDictView *dict_view = PSPPIRE_DICT_VIEW (object);
+
+ switch (prop_id)
+ {
+ case PROP_MODEL:
+ dict_view->dict = g_value_get_object (value);
+ break;
+ case PROP_PREDICATE:
+ dict_view->predicate = g_value_get_pointer (value);
+ break;
+ case PROP_SELECTION_MODE:
+ {
+ GtkTreeSelection *selection =
+ gtk_tree_view_get_selection (GTK_TREE_VIEW (dict_view));
+
+ GtkSelectionMode mode = g_value_get_enum (value);
+
+ gtk_tree_selection_set_mode (selection, mode);
+ }
+ break;
+ default:
+ G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
+ break;
+ };
+
+
+ set_model (dict_view);
+}
+
+
+static void
+psppire_dict_view_get_property (GObject *object,
+ guint prop_id,
+ GValue *value,
+ GParamSpec *pspec)
+{
+ PsppireDictView *dict_view = PSPPIRE_DICT_VIEW (object);
+
+ switch (prop_id)
+ {
+ case PROP_MODEL:
+ g_value_set_object (value, dict_view->dict);
+ break;
+ case PROP_PREDICATE:
+ g_value_set_pointer (value, dict_view->predicate);
+ break;
+ case PROP_SELECTION_MODE:
+ {
+ GtkTreeSelection *selection =
+ gtk_tree_view_get_selection (GTK_TREE_VIEW (dict_view));
+
+ g_value_set_enum (value, gtk_tree_selection_get_mode (selection));
+ }
+ default:
+ G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
+ break;
+ };
+}
+
+
+
+static void
+psppire_dict_view_class_init (PsppireDictViewClass *class)
+{
+ GObjectClass *object_class = G_OBJECT_CLASS (class);
+
+ GParamSpec *model_spec =
+ g_param_spec_object ("model",
+ "Model",
+ _("The dictionary to be displayed by this widget"),
+ G_TYPE_PSPPIRE_DICT,
+ G_PARAM_READABLE | G_PARAM_WRITABLE);
+
+ GParamSpec *predicate_spec =
+ g_param_spec_pointer ("predicate",
+ "Predicate",
+ _("A predicate function"),
+ G_PARAM_READABLE | G_PARAM_WRITABLE);
+
+
+ GParamSpec *selection_mode_spec =
+ g_param_spec_enum ("selection-mode",
+ "Selection Mode",
+ _("How many things can be selected"),
+ GTK_TYPE_SELECTION_MODE,
+ GTK_SELECTION_MULTIPLE,
+ G_PARAM_CONSTRUCT | G_PARAM_READABLE | G_PARAM_WRITABLE);
+
+
+ object_class->set_property = psppire_dict_view_set_property;
+ object_class->get_property = psppire_dict_view_get_property;
+
+ g_object_class_install_property (object_class,
+ PROP_MODEL,
+ model_spec);
+
+ g_object_class_install_property (object_class,
+ PROP_PREDICATE,
+ predicate_spec);
+
+ g_object_class_install_property (object_class,
+ PROP_SELECTION_MODE,
+ selection_mode_spec);
+}
+
+
+static void
+psppire_dict_view_base_init (PsppireDictViewClass *class)
+{
+ GObjectClass *object_class = G_OBJECT_CLASS (class);
+
+ object_class->finalize = psppire_dict_view_finalize;
+}
+
+
+
+static void
+psppire_dict_view_base_finalize(PsppireDictViewClass *class,
+ gpointer class_data)
+{
+
+}
+
+
+static void
+dv_get_base_model (GtkTreeModel *top_model, GtkTreeIter *top_iter,
+ GtkTreeModel **model, GtkTreeIter *iter
+ )
+{
+ *model = top_model;
+ *iter = *top_iter;
+ while (GTK_IS_TREE_MODEL_FILTER (*model))
+ {
+ GtkTreeIter parent_iter = *iter;
+ GtkTreeModelFilter *parent_model = GTK_TREE_MODEL_FILTER (*model);
+
+ *model = gtk_tree_model_filter_get_model (parent_model);
+
+ gtk_tree_model_filter_convert_iter_to_child_iter (parent_model,
+ iter,
+ &parent_iter);
+ }
+
+ g_assert (PSPPIRE_IS_DICT (*model));
+}
+
+
+
+/* A GtkTreeCellDataFunc which renders the name and/or label of the
+ variable */
+static void
+var_description_cell_data_func (GtkTreeViewColumn *col,
+ GtkCellRenderer *cell,
+ GtkTreeModel *top_model,
+ GtkTreeIter *top_iter,
+ gpointer data)
+{
+ struct variable *var;
+ GtkTreeIter iter;
+ GtkTreeModel *model;
+ gboolean prefer_labels = FALSE;
+
+ PsppireConf *conf = psppire_conf_new ();
+
+ psppire_conf_get_boolean (conf, "dialog-boxes", "prefer-labels",
+ &prefer_labels);
+
+ dv_get_base_model (top_model, top_iter, &model, &iter);
+
+ g_assert (PSPPIRE_IS_DICT (model));
+
+
+ gtk_tree_model_get (model,
+ &iter, DICT_TVM_COL_VAR, &var, -1);
+
+ if ( var_has_label (var) && prefer_labels)
+ {
+ gchar *text = g_strdup_printf (
+ "<span stretch=\"condensed\">%s</span>",
+ var_get_label (var));
+
+ char *utf8 = pspp_locale_to_utf8 (text, -1, NULL);
+
+ g_free (text);
+ g_object_set (cell, "markup", utf8, NULL);
+ g_free (utf8);
+ }
+ else
+ {
+ char *name = pspp_locale_to_utf8 (var_get_name (var), -1, NULL);
+ g_object_set (cell, "text", name, NULL);
+ g_free (name);
+ }
+}
+
+
+
+/* A GtkTreeCellDataFunc which sets the icon appropriate to the type
+ of variable */
+static void
+var_icon_cell_data_func (GtkTreeViewColumn *col,
+ GtkCellRenderer *cell,
+ GtkTreeModel *model,
+ GtkTreeIter *iter,
+ gpointer data)
+{
+ struct variable *var;
+ gtk_tree_model_get (model, iter, DICT_TVM_COL_VAR, &var, -1);
+
+ if ( var_is_alpha (var))
+ {
+ g_object_set (cell, "stock-id", "var-string", NULL);
+ }
+ else
+ {
+ const struct fmt_spec *fs = var_get_write_format (var);
+ int cat = fmt_get_category (fs->type);
+ switch ( var_get_measure (var))
+ {
+ case MEASURE_NOMINAL:
+ g_object_set (cell, "stock-id", "var-nominal", NULL);
+ break;
+ case MEASURE_ORDINAL:
+ g_object_set (cell, "stock-id", "var-ordinal", NULL);
+ break;
+ case MEASURE_SCALE:
+ if ( ( FMT_CAT_DATE | FMT_CAT_TIME ) & cat )
+ g_object_set (cell, "stock-id", "var-date-scale", NULL);
+ else
+ g_object_set (cell, "stock-id", "var-scale", NULL);
+ break;
+ default:
+ g_assert_not_reached ();
+ };
+ }
+}
+
+
+/* Sets the tooltip to be the name of the variable under the cursor */
+static gboolean
+set_tooltip_for_variable (GtkTreeView *treeview,
+ gint x,
+ gint y,
+ gboolean keyboard_mode,
+ GtkTooltip *tooltip,
+ gpointer user_data)
+
+{
+ gint bx, by;
+ GtkTreeIter iter;
+ GtkTreePath *path;
+ GtkTreeModel *tree_model;
+ struct variable *var = NULL;
+ gboolean ok;
+
+
+ gtk_tree_view_convert_widget_to_bin_window_coords (treeview,
+ x, y, &bx, &by);
+
+ if (!gtk_tree_view_get_path_at_pos (treeview, bx, by,
+ &path, NULL, NULL, NULL))
+ return FALSE;
+
+ tree_model = gtk_tree_view_get_model (treeview);
+
+
+ gtk_tree_view_set_tooltip_row (treeview, tooltip, path);
+
+ ok = gtk_tree_model_get_iter (tree_model, &iter, path);
+
+ gtk_tree_path_free (path);
+ if (!ok)
+ return FALSE;
+
+
+ gtk_tree_model_get (tree_model, &iter, DICT_TVM_COL_VAR, &var, -1);
+
+ if ( ! var_has_label (var))
+ return FALSE;
+
+ {
+ gchar *tip ;
+ gboolean prefer_labels = FALSE;
+
+ PsppireConf *conf = psppire_conf_new ();
+
+ psppire_conf_get_boolean (conf, "dialog-boxes", "prefer-labels",
+ &prefer_labels);
+
+ if ( prefer_labels )
+ tip = pspp_locale_to_utf8 (var_get_name (var), -1, NULL);
+ else
+ tip = pspp_locale_to_utf8 (var_get_label (var), -1, NULL);
+
+ gtk_tooltip_set_text (tooltip, tip);
+
+ g_free (tip);
+ }
+
+ return TRUE;
+}
+
+
+static void
+psppire_dict_view_init (PsppireDictView *dict_view)
+{
+ GtkTreeViewColumn *col;
+
+ GtkCellRenderer *renderer;
+
+ col = gtk_tree_view_column_new ();
+ gtk_tree_view_column_set_title (col, _("Variable"));
+
+ renderer = gtk_cell_renderer_pixbuf_new ();
+ gtk_tree_view_column_pack_start (col, renderer, FALSE);
+
+ gtk_tree_view_column_set_cell_data_func (col, renderer,
+ var_icon_cell_data_func,
+ NULL, NULL);
+
+
+ renderer = gtk_cell_renderer_text_new ();
+ gtk_tree_view_column_pack_start (col, renderer, TRUE);
+ gtk_tree_view_column_set_cell_data_func (col, renderer,
+ var_description_cell_data_func,
+ NULL, NULL);
+
+ g_object_set (renderer, "ellipsize-set", TRUE, NULL);
+ g_object_set (renderer, "ellipsize", PANGO_ELLIPSIZE_MIDDLE, NULL);
+
+ gtk_tree_view_column_set_sizing (col, GTK_TREE_VIEW_COLUMN_FIXED);
+
+ /* FIXME: make this a value in terms of character widths */
+ gtk_tree_view_column_set_min_width (col, 150);
+
+ gtk_tree_view_append_column (GTK_TREE_VIEW (dict_view), col);
+
+ g_object_set (dict_view, "has-tooltip", TRUE, NULL);
+
+ g_signal_connect (dict_view, "query-tooltip",
+ G_CALLBACK (set_tooltip_for_variable), NULL);
+}
+
+
+GtkWidget*
+psppire_dict_view_new (void)
+{
+ return GTK_WIDGET (g_object_new (psppire_dict_view_get_type (), NULL));
+}
+
+
+
+struct variable *
+psppire_dict_view_get_selected_variable (PsppireDictView *treeview)
+{
+ struct variable *var;
+ GtkTreeModel *top_model;
+ GtkTreeIter top_iter;
+
+ GtkTreeModel *model;
+ GtkTreeIter iter;
+
+ GtkTreeSelection *selection =
+ gtk_tree_view_get_selection (GTK_TREE_VIEW (treeview));
+
+ if (! gtk_tree_selection_get_selected (selection,
+ &top_model, &top_iter))
+ {
+ return NULL;
+ }
+
+ dv_get_base_model (top_model, &top_iter, &model, &iter);
+
+ g_assert (PSPPIRE_IS_DICT (model));
+
+ gtk_tree_model_get (model,
+ &iter, DICT_TVM_COL_VAR, &var, -1);
+
+ return var;
+}
+
+