- else if (size > gtk_adjustment_get_upper (slider_adj) &&
- gtk_adjustment_get_value (slider_adj) != gtk_adjustment_get_upper (slider_adj))
- gtk_adjustment_set_value (slider_adj, gtk_adjustment_get_upper (slider_adj));
-
- /* If the new value is not already set on the slider we set it */
- else if (size != gtk_adjustment_get_value (slider_adj))
- gtk_adjustment_set_value (slider_adj, size);
-
- gtk_widget_queue_draw (priv->preview);
-}
-
-static void
-set_range_marks (GtkFontChooserPrivate *priv,
- GtkWidget *size_slider,
- gint *sizes,
- gint length)
-{
- GtkAdjustment *adj;
- gint i;
- gdouble value;
-
- if (length < 2)
- {
- sizes = (gint*)font_sizes;
- length = G_N_ELEMENTS (font_sizes);
- }
-
- gtk_scale_clear_marks (GTK_SCALE (size_slider));
-
- adj = gtk_range_get_adjustment(GTK_RANGE (size_slider));
-
- gtk_adjustment_set_lower (adj, (gdouble) sizes[0]);
- gtk_adjustment_set_upper (adj, (gdouble) sizes[length-1]);
-
- value = gtk_adjustment_get_value (adj);
- if (value > (gdouble) sizes[length-1])
- gtk_adjustment_set_value (adj, (gdouble) sizes[length-1]);
- else if (value < (gdouble) sizes[0])
- gtk_adjustment_set_value (adj, (gdouble) sizes[0]);
-
- for (i = 0; i < length; i++)
- gtk_scale_add_mark (GTK_SCALE (size_slider),
- (gdouble) sizes[i],
- GTK_POS_BOTTOM, NULL);
-}
-
-static void
-cursor_changed_cb (GtkTreeView *treeview,
- gpointer user_data)
-{
- GtkFontChooser *fontchooser = (GtkFontChooser*)user_data;
- GtkFontChooserPrivate *priv = fontchooser->priv;
-
- PangoFontFamily *family;
- PangoFontFace *face;
- PangoFontDescription *desc;
-
- gint *sizes;
- gint i, n_sizes;
-
- GtkTreeIter iter;
- GtkTreePath *path = gtk_tree_path_new ();
-
- gtk_tree_view_get_cursor (treeview, &path, NULL);
-
- if (!path)
- return;
-
- if (!gtk_tree_model_get_iter (GTK_TREE_MODEL (priv->filter_model), &iter, path))
- {
- gtk_tree_path_free (path);
- return;
- }
-
-
- gtk_tree_model_get (GTK_TREE_MODEL (priv->filter_model), &iter,
- FACE_COLUMN, &face,
- FAMILY_COLUMN, &family,
- -1);
-
- gtk_tree_view_scroll_to_cell (treeview, path, NULL, FALSE, 0.5, 0.5);
-
- gtk_tree_path_free (path);
- path = NULL;
-
- if (face == NULL || family == NULL)
- {
- if (face)
- g_object_unref (face);
- if (family)
- g_object_unref (family);
-
- return;
- }
-
- desc = pango_font_face_describe (face);
- pango_font_description_set_size (desc, priv->size);
- gtk_widget_override_font (priv->preview, desc);
-
- pango_font_face_list_sizes (face, &sizes, &n_sizes);
- /* It seems not many fonts actually have a sane set of sizes */
- for (i = 0; i < n_sizes; i++)
- sizes[i] = sizes[i] / PANGO_SCALE;
-
- set_range_marks (priv, priv->size_slider, sizes, n_sizes);
-
- if (priv->family)
- g_object_unref (priv->family);
- priv->family = family;
-
- if (priv->face)
- g_object_unref (priv->face);
- priv->face = face;
-
- pango_font_description_free (desc);
-
- g_object_notify (G_OBJECT (fontchooser), "font-name");
-}
-
-static gboolean
-zoom_preview_cb (GtkWidget *scrolled_window,
- GdkEventScroll *event,
- gpointer user_data)
-{
- GtkFontChooser *fc = (GtkFontChooser*)user_data;
- GtkFontChooserPrivate *priv = fc->priv;
-
- GtkAdjustment *adj = gtk_spin_button_get_adjustment (GTK_SPIN_BUTTON (priv->size_spin));
-
- if (event->direction == GDK_SCROLL_UP || event->direction == GDK_SCROLL_RIGHT)
- gtk_adjustment_set_value (adj,
- gtk_adjustment_get_value (adj) +
- gtk_adjustment_get_step_increment (adj));
- else if (event->direction == GDK_SCROLL_DOWN || event->direction == GDK_SCROLL_LEFT)
- gtk_adjustment_set_value (adj,
- gtk_adjustment_get_value (adj) -
- gtk_adjustment_get_step_increment (adj));
- return TRUE;
-}
-
-static void
-row_inserted_cb (GtkTreeModel *model,
- GtkTreePath *path,
- GtkTreeIter *iter,
- gpointer user_data)
-{
- GtkFontChooser *fontchooser = (GtkFontChooser*)user_data;
- GtkFontChooserPrivate *priv = fontchooser->priv;
-
- gtk_notebook_set_current_page (GTK_NOTEBOOK (priv->list_notebook), 0);
-}
-
-static void
-row_deleted_cb (GtkTreeModel *model,
- GtkTreePath *path,
- gpointer user_data)
-{
- GtkFontChooser *fontchooser = (GtkFontChooser*)user_data;
- GtkFontChooserPrivate *priv = fontchooser->priv;
-
- if (gtk_tree_model_iter_n_children (model, NULL) == 0)
- gtk_notebook_set_current_page (GTK_NOTEBOOK (priv->list_notebook), 1);
-}
-
-static void
-gtk_font_chooser_init (GtkFontChooser *fontchooser)
-{
- GIcon *icon;
- GtkFontChooserPrivate *priv;
- PangoFontDescription *font_desc;
- GtkWidget *scrolled_win;
- GtkWidget *grid;
-
- fontchooser->priv = G_TYPE_INSTANCE_GET_PRIVATE (fontchooser,
- GTK_TYPE_FONT_CHOOSER,
- GtkFontChooserPrivate);
-
- priv = fontchooser->priv;
-
- /* Default preview string */
- priv->preview_text = g_strdup (pango_language_get_sample_string (NULL));
- priv->show_preview_entry = TRUE;
-
- /* Getting the default size */
- font_desc = pango_context_get_font_description (gtk_widget_get_pango_context (GTK_WIDGET (fontchooser)));
- priv->size = pango_font_description_get_size (font_desc);
- priv->face = NULL;
- priv->family = NULL;
-
- gtk_widget_push_composite_child ();
-
- /* Creating fundamental widgets for the private struct */
- priv->search_entry = gtk_entry_new ();
- priv->family_face_list = gtk_tree_view_new ();
- priv->preview = gtk_entry_new ();
- priv->size_slider = gtk_scale_new_with_range (GTK_ORIENTATION_HORIZONTAL,
- (gdouble) font_sizes[0],
- (gdouble) font_sizes[G_N_ELEMENTS (font_sizes) - 1],
- 1.0);
-
- priv->size_spin = gtk_spin_button_new_with_range (0.0, (gdouble)(G_MAXINT / PANGO_SCALE), 1.0);
-
- /** Bootstrapping widget layout **/
- gtk_box_set_spacing (GTK_BOX (fontchooser), 6);
-
- /* Main font family/face view */
- priv->list_scrolled_window = gtk_scrolled_window_new (NULL, NULL);
- scrolled_win = priv->list_scrolled_window;
- gtk_scrolled_window_set_policy (GTK_SCROLLED_WINDOW (scrolled_win),
- GTK_POLICY_NEVER, GTK_POLICY_AUTOMATIC);
- gtk_scrolled_window_set_shadow_type (GTK_SCROLLED_WINDOW (scrolled_win),
- GTK_SHADOW_ETCHED_IN);
- gtk_widget_set_size_request (scrolled_win, 400, 300);
- gtk_container_add (GTK_CONTAINER (scrolled_win), priv->family_face_list);
-
- /* Text to display when list is empty */
- priv->empty_list = gtk_label_new (_(NO_FONT_MATCHED_SEARCH));
- gtk_widget_set_margin_top (priv->empty_list, 12);
- gtk_widget_set_margin_left (priv->empty_list, 12);
- gtk_widget_set_margin_right (priv->empty_list, 12);
- gtk_widget_set_margin_bottom (priv->empty_list, 12);
- gtk_widget_set_halign (priv->empty_list, GTK_ALIGN_CENTER);
- gtk_widget_set_valign (priv->empty_list, GTK_ALIGN_START);
-
- priv->list_notebook = gtk_notebook_new ();
- gtk_notebook_set_show_tabs (GTK_NOTEBOOK (priv->list_notebook), FALSE);
- gtk_notebook_append_page (GTK_NOTEBOOK (priv->list_notebook), scrolled_win, NULL);
- gtk_notebook_append_page (GTK_NOTEBOOK (priv->list_notebook), priv->empty_list, NULL);
-
- /* Basic layout */
- grid = gtk_grid_new ();
-
- gtk_grid_set_column_spacing (GTK_GRID (grid), 6);
- gtk_grid_set_row_spacing (GTK_GRID (grid), 6);
-
- gtk_grid_attach (GTK_GRID (grid), priv->search_entry, 0, 0, 2, 1);
- gtk_grid_attach (GTK_GRID (grid), priv->list_notebook, 0, 1, 2, 1);
- gtk_grid_attach (GTK_GRID (grid), priv->preview, 0, 2, 2, 1);
-
- gtk_grid_attach (GTK_GRID (grid), priv->size_slider, 0, 3, 1, 1);
- gtk_grid_attach (GTK_GRID (grid), priv->size_spin, 1, 3, 1, 1);
-
- gtk_widget_set_hexpand (GTK_WIDGET (scrolled_win), TRUE);
- gtk_widget_set_vexpand (GTK_WIDGET (scrolled_win), TRUE);
- gtk_widget_set_hexpand (GTK_WIDGET (priv->search_entry), TRUE);
-
- gtk_widget_set_hexpand (GTK_WIDGET (priv->size_slider), TRUE);
- gtk_widget_set_hexpand (GTK_WIDGET (priv->size_spin), FALSE);
-
- gtk_box_pack_start (GTK_BOX (fontchooser), grid, TRUE, TRUE, 0);
-
- /* Setting the adjustment values for the size slider */
- gtk_adjustment_set_value (gtk_range_get_adjustment (GTK_RANGE (priv->size_slider)),
- (gdouble)(priv->size / PANGO_SCALE));
- gtk_adjustment_set_value (gtk_spin_button_get_adjustment (GTK_SPIN_BUTTON (priv->size_spin)),
- (gdouble)(priv->size / PANGO_SCALE));
-
- gtk_widget_show_all (GTK_WIDGET (fontchooser));
- gtk_widget_hide (GTK_WIDGET (fontchooser));
-
- /* Treeview column and model bootstrapping */
- gtk_font_chooser_bootstrap_fontlist (fontchooser);
-
- /* Set default preview text */
- gtk_entry_set_text (GTK_ENTRY (priv->preview),
- pango_language_get_sample_string (NULL));
-
- /* Set search icon and place holder text */
- icon = g_themed_icon_new_with_default_fallbacks ("edit-find-symbolic");
- g_object_set (G_OBJECT (priv->search_entry),
- "secondary-icon-gicon", icon,
- "secondary-icon-activatable", FALSE,
- "secondary-icon-sensitive", FALSE,
- NULL);
- g_object_unref (icon);
-
- gtk_entry_set_placeholder_text (GTK_ENTRY (priv->search_entry), _("Search font name"));
-
- /** Callback connections **/
- g_signal_connect (priv->search_entry, "notify::text",
- G_CALLBACK (text_changed_cb), fontchooser);
- g_signal_connect (priv->search_entry,
- "icon-press", G_CALLBACK (icon_press_cb), NULL);
-
- g_signal_connect (gtk_range_get_adjustment (GTK_RANGE (priv->size_slider)),
- "value-changed", G_CALLBACK (slider_change_cb), fontchooser);
- g_signal_connect (gtk_spin_button_get_adjustment (GTK_SPIN_BUTTON (priv->size_spin)),
- "value-changed", G_CALLBACK (spin_change_cb), fontchooser);
-
- priv->cursor_changed_handler =
- g_signal_connect (priv->family_face_list, "cursor-changed",
- G_CALLBACK (cursor_changed_cb), fontchooser);
-
- /* Zoom on preview scroll*/
- g_signal_connect (priv->preview, "scroll-event",
- G_CALLBACK (zoom_preview_cb), fontchooser);
-
- g_signal_connect (priv->size_slider, "scroll-event",
- G_CALLBACK (zoom_preview_cb), fontchooser);
-
- set_range_marks (priv, priv->size_slider, (gint*)font_sizes, G_N_ELEMENTS (font_sizes));
-
- /* Font list empty hides the scrolledwindow */
- g_signal_connect (G_OBJECT (priv->filter_model), "row-deleted",
- G_CALLBACK (row_deleted_cb), fontchooser);
- g_signal_connect (G_OBJECT (priv->filter_model), "row-inserted",
- G_CALLBACK (row_inserted_cb), fontchooser);
-
- /* Set default focus */
- gtk_widget_pop_composite_child ();
-}
-
-/**
- * gtk_font_chooser_new:
- *
- * Creates a new #GtkFontChooser.
- *
- * Return value: a new #GtkFontChooser
- *
- * Since: 3.2
- */
-GtkWidget *
-gtk_font_chooser_new (void)
-{
- GtkFontChooser *fontchooser;
-
- fontchooser = g_object_new (GTK_TYPE_FONT_CHOOSER, NULL);
-
- return GTK_WIDGET (fontchooser);
-}
-
-static int
-cmp_families (const void *a,
- const void *b)
-{
- const char *a_name = pango_font_family_get_name (*(PangoFontFamily **)a);
- const char *b_name = pango_font_family_get_name (*(PangoFontFamily **)b);
-
- return g_utf8_collate (a_name, b_name);
-}
-
-static void
-populate_list (GtkFontChooser *fontchooser,
- GtkTreeView *treeview,
- GtkListStore *model)
-{
- GtkFontChooserPrivate *priv = fontchooser->priv;
- GtkStyleContext *style_context;
- PangoFontDescription *default_font;
- PangoFontDescription *selected_font;
-
- gint match;
- GtkTreeIter match_row;
- GtkTreePath *path;
-
- gint n_families, i;
- PangoFontFamily **families;
- GString *tmp;
- GString *family_and_face;
-
- if (!gtk_widget_has_screen (GTK_WIDGET (fontchooser)))
- return;
-
- tmp = g_string_new (NULL);
- family_and_face = g_string_new (NULL);
-
- pango_context_list_families (gtk_widget_get_pango_context (GTK_WIDGET (treeview)),
- &families,
- &n_families);
-
- qsort (families, n_families, sizeof (PangoFontFamily *), cmp_families);
-
- /* Get theme font */
- style_context = gtk_widget_get_style_context (GTK_WIDGET (treeview));
- default_font = (PangoFontDescription*) gtk_style_context_get_font (style_context,
- GTK_STATE_NORMAL);
-
- if (priv->face)
- selected_font = pango_font_face_describe (priv->face);
- else
- selected_font = NULL;
-
- gtk_list_store_clear (model);
-
- match = 0;
-
- /* Iterate over families and faces */
- for (i = 0; i < n_families; i++)
- {
- GtkTreeIter iter;
- PangoFontFace **faces;
- int j, n_faces;
- const gchar *fam_name = pango_font_family_get_name (families[i]);
-
- pango_font_family_list_faces (families[i], &faces, &n_faces);
-
- for (j = 0; j < n_faces; j++)
- {
- PangoFontDescription *pango_desc;
- const gchar *face_name;
- gchar *font_desc;
-
- if (priv->filter_func != NULL &&
- !priv->filter_func (families[i], faces[j], priv->filter_data))
- continue;
-
- pango_desc = pango_font_face_describe (faces[j]);
- face_name = pango_font_face_get_face_name (faces[j]);
- font_desc = pango_font_description_to_string (pango_desc);
-
- g_string_printf (family_and_face, "%s %s", fam_name, face_name);
- g_string_printf (tmp, ROW_FORMAT_STRING,
- family_and_face->str,
- font_desc,
- fontchooser->priv->preview_text);
-
- gtk_list_store_append (model, &iter);
- gtk_list_store_set (model, &iter,
- FAMILY_COLUMN, families[i],
- FACE_COLUMN, faces[j],
- PREVIEW_TITLE_COLUMN, family_and_face->str,
- PREVIEW_TEXT_COLUMN, tmp->str,
- -1);
-
- /* Select the current font,
- * the default font/face from the theme,
- * or the first font
- */
- if (match < 3 &&
- selected_font != NULL &&
- pango_font_description_equal (selected_font, pango_desc))
- {
- match_row = iter;
- match = 3;
- }
- if (match < 2 &&
- strcmp (fam_name, pango_font_description_get_family (default_font)) == 0)
- {
- match_row = iter;
- match = 2;
- }
- if (match < 1)
- {
- match_row = iter;
- match = 1;
- }
-
- pango_font_description_free (pango_desc);
- g_free (font_desc);
- }
-
- g_free (faces);
- }
-
- path = gtk_tree_model_get_path (GTK_TREE_MODEL (model), &match_row);
- if (path)
- {
- gtk_tree_view_set_cursor (treeview, path, NULL, FALSE);
- gtk_tree_view_scroll_to_cell (treeview, path, NULL, FALSE, 0.5, 0.5);
- gtk_tree_path_free (path);
- }
-
- if (selected_font)
- pango_font_description_free (selected_font);
-
- g_string_free (family_and_face, TRUE);
- g_string_free (tmp, TRUE);
- g_free (families);
-}
-
-static gboolean
-visible_func (GtkTreeModel *model,
- GtkTreeIter *iter,
- gpointer user_data)
-{
- gboolean result = TRUE;
- GtkFontChooserPrivate *priv = (GtkFontChooserPrivate*)user_data;
-
- const gchar *search_text = (const gchar*)gtk_entry_get_text (GTK_ENTRY (priv->search_entry));
- gchar *font_name;
- gchar *term;
- gchar **split_terms;
- gint n_terms = 0;
-
- /* If there's no filter string we show the item */
- if (strlen (search_text) == 0)
- return TRUE;
-
- gtk_tree_model_get (model, iter,
- PREVIEW_TITLE_COLUMN, &font_name,
- -1);
-
- if (font_name == NULL)
- return FALSE;
-
- split_terms = g_strsplit (search_text, " ", 0);
- term = split_terms[0];
-
- while (term && result)
- {
- gchar* font_name_casefold = g_utf8_casefold (font_name, -1);
- gchar* term_casefold = g_utf8_casefold (term, -1);
-
- if (g_strrstr (font_name_casefold, term_casefold))
- result = result && TRUE;
- else
- result = FALSE;
-
- n_terms++;
- term = split_terms[n_terms];
-
- g_free (term_casefold);
- g_free (font_name_casefold);
- }
-
- g_free (font_name);
- g_strfreev (split_terms);
-
- return result;
-}
-
-static void
-gtk_font_chooser_bootstrap_fontlist (GtkFontChooser *fontchooser)
-{
- GtkFontChooserPrivate *priv = fontchooser->priv;
- GtkTreeView *treeview = GTK_TREE_VIEW (priv->family_face_list);
- GtkCellRenderer *cell;
- GtkTreeViewColumn *col;
-
- priv->model = gtk_list_store_new (4,
- PANGO_TYPE_FONT_FAMILY,
- PANGO_TYPE_FONT_FACE,
- G_TYPE_STRING,
- G_TYPE_STRING);
-
- priv->filter_model = gtk_tree_model_filter_new (GTK_TREE_MODEL (priv->model), NULL);
- g_object_unref (priv->model);
-
- gtk_tree_model_filter_set_visible_func (GTK_TREE_MODEL_FILTER (priv->filter_model),
- visible_func, (gpointer)priv, NULL);
-
- gtk_tree_view_set_model (treeview, GTK_TREE_MODEL (priv->filter_model));
- g_object_unref (priv->filter_model);
-
- gtk_tree_view_set_rules_hint (treeview, TRUE);
- gtk_tree_view_set_headers_visible (treeview, FALSE);
-
- cell = gtk_cell_renderer_text_new ();
- col = gtk_tree_view_column_new_with_attributes ("Family",
- cell,
- "markup", PREVIEW_TEXT_COLUMN,
- NULL);
-
- g_object_set (cell, "ellipsize", PANGO_ELLIPSIZE_END, NULL);
-
- gtk_tree_view_append_column (treeview, col);
-
- populate_list (fontchooser, treeview, priv->model);
-}
-
-static void
-gtk_font_chooser_dispose (GObject *object)
-{
- GtkFontChooser *fontchooser = GTK_FONT_CHOOSER (object);
- GtkFontChooserPrivate *priv = fontchooser->priv;
-
- if (priv->cursor_changed_handler != 0)
- {
- g_signal_handler_disconnect (priv->family_face_list,
- priv->cursor_changed_handler);
- priv->cursor_changed_handler = 0;
- }
-
- G_OBJECT_CLASS (gtk_font_chooser_parent_class)->dispose (object);
-}
-
-static void
-gtk_font_chooser_finalize (GObject *object)
-{
- GtkFontChooser *fontchooser = GTK_FONT_CHOOSER (object);
- GtkFontChooserPrivate *priv = fontchooser->priv;
-
- if (priv->family)
- g_object_unref (priv->family);
-
- if (priv->face)
- g_object_unref (priv->face);
-
- if (priv->filter_data_destroy)
- priv->filter_data_destroy (priv->filter_data);
-
- G_OBJECT_CLASS (gtk_font_chooser_parent_class)->finalize (object);
-}
-
-static void
-gtk_font_chooser_screen_changed (GtkWidget *widget,
- GdkScreen *previous_screen)
-{
- GtkFontChooser *fontchooser = GTK_FONT_CHOOSER (widget);
-
- populate_list (fontchooser,
- GTK_TREE_VIEW (fontchooser->priv->family_face_list),
- fontchooser->priv->model);
-}
-
-static void
-gtk_font_chooser_style_updated (GtkWidget *widget)
-{
- GtkFontChooser *fontchooser = GTK_FONT_CHOOSER (widget);
-
- GTK_WIDGET_CLASS (gtk_font_chooser_parent_class)->style_updated (widget);
-
- populate_list (fontchooser,
- GTK_TREE_VIEW (fontchooser->priv->family_face_list),
- fontchooser->priv->model);