-
- g_type_class_add_private (klass, sizeof (GtkFontChooserPrivate));
-}
-
-static void
-gtk_font_chooser_set_property (GObject *object,
- guint prop_id,
- const GValue *value,
- GParamSpec *pspec)
-{
- GtkFontChooser *fontchooser;
-
- fontchooser = GTK_FONT_CHOOSER (object);
-
- switch (prop_id)
- {
- case PROP_FONT_NAME:
- gtk_font_chooser_set_font_name (fontchooser, g_value_get_string (value));
- break;
- case PROP_PREVIEW_TEXT:
- gtk_font_chooser_set_preview_text (fontchooser, g_value_get_string (value));
- break;
- case PROP_SHOW_PREVIEW_ENTRY:
- gtk_font_chooser_set_show_preview_entry (fontchooser, g_value_get_boolean (value));
- break;
- default:
- G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
- break;
- }
-}
-
-static void
-gtk_font_chooser_get_property (GObject *object,
- guint prop_id,
- GValue *value,
- GParamSpec *pspec)
-{
- GtkFontChooser *fontchooser;
-
- fontchooser = GTK_FONT_CHOOSER (object);
-
- switch (prop_id)
- {
- case PROP_FONT_NAME:
- g_value_take_string (value, gtk_font_chooser_get_font_name (fontchooser));
- break;
- case PROP_PREVIEW_TEXT:
- g_value_set_string (value, gtk_font_chooser_get_preview_text (fontchooser));
- break;
- case PROP_SHOW_PREVIEW_ENTRY:
- g_value_set_boolean (value, gtk_font_chooser_get_show_preview_entry (fontchooser));
- break;
- default:
- G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
- break;
- }
-}
-
-static void
-text_changed_cb (GtkEntry *entry,
- GParamSpec *pspec,
- GtkFontChooser *fc)
-{
- GtkFontChooserPrivate *priv = fc->priv;
- const gchar *text;
-
- text = gtk_entry_get_text (entry);
-
- if (text == NULL || text[0] == '\0')
- {
- GIcon *icon;
-
- 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);
- }
- else
- {
- if (!gtk_entry_get_icon_activatable (GTK_ENTRY (priv->search_entry), GTK_ENTRY_ICON_SECONDARY))
- {
- GIcon *icon;
-
- icon = g_themed_icon_new_with_default_fallbacks ("edit-clear-symbolic");
- g_object_set (G_OBJECT (priv->search_entry),
- "secondary-icon-gicon", icon,
- "secondary-icon-activatable", TRUE,
- "secondary-icon-sensitive", TRUE,
- NULL);
- g_object_unref (icon);
- }
- }
-
- gtk_tree_model_filter_refilter (GTK_TREE_MODEL_FILTER (priv->filter_model));
-}
-
-static void
-icon_press_cb (GtkEntry *entry,
- GtkEntryIconPosition pos,
- GdkEvent *event,
- gpointer user_data)
-{
- gtk_entry_set_text (entry, "");
-}
-
-static void
-slider_change_cb (GtkAdjustment *adjustment,
- gpointer user_data)
-{
- GtkFontChooser *fc = (GtkFontChooser*)user_data;
- GtkFontChooserPrivate *priv = fc->priv;
- GtkAdjustment *spin_adj = gtk_spin_button_get_adjustment(GTK_SPIN_BUTTON (priv->size_spin));
- gdouble slider_value = gtk_adjustment_get_value (adjustment);
- gdouble spin_value = gtk_adjustment_get_value (spin_adj);
-
- if (slider_value != spin_value)
- gtk_adjustment_set_value (spin_adj,
- gtk_adjustment_get_value (adjustment));
-}
-
-static void
-spin_change_cb (GtkAdjustment *adjustment,
- gpointer user_data)
-{
- PangoFontDescription *desc;
- GtkFontChooser *fontchooser = (GtkFontChooser*)user_data;
- GtkFontChooserPrivate *priv = fontchooser->priv;
- GtkAdjustment *slider_adj = gtk_range_get_adjustment (GTK_RANGE (priv->size_slider));
-
- gdouble size = gtk_adjustment_get_value (adjustment);
- priv->size = ((gint)size) * PANGO_SCALE;
-
- desc = pango_context_get_font_description (gtk_widget_get_pango_context (priv->preview));
- pango_font_description_set_size (desc, priv->size);
- gtk_widget_override_font (priv->preview, desc);
-
- g_object_notify (G_OBJECT (fontchooser), "font-name");
-
- /* If the new value is lower than the lower bound of the slider, we set
- * the slider adjustment to the lower bound value if it is not already set
- */
- if (size < gtk_adjustment_get_lower (slider_adj) &&
- gtk_adjustment_get_value (slider_adj) != gtk_adjustment_get_lower (slider_adj))
- gtk_adjustment_set_value (slider_adj, gtk_adjustment_get_lower (slider_adj));
-
- /* If the new value is upper than the upper bound of the slider, we set
- * the slider adjustment to the upper bound value if it is not already set
- */
- 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
-row_activated_cb (GtkTreeView *view,
- GtkTreePath *path,
- GtkTreeViewColumn *column,
- gpointer user_data)
-{
- GtkFontChooser *self = user_data;
- gchar *fontname;
-
- fontname = gtk_font_chooser_get_font_name (self);
-
- g_signal_emit (self, signals[SIGNAL_FONT_ACTIVATED], 0, fontname);
- g_free (fontname);
-}
-
-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);
-
- g_signal_connect (priv->family_face_list, "row-activated",
- G_CALLBACK (row_activated_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 ();