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GtkFontChooserWidget: Define children with a GtkBuilder template

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This commit is contained in:
Tristan Van Berkom
2013-03-26 18:50:01 +09:00
parent b537e1badd
commit 21391027c4
5 changed files with 278 additions and 174 deletions
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249
gtk/gtkfontchooserwidget.c
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@ -75,9 +75,9 @@ struct _GtkFontChooserWidgetPrivate
{
GtkWidget *search_entry;
GtkWidget *family_face_list;
GtkTreeViewColumn *family_face_column;
GtkCellRenderer *family_face_cell;
GtkWidget *list_scrolled_window;
GtkWidget *empty_list;
GtkWidget *list_notebook;
GtkTreeModel *model;
GtkTreeModel *filter_model;
@ -107,8 +107,7 @@ struct _GtkFontChooserWidgetPrivate
#define FONT_STYLE_LIST_WIDTH 170
#define FONT_SIZE_LIST_WIDTH 60
#define NO_FONT_MATCHED_SEARCH N_("No fonts matched your search. You can revise your search and try again.")
/* Keep in line with GtkTreeStore defined in gtkfontchooserwidget.ui */
enum {
FAMILY_COLUMN,
FACE_COLUMN,
@ -129,8 +128,6 @@ static void gtk_font_chooser_widget_finalize (GObject *objec
static void gtk_font_chooser_widget_screen_changed (GtkWidget *widget,
GdkScreen *previous_screen);
static void gtk_font_chooser_widget_bootstrap_fontlist (GtkFontChooserWidget *fontchooser);
static gboolean gtk_font_chooser_widget_find_font (GtkFontChooserWidget *fontchooser,
const PangoFontDescription *font_desc,
GtkTreeIter *iter);
@ -156,29 +153,23 @@ static gboolean gtk_font_chooser_widget_get_show_preview_entry (GtkFontChooserWi
static void gtk_font_chooser_widget_set_show_preview_entry (GtkFontChooserWidget *fontchooser,
gboolean show_preview_entry);
static void gtk_font_chooser_widget_set_cell_size (GtkFontChooserWidget *fontchooser);
static void gtk_font_chooser_widget_load_fonts (GtkFontChooserWidget *fontchooser);
static gboolean visible_func (GtkTreeModel *model,
GtkTreeIter *iter,
gpointer user_data);
static void gtk_font_chooser_widget_cell_data_func (GtkTreeViewColumn *column,
GtkCellRenderer *cell,
GtkTreeModel *tree_model,
GtkTreeIter *iter,
gpointer user_data);
static void gtk_font_chooser_widget_iface_init (GtkFontChooserIface *iface);
G_DEFINE_TYPE_WITH_CODE (GtkFontChooserWidget, gtk_font_chooser_widget, GTK_TYPE_BOX,
G_IMPLEMENT_INTERFACE (GTK_TYPE_FONT_CHOOSER,
gtk_font_chooser_widget_iface_init))
static void
gtk_font_chooser_widget_class_init (GtkFontChooserWidgetClass *klass)
{
GObjectClass *gobject_class = G_OBJECT_CLASS (klass);
GtkWidgetClass *widget_class = GTK_WIDGET_CLASS (klass);
widget_class->screen_changed = gtk_font_chooser_widget_screen_changed;
gobject_class->finalize = gtk_font_chooser_widget_finalize;
gobject_class->set_property = gtk_font_chooser_widget_set_property;
gobject_class->get_property = gtk_font_chooser_widget_get_property;
_gtk_font_chooser_install_properties (gobject_class);
g_type_class_add_private (klass, sizeof (GtkFontChooserWidgetPrivate));
}
static void
gtk_font_chooser_widget_set_property (GObject *object,
guint prop_id,
@ -463,12 +454,54 @@ row_deleted_cb (GtkTreeModel *model,
gtk_notebook_set_current_page (GTK_NOTEBOOK (priv->list_notebook), 1);
}
static void
gtk_font_chooser_widget_class_init (GtkFontChooserWidgetClass *klass)
{
GObjectClass *gobject_class = G_OBJECT_CLASS (klass);
GtkWidgetClass *widget_class = GTK_WIDGET_CLASS (klass);
widget_class->screen_changed = gtk_font_chooser_widget_screen_changed;
gobject_class->finalize = gtk_font_chooser_widget_finalize;
gobject_class->set_property = gtk_font_chooser_widget_set_property;
gobject_class->get_property = gtk_font_chooser_widget_get_property;
_gtk_font_chooser_install_properties (gobject_class);
/* Bind class to template
*/
gtk_widget_class_set_template_from_resource (widget_class,
"/org/gtk/libgtk/gtkfontchooserwidget.ui");
gtk_widget_class_bind_child (widget_class, GtkFontChooserWidgetPrivate, search_entry);
gtk_widget_class_bind_child (widget_class, GtkFontChooserWidgetPrivate, family_face_list);
gtk_widget_class_bind_child (widget_class, GtkFontChooserWidgetPrivate, family_face_column);
gtk_widget_class_bind_child (widget_class, GtkFontChooserWidgetPrivate, family_face_cell);
gtk_widget_class_bind_child (widget_class, GtkFontChooserWidgetPrivate, list_scrolled_window);
gtk_widget_class_bind_child (widget_class, GtkFontChooserWidgetPrivate, list_notebook);
gtk_widget_class_bind_child (widget_class, GtkFontChooserWidgetPrivate, model);
gtk_widget_class_bind_child (widget_class, GtkFontChooserWidgetPrivate, filter_model);
gtk_widget_class_bind_child (widget_class, GtkFontChooserWidgetPrivate, preview);
gtk_widget_class_bind_child (widget_class, GtkFontChooserWidgetPrivate, size_spin);
gtk_widget_class_bind_child (widget_class, GtkFontChooserWidgetPrivate, size_slider);
gtk_widget_class_bind_callback (widget_class, text_changed_cb);
gtk_widget_class_bind_callback (widget_class, cursor_changed_cb);
gtk_widget_class_bind_callback (widget_class, row_activated_cb);
gtk_widget_class_bind_callback (widget_class, gtk_font_chooser_widget_set_cell_size);
gtk_widget_class_bind_callback (widget_class, zoom_preview_cb);
gtk_widget_class_bind_callback (widget_class, row_deleted_cb);
gtk_widget_class_bind_callback (widget_class, row_inserted_cb);
gtk_widget_class_bind_callback (widget_class, row_deleted_cb);
gtk_widget_class_bind_callback (widget_class, size_change_cb);
g_type_class_add_private (klass, sizeof (GtkFontChooserWidgetPrivate));
}
static void
gtk_font_chooser_widget_init (GtkFontChooserWidget *fontchooser)
{
GtkFontChooserWidgetPrivate *priv;
GtkWidget *scrolled_win;
GtkWidget *grid;
fontchooser->priv = G_TYPE_INSTANCE_GET_PRIVATE (fontchooser,
GTK_TYPE_FONT_CHOOSER_WIDGET,
@ -476,115 +509,36 @@ gtk_font_chooser_widget_init (GtkFontChooserWidget *fontchooser)
priv = fontchooser->priv;
gtk_widget_init_template (GTK_WIDGET (fontchooser));
/* Default preview string */
priv->preview_text = g_strdup (pango_language_get_sample_string (NULL));
priv->show_preview_entry = TRUE;
priv->font_desc = pango_font_description_new ();
gtk_widget_push_composite_child ();
/* Creating fundamental widgets for the private struct */
priv->search_entry = gtk_search_entry_new ();
priv->family_face_list = gtk_tree_view_new ();
gtk_tree_view_set_enable_search (GTK_TREE_VIEW (priv->family_face_list), FALSE);
priv->preview = gtk_entry_new ();
priv->size_slider = gtk_scale_new_with_range (GTK_ORIENTATION_HORIZONTAL,
0.0,
(gdouble)(G_MAXINT / PANGO_SCALE),
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);
gtk_widget_show_all (GTK_WIDGET (fontchooser));
gtk_widget_hide (GTK_WIDGET (fontchooser));
/* Treeview column and model bootstrapping */
gtk_font_chooser_widget_bootstrap_fontlist (fontchooser);
/* Set default preview text */
gtk_entry_set_text (GTK_ENTRY (priv->preview),
pango_language_get_sample_string (NULL));
gtk_entry_set_placeholder_text (GTK_ENTRY (priv->search_entry), _("Search font name"));
/* Set the upper values of the spin/scale with G_MAXINT / PANGO_SCALE */
gtk_spin_button_set_range (GTK_SPIN_BUTTON (priv->size_spin),
0.0, (gdouble)(G_MAXINT / PANGO_SCALE));
gtk_adjustment_set_upper (gtk_range_get_adjustment (GTK_RANGE (priv->size_slider)),
(gdouble)(G_MAXINT / PANGO_SCALE));
/* Callback connections */
g_signal_connect (priv->search_entry, "notify::text",
G_CALLBACK (text_changed_cb), fontchooser);
/* Setup treeview/model auxilary functions */
gtk_tree_model_filter_set_visible_func (GTK_TREE_MODEL_FILTER (priv->filter_model),
visible_func, (gpointer)priv, NULL);
g_signal_connect (gtk_range_get_adjustment (GTK_RANGE (priv->size_slider)),
"value-changed", G_CALLBACK (size_change_cb), fontchooser);
g_signal_connect (gtk_spin_button_get_adjustment (GTK_SPIN_BUTTON (priv->size_spin)),
"value-changed", G_CALLBACK (size_change_cb), fontchooser);
gtk_tree_view_column_set_cell_data_func (priv->family_face_column,
priv->family_face_cell,
gtk_font_chooser_widget_cell_data_func,
fontchooser,
NULL);
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);
/* 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 ();
/* Load data and set initial style dependant parameters */
gtk_font_chooser_widget_load_fonts (fontchooser);
gtk_font_chooser_widget_set_cell_size (fontchooser);
gtk_font_chooser_widget_take_font_desc (fontchooser, NULL);
}
@ -851,59 +805,6 @@ gtk_font_chooser_widget_set_cell_size (GtkFontChooserWidget *fontchooser)
gtk_cell_renderer_set_fixed_size (priv->family_face_cell, size.width, size.height);
}
static void
gtk_font_chooser_widget_bootstrap_fontlist (GtkFontChooserWidget *fontchooser)
{
GtkFontChooserWidgetPrivate *priv = fontchooser->priv;
GtkTreeView *treeview = GTK_TREE_VIEW (priv->family_face_list);
GtkTreeViewColumn *col;
g_signal_connect_data (priv->family_face_list,
"style-updated",
G_CALLBACK (gtk_font_chooser_widget_set_cell_size),
fontchooser,
NULL,
G_CONNECT_AFTER | G_CONNECT_SWAPPED);
priv->model = GTK_TREE_MODEL (gtk_list_store_new (4,
PANGO_TYPE_FONT_FAMILY,
PANGO_TYPE_FONT_FACE,
PANGO_TYPE_FONT_DESCRIPTION,
G_TYPE_STRING));
priv->filter_model = gtk_tree_model_filter_new (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, 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);
gtk_tree_view_set_fixed_height_mode (treeview, TRUE);
priv->family_face_cell = gtk_cell_renderer_text_new ();
g_object_set (priv->family_face_cell, "ellipsize", PANGO_ELLIPSIZE_END, NULL);
col = gtk_tree_view_column_new ();
gtk_tree_view_column_set_title (col, _("Font Family"));
gtk_tree_view_column_set_sizing (col, GTK_TREE_VIEW_COLUMN_FIXED);
gtk_tree_view_column_pack_start (col, priv->family_face_cell, TRUE);
gtk_tree_view_column_set_cell_data_func (col,
priv->family_face_cell,
gtk_font_chooser_widget_cell_data_func,
fontchooser,
NULL);
gtk_tree_view_append_column (treeview, col);
gtk_font_chooser_widget_load_fonts (fontchooser);
gtk_font_chooser_widget_set_cell_size (fontchooser);
}
static void
gtk_font_chooser_widget_finalize (GObject *object)
{