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-rw-r--r--CMakeLists.txt9
-rw-r--r--src/sdgtk.c418
2 files changed, 427 insertions, 0 deletions
diff --git a/CMakeLists.txt b/CMakeLists.txt
index e9b75b0..8771632 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -179,6 +179,15 @@ add_executable (${PROJECT_NAME}
${project_sources} ${project_headers} ${project_common_sources})
target_link_libraries (${PROJECT_NAME} ${project_common_libraries})
+# Experimental GTK+ frontend, we link it with ncurses but we don't care
+pkg_check_modules (gtk gtk+-3.0)
+if (gtk_FOUND)
+ add_executable (sdgtk EXCLUDE_FROM_ALL
+ src/sdgtk.c ${project_common_sources})
+ target_include_directories (sdgtk PUBLIC ${gtk_INCLUDE_DIRS})
+ target_link_libraries (sdgtk ${gtk_LIBRARIES} ${project_common_libraries})
+endif (gtk_FOUND)
+
# Tools
set (tools add-pronunciation query-tool transform)
foreach (tool ${tools})
diff --git a/src/sdgtk.c b/src/sdgtk.c
new file mode 100644
index 0000000..30d2e57
--- /dev/null
+++ b/src/sdgtk.c
@@ -0,0 +1,418 @@
+/*
+ * StarDict GTK+ UI
+ *
+ * Copyright (c) 2020, Přemysl Eric Janouch <p@janouch.name>
+ *
+ * Permission to use, copy, modify, and/or distribute this software for any
+ * purpose with or without fee is hereby granted.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
+ * SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION
+ * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
+ * CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ *
+ */
+
+#include <gtk/gtk.h>
+#include <glib/gi18n.h>
+
+#include <locale.h>
+
+#include "config.h"
+#include "stardict.h"
+#include "utils.h"
+
+typedef struct dictionary Dictionary;
+
+struct dictionary
+{
+ const gchar *filename; ///< Filename
+ StardictDict *dict; ///< Stardict dictionary data
+ gchar *name; ///< Name to show
+ guint position; ///< Current position
+};
+
+static struct
+{
+ GtkWidget *window; ///< Top-level window
+ GtkWidget *notebook; ///< Notebook with tabs
+ GtkWidget *entry; ///< Search entry widget
+ GtkWidget *grid; ///< Entries container
+
+ gint dictionary; ///< Index of the current dictionary
+ Dictionary *dictionaries; ///< All open dictionaries
+ gsize dictionaries_len; ///< Total number of dictionaries
+
+ gboolean watch_selection; ///< Following X11 PRIMARY?
+}
+g;
+
+// - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
+
+static gboolean
+dictionary_load (Dictionary *self, gchar *filename, GError **e)
+{
+ self->filename = filename;
+ if (!(self->dict = stardict_dict_new (self->filename, e)))
+ return FALSE;
+
+ if (!self->name)
+ {
+ self->name = g_strdup (stardict_info_get_book_name
+ (stardict_dict_get_info (self->dict)));
+ }
+ return TRUE;
+}
+
+// - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
+
+static gboolean
+init (gchar **filenames, GError **e)
+{
+ while (filenames[g.dictionaries_len])
+ g.dictionaries_len++;
+
+ g.dictionaries = g_malloc0_n (sizeof *g.dictionaries, g.dictionaries_len);
+ for (gsize i = 0; i < g.dictionaries_len; i++)
+ {
+ Dictionary *dict = &g.dictionaries[i];
+ if (!dictionary_load (dict, filenames[i], e))
+ return FALSE;
+ }
+ return TRUE;
+}
+
+static void
+add_row (StardictIterator *iterator, gint row, gint *height_acc)
+{
+ Dictionary *dict = &g.dictionaries[g.dictionary];
+
+ StardictEntry *entry = stardict_iterator_get_entry (iterator);
+ g_return_if_fail (entry != NULL);
+ StardictEntryField *field = entry->fields->data;
+ g_return_if_fail (g_ascii_islower (field->type));
+
+ GtkEntryBuffer *buf = gtk_entry_get_buffer (GTK_ENTRY (g.entry));
+ const gchar *input_utf8 = gtk_entry_buffer_get_text (buf);
+ g_return_if_fail (input_utf8 != NULL);
+
+ const gchar *word_str = stardict_iterator_get_word (iterator);
+ gsize common_prefix = stardict_longest_common_collation_prefix
+ (dict->dict, word_str, input_utf8);
+ gchar *pre = g_markup_escape_text (word_str, common_prefix),
+ *post = g_markup_escape_text (word_str + common_prefix, -1),
+ *marked_up = g_strdup_printf ("<u>%s</u>%s", pre, post);
+
+ GtkWidget *word = gtk_label_new (marked_up);
+ gtk_label_set_use_markup (GTK_LABEL (word), TRUE);
+ gtk_label_set_ellipsize (GTK_LABEL (word), PANGO_ELLIPSIZE_END);
+ gtk_label_set_selectable (GTK_LABEL (word), TRUE);
+ gtk_label_set_xalign (GTK_LABEL (word), 0);
+ gtk_label_set_yalign (GTK_LABEL (word), 0);
+ // FIXME: they can't be deselected by just clicking outside of them
+ gtk_widget_set_can_focus (word, FALSE);
+
+ g_free (pre);
+ g_free (post);
+ g_free (marked_up);
+
+ GtkWidget *desc = gtk_label_new (field->data);
+ gtk_label_set_ellipsize (GTK_LABEL (desc), PANGO_ELLIPSIZE_END);
+ gtk_label_set_selectable (GTK_LABEL (desc), TRUE);
+ gtk_label_set_xalign (GTK_LABEL (desc), 0);
+ gtk_widget_set_can_focus (desc, FALSE);
+
+ g_object_unref (entry);
+
+ if (iterator->offset % 2 == 0)
+ {
+ GtkStyleContext *ctx;
+ ctx = gtk_widget_get_style_context (word);
+ gtk_style_context_add_class (ctx, "odd");
+ ctx = gtk_widget_get_style_context (desc);
+ gtk_style_context_add_class (ctx, "odd");
+ }
+
+ gtk_grid_attach (GTK_GRID (g.grid), word, 0, row, 1, 1);
+ gtk_grid_attach (GTK_GRID (g.grid), desc, 1, row, 1, 1);
+
+ gtk_widget_show (word);
+ gtk_widget_show (desc);
+
+ gint minimum_word = 0, minimum_desc = 0;
+ gtk_widget_get_preferred_height (word, &minimum_word, NULL);
+ gtk_widget_get_preferred_height (desc, &minimum_desc, NULL);
+ *height_acc += MAX (minimum_word, minimum_desc);
+}
+
+static void
+reload (GtkWidget *grid)
+{
+ Dictionary *dict = &g.dictionaries[g.dictionary];
+
+ GList *children = gtk_container_get_children (GTK_CONTAINER (grid));
+ for (GList *iter = children; iter != NULL; iter = g_list_next (iter))
+ gtk_widget_destroy (GTK_WIDGET (iter->data));
+ g_list_free (children);
+
+ gint window_height = 0;
+ gtk_window_get_size (GTK_WINDOW (g.window), NULL, &window_height);
+ if (window_height <= 0)
+ return;
+
+ StardictIterator *iterator =
+ stardict_iterator_new (dict->dict, dict->position);
+ gint row = 0, height_acc = 0;
+ while (stardict_iterator_is_valid (iterator))
+ {
+ add_row (iterator, row++, &height_acc);
+ if (height_acc >= window_height)
+ break;
+
+ stardict_iterator_next (iterator);
+ }
+ gtk_widget_show_all (grid);
+ g_object_unref (iterator);
+}
+
+static void
+search (Dictionary *dict)
+{
+ GtkEntryBuffer *buf = gtk_entry_get_buffer (GTK_ENTRY (g.entry));
+ const gchar *input_utf8 = gtk_entry_buffer_get_text (buf);
+
+ StardictIterator *iterator =
+ stardict_dict_search (dict->dict, input_utf8, NULL);
+ dict->position = stardict_iterator_get_offset (iterator);
+ g_object_unref (iterator);
+}
+
+static void
+on_changed (G_GNUC_UNUSED GtkWidget *widget, G_GNUC_UNUSED gpointer data)
+{
+ search (&g.dictionaries[g.dictionary]);
+ reload (g.grid);
+}
+
+static void
+on_selection_received (G_GNUC_UNUSED GtkClipboard *clipboard, const gchar *text,
+ G_GNUC_UNUSED gpointer data)
+{
+ if (!text)
+ return;
+
+ gtk_entry_set_text (GTK_ENTRY (g.entry), text);
+ g_signal_emit_by_name (g.entry,
+ "move-cursor", GTK_MOVEMENT_BUFFER_ENDS, 1, FALSE);
+}
+
+static void
+on_selection (GtkClipboard *clipboard, GdkEvent *event,
+ G_GNUC_UNUSED gpointer data)
+{
+ if (g.watch_selection
+ && event->owner_change.owner != NULL)
+ gtk_clipboard_request_text (clipboard, on_selection_received, NULL);
+}
+
+static void
+on_selection_watch_toggle (GtkCheckMenuItem *item, G_GNUC_UNUSED gpointer data)
+{
+ g.watch_selection = gtk_check_menu_item_get_active (item);
+}
+
+static void
+on_switch_page (G_GNUC_UNUSED GtkWidget *widget, G_GNUC_UNUSED GtkWidget *page,
+ guint page_num, G_GNUC_UNUSED gpointer data)
+{
+ g.dictionary = page_num;
+ search (&g.dictionaries[g.dictionary]);
+ reload (g.grid);
+}
+
+static gboolean
+on_key_press (G_GNUC_UNUSED GtkWidget *widget, GdkEvent *event,
+ G_GNUC_UNUSED gpointer data)
+{
+ if (event->key.state == GDK_CONTROL_MASK)
+ {
+ if (event->key.keyval == GDK_KEY_Page_Up)
+ {
+ gtk_notebook_prev_page (GTK_NOTEBOOK (g.notebook));
+ return TRUE;
+ }
+ if (event->key.keyval == GDK_KEY_Page_Down)
+ {
+ gtk_notebook_next_page (GTK_NOTEBOOK (g.notebook));
+ return TRUE;
+ }
+ }
+ if (event->key.state == GDK_MOD1_MASK)
+ {
+ if (event->key.keyval >= GDK_KEY_0
+ && event->key.keyval <= GDK_KEY_9)
+ {
+ gint n = event->key.keyval - GDK_KEY_0;
+ gtk_notebook_set_current_page
+ (GTK_NOTEBOOK (g.notebook), n ? (n - 1) : 10);
+ return TRUE;
+ }
+ }
+ return FALSE;
+}
+
+static void
+on_destroy (G_GNUC_UNUSED GtkWidget *widget, G_GNUC_UNUSED gpointer data)
+{
+ gtk_main_quit ();
+}
+
+static void
+die_with_dialog (const gchar *message)
+{
+ GtkWidget *dialog = gtk_message_dialog_new (NULL, 0,
+ GTK_MESSAGE_ERROR, GTK_BUTTONS_CLOSE, "%s", message);
+ gtk_dialog_run (GTK_DIALOG (dialog));
+ gtk_widget_destroy (dialog);
+ exit (EXIT_FAILURE);
+}
+
+int
+main (int argc, char *argv[])
+{
+ if (!setlocale (LC_ALL, ""))
+ g_printerr ("%s: %s\n", _("Warning"), _("failed to set the locale"));
+
+ bindtextdomain (GETTEXT_PACKAGE, GETTEXT_DIRNAME);
+ bind_textdomain_codeset (GETTEXT_PACKAGE, "UTF-8");
+ textdomain (GETTEXT_PACKAGE);
+
+ gchar **filenames = NULL;
+ GOptionEntry option_entries[] =
+ {
+ {G_OPTION_REMAINING, 0, 0, G_OPTION_ARG_FILENAME_ARRAY, &filenames,
+ NULL, N_("FILE...")},
+ {},
+ };
+
+ GError *error = NULL;
+ gtk_init_with_args (&argc, &argv, N_("- StarDict GTK+ UI"),
+ option_entries, GETTEXT_PACKAGE, &error);
+ if (error)
+ {
+ g_warning ("%s", error->message);
+ g_error_free (error);
+ return 1;
+ }
+
+ if (!filenames)
+ {
+ // TODO: eventually just load all dictionaries from configuration
+ die_with_dialog ("No arguments have been passed.");
+ }
+ if (!init (filenames, &error))
+ die_with_dialog (error->message);
+
+ // Some Adwaita stupidity and our own additions
+ const char *style = "notebook header tab { padding: 2px 8px; margin: 0; }"
+ "grid { border-top: 1px solid rgba(0, 0, 0, 0.2); background: white; }"
+ "grid label { padding: 0 5px; "
+ "/*border-bottom: 1px solid rgba(0, 0, 0, 0.2);*/ }"
+ "grid label.odd { background: rgba(0, 0, 0, 0.05); }";
+
+ GdkScreen *screen = gdk_screen_get_default ();
+ GtkCssProvider *provider = gtk_css_provider_new ();
+ gtk_css_provider_load_from_data (provider, style, strlen (style), NULL);
+ gtk_style_context_add_provider_for_screen (screen,
+ GTK_STYLE_PROVIDER (provider), GTK_STYLE_PROVIDER_PRIORITY_APPLICATION);
+
+ g.grid = gtk_grid_new ();
+ gtk_grid_set_column_homogeneous (GTK_GRID (g.grid), TRUE);
+
+ // FIXME: we'd rather like to trim the contents, not make it scrollable.
+ // This just limits the allocation.
+ // TODO: probably create a whole new custom widget, everything is text
+ // anyway and mostly handled by Pango, including pango_layout_xy_to_index()
+ // - I don't know where to get selection colour but inversion works, too
+ GtkWidget *scrolled_window = gtk_scrolled_window_new (NULL, NULL);
+ gtk_scrolled_window_set_policy (GTK_SCROLLED_WINDOW (scrolled_window),
+ GTK_POLICY_NEVER, GTK_POLICY_EXTERNAL);
+ gtk_widget_set_can_focus (scrolled_window, FALSE);
+ gtk_container_add (GTK_CONTAINER (scrolled_window), g.grid);
+
+ g.notebook = gtk_notebook_new ();
+ g_signal_connect (g.notebook, "switch-page",
+ G_CALLBACK (on_switch_page), NULL);
+ gtk_notebook_set_scrollable (GTK_NOTEBOOK (g.notebook), TRUE);
+
+ g.watch_selection = TRUE;
+ GtkWidget *item =
+ gtk_check_menu_item_new_with_label (_("Follow selection"));
+ gtk_check_menu_item_set_active
+ (GTK_CHECK_MENU_ITEM (item), g.watch_selection);
+ g_signal_connect (item, "toggled",
+ G_CALLBACK (on_selection_watch_toggle), NULL);
+
+ GtkWidget *menu = gtk_menu_new ();
+ gtk_menu_shell_append (GTK_MENU_SHELL (menu), item);
+ gtk_widget_show_all (menu);
+
+ GtkWidget *hamburger = gtk_menu_button_new ();
+ gtk_menu_button_set_direction (GTK_MENU_BUTTON (hamburger), GTK_ARROW_NONE);
+ gtk_menu_button_set_popup (GTK_MENU_BUTTON (hamburger), menu);
+ gtk_button_set_relief (GTK_BUTTON (hamburger), GTK_RELIEF_NONE);
+ gtk_widget_show (hamburger);
+
+ gtk_notebook_set_action_widget
+ (GTK_NOTEBOOK (g.notebook), hamburger, GTK_PACK_END);
+
+ // FIXME: when the clear icon shows, the widget changes in height
+ g.entry = gtk_search_entry_new ();
+ // TODO: attach to the "key-press-event" signal and implement ^W at least,
+ // though ^U is working already! Note that bindings can be done in CSS
+ // as well, if we have any extra specially for the editor
+ g_signal_connect (g.entry, "changed", G_CALLBACK (on_changed), g.grid);
+ gtk_entry_set_has_frame (GTK_ENTRY (g.entry), FALSE);
+
+ // TODO: supposedly attach to "key-press-event" here and react to
+ // PageUp/PageDown and up/down arrow keys... either here or in the Entry
+ g.window = gtk_window_new (GTK_WINDOW_TOPLEVEL);
+ g_signal_connect (g.window, "destroy",
+ G_CALLBACK (on_destroy), NULL);
+ g_signal_connect (g.window, "key-press-event",
+ G_CALLBACK (on_key_press), NULL);
+ GtkWidget *superbox = gtk_box_new (GTK_ORIENTATION_VERTICAL, 1);
+ gtk_container_add (GTK_CONTAINER (g.window), superbox);
+ gtk_container_add (GTK_CONTAINER (superbox), g.notebook);
+ gtk_container_add (GTK_CONTAINER (superbox), g.entry);
+ gtk_box_pack_end (GTK_BOX (superbox), scrolled_window, TRUE, TRUE, 0);
+
+ for (gsize i = 0; i < g.dictionaries_len; i++)
+ {
+ Dictionary *dict = &g.dictionaries[i];
+ GtkWidget *dummy = gtk_box_new (GTK_ORIENTATION_VERTICAL, 0);
+ GtkWidget *label = gtk_label_new (dict->name);
+ gtk_notebook_append_page (GTK_NOTEBOOK (g.notebook), dummy, label);
+ }
+
+ GtkClipboard *clipboard = gtk_clipboard_get (GDK_SELECTION_PRIMARY);
+ g_signal_connect (clipboard, "owner-change",
+ G_CALLBACK (on_selection), NULL);
+
+ // Make sure to fill up the window with entries once we're resized
+ // XXX: this is rather inefficient as we rebuild everything each time
+ g_signal_connect (g.window, "configure-event",
+ G_CALLBACK (on_changed), NULL);
+ g_signal_connect (g.window, "map-event",
+ G_CALLBACK (on_changed), NULL);
+
+ gtk_widget_grab_focus (g.entry);
+ gtk_widget_show_all (g.window);
+ gtk_main ();
+
+ g_strfreev (filenames);
+ return 0;
+}