mirror of
https://gitlab.gnome.org/GNOME/gtk.git
synced 2024-11-16 05:30:28 +00:00
293 lines
8.6 KiB
C
293 lines
8.6 KiB
C
#include <gtk/gtk.h>
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#include "exampleapp.h"
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#include "exampleappwin.h"
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struct _ExampleAppWindow
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{
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GtkApplicationWindow parent;
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GSettings *settings;
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GtkWidget *stack;
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GtkWidget *search;
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GtkWidget *searchbar;
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GtkWidget *searchentry;
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GtkWidget *gears;
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GtkWidget *sidebar;
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GtkWidget *words;
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GtkWidget *lines;
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GtkWidget *lines_label;
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};
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G_DEFINE_TYPE (ExampleAppWindow, example_app_window, GTK_TYPE_APPLICATION_WINDOW)
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static void
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search_text_changed (GtkEntry *entry,
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ExampleAppWindow *win)
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{
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const gchar *text;
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GtkWidget *tab;
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GtkWidget *view;
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GtkTextBuffer *buffer;
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GtkTextIter start, match_start, match_end;
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text = gtk_editable_get_text (GTK_EDITABLE (entry));
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if (text[0] == '\0')
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return;
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tab = gtk_stack_get_visible_child (GTK_STACK (win->stack));
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view = gtk_bin_get_child (GTK_BIN (tab));
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buffer = gtk_text_view_get_buffer (GTK_TEXT_VIEW (view));
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/* Very simple-minded search implementation */
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gtk_text_buffer_get_start_iter (buffer, &start);
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if (gtk_text_iter_forward_search (&start, text, GTK_TEXT_SEARCH_CASE_INSENSITIVE,
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&match_start, &match_end, NULL))
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{
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gtk_text_buffer_select_range (buffer, &match_start, &match_end);
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gtk_text_view_scroll_to_iter (GTK_TEXT_VIEW (view), &match_start,
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0.0, FALSE, 0.0, 0.0);
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}
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}
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static void
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find_word (GtkButton *button,
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ExampleAppWindow *win)
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{
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const gchar *word;
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word = gtk_button_get_label (button);
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gtk_editable_set_text (GTK_EDITABLE (win->searchentry), word);
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}
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static void
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update_words (ExampleAppWindow *win)
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{
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GHashTable *strings;
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GHashTableIter iter;
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GtkWidget *tab, *view, *row;
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GtkTextBuffer *buffer;
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GtkTextIter start, end;
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GList *children, *l;
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gchar *word, *key;
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tab = gtk_stack_get_visible_child (GTK_STACK (win->stack));
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if (tab == NULL)
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return;
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view = gtk_bin_get_child (GTK_BIN (tab));
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buffer = gtk_text_view_get_buffer (GTK_TEXT_VIEW (view));
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strings = g_hash_table_new_full (g_str_hash, g_str_equal, g_free, NULL);
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gtk_text_buffer_get_start_iter (buffer, &start);
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while (!gtk_text_iter_is_end (&start))
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{
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while (!gtk_text_iter_starts_word (&start))
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{
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if (!gtk_text_iter_forward_char (&start))
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goto done;
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}
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end = start;
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if (!gtk_text_iter_forward_word_end (&end))
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goto done;
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word = gtk_text_buffer_get_text (buffer, &start, &end, FALSE);
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g_hash_table_add (strings, g_utf8_strdown (word, -1));
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g_free (word);
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start = end;
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}
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done:
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children = gtk_container_get_children (GTK_CONTAINER (win->words));
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for (l = children; l; l = l->next)
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gtk_container_remove (GTK_CONTAINER (win->words), GTK_WIDGET (l->data));
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g_list_free (children);
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g_hash_table_iter_init (&iter, strings);
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while (g_hash_table_iter_next (&iter, (gpointer *)&key, NULL))
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{
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row = gtk_button_new_with_label (key);
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g_signal_connect (row, "clicked",
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G_CALLBACK (find_word), win);
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gtk_container_add (GTK_CONTAINER (win->words), row);
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}
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g_hash_table_unref (strings);
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}
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static void
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update_lines (ExampleAppWindow *win)
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{
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GtkWidget *tab, *view;
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GtkTextBuffer *buffer;
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int count;
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gchar *lines;
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tab = gtk_stack_get_visible_child (GTK_STACK (win->stack));
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if (tab == NULL)
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return;
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view = gtk_bin_get_child (GTK_BIN (tab));
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buffer = gtk_text_view_get_buffer (GTK_TEXT_VIEW (view));
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count = gtk_text_buffer_get_line_count (buffer);
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lines = g_strdup_printf ("%d", count);
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gtk_label_set_text (GTK_LABEL (win->lines), lines);
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g_free (lines);
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}
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static void
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visible_child_changed (GObject *stack,
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GParamSpec *pspec,
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ExampleAppWindow *win)
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{
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if (gtk_widget_in_destruction (GTK_WIDGET (stack)))
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return;
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gtk_search_bar_set_search_mode (GTK_SEARCH_BAR (win->searchbar), FALSE);
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update_words (win);
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update_lines (win);
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}
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static void
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words_changed (GObject *sidebar,
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GParamSpec *pspec,
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ExampleAppWindow *win)
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{
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update_words (win);
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}
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static void
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example_app_window_init (ExampleAppWindow *win)
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{
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GtkBuilder *builder;
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GMenuModel *menu;
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GAction *action;
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gtk_widget_init_template (GTK_WIDGET (win));
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win->settings = g_settings_new ("org.gtk.exampleapp");
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g_settings_bind (win->settings, "transition",
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win->stack, "transition-type",
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G_SETTINGS_BIND_DEFAULT);
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g_settings_bind (win->settings, "show-words",
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win->sidebar, "reveal-child",
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G_SETTINGS_BIND_DEFAULT);
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g_object_bind_property (win->search, "active",
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win->searchbar, "search-mode-enabled",
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G_BINDING_BIDIRECTIONAL);
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g_signal_connect (win->sidebar, "notify::reveal-child",
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G_CALLBACK (words_changed), win);
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builder = gtk_builder_new_from_resource ("/org/gtk/exampleapp/gears-menu.ui");
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menu = G_MENU_MODEL (gtk_builder_get_object (builder, "menu"));
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gtk_menu_button_set_menu_model (GTK_MENU_BUTTON (win->gears), menu);
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g_object_unref (builder);
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action = g_settings_create_action (win->settings, "show-words");
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g_action_map_add_action (G_ACTION_MAP (win), action);
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g_object_unref (action);
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action = (GAction*) g_property_action_new ("show-lines", win->lines, "visible");
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g_action_map_add_action (G_ACTION_MAP (win), action);
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g_object_unref (action);
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g_object_bind_property (win->lines, "visible",
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win->lines_label, "visible",
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G_BINDING_DEFAULT);
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}
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static void
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example_app_window_dispose (GObject *object)
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{
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ExampleAppWindow *win;
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win = EXAMPLE_APP_WINDOW (object);
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g_clear_object (&win->settings);
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G_OBJECT_CLASS (example_app_window_parent_class)->dispose (object);
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}
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static void
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example_app_window_class_init (ExampleAppWindowClass *class)
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{
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G_OBJECT_CLASS (class)->dispose = example_app_window_dispose;
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gtk_widget_class_set_template_from_resource (GTK_WIDGET_CLASS (class),
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"/org/gtk/exampleapp/window.ui");
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gtk_widget_class_bind_template_child (GTK_WIDGET_CLASS (class), ExampleAppWindow, stack);
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gtk_widget_class_bind_template_child (GTK_WIDGET_CLASS (class), ExampleAppWindow, search);
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gtk_widget_class_bind_template_child (GTK_WIDGET_CLASS (class), ExampleAppWindow, searchbar);
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gtk_widget_class_bind_template_child (GTK_WIDGET_CLASS (class), ExampleAppWindow, searchentry);
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gtk_widget_class_bind_template_child (GTK_WIDGET_CLASS (class), ExampleAppWindow, gears);
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gtk_widget_class_bind_template_child (GTK_WIDGET_CLASS (class), ExampleAppWindow, words);
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gtk_widget_class_bind_template_child (GTK_WIDGET_CLASS (class), ExampleAppWindow, sidebar);
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gtk_widget_class_bind_template_child (GTK_WIDGET_CLASS (class), ExampleAppWindow, lines);
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gtk_widget_class_bind_template_child (GTK_WIDGET_CLASS (class), ExampleAppWindow, lines_label);
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gtk_widget_class_bind_template_callback (GTK_WIDGET_CLASS (class), search_text_changed);
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gtk_widget_class_bind_template_callback (GTK_WIDGET_CLASS (class), visible_child_changed);
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}
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ExampleAppWindow *
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example_app_window_new (ExampleApp *app)
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{
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return g_object_new (EXAMPLE_APP_WINDOW_TYPE, "application", app, NULL);
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}
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void
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example_app_window_open (ExampleAppWindow *win,
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GFile *file)
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{
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gchar *basename;
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GtkWidget *scrolled, *view;
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gchar *contents;
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gsize length;
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GtkTextBuffer *buffer;
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GtkTextTag *tag;
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GtkTextIter start_iter, end_iter;
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basename = g_file_get_basename (file);
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scrolled = gtk_scrolled_window_new (NULL, NULL);
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gtk_widget_set_hexpand (scrolled, TRUE);
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gtk_widget_set_vexpand (scrolled, TRUE);
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view = gtk_text_view_new ();
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gtk_text_view_set_editable (GTK_TEXT_VIEW (view), FALSE);
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gtk_text_view_set_cursor_visible (GTK_TEXT_VIEW (view), FALSE);
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gtk_container_add (GTK_CONTAINER (scrolled), view);
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gtk_stack_add_titled (GTK_STACK (win->stack), scrolled, basename, basename);
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buffer = gtk_text_view_get_buffer (GTK_TEXT_VIEW (view));
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if (g_file_load_contents (file, NULL, &contents, &length, NULL, NULL))
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{
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gtk_text_buffer_set_text (buffer, contents, length);
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g_free (contents);
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}
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tag = gtk_text_buffer_create_tag (buffer, NULL, NULL);
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g_settings_bind (win->settings, "font",
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tag, "font",
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G_SETTINGS_BIND_DEFAULT);
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gtk_text_buffer_get_start_iter (buffer, &start_iter);
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gtk_text_buffer_get_end_iter (buffer, &end_iter);
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gtk_text_buffer_apply_tag (buffer, tag, &start_iter, &end_iter);
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g_free (basename);
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gtk_widget_set_sensitive (win->search, TRUE);
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update_words (win);
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update_lines (win);
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}
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