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-rw-r--r--libgimpwidgets/gimpfileentry.c499
1 files changed, 499 insertions, 0 deletions
diff --git a/libgimpwidgets/gimpfileentry.c b/libgimpwidgets/gimpfileentry.c
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+/* LIBGIMP - The GIMP Library
+ * Copyright (C) 1995-1997 Peter Mattis and Spencer Kimball
+ *
+ * gimpfileentry.c
+ * Copyright (C) 1999-2004 Michael Natterer <mitch@gimp.org>
+ *
+ * This library is free software: you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 3 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Library General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library. If not, see
+ * <https://www.gnu.org/licenses/>.
+ */
+
+#include "config.h"
+
+#include <string.h>
+
+#include <gtk/gtk.h>
+
+#include "libgimpbase/gimpbase.h"
+
+#include "gimpwidgetstypes.h"
+
+#undef GIMP_DISABLE_DEPRECATED
+#include "gimpfileentry.h"
+
+#include "gimphelpui.h"
+#include "gimpicons.h"
+
+#include "libgimp/libgimp-intl.h"
+
+
+/**
+ * SECTION: gimpfileentry
+ * @title: GimpFileEntry
+ * @short_description: Widget for entering a filename.
+ * @see_also: #GimpPathEditor
+ *
+ * This widget is used to enter filenames or directories.
+ *
+ * There is a #GtkEntry for entering the filename manually and a "..."
+ * button which will pop up a #GtkFileChooserDialog.
+ *
+ * You can restrict the #GimpFileEntry to directories. In this
+ * case the filename listbox of the #GtkFileChooser dialog will be
+ * set to directory mode.
+ *
+ * If you specify @check_valid as #TRUE in gimp_file_entry_new() the
+ * entered filename will be checked for validity and a pixmap will be
+ * shown which indicates if the file exists or not.
+ *
+ * Whenever the user changes the filename, the "filename_changed"
+ * signal will be emitted.
+ **/
+
+
+enum
+{
+ FILENAME_CHANGED,
+ LAST_SIGNAL
+};
+
+
+static void gimp_file_entry_dispose (GObject *object);
+
+static void gimp_file_entry_entry_changed (GtkWidget *widget,
+ GtkWidget *button);
+static void gimp_file_entry_entry_activate (GtkWidget *widget,
+ GimpFileEntry *entry);
+static gint gimp_file_entry_entry_focus_out (GtkWidget *widget,
+ GdkEvent *event,
+ GimpFileEntry *entry);
+static void gimp_file_entry_file_manager_clicked (GtkWidget *widget,
+ GimpFileEntry *entry);
+static void gimp_file_entry_browse_clicked (GtkWidget *widget,
+ GimpFileEntry *entry);
+static void gimp_file_entry_check_filename (GimpFileEntry *entry);
+
+
+G_DEFINE_TYPE (GimpFileEntry, gimp_file_entry, GTK_TYPE_BOX)
+
+#define parent_class gimp_file_entry_parent_class
+
+static guint gimp_file_entry_signals[LAST_SIGNAL] = { 0 };
+
+
+static void
+gimp_file_entry_class_init (GimpFileEntryClass *klass)
+{
+ GObjectClass *object_class = G_OBJECT_CLASS (klass);
+
+ /**
+ * GimpFileEntry::filename-changed:
+ *
+ * This signal is emitted whenever the user changes the filename.
+ **/
+ gimp_file_entry_signals[FILENAME_CHANGED] =
+ g_signal_new ("filename-changed",
+ G_TYPE_FROM_CLASS (klass),
+ G_SIGNAL_RUN_FIRST,
+ G_STRUCT_OFFSET (GimpFileEntryClass, filename_changed),
+ NULL, NULL,
+ g_cclosure_marshal_VOID__VOID,
+ G_TYPE_NONE, 0);
+
+ object_class->dispose = gimp_file_entry_dispose;
+
+ klass->filename_changed = NULL;
+}
+
+static void
+gimp_file_entry_init (GimpFileEntry *entry)
+{
+ GtkWidget *image;
+ GtkWidget *button;
+
+ entry->title = NULL;
+ entry->file_dialog = NULL;
+ entry->check_valid = FALSE;
+ entry->file_exists = NULL;
+
+ gtk_orientable_set_orientation (GTK_ORIENTABLE (entry),
+ GTK_ORIENTATION_HORIZONTAL);
+
+ gtk_box_set_spacing (GTK_BOX (entry), 4);
+ gtk_box_set_homogeneous (GTK_BOX (entry), FALSE);
+
+ button = gtk_button_new ();
+ gtk_box_pack_end (GTK_BOX (entry), button, FALSE, FALSE, 0);
+ gtk_widget_show (button);
+
+ gtk_widget_set_sensitive (button, FALSE);
+
+ image = gtk_image_new_from_icon_name (GIMP_ICON_FILE_MANAGER,
+ GTK_ICON_SIZE_BUTTON);
+ gtk_container_add (GTK_CONTAINER (button), image);
+ gtk_widget_show (image);
+
+ g_signal_connect (button, "clicked",
+ G_CALLBACK (gimp_file_entry_file_manager_clicked),
+ entry);
+
+ gimp_help_set_help_data (button,
+ _("Show file location in the file manager"),
+ NULL);
+
+ entry->browse_button = gtk_button_new ();
+ gtk_box_pack_end (GTK_BOX (entry), entry->browse_button, FALSE, FALSE, 0);
+ gtk_widget_show (entry->browse_button);
+
+ image = gtk_image_new_from_icon_name (GIMP_ICON_DOCUMENT_OPEN,
+ GTK_ICON_SIZE_BUTTON);
+ gtk_container_add (GTK_CONTAINER (entry->browse_button), image);
+ gtk_widget_show (image);
+
+ g_signal_connect (entry->browse_button, "clicked",
+ G_CALLBACK (gimp_file_entry_browse_clicked),
+ entry);
+
+ entry->entry = gtk_entry_new ();
+ gtk_box_pack_end (GTK_BOX (entry), entry->entry, TRUE, TRUE, 0);
+ gtk_widget_show (entry->entry);
+
+ g_signal_connect (entry->entry, "changed",
+ G_CALLBACK (gimp_file_entry_entry_changed),
+ button);
+ g_signal_connect (entry->entry, "activate",
+ G_CALLBACK (gimp_file_entry_entry_activate),
+ entry);
+ g_signal_connect (entry->entry, "focus-out-event",
+ G_CALLBACK (gimp_file_entry_entry_focus_out),
+ entry);
+}
+
+static void
+gimp_file_entry_dispose (GObject *object)
+{
+ GimpFileEntry *entry = GIMP_FILE_ENTRY (object);
+
+ g_clear_pointer (&entry->file_dialog, gtk_widget_destroy);
+
+ g_clear_pointer (&entry->title, g_free);
+
+ G_OBJECT_CLASS (parent_class)->dispose (object);
+}
+
+/**
+ * gimp_file_entry_new:
+ * @title: The title of the #GimpFileEntry dialog.
+ * @filename: The initial filename.
+ * @dir_only: %TRUE if the file entry should accept directories only.
+ * @check_valid: %TRUE if the widget should check if the entered file
+ * really exists.
+ *
+ * You should use #GtkFileChooserButton instead.
+ *
+ * Returns: A pointer to the new #GimpFileEntry widget.
+ **/
+GtkWidget *
+gimp_file_entry_new (const gchar *title,
+ const gchar *filename,
+ gboolean dir_only,
+ gboolean check_valid)
+{
+ GimpFileEntry *entry;
+
+ entry = g_object_new (GIMP_TYPE_FILE_ENTRY, NULL);
+
+ entry->title = g_strdup (title);
+ entry->dir_only = dir_only;
+ entry->check_valid = check_valid;
+
+ gimp_help_set_help_data (entry->browse_button,
+ entry->dir_only ?
+ _("Open a file selector to browse your folders") :
+ _("Open a file selector to browse your files"),
+ NULL);
+
+ if (check_valid)
+ {
+ entry->file_exists = gtk_image_new_from_icon_name ("gtk-no",
+ GTK_ICON_SIZE_BUTTON);
+ gtk_box_pack_start (GTK_BOX (entry), entry->file_exists, FALSE, FALSE, 0);
+ gtk_widget_show (entry->file_exists);
+
+ gimp_help_set_help_data (entry->file_exists,
+ entry->dir_only ?
+ _("Indicates whether or not the folder exists") :
+ _("Indicates whether or not the file exists"),
+ NULL);
+ }
+
+ gimp_file_entry_set_filename (entry, filename);
+
+ return GTK_WIDGET (entry);
+}
+
+/**
+ * gimp_file_entry_get_filename:
+ * @entry: The file entry you want to know the filename from.
+ *
+ * Note that you have to g_free() the returned string.
+ *
+ * Returns: The file or directory the user has entered.
+ **/
+gchar *
+gimp_file_entry_get_filename (GimpFileEntry *entry)
+{
+ gchar *utf8;
+ gchar *filename;
+
+ g_return_val_if_fail (GIMP_IS_FILE_ENTRY (entry), NULL);
+
+ utf8 = gtk_editable_get_chars (GTK_EDITABLE (entry->entry), 0, -1);
+
+ filename = g_filename_from_utf8 (utf8, -1, NULL, NULL, NULL);
+
+ g_free (utf8);
+
+ return filename;
+}
+
+/**
+ * gimp_file_entry_set_filename:
+ * @entry: The file entry you want to set the filename for.
+ * @filename: The new filename.
+ *
+ * If you specified @check_valid as %TRUE in gimp_file_entry_new()
+ * the #GimpFileEntry will immediately check the validity of the file
+ * name.
+ **/
+void
+gimp_file_entry_set_filename (GimpFileEntry *entry,
+ const gchar *filename)
+{
+ gchar *utf8;
+
+ g_return_if_fail (GIMP_IS_FILE_ENTRY (entry));
+
+ if (filename)
+ utf8 = g_filename_to_utf8 (filename, -1, NULL, NULL, NULL);
+ else
+ utf8 = g_strdup ("");
+
+ gtk_entry_set_text (GTK_ENTRY (entry->entry), utf8);
+ g_free (utf8);
+
+ /* update everything
+ */
+ gimp_file_entry_entry_activate (entry->entry, entry);
+}
+
+static void
+gimp_file_entry_entry_changed (GtkWidget *widget,
+ GtkWidget *button)
+{
+ const gchar *text = gtk_entry_get_text (GTK_ENTRY (widget));
+
+ if (text && strlen (text))
+ gtk_widget_set_sensitive (button, TRUE);
+ else
+ gtk_widget_set_sensitive (button, FALSE);
+}
+
+static void
+gimp_file_entry_entry_activate (GtkWidget *widget,
+ GimpFileEntry *entry)
+{
+ gchar *utf8;
+ gchar *filename;
+ gint len;
+
+ /* filenames still need more sanity checking
+ * (erase double G_DIR_SEPARATORS, ...)
+ */
+ utf8 = gtk_editable_get_chars (GTK_EDITABLE (widget), 0, -1);
+ utf8 = g_strstrip (utf8);
+
+ while (((len = strlen (utf8)) > 1) &&
+ (utf8[len - 1] == G_DIR_SEPARATOR))
+ utf8[len - 1] = '\0';
+
+ filename = g_filename_from_utf8 (utf8, -1, NULL, NULL, NULL);
+
+ g_signal_handlers_block_by_func (entry->entry,
+ gimp_file_entry_entry_activate,
+ entry);
+ gtk_entry_set_text (GTK_ENTRY (entry->entry), utf8);
+ g_signal_handlers_unblock_by_func (entry->entry,
+ gimp_file_entry_entry_activate,
+ entry);
+
+ if (entry->file_dialog)
+ gtk_file_chooser_set_filename (GTK_FILE_CHOOSER (entry->file_dialog),
+ filename);
+
+ g_free (filename);
+ g_free (utf8);
+
+ gimp_file_entry_check_filename (entry);
+
+ gtk_editable_set_position (GTK_EDITABLE (entry->entry), -1);
+
+ g_signal_emit (entry, gimp_file_entry_signals[FILENAME_CHANGED], 0);
+}
+
+static gboolean
+gimp_file_entry_entry_focus_out (GtkWidget *widget,
+ GdkEvent *event,
+ GimpFileEntry *entry)
+{
+ gimp_file_entry_entry_activate (widget, entry);
+
+ return FALSE;
+}
+
+/* local callback of gimp_file_entry_browse_clicked() */
+static void
+gimp_file_entry_chooser_response (GtkWidget *dialog,
+ gint response_id,
+ GimpFileEntry *entry)
+{
+ if (response_id == GTK_RESPONSE_OK)
+ {
+ gchar *filename;
+
+ filename = gtk_file_chooser_get_filename (GTK_FILE_CHOOSER (dialog));
+ gimp_file_entry_set_filename (entry, filename);
+ g_free (filename);
+ }
+
+ gtk_widget_hide (dialog);
+}
+
+static void
+gimp_file_entry_file_manager_clicked (GtkWidget *widget,
+ GimpFileEntry *entry)
+{
+ gchar *utf8;
+ GFile *file;
+ GError *error = NULL;
+
+ utf8 = gtk_editable_get_chars (GTK_EDITABLE (entry->entry), 0, -1);
+ file = g_file_parse_name (utf8);
+ g_free (utf8);
+
+ if (! gimp_file_show_in_file_manager (file, &error))
+ {
+ g_message (_("Can't show file in file manager: %s"),
+ error->message);
+ g_clear_error (&error);
+ }
+
+ g_object_unref (file);
+}
+
+static void
+gimp_file_entry_browse_clicked (GtkWidget *widget,
+ GimpFileEntry *entry)
+{
+ GtkFileChooser *chooser;
+ gchar *utf8;
+ gchar *filename;
+
+ utf8 = gtk_editable_get_chars (GTK_EDITABLE (entry->entry), 0, -1);
+ filename = g_filename_from_utf8 (utf8, -1, NULL, NULL, NULL);
+ g_free (utf8);
+
+ if (! entry->file_dialog)
+ {
+ const gchar *title = entry->title;
+
+ if (! title)
+ {
+ if (entry->dir_only)
+ title = _("Select Folder");
+ else
+ title = _("Select File");
+ }
+
+ entry->file_dialog =
+ gtk_file_chooser_dialog_new (title, NULL,
+ entry->dir_only ?
+ GTK_FILE_CHOOSER_ACTION_SELECT_FOLDER :
+ GTK_FILE_CHOOSER_ACTION_OPEN,
+
+ _("_Cancel"), GTK_RESPONSE_CANCEL,
+ _("_OK"), GTK_RESPONSE_OK,
+
+ NULL);
+
+ gtk_dialog_set_alternative_button_order (GTK_DIALOG (entry->file_dialog),
+ GTK_RESPONSE_OK,
+ GTK_RESPONSE_CANCEL,
+ -1);
+
+ chooser = GTK_FILE_CHOOSER (entry->file_dialog);
+
+ gtk_window_set_position (GTK_WINDOW (chooser), GTK_WIN_POS_MOUSE);
+ gtk_window_set_role (GTK_WINDOW (chooser),
+ "gimp-file-entry-file-dialog");
+
+ g_signal_connect (chooser, "response",
+ G_CALLBACK (gimp_file_entry_chooser_response),
+ entry);
+ g_signal_connect (chooser, "delete-event",
+ G_CALLBACK (gtk_true),
+ NULL);
+
+ g_signal_connect_swapped (entry, "unmap",
+ G_CALLBACK (gtk_widget_hide),
+ chooser);
+ }
+ else
+ {
+ chooser = GTK_FILE_CHOOSER (entry->file_dialog);
+ }
+
+ gtk_file_chooser_set_filename (chooser, filename);
+
+ g_free (filename);
+
+ gtk_window_set_screen (GTK_WINDOW (chooser), gtk_widget_get_screen (widget));
+ gtk_window_present (GTK_WINDOW (chooser));
+}
+
+static void
+gimp_file_entry_check_filename (GimpFileEntry *entry)
+{
+ gchar *utf8;
+ gchar *filename;
+ gboolean exists;
+
+ if (! entry->check_valid || ! entry->file_exists)
+ return;
+
+ utf8 = gtk_editable_get_chars (GTK_EDITABLE (entry->entry), 0, -1);
+ filename = g_filename_from_utf8 (utf8, -1, NULL, NULL, NULL);
+ g_free (utf8);
+
+ if (entry->dir_only)
+ exists = g_file_test (filename, G_FILE_TEST_IS_DIR);
+ else
+ exists = g_file_test (filename, G_FILE_TEST_IS_REGULAR);
+
+ g_free (filename);
+
+ gtk_image_set_from_icon_name (GTK_IMAGE (entry->file_exists),
+ exists ? "gtk-yes" : "gtk-no",
+ GTK_ICON_SIZE_BUTTON);
+}
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