Skip to content

Instantly share code, notes, and snippets.

@bert

bert/filechooser_dialog.c

Created April 15, 2010 20:35
Show Gist options
  • Save bert/367614 to your computer and use it in GitHub Desktop.
Save bert/367614 to your computer and use it in GitHub Desktop.
Download ZIP
GTK Filechooser dialog
Raw
filechooser_dialog.c
/*!
* \file filechooser_dialog.c
* \author Copyright 2007, 2008, 2009, 2010 by Bert Timmerman <[email protected]>
* \brief Functions for a filechooser dialog (GTK UI).
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.\n
* \n
* This program 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 General Public License for more details.\n
* \n
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
* MA 02110-1301, USA.\n
*/
#ifdef HAVE_CONFIG_H
# include <config.h>
#endif
#include <sys/types.h>
#include <sys/stat.h>
#include <unistd.h>
#include <string.h>
#include <stdio.h>
#include <gdk/gdkkeysyms.h>
#include <gtk/gtk.h>
#include "callbacks.h"
#include "interface.h"
#include "support.h"
/*!
* \brief The file chooser dialog "Cancel" button is clicked.
*
* <ul>
* <li>lookup the dialog widget.
* <li>destroy the file chooser widget.
* </ul>
*
* \todo - maybe restore the preview widget ?
*
* <b>Parameters:</b> \c *button is the caller widget.\n
* \n
* <b>Parameters:</b> \c user_data.\n
* \n
* <b>Returns:</b> none.
*/
void
on_filechooser_dialog_cancel_button_clicked
(GtkButton *button,
gpointer user_data)
{
GtkWidget *filechooser_dialog = lookup_widget (GTK_WIDGET (button),
"filechooser_dialog");
gtk_widget_destroy (filechooser_dialog);
}
/*!
* \brief The file chooser dialog "close" signal is emitted.
*
* <ul>
* <li>lookup the dialog widget.
* <li>destroy the file chooser widget.
* </ul>
*
* <b>Parameters:</b> \c *dialog is the caller widget.\n
* \n
* <b>Parameters:</b> \c user_data.\n
* \n
* <b>Returns:</b> none.
*/
void
on_filechooser_dialog_close (GtkDialog *dialog,
gpointer user_data)
{
GtkWidget *filechooser_dialog = lookup_widget (GTK_WIDGET (dialog),
"filechooser_dialog");
gtk_widget_destroy (filechooser_dialog);
}
/*!
* \brief The file chooser dialog "current folder changed" signal is emitted.
*
* <ul>
* <li>lookup the dialog widget.
* <li>get the current folder.
* <li>test the current folder for null pointer or empty string and if
* true, please log a message and return.
* <li>store the (new) current folder name in \c temp_dir.
* </ul>
*
* <b>Parameters:</b> \c *filechooser is the caller widget.\n
* \n
* <b>Parameters:</b> \c user_data.\n
* \n
* <b>Returns:</b> none.
*/
void
on_filechooser_dialog_current_folder_changed
(
GtkFileChooser *filechooser,
gpointer user_data
)
{
GtkWidget *filechooser_dialog = lookup_widget (GTK_WIDGET (filechooser),
"filechooser_dialog");
gchar *current_folder = g_strdup (gtk_file_chooser_get_current_folder
(GTK_FILE_CHOOSER (filechooser_dialog)));
/* Test if current folder is a null pointer.
* If so, please log a message. */
if (!current_folder)
{
if (verbose)
g_log ("", G_LOG_LEVEL_WARNING,
_("current folder is not initialised (null pointer)."));
}
/* Test if current folder is an empty string pointer.
* If so, please log a message. */
else if (!strcmp (current_folder, ""))
{
if (verbose)
g_log ("", G_LOG_LEVEL_WARNING,
_("current folder contains an empty string."));
}
/* Test if current folder is a directory.
* If so, store in temp_dir. */
else if (g_file_test (current_folder, G_FILE_TEST_IS_DIR))
{
temp_dir = g_strdup (current_folder);
if (verbose)
g_log ("", G_LOG_LEVEL_INFO, _("Changed cwd to: %s"),
current_folder);
}
/* Clean up used variable(s). */
g_free (current_folder);
}
/*!
* \brief The file chooser dialog "Open" button is clicked.
*
* <ul>
* <li>lookup the dialog widget.
* <li>get the selected filename.
* <li>test the selected filename for null pointer or empty string and if true,
* please log a message.
* <li>test if the selected filename is not a directory and if true,
* please log a message.
* <li>store the selected filename in \c fpw_filename.
* <li>duplicate the (new) current directory name from \c temp_dir into
* \c work_dir.
* <li>read new global values from the selected footprintwizard file.
* <li>update the entry widgets to reflect the changes.
* </ul>
*
* <b>Parameters:</b> \c *button is the caller widget.\n
* \n
* <b>Parameters:</b> \c user_data.\n
* \n
* <b>Returns:</b> none.
*/
void
on_filechooser_dialog_open_button_clicked
(
GtkButton *button,
gpointer user_data
)
{
GtkWidget *filechooser_dialog = lookup_widget (GTK_WIDGET (button),
"filechooser_dialog");
gchar *selected_filename = NULL;
selected_filename = g_strdup (gtk_file_chooser_get_filename (GTK_FILE_CHOOSER (filechooser_dialog)));
/* Test if selected filename is a null pointer.
* If so, please log a message and return. */
if (!selected_filename)
{
if (verbose)
g_log ("", G_LOG_LEVEL_WARNING,
_("selected filename is not initialised (NULL pointer)."));
}
/* Test if selected filename is an empty string.
* If so, please log a message and return. */
else if (!strcmp (selected_filename, ""))
{
if (verbose)
g_log ("", G_LOG_LEVEL_WARNING,
_("selected filename contains an empty string."));
}
/* Test if selected filename is a directory.
* If so, please notify the user (in the statusbar), to select a file
* instead. */
else if (g_file_test (selected_filename, G_FILE_TEST_IS_DIR))
{
if (verbose)
g_log ("", G_LOG_LEVEL_WARNING, _("selected filename is a directory."));
}
else
{
/* Store the (now validated) selected filename. */
gchar *fpw_filename = g_strdup (selected_filename);
if (temp_dir)
work_dir = g_strdup (temp_dir);
/* Read new global values from the selected footprintwizard file. */
if (read_footprintwizard_file (fpw_filename) == EXIT_SUCCESS)
{
if (verbose)
g_log ("", G_LOG_LEVEL_INFO, _("Read footprintwizard file %s."), fpw_filename);
/* Update the entry widgets to reflect the changes. */
GtkWidget *toplevel = gtk_widget_get_toplevel (GTK_WIDGET (button));
if (GTK_WIDGET_TOPLEVEL (toplevel))
{
all_entries_need_updated (GTK_WIDGET (toplevel));
}
/* Clean up used variable(s). */
g_free (toplevel);
}
else
{
GtkWidget *toplevel = gtk_widget_get_toplevel (GTK_WIDGET (button));
if (GTK_WIDGET_TOPLEVEL (toplevel))
{
GtkWidget *dialog = gtk_message_dialog_new
(
GTK_WINDOW (toplevel),
GTK_DIALOG_DESTROY_WITH_PARENT,
GTK_MESSAGE_ERROR,
GTK_BUTTONS_CLOSE,
g_strdup_printf (_("ERROR: Unable to read footprint wizard file %s."), fpw_filename)
);
gtk_dialog_run (GTK_DIALOG (dialog));
gtk_widget_destroy (dialog);
g_free (dialog);
return;
}
g_free (toplevel);
}
/* Clean up used variable(s). */
g_free (fpw_filename);
}
/* Clean up used variable(s). */
g_free (selected_filename);
}
/*!
* \brief The file chooser dialog "selection changed" signal is emitted.
*
* \todo - store the selected filename in \c temp_fpw_filename.
* \todo - read the values from the selected footprintwizard file in a
* temporary set of variables \c temp_*.
* \todo - generate a new preview image.
* \todo - update the preview widget.
*
* <b>Parameters:</b> \c *filechooser is the caller widget.\n
* \n
* <b>Parameters:</b> \c user_data.\n
* \n
* <b>Returns:</b> none.
*/
void
on_filechooser_dialog_selection_changed
(GtkFileChooser *filechooser,
gpointer user_data)
{
}
/*!
* \brief The file chooser dialog "update preview" signal is emitted.
*
* \todo - generate a new preview image.
* \todo - update the preview widget.
*
* <b>Parameters:</b> \c *filechooser is the caller widget.\n
* \n
* <b>Parameters:</b> \c user_data.\n
* \n
* <b>Returns:</b> none.
*/
void
on_filechooser_dialog_update_preview (GtkFileChooser *filechooser,
gpointer user_data)
{
}
GtkWidget*
create_filechooser_dialog (void)
{
GtkWidget *filechooser_dialog;
GdkPixbuf *filechooser_dialog_icon_pixbuf;
GtkWidget *filechooser_dialog_vbox;
GtkWidget *filechooser_dialog_action_area;
GtkWidget *filechooser_dialog_cancel_button;
GtkWidget *filechooser_dialog_open_button;
filechooser_dialog = gtk_file_chooser_dialog_new (_("pcb-gfpw: choose a .fpw file"), NULL, GTK_FILE_CHOOSER_ACTION_OPEN, NULL);
gtk_widget_set_name (filechooser_dialog, "filechooser_dialog");
filechooser_dialog_icon_pixbuf = create_pixbuf ("gFootprintWizard.xpm");
if (filechooser_dialog_icon_pixbuf)
{
gtk_window_set_icon (GTK_WINDOW (filechooser_dialog), filechooser_dialog_icon_pixbuf);
gdk_pixbuf_unref (filechooser_dialog_icon_pixbuf);
}
gtk_window_set_type_hint (GTK_WINDOW (filechooser_dialog), GDK_WINDOW_TYPE_HINT_DIALOG);
filechooser_dialog_vbox = GTK_DIALOG (filechooser_dialog)->vbox;
gtk_widget_set_name (filechooser_dialog_vbox, "filechooser_dialog_vbox");
gtk_widget_show (filechooser_dialog_vbox);
filechooser_dialog_action_area = GTK_DIALOG (filechooser_dialog)->action_area;
gtk_widget_set_name (filechooser_dialog_action_area, "filechooser_dialog_action_area");
gtk_widget_show (filechooser_dialog_action_area);
gtk_button_box_set_layout (GTK_BUTTON_BOX (filechooser_dialog_action_area), GTK_BUTTONBOX_END);
filechooser_dialog_cancel_button = gtk_button_new_from_stock ("gtk-cancel");
gtk_widget_set_name (filechooser_dialog_cancel_button, "filechooser_dialog_cancel_button");
gtk_widget_show (filechooser_dialog_cancel_button);
gtk_dialog_add_action_widget (GTK_DIALOG (filechooser_dialog), filechooser_dialog_cancel_button, GTK_RESPONSE_CANCEL);
GTK_WIDGET_SET_FLAGS (filechooser_dialog_cancel_button, GTK_CAN_DEFAULT);
filechooser_dialog_open_button = gtk_button_new_from_stock ("gtk-open");
gtk_widget_set_name (filechooser_dialog_open_button, "filechooser_dialog_open_button");
gtk_widget_show (filechooser_dialog_open_button);
gtk_dialog_add_action_widget (GTK_DIALOG (filechooser_dialog), filechooser_dialog_open_button, GTK_RESPONSE_OK);
GTK_WIDGET_SET_FLAGS (filechooser_dialog_open_button, GTK_CAN_DEFAULT);
g_signal_connect ((gpointer) filechooser_dialog, "selection_changed",
G_CALLBACK (on_filechooser_dialog_selection_changed),
NULL);
g_signal_connect ((gpointer) filechooser_dialog, "close",
G_CALLBACK (on_filechooser_dialog_close),
NULL);
g_signal_connect ((gpointer) filechooser_dialog, "current_folder_changed",
G_CALLBACK (on_filechooser_dialog_current_folder_changed),
NULL);
g_signal_connect ((gpointer) filechooser_dialog, "update_preview",
G_CALLBACK (on_filechooser_dialog_update_preview),
NULL);
g_signal_connect ((gpointer) filechooser_dialog_cancel_button, "clicked",
G_CALLBACK (on_filechooser_dialog_cancel_button_clicked),
NULL);
g_signal_connect ((gpointer) filechooser_dialog_open_button, "clicked",
G_CALLBACK (on_filechooser_dialog_open_button_clicked),
NULL);
/* Store pointers to all widgets, for use by lookup_widget(). */
GLADE_HOOKUP_OBJECT_NO_REF (filechooser_dialog, filechooser_dialog, "filechooser_dialog");
GLADE_HOOKUP_OBJECT_NO_REF (filechooser_dialog, filechooser_dialog_vbox, "filechooser_dialog_vbox");
GLADE_HOOKUP_OBJECT_NO_REF (filechooser_dialog, filechooser_dialog_action_area, "filechooser_dialog_action_area");
GLADE_HOOKUP_OBJECT (filechooser_dialog, filechooser_dialog_cancel_button, "filechooser_dialog_cancel_button");
GLADE_HOOKUP_OBJECT (filechooser_dialog, filechooser_dialog_open_button, "filechooser_dialog_open_button");
gtk_widget_grab_default (filechooser_dialog_open_button);
return filechooser_dialog;
}
/* EOF */
Raw
filechooser_dialog.h
/*!
* \file filechooser_dialog.h
* \author Copyright 2007, 2008, 2009, 2010 by Bert Timmerman <[email protected]>
* \brief Header file for a filechooser dialog (GTK UI).
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.\n
* \n
* This program 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 General Public License for more details.\n
* \n
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
* MA 02110-1301, USA.\n
*/
#ifndef __FILECHOOSER_DIALOG_INCLUDED__
#define __FILECHOOSER_DIALOG_INCLUDED__
void on_filechooser_dialog_cancel_button_clicked (GtkButton *button, gpointer user_data);
void on_filechooser_dialog_close (GtkDialog *dialog, gpointer user_data);
void on_filechooser_dialog_current_folder_changed (GtkFileChooser *filechooser, gpointer user_data);
void on_filechooser_dialog_open_button_clicked (GtkButton *button, gpointer user_data);
void on_filechooser_dialog_selection_changed (GtkFileChooser *filechooser, gpointer user_data);
void on_filechooser_dialog_update_preview (GtkFileChooser *filechooser, gpointer user_data);
GtkWidget* create_filechooser_dialog (void);
#endif /* __FILECHOOSER_DIALOG_INCLUDED__ */
/* EOF */
Sign up for free to join this conversation on GitHub. Already have an account? Sign in to comment