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bert/filechooser_dialog.c

Created April 15, 2010 20:35
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  1. bert renamed this gist Apr 15, 2010. 1 changed file with 0 additions and 0 deletions.
    0 filechooser_dialg.h → filechooser_dialog.h
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  2. bert revised this gist Apr 15, 2010. 1 changed file with 39 additions and 0 deletions.
    39 changes: 39 additions & 0 deletions filechooser_dialg.h
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    /*!
    * \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 */
  3. bert created this gist Apr 15, 2010.
    373 changes: 373 additions & 0 deletions filechooser_dialog.c
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    /*!
    * \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 */