/* Gtk+ User Interface Builder * Copyright (C) 1998 Damon Chaplin * * 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. * * 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. * * 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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ #include #include #include #include #include #include #include #include "../gb.h" #include "../tree.h" /* Include the 21x21 icon pixmap for this widget, to be used in the palette */ #include "../graphics/hbox.xpm" /* * This is the GbWidget struct for this widget (see ../gbwidget.h). * It is initialized in the init() function at the end of this file */ static GbWidget gbwidget; /* Size is not saved to the XML. */ static const gchar *Size = "HBox|GtkBox::size"; static const gchar *Homogeneous = "HBox|GtkBox::homogeneous"; static const gchar *Spacing = "HBox|GtkBox::spacing"; /* For children of a box */ static const gchar *GbPadding = "GtkBoxChild::padding"; static const gchar *GbExpand = "GtkBoxChild::expand"; static const gchar *GbFill = "GtkBoxChild::fill"; static const gchar *GbPack = "GtkBoxChild::pack_type"; /* This is only used internally - it isn't save in the XML. */ static const gchar *GbPosition = "GtkBoxChild::position"; static void show_hbox_dialog (GbWidgetNewData * data); static void on_hbox_dialog_ok (GtkWidget * widget, GbWidgetNewData * data); static void on_hbox_dialog_destroy (GtkWidget * widget, GbWidgetNewData * data); static void gb_box_insert_before (GtkWidget * menuitem, GtkWidget * child); static void gb_box_insert_after (GtkWidget * menuitem, GtkWidget * child); /****** * NOTE: To use these functions you need to uncomment them AND add a pointer * to the function in the GbWidget struct at the end of this file. ******/ /* * Creates a new GtkWidget of class GtkHBox, performing any specialized * initialization needed for the widget to work correctly in this environment. * If a dialog box is used to initialize the widget, return NULL from this * function, and call data->callback with your new widget when it is done. * If the widget needs a special destroy handler, add a signal here. */ GtkWidget * gb_hbox_new (GbWidgetNewData * data) { GtkWidget *new_widget; if (data->action == GB_LOADING) { new_widget = gtk_hbox_new (FALSE, 0); return new_widget; } else { show_hbox_dialog (data); return NULL; } } static void show_hbox_dialog (GbWidgetNewData * data) { GtkWidget *dialog, *vbox, *hbox, *label, *spinbutton; GtkObject *adjustment; dialog = glade_util_create_dialog (_("New horizontal box"), data->parent, GTK_SIGNAL_FUNC (on_hbox_dialog_ok), data, &vbox); gtk_signal_connect (GTK_OBJECT (dialog), "destroy", GTK_SIGNAL_FUNC (on_hbox_dialog_destroy), data); hbox = gtk_hbox_new (FALSE, 5); gtk_box_pack_start (GTK_BOX (vbox), hbox, TRUE, TRUE, 5); gtk_container_set_border_width (GTK_CONTAINER (hbox), 10); gtk_widget_show (hbox); label = gtk_label_new (_("Number of columns:")); gtk_box_pack_start (GTK_BOX (hbox), label, TRUE, TRUE, 5); gtk_widget_show (label); adjustment = gtk_adjustment_new (3, 1, 100, 1, 10, 10); spinbutton = glade_util_spin_button_new (GTK_OBJECT (dialog), "cols", GTK_ADJUSTMENT (adjustment), 1, 0); gtk_box_pack_start (GTK_BOX (hbox), spinbutton, TRUE, TRUE, 5); gtk_widget_set_usize (spinbutton, 50, -1); gtk_widget_grab_focus (spinbutton); gtk_widget_show (spinbutton); gtk_widget_show (dialog); gtk_grab_add (dialog); } static void on_hbox_dialog_ok (GtkWidget * widget, GbWidgetNewData * data) { GtkWidget *new_widget, *spinbutton, *window, *placeholder; gint cols, i; window = gtk_widget_get_toplevel (widget); /* Only call callback if placeholder/fixed widget is still there */ if (gb_widget_can_finish_new (data)) { spinbutton = gtk_object_get_data (GTK_OBJECT (window), "cols"); g_return_if_fail (spinbutton != NULL); cols = gtk_spin_button_get_value_as_int (GTK_SPIN_BUTTON (spinbutton)); new_widget = gtk_hbox_new (FALSE, 0); for (i = 0; i < cols; i++) { placeholder = editor_new_placeholder (); /*gtk_widget_set_usize(placeholder, 60, 80); */ gtk_box_pack_start (GTK_BOX (new_widget), placeholder, TRUE, TRUE, 0); } gb_widget_initialize (new_widget, data); (*data->callback) (new_widget, data); } gtk_widget_destroy (window); } static void on_hbox_dialog_destroy (GtkWidget * widget, GbWidgetNewData * data) { gb_widget_free_new_data (data); gtk_grab_remove (widget); } /* * Creates the components needed to edit the extra properties of this widget. */ static void gb_hbox_create_properties (GtkWidget * widget, GbWidgetCreateArgData * data) { property_add_int_range (Size, _("Size:"), _("The number of widgets in the box"), 0, 1000, 1, 10, 1); property_add_bool (Homogeneous, _("Homogeneous:"), _("If the children should be the same size")); property_add_int_range (Spacing, _("Spacing:"), _("The space between each child"), 0, 1000, 1, 10, 1); } /* * Gets the properties of the widget. This is used for both displaying the * properties in the property editor, and also for saving the properties. */ static void gb_hbox_get_properties (GtkWidget * widget, GbWidgetGetArgData * data) { if (data->action != GB_SAVING) gb_widget_output_int (data, Size, g_list_length (GTK_BOX (widget)->children)); gb_widget_output_bool (data, Homogeneous, GTK_BOX (widget)->homogeneous); gb_widget_output_int (data, Spacing, GTK_BOX (widget)->spacing); } /* * Sets the properties of the widget. This is used for both applying the * properties changed in the property editor, and also for loading. */ static void gb_hbox_set_properties (GtkWidget * widget, GbWidgetSetArgData * data) { gboolean homogeneous; gint spacing, size; if (data->action != GB_LOADING) { size = gb_widget_input_int (data, Size); if (data->apply) gb_box_set_size (widget, size); } homogeneous = gb_widget_input_bool (data, Homogeneous); if (data->apply) gtk_box_set_homogeneous (GTK_BOX (widget), homogeneous); spacing = gb_widget_input_int (data, Spacing); if (data->apply) gtk_box_set_spacing (GTK_BOX (widget), spacing); } /* * Writes the source code needed to create this widget. * You have to output everything necessary to create the widget here, though * there are some convenience functions to help. */ static void gb_hbox_write_source (GtkWidget * widget, GbWidgetWriteSourceData * data) { if (data->create_widget) { source_add (data, " %s = gtk_hbox_new (%s, %i);\n", data->wname, GTK_BOX (widget)->homogeneous ? "TRUE" : "FALSE", GTK_BOX (widget)->spacing); } gb_widget_write_standard_source (widget, data); } /* * Functions common to GtkHBox & GtkVBox (and possibly GtkHButtonBox * & GtkVButtonBox). */ /* This updates the box size to the given value, adding placeholders or deleting widgets as necessary. */ void gb_box_set_size (GtkWidget * widget, gint size) { GtkWidget *new_child; gint current_size = g_list_length (GTK_BOX (widget)->children); gint i; if (current_size < size) { /* This avoids any problems with redrawing the selection. */ editor_clear_selection (NULL); for (i = 0; i < size - current_size; i++) { if (GTK_IS_BUTTON_BOX (widget)) { new_child = gb_widget_new ("GtkButton", widget); GTK_WIDGET_SET_FLAGS (new_child, GTK_CAN_DEFAULT); gtk_box_pack_start (GTK_BOX (widget), new_child, TRUE, TRUE, 0); tree_add_widget (new_child); } else { new_child = editor_new_placeholder (); gtk_box_pack_start (GTK_BOX (widget), new_child, TRUE, TRUE, 0); } } } else if (current_size > size) { GList *children, *elem; GtkWidget *child; gchar *error = NULL; /* Get a list of children in the order they appear in the box, start at the end and move backwards until we find a widget that can be destroyed. If we can't find any, show a message box. */ children = gtk_container_get_children (GTK_CONTAINER (widget)); elem = g_list_last (children); while (elem) { child = elem->data; error = editor_can_delete_widget (child); if (!error) { gtk_container_remove (GTK_CONTAINER (widget), child); current_size--; if (current_size == size) break; } elem = elem->prev; } g_list_free (children); /* If we show an error dialog it causes weird problems with the spinbutton used to change the size. So we don't do this. */ #if 0 if (current_size > size) { glade_util_show_message_box (error ? error : _("Can't delete any children."), widget); } #endif } } /* * Creates the child packing properties for children of this widget. */ void gb_box_create_child_properties (GtkWidget * widget, GbWidgetCreateChildArgData * data) { property_add_int_range (GbPosition, _("Position:"), _("The widget's position relative to its siblings"), 0, 10000, 1, 10, 1); property_add_int_range (GbPadding, _("Padding:"), _("The widget's padding"), 0, 10000, 1, 10, 1); property_add_bool (GbExpand, _("Expand:"), _("Set True to let the widget expand")); property_add_bool (GbFill, _("Fill:"), _("Set True to let the widget fill its allocated area")); property_add_bool (GbPack, _("Pack Start:"), _("Set True to pack the widget at the start of the box")); } void gb_box_get_child_properties (GtkWidget *widget, GtkWidget *child, GbWidgetGetArgData *data) { gboolean expand, fill; gint position; guint padding; GtkPackType pack_type; if (data->action == GB_SAVING) save_start_tag (data, "packing"); if (data->action == GB_SHOWING) { position = glade_util_get_box_pos (GTK_BOX (widget), child); gb_widget_output_int (data, GbPosition, position); } gtk_box_query_child_packing (GTK_BOX (widget), child, &expand, &fill, &padding, &pack_type); gb_widget_output_int (data, GbPadding, padding); gb_widget_output_bool (data, GbExpand, expand); gb_widget_output_bool (data, GbFill, fill); if (data->action == GB_SAVING) { /* Save pack type as an enum symbol rather than a bool */ if (pack_type == GTK_PACK_END) { gb_widget_output_string (data, GbPack, "GTK_PACK_END"); } } else { gb_widget_output_bool (data, GbPack, pack_type == GTK_PACK_START); } if (data->action == GB_SAVING) save_end_tag (data, "packing"); } /* Applies or loads the child properties of a child of a hbox/vbox. */ void gb_box_set_child_properties (GtkWidget *widget, GtkWidget *child, GbWidgetSetArgData *data) { gint position, padding; guint old_padding; gboolean expand, fill, pack, set_child_packing = FALSE; gboolean old_expand, old_fill; GtkPackType old_pack_type; position = gb_widget_input_int (data, GbPosition); if (data->apply) { gtk_box_reorder_child (GTK_BOX (widget), child, position); } gtk_box_query_child_packing (GTK_BOX (widget), child, &old_expand, &old_fill, &old_padding, &old_pack_type); padding = gb_widget_input_int (data, GbPadding); if (data->apply) set_child_packing = TRUE; else padding = old_padding; expand = gb_widget_input_bool (data, GbExpand); if (data->apply) set_child_packing = TRUE; else expand = old_expand; fill = gb_widget_input_bool (data, GbFill); if (data->apply) set_child_packing = TRUE; else fill = old_fill; if (data->action == GB_APPLYING) { pack = gb_widget_input_bool (data, GbPack); } else { gchar *pack_symbol = gb_widget_input_string (data, GbPack); pack = pack_symbol && !strcmp (pack_symbol, "GTK_PACK_START"); } if (data->apply) set_child_packing = TRUE; else pack = (old_pack_type == GTK_PACK_START) ? TRUE : FALSE; if (set_child_packing) gtk_box_set_child_packing (GTK_BOX (widget), child, expand, fill, padding, pack ? GTK_PACK_START : GTK_PACK_END); } /* * Adds menu items to a context menu which is just about to appear! * Add commands to aid in editing a GtkHBox, with signals pointing to * other functions in this file. */ void gb_box_create_popup_menu (GtkWidget * widget, GbWidgetCreateMenuData * data) { GtkWidget *menuitem; if (data->child == NULL) return; menuitem = gtk_menu_item_new_with_label (_("Insert Before")); gtk_widget_show (menuitem); gtk_container_add (GTK_CONTAINER (data->menu), menuitem); gtk_signal_connect (GTK_OBJECT (menuitem), "activate", GTK_SIGNAL_FUNC (gb_box_insert_before), data->child); menuitem = gtk_menu_item_new_with_label (_("Insert After")); gtk_widget_show (menuitem); gtk_container_add (GTK_CONTAINER (data->menu), menuitem); gtk_signal_connect (GTK_OBJECT (menuitem), "activate", GTK_SIGNAL_FUNC (gb_box_insert_after), data->child); } static void gb_box_insert_before (GtkWidget * menuitem, GtkWidget * child) { GtkWidget *box, *newchild; guint pos; gboolean expand, fill; guint padding; GtkPackType pack_type; box = child->parent; pos = glade_util_get_box_pos (GTK_BOX (box), child); g_return_if_fail (pos != -1); newchild = editor_new_placeholder (); gtk_box_query_child_packing (GTK_BOX (box), child, &expand, &fill, &padding, &pack_type); if (pack_type == GTK_PACK_START) { gtk_box_pack_start (GTK_BOX (box), newchild, TRUE, TRUE, 0); gtk_box_reorder_child (GTK_BOX (box), newchild, pos); } else { gtk_box_pack_end (GTK_BOX (box), newchild, TRUE, TRUE, 0); gtk_box_reorder_child (GTK_BOX (box), newchild, pos + 1); } } static void gb_box_insert_after (GtkWidget * menuitem, GtkWidget * child) { GtkWidget *box, *newchild; guint pos; gboolean expand, fill; guint padding; GtkPackType pack_type; box = child->parent; pos = glade_util_get_box_pos (GTK_BOX (box), child); g_return_if_fail (pos != -1); newchild = editor_new_placeholder (); gtk_box_query_child_packing (GTK_BOX (box), child, &expand, &fill, &padding, &pack_type); if (pack_type == GTK_PACK_START) { gtk_box_pack_start (GTK_BOX (box), newchild, TRUE, TRUE, 0); gtk_box_reorder_child (GTK_BOX (box), newchild, pos + 1); } else { gtk_box_pack_end (GTK_BOX (box), newchild, TRUE, TRUE, 0); gtk_box_reorder_child (GTK_BOX (box), newchild, pos); } } /* Outputs source to add a child widget to a hbox/vbox. */ void gb_box_write_add_child_source (GtkWidget * parent, const gchar *parent_name, GtkWidget *child, GbWidgetWriteSourceData * data) { gboolean expand, fill; guint padding; GtkPackType pack_type; gtk_box_query_child_packing (GTK_BOX (parent), child, &expand, &fill, &padding, &pack_type); if (pack_type == GTK_PACK_START) { source_add (data, " gtk_box_pack_start (GTK_BOX (%s), %s, %s, %s, %i);\n", parent_name, data->wname, expand ? "TRUE" : "FALSE", fill ? "TRUE" : "FALSE", padding); } else { source_add (data, " gtk_box_pack_end (GTK_BOX (%s), %s, %s, %s, %i);\n", parent_name, data->wname, expand ? "TRUE" : "FALSE", fill ? "TRUE" : "FALSE", padding); } } /* * Initializes the GbWidget structure. * I've placed this at the end of the file so we don't have to include * declarations of all the functions. */ GbWidget * gb_hbox_init () { /* Initialise the GTK type */ volatile GtkType type; type = gtk_hbox_get_type (); /* Initialize the GbWidget structure */ gb_widget_init_struct (&gbwidget); /* Fill in the pixmap struct & tooltip */ gbwidget.pixmap_struct = hbox_xpm; gbwidget.tooltip = _("Horizontal Box"); /* Fill in any functions that this GbWidget has */ gbwidget.gb_widget_new = gb_hbox_new; gbwidget.gb_widget_create_properties = gb_hbox_create_properties; gbwidget.gb_widget_get_properties = gb_hbox_get_properties; gbwidget.gb_widget_set_properties = gb_hbox_set_properties; gbwidget.gb_widget_write_source = gb_hbox_write_source; gbwidget.gb_widget_create_child_properties = gb_box_create_child_properties; gbwidget.gb_widget_get_child_properties = gb_box_get_child_properties; gbwidget.gb_widget_set_child_properties = gb_box_set_child_properties; gbwidget.gb_widget_create_popup_menu = gb_box_create_popup_menu; gbwidget.gb_widget_write_add_child_source = gb_box_write_add_child_source; return &gbwidget; }