diff options
Diffstat (limited to 'tools/glade/glade/gbwidgets/gbhbox.c')
| -rw-r--r-- | tools/glade/glade/gbwidgets/gbhbox.c | 587 |
1 files changed, 587 insertions, 0 deletions
diff --git a/tools/glade/glade/gbwidgets/gbhbox.c b/tools/glade/glade/gbwidgets/gbhbox.c new file mode 100644 index 00000000..2205824d --- /dev/null +++ b/tools/glade/glade/gbwidgets/gbhbox.c @@ -0,0 +1,587 @@ + +/* 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 <gtk/gtkbbox.h> +#include <gtk/gtkhbox.h> +#include <gtk/gtklabel.h> +#include <gtk/gtkmain.h> +#include <gtk/gtkmenu.h> +#include <gtk/gtkmenuitem.h> +#include <gtk/gtkspinbutton.h> +#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; +} |