/* 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 "../gb.h" /* Include the 21x21 icon pixmap for this widget, to be used in the palette */ #include "../graphics/vscrollbar.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; static gchar *Policy = "VScrollbar|GtkRange::update_policy"; static gchar *Inverted = "VScrollbar|GtkRange::inverted"; static const gchar *Values[] = { "GtkVScrollbar::value", "GtkVScrollbar::lower", "GtkVScrollbar::upper", "GtkVScrollbar::step", "GtkVScrollbar::page", "GtkVScrollbar::page_size", }; static const gchar *GbPolicyChoices[] = {"Continuous", "Discontinuous", "Delayed", NULL}; static const gint GbPolicyValues[] = { GTK_UPDATE_CONTINUOUS, GTK_UPDATE_DISCONTINUOUS, GTK_UPDATE_DELAYED }; static const gchar *GbPolicySymbols[] = { "GTK_UPDATE_CONTINUOUS", "GTK_UPDATE_DISCONTINUOUS", "GTK_UPDATE_DELAYED" }; /****** * 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 GtkVScrollbar, 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_vscrollbar_new (GbWidgetNewData * data) { return gtk_vscrollbar_new (NULL); } /* * Creates the components needed to edit the extra properties of this widget. */ static void gb_vscrollbar_create_properties (GtkWidget * widget, GbWidgetCreateArgData * data) { property_add_choice (Policy, _("Policy:"), _("The update policy of the scrollbar"), GbPolicyChoices); property_add_bool (Inverted, _("Inverted:"), _("If the range values are inverted")); property_add_adjustment (Values, GB_ADJUST_DEFAULT_LABELS); } /* * 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_vscrollbar_get_properties (GtkWidget * widget, GbWidgetGetArgData * data) { gint i; for (i = 0; i < sizeof (GbPolicyValues) / sizeof (GbPolicyValues[0]); i++) { if (GbPolicyValues[i] == GTK_RANGE (widget)->update_policy) gb_widget_output_choice (data, Policy, i, GbPolicySymbols[i]); } gb_widget_output_bool (data, Inverted, GTK_RANGE (widget)->inverted); gb_widget_output_adjustment (data, Values, GTK_RANGE (widget)->adjustment, "adjustment"); } /* * 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_vscrollbar_set_properties (GtkWidget * widget, GbWidgetSetArgData * data) { gchar *policy; gint i; gboolean inverted; GtkAdjustment *adj; policy = gb_widget_input_choice (data, Policy); if (data->apply) { for (i = 0; i < sizeof (GbPolicyValues) / sizeof (GbPolicyValues[0]); i ++) { if (!strcmp (policy, GbPolicyChoices[i]) || !strcmp (policy, GbPolicySymbols[i])) { gtk_range_set_update_policy (GTK_RANGE (widget), GbPolicyValues [i]); break; } } } inverted = gb_widget_input_bool (data, Inverted); if (data->apply) { gtk_range_set_inverted (GTK_RANGE (widget), inverted); } adj = GTK_RANGE (widget)->adjustment; if (gb_widget_input_adjustment (data, Values, adj, "adjustment")) { gtk_signal_emit_by_name (GTK_OBJECT (adj), "changed"); } } /* * Adds menu items to a context menu which is just about to appear! * Add commands to aid in editing a GtkVScrollbar, with signals pointing to * other functions in this file. */ /* static void gb_vscrollbar_create_popup_menu(GtkWidget *widget, GbWidgetCreateMenuData *data) { } */ /* * 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_vscrollbar_write_source (GtkWidget * widget, GbWidgetWriteSourceData * data) { GtkAdjustment *adj = GTK_RANGE (widget)->adjustment; gint i; if (data->create_widget) { source_add (data, " %s = gtk_vscrollbar_new (GTK_ADJUSTMENT (gtk_adjustment_new (%g, %g, %g, %g, %g, %g)));\n", data->wname, adj->value, adj->lower, adj->upper, adj->step_increment, adj->page_increment, adj->page_size); } gb_widget_write_standard_source (widget, data); if (GTK_RANGE (widget)->update_policy != GTK_UPDATE_CONTINUOUS) { for (i = 0; i < sizeof (GbPolicyValues) / sizeof (GbPolicyValues[0]); i ++) { if (GbPolicyValues[i] == GTK_RANGE (widget)->update_policy) source_add (data, " gtk_range_set_update_policy (GTK_RANGE (%s), %s);\n", data->wname, GbPolicySymbols[i]); } } if (GTK_RANGE (widget)->inverted) { source_add (data, " gtk_range_set_inverted (GTK_RANGE (%s), TRUE);\n", data->wname); } } /* * 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_vscrollbar_init () { /* Initialise the GTK type */ volatile GtkType type; type = gtk_vscrollbar_get_type (); /* Initialize the GbWidget structure */ gb_widget_init_struct (&gbwidget); /* Fill in the pixmap struct & tooltip */ gbwidget.pixmap_struct = vscrollbar_xpm; gbwidget.tooltip = _("Vertical Scrollbar"); /* Fill in any functions that this GbWidget has */ gbwidget.gb_widget_new = gb_vscrollbar_new; gbwidget.gb_widget_create_properties = gb_vscrollbar_create_properties; gbwidget.gb_widget_get_properties = gb_vscrollbar_get_properties; gbwidget.gb_widget_set_properties = gb_vscrollbar_set_properties; gbwidget.gb_widget_write_source = gb_vscrollbar_write_source; /* gbwidget.gb_widget_create_popup_menu = gb_vscrollbar_create_popup_menu; */ return &gbwidget; }