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Diffstat (limited to 'tools/glade/glade/gbwidgets/gbcurve.c')
-rw-r--r-- | tools/glade/glade/gbwidgets/gbcurve.c | 263 |
1 files changed, 263 insertions, 0 deletions
diff --git a/tools/glade/glade/gbwidgets/gbcurve.c b/tools/glade/glade/gbwidgets/gbcurve.c new file mode 100644 index 00000000..7da60729 --- /dev/null +++ b/tools/glade/glade/gbwidgets/gbcurve.c @@ -0,0 +1,263 @@ + +/* 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/gtkcurve.h> +#include "../gb.h" + +/* Include the 21x21 icon pixmap for this widget, to be used in the palette */ +#include "../graphics/curve.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; + +#if 0 +static gchar *Type = "GtkCurve::curve_type"; +#endif +static gchar *XMin = "GtkCurve::min_x"; +static gchar *XMax = "GtkCurve::max_x"; +static gchar *YMin = "GtkCurve::min_y"; +static gchar *YMax = "GtkCurve::max_y"; + +#if 0 +static const gchar *GbTypeChoices[] = +{"Linear", "Spline", "Free", NULL}; +static const gint GbTypeValues[] = +{ + GTK_CURVE_TYPE_LINEAR, /* linear interpolation */ + GTK_CURVE_TYPE_SPLINE, /* spline interpolation */ + GTK_CURVE_TYPE_FREE /* free form curve */ +}; +static const gchar *GbTypeSymbols[] = +{ + "GTK_CURVE_TYPE_LINEAR", + "GTK_CURVE_TYPE_SPLINE", + "GTK_CURVE_TYPE_FREE" +}; +#endif + +/****** + * 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 GtkCurve, 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_curve_new (GbWidgetNewData * data) +{ + GtkWidget *new_widget = gtk_curve_new (); + return new_widget; +} + + + +/* + * Creates the components needed to edit the extra properties of this widget. + */ +static void +gb_curve_create_properties (GtkWidget * widget, GbWidgetCreateArgData * data) +{ +#if 0 + property_add_choice (Type, _("Type:"), _("The type of the curve"), GbTypeChoices); +#endif + property_add_float (XMin, _("X Min:"), _("The minimum horizontal value")); + property_add_float (XMax, _("X Max:"), _("The maximum horizontal value")); + property_add_float (YMin, _("Y Min:"), _("The minimum vertical value")); + property_add_float (YMax, _("Y Max:"), _("The maximum vertical value")); +} + + + +/* + * 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_curve_get_properties (GtkWidget * widget, GbWidgetGetArgData * data) +{ +#if 0 + gint i; + + for (i = 0; i < sizeof (GbTypeValues) / sizeof (GbTypeValues[0]); i++) + { + if (GbTypeValues[i] == GTK_CURVE (widget)->curve_type) + gb_widget_output_choice (data, Type, i, GbTypeSymbols[i]); + } +#endif + gb_widget_output_float (data, XMin, GTK_CURVE (widget)->min_x); + gb_widget_output_float (data, XMax, GTK_CURVE (widget)->max_x); + gb_widget_output_float (data, YMin, GTK_CURVE (widget)->min_y); + gb_widget_output_float (data, YMax, GTK_CURVE (widget)->max_y); +} + + + +/* + * 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_curve_set_properties (GtkWidget * widget, GbWidgetSetArgData * data) +{ + gfloat min_x, max_x, min_y, max_y; + gboolean set_range = FALSE; + +#if 0 + gint i; + gchar *type; + + type = gb_widget_input_choice (data, Type); + if (data->apply) + { + for (i = 0; i < sizeof (GbTypeValues) / sizeof (GbTypeValues[0]); i++) + { + if (!strcmp (type, GbTypeChoices[i]) + || !strcmp (type, GbTypeSymbols[i])) + { + gtk_curve_set_curve_type (GTK_CURVE (widget), GbTypeValues[i]); + break; + } + } + } +#endif + + min_x = gb_widget_input_float (data, XMin); + if (data->apply) + set_range = TRUE; + else + min_x = GTK_CURVE (widget)->min_x; + + max_x = gb_widget_input_float (data, XMax); + if (data->apply) + set_range = TRUE; + else + max_x = GTK_CURVE (widget)->max_x; + + min_y = gb_widget_input_float (data, YMin); + if (data->apply) + set_range = TRUE; + else + min_y = GTK_CURVE (widget)->min_y; + + max_y = gb_widget_input_float (data, YMax); + if (data->apply) + set_range = TRUE; + else + max_y = GTK_CURVE (widget)->max_y; + + if (set_range) + gtk_curve_set_range (GTK_CURVE (widget), min_x, max_x, min_y, max_y); +} + + + +/* + * Adds menu items to a context menu which is just about to appear! + * Add commands to aid in editing a GtkCurve, with signals pointing to + * other functions in this file. + */ +/* + static void + gb_curve_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_curve_write_source (GtkWidget * widget, GbWidgetWriteSourceData * data) +{ + GtkCurve *curve = GTK_CURVE (widget); +#if 0 + gint i; +#endif + + if (data->create_widget) + { + source_add (data, " %s = gtk_curve_new ();\n", data->wname); + } + + gb_widget_write_standard_source (widget, data); + +#if 0 + if (curve->curve_type != GTK_CURVE_TYPE_SPLINE) + { + for (i = 0; i < sizeof (GbTypeValues) / sizeof (GbTypeValues[0]); i++) + { + if (GbTypeValues[i] == curve->curve_type) + source_add (data, + " gtk_curve_set_curve_type (GTK_CURVE (%s), %s);\n", + data->wname, GbTypeSymbols[i]); + } + } +#endif + + source_add (data, " gtk_curve_set_range (GTK_CURVE (%s), %g, %g, %g, %g);\n", + data->wname, curve->min_x, curve->max_x, + curve->min_y, curve->max_y); +} + + + +/* + * 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_curve_init () +{ + /* Initialise the GTK type */ + volatile GtkType type; + type = gtk_curve_get_type (); + + /* Initialize the GbWidget structure */ + gb_widget_init_struct (&gbwidget); + + /* Fill in the pixmap struct & tooltip */ + gbwidget.pixmap_struct = curve_xpm; + gbwidget.tooltip = _("Curve"); + + /* Fill in any functions that this GbWidget has */ + gbwidget.gb_widget_new = gb_curve_new; + gbwidget.gb_widget_create_properties = gb_curve_create_properties; + gbwidget.gb_widget_get_properties = gb_curve_get_properties; + gbwidget.gb_widget_set_properties = gb_curve_set_properties; + gbwidget.gb_widget_write_source = gb_curve_write_source; +/* + gbwidget.gb_widget_create_popup_menu = gb_curve_create_popup_menu; + */ + + return &gbwidget; +} |