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-rw-r--r--tools/glade/glade/gbwidgets/gblayout.c399
1 files changed, 399 insertions, 0 deletions
diff --git a/tools/glade/glade/gbwidgets/gblayout.c b/tools/glade/glade/gbwidgets/gblayout.c
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+/* Gtk+ User Interface Builder
+ * Copyright (C) 1999 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/gtk.h>
+#include "../gb.h"
+
+/* Include the 21x21 icon pixmap for this widget, to be used in the palette */
+#include "../graphics/layout.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 *AreaWidth = "GtkLayout::width";
+static gchar *AreaHeight = "GtkLayout::height";
+
+/* Child properties. */
+const gchar *GladeLayoutChildX = "GtkLayout::x";
+const gchar *GladeLayoutChildY = "GtkLayout::y";
+
+
+
+/* The default step increment for new layouts. */
+#define GLADE_DEFAULT_STEP_INCREMENT 10
+
+/* We only use the step increment property since the other are set
+ automatically by the GtkLayout, or aren't relevant. */
+static const gchar *HValues[] = {
+ NULL, NULL, NULL, "GtkLayout::hstep", NULL, NULL,
+};
+
+static const gchar *VValues[] = {
+ NULL, NULL, NULL, "GtkLayout::vstep", NULL, NULL,
+};
+
+static void gb_layout_adjustment_changed (GtkAdjustment *adjustment,
+ GtkWidget *widget);
+
+/******
+ * 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 GtkLayout, 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.
+ */
+static GtkWidget*
+gb_layout_new (GbWidgetNewData *data)
+{
+ GtkWidget *new_widget;
+
+ new_widget = gtk_layout_new (NULL, NULL);
+ gtk_layout_set_size (GTK_LAYOUT (new_widget), 400, 400);
+
+ return new_widget;
+}
+
+
+static void
+gb_layout_adjustment_changed (GtkAdjustment *adjustment,
+ GtkWidget *widget)
+{
+ /* We check that this is a widget in the interface being created rather
+ than part of Glade's interface. */
+ if (GB_IS_GB_WIDGET (widget))
+ gtk_widget_queue_clear (widget);
+}
+
+
+/*
+ * Creates the components needed to edit the extra properties of this widget.
+ */
+static void
+gb_layout_create_properties (GtkWidget * widget, GbWidgetCreateArgData * data)
+{
+ property_add_int_range (AreaWidth, _("Area Width:"),
+ _("The width of the layout area"),
+ 1, 1000, 1, 10, 1);
+ property_add_int_range (AreaHeight, _("Area Height:"),
+ _("The height of the layout area"),
+ 1, 1000, 1, 10, 1);
+
+ property_add_adjustment (HValues, GB_ADJUST_H_LABELS);
+ property_add_adjustment (VValues, GB_ADJUST_V_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_layout_get_properties (GtkWidget *widget, GbWidgetGetArgData * data)
+{
+ gb_widget_output_int (data, AreaWidth, GTK_LAYOUT (widget)->width);
+ gb_widget_output_int (data, AreaHeight, GTK_LAYOUT (widget)->height);
+
+ gb_widget_output_adjustment (data, HValues,
+ GTK_LAYOUT (widget)->hadjustment,
+ "hadjustment");
+ gb_widget_output_adjustment (data, VValues,
+ GTK_LAYOUT (widget)->vadjustment,
+ "vadjustment");
+}
+
+
+
+/*
+ * 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_layout_set_properties (GtkWidget * widget, GbWidgetSetArgData * data)
+{
+ gint width, height;
+ gboolean set_size = FALSE;
+
+ width = gb_widget_input_int (data, AreaWidth);
+ if (data->apply)
+ set_size = TRUE;
+ else
+ width = GTK_LAYOUT (widget)->width;
+
+ height = gb_widget_input_int (data, AreaHeight);
+ if (data->apply)
+ set_size = TRUE;
+ else
+ height = GTK_LAYOUT (widget)->height;
+
+ if (set_size)
+ gtk_layout_set_size (GTK_LAYOUT (widget), width, height);
+
+ gb_widget_input_adjustment (data, HValues, GTK_LAYOUT (widget)->hadjustment,
+ "hadjustment");
+ gb_widget_input_adjustment (data, VValues, GTK_LAYOUT (widget)->vadjustment,
+ "vadjustment");
+}
+
+
+
+/*
+ * Adds menu items to a context menu which is just about to appear!
+ * Add commands to aid in editing a GtkLayout, with signals pointing to
+ * other functions in this file.
+ */
+/*
+static void
+gb_layout_create_popup_menu (GtkWidget * widget, GbWidgetCreateMenuData * data)
+{
+
+}
+*/
+
+
+void
+gb_layout_add_child (GtkWidget *widget, GtkWidget *child,
+ GbWidgetSetArgData *data)
+{
+ gtk_layout_put (GTK_LAYOUT (widget), child, 0, 0);
+}
+
+
+/*
+ * 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_layout_write_source (GtkWidget * widget, GbWidgetWriteSourceData * data)
+{
+ if (data->create_widget)
+ {
+ source_add (data, " %s = gtk_layout_new (NULL, NULL);\n", data->wname);
+ }
+ gb_widget_write_standard_source (widget, data);
+
+ source_add (data, " gtk_layout_set_size (GTK_LAYOUT (%s), %i, %i);\n",
+ data->wname,
+ GTK_LAYOUT (widget)->width,
+ GTK_LAYOUT (widget)->height);
+
+ source_add (data,
+ " GTK_ADJUSTMENT (GTK_LAYOUT (%s)->hadjustment)->step_increment = %g;\n",
+ data->wname,
+ GTK_ADJUSTMENT (GTK_LAYOUT (widget)->hadjustment)->step_increment);
+ source_add (data,
+ " GTK_ADJUSTMENT (GTK_LAYOUT (%s)->vadjustment)->step_increment = %g;\n",
+ data->wname,
+ GTK_ADJUSTMENT (GTK_LAYOUT (widget)->vadjustment)->step_increment);
+}
+
+
+/*
+ * Creates the child packing properties for children of this widget.
+ */
+void
+gb_layout_create_child_properties (GtkWidget * widget,
+ GbWidgetCreateChildArgData * data)
+{
+ property_add_int_range (GladeLayoutChildX, _("X:"),
+ _("The X coordinate of the widget in the GtkLayout"),
+ 0, 10000, 1, 10, 1);
+ property_add_int_range (GladeLayoutChildY, _("Y:"),
+ _("The Y coordinate of the widget in the GtkLayout"),
+ 0, 10000, 1, 10, 1);
+}
+
+
+/* Shows or saves the child properties of a child of a layout. */
+void
+gb_layout_get_child_properties (GtkWidget *widget, GtkWidget *child,
+ GbWidgetGetArgData *data)
+{
+ gint x, y;
+
+ if (data->action == GB_SAVING)
+ save_start_tag (data, "packing");
+
+ gtk_container_child_get (GTK_CONTAINER (widget), child,
+ "x", &x,
+ "y", &y,
+ NULL);
+
+ gb_widget_output_int (data, GladeLayoutChildX, x);
+ gb_widget_output_int (data, GladeLayoutChildY, y);
+
+ if (data->action == GB_SAVING)
+ save_end_tag (data, "packing");
+}
+
+
+/* Applies or loads the child properties of a child of a layout. */
+void
+gb_layout_set_child_properties (GtkWidget *widget, GtkWidget *child,
+ GbWidgetSetArgData *data)
+{
+ gint x, y;
+
+ x = gb_widget_input_int (data, GladeLayoutChildX);
+ if (data->apply)
+ gtk_container_child_set (GTK_CONTAINER (widget), child,
+ "x", x,
+ NULL);
+
+ y = gb_widget_input_int (data, GladeLayoutChildY);
+ if (data->apply)
+ gtk_container_child_set (GTK_CONTAINER (widget), child,
+ "y", y,
+ NULL);
+}
+
+
+/* Outputs source to add a child widget to a layout. */
+static void
+gb_layout_write_add_child_source (GtkWidget * parent,
+ const gchar *parent_name,
+ GtkWidget *child,
+ GbWidgetWriteSourceData * data)
+{
+ gint x, y;
+
+ gtk_container_child_get (GTK_CONTAINER (parent), child,
+ "x", &x,
+ "y", &y,
+ NULL);
+ source_add (data,
+ " gtk_layout_put (GTK_LAYOUT (%s), %s, %i, %i);\n",
+ parent_name, data->wname, x, y);
+}
+
+
+static gboolean
+gb_layout_emission_hook (GSignalInvocationHint *ihint,
+ guint n_param_values,
+ const GValue *param_values,
+ gpointer data)
+{
+ GtkObject *object, *hadjustment, *vadjustment;
+ GtkObject *old_hadjustment, *old_vadjustment;
+
+ object = g_value_get_object (param_values);
+ g_return_val_if_fail (GTK_IS_LAYOUT (object), FALSE);
+
+ hadjustment = g_value_get_object (param_values + 1);
+ vadjustment = g_value_get_object (param_values + 2);
+
+ old_hadjustment = gtk_object_get_data (object, "scrollhadjustment");
+ if (hadjustment != old_hadjustment)
+ {
+ gtk_object_set_data (object, "scrollhadjustment", hadjustment);
+
+ if (hadjustment)
+ {
+ gtk_signal_connect (hadjustment, "value_changed",
+ (GtkSignalFunc) gb_layout_adjustment_changed,
+ object);
+
+ GTK_ADJUSTMENT (hadjustment)->step_increment = GLADE_DEFAULT_STEP_INCREMENT;
+ if (property_get_widget () == GTK_WIDGET (object))
+ {
+ property_set_auto_apply (FALSE);
+ property_set_float (HValues[3], GLADE_DEFAULT_STEP_INCREMENT);
+ property_set_auto_apply (TRUE);
+ }
+ }
+ }
+
+ old_vadjustment = gtk_object_get_data (object, "scrollvadjustment");
+ if (vadjustment != old_vadjustment)
+ {
+ gtk_object_set_data (object, "scrollvadjustment", vadjustment);
+
+ if (vadjustment)
+ {
+ gtk_signal_connect (vadjustment, "value_changed",
+ (GtkSignalFunc) gb_layout_adjustment_changed,
+ object);
+
+ GTK_ADJUSTMENT (vadjustment)->step_increment = GLADE_DEFAULT_STEP_INCREMENT;
+ if (property_get_widget () == GTK_WIDGET (object))
+ {
+ property_set_auto_apply (FALSE);
+ property_set_float (VValues[3], GLADE_DEFAULT_STEP_INCREMENT);
+ property_set_auto_apply (TRUE);
+ }
+ }
+ }
+
+ return TRUE;
+}
+
+
+/*
+ * 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_layout_init ()
+{
+ GtkWidgetClass *klass;
+
+ /* Initialise the GTK type */
+ volatile GtkType type;
+ type = gtk_layout_get_type();
+
+ /* Add a signal emission hook so we can connect signal handlers to the
+ scrollbar adjustments to redraw the layout when necessary. This will also
+ work for subclasses of GtkLayout. */
+ klass = gtk_type_class (gtk_layout_get_type ());
+ g_signal_add_emission_hook (klass->set_scroll_adjustments_signal, 0,
+ gb_layout_emission_hook, NULL, NULL);
+
+ /* Initialize the GbWidget structure */
+ gb_widget_init_struct(&gbwidget);
+
+ /* Fill in the pixmap struct & tooltip */
+ gbwidget.pixmap_struct = layout_xpm;
+ gbwidget.tooltip = _("Layout");
+
+ /* Fill in any functions that this GbWidget has */
+ gbwidget.gb_widget_new = gb_layout_new;
+ gbwidget.gb_widget_create_properties = gb_layout_create_properties;
+ gbwidget.gb_widget_get_properties = gb_layout_get_properties;
+ gbwidget.gb_widget_set_properties = gb_layout_set_properties;
+ gbwidget.gb_widget_write_source = gb_layout_write_source;
+ gbwidget.gb_widget_create_child_properties = gb_layout_create_child_properties;
+ gbwidget.gb_widget_get_child_properties = gb_layout_get_child_properties;
+ gbwidget.gb_widget_set_child_properties = gb_layout_set_child_properties;
+ gbwidget.gb_widget_write_add_child_source = gb_layout_write_add_child_source;
+ gbwidget.gb_widget_add_child = gb_layout_add_child;
+/*
+ gbwidget.gb_widget_create_popup_menu = gb_layout_create_popup_menu;
+*/
+
+ return &gbwidget;
+}
+
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