diff options
Diffstat (limited to 'gtk/gtkbbox.c')
| -rw-r--r-- | gtk/gtkbbox.c | 228 |
1 files changed, 228 insertions, 0 deletions
diff --git a/gtk/gtkbbox.c b/gtk/gtkbbox.c new file mode 100644 index 000000000..818493f9a --- /dev/null +++ b/gtk/gtkbbox.c @@ -0,0 +1,228 @@ +/* GTK - The GIMP Toolkit + * Copyright (C) 1995-1997 Peter Mattis, Spencer Kimball and Josh MacDonald + * + * This library is free software; you can redistribute it and/or + * modify it under the terms of the GNU Library General Public + * License as published by the Free Software Foundation; either + * version 2 of the License, or (at your option) any later version. + * + * This library 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 + * Library General Public License for more details. + * + * You should have received a copy of the GNU Library General Public + * License along with this library; if not, write to the Free + * Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. + */ +#include "gtkbbox.h" + + +static void gtk_button_box_class_init (GtkButtonBoxClass *klass); +static void gtk_button_box_init (GtkButtonBox *box); + + +static gint default_child_min_width = 85; +static gint default_child_min_height = 27; +static gint default_child_ipad_x = 7; +static gint default_child_ipad_y = 0; + + +guint +gtk_button_box_get_type () +{ + static guint button_box_type = 0; + + if (!button_box_type) + { + GtkTypeInfo button_box_info = + { + "GtkButtonBox", + sizeof (GtkButtonBox), + sizeof (GtkButtonBoxClass), + (GtkClassInitFunc) gtk_button_box_class_init, + (GtkObjectInitFunc) gtk_button_box_init, + (GtkArgFunc) NULL, + }; + + button_box_type = gtk_type_unique (gtk_box_get_type (), &button_box_info); + } + + return button_box_type; +} + +static void +gtk_button_box_class_init (GtkButtonBoxClass *class) +{ + GtkWidgetClass *widget_class; + + widget_class = (GtkWidgetClass*) class; +} + +static void +gtk_button_box_init (GtkButtonBox *button_box) +{ + button_box->spacing = GTK_BUTTONBOX_DEFAULT; + button_box->child_min_width = GTK_BUTTONBOX_DEFAULT; + button_box->child_min_height = GTK_BUTTONBOX_DEFAULT; + button_box->child_ipad_x = GTK_BUTTONBOX_DEFAULT; + button_box->child_ipad_y = GTK_BUTTONBOX_DEFAULT; + button_box->layout_style = GTK_BUTTONBOX_DEFAULT; +} + + +/* set default values for child size and child internal padding */ +/* default spacing is in defined in subclasses */ + +void gtk_button_box_set_child_size_default (gint width, gint height) +{ + default_child_min_width = width; + default_child_min_height = height; +} + +void gtk_button_box_set_child_ipadding_default (gint ipad_x, gint ipad_y) +{ + default_child_ipad_x = ipad_x; + default_child_ipad_y = ipad_y; +} + +/* get default values for child size and child internal padding */ + +void gtk_button_box_get_child_size_default (gint *width, gint *height) +{ + *width = default_child_min_width; + *height = default_child_min_height; +} + +void gtk_button_box_get_child_ipadding_default (gint *ipad_x, gint *ipad_y) +{ + *ipad_x = default_child_ipad_x; + *ipad_y = default_child_ipad_y; +} + +/* set per widget values for spacing, child size and child internal padding */ + +void gtk_button_box_set_spacing (GtkButtonBox *widget, gint spacing) +{ + widget->spacing = spacing; +} + +void gtk_button_box_set_child_size (GtkButtonBox *widget, gint width, gint height) +{ + widget->child_min_width = width; + widget->child_min_height = height; +} + +void gtk_button_box_set_child_ipadding (GtkButtonBox *widget, + gint ipad_x, gint ipad_y) +{ + widget->child_ipad_x = ipad_x; + widget->child_ipad_y = ipad_y; +} + +void gtk_button_box_set_layout (GtkButtonBox *widget, gint layout_style) +{ + widget->layout_style = layout_style; +} + + +/* get per widget values for spacing, child size and child internal padding */ + +gint gtk_button_box_get_spacing (GtkButtonBox *widget) +{ + return widget->spacing; +} + +void gtk_button_box_get_child_size (GtkButtonBox *widget, + gint *width, gint *height) +{ + *width = widget->child_min_width; + *height = widget->child_min_height; +} + +void gtk_button_box_get_child_ipadding (GtkButtonBox *widget, + gint* ipad_x, gint *ipad_y) +{ + *ipad_x = widget->child_ipad_x; + *ipad_y = widget->child_ipad_y; +} + +gint gtk_button_box_get_layout (GtkButtonBox *widget) +{ + return widget->layout_style; +} + + + +/* Ask children how much space they require and round up + to match minimum size and internal padding. + Returns the size each single child should have. */ +void +gtk_button_box_child_requisition (GtkWidget *widget, + int *nvis_children, + int *width, + int *height) +{ + GtkButtonBox *bbox; + GtkBoxChild *child; + GList *children; + gint nchildren; + gint needed_width; + gint needed_height; + GtkRequisition child_requisition; + gint ipad_w; + gint ipad_h; + gint width_default; + gint height_default; + gint ipad_x_default; + gint ipad_y_default; + + gint child_min_width; + gint child_min_height; + gint ipad_x; + gint ipad_y; + + g_return_if_fail (widget != NULL); + g_return_if_fail (GTK_IS_BUTTON_BOX (widget)); + + bbox = GTK_BUTTON_BOX (widget); + + gtk_button_box_get_child_size_default (&width_default, &height_default); + gtk_button_box_get_child_ipadding_default (&ipad_x_default, &ipad_y_default); + + child_min_width = bbox->child_min_width != GTK_BUTTONBOX_DEFAULT + ? bbox->child_min_width : width_default; + child_min_height = bbox->child_min_height !=GTK_BUTTONBOX_DEFAULT + ? bbox->child_min_height : height_default; + ipad_x = bbox->child_ipad_x != GTK_BUTTONBOX_DEFAULT + ? bbox->child_ipad_x : ipad_x_default; + ipad_y = bbox->child_ipad_y != GTK_BUTTONBOX_DEFAULT + ? bbox->child_ipad_y : ipad_y_default; + + nchildren = 0; + children = GTK_BOX(bbox)->children; + needed_width = child_min_width; + needed_height = child_min_height; + ipad_w = ipad_x * 2; + ipad_h = ipad_y * 2; + + while (children) + { + child = children->data; + children = children->next; + + if (GTK_WIDGET_VISIBLE (child->widget)) + { + nchildren += 1; + gtk_widget_size_request (child->widget, &child_requisition); + if (child_requisition.width + ipad_w > needed_width) + needed_width = child_requisition.width + ipad_w; + if (child_requisition.height + ipad_h > needed_height) + needed_height = child_requisition.height + ipad_h; + } + } + + *nvis_children = nchildren; + *width = needed_width; + *height = needed_height; +} |