diff options
Diffstat (limited to 'libowl/owlpaned.c')
| -rw-r--r-- | libowl/owlpaned.c | 349 |
1 files changed, 349 insertions, 0 deletions
diff --git a/libowl/owlpaned.c b/libowl/owlpaned.c new file mode 100644 index 0000000..3a6d8c8 --- /dev/null +++ b/libowl/owlpaned.c @@ -0,0 +1,349 @@ +/* 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 Lesser 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 + * Lesser General Public License for more details. + * + * You should have received a copy of the GNU Lesser General Public + * License along with this library; if not, write to the + * Free Software Foundation, Inc., 59 Temple Place - Suite 330, + * Boston, MA 02111-1307, USA. + */ + +/* + * Modified by the GTK+ Team and others 1997-2000. See the AUTHORS + * file for a list of people on the GTK+ Team. See the ChangeLog + * files for a list of changes. These files are distributed with + * GTK+ at ftp://ftp.gtk.org/pub/gtk/. + */ + +#include "owlpaned.h" + +static void owl_paned_class_init (OwlPanedClass *klass); +static void owl_paned_init (OwlPaned *paned); +static void owl_paned_size_request (GtkWidget *widget, + GtkRequisition *requisition); +static void owl_paned_size_allocate_h (GtkWidget *widget, + GtkAllocation *allocation); +static void owl_paned_size_allocate_v (GtkWidget *widget, + GtkAllocation *allocation); + +G_DEFINE_TYPE(OwlPaned, owl_paned, GTK_TYPE_PANED); + +static void +owl_paned_class_init (OwlPanedClass *class) +{ + GtkWidgetClass *widget_class; + + widget_class = (GtkWidgetClass *) class; + + widget_class->size_request = owl_paned_size_request; + /* Default to horizontal */ + widget_class->size_allocate = owl_paned_size_allocate_h; +} + +static void +owl_paned_init (OwlPaned *owlpaned) +{ + GtkPaned *paned; + + g_return_if_fail (OWL_IS_PANED (owlpaned)); + + paned = GTK_PANED (owlpaned); + + paned->cursor_type = GDK_SB_H_DOUBLE_ARROW; + /* The orientation specified the orientation of the separator. */ + paned->orientation = GTK_ORIENTATION_VERTICAL; +} + +GtkWidget * +owl_paned_new (void) +{ + OwlPaned *paned; + + paned = g_object_new (OWL_TYPE_PANED, NULL); + + return GTK_WIDGET (paned); +} + +static GtkOrientation +get_orientation (GtkAllocation *allocation) +{ + g_assert (allocation); + + if (allocation->width >= allocation->height) + return GTK_ORIENTATION_VERTICAL; + else + return GTK_ORIENTATION_HORIZONTAL; +} + +static void +owl_paned_size_request (GtkWidget *widget, + GtkRequisition *requisition) +{ + GtkPaned *paned = GTK_PANED (widget); + GtkRequisition child_requisition; + + requisition->width = 0; + requisition->height = 0; + + if (paned->child1 && GTK_WIDGET_VISIBLE (paned->child1)) + { + gtk_widget_size_request (paned->child1, &child_requisition); + + requisition->height = child_requisition.height; + requisition->width = child_requisition.width; + } + + if (paned->child2 && GTK_WIDGET_VISIBLE (paned->child2)) + { + gtk_widget_size_request (paned->child2, &child_requisition); + + if (paned->orientation == GTK_ORIENTATION_VERTICAL) { + requisition->height = MAX(requisition->height, child_requisition.height); + requisition->width += child_requisition.width; + } else { + requisition->height += child_requisition.height; + requisition->width = MAX (requisition->width, child_requisition.width); + } + } + + requisition->width += GTK_CONTAINER (paned)->border_width * 2; + requisition->height += GTK_CONTAINER (paned)->border_width * 2; + + if (paned->child1 && GTK_WIDGET_VISIBLE (paned->child1) && + paned->child2 && GTK_WIDGET_VISIBLE (paned->child2)) + { + gint handle_size; + + gtk_widget_style_get (widget, "handle-size", &handle_size, NULL); + if (paned->orientation == GTK_ORIENTATION_VERTICAL) { + requisition->width += handle_size; + } else { + requisition->height += handle_size; + } + } +} + +static void +flip_child (GtkWidget *widget, GtkAllocation *child_pos) +{ + gint x = widget->allocation.x; + gint width = widget->allocation.width; + + child_pos->x = 2 * x + width - child_pos->x - child_pos->width; +} + +static void +owl_paned_size_allocate_h (GtkWidget *widget, + GtkAllocation *allocation) +{ + GtkPaned *paned = GTK_PANED (widget); + gint border_width = GTK_CONTAINER (paned)->border_width; + + if (get_orientation (allocation) != GTK_ORIENTATION_VERTICAL) { + GtkWidgetClass *widget_class = GTK_WIDGET_GET_CLASS (widget); + widget_class->size_allocate = owl_paned_size_allocate_v; + owl_paned_size_allocate_v (widget, allocation); + return; + } + + widget->allocation = *allocation; + + if (paned->child1 && GTK_WIDGET_VISIBLE (paned->child1) && + paned->child2 && GTK_WIDGET_VISIBLE (paned->child2)) + { + GtkAllocation child1_allocation; + GtkAllocation child2_allocation; + GtkRequisition child1_requisition; + GtkRequisition child2_requisition; + gint handle_size; + + gtk_widget_style_get (widget, "handle-size", &handle_size, NULL); + + gtk_widget_get_child_requisition (paned->child1, &child1_requisition); + gtk_widget_get_child_requisition (paned->child2, &child2_requisition); + + gtk_paned_compute_position (paned, + MAX (1, widget->allocation.width + - handle_size + - 2 * border_width), + child1_requisition.width, + child2_requisition.width); + + paned->handle_pos.x = widget->allocation.x + paned->child1_size + border_width; + paned->handle_pos.y = widget->allocation.y + border_width; + paned->handle_pos.width = handle_size; + paned->handle_pos.height = MAX (1, widget->allocation.height - 2 * border_width); + + child1_allocation.height = child2_allocation.height = MAX (1, (gint) allocation->height - border_width * 2); + child1_allocation.width = MAX (1, paned->child1_size); + child1_allocation.x = widget->allocation.x + border_width; + child1_allocation.y = child2_allocation.y = widget->allocation.y + border_width; + + child2_allocation.x = child1_allocation.x + paned->child1_size + paned->handle_pos.width; + child2_allocation.width = MAX (1, widget->allocation.x + widget->allocation.width - child2_allocation.x - border_width); + + if (gtk_widget_get_direction (GTK_WIDGET (widget)) == GTK_TEXT_DIR_RTL) + { + flip_child (widget, &(child2_allocation)); + flip_child (widget, &(child1_allocation)); + flip_child (widget, &(paned->handle_pos)); + } + + if (GTK_WIDGET_REALIZED (widget)) + { + if (GTK_WIDGET_MAPPED (widget)) + gdk_window_show (paned->handle); + gdk_window_move_resize (paned->handle, + paned->handle_pos.x, + paned->handle_pos.y, + handle_size, + paned->handle_pos.height); + } + + /* Now allocate the childen, making sure, when resizing not to + * overlap the windows + */ + if (GTK_WIDGET_MAPPED (widget) && + paned->child1->allocation.width < child1_allocation.width) + { + gtk_widget_size_allocate (paned->child2, &child2_allocation); + gtk_widget_size_allocate (paned->child1, &child1_allocation); + } + else + { + gtk_widget_size_allocate (paned->child1, &child1_allocation); + gtk_widget_size_allocate (paned->child2, &child2_allocation); + } + } + else + { + GtkAllocation child_allocation; + + if (GTK_WIDGET_REALIZED (widget)) + gdk_window_hide (paned->handle); + + if (paned->child1) + gtk_widget_set_child_visible (paned->child1, TRUE); + if (paned->child2) + gtk_widget_set_child_visible (paned->child2, TRUE); + + child_allocation.x = widget->allocation.x + border_width; + child_allocation.y = widget->allocation.y + border_width; + child_allocation.width = MAX (1, allocation->width - 2 * border_width); + child_allocation.height = MAX (1, allocation->height - 2 * border_width); + + if (paned->child1 && GTK_WIDGET_VISIBLE (paned->child1)) + gtk_widget_size_allocate (paned->child1, &child_allocation); + else if (paned->child2 && GTK_WIDGET_VISIBLE (paned->child2)) + gtk_widget_size_allocate (paned->child2, &child_allocation); + } +} + +static void +owl_paned_size_allocate_v (GtkWidget *widget, + GtkAllocation *allocation) +{ + GtkPaned *paned = GTK_PANED (widget); + gint border_width = GTK_CONTAINER (paned)->border_width; + + if (get_orientation (allocation) != GTK_ORIENTATION_HORIZONTAL) { + GtkWidgetClass *widget_class = GTK_WIDGET_GET_CLASS (widget); + widget_class->size_allocate = owl_paned_size_allocate_h; + owl_paned_size_allocate_h (widget, allocation); + return; + } + + widget->allocation = *allocation; + + if (paned->child1 && GTK_WIDGET_VISIBLE (paned->child1) && + paned->child2 && GTK_WIDGET_VISIBLE (paned->child2)) + { + GtkRequisition child1_requisition; + GtkRequisition child2_requisition; + GtkAllocation child1_allocation; + GtkAllocation child2_allocation; + gint handle_size; + + gtk_widget_style_get (widget, "handle-size", &handle_size, NULL); + + gtk_widget_get_child_requisition (paned->child1, &child1_requisition); + gtk_widget_get_child_requisition (paned->child2, &child2_requisition); + + gtk_paned_compute_position (paned, + MAX (1, widget->allocation.height + - handle_size + - 2 * border_width), + child1_requisition.height, + child2_requisition.height); + + paned->handle_pos.x = widget->allocation.x + border_width; + paned->handle_pos.y = widget->allocation.y + paned->child1_size + border_width; + paned->handle_pos.width = MAX (1, (gint) widget->allocation.width - 2 * border_width); + paned->handle_pos.height = handle_size; + + if (GTK_WIDGET_REALIZED (widget)) + { + if (GTK_WIDGET_MAPPED (widget)) + gdk_window_show (paned->handle); + gdk_window_move_resize (paned->handle, + paned->handle_pos.x, + paned->handle_pos.y, + paned->handle_pos.width, + handle_size); + } + + child1_allocation.width = child2_allocation.width = MAX (1, (gint) allocation->width - border_width * 2); + child1_allocation.height = MAX (1, paned->child1_size); + child1_allocation.x = child2_allocation.x = widget->allocation.x + border_width; + child1_allocation.y = widget->allocation.y + border_width; + + child2_allocation.y = child1_allocation.y + paned->child1_size + paned->handle_pos.height; + child2_allocation.height = MAX (1, widget->allocation.y + widget->allocation.height - child2_allocation.y - border_width); + + /* Now allocate the childen, making sure, when resizing not to + * overlap the windows + */ + if (GTK_WIDGET_MAPPED (widget) && + paned->child1->allocation.height < child1_allocation.height) + { + gtk_widget_size_allocate (paned->child2, &child2_allocation); + gtk_widget_size_allocate (paned->child1, &child1_allocation); + } + else + { + gtk_widget_size_allocate (paned->child1, &child1_allocation); + gtk_widget_size_allocate (paned->child2, &child2_allocation); + } + } + else + { + GtkAllocation child_allocation; + + if (GTK_WIDGET_REALIZED (widget)) + gdk_window_hide (paned->handle); + + if (paned->child1) + gtk_widget_set_child_visible (paned->child1, TRUE); + if (paned->child2) + gtk_widget_set_child_visible (paned->child2, TRUE); + + child_allocation.x = widget->allocation.x + border_width; + child_allocation.y = widget->allocation.y + border_width; + child_allocation.width = MAX (1, allocation->width - 2 * border_width); + child_allocation.height = MAX (1, allocation->height - 2 * border_width); + + if (paned->child1 && GTK_WIDGET_VISIBLE (paned->child1)) + gtk_widget_size_allocate (paned->child1, &child_allocation); + else if (paned->child2 && GTK_WIDGET_VISIBLE (paned->child2)) + gtk_widget_size_allocate (paned->child2, &child_allocation); + } +} |