Pileus Git - ~andy/gtk/blob - gtk/gtkvpaned.c

   1 /* GTK - The GIMP Toolkit
   2  * Copyright (C) 1995-1997 Peter Mattis, Spencer Kimball and Josh MacDonald
   3  *
   4  * This library is free software; you can redistribute it and/or
   5  * modify it under the terms of the GNU Lesser General Public
   6  * License as published by the Free Software Foundation; either
   7  * version 2 of the License, or (at your option) any later version.
   8  *
   9  * This library is distributed in the hope that it will be useful,
  10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  12  * Lesser General Public License for more details.
  13  *
  14  * You should have received a copy of the GNU Lesser General Public
  15  * License along with this library; if not, write to the
  16  * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
  17  * Boston, MA 02111-1307, USA.
  18  */
  19
  20 /*
  21  * Modified by the GTK+ Team and others 1997-2000.  See the AUTHORS
  22  * file for a list of people on the GTK+ Team.  See the ChangeLog
  23  * files for a list of changes.  These files are distributed with
  24  * GTK+ at ftp://ftp.gtk.org/pub/gtk/.
  25  */
  26
  27 #include <config.h>
  28 #include "gtkvpaned.h"
  29 #include "gtkintl.h"
  30 #include "gtkalias.h"
  31
  32 static void     gtk_vpaned_size_request   (GtkWidget      *widget,
  33                                            GtkRequisition *requisition);
  34 static void     gtk_vpaned_size_allocate  (GtkWidget      *widget,
  35                                            GtkAllocation  *allocation);
  36
  37 G_DEFINE_TYPE (GtkVPaned, gtk_vpaned, GTK_TYPE_PANED)
  38
  39 static void
  40 gtk_vpaned_class_init (GtkVPanedClass *class)
  41 {
  42   GtkWidgetClass *widget_class;
  43
  44   widget_class = (GtkWidgetClass *) class;
  45
  46   widget_class->size_request = gtk_vpaned_size_request;
  47   widget_class->size_allocate = gtk_vpaned_size_allocate;
  48 }
  49
  50 static void
  51 gtk_vpaned_init (GtkVPaned *vpaned)
  52 {
  53   GtkPaned *paned;
  54
  55   g_return_if_fail (GTK_IS_PANED (vpaned));
  56
  57   paned = GTK_PANED (vpaned);
  58
  59   paned->cursor_type = GDK_SB_V_DOUBLE_ARROW;
  60   paned->orientation = GTK_ORIENTATION_HORIZONTAL;
  61 }
  62
  63 GtkWidget *
  64 gtk_vpaned_new (void)
  65 {
  66   GtkVPaned *vpaned;
  67
  68   vpaned = g_object_new (GTK_TYPE_VPANED, NULL);
  69
  70   return GTK_WIDGET (vpaned);
  71 }
  72
  73 static void
  74 gtk_vpaned_size_request (GtkWidget      *widget,
  75                          GtkRequisition *requisition)
  76 {
  77   GtkPaned *paned = GTK_PANED (widget);
  78   GtkRequisition child_requisition;
  79
  80   requisition->width = 0;
  81   requisition->height = 0;
  82
  83   if (paned->child1 && GTK_WIDGET_VISIBLE (paned->child1))
  84     {
  85       gtk_widget_size_request (paned->child1, &child_requisition);
  86
  87       requisition->height = child_requisition.height;
  88       requisition->width = child_requisition.width;
  89     }
  90
  91   if (paned->child2 && GTK_WIDGET_VISIBLE (paned->child2))
  92     {
  93       gtk_widget_size_request (paned->child2, &child_requisition);
  94
  95       requisition->width = MAX (requisition->width, child_requisition.width);
  96       requisition->height += child_requisition.height;
  97     }
  98
  99   requisition->height += GTK_CONTAINER (paned)->border_width * 2;
 100   requisition->width += GTK_CONTAINER (paned)->border_width * 2;
 101
 102   if (paned->child1 && GTK_WIDGET_VISIBLE (paned->child1) &&
 103       paned->child2 && GTK_WIDGET_VISIBLE (paned->child2))
 104     {
 105       gint handle_size;
 106
 107       gtk_widget_style_get (widget, "handle-size", &handle_size, NULL);
 108       requisition->height += handle_size;
 109     }
 110 }
 111
 112 static void
 113 gtk_vpaned_size_allocate (GtkWidget     *widget,
 114                           GtkAllocation *allocation)
 115 {
 116   GtkPaned *paned = GTK_PANED (widget);
 117   gint border_width = GTK_CONTAINER (paned)->border_width;
 118
 119   widget->allocation = *allocation;
 120
 121   if (paned->child1 && GTK_WIDGET_VISIBLE (paned->child1) &&
 122       paned->child2 && GTK_WIDGET_VISIBLE (paned->child2))
 123     {
 124       GtkRequisition child1_requisition;
 125       GtkRequisition child2_requisition;
 126       GtkAllocation child1_allocation;
 127       GtkAllocation child2_allocation;
 128       gint handle_size;
 129
 130       gtk_widget_style_get (widget, "handle-size", &handle_size, NULL);
 131
 132       gtk_widget_get_child_requisition (paned->child1, &child1_requisition);
 133       gtk_widget_get_child_requisition (paned->child2, &child2_requisition);
 134
 135       gtk_paned_compute_position (paned,
 136                                   MAX (1, widget->allocation.height
 137                                        - handle_size
 138                                        - 2 * border_width),
 139                                   child1_requisition.height,
 140                                   child2_requisition.height);
 141
 142       paned->handle_pos.x = widget->allocation.x + border_width;
 143       paned->handle_pos.y = widget->allocation.y + paned->child1_size + border_width;
 144       paned->handle_pos.width = MAX (1, (gint) widget->allocation.width - 2 * border_width);
 145       paned->handle_pos.height = handle_size;
 146
 147       if (GTK_WIDGET_REALIZED (widget))
 148         {
 149           if (GTK_WIDGET_MAPPED (widget))
 150             gdk_window_show (paned->handle);
 151           gdk_window_move_resize (paned->handle,
 152                                   paned->handle_pos.x,
 153                                   paned->handle_pos.y,
 154                                   paned->handle_pos.width,
 155                                   handle_size);
 156         }
 157
 158       child1_allocation.width = child2_allocation.width = MAX (1, (gint) allocation->width - border_width * 2);
 159       child1_allocation.height = MAX (1, paned->child1_size);
 160       child1_allocation.x = child2_allocation.x = widget->allocation.x + border_width;
 161       child1_allocation.y = widget->allocation.y + border_width;
 162
 163       child2_allocation.y = child1_allocation.y + paned->child1_size + paned->handle_pos.height;
 164       child2_allocation.height = MAX (1, widget->allocation.y + widget->allocation.height - child2_allocation.y - border_width);
 165
 166       /* Now allocate the childen, making sure, when resizing not to
 167        * overlap the windows
 168        */
 169       if (GTK_WIDGET_MAPPED (widget) &&
 170           paned->child1->allocation.height < child1_allocation.height)
 171         {
 172           gtk_widget_size_allocate (paned->child2, &child2_allocation);
 173           gtk_widget_size_allocate (paned->child1, &child1_allocation);
 174         }
 175       else
 176         {
 177           gtk_widget_size_allocate (paned->child1, &child1_allocation);
 178           gtk_widget_size_allocate (paned->child2, &child2_allocation);
 179         }
 180     }
 181   else
 182     {
 183       GtkAllocation child_allocation;
 184
 185       if (GTK_WIDGET_REALIZED (widget))
 186         gdk_window_hide (paned->handle);
 187
 188       if (paned->child1)
 189         gtk_widget_set_child_visible (paned->child1, TRUE);
 190       if (paned->child2)
 191         gtk_widget_set_child_visible (paned->child2, TRUE);
 192
 193       child_allocation.x = widget->allocation.x + border_width;
 194       child_allocation.y = widget->allocation.y + border_width;
 195       child_allocation.width = MAX (1, allocation->width - 2 * border_width);
 196       child_allocation.height = MAX (1, allocation->height - 2 * border_width);
 197
 198       if (paned->child1 && GTK_WIDGET_VISIBLE (paned->child1))
 199         gtk_widget_size_allocate (paned->child1, &child_allocation);
 200       else if (paned->child2 && GTK_WIDGET_VISIBLE (paned->child2))
 201         gtk_widget_size_allocate (paned->child2, &child_allocation);
 202     }
 203 }
 204
 205 #define __GTK_VPANED_C__
 206 #include "gtkaliasdef.c"