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e96e7ffc89
2002-09-28 Havoc Pennington <hp@pobox.com> * src/window.c, src/stack.c: Rewrite stack code to work a lot differently. Should be better now, and not lose relative positions of windows when moving among layers. Also should now be possible to get session management to restore the stacking order. Probably breaks some stuff, and makes all the stack.c changes I made yesterday sort of irrelevant.
141 lines
4.7 KiB
C
141 lines
4.7 KiB
C
/* Metacity Window Stack */
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/*
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* Copyright (C) 2001 Havoc Pennington
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License as
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* published by the Free Software Foundation; either version 2 of the
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* License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
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* 02111-1307, USA.
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*/
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#ifndef META_STACK_H
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#define META_STACK_H
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#include "screen.h"
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/* Layers vs. stack positions
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* ==========================
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*
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* There are two factors that determine window position.
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*
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* One is window->stack_position, which is a unique integer
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* indicating how windows are ordered with respect to one
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* another. The ordering here transcends layers; it isn't changed
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* as the window is moved among layers. This allows us to move several
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* windows from one layer to another, while preserving the relative
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* order of the moved windows. Also, it allows us to restore
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* the stacking order from a saved session.
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*
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* However when actually stacking windows on the screen, the
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* layer overrides the stack_position; windows are first sorted
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* by layer, then by stack_position within each layer.
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*
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*/
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/* These MUST be in the order of stacking */
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typedef enum
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{
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META_LAYER_DESKTOP = 0,
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META_LAYER_BOTTOM = 1,
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META_LAYER_NORMAL = 2,
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META_LAYER_TOP = 3,
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META_LAYER_DOCK = 4,
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META_LAYER_FULLSCREEN = 5,
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META_LAYER_SPLASH = 6,
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META_LAYER_FOCUSED_WINDOW = 7,
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META_LAYER_LAST = 8
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} MetaStackLayer;
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struct _MetaStack
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{
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MetaScreen *screen;
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/* All X windows that we manage, in mapping order,
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* for _NET_CLIENT_LIST
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*/
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GArray *windows;
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/* Currently-stacked MetaWindow */
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GList *sorted;
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/* MetaWindow to be added to the sorted list */
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GList *added;
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/* Window IDs to be removed from the stack */
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GList *removed;
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int freeze_count;
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/* The last-known stack */
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GArray *last_root_children_stacked;
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/* number of stack positions */
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int n_positions;
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/* What needs doing */
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unsigned int need_resort : 1;
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unsigned int need_relayer : 1;
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unsigned int need_constrain : 1;
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};
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MetaStack *meta_stack_new (MetaScreen *screen);
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void meta_stack_free (MetaStack *stack);
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void meta_stack_add (MetaStack *stack,
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MetaWindow *window);
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void meta_stack_remove (MetaStack *stack,
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MetaWindow *window);
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/* re-read layer-related hints */
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void meta_stack_update_layer (MetaStack *stack,
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MetaWindow *window);
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/* reconsider transient_for */
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void meta_stack_update_transient (MetaStack *stack,
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MetaWindow *window);
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/* raise/lower within a layer */
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void meta_stack_raise (MetaStack *stack,
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MetaWindow *window);
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void meta_stack_lower (MetaStack *stack,
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MetaWindow *window);
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/* On thaw, process pending and sync to server */
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void meta_stack_freeze (MetaStack *stack);
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void meta_stack_thaw (MetaStack *stack);
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MetaWindow* meta_stack_get_top (MetaStack *stack);
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MetaWindow* meta_stack_get_bottom (MetaStack *stack);
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MetaWindow* meta_stack_get_above (MetaStack *stack,
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MetaWindow *window,
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gboolean only_within_layer);
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MetaWindow* meta_stack_get_below (MetaStack *stack,
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MetaWindow *window,
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gboolean only_within_layer);
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MetaWindow* meta_stack_get_default_focus_window (MetaStack *stack,
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MetaWorkspace *workspace,
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MetaWindow *not_this_one);
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GList* meta_stack_list_windows (MetaStack *stack,
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MetaWorkspace *workspace);
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/* -1 if a < b, etc. */
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int meta_stack_windows_cmp (MetaStack *stack,
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MetaWindow *window_a,
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MetaWindow *window_b);
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void meta_window_set_stack_position (MetaWindow *window,
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int position);
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#endif
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