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Implement side-by-side tiling

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When dragging a window over a screen edge and dropping it there,
maximize it vertically and scale it horizontally to cover the
corresponding half of the current monitor.

Whenever a "hot area" which triggers this behavior is entered, an
indication of window's target size is displayed after a short delay
to avoid distraction when moving a window between monitors.

https://bugzilla.gnome.org/show_bug.cgi?id=606260
This commit is contained in:
Florian Müllner
2010-06-24 20:41:28 +02:00
parent 7d8cc4f940
commit 97e2b4666b
13 changed files with 692 additions and 27 deletions
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66
src/core/constraints.c
View File

@ -98,6 +98,7 @@ typedef enum
PRIORITY_ENTIRELY_VISIBLE_ON_WORKAREA = 1,
PRIORITY_SIZE_HINTS_INCREMENTS = 1,
PRIORITY_MAXIMIZATION = 2,
PRIORITY_TILING = 2,
PRIORITY_FULLSCREEN = 2,
PRIORITY_SIZE_HINTS_LIMITS = 3,
PRIORITY_TITLEBAR_VISIBLE = 4,
@ -148,6 +149,10 @@ static gboolean constrain_maximization (MetaWindow *window,
ConstraintInfo *info,
ConstraintPriority priority,
gboolean check_only);
static gboolean constrain_tiling (MetaWindow *window,
ConstraintInfo *info,
ConstraintPriority priority,
gboolean check_only);
static gboolean constrain_fullscreen (MetaWindow *window,
ConstraintInfo *info,
ConstraintPriority priority,
@ -215,6 +220,7 @@ typedef struct {
static const Constraint all_constraints[] = {
{constrain_modal_dialog, "constrain_modal_dialog"},
{constrain_maximization, "constrain_maximization"},
{constrain_tiling, "constrain_tiling"},
{constrain_fullscreen, "constrain_fullscreen"},
{constrain_size_increments, "constrain_size_increments"},
{constrain_size_limits, "constrain_size_limits"},
@ -788,7 +794,8 @@ constrain_maximization (MetaWindow *window,
return TRUE;
/* Determine whether constraint applies; exit if it doesn't */
if (!window->maximized_horizontally && !window->maximized_vertically)
if ((!window->maximized_horizontally && !window->maximized_vertically) ||
META_WINDOW_TILED (window))
return TRUE;
/* Calculate target_size = maximized size of (window + frame) */
@ -856,6 +863,59 @@ constrain_maximization (MetaWindow *window,
return TRUE;
}
static gboolean
constrain_tiling (MetaWindow *window,
ConstraintInfo *info,
ConstraintPriority priority,
gboolean check_only)
{
MetaRectangle target_size;
MetaRectangle min_size, max_size;
gboolean hminbad, vminbad;
gboolean horiz_equal, vert_equal;
gboolean constraint_already_satisfied;
if (priority > PRIORITY_TILING)
return TRUE;
/* Determine whether constraint applies; exit if it doesn't */
if (!META_WINDOW_TILED (window))
return TRUE;
/* Calculate target_size - as the tile previews need this as well, we
* use an external function for the actual calculation
*/
meta_window_get_current_tile_area (window, &target_size);
unextend_by_frame (&target_size, info->fgeom);
/* Check min size constraints; max size constraints are ignored as for
* maximized windows.
*/
get_size_limits (window, info->fgeom, FALSE, &min_size, &max_size);
hminbad = target_size.width < min_size.width;
vminbad = target_size.height < min_size.height;
if (hminbad || vminbad)
return TRUE;
/* Determine whether constraint is already satisfied; exit if it is */
horiz_equal = target_size.x == info->current.x &&
target_size.width == info->current.width;
vert_equal = target_size.y == info->current.y &&
target_size.height == info->current.height;
constraint_already_satisfied = horiz_equal && vert_equal;
if (check_only || constraint_already_satisfied)
return constraint_already_satisfied;
/*** Enforce constraint ***/
info->current.x = target_size.x;
info->current.width = target_size.width;
info->current.y = target_size.y;
info->current.height = target_size.height;
return TRUE;
}
static gboolean
constrain_fullscreen (MetaWindow *window,
ConstraintInfo *info,
@ -907,7 +967,7 @@ constrain_size_increments (MetaWindow *window,
/* Determine whether constraint applies; exit if it doesn't */
if (META_WINDOW_MAXIMIZED (window) || window->fullscreen ||
info->action_type == ACTION_MOVE)
META_WINDOW_TILED (window) || info->action_type == ACTION_MOVE)
return TRUE;
/* Determine whether constraint is already satisfied; exit if it is */
@ -1038,7 +1098,7 @@ constrain_aspect_ratio (MetaWindow *window,
constraints_are_inconsistent = minr > maxr;
if (constraints_are_inconsistent ||
META_WINDOW_MAXIMIZED (window) || window->fullscreen ||
info->action_type == ACTION_MOVE)
META_WINDOW_TILED (window) || info->action_type == ACTION_MOVE)
return TRUE;
/* Determine whether constraint is already satisfied; exit if it is. We