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Use utility functions to convert between frame and client rectangles

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There are extensive places in the code where we convert between the client
rectangle and the frame rectangle. Instead of manually doing it use
new helper functions on MetaWindow and the existing meta_window_get_outer_rect().

This fixes a number of bugs where the computation was being done incorrectly,
most of these bugs are with the recently added custom frame extents, but
some relate to invisible borders or even simply to confusion between the
window and frame rectangle.

Switch the placement code to place the frame rectangle rather
than the client window - this simplifies things considerably.

https://bugzilla.gnome.org/show_bug.cgi?id=707194
This commit is contained in:
Owen W. Taylor
2013-11-15 16:11:20 -05:00
parent a1087c3f30
commit f36a627330
6 changed files with 222 additions and 211 deletions
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214
src/core/place.c
View File

@ -47,34 +47,18 @@ northwestcmp (gconstpointer a, gconstpointer b)
{
MetaWindow *aw = (gpointer) a;
MetaWindow *bw = (gpointer) b;
MetaRectangle a_frame;
MetaRectangle b_frame;
int from_origin_a;
int from_origin_b;
int ax, ay, bx, by;
/* we're interested in the frame position for cascading,
* not meta_window_get_position()
*/
if (aw->frame)
{
ax = aw->frame->rect.x;
ay = aw->frame->rect.y;
}
else
{
ax = aw->rect.x;
ay = aw->rect.y;
}
if (bw->frame)
{
bx = bw->frame->rect.x;
by = bw->frame->rect.y;
}
else
{
bx = bw->rect.x;
by = bw->rect.y;
}
meta_window_get_outer_rect (aw, &a_frame);
meta_window_get_outer_rect (bw, &b_frame);
ax = a_frame.x;
ay = a_frame.y;
bx = b_frame.x;
by = b_frame.y;
/* probably there's a fast good-enough-guess we could use here. */
from_origin_a = sqrt (ax * ax + ay * ay);
@ -102,6 +86,7 @@ find_next_cascade (MetaWindow *window,
GList *sorted;
int cascade_x, cascade_y;
int x_threshold, y_threshold;
MetaRectangle frame_rect;
int window_width, window_height;
int cascade_stage;
MetaRectangle work_area;
@ -143,30 +128,25 @@ find_next_cascade (MetaWindow *window,
cascade_y = MAX (0, work_area.y);
/* Find first cascade position that's not used. */
window_width = window->frame ? window->frame->rect.width : window->rect.width;
window_height = window->frame ? window->frame->rect.height : window->rect.height;
meta_window_get_outer_rect (window, &frame_rect);
window_width = frame_rect.width;
window_height = frame_rect.height;
cascade_stage = 0;
tmp = sorted;
while (tmp != NULL)
{
MetaWindow *w;
MetaRectangle w_frame_rect;
int wx, wy;
w = tmp->data;
/* we want frame position, not window position */
if (w->frame)
{
wx = w->frame->rect.x;
wy = w->frame->rect.y;
}
else
{
wx = w->rect.x;
wy = w->rect.y;
}
meta_window_get_outer_rect (w, &w_frame_rect);
wx = w_frame_rect.x;
wy = w_frame_rect.y;
if (ABS (wx - cascade_x) < x_threshold &&
ABS (wy - cascade_y) < y_threshold)
@ -223,17 +203,8 @@ find_next_cascade (MetaWindow *window,
g_list_free (sorted);
/* Convert coords to position of window, not position of frame. */
if (borders == NULL)
{
*new_x = cascade_x;
*new_y = cascade_y;
}
else
{
*new_x = cascade_x + borders->visible.left;
*new_y = cascade_y + borders->visible.top;
}
*new_x = cascade_x;
*new_y = cascade_y;
}
static void
@ -250,14 +221,10 @@ find_most_freespace (MetaWindow *window,
int max_area;
int max_width, max_height, left, right, top, bottom;
int left_space, right_space, top_space, bottom_space;
int frame_size_left, frame_size_top;
MetaRectangle work_area;
MetaRectangle avoid;
MetaRectangle outer;
frame_size_left = borders ? borders->visible.left : 0;
frame_size_top = borders ? borders->visible.top : 0;
meta_window_get_work_area_current_monitor (focus_window, &work_area);
meta_window_get_outer_rect (focus_window, &avoid);
meta_window_get_outer_rect (window, &outer);
@ -304,36 +271,54 @@ find_most_freespace (MetaWindow *window,
switch (side)
{
case META_LEFT:
*new_y = avoid.y + frame_size_top;
*new_y = avoid.y;
if (left_space > outer.width)
*new_x = avoid.x - outer.width + frame_size_left;
*new_x = avoid.x - outer.width;
else
*new_x = work_area.x + frame_size_left;
*new_x = work_area.x;
break;
case META_RIGHT:
*new_y = avoid.y + frame_size_top;
*new_y = avoid.y;
if (right_space > outer.width)
*new_x = avoid.x + avoid.width + frame_size_left;
*new_x = avoid.x + avoid.width;
else
*new_x = work_area.x + work_area.width - outer.width + frame_size_left;
*new_x = work_area.x + work_area.width - outer.width;
break;
case META_TOP:
*new_x = avoid.x + frame_size_left;
*new_x = avoid.x;
if (top_space > outer.height)
*new_y = avoid.y - outer.height + frame_size_top;
*new_y = avoid.y - outer.height;
else
*new_y = work_area.y + frame_size_top;
*new_y = work_area.y;
break;
case META_BOTTOM:
*new_x = avoid.x + frame_size_left;
*new_x = avoid.x;
if (bottom_space > outer.height)
*new_y = avoid.y + avoid.height + frame_size_top;
*new_y = avoid.y + avoid.height;
else
*new_y = work_area.y + work_area.height - outer.height + frame_size_top;
*new_y = work_area.y + work_area.height - outer.height;
break;
}
}
static gboolean
window_overlaps_focus_window (MetaWindow *window)
{
MetaWindow *focus_window;
MetaRectangle window_frame, focus_frame, overlap;
focus_window = window->display->focus_window;
if (focus_window == NULL)
return FALSE;
meta_window_get_outer_rect (window, &window_frame);
meta_window_get_outer_rect (focus_window, &focus_frame);
return meta_rectangle_intersect (&window_frame,
&focus_frame,
&overlap);
}
static void
avoid_being_obscured_as_second_modal_dialog (MetaWindow *window,
MetaFrameBorders *borders,
@ -355,16 +340,15 @@ avoid_being_obscured_as_second_modal_dialog (MetaWindow *window,
*/
MetaWindow *focus_window;
MetaRectangle overlap;
focus_window = window->display->focus_window;
/* denied_focus_and_not_transient is only set when focus_window != NULL */
if (window->denied_focus_and_not_transient &&
window->wm_state_modal && /* FIXME: Maybe do this for all transients? */
meta_window_same_application (window, focus_window) &&
meta_rectangle_intersect (&window->rect,
&focus_window->rect,
&overlap))
window_overlaps_focus_window (window))
{
find_most_freespace (window, borders, focus_window, *x, *y, x, y);
meta_topic (META_DEBUG_PLACEMENT,
@ -427,20 +411,14 @@ leftmost_cmp (gconstpointer a, gconstpointer b)
{
MetaWindow *aw = (gpointer) a;
MetaWindow *bw = (gpointer) b;
MetaRectangle a_frame;
MetaRectangle b_frame;
int ax, bx;
/* we're interested in the frame position for cascading,
* not meta_window_get_position()
*/
if (aw->frame)
ax = aw->frame->rect.x;
else
ax = aw->rect.x;
if (bw->frame)
bx = bw->frame->rect.x;
else
bx = bw->rect.x;
meta_window_get_outer_rect (aw, &a_frame);
meta_window_get_outer_rect (bw, &b_frame);
ax = a_frame.x;
bx = b_frame.x;
if (ax < bx)
return -1;
@ -455,20 +433,14 @@ topmost_cmp (gconstpointer a, gconstpointer b)
{
MetaWindow *aw = (gpointer) a;
MetaWindow *bw = (gpointer) b;
MetaRectangle a_frame;
MetaRectangle b_frame;
int ay, by;
/* we're interested in the frame position for cascading,
* not meta_window_get_position()
*/
if (aw->frame)
ay = aw->frame->rect.y;
else
ay = aw->rect.y;
if (bw->frame)
by = bw->frame->rect.y;
else
by = bw->rect.y;
meta_window_get_outer_rect (aw, &a_frame);
meta_window_get_outer_rect (bw, &b_frame);
ay = a_frame.y;
by = b_frame.y;
if (ay < by)
return -1;
@ -540,15 +512,8 @@ find_first_fit (MetaWindow *window,
right_sorted = g_list_copy (windows);
right_sorted = g_list_sort (right_sorted, topmost_cmp);
right_sorted = g_list_sort (right_sorted, leftmost_cmp);
rect.width = window->rect.width;
rect.height = window->rect.height;
if (borders)
{
rect.width += borders->visible.left + borders->visible.right;
rect.height += borders->visible.top + borders->visible.bottom;
}
meta_window_get_outer_rect (window, &rect);
#ifdef WITH_VERBOSE_MODE
{
@ -570,11 +535,6 @@ find_first_fit (MetaWindow *window,
{
*new_x = rect.x;
*new_y = rect.y;
if (borders)
{
*new_x += borders->visible.left;
*new_y += borders->visible.top;
}
retval = TRUE;
@ -598,11 +558,6 @@ find_first_fit (MetaWindow *window,
{
*new_x = rect.x;
*new_y = rect.y;
if (borders)
{
*new_x += borders->visible.left;
*new_y += borders->visible.top;
}
retval = TRUE;
@ -629,11 +584,6 @@ find_first_fit (MetaWindow *window,
{
*new_x = rect.x;
*new_y = rect.y;
if (borders)
{
*new_x += borders->visible.left;
*new_y += borders->visible.top;
}
retval = TRUE;
@ -775,24 +725,22 @@ meta_window_place (MetaWindow *window,
if (parent)
{
int w;
MetaRectangle frame_rect, parent_frame_rect;
meta_window_get_position (parent, &x, &y);
w = parent->rect.width;
meta_window_get_outer_rect (window, &frame_rect);
meta_window_get_outer_rect (parent, &parent_frame_rect);
y = parent_frame_rect.y;
/* center of parent */
x = x + w / 2;
x = parent_frame_rect.x + parent_frame_rect.width / 2;
/* center of child over center of parent */
x -= window->rect.width / 2;
x -= frame_rect.width / 2;
/* "visually" center window over parent, leaving twice as
* much space below as on top.
*/
y += (parent->rect.height - window->rect.height)/3;
/* put top of child's frame, not top of child's client */
if (borders)
y += borders->visible.top;
y += (parent_frame_rect.height - frame_rect.height)/3;
meta_topic (META_DEBUG_PLACEMENT, "Centered window %s over transient parent\n",
window->desc);
@ -813,6 +761,9 @@ meta_window_place (MetaWindow *window,
{
/* Center on current monitor */
int w, h;
MetaRectangle frame_rect;
meta_window_get_outer_rect (window, &frame_rect);
/* Warning, this function is a round trip! */
xi = meta_screen_get_current_monitor_info (window->screen);
@ -820,8 +771,8 @@ meta_window_place (MetaWindow *window,
w = xi->rect.width;
h = xi->rect.height;
x = (w - window->rect.width) / 2;
y = (h - window->rect.height) / 2;
x = (w - frame_rect.width) / 2;
y = (h - frame_rect.height) / 2;
x += xi->rect.x;
y += xi->rect.y;
@ -909,17 +860,14 @@ meta_window_place (MetaWindow *window,
*/
if (window->denied_focus_and_not_transient)
{
gboolean found_fit;
MetaWindow *focus_window;
MetaRectangle overlap;
gboolean found_fit;
focus_window = window->display->focus_window;
g_assert (focus_window != NULL);
/* No need to do anything if the window doesn't overlap at all */
found_fit = !meta_rectangle_intersect (&window->rect,
&focus_window->rect,
&overlap);
found_fit = !window_overlaps_focus_window (window);
/* Try to do a first fit again, this time only taking into account the
* focus window.