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mutter/src/testboxes.c
Elijah Newren 0201fcfc6c Stick an emacs comment directive at the beginning of all the code files so 
2006-10-01  Elijah Newren  <newren gmail com>

	* src/*.[ch]: Stick an emacs comment directive at the beginning of
	all the code files so that people using emacs will be more likely
	to get coding style correct in their patches.  We still need a
	similar vi directive.  #358866
2006-10-01 22:30:10 +00:00

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/* -*- mode: C; c-file-style: "gnu"; indent-tabs-mode: nil; -*- */
/* Metacity box operation testing program */
/*
* Copyright (C) 2005 Elijah Newren
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License as
* published by the Free Software Foundation; either version 2 of the
* License, or (at your option) any later version.
*
* This program 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
* General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
* 02111-1307, USA.
*/
#include "boxes.h"
#include <glib.h>
#include <stdlib.h>
#include <stdio.h>
#include <X11/Xutil.h> /* Just for the definition of the various gravities */
#include <time.h> /* To initialize random seed */
#define NUM_RANDOM_RUNS 10000
static void
init_random_ness ()
{
srand(time(NULL));
}
static void
get_random_rect (MetaRectangle *rect)
{
rect->x = rand () % 1600;
rect->y = rand () % 1200;
rect->width = rand () % 1600 + 1;
rect->height = rand () % 1200 + 1;
}
static MetaRectangle*
new_meta_rect (int x, int y, int width, int height)
{
MetaRectangle* temporary;
temporary = g_new (MetaRectangle, 1);
temporary->x = x;
temporary->y = y;
temporary->width = width;
temporary->height = height;
return temporary;
}
static MetaEdge*
new_screen_edge (int x, int y, int width, int height, int side_type)
{
MetaEdge* temporary;
temporary = g_new (MetaEdge, 1);
temporary->rect.x = x;
temporary->rect.y = y;
temporary->rect.width = width;
temporary->rect.height = height;
temporary->side_type = side_type;
temporary->edge_type = META_EDGE_SCREEN;
return temporary;
}
static MetaEdge*
new_xinerama_edge (int x, int y, int width, int height, int side_type)
{
MetaEdge* temporary;
temporary = g_new (MetaEdge, 1);
temporary->rect.x = x;
temporary->rect.y = y;
temporary->rect.width = width;
temporary->rect.height = height;
temporary->side_type = side_type;
temporary->edge_type = META_EDGE_XINERAMA;
return temporary;
}
static void
test_area ()
{
MetaRectangle temp;
int i;
for (i = 0; i < NUM_RANDOM_RUNS; i++)
{
get_random_rect (&temp);
g_assert (meta_rectangle_area (&temp) == temp.width * temp.height);
}
temp = meta_rect (0, 0, 5, 7);
g_assert (meta_rectangle_area (&temp) == 35);
printf ("%s passed.\n", G_STRFUNC);
}
static void
test_intersect ()
{
MetaRectangle a = {100, 200, 50, 40};
MetaRectangle b = { 0, 50, 110, 152};
MetaRectangle c = { 0, 0, 10, 10};
MetaRectangle d = {100, 100, 50, 50};
MetaRectangle b_intersect_d = {100, 100, 10, 50};
MetaRectangle temp;
MetaRectangle temp2;
meta_rectangle_intersect (&a, &b, &temp);
temp2 = meta_rect (100, 200, 10, 2);
g_assert (meta_rectangle_equal (&temp, &temp2));
g_assert (meta_rectangle_area (&temp) == 20);
meta_rectangle_intersect (&a, &c, &temp);
g_assert (meta_rectangle_area (&temp) == 0);
meta_rectangle_intersect (&a, &d, &temp);
g_assert (meta_rectangle_area (&temp) == 0);
meta_rectangle_intersect (&b, &d, &b);
g_assert (meta_rectangle_equal (&b, &b_intersect_d));
printf ("%s passed.\n", G_STRFUNC);
}
static void
test_equal ()
{
MetaRectangle a = {10, 12, 4, 18};
MetaRectangle b = a;
MetaRectangle c = {10, 12, 4, 19};
MetaRectangle d = {10, 12, 7, 18};
MetaRectangle e = {10, 62, 4, 18};
MetaRectangle f = {27, 12, 4, 18};
g_assert ( meta_rectangle_equal (&a, &b));
g_assert (!meta_rectangle_equal (&a, &c));
g_assert (!meta_rectangle_equal (&a, &d));
g_assert (!meta_rectangle_equal (&a, &e));
g_assert (!meta_rectangle_equal (&a, &f));
printf ("%s passed.\n", G_STRFUNC);
}
static void
test_overlap_funcs ()
{
MetaRectangle temp1, temp2;
int i;
for (i = 0; i < NUM_RANDOM_RUNS; i++)
{
get_random_rect (&temp1);
get_random_rect (&temp2);
g_assert (meta_rectangle_overlap (&temp1, &temp2) ==
(meta_rectangle_horiz_overlap (&temp1, &temp2) &&
meta_rectangle_vert_overlap (&temp1, &temp2)));
}
temp1 = meta_rect ( 0, 0, 10, 10);
temp2 = meta_rect (20, 0, 10, 5);
g_assert (!meta_rectangle_overlap (&temp1, &temp2));
g_assert (!meta_rectangle_horiz_overlap (&temp1, &temp2));
g_assert ( meta_rectangle_vert_overlap (&temp1, &temp2));
printf ("%s passed.\n", G_STRFUNC);
}
static void
test_basic_fitting ()
{
MetaRectangle temp1, temp2, temp3;
int i;
/* Four cases:
* case temp1 fits temp2 temp1 could fit temp2
* 1 Y Y
* 2 N Y
* 3 Y N
* 4 N N
* Of the four cases, case 3 is impossible. An alternate way of looking
* at this table is that either the middle column must be no, or the last
* column must be yes. So we test that. Also, we can repeat the test
* reversing temp1 and temp2.
*/
for (i = 0; i < NUM_RANDOM_RUNS; i++)
{
get_random_rect (&temp1);
get_random_rect (&temp2);
g_assert (meta_rectangle_contains_rect (&temp1, &temp2) == FALSE ||
meta_rectangle_could_fit_rect (&temp1, &temp2) == TRUE);
g_assert (meta_rectangle_contains_rect (&temp2, &temp1) == FALSE ||
meta_rectangle_could_fit_rect (&temp2, &temp1) == TRUE);
}
temp1 = meta_rect ( 0, 0, 10, 10);
temp2 = meta_rect ( 5, 5, 5, 5);
temp3 = meta_rect ( 8, 2, 3, 7);
g_assert ( meta_rectangle_contains_rect (&temp1, &temp2));
g_assert (!meta_rectangle_contains_rect (&temp2, &temp1));
g_assert (!meta_rectangle_contains_rect (&temp1, &temp3));
g_assert ( meta_rectangle_could_fit_rect (&temp1, &temp3));
g_assert (!meta_rectangle_could_fit_rect (&temp3, &temp2));
printf ("%s passed.\n", G_STRFUNC);
}
static void
free_strut_list (GSList *struts)
{
GSList *tmp = struts;
while (tmp)
{
g_free (tmp->data);
tmp = tmp->next;
}
g_slist_free (struts);
}
static GSList*
get_strut_list (int which)
{
GSList *struts;
struts = NULL;
g_assert (which >=0 && which <= 6);
switch (which)
{
case 0:
break;
case 1:
struts = g_slist_prepend (struts, new_meta_rect ( 0, 0, 1600, 20));
struts = g_slist_prepend (struts, new_meta_rect ( 400, 1160, 1600, 40));
break;
case 2:
struts = g_slist_prepend (struts, new_meta_rect ( 0, 0, 1600, 20));
struts = g_slist_prepend (struts, new_meta_rect ( 800, 1100, 400, 100));
struts = g_slist_prepend (struts, new_meta_rect ( 300, 1150, 150, 50));
break;
case 3:
struts = g_slist_prepend (struts, new_meta_rect ( 0, 0, 1600, 20));
struts = g_slist_prepend (struts, new_meta_rect ( 800, 1100, 400, 100));
struts = g_slist_prepend (struts, new_meta_rect ( 300, 1150, 80, 50));
struts = g_slist_prepend (struts, new_meta_rect ( 700, 525, 200, 150));
break;
case 4:
struts = g_slist_prepend (struts, new_meta_rect ( 0, 0, 800, 1200));
struts = g_slist_prepend (struts, new_meta_rect ( 800, 0, 1600, 20));
break;
case 5:
struts = g_slist_prepend (struts, new_meta_rect ( 800, 0, 1600, 20));
struts = g_slist_prepend (struts, new_meta_rect ( 0, 0, 800, 1200));
struts = g_slist_prepend (struts, new_meta_rect ( 800, 10, 800, 1200));
break;
case 6:
struts = g_slist_prepend (struts, new_meta_rect ( 0, 0, 1600, 40));
struts = g_slist_prepend (struts, new_meta_rect ( 0, 0, 1600, 20));
break;
}
return struts;
}
static GList*
get_screen_region (int which)
{
GList *ret;
GSList *struts;
MetaRectangle basic_rect;
basic_rect = meta_rect (0, 0, 1600, 1200);
ret = NULL;
struts = get_strut_list (which);
ret = meta_rectangle_get_minimal_spanning_set_for_region (&basic_rect, struts);
free_strut_list (struts);
return ret;
}
static GList*
get_screen_edges (int which)
{
GList *ret;
GSList *struts;
MetaRectangle basic_rect;
basic_rect = meta_rect (0, 0, 1600, 1200);
ret = NULL;
struts = get_strut_list (which);
ret = meta_rectangle_find_onscreen_edges (&basic_rect, struts);
free_strut_list (struts);
return ret;
}
static GList*
get_xinerama_edges (int which_xinerama_set, int which_strut_set)
{
GList *ret;
GSList *struts;
GList *xins;
xins = NULL;
g_assert (which_xinerama_set >=0 && which_xinerama_set <= 3);
switch (which_xinerama_set)
{
case 0:
xins = g_list_prepend (xins, new_meta_rect ( 0, 0, 1600, 1200));
break;
case 1:
xins = g_list_prepend (xins, new_meta_rect ( 0, 0, 800, 1200));
xins = g_list_prepend (xins, new_meta_rect (800, 0, 800, 1200));
break;
case 2:
xins = g_list_prepend (xins, new_meta_rect ( 0, 0, 1600, 600));
xins = g_list_prepend (xins, new_meta_rect ( 0, 600, 1600, 600));
break;
case 3:
xins = g_list_prepend (xins, new_meta_rect ( 0, 0, 1600, 600));
xins = g_list_prepend (xins, new_meta_rect ( 0, 600, 800, 600));
xins = g_list_prepend (xins, new_meta_rect (800, 600, 800, 600));
break;
}
ret = NULL;
struts = get_strut_list (which_strut_set);
ret = meta_rectangle_find_nonintersected_xinerama_edges (xins, struts);
free_strut_list (struts);
meta_rectangle_free_list_and_elements (xins);
return ret;
}
#if 0
static void
test_merge_regions ()
{
/* logarithmically distributed random number of struts (range?)
* logarithmically distributed random size of struts (up to screen size???)
* uniformly distributed location of center of struts (within screen)
* merge all regions that are possible
* print stats on problem setup
* number of (non-completely-occluded?) struts
* percentage of screen covered
* length of resulting non-minimal spanning set
* length of resulting minimal spanning set
* print stats on merged regions:
* number boxes merged
* number of those merges that were of the form A contains B
* number of those merges that were of the form A partially contains B
* number of those merges that were of the form A is adjacent to B
*/
GList* region;
GList* compare;
int num_contains, num_merged, num_part_contains, num_adjacent;
num_contains = num_merged = num_part_contains = num_adjacent = 0;
compare = region = get_screen_region (2);
g_assert (region);
printf ("Merging stats:\n");
printf (" Length of initial list: %d\n", g_list_length (region));
#ifdef PRINT_DEBUG
char rect1[RECT_LENGTH], rect2[RECT_LENGTH];
char region_list[(RECT_LENGTH + 2) * g_list_length (region)];
meta_rectangle_region_to_string (region, ", ", region_list);
printf (" Initial rectangles: %s\n", region_list);
#endif
while (compare && compare->next)
{
MetaRectangle *a = compare->data;
GList *other = compare->next;
g_assert (a->width > 0 && a->height > 0);
while (other)
{
MetaRectangle *b = other->data;
GList *delete_me = NULL;
g_assert (b->width > 0 && b->height > 0);
#ifdef PRINT_DEBUG
printf (" -- Comparing %s to %s --\n",
meta_rectangle_to_string (a, rect1),
meta_rectangle_to_string (b, rect2));
#endif
/* If a contains b, just remove b */
if (meta_rectangle_contains_rect (a, b))
{
delete_me = other;
num_contains++;
num_merged++;
}
/* If b contains a, just remove a */
else if (meta_rectangle_contains_rect (a, b))
{
delete_me = compare;
num_contains++;
num_merged++;
}
/* If a and b might be mergeable horizontally */
else if (a->y == b->y && a->height == b->height)
{
/* If a and b overlap */
if (meta_rectangle_overlap (a, b))
{
int new_x = MIN (a->x, b->x);
a->width = MAX (a->x + a->width, b->x + b->width) - new_x;
a->x = new_x;
delete_me = other;
num_part_contains++;
num_merged++;
}
/* If a and b are adjacent */
else if (a->x + a->width == b->x || a->x == b->x + b->width)
{
int new_x = MIN (a->x, b->x);
a->width = MAX (a->x + a->width, b->x + b->width) - new_x;
a->x = new_x;
delete_me = other;
num_adjacent++;
num_merged++;
}
}
/* If a and b might be mergeable vertically */
else if (a->x == b->x && a->width == b->width)
{
/* If a and b overlap */
if (meta_rectangle_overlap (a, b))
{
int new_y = MIN (a->y, b->y);
a->height = MAX (a->y + a->height, b->y + b->height) - new_y;
a->y = new_y;
delete_me = other;
num_part_contains++;
num_merged++;
}
/* If a and b are adjacent */
else if (a->y + a->height == b->y || a->y == b->y + b->height)
{
int new_y = MIN (a->y, b->y);
a->height = MAX (a->y + a->height, b->y + b->height) - new_y;
a->y = new_y;
delete_me = other;
num_adjacent++;
num_merged++;
}
}
other = other->next;
/* Delete any rectangle in the list that is no longer wanted */
if (delete_me != NULL)
{
#ifdef PRINT_DEBUG
MetaRectangle *bla = delete_me->data;
printf (" Deleting rect %s\n",
meta_rectangle_to_string (bla, rect1));
#endif
/* Deleting the rect we're compare others to is a little tricker */
if (compare == delete_me)
{
compare = compare->next;
other = compare->next;
a = compare->data;
}
/* Okay, we can free it now */
g_free (delete_me->data);
region = g_list_delete_link (region, delete_me);
}
#ifdef PRINT_DEBUG
char region_list[(RECT_LENGTH + 2) * g_list_length (region)];
meta_rectangle_region_to_string (region, ", ", region_list);
printf (" After comparison, new list is: %s\n", region_list);
#endif
}
compare = compare->next;
}
printf (" Num rectangles contained in others : %d\n",
num_contains);
printf (" Num rectangles partially contained in others: %d\n",
num_part_contains);
printf (" Num rectangles adjacent to others : %d\n",
num_adjacent);
printf (" Num rectangles merged with others : %d\n",
num_merged);
#ifdef PRINT_DEBUG
char region_list2[(RECT_LENGTH + 2) * g_list_length (region)];
meta_rectangle_region_to_string (region, ", ", region_list2);
printf (" Final rectangles: %s\n", region_list2);
#endif
meta_rectangle_free_spanning_set (region);
region = NULL;
printf ("%s passed.\n", G_STRFUNC);
}
#endif
static void
verify_lists_are_equal (GList *code, GList *answer)
{
int which = 0;
while (code && answer)
{
MetaRectangle *a = code->data;
MetaRectangle *b = answer->data;
if (a->x != b->x ||
a->y != b->y ||
a->width != b->width ||
a->height != b->height)
{
g_error ("%dth item in code answer answer lists do not match; "
"code rect: %d,%d + %d,%d; answer rect: %d,%d + %d,%d\n",
which,
a->x, a->y, a->width, a->height,
b->x, b->y, b->width, b->height);
}
code = code->next;
answer = answer->next;
which++;
}
/* Ought to be at the end of both lists; check if we aren't */
if (code)
{
MetaRectangle *tmp = code->data;
g_error ("code list longer than answer list by %d items; "
"first extra item: %d,%d +%d,%d\n",
g_list_length (code),
tmp->x, tmp->y, tmp->width, tmp->height);
}
if (answer)
{
MetaRectangle *tmp = answer->data;
g_error ("answer list longer than code list by %d items; "
"first extra item: %d,%d +%d,%d\n",
g_list_length (answer),
tmp->x, tmp->y, tmp->width, tmp->height);
}
}
static void
test_regions_okay ()
{
GList* region;
GList* tmp;
/*************************************************************/
/* Make sure test region 0 has the right spanning rectangles */
/*************************************************************/
region = get_screen_region (0);
tmp = NULL;
tmp = g_list_prepend (tmp, new_meta_rect (0, 0, 1600, 1200));
verify_lists_are_equal (region, tmp);
meta_rectangle_free_list_and_elements (tmp);
meta_rectangle_free_list_and_elements (region);
/*************************************************************/
/* Make sure test region 1 has the right spanning rectangles */
/*************************************************************/
region = get_screen_region (1);
tmp = NULL;
tmp = g_list_prepend (tmp, new_meta_rect (0, 20, 400, 1180));
tmp = g_list_prepend (tmp, new_meta_rect (0, 20, 1600, 1140));
verify_lists_are_equal (region, tmp);
meta_rectangle_free_list_and_elements (tmp);
meta_rectangle_free_list_and_elements (region);
/*************************************************************/
/* Make sure test region 2 has the right spanning rectangles */
/*************************************************************/
region = get_screen_region (2);
tmp = NULL;
tmp = g_list_prepend (tmp, new_meta_rect ( 0, 20, 300, 1180));
tmp = g_list_prepend (tmp, new_meta_rect ( 450, 20, 350, 1180));
tmp = g_list_prepend (tmp, new_meta_rect (1200, 20, 400, 1180));
tmp = g_list_prepend (tmp, new_meta_rect ( 0, 20, 800, 1130));
tmp = g_list_prepend (tmp, new_meta_rect ( 0, 20, 1600, 1080));
verify_lists_are_equal (region, tmp);
meta_rectangle_free_list_and_elements (tmp);
meta_rectangle_free_list_and_elements (region);
/*************************************************************/
/* Make sure test region 3 has the right spanning rectangles */
/*************************************************************/
region = get_screen_region (3);
tmp = NULL;
tmp = g_list_prepend (tmp, new_meta_rect ( 380, 675, 420, 525)); // 220500
tmp = g_list_prepend (tmp, new_meta_rect ( 0, 20, 300, 1180)); // 354000
tmp = g_list_prepend (tmp, new_meta_rect ( 380, 20, 320, 1180)); // 377600
tmp = g_list_prepend (tmp, new_meta_rect ( 0, 675, 800, 475)); // 380000
tmp = g_list_prepend (tmp, new_meta_rect (1200, 20, 400, 1180)); // 472000
tmp = g_list_prepend (tmp, new_meta_rect ( 0, 675, 1600, 425)); // 680000
tmp = g_list_prepend (tmp, new_meta_rect ( 900, 20, 700, 1080)); // 756000
tmp = g_list_prepend (tmp, new_meta_rect ( 0, 20, 700, 1130)); // 791000
tmp = g_list_prepend (tmp, new_meta_rect ( 0, 20, 1600, 505)); // 808000
#if 0
printf ("Got to here...\n");
char region_list[(RECT_LENGTH+2) * g_list_length (region)];
char tmp_list[ (RECT_LENGTH+2) * g_list_length (tmp)];
meta_rectangle_region_to_string (region, ", ", region_list);
meta_rectangle_region_to_string (region, ", ", tmp_list);
printf ("%s vs. %s\n", region_list, tmp_list);
#endif
verify_lists_are_equal (region, tmp);
meta_rectangle_free_list_and_elements (tmp);
meta_rectangle_free_list_and_elements (region);
/*************************************************************/
/* Make sure test region 4 has the right spanning rectangles */
/*************************************************************/
region = get_screen_region (4);
tmp = NULL;
tmp = g_list_prepend (tmp, new_meta_rect ( 800, 20, 800, 1180));
verify_lists_are_equal (region, tmp);
meta_rectangle_free_list_and_elements (tmp);
meta_rectangle_free_list_and_elements (region);
/*************************************************************/
/* Make sure test region 5 has the right spanning rectangles */
/*************************************************************/
printf ("The next test intentionally causes a warning, "
"but it can be ignored.\n");
region = get_screen_region (5);
verify_lists_are_equal (region, NULL);
/* FIXME: Still to do:
* - Create random struts and check the regions somehow
*/
printf ("%s passed.\n", G_STRFUNC);
}
static void
test_region_fitting ()
{
GList* region;
MetaRectangle rect;
/* See test_basic_fitting() for how/why these automated random tests work */
int i;
region = get_screen_region (3);
for (i = 0; i < NUM_RANDOM_RUNS; i++)
{
get_random_rect (&rect);
g_assert (meta_rectangle_contained_in_region (region, &rect) == FALSE ||
meta_rectangle_could_fit_in_region (region, &rect) == TRUE);
}
meta_rectangle_free_list_and_elements (region);
/* Do some manual tests too */
region = get_screen_region (1);
rect = meta_rect (50, 50, 400, 400);
g_assert (meta_rectangle_could_fit_in_region (region, &rect));
g_assert (meta_rectangle_contained_in_region (region, &rect));
rect = meta_rect (250, 0, 500, 1150);
g_assert (!meta_rectangle_could_fit_in_region (region, &rect));
g_assert (!meta_rectangle_contained_in_region (region, &rect));
rect = meta_rect (250, 0, 400, 400);
g_assert (meta_rectangle_could_fit_in_region (region, &rect));
g_assert (!meta_rectangle_contained_in_region (region, &rect));
meta_rectangle_free_list_and_elements (region);
region = get_screen_region (2);
rect = meta_rect (1000, 50, 600, 1100);
g_assert (meta_rectangle_could_fit_in_region (region, &rect));
g_assert (!meta_rectangle_contained_in_region (region, &rect));
meta_rectangle_free_list_and_elements (region);
printf ("%s passed.\n", G_STRFUNC);
}
static void
test_clamping_to_region ()
{
GList* region;
MetaRectangle rect;
MetaRectangle min_size;
FixedDirections fixed_directions;
int i;
min_size.height = min_size.width = 1;
fixed_directions = 0;
region = get_screen_region (3);
for (i = 0; i < NUM_RANDOM_RUNS; i++)
{
MetaRectangle temp;
get_random_rect (&rect);
temp = rect;
meta_rectangle_clamp_to_fit_into_region (region,
fixed_directions,
&rect,
&min_size);
g_assert (meta_rectangle_could_fit_in_region (region, &rect) == TRUE);
g_assert (rect.x == temp.x && rect.y == temp.y);
}
meta_rectangle_free_list_and_elements (region);
/* Do some manual tests too */
region = get_screen_region (1);
rect = meta_rect (50, 50, 10000, 10000);
meta_rectangle_clamp_to_fit_into_region (region,
fixed_directions,
&rect,
&min_size);
g_assert (rect.width == 1600 && rect.height == 1140);
rect = meta_rect (275, -50, 410, 10000);
meta_rectangle_clamp_to_fit_into_region (region,
fixed_directions,
&rect,
&min_size);
g_assert (rect.width == 400 && rect.height == 1180);
rect = meta_rect (50, 50, 10000, 10000);
min_size.height = 1170;
meta_rectangle_clamp_to_fit_into_region (region,
fixed_directions,
&rect,
&min_size);
g_assert (rect.width == 400 && rect.height == 1180);
printf ("The next test intentionally causes a warning, "
"but it can be ignored.\n");
rect = meta_rect (50, 50, 10000, 10000);
min_size.width = 600; min_size.height = 1170;
meta_rectangle_clamp_to_fit_into_region (region,
fixed_directions,
&rect,
&min_size);
g_assert (rect.width == 600 && rect.height == 1170);
rect = meta_rect (350, 50, 100, 1100);
min_size.width = 1; min_size.height = 1;
fixed_directions = FIXED_DIRECTION_X;
meta_rectangle_clamp_to_fit_into_region (region,
fixed_directions,
&rect,
&min_size);
g_assert (rect.width == 100 && rect.height == 1100);
rect = meta_rect (300, 70, 500, 1100);
min_size.width = 1; min_size.height = 1;
fixed_directions = FIXED_DIRECTION_Y;
meta_rectangle_clamp_to_fit_into_region (region,
fixed_directions,
&rect,
&min_size);
g_assert (rect.width == 400 && rect.height == 1100);
printf ("The next test intentionally causes a warning, "
"but it can be ignored.\n");
rect = meta_rect (300, 70, 999999, 999999);
min_size.width = 100; min_size.height = 200;
fixed_directions = FIXED_DIRECTION_Y;
meta_rectangle_clamp_to_fit_into_region (region,
fixed_directions,
&rect,
&min_size);
g_assert (rect.width == 100 && rect.height == 999999);
meta_rectangle_free_list_and_elements (region);
printf ("%s passed.\n", G_STRFUNC);
}
static gboolean
rect_overlaps_region (const GList *spanning_rects,
const MetaRectangle *rect)
{
/* FIXME: Should I move this to boxes.[ch]? */
const GList *temp;
gboolean overlaps;
temp = spanning_rects;
overlaps = FALSE;
while (!overlaps && temp != NULL)
{
overlaps = overlaps || meta_rectangle_overlap (temp->data, rect);
temp = temp->next;
}
return overlaps;
}
gboolean time_to_print = FALSE;
static void
test_clipping_to_region ()
{
GList* region;
MetaRectangle rect, temp;
FixedDirections fixed_directions = 0;
int i;
region = get_screen_region (3);
for (i = 0; i < NUM_RANDOM_RUNS; i++)
{
get_random_rect (&rect);
if (rect_overlaps_region (region, &rect))
{
meta_rectangle_clip_to_region (region, 0, &rect);
g_assert (meta_rectangle_contained_in_region (region, &rect) == TRUE);
}
}
meta_rectangle_free_list_and_elements (region);
/* Do some manual tests too */
region = get_screen_region (2);
rect = meta_rect (-50, -10, 10000, 10000);
meta_rectangle_clip_to_region (region,
fixed_directions,
&rect);
g_assert (meta_rectangle_equal (region->data, &rect));
rect = meta_rect (300, 1000, 400, 200);
temp = meta_rect (300, 1000, 400, 150);
meta_rectangle_clip_to_region (region,
fixed_directions,
&rect);
g_assert (meta_rectangle_equal (&rect, &temp));
rect = meta_rect (400, 1000, 300, 200);
temp = meta_rect (450, 1000, 250, 200);
meta_rectangle_clip_to_region (region,
fixed_directions,
&rect);
g_assert (meta_rectangle_equal (&rect, &temp));
rect = meta_rect (400, 1000, 300, 200);
temp = meta_rect (400, 1000, 300, 150);
meta_rectangle_clip_to_region (region,
FIXED_DIRECTION_X,
&rect);
g_assert (meta_rectangle_equal (&rect, &temp));
rect = meta_rect (400, 1000, 300, 200);
temp = meta_rect (400, 1000, 300, 150);
meta_rectangle_clip_to_region (region,
FIXED_DIRECTION_X,
&rect);
g_assert (meta_rectangle_equal (&rect, &temp));
meta_rectangle_free_list_and_elements (region);
printf ("%s passed.\n", G_STRFUNC);
}
static void
test_shoving_into_region ()
{
GList* region;
MetaRectangle rect, temp;
FixedDirections fixed_directions = 0;
int i;
region = get_screen_region (3);
for (i = 0; i < NUM_RANDOM_RUNS; i++)
{
get_random_rect (&rect);
if (meta_rectangle_could_fit_in_region (region, &rect))
{
meta_rectangle_shove_into_region (region, 0, &rect);
g_assert (meta_rectangle_contained_in_region (region, &rect));
}
}
meta_rectangle_free_list_and_elements (region);
/* Do some manual tests too */
region = get_screen_region (2);
rect = meta_rect (300, 1000, 400, 200);
temp = meta_rect (300, 950, 400, 200);
meta_rectangle_shove_into_region (region,
fixed_directions,
&rect);
g_assert (meta_rectangle_equal (&rect, &temp));
rect = meta_rect (425, 1000, 300, 200);
temp = meta_rect (450, 1000, 300, 200);
meta_rectangle_shove_into_region (region,
fixed_directions,
&rect);
g_assert (meta_rectangle_equal (&rect, &temp));
rect = meta_rect (425, 1000, 300, 200);
temp = meta_rect (425, 950, 300, 200);
meta_rectangle_shove_into_region (region,
FIXED_DIRECTION_X,
&rect);
g_assert (meta_rectangle_equal (&rect, &temp));
rect = meta_rect ( 300, 1000, 400, 200);
temp = meta_rect (1200, 1000, 400, 200);
meta_rectangle_shove_into_region (region,
FIXED_DIRECTION_Y,
&rect);
g_assert (meta_rectangle_equal (&rect, &temp));
rect = meta_rect ( 800, 1150, 400, 50); /* Completely "offscreen" :) */
temp = meta_rect ( 800, 1050, 400, 50);
meta_rectangle_shove_into_region (region,
0,
&rect);
g_assert (meta_rectangle_equal (&rect, &temp));
rect = meta_rect (-1000, 0, 400, 150); /* Offscreen in 2 directions */
temp = meta_rect ( 0, 20, 400, 150);
meta_rectangle_shove_into_region (region,
0,
&rect);
g_assert (meta_rectangle_equal (&rect, &temp));
meta_rectangle_free_list_and_elements (region);
printf ("%s passed.\n", G_STRFUNC);
}
static void
verify_edge_lists_are_equal (GList *code, GList *answer)
{
int which = 0;
while (code && answer)
{
MetaEdge *a = code->data;
MetaEdge *b = answer->data;
if (!meta_rectangle_equal (&a->rect, &b->rect) ||
a->side_type != b->side_type ||
a->edge_type != b->edge_type)
{
g_error ("%dth item in code answer answer lists do not match; "
"code rect: %d,%d + %d,%d; answer rect: %d,%d + %d,%d\n",
which,
a->rect.x, a->rect.y, a->rect.width, a->rect.height,
b->rect.x, b->rect.y, b->rect.width, b->rect.height);
}
code = code->next;
answer = answer->next;
which++;
}
/* Ought to be at the end of both lists; check if we aren't */
if (code)
{
MetaEdge *tmp = code->data;
g_error ("code list longer than answer list by %d items; "
"first extra item rect: %d,%d +%d,%d\n",
g_list_length (code),
tmp->rect.x, tmp->rect.y, tmp->rect.width, tmp->rect.height);
}
if (answer)
{
MetaEdge *tmp = answer->data;
g_error ("answer list longer than code list by %d items; "
"first extra item rect: %d,%d +%d,%d\n",
g_list_length (answer),
tmp->rect.x, tmp->rect.y, tmp->rect.width, tmp->rect.height);
}
}
static void
test_find_onscreen_edges ()
{
GList* edges;
GList* tmp;
int left = META_DIRECTION_LEFT;
int right = META_DIRECTION_RIGHT;
int top = META_DIRECTION_TOP;
int bottom = META_DIRECTION_BOTTOM;
/*************************************************/
/* Make sure test region 0 has the correct edges */
/*************************************************/
edges = get_screen_edges (0);
tmp = NULL;
tmp = g_list_prepend (tmp, new_screen_edge ( 0, 1200, 1600, 0, bottom));
tmp = g_list_prepend (tmp, new_screen_edge ( 0, 0, 1600, 0, top));
tmp = g_list_prepend (tmp, new_screen_edge (1600, 0, 0, 1200, right));
tmp = g_list_prepend (tmp, new_screen_edge ( 0, 0, 0, 1200, left));
verify_edge_lists_are_equal (edges, tmp);
meta_rectangle_free_list_and_elements (tmp);
meta_rectangle_free_list_and_elements (edges);
/*************************************************/
/* Make sure test region 1 has the correct edges */
/*************************************************/
edges = get_screen_edges (1);
tmp = NULL;
tmp = g_list_prepend (tmp, new_screen_edge ( 0, 1200, 400, 0, bottom));
tmp = g_list_prepend (tmp, new_screen_edge ( 400, 1160, 1200, 0, bottom));
tmp = g_list_prepend (tmp, new_screen_edge ( 0, 20, 1600, 0, top));
tmp = g_list_prepend (tmp, new_screen_edge (1600, 20, 0, 1140, right));
tmp = g_list_prepend (tmp, new_screen_edge ( 400, 1160, 0, 40, right));
tmp = g_list_prepend (tmp, new_screen_edge ( 0, 20, 0, 1180, left));
verify_edge_lists_are_equal (edges, tmp);
meta_rectangle_free_list_and_elements (tmp);
meta_rectangle_free_list_and_elements (edges);
/*************************************************/
/* Make sure test region 2 has the correct edges */
/*************************************************/
edges = get_screen_edges (2);
tmp = NULL;
tmp = g_list_prepend (tmp, new_screen_edge (1200, 1200, 400, 0, bottom));
tmp = g_list_prepend (tmp, new_screen_edge ( 450, 1200, 350, 0, bottom));
tmp = g_list_prepend (tmp, new_screen_edge ( 0, 1200, 300, 0, bottom));
tmp = g_list_prepend (tmp, new_screen_edge ( 300, 1150, 150, 0, bottom));
tmp = g_list_prepend (tmp, new_screen_edge ( 800, 1100, 400, 0, bottom));
tmp = g_list_prepend (tmp, new_screen_edge ( 0, 20, 1600, 0, top));
tmp = g_list_prepend (tmp, new_screen_edge (1600, 20, 0, 1180, right));
tmp = g_list_prepend (tmp, new_screen_edge ( 800, 1100, 0, 100, right));
tmp = g_list_prepend (tmp, new_screen_edge ( 300, 1150, 0, 50, right));
tmp = g_list_prepend (tmp, new_screen_edge (1200, 1100, 0, 100, left));
tmp = g_list_prepend (tmp, new_screen_edge ( 450, 1150, 0, 50, left));
tmp = g_list_prepend (tmp, new_screen_edge ( 0, 20, 0, 1180, left));
verify_edge_lists_are_equal (edges, tmp);
meta_rectangle_free_list_and_elements (tmp);
meta_rectangle_free_list_and_elements (edges);
/*************************************************/
/* Make sure test region 3 has the correct edges */
/*************************************************/
edges = get_screen_edges (3);
tmp = NULL;
tmp = g_list_prepend (tmp, new_screen_edge (1200, 1200, 400, 0, bottom));
tmp = g_list_prepend (tmp, new_screen_edge ( 380, 1200, 420, 0, bottom));
tmp = g_list_prepend (tmp, new_screen_edge ( 0, 1200, 300, 0, bottom));
tmp = g_list_prepend (tmp, new_screen_edge ( 300, 1150, 80, 0, bottom));
tmp = g_list_prepend (tmp, new_screen_edge ( 800, 1100, 400, 0, bottom));
tmp = g_list_prepend (tmp, new_screen_edge ( 700, 525, 200, 0, bottom));
tmp = g_list_prepend (tmp, new_screen_edge ( 700, 675, 200, 0, top));
tmp = g_list_prepend (tmp, new_screen_edge ( 0, 20, 1600, 0, top));
tmp = g_list_prepend (tmp, new_screen_edge (1600, 20, 0, 1180, right));
tmp = g_list_prepend (tmp, new_screen_edge ( 800, 1100, 0, 100, right));
tmp = g_list_prepend (tmp, new_screen_edge ( 700, 525, 0, 150, right));
tmp = g_list_prepend (tmp, new_screen_edge ( 300, 1150, 0, 50, right));
tmp = g_list_prepend (tmp, new_screen_edge (1200, 1100, 0, 100, left));
tmp = g_list_prepend (tmp, new_screen_edge ( 900, 525, 0, 150, left));
tmp = g_list_prepend (tmp, new_screen_edge ( 380, 1150, 0, 50, left));
tmp = g_list_prepend (tmp, new_screen_edge ( 0, 20, 0, 1180, left));
#if 0
#define FUDGE 50 /* number of edges */
char big_buffer1[(EDGE_LENGTH+2)*FUDGE], big_buffer2[(EDGE_LENGTH+2)*FUDGE];
meta_rectangle_edge_list_to_string (edges, "\n ", big_buffer1);
meta_rectangle_edge_list_to_string (tmp, "\n ", big_buffer2);
printf("Generated edge list:\n %s\nComparison edges list:\n %s\n",
big_buffer1, big_buffer2);
#endif
verify_edge_lists_are_equal (edges, tmp);
meta_rectangle_free_list_and_elements (tmp);
meta_rectangle_free_list_and_elements (edges);
/*************************************************/
/* Make sure test region 4 has the correct edges */
/*************************************************/
edges = get_screen_edges (4);
tmp = NULL;
tmp = g_list_prepend (tmp, new_screen_edge ( 800, 1200, 800, 0, bottom));
tmp = g_list_prepend (tmp, new_screen_edge ( 800, 20, 800, 0, top));
tmp = g_list_prepend (tmp, new_screen_edge (1600, 20, 0, 1180, right));
tmp = g_list_prepend (tmp, new_screen_edge ( 800, 20, 0, 1180, left));
verify_edge_lists_are_equal (edges, tmp);
meta_rectangle_free_list_and_elements (tmp);
meta_rectangle_free_list_and_elements (edges);
/*************************************************/
/* Make sure test region 5 has the correct edges */
/*************************************************/
edges = get_screen_edges (5);
tmp = NULL;
verify_edge_lists_are_equal (edges, tmp);
meta_rectangle_free_list_and_elements (tmp);
meta_rectangle_free_list_and_elements (edges);
/*************************************************/
/* Make sure test region 6 has the correct edges */
/*************************************************/
edges = get_screen_edges (6);
tmp = NULL;
tmp = g_list_prepend (tmp, new_screen_edge ( 0, 1200, 1600, 0, bottom));
tmp = g_list_prepend (tmp, new_screen_edge ( 0, 40, 1600, 0, top));
tmp = g_list_prepend (tmp, new_screen_edge (1600, 40, 0, 1160, right));
tmp = g_list_prepend (tmp, new_screen_edge ( 0, 40, 0, 1160, left));
verify_edge_lists_are_equal (edges, tmp);
meta_rectangle_free_list_and_elements (tmp);
meta_rectangle_free_list_and_elements (edges);
printf ("%s passed.\n", G_STRFUNC);
}
static void
test_find_nonintersected_xinerama_edges ()
{
GList* edges;
GList* tmp;
int left = META_DIRECTION_LEFT;
int right = META_DIRECTION_RIGHT;
int top = META_DIRECTION_TOP;
int bottom = META_DIRECTION_BOTTOM;
/*************************************************************************/
/* Make sure test xinerama set 0 for with region 0 has the correct edges */
/*************************************************************************/
edges = get_xinerama_edges (0, 0);
tmp = NULL;
verify_edge_lists_are_equal (edges, tmp);
meta_rectangle_free_list_and_elements (tmp);
meta_rectangle_free_list_and_elements (edges);
/*************************************************************************/
/* Make sure test xinerama set 2 for with region 1 has the correct edges */
/*************************************************************************/
edges = get_xinerama_edges (2, 1);
tmp = NULL;
tmp = g_list_prepend (tmp, new_xinerama_edge ( 0, 600, 1600, 0, bottom));
tmp = g_list_prepend (tmp, new_xinerama_edge ( 0, 600, 1600, 0, top));
verify_edge_lists_are_equal (edges, tmp);
meta_rectangle_free_list_and_elements (tmp);
meta_rectangle_free_list_and_elements (edges);
/*************************************************************************/
/* Make sure test xinerama set 1 for with region 2 has the correct edges */
/*************************************************************************/
edges = get_xinerama_edges (1, 2);
tmp = NULL;
tmp = g_list_prepend (tmp, new_xinerama_edge ( 800, 20, 0, 1080, right));
tmp = g_list_prepend (tmp, new_xinerama_edge ( 800, 20, 0, 1180, left));
#if 0
#define FUDGE 50
char big_buffer1[(EDGE_LENGTH+2)*FUDGE], big_buffer2[(EDGE_LENGTH+2)*FUDGE];
meta_rectangle_edge_list_to_string (edges, "\n ", big_buffer1);
meta_rectangle_edge_list_to_string (tmp, "\n ", big_buffer2);
printf("Generated edge list:\n %s\nComparison edges list:\n %s\n",
big_buffer1, big_buffer2);
#endif
verify_edge_lists_are_equal (edges, tmp);
meta_rectangle_free_list_and_elements (tmp);
meta_rectangle_free_list_and_elements (edges);
/*************************************************************************/
/* Make sure test xinerama set 3 for with region 3 has the correct edges */
/*************************************************************************/
edges = get_xinerama_edges (3, 3);
tmp = NULL;
tmp = g_list_prepend (tmp, new_xinerama_edge ( 900, 600, 700, 0, bottom));
tmp = g_list_prepend (tmp, new_xinerama_edge ( 0, 600, 700, 0, bottom));
tmp = g_list_prepend (tmp, new_xinerama_edge ( 900, 600, 700, 0, top));
tmp = g_list_prepend (tmp, new_xinerama_edge ( 0, 600, 700, 0, top));
tmp = g_list_prepend (tmp, new_xinerama_edge ( 800, 675, 0, 425, right));
tmp = g_list_prepend (tmp, new_xinerama_edge ( 800, 675, 0, 525, left));
verify_edge_lists_are_equal (edges, tmp);
meta_rectangle_free_list_and_elements (tmp);
meta_rectangle_free_list_and_elements (edges);
/*************************************************************************/
/* Make sure test xinerama set 3 for with region 4 has the correct edges */
/*************************************************************************/
edges = get_xinerama_edges (3, 4);
tmp = NULL;
tmp = g_list_prepend (tmp, new_xinerama_edge ( 800, 600, 800, 0, bottom));
tmp = g_list_prepend (tmp, new_xinerama_edge ( 800, 600, 800, 0, top));
tmp = g_list_prepend (tmp, new_xinerama_edge ( 800, 600, 0, 600, right));
verify_edge_lists_are_equal (edges, tmp);
meta_rectangle_free_list_and_elements (tmp);
meta_rectangle_free_list_and_elements (edges);
/*************************************************************************/
/* Make sure test xinerama set 3 for with region 5has the correct edges */
/*************************************************************************/
edges = get_xinerama_edges (3, 5);
tmp = NULL;
verify_edge_lists_are_equal (edges, tmp);
meta_rectangle_free_list_and_elements (tmp);
meta_rectangle_free_list_and_elements (edges);
printf ("%s passed.\n", G_STRFUNC);
}
static void
test_gravity_resize ()
{
MetaRectangle oldrect, rect, temp;
rect.x = -500; /* Some random amount not equal to oldrect.x to ensure that
* the resize is done with respect to oldrect instead of rect
*/
oldrect = meta_rect ( 50, 300, 250, 400);
temp = meta_rect ( 50, 300, 20, 5);
meta_rectangle_resize_with_gravity (&oldrect,
&rect,
NorthWestGravity,
20,
5);
g_assert (meta_rectangle_equal (&rect, &temp));
rect = meta_rect ( 50, 300, 250, 400);
temp = meta_rect (165, 300, 20, 5);
meta_rectangle_resize_with_gravity (&rect,
&rect,
NorthGravity,
20,
5);
g_assert (meta_rectangle_equal (&rect, &temp));
rect = meta_rect ( 50, 300, 250, 400);
temp = meta_rect (280, 300, 20, 5);
meta_rectangle_resize_with_gravity (&rect,
&rect,
NorthEastGravity,
20,
5);
g_assert (meta_rectangle_equal (&rect, &temp));
rect = meta_rect ( 50, 300, 250, 400);
temp = meta_rect ( 50, 695, 50, 5);
meta_rectangle_resize_with_gravity (&rect,
&rect,
SouthWestGravity,
50,
5);
g_assert (meta_rectangle_equal (&rect, &temp));
rect = meta_rect ( 50, 300, 250, 400);
temp = meta_rect (150, 695, 50, 5);
meta_rectangle_resize_with_gravity (&rect,
&rect,
SouthGravity,
50,
5);
g_assert (meta_rectangle_equal (&rect, &temp));
rect = meta_rect ( 50, 300, 250, 400);
temp = meta_rect (250, 695, 50, 5);
meta_rectangle_resize_with_gravity (&rect,
&rect,
SouthEastGravity,
50,
5);
g_assert (meta_rectangle_equal (&rect, &temp));
rect = meta_rect (167, 738, 237, 843);
temp = meta_rect (167, 1113, 832, 93);
meta_rectangle_resize_with_gravity (&rect,
&rect,
WestGravity,
832,
93);
g_assert (meta_rectangle_equal (&rect, &temp));
rect = meta_rect ( 167, 738, 237, 843);
temp = meta_rect (-131, 1113, 833, 93);
meta_rectangle_resize_with_gravity (&rect,
&rect,
CenterGravity,
832,
93);
g_assert (meta_rectangle_equal (&rect, &temp));
rect = meta_rect (300, 1000, 400, 200);
temp = meta_rect (270, 994, 430, 212);
meta_rectangle_resize_with_gravity (&rect,
&rect,
EastGravity,
430,
211);
g_assert (meta_rectangle_equal (&rect, &temp));
rect = meta_rect (300, 1000, 400, 200);
temp = meta_rect (300, 1000, 430, 211);
meta_rectangle_resize_with_gravity (&rect,
&rect,
StaticGravity,
430,
211);
g_assert (meta_rectangle_equal (&rect, &temp));
printf ("%s passed.\n", G_STRFUNC);
}
static void
test_find_closest_point_to_line ()
{
double x1, y1, x2, y2, px, py, rx, ry;
double answer_x, answer_y;
x1 = 3.0; y1 = 49.0;
x2 = 2.0; y2 = - 1.0;
px = -2.6; py = 19.1;
answer_x = 2.4; answer_y = 19;
meta_rectangle_find_linepoint_closest_to_point (x1, y1,
x2, y2,
px, py,
&rx, &ry);
g_assert (rx == answer_x && ry == answer_y);
/* Special test for x1 == x2, so that slop of line is infinite */
x1 = 3.0; y1 = 49.0;
x2 = 3.0; y2 = - 1.0;
px = -2.6; py = 19.1;
answer_x = 3.0; answer_y = 19.1;
meta_rectangle_find_linepoint_closest_to_point (x1, y1,
x2, y2,
px, py,
&rx, &ry);
g_assert (rx == answer_x && ry == answer_y);
/* Special test for y1 == y2, so perp line has slope of infinity */
x1 = 3.14; y1 = 7.0;
x2 = 2.718; y2 = 7.0;
px = -2.6; py = 19.1;
answer_x = -2.6; answer_y = 7;
meta_rectangle_find_linepoint_closest_to_point (x1, y1,
x2, y2,
px, py,
&rx, &ry);
g_assert (rx == answer_x && ry == answer_y);
/* Test when we the point we want to be closest to is actually on the line */
x1 = 3.0; y1 = 49.0;
x2 = 2.0; y2 = - 1.0;
px = 2.4; py = 19.0;
answer_x = 2.4; answer_y = 19;
meta_rectangle_find_linepoint_closest_to_point (x1, y1,
x2, y2,
px, py,
&rx, &ry);
g_assert (rx == answer_x && ry == answer_y);
printf ("%s passed.\n", G_STRFUNC);
}
int
main()
{
init_random_ness ();
test_area ();
test_intersect ();
test_equal ();
test_overlap_funcs ();
test_basic_fitting ();
test_regions_okay ();
test_region_fitting ();
test_clamping_to_region ();
test_clipping_to_region ();
test_shoving_into_region ();
/* And now the functions dealing with edges more than boxes */
test_find_onscreen_edges ();
test_find_nonintersected_xinerama_edges ();
/* And now the misfit functions that don't quite fit in anywhere else... */
test_gravity_resize ();
test_find_closest_point_to_line ();
printf ("All tests passed.\n");
return 0;
}
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