path: root/tests/canvImg.test

# This file is a Tcl script to test out the procedures in tkCanvImg.c,
# which implement canvas "image" items.  It is organized in the standard
# fashion for Tcl tests.
#
# Copyright (c) 1994 The Regents of the University of California.
# Copyright (c) 1994-1996 Sun Microsystems, Inc.
#
# See the file "license.terms" for information on usage and redistribution
# of this file, and for a DISCLAIMER OF ALL WARRANTIES.
#
# RCS: @(#) $Id: canvImg.test,v 1.2 1998/09/14 18:23:43 stanton Exp $

if {[lsearch [image types] test] < 0} {
    puts "This application hasn't been compiled with the \"test\" image"
    puts "type, so I can't run this test.  Are you sure you're using"
    puts "tktest instead of wish?"
    return
}

if {[info procs test] != "test"} {
    source defs
}

foreach i [winfo children .] {
    destroy $i
}
wm geometry . {}
raise .

eval image delete [image names]
canvas .c
pack .c
update
image create test foo -variable x
image create test foo2 -variable y
foo2 changed 0 0 0 0 80 60
test canvImg-1.1 {options for image items} {
    .c delete all
    .c create image 50 50 -anchor nw -tags i1
    .c itemconfigure i1 -anchor
} {-anchor {} {} center nw}
test canvImg-1.2 {options for image items} {
    .c delete all
    list [catch {.c create image 50 50 -anchor gorp -tags i1} msg] $msg
} {1 {bad anchor position "gorp": must be n, ne, e, se, s, sw, w, nw, or center}}
test canvImg-1.3 {options for image items} {
    .c delete all
    .c create image 50 50 -image foo -tags i1
    .c itemconfigure i1 -image
} {-image {} {} {} foo}
test canvImg-1.4 {options for image items} {
    .c delete all
    list [catch {.c create image 50 50 -image unknown -tags i1} msg] $msg
} {1 {image "unknown" doesn't exist}}
test canvImg-1.5 {options for image items} {
    .c delete all
    .c create image 50 50 -image foo -tags {i1 foo}
    .c itemconfigure i1 -tags
} {-tags {} {} {} {i1 foo}}

test canvImg-2.1 {CreateImage procedure} {
    list [catch {.c create image 40} msg] $msg
} {1 {wrong # args: should be ".c create image x y ?options?"}}
test canvImg-2.2 {CreateImage procedure} {
    list [catch {.c create image 40 50 60} msg] $msg
} {1 {unknown option "60"}}
test canvImg-2.3 {CreateImage procedure} {
    .c delete all
    set i [.c create image 50 50]
    list [lindex [.c itemconf $i -anchor] 4] \
	    [lindex [.c itemconf $i -image] 4] \
	    [lindex [.c itemconf $i -tags] 4]
} {center {} {}}
test canvImg-2.4 {CreateImage procedure} {
    list [catch {.c create image xyz 40} msg] $msg
} {1 {bad screen distance "xyz"}}
test canvImg-2.5 {CreateImage procedure} {
    list [catch {.c create image 50 qrs} msg] $msg
} {1 {bad screen distance "qrs"}}
test canvImg-2.6 {CreateImage procedure} {
    list [catch {.c create image 50 50 -gorp foo} msg] $msg
} {1 {unknown option "-gorp"}}

test canvImg-3.1 {ImageCoords procedure} {
    .c delete all
    .c create image 50 100 -image foo -tags i1
    .c coords i1
} {50.0 100.0}
test canvImg-3.2 {ImageCoords procedure} {
    .c delete all
    .c create image 50 100 -image foo -tags i1
    list [catch {.c coords i1 dumb 100} msg] $msg
} {1 {bad screen distance "dumb"}}
test canvImg-3.3 {ImageCoords procedure} {
    .c delete all
    .c create image 50 100 -image foo -tags i1
    list [catch {.c coords i1 250 dumb0} msg] $msg
} {1 {bad screen distance "dumb0"}}
test canvImg-3.4 {ImageCoords procedure} {
    .c delete all
    .c create image 50 100 -image foo -tags i1
    list [catch {.c coords i1 250} msg] $msg
} {1 {wrong # coordinates: expected 0 or 2, got 1}}
test canvImg-3.5 {ImageCoords procedure} {
    .c delete all
    .c create image 50 100 -image foo -tags i1
    list [catch {.c coords i1 250 300 400} msg] $msg
} {1 {wrong # coordinates: expected 0 or 2, got 3}}

test canvImg-4.1 {ConfiugreImage procedure} {
    .c delete all
    .c create image 50 100 -image foo -tags i1
    update
    set x {}
    .c itemconfigure i1 -image {}
    update
    list $x [.c bbox i1]
} {{{foo free}} {}}
test canvImg-4.2 {ConfiugreImage procedure} {
    .c delete all
    .c create image 50 100 -image foo -tags i1 -anchor nw
    update
    set x {}
    set y {}
    .c itemconfigure i1 -image foo2
    update
    list $x $y [.c bbox i1]
} {{{foo free}} {{foo2 get} {foo2 display 0 0 80 60 30 30}} {50 100 130 160}}
test canvImg-4.3 {ConfiugreImage procedure} {
    .c delete all
    .c create image 50 100 -image foo -tags i1 -anchor nw
    update
    set x {}
    set y {}
    list [catch {.c itemconfigure i1 -image lousy} msg] $msg
} {1 {image "lousy" doesn't exist}}

test canvImg-5.1 {DeleteImage procedure} {
    image create test xyzzy -variable z
    .c delete all
    .c create image 50 100 -image xyzzy -tags i1
    update
    image delete xyzzy
    set z {}
    set names [lsort [image names]]
    .c delete i1
    update
    list $names $z [lsort [image names]]
} {{foo foo2 xyzzy} {} {foo foo2}}
test canvImg-5.2 {DeleteImage procedure (don't delete non-existent image)} {
    .c delete all
    .c create image 50 100 -tags i1
    update
    .c delete i1
    update
} {}

test canvImg-6.1 {ComputeImageBbox procedure} {
    .c delete all
    .c create image 15.51 17.51 -image foo -tags i1 -anchor nw
    .c bbox i1
} {16 18 46 33}
test canvImg-6.2 {ComputeImageBbox procedure} {
    .c delete all
    .c create image 15.49 17.49 -image foo -tags i1 -anchor nw
    .c bbox i1
} {15 17 45 32}
test canvImg-6.3 {ComputeImageBbox procedure} {
    .c delete all
    .c create image 20 30 -tags i1 -anchor nw
    .c bbox i1
} {}
test canvImg-6.4 {ComputeImageBbox procedure} {
    .c delete all
    .c create image 20 30 -image foo -tags i1 -anchor nw
    .c bbox i1
} {20 30 50 45}
test canvImg-6.5 {ComputeImageBbox procedure} {
    .c delete all
    .c create image 20 30 -image foo -tags i1 -anchor n
    .c bbox i1
} {5 30 35 45}
test canvImg-6.6 {ComputeImageBbox procedure} {
    .c delete all
    .c create image 20 30 -image foo -tags i1 -anchor ne
    .c bbox i1
} {-10 30 20 45}
test canvImg-6.7 {ComputeImageBbox procedure} {
    .c delete all
    .c create image 20 30 -image foo -tags i1 -anchor e
    .c bbox i1
} {-10 23 20 38}
test canvImg-6.8 {ComputeImageBbox procedure} {
    .c delete all
    .c create image 20 30 -image foo -tags i1 -anchor se
    .c bbox i1
} {-10 15 20 30}
test canvImg-6.9 {ComputeImageBbox procedure} {
    .c delete all
    .c create image 20 30 -image foo -tags i1 -anchor s
    .c bbox i1
} {5 15 35 30}
test canvImg-6.10 {ComputeImageBbox procedure} {
    .c delete all
    .c create image 20 30 -image foo -tags i1 -anchor sw
    .c bbox i1
} {20 15 50 30}
test canvImg-6.11 {ComputeImageBbox procedure} {
    .c delete all
    .c create image 20 30 -image foo -tags i1 -anchor w
    .c bbox i1
} {20 23 50 38}
test canvImg-6.12 {ComputeImageBbox procedure} {
    .c delete all
    .c create image 20 30 -image foo -tags i1 -anchor center
    .c bbox i1
} {5 23 35 38}

# The following test is non-portable because of differences in
# coordinate rounding on some machines (does 0.5 round  up?).

test canvImg-7.1 {DisplayImage procedure} {nonPortable} {
    .c delete all
    .c create image 50 100 -image foo -tags i1 -anchor nw
    update
    set x {}
    .c create rect 55 110 65 115 -width 1 -outline black -fill white
    update
    set x
} {{foo display 4 9 12 6 30 30}}
test canvImg-7.2 {DisplayImage procedure, no image} {
    .c delete all
    .c create image 50 100 -tags i1
    update
    .c create rect 55 110 65 115 -width 1 -outline black -fill white
    update
} {}

set i 1
.c delete all
.c create image 50 100 -image foo -tags image -anchor nw
.c create rect 10 10 20 20 -tags rect -fill black -width 0 -outline {}
foreach check {
    {{50 70 80 81} {70 90} {rect}}
    {{50 70 80 79} {70 90} {image}}
    {{99 70 110 81} {90 90} {rect}}
    {{101 70 110 79} {90 90} {image}}
    {{99 100 110 115} {90 110} {rect}}
    {{101 100 110 115} {90 110} {image}}
    {{99 134 110 145} {90 125} {rect}}
    {{101 136 110 145} {90 125} {image}}
    {{50 134 80 145} {70 125} {rect}}
    {{50 136 80 145} {70 125} {image}}
    {{20 134 31 145} {40 125} {rect}}
    {{20 136 29 145} {40 125} {image}}
    {{20 100 31 115} {40 110} {rect}}
    {{20 100 29 115} {40 110} {image}}
    {{20 70 31 80} {40 90} {rect}}
    {{20 70 29 79} {40 90} {image}}
    {{60 70 69 109} {70 110} {image}}
    {{60 70 71 111} {70 110} {rect}}
} {
    test canvImg-8.$i {ImageToPoint procedure} {
	eval .c coords rect [lindex $check 0]
	.c gettags [eval .c find closest [lindex $check 1]]
    } [lindex $check 2]
    incr i
}

.c delete all
.c create image 50 100 -image foo -tags image -anchor nw
test canvImg-8.19 {ImageToArea procedure} {
    .c gettags [.c find overlapping 60 0 70 99]
} {}
test canvImg-8.20 {ImageToArea procedure} {
    .c gettags [.c find overlapping 60 0 70 99.999]
} {}
test canvImg-8.21 {ImageToArea procedure} {
    .c gettags [.c find overlapping 60 0 70 101]
} {image}
test canvImg-8.22 {ImageToArea procedure} {
    .c gettags [.c find overlapping 81 105 120 115]
} {}
test canvImg-8.23 {ImageToArea procedure} {
    .c gettags [.c find overlapping 80.001 105 120 115]
} {}
test canvImg-8.24 {ImageToArea procedure} {
    .c gettags [.c find overlapping 79 105 120 115]
} {image}
test canvImg-8.25 {ImageToArea procedure} {
    .c gettags [.c find overlapping 60 116 70 150]
} {}
test canvImg-8.26 {ImageToArea procedure} {
    .c gettags [.c find overlapping 60 115.001 70 150]
} {}
test canvImg-8.27 {ImageToArea procedure} {
    .c gettags [.c find overlapping 60 114 70 150]
} {image}
test canvImg-8.28 {ImageToArea procedure} {
    .c gettags [.c find overlapping 0 105 49 115]
} {}
test canvImg-8.29 {ImageToArea procedure} {
    .c gettags [.c find overlapping 0 105 50 114.999]
} {}
test canvImg-8.30 {ImageToArea procedure} {
    .c gettags [.c find overlapping 0 105 51 115]
} {image}
test canvImg-8.31 {ImageToArea procedure} {
    .c gettags [.c find overlapping 0 0 49.999 99.999]
} {}
test canvImg-8.32 {ImageToArea procedure} {
    .c gettags [.c find overlapping 0 0 51 101]
} {image}
test canvImg-8.33 {ImageToArea procedure} {
    .c gettags [.c find overlapping 80 0 150 100]
} {}
test canvImg-8.34 {ImageToArea procedure} {
    .c gettags [.c find overlapping 79 0 150 101]
} {image}
test canvImg-8.35 {ImageToArea procedure} {
    .c gettags [.c find overlapping 80.001 115.001 150 180]
} {}
test canvImg-8.36 {ImageToArea procedure} {
    .c gettags [.c find overlapping 79 114 150 180]
} {image}
test canvImg-8.37 {ImageToArea procedure} {
    .c gettags [.c find overlapping 0 115 50 180]
} {}
test canvImg-8.38 {ImageToArea procedure} {
    .c gettags [.c find overlapping 0 114 51 180]
} {image}
test canvImg-8.39 {ImageToArea procedure} {
    .c gettags [.c find enclosed 0 0 200 200]
} {image}
test canvImg-8.40 {ImageToArea procedure} {
    .c gettags [.c find enclosed 49.999 99.999 80.001 115.001]
} {image}
test canvImg-8.41 {ImageToArea procedure} {
    .c gettags [.c find enclosed 51 100 80 115]
} {}
test canvImg-8.42 {ImageToArea procedure} {
    .c gettags [.c find enclosed 50 101 80 115]
} {}
test canvImg-8.43 {ImageToArea procedure} {
    .c gettags [.c find enclosed 50 100 79 115]
} {}
test canvImg-8.44 {ImageToArea procedure} {
    .c gettags [.c find enclosed 50 100 80 114]
} {}

test canvImg-9.1 {DisplayImage procedure} {
    .c delete all
    .c create image 50 100 -image foo -tags image -anchor nw
    .c scale image 25 0 2.0 1.5
    .c bbox image
} {75 150 105 165}

test canvImg-10.1 {TranslateImage procedure} {
    .c delete all
    .c create image 50 100 -image foo -tags image -anchor nw
    update
    set x {}
    foo changed 2 4 6 8 30 15
    update
    set x
} {{foo display 2 4 6 8 30 30}}

test canvImg-11.1 {TranslateImage procedure} {
    .c delete all
    .c create image 50 100 -image foo -tags image -anchor nw
    update
    set x {}
    foo changed 2 4 6 8 40 50
    update
    set x
} {{foo display 0 0 40 50 30 30}}
test canvImg-11.2 {ImageChangedProc procedure} {
    .c delete all
    image create test foo -variable x
    .c create image 50 100 -image foo -tags image -anchor center
    update
    set x {}
    foo changed 0 0 0 0 40 50
    .c bbox image
} {30 75 70 125}
test canvImg-11.3 {ImageChangedProc procedure} {
    .c delete all
    image create test foo -variable x
    foo changed 0 0 0 0 40 50
    .c create image 50 100 -image foo -tags image -anchor nw
    .c create image 70 110 -image foo2 -anchor nw
    update
    set y {}
    image create test foo -variable x
    update
    set y
} {{foo2 display 0 0 20 40 50 40}}