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#==========================================================================
#
# Copyright Insight Software Consortium
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0.txt
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
#
#==========================================================================*/
# Define ITK Tcl utilities.
namespace eval itk {
# Allow code like "$obj Print [itk::result]
proc result {} {
return [itk::TclStringStream [cable::Interpreter]]
}
# Create an object of the given type. Return a pointer to it. A
# smart pointer to the object is kept in a list that is destroyed at
# program exit.
proc create {type} {
global itk::_ObjectList_
set ptr [itk::$type New]
set p [$ptr ->]
lappend _ObjectList_ $ptr
return $p
}
# Start with an empty object list.
set _ObjectList_ {}
# Create an image viewer in a given frame.
proc createImageViewer2D {frame image args} {
# Create the canvas.
eval canvas $frame.canvas {-scrollregion "1 1 32 32"} \
{-xscrollcommand "$frame.scrollx set"} \
{-yscrollcommand "$frame.scrolly set"} $args
scrollbar $frame.scrollx -orient horizontal \
-command "$frame.canvas xview"
scrollbar $frame.scrolly -orient vertical \
-command "$frame.canvas yview"
pack $frame.scrollx -side bottom -fill x
pack $frame.scrolly -side right -fill y
pack $frame.canvas -expand 1 -fill both
# Create a Tk image on the canvas.
set i [image create photo]
$frame.canvas create image 0 0 -image $i -anchor nw
# Setup the TkImageViewer2D instance.
set viewer [itk::create TkImageViewer2D]
$viewer SetInput $image
$viewer SetInterpreter [cable::Interpreter]
$viewer SetImageName $i
$viewer SetCanvasName $frame.canvas
return $viewer
}
# Create a Tcl callback event.
proc createTclCommand { cmd } {
set command [itk::create TclCommand]
$command SetInterpreter [cable::Interpreter]
$command SetCommandString $cmd
return $command
}
# Tcl procedure to list the wrapped classes.
proc listClasses {} {
set cmds {}
foreach c [info commands ::itk::*] {
if { ! [regexp {(<)|(_Pointer$)|(_Superclass$)|(^::itk::[^A-Z])} $c] } {
lappend cmds $c
}
}
set cmds [lsort $cmds]
foreach c $cmds {
puts $c
}
}
proc listMethods {obj} {
cable::ListMethods $obj
}
namespace export create result createImageViewer2D
}
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