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# Copyright (C) 2007 Tresys Technology, LLC
# 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., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
namespace eval Apol_Find {
variable dialog .apol_find_dialog
variable search_string {}
variable case_sensitive 0
variable enable_regexp 0
variable direction "down"
}
proc Apol_Find::find {} {
variable dialog
if {![winfo exists $dialog]} {
_create_dialog
} else {
raise $dialog
variable entry
focus $entry
$entry selection range 0 end
}
}
########## private functions below ##########
proc Apol_Find::_create_dialog {} {
variable dialog
Dialog $dialog -title "Find" -separator 0 -parent . \
-side right -default 0 -cancel 1 -modal none -homogeneous 1
set top_frame [frame [$dialog getframe].top]
set bottom_frame [frame [$dialog getframe].bottom]
pack $top_frame -expand 1 -fill both -padx 10 -pady 5
pack $bottom_frame -expand 0 -fill both -padx 10 -pady 5
set entry_label [label $top_frame.l -text "Find:" -anchor e]
variable entry [entry $top_frame.e -bg white \
-textvariable Apol_Find::search_string -width 16]
pack $entry_label -side left -expand 0 -padx 10
pack $entry -side left -expand 1 -fill x
set options_frame [frame $bottom_frame.opts]
pack $options_frame -side left -padx 5
set options_case [checkbutton $options_frame.case -text "Match case" \
-variable Apol_Find::case_sensitive]
set options_regex [checkbutton $options_frame.regex -text "Regular expression" \
-variable Apol_Find::enable_regexp]
pack $options_case -anchor w
pack $options_regex -anchor w
set dir_frame [TitleFrame $bottom_frame.dir -text Direction]
pack $dir_frame -side left
set dir_up [radiobutton [$dir_frame getframe].up -text Up \
-variable Apol_Find::direction -value up]
set dir_down [radiobutton [$dir_frame getframe].down -text Down \
-variable Apol_Find::direction -value down]
pack $dir_up $dir_down -side left
$dialog add -text "Find Next" -command Apol_Find::_do_find
$dialog add -text "Cancel" -command [list destroy $dialog]
focus $entry
$dialog draw
wm resizable $dialog 0 0
}
proc Apol_Find::_do_find {} {
set w [ApolTop::getCurrentTextWidget]
if {$w == {}} {
return
}
variable search_string
variable case_sensitive
variable enable_regexp
variable direction
if {$search_string == {}} {
return
}
set opts {}
if {!$case_sensitive} {
lappend opts "-nocase"
}
if {$enable_regexp} {
lappend opts "-regexp"
}
if {$direction == "down"} {
lappend opts "-forward"
set start_pos [$w index insert]
} else {
lappend opts "-backward"
set start_pos [lindex [$w tag ranges sel] 0]
}
if {$start_pos == {}} {
set start_pos "1.0"
}
$w tag remove sel 0.0 end
variable dialog
if {[catch {eval $w search -count count $opts -- [list $search_string] $start_pos} pos]} {
tk_messageBox -parent $dialog -icon warning -type ok -title "Find" -message \
"Invalid regular expression."
return
}
if {$pos == {}} {
tk_messageBox -parent $dialog -icon warning -type ok -title "Find" -message \
"String not found."
} else {
if {$direction == "down"} {
$w mark set insert "$pos + $count char"
$w see "$pos + $count char"
} else {
$w mark set insert "$pos"
$w see $pos
}
$w tag add sel $pos "$pos + $count char"
}
}
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