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[/] [or1k/] [trunk/] [insight/] [gdb/] [gdbtcl/] [process.itb] - Rev 578
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# Process window for GDBtk.
# Copyright 1998, 1999 Cygnus Solutions
#
# This program is free software; you can redistribute it and/or modify it
# under the terms of the GNU General Public License (GPL) 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.
# ----------------------------------------------------------------------
# Implements a process window with a list of threads, tasks, and/or
# processes to debug.
#
# ----------------------------------------------------------------------
body ProcessWin::constructor {args} {
set top [winfo toplevel $itk_interior]
window_name "Processes"
gdbtk_busy
build_win
gdbtk_idle
# Add hooks for this object
add_hook gdb_no_inferior_hook [code $this idle]
}
# ------------------------------------------------------------------
# METHOD: build_win - build the main process window
# ------------------------------------------------------------------
body ProcessWin::build_win {} {
global tixOption tcl_platform
if {$tcl_platform(platform) == "windows"} {
tixScrolledListBox $itk_interior.s -scrollbar both -sizebox 1
} else {
tixScrolledListBox $itk_interior.s -scrollbar auto
}
set lb [$itk_interior.s subwidget listbox]
$lb configure -selectmode single -bg $tixOption(input1_bg) \
-selectbackground green \
-selectforeground black \
-font src-font \
-exportselection false
update dummy
balloon register $lb "Click on a line to change context"
# bind mouse button 1 to change the current context
bind $lb <ButtonPress-1> [code $this change_context %y]
bind $lb <ButtonRelease-1> break
pack $itk_interior.s -side left -expand yes -fill both
}
# ------------------------------------------------------------------
# METHOD: update - update widget when something changes
# ------------------------------------------------------------------
body ProcessWin::update {event} {
if {!$protect_me} {
$lb delete 0 end
if {[catch {gdb_cmd "info thread"} threads]} {
# failed. leave window blank
return
}
#debug "processWin update: \n$threads"
if {[llength $threads] == 0} {
# no processes/threads listed.
return
}
# insert each line one at a time
set active -1
set num_threads 0
foreach line [split $threads \n] {
# Active line starts with "*"
if {[string index $line 0] == "*"} {
# strip off leading "*"
set line " [string trimleft $line "*"]"
set active $num_threads
}
# scan for GDB ID number at start of line
if {[scan $line "%d" id($num_threads)] == 1} {
$lb insert end $line
incr num_threads
}
}
# highlight the active thread
if {$active >= 0} {
set active_thread $id($active)
$lb selection set $active
$lb see $active
}
}
}
# ------------------------------------------------------------------
# METHOD: change_context - change the current context (active thread)
# This method is currently ONLY called from the mouse binding
# ------------------------------------------------------------------
body ProcessWin::change_context {y} {
if {!$Running && [$lb size] != 0} {
gdbtk_busy
set linenum [$lb nearest $y]
set idnum $id($linenum)
#debug "change_context to line $linenum id=$idnum"
catch {gdb_cmd "thread $idnum"}
# Run idle hooks and cause all widgets to update
set protect_me 1
gdbtk_update
set protect_me 0
gdbtk_idle
}
}
# ------------------------------------------------------------------
# DESTRUCTOR - destroy window containing widget
# ------------------------------------------------------------------
body ProcessWin::destructor {} {
remove_hook gdb_no_inferior_hook [code $this no_inferior]
}
# ------------------------------------------------------------------
# METHOD: reconfig - used when preferences change
# ------------------------------------------------------------------
body ProcessWin::reconfig {} {
destroy $itk_interior.s
build_win
}
# ------------------------------------------------------------------
# METHOD: busy - BusyEvent handler
#
# This method should accomplish blocking
# - clicks in the window
# - change mouse pointer
# ------------------------------------------------------------------
body ProcessWin::busy {event} {
set Running 1
cursor watch
}
# ------------------------------------------------------------------
# METHOD: idle - handle IdleEvent
# ------------------------------------------------------------------
body ProcessWin::idle {event} {
set Running 0
cursor {}
}
# ------------------------------------------------------------------
# METHOD: cursor - set the window cursor
# This is a convenience method which simply sets the mouse
# pointer to the given glyph.
# ------------------------------------------------------------------
body ProcessWin::cursor {glyph} {
$top configure -cursor $glyph
}
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