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#!/usr/bin/tclsh
# Part of MCU 8051 IDE ( http://https://sourceforge.net/projects/mcu8051ide/ )
############################################################################
# Copyright (C) 2007, 2008, 2009, 2010, 2011, 2012 by Martin OŔmera #
# martin.osmera@gmail.com #
# #
# Copyright (C) 2014 by Moravia Microsystems, s.r.o. #
# martin.osmera@gmail.com #
# #
# 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. #
############################################################################
# >>> File inclusion guard
if { ! [ info exists _HEXEDITOR_TCL ] } {
set _HEXEDITOR_TCL _
# <<< File inclusion guard
# --------------------------------------------------------------------------
# DESCRIPTION
# This class provides simple hex editor with selectable view mode
# and optional ascii view. See constructor and section
# "GENERAL PUBLIC INTERFACE" for more details.
# --------------------------------------------------------------------------
class HexEditor {
# Font for editor text widget(s) - normal size
if {!$::MICROSOFT_WINDOWS} {
public common view_font_n [font create \
-family $::DEFAULT_FIXED_FONT \
-size [expr {int(-15 * $::font_size_factor)}] \
]
} else {
public common view_font_n [font create \
-family $::DEFAULT_FIXED_FONT \
-size [expr {int(-15 * $::font_size_factor)}] \
-weight bold \
]
}
# Font for editor headers - normal size
public common header_font_n [font create \
-family $::DEFAULT_FIXED_FONT \
-size [expr {int(-15 * $::font_size_factor)}] \
-weight bold \
]
# Font for editor headers - small size
public common header_font_s [font create \
-family $::DEFAULT_FIXED_FONT \
-size [expr {int(-12 * $::font_size_factor)}] \
-weight bold \
]
public common view_font_s $header_font_s ;# Font for editor text widget(s) - small size
public common header_bg {#9999FF} ;# Background color for headers
public common header_fg {#FFFFFF} ;# Foreground color for headers
public common n_row_bg {#DDDDDD} ;# Background color for Nth rows
public common highlight_fg {#FFAA00} ;# Foreground color for chaged values
public common highlight_bg {#888888} ;# Background color for background highlight (variant 0)
public common highlight_bg1 {#FFDD33} ;# Background color for background highlight (variant 1)
public common highlight_bg2 {#FFAA00} ;# Background color for background highlight (variant 2)
public common unprintable_fg {#FF0000} ;# Foreground color for unprintable characters in ascii view
public common current_full_bg {#00FF00} ;# Background color for cursor in active view
public common current_half_bg {#AAFFAA} ;# Background color for cursor in inactive view
## Variables related to find dialog
public common find_dialog_win {} ;# Widget: Find dialog
public common find_dialog_count 0 ;# Int: Counter find dialog opens
public common text_to_find {} ;# String: Text/Value to find
public common where_to_search left ;# String: Where to search (left or right view)
## Array: Find options
# fc - Bool: Find option "From cursor"
# bw - Bool: Find option "Backwards"
public common find_opt
private variable left_top_button ;# ID of button in left top corner (select all)
private variable left_address_bar ;# ID of left address bar
private variable left_header ;# ID of left header (horizontal address bar)
private variable right_header ;# ID of right header (horizontal address bar)
private variable left_view ;# ID of text of left view
private variable right_view ;# ID of text of right view
private variable scrollbar ;# ID of vertical crollbar
private variable main_frame ;# ID of main frame (frame for all these widgets)
private variable view_font ;# Current font for left (and right) view
private variable header_font ;# Current font for headers
private variable highlighted_cells ;# Array of Bool: highlighted cells
private variable bg_hg ;# Array of Bool: cells with background highlight (variant 0)
private variable bg_hg1 ;# Array of Bool: cells with background highlight (variant 1)
private variable bg_hg2 ;# Array of Bool: cells with background highlight (variant 2)
private variable current_cell_changed_cmd {} ;# Command to call on event "CurrentCellChanged"
private variable cell_value_changed_cmd {} ;# Command to call on event "CellValueChanged"
private variable cell_enter_cmd {} ;# Command to call on event "CellMouseEnter"
private variable cell_leave_cmd {} ;# Command to call on event "CellMouseLeave"
private variable cell_motion_cmd {} ;# Command to call on event "CellMouseMotion"
private variable scroll_action_cmd {} ;# Command to call on event "Scroll"
private variable selection_action_cmd {}
private variable current_cell_changed_cmd_set 0 ;# Bool: current_cell_changed_cmd not empty
private variable cell_value_changed_cmd_set 0 ;# Bool: cell_value_changed_cmd not empty
private variable cell_enter_cmd_set 0 ;# Bool: cell_enter_cmd not empty
private variable cell_leave_cmd_set 0 ;# Bool: cell_leave_cmd not empty
private variable cell_motion_cmd_set 0 ;# Bool: cell_motion_cmd not empty
private variable scroll_action_cmd_set 0 ;# Bool: scroll_action_cmd not empty
private variable selection_action_cmd_set 0
private variable cell_under_cursor {0.0} ;# Text index of cell under mouse pointer
private variable in_cell 0 ;# Bool: mouse pointer in cell (see code below)
private variable motion_binding 0 ;# Bool: Bindings for special mouse events set
private variable view_mode ;# Current view mode (one of {dec hec oct bin})
private variable ascii_view ;# Bool: Ascii view available
private variable address_length ;# Int: Length of addresses on left address bar
private variable physical_height ;# Int: Height of view in rows
private variable width ;# Int: Number of cells in left view in one row
private variable height ;# Int: Number of rows in left view
private variable total_capacity ;# Int: Total editor capacity in bytes
private variable left_view_width ;# Int: Number of charcers in left view on one row
private variable value_length ;# Int: Number of characters in one cell
private variable cur_idx 0.0 ;# TextIndex: Last text index before selection
private variable selected_view {} ;# ID of active view
private variable popup_menu ;# ID of popup menu for both views
private variable selection_sync_in_P 0 ;# Bool: View selection synchronization in progress
private variable scroll_in_progress 0 ;# Bool: Scrolling procedure in progress
private variable cursor_address 0 ;# Int: Address of the current cell
private variable top_row 1 ;# Int: Number of topmost visible row
private variable disabled 0 ;# Bool: Editor disabled
private variable last_find_index {} ;# String: Index of first matched characted (find dialog)
private variable scrollbar_visible 0 ;# Bool: Scrollbar visibility flag
## Costructor
# @parm WidgetPath mainframe - Path where to create editor main frame
# @parm Int Width - Number of columns in row (max. 16)
# @parm Int Height - Number rows
# @parm Int addresslength - Number of characters on one row in left address bar
# @parm String mode - Initial view mode (one of {hex dec bin oct})
# @parm Bool ascii - Display also ascii view
# @parm Bool small - Use small fonts
# @parm Int physicalheight - Heigh of views in rows
# @parm Int totalcapacity - Total capacity in Bytes
constructor {mainframe Width Height addresslength mode ascii small physicalheight totalcapacity} {
# Set object variables
set view_mode $mode
set ascii_view $ascii
set physical_height $physicalheight
set address_length $addresslength
set width $Width
set height $Height
set total_capacity $totalcapacity
# Initalize array of highlighted cells
for {set i 0} {$i < $total_capacity} {incr i} {
set highlighted_cells($i) 0
set bg_hg($i) 0
set bg_hg1($i) 0
set bg_hg2($i) 0
}
# Validate inputs arguments
if {$width > 16} {
error "Width cannot be grater than 16"
}
if {![string is boolean $small]} {
error "Invalid value for argument small: $small"
}
# Determinate fonts
if {$small} {
set view_font $view_font_s
set header_font $header_font_s
} else {
set view_font $view_font_n
set header_font $header_font_n
}
# Create main frame
set main_frame [frame $mainframe]
bind $main_frame <Destroy> "catch {::itcl::delete object $this}"
# Create GUI components
create_gui ;# Create text widgets
create_popup_menu ;# Create popup menu
create_tags ;# Create text tags
create_bindings ;# Create bindings
fill_headers ;# Fill headers with appropriate addresses
fill_views ;# Fill views with spaces
# Finalize GUI initialization
$left_view mark set insert 1.0
set_selected_view {left}
}
## Object destructor
destructor {
catch {
destroy $main_frame
}
# Remove find dialog window if exists
if {[winfo exists $find_dialog_win]} {
destroy $find_dialog_win
}
}
## Create popup menu (for left & right view)
# @return void
private method create_popup_menu {} {
set popup_menu $main_frame.popup_menu
menuFactory {
{command {Copy} {Ctrl+C} 0
"text_copy" {editcopy} {}}
{command {Paste} {Ctrl+V} 0
"text_paste" {editpaste} {}}
{separator}
{command {Select all} {Ctrl+A} 0
"text_selall" {} {}}
{separator}
{command {Find} {Ctrl+F} 0
"find_dialog" {find} {}}
{command {Find next} {F3} 5
"find_next" {1downarrow} {}}
{command {Find previous} {Shift+F3} 8
"find_prev" {1uparrow} {}}
{separator}
{command {Fill with pseudo-random values} {} 0
"text_random" {} {}}
} $popup_menu 0 "$this " 0 {} [namespace current]
# Configure menu entries
$popup_menu entryconfigure [::mc "Find next"] -state disabled
$popup_menu entryconfigure [::mc "Find previous"] -state disabled
}
## Create all hex editor widgets expect popup menu
# @return void
private method create_gui {} {
# Determinate width of left view text widget and cell width
switch -- $view_mode {
{hex} {
set left_view_width [expr {$width * 3 - 1}]
set value_length 2
}
{oct} {
set left_view_width [expr {$width * 4 - 1}]
set value_length 3
}
{dec} {
set left_view_width [expr {$width * 4 - 1}]
set value_length 3
}
default {
error "Invalid mode: $view_mode"
}
}
# Create button "Select All" in left top corner
if {!$::MICROSOFT_WINDOWS} {
set left_top_button [button $main_frame.left_top_button \
-bg $header_bg -bd 0 -padx 0 -pady 0 \
-activebackground white -relief flat \
-highlightthickness 0 \
-command "$main_frame.left_view tag add sel 1.0 end" \
]
DynamicHelp::add $main_frame.left_top_button -text [mc "Select all"]
grid $left_top_button -row 0 -column 0 -sticky nsew
}
# Create left address bar
set left_address_bar [text $main_frame.left_address_bar \
-height $physical_height -width $address_length \
-font $header_font -bg $header_bg \
-relief flat -bd 1 -fg $header_fg \
-highlightthickness 0 -takefocus 0 \
-yscrollcommand "$this scrollSet" \
-cursor left_ptr \
]
grid $left_address_bar -row 1 -column 0 -sticky ns
# Create horizontal header for left view
set left_header [text $main_frame.left_header \
-height 1 -width $left_view_width \
-font $header_font -bg $header_bg \
-relief flat -bd 1 -fg $header_fg \
-highlightthickness 0 -takefocus 0 \
-cursor left_ptr \
]
grid $left_header -row 0 -column 1
# Create horizontal header for ascii view
if {$ascii_view} {
grid [ttk::separator $main_frame.sep \
-orient horizontal \
] -row 0 -rowspan 2 -column 2 -sticky ns
set right_header [text $main_frame.right_header \
-height 1 -width $width -bg $header_bg \
-font $header_font -relief flat -bd 1 \
-fg $header_fg -highlightthickness 0 \
-takefocus 0 \
-cursor left_ptr \
]
grid $right_header -row 0 -column 3
}
# Create text widget of the left view
set left_view [text $main_frame.left_view \
-font $header_font -relief flat -bd 1 \
-width $left_view_width -bg white \
-highlightthickness 0 -height $physical_height \
-yscrollcommand "$this scrollSet" \
]
grid $left_view -row 1 -column 1 -sticky ns
# Create text widget for ascii view
if {$ascii_view} {
set right_view [text $main_frame.right_view \
-font $header_font -relief flat -bd 1 \
-width $width -bg white \
-highlightthickness 0 -height $physical_height \
-exportselection 0 -insertwidth 0 \
-yscrollcommand "$this scrollSet" \
]
grid $right_view -row 1 -column 3 -sticky ns
}
# Create vertical scrollbar
set scrollbar [ttk::scrollbar $main_frame.scrollbar \
-orient vertical \
-command "$this scroll" \
]
set scrollbar_visible 0
showHideScrollbar 1
grid rowconfigure $main_frame 1 -weight 1
}
## Create event bindings for all hex editor widgets (except popup menu)
# @return void
private method create_bindings {} {
## LEFT PART
bindtags $left_header $left_header
bindtags $left_address_bar $left_address_bar
bindtags $left_view [list $left_view . all]
foreach key {Left Right Up Down Home End Prior Next} {
bind $left_view <Key-$key> "$this left_view_movement 0 {$key}; break"
bind $left_view <Shift-Key-$key> "$this left_view_movement 1 {$key}; break"
}
for {set i 1} {$i < 21} {incr i} {
bind $left_view <Key-F$i> {continue}
}
bind $left_view <Control-Key> {continue}
bind $left_view <Alt-Key> {continue}
bind $left_view <Key-BackSpace> "$this left_view_movement 0 Left; break"
bind $left_view <Key-Menu> "$this popup_menu left %x %y %X %Y; break"
bind $left_view <ButtonRelease-3> "$this popup_menu left %x %y %X %Y; break"
bind $left_view <Key-Tab> "$this switch_views; break"
if {!$::MICROSOFT_WINDOWS} {
bind $left_view <Key-ISO_Left_Tab> "$this switch_views; break"
}
bind $left_view <KeyPress> "$this left_view_key %A; break"
bind $left_view <Button-1> "$this left_view_B1 %x %y; break"
bind $left_view <<Paste>> "$this text_paste; break"
bind $left_view <Control-Key-a> "$left_view tag add sel 1.0 end"
bind $left_view <<Selection>> "$this left_view_selection; break"
bind $left_view <FocusIn> "$this set_selected_view left"
bind $left_view <Key-Escape> {catch {%W tag remove sel 0.0 end}; break}
bind $left_view <Control-Key-f> "$this find_dialog; break"
bind $left_view <Control-Key-F> "$this find_dialog; break"
bind $left_view <F3> "$this find_next; break"
if {!$::MICROSOFT_WINDOWS} {
bind $left_view <XF86_Switch_VT_3> "$this find_prev; break"
}
bind $left_view <B1-Motion> "
$this left_view_B1_Motion %x %y
$this text_view_leave
break"
foreach key {
<ButtonRelease-1> <B1-Enter> <B1-Leave>
<B2-Motion> <Button-5> <Button-4>
<MouseWheel> <<Copy>> <Double-Button-1>
} {
bind $left_view $key "[bind Text $key]; break"
}
bind $left_view <Double-Button-1> {break}
bind $left_view <Triple-Button-1> {break}
bind $left_view <Button-4> "$this scroll scroll -3 units"
bind $left_view <Button-5> "$this scroll scroll +3 units"
bind $left_address_bar <Button-4> "$this scroll scroll -3 units"
bind $left_address_bar <Button-5> "$this scroll scroll +3 units"
bind $left_address_bar <MouseWheel> "[bind Text <MouseWheel>]; break"
## RIGHT PART
if {$ascii_view} {
bindtags $right_view [list $right_view . all]
bindtags $right_header $right_header
foreach key {<Copy> Double-Button-1} {
bind $right_view <$key> {continue}
}
for {set i 1} {$i < 21} {incr i} {
bind $right_view <Key-F$i> {continue}
}
foreach event {
Key-Prior Key-Next Shift-Key-Up Shift-Key-Down
Shift-Key-Home Key-Home Shift-Key-Prior Shift-Key-Next
Button-1 Key-Up Key-Down
Shift-Key-Left Shift-Key-Right Shift-Key-End
} {
bind $right_view <$event> "
[bind Text <$event>]
$this right_view_adjust_cursor
break"
}
bind $right_view <Key-Left> "$this right_view_movement Left"
bind $right_view <Key-Right> "$this right_view_movement Right"
bind $right_view <Key-End> "$this right_view_movement End"
bind $right_view <B1-Motion> "
[bind Text <B1-Motion>]
$this right_view_adjust_cursor
$this text_view_leave
break"
bind $right_view <Key-BackSpace> "
[bind Text <Key-Left>]
$this right_view_adjust_cursor
break"
bind $right_view <Key-Menu> "$this popup_menu right %x %y %X %Y; break"
bind $right_view <ButtonRelease-3> "$this popup_menu right %x %y %X %Y; break"
bind $right_view <Key-Tab> "$this switch_views; break"
if {!$::MICROSOFT_WINDOWS} {
bind $right_view <Key-ISO_Left_Tab> "$this switch_views; break"
}
bind $right_view <KeyPress> "$this right_view_key %A; break"
bind $right_view <<Paste>> "$this text_paste; break"
bind $right_view <Control-Key-a> "$right_view tag add sel 1.0 end"
bind $right_view <<Selection>> "$this right_view_selection; break"
bind $right_view <FocusIn> "$this set_selected_view right"
bind $right_view <Key-Escape> {catch {%W tag remove sel 0.0 end}; break}
bind $right_view <Control-Key-f> "$this find_dialog; break"
bind $right_view <Control-Key-F> "$this find_dialog; break"
bind $right_view <F3> "$this find_next; break"
if {!$::MICROSOFT_WINDOWS} {
bind $right_view <XF86_Switch_VT_3> "$this find_prev; break"
}
foreach key {
<ButtonRelease-1> <B1-Enter> <B1-Leave>
<MouseWheel> <<Copy>> <Double-Button-1>
<B2-Motion>
} {
bind $right_view $key "[bind Text $key]; break"
}
bind $right_view <Double-Button-1> {break}
bind $right_view <Triple-Button-1> {break}
bind $right_view <Button-4> "$this scroll scroll -3 units"
bind $right_view <Button-5> "$this scroll scroll +3 units"
}
}
## Create text tags
# @return void
private method create_tags {} {
#
## LEFT PART
#
# Cursor position
$left_address_bar tag configure tag_current_full \
-font $header_font \
-background $current_full_bg \
-foreground {#000000}
# Cursor position for active view and inactive view
foreach widget [list $left_header $left_view] \
font [list $header_font $view_font] \
{
$widget tag configure tag_current_full \
-font $font \
-background $current_full_bg \
-foreground {#000000}
$widget tag configure tag_current_half \
-font $font \
-background $current_half_bg \
-foreground {#000000}
}
# Nth row backrgound
$left_view tag configure tag_n_row \
-background $n_row_bg \
-font $view_font
# Cell highlight
$left_view tag configure tag_hg \
-foreground $highlight_fg \
-font $view_font
$left_view tag configure tag_bg_hg \
-background $highlight_bg \
-font $view_font
$left_view tag configure tag_bg_hg1 \
-background $highlight_bg1 \
-font $view_font
$left_view tag configure tag_bg_hg2 \
-background $highlight_bg2 \
-font $view_font
# Other tags
$left_view tag configure normal_font \
-font $view_font
# Set tags priorities
$left_view tag raise sel tag_n_row
$left_view tag raise sel tag_current_full
$left_view tag raise sel tag_current_half
$left_view tag raise sel tag_bg_hg
$left_view tag raise sel tag_bg_hg1
$left_view tag raise sel tag_bg_hg2
$left_view tag raise tag_current_full normal_font
$left_view tag raise tag_current_half normal_font
$left_view tag raise tag_bg_hg normal_font
$left_view tag raise tag_bg_hg1 normal_font
$left_view tag raise tag_bg_hg2 normal_font
$left_view tag raise tag_bg_hg2 tag_bg_hg1
$left_view tag raise tag_bg_hg tag_n_row
$left_view tag raise tag_bg_hg1 tag_n_row
$left_view tag raise tag_bg_hg2 tag_n_row
$left_view tag raise tag_current_full tag_n_row
$left_view tag raise tag_current_half tag_n_row
$left_view tag raise tag_current_full tag_bg_hg
$left_view tag raise tag_current_half tag_bg_hg
$left_view tag raise tag_current_full tag_bg_hg1
$left_view tag raise tag_current_half tag_bg_hg1
$left_view tag raise tag_current_full tag_bg_hg2
$left_view tag raise tag_current_half tag_bg_hg2
#
## RIGHT PART
#
if {$ascii_view} {
# Unprintable characters
$right_view tag configure tag_np \
-font $view_font \
-foreground $unprintable_fg
# Cursor position for active view
$right_header tag configure tag_current_full \
-font $header_font \
-background $current_full_bg \
-foreground {#000000}
# Cursor position for inactive view
$right_header tag configure tag_current_half \
-font $header_font \
-background $current_half_bg \
-foreground {#000000}
# Cursor position for active view
$right_view tag configure tag_current_full \
-font $view_font \
-background $current_full_bg
# Cursor position for inactive view
$right_view tag configure tag_current_half \
-font $view_font \
-background $current_half_bg
# Nth row backrgound
$right_view tag configure tag_n_row \
-background $n_row_bg \
-font $view_font
# Cell highlight
$right_view tag configure tag_hg \
-foreground $highlight_fg \
-font $view_font
$right_view tag configure tag_bg_hg \
-background $highlight_bg \
-font $view_font
$right_view tag configure tag_bg_hg1 \
-background $highlight_bg1 \
-font $view_font
$right_view tag configure tag_bg_hg2 \
-background $highlight_bg2 \
-font $view_font
# Other tags
$right_view tag configure normal_font \
-font $view_font
# Set tags priorities
$right_view tag raise sel tag_current_full
$right_view tag raise sel tag_current_half
$right_view tag raise sel tag_n_row
$right_view tag raise sel tag_bg_hg
$right_view tag raise sel tag_bg_hg1
$right_view tag raise sel tag_bg_hg2
$right_view tag raise tag_current_full normal_font
$right_view tag raise tag_current_half normal_font
$right_view tag raise tag_bg_hg normal_font
$right_view tag raise tag_bg_hg1 normal_font
$right_view tag raise tag_bg_hg2 normal_font
$right_view tag raise tag_bg_hg2 tag_bg_hg1
$right_view tag raise tag_bg_hg tag_n_row
$right_view tag raise tag_bg_hg1 tag_n_row
$right_view tag raise tag_bg_hg2 tag_n_row
$right_view tag raise tag_current_full tag_n_row
$right_view tag raise tag_current_half tag_n_row
$right_view tag raise tag_current_full tag_bg_hg
$right_view tag raise tag_current_half tag_bg_hg
$right_view tag raise tag_current_full tag_bg_hg1
$right_view tag raise tag_current_half tag_bg_hg1
$right_view tag raise tag_current_full tag_bg_hg2
$right_view tag raise tag_current_half tag_bg_hg2
}
}
## Restore cell highlight
# @parm Int address - Cell address
# @return void
private method restore_cell_highlight {address} {
if {$highlighted_cells($address)} {
set highlighted_cells($address) 0
setHighlighted $address 1
}
if {$bg_hg($address)} {
set bg_hg($address) 0
set_bg_hg $address 1 0
}
if {$bg_hg1($address)} {
set bg_hg1($address) 0
set_bg_hg $address 1 1
}
if {$bg_hg2($address)} {
set bg_hg2($address) 0
set_bg_hg $address 1 2
}
}
## Fill headres with addresses
# @return void
private method fill_headers {} {
# Left horizontal header
fill_left_header
# Left address bar
$left_address_bar delete 1.0 end
$left_address_bar insert end [string repeat {0} $address_length]
set line {}
set address {}
for {set i 1} {$i < $height} {incr i} {
set address [format {%X} [expr {$i * $width}]]
set line "\n"
append line [string repeat {0} \
[expr {$address_length - [string length $address]}]]
append line $address
$left_address_bar insert end $line
}
# Right horizontal header
set header_values [list 0 1 2 3 4 5 6 7 8 9 A B C D E F]
if {$ascii_view} {
$right_header delete 1.0 end
for {set i 0} {$i < $width} {incr i} {
$right_header insert end [lindex $header_values $i]
}
}
}
## Left horizontal header with cell addresses
# @return void
private method fill_left_header {} {
set header_values [list 0 1 2 3 4 5 6 7 8 9 A B C D E F]
$left_header delete 1.0 end
if {$view_mode == {hex}} {
set space { }
} else {
$left_header insert end { }
set space { }
}
for {set i 0} {$i < $width} {incr i} {
if {$i} {
$left_header insert end $space
}
$left_header insert end {x}
$left_header insert end [lindex $header_values $i]
}
}
## Fill all views with spaces
# @return void
public method fill_views {} {
# Fill left view with spaces
$left_view delete 1.0 end
set line [string repeat { } $left_view_width]
$left_view insert end $line
$left_view tag add normal_font {insert linestart} {insert lineend}
for {set i 1} {$i < $height} {incr i} {
$left_view insert end "\n"
$left_view tag add normal_font {insert linestart} {insert lineend}
$left_view insert end $line
if {![expr {$i % 3}]} {
$left_view tag add tag_n_row \
[expr {$i - 1}].$left_view_width \
[expr {$i + 1}].0
}
}
# Fill right view with spaces
if {$ascii_view} {
$right_view delete 1.0 end
set line [string repeat { } $width]
$right_view insert end $line
$right_view tag add normal_font {insert linestart} {insert lineend}
for {set i 1} {$i < $height} {incr i} {
$right_view insert end "\n"
$right_view tag add normal_font {insert linestart} {insert lineend}
$right_view insert end $line
if {![expr {$i % 3}]} {
$right_view tag add tag_n_row \
[expr {$i - 1}].$left_view_width \
[expr {$i + 1}].0
}
}
}
}
## Translate cell address to text indexes
# @parm Int address - address to translate
# @return List {row column_in_right_view start_col_in_left_view end_col_in_left_view}
private method address_to_index {address} {
# Local variable
set row [expr {$address / $width + 1}] ;# Row
set cell [expr {$address % $width}] ;# Column in right view
set start_col 0 ;# Start column in left view
# Determinate start column
if {$cell} {
if {$view_mode != {hex}} {
set start_col [expr {$cell * 4}]
} else {
set start_col [expr {$cell * 3}]
}
}
# Determinate end column
set end_col $start_col
if {$view_mode != {hex}} {
incr end_col 3
} else {
incr end_col 2
}
# Return results
return [list $row $cell $start_col $end_col]
}
## Translate text index to address
# @parm String view - View from which is index to translate
# @parm TextIndex index - Indext to translate
# @return Int address
private method index_to_address {view index} {
# Left view
if {$view == {left}} {
if {$view_mode != {hex}} {
set step 4
} else {
set step 3
}
scan [$left_view index $index] {%d.%d} row col
set cell [expr {($col / $step)}]
# Right view
} else {
scan [$right_view index $index] {%d.%d} row cell
}
# Return result
incr row -1
return [expr {$row * $width + $cell}]
}
## Normalize column in left view
# @parm Int col - column to normalize
# @return {start_column end_column cell_number_in_row}
private method col_to_start_end {col} {
if {$view_mode != {hex}} {
set step 4
} else {
set step 3
}
set cell [expr {($col / $step)}]
set start [expr {$cell * $step}]
set end [expr {$start + $step - 1}]
return [list $start $end $cell]
}
## Adjust cursor tags to the current cursor positions (for left view)
# @return void
private method left_view_adjust_cursor {} {
scan [$left_view index insert] {%d.%d} row col
set boundaries [col_to_start_end $col]
set col_s [lindex $boundaries 0]
set col_e [lindex $boundaries 1]
set cell [lindex $boundaries 2]
set cursor_address_original $cursor_address
set cursor_address [expr {($row - 1) * $width + $cell}]
if {$cursor_address >= $total_capacity} {
set cursor_address $cursor_address_original
setCurrentCell $cursor_address_original
return
}
# Clear cell highlight
if {$highlighted_cells($cursor_address)} {
setHighlighted $cursor_address 0
}
# Execute command binded to event CurrentCellChanged
if {$current_cell_changed_cmd_set && $cursor_address_original != $cursor_address} {
eval "$current_cell_changed_cmd $cursor_address"
}
## Create cursor tags in right view
if {$ascii_view} {
$right_header tag remove tag_current_half 0.0 end
$right_header tag add tag_current_half 1.$cell 1.$cell+1c
$right_view tag remove tag_current_half 0.0 end
$right_view tag add tag_current_half $row.$cell "$row.$cell +1c"
}
## Create cursor tags in left view
$left_address_bar tag remove tag_current_full 0.0 end
$left_address_bar tag add tag_current_full $row.0 $row.0+1l
$left_header tag remove tag_current_full 0.0 end
$left_header tag add tag_current_full 1.$col_s 1.$col_e
$left_view tag remove tag_current_full 0.0 end
$left_view tag add tag_current_full $row.$col_s $row.$col_e
}
## Create binding for <Motion> and <Leave> events for left and right view
# @return void
private method bind_mouse_motions {} {
if {$motion_binding} {return}
set motion_binding 1
bind $left_view <Motion> "$this left_view_motion %x %y %X %Y"
bind $left_view <Leave> "$this text_view_leave"
if {$ascii_view} {
bind $right_view <Motion> "$this right_view_motion %x %y %X %Y"
bind $right_view <Leave> "$this text_view_leave"
}
}
## Binding for event <ButtonPress-1> in left view
# @parm Int x - Relative horizontal position of mouse pointer
# @parm Int y - Relative vertical position of mouse pointer
# @return void
private method left_view_move_insert {x y} {
set index [$left_view index @$x,$y]
scan $index {%d.%d} row col
if {$view_mode != {hex}} {
if {($col % 4) == 3} {
set index [$left_view index "$index+1c"]
}
} else {
if {($col % 3) == 2} {
set index [$left_view index "$index+1c"]
}
}
$left_view mark set insert $index
left_view_adjust_cursor
}
## Adjust cursor tags to the current cursor positions (for right view)
# @return void
public method right_view_adjust_cursor {} {
if {!$ascii_view} {
return
}
scan [$right_view index insert] {%d.%d} row cell
if {$view_mode != {hex}} {
set step 4
} else {
set step 3
}
set cursor_address_original $cursor_address
set cursor_address [expr {($row - 1) * $width + $cell}]
if {$cursor_address >= $total_capacity} {
set cursor_address [expr {$total_capacity - 1}]
set index [address_to_index $cursor_address]
set row [lindex $index 0]
set cell [lindex $index 1]
$right_view mark set insert $row.$cell
}
set col_s [expr {$cell * $step}]
set col_e [expr {$col_s + $step - 1}]
# Clear cell highlight
if {$highlighted_cells($cursor_address)} {
setHighlighted $cursor_address 0
}
# Execute command binded to event CurrentCellChanged
if {$current_cell_changed_cmd_set && $cursor_address_original != $cursor_address} {
eval "$current_cell_changed_cmd $cursor_address"
}
## Adjust cursor tags in right view
$right_header tag remove tag_current_full 0.0 end
$right_header tag add tag_current_full 1.$cell 1.$cell+1c
$right_view tag remove tag_current_full 0.0 end
$right_view tag add tag_current_full $row.$cell "$row.$cell +1c"
## Adjust cursor tags in left view
$left_address_bar tag remove tag_current_full 0.0 end
$left_address_bar tag add tag_current_full $row.0 $row.0+1l
$left_header tag remove tag_current_half 0.0 end
$left_header tag add tag_current_half 1.$col_s 1.$col_e
$left_view tag remove tag_current_half 0.0 end
$left_view tag add tag_current_half $row.$col_s $row.$col_e
}
## Binding for event <KeyPress> in right view
# @parm String key - binary key code
# @return void
public method right_view_key {key} {
if {$disabled} {return}
if {!$ascii_view} {
return
}
# Key must be 8 bit printable character
if {![string is print -strict $key] || ([string bytelength $key] > 1)} {
return
}
# Determinate row, column and index of insertion cursor
set index [$right_view index insert]
scan $index {%d.%d} row col
# Check for valid position (insert mustn't be after the end of editor)
if {($row == $height) && ($col >= $width)} {
return
}
# Convert value to decimal and check for valid ASCII value
binary scan $key c key
if {$key > 126 || $key < 0} {
return
}
# Synchronize views
incr row -1
set address [expr {$row * $width + $col}]
setValue $address $key
if {$cell_value_changed_cmd_set} {
eval "$cell_value_changed_cmd $address $key"
}
}
## Fill the selected are with random values
# @return void
public method text_random {} {
#
if {$selected_view == {left}} {
set view_widget $left_view
} elseif {$ascii_view && $selected_view == {right}} {
set view_widget $right_view
} else {
return
}
#
if {![llength [$view_widget tag nextrange sel 0.0]]} {
return
}
#
set start_address [index_to_address $selected_view [$view_widget index sel.first]]
set end_address [index_to_address $selected_view [$view_widget index sel.last]]
#
for {set i $start_address} {$i <= $end_address} {incr i} {
if {$i >= $total_capacity} {
break
}
set value [expr {int(256 * rand()) & 0x0ff}]
setValue $i $value
if {$cell_value_changed_cmd_set} {
eval "$cell_value_changed_cmd $i $value"
}
}
}
## Synchronize selection in right view with left view
# Binding for event <<Selection>>
# @return void
public method right_view_selection {} {
if {$selection_sync_in_P} {return}
set selection_sync_in_P 1
$left_view tag remove sel 0.0 end
if {![llength [$right_view tag nextrange sel 0.0]]} {
set selection_sync_in_P 0
set anything_selected 0
} else {
set anything_selected 1
}
if {$selection_action_cmd_set} {
set flag $anything_selected
if {$flag} {
if {![string length [string trim [$right_view get sel.first sel.last]]]} {
set flag 0
}
}
eval "$selection_action_cmd $flag"
}
if {!$anything_selected} {
return
}
if {!$ascii_view} {
return
}
if {$view_mode != {hex}} {
set step 4
} else {
set step 3
}
scan [$right_view index sel.first] {%d.%d} start_row start_col
set start_col [expr {$start_col * $step}]
scan [$right_view index sel.last] {%d.%d} end_row end_col
set end_col [expr {$end_col * $step}]
$left_view tag add sel $start_row.$start_col $end_row.$end_col
set selection_sync_in_P 0
}
## Make scrollbar visible or not
# @parm Bool display - 1 == Visible; 0 == Invisible
# @return void
public method showHideScrollbar {display} {
# Show scrollbar
if {!$scrollbar_visible && $display} {
set scrollbar_visible 1
grid $scrollbar -row 0 -rowspan 2 -column 4 -sticky ns
# Hide scrollbar
} elseif {$scrollbar_visible && !$display} {
set scrollbar_visible 0
grid forget $scrollbar
}
}
## Set scrollbar and synchronize visible area in both views
# text $x -yscrollcommand "$this scrollSet"
# @parm float fraction0 - Fraction of topmost visible area
# @parm float fraction1 - Fraction of bottommost visible area
# @return void
public method scrollSet {fraction0 fraction1} {
$scrollbar set $fraction0 $fraction1
scroll moveto $fraction0
}
## Scroll both views, left address bar and adjust scrollbar
# $scrollbar -command "$this scrollSet"
# @parm String args - Here should be something like "moveto 0.1234"
# @return void
public method scroll args {
if {$scroll_in_progress} {return}
set scroll_in_progress 1
eval "$left_view yview $args"
set idx [$left_view index @5,5]
scan $idx "%d.%d" row col
incr row -1
set top_row $row
$left_view yview $row
$left_address_bar yview $row
if {$ascii_view} {
$right_view yview $row
}
if {$scroll_action_cmd_set} {
eval $scroll_action_cmd
}
update idletasks
set scroll_in_progress 0
}
## Synchronize selection in left view with left view
# Binding for event <<Selection>>
# @return void
public method left_view_selection {} {
if {$selection_sync_in_P} {return}
set selection_sync_in_P 1
if {$ascii_view} {
$right_view tag remove sel 0.0 end
}
if {![llength [$left_view tag nextrange sel 0.0]]} {
set selection_sync_in_P 0
set anything_selected 0
} else {
set anything_selected 1
}
if {$selection_action_cmd_set} {
set flag $anything_selected
if {$flag} {
if {![string length [string trim [$left_view get sel.first sel.last]]]} {
set flag 0
}
}
eval "$selection_action_cmd $flag"
}
if {!$anything_selected} {
return
}
if {!$ascii_view} {
return
}
scan [$left_view index sel.first] {%d.%d} start_row start_col
set start_col [lindex [col_to_start_end $start_col] 2]
scan [$left_view index {sel.last-1c}] {%d.%d} end_row end_col
set end_col [lindex [col_to_start_end $end_col] 2]
incr end_col
$right_view tag add sel $start_row.$start_col $end_row.$end_col
set selection_sync_in_P 0
}
## Copy text from selected view
# @return void
public method text_copy {} {
if {![llength [$left_view tag nextrange sel 0.0]]} {
return
}
if {$selected_view == {left}} {
clipboard clear
clipboard append [string trim [$left_view get sel.first sel.last]]
} elseif {($selected_view == {right}) && $ascii_view} {
clipboard clear
clipboard append [string trim [$right_view get sel.first sel.last]]
}
}
## Paste text to active view
# @return void
public method text_paste {} {
if {$disabled} {return}
# Get clipboard contents
if {[catch {
set text [clipboard get]
}]} then {
set text {}
}
# If clipboard empty then return
if {![string length $text]} {
return
}
# Paste to left view
if {$selected_view == {left}} {
# Remove all characters invalid in current view mode
switch -- $view_mode {
{hex} {
regsub -all {[^0-9a-fA-F ]} $text {} text
set step 1
}
{oct} {
regsub -all {[^0-7 ]} $text {} text
set step 2
}
{dec} {
regsub -all {[^0-9 ]} $text {} text
set step 2
}
}
# Determinate start address
set address [index_to_address left [$left_view index insert]]
# Iterate over the text and convert each pair/triad of charaters
set len [string length $text]
for {set i 0} {$i < $len} {incr i $value_length} {
# Get character pair/triad
set val [string range $text $i [expr {$i + $step}]]
if {[string is space -strict $val]} {
incr address
if {$address >= $total_capacity} {
break
}
continue
}
set val [string trim $val]
set val [string trimleft $val 0]
# Convert value to decimal
if {$val == {}} {
set val 0
}
if {$view_mode == {hex}} {
set val [expr int("0x$val")]
} elseif {$view_mode == {oct}} {
set val [expr int("0$val")]
}
# Check for allowed range
if {$val < 0 || $val > 255} {
continue
}
# Set value in editor, simulator and others
setValue $address $val
if {$cell_value_changed_cmd_set} {
eval "$cell_value_changed_cmd $address $val"
}
incr address
incr i
if {$address >= $total_capacity} {
break
}
}
# Adjust insertion cursor
set address [address_to_index $address]
$left_view mark set insert [lindex $address 0].[lindex $address 2]
$left_view see insert
left_view_adjust_cursor
# Paste to right view
} elseif {($selected_view == {right}) && $ascii_view} {
# Determinate start address, row and column
scan [$right_view index insert] {%d.%d} row col
incr row -1
set address [expr {$row * $width + $col}]
# Iterate over characters in the text
foreach val [split $text {}] {
# Convert to decimal
binary scan $val c val
if {$val < 0 || $val > 126} {
incr address
continue
}
# Check for valid address
if {$address >= $total_capacity} {
break
}
# Set value in editor, simulator and others
setValue $address $val
if {$cell_value_changed_cmd_set} {
eval "$cell_value_changed_cmd $address $val"
}
incr address
}
# Adjust insertion cursor
set address [address_to_index $address]
$right_view mark set insert [lindex $address 0].[lindex $address 1]
$right_view see insert
right_view_adjust_cursor
}
}
## Select all text in both views
# @return void
public method text_selall {} {
$left_view tag add sel 1.0 end
}
## Left view event handler: <B1-Motion>
# @parm Int x - Relative cursor position
# @parm Int y - Relative cursor position
# @return void
public method left_view_B1_Motion {x y} {
# If x,y overlaps widget area -> abort
set max_x [winfo width $left_view]
incr max_x -3
set max_y [winfo height $left_view]
incr max_y -3
if {($x < 3) || ($x > $max_x) || ($y < 3) || ($y > $max_y)} {
return
}
# If x,y is conresponding to current selection -> abort
set target_idx [$left_view index @$x,$y]
if {[llength [$left_view tag nextrange sel 0.0]]} {
if {
([$left_view compare $cur_idx == sel.first]
&&
[$left_view compare $target_idx == sel.last])
||
([$left_view compare $cur_idx == sel.last]
&&
[$left_view compare $target_idx == sel.first])
} then {
return
}
}
# Adjust selection
$left_view tag remove sel 0.0 end
if {[$left_view compare $cur_idx < $target_idx]} {
$left_view tag add sel $cur_idx $target_idx
} elseif {[$left_view compare $cur_idx > $target_idx]} {
$left_view tag add sel $target_idx $cur_idx
}
# Adjust cursor
left_view_move_insert $x $y
update
}
## Left view event handler: <Button-1>
# @parm Int x - Relative cursor position
# @parm Int y - Relative cursor position
# @return void
public method left_view_B1 {x y} {
$left_view tag remove sel 0.0 end
focus $left_view
left_view_move_insert $x $y
set cur_idx [$left_view index @$x,$y]
}
## Set active view
# @parm String side - "left" or "right"
# @return void
public method set_selected_view {side} {
if {$selected_view == $side} {
return
}
set selected_view $side
# Remove cursor tags
foreach widget [list $left_header $left_view] {
$widget tag remove tag_current_full 0.0 end
$widget tag remove tag_current_half 0.0 end
}
if {$ascii_view} {
foreach widget [list $right_header $right_view] {
$widget tag remove tag_current_full 0.0 end
$widget tag remove tag_current_half 0.0 end
}
}
# Create new cursor tags
if {$selected_view == {left}} {
set index [address_to_index $cursor_address]
$left_view mark set insert [lindex $index 0].[lindex $index 2]
left_view_adjust_cursor
} elseif {$ascii_view && $selected_view == {right}} {
set row [expr {($cursor_address / $width) + 1}]
set col [expr {$cursor_address % $width}]
$right_view mark set insert $row.$col
right_view_adjust_cursor
}
}
## Invoke hex editor popup menu
# @parm String side - "left" or "right"
# @parm Int x - Relative mouse pointer position
# @parm Int y - Relative mouse pointer position
# @parm Int X - Absolute mouse pointer position
# @parm Int Y - Absolute mouse pointer position
# @return void
public method popup_menu {side x y X Y} {
# Set widget to deal with
if {$selected_view == {left}} {
set widget $left_view
left_view_move_insert $x $y
} else {
set widget $right_view
}
# Fucus on that widget and determinate cursor position
focus $widget
set cur_idx [$widget index @$x,$y]
if {$ascii_view && $selected_view == {right}} {
$widget mark set insert $cur_idx
right_view_adjust_cursor
}
# Configure popup menu
if {[llength [$widget tag nextrange sel 0.0]]} {
$popup_menu entryconfigure [::mc "Copy"] -state normal
} else {
$popup_menu entryconfigure [::mc "Copy"] -state disabled
}
if {[catch {
if {[string length [clipboard get]]} {
$popup_menu entryconfigure [::mc "Paste"] -state normal
} else {
$popup_menu entryconfigure [::mc "Paste"] -state disabled
}
}]} then {
$popup_menu entryconfigure [::mc "Paste"] -state disabled
}
# Invoke popup menu
tk_popup $popup_menu $X $Y
}
## Left view event handler: <Key>
# Unprintable characters, invalid and non 8 bit characters will be ignored
# @parm Char key - Binary code of pressed key
# @return void
public method left_view_key {key} {
if {$disabled} {return}
# Check if the given value is printable character
if {![string is print -strict $key]} {
return
}
# Determinate current row and column
scan [$left_view index insert] {%d.%d} row col
if {($row == $height) && ($col >= $left_view_width)} {
return
}
# Validate the given value
switch -- $view_mode {
{dec} {
if {![string is integer -strict $key]} {
return
}
}
{hex} {
if {![string is xdigit -strict $key]} {
return
}
}
{oct} {
if {![regexp {^[0-7]+$} $key]} {
return
}
}
}
# Local variables
set boundaries [col_to_start_end $col] ;# Tempotary variable
set col_s [lindex $boundaries 0] ;# Starting column
set col_e [lindex $boundaries 1] ;# End column
set cell [lindex $boundaries 2] ;# Cell number in row
set org_val [$left_view get $row.$col_s $row.$col_e] ;# Original cell value
set org_idx [$left_view index insert] ;# Original insertion index
# Replace character at current insertion index with the new one
$left_view delete insert {insert+1c}
$left_view insert insert $key
$left_view mark set insert {insert-1c}
$left_view tag add normal_font {insert linestart} {insert lineend}
# Determinate new cell value
set val [$left_view get $row.$col_s $row.$col_e]
set val [string trim $val]
set val [string trimleft $val 0]
if {$val == {}} {
set val 0
}
# Convert new cell value to decimal integer
if {$view_mode == {hex}} {
set val [expr "0x$val"]
} elseif {$view_mode == {oct}} {
set val [expr "0$val"]
}
# Check for valid value range
if {$val > 255} {
$left_view delete $row.$col_s $row.$col_e
$left_view tag add normal_font [list $row.0 linestart] [list $row.0 lineend]
$left_view insert $row.$col_s $org_val
$left_view mark set insert $org_idx
left_view_adjust_cursor
return
}
# Invoke pseudo-event <cell_value_changed>
if {$cell_value_changed_cmd_set} {
eval "$cell_value_changed_cmd $cursor_address $val"
}
# Adjust right view
if {$ascii_view} {
set char [format %c $val]
set cell "$row.$cell"
$right_view delete $cell "$cell+1c"
if {($val < 127) && [string is print -strict $char]} {
$right_view insert $cell $char
$right_view tag remove tag_np $cell "$cell+1c"
} else {
$right_view insert $cell {.}
$right_view tag add tag_np $cell "$cell+1c"
}
$right_view tag add normal_font [list $cell linestart] [list $cell lineend]
}
# Adjust insertion cursor
if {($row == $height) && ($col >= ($left_view_width - 1))} {
left_view_adjust_cursor
} else {
left_view_movement 0 Right
}
}
## Perform certain movement action on the right (ascii) view
# @parm String key - Action (one of {Left Right End})
# @return void
public method right_view_movement {key} {
# Remove selection and determinate current column and row
$right_view tag remove sel 0.0 end
scan [$right_view index insert] {%d.%d} row col
# Determinate correction for insertion cursor
switch -- $key {
{Left} { ;# Move left by one character
if {$row == 1 && $col == 0} {
return
}
incr col -1
if {$col < 0} {
set col [expr {$width - 1}]
incr row -1
}
}
{Right} { ;# Move right by one character
if {($row == $height) && ($col >= ($width - 1))} {
return
}
incr col
if {$col >= $width} {
set col 0
incr row
}
}
{End} { ;# Move to the end of the current line
if {$col >= ($width - 1)} {
return
}
set col [expr {$width - 1}]
}
default { ;# CRITICAL ERROR
error "Unrecognized key: $key"
return
}
}
# Adjust insertion cursor
$right_view mark set insert $row.$col
$right_view see insert
# Adjust cursor highlighting tags
right_view_adjust_cursor
}
## Perform certain movement action on the left view
# @parm Bool select - Manipulate selection
# @parm String key - Action (one of {Left Right Up Down Home End Prior Next})
# @return void
public method left_view_movement {select key} {
# Remove selection and determinate current column and row
$left_view tag remove sel 0.0 end
scan [$left_view index insert] {%d.%d} row col
# Determinate cell boundaries
if {$key == {Left} || $key == {Right}} {
set boundaries [col_to_start_end $col]
set col_s [lindex $boundaries 0]
set col_e [lindex $boundaries 1]
}
# Determinate correction for insertion cursor
switch -- $key {
{Left} { ;# Move left by one character
if {$row == 1 && $col == 0} {
return
}
if {$col == $col_s} {
set correction {-2c}
} else {
set correction {-1c}
}
}
{Right} { ;# Move right by one character
incr col_e -1
if {($row == $height) && ($col >= ($left_view_width - 1))} {
return
}
if {$col == $col_e} {
set correction {+2c}
} else {
set correction {+1c}
}
}
{Up} { ;# Move up by one row
if {!$row} {
return
}
set correction {-1l}
}
{Down} { ;# Move down by one row
if {$row == $height} {
return
}
set correction {+1l}
}
{Home} { ;# Move to the beginning of the current line
if {!$col} {
return
}
set correction {linestart}
}
{End} { ;# Move to the end of the current line
if {$col >= ($left_view_width - 1)} {
return
}
set correction {lineend-1c}
}
{Prior} { ;# Move up by a few lines
set correction {-8l}
}
{Next} { ;# Move up by a few lines
set correction {+8l}
}
default { ;# CRITICAL ERROR
error "Unrecognized key: $key"
return
}
}
# Adjust insertion cursor
$left_view mark set insert [$left_view index "insert $correction"]
$left_view see insert
# Adjust selection
if {!$select} {
set cur_idx [$left_view index insert]
} else {
if {[$left_view compare $cur_idx <= insert]} {
$left_view tag add sel $cur_idx insert
} else {
$left_view tag add sel insert $cur_idx
}
}
# Adjust cursor highlighting tags
left_view_adjust_cursor
}
## Left view event handler: <Leave>
# Manages pseudo-event <cell_leave>
# @return void
public method text_view_leave {} {
if {!$in_cell} {
return
}
set in_cell 0
set cell_under_cursor {0.0}
if {$cell_leave_cmd_set} {
eval $cell_leave_cmd
}
}
## Right view event handler: <Motion>
# Manages pseuso-events <cell_motion>, <cell_enter> and <cell_leave>
# @parm Int x - Relative mouse pointer position
# @parm Int y - Relative mouse pointer position
# @parm Int X - Absolute mouse pointer position
# @parm Int Y - Absolute mouse pointer position
# @return void
public method right_view_motion {x y X Y} {
set index [$right_view index @$x,$y]
set dlineinfo [$right_view dlineinfo $index]
if {$y > ([lindex $dlineinfo 1] + [lindex $dlineinfo 3])} {
text_view_leave
return
}
scan $index {%d.%d} row col
# Motion
if {$cell_under_cursor == $index} {
if {$cell_motion_cmd_set} {
eval "$cell_motion_cmd $X $Y"
}
# (Leave + ) Enter
} else {
if {$in_cell} {
if {$cell_leave_cmd_set} {
eval $cell_leave_cmd
}
set in_cell 0
}
if {$cell_enter_cmd_set} {
set address [expr {($row - 1) * $width + $col}]
if {$address >= $total_capacity} {
set address $total_capacity
}
eval "$cell_enter_cmd $address $X $Y"
}
set in_cell 1
}
set cell_under_cursor $index
}
## Left view event handler: <Motion>
# Manages pseuso-events <cell_motion>, <cell_enter> and <cell_leave>
# @parm Int x - Relative mouse pointer position
# @parm Int y - Relative mouse pointer position
# @parm Int X - Absolute mouse pointer position
# @parm Int Y - Absolute mouse pointer position
# @return void
public method left_view_motion {x y X Y} {
set index [$left_view index @$x,$y]
set dlineinfo [$left_view dlineinfo $index]
if {$y > ([lindex $dlineinfo 1] + [lindex $dlineinfo 3])} {
text_view_leave
return
}
scan $index {%d.%d} row col
if {$view_mode != {hex}} {
set step 4
} else {
set step 3
}
# Enter
if {$cell_under_cursor != $index} {
if {$in_cell && $cell_leave_cmd_set} {
eval $cell_leave_cmd
}
if {$cell_enter_cmd_set} {
set address [expr {($row - 1) * $width + ($col / $step)}]
if {$address >= $total_capacity} {
set address $total_capacity
}
eval "$cell_enter_cmd $address $x $y $X $Y"
}
set in_cell 1
# Motion
} elseif {$cell_motion_cmd_set} {
eval "$cell_motion_cmd $X $Y"
}
set cell_under_cursor $index
}
# -------------------------------------------------------------------
# GENERAL PUBLIC INTERFACE
# -------------------------------------------------------------------
## Get editor scroll bar object reference
# @return Widget - Scrolbar
public method get_scrollbar {} {
return $scrollbar
}
## Get editor popup menu object reference
# @return Widget - Popup menu
public method get_popup_menu {} {
return $popup_menu
}
## Get list of values from hex editor
# @parm Int start - Start address
# @parm Int end - End address
# @return List - List of decimal values (e.g. {0 226 {} {} 126 {} 6 8})
public method get_values {start end} {
# Check for allowed address range
if {${::DEBUG}} {
if {$end >= $total_capacity} {
error "Address out of range"
}
if {$end != [expr {int($end)}]} {
error "Address must be integer"
}
if {$start < 0} {
error "Address out of range"
}
if {$start != [expr {int($start)}]} {
error "Address must be integer"
}
}
# Determinate text indexes of area to extract
set index [address_to_index $start]
set start_row [lindex $index 0]
set start_col [lindex $index 2]
set index [address_to_index $end]
set end_row [lindex $index 0]
set end_col [lindex $index 3]
incr end_col
# Determinate cell legth and cell length+space
if {$view_mode != {hex}} {
set step 4
set len 3
} else {
set step 3
set len 2
}
# Initiate extraction
set result {}
set value {}
for {set row $start_row} {$row <= $end_row} {incr row} {
# Interate over cells withing the row
for {set col_s $start_col} {$col_s < $left_view_width} {incr col_s $step} {
# Determinate cell end index
set col_e $col_s
incr col_e $len
if {($row == $end_row) && ($col_s == $end_col)} {
break
}
# Determinate cell value
set value [$left_view get $row.$col_s $row.$col_e]
set value [string trim $value]
# Skip conversion for empty cells
if {$value == {}} {
lappend result {}
continue
}
# Convert cell value to decimal integer
set value [string trimleft $value 0]
if {$value == {}} {
set value 0
}
switch -- $view_mode {
{dec} {
lappend result $value
}
{hex} {
lappend result [expr "0x$value"]
}
{oct} {
lappend result [expr "0$value"]
}
}
}
}
if {$start == $end} {
return [lindex $result 0]
} else {
return $result
}
}
## Set value of the specified cell
# @parm Int address - Cell address
# @parm Int value - New cell value (must be withing interval [0;255])
# @return void
public method setValue {address value} {
# Local variables
set index [address_to_index $address] ;# Text index
set row [lindex $index 0] ;# Row in left view
set cell [lindex $index 1] ;# Column in right view / cell number in row
set start_col [lindex $index 2] ;# Starting column in left view
set end_col [lindex $index 3] ;# End column in left view
set index [$left_view index insert] ;# Current insertion index in left view
# Empty value means clear the cell
if {$value == {}} {
# Clear cell in the left view
$left_view delete $row.$start_col $row.$end_col
if {$view_mode != {hex}} {
$left_view insert $row.$start_col { }
} else {
$left_view insert $row.$start_col { }
}
$left_view mark set insert $index
$left_view tag add normal_font [list $row.0 linestart] [list $row.0 lineend]
# Clear cell in the right view
if {$ascii_view} {
$right_view delete $row.$cell $row.$end_col
$right_view insert $row.$cell { }
$right_view tag add normal_font [list $row.0 linestart] [list $row.0 lineend]
}
# Restore insertion cursor tags
if {$cursor_address == $address} {
if {$selected_view == {left}} {
left_view_adjust_cursor
} else {
right_view_adjust_cursor
}
}
# Restore cell highlight
restore_cell_highlight $address
# Abort the rest of procedure
return
}
# Validate input address and value
if {${::DEBUG}} {
if {$address >= $total_capacity} {
error "Address out of range"
}
if {$address != [expr {int($address)}]} {
error "Address must be integer"
}
if {$value > 255 || $value < 0} {
error "Value of of range"
}
if {$value != [expr {int($value)}]} {
error "Value must be integer"
}
}
# Convert the given value to appropriate string
set original_value $value
switch -- $view_mode {
{hex} {
set value [format %X $value]
if {[string length $value] == 1} {
set value "0$value"
}
}
{oct} {
set value [format %o $value]
set len [string length $value]
if {$len != 3} {
set value "[string repeat {0} [expr {3 - $len}]]$value"
}
}
{dec} {
set value [expr $value]
set len [string length $value]
if {$len != 3} {
set value "[string repeat {0} [expr {3 - $len}]]$value"
}
}
}
# Replace current content of the cell with new value
$left_view delete $row.$start_col $row.$end_col
$left_view insert $row.$start_col $value
$left_view mark set insert $index
$left_view tag add normal_font [list $row.0 linestart] [list $row.0 lineend]
# Adjust right view
if {$ascii_view} {
set end_col $cell
incr end_col
# Convert to character
set value [format %c $original_value]
# Insert value to the text widget
$right_view delete $row.$cell $row.$end_col
if {($original_value < 127) && [string is print -strict $value]} {
$right_view insert $row.$cell $value
$right_view tag remove tag_np $row.$cell "$row.$cell+1c"
} else {
$right_view insert $row.$cell {.}
$right_view tag add tag_np $row.$cell $row.$end_col
}
$right_view tag add normal_font [list $row.0 linestart] [list $row.0 lineend]
# Adjust cursor postion
scan [$right_view index {insert}] {%d.%d} row cell
if {$cell == $width} {
set cell 0
incr row
}
$right_view mark set insert $row.$cell
}
# Restore insertion cursor tags
if {$cursor_address == $address} {
if {$selected_view == {left}} {
left_view_adjust_cursor
} else {
right_view_adjust_cursor
}
}
# Restore cell highlight
restore_cell_highlight $address
}
## Switch view (from left to right and on the contrary)
# @return void
public method switch_views {} {
if {!$ascii_view} {
return
}
if {$selected_view == {left}} {
focus $right_view
} else {
focus $left_view
}
}
## Get current view (left or right)
# @return String - "left" or "right"
public method getCurrentView {} {
return $selected_view
}
## Focus on the left view
# @return void
public method focus_left_view {} {
focus -force $left_view
}
## Focus on the right view
# @return void
public method focus_right_view {} {
if {$ascii_view} {
focus -force $right_view
}
}
## Set cell background highlight (as write in progress)
# @parm Int address - Cell address
# @parm Bool bool - 1 == highlight; 0 == clear highlight
# @parm Int type - Type of highlight (color)
# @return void
public method set_bg_hg {address bool type} {
# Validate input address
if {${::DEBUG}} {
if {$address >= $total_capacity} {
error "Address out of range"
}
if {$address != [expr {int($address)}]} {
error "Address must be integer"
}
if {![string is boolean $bool]} {
error "'$bool' in not booleand value"
}
}
switch -- $type {
0 {
set arr {bg_hg}
set tag {tag_bg_hg}
}
1 {
set arr {bg_hg1}
set tag {tag_bg_hg1}
}
2 {
set arr {bg_hg2}
set tag {tag_bg_hg2}
}
}
if {[subst -nocommands "\$${arr}($address)"] == $bool} {
return
}
set ${arr}($address) $bool
# Local variables
set index [address_to_index $address] ;# (Auxiliary variable)
set row [lindex $index 0] ;# Cell row
set cell [lindex $index 1] ;# Cell number in the row
set start_col [lindex $index 2] ;# Starting column
set end_col [lindex $index 3] ;# End column
# Create highlight
if {$bool} {
set bool {add}
} else {
set bool {remove}
}
$left_view tag $bool $tag $row.$start_col $row.$end_col
if {$ascii_view} {
$right_view tag $bool $tag $row.$cell "$row.$cell+1c"
}
}
## Set cell highlight (as changed)
# @parm Int address - Cell address
# @parm Bool bool - 1 == highlight; 0 == clear highlight
# @return void
public method setHighlighted {address bool} {
# Validate input address
if {${::DEBUG}} {
if {$address >= $total_capacity} {
error "Address out of range"
}
if {$address != [expr {int($address)}]} {
error "Address must be integer"
}
if {![string is boolean $bool]} {
error "'$bool' in not booleand value"
}
}
if {$highlighted_cells($address) == $bool} {
return
}
set highlighted_cells($address) $bool
# Local variables
set index [address_to_index $address] ;# (Auxiliary variable)
set row [lindex $index 0] ;# Cell row
set cell [lindex $index 1] ;# Cell number in the row
set start_col [lindex $index 2] ;# Starting column
set end_col [lindex $index 3] ;# End column
# Create highlight
if {$bool} {
set bool {add}
} else {
set bool {remove}
}
$left_view tag $bool tag_hg $row.$start_col $row.$end_col
if {$ascii_view} {
$right_view tag $bool tag_hg $row.$cell "$row.$cell+1c"
}
}
## Remove all foreground highlighting tags
# @return void
public method clearHighlighting {} {
for {set i 0} {$i < $total_capacity} {incr i} {
set highlighted_cells($i) 0
}
$left_view tag remove tag_hg 0.0 end
if {$ascii_view} {
$right_view tag remove tag_hg 0.0 end
}
}
## Remove all background highlighting tags
# @parm Int type - Type of highlight (color)
# @return void
public method clearBgHighlighting {type} {
switch -- $type {
0 {
set arr {bg_hg}
set tag {tag_bg_hg}
}
1 {
set arr {bg_hg1}
set tag {tag_bg_hg1}
}
2 {
set arr {bg_hg2}
set tag {tag_bg_hg2}
}
}
for {set i 0} {$i < $total_capacity} {incr i} {
set ${arr}($i) 0
}
$left_view tag remove $tag 0.0 end
if {$ascii_view} {
$right_view tag remove $tag 0.0 end
}
}
## Get address of current cell
# @return Int - Address
public method getCurrentCell {} {
return $cursor_address
}
## Set current cell
# @parm Int address - Cell address
# @return void
public method setCurrentCell {address} {
# Check for allowed range
if {$address >= $total_capacity} {
return
}
# Local variables
set index [address_to_index $address] ;# (Auxiliary variable)
set row [lindex $index 0] ;# Cell row
set cell [lindex $index 1] ;# Cell number in the row
set start_col [lindex $index 2] ;# Cell starting column
# Adjust cursor
set cursor_address $address
if {$selected_view == {left}} {
$left_view mark set insert $row.$start_col
$left_view see insert
left_view_adjust_cursor
} else {
$right_view mark set insert $row.$cell
$right_view see insert
right_view_adjust_cursor
}
}
## Scroll to certain cell
# @parm Int address - Cell address
# @return void
public method seeCell {address} {
# Check for allowed range
if {$address >= $total_capacity} {
return
}
# Local variables
set index [address_to_index $address] ;# (Auxiliary variable)
set row [lindex $index 0] ;# Cell row
set cell [lindex $index 1] ;# Cell number in the row
set start_col [lindex $index 2] ;# Cell starting column
# Adjust cursor
if {$selected_view == {left}} {
$left_view see $row.$start_col
} else {
$right_view see $row.$cell
}
}
## Bind command to pseudo-event <current_cell_changed>
# @parm String cmd - command to invoke from root namespace
# Command invocation: eval "$cmd $cursor_address"
# @return void
public method bindCurrentCellChanged {cmd} {
set current_cell_changed_cmd_set 1
set current_cell_changed_cmd $cmd
}
## Bind command to pseudo-event <cell_value_changed>
# @parm String cmd - command to invoke from root namespace
# Command invocation: eval "$cmd $cursor_address $new_value"
# @return void
public method bindCellValueChanged {cmd} {
set cell_value_changed_cmd_set 1
set cell_value_changed_cmd $cmd
}
## Bind command to pseudo-event <cell_enter>
# @parm String cmd - command to invoke from root namespace
# Command invocation: eval "$cmd $cursor_address $X $Y"
# @return void
public method bindCellEnter {cmd} {
set cell_enter_cmd_set 1
set cell_enter_cmd $cmd
bind_mouse_motions
}
## Bind command to pseudo-event <cell_leave>
# @parm String cmd - command to invoke from root namespace
# Command invocation: eval "$cmd"
# @return void
public method bindCellLeave {cmd} {
set cell_leave_cmd_set 1
set cell_leave_cmd $cmd
bind_mouse_motions
}
## Bind command to pseudo-event <cell_motion>
# @parm String cmd - command to invoke from root namespace
# Command invocation: eval "$cmd $X $Y"
# @return void
public method bindCellMotion {cmd} {
set cell_motion_cmd_set 1
set cell_motion_cmd $cmd
bind_mouse_motions
}
## Bind command to pseudo-event <scroll_action>
# @parm String cmd - command to invoke from root namespace
# Command invocation: eval "$cmd"
# @return void
public method bindScrollAction {cmd} {
set scroll_action_cmd_set 1
set scroll_action_cmd $cmd
}
## Bind command to pseudo-event <selection_action>
# @parm String cmd - command to invoke from root namespace
# Command invocation: eval "$cmd bool__something_selected_or_not"
# @return void
public method bindSelectionAction {cmd} {
set selection_action_cmd_set 1
set selection_action_cmd $cmd
}
##
# @return
public method getRangeOfSelection {} {
if {[llength [$left_view tag nextrange sel 0.0]]} {
return [list \
[index_to_address {left} [$left_view index sel.first+1c]] \
[index_to_address {left} [$left_view index sel.last-1c]] \
]
} else {
return {}
}
}
## Get number of topmost visible row in both views
# @return Int - Row number (1st row has number 1)
public method getTopRow {} {
return $top_row
}
## Switch view mode (HEX, DEC etc.)
# @parm String newmode - New mode for left view (one of {hex oct dec})
# @return void
public method switch_mode {newmode} {
if {$newmode == $view_mode} {
return
}
set original_mode $view_mode
set view_mode $newmode
switch -- $view_mode {
{hex} {
set new_value_length 2
set left_view_width [expr {$width * 3 - 1}]
}
{oct} {
set new_value_length 3
set left_view_width [expr {$width * 4 - 1}]
}
{dec} {
set new_value_length 3
set left_view_width [expr {$width * 4 - 1}]
}
default {
error "Invalid mode: $view_mode"
}
}
switch -- $original_mode {
{hex} {
set value_length 2
set skip 3
}
{oct} {
set value_length 3
set skip 4
}
{dec} {
set value_length 3
set skip 4
}
}
$left_view configure -cursor watch
$left_header configure -cursor watch
$left_address_bar configure -cursor watch
if {$ascii_view} {
$right_header configure -cursor watch
$right_view configure -cursor watch
}
update
$left_view configure -width $left_view_width
$left_header configure -width $left_view_width
# Iterate over rows in left view
for {set row 1} {$row <= $height} {incr row} {
set start 0
set end $value_length
set values {}
set lineend [$left_view index [list $row.0 lineend]]
# Save line to list
for {set cell 0} {$cell < $width} {incr cell} {
lappend values [string trim [$left_view get $row.$start $row.$end]]
incr start $skip
incr end $skip
}
$left_view delete $row.0 $lineend
# Convert list
set first 1
set space [string repeat { } $new_value_length]
foreach val $values {
if {!$first} {
$left_view insert $lineend { }
} else {
set first 0
}
if {$val == {}} {
$left_view insert $lineend $space
continue
} else {
set val [string trimleft $val 0]
if {$val == {}} {
set val 0
}
switch -- $original_mode {
{hex} {
# HEX -> DEC
if {$view_mode == {dec}} {
set val [expr "0x$val"]
# HEX -> OCT
} else {
set val [expr "0x$val"]
set val [format {%o} $val]
}
}
{dec} {
# DEC -> HEX
if {$view_mode == {hex}} {
set val [format %X $val]
# DEC -> OCT
} else {
set val [format %o $val]
}
}
{oct} {
# OCT -> HEX
if {$view_mode == {hex}} {
set val [expr "0$val"]
set val [format %X $val]
# OCT -> DEC
} else {
set val [expr "0$val"]
}
}
}
}
set len [string length $val]
if {$len < $new_value_length} {
set len [expr {$new_value_length - $len}]
set val "[string repeat 0 $len]$val"
}
$left_view insert $lineend $val
$left_view tag add normal_font [list $lineend linestart] [list $lineend lineend]
}
}
fill_left_header
for {set i 0} {$i < $total_capacity} {incr i} {
if {$highlighted_cells($i)} {
set highlighted_cells($i) 0
setHighlighted $i 1
}
if {$bg_hg($i)} {
set bg_hg($i) 0
set_bg_hg $i 1
}
}
$left_view configure -cursor xterm
$left_header configure -cursor left_ptr
$left_address_bar configure -cursor left_ptr
if {$ascii_view} {
$right_header configure -cursor left_ptr
$right_view configure -cursor xterm
}
}
## Set hex editor enabled/disabled state
# @parm Bool bool - 1 == enabled; 0 == disabled
# @return void
public method setDisabled {bool} {
set disabled $bool
if {$bool} {
set state {disabled}
} else {
set state {normal}
}
# Set state for the left view
$left_view configure -state $state
if {$bool} {
$left_view configure -bg {#F8F8F8} -fg {#999999} ;#DDDDDD
} else {
$left_view configure -bg {#FFFFFF} -fg {#000000}
}
# Set state for the right view
if {$ascii_view} {
$right_view configure -state $state
if {$bool} {
$right_view configure -bg {#F8F8F8} -fg {#999999} ;#DDDDDD
} else {
$right_view configure -bg {#FFFFFF} -fg {#000000}
}
}
# Set state for certain menu entries
$popup_menu entryconfigure [::mc "Paste"] -state $state
$popup_menu entryconfigure [::mc "Fill with pseudo-random values"] -state $state
}
## Get reference of left view text widget
# @return Widget - Text widget
public method getLeftView {} {
return $left_view
}
## Get reference of right view text widget
# @return Widget - Text widget or {}
public method getRightView {} {
return $right_view
}
## Get configuration list
# @return List - Configuration list
proc get_config {} {
return [list $text_to_find $find_opt(fc) $find_opt(bw)]
}
## Load configuration list generated by function `get_config'
# @param List config - Configuration list generated by `get_config'
# @return void
proc load_config_list {config_list} {
# Load configuration
set text_to_find [lindex $config_list 0]
set find_opt(fc) [lindex $config_list 1]
set find_opt(bw) [lindex $config_list 2]
# Validate loaded configuration
if {![string is boolean -strict $find_opt(fc)]} {
set find_opt(fc) 1
}
if {![string is boolean -strict $find_opt(bw)]} {
set find_opt(bw) 0
}
}
## Find next occurrence of search string
# @return Bool - 0 == Invalid call; 1 == Valid call
public method find_next {} {
if {$last_find_index == {}} {
return 0
}
if {$find_opt(bw)} {
set result [find_FIND $last_find_index-[string length $text_to_find]c]
} else {
set result [find_FIND $last_find_index]
}
return $result
}
## Find previous occurrence of search string
# @return Bool - 0 == Invalid call; 1 == Valid call
public method find_prev {} {
if {$last_find_index == {}} {
return 0
}
set backward_org $find_opt(bw)
set find_opt(bw) [expr {!$find_opt(bw)}]
if {$find_opt(bw)} {
set result [find_FIND $last_find_index-[string length $text_to_find]c]
} else {
set result [find_FIND $last_find_index]
}
set find_opt(bw) $backward_org
return $result
}
## Invoke dialog: Find string
# @return Bool - 1 == string found; 0 == string not found
public method find_dialog {} {
# Remove previous find dialog windows
if {[winfo exists $find_dialog_win]} {
destroy $find_dialog_win
}
# Create toplevel find_dialog_window
incr find_dialog_count
set find_dialog_win [toplevel .hex_editor_find_dialog_$find_dialog_count]
## Create top frame
set top_frame [frame $find_dialog_win.top_frame]
# Text to find
grid [label $top_frame.string_lbl \
-text [mc "Text to find"] \
] -row 0 -column 0 -columnspan 4 -sticky w
grid [ttk::entry $top_frame.string_entry \
-textvariable ::HexEditor::text_to_find \
-width 0 \
] -row 1 -column 1 -sticky we -columnspan 3
# Where
grid [label $top_frame.where_lbl \
-text [mc "Where"] \
] -row 2 -column 0 -columnspan 2 -sticky w
grid [radiobutton $top_frame.radio_0 \
-variable ::HexEditor::where_to_search \
-text [mc "Left view"] -value left \
] -row 3 -column 1 -sticky w
grid [radiobutton $top_frame.radio_1 \
-variable ::HexEditor::where_to_search \
-text [mc "Right view"] -value right \
] -row 4 -column 1 -sticky w
set ::HexEditor::where $selected_view
if {!$ascii_view} {
$top_frame.radio_1 configure -state disabled
}
# Options
grid [label $top_frame.options_lbl \
-text [mc "Options"] \
] -row 2 -column 2 -columnspan 2 -sticky w
grid [checkbutton $top_frame.opt_fc_chb \
-variable ::HexEditor::find_opt(fc) \
-onvalue 1 -offvalue 0 \
-text [mc "From cursor"] \
] -row 3 -column 3 -sticky w
grid [checkbutton $top_frame.opt_bw_chb \
-variable ::HexEditor::find_opt(bw) \
-onvalue 1 -offvalue 0 \
-text [mc "Backwards"] \
] -row 4 -column 3 -sticky w
# Finalize top frame creation
grid columnconfigure $top_frame 0 -minsize 25
grid columnconfigure $top_frame 1 -weight 1
grid columnconfigure $top_frame 2 -minsize 25
grid columnconfigure $top_frame 3 -weight 1
# Create and pack 'OK' and 'CANCEL' buttons
set buttonFrame [frame $find_dialog_win.button_frame]
pack [ttk::button $buttonFrame.ok \
-text [mc "Ok"] \
-compound left \
-image ::ICONS::16::ok \
-command "$this find_FIND" \
] -side left -padx 2
pack [ttk::button $buttonFrame.cancel \
-text [mc "Cancel"] \
-compound left \
-image ::ICONS::16::button_cancel \
-command "$this find_CANCEL" \
] -side left -padx 2
# Events binding (Enter == Find; Escape == Cancel)
bind $find_dialog_win <KeyRelease-Return> "$this find_FIND; break"
bind $find_dialog_win <KeyRelease-KP_Enter> "$this find_FIND; break"
bind $find_dialog_win <KeyRelease-Escape> "$this find_CANCEL; break"
# Pack dialog frames
pack $top_frame -fill both -anchor nw -padx 5 -pady 5
pack $buttonFrame -side bottom -anchor e -padx 5 -pady 5
# Window manager options -- modal find_dialog_window
wm iconphoto $find_dialog_win ::ICONS::16::find
wm title $find_dialog_win [mc "Find"]
wm minsize $find_dialog_win 260 140
wm transient $find_dialog_win $main_frame
wm protocol $find_dialog_win WM_DELETE_WINDOW "
grab release $find_dialog_win
destroy $find_dialog_win
"
update
grab $find_dialog_win
$top_frame.string_entry selection range 0 end
focus -force $top_frame.string_entry
tkwait window $find_dialog_win
if {$last_find_index == {}} {
return 0
} else {
return 1
}
}
# -------------------------------------------------------------------
# HELPER PROCEDURES
# -------------------------------------------------------------------
## Initiate serach
# @return void
public method find_FIND args {
# Determinate search options
set start_index [lindex $args 0]
if {$where_to_search == {left}} {
set widget $left_view
} else {
set widget $right_view
}
if {$find_opt(bw)} {
set direction {-backwards}
} else {
set direction {-forwards}
}
if {$start_index == {}} {
if {$find_opt(fc)} {
set start_index [$widget index insert]
} else {
set start_index 1.0
}
}
# Perform search
set last_find_index [$widget search $direction -nocase -- $text_to_find $start_index]
# String found
if {$last_find_index != {}} {
$popup_menu entryconfigure [::mc "Find next"] -state normal
$popup_menu entryconfigure [::mc "Find previous"] -state normal
catch {
$widget tag remove sel 0.0 end
}
set end_idx $last_find_index+[string length $text_to_find]c
$widget tag add sel $last_find_index $end_idx
$widget mark set insert $end_idx
$widget see $end_idx
set last_find_index $end_idx
set result 1
# String not found
} else {
$popup_menu entryconfigure [::mc "Find next"] -state disabled
$popup_menu entryconfigure [::mc "Find previous"] -state disabled
if {[winfo exists $find_dialog_win]} {
set parent $find_dialog_win
} else {
set $main_frame
}
tk_messageBox \
-parent $parent \
-type ok \
-icon warning \
-title [mc "String not found"] \
-message [mc "Search string '%s' not foundĀ !" $text_to_find]
set result 0
}
# Close find dialog
if {[winfo exists $find_dialog_win]} {
find_CANCEL
}
return $result
}
## Close find dialog
# @return void
public method find_CANCEL {} {
grab release $find_dialog_win
destroy $find_dialog_win
}
}
## Initialize NS variables
# Find options
array set ::HexEditor::find_opt {
fc 1
bw 0
}
# >>> File inclusion guard
}
# <<< File inclusion guard
|