355 lines
9.8 KiB
Tcl
355 lines
9.8 KiB
Tcl
# Functions for supporting the use of themed Tk widgets in git-gui.
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# Copyright (C) 2009 Pat Thoyts <patthoyts@users.sourceforge.net>
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proc ttk_get_current_theme {} {
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# Handle either current Tk or older versions of 8.5
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if {[catch {set theme [ttk::style theme use]}]} {
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set theme $::ttk::currentTheme
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}
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return $theme
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}
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proc InitTheme {} {
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# Create a color label style (bg can be overridden by widget option)
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ttk::style layout Color.TLabel {
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Color.Label.border -sticky news -children {
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Color.label.fill -sticky news -children {
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Color.Label.padding -sticky news -children {
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Color.Label.label -sticky news}}}}
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eval [linsert [ttk::style configure TLabel] 0 \
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ttk::style configure Color.TLabel]
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ttk::style configure Color.TLabel \
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-borderwidth 0 -relief flat -padding 2
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ttk::style map Color.TLabel -background {{} gold}
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# We also need a padded label.
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ttk::style configure Padded.TLabel \
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-padding {5 5} -borderwidth 1 -relief solid
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# We need a gold frame.
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ttk::style layout Gold.TFrame {
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Gold.Frame.border -sticky nswe -children {
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Gold.Frame.fill -sticky nswe}}
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ttk::style configure Gold.TFrame -background gold -relief flat
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# listboxes should have a theme border so embed in ttk::frame
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ttk::style layout SListbox.TFrame {
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SListbox.Frame.Entry.field -sticky news -border true -children {
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SListbox.Frame.padding -sticky news
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}
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}
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set theme [ttk_get_current_theme]
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if {[lsearch -exact {default alt classic clam} $theme] != -1} {
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# Simple override of standard ttk::entry to change the field
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# packground according to a state flag. We should use 'user1'
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# but not all versions of 8.5 support that so make use of 'pressed'
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# which is not normally in use for entry widgets.
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ttk::style layout Edged.Entry [ttk::style layout TEntry]
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ttk::style map Edged.Entry {*}[ttk::style map TEntry]
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ttk::style configure Edged.Entry {*}[ttk::style configure TEntry] \
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-fieldbackground lightgreen
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ttk::style map Edged.Entry -fieldbackground {
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{pressed !disabled} lightpink
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}
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} else {
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# For fancier themes, in particular the Windows ones, the field
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# element may not support changing the background color. So instead
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# override the fill using the default fill element. If we overrode
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# the vista theme field element we would loose the themed border
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# of the widget.
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catch {
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ttk::style element create color.fill from default
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}
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ttk::style layout Edged.Entry {
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Edged.Entry.field -sticky nswe -border 0 -children {
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Edged.Entry.border -sticky nswe -border 1 -children {
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Edged.Entry.padding -sticky nswe -children {
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Edged.Entry.color.fill -sticky nswe -children {
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Edged.Entry.textarea -sticky nswe
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}
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}
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}
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}
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}
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ttk::style configure Edged.Entry {*}[ttk::style configure TEntry] \
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-background lightgreen -padding 0 -borderwidth 0
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ttk::style map Edged.Entry {*}[ttk::style map TEntry] \
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-background {{pressed !disabled} lightpink}
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}
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if {[lsearch [bind . <<ThemeChanged>>] InitTheme] == -1} {
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bind . <<ThemeChanged>> +[namespace code [list InitTheme]]
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}
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}
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# Define a style used for the surround of text widgets.
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proc InitEntryFrame {} {
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ttk::style theme settings default {
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ttk::style layout EntryFrame {
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EntryFrame.field -sticky nswe -border 0 -children {
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EntryFrame.fill -sticky nswe -children {
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EntryFrame.padding -sticky nswe
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}
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}
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}
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ttk::style configure EntryFrame -padding 1 -relief sunken
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ttk::style map EntryFrame -background {}
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}
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ttk::style theme settings classic {
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ttk::style configure EntryFrame -padding 2 -relief sunken
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ttk::style map EntryFrame -background {}
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}
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ttk::style theme settings alt {
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ttk::style configure EntryFrame -padding 2
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ttk::style map EntryFrame -background {}
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}
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ttk::style theme settings clam {
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ttk::style configure EntryFrame -padding 2
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ttk::style map EntryFrame -background {}
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}
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# Ignore errors for missing native themes
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catch {
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ttk::style theme settings winnative {
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ttk::style configure EntryFrame -padding 2
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}
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ttk::style theme settings xpnative {
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ttk::style configure EntryFrame -padding 1
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ttk::style element create EntryFrame.field vsapi \
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EDIT 1 {disabled 4 focus 3 active 2 {} 1} -padding 1
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}
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ttk::style theme settings vista {
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ttk::style configure EntryFrame -padding 2
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ttk::style element create EntryFrame.field vsapi \
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EDIT 6 {disabled 4 focus 3 active 2 {} 1} -padding 2
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}
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}
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bind EntryFrame <Enter> {%W instate !disabled {%W state active}}
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bind EntryFrame <Leave> {%W state !active}
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bind EntryFrame <<ThemeChanged>> {
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set pad [ttk::style lookup EntryFrame -padding]
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%W configure -padding [expr {$pad eq {} ? 1 : $pad}]
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}
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}
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proc gold_frame {w args} {
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global use_ttk
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if {$use_ttk} {
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eval [linsert $args 0 ttk::frame $w -style Gold.TFrame]
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} else {
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eval [linsert $args 0 frame $w -background gold]
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}
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}
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proc tlabel {w args} {
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global use_ttk
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if {$use_ttk} {
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set cmd [list ttk::label $w -style Color.TLabel]
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foreach {k v} $args {
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switch -glob -- $k {
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-activebackground {}
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default { lappend cmd $k $v }
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}
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}
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eval $cmd
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} else {
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eval [linsert $args 0 label $w]
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}
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}
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# The padded label gets used in the about class.
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proc paddedlabel {w args} {
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global use_ttk
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if {$use_ttk} {
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eval [linsert $args 0 ttk::label $w -style Padded.TLabel]
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} else {
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eval [linsert $args 0 label $w \
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-padx 5 -pady 5 \
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-justify left \
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-anchor w \
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-borderwidth 1 \
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-relief solid]
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}
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}
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# Create a toplevel for use as a dialog.
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# If available, sets the EWMH dialog hint and if ttk is enabled
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# place a themed frame over the surface.
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proc Dialog {w args} {
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eval [linsert $args 0 toplevel $w -class Dialog]
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catch {wm attributes $w -type dialog}
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pave_toplevel $w
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return $w
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}
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# Tk toplevels are not themed - so pave it over with a themed frame to get
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# the base color correct per theme.
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proc pave_toplevel {w} {
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global use_ttk
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if {$use_ttk && ![winfo exists $w.!paving]} {
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set paving [ttk::frame $w.!paving]
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place $paving -x 0 -y 0 -relwidth 1 -relheight 1
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lower $paving
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}
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}
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# Create a scrolled listbox with appropriate border for the current theme.
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# On many themes the border for a scrolled listbox needs to go around the
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# listbox and the scrollbar.
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proc slistbox {w args} {
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global use_ttk NS
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if {$use_ttk} {
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set f [ttk::frame $w -style SListbox.TFrame -padding 2]
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} else {
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set f [frame $w -relief flat]
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}
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if {[catch {
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if {$use_ttk} {
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eval [linsert $args 0 listbox $f.list -relief flat \
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-highlightthickness 0 -borderwidth 0]
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} else {
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eval [linsert $args 0 listbox $f.list]
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}
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${NS}::scrollbar $f.vs -command [list $f.list yview]
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$f.list configure -yscrollcommand [list $f.vs set]
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grid $f.list $f.vs -sticky news
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grid rowconfigure $f 0 -weight 1
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grid columnconfigure $f 0 -weight 1
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bind $f.list <<ListboxSelect>> \
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[list event generate $w <<ListboxSelect>>]
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interp hide {} $w
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interp alias {} $w {} $f.list
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} err]} {
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destroy $f
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return -code error $err
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}
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return $w
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}
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# fetch the background color from a widget.
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proc get_bg_color {w} {
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global use_ttk
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if {$use_ttk} {
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set bg [ttk::style lookup [winfo class $w] -background]
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} else {
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set bg [$w cget -background]
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}
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return $bg
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}
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# ttk::spinbox didn't get added until 8.6
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proc tspinbox {w args} {
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global use_ttk
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if {$use_ttk && [llength [info commands ttk::spinbox]] > 0} {
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eval [linsert $args 0 ttk::spinbox $w]
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} else {
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eval [linsert $args 0 spinbox $w]
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}
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}
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# Create a text widget with any theme specific properties.
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proc ttext {w args} {
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global use_ttk
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if {$use_ttk} {
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switch -- [ttk_get_current_theme] {
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"vista" - "xpnative" {
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lappend args -highlightthickness 0 -borderwidth 0
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}
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}
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}
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set w [eval [linsert $args 0 text $w]]
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if {$use_ttk} {
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if {[winfo class [winfo parent $w]] eq "EntryFrame"} {
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bind $w <FocusIn> {[winfo parent %W] state focus}
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bind $w <FocusOut> {[winfo parent %W] state !focus}
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}
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}
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return $w
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}
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# themed frame suitable for surrounding a text field.
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proc textframe {w args} {
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global use_ttk
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if {$use_ttk} {
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if {[catch {ttk::style layout EntryFrame}]} {
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InitEntryFrame
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}
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eval [linsert $args 0 ttk::frame $w -class EntryFrame -style EntryFrame]
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} else {
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eval [linsert $args 0 frame $w]
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}
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return $w
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}
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proc tentry {w args} {
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global use_ttk
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if {$use_ttk} {
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InitTheme
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ttk::entry $w -style Edged.Entry
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} else {
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entry $w
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}
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rename $w _$w
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interp alias {} $w {} tentry_widgetproc $w
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eval [linsert $args 0 tentry_widgetproc $w configure]
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return $w
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}
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proc tentry_widgetproc {w cmd args} {
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global use_ttk
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switch -- $cmd {
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state {
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if {$use_ttk} {
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return [uplevel 1 [list _$w $cmd] $args]
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} else {
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if {[lsearch -exact $args pressed] != -1} {
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_$w configure -background lightpink
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} else {
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_$w configure -background lightgreen
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}
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}
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}
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configure {
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if {$use_ttk} {
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if {[set n [lsearch -exact $args -background]] != -1} {
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set args [lreplace $args $n [incr n]]
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if {[llength $args] == 0} {return}
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}
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}
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return [uplevel 1 [list _$w $cmd] $args]
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}
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default { return [uplevel 1 [list _$w $cmd] $args] }
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}
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}
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# Tk 8.6 provides a standard font selection dialog. This uses the native
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# dialogs on Windows and MacOSX or a standard Tk dialog on X11.
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proc tchoosefont {w title familyvar sizevar} {
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if {[package vsatisfies [package provide Tk] 8.6]} {
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upvar #0 $familyvar family
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upvar #0 $sizevar size
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tk fontchooser configure -parent $w -title $title \
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-font [list $family $size] \
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-command [list on_choosefont $familyvar $sizevar]
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tk fontchooser show
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} else {
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choose_font::pick $w $title $familyvar $sizevar
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}
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}
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# Called when the Tk 8.6 fontchooser selects a font.
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proc on_choosefont {familyvar sizevar font} {
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upvar #0 $familyvar family
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upvar #0 $sizevar size
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set font [font actual $font]
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set family [dict get $font -family]
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set size [dict get $font -size]
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}
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# Local variables:
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# mode: tcl
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# indent-tabs-mode: t
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# tab-width: 4
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# End:
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