mirror of
https://github.com/Anjok07/ultimatevocalremovergui.git
synced 2024-11-24 15:30:11 +01:00
253 lines
9.9 KiB
Tcl
253 lines
9.9 KiB
Tcl
#
|
|
# tkdnd_utils.tcl --
|
|
#
|
|
# This file implements some utility procedures that are used by the TkDND
|
|
# package.
|
|
#
|
|
# This software is copyrighted by:
|
|
# George Petasis, National Centre for Scientific Research "Demokritos",
|
|
# Aghia Paraskevi, Athens, Greece.
|
|
# e-mail: petasis@iit.demokritos.gr
|
|
#
|
|
# The following terms apply to all files associated
|
|
# with the software unless explicitly disclaimed in individual files.
|
|
#
|
|
# The authors hereby grant permission to use, copy, modify, distribute,
|
|
# and license this software and its documentation for any purpose, provided
|
|
# that existing copyright notices are retained in all copies and that this
|
|
# notice is included verbatim in any distributions. No written agreement,
|
|
# license, or royalty fee is required for any of the authorized uses.
|
|
# Modifications to this software may be copyrighted by their authors
|
|
# and need not follow the licensing terms described here, provided that
|
|
# the new terms are clearly indicated on the first page of each file where
|
|
# they apply.
|
|
#
|
|
# IN NO EVENT SHALL THE AUTHORS OR DISTRIBUTORS BE LIABLE TO ANY PARTY
|
|
# FOR DIRECT, INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES
|
|
# ARISING OUT OF THE USE OF THIS SOFTWARE, ITS DOCUMENTATION, OR ANY
|
|
# DERIVATIVES THEREOF, EVEN IF THE AUTHORS HAVE BEEN ADVISED OF THE
|
|
# POSSIBILITY OF SUCH DAMAGE.
|
|
#
|
|
# THE AUTHORS AND DISTRIBUTORS SPECIFICALLY DISCLAIM ANY WARRANTIES,
|
|
# INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY,
|
|
# FITNESS FOR A PARTICULAR PURPOSE, AND NON-INFRINGEMENT. THIS SOFTWARE
|
|
# IS PROVIDED ON AN "AS IS" BASIS, AND THE AUTHORS AND DISTRIBUTORS HAVE
|
|
# NO OBLIGATION TO PROVIDE MAINTENANCE, SUPPORT, UPDATES, ENHANCEMENTS, OR
|
|
# MODIFICATIONS.
|
|
#
|
|
|
|
package require tkdnd
|
|
namespace eval ::tkdnd {
|
|
namespace eval utils {
|
|
};# namespace ::tkdnd::utils
|
|
namespace eval text {
|
|
variable _drag_tag tkdnd::drag::selection::tag
|
|
variable _state {}
|
|
variable _drag_source_widget {}
|
|
variable _drop_target_widget {}
|
|
variable _now_dragging 0
|
|
};# namespace ::tkdnd::text
|
|
};# namespace ::tkdnd
|
|
|
|
bind TkDND_Drag_Text1 <ButtonPress-1> {tkdnd::text::_begin_drag clear 1 %W %s %X %Y %x %y}
|
|
bind TkDND_Drag_Text1 <B1-Motion> {tkdnd::text::_begin_drag motion 1 %W %s %X %Y %x %y}
|
|
bind TkDND_Drag_Text1 <B1-Leave> {tkdnd::text::_TextAutoScan %W %x %y}
|
|
bind TkDND_Drag_Text1 <ButtonRelease-1> {tkdnd::text::_begin_drag reset 1 %W %s %X %Y %x %y}
|
|
bind TkDND_Drag_Text2 <ButtonPress-2> {tkdnd::text::_begin_drag clear 2 %W %s %X %Y %x %y}
|
|
bind TkDND_Drag_Text2 <B2-Motion> {tkdnd::text::_begin_drag motion 2 %W %s %X %Y %x %y}
|
|
bind TkDND_Drag_Text2 <ButtonRelease-2> {tkdnd::text::_begin_drag reset 2 %W %s %X %Y %x %y}
|
|
bind TkDND_Drag_Text3 <ButtonPress-3> {tkdnd::text::_begin_drag clear 3 %W %s %X %Y %x %y}
|
|
bind TkDND_Drag_Text3 <B3-Motion> {tkdnd::text::_begin_drag motion 3 %W %s %X %Y %x %y}
|
|
bind TkDND_Drag_Text3 <ButtonRelease-3> {tkdnd::text::_begin_drag reset 3 %W %s %X %Y %x %y}
|
|
|
|
# ----------------------------------------------------------------------------
|
|
# Command tkdnd::text::drag_source
|
|
# ----------------------------------------------------------------------------
|
|
proc ::tkdnd::text::drag_source { mode path { types DND_Text } { event 1 } { tagprefix TkDND_Drag_Text } { tag sel } } {
|
|
switch -exact -- $mode {
|
|
register {
|
|
$path tag bind $tag <ButtonPress-${event}> \
|
|
"tkdnd::text::_begin_drag press ${event} %W %s %X %Y %x %y"
|
|
## Set a binding to the widget, to put selection as data...
|
|
bind $path <<DragInitCmd>> "::tkdnd::text::DragInitCmd $path {%t} $tag"
|
|
## Set a binding to the widget, to remove selection if action is move...
|
|
bind $path <<DragEndCmd>> "::tkdnd::text::DragEndCmd $path %A $tag"
|
|
}
|
|
unregister {
|
|
$path tag bind $tag <ButtonPress-${event}> {}
|
|
bind $path <<DragInitCmd>> {}
|
|
bind $path <<DragEndCmd>> {}
|
|
}
|
|
}
|
|
::tkdnd::drag_source $mode $path $types $event $tagprefix
|
|
};# ::tkdnd::text::drag_source
|
|
|
|
# ----------------------------------------------------------------------------
|
|
# Command tkdnd::text::drop_target
|
|
# ----------------------------------------------------------------------------
|
|
proc ::tkdnd::text::drop_target { mode path { types DND_Text } } {
|
|
switch -exact -- $mode {
|
|
register {
|
|
bind $path <<DropPosition>> "::tkdnd::text::DropPosition $path %X %Y %A %a %m"
|
|
bind $path <<Drop>> "::tkdnd::text::Drop $path %D %X %Y %A %a %m"
|
|
}
|
|
unregister {
|
|
bind $path <<DropEnter>> {}
|
|
bind $path <<DropPosition>> {}
|
|
bind $path <<DropLeave>> {}
|
|
bind $path <<Drop>> {}
|
|
}
|
|
}
|
|
::tkdnd::drop_target $mode $path $types
|
|
};# ::tkdnd::text::drop_target
|
|
|
|
# ----------------------------------------------------------------------------
|
|
# Command tkdnd::text::DragInitCmd
|
|
# ----------------------------------------------------------------------------
|
|
proc ::tkdnd::text::DragInitCmd { path { types DND_Text } { tag sel } { actions { copy move } } } {
|
|
## Save the selection indices...
|
|
variable _drag_source_widget
|
|
variable _drop_target_widget
|
|
set _drag_source_widget $path
|
|
set _drop_target_widget {}
|
|
_save_selection $path $tag
|
|
list $actions $types [$path get $tag.first $tag.last]
|
|
};# ::tkdnd::text::DragInitCmd
|
|
|
|
# ----------------------------------------------------------------------------
|
|
# Command tkdnd::text::DragEndCmd
|
|
# ----------------------------------------------------------------------------
|
|
proc ::tkdnd::text::DragEndCmd { path action { tag sel } } {
|
|
variable _drag_source_widget
|
|
variable _drop_target_widget
|
|
set _drag_source_widget {}
|
|
set _drop_target_widget {}
|
|
_restore_selection $path $tag
|
|
switch -exact -- $action {
|
|
move {
|
|
## Delete the original selected text...
|
|
variable _selection_first
|
|
variable _selection_last
|
|
$path delete $_selection_first $_selection_last
|
|
}
|
|
}
|
|
};# ::tkdnd::text::DragEndCmd
|
|
|
|
# ----------------------------------------------------------------------------
|
|
# Command tkdnd::text::DropPosition
|
|
# ----------------------------------------------------------------------------
|
|
proc ::tkdnd::text::DropPosition { path X Y action actions keys} {
|
|
variable _drag_source_widget
|
|
variable _drop_target_widget
|
|
set _drop_target_widget $path
|
|
## This check is primitive, a more accurate one is needed!
|
|
if {$path eq $_drag_source_widget} {
|
|
## This is a drag within the same widget! Set action to move...
|
|
if {"move" in $actions} {set action move}
|
|
}
|
|
incr X -[winfo rootx $path]
|
|
incr Y -[winfo rooty $path]
|
|
$path mark set insert @$X,$Y; update
|
|
return $action
|
|
};# ::tkdnd::text::DropPosition
|
|
|
|
# ----------------------------------------------------------------------------
|
|
# Command tkdnd::text::Drop
|
|
# ----------------------------------------------------------------------------
|
|
proc ::tkdnd::text::Drop { path data X Y action actions keys } {
|
|
incr X -[winfo rootx $path]
|
|
incr Y -[winfo rooty $path]
|
|
$path mark set insert @$X,$Y
|
|
$path insert [$path index insert] $data
|
|
return $action
|
|
};# ::tkdnd::text::Drop
|
|
|
|
# ----------------------------------------------------------------------------
|
|
# Command tkdnd::text::_save_selection
|
|
# ----------------------------------------------------------------------------
|
|
proc ::tkdnd::text::_save_selection { path tag} {
|
|
variable _drag_tag
|
|
variable _selection_first
|
|
variable _selection_last
|
|
variable _selection_tag $tag
|
|
set _selection_first [$path index $tag.first]
|
|
set _selection_last [$path index $tag.last]
|
|
$path tag add $_drag_tag $_selection_first $_selection_last
|
|
$path tag configure $_drag_tag \
|
|
-background [$path tag cget $tag -background] \
|
|
-foreground [$path tag cget $tag -foreground]
|
|
};# tkdnd::text::_save_selection
|
|
|
|
# ----------------------------------------------------------------------------
|
|
# Command tkdnd::text::_restore_selection
|
|
# ----------------------------------------------------------------------------
|
|
proc ::tkdnd::text::_restore_selection { path tag} {
|
|
variable _drag_tag
|
|
variable _selection_first
|
|
variable _selection_last
|
|
$path tag delete $_drag_tag
|
|
$path tag remove $tag 0.0 end
|
|
#$path tag add $tag $_selection_first $_selection_last
|
|
};# tkdnd::text::_restore_selection
|
|
|
|
# ----------------------------------------------------------------------------
|
|
# Command tkdnd::text::_begin_drag
|
|
# ----------------------------------------------------------------------------
|
|
proc ::tkdnd::text::_begin_drag { event button source state X Y x y } {
|
|
variable _drop_target_widget
|
|
variable _state
|
|
# puts "::tkdnd::text::_begin_drag $event $button $source $state $X $Y $x $y"
|
|
|
|
switch -exact -- $event {
|
|
clear {
|
|
switch -exact -- $_state {
|
|
press {
|
|
## Do not execute other bindings, as they will erase selection...
|
|
return -code break
|
|
}
|
|
}
|
|
set _state clear
|
|
}
|
|
motion {
|
|
variable _now_dragging
|
|
if {$_now_dragging} {return -code break}
|
|
if { [string equal $_state "press"] } {
|
|
variable _x0; variable _y0
|
|
if { abs($_x0-$X) > ${::tkdnd::_dx} || abs($_y0-$Y) > ${::tkdnd::_dy} } {
|
|
set _state "done"
|
|
set _drop_target_widget {}
|
|
set _now_dragging 1
|
|
set code [catch {
|
|
::tkdnd::_init_drag $button $source $state $X $Y $x $y
|
|
} info options]
|
|
set _drop_target_widget {}
|
|
set _now_dragging 0
|
|
if {$code != 0} {
|
|
## Something strange occurred...
|
|
return -options $options $info
|
|
}
|
|
}
|
|
return -code break
|
|
}
|
|
set _state clear
|
|
}
|
|
press {
|
|
variable _x0; variable _y0
|
|
set _x0 $X
|
|
set _y0 $Y
|
|
set _state "press"
|
|
}
|
|
reset {
|
|
set _state {}
|
|
}
|
|
}
|
|
if {$source eq $_drop_target_widget} {return -code break}
|
|
return -code continue
|
|
};# tkdnd::text::_begin_drag
|
|
|
|
proc tkdnd::text::_TextAutoScan {w x y} {
|
|
variable _now_dragging
|
|
if {$_now_dragging} {return -code break}
|
|
return -code continue
|
|
};# tkdnd::text::_TextAutoScan
|