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EDITING: sizegrip.tcl

#
# Sizegrip widget bindings.
#
# Dragging a sizegrip widget resizes the containing toplevel.
#
# NOTE: the sizegrip widget must be in the lower right hand corner.
#

switch -- [tk windowingsystem] {
    x11 -
    win32 {
	option add *TSizegrip.cursor [ttk::cursor seresize]
    }
    aqua {
    	# Aqua sizegrips use default Arrow cursor.
    }
}

namespace eval ttk::sizegrip {
    variable State
    array set State {
	pressed 	0
	pressX 		0
	pressY 		0
	width 		0
	height 		0
	widthInc	1
	heightInc	1
        resizeX         1
        resizeY         1
	toplevel 	{}
    }
}

bind TSizegrip <ButtonPress-1> 		{ ttk::sizegrip::Press	%W %X %Y }
bind TSizegrip <B1-Motion> 		{ ttk::sizegrip::Drag 	%W %X %Y }
bind TSizegrip <ButtonRelease-1> 	{ ttk::sizegrip::Release %W %X %Y }

proc ttk::sizegrip::Press {W X Y} {
    variable State

if {[$W instate disabled]} { return }

set top [winfo toplevel $W]

# If the toplevel is not resizable then bail
    foreach {State(resizeX) State(resizeY)} [wm resizable $top] break
    if {!$State(resizeX) && !$State(resizeY)} {
        return
    }

# Sanity-checks:
    #	If a negative X or Y position was specified for [wm geometry],
    #   just bail out -- there's no way to handle this cleanly.
    #
    if {[scan [wm geometry $top] "%dx%d+%d+%d" width height x y] != 4} {
	return;
    }

# Account for gridded geometry:
    #
    set grid [wm grid $top]
    if {[llength $grid]} {
	set State(widthInc) [lindex $grid 2]
	set State(heightInc) [lindex $grid 3]
    } else {
	set State(widthInc) [set State(heightInc) 1]
    }

set State(toplevel) $top
    set State(pressX) $X
    set State(pressY) $Y
    set State(width)  $width
    set State(height) $height
    set State(x)      $x
    set State(y)      $y
    set State(pressed) 1
}

proc ttk::sizegrip::Drag {W X Y} {
    variable State
    if {!$State(pressed)} { return }
    set w $State(width)
    set h $State(height)
    if {$State(resizeX)} {
        set w [expr {$w + ($X - $State(pressX))/$State(widthInc)}]
    }
    if {$State(resizeY)} {
        set h [expr {$h + ($Y - $State(pressY))/$State(heightInc)}]
    }
    if {$w <= 0} { set w 1 }
    if {$h <= 0} { set h 1 }
    set x $State(x) ; set y $State(y)
    wm geometry $State(toplevel) ${w}x${h}+${x}+${y}
}

proc ttk::sizegrip::Release {W X Y} {
    variable State
    set State(pressed) 0
}

#*EOF*

CANCEL

Name	Type	Size	Modified	Actions
↩ ..	DIR	—	—
📄 altTheme.tcl	TCL	3.5 KB	2019-10-16 17:25	EDIT
📄 aquaTheme.tcl	TCL	2 KB	2019-10-16 17:25	EDIT
📄 button.tcl	TCL	2.9 KB	2019-10-16 17:25	EDIT
📄 clamTheme.tcl	TCL	4.5 KB	2019-10-16 17:25	EDIT
📄 classicTheme.tcl	TCL	3.6 KB	2019-10-16 17:25	EDIT
📄 combobox.tcl	TCL	12.1 KB	2019-10-16 17:25	EDIT
📄 cursors.tcl	TCL	3.9 KB	2019-10-16 17:25	EDIT
📄 defaults.tcl	TCL	4.2 KB	2019-10-16 17:25	EDIT
📄 entry.tcl	TCL	16 KB	2019-10-16 17:25	EDIT
📄 fonts.tcl	TCL	5.4 KB	2019-10-16 17:25	EDIT
📄 menubutton.tcl	TCL	4.8 KB	2019-10-16 17:25	EDIT
📄 notebook.tcl	TCL	5.5 KB	2019-10-16 17:25	EDIT
📄 panedwindow.tcl	TCL	1.9 KB	2019-10-16 17:25	EDIT
📄 progress.tcl	TCL	1.1 KB	2019-10-16 17:25	EDIT
📄 scale.tcl	TCL	2.6 KB	2019-10-16 17:25	EDIT
📄 scrollbar.tcl	TCL	3 KB	2019-10-16 17:25	EDIT
📄 sizegrip.tcl	TCL	2.3 KB	2019-10-16 17:25	EDIT
📄 spinbox.tcl	TCL	4.2 KB	2019-10-16 17:25	EDIT
📄 treeview.tcl	TCL	8.7 KB	2019-10-16 17:25	EDIT
📄 ttk.tcl	TCL	4.4 KB	2019-10-16 17:25	EDIT
📄 utils.tcl	TCL	8.4 KB	2019-10-16 17:25	EDIT
📄 vistaTheme.tcl	TCL	9.1 KB	2019-10-16 17:25	EDIT
📄 winTheme.tcl	TCL	2.6 KB	2019-10-16 17:25	EDIT
📄 xpTheme.tcl	TCL	1.9 KB	2019-10-16 17:25	EDIT