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https://github.com/NGSolve/netgen.git
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97 lines
3.0 KiB
Tcl
97 lines
3.0 KiB
Tcl
#!/bin/sh
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# the next line restarts using tclsh \
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exec tclsh "$0" "$@"
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# $Id: double.tcl,v 1.11 2009/03/12 23:59:35 gregcouch Exp $
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# Togl - a Tk OpenGL widget
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# Copyright (C) 1996 Brian Paul and Ben Bederson
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# Copyright (C) 2006-2007 Greg Couch
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# See the LICENSE file for copyright details.
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# An Tk/OpenGL widget demo with two windows, one single buffered and the
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# other double buffered.
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package provide double 1.0
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# add parent directory to path to find Togl's pkgIndex in current directory
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if { [file exists pkgIndex.tcl] } {
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set auto_path [linsert $auto_path 0 ..]
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}
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# following load also loads Tk and Togl packages
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load [file dirname [info script]]/double[info sharedlibextension]
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# create ::double namespace
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namespace eval ::double {
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}
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proc double::setup {} {
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wm title . "Single vs Double Buffering"
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# create first Togl widget
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togl .o1 -width 200 -height 200 -rgba true -double false -depth true -ident "Single Buffered" -create double::create_cb -display double::display_cb -reshape double::reshape_cb
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# create second Togl widget, share display lists with first widget
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togl .o2 -width 200 -height 200 -rgba true -double true -depth true -ident "Double Buffered" -sharelist "Single Buffered" -create double::create_cb -display double::display_cb -reshape double::reshape_cb
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scale .sx -label {X Axis} -from 0 -to 360 -command {::double::setAngle x} -orient horizontal
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scale .sy -label {Y Axis} -from 0 -to 360 -command {::double::setAngle y} -orient horizontal
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button .btn -text Quit -command exit
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bind .o1 <B1-Motion> {
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::double::motion_event [lindex [%W config -width] 4] \
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[lindex [%W config -height] 4] \
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%x %y
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}
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bind .o2 <B1-Motion> {
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::double::motion_event [lindex [%W config -width] 4] \
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[lindex [%W config -height] 4] \
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%x %y
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}
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grid rowconfigure . 0 -weight 1
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grid columnconfigure . 0 -weight 1 -uniform same
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grid columnconfigure . 1 -weight 1 -uniform same
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grid .o1 -row 0 -column 0 -sticky nesw -padx 3 -pady 3
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grid .o2 -row 0 -column 1 -sticky nesw -padx 3 -pady 3
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#grid .l1 -row 1 -column 0 -sticky ew -padx 3 -pady 3
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#grid .l2 -row 1 -column 1 -sticky ew -padx 3 -pady 3
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grid .sx -row 2 -column 0 -columnspan 2 -sticky ew
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grid .sy -row 3 -column 0 -columnspan 2 -sticky ew
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grid .btn -row 4 -column 0 -columnspan 2 -sticky ew
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}
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# This is called when mouse button 1 is pressed and moved in either of
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# the OpenGL windows.
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proc double::motion_event { width height x y } {
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.sx set [double::setXrot [expr 360.0 * $y / $height]]
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.sy set [double::setYrot [expr 360.0 * ($width - $x) / $width]]
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.o1 postredisplay
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.o2 postredisplay
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}
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# This is called when a slider is changed.
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proc double::setAngle {axis value} {
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global xAngle yAngle zAngle
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switch -exact $axis {
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x {double::setXrot $value
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double::setXrot $value}
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y {double::setYrot $value
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double::setYrot $value}
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}
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.o1 postredisplay
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.o2 postredisplay
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}
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# Execution starts here!
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if { [info script] == $argv0 } {
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::double::setup
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}
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