[3330] | 1 | # -*- mode: tcl; indent-tabs-mode: nil -*- |
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[1925] | 2 | # ---------------------------------------------------------------------- |
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| 3 | # COMPONENT: video - viewing movies |
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| 4 | # |
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| 5 | # ====================================================================== |
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| 6 | # AUTHOR: Michael McLennan, Purdue University |
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[3177] | 7 | # Copyright (c) 2004-2012 HUBzero Foundation, LLC |
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[1925] | 8 | # |
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| 9 | # See the file "license.terms" for information on usage and redistribution of |
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| 10 | # this file, and for a DISCLAIMER OF ALL WARRANTIES. |
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| 11 | # ====================================================================== |
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| 12 | |
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| 13 | package require Itk |
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| 14 | package require BLT |
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| 15 | package require Img |
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| 16 | package require Rappture |
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| 17 | package require RapptureGUI |
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| 18 | |
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[2035] | 19 | option add *Video.width -1 widgetDefault |
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| 20 | option add *Video.height -1 widgetDefault |
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[1925] | 21 | option add *Video.foreground black widgetDefault |
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| 22 | option add *Video.controlBackground gray widgetDefault |
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| 23 | option add *Video.font \ |
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| 24 | -*-helvetica-medium-r-normal-*-12-* widgetDefault |
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| 25 | |
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| 26 | itcl::class Rappture::VideoScreen { |
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| 27 | inherit itk::Widget |
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| 28 | |
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| 29 | itk_option define -width width Width -1 |
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| 30 | itk_option define -height height Height -1 |
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[2023] | 31 | itk_option define -fileopen fileopen Fileopen "" |
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[1925] | 32 | |
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| 33 | constructor { args } { |
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| 34 | # defined below |
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| 35 | } |
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| 36 | destructor { |
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| 37 | # defined below |
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| 38 | } |
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| 39 | |
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| 40 | public method load {type data} |
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| 41 | public method loadcb {args} |
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| 42 | public method video {args} |
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| 43 | public method query {type} |
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| 44 | |
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| 45 | protected method Play {} |
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| 46 | protected method Seek {n} |
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| 47 | protected method fixSize {} |
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| 48 | protected method Upload {args} |
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[1979] | 49 | protected method eventually {args} |
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[1925] | 50 | |
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[1979] | 51 | private method togglePtrCtrl {pbvar} |
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| 52 | private method whatPtrCtrl {} |
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| 53 | private method togglePtrBind {pbvar} |
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[1925] | 54 | |
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[1979] | 55 | # drawing tools |
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| 56 | private method Rubberband {status win x y} |
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| 57 | private method updateMeasurements {} |
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| 58 | private method Measure {status win x y} |
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| 59 | private method Particle {status win x y} |
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| 60 | private method Trajectory {args} |
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| 61 | private method calculateTrajectory {args} |
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| 62 | private method writeText {x y text color tags width} |
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[2028] | 63 | private method clearDrawings {} |
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[1979] | 64 | |
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| 65 | # video dial tools |
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| 66 | private method toggleloop {} |
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| 67 | |
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[1925] | 68 | private common _settings |
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[1979] | 69 | private common _pendings |
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[2028] | 70 | private common _pbvars |
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| 71 | private common _counters |
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[1925] | 72 | |
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[2035] | 73 | private variable _width -1 ;# width of the movie |
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| 74 | private variable _height -1 ;# height of the movie |
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[1925] | 75 | private variable _movie "" ;# movie we grab images from |
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| 76 | private variable _lastFrame 0 ;# last frame in the movie |
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| 77 | private variable _imh "" ;# current image being displayed |
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| 78 | private variable _id "" ;# id of the next play command from after |
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| 79 | private variable _framerate 30 ;# video frame rate |
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| 80 | private variable _mspf 7 ;# milliseconds per frame wait time |
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[1979] | 81 | private variable _ofrd 19 ;# observed frame retrieval delay of |
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| 82 | ;# underlying c lib in milliseconds |
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| 83 | private variable _delay 0 ;# milliseconds between play calls |
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| 84 | private variable _nextframe 0 ;# |
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| 85 | |
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[2028] | 86 | private variable _px2dist 0 ;# conversion for pixels to user specified distance |
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[1979] | 87 | private variable _particles "" ;# list of particles |
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[2028] | 88 | private variable _measurements "" ;# list of all measurement lines |
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[1979] | 89 | private variable _obj "" ;# temp var holding the last created object |
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[1925] | 90 | } |
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| 91 | |
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[1979] | 92 | |
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[1925] | 93 | itk::usual VideoScreen { |
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| 94 | keep -background -foreground -cursor -font |
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| 95 | keep -plotbackground -plotforeground |
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| 96 | } |
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| 97 | |
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| 98 | # ---------------------------------------------------------------------- |
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| 99 | # CONSTRUCTOR |
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| 100 | # ---------------------------------------------------------------------- |
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| 101 | itcl::body Rappture::VideoScreen::constructor {args} { |
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| 102 | |
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| 103 | array set _settings [subst { |
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[2028] | 104 | framenum 0 |
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| 105 | loop 0 |
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| 106 | play 0 |
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| 107 | speed 1 |
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[1925] | 108 | }] |
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| 109 | |
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[2028] | 110 | array set _pendings { |
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[1979] | 111 | seek 0 |
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| 112 | play 0 |
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[2028] | 113 | } |
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[1979] | 114 | |
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[2028] | 115 | array set _counters { |
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| 116 | particle 0 |
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| 117 | measure 0 |
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| 118 | } |
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[1979] | 119 | |
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[1925] | 120 | # Create flow controls... |
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| 121 | |
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| 122 | itk_component add main { |
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[2035] | 123 | canvas $itk_interior.main |
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[1925] | 124 | } { |
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| 125 | usual |
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| 126 | rename -background -controlbackground controlBackground Background |
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| 127 | } |
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| 128 | bind $itk_component(main) <Configure> [itcl::code $this fixSize] |
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| 129 | |
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[2035] | 130 | # setup the image display |
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[2023] | 131 | # hold the video frames in an image on the canvas |
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| 132 | set _imh [image create photo] |
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| 133 | |
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[2035] | 134 | $itk_component(main) create image 0 0 \ |
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| 135 | -anchor center \ |
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| 136 | -image ${_imh} \ |
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| 137 | -tags videoframe |
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| 138 | |
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[1925] | 139 | # setup movie controls |
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| 140 | itk_component add moviecontrols { |
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| 141 | frame $itk_interior.moviecontrols |
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| 142 | } { |
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| 143 | usual |
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| 144 | rename -background -controlbackground controlBackground Background |
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| 145 | } |
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| 146 | |
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[1979] | 147 | # setup frame number frame |
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| 148 | itk_component add frnumfr { |
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| 149 | frame $itk_component(moviecontrols).frnumfr |
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| 150 | } { |
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| 151 | usual |
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| 152 | rename -background -controlbackground controlBackground Background |
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| 153 | } |
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| 154 | |
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| 155 | set imagesDir [file join $RapptureGUI::library scripts images] |
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| 156 | |
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[2023] | 157 | # ==== fileopen ==== |
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| 158 | itk_component add fileopen { |
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| 159 | button $itk_component(moviecontrols).fileopen \ |
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| 160 | -borderwidth 1 -padx 1 -pady 1 \ |
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| 161 | -image [Rappture::icon upload] \ |
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| 162 | -command [itcl::code $this loadcb] |
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| 163 | } { |
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| 164 | usual |
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| 165 | } |
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| 166 | Rappture::Tooltip::for $itk_component(fileopen) \ |
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| 167 | "Open file" |
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[1979] | 168 | |
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| 169 | # ==== measuring tool ==== |
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| 170 | set measImg [image create photo -file [file join $imagesDir "line_darrow_green.png"]] |
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| 171 | itk_component add measure { |
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| 172 | Rappture::PushButton $itk_component(moviecontrols).measurepb \ |
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| 173 | -onimage $measImg \ |
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| 174 | -offimage $measImg \ |
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[2028] | 175 | -disabledimage $measImg \ |
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| 176 | -command [itcl::code $this togglePtrCtrl "measure"] \ |
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| 177 | -variable [itcl::scope _pbvars(measure)] |
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[1979] | 178 | } { |
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| 179 | usual |
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| 180 | } |
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[2028] | 181 | $itk_component(measure) disable |
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[1979] | 182 | Rappture::Tooltip::for $itk_component(measure) \ |
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| 183 | "Measure the distance of a structure" |
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| 184 | |
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| 185 | # ==== particle mark tool ==== |
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| 186 | set particleImg [image create photo -file [file join $imagesDir "volume-on.gif"]] |
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| 187 | itk_component add particle { |
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| 188 | Rappture::PushButton $itk_component(moviecontrols).particlepb \ |
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[2028] | 189 | -onimage $particleImg \ |
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[1979] | 190 | -offimage $particleImg \ |
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[2028] | 191 | -disabledimage $particleImg \ |
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| 192 | -command [itcl::code $this togglePtrCtrl "particle"] \ |
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| 193 | -variable [itcl::scope _pbvars(particle)] |
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[1979] | 194 | } { |
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| 195 | usual |
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| 196 | } |
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[2028] | 197 | $itk_component(particle) disable |
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[1979] | 198 | Rappture::Tooltip::for $itk_component(particle) \ |
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| 199 | "Mark the location of a particle to follow" |
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| 200 | |
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| 201 | |
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[1925] | 202 | # Rewind |
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| 203 | itk_component add rewind { |
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| 204 | button $itk_component(moviecontrols).rewind \ |
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| 205 | -borderwidth 1 -padx 1 -pady 1 \ |
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| 206 | -image [Rappture::icon video-rewind] \ |
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| 207 | -command [itcl::code $this video seek 0] |
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| 208 | } { |
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| 209 | usual |
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| 210 | ignore -borderwidth |
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| 211 | rename -highlightbackground -controlbackground controlBackground \ |
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| 212 | Background |
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| 213 | } |
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[2028] | 214 | $itk_component(rewind) configure -state disabled |
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[1925] | 215 | Rappture::Tooltip::for $itk_component(rewind) \ |
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| 216 | "Rewind movie" |
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| 217 | |
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| 218 | # Seek back |
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| 219 | itk_component add seekback { |
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| 220 | button $itk_component(moviecontrols).seekback \ |
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| 221 | -borderwidth 1 -padx 1 -pady 1 \ |
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| 222 | -image [Rappture::icon flow-rewind] \ |
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| 223 | -command [itcl::code $this video seek -1] |
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| 224 | } { |
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| 225 | usual |
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| 226 | ignore -borderwidth |
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| 227 | rename -highlightbackground -controlbackground controlBackground \ |
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| 228 | Background |
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| 229 | } |
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[2028] | 230 | $itk_component(seekback) configure -state disabled |
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[1925] | 231 | Rappture::Tooltip::for $itk_component(rewind) \ |
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| 232 | "Seek backwards 1 frame" |
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| 233 | |
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| 234 | # Play |
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| 235 | itk_component add play { |
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| 236 | Rappture::PushButton $itk_component(moviecontrols).play \ |
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| 237 | -onimage [Rappture::icon flow-pause] \ |
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| 238 | -offimage [Rappture::icon flow-play] \ |
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[2028] | 239 | -disabledimage [Rappture::icon flow-play] \ |
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| 240 | -variable [itcl::scope _settings(play)] \ |
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[1925] | 241 | -command [itcl::code $this video play] |
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| 242 | } |
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[2028] | 243 | $itk_component(play) disable |
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[1925] | 244 | Rappture::Tooltip::for $itk_component(play) \ |
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| 245 | "Play/Pause movie" |
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| 246 | |
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| 247 | # Seek forward |
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| 248 | itk_component add seekforward { |
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| 249 | button $itk_component(moviecontrols).seekforward \ |
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| 250 | -borderwidth 1 -padx 1 -pady 1 \ |
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| 251 | -image [Rappture::icon flow-forward] \ |
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| 252 | -command [itcl::code $this video seek +1] |
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| 253 | } { |
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| 254 | usual |
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| 255 | ignore -borderwidth |
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| 256 | rename -highlightbackground -controlbackground controlBackground \ |
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| 257 | Background |
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| 258 | } |
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[2028] | 259 | $itk_component(seekforward) configure -state disabled |
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[1925] | 260 | Rappture::Tooltip::for $itk_component(seekforward) \ |
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| 261 | "Seek forward 1 frame" |
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| 262 | |
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| 263 | # Loop |
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| 264 | itk_component add loop { |
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| 265 | Rappture::PushButton $itk_component(moviecontrols).loop \ |
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| 266 | -onimage [Rappture::icon flow-loop] \ |
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| 267 | -offimage [Rappture::icon flow-loop] \ |
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[2028] | 268 | -disabledimage [Rappture::icon flow-loop] \ |
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| 269 | -variable [itcl::scope _settings(loop)] \ |
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[1979] | 270 | -command [itcl::code $this toggleloop] |
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[1925] | 271 | } |
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[2028] | 272 | $itk_component(loop) disable |
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[1925] | 273 | Rappture::Tooltip::for $itk_component(loop) \ |
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| 274 | "Play continuously between marked sections" |
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| 275 | |
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| 276 | itk_component add dial { |
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[2023] | 277 | frame $itk_interior.dial |
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| 278 | } { |
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| 279 | usual |
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| 280 | rename -background -controlbackground controlBackground Background |
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| 281 | } |
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| 282 | |
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| 283 | # Video Dial Major |
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| 284 | itk_component add dialmajor { |
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| 285 | Rappture::Videodial1 $itk_component(dial).dialmajor \ |
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[1925] | 286 | -length 10 -valuewidth 0 -valuepadding 0 -padding 6 \ |
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| 287 | -linecolor "" -activelinecolor "" \ |
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[1928] | 288 | -min 0 -max 1 \ |
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[2028] | 289 | -variable [itcl::scope _settings(framenum)] \ |
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[1979] | 290 | -dialoutlinecolor black \ |
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[1925] | 291 | -knobimage [Rappture::icon knob2] -knobposition center@middle |
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| 292 | } { |
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| 293 | usual |
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| 294 | ignore -dialprogresscolor |
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| 295 | rename -background -controlbackground controlBackground Background |
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| 296 | } |
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[2023] | 297 | $itk_component(dialmajor) current 0 |
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| 298 | bind $itk_component(dialmajor) <<Value>> [itcl::code $this video update] |
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[1925] | 299 | |
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[2023] | 300 | # Video Dial Minor |
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| 301 | itk_component add dialminor { |
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| 302 | Rappture::Videodial2 $itk_component(dial).dialminor \ |
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| 303 | -padding 0 \ |
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| 304 | -min 0 -max 1 \ |
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| 305 | -minortick 1 -majortick 5 \ |
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[2028] | 306 | -variable [itcl::scope _settings(framenum)] \ |
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[2023] | 307 | -dialoutlinecolor black |
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| 308 | } { |
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| 309 | usual |
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| 310 | rename -background -controlbackground controlBackground Background |
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| 311 | } |
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| 312 | $itk_component(dialminor) current 0 |
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| 313 | bind $itk_component(dialminor) <<Value>> [itcl::code $this video update] |
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| 314 | |
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[2028] | 315 | set fg [option get $itk_component(hull) font Font] |
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| 316 | |
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[1925] | 317 | itk_component add framenumlabel { |
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[2035] | 318 | label $itk_component(frnumfr).framenuml -text "Frame:" -font "arial 9" \ |
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[1925] | 319 | -highlightthickness 0 |
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| 320 | } { |
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| 321 | usual |
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| 322 | ignore -highlightthickness |
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| 323 | rename -background -controlbackground controlBackground Background |
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| 324 | } |
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| 325 | |
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| 326 | # Current Frame Number |
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| 327 | itk_component add framenum { |
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[1979] | 328 | label $itk_component(frnumfr).framenum \ |
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[1925] | 329 | -background white -font "arial 9" \ |
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[2028] | 330 | -textvariable [itcl::scope _settings(framenum)] |
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[1925] | 331 | } { |
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| 332 | usual |
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| 333 | ignore -highlightthickness |
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| 334 | rename -background -controlbackground controlBackground Background |
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| 335 | } |
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| 336 | Rappture::Tooltip::for $itk_component(framenum) \ |
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| 337 | "Current frame number" |
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| 338 | |
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[1979] | 339 | |
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| 340 | pack $itk_component(framenumlabel) -side left |
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| 341 | pack $itk_component(framenum) -side right |
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| 342 | |
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| 343 | |
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[1925] | 344 | itk_component add speedlabel { |
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| 345 | label $itk_component(moviecontrols).speedl -text "Speed:" -font $fg \ |
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| 346 | -highlightthickness 0 |
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| 347 | } { |
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| 348 | usual |
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| 349 | ignore -highlightthickness |
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| 350 | rename -background -controlbackground controlBackground Background |
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| 351 | } |
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| 352 | |
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| 353 | # Speed |
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| 354 | itk_component add speed { |
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[2023] | 355 | Rappture::Videospeed $itk_component(moviecontrols).speed \ |
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| 356 | -min 0 -max 1 -width 4 -font "arial 9" -factor 2 |
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[1925] | 357 | } { |
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| 358 | usual |
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| 359 | ignore -highlightthickness |
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| 360 | rename -background -controlbackground controlBackground Background |
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| 361 | } |
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| 362 | Rappture::Tooltip::for $itk_component(speed) \ |
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| 363 | "Change speed of movie" |
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| 364 | |
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[2023] | 365 | $itk_component(speed) value 0.25 |
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[1925] | 366 | bind $itk_component(speed) <<Value>> [itcl::code $this video speed] |
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| 367 | |
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| 368 | |
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[2023] | 369 | blt::table $itk_component(dial) \ |
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| 370 | 0,0 $itk_component(dialmajor) -fill x \ |
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| 371 | 1,0 $itk_component(dialminor) -fill x |
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| 372 | |
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[1925] | 373 | blt::table $itk_component(moviecontrols) \ |
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[2023] | 374 | 0,0 $itk_component(fileopen) -padx {2 0} \ |
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| 375 | 0,1 $itk_component(measure) -padx {4 0} \ |
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| 376 | 0,2 $itk_component(particle) -padx {4 0} \ |
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[1979] | 377 | 0,5 $itk_component(dial) -fill x -padx {2 4} -rowspan 3 \ |
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| 378 | 1,0 $itk_component(rewind) -padx {2 0} \ |
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| 379 | 1,1 $itk_component(seekback) -padx {4 0} \ |
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| 380 | 1,2 $itk_component(play) -padx {4 0} \ |
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| 381 | 1,3 $itk_component(seekforward) -padx {4 0} \ |
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| 382 | 1,4 $itk_component(loop) -padx {4 0} \ |
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[3441] | 383 | 2,0 $itk_component(frnumfr) -padx {0 0} -cspan 3 \ |
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| 384 | 2,3 $itk_component(speed) -padx {2 0} -cspan 2 |
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[1925] | 385 | |
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| 386 | blt::table configure $itk_component(moviecontrols) c* -resize none |
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| 387 | blt::table configure $itk_component(moviecontrols) c5 -resize both |
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| 388 | blt::table configure $itk_component(moviecontrols) r0 -pady 1 |
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| 389 | |
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| 390 | |
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| 391 | blt::table $itk_interior \ |
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| 392 | 0,0 $itk_component(main) -fill both \ |
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| 393 | 1,0 $itk_component(moviecontrols) -fill x |
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| 394 | blt::table configure $itk_interior c* -resize both |
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| 395 | blt::table configure $itk_interior r0 -resize both |
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| 396 | blt::table configure $itk_interior r1 -resize none |
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| 397 | |
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| 398 | eval itk_initialize $args |
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[2035] | 399 | |
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| 400 | $itk_component(main) configure -background black |
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[1925] | 401 | } |
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| 402 | |
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| 403 | # ---------------------------------------------------------------------- |
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| 404 | # DESTRUCTOR |
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| 405 | # ---------------------------------------------------------------------- |
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| 406 | itcl::body Rappture::VideoScreen::destructor {} { |
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[2028] | 407 | array unset _settings * |
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| 408 | array unset _pendings * |
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| 409 | array unset _pbvars * |
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| 410 | array unset _counters * |
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| 411 | |
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| 412 | |
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[2035] | 413 | if {[info exists _imh] && ("" != ${_imh})} { |
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[2028] | 414 | image delete ${_imh} |
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| 415 | set _imh "" |
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[2023] | 416 | } |
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[2028] | 417 | |
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| 418 | if {[info exists measImg]} { |
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| 419 | image delete $measImg |
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| 420 | set measImg "" |
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| 421 | } |
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| 422 | |
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| 423 | if {[info exists particleImg]} { |
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| 424 | image delete $particleImg |
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| 425 | set particleImg "" |
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| 426 | } |
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| 427 | |
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| 428 | if {("" != [info commands ${_movie}])} { |
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| 429 | # clear the movie if it is still open |
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| 430 | ${_movie} release |
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| 431 | set _movie "" |
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| 432 | } |
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| 433 | |
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| 434 | clearDrawings |
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[1925] | 435 | } |
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| 436 | |
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| 437 | # ---------------------------------------------------------------------- |
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[2028] | 438 | # clearDrawings - delete all particle and measurement objects |
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| 439 | # ---------------------------------------------------------------------- |
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| 440 | itcl::body Rappture::VideoScreen::clearDrawings {} { |
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| 441 | |
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| 442 | # delete all previously placed particles |
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| 443 | set obj [lindex ${_particles} end] |
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| 444 | while {"" != [info commands $obj]} { |
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| 445 | itcl::delete object $obj |
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| 446 | set _particles [lreplace ${_particles} end end] |
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| 447 | if {[llength ${_particles}] == 0} { |
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| 448 | break |
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| 449 | } |
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| 450 | set obj [lindex ${_particles} end] |
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| 451 | } |
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| 452 | |
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| 453 | # delete all previously placed measurements |
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| 454 | set obj [lindex ${_measurements} end] |
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| 455 | while {"" != [info commands $obj]} { |
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| 456 | itcl::delete object $obj |
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| 457 | set _measurements [lreplace ${_measurements} end end] |
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| 458 | if {[llength ${_measurements}] == 0} { |
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| 459 | break |
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| 460 | } |
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| 461 | set obj [lindex ${_measurements} end] |
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| 462 | } |
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| 463 | } |
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| 464 | |
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| 465 | # ---------------------------------------------------------------------- |
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[1925] | 466 | # load - load a video file |
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| 467 | # type - type of data, "data" or "file" |
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| 468 | # data - what to load. |
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| 469 | # if type == "data", data is treated like binary data |
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| 470 | # if type == "file", data is treated like the name of a file |
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| 471 | # and is opened and then loaded. |
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| 472 | # ---------------------------------------------------------------------- |
---|
| 473 | itcl::body Rappture::VideoScreen::load {type data} { |
---|
| 474 | |
---|
[2035] | 475 | video stop |
---|
| 476 | |
---|
[1925] | 477 | # open the file |
---|
| 478 | set fname "" |
---|
| 479 | switch $type { |
---|
| 480 | "data" { |
---|
[2028] | 481 | if {"" == $data} { |
---|
| 482 | error "bad value \"$data\": data should be a movie" |
---|
| 483 | } |
---|
| 484 | |
---|
[1925] | 485 | set fname "/tmp/tmpVV[pid].video" |
---|
| 486 | set fid [open $fname "w"] |
---|
| 487 | fconfigure $fid -translation binary -encoding binary |
---|
| 488 | puts $fid $data |
---|
| 489 | close $fid |
---|
| 490 | set type "file" |
---|
| 491 | set data $fname |
---|
| 492 | } |
---|
[1928] | 493 | "file" { |
---|
[2028] | 494 | if {"" == $data} { |
---|
| 495 | error "bad value \"$data\": data should be a movie file path" |
---|
| 496 | } |
---|
[1925] | 497 | # do nothing |
---|
| 498 | } |
---|
| 499 | default { |
---|
| 500 | error "bad value: \"$type\": should be \"load \[data|file\] <data>\"" |
---|
| 501 | } |
---|
| 502 | } |
---|
| 503 | |
---|
[2028] | 504 | if {"file" == $type} { |
---|
| 505 | if {("" != [info commands ${_movie}])} { |
---|
| 506 | # compare the new file name to the name of the file |
---|
| 507 | # we already have open in our _movie object. |
---|
| 508 | # if they are the same, do not reopen the video. |
---|
| 509 | # if they are different, close the old movie |
---|
| 510 | # and clear out all old drawings from the canvas. |
---|
[2035] | 511 | set err [catch {${_movie} filename} filename] |
---|
[2028] | 512 | if {($err == 0)&& ($data == $filename)} { |
---|
| 513 | # video file already open, don't reopen it. |
---|
| 514 | return |
---|
| 515 | } else { |
---|
| 516 | # clear the old movie |
---|
| 517 | ${_movie} release |
---|
[2035] | 518 | set _width -1 |
---|
| 519 | set _height -1 |
---|
[2028] | 520 | |
---|
| 521 | # delete drawings objects from canvas |
---|
| 522 | clearDrawings |
---|
| 523 | } |
---|
| 524 | } |
---|
[2023] | 525 | } |
---|
| 526 | |
---|
[1925] | 527 | set _movie [Rappture::Video $type $data] |
---|
[2028] | 528 | if {"" != $fname} { |
---|
| 529 | file delete $fname |
---|
| 530 | } |
---|
[2035] | 531 | set _framerate [${_movie} framerate] |
---|
[2023] | 532 | video speed |
---|
[2035] | 533 | puts stderr "framerate: ${_framerate}" |
---|
[1925] | 534 | |
---|
[2035] | 535 | set _lastFrame [${_movie} get position end] |
---|
[1925] | 536 | |
---|
[1928] | 537 | # update the dial with video information |
---|
[2023] | 538 | $itk_component(dialmajor) configure -min 0 -max ${_lastFrame} |
---|
| 539 | $itk_component(dialminor) configure -min 0 -max ${_lastFrame} |
---|
[1928] | 540 | |
---|
[2028] | 541 | # turn on the buttons and dials |
---|
| 542 | $itk_component(measure) enable |
---|
| 543 | $itk_component(particle) enable |
---|
| 544 | $itk_component(rewind) configure -state normal |
---|
| 545 | $itk_component(seekback) configure -state normal |
---|
| 546 | $itk_component(play) enable |
---|
| 547 | $itk_component(seekforward) configure -state normal |
---|
| 548 | $itk_component(loop) enable |
---|
| 549 | |
---|
[2029] | 550 | # make sure looping is off |
---|
| 551 | set _settings(loop) 0 |
---|
| 552 | $itk_component(dialminor) loop disable |
---|
| 553 | |
---|
[1925] | 554 | fixSize |
---|
[2035] | 555 | |
---|
| 556 | # goto the first frame |
---|
| 557 | # update the dial and framenum widgets |
---|
| 558 | video seek 0 |
---|
| 559 | set _settings(framenum) 0 |
---|
[1925] | 560 | } |
---|
| 561 | |
---|
| 562 | # ---------------------------------------------------------------------- |
---|
| 563 | # loadcb - load callback |
---|
| 564 | # ---------------------------------------------------------------------- |
---|
| 565 | itcl::body Rappture::VideoScreen::loadcb {args} { |
---|
[2024] | 566 | video stop |
---|
[1925] | 567 | Rappture::filexfer::upload {piv tool} {id label desc} [itcl::code $this Upload] |
---|
| 568 | } |
---|
| 569 | |
---|
| 570 | # ---------------------------------------------------------------------- |
---|
| 571 | # Upload - |
---|
| 572 | # ---------------------------------------------------------------------- |
---|
| 573 | itcl::body Rappture::VideoScreen::Upload {args} { |
---|
| 574 | array set data $args |
---|
[2024] | 575 | video stop |
---|
[1925] | 576 | |
---|
| 577 | if {[info exists data(error)]} { |
---|
| 578 | Rappture::Tooltip::cue $itk::component(main) $data(error) |
---|
[1979] | 579 | puts stderr $data(error) |
---|
[1925] | 580 | } |
---|
| 581 | |
---|
| 582 | if {[info exists data(path)] && [info exists data(data)]} { |
---|
| 583 | Rappture::Tooltip::cue hide ;# take down note about the popup window |
---|
| 584 | |
---|
| 585 | # load data |
---|
| 586 | load "data" $data(data) |
---|
| 587 | } |
---|
| 588 | |
---|
| 589 | } |
---|
| 590 | |
---|
| 591 | |
---|
| 592 | # ---------------------------------------------------------------------- |
---|
| 593 | # fixSize |
---|
| 594 | # ---------------------------------------------------------------------- |
---|
| 595 | itcl::body Rappture::VideoScreen::fixSize {} { |
---|
| 596 | |
---|
| 597 | if {[string compare "" ${_movie}] == 0} { |
---|
| 598 | return |
---|
| 599 | } |
---|
| 600 | |
---|
[2067] | 601 | if {![winfo ismapped $itk_component(hull)]} { |
---|
| 602 | return |
---|
| 603 | } |
---|
| 604 | |
---|
[2035] | 605 | # get dimensions for the new image |
---|
| 606 | # adjust the aspect ratio, if necessary |
---|
[1925] | 607 | |
---|
[2035] | 608 | puts stderr "aspect ratio: [query aspectratio]" |
---|
[2023] | 609 | |
---|
[2035] | 610 | foreach {w h} [query dimensions] break |
---|
| 611 | foreach {num den} [query aspectratio] break |
---|
| 612 | |
---|
| 613 | if {[expr 1.0*$w/$h] != [expr 1.0*$num/$den]} { |
---|
| 614 | # we need to adjust the frame height and width |
---|
| 615 | # to keep the correct aspect ratio |
---|
| 616 | # hold the height constant, |
---|
| 617 | # adjust the width as close as we can |
---|
| 618 | # to the correct aspect ratio |
---|
| 619 | set w [expr int(1.0*$num/$den*$h)] |
---|
| 620 | } |
---|
| 621 | |
---|
| 622 | if {-1 == ${_width}} { |
---|
| 623 | set _width $w |
---|
| 624 | } |
---|
| 625 | if {-1 == ${_height}} { |
---|
| 626 | set _height $h |
---|
| 627 | } |
---|
| 628 | |
---|
[1925] | 629 | # get an image with the new size |
---|
[2035] | 630 | ${_imh} blank |
---|
| 631 | ${_imh} configure -width 1 -height 1 |
---|
| 632 | ${_imh} configure -width 0 -height 0 |
---|
[1925] | 633 | ${_imh} put [${_movie} get image ${_width} ${_height}] |
---|
| 634 | |
---|
[2035] | 635 | # place the image in the center of the canvas |
---|
| 636 | set ccw [winfo width $itk_component(main)] |
---|
| 637 | set cch [winfo height $itk_component(main)] |
---|
| 638 | $itk_component(main) coords videoframe [expr $ccw/2.0] [expr $cch/2.0] |
---|
| 639 | |
---|
| 640 | puts stderr "----------------------------" |
---|
| 641 | puts stderr "adjusted = $w $h" |
---|
| 642 | puts stderr "data = ${_width} ${_height}" |
---|
| 643 | puts stderr "image = [image width ${_imh}] [image height ${_imh}]" |
---|
| 644 | foreach {x0 y0 x1 y1} [$itk_component(main) bbox videoframe] break |
---|
| 645 | puts stderr "bbox = $x0 $y0 $x1 $y1" |
---|
| 646 | puts stderr "ccw cch = [expr $ccw/2.0] [expr $cch/2.0]" |
---|
| 647 | puts stderr "main = [winfo width $itk_component(main)] [winfo height $itk_component(main)]" |
---|
| 648 | puts stderr "hull = [winfo width $itk_component(hull)] [winfo height $itk_component(hull)]" |
---|
[1925] | 649 | } |
---|
| 650 | |
---|
| 651 | # ---------------------------------------------------------------------- |
---|
| 652 | # video - play, stop, rewind, fastforward the video |
---|
| 653 | # ---------------------------------------------------------------------- |
---|
| 654 | itcl::body Rappture::VideoScreen::video { args } { |
---|
| 655 | set option [lindex $args 0] |
---|
| 656 | switch -- $option { |
---|
| 657 | "play" { |
---|
[2028] | 658 | if {$_settings(play) == 1} { |
---|
[1979] | 659 | eventually play |
---|
[1925] | 660 | } else { |
---|
| 661 | # pause/stop |
---|
| 662 | after cancel $_id |
---|
[1979] | 663 | set _pendings(play) 0 |
---|
[2028] | 664 | set _settings(play) 0 |
---|
[1925] | 665 | } |
---|
| 666 | } |
---|
| 667 | "seek" { |
---|
| 668 | Seek [lreplace $args 0 0] |
---|
| 669 | } |
---|
| 670 | "stop" { |
---|
| 671 | after cancel $_id |
---|
[2028] | 672 | set _settings(play) 0 |
---|
[1925] | 673 | } |
---|
| 674 | "speed" { |
---|
[1979] | 675 | set speed [$itk_component(speed) value] |
---|
[2023] | 676 | set _mspf [expr round(((1.0/${_framerate})*1000)/$speed)] |
---|
[1979] | 677 | set _delay [expr {${_mspf} - ${_ofrd}}] |
---|
| 678 | puts stderr "_mspf = ${_mspf} | $speed | ${_ofrd} | ${_delay}" |
---|
[1925] | 679 | } |
---|
[1979] | 680 | "update" { |
---|
[2028] | 681 | eventually seek [expr round($_settings(framenum))] |
---|
| 682 | # Seek [expr round($_settings(framenum))] |
---|
[1979] | 683 | } |
---|
[1925] | 684 | default { |
---|
| 685 | error "bad option \"$option\": should be play, stop, toggle, position, or reset." |
---|
| 686 | } |
---|
| 687 | } |
---|
| 688 | } |
---|
| 689 | |
---|
| 690 | # ---------------------------------------------------------------------- |
---|
| 691 | # query - query things about the video |
---|
| 692 | # |
---|
| 693 | # dimensions - returns width and height as a list |
---|
| 694 | # frames - number of frames in video (last frame + 1) |
---|
| 695 | # framenum - current position |
---|
| 696 | # ---------------------------------------------------------------------- |
---|
| 697 | itcl::body Rappture::VideoScreen::query { type } { |
---|
| 698 | set ret "" |
---|
| 699 | switch -- $type { |
---|
[2035] | 700 | "aspectratio" { |
---|
| 701 | set ret [${_movie} aspect display] |
---|
| 702 | } |
---|
[1925] | 703 | "dimensions" { |
---|
| 704 | set ret [${_movie} size] |
---|
| 705 | } |
---|
| 706 | "frames" { |
---|
| 707 | set ret [expr [${_movie} get position end] + 1] |
---|
| 708 | } |
---|
| 709 | "framenum" { |
---|
| 710 | set ret [${_movie} get position cur] |
---|
| 711 | } |
---|
| 712 | default { |
---|
| 713 | error "bad type \"$type\": should be dimensions, frames, framenum." |
---|
| 714 | } |
---|
| 715 | } |
---|
| 716 | return $ret |
---|
| 717 | } |
---|
| 718 | |
---|
| 719 | # ---------------------------------------------------------------------- |
---|
| 720 | # Play - get the next video frame |
---|
| 721 | # ---------------------------------------------------------------------- |
---|
| 722 | itcl::body Rappture::VideoScreen::Play {} { |
---|
| 723 | |
---|
[2023] | 724 | set cur ${_nextframe} |
---|
| 725 | |
---|
[1979] | 726 | # time how long it takes to retrieve the next frame |
---|
| 727 | set _ofrd [time { |
---|
[2023] | 728 | # use seek instead of next fxn incase the ${_nextframe} is |
---|
| 729 | # not the current frame+1. this happens when we skip frames |
---|
| 730 | # because the underlying c lib is too slow at reading. |
---|
[2035] | 731 | ${_movie} seek $cur |
---|
| 732 | ${_imh} put [${_movie} get image ${_width} ${_height}] |
---|
[1979] | 733 | } 1] |
---|
| 734 | regexp {(\d+\.?\d*) microseconds per iteration} ${_ofrd} match _ofrd |
---|
| 735 | set _ofrd [expr {round(${_ofrd}/1000)}] |
---|
[1925] | 736 | |
---|
[1979] | 737 | # calculate the delay we shoud see |
---|
| 738 | # between frames being placed on screen |
---|
| 739 | # taking into account the cost of retrieving the frame |
---|
| 740 | set _delay [expr {${_mspf}-${_ofrd}}] |
---|
| 741 | if {0 > ${_delay}} { |
---|
| 742 | set _delay 0 |
---|
| 743 | } |
---|
| 744 | |
---|
[2035] | 745 | set cur [${_movie} get position cur] |
---|
[1925] | 746 | |
---|
| 747 | # update the dial and framenum widgets |
---|
[2028] | 748 | set _settings(framenum) $cur |
---|
[1925] | 749 | |
---|
| 750 | |
---|
[1979] | 751 | # no play cmds pending |
---|
| 752 | set _pendings(play) 0 |
---|
| 753 | |
---|
| 754 | # if looping is turned on and markers setup, |
---|
| 755 | # then loop back to loopstart when cur hits loopend |
---|
[2028] | 756 | if {$_settings(loop)} { |
---|
[2023] | 757 | if {$cur == [$itk_component(dialminor) mark position loopend]} { |
---|
| 758 | Seek [$itk_component(dialminor) mark position loopstart] |
---|
[1979] | 759 | } |
---|
| 760 | } |
---|
| 761 | |
---|
[1925] | 762 | # schedule the next frame to be displayed |
---|
| 763 | if {$cur < ${_lastFrame}} { |
---|
[1979] | 764 | set _id [after ${_delay} [itcl::code $this eventually play]] |
---|
[2023] | 765 | } else { |
---|
| 766 | video stop |
---|
[1925] | 767 | } |
---|
[1979] | 768 | |
---|
[2023] | 769 | event generate $itk_component(hull) <<Frame>> |
---|
[1925] | 770 | } |
---|
| 771 | |
---|
| 772 | |
---|
| 773 | # ---------------------------------------------------------------------- |
---|
[1979] | 774 | # Seek - go to a frame in the video |
---|
[1925] | 775 | # Seek +5 |
---|
| 776 | # Seek -5 |
---|
| 777 | # Seek 35 |
---|
| 778 | # ---------------------------------------------------------------------- |
---|
| 779 | itcl::body Rappture::VideoScreen::Seek {args} { |
---|
| 780 | set val [lindex $args 0] |
---|
| 781 | if {"" == $val} { |
---|
| 782 | error "bad value: \"$val\": should be \"seek value\"" |
---|
| 783 | } |
---|
[2035] | 784 | set cur [${_movie} get position cur] |
---|
[1979] | 785 | if {[string compare $cur $val] == 0} { |
---|
| 786 | # already at the frame to seek to |
---|
[2028] | 787 | set _pendings(seek) 0 |
---|
[1979] | 788 | return |
---|
| 789 | } |
---|
[1925] | 790 | ${_movie} seek $val |
---|
| 791 | ${_imh} put [${_movie} get image ${_width} ${_height}] |
---|
[1979] | 792 | |
---|
| 793 | # update the dial and framenum widgets |
---|
[2035] | 794 | set _settings(framenum) [${_movie} get position cur] |
---|
[1979] | 795 | event generate $itk_component(main) <<Frame>> |
---|
| 796 | |
---|
[2028] | 797 | # removing pending |
---|
| 798 | set _pendings(seek) 0 |
---|
[1925] | 799 | } |
---|
| 800 | |
---|
[1979] | 801 | |
---|
[1925] | 802 | # ---------------------------------------------------------------------- |
---|
[1979] | 803 | # eventually - |
---|
| 804 | # seek |
---|
| 805 | # play |
---|
| 806 | # ---------------------------------------------------------------------- |
---|
| 807 | itcl::body Rappture::VideoScreen::eventually {args} { |
---|
| 808 | set option [lindex $args 0] |
---|
| 809 | switch -- $option { |
---|
| 810 | "seek" { |
---|
[2028] | 811 | if {0 == $_pendings(seek)} { |
---|
[1979] | 812 | # no seek pending, schedule one |
---|
[2028] | 813 | set _pendings(seek) 1 |
---|
[1979] | 814 | after idle [itcl::code $this Seek [lindex $args 1]] |
---|
| 815 | } else { |
---|
| 816 | # there is a seek pending, update its seek value |
---|
| 817 | } |
---|
| 818 | } |
---|
| 819 | "play" { |
---|
| 820 | if {0 == $_pendings(play)} { |
---|
| 821 | # no play pending schedule one |
---|
| 822 | set _pendings(play) 1 |
---|
[2035] | 823 | set _nextframe [expr {[${_movie} get position cur] + 1}] |
---|
[1979] | 824 | after idle [itcl::code $this Play] |
---|
| 825 | } else { |
---|
| 826 | # there is a play pending, update its frame value |
---|
| 827 | incr _nextframe |
---|
| 828 | } |
---|
| 829 | } |
---|
| 830 | default { |
---|
| 831 | } |
---|
| 832 | } |
---|
| 833 | } |
---|
| 834 | |
---|
| 835 | |
---|
| 836 | # ---------------------------------------------------------------------- |
---|
| 837 | # togglePtrCtrl - choose pointer mode: |
---|
| 838 | # rectangle, measure, particlemark |
---|
| 839 | # ---------------------------------------------------------------------- |
---|
[2028] | 840 | itcl::body Rappture::VideoScreen::togglePtrCtrl {tool} { |
---|
[1979] | 841 | |
---|
[2028] | 842 | if {[info exists _pbvars($tool)] == 0} { |
---|
| 843 | return |
---|
| 844 | } |
---|
| 845 | |
---|
| 846 | if {$_pbvars($tool) == 1} { |
---|
[1979] | 847 | # unpush previously pushed buttons |
---|
[2028] | 848 | foreach pbv [array names _pbvars] { |
---|
| 849 | if {[string compare $tool $pbv] != 0} { |
---|
| 850 | set _pbvars($pbv) 0 |
---|
[1979] | 851 | } |
---|
| 852 | } |
---|
| 853 | } |
---|
[2028] | 854 | togglePtrBind $tool |
---|
[1979] | 855 | } |
---|
| 856 | |
---|
| 857 | |
---|
| 858 | # ---------------------------------------------------------------------- |
---|
| 859 | # whatPtrCtrl - figure out the current pointer mode: |
---|
| 860 | # rectangle, measure, particlemark |
---|
| 861 | # ---------------------------------------------------------------------- |
---|
| 862 | itcl::body Rappture::VideoScreen::whatPtrCtrl {} { |
---|
[2028] | 863 | foreach pbv [array names _pbvars] { |
---|
| 864 | if {$_pbvars($pbv) != 0} { |
---|
[1979] | 865 | return $pbv |
---|
| 866 | } |
---|
| 867 | } |
---|
| 868 | } |
---|
| 869 | |
---|
| 870 | |
---|
| 871 | # ---------------------------------------------------------------------- |
---|
| 872 | # togglePtrBind - update the bindings based on pointer controls |
---|
| 873 | # ---------------------------------------------------------------------- |
---|
| 874 | itcl::body Rappture::VideoScreen::togglePtrBind {pbvar} { |
---|
| 875 | |
---|
| 876 | if {[string compare $pbvar current] == 0} { |
---|
| 877 | set pbvar [whatPtrCtrl] |
---|
| 878 | } |
---|
| 879 | |
---|
[2028] | 880 | if {[string compare $pbvar rectangle] == 0} { |
---|
[1979] | 881 | |
---|
| 882 | # Bindings for selecting rectangle |
---|
| 883 | $itk_component(main) configure -cursor "" |
---|
| 884 | |
---|
| 885 | bind $itk_component(main) <ButtonPress-1> \ |
---|
| 886 | [itcl::code $this Rubberband new %W %x %y] |
---|
| 887 | bind $itk_component(main) <B1-Motion> \ |
---|
| 888 | [itcl::code $this Rubberband drag %W %x %y] |
---|
| 889 | bind $itk_component(main) <ButtonRelease-1> \ |
---|
| 890 | [itcl::code $this Rubberband release %W %x %y] |
---|
| 891 | |
---|
[2028] | 892 | } elseif {[string compare $pbvar measure] == 0} { |
---|
[1979] | 893 | |
---|
| 894 | # Bindings for measuring distance |
---|
| 895 | $itk_component(main) configure -cursor "" |
---|
| 896 | |
---|
| 897 | bind $itk_component(main) <ButtonPress-1> \ |
---|
| 898 | [itcl::code $this Measure new %W %x %y] |
---|
| 899 | bind $itk_component(main) <B1-Motion> \ |
---|
| 900 | [itcl::code $this Measure drag %W %x %y] |
---|
| 901 | bind $itk_component(main) <ButtonRelease-1> \ |
---|
| 902 | [itcl::code $this Measure release %W %x %y] |
---|
| 903 | |
---|
[2028] | 904 | } elseif {[string compare $pbvar particle] == 0} { |
---|
[1979] | 905 | |
---|
| 906 | # Bindings for marking particle locations |
---|
| 907 | $itk_component(main) configure -cursor "" |
---|
| 908 | |
---|
| 909 | bind $itk_component(main) <ButtonPress-1> \ |
---|
| 910 | [itcl::code $this Particle new %W %x %y] |
---|
| 911 | bind $itk_component(main) <B1-Motion> "" |
---|
| 912 | bind $itk_component(main) <ButtonRelease-1> "" |
---|
| 913 | |
---|
| 914 | |
---|
| 915 | } elseif {[string compare $pbvar object] == 0} { |
---|
| 916 | |
---|
| 917 | # Bindings for interacting with objects |
---|
| 918 | $itk_component(main) configure -cursor hand2 |
---|
| 919 | |
---|
| 920 | bind $itk_component(main) <ButtonPress-1> { } |
---|
| 921 | bind $itk_component(main) <B1-Motion> { } |
---|
| 922 | bind $itk_component(main) <ButtonRelease-1> { } |
---|
| 923 | |
---|
| 924 | } else { |
---|
| 925 | |
---|
| 926 | # invalid pointer mode |
---|
| 927 | |
---|
| 928 | } |
---|
| 929 | } |
---|
| 930 | |
---|
| 931 | |
---|
| 932 | |
---|
| 933 | |
---|
| 934 | |
---|
| 935 | ###### DRAWING TOOLS ##### |
---|
| 936 | |
---|
| 937 | |
---|
| 938 | |
---|
| 939 | |
---|
| 940 | |
---|
| 941 | # ---------------------------------------------------------------------- |
---|
| 942 | # Rubberband - draw a rubberband around something in the canvas |
---|
| 943 | # ---------------------------------------------------------------------- |
---|
| 944 | itcl::body Rappture::VideoScreen::Rubberband {status win x y} { |
---|
| 945 | switch -- $status { |
---|
| 946 | "new" { |
---|
| 947 | $win delete "rubbershape" |
---|
| 948 | set _x0 $x |
---|
| 949 | set _y0 $y |
---|
| 950 | $win create rectangle \ |
---|
| 951 | $x $y $x $y -outline white -width 2 \ |
---|
| 952 | -tags "rubbershape" -dash {4 4} |
---|
| 953 | } |
---|
| 954 | "drag" { |
---|
| 955 | foreach { x0 y0 x1 y1 } [$win coords "rubbershape"] break |
---|
| 956 | |
---|
| 957 | if {$_x0 > $x} { |
---|
| 958 | # backward direction |
---|
| 959 | set x0 $x |
---|
| 960 | set x1 $_x0 |
---|
| 961 | } else { |
---|
| 962 | set x1 $x |
---|
| 963 | } |
---|
| 964 | |
---|
| 965 | if {$_y0 >= $y} { |
---|
| 966 | # backward direction |
---|
| 967 | set y0 $y |
---|
| 968 | set y1 $_y0 |
---|
| 969 | } else { |
---|
| 970 | set y1 $y |
---|
| 971 | } |
---|
| 972 | |
---|
| 973 | eval $win coords "rubbershape" [list $x0 $y0 $x1 $y1] |
---|
| 974 | } |
---|
| 975 | "release" { |
---|
| 976 | Rubberband drag $win $x $y |
---|
| 977 | } |
---|
| 978 | default { |
---|
| 979 | error "bad status \"$status\": should be new, drag, or release" |
---|
| 980 | } |
---|
| 981 | } |
---|
| 982 | } |
---|
| 983 | |
---|
| 984 | # ---------------------------------------------------------------------- |
---|
| 985 | # Measure - draw a line to measure something on the canvas, |
---|
| 986 | # when user releases the line, user is given the |
---|
| 987 | # calculated measurement. |
---|
| 988 | # ---------------------------------------------------------------------- |
---|
| 989 | itcl::body Rappture::VideoScreen::Measure {status win x y} { |
---|
| 990 | switch -- $status { |
---|
| 991 | "new" { |
---|
[2028] | 992 | set name "measure[incr _counters(measure)]" |
---|
[1979] | 993 | |
---|
| 994 | set _obj [Rappture::VideoDistance $itk_component(main).$name $name $win \ |
---|
| 995 | -fncallback [itcl::code $this query framenum] \ |
---|
| 996 | -bindentercb [itcl::code $this togglePtrBind object] \ |
---|
| 997 | -bindleavecb [itcl::code $this togglePtrBind current] \ |
---|
| 998 | -writetextcb [itcl::code $this writeText] \ |
---|
[2025] | 999 | -ondelete [itcl::code $itk_component(dialminor) mark remove $name] \ |
---|
| 1000 | -onframe [itcl::code $itk_component(dialminor) mark add $name] \ |
---|
[1979] | 1001 | -px2dist [itcl::scope _px2dist] \ |
---|
| 1002 | -units "m" \ |
---|
| 1003 | -color green \ |
---|
| 1004 | -bindings disable] |
---|
| 1005 | ${_obj} Coords $x $y $x $y |
---|
| 1006 | ${_obj} Show object |
---|
[2028] | 1007 | lappend _measurements ${_obj} |
---|
[1979] | 1008 | } |
---|
| 1009 | "drag" { |
---|
| 1010 | # FIXME: something wrong with the bindings, if the objects menu is |
---|
| 1011 | # open, and you click on the canvas off the menu, a "drag" |
---|
| 1012 | # or "release" call is made. need to figure out how to |
---|
| 1013 | # disable bindings while obj's menu is open. for now |
---|
| 1014 | # we set _obj to "" when we are finished creating it and |
---|
| 1015 | # check to see if it's valid when we do a drag or release |
---|
| 1016 | |
---|
| 1017 | if {"" == ${_obj}} { |
---|
| 1018 | return |
---|
| 1019 | } |
---|
| 1020 | |
---|
| 1021 | ${_obj} Coords [lreplace [${_obj} Coords] 2 3 $x $y] |
---|
| 1022 | } |
---|
| 1023 | "release" { |
---|
| 1024 | # if we enable ${_obj}'s bindings when we create it, |
---|
| 1025 | # probably never entered because the object's <Enter> |
---|
| 1026 | # bindings kick in before the window's release bindings do |
---|
| 1027 | |
---|
| 1028 | if {"" == ${_obj}} { |
---|
| 1029 | return |
---|
| 1030 | } |
---|
| 1031 | |
---|
| 1032 | Measure drag $win $x $y |
---|
| 1033 | |
---|
| 1034 | if {${_px2dist} == 0} { |
---|
| 1035 | ${_obj} Menu activate $x $y |
---|
| 1036 | } |
---|
| 1037 | ${_obj} configure -bindings enable |
---|
| 1038 | |
---|
| 1039 | set _obj "" |
---|
| 1040 | } |
---|
| 1041 | default { |
---|
| 1042 | error "bad status \"$status\": should be new, drag, or release" |
---|
| 1043 | } |
---|
| 1044 | } |
---|
| 1045 | } |
---|
| 1046 | |
---|
| 1047 | # ---------------------------------------------------------------------- |
---|
| 1048 | # Particle - mark a particle in the video, a new particle object is |
---|
| 1049 | # created from information like the name, which video |
---|
| 1050 | # frames it lives in, it's coords in the canvas in each |
---|
| 1051 | # frame, it's color... |
---|
| 1052 | # ---------------------------------------------------------------------- |
---|
| 1053 | itcl::body Rappture::VideoScreen::Particle {status win x y} { |
---|
| 1054 | switch -- $status { |
---|
| 1055 | "new" { |
---|
[2028] | 1056 | set name "particle[incr _counters(particle)]" |
---|
[1979] | 1057 | set _obj [Rappture::VideoParticle $itk_component(main).$name $name $win \ |
---|
| 1058 | -fncallback [itcl::code $this query framenum] \ |
---|
| 1059 | -bindentercb [itcl::code $this togglePtrBind object] \ |
---|
| 1060 | -bindleavecb [itcl::code $this togglePtrBind current] \ |
---|
| 1061 | -trajcallback [itcl::code $this Trajectory] \ |
---|
[2025] | 1062 | -ondelete [itcl::code $itk_component(dialminor) mark remove $name] \ |
---|
| 1063 | -onframe [itcl::code $itk_component(dialminor) mark add $name] \ |
---|
| 1064 | -framerange "0 ${_lastFrame}" \ |
---|
[1979] | 1065 | -halo 5 \ |
---|
| 1066 | -color green \ |
---|
| 1067 | -px2dist [itcl::scope _px2dist] \ |
---|
| 1068 | -units "m/s"] |
---|
| 1069 | ${_obj} Coords $x $y |
---|
| 1070 | ${_obj} Show object |
---|
[2025] | 1071 | #$itk_component(dialminor) mark add $name current |
---|
[1979] | 1072 | # bind $itk_component(hull) <<Frame>> [itcl::code $itk_component(main).$name UpdateFrame] |
---|
| 1073 | |
---|
[2025] | 1074 | # link the new particle to the last particle added, if it exists |
---|
| 1075 | set lastp [lindex ${_particles} end] |
---|
| 1076 | while {"" == [info commands $lastp]} { |
---|
| 1077 | set _particles [lreplace ${_particles} end end] |
---|
| 1078 | if {[llength ${_particles}] == 0} { |
---|
| 1079 | break |
---|
| 1080 | } |
---|
[1979] | 1081 | set lastp [lindex ${_particles} end] |
---|
[2025] | 1082 | } |
---|
| 1083 | if {"" != [info commands $lastp]} { |
---|
[1979] | 1084 | $lastp Link ${_obj} |
---|
| 1085 | } |
---|
| 1086 | |
---|
| 1087 | # add the particle to the list |
---|
| 1088 | lappend _particles ${_obj} |
---|
| 1089 | } |
---|
| 1090 | default { |
---|
| 1091 | error "bad status \"$status\": should be new" |
---|
| 1092 | } |
---|
| 1093 | } |
---|
| 1094 | } |
---|
| 1095 | |
---|
| 1096 | # ---------------------------------------------------------------------- |
---|
| 1097 | # Trajectory - draw a trajectory between two particles |
---|
| 1098 | # |
---|
| 1099 | # Trajectory $p0 $p1 |
---|
| 1100 | # ---------------------------------------------------------------------- |
---|
| 1101 | itcl::body Rappture::VideoScreen::Trajectory {args} { |
---|
| 1102 | |
---|
| 1103 | set nargs [llength $args] |
---|
| 1104 | if {($nargs != 1) && ($nargs != 2)} { |
---|
| 1105 | error "wrong # args: should be \"Trajectory p0 p1\"" |
---|
| 1106 | } |
---|
| 1107 | |
---|
| 1108 | set p0 "" |
---|
| 1109 | set p1 "" |
---|
| 1110 | foreach {p0 p1} $args break |
---|
| 1111 | |
---|
| 1112 | if {[string compare "" $p0] == 0} { |
---|
| 1113 | # p0 does not exist |
---|
| 1114 | return |
---|
| 1115 | } |
---|
| 1116 | |
---|
| 1117 | # remove any old trajectory links from p0 |
---|
| 1118 | set p0name [$p0 name] |
---|
| 1119 | set oldlink "vec-$p0name" |
---|
| 1120 | $itk_component(main) delete $oldlink |
---|
| 1121 | |
---|
| 1122 | # check to see if p1 exists anymore |
---|
| 1123 | if {[string compare "" $p1] == 0} { |
---|
| 1124 | # p1 does not exist |
---|
| 1125 | return |
---|
| 1126 | } |
---|
| 1127 | |
---|
| 1128 | foreach {x0 y0} [$p0 Coords] break |
---|
| 1129 | foreach {x1 y1} [$p1 Coords] break |
---|
| 1130 | set p1name [$p1 name] |
---|
| 1131 | set link "vec-$p0name-$p1name" |
---|
| 1132 | $itk_component(main) create line $x0 $y0 $x1 $y1 \ |
---|
| 1133 | -fill green \ |
---|
| 1134 | -width 2 \ |
---|
| 1135 | -tags "vector $link vec-$p0name" \ |
---|
| 1136 | -dash {4 4} \ |
---|
| 1137 | -arrow last |
---|
| 1138 | $itk_component(main) lower $link $p0name |
---|
| 1139 | |
---|
| 1140 | # calculate trajectory, truncate it after 4 sigdigs |
---|
| 1141 | set t [calculateTrajectory [$p0 Frame] $x0 $y0 [$p1 Frame] $x1 $y1] |
---|
| 1142 | set tt [string range $t 0 [expr [string first . $t] + 4]] |
---|
| 1143 | |
---|
| 1144 | |
---|
| 1145 | # calculate coords for text |
---|
| 1146 | foreach { x0 y0 x1 y1 } [$itk_component(main) bbox $link] break |
---|
| 1147 | set x [expr "$x0 + (abs($x1-$x0)/2)"] |
---|
| 1148 | set y [expr "$y0 + (abs($y1-$y0)/2)"] |
---|
| 1149 | |
---|
| 1150 | set tt "$tt m/s" |
---|
| 1151 | set tags "vectext $link vec-$p0name" |
---|
| 1152 | set width [expr sqrt(pow(abs($x1-$x0),2)+pow(abs($y1-$y0),2))] |
---|
| 1153 | |
---|
| 1154 | writeText $x $y $tt green $tags $width |
---|
| 1155 | return $link |
---|
| 1156 | } |
---|
| 1157 | |
---|
| 1158 | |
---|
| 1159 | # ---------------------------------------------------------------------- |
---|
| 1160 | # writeText - write text to the canvas |
---|
| 1161 | # writes text to the canvas in the color <color> at <x>,<y> |
---|
| 1162 | # writes text twice more offset up-left and down right, |
---|
| 1163 | # to add a shadowing effect so colors can be seen |
---|
| 1164 | # |
---|
| 1165 | # FIXME: Not sure how the text wrapped due to -width collides with the |
---|
| 1166 | # offset text. |
---|
| 1167 | # ---------------------------------------------------------------------- |
---|
| 1168 | itcl::body Rappture::VideoScreen::writeText {x y text color tags width} { |
---|
[2023] | 1169 | $itk_component(main) create text [expr $x-1] [expr $y] \ |
---|
[1979] | 1170 | -tags $tags \ |
---|
| 1171 | -justify center \ |
---|
| 1172 | -text $text \ |
---|
| 1173 | -fill black \ |
---|
| 1174 | -width $width |
---|
| 1175 | |
---|
[2023] | 1176 | $itk_component(main) create text [expr $x+1] [expr $y] \ |
---|
[1979] | 1177 | -tags $tags \ |
---|
| 1178 | -justify center \ |
---|
| 1179 | -text $text \ |
---|
| 1180 | -fill black \ |
---|
| 1181 | -width $width |
---|
| 1182 | |
---|
[2023] | 1183 | $itk_component(main) create text [expr $x] [expr $y-1] \ |
---|
| 1184 | -tags $tags \ |
---|
| 1185 | -justify center \ |
---|
| 1186 | -text $text \ |
---|
| 1187 | -fill black \ |
---|
| 1188 | -width $width |
---|
| 1189 | |
---|
| 1190 | $itk_component(main) create text [expr $x] [expr $y+1] \ |
---|
| 1191 | -tags $tags \ |
---|
| 1192 | -justify center \ |
---|
| 1193 | -text $text \ |
---|
| 1194 | -fill black \ |
---|
| 1195 | -width $width |
---|
| 1196 | |
---|
| 1197 | # # write text up-left |
---|
| 1198 | # $itk_component(main) create text [expr $x-1] [expr $y-1] \ |
---|
| 1199 | # -tags $tags \ |
---|
| 1200 | # -justify center \ |
---|
| 1201 | # -text $text \ |
---|
| 1202 | # -fill black \ |
---|
| 1203 | # -width $width |
---|
| 1204 | # |
---|
| 1205 | # # write text down-right |
---|
| 1206 | # $itk_component(main) create text [expr $x+1] [expr $y+1] \ |
---|
| 1207 | # -tags $tags \ |
---|
| 1208 | # -justify center \ |
---|
| 1209 | # -text $text \ |
---|
| 1210 | # -fill black \ |
---|
| 1211 | # -width $width |
---|
| 1212 | |
---|
[1979] | 1213 | # write text at x,y |
---|
| 1214 | $itk_component(main) create text $x $y \ |
---|
| 1215 | -tags $tags \ |
---|
| 1216 | -justify center \ |
---|
| 1217 | -text $text \ |
---|
| 1218 | -fill $color \ |
---|
| 1219 | -width $width |
---|
| 1220 | |
---|
| 1221 | } |
---|
| 1222 | |
---|
| 1223 | # ---------------------------------------------------------------------- |
---|
| 1224 | # calculateTrajectory - calculate the value of the trajectory |
---|
| 1225 | # ---------------------------------------------------------------------- |
---|
| 1226 | itcl::body Rappture::VideoScreen::calculateTrajectory {args} { |
---|
| 1227 | # set framerate 29.97 ;# frames per second |
---|
| 1228 | # set px2dist 8.00 ;# px per meter |
---|
| 1229 | |
---|
| 1230 | foreach {f0 x0 y0 f1 x1 y1} $args break |
---|
| 1231 | set px [expr sqrt(pow(abs($x1-$x0),2)+pow(abs($y1-$y0),2))] |
---|
| 1232 | set frames [expr $f1 - $f0] |
---|
| 1233 | |
---|
| 1234 | if {($frames != 0) && (${_px2dist} != 0)} { |
---|
[2023] | 1235 | set t [expr 1.0*$px/$frames*${_px2dist}*${_framerate}] |
---|
[1979] | 1236 | } else { |
---|
| 1237 | set t 0.0 |
---|
| 1238 | } |
---|
| 1239 | |
---|
| 1240 | return $t |
---|
| 1241 | } |
---|
| 1242 | |
---|
| 1243 | # ---------------------------------------------------------------------- |
---|
| 1244 | # toggleloop - add/remove a start/end loop mark to video dial. |
---|
| 1245 | # ---------------------------------------------------------------------- |
---|
| 1246 | itcl::body Rappture::VideoScreen::toggleloop {} { |
---|
[2028] | 1247 | if {$_settings(loop) == 0} { |
---|
[2029] | 1248 | $itk_component(dialminor) loop disable |
---|
[1979] | 1249 | } else { |
---|
[2035] | 1250 | set cur [${_movie} get position cur] |
---|
| 1251 | set end [${_movie} get position end] |
---|
[1979] | 1252 | |
---|
| 1253 | set startframe [expr $cur-10] |
---|
| 1254 | if {$startframe < 0} { |
---|
| 1255 | set startframe 0 |
---|
| 1256 | } |
---|
| 1257 | |
---|
| 1258 | set endframe [expr $cur+10] |
---|
| 1259 | if {$endframe > $end} { |
---|
| 1260 | set endframe $end |
---|
| 1261 | } |
---|
| 1262 | |
---|
[2029] | 1263 | $itk_component(dialminor) loop between $startframe $endframe |
---|
[1979] | 1264 | } |
---|
| 1265 | |
---|
| 1266 | } |
---|
| 1267 | |
---|
| 1268 | # ---------------------------------------------------------------------- |
---|
[2035] | 1269 | # OPTION: -width - width of the video |
---|
[1925] | 1270 | # ---------------------------------------------------------------------- |
---|
| 1271 | itcl::configbody Rappture::VideoScreen::width { |
---|
| 1272 | # $_dispatcher event -idle !fixsize |
---|
| 1273 | if {[string is integer $itk_option(-width)] == 0} { |
---|
| 1274 | error "bad value: \"$itk_option(-width)\": width should be an integer" |
---|
| 1275 | } |
---|
[2023] | 1276 | set _width $itk_option(-width) |
---|
[1925] | 1277 | after idle [itcl::code $this fixSize] |
---|
| 1278 | } |
---|
| 1279 | |
---|
| 1280 | # ---------------------------------------------------------------------- |
---|
[2035] | 1281 | # OPTION: -height - height of the video |
---|
[1925] | 1282 | # ---------------------------------------------------------------------- |
---|
| 1283 | itcl::configbody Rappture::VideoScreen::height { |
---|
| 1284 | # $_dispatcher event -idle !fixsize |
---|
| 1285 | if {[string is integer $itk_option(-height)] == 0} { |
---|
| 1286 | error "bad value: \"$itk_option(-height)\": height should be an integer" |
---|
| 1287 | } |
---|
[2023] | 1288 | set _height $itk_option(-height) |
---|
[1925] | 1289 | after idle [itcl::code $this fixSize] |
---|
| 1290 | } |
---|
[2023] | 1291 | |
---|
| 1292 | # ---------------------------------------------------------------------- |
---|
| 1293 | # OPTION: -fileopen |
---|
| 1294 | # ---------------------------------------------------------------------- |
---|
| 1295 | itcl::configbody Rappture::VideoScreen::fileopen { |
---|
| 1296 | $itk_component(fileopen) configure -command $itk_option(-fileopen) |
---|
| 1297 | } |
---|