demo + utils venv
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d3m1g0d
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# Javascript template for HTMLWriter
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JS_INCLUDE = """
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<link rel="stylesheet"
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href="https://maxcdn.bootstrapcdn.com/font-awesome/4.4.0/
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css/font-awesome.min.css">
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<script language="javascript">
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/* Define the Animation class */
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function Animation(frames, img_id, slider_id, interval, loop_select_id){
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this.img_id = img_id;
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this.slider_id = slider_id;
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this.loop_select_id = loop_select_id;
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this.interval = interval;
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this.current_frame = 0;
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this.direction = 0;
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this.timer = null;
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this.frames = new Array(frames.length);
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for (var i=0; i<frames.length; i++)
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{
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this.frames[i] = new Image();
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this.frames[i].src = frames[i];
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}
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document.getElementById(this.slider_id).max = this.frames.length - 1;
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this.set_frame(this.current_frame);
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}
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Animation.prototype.get_loop_state = function(){
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var button_group = document[this.loop_select_id].state;
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for (var i = 0; i < button_group.length; i++) {
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var button = button_group[i];
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if (button.checked) {
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return button.value;
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}
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}
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return undefined;
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}
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Animation.prototype.set_frame = function(frame){
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this.current_frame = frame;
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document.getElementById(this.img_id).src =
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this.frames[this.current_frame].src;
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document.getElementById(this.slider_id).value = this.current_frame;
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}
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Animation.prototype.next_frame = function()
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{
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this.set_frame(Math.min(this.frames.length - 1, this.current_frame + 1));
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}
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Animation.prototype.previous_frame = function()
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{
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this.set_frame(Math.max(0, this.current_frame - 1));
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}
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Animation.prototype.first_frame = function()
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{
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this.set_frame(0);
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}
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Animation.prototype.last_frame = function()
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{
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this.set_frame(this.frames.length - 1);
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}
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Animation.prototype.slower = function()
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{
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this.interval /= 0.7;
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if(this.direction > 0){this.play_animation();}
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else if(this.direction < 0){this.reverse_animation();}
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}
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Animation.prototype.faster = function()
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{
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this.interval *= 0.7;
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if(this.direction > 0){this.play_animation();}
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else if(this.direction < 0){this.reverse_animation();}
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}
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Animation.prototype.anim_step_forward = function()
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{
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this.current_frame += 1;
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if(this.current_frame < this.frames.length){
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this.set_frame(this.current_frame);
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}else{
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var loop_state = this.get_loop_state();
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if(loop_state == "loop"){
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this.first_frame();
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}else if(loop_state == "reflect"){
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this.last_frame();
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this.reverse_animation();
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}else{
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this.pause_animation();
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this.last_frame();
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}
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}
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}
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Animation.prototype.anim_step_reverse = function()
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{
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this.current_frame -= 1;
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if(this.current_frame >= 0){
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this.set_frame(this.current_frame);
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}else{
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var loop_state = this.get_loop_state();
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if(loop_state == "loop"){
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this.last_frame();
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}else if(loop_state == "reflect"){
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this.first_frame();
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this.play_animation();
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}else{
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this.pause_animation();
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this.first_frame();
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}
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}
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}
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Animation.prototype.pause_animation = function()
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{
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this.direction = 0;
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if (this.timer){
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clearInterval(this.timer);
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this.timer = null;
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}
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}
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Animation.prototype.play_animation = function()
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{
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this.pause_animation();
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this.direction = 1;
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var t = this;
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if (!this.timer) this.timer = setInterval(function() {
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t.anim_step_forward();
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}, this.interval);
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}
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Animation.prototype.reverse_animation = function()
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{
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this.pause_animation();
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this.direction = -1;
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var t = this;
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if (!this.timer) this.timer = setInterval(function() {
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t.anim_step_reverse();
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}, this.interval);
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}
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</script>
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"""
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# HTML template for HTMLWriter
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DISPLAY_TEMPLATE = """
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<div class="animation" align="center">
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<img id="_anim_img{id}">
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<br>
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<input id="_anim_slider{id}" type="range" style="width:350px"
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name="points" min="0" max="1" step="1" value="0"
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onchange="anim{id}.set_frame(parseInt(this.value));"></input>
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<br>
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<button onclick="anim{id}.slower()"><i class="fa fa-minus"></i></button>
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<button onclick="anim{id}.first_frame()"><i class="fa fa-fast-backward">
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</i></button>
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<button onclick="anim{id}.previous_frame()">
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<i class="fa fa-step-backward"></i></button>
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<button onclick="anim{id}.reverse_animation()">
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<i class="fa fa-play fa-flip-horizontal"></i></button>
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<button onclick="anim{id}.pause_animation()"><i class="fa fa-pause">
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</i></button>
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<button onclick="anim{id}.play_animation()"><i class="fa fa-play"></i>
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</button>
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<button onclick="anim{id}.next_frame()"><i class="fa fa-step-forward">
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</i></button>
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<button onclick="anim{id}.last_frame()"><i class="fa fa-fast-forward">
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</i></button>
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<button onclick="anim{id}.faster()"><i class="fa fa-plus"></i></button>
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<form action="#n" name="_anim_loop_select{id}" class="anim_control">
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<input type="radio" name="state"
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value="once" {once_checked}> Once </input>
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<input type="radio" name="state"
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value="loop" {loop_checked}> Loop </input>
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<input type="radio" name="state"
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value="reflect" {reflect_checked}> Reflect </input>
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</form>
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</div>
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<script language="javascript">
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/* Instantiate the Animation class. */
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/* The IDs given should match those used in the template above. */
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(function() {{
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var img_id = "_anim_img{id}";
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var slider_id = "_anim_slider{id}";
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var loop_select_id = "_anim_loop_select{id}";
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var frames = new Array({Nframes});
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{fill_frames}
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/* set a timeout to make sure all the above elements are created before
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the object is initialized. */
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setTimeout(function() {{
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anim{id} = new Animation(frames, img_id, slider_id, {interval},
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loop_select_id);
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}}, 0);
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}})()
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</script>
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"""
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INCLUDED_FRAMES = """
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for (var i=0; i<{Nframes}; i++){{
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frames[i] = "{frame_dir}/frame" + ("0000000" + i).slice(-7) +
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".{frame_format}";
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}}
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"""
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