minor bugfix + made the zoom relative to current scale rather than to the fixed image size...

Signed-off-by: Alex A. Naanou <alex.nanou@gmail.com>
This commit is contained in:
Alex A. Naanou 2013-05-07 00:26:35 +04:00
parent 29513fb909
commit f619e62658
2 changed files with 117 additions and 80 deletions

View File

@ -286,7 +286,7 @@ function shiftImage(direction, image, force_create_ribbon){
// need to create a new ribbon...
if(ribbon.length == 0 || force_create_ribbon == true){
var index = getRibbonIndex(old_ribbon)
index = direction == 'after' ? index + 1 : index
index = direction == 'next' ? index + 1 : index
ribbon = createRibbon(index)
@ -888,6 +888,9 @@ function nextImage(n, mode){
var target = $('.current.image').nextAll('.image' + mode)
if(target.length < n){
target = target.last()
// XXX BUG this fires we hit the end of the currently loaded
// images while scrolling very fast rather than when we are
// out of images in the current ribbon...
flashIndicator('end')
} else {
target = target.eq(n-1)
@ -900,6 +903,9 @@ function prevImage(n, mode){
var target = $('.current.image').prevAll('.image' + mode)
if(target.length < n){
target = target.last()
// XXX BUG this fires we hit the end of the currently loaded
// images while scrolling very fast rather than when we are
// out of images in the current ribbon...
flashIndicator('start')
} else {
target = target.eq(n-1)
@ -980,6 +986,9 @@ function nextRibbon(moving, mode){
}
/********************************************************* Zooming ***/
function fitNImages(n){
var image = $('.current.image')
var size = image.outerHeight(true)
@ -996,19 +1005,21 @@ function fitNImages(n){
}
var MAX_SCREEN_IMAGES = 10
var MAX_SCREEN_IMAGES = 12
var ZOOM_SCALE = 1.2
// XXX use the actual scale...
function zoomIn(){
var w = getScreenWidthInImages()
if(w > 1){
fitNImages(w-1)
w = w / ZOOM_SCALE
fitNImages(w >= 1 ? w : 1)
}
}
function zoomOut(){
var w = getScreenWidthInImages()
if(w <= MAX_SCREEN_IMAGES){
fitNImages(w+1)
w = w * ZOOM_SCALE
fitNImages(w <= MAX_SCREEN_IMAGES ? w : MAX_SCREEN_IMAGES)
}
}
@ -1016,6 +1027,8 @@ function zoomOut(){
/************************************************** Editor Actions ***/
// XXX shifting down from the main ribbon kills the app (infinite loop?)
// ...appears to be a problem with creating a new ribbon below...
function shiftImageTo(image, direction, moving, force_create_ribbon, mode){
if(image == null){
image = $('.current.image')

View File

@ -251,85 +251,109 @@ $(function(){
// dynamic loading...
// XXX move to a setup function in the lib...
// XXX update this depending on zoom and navigation speed...
var LOADER_THRESHOLD = 2
// XXX update this depending on zoom and navigation speed...
var LOADER_CHUNK = LOADER_THRESHOLD * 2
$('.viewer')
.on('preCenteringRibbon', function(evt, ribbon, image){
// NOTE: we do not need to worry about centering the ribbon
// here, just ball-park-load the correct batch...
// check if we are in the right range...
var gid = getImageGID(image)
var r = getRibbonIndex(ribbon)
var img_before = getImageBefore(image, ribbon)
var gid_before = getGIDBefore(gid, r)
if(true){
// XXX move to a setup function in the lib...
// XXX update this depending on zoom and navigation speed...
var LOADER_THRESHOLD = 2
// XXX update this depending on zoom and navigation speed...
var LOADER_CHUNK = LOADER_THRESHOLD * 2
$('.viewer')
.on('preCenteringRibbon', function(evt, ribbon, image){
// NOTE: we do not need to worry about centering the ribbon
// here, just ball-park-load the correct batch...
// check if we are in the right range...
var gid = getImageGID(image)
var r = getRibbonIndex(ribbon)
var img_before = getImageBefore(image, ribbon)
var gid_before = getGIDBefore(gid, r)
// need to load a new set of images...
if((img_before.length == 0 && gid_before != null)
|| (getImageGID(img_before) && getImageGID(img_before) != gid_before)){
// get the distance...
var images = ribbon.find('.image')
var cur = getImageGID(images.eq(Math.round(images.length/2)))
var gr = DATA.ribbons[r]
//console.log('>>>', gr.indexOf(gid_before) - gr.indexOf(cur))
rollImages(gr.indexOf(gid_before) - gr.indexOf(cur), ribbon)
}
})
// XXX it takes several steps for adjacent ribbons to catch up...
.on('centeringRibbon', function(evt, ribbon, image){
// check if we are in the right range...
var gid = getImageGID(image)
var r = getRibbonIndex(ribbon)
var img_before = getImageBefore(image, ribbon)
var gid_before = getGIDBefore(gid, r)
if(img_before.length == 0){
img_before = ribbon.find('.image').first()
}
var head = img_before.prevAll('.image')
var tail = img_before.nextAll('.image')
// NOTE: these are to be used as reference for loading/populating
// rolled images...
var first = head.first()
var last = head.first()
// XXX need to expand/contract the ribbon depending on zoom and speed...
// XXX use extendRibbon, to both roll and expand/contract...
if(tail.length < LOADER_THRESHOLD){
var rolled = rollImages(LOADER_CHUNK, ribbon)
}
if(head.length < LOADER_THRESHOLD){
var rolled = rollImages(-LOADER_CHUNK, ribbon)
}
})
.on('shiftedImage', function(evt, image, from, to){
from = getRibbonIndex(from)
var ribbon = to
to = getRibbonIndex(to)
var gid = getImageGID(image)
var index = DATA.ribbons[from].indexOf(gid)
var img = DATA.ribbons[from].splice(index, 1)
// XXX a bit ugly, revise...
index = ribbon.find('.image')
.index(ribbon.find('[gid='+JSON.stringify(gid)+']'))
DATA.ribbons[to].splice(index, 0, gid)
})
.on('createdRibbon', function(evt, index){
index = getRibbonIndex(index)
console.log('creating ribbon...')
DATA.ribbons.splice(index, 0, [])
})
.on('removedRibbon', function(evt, index){
console.log('removing ribbon...')
DATA.ribbons.splice(index, 1)
})
.on('requestedFirstImage', function(evt, ribbon){
var r = getRibbonIndex(ribbon)
// XXX this result in an infinite loop somewhere...
//var target = DATA.ribbons[r][0]
//
//loadImages(target, 30, ribbon)
// need to load a new set of images...
if((img_before.length == 0 && gid_before != null)
|| (getImageGID(img_before) && getImageGID(img_before) != gid_before)){
// get the distance...
var images = ribbon.find('.image')
var cur = getImageGID(images.eq(Math.round(images.length/2)))
var gr = DATA.ribbons[r]
//console.log('>>>', gr.indexOf(gid_before) - gr.indexOf(cur))
rollImages(gr.indexOf(gid_before) - gr.indexOf(cur), ribbon)
}
})
// XXX it takes several steps for adjacent ribbons to catch up...
.on('centeringRibbon', function(evt, ribbon, image){
// check if we are in the right range...
var gid = getImageGID(image)
var r = getRibbonIndex(ribbon)
var img_before = getImageBefore(image, ribbon)
var gid_before = getGIDBefore(gid, r)
rollImages(-gr.length, ribbon)
})
.on('requestedLastImage', function(evt, ribbon){
var r = getRibbonIndex(ribbon)
if(img_before.length == 0){
img_before = ribbon.find('.image').first()
}
// XXX this result in an infinite loop somewhere...
//var target = DATA.ribbons[r][DATA.ribbons[r].length-1]
//
//loadImages(target, 30, ribbon)
var head = img_before.prevAll('.image')
var tail = img_before.nextAll('.image')
// NOTE: these are to be used as reference for loading/populating
// rolled images...
var first = head.first()
var last = head.first()
// XXX need to expand/contract the ribbon depending on zoom and speed...
// XXX use extendRibbon, to both roll and expand/contract...
if(tail.length < LOADER_THRESHOLD){
var rolled = rollImages(LOADER_CHUNK, ribbon)
}
if(head.length < LOADER_THRESHOLD){
var rolled = rollImages(-LOADER_CHUNK, ribbon)
}
})
.on('shiftedImage', function(evt, image, from, to){
from = getRibbonIndex(from)
var ribbon = to
to = getRibbonIndex(to)
var gid = JSON.parse(image.attr('gid'))
var index = DATA.ribbons[from].indexOf(gid)
var img = DATA.ribbons[from].splice(index, 1)
// XXX a bit ugly, revise...
index = ribbon.find('.image')
.index(ribbon.find('[gid='+JSON.stringify(gid)+']'))
DATA.ribbons[to].splice(index, 0, gid)
})
.on('createdRibbon', function(evt, index){
index = getRibbonIndex(index)
console.log('creating ribbon...')
DATA.ribbons.splice(index, 0, [])
})
.on('removedRibbon', function(evt, index){
console.log('removing ribbon...')
DATA.ribbons.splice(index, 1)
})
var gr = DATA.ribbons[r]
rollImages(gr.length, ribbon)
})
}