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Added interactive zoom support to document page detail view

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This commit is contained in:
Roberto Rosario
2011-04-21 02:32:30 -04:00
parent 680c33227c
commit 27d7aed25c
5 changed files with 77 additions and 17 deletions
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49
apps/documents/views.py
View File

@@ -545,13 +545,18 @@ def get_document_image(request, document_id, size=PREVIEW_SIZE, quality=QUALITY_
pass
tranformation_string = ' '.join(transformation_list)
zoom = int(request.GET.get('zoom', 100))
if zoom > 200:
zoom = 200
try:
filepath = in_image_cache(document.checksum, size=size, quality=quality, extra_options=tranformation_string, page=page - 1)
filepath = in_image_cache(document.checksum, size=size, quality=quality, extra_options=tranformation_string, page=page - 1, zoom=zoom)
if filepath:
return sendfile.sendfile(request, filename=filepath)
#Save to a temporary location
filepath = document_save_to_temp_dir(document, filename=document.checksum)
output_file = convert(filepath, size=size, format='jpg', quality=quality, extra_options=tranformation_string, page=page - 1)
output_file = convert(filepath, size=size, format='jpg', quality=quality, extra_options=tranformation_string, page=page - 1, zoom=zoom)
return sendfile.sendfile(request, filename=output_file)
except UnkownConvertError, e:
if request.user.is_staff or request.user.is_superuser:
@@ -893,8 +898,10 @@ def document_page_view(request, document_page_id):
check_permissions(request.user, 'documents', [PERMISSION_DOCUMENT_VIEW])
document_page = get_object_or_404(DocumentPage, pk=document_page_id)
document_page_form = DocumentPageForm(instance=document_page)
zoom = int(request.GET.get('zoom', 100))
document_page_form = DocumentPageForm(instance=document_page, zoom=zoom)
form_list = [
{
'form': document_page_form,
@@ -1004,3 +1011,39 @@ def document_list_recent(request):
'multi_select_as_buttons': True,
'hide_links': True
}, context_instance=RequestContext(request))
def document_page_zoom_in(request, document_page_id):
check_permissions(request.user, 'documents', [PERMISSION_DOCUMENT_VIEW])
view = resolve_to_name(urlparse.urlparse(request.META.get('HTTP_REFERER', '/')).path)
document_page = get_object_or_404(DocumentPage, pk=document_page_id)
#TODO: Improve this hack
query = urlparse.urlparse(request.META.get('HTTP_REFERER', '/')).query.split(u'=')
try:
zoom = int(query[1])
except:
zoom = 100
zoom += 50
if zoom > 200:
zoom = 200
return HttpResponseRedirect(reverse(view, args=[document_page.pk]) + u'?zoom=%s' % zoom)
def document_page_zoom_out(request, document_page_id):
check_permissions(request.user, 'documents', [PERMISSION_DOCUMENT_VIEW])
view = resolve_to_name(urlparse.urlparse(request.META.get('HTTP_REFERER', '/')).path)
document_page = get_object_or_404(DocumentPage, pk=document_page_id)
#TODO: Improve this hack
query = urlparse.urlparse(request.META.get('HTTP_REFERER', '/')).query.split(u'=')
try:
zoom = int(query[1])
except:
zoom = 100
zoom -= 50
if zoom <50:
zoom = 50
return HttpResponseRedirect(reverse(view, args=[document_page.pk]) + u'?zoom=%s' % zoom)