302 lines
9.3 KiB
Perl
302 lines
9.3 KiB
Perl
package WebGUI::Asset::File::Image;
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=head1 LEGAL
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-------------------------------------------------------------------
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WebGUI is Copyright 2001-2006 Plain Black Corporation.
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-------------------------------------------------------------------
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Please read the legal notices (docs/legal.txt) and the license
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(docs/license.txt) that came with this distribution before using
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this software.
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-------------------------------------------------------------------
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http://www.plainblack.com info@plainblack.com
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-------------------------------------------------------------------
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=cut
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use strict;
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use WebGUI::Asset::File;
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use WebGUI::Storage::Image;
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use WebGUI::HTMLForm;
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use WebGUI::Utility;
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our @ISA = qw(WebGUI::Asset::File);
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=head1 NAME
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Package WebGUI::Asset::File::Image
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=head1 DESCRIPTION
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Extends WebGUI::Asset::File to add image manipulation operations.
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=head1 SYNOPSIS
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use WebGUI::Asset::File::Image;
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=head1 METHODS
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These methods are available from this class:
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=cut
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#-------------------------------------------------------------------
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=head2 definition ( definition )
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Defines the properties of this asset.
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=head3 definition
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A hash reference passed in from a subclass definition.
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=cut
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sub definition {
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my $class = shift;
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my $session = shift;
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my $definition = shift;
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my $i18n = WebGUI::International->new($session,"Asset_Image");
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push(@{$definition}, {
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assetName=>$i18n->get('assetName'),
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tableName=>'ImageAsset',
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className=>'WebGUI::Asset::File::Image',
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properties=>{
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thumbnailSize=>{
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fieldType=>'integer',
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defaultValue=>$session->setting->get("thumbnailSize")
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},
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parameters=>{
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fieldType=>'textarea',
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defaultValue=>'border="0"'
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}
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}
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});
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return $class->SUPER::definition($session,$definition);
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}
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#-------------------------------------------------------------------
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=head2 generateThumbnail ( [ thumbnailSize ] )
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Generates a thumbnail for this image.
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=head3 thumbnailSize
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A size, in pixels, of the maximum height or width of a thumbnail. If specified this will change the thumbnail size of the image. If unspecified the thumbnail size set in the properties of this asset will be used.
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=cut
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sub generateThumbnail {
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my $self = shift;
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my $thumbnailSize = shift;
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if (defined $thumbnailSize) {
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$self->update({thumbnailSize=>$thumbnailSize});
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}
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$self->getStorageLocation->generateThumbnail($self->get("filename"),$self->get("thumbnailSize"));
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}
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#-------------------------------------------------------------------
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=head2 getEditForm ()
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Returns the TabForm object that will be used in generating the edit page for this asset.
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=cut
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sub getEditForm {
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my $self = shift;
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my $tabform = $self->SUPER::getEditForm();
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my $i18n = WebGUI::International->new($self->session,"Asset_Image");
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$tabform->getTab("properties")->integer(
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-name=>"thumbnailSize",
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-label=>$i18n->get('thumbnail size'),
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-hoverHelp=>$i18n->get('Thumbnail size description'),
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-value=>$self->getValue("thumbnailSize")
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);
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$tabform->getTab("properties")->textarea(
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-name=>"parameters",
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-label=>$i18n->get('parameters'),
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-hoverHelp=>$i18n->get('Parameters description'),
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-value=>$self->getValue("parameters")
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);
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if ($self->get("filename") ne "") {
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$tabform->getTab("properties")->readOnly(
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-label=>$i18n->get('thumbnail'),
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-hoverHelp=>$i18n->get('Thumbnail description'),
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-value=>'<a href="'.$self->getFileUrl.'"><img src="'.$self->getThumbnailUrl.'?noCache='.$self->session->datetime->time().'" alt="thumbnail" /></a>'
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);
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my ($x, $y) = $self->getStorageLocation->getSizeInPixels($self->get("filename"));
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$tabform->getTab("properties")->readOnly(
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-label=>$i18n->get('image size'),
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-value=>$x.' x '.$y
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);
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}
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return $tabform;
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}
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#-------------------------------------------------------------------
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sub getIcon {
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my $self = shift;
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my $small = shift;
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return $self->session->config->get("extrasURL").'/assets/image.gif' unless ($small);
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$self->SUPER::getIcon(1);
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}
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#-------------------------------------------------------------------
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sub getStorageLocation {
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my $self = shift;
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unless (exists $self->{_storageLocation}) {
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if ($self->get("storageId") eq "") {
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$self->{_storageLocation} = WebGUI::Storage::Image->create($self->session);
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$self->update({storageId=>$self->{_storageLocation}->getId});
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} else {
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$self->{_storageLocation} = WebGUI::Storage::Image->get($self->session,$self->get("storageId"));
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}
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}
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return $self->{_storageLocation};
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}
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#-------------------------------------------------------------------
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sub getThumbnailUrl {
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my $self = shift;
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return $self->getStorageLocation->getThumbnailUrl($self->get("filename"));
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}
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#-------------------------------------------------------------------
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=head2 getToolbar ( )
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Returns a toolbar with a set of icons that hyperlink to functions that delete, edit, promote, demote, cut, and copy.
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=cut
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sub getToolbar {
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my $self = shift;
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return undef if ($self->getToolbarState);
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return $self->SUPER::getToolbar();
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}
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#-------------------------------------------------------------------
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sub processPropertiesFromFormPost {
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my $self = shift;
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$self->SUPER::processPropertiesFromFormPost;
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my $parameters = $self->get("parameters");
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unless ($parameters =~ /alt\=/) {
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$self->update({parameters=>$parameters.' alt="'.$self->get("title").'"'});
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}
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my $storage = $self->getStorageLocation;
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$self->generateThumbnail($self->session->setting->get("maxImageSize"));
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$storage->deleteFile($self->get("filename"));
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$storage->renameFile('thumb-'.$self->get("filename"),$self->get("filename"));
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$self->generateThumbnail($self->session->form->process("thumbnailSize"));
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}
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#-------------------------------------------------------------------
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sub setSize {
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my $self = shift;
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my $input = shift;
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my $storage = $self->getStorageLocation;
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my $size = ($input > $storage->getFileSize($self->get("filename"))) ? $input : $storage->getFileSize($self->get("filename"));
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return $self->SUPER::setSize($size);
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}
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#-------------------------------------------------------------------
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sub view {
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my $self = shift;
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my %var = %{$self->get};
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$var{controls} = $self->getToolbar;
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$var{fileUrl} = $self->getFileUrl;
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$var{fileIcon} = $self->getFileIconUrl;
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$var{thumbnail} = $self->getThumbnailUrl;
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return $self->processTemplate(\%var,$self->get("templateId"));
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}
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#-------------------------------------------------------------------
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sub www_edit {
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my $self = shift;
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return $self->session->privilege->insufficient() unless $self->canEdit;
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my $i18n = WebGUI::International->new($self->session, 'Asset_Image');
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$self->getAdminConsole->addSubmenuItem($self->getUrl('func=resize'),$i18n->get("resize image")) if ($self->get("filename"));
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my $tabform = $self->getEditForm;
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$tabform->getTab("display")->template(
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-value=>$self->get("templateId"),
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-namespace=>"ImageAsset",
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-hoverHelp=>$i18n->get('image template description'),
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-defaultValue=>"PBtmpl0000000000000088"
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);
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$self->getAdminConsole->setHelp("image add/edit","Asset_Image");
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return $self->getAdminConsole->render($tabform->print,$i18n->get("edit image"));
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}
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#-------------------------------------------------------------------
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sub www_resize {
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my $self = shift;
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return $self->session->privilege->insufficient() unless $self->canEdit;
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if ($self->session->form->process("newWidth") || $self->session->form->process("newHeight")) {
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$self->getStorageLocation->resize($self->get("filename"),$self->session->form->process("newWidth"),$self->session->form->process("newHeight"));
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$self->setSize($self->getStorageLocation->getFileSize($self->get("filename")));
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}
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my $i18n = WebGUI::International->new($self->session,"Asset_Image");
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$self->getAdminConsole->addSubmenuItem($self->getUrl('func=edit'),$i18n->get("edit image"));
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my $f = WebGUI::HTMLForm->new($self->session,-action=>$self->getUrl);
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$f->hidden(
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-name=>"func",
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-value=>"resize"
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);
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my ($x, $y) = $self->getStorageLocation->getSizeInPixels($self->get("filename"));
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$f->readOnly(
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-label=>$i18n->get('image size'),
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-hoverHelp=>$i18n->get('image size description'),
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-value=>$x.' x '.$y,
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);
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$f->integer(
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-label=>$i18n->get('new width'),
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-hoverHelp=>$i18n->get('new width description'),
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-name=>"newWidth",
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-value=>$x,
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);
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$f->integer(
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-label=>$i18n->get('new height'),
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-hoverHelp=>$i18n->get('new height description'),
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-name=>"newHeight",
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-value=>$y,
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);
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$f->submit;
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my $image = '<div align="center"><img src="'.$self->getStorageLocation->getUrl($self->get("filename")).'" border="1" alt="'.$self->get("filename").'" /></div>';
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$self->getAdminConsole->setHelp("image resize","Asset_Image");
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return $self->getAdminConsole->render($f->print.$image,$i18n->get("resize image"));
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}
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#-------------------------------------------------------------------
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=head2 www_view
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A web executable method that redirects the user to the specified page, or displays the edit interface when admin mode is enabled.
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=cut
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sub www_view {
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my $self = shift;
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if ($self->session->var->get("adminOn")) {
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return $self->www_edit;
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}
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my $storage = $self->getStorageLocation;
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$self->session->http->setRedirect($storage->getUrl($self->get("filename")));
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return "";
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}
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1;
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