Removendo e adicionando Class com Jquery

Removendo e adicionando Class com Jquery

 

Adicionando uma class nas Tags P

$(‘p’).addClass(‘oneClass’)

 

Removendo uma class nas Tags P

$(‘p’).removeClass(‘myClass yourClass’)

 

Exemplo de exclusão de 2 class e inclusão de 1 class em um único comando:

$(‘p’).removeClass(‘myClass noClass’).addClass(‘yourClass’);

 

Este exemplo remove o nome da classe do penúltimo <li> do último <li> .

$(‘li:last’).removeClass(function(){

return $(this).prev().attr(‘class’);

});

Como corrigir o Erro a:hover ou li:hover em CSS

Para correção do erro no a:hover ou li:hover que funciona normal no Firefox e no IE não funciona, basta adicionar no início do documento o seguinte dado:

 

<!DOCTYPE html PUBLIC “-//W3C//DTD XHTML 1.0 Transitional//EN” “http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd”>
<html xmlns=”http://www.w3.org/1999/xhtml” dir=”ltr” lang=”en-US”>

 

Imagem em base64 com php, css e html

No site: “http://www.motobit.com/util/base64-decoder-encoder.asp” você pode codificar a imagem em base64, e aplicando ao código citado abaixo, você verá que pode ser gerada a imagem a partir do código.

Alguns tipos de conversões se encontram no site: http://php.net/manual/en/function.base64-encode.php

 

A chamada para o funcionamento abaixo deve ser o “http://caminho/nomedoarquivo.php?img=pngFolder”

 

IMAGENS

$pngFolder = <<< EOFILE
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EOFILE;
$pngFolderGo = <<< EOFILE
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EOFILE;
$gifLogo = <<< EOFILE
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$pngPlugin = <<< EOFILE
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EOFILE;


$pngWrench = <<< EOFILE
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EOFILE;


$favicon = <<< SAN
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rkJggg==
SAN;

 

 

//affichage des images
if (isset($_GET[‘img’]))
{
switch ($_GET[‘img’])
{
case ‘pngFolder’ :
header(“Content-type: image/png”);
echo base64_decode($pngFolder);
exit();

case ‘pngFolderGo’ :
header(“Content-type: image/png”);
echo base64_decode($pngFolderGo);
exit();

case ‘gifLogo’ :
header(“Content-type: image/gif”);
echo base64_decode($gifLogo);
exit();

case ‘pngPlugin’ :
header(“Content-type: image/png”);
echo base64_decode($pngPlugin);
exit();

case ‘pngWrench’ :
header(“Content-type: image/png”);
echo base64_decode($pngWrench);
exit();

case ‘favicon’ :
header(“Content-type: image/x-icon”);
echo base64_decode($favicon);
exit();
}
}

 

 

EXEMPLO 2

$file = “icon.gif”;
if($fp = fopen($file,”rb”, 0))
{
$picture = fread($fp,filesize($file));
fclose($fp);
// base64 encode the binary data, then break it
// into chunks according to RFC 2045 semantics
$base64 = chunk_split(base64_encode($picture));
$tag = ‘<a href=”http://www.britblog.com/”><img ‘ . “n” .
‘src=”data:image/gif;base64,’ . $base64 .
‘” alt=”British Blog Directory” width=”80″ height=”15″ />’;
echo $tag;
}

 

Exemplo 3

Em css pode ser feito desta maneira:

.img_teste{

   content: url(“data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAUAAAAFCAYAAACNbyblAAAAI0lEQVQIW2P4//8/w8yZM//DMIjPAGPAMIiPWxCIMQQxzAQAoFpF7lGFr24AAAAASUVORK5CYII=”);
}

Formatar campos na geração de arquivo excel

É possível forçar a formatação de campos em arquivos excel gerados pelo sistema, para isto basta gerar as informações com formato de tabela html e no td informar o class da formatação específica.
A definição do style deverá estar no início dos dados, antes da tabela, e seguir um dos formatos específicos:

>> Data no formato dd/mm/yy
.DATA1 {
mso-number-format:”dd\/mm\/yy\;\@”;
}

>> Data “Simples”
.DATA2 {
mso-number-format:”Short Date”;
}

>> Moeda Nacional
.MOEDARS {
mso-number-format:”_\(\[$R$ -416\]* \#\,\#\#0\.00_\)\;_\(\[$R$ -416\]* \\\(\#\,\#\#0\.00\\\)\;_\(\[$R$ -416\]* \0022-\0022??_\)\;_\(\@_\)”;
}

>> Moeda Estrangeira (US$)
.MOEDAUS {
mso-number-format:”_\(\[$$ -416\]* \#\,\#\#0\.00_\)\;_\(\[$$ -416\]* \\\(\#\,\#\#0\.00\\\)\;_\(\[$$ -416\]* \0022-\0022??_\)\;_\(\@_\)”;
}

>> Percentual
.PORCENTAGEM {
mso-number-format:Percent;
}

>> Forçar formatação como texto
.TEXTO {
mso-number-format:”\@”;
}

Exemplo completo:

<style>.TEXTO { mso-number-format:\@;}</style>
<table>
<tr>
<td>000123456</td>
</tr>
</table>


Criado por: Cássio Lisboa

Determinar uma div centralizada de acordo com a tela

O exemplo abaixo descreve:

Pega o tamanho da corpo da página em relação ao navegador
var wi = $(window).width();
var he = $(window).height();

Abaixo o cálculo para adicionar o css que é:
(Largura do window divido por 2) menos (altura da sua div, dividida por 2)
como mostra a baixo:
$(“.modalPropaganda”).css(‘top’, wi/2-$(“.modalPropaganda”).height()/2);
$(“.modalPropaganda”).css(‘left’, wi/2-$(“.modalPropaganda”).width()/2);

site de Referência: http://www.maujor.com/blog/2009/04/16/janela-modal-com-jquery/