我正在使用Jcrop jQuery API裁剪图像。
因此,首先用户点击“更改图片”链接,它将打开“文件浏览器”。用户选择图像后,灯箱将打开,有2个框,1个显示original image
,其他显示preview of image
后裁剪。但是,在Chrome中,original image
以全尺寸打开,即使它在CSS中设置了固定的最大宽度和最大高度。并且,当我再次打开灯箱而不刷新窗口时,它将根据最大宽度和最大高度显示图像。我无法弄清楚问题是什么。它在Firefox中运行良好。我也附上了截图。
以下是代码:
这是包含裁剪图像值的表单。文件选择器upload-profile-pic
将在用户点击Change Picture
链接时显示(代码中未显示)。并且,在用户选择图片后,它将设置在img
标记中,标识为uploaded-image
。
<form id="crop-image" name="cropImageForm" action="/user/UploadProfilePicture.action" method="POST" enctype="multipart/form-data">
<input id="imgX" name="imgX" type="hidden" />
<input id="imgY" name="imgY" type="hidden" />
<input id="imgW" name="imgW" type="hidden" />
<input id="imgH" name="imgH" type="hidden" />
<input id="upload-profile-pic" name="uploadedImage" type="file" style="display: none;" accept="image/*" onchange="checkUploadedFile();" />
</form>
<a href="/lightbox-pages/crop-profile-pic.jsp?lightbox[width]=800&lightbox[height]=600" style="display: none;" id="crop-profile-pic">Crop Profile Picture</a>
<img id="uploaded-image" style="display: none;" />
设置src
的{{1}}属性的代码:
uploaded-image
设置var uploadedImage;
var lightBoxNotOpened=true;//to prevent image from opening twice in lightbox
function checkUploadedFile() {
var fileElement = document.getElementById("upload-profile-pic");
var fileExtension = "";
if (fileElement.value.lastIndexOf(".") > 0) {
fileExtension = fileElement.value.substring(fileElement.value.lastIndexOf(".") + 1, fileElement.value.length);
}
if (fileExtension == "jpg" || fileExtension == "JPG" || fileExtension == "jpeg") {
var imageReader = new FileReader();
imageReader.onload = function(e) {
$("#uploaded-image").attr("src", e.target.result);
$("#crop-profile-pic")[0].click();
};
imageReader.readAsDataURL(fileElement.files[0]);
return false;
}
else {
return false;
}
}
属性的值后,它将打开灯箱(灯箱在标识为src
的链接的点击事件上打开)。在灯箱中,它会显示页面crop-profile-pic
。
jsp页面的主要代码:
Javascript代码:
crop-profile-pic.jsp
<script type="text/javascript">
$(document).ready(function() {
if (!lightBoxNotOpened) {
jQuery(".jcrop-holder").remove();
jQuery("#target").attr("src", jQuery("#uploaded-image").attr("src"));//setting target image source
jQuery("#preview-pane .preview-container img").attr("src", jQuery("#uploaded-image").attr("src"));//setting target image source
// Create variables (in this scope) to hold the API and image size
var jcrop_api,
boundx,
boundy,
// Grab some information about the preview pane
$preview = $('#preview-pane'),
$pcnt = $('#preview-pane .preview-container'),
$pimg = $('#preview-pane .preview-container img'),
xsize = 165,
ysize = 165;
//console.log('init', [xsize, ysize]);
$('#target').Jcrop({
onChange: updatePreview,
onSelect: updatePreview,
aspectRatio: 1
}, function () {
// Use the API to get the real image size
var bounds = this.getBounds();
boundx = bounds[0];
boundy = bounds[1];
// Store the API in the jcrop_api variable
jcrop_api = this;
// Move the preview into the jcrop container for css positioning
//$preview.appendTo(jcrop_api.ui.holder);
});
}
else {
lightBoxNotOpened = false;
}
function updatePreview(c)
{
$('#imgX').val(c.x);
$('#imgY').val(c.y);
$('#imgW').val(Math.floor(c.w)-1);
$('#imgH').val(Math.floor(c.h)-1);
if (parseInt(c.w) > 0)
{
var rx = xsize / c.w;
var ry = ysize / c.h;
$pimg.css({
width: Math.round(rx * boundx) + 'px',
height: Math.round(ry * boundy) + 'px',
marginLeft: '-' + Math.round(rx * c.x) + 'px',
marginTop: '-' + Math.round(ry * c.y) + 'px'
});
}
}
});
function submitCropImageForm() {
document.cropImageForm.submit();
}
</script>
div的HTML代码(图片ID original-image
)和target
div:
preview
<div style="width:280px;height:280px;margin-left:5px;line-height:280px;border:1px solid black;text-align: center;">
<img src="/images/no-profile-pic.png" id="target" alt="Uploaded Image" />
</div>
<div id="preview-pane">
<div class="preview-container">
<img src="/images/no-profile-pic.png" id="preview-image" class="jcrop-preview" alt="Preview Thumbnail" />
</div>
</div>
的CSS:
target
第一次选择图像时的屏幕截图:
再次选择图像而不刷新页面时的屏幕截图:
答案 0 :(得分:0)
我建议您在jcrop设置中设置框的宽度和高度,而不是css。我认为这对你来说很有用。
看起来应该是那样
if(is_array($criteria)) {
$query.=" WHERE `".$where." IN (" . join(",", $criteria) . ")";
}
else {
$query.=" WHERE `".$where." = '{$criteria}'";
}