SpreadJS是一款基于 HTML5 的純前端表格控件，兼容 450 種以上的 Excel 公式，具備“高性能、跨平臺(tái)、與 Excel 高度兼容”的產(chǎn)品特性 可為用戶帶來(lái)親切、易用的使用體驗(yàn)，并滿足 Web Excel組件開(kāi)發(fā)、表格文檔協(xié)同編輯、 數(shù)據(jù)填報(bào)、 類Excel報(bào)表設(shè)計(jì)等業(yè)務(wù)場(chǎng)景，可極大降低企業(yè)研發(fā)成本和項(xiàng)目交付風(fēng)險(xiǎn)。
下載SpreadJS最新試用版
此示例顯示如何自定義工作簿背景。
你可以設(shè)置 backColor 或者 backgroundImage 選項(xiàng)為每一個(gè)表單設(shè)置背景色或者背景圖片。如果你同時(shí)設(shè)置背景色和背景圖片, 那么背景圖片將會(huì)優(yōu)先顯示。
var spread = GC.Spread.Sheets.findControl(document.getElementById('ss')); // set the worksheet's backcolor spread.options.backColor = 'red'; // and set the surrounding area spread.options.grayAreaBackColor = 'gray';
或者，您可以使用workbook的** backgroundImage **選項(xiàng)為工作表設(shè)置背景圖像。請(qǐng)注意，設(shè)置背景圖像會(huì)覆蓋所有設(shè)置的背景顏色，因此必須將其刪除才能使背景顏色生效。
var spread = GC.Spread.Sheets.findControl(document.getElementById('ss')); // Set a background image for the sheets spread.options.backgroundImage = 'images/backImage.png';
SpreadJS 提供控制圖片布局方式的能力, 你可以設(shè)置 backgroundImageLayout 選項(xiàng)來(lái)完成此目標(biāo)。圖片布局包含以下幾種類型:
-
stretch: 改變圖像尺寸使其充滿整個(gè)區(qū)域,無(wú)視實(shí)際的長(zhǎng)寬比。
-
center: 圖片將顯示在區(qū)域的正中央。
-
zoom: 改變圖像的尺寸使其適合控件尺寸,圖片實(shí)際的長(zhǎng)寬比不變。
-
none: 在顯示區(qū)域中使用圖像實(shí)際的尺寸顯示該圖像,沒(méi)有任何尺寸變化。
spread.options.backgroundImageLayout = GC.Spread.Sheets.ImageLayout.stretch; //spread.options.backgroundImageLayout = GC.Spread.Sheets.ImageLayout.center; //spread.options.backgroundImageLayout = GC.Spread.Sheets.ImageLayout.zoom; //spread.options.backgroundImageLayout = GC.Spread.Sheets.ImageLayout.none;
你也可以設(shè)置 grayAreaBackColor 選項(xiàng)來(lái)設(shè)置表單灰色區(qū)域的背景色。
spread.options.grayAreaBackColor = 'gray';
app.js:
window.onload = function() {
var spread = new GC.Spread.Sheets.Workbook(_getElementById('ss'), { sheetCount: 1 });
initSpread(spread);
};
function initSpread(spread) {
var spreadNS = GC.Spread.Sheets;
var sheet = spread.getSheet(0);
var pictureUrl = '';
spread.suspendPaint();
sheet.setRowCount(15);
sheet.setColumnCount(20);
spread.options.backColor = 'white';
spread.options.grayAreaBackColor = 'gray';
spread.options.backgroundImageLayout = spreadNS.ImageLayout.stretch;
spread.options.backgroundImage = '$DEMOROOT$/spread/source/images/backImage.png';
spread.resumePaint();
_getElementById('layout').addEventListener('change',function() {
var layout = parseInt(document.getElementById('layout').value);
spread.options.backgroundImageLayout = layout;
});
_getElementById('setGrayAreaBackColor').addEventListener('click', function() {
var color = document.getElementById('grayAreaBackColor').value;
spread.options.grayAreaBackColor = color;
});
_getElementById('setSpreadBackColor').addEventListener('click', function() {
var color = document.getElementById('spreadBackColor').value;
spread.options.backColor = color;
});
_getElementById('file_input').addEventListener('change', function() {
var file = this.files[0];
if (!/image\/\w+/.test(file.type)) {
alert('The file muse be image!');
return false;
}
var reader = new FileReader();
reader.readAsDataURL(file);
reader.onload = function(e) {
pictureUrl = this.result;
};
});
_getElementById('setSpreadBackgroundImage').addEventListener('click', function() {
spread.options.backgroundImage = pictureUrl;
});
_getElementById('delSpreadBackgroundImage').addEventListener('click', function() {
spread.options.backgroundImage = '';
});
}
function _getElementById(id){
return document.getElementById(id);
}
index.html:
<!doctype html>
<html style="height:100%;font-size:14px;">
<head>
<meta name="spreadjs culture" content="zh-cn" />
<meta charset="utf-8" />
<meta name="viewport" content="width=device-width, initial-scale=1.0" />
<link rel="stylesheet" type="text/css" href="$DEMOROOT$/zh/purejs/node_modules/@grapecity/spread-sheets/styles/gc.spread.sheets.excel2013white.css">
<script src="$DEMOROOT$/zh/purejs/node_modules/@grapecity/spread-sheets/dist/gc.spread.sheets.all.min.js" type="text/javascript"></script>
<script src="$DEMOROOT$/zh/purejs/node_modules/@grapecity/spread-sheets-resources-zh/dist/gc.spread.sheets.resources.zh.min.js" type="text/javascript"></script>
<script src="$DEMOROOT$/spread/source/js/license.js" type="text/javascript"></script>
<script src="app.js" type="text/javascript"></script>
<link rel="stylesheet" type="text/css" href="styles.css">
</head>
<body>
<div class="sample-tutorial">
<div id="ss" class="sample-spreadsheets"></div>
<div class="options-container">
<div class="option-row">
<label >Enter a color name to set the color of the workbook gray area.</label>
</div>
<div class="option-row">
<input type="text" id="grayAreaBackColor"/>
<input type="button" id="setGrayAreaBackColor" value="Set Gray Area BackColor"/>
</div>
<div class="option-row">
<label >Enter a color name to set the workbook background color.</label>
<label class="note">Note: remove background image at the bottom to see this change.</label>
</div>
<div class="option-row">
<input type="text" id="spreadBackColor"/>
<input type="button" id="setSpreadBackColor" value="Set Workbook BackColor"/>
</div>
<div class="option-row">
<label >Image:</label>
<input type="file" name="image" id="file_input" />
</div>
<div class="option-row">
<label >Workbook Background Image Layout:</label>
<select id="layout" >
<option value="0" selected="selected">Stretch</option>
<option value="1">Center</option>
<option value="2">Zoom</option>
<option value="3">None</option>
</select>
</div>
<div class="option-row">
<input type="button" id="setSpreadBackgroundImage" value="Set" class="narrow-button" />
<input type="button" id="delSpreadBackgroundImage" value="Del Background Image" />
</div>
</div>
</div>
</body>
</html>
style.css:
input[type="button"] {
width: 180px;
}
input[type="text"] {
padding: 4px;
margin-top: 4px;
width: 100%;
box-sizing: border-box;
}
label {
display: inline-block;
margin-bottom: 6px;
}
.note{
margin-top: 0px;
}
.colorLabel {
background-color: lavender;
}
.wide-label {
width: 260px;
}
input.narrow-button, .narrow-label {
width: 74px;
}
.sample-tutorial {
position: relative;
height: 100%;
overflow: hidden;
}
.sample-spreadsheets {
width: calc(100% - 300px);
height: 100%;
overflow: hidden;
float: left;
}
.options-container {
float: right;
width: 300px;
padding: 12px;
height: 100%;
box-sizing: border-box;
background: #fbfbfb;
overflow: auto;
}
.option-row:nth-child(1){
padding-bottom: 0px;
}
.option-row:nth-child(2){
margin-top: 0px;
padding-top: 0px;
}
.option-row:nth-child(3){
padding-bottom: 0px;
}
.option-row:nth-child(4){
margin-top: 0px;
padding-top: 0px;
}
.option-row {
font-size: 14px;
padding: 5px;
margin-top: 10px;
}
input {
padding: 4px 6px;
}
input[type=button] {
margin-top: 6px;
display: block;
}
hr {
border-color: #fff;
opacity: .2;
margin-top: 20px;
}
body {
position: absolute;
top: 0;
bottom: 0;
left: 0;
right: 0;
}
本文轉(zhuǎn)載自：葡萄城
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