WebInspector.FontPanel = function(resource)
{
WebInspector.ResourcePanel.call(this, resource);
this.element.addStyleClass("font");
var uniqueFontName = "WebInspectorFontPreview" + this.resource.identifier;
this.fontPreviewElement = document.createElement("div");
this.fontPreviewElement.className = "preview";
this.element.appendChild(this.fontPreviewElement);
this.fontPreviewElement.style.setProperty("font-family", uniqueFontName, null);
this.fontPreviewElement.innerHTML = "ABCDEFGHIJKLM<br>NOPQRSTUVWXYZ<br>abcdefghijklm<br>nopqrstuvwxyz<br>1234567890";
this.updateFontPreviewSize();
}
WebInspector.FontPanel.prototype = {
show: function()
{
WebInspector.ResourcePanel.prototype.show.call(this);
this.updateFontPreviewSize();
},
resize: function()
{
this.updateFontPreviewSize();
},
updateFontPreviewSize: function ()
{
if (!this.fontPreviewElement || !this.visible)
return;
this.fontPreviewElement.removeStyleClass("preview");
var measureFontSize = 50;
this.fontPreviewElement.style.setProperty("position", "absolute", null);
this.fontPreviewElement.style.setProperty("font-size", measureFontSize + "px", null);
this.fontPreviewElement.style.removeProperty("height");
var height = this.fontPreviewElement.offsetHeight;
var width = this.fontPreviewElement.offsetWidth;
var containerHeight = this.element.offsetHeight;
var containerWidth = this.element.offsetWidth;
if (!height || !width || !containerHeight || !containerWidth) {
this.fontPreviewElement.style.removeProperty("font-size");
this.fontPreviewElement.style.removeProperty("position");
this.fontPreviewElement.addStyleClass("preview");
return;
}
var lineCount = this.fontPreviewElement.getElementsByTagName("br").length + 1;
var realLineHeight = Math.floor(height / lineCount);
var fontSizeLineRatio = measureFontSize / realLineHeight;
var widthRatio = containerWidth / width;
var heightRatio = containerHeight / height;
if (heightRatio < widthRatio)
var finalFontSize = Math.floor(realLineHeight * heightRatio * fontSizeLineRatio) - 1;
else
var finalFontSize = Math.floor(realLineHeight * widthRatio * fontSizeLineRatio) - 1;
this.fontPreviewElement.style.setProperty("font-size", finalFontSize + "px", null);
this.fontPreviewElement.style.setProperty("height", this.fontPreviewElement.offsetHeight + "px", null);
this.fontPreviewElement.style.removeProperty("position");
this.fontPreviewElement.addStyleClass("preview");
}
}
WebInspector.FontPanel.prototype.__proto__ = WebInspector.ResourcePanel.prototype;