OK, most of the meat and potatoes of what I'm doing is in this
cfscript block. I'm sure that it's possible to encapsulate this in a
much neater fashion, I just chose not to.
<cfscript>
/* Set some variables that will make it easier to work with file and
server paths */
filepath = cffile.serverdirectory & "\";
imgname = cffile.serverfile;
fullImgPath = filepath & imgname;
thumbname = cffile.serverfilename & "_thumb." & cffile.serverfileext;
fullThumbPath = filepath & thumbname;
/* Invoke the image CFC */
imgObj = CreateObject("component", "lib.cfc.tmt_img");
imgObj.getDimensions("#fullImgPath#");
/* Set image width and height as variables to make them easier to work
with */
imgwidth = imgObj.getwidth("#fullImgPath#");
imgheight = imgObj.getheight("#fullImgPath#");
if (imgwidth GT imgheight) {
orientation = "landscape";
} else if (imgwidth LT imgheight) {
orientation = "portrait";
} else {
orientation = "square";
}
resizewidth = imgwidth;
resizethumbwidth = maxthumbdimension;
divide_by_value = (imgheight / imgwidth);
if ((imgwidth GTE maxdimension) AND (imgheight GTE maxdimension) AND
(imgwidth GTE imgheight)) {
resizewidth = maxdimension;
resizethumbwidth = maxthumbdimension;
diagnostics = diagnostics & "Landscape, both dimensions larger
than max.<br>";
resize = "true";
} else if ((imgwidth GTE maxdimension) AND (imgheight GTE
maxdimension) AND (imgwidth LTE imgheight)) {
resizewidth = (maxdimension / divide_by_value);
resizewidth = round(resizewidth);
resizethumbwidth = (maxthumbdimension / divide_by_value);
resizethumbwidth = round(resizethumbwidth);
diagnostics = diagnostics & "Portrait, both dimensions larger
than max.<br>";
resize = "true";
} else if ((imgwidth GTE maxdimension) AND (imgheight LTE
maxdimension)) {
resizewidth = maxdimension;
resizethumbwidth = maxthumbdimension;
diagnostics = diagnostics & "Landscape, width greater than max,
height less than max.<br>";
resize = "true";
} else if ((imgwidth LTE maxdimension) AND (imgheight GTE
maxdimension)) {
resizewidth = (maxdimension / divide_by_value);
resizewidth = round(resizewidth);
resizethumbwidth = (maxthumbdimension / divide_by_value);
resizethumbwidth = round(resizethumbwidth);
diagnostics = diagnostics & "Portrait, width less than max,
height
greater than max.<br>";
resize = "true";
} else {
diagnostics = diagnostics & "Both dimensions smaller than max.
[ELSE]<br>";
resize = "false";
/* Image is smaller than the maxdimension in both dimensions.
It won't resize the image, but what about sizing the
thumbnail? */
if ((imgwidth GTE maxthumbdimension) AND (imgheight LTE
maxthumbdimension)) {
/* */
resizewidth = imgwidth;
resizethumbwidth = maxthumbdimension;
diagnostics = diagnostics & "Landscape, larger than
thumbmax but
smaller than max.<br>";
resize = "true";
} else if ((imgwidth LTE maxthumbdimension) AND (imgheight GTE
maxthumbdimension)) {
resizewidth = imgwidth;
resizethumbwidth = (maxthumbdimension /
divide_by_value);
diagnostics = diagnostics & "Portrait, larger than
thumbmax but
smaller than max.<br>";
resize = "true";
} else {
/* Image smaller than thumbnail in both dimensions.
Don't create new thumbnail. */
diagnostics = diagnostics & "Smaller than thumbmax.
[ELSE]<br>";
resize = "false";
}
}
/* Doublecheck the portrait/resizewidth = maxthumbdimension bug */
if ((orientation EQ "portrait") AND (resizethumbwidth EQ
maxthumbdimension)) {
resizethumbwidth = (maxthumbdimension / divide_by_value);
/* diagnostics = diagnostics & "Bug trapped!<br>"; */
}
if (resize EQ "true") {
/* Scale down large images using the resizewidth value */
imgObj.resize(fullImgPath, "#fullImgPath#", resizewidth);
imgObj.resize(fullImgPath, "#fullThumbPath#", resizethumbwidth);
diagnostics = diagnostics & "Resize true, Image and thumbnail
created.<br>";
} else if ((imgwidth LT maxthumbdimension) AND (imgheight LT
maxthumbdimension)) {
imgObj.resize(fullImgPath, "#fullThumbPath#", imgwidth);
diagnostics = diagnostics & "Resize false, Image and thumbnail
created.<br>";
} else {
imgObj.resize(fullImgPath, "#fullThumbPath#", resizethumbwidth);
diagnostics = diagnostics & "Resize false, but creating a
properly
sized thumbnail. [ELSE]<br>";
}
</cfscript>
If this isn't enough, I can make a zipped copy of the CFM template available.
Pete
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