
Custom TagsBy CS Internétique© Claude Schnéegans |
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| Notes:
1. None of these tags is encrypted. Except for the CFXs, full source code is included. 2. All tags are CF5 and CFMX compatible, and probabily also CF 4. |
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The results returned by CFDIRECTORY are far from being complete and usable: date-time values are badly formated and uncomplete, file attributes are not returned, etc. CFX_ListDir is an attempt to fix these flaws and adds many features like a more versatile selection of files, according to their extension, date last modified and any of their attributes like read-only, archive, etc. |
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CFX_mapData, and its companion CF_mapKey, can be used to colorize regions on a geographical map under a particular gif format. The trick is that the tag does not modify any pixel in the image, but only the palette of 256 colors contained in the file. It then produces a copy of the gif image, only some colors are changed. By just ajusting a 768 bytes region in the gif file, a completely new image can be generated almost instantly. |
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This tool is a set of one custom tag, CSS and Javascript files, which makes adding online help in a ColdFusion application as easy as just typing text. Any HTML object can be "Help enabled" by just adding an attribute with an identificator to the tag. Then an online help popup can be added anywhere in the page using a simple custom tag. The text inside the custom tag can contain any HTML codes.
When the mouse passes over an help enabled element, the cursor chages for the help cursor ( |
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This tag returns the hexadecimal color value of a pixel defined by its coordinates in any GIF, JPEG or PNG image. For a GIF image, it also returns the color index in the palette.
This tag is actually two in one:
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Many developer tools are available to create attractive frames around some content in Web pages. For instance, the home page at eBay has at least six of such frames.
These stand alone programs however lack some versatility: they produce a bunch if image parts and the HTML code to display them in a table layout, but the content inside the frame is hardly managed in dynamic mode. The size of the frame is generally not adjustable, or at most, adjustable by hand with much difficulty. CF_easyFrame combines all the versatility of using image parts in tables, like with the developer tools, but works on the server. It also uses a technique that makes the frames 100% dynamically adjustable by the server, with ColdFusion, depending on the content. Another advantage is that the developer has just one minimal and very simple image to provide. Most of the time, CF_easyFrame will extract all necessary image parts from simple circular object. The creation of the image parts is performed only the first time the tag is used. All the images are then stored on the server and are used later on, making the use of the tag not any havier for the server than with other systems. |
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Most Image management software and hardware (cameras) produce files that embed information about creation date and method. This information, albeit useful in some circumstances, is useless for display in a browser. You may be not aware of it, but if you own a Web site with thousands of images, you may be paying thousands for nothing in wasted disk space!
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Try this new poweful and handy tool especially created for the ColdFusion developer by a ColdFusion developer(!) to facilitate the design and testing of regular expressions.
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Use it online! |
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The power of this tag also comes from its versatility to accept input text from various sources, like direct string, file on the disk, page on the Net or text between the opening and closing tags. It can also output results directly, in a variable, a list or a query. This tag is a must for those who create robots and syntax or text analysers. |
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| CF_convertDate | It also comes in two flavors: a standard custom tag compatible with all ColdFusion versions, and a function for CF 5+. Both are included in the same package. |
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This tag is especially useful to straighten tables too wide to be printed or viewed in one screen and it alows more information to be given about each column, especially when data in column is very straight. |
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CF_PictureFrame does not replace the original image but rather adds a frame around it, adjusting the frame size as required to fit around the picture. Comes with sample code and the Frame Builder shown in examples.
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List all datasources in your server, tables in your datasources, columns in your tables, names, types, sizes, descriptions, indexes and more. A real power tool for developing versatile applications and maintenance tools on your datasources. |
Free demo version!
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