I have a task where I need to segment a web page visually so that I may be able to calculate the distance between two segments of the web page at various levels of the DOM tree. In the simple way I want to be able to obtain the boxes that enclose the display of the pages on the screen. e.g. consider this image: Image to visual of DOM structure as on display
This I drew using Chrome, which provides for each DOM node the corresponding rectangle on the display of the page in the browser. How can I get these boxes in my program so that I can process the page based upon how it looks on the screen.
I was able to do so by using QtWebkeit. It provides for each level of DOM tree the geometry() method and also access to the CSS properties.
Related
I saw many articles and videos on how to do responsive design in flutter.
But they all have in common, that they show a standard web page with menu, pictures, text.
What I call "real" in the title, means a full interactive application, so with displaying tables of data, providing input fields and other input elements, showing charts, ... - so all the interaction of a "real" application, not just a web site.
Simple example: If I have a large data table on a desktop screen, it has to be different on a mobile screen to show data in a way, the user can read it and use it sensibly.
So, how do I make the app responsive for all screen sizes without having to implement something twice or have case distinctions all over the place?
Refractor codes into widgets. (very important to reduce boiler plates)
Create an idea on how the webpage will look like based on 12 grid system
In build method check for screen size and return layout based on the screen size.
Please note
The widgets should be responsive by itself based on the size available. For example a chart widget. It should build a chart within the space provided by its parent.
There may be instances where in desktop some elements are in a row and the same element will be in a column in mobile. So you can also write sections like banner section (define web and phone layout), about us section etc so its easier to manage
Use wrap widget to automatically bring widgets down based on screen size
Use BoxConstrains and max width to control a Containers max width
For tables you can use packages like responsive tables
Subject: Display custom icons instead of values in list views
Under the Classic interface the icons are working fine as described in the documentation. However, if I switch to Unified Interface they are not displayed anymore.
Inspecting the page (visually and in the generated html) it looks that the space is indeed reserved for the image as DIV. So I suspect the code behind the page is not able to find/retrieve the images when in Unified Interface even if I supply the full URL of the picture.
Did anybody else encountered similar problems when moving from Classic to UI interface?
We are in an on-premise installation.
What type is your image? Is it PNG, JPEG, or GIF.
In new UI it should only be PNG and that too of size 16*16.
Reference article to look into
Here's the issue, I build a special book reader/browser (For holy quran), my code behind loads the page and constructs how it should look. and then it should bind that look to a some kind of data-bindable custom control to view it properly. the problem is, the look differs from page to page, so I cannot bind to a certain control or wrap panel.
here's how it generally looks:
The decorative border top of the page is always there at any page, it indicates the part and chapter the viewer is in.
If you're starting a new chapter it have additional image under that decorative border or anywhere in the page (there can be multiple chapters in the same page) something like this
or this:
The normal text is not an issue, it's just a special font, however, I put each individual word in its own text block for reasons of user selection by word.
The issue here is, given the previous information, and knowing how random it is to place the decoration picture or the amount of words (text blocks) per page. how can I bind that to some kind of view to separate the view from the VM and Engine that builds the page.
my past solution was to actually build everything in the VM in a wrappanel built inside a scrollviewer having lots of textblocks and images according to the page. but that's naiive solution. I want to rebuild that in a more professional separated way. I also want to do this for Windows RT beside Windows phone so I need to reuse the code behind in a Portable class library.
I think all you need to do is slightly adjust your current design. So perhaps have a VM that represents the entire content, and that would have a Collection of say Pages or Sections. A second VM would represent the Page/Section, allowing you to create a property for the WrapPanel content (i.e. the words) and another property for the Header and or other things.
In the View you would have the scrollviewer and bind to the main VM collection. Then create another View or DataTemplate that represents the Page/Section.
You should be able to do this is a strict MVVM sense quite easily and it will be dynamic based on the content.
You could even cater for advanced scenarios where each section has a different template/view.
I'm using Centura / TeamDeveloper 6.1
Is it possible to make the content of a Dialog / Window dynamic?
For example if I load a table inside a tab it is dynamic because the child table always takes the size of the tab.
I want the same behaviour with buttons etc. not that they always change size but that they move their position to stay like in the center no matter how far I resize the window without me having to write a function that calculates everything and that moves them around.
In C++ / QT I would use Layouts.
As it is right now I maximize the Window but the design is stuck on the left side.
Team Developer does not offers support this feature in native way.
however you can design your app to capturing when the formwindow size change and so your visual objects can change their position according the new container size.
there are some samples demonstrating this behaviour.
please, do a search here for "resize" samples
I'm new to Joomla, but I figured out how to set it up and create my first joomla template which only includes the content area and a top menu.
Now I want to display a different images on every page.
I do not know how to do it in Joomla, because as far as I know I can only write articles (with images in them, which is not what I want) and include them in the Menu Items as Layout: Article.
Can I somehow create my own parameters for the Layout: Article and use them in my template? The cms user should be able to decide which image to show on each "page".
You can do it by means of a module. You can define for which menu position each module is visible. You can put any article inside a module with a Article as Module extension
You can find a lots of modules at http://extensions.joomla.org/ which you can install from your administrator and enable it on a position to show different images on different pages.
check this page
http://extensions.joomla.org/extensions/photos-a-images/images-rotators
Header Image
https://support.pillwax.com/open-source/doku.php?id=joomla:header_image
This allows you to place your images in a folder and name them according to the page. You can match to articleid, menuid, category, section, or even show a rotating random image.
You would then just need to publish the module in the correct position.