I want to increase the (height) size and change the color of a spark accordion header, similarly I want to change the color of a spark panel header. Can I do this through mxml properties and css or will I need to use a custom skin?
I recommend creating a custom skin. That was the way Spark was designed to be customized. Specific styles and the sort are almost an afterthought.
Related
We are on 6.5.3. Like in CSS/bootstrap, there is a property to add the spacing between grid columns. I would like to know if there is any way to achieve this in AEM Grid? We need to add some gaps to ensure content doesn't stick together when content is placed inside the column grids. Modifying the grid.less is an option that we are thinking of as last resort, but we would like to check if there is a declarative way from the AEM grid, for example specifying the spacing in some property.
There is no property for padding/margin in AEM grids by default, this is the reason we have grid.less file in place OOTB. But,you can edit and add a property in your templates for that.
Although, this is not the best approach
If you want to add default spacing in all the grids, you have to do it in grid.less.
This would be even worse, as these changes would be global
A Better Approach
I would suggest to create a spacer component instead of adding a default padding in all grids. That way, when you don't want padding in your grids you wouldn't get stuck again.
Content Authors can just add a spacer component(or multiple) in between different components depending upon the size of padding/margin you need.
Customizing AEM Grid
I want to tweak the existing style at runtime, specifically QStyle::PM_ToolBarIconSize. Can this be done? As far as I can tell, you can only inherit QStyle and override pixelMetric().
Edit 1: In the specific case of QStyle::PM_ToolBarIconSize, I could use QToolBar::setIconSize, but that would set the icon size for just a single toolbar instance. I want to change the underlying style hint to affect all toolbars everywhere with one fell swoop. And QStyle::PM_ToolBarIconSize may not be the only style I want to tweak, it's just the first one I'm looking at that just so happens to have a "change this instance's icon size" function.
Edit 2: I can't just make a new style subclass because the current style is already a custom style based on style sheets. There are several styles that a user can choose from. I don't want to create a bunch of new styles just so I can tweak a couple of toolbar icon or menu height size settings.
This is the exact purpose of QProxyStyle.
Why not overriding QStyle then? Your subclass would return an icon size (via pixelMetric) which depends on a settable parameter of your QStyle.
As Qt does not have a dynamic QStyle mechanism, it is better to create a new style instance with the changed icon size, then set it to the QApplication, rather than altering the current style.
How can we customize the background and font color of a single instance of a tooltip for one component? (Without changing all tooltips in the application.)
This is needed for the HALO component set (4.1 SDK), not Spark (css methods preferred).
Created a named style, using styles that are applicable to the ToolTip component; and when you create the ToolTip specify that style.
You can read these instructions for customizing a ToolTip.
Basically, listen to the toolTipShown event and set the styleName on the toolTip.
I need to externalize the styling of a scroller. Is is possible to set the color of the track without assigning a specific .png in a skin? Thanks in advance.
I was able to accomplish this by creating a skin for the scroller and add styles with skins if needed to each component, as I was specifically trying to change the color of the scroll track.
I am new to Flex. I am trying to add a scroller in my main application/windows.
Is that possible?
I found out it is possible to add scoller bars in DataGrid, like horizontalScrollPolicy="on".
How to implement it in containers like Group,Panel and etc?
Thanks
The answer differs between flex 4 (spark) components and flex 3 (halo) container components. For spark components such as Groups, you need to wrap your group in a Scroller component to get scrollbars to appear when all of the group's content cannot be viewed. Halo container components, such as Canvas, have built in support for scrollbars, meaning they should show up automatically when all of the canvas's content cannot be viewed. Hope that helps.
The Application tag also has horizontalScrollPolicy and verticalScrollPolicy properties.
http://livedocs.adobe.com/flex/3/langref/mx/core/Container.html#horizontalScrollPolicy
http://livedocs.adobe.com/flex/3/langref/mx/core/Container.html#verticalScrollPolicy
In the Spark architecture, you want to look at the Scroller class. This is a good tutorial:
http://www.adobe.com/devnet/flex/articles/flex4_viewport_scrolling.html