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README
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## Readme document for QtDockTile library
Using issue of docks on desktops today become more and more popular. There is at least 3 popular solutions of this issue: MacOS Dock, Windows 7 taskbar and Unity launchers from Ubuntu. Also there is icon tasks in KDE 4.8.
Looking at this, there is a need to cross-platform library for the work with all this docks.
### Common issues for docks
* Badges
* Progress indicator
* Menu
* Alarms
All this things are basics and they are fully supported in Win7, MacOS and Ubuntu. On this basis QtDockTile API will be built and all platform-dependent extensions will be added by the time of development and they won't be essentials.
### Architecture of library and using in your code
For maximum flexibility and extensibility realization in every is usual Qt plugins. It allows adding support of new API without recompiling all the library, and in the case of inability of using any realization, plugin just won't work. The plugins are booted by the special singleton-manager. Every plugin inform this manager if it can work in this enviroment or not, resulting in thing that manager can call methods in only that plugins, which are allowed in this enviroment.
User just work with simle class QtDockTile that is front-end to this manager. So you can create any number of QtDockTile instance.
For the realization of dock menu Qt QMenu will be used. It is important to know about restrictions on the platform, which you use.
Simple example in code:<br />
<code>
<br />
m_tile = new QtDockTile(this); <br />
m_tile->setMenu(ui->menu);<br />
connect(ui->pushButton, SIGNAL(clicked()), m_tile, SLOT(alert()));<br />
m_tile->setBadge(123); <br />
connect(ui->horizontalSlider, SIGNAL(valueChanged(int)), m_tile, SLOT(setProgress(int)));
<br />
</code>
As you can see, it is very simple!
### Restrictions
#### For Unity
For correct work of API existence of /usr/share/applications \*.desktop icon is essential.
* Badges are only digitals and not less than 0. Else it prints 0
* Exported menu doesn't shows submenu, so it is better not to use them
* If menu is exported in appmenu, it completely doesn't appear
* There is a bug in realization of DBusMenuExplorer, so check state is inverted
#### For Windows
* Only 2 symbols as badges
* Last files from jump lists disappear
* Actions are not supported: switch keys and inactive actions
* Submenu is not supported
### Conclusion
If you want menu to be exported for sure it has to satisfy this requirements:
* No submenu
* No checkable or inactive items
* Little amount of items
* No change after it is setted by setMenu
Two more advices:
* Correct work of dock is guaranteed only in case of single application, so use it with QtSingleApplication or anything like it
* In badges you have to use only positive numbers, that are less than 100
In other cases something may be unavailable on some platform.
All code are licensed under LGPL licence.