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===== Create windows =====

There are many level of windows that can be created in GroIMP, depending on the needs. 

==== Basic windows ====

The most common way of creating a new window is by invoking the "createPanel" of the currently used uitoolkit (Swingtoolkit in "normal" groimp mode). The method will create a Panel, register it to a new PanelSupport, then create a new WindowSupport to manage the PanelSupport.

A simple example to create a windows in your plugin is:

<code java>
public class CreateWindow {

public static Panel startPanel(Context ctx, Map params) {
		GraphManager graph = ctx.getWorkbench().getRegistry().getProjectGraph();
		UIToolkit ui = UIToolkit.get(ctx);
		Panel p = ui.createPanel(ctx, null, params);
		// Do anything on to fill the panel here
                // ...
                return p;
	}
}
</code>

You can then register your new panel (which start a window) in the GroIMP panel menu entries with adding in your ''plugin.xml'' file:

<code xml>
<ref name="ui">
    <ref name="panels">
	<panel name="YOUR PANEL NAME">
	    <exists name=".available" ref="/"/>
	        <object expr="de.grogra.YOUR_PACKAGE_NAME.CreateWindow.startPanel">
	            <var name="context"/>
		    <vars/>
	        </object>
	</panel>          
    </ref>
</ref>
</code>

Finally, you can customize the panel name and icon displayed in GroIMP by attributing some values in the ''plugin.properties''. /ui/panels/YOUR PANEL NAME.Name changes the name, and /ui/panels/YOUR PANEL NAME.Icon changes the icon.

In this example the panel is added to the menu entries in the _Panel_ section. Indeed, after starting GroIMP add all element of _/ui/panels_ into this menu entry. (see more on [[:01_user_documentation:06_graph:03_graphs:10_registry|GroIMP registry]]).

If you want your window to be openable from another menu than _panels_, you need to register it as a ''command''.

Example:

<code java>
public class CreateWindow {

public static void startPanelFromCommand(Item item, Object information, Context context) {
                GraphManager graph = context.getWorkbench().getRegistry().getProjectGraph();
		UIToolkit ui = UIToolkit.get(context);
		Panel p = ui.createPanel(context, null, Map.EMPTY_MAP);
                // Do anything on to fill the panel here
                // ...
		p.show(true, null);
	}
}
</code>

The window can then be added to the menu (YOUR_MENU_NAME>SUB_MENU) in the registry with:

<code xml>
<directory name="YOUR_MENU_NAME">
    <directory name="SUB_MENU">
	<panel name="YOUR PANEL NAME">
	    <command name="NEW WINDOW" run="de.grogra.YOUR_PACKAGE_NAME.CreateWindow.startWindowCommand"/>
    </directory>
</directory>
</code>



=== Dialog Window ===

The methods ''showChoiceDialog'', ''showDialog'', ''showInputDialog'', and ''showWaitMessage'' in ''de.grogra.pf.ui.Window'' enables to open a small dialog window.
It can be open from a registry ''command''.

Example: 

<code java>
public static void startInputDialogWindow(Item item, Object information, Context context) {
    I18NBundle thisI18NBundle = context.getWorkbench().getRegistry().getPluginDescriptor("de.grogra.plugin").getI18NBundle();
    Workbench.current().getWindow().showInputDialog(
	thisI18NBundle.getString ("panel.title"),
	thisI18NBundle.getString ("panel.message"),
	"varName");
}
</code>

=== File explorer ===

The method ''de.grogra.pf.ui.Window.chooseFile'' enables to open a file explorer that load the selected file.