This will show you what dialogs are running and what interfaces are available, as well as what is available to call in the &kommander; special interface to internals. In the explanation of &DCOP; here remember that &DCOP; is used internally by KDE applications (replaced with DBUS in KDE4) and it is very useful. Have a look at <command>kdcop</command> by pressing Alt-F2 and typing it in a run dialog. Here you can explore everything running. Now back to &DCOP; in &kommander;.
This will show you what dialogs are running and what interfaces are available, as well as what is available to call in the &kommander; special interface to internals. In the explanation of &DCOP; here remember that &DCOP; is used internally by TDE applications (replaced with DBUS in KDE4) and it is very useful. Have a look at <command>kdcop</command> by pressing Alt-F2 and typing it in a run dialog. Here you can explore everything running. Now back to &DCOP; in &kommander;.
@ -78,7 +78,7 @@ Okay, you're sold you don't want a frustrated email from me asking you to please
<sect2 id="signals-slots">
<title>Signals and Slots</title>
<para>
One of the very useful features inherited from Qt Designer was signals and slots. Of course the interface has been redesigned in an attempt to make it friendly to &kommander;. Signals and slots are internal event control for Qt/KDE applications. We try to make it so you don't have to know the difference between C++ data types, but if you use the new function to create connections on the fly it is handy to be able to copy that information from the connection tool. Let's look at what all this means. Something happens in one of you widgets. It could be click on, double clicked, have it's value changed, something selected or a menu could be requested. That is just some of the possible events that would enable a signal to be sent. You may want to change the list in a ListBox if a new selection is made in a ComboBox. That's a useful feature in a sophisticated application and the only way to do it without having to press a button next is to have a signal connected to a slot. That slot could be in a script or button. When the slot receives the signal it goes about doing what it was told. There is a tool to edit these connections. Pay attention when do this as there are a good number of inherited signals and slots. Telling a script which is invisible when the dialog is run to adjust it's size by accident when you meant to execute will have you wondering what happened.
One of the very useful features inherited from Qt Designer was signals and slots. Of course the interface has been redesigned in an attempt to make it friendly to &kommander;. Signals and slots are internal event control for TQt/TDE applications. We try to make it so you don't have to know the difference between C++ data types, but if you use the new function to create connections on the fly it is handy to be able to copy that information from the connection tool. Let's look at what all this means. Something happens in one of you widgets. It could be click on, double clicked, have it's value changed, something selected or a menu could be requested. That is just some of the possible events that would enable a signal to be sent. You may want to change the list in a ListBox if a new selection is made in a ComboBox. That's a useful feature in a sophisticated application and the only way to do it without having to press a button next is to have a signal connected to a slot. That slot could be in a script or button. When the slot receives the signal it goes about doing what it was told. There is a tool to edit these connections. Pay attention when do this as there are a good number of inherited signals and slots. Telling a script which is invisible when the dialog is run to adjust it's size by accident when you meant to execute will have you wondering what happened.
</para>
<para>
To access the connection tool you can open it by right clicking anywhere on the dialog and selecting it. Click the menu and you will see a list of connections made at the bottom. Above that are two lists of signals and slots and above them the respective sender and receiver are selected. An easy way to make connections is visually. Look at the toolbar or the Tools menu. There are three items grouped there. A pointer, signals and slot connections and the tab order or widgets. Selecting this sets connection mode for the curios. Click on your widget to send the signal and drag it to your widget to receive it in a slot. As you do this you will see a line and drop indications on the widget under the mouse. The StatusBar on the Editor will tell you what is being connected.
@ -359,7 +359,7 @@ There is more going on, like checking for duplicate keys, but this is the core.
As of Kommander 1.3 Kommander automatically makes KParts using the libkommander_part.la. In addition to this there is a KPart plugin which allows Kommander to load plugins. Being curious developers we tried loading a Kommander part into Kommander. Why do that? Why not? The results were interesting and are demonstrated here. One interesting thing is the parent part can directly access all of the child part. While this is handy it has a down side. Any child widget being called with the same name as a parent widget will cause a lock up! In addition to that the DCOP interface is generated all over again for the part which wipes out the parent interface and disables most of the old parser functionality as well as Kommander specific DCOP to the parent. This is too difficult to fix for the remaining life of the KDE3 version. Even with these limitations and cautions this can be useful, if used carefully. The example files to look at this are in the current examples as kpartmwframe.kmdr and kpartpart.kmdr. Remember you will need the KPart plugin to fully run this example.
</para>
<para>
You can also load KMail, KOrganizer and many other KDE applications right into Kommander, of course without the problems. KHTML and KDE's file manager widgets seem not to have some functionality but there is a special KHTML plugin if you really want to incorporate a browser.
You can also load KMail, KOrganizer and many other TDE applications right into Kommander, of course without the problems. KHTML and KDE's file manager widgets seem not to have some functionality but there is a special KHTML plugin if you really want to incorporate a browser.
Darrell Anderson
13 years ago