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This function does not handle the event itself, but rather, it calls an event handlerbased on the type of event delivered, and sends an acknowlegement based on whether the event was accepted or ignored.

When an event occurs, Qt creates an event object to represent it by constructing an instance of the appropriate QEvent subclass, and delivers it to a particular instance of QObject (or one of its subclasses) by calling its event() function.

Some events like key events and mouse events come from window system, while some others originate from within application. In a Qt based application, there are different sources of events. A Qt application is event loop-based, which is basically a program structure which allows events to be prioritized, queued and dispatched to application objects. The Qt class QEvent encapsulates notion of low level events like mouse events, key press events, action events, etc. Makehuman is a GUI based, interactive, Qt application in which objects interact by sending messages to each other. General structure in MH can be represented as: !IMAGE!Pictures/mh-inheritance.png!/IMAGE!īasics of event handling in Makehuman: = mhmain.MHApplication inherits from this application too for handling of gui content.e So an object is either added to one taskview, or the application, not two different taskviews.Īpart from root application, there is another application (type qtui.Application) which implements MH gui structures using Qtlibraries. Īn object can only be added to one context. Visiblilty can be disabled by setting the visibility flag on objects but an object that is not added to a currently visible taskview, or the application, is not visible, even if its visibility flag is set positive. Thus objects like human and all proxies such as clothes are added to theapplication,because they should always be visible. Objects added to root applicationare always visible. For example, a skeleton added to the skeleton chooser is only visible when the skeleton chooser taskview is visible. Objects added to a taskview are only visible if the taskview is visible. Objects (guicommon.Object) can be added/removed to/from a taskview. In context of MakeHuman interface, Category objects constitute the upper row of tabs while taskview objects constitute the lower row of tabs. Taskview objects are specialised view objects with a panes and tab. A Category (gui3d.Category) is a specialised view object which contains multple taskiew objects (gui3d.TaskView).

A tab is a view, for example, the main application is a view. Mhmain.MHApplication inherits from root application to constructmain application. Every added object has an openGL counterpart. Objects added to root application are always visible in the canvas. These objects can be added/removed to/from the root application. There is a root application (type gui3d.Application) that handles rendering of objects (guicommon.Object).

IOBSERVE ADD OBJECTS FOLDER CODE

2.6.6 =Īpplication design and Code overview Structural Organization of MakeHuman.

2.5 Application Design Notes from IRC Chat with Thanassis.

2.4 The MakeHuman Graphical User Interface (GUI):.

1.1 Structural Organization of MakeHuman.

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