Yes but How to port the timeline (imagine porting blender3d to QML ?) : I was using QGraphicsView : If I have a lot of elements will it be smooth ?
Le 09/10/2011 17:24, Ville M. Vainio a écrit : > - I'm sure there will be a standard tree widget component, it's > mandatory for any serious toolkit > > - You will still be able to do custom drawing with QPainter, > http://doc.qt.nokia.com/qt5-snapshot/qsgpainteditem.html > > - I wouldn't use QAbstractItemModel for small-to-medium size models. > QML does not mandate (or even encourage) using it by any means. > > On Sun, Oct 9, 2011 at 5:28 PM, qtnext<[email protected]> wrote: >> Hi, >> >> I am planning to develop a non linear video system editor (After Effect, >> Final Cut Like)... The main Widget of this kind of software is the >> Timeline (composed of layers, in which you can add key frame, and on the >> left panel you can directly set value of the keyframes). you can see >> the curve between keyframe, hide layers, ... zoom, unzoom, scroll.. >> >> >> - I have develop similar software years ago : first Qt2 or 3 (don't >> remenber) : using Qpainter and adding removing visible items in the >> timeline on the fly... >> >> - Then I have do that for another software with QGraphicsView : Easy ! >> you add all the items in qgraphicsScene And Qt do all the job to manage >> the large number of items... I have a QtreeWidget to change property of >> each keyframe on the left... It was working fine ! But when you wants to >> customize some parts in the QtreeWidget it was not very easy ... >> >> - Now I plan to use Qt Quick /Qt5 (I know it's not ready to use now ... >> but it's a project for next year !) : >> I plan to replace all the widgets (QTreeWidget/QgraphicsWidget) by a Qml >> and QAbstractModel : it will be more flexible to use javascript, easier >> to break rectangular area, effects, .... But How can I do that in QML >> efficiently ? I will have a large numbers of items ... In short how to >> code what can be easily and efficiently done with QGraphicsView ? >> >> _______________________________________________ >> Qt5-feedback mailing list >> [email protected] >> http://lists.qt.nokia.com/mailman/listinfo/qt5-feedback >> _______________________________________________ Qt5-feedback mailing list [email protected] http://lists.qt.nokia.com/mailman/listinfo/qt5-feedback
