-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 On 06/30/2015 12:44 PM, Козлов Кирилл wrote: > Hello, > > Please give me an advice on what Clutter objects should be used > for implementing diagram editor. Objects on the diagram can be > connected via lines, can be moved, deleted (like it's done in Dia, > for example). Any help or shared experience will be appreciated. >
Hi, Kirill I've done the "how to connect objects graphically" problem recently in my project rainbow-lollipop [0] I don't know if this is the nonplusultra way, but what i did was: I defined myself a custom constraint which i called "ConnectorConstraint". Let's assume we have 3 actors: Actor A -> An actor that we want to connect with another Actor B -> The actor that we want to connect A to Connector -> An actor that draws a connection (e.g. a line) between the two The ConnectorConstraint is initialized with the Actors A and B. Everytime the allocations of A or B change, the constraint will allocate itself appropiately between A and B. We assign the Connector-Actor the ConnectorConstraint and voilá, We have connectors. Releveant sourcecode can be found here [1] in lines 38 to 127 Hope this helps, Grindhold [0] https://github.com/grindhold/rainbow-lollipop [1] https://github.com/grindhold/rainbow-lollipop/blob/master/src/nodes.vala -----BEGIN PGP SIGNATURE----- Version: GnuPG v2 iQIcBAEBCAAGBQJVkojhAAoJEBuqgJs6izSEAtMQAIyISJzA0EANiPLVvZC7uw9f 2S5NOS4nGTEU+BBlLWeA1nhqMvD18rrPSS372K5AZDsQBTdTUzB/EEK4IHw1kJti ksdpyWD67pP84c/sDV50HCOP3Djx33XbAvJ8bPKzSD1HeJE+rulT/cFsGacoZj1F erjnl19OWrX6EGKRt8USJr/2CwJVqmvVYmHpH2jvsE9mPFHf0iDebuU/EMHTneWB 6B9EIEwejURKzUs4JWi+g7BjUfd8ISuBGpY45PYGUqz7n8bvPhIuKGkSQqI5Tn7N 70U+7ocnH7PVJleilZLehBl8fJk2saBypnF3qrQ2ttgubLJrGVveXKTc9M3IA7a0 bP97YEeB4Q5XpnDuYpgFaOPfXf4pbdOWGl1VVZCOqm7FUgxdCGg6D5I4TgGAIs83 3fZIvPK2VyNNhfZAWrD0I9XNjhDIkKCsDF6ZEer6rdywumHokQUFSyKDCbTTw+T1 CDVMLI4n5eFOVY1oXYFGmmMvyNIPVQ5dgMcpluukyom5cBjPZCYKeUjDdRBysS6X /K3BeHgvkrYpoFCXRwGMk8SLEz/HUV4cCuGfNfASHkkW8388JPvpmQtP27atJgvv YzQz2PjL7Z2e/e/MzENSgvscAW/IZZatG6yplf7NYidDZLTQ46BTehzr7OWsHPjY 2Xvwo8Y2UhhN01VD6+Z2 =W5gC -----END PGP SIGNATURE----- _______________________________________________ vala-list mailing list vala-list@gnome.org https://mail.gnome.org/mailman/listinfo/vala-list