[flexcoders] Retry: Question for Doug McCune on Drag-drop component?
Sorry if this question should be better showing up at the flexcomponent group. I didn't have any luck there so far;) Suppose I am motivated enough to roll up my sleeves to do something like what McCune is doing here at tileUI.com: http://www.youtube.com/watch?v=T0N7tgF7OOM Just for the drag part to get started, am I better off implementing the darg-drop framework that Flex provide or should I start from the more basic mouseUp/mouseDown? I guess this question is for every Flex guru besides Doug;) I appreciate it.
[flexcoders] Retry: Question for Doug McCune on Drag-drop component?
Sorry if this question should be better showing up at the flexcomponent group. I didn't have any luck there so far;) Suppose I am motivated enough to roll up my sleeves to do something like what McCune is doing here at tileUI.com: http://www.youtube.com/watch?v=T0N7tgF7OOM Just for the drag part to get started, am I better off implementing the darg-drop framework that Flex provide or should I start from the more basic mouseUp/mouseDown? I guess this question is for every Flex guru besides Doug;) I appreciate it.
Re: [flexcoders] Retry: Question for Doug McCune on Drag-drop component?
For basic dragging stuff, here's typically what I do. Have a mouse down listener on whatever component you want to drag. On mouse down you keep track of the coordinates where the user pressed. Then you add a mouse move listener to the system manager. Also add a mouse up listener to system manager. Then when the user moves the mouse (which you catch with the system manager listener), perform the calculation of how far from the original mouse down position the mouse is and move the component to the right place. Then when you catch the mouse up event (again, from system manager), you remove the mouse move listener and you're done. See the code in the Panel class in the Flex framework for an example of this type of dragging. The big thing to know is that you want to use mouse move and mouse up events from the system manager, not from the component itself. If you use the component itself you'll end up losing the mouse movement if the user drags quickly off the component, or you might get stuck in endless dragging if the mouse is released while not over the component. You should also probably have a listener for when the mouse leaves the stage and stop dragging at that point too, since not doing that can make the drag operation continue after the release the mouse (if they move the mouse off your app and the release). Doug On Tue, Sep 23, 2008 at 12:30 PM, gwangdesign [EMAIL PROTECTED] wrote: Sorry if this question should be better showing up at the flexcomponent group. I didn't have any luck there so far;) Suppose I am motivated enough to roll up my sleeves to do something like what McCune is doing here at tileUI.com: http://www.youtube.com/watch?v=T0N7tgF7OOM Just for the drag part to get started, am I better off implementing the darg-drop framework that Flex provide or should I start from the more basic mouseUp/mouseDown? I guess this question is for every Flex guru besides Doug;) I appreciate it.
Re: [flexcoders] Retry: Question for Doug McCune on Drag-drop component?
Doug, you're a store (and distribution point) of much useful Flex kung-fu :) I didn't think of doing that last time I was messing with drag-n-drop, but it's a great idea. On Wed, Sep 24, 2008 at 6:02 AM, Doug McCune [EMAIL PROTECTED] wrote: For basic dragging stuff, here's typically what I do. Have a mouse down listener on whatever component you want to drag. On mouse down you keep track of the coordinates where the user pressed. Then you add a mouse move listener to the system manager. Also add a mouse up listener to system manager. Then when the user moves the mouse (which you catch with the system manager listener), perform the calculation of how far from the original mouse down position the mouse is and move the component to the right place. Then when you catch the mouse up event (again, from system manager), you remove the mouse move listener and you're done. See the code in the Panel class in the Flex framework for an example of this type of dragging. The big thing to know is that you want to use mouse move and mouse up events from the system manager, not from the component itself. If you use the component itself you'll end up losing the mouse movement if the user drags quickly off the component, or you might get stuck in endless dragging if the mouse is released while not over the component. You should also probably have a listener for when the mouse leaves the stage and stop dragging at that point too, since not doing that can make the drag operation continue after the release the mouse (if they move the mouse off your app and the release). Doug On Tue, Sep 23, 2008 at 12:30 PM, gwangdesign [EMAIL PROTECTED] wrote: Sorry if this question should be better showing up at the flexcomponent group. I didn't have any luck there so far;) Suppose I am motivated enough to roll up my sleeves to do something like what McCune is doing here at tileUI.com: http://www.youtube.com/watch?v=T0N7tgF7OOM Just for the drag part to get started, am I better off implementing the darg-drop framework that Flex provide or should I start from the more basic mouseUp/mouseDown? I guess this question is for every Flex guru besides Doug;) I appreciate it. -- Flexcoders Mailing List FAQ: http://groups.yahoo.com/group/flexcoders/files/flexcodersFAQ.txt Alternative FAQ location: https://share.acrobat.com/adc/document.do?docid=942dbdc8-e469-446f-b4cf-1e62079f6847 Search Archives: http://www.mail-archive.com/flexcoders%40yahoogroups.comYahoo! Groups Links -- Therefore, send not to know For whom the bell tolls. It tolls for thee. http://flex.joshmcdonald.info/ :: Josh 'G-Funk' McDonald :: 0437 221 380 :: [EMAIL PROTECTED]
Re: [flexcoders] Retry: Question for Doug McCune on Drag-drop component?
Thanks :) For the dragging stuff, just check out the source of Panel. There's code in there that I often copy/paste into my own stuff to handle dragging the exact same way. On Tue, Sep 23, 2008 at 5:25 PM, Josh McDonald [EMAIL PROTECTED] wrote: Doug, you're a store (and distribution point) of much useful Flex kung-fu :) I didn't think of doing that last time I was messing with drag-n-drop, but it's a great idea. On Wed, Sep 24, 2008 at 6:02 AM, Doug McCune [EMAIL PROTECTED] wrote: For basic dragging stuff, here's typically what I do. Have a mouse down listener on whatever component you want to drag. On mouse down you keep track of the coordinates where the user pressed. Then you add a mouse move listener to the system manager. Also add a mouse up listener to system manager. Then when the user moves the mouse (which you catch with the system manager listener), perform the calculation of how far from the original mouse down position the mouse is and move the component to the right place. Then when you catch the mouse up event (again, from system manager), you remove the mouse move listener and you're done. See the code in the Panel class in the Flex framework for an example of this type of dragging. The big thing to know is that you want to use mouse move and mouse up events from the system manager, not from the component itself. If you use the component itself you'll end up losing the mouse movement if the user drags quickly off the component, or you might get stuck in endless dragging if the mouse is released while not over the component. You should also probably have a listener for when the mouse leaves the stage and stop dragging at that point too, since not doing that can make the drag operation continue after the release the mouse (if they move the mouse off your app and the release). Doug On Tue, Sep 23, 2008 at 12:30 PM, gwangdesign [EMAIL PROTECTED] wrote: Sorry if this question should be better showing up at the flexcomponent group. I didn't have any luck there so far;) Suppose I am motivated enough to roll up my sleeves to do something like what McCune is doing here at tileUI.com: http://www.youtube.com/watch?v=T0N7tgF7OOM Just for the drag part to get started, am I better off implementing the darg-drop framework that Flex provide or should I start from the more basic mouseUp/mouseDown? I guess this question is for every Flex guru besides Doug;) I appreciate it. -- Flexcoders Mailing List FAQ: http://groups.yahoo.com/group/flexcoders/files/flexcodersFAQ.txt Alternative FAQ location: https://share.acrobat.com/adc/document.do?docid=942dbdc8-e469-446f-b4cf-1e62079f6847 Search Archives: http://www.mail-archive.com/flexcoders%40yahoogroups.comYahoo! Groups Links -- Therefore, send not to know For whom the bell tolls. It tolls for thee. http://flex.joshmcdonald.info/ :: Josh 'G-Funk' McDonald :: 0437 221 380 :: [EMAIL PROTECTED]
