Hi Arthur,
I appreciate your help. I will definitely try the
editable grid & the gwt dnd project. Mean while do you want to take a
look at my immature piece of code where i have tried to implement a
drag & drop that didn't work as expected ? (The draggable object is
moving in the correct direction but not synchronized with the mouse
cursor)
Well the code snippet is ,
"
public class DragListener implements MouseListener{
private boolean blnFlag = false;
private Widget w;
private int x,y;
public DragListener(Widget w){
this.w = w;
DOM.setStyleAttribute(w.getElement(),"position","absolute"); //
Let
the object float
}
public void onMouseDown(Widget sender, int x, int y) {
DOM.setCapture(w.getElement()); // Will capture mouse events
blnFlag = true;
this.x = x - w.getAbsoluteLeft(); // The offset of cursor
inside the
object area
this.y = y - w.getAbsoluteTop();
}
public void onMouseEnter(Widget sender) {
}
public void onMouseLeave(Widget sender) {
}
public void onMouseMove(Widget sender, int x, int y) {
if(blnFlag == true){
DOM.setIntStyleAttribute(w.getElement(), "left", x - this.x); //
move object
DOM.setIntStyleAttribute(w.getElement(), "top", y - this.y);
}
}
public void onMouseUp(Widget sender, int x, int y) {
if(blnFlag == true){
blnFlag=false;
DOM.releaseCapture(w.getElement());
DOM.setIntStyleAttribute(sender.getElement(), "left", x -
this.x);
DOM.setIntStyleAttribute(sender.getElement(), "top", y -
this.y);
}
}
}
Thanks,
Hazem
On Dec 17, 6:57 pm, "Arthur Kalmenson" <[email protected]> wrote:
> For an editable grid, take a look at the
> PagingScrollTable:http://code.google.com/docreader/#p=google-web-toolkit-incubator&s=go...
>
> Drag and drop capabilities can be done with the gwt-dnd
> project:http://code.google.com/p/gwt-dnd/. I haven't tried it myself.
>
> --
> Arthur Kalmenson
>
> On Wed, Dec 17, 2008 at 12:48 AM, Haz <[email protected]> wrote:
>
> > I am trying to build an editable grid for a spreadsheet application.
> > Can anyone suggest me a grid already available that serves my purpose
> > (the grid should be resizable, editable, multiselectable, scrollable).
>
> > If a good one is not available, i don't mind building one but do you
> > guys know of any in-depth GWT tutorial that would help me build custom
> > widgets with drag & drop capabilities.
>
> > Many Thanks,
> > Hazem
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