SWT: grid layout

Public static void showgridlayout (shell ){
Gridlayout = new gridlayout ();
// Set the number of grid Columns
Gridlayout. numcolumns = 3;
// Set the mesh width.
Gridlayout. makecolumnsequalwidth = true;
// Set the whitelist and interval
Gridlayout. verticalspacing = 10; // vertical interval
Gridlayout. horizontalspacing = 10; // horizontal interval

Shell. setlayout (gridlayout );
New button (shell, SWT. Push). settext ("B1 ");
New button (shell, SWT. Push). settext ("wide button 2 ");
New button (shell, SWT. Push). settext ("button 3 ");
New button (shell, SWT. Push). settext ("B4 ");
New button (shell, SWT. Push). settext ("button 5 ");
New button (shell, SWT. Push). settext ("B6 ");

// use the griddata object
// method 1
button button1 = new button (shell, SWT. push);
button1.settext ("button");
griddata = new griddata (); // create a griddata object
griddata. horizontalalignment = griddata. fill; // set the horizontal filling mode to full cells
griddata. grabexcesshorizontalspace = true; // sets the horizontal preemption mode
// sets the cell alignment mode
// sets the horizontal alignment
griddata. horizontalalignment = SWT. beginning | SWT. left; // left alignment. The default value is SWT. beginning
// SWT. center: center horizontally
// SWT. end; or SWT. right: Right
// SWT. fill horizontally fills the entire cell

// The default vertical alignment mode is SWT. center
griddata. verticalalignment = SWT. center;
// SWT. beginning or SWT. top alignment
// SWT. center vertical center
// SWT. end or SWT. bottom alignment of bottom
// SWT. fill vertically fills the entire cell

// set the indent size
griddata. horizontalindent = 20; // set the horizontal indent to 20 pixels
griddata. verticalindent = 20; // set the vertical indent pixel size
// set the cell cross-row and cross-Column Display
griddata. horizontalspan = 2; // set to horizontally span two cells
griddata. horizontalalignment = SWT. fill;
griddata. verticalspan = 2; // set to vertically span two cells
griddata. verticalalignment = SWT. fill;
// sets the preemption mode for the cell space.
griddata. grabexcessverticalspace = true; // sets the vertical preemption
griddata. grabexcesshorizontalspace = true; // set horizontal preemption
// set the control size
// This attribute takes effect only when grabexcessverticalspace grabexcesshorizontalspace is true
griddata. minimumheight = 100; // small height
griddata. minimumwidth = 100; // minimum width
button1.setlayoutdata (griddata);

// Set the control size to change as the window changes, but only takes effect at the beginning.
Griddata. widthhint = 100; // set the width.
Griddata. heighthint = 100; // set the height.

// Use the griddata object
// Method 2
Button button2 = new button (shell, SWT. Push );
Button2.settext ("button ");
Button2.setlayoutdata (New griddata (griddata. horizontal_align_fill
| Griddata. grab_horizontal); // create with a constant, same as method 1
Button2.setlayoutdata (griddata); // sets the layout data of the button.

Shell. open ();
}