Small UI enhancements

[lgpl/argeo-commons.git] / org.argeo.eclipse.ui / src / org / argeo / eclipse / ui / EclipseUiUtils.java

diff --git a/org.argeo.eclipse.ui/src/org/argeo/eclipse/ui/EclipseUiUtils.java b/org.argeo.eclipse.ui/src/org/argeo/eclipse/ui/EclipseUiUtils.java
index 06f569dce7c216467543d3a4dbfe90fed8c9cf2e..f3979d074e94fbd77f8f79e646ab4ca3395b634b 100644 (file)
--- a/org.argeo.eclipse.ui/src/org/argeo/eclipse/ui/EclipseUiUtils.java
+++ b/org.argeo.eclipse.ui/src/org/argeo/eclipse/ui/EclipseUiUtils.java
@@ -19,16 +19,24 @@ import org.eclipse.jface.resource.JFaceResources;
 import org.eclipse.swt.SWT;
 import org.eclipse.swt.events.ModifyListener;
 import org.eclipse.swt.graphics.Font;
+import org.eclipse.swt.layout.FormAttachment;
+import org.eclipse.swt.layout.FormData;
 import org.eclipse.swt.layout.GridData;
 import org.eclipse.swt.layout.GridLayout;
 import org.eclipse.swt.widgets.Composite;
+import org.eclipse.swt.widgets.Control;
 import org.eclipse.swt.widgets.Label;
 import org.eclipse.swt.widgets.Text;
 
 /** Utilities to simplify UI development. */
 public class EclipseUiUtils {
-       
-       
+
+       /** Dispose all children of a Composite */
+       public static void clear(Composite composite) {
+               for (Control child : composite.getChildren())
+                       child.dispose();
+       }
+
        //
        // Simplify grid layouts management
        //
@@ -48,23 +56,46 @@ public class EclipseUiUtils {
                return grabWidth(SWT.FILL, SWT.FILL);
        }
 
+       public static GridData fillWidth(int colSpan) {
+               GridData gd = grabWidth(SWT.FILL, SWT.FILL);
+               gd.horizontalSpan = colSpan;
+               return gd;
+       }
+
        public static GridData fillAll() {
                return new GridData(SWT.FILL, SWT.FILL, true, true);
        }
 
+       public static GridData fillAll(int colSpan, int rowSpan) {
+               return new GridData(SWT.FILL, SWT.FILL, true, true, colSpan, rowSpan);
+       }
+
        public static GridData grabWidth(int horizontalAlignment,
                        int verticalAlignment) {
                return new GridData(horizontalAlignment, horizontalAlignment, true,
                                false);
        }
 
-       
-       
-       
-       
+       //
+       // Simplify Form layout management
+       //
+
+       /**
+        * Creates a basic form data that is attached to the 4 corners of the parent
+        * composite
+        */
+       public static FormData fillFormData() {
+               FormData formData = new FormData();
+               formData.top = new FormAttachment(0, 0);
+               formData.left = new FormAttachment(0, 0);
+               formData.right = new FormAttachment(100, 0);
+               formData.bottom = new FormAttachment(100, 0);
+               return formData;
+       }
+
        /**
-        * Create a label and a text field for a grid layout, the text field grabbing
-        * excess horizontal
+        * Create a label and a text field for a grid layout, the text field
+        * grabbing excess horizontal
         * 
         * @param parent
         *            the parent composite
@@ -122,11 +153,15 @@ public class EclipseUiUtils {
                lbl.setLayoutData(new GridData(SWT.RIGHT, SWT.CENTER, false, false));
                Text txt = new Text(parent, SWT.LEAD | SWT.BORDER | SWT.PASSWORD);
                txt.setLayoutData(new GridData(SWT.FILL, SWT.CENTER, true, false));
-               if (txt != null)
+               if (modifyListener != null)
                        txt.addModifyListener(modifyListener);
                return txt;
        }
 
+       //
+       // FONTS
+       //
+
        /** Shortcut to retrieve default italic font from display */
        public static Font getItalicFont(Composite parent) {
                return JFaceResources.getFontRegistry().defaultFontDescriptor()