X-Git-Url: https://git.argeo.org/?a=blobdiff_plain;f=org.argeo.eclipse.ui%2Fsrc%2Forg%2Fargeo%2Feclipse%2Fui%2FEclipseUiUtils.java;h=fad0e0df9910208a0ad1599a85e6459c6334a3bd;hb=855f1746f97fb061b31644522c57ab558ee4a664;hp=52eaf9b8412fb97e47924df53646fffff6286847;hpb=f9432dc625d89fdc42acd4960545769bc513fb3b;p=lgpl%2Fargeo-commons.git

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 52eaf9b84..fad0e0df9 100644
--- a/org.argeo.eclipse.ui/src/org/argeo/eclipse/ui/EclipseUiUtils.java
+++ b/org.argeo.eclipse.ui/src/org/argeo/eclipse/ui/EclipseUiUtils.java
@@ -24,12 +24,49 @@ 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();
+	}
+
+	/**
+	 * Enables efficient call to the layout method of a composite, refreshing
+	 * only some of the children controls.
+	 */
+	public static void layout(Composite parent, Control... toUpdateControls) {
+		parent.layout(toUpdateControls);
+	}
+
+	//
+	// FONTS
+	//
+	/** Shortcut to retrieve default italic font from display */
+	public static Font getItalicFont(Composite parent) {
+		return JFaceResources.getFontRegistry().defaultFontDescriptor()
+				.setStyle(SWT.ITALIC).createFont(parent.getDisplay());
+	}
+
+	/** Shortcut to retrieve default bold font from display */
+	public static Font getBoldFont(Composite parent) {
+		return JFaceResources.getFontRegistry().defaultFontDescriptor()
+				.setStyle(SWT.BOLD).createFont(parent.getDisplay());
+	}
+
+	/** Shortcut to retrieve default bold italic font from display */
+	public static Font getBoldItalicFont(Composite parent) {
+		return JFaceResources.getFontRegistry().defaultFontDescriptor()
+				.setStyle(SWT.BOLD | SWT.ITALIC)
+				.createFont(parent.getDisplay());
+	}
+
 	//
 	// Simplify grid layouts management
 	//
@@ -139,6 +176,15 @@ public class EclipseUiUtils {
 	 * Create a label and a text field with password display for a grid layout,
 	 * the text field grabbing excess horizontal
 	 */
+	public static Text createGridLP(Composite parent, String label) {
+		return createGridLP(parent, label, null);
+	}
+
+	/**
+	 * Create a label and a text field with password display for a grid layout,
+	 * the text field grabbing excess horizontal. The given modify listener will
+	 * be added to the newly created text field if not null.
+	 */
 	public static Text createGridLP(Composite parent, String label,
 			ModifyListener modifyListener) {
 		Label lbl = new Label(parent, SWT.LEAD);
@@ -146,31 +192,20 @@ 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()
-				.setStyle(SWT.ITALIC).createFont(parent.getDisplay());
-	}
+	// MISCELLANEOUS
 
-	/** Shortcut to retrieve default bold font from display */
-	public static Font getBoldFont(Composite parent) {
-		return JFaceResources.getFontRegistry().defaultFontDescriptor()
-				.setStyle(SWT.BOLD).createFont(parent.getDisplay());
+	/** Simply checks if a string is not null nor empty */
+	public static boolean notEmpty(String stringToTest) {
+		return !(stringToTest == null || "".equals(stringToTest.trim()));
 	}
 
-	/** Shortcut to retrieve default bold italic font from display */
-	public static Font getBoldItalicFont(Composite parent) {
-		return JFaceResources.getFontRegistry().defaultFontDescriptor()
-				.setStyle(SWT.BOLD | SWT.ITALIC)
-				.createFont(parent.getDisplay());
+	/** Simply checks if a string is null or empty */
+	public static boolean isEmpty(String stringToTest) {
+		return stringToTest == null || "".equals(stringToTest.trim());
 	}
 }
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