--- /dev/null
+package org.argeo.eclipse.ui;
+
+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();
+ }
+
+ /**
+ * 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
+ //
+ public static GridLayout noSpaceGridLayout() {
+ return noSpaceGridLayout(new GridLayout());
+ }
+
+ public static GridLayout noSpaceGridLayout(int columns) {
+ return noSpaceGridLayout(new GridLayout(columns, false));
+ }
+
+ public static GridLayout noSpaceGridLayout(GridLayout layout) {
+ layout.horizontalSpacing = 0;
+ layout.verticalSpacing = 0;
+ layout.marginWidth = 0;
+ layout.marginHeight = 0;
+ return layout;
+ }
+
+ public static GridData fillWidth() {
+ 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
+ *
+ * @param parent
+ * the parent composite
+ * @param label
+ * the label to display
+ * @param modifyListener
+ * a {@link ModifyListener} to listen on events on the text, can be
+ * null
+ * @return the created text
+ *
+ */
+ // FIXME why was this deprecated.
+ // * @ deprecated use { @ link #createGridLT(Composite, String)} instead
+ // @ Deprecated
+ public static Text createGridLT(Composite parent, String label, ModifyListener modifyListener) {
+ Label lbl = new Label(parent, SWT.LEAD);
+ lbl.setText(label);
+ lbl.setLayoutData(new GridData(SWT.RIGHT, SWT.CENTER, false, false));
+ Text txt = new Text(parent, SWT.LEAD | SWT.BORDER);
+ txt.setLayoutData(new GridData(SWT.FILL, SWT.CENTER, true, false));
+ if (modifyListener != null)
+ txt.addModifyListener(modifyListener);
+ return txt;
+ }
+
+ /**
+ * Create a label and a text field for a grid layout, the text field grabbing
+ * excess horizontal
+ */
+ public static Text createGridLT(Composite parent, String label) {
+ return createGridLT(parent, label, null);
+ }
+
+ /**
+ * Creates one label and a text field not editable with background colour of the
+ * parent (like a label but with selectable text)
+ */
+ public static Text createGridLL(Composite parent, String label, String text) {
+ Text txt = createGridLT(parent, label);
+ txt.setText(text);
+ txt.setEditable(false);
+ txt.setBackground(parent.getBackground());
+ return txt;
+ }
+
+ /**
+ * 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);
+ lbl.setText(label);
+ 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 (modifyListener != null)
+ txt.addModifyListener(modifyListener);
+ return txt;
+ }
+
+ // MISCELLANEOUS
+
+ /** Simply checks if a string is not null nor empty */
+ public static boolean notEmpty(String stringToTest) {
+ return !(stringToTest == null || "".equals(stringToTest.trim()));
+ }
+
+ /** 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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projects / lgpl / argeo-commons.git / blobdiff