--- /dev/null
+package org.argeo.cms.swt;
+
+import java.util.HashMap;
+import java.util.Map;
+
+import org.argeo.api.cms.CmsStyle;
+import org.argeo.api.cms.CmsTheme;
+import org.argeo.api.cms.CmsView;
+import org.argeo.eclipse.ui.specific.EclipseUiSpecificUtils;
+import org.eclipse.swt.SWT;
+import org.eclipse.swt.events.SelectionListener;
+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.layout.RowData;
+import org.eclipse.swt.layout.RowLayout;
+import org.eclipse.swt.widgets.Button;
+import org.eclipse.swt.widgets.Composite;
+import org.eclipse.swt.widgets.Control;
+import org.eclipse.swt.widgets.Label;
+import org.eclipse.swt.widgets.Shell;
+import org.eclipse.swt.widgets.Text;
+import org.eclipse.swt.widgets.Widget;
+
+/** SWT utilities. */
+public class CmsSwtUtils {
+
+ /** Singleton. */
+ private CmsSwtUtils() {
+ }
+
+ public static CmsTheme getCmsTheme(Composite parent) {
+ CmsTheme theme = (CmsTheme) parent.getData(CmsTheme.class.getName());
+ if (theme == null) {
+ // find parent shell
+ Shell topShell = parent.getShell();
+ while (topShell.getParent() != null)
+ topShell = (Shell) topShell.getParent();
+ theme = (CmsTheme) topShell.getData(CmsTheme.class.getName());
+ parent.setData(CmsTheme.class.getName(), theme);
+ }
+ return theme;
+ }
+
+ public static void registerCmsTheme(Shell shell, CmsTheme theme) {
+ // find parent shell
+ Shell topShell = shell;
+ while (topShell.getParent() != null)
+ topShell = (Shell) topShell.getParent();
+ // check if already set
+ if (topShell.getData(CmsTheme.class.getName()) != null) {
+ CmsTheme registeredTheme = (CmsTheme) topShell.getData(CmsTheme.class.getName());
+ throw new IllegalArgumentException(
+ "Theme " + registeredTheme.getThemeId() + " already registered in this shell");
+ }
+ topShell.setData(CmsTheme.class.getName(), theme);
+ }
+
+ public static CmsView getCmsView(Control parent) {
+ // find parent shell
+ Shell topShell = parent.getShell();
+ while (topShell.getParent() != null)
+ topShell = (Shell) topShell.getParent();
+ return (CmsView) topShell.getData(CmsView.class.getName());
+ }
+
+ public static void registerCmsView(Shell shell, CmsView view) {
+ // find parent shell
+ Shell topShell = shell;
+ while (topShell.getParent() != null)
+ topShell = (Shell) topShell.getParent();
+ // check if already set
+ if (topShell.getData(CmsView.class.getName()) != null) {
+ CmsView registeredView = (CmsView) topShell.getData(CmsView.class.getName());
+ throw new IllegalArgumentException("Cms view " + registeredView + " already registered in this shell");
+ }
+ shell.setData(CmsView.class.getName(), view);
+ }
+
+ /** Sends an event via {@link CmsView#sendEvent(String, Map)}. */
+ public static void sendEventOnSelect(Control control, String topic, Map<String, Object> properties) {
+ SelectionListener listener = (Selected) (e) -> {
+ getCmsView(control.getParent()).sendEvent(topic, properties);
+ };
+ if (control instanceof Button) {
+ ((Button) control).addSelectionListener(listener);
+ } else
+ throw new UnsupportedOperationException("Control type " + control.getClass() + " is not supported.");
+ }
+
+ /**
+ * Convenience method to sends an event via
+ * {@link CmsView#sendEvent(String, Map)}.
+ */
+ public static void sendEventOnSelect(Control control, String topic, String key, Object value) {
+ Map<String, Object> properties = new HashMap<>();
+ properties.put(key, value);
+ sendEventOnSelect(control, topic, properties);
+ }
+
+ /*
+ * GRID LAYOUT
+ */
+ public static GridLayout noSpaceGridLayout() {
+ return noSpaceGridLayout(new GridLayout());
+ }
+
+ public static GridLayout noSpaceGridLayout(int columns) {
+ return noSpaceGridLayout(new GridLayout(columns, false));
+ }
+
+ /** @return the same layout, with spaces removed. */
+ public static GridLayout noSpaceGridLayout(GridLayout layout) {
+ layout.horizontalSpacing = 0;
+ layout.verticalSpacing = 0;
+ layout.marginWidth = 0;
+ layout.marginHeight = 0;
+ return layout;
+ }
+
+ public static GridData fillAll() {
+ return new GridData(SWT.FILL, SWT.FILL, true, true);
+ }
+
+ public static GridData fillWidth() {
+ return grabWidth(SWT.FILL, SWT.FILL);
+ }
+
+ public static GridData grabWidth(int horizontalAlignment, int verticalAlignment) {
+ return new GridData(horizontalAlignment, horizontalAlignment, true, false);
+ }
+
+ public static GridData fillHeight() {
+ return grabHeight(SWT.FILL, SWT.FILL);
+ }
+
+ public static GridData grabHeight(int horizontalAlignment, int verticalAlignment) {
+ return new GridData(horizontalAlignment, horizontalAlignment, false, true);
+ }
+
+ /*
+ * ROW LAYOUT
+ */
+ /** @return the same layout, with margins removed. */
+ public static RowLayout noMarginsRowLayout(RowLayout rowLayout) {
+ rowLayout.marginTop = 0;
+ rowLayout.marginBottom = 0;
+ rowLayout.marginLeft = 0;
+ rowLayout.marginRight = 0;
+ return rowLayout;
+ }
+
+ public static RowLayout noMarginsRowLayout(int type) {
+ return noMarginsRowLayout(new RowLayout(type));
+ }
+
+ public static RowData rowData16px() {
+ return new RowData(16, 16);
+ }
+
+ /*
+ * FORM LAYOUT
+ */
+ public static FormData coverAll() {
+ FormData fdLabel = new FormData();
+ fdLabel.top = new FormAttachment(0, 0);
+ fdLabel.left = new FormAttachment(0, 0);
+ fdLabel.right = new FormAttachment(100, 0);
+ fdLabel.bottom = new FormAttachment(100, 0);
+ return fdLabel;
+ }
+
+ /*
+ * STYLING
+ */
+
+ /** Style widget */
+ public static <T extends Widget> T style(T widget, String style) {
+ if (style == null)
+ return widget;// does nothing
+ EclipseUiSpecificUtils.setStyleData(widget, style);
+ if (widget instanceof Control) {
+ CmsView cmsView = getCmsView((Control) widget);
+ if (cmsView != null)
+ cmsView.applyStyles(widget);
+ }
+ return widget;
+ }
+
+ /** Style widget */
+ public static <T extends Widget> T style(T widget, CmsStyle style) {
+ return style(widget, style.style());
+ }
+
+ /** Enable markups on widget */
+ public static <T extends Widget> T markup(T widget) {
+ EclipseUiSpecificUtils.setMarkupData(widget);
+ return widget;
+ }
+
+ /** Disable markup validation. */
+ public static <T extends Widget> T disableMarkupValidation(T widget) {
+ EclipseUiSpecificUtils.setMarkupValidationDisabledData(widget);
+ return widget;
+ }
+
+ /**
+ * Apply markup and set text on {@link Label}, {@link Button}, {@link Text}.
+ *
+ * @param widget the widget to style and to use in order to display text
+ * @param txt the object to display via its <code>toString()</code> method.
+ * This argument should not be null, but if it is null and
+ * assertions are disabled "<null>" is displayed instead; if
+ * assertions are enabled the call will fail.
+ *
+ * @see markup
+ */
+ public static <T extends Widget> T text(T widget, Object txt) {
+ assert txt != null;
+ String str = txt != null ? txt.toString() : "<null>";
+ markup(widget);
+ if (widget instanceof Label)
+ ((Label) widget).setText(str);
+ else if (widget instanceof Button)
+ ((Button) widget).setText(str);
+ else if (widget instanceof Text)
+ ((Text) widget).setText(str);
+ else
+ throw new IllegalArgumentException("Unsupported widget type " + widget.getClass());
+ return widget;
+ }
+
+ /** A {@link Label} with markup activated. */
+ public static Label lbl(Composite parent, Object txt) {
+ return text(new Label(parent, SWT.NONE), txt);
+ }
+
+ /** A read-only {@link Text} whose content can be copy/pasted. */
+ public static Text txt(Composite parent, Object txt) {
+ return text(new Text(parent, SWT.NONE), txt);
+ }
+
+ /** Dispose all children of a Composite */
+ public static void clear(Composite composite) {
+ if (composite.isDisposed())
+ return;
+ for (Control child : composite.getChildren())
+ child.dispose();
+ }
+}
projects / lgpl / argeo-commons.git / blobdiff