Minimal desktop utilities

[lgpl/argeo-commons.git] / rcp / org.argeo.cms.desktop / src / org / argeo / cms / desktop / DesktopLayer.java

diff --git a/rcp/org.argeo.cms.desktop/src/org/argeo/cms/desktop/DesktopLayer.java b/rcp/org.argeo.cms.desktop/src/org/argeo/cms/desktop/DesktopLayer.java
new file mode 100644 (file)
index 0000000..0565e73
--- /dev/null
+++ b/rcp/org.argeo.cms.desktop/src/org/argeo/cms/desktop/DesktopLayer.java
@@ -0,0 +1,96 @@
+package org.argeo.cms.desktop;
+
+import java.io.IOException;
+import java.nio.file.DirectoryStream;
+import java.nio.file.Files;
+import java.nio.file.Path;
+import java.nio.file.Paths;
+
+import org.apache.commons.io.FilenameUtils;
+import org.eclipse.swt.SWT;
+import org.eclipse.swt.events.SelectionAdapter;
+import org.eclipse.swt.events.SelectionEvent;
+import org.eclipse.swt.graphics.Image;
+import org.eclipse.swt.graphics.ImageData;
+import org.eclipse.swt.layout.GridData;
+import org.eclipse.swt.layout.GridLayout;
+import org.eclipse.swt.program.Program;
+import org.eclipse.swt.widgets.Button;
+import org.eclipse.swt.widgets.Composite;
+import org.eclipse.swt.widgets.Control;
+import org.eclipse.swt.widgets.Display;
+import org.eclipse.swt.widgets.Label;
+
+public class DesktopLayer {
+       // TODO make it configurable
+       private Path desktopDir = Paths.get(System.getProperty("user.home"), "tmp");
+
+       public void init(Composite parentShell) {
+//             Decorations shell = new Decorations(parentShell, SWT.CLOSE);
+//             shell.setLayoutData(new GridData(GridData.FILL_BOTH));
+               createUi(parentShell, desktopDir);
+               // shell.open();
+       }
+
+       public Control createUi(Composite parent, Path context) {
+               // parent.setLayout(new FillLayout());
+               try {
+                       DirectoryStream<Path> ds = Files.newDirectoryStream(context);
+                       ds.forEach((path) -> createIcon(parent, path));
+               } catch (IOException e) {
+                       // TODO Auto-generated catch block
+                       e.printStackTrace();
+               }
+               return parent;
+
+       }
+
+       protected void createIcon(Composite parent, Path path) {
+               String ext = FilenameUtils.getExtension(path.getFileName().toString());
+               Program program = Program.findProgram(ext);
+               if (program == null) {
+                       createDefaultIcon(parent, path);
+                       return;
+               }
+
+               Display display = parent.getDisplay();
+               ImageData iconData = program.getImageData();
+
+               Image iconImage;
+               if (iconData == null) {
+                       iconImage = display.getSystemImage(SWT.ICON_INFORMATION);
+                       iconData = iconImage.getImageData();
+               } else {
+                       iconImage = new Image(display, iconData);
+               }
+
+               Composite icon = new Composite(parent, SWT.NONE);
+               icon.setLayoutData(new GridData(48, 72));
+               icon.setLayout(new GridLayout());
+               // Button
+               Button iconB = new Button(icon, SWT.FLAT);
+               iconB.setImage(iconImage);
+               // iconB.setLayoutData(new GridData(iconData.width, iconData.height));
+               iconB.setLayoutData(new GridData(SWT.CENTER, SWT.CENTER, false, false));
+               iconB.addSelectionListener(new SelectionAdapter() {
+
+                       @Override
+                       public void widgetSelected(SelectionEvent e) {
+                               program.execute(path.toString());
+                       }
+
+               });
+               // Label
+               Label iconL = new Label(icon, SWT.WRAP);
+               iconL.setText(path.getFileName().toString());
+               iconL.setLayoutData(new GridData(SWT.CENTER, SWT.CENTER, false, false));
+       }
+
+       protected void createDefaultIcon(Composite parent, Path path) {
+               Composite icon = new Composite(parent, SWT.NONE);
+               icon.setLayout(new GridLayout());
+               Label iconL = new Label(icon, SWT.NONE);
+               iconL.setText(path.getFileName().toString());
+               iconL.setLayoutData(new GridData(SWT.CENTER, SWT.CENTER, true, true));
+       }
+}