1 files changed, 82 insertions, 0 deletions
diff --git a/org.mihalis.opal/src/main/java/org/mihalis/opal/obutton/ButtonRenderer.java b/org.mihalis.opal/src/main/java/org/mihalis/opal/obutton/ButtonRenderer.java
new file mode 100644
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+++ b/org.mihalis.opal/src/main/java/org/mihalis/opal/obutton/ButtonRenderer.java
@@ -0,0 +1,82 @@
+/*******************************************************************************
+ * Copyright (c) 2012 Laurent CARON
+ * All rights reserved. This program and the accompanying materials
+ * are made available under the terms of the Eclipse Public License v1.0
+ * which accompanies this distribution, and is available at
+ * http://www.eclipse.org/legal/epl-v10.html
+ *
+ * Contributors:
+ *     Laurent CARON (laurent.caron at gmail dot com) - initial API and implementation
+ *******************************************************************************/
+package org.mihalis.opal.obutton;
+
+import org.eclipse.swt.graphics.GC;
+import org.eclipse.swt.graphics.Point;
+
+/**
+ * This interface contains methods used to render a button.
+ */
+public interface ButtonRenderer {
+
+	/**
+	 * Dispose the elements when the button is disposed.
+	 */
+	void dispose();
+
+	/**
+	 * Draw the button when the mouse is hover.
+	 *
+	 * @param gc Graphical context
+	 * @param button button displayed
+	 */
+	void drawButtonWhenMouseHover(GC gc, OButton button);
+
+	/**
+	 * Draw the button when the button is disabled.
+	 *
+	 * @param gc Graphical context
+	 * @param button button displayed
+	 */
+	void drawButtonWhenDisabled(GC gc, OButton button);
+
+	/**
+	 * Draw the button when the button (toggle button) is selected.
+	 *
+	 * @param gc Graphical context
+	 * @param button button displayed
+	 */
+	void drawButtonWhenSelected(GC gc, OButton button);
+
+	/**
+	 * Draw button.
+	 *
+	 * @param gc the gc
+	 * @param button the button
+	 */
+	void drawButton(GC gc, OButton button);
+
+	/**
+	 * Draw the button when the button is clicked.
+	 *
+	 * @param gc Graphical context
+	 * @param parent the parent
+	 */
+	void drawButtonWhenClicked(GC gc, OButton parent);
+
+	/**
+	 * Compute the size of the button.
+	 *
+	 * @param button button associated to this renderer
+	 * @param wHint the width hint (can be <code>SWT.DEFAULT</code>)
+	 * @param hHint the height hint (can be <code>SWT.DEFAULT</code>)
+	 * @param changed <code>true</code> if the control's contents have changed,
+	 *            and <code>false</code> otherwise
+	 * @return the size of the button
+	 */
+	Point computeSize(OButton button, int wHint, int hHint, boolean changed);
+
+	/**
+	 * Create disabled image.
+	 */
+	void createDisabledImage();
+}