From 8a970de9e301a8594e5109bf0b69242ac591b3df Mon Sep 17 00:00:00 2001
From: Tiziano Munaro <munaro@fortiss.org>
Date: Mon, 2 Dec 2019 11:30:13 +0100
Subject: [PATCH] [UI] Create utility class for handling graphics in
JavaFX-based views
Issue-Ref: 3874
Issue-Url: https://af3-developer.fortiss.org/issues/3874
Signed-off-by: Tiziano Munaro <munaro@fortiss.org>
---
.../tooling/common/ui/javafx/util/.ratings | 1 +
.../common/ui/javafx/util/GraphicUtils.java | 67 +++++++++++++++++++
2 files changed, 68 insertions(+)
create mode 100644 org.fortiss.tooling.common.ui/src/org/fortiss/tooling/common/ui/javafx/util/GraphicUtils.java
diff --git a/org.fortiss.tooling.common.ui/src/org/fortiss/tooling/common/ui/javafx/util/.ratings b/org.fortiss.tooling.common.ui/src/org/fortiss/tooling/common/ui/javafx/util/.ratings
index cd9b77b00..f200d0155 100644
--- a/org.fortiss.tooling.common.ui/src/org/fortiss/tooling/common/ui/javafx/util/.ratings
+++ b/org.fortiss.tooling.common.ui/src/org/fortiss/tooling/common/ui/javafx/util/.ratings
@@ -1 +1,2 @@
+GraphicUtils.java 4d471a310a52bda1c090f956dcdbe90775b12cb8 YELLOW
SceneGraphUtils.java f54304c2eb604934de9afdf9d2a8ca88a762398a GREEN
diff --git a/org.fortiss.tooling.common.ui/src/org/fortiss/tooling/common/ui/javafx/util/GraphicUtils.java b/org.fortiss.tooling.common.ui/src/org/fortiss/tooling/common/ui/javafx/util/GraphicUtils.java
new file mode 100644
index 000000000..4d471a310
--- /dev/null
+++ b/org.fortiss.tooling.common.ui/src/org/fortiss/tooling/common/ui/javafx/util/GraphicUtils.java
@@ -0,0 +1,67 @@
+/*-------------------------------------------------------------------------+
+| Copyright 2019 fortiss GmbH |
+| |
+| Licensed under the Apache License, Version 2.0 (the "License"); |
+| you may not use this file except in compliance with the License. |
+| You may obtain a copy of the License at |
+| |
+| http://www.apache.org/licenses/LICENSE-2.0 |
+| |
+| Unless required by applicable law or agreed to in writing, software |
+| distributed under the License is distributed on an "AS IS" BASIS, |
+| WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
+| See the License for the specific language governing permissions and |
+| limitations under the License. |
++--------------------------------------------------------------------------*/
+package org.fortiss.tooling.common.ui.javafx.util;
+
+import java.io.InputStream;
+import java.net.URL;
+import java.util.HashMap;
+
+import javafx.scene.image.Image;
+import javafx.scene.paint.Color;
+
+/**
+ * Utility methods for handling graphics in JavaFX-based views.
+ *
+ * @author munaro
+ */
+public class GraphicUtils {
+
+ /** The image cache of loaded images. */
+ private static final HashMap<String, Image> imageCache = new HashMap<>();
+
+ /** Returns the plugin-local URI string for the given resource. */
+ public static String getURIString(String pluginId, String localPath) {
+ return "platform:/plugin/" + pluginId + localPath;
+ }
+
+ /** Returns the Java FX Image load from the local path. */
+ public static Image getFXImage(String pluginId, String localPath) {
+ String uri = getURIString(pluginId, localPath);
+ if(uri == null) {
+ return null;
+ }
+ Image cacheImage = imageCache.get(uri);
+ if(cacheImage == null) {
+ InputStream in = null;
+ try {
+ in = new URL(uri).openStream();
+ } catch(Exception e) {
+ e.printStackTrace();
+ }
+ if(in != null) {
+ cacheImage = new Image(in);
+ }
+ imageCache.put(uri, cacheImage);
+ }
+ return cacheImage;
+ }
+
+ /** Converts the given SWT color to Java FX color. */
+ public static Color convertColor(org.eclipse.swt.graphics.Color swtColor) {
+ return Color.rgb(swtColor.getRed(), swtColor.getGreen(), swtColor.getBlue(),
+ swtColor.getAlpha() / 255.0);
+ }
+}
--
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