Sync git svn branch with SVN repository r33269.

[simantics/platform.git] / bundles / org.simantics.utils.ui.workbench / src / org / simantics / utils / ui / workbench / dialogs / ColorDialog.java

diff --git a/bundles/org.simantics.utils.ui.workbench/src/org/simantics/utils/ui/workbench/dialogs/ColorDialog.java b/bundles/org.simantics.utils.ui.workbench/src/org/simantics/utils/ui/workbench/dialogs/ColorDialog.java
new file mode 100644 (file)
index 0000000..ab61e6d
--- /dev/null
+++ b/bundles/org.simantics.utils.ui.workbench/src/org/simantics/utils/ui/workbench/dialogs/ColorDialog.java
@@ -0,0 +1,137 @@
+package org.simantics.utils.ui.workbench.dialogs;\r
+\r
+import java.io.IOException;\r
+import java.util.Deque;\r
+import java.util.LinkedList;\r
+\r
+import org.eclipse.core.runtime.preferences.InstanceScope;\r
+import org.eclipse.jface.layout.GridLayoutFactory;\r
+import org.eclipse.jface.preference.IPersistentPreferenceStore;\r
+import org.eclipse.jface.preference.IPreferenceStore;\r
+import org.eclipse.swt.SWT;\r
+import org.eclipse.swt.graphics.Point;\r
+import org.eclipse.swt.widgets.Button;\r
+import org.eclipse.swt.widgets.Composite;\r
+import org.eclipse.swt.widgets.Control;\r
+import org.eclipse.swt.widgets.Display;\r
+import org.eclipse.swt.widgets.Group;\r
+import org.eclipse.swt.widgets.Shell;\r
+import org.eclipse.ui.IMemento;\r
+import org.eclipse.ui.preferences.ScopedPreferenceStore;\r
+import org.simantics.utils.ui.ExceptionUtils;\r
+import org.simantics.utils.ui.color.Color;\r
+import org.simantics.utils.ui.workbench.StringMemento;\r
+\r
+/**\r
+ * ColorDialog that keeps track used colors.\r
+ * \r
+ * @author Marko Luukkainen <marko.luukkainen@vtt.fi>\r
+ *\r
+ */\r
+public class ColorDialog extends org.simantics.utils.ui.color.ColorDialog{\r
+       \r
+       public ColorDialog(Shell parentShell) {\r
+               super(parentShell);\r
+       }\r
+\r
+    \r
+    protected Control createDialogArea(Composite parent) {\r
+       initRecent();\r
+       Composite composite = (Composite)super.createDialogArea(parent);\r
+               Group recentGroup = new Group(composite, SWT.NONE);\r
+               recentGroup.setText("Recent colors");\r
+               GridLayoutFactory.fillDefaults().numColumns(8).spacing(2, 2).margins(4, 4).applyTo(recentGroup);\r
+               int i = 0;\r
+               for (Color c : recentColors) {\r
+                       i++;\r
+                       createColorButton(recentGroup, c);\r
+               }\r
+               org.eclipse.swt.graphics.Color c = Display.getCurrent().getSystemColor(SWT.COLOR_WIDGET_BACKGROUND);\r
+               Color color = new Color(c.getRGB());\r
+               for ( ; i < MAX_RECENT_COLORS; i++) {\r
+                       Button button = createColorButton(recentGroup, color);\r
+                       button.setEnabled(false);\r
+               }\r
+               return composite;\r
+    }\r
+    \r
+    @Override\r
+    protected Point getInitialSize() {\r
+        return new Point(400, 450);\r
+    }\r
+    \r
+       private static final int MAX_RECENT_COLORS = 8;\r
+       \r
+       public static final String  RECENT_COLORS = "RECENT_COLORS";\r
+\r
+    private static final String TAG_COLORS                = "color";\r
+    private static final String R_ATTR_NAME               = "r";\r
+    private static final String G_ATTR_NAME               = "g";\r
+    private static final String B_ATTR_NAME               = "b";\r
+    \r
+    private static final String PLUGIN_ID = "org.simantics.utils.ui.workbench";\r
+    \r
+    protected Deque<Color> recentColors;\r
+    \r
+    private void initRecent() {\r
+        IPreferenceStore store = new ScopedPreferenceStore(InstanceScope.INSTANCE, PLUGIN_ID);\r
+        String recentString = store.getString(RECENT_COLORS);\r
+        recentColors = decodeColors(recentString);\r
+    }\r
+    \r
+    private void storeRecent() {\r
+       Color color = getColor();\r
+       recentColors.remove(color);\r
+       recentColors.addFirst(color);\r
+       while(recentColors.size() > MAX_RECENT_COLORS)\r
+               recentColors.removeLast();\r
+       \r
+       IPersistentPreferenceStore store = new ScopedPreferenceStore(InstanceScope.INSTANCE, PLUGIN_ID);\r
+       store.putValue(RECENT_COLORS, encodeColors(recentColors));\r
+       \r
+       if (store.needsSaving())\r
+               try { \r
+                       store.save();\r
+               } catch (IOException e) {\r
+                       ExceptionUtils.logError(e);\r
+               }\r
+    }\r
+    \r
+    @Override\r
+       protected void okPressed() {\r
+               storeRecent();\r
+               super.okPressed();\r
+       }\r
+    \r
+    public static Deque<Color> decodeColors(String recentColorsPref) {\r
+        Deque<Color> result = new LinkedList<Color>();\r
+        try {\r
+            StringMemento sm = new StringMemento(recentColorsPref);\r
+            for (IMemento m : sm.getChildren(TAG_COLORS)) {\r
+               try {\r
+                       int r = m.getInteger(R_ATTR_NAME);\r
+                       int g = m.getInteger(G_ATTR_NAME);\r
+                       int b = m.getInteger(B_ATTR_NAME);\r
+                       Color c = new Color(r, g, b);\r
+                       result.add(c);\r
+                } catch (Exception e) {\r
+                       \r
+                }\r
+                \r
+            }\r
+        } catch (IllegalArgumentException e) {\r
+        }\r
+        return result;\r
+    }\r
+    \r
+    public static String encodeColors(Deque<Color> recentColors) {\r
+        StringMemento sm = new StringMemento();\r
+        for (Color c : recentColors) {\r
+            IMemento m = sm.createChild(TAG_COLORS);\r
+            m.putInteger(R_ATTR_NAME, c.getR());\r
+            m.putInteger(G_ATTR_NAME, c.getG());\r
+            m.putInteger(B_ATTR_NAME, c.getB());\r
+        }\r
+        return sm.toString();\r
+    }\r
+}\r