X-Git-Url: http://source.jalview.org/gitweb/?a=blobdiff_plain;f=src%2Fjalview%2Fappletgui%2FFontChooser.java;h=5df659bea612c99b1f0dec7ad8486ace17bf3631;hb=8e058bb9c973cf194bd0746da5ec44caed224293;hp=9a3fb6bdda05a367889001f1d7166928d1707cc1;hpb=2de8acfae59aced665e4c37ad0f7dcc2ed68818e;p=jalview.git

diff --git a/src/jalview/appletgui/FontChooser.java b/src/jalview/appletgui/FontChooser.java
index 9a3fb6b..5df659b 100755
--- a/src/jalview/appletgui/FontChooser.java
+++ b/src/jalview/appletgui/FontChooser.java
@@ -1,20 +1,19 @@
 /*
- * Jalview - A Sequence Alignment Editor and Viewer (Development Version 2.4.1)
- * Copyright (C) 2009 AM Waterhouse, J Procter, G Barton, M Clamp, S Searle
+ * Jalview - A Sequence Alignment Editor and Viewer (Version 2.8)
+ * Copyright (C) 2012 J Procter, AM Waterhouse, LM Lui, J Engelhardt, G Barton, M Clamp, S Searle
  * 
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License
- * as published by the Free Software Foundation; either version 2
- * of the License, or (at your option) any later version.
+ * This file is part of Jalview.
  * 
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
+ * Jalview is free software: you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License 
+ * as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version.
+ *  
+ * Jalview is distributed in the hope that it will be useful, but 
+ * WITHOUT ANY WARRANTY; without even the implied warranty 
+ * of MERCHANTABILITY or FITNESS FOR A PARTICULAR 
+ * PURPOSE.  See the GNU General Public License for more details.
  * 
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA
+ * You should have received a copy of the GNU General Public License along with Jalview.  If not, see <http://www.gnu.org/licenses/>.
  */
 package jalview.appletgui;
 
@@ -154,20 +153,58 @@ public class FontChooser extends Panel implements ActionListener,
     frame.setVisible(false);
   }
 
+  private Font lastSelected = null;
+
+  private int lastSelStyle = 0;
+
+  private int lastSelSize = 0;
+
+  /**
+   * DOCUMENT ME!
+   */
   void changeFont()
   {
+    if (lastSelected == null)
+    {
+      // initialise with original font
+      lastSelected = oldFont;
+      lastSelSize = oldFont.getSize();
+      lastSelStyle = oldFont.getStyle();
+    }
+
     Font newFont = new Font(fontName.getSelectedItem().toString(),
             fontStyle.getSelectedIndex(), Integer.parseInt(fontSize
                     .getSelectedItem().toString()));
-    if (ap != null)
+    FontMetrics fm = getGraphics().getFontMetrics(newFont);
+    double mw = fm.getStringBounds("M", getGraphics()).getWidth(), iw = fm
+            .getStringBounds("I", getGraphics()).getWidth();
+    if (mw < 1 || iw < 1)
     {
-      ap.av.setFont(newFont);
-      ap.fontChanged();
+      // TODO: JAL-1100
+      fontName.select(lastSelected.getName());
+      fontStyle.select(lastSelStyle);
+      fontSize.select("" + lastSelSize);
+      JVDialog d = new JVDialog(this.frame, "Invalid Font", true, 350, 200);
+      Panel mp = new Panel();
+      d.cancel.setVisible(false);
+      mp.setLayout(new FlowLayout());
+      mp.add(new Label(
+              "Font doesn't have letters defined\nso cannot be used\nwith alignment data."));
+      d.setMainPanel(mp);
+      d.setVisible(true);
+      return;
     }
-    else if (tp != null)
+    if (tp != null)
     {
       tp.setTreeFont(newFont);
     }
+    else if (ap != null)
+    {
+      ap.av.setFont(newFont);
+      ap.fontChanged();
+    }
+    // remember last selected
+    lastSelected = newFont;
   }
 
   protected void fontName_actionPerformed()