Imported Classpath 0.18.

[pf3gnuchains/gcc-fork.git] / libjava / classpath / gnu / java / awt / peer / gtk / GtkImage.java

diff --git a/libjava/classpath/gnu/java/awt/peer/gtk/GtkImage.java b/libjava/classpath/gnu/java/awt/peer/gtk/GtkImage.java
index abb4137..82a3463 100644 (file)
--- a/libjava/classpath/gnu/java/awt/peer/gtk/GtkImage.java
+++ b/libjava/classpath/gnu/java/awt/peer/gtk/GtkImage.java
@@ -51,7 +51,10 @@ import java.io.File;
 import java.io.IOException;
 import java.util.Hashtable;
 import java.util.Vector;
-import gnu.classpath.RawData;
+import java.io.ByteArrayOutputStream;
+import java.io.BufferedInputStream;
+import java.net.URL;
+import gnu.classpath.Pointer;
 
 /**
  * GtkImage - wraps a GdkPixbuf or GdkPixmap.
@@ -87,7 +90,7 @@ public class GtkImage extends Image
   /**
    * Pointer to the GdkPixbuf
    */
-  RawData pixmap;
+  Pointer pixmap;
 
   /**
    * Observer queue.
@@ -129,11 +132,16 @@ public class GtkImage extends Image
   private native void setPixels(int[] pixels);
 
   /**
-   * Loads an image using gdk-pixbuf.
+   * Loads an image using gdk-pixbuf from a file.
    */
   private native boolean loadPixbuf(String name);
 
   /**
+   * Loads an image using gdk-pixbuf from data.
+   */
+  private native boolean loadImageFromData(byte[] data);
+
+  /**
    * Allocates a Gtk Pixbuf or pixmap
    */
   private native void createPixmap();
@@ -187,6 +195,21 @@ public class GtkImage extends Image
   }
 
   /**
+   * Constructs a blank GtkImage.  This is called when
+   * GtkToolkit.createImage (String) is called with an empty string
+   * argument ("").  A blank image is loaded immediately upon
+   * construction and has width -1 and height -1.
+   */
+  public GtkImage ()
+  {
+    isLoaded = true;
+    observers = null;
+    offScreen = false;
+    props = new Hashtable();
+    errorLoading = false;
+  }
+
+  /**
    * Constructs a GtkImage by loading a given file.
    *
    * @throws IllegalArgumentException if the image could not be loaded.
@@ -211,6 +234,58 @@ public class GtkImage extends Image
   }
 
   /**
+   * Constructs a GtkImage from a byte array of an image file.
+   *
+   * @throws IllegalArgumentException if the image could not be
+   * loaded.
+   */
+  public GtkImage (byte[] data)
+  {
+    if (loadImageFromData (data) != true)
+      throw new IllegalArgumentException ("Couldn't load image.");
+
+    isLoaded = true;
+    observers = null;
+    offScreen = false;
+    props = new Hashtable();
+    errorLoading = false;
+  }
+
+  /**
+   * Constructs a GtkImage from a URL. May result in an error image.
+   */
+  public GtkImage (URL url)
+  {
+    isLoaded = false;
+    observers = new Vector();
+    errorLoading = false;
+    if( url == null)
+      return;
+    ByteArrayOutputStream baos = new ByteArrayOutputStream (5000);
+    try
+      {
+        BufferedInputStream bis = new BufferedInputStream (url.openStream());
+
+        byte[] buf = new byte[5000];
+        int n = 0;
+
+        while ((n = bis.read(buf)) != -1)
+         baos.write(buf, 0, n); 
+        bis.close();
+      }
+    catch(IOException e)
+      {
+       throw new IllegalArgumentException ("Couldn't load image.");
+      }
+    if (loadImageFromData (baos.toByteArray()) != true)
+      throw new IllegalArgumentException ("Couldn't load image.");
+
+    isLoaded = true;
+    observers = null;
+    props = new Hashtable();
+  }
+
+  /**
    * Constructs an empty GtkImage.
    */
   public GtkImage (int width, int height)
@@ -241,6 +316,25 @@ public class GtkImage extends Image
   }
 
   /**
+   * Package private constructor to create a GtkImage from a given
+   * PixBuf pointer.
+   */
+  GtkImage (Pointer pixbuf)
+  {
+    pixmap = pixbuf;
+    createFromPixbuf();
+    isLoaded = true;
+    observers = null;
+    offScreen = false;
+    props = new Hashtable();
+  }
+
+  /**
+   * Native helper function for constructor that takes a pixbuf Pointer.
+   */
+  private native void createFromPixbuf();
+
+  /**
    * Callback from the image consumer.
    */
   public void setImage(int width, int height,