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authorScott Gilbertson <scottg@mantatest.com>2003-08-25 19:02:29 +0000
committerScott Gilbertson <sgilbertson@gcc.gnu.org>2003-08-25 19:02:29 +0000
commit81f7282f978588f883d8363e8cd5e69d090bc331 (patch)
treecf8eb4ec21e611ee7dbea198fd5f8dce39ee903d /libjava/gnu/awt/xlib/XOffScreenImage.java
parent1281fe11033eebaaa8a4fbc70770eca204c9c504 (diff)
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Makefile.am: added gnu/awt/xlib/XOffScreenImage.java.
* Makefile.am: added gnu/awt/xlib/XOffScreenImage.java. * Makefile.in: re-generated. * gnu/awt/j2d/IntegerGraphicsState.java (ScreenCoupledImage): new interface. (drawImage): detect ScreenCoupledImage instances. * gnu/awt/xlib/XCanvasPeer.java (createImage) implemented. * gnu/awt/xlib/XEventLoop.java (createEvent): re-formatted, and rearranged to avoid null pointer. * gnu/awt/xlib/XGraphics.java (drawImage): added XOffScreenImage handling. * gnu/awt/xlib/XOffScreenImage.java: new file. * gnu/gcj/xlib/Drawable.java (getDepth): new native method. * gnu/gcj/xlib/GC.java (copyArea): new native method. * gnu/gcj/xlib/XAnyEvent.java (TYPE_KEY_PRESS): new constant. (TYPE_KEY_RELEASE): new constant. (TYPE_MOTION_NOTIFY): new constant. (TYPE_ENTER_NOTIFY): new constant. (TYPE_LEAVE_NOTIFY): new constant. (TYPE_FOCUS_IN): new constant. (TYPE_FOCUS_OUT): new constant. (TYPE_KEYMAP_NOTIFY): new constant. (TYPE_GRAPHICS_EXPOSE): new constant. (TYPE_NO_EXPOSE): new constant. (TYPE_VISIBILITY_NOTIFY): new constant. (TYPE_CREATE_NOTIFY): new constant. (TYPE_DESTROY_NOTIFY): new constant. (TYPE_MAP_REQUEST): new constant. (TYPE_CONFIGURE_REQUEST): new constant. (TYPE_GRAVITY_NOTIFY): new constant. (TYPE_RESIZE_REQUEST): new constant. (TYPE_CIRCULATE_NOTIFY): new constant. (TYPE_CIRCULATE_REQUEST): new constant. (TYPE_PROPERTY_NOTIFY): new constant. (TYPE_SELECTION_CLEAR): new constant. (TYPE_SELECTION_REQUEST): new constant. (TYPE_SELECTION_NOTIFY): new constant. (TYPE_COLORMAP_NOTIFY): new constant. (TYPE_MAPPING_NOTIFY): new constant. * gnu/gcj/xlib/natDrawable.cc (getDepth): new method. * gnu/gcj/xlib/natGC.cc (copyArea): new method * java/awt/Component.java (createImage): changed to use peer method. From-SVN: r70776
Diffstat (limited to 'libjava/gnu/awt/xlib/XOffScreenImage.java')
-rw-r--r--libjava/gnu/awt/xlib/XOffScreenImage.java175
1 files changed, 175 insertions, 0 deletions
diff --git a/libjava/gnu/awt/xlib/XOffScreenImage.java b/libjava/gnu/awt/xlib/XOffScreenImage.java
new file mode 100644
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+++ b/libjava/gnu/awt/xlib/XOffScreenImage.java
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+/* Copyright (C) 2000, 2003 Free Software Foundation
+
+ This file is part of libgcj.
+
+This software is copyrighted work licensed under the terms of the
+Libgcj License. Please consult the file "LIBGCJ_LICENSE" for
+details. */
+
+package gnu.awt.xlib;
+
+import java.awt.Image;
+import java.awt.Graphics;
+import java.awt.Graphics2D;
+import java.awt.GraphicsConfiguration;
+import java.awt.image.ColorModel;
+import java.awt.image.ImageObserver;
+import java.awt.image.ImageProducer;
+import java.util.Hashtable;
+import gnu.awt.j2d.DirectRasterGraphics;
+import gnu.awt.j2d.Graphics2DImpl;
+import gnu.awt.j2d.IntegerGraphicsState;
+import gnu.gcj.xlib.Drawable;
+import gnu.gcj.xlib.Pixmap;
+import gnu.gcj.xlib.Screen;
+import gnu.gcj.xlib.Visual;
+
+/** Image class for xlib off-screen buffers.
+ * The image is stored in a server-side pixmap for best performance.
+ * This class supports getGraphics, so you can draw on the pixmap, and is
+ * specially handled when doing drawImage, so that the image copy is done
+ * entirely in the X server.
+ * This class does not support rasterization, for which you'd need an XImage.
+ *
+ * @author scott gilbertson <scottg@mantatest.com> <sgilbertson@cogeco.ca>
+ */
+public class XOffScreenImage extends Image
+ implements IntegerGraphicsState.ScreenCoupledImage
+{
+ private Pixmap pixmap;
+ private XGraphicsConfiguration config;
+ private int width;
+ private int height;
+
+ /** Create a new XOffScreenImage
+ * @param config Graphics configuration, to compare against on-screen
+ * components and to create the appropriate Graphics
+ * @param drawable The drawable with which the image is compatible
+ * @param width The width of the image
+ * @param height The height of the image
+ */
+ XOffScreenImage (XGraphicsConfiguration config, Drawable drawable, int width, int height)
+ {
+ this.config = config;
+ this.width = width;
+ this.height = height;
+ pixmap = new Pixmap (drawable, width, height, drawable.getDepth ());
+ }
+
+ /** Get the pixmap which contains this image
+ * @return The pixmap
+ */
+ public Pixmap getPixmap ()
+ {
+ return pixmap;
+ }
+
+ /** Flushes (that is, destroys) any resources used for this image. This
+ * includes the actual image data.
+ */
+ public void flush ()
+ {
+ // FIXME: should dispose pixmap
+ pixmap = null;
+ }
+
+ /** Returns a graphics context object for drawing an off-screen object.
+ * This method is only valid for off-screen objects.
+ *
+ * @return a graphics context object for an off-screen object
+ * @see Graphics#createImage(int, int)
+ */
+ public Graphics getGraphics ()
+ {
+ DirectRasterGraphics gfxDevice = new XGraphics (pixmap, config);
+ IntegerGraphicsState igState = new IntegerGraphicsState (gfxDevice);
+ Graphics2DImpl gfx2d = new Graphics2DImpl (config);
+ gfx2d.setState (igState);
+ return gfx2d;
+ }
+
+ /** Returns the height of the image, or -1 if it is unknown. If the
+ * image height is unknown, the observer object will be notified when
+ * the value is known.
+ *
+ * @param observer the image observer for this object
+ * @return the height in pixels
+ * @see #getWidth(ImageObserver)
+ */
+ public int getHeight (ImageObserver observer)
+ {
+ return height;
+ }
+
+ /** Returns the height of the image, or -1 if it is unknown. If the
+ * image height is unknown, the observer object will be notified when
+ * the value is known.
+ *
+ * @return the height in pixels
+ * @see #getWidth()
+ */
+ public int getHeight ()
+ {
+ return height;
+ }
+
+ /** Returns the image producer object for this object. The producer is the
+ * object which generates pixels for this image.
+ *
+ * @return the image producer for this object
+ */
+ public ImageProducer getSource ()
+ {
+ throw new UnsupportedOperationException ("getSource not supported");
+ }
+
+ /** Returns the width of the image, or -1 if it is unknown. If the
+ * image width is unknown, the observer object will be notified when
+ * the value is known.
+ *
+ * @param observer the image observer for this object
+ * @return the width in pixels
+ * @see #getHeight(ImageObserver)
+ */
+ public int getWidth (ImageObserver observer)
+ {
+ return width;
+ }
+
+ /** Returns the width of the image, or -1 if it is unknown. If the
+ * image width is unknown, the observer object will be notified when
+ * the value is known.
+ *
+ * @return the width in pixels
+ * @see #getHeight()
+ */
+ public int getWidth ()
+ {
+ return width;
+ }
+
+ /** This method requests a named property for an object. The value of the
+ * property is returned. The value <code>UndefinedProperty</code> is
+ * returned if there is no property with the specified name. The value
+ * <code>null</code> is returned if the properties for the object are
+ * not yet known. In this case, the specified image observer is notified
+ * when the properties are known.
+ *
+ * @param name the requested property name
+ * @param observer the image observer for this object
+ * @return the named property, if available
+ * @see #UndefinedProperty
+ */
+ public Object getProperty (String name, ImageObserver observer)
+ {
+ return null;
+ }
+
+ /** Get the GraphicsConfiguration to which this image is coupled
+ * @return the GraphicsConfiguration
+ */
+ public GraphicsConfiguration getGraphicsConfiguration ()
+ {
+ return config;
+ }
+}
generated by cgit v1.1 at 2025-03-25 08:40:26 +0000