X-Git-Url: http://git.megacz.com/?a=blobdiff_plain;f=src%2Forg%2Fxwt%2FSurface.java;h=089480e79ae34ec83797e7d4bb4346c15f4023d7;hb=8235361e8601ae7b36ab707058de3b52225d15a2;hp=1da3c3eb618c90a16ea6f50a8f0bfdd91ea5deec;hpb=119001be312b275cd9f3d2484ee62f358e1b71ec;p=org.ibex.core.git
diff --git a/src/org/xwt/Surface.java b/src/org/xwt/Surface.java
index 1da3c3e..089480e 100644
--- a/src/org/xwt/Surface.java
+++ b/src/org/xwt/Surface.java
@@ -1,4 +1,4 @@
-// Copyright 2002 Adam Megacz, see the COPYING file for licensing [GPL]
+// Copyright 2003 Adam Megacz, see the COPYING file for licensing [GPL]
package org.xwt;
import org.bouncycastle.util.encoders.Base64;
@@ -17,120 +17,68 @@ import java.util.*;
* MessageQueue-time (the size/position/state at the time that the
* now-executing message was enqueued). This distinction is important.
*/
-public abstract class Surface {
+// FIXME: put the scar box back in
+public abstract class Surface extends PixelBuffer {
+ public int getWidth() { return root == null ? 0 : root.width; }
+ public int getHeight() { return root == null ? 0 : root.height; }
+
// Static Data ////////////////////////////////////////////////////////////////////////////////
- /** true iff a user-created surface was created */
- static boolean refreshableSurfaceWasCreated = false;
-
- /** a reference to the most recently enqueued Move message; used to throttle the message rate */
+ /**< the most recently enqueued Move message; used to throttle the message rate */
private static Message lastMoveMessage = null;
/** all instances of Surface which need to be refreshed by the MessageQueue */
public static Vec allSurfaces = new Vec();
-
- /** true iff the alt button is pressed down, in real time */
- public static boolean alt = false;
- /** true iff the control button is pressed down, in real time */
- public static boolean control = false;
-
- /** true iff the shift button is pressed down, in real time */
- public static boolean shift = false;
-
- /** true iff button 1 is depressed, in MessageQueue-time */
- public static boolean button1 = false;
-
- /** true iff button 2 is depressed, in MessageQueue-time */
- public static boolean button2 = false;
-
- /** true iff button 3 is depressed, in MessageQueue-time */
- public static boolean button3 = false;
-
-
- // Public Members and State Variables /////////////////////////////////////////////////////////
-
- /** this is the box on this surface which the mouse was inside at the time that the currently-executing event was enqueued */
- public Box boxContainingMouse = null;
-
- /** false if the surface has never been rendered; used to determine if the surface should be repositioned to be centered on the screen */
- public boolean centerSurfaceOnRender = true;
-
- /** the x position of the mouse, relative to this Surface, in MessageQueue-time */
- public int mousex;
+ /** When set to true, render() should abort as soon as possible and restart the rendering process */
+ static volatile boolean abort = false;
- /** the y position of the mouse, relative to this Surface, in MessageQueue-time */
- public int mousey;
+ public static boolean alt = false; ///< true iff the alt button is pressed down, in real time
+ public static boolean control = false; ///< true iff the control button is pressed down, in real time
+ public static boolean shift = false; ///< true iff the shift button is pressed down, in real time
+ public static boolean button1 = false; ///< true iff button 1 is depressed, in MessageQueue-time
+ public static boolean button2 = false; ///< true iff button 2 is depressed, in MessageQueue-time
+ public static boolean button3 = false; ///< true iff button 3 is depressed, in MessageQueue-time
- /** True iff this surface is minimized, in real time */
- public boolean minimized = false;
+
- /** True iff this surface is maximized, in real time */
- public boolean maximized = false;
+ // Instance Data ///////////////////////////////////////////////////////////////////////
- /** The name of the cursor on this surface -- this value fluctuates during rendering, so it may not be accurate;
- * syncCursor() is called once the value is stable, to prevent the "flickering cursor" phenomenon
- */
+ public Box root; /**< The Box at the root of this surface */
public String cursor = "default";
- /** The width of the surface's drawable area, in real time */
- public int width = 0;
+ public int mousex; ///< the x position of the mouse, relative to this Surface, in MessageQueue-time
+ public int mousey; ///< the y position of the mouse, relative to this Surface, in MessageQueue-time
+ public boolean minimized = false; ///< True iff this surface is minimized, in real time
+ public boolean maximized = false; ///< True iff this surface is maximized, in real time
- /** The height of the surface's drawable area, in real time */
- public int height = 0;
-
- /** The Box at the root of this surface */
- public Box root;
-
- /** The number of SizeChange/PosChange traps triggered since the last successful render -- used to detect infinite loops */
- public int sizePosChangesSinceLastRender = 0;
-
- /** the x-position of the mouse the last time a Press message was enqueued */
- int last_press_x = Integer.MAX_VALUE;
+ /** Dirty regions on the backbuffer which need to be rebuilt using Box.render() */
+ private DirtyList dirtyRegions = new DirtyList();
- /** the y-position of the mouse the last time a Press message was enqueued */
- int last_press_y = Integer.MAX_VALUE;
+ // Used For Simulating Clicks and DoubleClicks /////////////////////////////////////////////////
+ int last_press_x = Integer.MAX_VALUE; ///< the x-position of the mouse the last time a Press message was enqueued
+ int last_press_y = Integer.MAX_VALUE; ///< the y-position of the mouse the last time a Press message was enqueued
+ static int lastClickButton = 0; ///< the last button to recieve a Click message; used for simulating DoubleClick's
+ static long lastClickTime = 0; ///< the last time a Click message was processed; used for simulating DoubleClick's
+
// Methods to be overridden by subclasses ///////////////////////////////////////////////////////
- /** when this method is invoked, the surface should push itself to the back of the stacking order */
- public abstract void toBack();
-
- /** when this method is invoked, the surface should pull itself to the front of the stacking order */
- public abstract void toFront();
-
- /** sets the actual cursor for this surface to the cursor referenced by cursor */
- public abstract void syncCursor();
-
- /** If b == true, make the window invisible; otherwise, make it non-invisible. */
- public abstract void setInvisible(boolean b);
-
- /** If b == true, maximize the surface; otherwise, un-maximize it. */
- protected abstract void _setMaximized(boolean b);
-
- /** If b == true, minimize the surface; otherwise, un-minimize it. */
- protected abstract void _setMinimized(boolean b);
-
- /** Sets the surface's width and height. */
- protected abstract void setSize(int width, int height);
-
- /** Sets the surface's x and y position. */
- public abstract void setLocation(int x, int y);
-
- /** Sets the surface's title bar text, if applicable */
- public abstract void setTitleBarText(String s);
-
- /** Sets the surface's title bar text, if applicable */
- public abstract void setIcon(Picture i);
-
- /** copies a region from the doublebuffer to this surface */
- public abstract void blit(DoubleBuffer source, int sx, int sy, int dx, int dy, int dx2, int dy2);
-
- /** Destroy the surface */
- public abstract void _dispose();
+ public abstract void toBack(); ///< when invoked, the surface should push itself to the back of the stacking order
+ public abstract void toFront(); ///< when invoked, the surface should pull itself to the front of the stacking order
+ public abstract void syncCursor(); ///< the actual cursor for this surface to the cursor referenced by cursor
+ public abstract void setInvisible(boolean b); ///< If b, make window invisible; otherwise, make it non-invisible.
+ protected abstract void _setMaximized(boolean b); ///< If b, maximize the surface; otherwise, un-maximize it.
+ protected abstract void _setMinimized(boolean b); ///< If b, minimize the surface; otherwise, un-minimize it.
+ protected abstract void setSize(int width, int height); ///< Sets the surface's width and height.
+ public abstract void setLocation(); ///< Set the surface's x/y position to that of the root box
+ public abstract void setTitleBarText(String s); ///< Sets the surface's title bar text, if applicable
+ public abstract void setIcon(Picture i); ///< Sets the surface's title bar text, if applicable
+ public abstract void _dispose(); ///< Destroy the surface
+ public void setLimits(int min_width, int min_height, int max_width, int max_height) { }
// Helper methods for subclasses ////////////////////////////////////////////////////////////
@@ -143,14 +91,13 @@ public abstract class Surface {
else if (button == 2) button2 = true;
else if (button == 3) button3 = true;
- if (button == 1) new SimpleMessage("Press1", Boolean.TRUE, root.whoIs(mousex, mousey));
- else if (button == 2) new SimpleMessage("Press2", Boolean.TRUE, root.whoIs(mousex, mousey));
+ if (button == 1) new SimpleMessage("Press1", Boolean.TRUE, Box.whoIs(root, mousex, mousey));
+ else if (button == 2) new SimpleMessage("Press2", Boolean.TRUE, Box.whoIs(root, mousex, mousey));
else if (button == 3) {
- final Box who = root.whoIs(mousex, mousey);
- MessageQueue.add(new Message() { public void perform() {
- Surface.this.boxContainingMouse = who;
+ final Box who = Box.whoIs(root, mousex, mousey);
+ Message.Q.add(new Message() { public void perform() {
Platform.clipboardReadEnabled = true;
- root.put("Press1", null, Boolean.TRUE);
+ root.put("Press3", Boolean.TRUE);
Platform.clipboardReadEnabled = false;
}});
}
@@ -161,9 +108,9 @@ public abstract class Surface {
else if (button == 2) button2 = false;
else if (button == 3) button3 = false;
- if (button == 1) new SimpleMessage("Release1", Boolean.TRUE, root.whoIs(mousex, mousey));
- else if (button == 2) new SimpleMessage("Release2", Boolean.TRUE, root.whoIs(mousex, mousey));
- else if (button == 3) new SimpleMessage("Release3", Boolean.TRUE, root.whoIs(mousex, mousey));
+ if (button == 1) new SimpleMessage("Release1", Boolean.TRUE, Box.whoIs(root, mousex, mousey));
+ else if (button == 2) new SimpleMessage("Release2", Boolean.TRUE, Box.whoIs(root, mousex, mousey));
+ else if (button == 3) new SimpleMessage("Release3", Boolean.TRUE, Box.whoIs(root, mousex, mousey));
if (Platform.needsAutoClick() && Math.abs(last_press_x - mousex) < 5 && Math.abs(last_press_y - mousey) < 5) Click(button);
last_press_x = Integer.MAX_VALUE;
@@ -171,32 +118,38 @@ public abstract class Surface {
}
protected final void Click(int button) {
- if (button == 1) new SimpleMessage("Click1", Boolean.TRUE, root.whoIs(mousex, mousey));
- else if (button == 2) new SimpleMessage("Click2", Boolean.TRUE, root.whoIs(mousex, mousey));
- else if (button == 3) new SimpleMessage("Click3", Boolean.TRUE, root.whoIs(mousex, mousey));
+ if (button == 1) new SimpleMessage("Click1", Boolean.TRUE, Box.whoIs(root, mousex, mousey));
+ else if (button == 2) new SimpleMessage("Click2", Boolean.TRUE, Box.whoIs(root, mousex, mousey));
+ else if (button == 3) new SimpleMessage("Click3", Boolean.TRUE, Box.whoIs(root, mousex, mousey));
+ if (Platform.needsAutoDoubleClick()) {
+ long now = System.currentTimeMillis();
+ if (lastClickButton == button && now - lastClickTime < 350) DoubleClick(button);
+ lastClickButton = button;
+ lastClickTime = now;
+ }
}
protected final void DoubleClick(int button) {
- if (button == 1) new SimpleMessage("DoubleClick1", Boolean.TRUE, root.whoIs(mousex, mousey));
- else if (button == 2) new SimpleMessage("DoubleClick2", Boolean.TRUE, root.whoIs(mousex, mousey));
- else if (button == 3) new SimpleMessage("DoubleClick3", Boolean.TRUE, root.whoIs(mousex, mousey));
+ if (button == 1) new SimpleMessage("DoubleClick1", Boolean.TRUE, Box.whoIs(root, mousex, mousey));
+ else if (button == 2) new SimpleMessage("DoubleClick2", Boolean.TRUE, Box.whoIs(root, mousex, mousey));
+ else if (button == 3) new SimpleMessage("DoubleClick3", Boolean.TRUE, Box.whoIs(root, mousex, mousey));
}
/** sends a KeyPressed message; subclasses should not add the C- or A- prefixes, nor should they capitalize alphabet characters */
protected final void KeyPressed(String key) {
if (key == null) return;
-
- if (key.equals("alt")) alt = true;
+
+ if (key.toLowerCase().endsWith("shift")) shift = true;
+ else if (shift) key = key.toUpperCase();
+
+ if (key.toLowerCase().equals("alt")) alt = true;
else if (alt) key = "A-" + key;
- if (key.endsWith("control")) control = true;
+ if (key.toLowerCase().endsWith("control")) control = true;
else if (control) key = "C-" + key;
- if (key.endsWith("shift")) shift = true;
- else if (shift) key = key.toUpperCase();
-
final String fkey = key;
- MessageQueue.add(new KMessage(key));
+ Message.Q.add(new KMessage(key));
}
// This is implemented as a private static class instead of an anonymous class to work around a GCJ bug
@@ -205,8 +158,14 @@ public abstract class Surface {
public KMessage(String k) { key = k; }
public void perform() {
if (key.equals("C-v") || key.equals("A-v")) Platform.clipboardReadEnabled = true;
- for(int i=0; i> 32);
- lastResizeTimeBottom = (int)(lastResizeTime & 0xffffffff);
- Refresh();
}
- protected final void PosChange(int x, int y) {
- root.set(Box.abs, 0, x);
- root.set(Box.abs, 1, y);
- new SimpleMessage("PosChange", Boolean.TRUE, null);
- }
-
- protected final void Close() { new SimpleMessage("Close", Boolean.TRUE, null); }
- protected final void Minimized(boolean b) { minimized = b; new SimpleMessage("Minimized", b ? Boolean.TRUE : Boolean.FALSE, null); }
- protected final void Maximized(boolean b) { maximized = b; new SimpleMessage("Maximized", b ? Boolean.TRUE : Boolean.FALSE, null); }
- protected final void Focused(boolean b) { new SimpleMessage("Focused", b ? Boolean.TRUE : Boolean.FALSE, null); }
- public static void Refresh() { MessageQueue.refresh(); }
-
- // the following value is split into two int's to work around GCJ bug java/6393
-
- /** used in conjunction with Platform.supressDirtyOnResize() */
- private int lastResizeTimeTop = 0;
- private int lastResizeTimeBottom = 0;
-
- /** This is how subclasses signal a 'shallow dirty', indicating that although the backbuffer is valid, the screen is not */
- public final void Dirty(int x, int y, int w, int h) {
- long lastResizeTime = (((long)lastResizeTimeTop) << 32) | (long)lastResizeTimeBottom;
- if (Platform.supressDirtyOnResize() && System.currentTimeMillis() - lastResizeTime < 100 && (w >= width - 1 || h >= height - 1)) return;
- screenDirtyRegions.dirty(x, y, w, h);
- blitDirtyScreenRegions();
+ protected final void PosChange(final int x, final int y) {
+ Message.Q.add(new Message() { public void perform() {
+ root.put("x", new Integer(x));
+ root.put("y", new Integer(y));
+ }});
}
+ protected final void Close() { new SimpleMessage("Close", Boolean.TRUE, root); }
+ protected final void Minimized(boolean b) { minimized = b; new SimpleMessage("Minimized", b ? Boolean.TRUE : Boolean.FALSE, root); }
+ protected final void Maximized(boolean b) { maximized = b; new SimpleMessage("Maximized", b ? Boolean.TRUE : Boolean.FALSE, root); }
+ protected final void Focused(boolean b) { new SimpleMessage("Focused", b ? Boolean.TRUE : Boolean.FALSE, root); }
+ public static void Refresh() { Message.Q.refresh(); }
- // Private Instance Data /////////////////////////////////////////////////////////////////////////////////////////////
-
- /** The automatic double buffer for the root box */
- DoubleBuffer backbuffer = null;
-
- /** Dirty regions on the backbuffer which need to be rebuilt using Box.render() */
- private DirtyList backbufferDirtyRegions = new DirtyList();
-
- /** Dirty regions on the screen which need to be rebuilt using Surface.blit() */
- private DirtyList screenDirtyRegions = new DirtyList();
-
- /** A list of all the Boxes on this Surface that should be notified of keyboard events */
- Vec keywatchers = new Vec();
-
- /** When set to true, render() should abort as soon as possible and restart the rendering process */
- volatile boolean abort = false;
-
- /** a solid red 10x10 double buffer */
- private DoubleBuffer showRenderBuf = null;
-
- /** a striped 100x100 double buffer */
- private DoubleBuffer showRenderBuf2 = null;
-
+ public final void setMaximized(boolean b) { if (b != maximized) _setMaximized(maximized = b); }
+ public final void setMinimized(boolean b) { if (b != minimized) _setMinimized(minimized = b); }
// Other Methods ///////////////////////////////////////////////////////////////////////////////
- /** If b == true, maximize the surface; otherwise, un-maximize it. */
- public final void setMaximized(boolean b) {
- if (b == maximized) return;
- _setMaximized(b);
- maximized = b;
- }
-
- /** If b == true, minimize the surface; otherwise, un-minimize it. */
- public final void setMinimized(boolean b) {
- if (b == minimized) return;
- _setMinimized(b);
- minimized = b;
- }
-
/** wrapper for setSize() which makes sure to dirty the place where the scar used to be */
- void _setSize(int width, int height) {
- dirty(hscar,
- root.size(1) - vscar - scarPicture.getHeight(),
- scarPicture.getWidth(), scarPicture.getHeight());
- setSize(width, height);
- this.width = width;
- this.height = height;
+ void setSize() {
+ root.width = Math.max(root.width, 10);
+ root.height = Math.max(root.height, 10);
+ setSize(root.width, root.height);
}
/** Indicates that the Surface is no longer needed */
- public final void dispose() {
- if (root == null) return;
+ public final void dispose(boolean quitIfAllSurfacesGone) {
if (Log.on) Log.log(this, "disposing " + this);
allSurfaces.removeElement(this);
_dispose();
-
- // quit when all windows are closed
if (allSurfaces.size() == 0) {
- if (Log.on) {
- if (refreshableSurfaceWasCreated) Log.log(this, "exiting because last remaining surface was disposed");
- else Log.log(this, "exiting because no surface was ever created");
- }
- Platform.exit();
+ if (Log.on) Log.log(this, "exiting because last surface was destroyed");
+ System.exit(0);
}
}
- /** Indicates that the backbuffer region x,y,w,h is no longer correct and must be regenerated */
public void dirty(int x, int y, int w, int h) {
- backbufferDirtyRegions.dirty(x, y, w, h);
+ dirtyRegions.dirty(x, y, w, h);
Refresh();
}
public Surface(Box root) {
+
this.root = root;
- if (root.surface != null && root.surface.root == root) root.surface.dispose();
- root.remove();
- root.setSurface(this);
+ if (root.surface != null && root.surface.root == root) root.surface.dispose(false);
+ else root.remove();
+ root.surface = this;
// make sure the root is properly sized
- while (root.needs_prerender || abort) {
- abort = false;
- root.prerender();
- }
-
- // this is a bit dangerous since we're passing ourselves to another method before subclasses' ctors have run...
- backbuffer = Platform.createDoubleBuffer(Platform.getScreenWidth(), Platform.getScreenHeight(), this);
+ do { abort = false; root.reflow(); } while(abort);
- root.mark_for_prerender();
root.dirty();
Refresh();
}
@@ -388,191 +287,111 @@ public abstract class Surface {
/** runs the prerender() and render() pipelines in the root Box to regenerate the backbuffer, then blits it to the screen */
public synchronized void render() {
- // if the window size changed as a result of a user action, we have to update the root box's size
- if (root.size(0) != width || root.size(1) != height) {
-
- // since the scar will be moving, dirty the place it used to be
- dirty(hscar,
- root.size(1) - vscar - scarPicture.getHeight(),
- scarPicture.getWidth(), scarPicture.getHeight());
-
- // sort of ugly; we can't use set() here because it will cause an infinite mutual recursion
- root._size_0 = (short)width;
- root._size_1 = (short)height;
-
- root.mark_for_prerender();
- root.put("SizeChange", null, Boolean.TRUE);
- }
-
- while (root.needs_prerender || abort) {
+ // make sure the root is properly sized
+ do {
abort = false;
- root.prerender();
-
+ root.reflow();
// update mouseinside and trigger Enter/Leave as a result of box size/position changes
String oldcursor = cursor;
cursor = "default";
root.Move(mousex, mousey, mousex, mousey);
if (!cursor.equals(oldcursor)) syncCursor();
- }
+ } while(abort);
- if (centerSurfaceOnRender) {
- centerSurfaceOnRender = false;
- int x = (Platform.getScreenWidth() - width) / 2;
- int y = (Platform.getScreenHeight() - height) / 2;
- setLocation(x, y);
- root.set(Box.abs, 0, x);
- root.set(Box.abs, 1, y);
- }
-
- sizePosChangesSinceLastRender = 0;
- int[][] dirt = backbufferDirtyRegions.flush();
+ Box.sizePosChangesSinceLastRender = 0;
+ int[][] dirt = dirtyRegions.flush();
for(int i = 0; dirt != null && i < dirt.length; i++) {
if (dirt[i] == null) continue;
- int x = dirt[i][0];
- int y = dirt[i][1];
- int w = dirt[i][2];
- int h = dirt[i][3];
+ int x = dirt[i][0], y = dirt[i][1], w = dirt[i][2], h = dirt[i][3];
if (x < 0) x = 0;
if (y < 0) y = 0;
- if (x+w > width) w = width - x;
- if (y+h > height) h = height - y;
+ if (x+w > root.width) w = root.width - x;
+ if (y+h > root.height) h = root.height - y;
if (w <= 0 || h <= 0) continue;
- root.render(x, y, w, h, backbuffer);
+ root.render(0, 0, x, y, w, h, this);
- // if any area under the scar was repainted, rescar that area
- if (x < hscar + scarPicture.getWidth() &&
- y + h > height - scarPicture.getHeight() - vscar) {
- int _x1 = Math.max(x, hscar);
- int _x2 = Math.min(x + w, hscar + scarPicture.getWidth());
- int _y1 = Math.max(y, height - scarPicture.getHeight() - vscar);
- int _y2 = Math.min(y + h, height - vscar);
-
- backbuffer.drawPicture(scarPicture, _x1, _y1, _x2, _y2,
- _x1 - (hscar),
- _y1 - (height - scarPicture.getHeight() - vscar),
- _x2 - (hscar),
- _y2 - (height - scarPicture.getHeight() - vscar)
- );
- }
-
if (abort) {
// x,y,w,h is only partially reconstructed, so we must be careful not to re-blit it
- blitDirtyScreenRegions(x, y, w, h);
- screenDirtyRegions.dirty(x, y, w, h);
+ dirtyRegions.dirty(x, y, w, h);
// put back all the dirty regions we haven't yet processed (including the current one)
for(int j=i; j 0 && a == -1)
- blit(backbuffer, 0, 0, 0, 0, width, height);
-
- for(int i = 0; dirt != null && i < dirt.length; i++) {
- if (dirt[i] == null) continue;
- int x = dirt[i][0];
- int y = dirt[i][1];
- int w = dirt[i][2];
- int h = dirt[i][3];
- if (x < 0) x = 0;
- if (y < 0) y = 0;
- if (x+w > root.size(0)) w = root.size(0) - x;
- if (y+h > root.size(1)) h = root.size(1) - y;
- if (w <= 0 || h <= 0) continue;
-
- // if any part of this region falls within the "bad region", just skip it
- boolean hhit = (x >= a && x <= a + c) || (x+w >= a && x+w <= a + c);
- boolean vhit = (y >= b && y <= b + d) || (y+h >= b && y+h <= b + d);
- if (hhit && vhit) {
- screenDirtyRegions.dirty(x, y, w, h);
- continue;
- }
-
- blit(backbuffer, x, y, x, y, w + x, h + y);
-
- if (Main.showRenders) {
- if (showRenderBuf == null) {
- showRenderBuf = Platform.createDoubleBuffer(10, 10, this);
- showRenderBuf.fillRect(0, 0, 10, 10, 0x00FF0000);
- showRenderBuf2 = Platform.createDoubleBuffer(100, 100, this);
- for(int y1 = 0; y1<100; y1++)
- for(int x1 = 0; x1<100; x1++)
- if ((x1 + y1) % 5 == 0)
- showRenderBuf2.fillRect(x1, y1, x1 + 1, y1 + 1, 0x00FF0000);
- }
- for(int x1 = x; x1 root.width) w = root.width - x;
+ if (y+h > root.height) h = root.height - y;
+ if (w <= 0 || h <= 0) continue;
+ blit(backbuffer, x, y, x, y, w + x, h + y);
+ }
+ }
+
+ /** This is how subclasses signal a 'shallow dirty', indicating that although the backbuffer is valid, the screen is not */
+ public final void Dirty(int x, int y, int w, int h) {
+ screenDirtyRegions.dirty(x, y, w, h);
+ Refresh();
+ }
- /** The scar's vertical offset */
- int vscar = 0;
+ /** copies a region from the doublebuffer to this surface */
+ public abstract void blit(PixelBuffer source, int sx, int sy, int dx, int dy, int dx2, int dy2);
- /** the scar image drawn on the bottom right hand corner */
- static Picture scarPicture = null;
+ }
}