Revision: 3820
http://vexi.svn.sourceforge.net/vexi/?rev=3820&view=rev
Author: clrg
Date: 2010-03-23 01:39:34 +0000 (Tue, 23 Mar 2010)
Log Message:
-----------
Feature: abort reflow/render -> js can affect live reflow
Modified Paths:
--------------
trunk/core/org.vexi.core/src/org/vexi/core/Box.jpp
trunk/core/org.vexi.core/src/org/vexi/core/Surface.java
Modified: trunk/core/org.vexi.core/src/org/vexi/core/Box.jpp
===================================================================
--- trunk/core/org.vexi.core/src/org/vexi/core/Box.jpp 2010-03-19 15:54:47 UTC
(rev 3819)
+++ trunk/core/org.vexi.core/src/org/vexi/core/Box.jpp 2010-03-23 01:39:34 UTC
(rev 3820)
@@ -431,7 +431,7 @@
//#repeat width/height WIDTH/HEIGHT
if (width != this.width) {
PUT_BOX_FIELD(SC_width,JSU.N(width),this.width = width,WIDTH_TRAP)
- setPlace();
+ setPlaceAndCatchExceptions();
}
//#end
dirtyInPlace(clean);
@@ -451,7 +451,7 @@
//#repeat width/height WIDTH/HEIGHT
if (width != this.width) {
PUT_BOX_FIELD(SC_width,JSU.N(width),this.width = width,WIDTH_TRAP)
- setPlace();
+ setPlaceAndCatchExceptions();
}
//#end
dirtyInPlace(clean);
@@ -460,34 +460,62 @@
// Reflow
////////////////////////////////////////////////////////////////////////////////////////
- private final void setConstrain() { set(CONSTRAIN); setConstrainInTree(); }
- private final void setConstrainInTree() {
+ private final void setConstrain() throws JSExn { set(CONSTRAIN);
setConstrainInTree(); }
+ private final void setParentConstrain() throws JSExn {
+ if (parent != null) {
+ parent.setConstrain();
+ }
+ }
+ private final void setConstrainAndCatchExceptions () {
+ try {
+ set(CONSTRAIN);
+ setConstrainInTree();
+ } catch(JSExn e) {
+ Log.warn(Box.class,"Caught exception due to Surface.abort during
constrain");
+ e.printStackTrace(Logger.WARN, Log.user, Box.class);
+ }
+ }
+ private final void setConstrainInTree() throws JSExn {
Box b=this;
// FIXME: box tree is getting into inconsistent states with
CONSTRAIN_DESCENDENT
- while (b.test(DISPLAY) && (b=b.parent)!=null) {// &&
!b.test(CONSTRAIN_DESCENDENT)) {
+ while (b.test(DISPLAY) && b.parent!=null) {// &&
!b.parent.test(CONSTRAIN_DESCENDENT)) {
+ b = b.parent;
b.set(CONSTRAIN_DESCENDENT);
}
+ Surface s = b.getSurface();
+ if (s!=null) {
+ s.abortReflow();
+ }
}
- private final void setParentConstrain() {
+
+ private final void setPlace() throws JSExn { set(PLACE); setPlaceInTree();
}
+ private final void setParentPlace() throws JSExn {
if (parent != null) {
- parent.setConstrain();
+ parent.setPlace();
}
}
-
- private final void setPlace() { set(PLACE); setPlaceInTree(); }
- private final void setPlaceInTree() {
+ private final void setPlaceAndCatchExceptions () {
+ try {
+ set(PLACE);
+ setPlaceInTree();
+ } catch(JSExn e) {
+ Log.warn(Box.class,"Caught exception due to Surface.abort during
place");
+ e.printStackTrace(Logger.WARN, Log.user, Box.class);
+ }
+ }
+ private final void setPlaceInTree() throws JSExn {
Box b=this;
- while (b.test(DISPLAY) && (b=b.parent)!=null &&
!b.test(PLACE_DESCENDENT)) {
+ while (b.test(DISPLAY) && b.parent!=null &&
!b.parent.test(PLACE_DESCENDENT)) {
+ b = b.parent;
b.set(PLACE_DESCENDENT);
}
- }
- private final void setParentPlace() {
- if (parent != null) {
- parent.setPlace();
+ Surface s = b.getSurface();
+ if (s!=null) {
+ s.abortReflow();
}
}
- private final void requestReflow() {
+ private final void requestReflow() throws JSExn {
if (test(CONSTRAIN) || test(CONSTRAIN_DESCENDENT)) {
setConstrainInTree();
}
@@ -530,11 +558,16 @@
}
/** should only be invoked on the root box */
- public boolean reflow(int w, int h) {
+ public boolean reflow(Surface fromSurface, int w, int h) {
if ((flags & REFLOW) == 0 && w==width && h==height) {
return false;
}
constrain();
+ if (fromSurface.renderAborted()) {
+ // if the current reflow/render has been aborted then
+ // defer place() until contraining has been completed
+ return false;
+ }
tryResize(w, h, true);
boolean mouseUpdateRequired = test(PLACE|PLACE_DESCENDENT);
place(test(PLACE_CLEAN));
@@ -620,9 +653,9 @@
if (newwidth != contentwidth) {
if (parent != null) {
PUT_BOX_FIELD(SC_contentwidth,JSU.N(newwidth),contentwidth=newwidth,CONTENTWIDTH_TRAP)
- setPlace();
+ setPlaceAndCatchExceptions();
parent.set(PLACE);
- parent.setConstrain();
+ parent.setConstrainAndCatchExceptions();
} else {
// constrain contentwidth to frame width
if (getSurface()!=null && !test(SHRINK)) {
@@ -630,7 +663,7 @@
}
if (newwidth != contentwidth) {
PUT_BOX_FIELD(SC_contentwidth,JSU.N(newwidth),contentwidth=newwidth,CONTENTWIDTH_TRAP)
- setPlace();
+ setPlaceAndCatchExceptions();
}
}
}
Modified: trunk/core/org.vexi.core/src/org/vexi/core/Surface.java
===================================================================
--- trunk/core/org.vexi.core/src/org/vexi/core/Surface.java 2010-03-19
15:54:47 UTC (rev 3819)
+++ trunk/core/org.vexi.core/src/org/vexi/core/Surface.java 2010-03-23
01:39:34 UTC (rev 3820)
@@ -62,9 +62,6 @@
/** all instances of Surface which need to be refreshed by the
Platform.Scheduler */
public static Vec allSurfaces = new Vec();
-
- /** when set to true, render() should abort as soon as possible and
restart the rendering process */
- public volatile boolean abort = false;
// these three variables are used to ensure that user resizes trump
programmatic resizes
public volatile int pendingWidth = 0;
@@ -667,6 +664,18 @@
// unused - private static Affine identity = Affine.identity();
+
+ /** when set to true, render() should abort as soon as possible and
restart the rendering process */
+ private volatile boolean abort = false;
+ private int abortcount;
+ public boolean renderAborted() { return abort; }
+ public void abortReflow() throws JSExn {
+ if (abortcount>=1000) {
+ throw new JSExn("Reflow appears to be getting aborted
indefinitely");
+ }
+ abort = true;
+ }
+
/** runs the pre-render() and render() pipelines in the root Box to
regenerate the backbuffer, then blits it to the screen */
public synchronized void render() {
scheduled = false;
@@ -675,8 +684,10 @@
return;
}
// make sure the root is properly sized
+ abortcount = 0;
do {
abort = false;
+ abortcount ++;
// pending size update means the user resized the window
if (pendingWidth != root.width || pendingHeight != root.height) {
// ensure scar is always shown
@@ -689,7 +700,7 @@
// reflow to new size as set by the frame
int cwidth = root.contentwidth;
int cheight = root.contentheight;
- mouseUpdateRequired = root.reflow(pendingWidth, pendingHeight) ||
mouseUpdateRequired;
+ mouseUpdateRequired = root.reflow(this, pendingWidth,
pendingHeight) || mouseUpdateRequired;
if (Box.testShrink(root) && (cwidth!=root.contentwidth ||
cheight!=root.contentheight)) {
setMinimumSize(root.contentwidth, root.contentheight);
}
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