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dragonwell8_jdk
提交 c251e2a0 编写于 作者: D dcherepanov
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6471693: Moving the vertical scroll bar of List in FileDialog leads Flickering in solaris 

Summary: unite paint() calls in one call
Reviewed-by: son
上级 68f43cb9
隐藏空白更改
内联 并排
Showing with 100 addition and 126 deletion
src/solaris/classes/sun/awt/X11/XListPeer.java
浏览文件 @ c251e2a0
/*
* Copyright 2003-2007 Sun Microsystems, Inc. All Rights Reserved.
* Copyright 2003-2008 Sun Microsystems, Inc. All Rights Reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
......@@ -55,14 +55,15 @@ class XListPeer extends XComponentPeer implements ListPeer, XScrollbarClient {
public final static int DEFAULT_VISIBLE_ROWS = 4; // From java.awt.List,
public final static int HORIZ_SCROLL_AMT = 10;
final static int
PAINT_VSCROLL = 2,
PAINT_HSCROLL = 4,
PAINT_ITEMS = 8,
PAINT_FOCUS = 16,
PAINT_BACKGROUND = 32,
PAINT_HIDEFOCUS = 64,
PAINT_ALL = PAINT_VSCROLL | PAINT_HSCROLL | PAINT_ITEMS | PAINT_FOCUS | PAINT_BACKGROUND;
private final static int PAINT_VSCROLL = 2;
private final static int PAINT_HSCROLL = 4;
private final static int PAINT_ITEMS = 8;
private final static int PAINT_FOCUS = 16;
private final static int PAINT_BACKGROUND = 32;
private final static int PAINT_HIDEFOCUS = 64;
private final static int PAINT_ALL =
PAINT_VSCROLL | PAINT_HSCROLL | PAINT_ITEMS | PAINT_FOCUS | PAINT_BACKGROUND;
private final static int COPY_AREA = 128;
XVerticalScrollbar vsb;
XHorizontalScrollbar hsb;
......@@ -363,35 +364,6 @@ class XListPeer extends XComponentPeer implements ListPeer, XScrollbarClient {
}
}
Area getItemsArea(int firstItem, int lastItem) {
firstItem = Math.max(getFirstVisibleItem(), firstItem);
lastItem = Math.min(lastItem, getLastVisibleItem());
if (lastItem < getFirstVisibleItem()) {
return new Area();
}
if (firstItem <= lastItem) {
int startY = getItemY(firstItem);
int endY = getItemY(lastItem) + getItemHeight();
// Account for focus rectangle, instead should be called twice - before change
// of focusIndex and after
startY -= 2;
endY += 2;
// x is 0 since we need to account for focus rectangle,
// the same with width
return new Area(new Rectangle(0, startY, getItemWidth() + 3, endY-startY+1));
} else {
return new Area();
}
}
Rectangle getItemRect(int item) {
return new Rectangle(MARGIN, getItemY(item), getItemWidth(), getItemHeight());
}
Area getItemArea(int item) {
return new Area(getItemRect(item));
}
public void repaintScrollbarRequest(XScrollbar scrollbar) {
Graphics g = getGraphics();
if (scrollbar == hsb) {
......@@ -411,14 +383,36 @@ class XListPeer extends XComponentPeer implements ListPeer, XScrollbarClient {
repaint(getFirstVisibleItem(), getLastVisibleItem(), PAINT_ALL);
}
public void repaint(int options) {
private void repaint(int options) {
repaint(getFirstVisibleItem(), getLastVisibleItem(), options);
}
public void repaint(int firstItem, int lastItem, int options) {
private void repaint(int firstItem, int lastItem, int options) {
repaint(firstItem, lastItem, options, null, null);
}
/**
* In most cases the entire area of the component doesn't have
* to be repainted. The method repaints the particular areas of
* the component. The areas to repaint is specified by the option
* parameter. The possible values of the option parameter are:
* PAINT_VSCROLL, PAINT_HSCROLL, PAINT_ITEMS, PAINT_FOCUS,
* PAINT_HIDEFOCUS, PAINT_BACKGROUND, PAINT_ALL, COPY_AREA.
*
* Note that the COPY_AREA value initiates copy of a source area
* of the component by a distance by means of the copyArea method
* of the Graphics class.
*
* @param firstItem the position of the first item of the range to repaint
* @param lastItem the position of the last item of the range to repaint
* @param options specifies the particular area of the component to repaint
* @param source the area of the component to copy
* @param distance the distance to copy the source area
*/
private void repaint(int firstItem, int lastItem, int options, Rectangle source, Point distance) {
Graphics g = getGraphics();
try {
painter.paint(g, firstItem, lastItem, options);
painter.paint(g, firstItem, lastItem, options, source, distance);
} finally {
g.dispose();
}
......@@ -1449,35 +1443,29 @@ class XListPeer extends XComponentPeer implements ListPeer, XScrollbarClient {
}
vsb.setValue(vsb.getValue() + y);
Rectangle source = null;
Point distance = null;
int firstItem = 0, lastItem = 0;
int options = PAINT_HIDEFOCUS | PAINT_ITEMS | PAINT_VSCROLL | PAINT_FOCUS;
if (y > 0) {
// Fixed 6308295: XAWTduplicate list item is displayed
// Window resizing leads to the buffer flushing
// That's why the repainting with the PAINT_HIDEFOCUS option is the repainting with PAINT_ALL option
// So we should do only the repainting instead of the copy area
if (y < itemsInWin && painter.isBuffer()) {
if (log.isLoggable(Level.FINEST)) {
log.finest("Copying " + "" + MARGIN + "," + ( MARGIN + pixelsToScroll)
+ "," + (width - SCROLLBAR_AREA) + "," + (h * (itemsInWin - y)-1) +
"," + 0 + "," + (-pixelsToScroll));
}
// Unpaint focus before copying
repaint(PAINT_HIDEFOCUS);
painter.copyArea(MARGIN, MARGIN + pixelsToScroll, width - SCROLLBAR_AREA, h * (itemsInWin - y - 1)-1, 0, -pixelsToScroll);
if (y < itemsInWin) {
source = new Rectangle(MARGIN, MARGIN + pixelsToScroll, width - SCROLLBAR_AREA, h * (itemsInWin - y - 1)-1);
distance = new Point(0, -pixelsToScroll);
options |= COPY_AREA;
}
repaint(vsb.getValue() + (itemsInWin - y)-1, (vsb.getValue() + itemsInWin) - 1, PAINT_ITEMS | PAINT_VSCROLL | PAINT_FOCUS);
} else if (y < 0 && painter.isBuffer()) {
firstItem = vsb.getValue() + itemsInWin - y - 1;
lastItem = vsb.getValue() + itemsInWin - 1;
} else if (y < 0) {
if (y + itemsInWindow() > 0) {
if (log.isLoggable(Level.FINEST)) {
log.finest("Copying " + MARGIN + "," + MARGIN +"," +
(width - SCROLLBAR_AREA) + "," +
(h * (itemsInWin + y)) + "," + "0" +"," +(-pixelsToScroll));
}
repaint(PAINT_HIDEFOCUS);
painter.copyArea(MARGIN, MARGIN, width - SCROLLBAR_AREA, h * (itemsInWin + y), 0, -pixelsToScroll);
source = new Rectangle(MARGIN, MARGIN, width - SCROLLBAR_AREA, h * (itemsInWin + y));
distance = new Point(0, -pixelsToScroll);
options |= COPY_AREA;
}
int e = Math.min(getLastVisibleItem(), vsb.getValue() + -y);
repaint(vsb.getValue(), e, PAINT_ITEMS | PAINT_VSCROLL | PAINT_FOCUS);
firstItem = vsb.getValue();
lastItem = Math.min(getLastVisibleItem(), vsb.getValue() + -y);
}
repaint(firstItem, lastItem, options, source, distance);
}
/**
......@@ -1491,12 +1479,17 @@ class XListPeer extends XComponentPeer implements ListPeer, XScrollbarClient {
int h = height - (SCROLLBAR_AREA + (2 * MARGIN));
hsb.setValue(hsb.getValue() + x);
if (x < 0 && painter.isBuffer()) {
painter.copyArea(MARGIN + SPACE, MARGIN, w + x, h, -x, 0);
} else if (x > 0 && painter.isBuffer()) {
painter.copyArea(MARGIN + SPACE + x, MARGIN, w - x, h, -x, 0);
Rectangle source = null;
Point distance = null;
if (x < 0) {
source = new Rectangle(MARGIN + SPACE, MARGIN, w + x, h);
distance = new Point(-x, 0);
} else if (x > 0) {
source = new Rectangle(MARGIN + SPACE + x, MARGIN, w - x, h);
distance = new Point(-x, 0);
}
repaint(vsb.getValue(), lastItemDisplayed(), PAINT_ITEMS | PAINT_HSCROLL);
int options = COPY_AREA | PAINT_ITEMS | PAINT_HSCROLL;
repaint(vsb.getValue(), lastItemDisplayed(), options, source, distance);
}
/**
......@@ -1677,7 +1670,6 @@ class XListPeer extends XComponentPeer implements ListPeer, XScrollbarClient {
* Since we can't guarantee the sequence, use awtLock.
*/
class ListPainter {
// TODO: use VolatileImage
VolatileImage buffer;
Color[] colors;
......@@ -1746,6 +1738,11 @@ class XListPeer extends XComponentPeer implements ListPeer, XScrollbarClient {
}
private void paint(Graphics listG, int firstItem, int lastItem, int options) {
paint(listG, firstItem, lastItem, options, null, null);
}
private void paint(Graphics listG, int firstItem, int lastItem, int options,
Rectangle source, Point distance) {
if (log.isLoggable(Level.FINER)) log.finer("Repaint from " + firstItem + " to " + lastItem + " options " + options);
if (firstItem > lastItem) {
int t = lastItem;
......@@ -1773,17 +1770,34 @@ class XListPeer extends XComponentPeer implements ListPeer, XScrollbarClient {
invalidate();
options = PAINT_ALL;
continue;
case VolatileImage.IMAGE_RESTORED:
options = PAINT_ALL;
}
Graphics g = localBuffer.createGraphics();
// Note that the order of the following painting operations
// should not be modified
try {
g.setFont(getFont());
// hiding the focus rectangle must be done prior to copying
// area and so this is the first action to be performed
if ((options & (PAINT_HIDEFOCUS)) != 0) {
paintFocus(g, PAINT_HIDEFOCUS);
}
/*
* The shift of the component contents occurs while someone
* scrolls the component, the only purpose of the shift is to
* increase the painting performance. The shift should be done
* prior to painting any area (except hiding focus) and actually
* it should never be done jointly with erase background.
*/
if ((options & COPY_AREA) != 0) {
g.copyArea(source.x, source.y, source.width, source.height,
distance.x, distance.y);
}
if ((options & PAINT_BACKGROUND) != 0) {
g.setColor(SystemColor.window);
g.fillRect(0, 0, width, height);
g.setColor(getListBackground());
g.fillRect(0, 0, listWidth, listHeight);
draw3DRect(g, getSystemColors(), 0, 0, listWidth - 1, listHeight - 1, false);
paintBackground(g);
// Since we made full erase update items
firstItem = getFirstVisibleItem();
lastItem = getLastVisibleItem();
......@@ -1799,8 +1813,8 @@ class XListPeer extends XComponentPeer implements ListPeer, XScrollbarClient {
g.setClip(getHScrollBarRec());
paintHorScrollbar(g, true);
}
if ((options & (PAINT_FOCUS|PAINT_HIDEFOCUS)) != 0) {
paintFocus(g, options);
if ((options & (PAINT_FOCUS)) != 0) {
paintFocus(g, PAINT_FOCUS);
}
} finally {
g.dispose();
......@@ -1809,6 +1823,14 @@ class XListPeer extends XComponentPeer implements ListPeer, XScrollbarClient {
listG.drawImage(localBuffer, 0, 0, null);
}
private void paintBackground(Graphics g) {
g.setColor(SystemColor.window);
g.fillRect(0, 0, width, height);
g.setColor(getListBackground());
g.fillRect(0, 0, listWidth, listHeight);
draw3DRect(g, getSystemColors(), 0, 0, listWidth - 1, listHeight - 1, false);
}
private void paintItems(Graphics g, int firstItem, int lastItem, int options) {
if (log.isLoggable(Level.FINER)) log.finer("Painting items from " + firstItem + " to " + lastItem + ", focused " + focusIndex + ", first " + getFirstVisibleItem() + ", last " + getLastVisibleItem());
......@@ -1932,53 +1954,5 @@ class XListPeer extends XComponentPeer implements ListPeer, XScrollbarClient {
}
g.setClip(clip);
}
public void copyArea(int x, int y, int width, int height, int dx, int dy) {
if (log.isLoggable(Level.FINER)) log.finer("Copying area " + x + ", " + y + " " + width +
"x" + height + ", (" + dx + "," + dy + ")");
VolatileImage localBuffer = null;
do {
XToolkit.awtLock();
try {
if (createBuffer()) {
// Newly created buffer should be painted over at full
repaint(PAINT_ALL);
return;
}
localBuffer = buffer;
} finally {
XToolkit.awtUnlock();
}
switch (localBuffer.validate(getGraphicsConfiguration())) {
case VolatileImage.IMAGE_INCOMPATIBLE:
invalidate();
case VolatileImage.IMAGE_RESTORED:
// Since we've lost the content we can't just scroll - we should paint again
repaint(PAINT_ALL);
return;
}
Graphics g = localBuffer.createGraphics();
try {
g.copyArea(x, y, width, height, dx, dy);
} finally {
g.dispose();
}
} while (localBuffer.contentsLost());
Graphics listG = getGraphics();
listG.setClip(x, y, width, height);
listG.drawImage(localBuffer, 0, 0, null);
listG.dispose();
}
public boolean isBuffer() {
boolean isBuffer;
XToolkit.awtLock();
try {
isBuffer = (buffer != null);
} finally {
XToolkit.awtUnlock();
}
return isBuffer;
}
}
}
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