Java Code Examples for java.awt.Graphics#clearRect()
The following examples show how to use
java.awt.Graphics#clearRect() .
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Example 1
| Source File: PolygonPanel.java From jenetics with Apache License 2.0 | 6 votes |
|
@Override
protected void paintComponent(final Graphics g) {
super.paintComponent(g);
if (_chromosome != null) {
_chromosome.draw((Graphics2D) g, width(), height());
} else {
g.setColor(Color.white);
g.clearRect(0, 0, width(), height());
}
}
Example 2
| Source File: WCanvasPeer.java From jdk8u_jdk with GNU General Public License v2.0 | 5 votes |
|
@Override
public void paint(Graphics g) {
Dimension d = ((Component)target).getSize();
if (g instanceof Graphics2D ||
g instanceof sun.awt.Graphics2Delegate) {
// background color is setup correctly, so just use clearRect
g.clearRect(0, 0, d.width, d.height);
} else {
// emulate clearRect
g.setColor(((Component)target).getBackground());
g.fillRect(0, 0, d.width, d.height);
g.setColor(((Component)target).getForeground());
}
super.paint(g);
}
Example 3
| Source File: XYZApp.java From jdk8u-dev-jdk with GNU General Public License v2.0 | 5 votes |
|
@Override
public void update(Graphics g) {
if (backBuffer == null) {
g.clearRect(0, 0, getSize().width, getSize().height);
}
paint(g);
}
Example 4
| Source File: WCanvasPeer.java From openjdk-jdk8u-backup with GNU General Public License v2.0 | 5 votes |
|
@Override
public void paint(Graphics g) {
Dimension d = ((Component)target).getSize();
if (g instanceof Graphics2D ||
g instanceof sun.awt.Graphics2Delegate) {
// background color is setup correctly, so just use clearRect
g.clearRect(0, 0, d.width, d.height);
} else {
// emulate clearRect
g.setColor(((Component)target).getBackground());
g.fillRect(0, 0, d.width, d.height);
g.setColor(((Component)target).getForeground());
}
super.paint(g);
}
Example 5
| Source File: VolatileSurfaceManager.java From jdk8u_jdk with GNU General Public License v2.0 | 5 votes |
|
/**
* Set contents of the current SurfaceData to default state (i.e. clear
* the background).
*/
public void initContents() {
// images with forced acceleration type may have a null sdCurrent
// because we do not create a backup surface for them
if (sdCurrent != null) {
Graphics g = vImg.createGraphics();
g.clearRect(0, 0, vImg.getWidth(), vImg.getHeight());
g.dispose();
}
}
Example 6
| Source File: VolatileSurfaceManager.java From openjdk-jdk8u with GNU General Public License v2.0 | 5 votes |
|
/**
* Set contents of the current SurfaceData to default state (i.e. clear
* the background).
*/
public void initContents() {
// images with forced acceleration type may have a null sdCurrent
// because we do not create a backup surface for them
if (sdCurrent != null) {
Graphics g = vImg.createGraphics();
g.clearRect(0, 0, vImg.getWidth(), vImg.getHeight());
g.dispose();
}
}
Example 7
| Source File: WCanvasPeer.java From jdk8u60 with GNU General Public License v2.0 | 5 votes |
|
@Override
public void paint(Graphics g) {
Dimension d = ((Component)target).getSize();
if (g instanceof Graphics2D ||
g instanceof sun.awt.Graphics2Delegate) {
// background color is setup correctly, so just use clearRect
g.clearRect(0, 0, d.width, d.height);
} else {
// emulate clearRect
g.setColor(((Component)target).getBackground());
g.fillRect(0, 0, d.width, d.height);
g.setColor(((Component)target).getForeground());
}
super.paint(g);
}
Example 8
| Source File: XYZApp.java From openjdk-8 with GNU General Public License v2.0 | 5 votes |
|
@Override
public void update(Graphics g) {
if (backBuffer == null) {
g.clearRect(0, 0, getSize().width, getSize().height);
}
paint(g);
}
Example 9
| Source File: VolatileSurfaceManager.java From openjdk-8 with GNU General Public License v2.0 | 5 votes |
|
/**
* Set contents of the current SurfaceData to default state (i.e. clear
* the background).
*/
public void initContents() {
// images with forced acceleration type may have a null sdCurrent
// because we do not create a backup surface for them
if (sdCurrent != null) {
Graphics g = vImg.createGraphics();
g.clearRect(0, 0, vImg.getWidth(), vImg.getHeight());
g.dispose();
}
}
Example 10
| Source File: XYZApp.java From jdk8u60 with GNU General Public License v2.0 | 5 votes |
|
@Override
public void update(Graphics g) {
if (backBuffer == null) {
g.clearRect(0, 0, getSize().width, getSize().height);
}
paint(g);
}
Example 11
| Source File: WCanvasPeer.java From jdk8u-jdk with GNU General Public License v2.0 | 5 votes |
|
@Override
public void paint(Graphics g) {
Dimension d = ((Component)target).getSize();
if (g instanceof Graphics2D ||
g instanceof sun.awt.Graphics2Delegate) {
// background color is setup correctly, so just use clearRect
g.clearRect(0, 0, d.width, d.height);
} else {
// emulate clearRect
g.setColor(((Component)target).getBackground());
g.fillRect(0, 0, d.width, d.height);
g.setColor(((Component)target).getForeground());
}
super.paint(g);
}
Example 12
| Source File: VolatileSurfaceManager.java From TencentKona-8 with GNU General Public License v2.0 | 5 votes |
|
/**
* Set contents of the current SurfaceData to default state (i.e. clear
* the background).
*/
public void initContents() {
// images with forced acceleration type may have a null sdCurrent
// because we do not create a backup surface for them
if (sdCurrent != null) {
Graphics g = vImg.createGraphics();
g.clearRect(0, 0, vImg.getWidth(), vImg.getHeight());
g.dispose();
}
}
Example 13
| Source File: WCanvasPeer.java From dragonwell8_jdk with GNU General Public License v2.0 | 5 votes |
|
@Override
public void paint(Graphics g) {
Dimension d = ((Component)target).getSize();
if (g instanceof Graphics2D ||
g instanceof sun.awt.Graphics2Delegate) {
// background color is setup correctly, so just use clearRect
g.clearRect(0, 0, d.width, d.height);
} else {
// emulate clearRect
g.setColor(((Component)target).getBackground());
g.fillRect(0, 0, d.width, d.height);
g.setColor(((Component)target).getForeground());
}
super.paint(g);
}
Example 14
| Source File: WCanvasPeer.java From jdk8u-jdk with GNU General Public License v2.0 | 5 votes |
|
@Override
public void paint(Graphics g) {
Dimension d = ((Component)target).getSize();
if (g instanceof Graphics2D ||
g instanceof sun.awt.Graphics2Delegate) {
// background color is setup correctly, so just use clearRect
g.clearRect(0, 0, d.width, d.height);
} else {
// emulate clearRect
g.setColor(((Component)target).getBackground());
g.fillRect(0, 0, d.width, d.height);
g.setColor(((Component)target).getForeground());
}
super.paint(g);
}
Example 15
| Source File: HistogramPanel.java From pdfxtk with Apache License 2.0 | 5 votes |
|
/** Paints the histogram component.
@param g graphics context */
protected void paintComponent(Graphics g) {
size = getSize(null);
g.clearRect(0, 0, size.width, size.height);
int[][] bins = histogram.getBins();
int numBands = bins.length;
int highValue = 0;
for (int band = 0; band < numBands; band++) {
for (int bin = 0; bin < bins[band].length; bin++) {
highValue = Math.max(highValue, bins[band][bin]);
}
}
for (int band = 0; band < numBands; band++) {
g.setColor(bandColor[band]);
for (int bin = 0; bin < bins[band].length; bin++) {
int xpos = ((bin*numBands)+band) * size.width / (maxBins*numBands);
int xpos2 = ((bin*numBands)+(band+1)) * size.width / (maxBins*numBands);
int ysize = size.height * bins[band][bin] / highValue;
g.fillRect(xpos, size.height-ysize, xpos2-xpos, ysize);
}
}
}
Example 16
| Source File: RepaintArea.java From openjdk-8 with GNU General Public License v2.0 | 4 votes |
|
/**
* Invokes paint and update on target Component with optimal
* rectangular clip region.
* If PAINT bounding rectangle is less than
* MAX_BENEFIT_RATIO times the benefit, then the vertical and horizontal unions are
* painted separately. Otherwise the entire bounding rectangle is painted.
*
* @param target Component to <code>paint</code> or <code>update</code>
* @since 1.4
*/
public void paint(Object target, boolean shouldClearRectBeforePaint) {
Component comp = (Component)target;
if (isEmpty()) {
return;
}
if (!comp.isVisible()) {
return;
}
RepaintArea ra = this.cloneAndReset();
if (!subtract(ra.paintRects[VERTICAL], ra.paintRects[HORIZONTAL])) {
subtract(ra.paintRects[HORIZONTAL], ra.paintRects[VERTICAL]);
}
if (ra.paintRects[HORIZONTAL] != null && ra.paintRects[VERTICAL] != null) {
Rectangle paintRect = ra.paintRects[HORIZONTAL].union(ra.paintRects[VERTICAL]);
int square = paintRect.width * paintRect.height;
int benefit = square - ra.paintRects[HORIZONTAL].width
* ra.paintRects[HORIZONTAL].height - ra.paintRects[VERTICAL].width
* ra.paintRects[VERTICAL].height;
// if benefit is comparable with bounding box
if (MAX_BENEFIT_RATIO * benefit < square) {
ra.paintRects[HORIZONTAL] = paintRect;
ra.paintRects[VERTICAL] = null;
}
}
for (int i = 0; i < paintRects.length; i++) {
if (ra.paintRects[i] != null
&& !ra.paintRects[i].isEmpty())
{
// Should use separate Graphics for each paint() call,
// since paint() can change Graphics state for next call.
Graphics g = comp.getGraphics();
if (g != null) {
try {
g.setClip(ra.paintRects[i]);
if (i == UPDATE) {
updateComponent(comp, g);
} else {
if (shouldClearRectBeforePaint) {
g.clearRect( ra.paintRects[i].x,
ra.paintRects[i].y,
ra.paintRects[i].width,
ra.paintRects[i].height);
}
paintComponent(comp, g);
}
} finally {
g.dispose();
}
}
}
}
}
Example 17
| Source File: RepaintArea.java From Bytecoder with Apache License 2.0 | 4 votes |
|
/**
* Invokes paint and update on target Component with optimal
* rectangular clip region.
* If PAINT bounding rectangle is less than
* MAX_BENEFIT_RATIO times the benefit, then the vertical and horizontal unions are
* painted separately. Otherwise the entire bounding rectangle is painted.
*
* @param target Component to {@code paint} or {@code update}
* @since 1.4
*/
public void paint(Object target, boolean shouldClearRectBeforePaint) {
Component comp = (Component)target;
if (isEmpty()) {
return;
}
if (!comp.isVisible()) {
return;
}
RepaintArea ra = this.cloneAndReset();
if (!subtract(ra.paintRects[VERTICAL], ra.paintRects[HORIZONTAL])) {
subtract(ra.paintRects[HORIZONTAL], ra.paintRects[VERTICAL]);
}
if (ra.paintRects[HORIZONTAL] != null && ra.paintRects[VERTICAL] != null) {
Rectangle paintRect = ra.paintRects[HORIZONTAL].union(ra.paintRects[VERTICAL]);
int square = paintRect.width * paintRect.height;
int benefit = square - ra.paintRects[HORIZONTAL].width
* ra.paintRects[HORIZONTAL].height - ra.paintRects[VERTICAL].width
* ra.paintRects[VERTICAL].height;
// if benefit is comparable with bounding box
if (MAX_BENEFIT_RATIO * benefit < square) {
ra.paintRects[HORIZONTAL] = paintRect;
ra.paintRects[VERTICAL] = null;
}
}
for (int i = 0; i < paintRects.length; i++) {
if (ra.paintRects[i] != null
&& !ra.paintRects[i].isEmpty())
{
// Should use separate Graphics for each paint() call,
// since paint() can change Graphics state for next call.
Graphics g = comp.getGraphics();
if (g != null) {
try {
g.setClip(ra.paintRects[i]);
if (i == UPDATE) {
updateComponent(comp, g);
} else {
if (shouldClearRectBeforePaint) {
g.clearRect( ra.paintRects[i].x,
ra.paintRects[i].y,
ra.paintRects[i].width,
ra.paintRects[i].height);
}
paintComponent(comp, g);
}
} finally {
g.dispose();
}
}
}
}
}
Example 18
| Source File: RepaintArea.java From jdk8u-jdk with GNU General Public License v2.0 | 4 votes |
|
/**
* Invokes paint and update on target Component with optimal
* rectangular clip region.
* If PAINT bounding rectangle is less than
* MAX_BENEFIT_RATIO times the benefit, then the vertical and horizontal unions are
* painted separately. Otherwise the entire bounding rectangle is painted.
*
* @param target Component to <code>paint</code> or <code>update</code>
* @since 1.4
*/
public void paint(Object target, boolean shouldClearRectBeforePaint) {
Component comp = (Component)target;
if (isEmpty()) {
return;
}
if (!comp.isVisible()) {
return;
}
RepaintArea ra = this.cloneAndReset();
if (!subtract(ra.paintRects[VERTICAL], ra.paintRects[HORIZONTAL])) {
subtract(ra.paintRects[HORIZONTAL], ra.paintRects[VERTICAL]);
}
if (ra.paintRects[HORIZONTAL] != null && ra.paintRects[VERTICAL] != null) {
Rectangle paintRect = ra.paintRects[HORIZONTAL].union(ra.paintRects[VERTICAL]);
int square = paintRect.width * paintRect.height;
int benefit = square - ra.paintRects[HORIZONTAL].width
* ra.paintRects[HORIZONTAL].height - ra.paintRects[VERTICAL].width
* ra.paintRects[VERTICAL].height;
// if benefit is comparable with bounding box
if (MAX_BENEFIT_RATIO * benefit < square) {
ra.paintRects[HORIZONTAL] = paintRect;
ra.paintRects[VERTICAL] = null;
}
}
for (int i = 0; i < paintRects.length; i++) {
if (ra.paintRects[i] != null
&& !ra.paintRects[i].isEmpty())
{
// Should use separate Graphics for each paint() call,
// since paint() can change Graphics state for next call.
Graphics g = comp.getGraphics();
if (g != null) {
try {
g.setClip(ra.paintRects[i]);
if (i == UPDATE) {
updateComponent(comp, g);
} else {
if (shouldClearRectBeforePaint) {
g.clearRect( ra.paintRects[i].x,
ra.paintRects[i].y,
ra.paintRects[i].width,
ra.paintRects[i].height);
}
paintComponent(comp, g);
}
} finally {
g.dispose();
}
}
}
}
}
Example 19
| Source File: RepaintArea.java From openjdk-jdk8u-backup with GNU General Public License v2.0 | 4 votes |
|
/**
* Invokes paint and update on target Component with optimal
* rectangular clip region.
* If PAINT bounding rectangle is less than
* MAX_BENEFIT_RATIO times the benefit, then the vertical and horizontal unions are
* painted separately. Otherwise the entire bounding rectangle is painted.
*
* @param target Component to <code>paint</code> or <code>update</code>
* @since 1.4
*/
public void paint(Object target, boolean shouldClearRectBeforePaint) {
Component comp = (Component)target;
if (isEmpty()) {
return;
}
if (!comp.isVisible()) {
return;
}
RepaintArea ra = this.cloneAndReset();
if (!subtract(ra.paintRects[VERTICAL], ra.paintRects[HORIZONTAL])) {
subtract(ra.paintRects[HORIZONTAL], ra.paintRects[VERTICAL]);
}
if (ra.paintRects[HORIZONTAL] != null && ra.paintRects[VERTICAL] != null) {
Rectangle paintRect = ra.paintRects[HORIZONTAL].union(ra.paintRects[VERTICAL]);
int square = paintRect.width * paintRect.height;
int benefit = square - ra.paintRects[HORIZONTAL].width
* ra.paintRects[HORIZONTAL].height - ra.paintRects[VERTICAL].width
* ra.paintRects[VERTICAL].height;
// if benefit is comparable with bounding box
if (MAX_BENEFIT_RATIO * benefit < square) {
ra.paintRects[HORIZONTAL] = paintRect;
ra.paintRects[VERTICAL] = null;
}
}
for (int i = 0; i < paintRects.length; i++) {
if (ra.paintRects[i] != null
&& !ra.paintRects[i].isEmpty())
{
// Should use separate Graphics for each paint() call,
// since paint() can change Graphics state for next call.
Graphics g = comp.getGraphics();
if (g != null) {
try {
g.setClip(ra.paintRects[i]);
if (i == UPDATE) {
updateComponent(comp, g);
} else {
if (shouldClearRectBeforePaint) {
g.clearRect( ra.paintRects[i].x,
ra.paintRects[i].y,
ra.paintRects[i].width,
ra.paintRects[i].height);
}
paintComponent(comp, g);
}
} finally {
g.dispose();
}
}
}
}
}
Example 20
| Source File: NativeView.java From noa-libre with GNU Lesser General Public License v2.1 | 3 votes |
|
/**
* overload paint routine to show provide against
* repaint errors if no office view is realy plugged
* into this canvas.
* If handle is present - we shouldn't paint anything further.
* May the remote window is already plugged. In such case we
* shouldn't paint it over.
*/
public void paint(Graphics aGraphic) {
if (maHandle == null) {
Dimension aSize = getSize();
aGraphic.clearRect(0, 0, aSize.width, aSize.height);
}
}
