Java Code Examples for sun.java2d.pipe.Region#getHiX()
The following examples show how to use
sun.java2d.pipe.Region#getHiX() .
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Example 1
| Source File: GDIWindowSurfaceData.java From openjdk-jdk9 with GNU General Public License v2.0 | 6 votes |
|
public boolean copyArea(SunGraphics2D sg2d,
int x, int y, int w, int h, int dx, int dy)
{
CompositeType comptype = sg2d.imageComp;
if (sg2d.clipState != SunGraphics2D.CLIP_SHAPE &&
(CompositeType.SrcOverNoEa.equals(comptype) ||
CompositeType.SrcNoEa.equals(comptype)))
{
int dstx1 = x + dx;
int dsty1 = y + dy;
int dstx2 = dstx1 + w;
int dsty2 = dsty1 + h;
Region clip = sg2d.getCompClip();
if (dstx1 < clip.getLoX()) dstx1 = clip.getLoX();
if (dsty1 < clip.getLoY()) dsty1 = clip.getLoY();
if (dstx2 > clip.getHiX()) dstx2 = clip.getHiX();
if (dsty2 > clip.getHiY()) dsty2 = clip.getHiY();
if (dstx1 < dstx2 && dsty1 < dsty2) {
gdiPipe.devCopyArea(this, dstx1 - dx, dsty1 - dy,
dx, dy,
dstx2 - dstx1, dsty2 - dsty1);
}
return true;
}
return false;
}
Example 2
| Source File: DrawGlyphListAA.java From openjdk-jdk9 with GNU General Public License v2.0 | 5 votes |
|
public void DrawGlyphListAA(SunGraphics2D sg2d, SurfaceData dest,
GlyphList gl)
{
gl.getBounds(); // Don't delete, bug 4895493
int num = gl.getNumGlyphs();
Region clip = sg2d.getCompClip();
int cx1 = clip.getLoX();
int cy1 = clip.getLoY();
int cx2 = clip.getHiX();
int cy2 = clip.getHiY();
for (int i = 0; i < num; i++) {
gl.setGlyphIndex(i);
int metrics[] = gl.getMetrics();
int gx1 = metrics[0];
int gy1 = metrics[1];
int w = metrics[2];
int gx2 = gx1 + w;
int gy2 = gy1 + metrics[3];
int off = 0;
if (gx1 < cx1) {
off = cx1 - gx1;
gx1 = cx1;
}
if (gy1 < cy1) {
off += (cy1 - gy1) * w;
gy1 = cy1;
}
if (gx2 > cx2) gx2 = cx2;
if (gy2 > cy2) gy2 = cy2;
if (gx2 > gx1 && gy2 > gy1) {
byte alpha[] = gl.getGrayBits();
maskop.MaskFill(sg2d, dest, sg2d.composite,
gx1, gy1, gx2 - gx1, gy2 - gy1,
alpha, off, w);
}
}
}
Example 3
| Source File: GeneralRenderer.java From openjdk-jdk8u with GNU General Public License v2.0 | 5 votes |
|
public PixelWriterDrawHandler(SurfaceData sData, PixelWriter pw,
Region clip, int strokeHint) {
super(clip.getLoX(), clip.getLoY(),
clip.getHiX(), clip.getHiY(),
strokeHint);
this.sData = sData;
this.pw = pw;
this.clip = clip;
}
Example 4
| Source File: GDIWindowSurfaceData.java From jdk8u60 with GNU General Public License v2.0 | 5 votes |
|
public boolean copyArea(SunGraphics2D sg2d,
int x, int y, int w, int h, int dx, int dy)
{
CompositeType comptype = sg2d.imageComp;
if (sg2d.transformState < sg2d.TRANSFORM_TRANSLATESCALE &&
sg2d.clipState != sg2d.CLIP_SHAPE &&
(CompositeType.SrcOverNoEa.equals(comptype) ||
CompositeType.SrcNoEa.equals(comptype)))
{
x += sg2d.transX;
y += sg2d.transY;
int dstx1 = x + dx;
int dsty1 = y + dy;
int dstx2 = dstx1 + w;
int dsty2 = dsty1 + h;
Region clip = sg2d.getCompClip();
if (dstx1 < clip.getLoX()) dstx1 = clip.getLoX();
if (dsty1 < clip.getLoY()) dsty1 = clip.getLoY();
if (dstx2 > clip.getHiX()) dstx2 = clip.getHiX();
if (dsty2 > clip.getHiY()) dsty2 = clip.getHiY();
if (dstx1 < dstx2 && dsty1 < dsty2) {
gdiPipe.devCopyArea(this, dstx1 - dx, dsty1 - dy,
dx, dy,
dstx2 - dstx1, dsty2 - dsty1);
}
return true;
}
return false;
}
Example 5
| Source File: DrawGlyphList.java From Bytecoder with Apache License 2.0 | 5 votes |
|
public void DrawGlyphList(SunGraphics2D sg2d, SurfaceData dest,
GlyphList gl) {
int[] strbounds = gl.getBounds(); // Don't delete, bug 4895493
int num = gl.getNumGlyphs();
Region clip = sg2d.getCompClip();
int cx1 = clip.getLoX();
int cy1 = clip.getLoY();
int cx2 = clip.getHiX();
int cy2 = clip.getHiY();
for (int i = 0; i < num; i++) {
gl.setGlyphIndex(i);
int[] metrics = gl.getMetrics();
int gx1 = metrics[0];
int gy1 = metrics[1];
int w = metrics[2];
int gx2 = gx1 + w;
int gy2 = gy1 + metrics[3];
int off = 0;
if (gx1 < cx1) {
off = cx1 - gx1;
gx1 = cx1;
}
if (gy1 < cy1) {
off += (cy1 - gy1) * w;
gy1 = cy1;
}
if (gx2 > cx2) gx2 = cx2;
if (gy2 > cy2) gy2 = cy2;
if (gx2 > gx1 && gy2 > gy1) {
byte[] alpha = gl.getGrayBits();
maskop.MaskFill(sg2d, dest, sg2d.composite,
gx1, gy1, gx2 - gx1, gy2 - gy1,
alpha, off, w);
}
}
}
Example 6
| Source File: GDIWindowSurfaceData.java From openjdk-8-source with GNU General Public License v2.0 | 5 votes |
|
public boolean copyArea(SunGraphics2D sg2d,
int x, int y, int w, int h, int dx, int dy)
{
CompositeType comptype = sg2d.imageComp;
if (sg2d.transformState < sg2d.TRANSFORM_TRANSLATESCALE &&
sg2d.clipState != sg2d.CLIP_SHAPE &&
(CompositeType.SrcOverNoEa.equals(comptype) ||
CompositeType.SrcNoEa.equals(comptype)))
{
x += sg2d.transX;
y += sg2d.transY;
int dstx1 = x + dx;
int dsty1 = y + dy;
int dstx2 = dstx1 + w;
int dsty2 = dsty1 + h;
Region clip = sg2d.getCompClip();
if (dstx1 < clip.getLoX()) dstx1 = clip.getLoX();
if (dsty1 < clip.getLoY()) dsty1 = clip.getLoY();
if (dstx2 > clip.getHiX()) dstx2 = clip.getHiX();
if (dsty2 > clip.getHiY()) dsty2 = clip.getHiY();
if (dstx1 < dstx2 && dsty1 < dsty2) {
gdiPipe.devCopyArea(this, dstx1 - dx, dsty1 - dy,
dx, dy,
dstx2 - dstx1, dsty2 - dsty1);
}
return true;
}
return false;
}
Example 7
| Source File: DrawGlyphList.java From jdk8u_jdk with GNU General Public License v2.0 | 5 votes |
|
public void DrawGlyphList(SunGraphics2D sg2d, SurfaceData dest,
GlyphList gl, int fromGlyph, int toGlyph) {
Region clip = sg2d.getCompClip();
int cx1 = clip.getLoX();
int cy1 = clip.getLoY();
int cx2 = clip.getHiX();
int cy2 = clip.getHiY();
for (int i = fromGlyph; i < toGlyph; i++) {
gl.setGlyphIndex(i);
int metrics[] = gl.getMetrics();
int gx1 = metrics[0];
int gy1 = metrics[1];
int w = metrics[2];
int gx2 = gx1 + w;
int gy2 = gy1 + metrics[3];
int off = 0;
if (gx1 < cx1) {
off = cx1 - gx1;
gx1 = cx1;
}
if (gy1 < cy1) {
off += (cy1 - gy1) * w;
gy1 = cy1;
}
if (gx2 > cx2) gx2 = cx2;
if (gy2 > cy2) gy2 = cy2;
if (gx2 > gx1 && gy2 > gy1) {
byte alpha[] = gl.getGrayBits();
maskop.MaskFill(sg2d, dest, sg2d.composite,
gx1, gy1, gx2 - gx1, gy2 - gy1,
alpha, off, w);
}
}
}
Example 8
| Source File: DrawGlyphList.java From openjdk-8-source with GNU General Public License v2.0 | 5 votes |
|
public void DrawGlyphList(SunGraphics2D sg2d, SurfaceData dest,
GlyphList gl) {
int strbounds[] = gl.getBounds(); // Don't delete, bug 4895493
int num = gl.getNumGlyphs();
Region clip = sg2d.getCompClip();
int cx1 = clip.getLoX();
int cy1 = clip.getLoY();
int cx2 = clip.getHiX();
int cy2 = clip.getHiY();
for (int i = 0; i < num; i++) {
gl.setGlyphIndex(i);
int metrics[] = gl.getMetrics();
int gx1 = metrics[0];
int gy1 = metrics[1];
int w = metrics[2];
int gx2 = gx1 + w;
int gy2 = gy1 + metrics[3];
int off = 0;
if (gx1 < cx1) {
off = cx1 - gx1;
gx1 = cx1;
}
if (gy1 < cy1) {
off += (cy1 - gy1) * w;
gy1 = cy1;
}
if (gx2 > cx2) gx2 = cx2;
if (gy2 > cy2) gy2 = cy2;
if (gx2 > gx1 && gy2 > gy1) {
byte alpha[] = gl.getGrayBits();
maskop.MaskFill(sg2d, dest, sg2d.composite,
gx1, gy1, gx2 - gx1, gy2 - gy1,
alpha, off, w);
}
}
}
Example 9
| Source File: GeneralRenderer.java From openjdk-jdk8u-backup with GNU General Public License v2.0 | 5 votes |
|
public PixelWriterDrawHandler(SurfaceData sData, PixelWriter pw,
Region clip, int strokeHint) {
super(clip.getLoX(), clip.getLoY(),
clip.getHiX(), clip.getHiY(),
strokeHint);
this.sData = sData;
this.pw = pw;
this.clip = clip;
}
Example 10
| Source File: GeneralRenderer.java From openjdk-jdk8u-backup with GNU General Public License v2.0 | 5 votes |
|
public static void doDrawRect(PixelWriter pw,
SunGraphics2D sg2d, SurfaceData sData,
int x, int y, int w, int h)
{
if (w < 0 || h < 0) {
return;
}
int x2 = Region.dimAdd(Region.dimAdd(x, w), 1);
int y2 = Region.dimAdd(Region.dimAdd(y, h), 1);
Region r = sg2d.getCompClip().getBoundsIntersectionXYXY(x, y, x2, y2);
if (r.isEmpty()) {
return;
}
int cx1 = r.getLoX();
int cy1 = r.getLoY();
int cx2 = r.getHiX();
int cy2 = r.getHiY();
if (w < 2 || h < 2) {
doSetRect(sData, pw, cx1, cy1, cx2, cy2);
return;
}
if (cy1 == y) {
doSetRect(sData, pw, cx1, cy1, cx2, cy1+1);
}
if (cx1 == x) {
doSetRect(sData, pw, cx1, cy1+1, cx1+1, cy2-1);
}
if (cx2 == x2) {
doSetRect(sData, pw, cx2-1, cy1+1, cx2, cy2-1);
}
if (cy2 == y2) {
doSetRect(sData, pw, cx1, cy2-1, cx2, cy2);
}
}
Example 11
| Source File: DrawGlyphListAA.java From TencentKona-8 with GNU General Public License v2.0 | 5 votes |
|
public void DrawGlyphListAA(SunGraphics2D sg2d, SurfaceData dest,
GlyphList gl)
{
gl.getBounds(); // Don't delete, bug 4895493
int num = gl.getNumGlyphs();
Region clip = sg2d.getCompClip();
int cx1 = clip.getLoX();
int cy1 = clip.getLoY();
int cx2 = clip.getHiX();
int cy2 = clip.getHiY();
for (int i = 0; i < num; i++) {
gl.setGlyphIndex(i);
int metrics[] = gl.getMetrics();
int gx1 = metrics[0];
int gy1 = metrics[1];
int w = metrics[2];
int gx2 = gx1 + w;
int gy2 = gy1 + metrics[3];
int off = 0;
if (gx1 < cx1) {
off = cx1 - gx1;
gx1 = cx1;
}
if (gy1 < cy1) {
off += (cy1 - gy1) * w;
gy1 = cy1;
}
if (gx2 > cx2) gx2 = cx2;
if (gy2 > cy2) gy2 = cy2;
if (gx2 > gx1 && gy2 > gy1) {
byte alpha[] = gl.getGrayBits();
maskop.MaskFill(sg2d, dest, sg2d.composite,
gx1, gy1, gx2 - gx1, gy2 - gy1,
alpha, off, w);
}
}
}
Example 12
| Source File: DrawGlyphListAA.java From Bytecoder with Apache License 2.0 | 5 votes |
|
public void DrawGlyphListAA(SunGraphics2D sg2d, SurfaceData dest,
GlyphList gl)
{
gl.getBounds(); // Don't delete, bug 4895493
int num = gl.getNumGlyphs();
Region clip = sg2d.getCompClip();
int cx1 = clip.getLoX();
int cy1 = clip.getLoY();
int cx2 = clip.getHiX();
int cy2 = clip.getHiY();
for (int i = 0; i < num; i++) {
gl.setGlyphIndex(i);
int[] metrics = gl.getMetrics();
int gx1 = metrics[0];
int gy1 = metrics[1];
int w = metrics[2];
int gx2 = gx1 + w;
int gy2 = gy1 + metrics[3];
int off = 0;
if (gx1 < cx1) {
off = cx1 - gx1;
gx1 = cx1;
}
if (gy1 < cy1) {
off += (cy1 - gy1) * w;
gy1 = cy1;
}
if (gx2 > cx2) gx2 = cx2;
if (gy2 > cy2) gy2 = cy2;
if (gx2 > gx1 && gy2 > gy1) {
byte[] alpha = gl.getGrayBits();
maskop.MaskFill(sg2d, dest, sg2d.composite,
gx1, gy1, gx2 - gx1, gy2 - gy1,
alpha, off, w);
}
}
}
Example 13
| Source File: GeneralRenderer.java From TencentKona-8 with GNU General Public License v2.0 | 5 votes |
|
public PixelWriterDrawHandler(SurfaceData sData, PixelWriter pw,
Region clip, int strokeHint) {
super(clip.getLoX(), clip.getLoY(),
clip.getHiX(), clip.getHiY(),
strokeHint);
this.sData = sData;
this.pw = pw;
this.clip = clip;
}
Example 14
| Source File: DrawGlyphListColor.java From jdk8u_jdk with GNU General Public License v2.0 | 5 votes |
|
public void DrawGlyphListColor(SunGraphics2D sg2d, SurfaceData dest,
GlyphList gl, int fromGlyph, int toGlyph) {
Region clip = sg2d.getCompClip();
int cx1 = clip.getLoX();
int cy1 = clip.getLoY();
int cx2 = clip.getHiX();
int cy2 = clip.getHiY();
for (int i = fromGlyph; i < toGlyph; i++) {
gl.setGlyphIndex(i);
int metrics[] = gl.getMetrics();
int x = metrics[0];
int y = metrics[1];
int w = metrics[2];
int h = metrics[3];
int gx1 = x;
int gy1 = y;
int gx2 = x + w;
int gy2 = y + h;
if (gx1 < cx1) gx1 = cx1;
if (gy1 < cy1) gy1 = cy1;
if (gx2 > cx2) gx2 = cx2;
if (gy2 > cy2) gy2 = cy2;
if (gx2 > gx1 && gy2 > gy1) {
blit.Blit(gl.getColorGlyphData(), dest, AlphaComposite.SrcOver, clip,
gx1 - x, gy1 - y, gx1, gy1, gx2 - gx1, gy2 - gy1);
}
}
}
Example 15
| Source File: DrawGlyphListAA.java From jdk8u_jdk with GNU General Public License v2.0 | 5 votes |
|
public void DrawGlyphListAA(SunGraphics2D sg2d, SurfaceData dest,
GlyphList gl, int fromGlyph, int toGlyph)
{
Region clip = sg2d.getCompClip();
int cx1 = clip.getLoX();
int cy1 = clip.getLoY();
int cx2 = clip.getHiX();
int cy2 = clip.getHiY();
for (int i = fromGlyph; i < toGlyph; i++) {
gl.setGlyphIndex(i);
int metrics[] = gl.getMetrics();
int gx1 = metrics[0];
int gy1 = metrics[1];
int w = metrics[2];
int gx2 = gx1 + w;
int gy2 = gy1 + metrics[3];
int off = 0;
if (gx1 < cx1) {
off = cx1 - gx1;
gx1 = cx1;
}
if (gy1 < cy1) {
off += (cy1 - gy1) * w;
gy1 = cy1;
}
if (gx2 > cx2) gx2 = cx2;
if (gy2 > cy2) gy2 = cy2;
if (gx2 > gx1 && gy2 > gy1) {
byte alpha[] = gl.getGrayBits();
maskop.MaskFill(sg2d, dest, sg2d.composite,
gx1, gy1, gx2 - gx1, gy2 - gy1,
alpha, off, w);
}
}
}
Example 16
| Source File: GDIWindowSurfaceData.java From jdk8u-jdk with GNU General Public License v2.0 | 5 votes |
|
public boolean copyArea(SunGraphics2D sg2d,
int x, int y, int w, int h, int dx, int dy)
{
CompositeType comptype = sg2d.imageComp;
if (sg2d.transformState < sg2d.TRANSFORM_TRANSLATESCALE &&
sg2d.clipState != sg2d.CLIP_SHAPE &&
(CompositeType.SrcOverNoEa.equals(comptype) ||
CompositeType.SrcNoEa.equals(comptype)))
{
x += sg2d.transX;
y += sg2d.transY;
int dstx1 = x + dx;
int dsty1 = y + dy;
int dstx2 = dstx1 + w;
int dsty2 = dsty1 + h;
Region clip = sg2d.getCompClip();
if (dstx1 < clip.getLoX()) dstx1 = clip.getLoX();
if (dsty1 < clip.getLoY()) dsty1 = clip.getLoY();
if (dstx2 > clip.getHiX()) dstx2 = clip.getHiX();
if (dsty2 > clip.getHiY()) dsty2 = clip.getHiY();
if (dstx1 < dstx2 && dsty1 < dsty2) {
gdiPipe.devCopyArea(this, dstx1 - dx, dsty1 - dy,
dx, dy,
dstx2 - dstx1, dsty2 - dsty1);
}
return true;
}
return false;
}
Example 17
| Source File: SunGraphics2D.java From jdk8u-jdk with GNU General Public License v2.0 | 4 votes |
|
/**
* Returns a rectangle in image coordinates that may be required
* in order to draw the given image into the given clipping region
* through a pair of AffineTransforms. In addition, horizontal and
* vertical padding factors for antialising and interpolation may
* be used.
*/
private static Rectangle getImageRegion(RenderedImage img,
Region compClip,
AffineTransform transform,
AffineTransform xform,
int padX, int padY) {
Rectangle imageRect =
new Rectangle(img.getMinX(), img.getMinY(),
img.getWidth(), img.getHeight());
Rectangle result = null;
try {
double p[] = new double[8];
p[0] = p[2] = compClip.getLoX();
p[4] = p[6] = compClip.getHiX();
p[1] = p[5] = compClip.getLoY();
p[3] = p[7] = compClip.getHiY();
// Inverse transform the output bounding rect
transform.inverseTransform(p, 0, p, 0, 4);
xform.inverseTransform(p, 0, p, 0, 4);
// Determine a bounding box for the inverse transformed region
double x0,x1,y0,y1;
x0 = x1 = p[0];
y0 = y1 = p[1];
for (int i = 2; i < 8; ) {
double pt = p[i++];
if (pt < x0) {
x0 = pt;
} else if (pt > x1) {
x1 = pt;
}
pt = p[i++];
if (pt < y0) {
y0 = pt;
} else if (pt > y1) {
y1 = pt;
}
}
// This is padding for anti-aliasing and such. It may
// be more than is needed.
int x = (int)x0 - padX;
int w = (int)(x1 - x0 + 2*padX);
int y = (int)y0 - padY;
int h = (int)(y1 - y0 + 2*padY);
Rectangle clipRect = new Rectangle(x,y,w,h);
result = clipRect.intersection(imageRect);
} catch (NoninvertibleTransformException nte) {
// Worst case bounds are the bounds of the image.
result = imageRect;
}
return result;
}
Example 18
| Source File: SunGraphics2D.java From openjdk-8-source with GNU General Public License v2.0 | 4 votes |
|
/**
* Returns a rectangle in image coordinates that may be required
* in order to draw the given image into the given clipping region
* through a pair of AffineTransforms. In addition, horizontal and
* vertical padding factors for antialising and interpolation may
* be used.
*/
private static Rectangle getImageRegion(RenderedImage img,
Region compClip,
AffineTransform transform,
AffineTransform xform,
int padX, int padY) {
Rectangle imageRect =
new Rectangle(img.getMinX(), img.getMinY(),
img.getWidth(), img.getHeight());
Rectangle result = null;
try {
double p[] = new double[8];
p[0] = p[2] = compClip.getLoX();
p[4] = p[6] = compClip.getHiX();
p[1] = p[5] = compClip.getLoY();
p[3] = p[7] = compClip.getHiY();
// Inverse transform the output bounding rect
transform.inverseTransform(p, 0, p, 0, 4);
xform.inverseTransform(p, 0, p, 0, 4);
// Determine a bounding box for the inverse transformed region
double x0,x1,y0,y1;
x0 = x1 = p[0];
y0 = y1 = p[1];
for (int i = 2; i < 8; ) {
double pt = p[i++];
if (pt < x0) {
x0 = pt;
} else if (pt > x1) {
x1 = pt;
}
pt = p[i++];
if (pt < y0) {
y0 = pt;
} else if (pt > y1) {
y1 = pt;
}
}
// This is padding for anti-aliasing and such. It may
// be more than is needed.
int x = (int)x0 - padX;
int w = (int)(x1 - x0 + 2*padX);
int y = (int)y0 - padY;
int h = (int)(y1 - y0 + 2*padY);
Rectangle clipRect = new Rectangle(x,y,w,h);
result = clipRect.intersection(imageRect);
} catch (NoninvertibleTransformException nte) {
// Worst case bounds are the bounds of the image.
result = imageRect;
}
return result;
}
Example 19
| Source File: SunGraphics2D.java From openjdk-jdk8u-backup with GNU General Public License v2.0 | 4 votes |
|
/**
* Returns a rectangle in image coordinates that may be required
* in order to draw the given image into the given clipping region
* through a pair of AffineTransforms. In addition, horizontal and
* vertical padding factors for antialising and interpolation may
* be used.
*/
private static Rectangle getImageRegion(RenderedImage img,
Region compClip,
AffineTransform transform,
AffineTransform xform,
int padX, int padY) {
Rectangle imageRect =
new Rectangle(img.getMinX(), img.getMinY(),
img.getWidth(), img.getHeight());
Rectangle result = null;
try {
double p[] = new double[8];
p[0] = p[2] = compClip.getLoX();
p[4] = p[6] = compClip.getHiX();
p[1] = p[5] = compClip.getLoY();
p[3] = p[7] = compClip.getHiY();
// Inverse transform the output bounding rect
transform.inverseTransform(p, 0, p, 0, 4);
xform.inverseTransform(p, 0, p, 0, 4);
// Determine a bounding box for the inverse transformed region
double x0,x1,y0,y1;
x0 = x1 = p[0];
y0 = y1 = p[1];
for (int i = 2; i < 8; ) {
double pt = p[i++];
if (pt < x0) {
x0 = pt;
} else if (pt > x1) {
x1 = pt;
}
pt = p[i++];
if (pt < y0) {
y0 = pt;
} else if (pt > y1) {
y1 = pt;
}
}
// This is padding for anti-aliasing and such. It may
// be more than is needed.
int x = (int)x0 - padX;
int w = (int)(x1 - x0 + 2*padX);
int y = (int)y0 - padY;
int h = (int)(y1 - y0 + 2*padY);
Rectangle clipRect = new Rectangle(x,y,w,h);
result = clipRect.intersection(imageRect);
} catch (NoninvertibleTransformException nte) {
// Worst case bounds are the bounds of the image.
result = imageRect;
}
return result;
}
Example 20
| Source File: SunGraphics2D.java From hottub with GNU General Public License v2.0 | 4 votes |
|
/**
* Returns a rectangle in image coordinates that may be required
* in order to draw the given image into the given clipping region
* through a pair of AffineTransforms. In addition, horizontal and
* vertical padding factors for antialising and interpolation may
* be used.
*/
private static Rectangle getImageRegion(RenderedImage img,
Region compClip,
AffineTransform transform,
AffineTransform xform,
int padX, int padY) {
Rectangle imageRect =
new Rectangle(img.getMinX(), img.getMinY(),
img.getWidth(), img.getHeight());
Rectangle result = null;
try {
double p[] = new double[8];
p[0] = p[2] = compClip.getLoX();
p[4] = p[6] = compClip.getHiX();
p[1] = p[5] = compClip.getLoY();
p[3] = p[7] = compClip.getHiY();
// Inverse transform the output bounding rect
transform.inverseTransform(p, 0, p, 0, 4);
xform.inverseTransform(p, 0, p, 0, 4);
// Determine a bounding box for the inverse transformed region
double x0,x1,y0,y1;
x0 = x1 = p[0];
y0 = y1 = p[1];
for (int i = 2; i < 8; ) {
double pt = p[i++];
if (pt < x0) {
x0 = pt;
} else if (pt > x1) {
x1 = pt;
}
pt = p[i++];
if (pt < y0) {
y0 = pt;
} else if (pt > y1) {
y1 = pt;
}
}
// This is padding for anti-aliasing and such. It may
// be more than is needed.
int x = (int)x0 - padX;
int w = (int)(x1 - x0 + 2*padX);
int y = (int)y0 - padY;
int h = (int)(y1 - y0 + 2*padY);
Rectangle clipRect = new Rectangle(x,y,w,h);
result = clipRect.intersection(imageRect);
} catch (NoninvertibleTransformException nte) {
// Worst case bounds are the bounds of the image.
result = imageRect;
}
return result;
}
