edu.mines.jtk.sgl.PolygonState Maven / Gradle / Ivy
Go to download
Show more of this group Show more artifacts with this name
Show all versions of edu-mines-jtk Show documentation
Show all versions of edu-mines-jtk Show documentation
Java packages for science and engineering
/****************************************************************************
Copyright 2004, Colorado School of Mines and others.
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
****************************************************************************/
package edu.mines.jtk.sgl;
import static edu.mines.jtk.ogl.Gl.*;
/**
* OpenGL polygon state.
* @author Dave Hale, Colorado School of Mines
* @version 2005.05.31
*/
public class PolygonState implements State {
/**
* Constructs polygon state.
*/
public PolygonState() {
}
/**
* Determines whether cull face mode is set.
* @return true, if set; false, otherwise.
*/
public boolean hasCullFace() {
return _cullFaceSet;
}
/**
* Gets the cull face mode.
* @return the cull face mode.
*/
public int getCullFace() {
return _cullFace;
}
/**
* Sets the cull face mode.
* @param mode the cull face mode.
*/
public void setCullFace(int mode) {
_cullFace = mode;
_cullFaceSet = true;
}
/**
* Unsets the cull face mode.
*/
public void unsetCullFace() {
_cullFace = _cullFaceDefault;
_cullFaceSet = false;
}
/**
* Determines whether front face mode is set.
* @return true, if set; false, otherwise.
*/
public boolean hasFrontFace() {
return _frontFaceSet;
}
/**
* Gets the front face mode.
* @return the front face mode.
*/
public int getFrontFace() {
return _frontFace;
}
/**
* Sets the front face mode.
* @param mode the front face mode.
*/
public void setFrontFace(int mode) {
_frontFace = mode;
_frontFaceSet = true;
}
/**
* Unsets the front face mode.
*/
public void unsetFrontFace() {
_frontFace = _frontFaceDefault;
_frontFaceSet = false;
}
/**
* Determines whether polygon mode for front faces is set.
* @return true, if set; false, otherwise.
*/
public boolean hasPolygonModeFront() {
return _polygonModeFrontSet;
}
/**
* Determines whether polygon mode for back faces is set.
* @return true, if set; false, otherwise.
*/
public boolean hasPolygonModeBack() {
return _polygonModeBackSet;
}
/**
* Gets the polygon mode for front faces.
* @return the polygon mode.
*/
public int getPolygonModeFront() {
return _polygonModeFront;
}
/**
* Gets the polygon mode for back faces.
* @return the polygon mode.
*/
public int getPolygonModeBack() {
return _polygonModeBack;
}
/**
* Sets the polygon mode for front and back faces.
* @param mode the polygon mode.
*/
public void setPolygonMode(int mode) {
_polygonModeFront = _polygonModeBack = mode;
_polygonModeFrontSet = _polygonModeBackSet = true;
}
/**
* Sets the polygon mode for front faces.
* @param mode the polygon mode.
*/
public void setPolygonModeFront(int mode) {
_polygonModeFront = mode;
_polygonModeFrontSet = true;
}
/**
* Sets the polygon mode for back faces.
* @param mode the polygon mode.
*/
public void setPolygonModeBack(int mode) {
_polygonModeBack = mode;
_polygonModeBackSet = true;
}
/**
* Unsets the polygon mode for front and back faces.
*/
public void unsetPolygonMode() {
_polygonModeFront = _polygonModeBack = _polygonModeDefault;
_polygonModeFrontSet = _polygonModeBackSet = false;
}
/**
* Unsets the polygon mode for front faces.
*/
public void unsetPolygonModeFront() {
_polygonModeFront = _polygonModeDefault;
_polygonModeFrontSet = false;
}
/**
* Unsets the polygon mode for back faces.
*/
public void unsetPolygonModeBack() {
_polygonModeBack = _polygonModeDefault;
_polygonModeBackSet = false;
}
/**
* Determines whether polygon offset is set.
* @return true, if set; false, otherwise.
*/
public boolean hasPolygonOffset() {
return _polygonOffsetSet;
}
/**
* Gets the polygon offset factor.
* @return the polygon offset factor.
*/
public float getPolygonOffsetFactor() {
return _polygonOffsetFactor;
}
/**
* Gets the polygon offset units.
* @return the polygon offset units.
*/
public float getPolygonOffsetUnits() {
return _polygonOffsetUnits;
}
/**
* Sets the polygon offset.
* @param factor the polygon offset factor.
* @param units the polygon offset units.
*/
public void setPolygonOffset(float factor, float units) {
_polygonOffsetFactor = factor;
_polygonOffsetUnits = units;
_polygonOffsetSet = true;
}
/**
* Unsets the polygon offset.
*/
public void unsetPolygonOffset() {
_polygonOffsetFactor = _polygonOffsetFactorDefault;
_polygonOffsetUnits = _polygonOffsetUnitsDefault;
_polygonOffsetSet = false;
}
/**
* Determines whether polygon offset fill is set.
* @return true, if set; false, otherwise.
*/
public boolean hasPolygonOffsetFill() {
return _polygonOffsetFillSet;
}
/**
* Gets the polygon offset fill.
* @return the polygon offset fill.
*/
public boolean getPolygonOffsetFill() {
return _polygonOffsetFill;
}
/**
* Sets the polygon offset fill.
* @param fill the polygon offset fill.
*/
public void setPolygonOffsetFill(boolean fill) {
_polygonOffsetFill = fill;
_polygonOffsetFillSet = true;
}
/**
* Unsets the polygon offset fill.
*/
public void unsetPolygonOffsetFill() {
_polygonOffsetFill = _polygonOffsetFillDefault;
_polygonOffsetFillSet = false;
}
/**
* Determines whether polygon offset line is set.
* @return true, if set; false, otherwise.
*/
public boolean hasPolygonOffsetLine() {
return _polygonOffsetLineSet;
}
/**
* Gets the polygon offset line.
* @return the polygon offset line.
*/
public boolean getPolygonOffsetLine() {
return _polygonOffsetLine;
}
/**
* Sets the polygon offset line.
* @param line the polygon offset line.
*/
public void setPolygonOffsetLine(boolean line) {
_polygonOffsetLine = line;
_polygonOffsetLineSet = true;
}
/**
* Unsets the polygon offset line.
*/
public void unsetPolygonOffsetLine() {
_polygonOffsetLine = _polygonOffsetLineDefault;
_polygonOffsetLineSet = false;
}
/**
* Determines whether polygon offset point is set.
* @return true, if set; false, otherwise.
*/
public boolean hasPolygonOffsetPoint() {
return _polygonOffsetPointSet;
}
/**
* Gets the polygon offset point.
* @return the polygon offset point.
*/
public boolean getPolygonOffsetPoint() {
return _polygonOffsetPoint;
}
/**
* Sets the polygon offset point.
* @param point the polygon offset point.
*/
public void setPolygonOffsetPoint(boolean point) {
_polygonOffsetPoint = point;
_polygonOffsetPointSet = true;
}
/**
* Determines whether polygon stipple is set.
* @return true, if set; false, otherwise.
*/
public boolean hasPolygonStipple() {
return _polygonStippleSet;
}
/**
* Gets the polygon stipple.
* @return the polygon stipple.
*/
public byte[] getPolygonStipple() {
return _polygonStipple.clone();
}
/**
* Sets the polygon stipple.
* @param mask the polygon stipple.
*/
public void setPolygonStipple(byte[] mask) {
_polygonStipple = mask.clone();
_polygonStippleSet = true;
}
/**
* Unsets the polygon stipple.
*/
public void unsetPolygonStipple() {
_polygonStipple = _polygonStippleDefault;
_polygonStippleSet = false;
}
public void apply() {
if (_cullFaceSet) {
glEnable(GL_CULL_FACE);
glCullFace(_cullFace);
}
if (_frontFaceSet) {
glEnable(GL_FRONT_FACE);
glFrontFace(_frontFace);
}
if (_polygonModeFrontSet &&
_polygonModeBackSet &&
_polygonModeFront==_polygonModeBack) {
glPolygonMode(GL_FRONT_AND_BACK,_polygonModeFront);
} else {
if (_polygonModeFrontSet)
glPolygonMode(GL_FRONT,_polygonModeFront);
if (_polygonModeBackSet)
glPolygonMode(GL_BACK,_polygonModeBack);
}
if (_polygonOffsetSet)
glPolygonOffset(_polygonOffsetFactor,_polygonOffsetUnits);
if (_polygonOffsetFillSet) {
if (_polygonOffsetFill) {
glEnable(GL_POLYGON_OFFSET_FILL);
} else {
glDisable(GL_POLYGON_OFFSET_FILL);
}
}
if (_polygonOffsetLineSet) {
if (_polygonOffsetLine) {
glEnable(GL_POLYGON_OFFSET_LINE);
} else {
glDisable(GL_POLYGON_OFFSET_LINE);
}
}
if (_polygonOffsetPointSet) {
if (_polygonOffsetPoint) {
glEnable(GL_POLYGON_OFFSET_POINT);
} else {
glDisable(GL_POLYGON_OFFSET_POINT);
}
}
if (_polygonStippleSet) {
glEnable(GL_POLYGON_STIPPLE);
glPolygonStipple(_polygonStipple,0);
}
}
public int getAttributeBits() {
return GL_ENABLE_BIT | GL_POLYGON_BIT;
}
private static int _cullFaceDefault = GL_BACK;
private int _cullFace = _cullFaceDefault;
private boolean _cullFaceSet;
private static int _frontFaceDefault = GL_CCW;
private int _frontFace = _frontFaceDefault;
private boolean _frontFaceSet;
private static int _polygonModeDefault = GL_FILL;
private int _polygonModeFront = _polygonModeDefault;
private int _polygonModeBack = _polygonModeDefault;
private boolean _polygonModeFrontSet;
private boolean _polygonModeBackSet;
private static float _polygonOffsetFactorDefault = 0.0f;
private static float _polygonOffsetUnitsDefault = 0.0f;
private float _polygonOffsetFactor = _polygonOffsetFactorDefault;
private float _polygonOffsetUnits = _polygonOffsetUnitsDefault;
private boolean _polygonOffsetSet;
private static boolean _polygonOffsetFillDefault = false;
private boolean _polygonOffsetFill = _polygonOffsetFillDefault;
private boolean _polygonOffsetFillSet;
private static boolean _polygonOffsetLineDefault = false;
private boolean _polygonOffsetLine = _polygonOffsetLineDefault;
private boolean _polygonOffsetLineSet;
private static boolean _polygonOffsetPointDefault = false;
private boolean _polygonOffsetPoint = _polygonOffsetPointDefault;
private boolean _polygonOffsetPointSet;
private static byte ONES = (byte)0xFF;
private static byte[] _polygonStippleDefault = {
ONES,ONES,ONES,ONES,
ONES,ONES,ONES,ONES,
ONES,ONES,ONES,ONES,
ONES,ONES,ONES,ONES,
ONES,ONES,ONES,ONES,
ONES,ONES,ONES,ONES,
ONES,ONES,ONES,ONES,
ONES,ONES,ONES,ONES,
ONES,ONES,ONES,ONES,
ONES,ONES,ONES,ONES,
ONES,ONES,ONES,ONES,
ONES,ONES,ONES,ONES,
ONES,ONES,ONES,ONES,
ONES,ONES,ONES,ONES,
ONES,ONES,ONES,ONES,
ONES,ONES,ONES,ONES,
ONES,ONES,ONES,ONES,
ONES,ONES,ONES,ONES,
ONES,ONES,ONES,ONES,
ONES,ONES,ONES,ONES,
ONES,ONES,ONES,ONES,
ONES,ONES,ONES,ONES,
ONES,ONES,ONES,ONES,
ONES,ONES,ONES,ONES,
ONES,ONES,ONES,ONES,
ONES,ONES,ONES,ONES,
ONES,ONES,ONES,ONES,
ONES,ONES,ONES,ONES,
ONES,ONES,ONES,ONES,
ONES,ONES,ONES,ONES,
ONES,ONES,ONES,ONES,
ONES,ONES,ONES,ONES,
};
private byte[] _polygonStipple = _polygonStippleDefault;
private boolean _polygonStippleSet;
}