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#2
听秋2016-05-12 12:42
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程序代码：/**
* $Id:DrawRect.java $
*
* Copyright 2004 ~ 2005 JingFei International Cooperation LTD. All rights reserved. *
*/
package com.jfimagine.jfdraw.draw;
import java.awt.Graphics;
import java.awt.Graphics2D;
import java.awt.event.MouseEvent;
import com.jfimagine.jfgraph.geom.JFPoint;
import com.jfimagine.jfgraph.shape.base.AbstractObject;
import com.jfimagine.jfgraph.shape.base.AbstractShape;
import com.jfimagine.jfgraph.shape.base.Port;
import com.jfimagine.jfgraph.shape.base.ShapeConst;
import com.jfimagine.jfgraph.shape.rectangle.AbstractRectangle;
import com.jfimagine.jfgraph.shape.decorate.GridFormat;
import com.jfimagine.jfdraw.draw.AbstractDrawEvent;
import com.jfimagine.jfdraw.draw.DrawConst;
/**
* Draw rect class. It's a class to manipulate JFRectangle operations.
*
* @author CookieMaker
*
* @version $Revision: 1.00 $
*/
public class DrawRect extends AbstractDrawEvent{
/**
* When a modifier, shift or ctrl button is pressed down. We need to force this line be vertical or horizontal one.
*
* @param e Current mouse event
* @param pnt Current mouse position
*/
private void adjustPointByModifier(MouseEvent e,JFPoint pnt){
if (e==null || pnt==null)
return;
int shapeType =m_drawState.getShapeType();
boolean isHLabelLine =shapeType==ShapeConst.SHAPETYPE_HLABELLINE;
boolean isVLabelLine =shapeType==ShapeConst.SHAPETYPE_VLABELLINE;
JFPoint startPoint =m_drawState.getStartPoint();
if (startPoint!=null && (isModifierDown(e) || isHLabelLine || isVLabelLine)){
//x,y offsets
double x =pnt.getX()-startPoint.getX();
double y =pnt.getY()-startPoint.getY();
switch (shapeType){
//force vertical or horizontal line:
case ShapeConst.SHAPETYPE_LABELLINE:
case ShapeConst.SHAPETYPE_HLABELLINE:
case ShapeConst.SHAPETYPE_VLABELLINE:
case ShapeConst.SHAPETYPE_ARC:
case ShapeConst.SHAPETYPE_CHORD:
case ShapeConst.SHAPETYPE_PIE:
case ShapeConst.SHAPETYPE_CURVE:
if ((Math.abs(x)>Math.abs(y) && !isVLabelLine) || isHLabelLine)
pnt.setY(startPoint.getY());
else
pnt.setX(startPoint.getX());
break;
//force square:
default:
if (Math.abs(x)>Math.abs(y))
pnt.setY(startPoint.getY()+x);
else
pnt.setX(startPoint.getX()+y);
break;
}
}
}
/** Do mouse release
* @param e Current mouse event.
* @param lastPort The port can be attached for current object.
*/
public void doMouseRelease(MouseEvent e,Port attachPort){
double zoom =m_drawCanvas.getZoomScale();
JFPoint pnt=new JFPoint(e.getX()/zoom,e.getY()/zoom);
//left mouse down, always doing some confirm operations.
if (isLeftDown(e) || isModifierDown(e)){
//if not a start point assigned, then assign a start point here.
if (!m_drawState.getStartPointAssigned()){
GridFormat gridFormat =m_drawCanvas.getGridFormat();
JFPoint snapPos =gridFormat.getSnapPos(pnt.getX(),pnt.getY());
pnt.setValue(snapPos);
//set start point as current mouse position.
m_drawState.setStartPoint(pnt);
startPort =attachPort;
//start point assigned, then process the next step of drawing/dragging/transforming.
}else{
adjustPointByModifier(e,pnt);
GridFormat gridFormat =m_drawCanvas.getGridFormat();
JFPoint snapPos =gridFormat.getSnapPos(pnt.getX(),pnt.getY());
pnt.setValue(snapPos);
//correct current position according to the possible attach port.
if (attachPort!=null){
pnt.setValue(attachPort.getXOffset(),attachPort.getYOffset());
}
if (m_drawState.getDrawState()==DrawConst.DRAWSTATE_DRAW){
//draw a new xor drag shape to eliminate the last dragging xor shape.
drawDragShape();
//add a new point for shape.
m_drawState.setLastPoint(pnt);
m_drawState.setLastTempPoint(pnt);
}
//if a new point of rectangle is settled, then we finish drawing rectangle here.
if (!m_drawState.getStartPoint().equals(pnt) && ifCompleteDrawing(true)){
endPort =attachPort;
//Graphics context
Graphics g =m_drawCanvas.getGraphics();
finalizeMouseEvent(g);
g.dispose();
}
}
//right mouse down, always doing some cancel operations.
}else if (isRightDown(e)){
if (m_drawState.getStartPointAssigned()){
if (m_drawState.getDrawState()==DrawConst.DRAWSTATE_DRAW){
//draw xor drag shape to eliminate the last xor shape.
drawDragShape();
//cancel last point.
m_drawState.cancelLastPoint(pnt);
}
}
}
}
/** Draw xor rectangle between lastPoint and lastTempPoint
*/
protected void drawDragShape(){
Graphics g=m_drawCanvas.getGraphics();
drawCurrentShape(g,true);
g.dispose();
}
/** draw current shape in xor or paint mode*/
public void drawCurrentShape(Graphics g,boolean isXorMode){
if (!ifCompleteDrawing(false)) return;
if (isXorMode) {
setPaintMode(g,true);
}else{
setPaintMode(g,false);
}
AbstractObject obj =m_drawState.getCurrentShape();
if (m_page.isHidePorts())
obj.setShowDesign(false);
else
obj.setShowDesign(true);
if (obj instanceof AbstractShape){
((AbstractShape)obj).draw(g,isXorMode);
if (!isXorMode){
((AbstractShape)obj).drawPicked(g,false);
}
}
}
/**A temporary moving piont for mouse move event*/
private JFPoint m_movingPoint =new JFPoint();
/** Do mouse move*/
public void doMouseMove(MouseEvent e){
double zoom =m_drawCanvas.getZoomScale();
m_movingPoint.setValue(e.getX()/zoom,e.getY()/zoom);
adjustPointByModifier(e,m_movingPoint);
if (m_drawState.getStartPointAssigned()){
GridFormat gridFormat =m_drawCanvas.getGridFormat();
JFPoint snapPos =gridFormat.getSnapPos(m_movingPoint.getX(),m_movingPoint.getY());
if (m_drawState.getDrawState()==DrawConst.DRAWSTATE_DRAW){
drawDragShape();
//add a new point for shape.
//for adding a new point to rectangle,
//it's only modifying the second end point for rectangle actually.
m_drawState.setLastPoint(snapPos.getX(),snapPos.getY());
//draw new shape in dragging.
m_drawState.setLastTempPoint(snapPos.getX(),snapPos.getY());
drawDragShape();
}
}
}
}
* $Id:DrawRect.java $
*
* Copyright 2004 ~ 2005 JingFei International Cooperation LTD. All rights reserved. *
*/
package com.jfimagine.jfdraw.draw;
import java.awt.Graphics;
import java.awt.Graphics2D;
import java.awt.event.MouseEvent;
import com.jfimagine.jfgraph.geom.JFPoint;
import com.jfimagine.jfgraph.shape.base.AbstractObject;
import com.jfimagine.jfgraph.shape.base.AbstractShape;
import com.jfimagine.jfgraph.shape.base.Port;
import com.jfimagine.jfgraph.shape.base.ShapeConst;
import com.jfimagine.jfgraph.shape.rectangle.AbstractRectangle;
import com.jfimagine.jfgraph.shape.decorate.GridFormat;
import com.jfimagine.jfdraw.draw.AbstractDrawEvent;
import com.jfimagine.jfdraw.draw.DrawConst;
/**
* Draw rect class. It's a class to manipulate JFRectangle operations.
*
* @author CookieMaker
*
* @version $Revision: 1.00 $
*/
public class DrawRect extends AbstractDrawEvent{
/**
* When a modifier, shift or ctrl button is pressed down. We need to force this line be vertical or horizontal one.
*
* @param e Current mouse event
* @param pnt Current mouse position
*/
private void adjustPointByModifier(MouseEvent e,JFPoint pnt){
if (e==null || pnt==null)
return;
int shapeType =m_drawState.getShapeType();
boolean isHLabelLine =shapeType==ShapeConst.SHAPETYPE_HLABELLINE;
boolean isVLabelLine =shapeType==ShapeConst.SHAPETYPE_VLABELLINE;
JFPoint startPoint =m_drawState.getStartPoint();
if (startPoint!=null && (isModifierDown(e) || isHLabelLine || isVLabelLine)){
//x,y offsets
double x =pnt.getX()-startPoint.getX();
double y =pnt.getY()-startPoint.getY();
switch (shapeType){
//force vertical or horizontal line:
case ShapeConst.SHAPETYPE_LABELLINE:
case ShapeConst.SHAPETYPE_HLABELLINE:
case ShapeConst.SHAPETYPE_VLABELLINE:
case ShapeConst.SHAPETYPE_ARC:
case ShapeConst.SHAPETYPE_CHORD:
case ShapeConst.SHAPETYPE_PIE:
case ShapeConst.SHAPETYPE_CURVE:
if ((Math.abs(x)>Math.abs(y) && !isVLabelLine) || isHLabelLine)
pnt.setY(startPoint.getY());
else
pnt.setX(startPoint.getX());
break;
//force square:
default:
if (Math.abs(x)>Math.abs(y))
pnt.setY(startPoint.getY()+x);
else
pnt.setX(startPoint.getX()+y);
break;
}
}
}
/** Do mouse release
* @param e Current mouse event.
* @param lastPort The port can be attached for current object.
*/
public void doMouseRelease(MouseEvent e,Port attachPort){
double zoom =m_drawCanvas.getZoomScale();
JFPoint pnt=new JFPoint(e.getX()/zoom,e.getY()/zoom);
//left mouse down, always doing some confirm operations.
if (isLeftDown(e) || isModifierDown(e)){
//if not a start point assigned, then assign a start point here.
if (!m_drawState.getStartPointAssigned()){
GridFormat gridFormat =m_drawCanvas.getGridFormat();
JFPoint snapPos =gridFormat.getSnapPos(pnt.getX(),pnt.getY());
pnt.setValue(snapPos);
//set start point as current mouse position.
m_drawState.setStartPoint(pnt);
startPort =attachPort;
//start point assigned, then process the next step of drawing/dragging/transforming.
}else{
adjustPointByModifier(e,pnt);
GridFormat gridFormat =m_drawCanvas.getGridFormat();
JFPoint snapPos =gridFormat.getSnapPos(pnt.getX(),pnt.getY());
pnt.setValue(snapPos);
//correct current position according to the possible attach port.
if (attachPort!=null){
pnt.setValue(attachPort.getXOffset(),attachPort.getYOffset());
}
if (m_drawState.getDrawState()==DrawConst.DRAWSTATE_DRAW){
//draw a new xor drag shape to eliminate the last dragging xor shape.
drawDragShape();
//add a new point for shape.
m_drawState.setLastPoint(pnt);
m_drawState.setLastTempPoint(pnt);
}
//if a new point of rectangle is settled, then we finish drawing rectangle here.
if (!m_drawState.getStartPoint().equals(pnt) && ifCompleteDrawing(true)){
endPort =attachPort;
//Graphics context
Graphics g =m_drawCanvas.getGraphics();
finalizeMouseEvent(g);
g.dispose();
}
}
//right mouse down, always doing some cancel operations.
}else if (isRightDown(e)){
if (m_drawState.getStartPointAssigned()){
if (m_drawState.getDrawState()==DrawConst.DRAWSTATE_DRAW){
//draw xor drag shape to eliminate the last xor shape.
drawDragShape();
//cancel last point.
m_drawState.cancelLastPoint(pnt);
}
}
}
}
/** Draw xor rectangle between lastPoint and lastTempPoint
*/
protected void drawDragShape(){
Graphics g=m_drawCanvas.getGraphics();
drawCurrentShape(g,true);
g.dispose();
}
/** draw current shape in xor or paint mode*/
public void drawCurrentShape(Graphics g,boolean isXorMode){
if (!ifCompleteDrawing(false)) return;
if (isXorMode) {
setPaintMode(g,true);
}else{
setPaintMode(g,false);
}
AbstractObject obj =m_drawState.getCurrentShape();
if (m_page.isHidePorts())
obj.setShowDesign(false);
else
obj.setShowDesign(true);
if (obj instanceof AbstractShape){
((AbstractShape)obj).draw(g,isXorMode);
if (!isXorMode){
((AbstractShape)obj).drawPicked(g,false);
}
}
}
/**A temporary moving piont for mouse move event*/
private JFPoint m_movingPoint =new JFPoint();
/** Do mouse move*/
public void doMouseMove(MouseEvent e){
double zoom =m_drawCanvas.getZoomScale();
m_movingPoint.setValue(e.getX()/zoom,e.getY()/zoom);
adjustPointByModifier(e,m_movingPoint);
if (m_drawState.getStartPointAssigned()){
GridFormat gridFormat =m_drawCanvas.getGridFormat();
JFPoint snapPos =gridFormat.getSnapPos(m_movingPoint.getX(),m_movingPoint.getY());
if (m_drawState.getDrawState()==DrawConst.DRAWSTATE_DRAW){
drawDragShape();
//add a new point for shape.
//for adding a new point to rectangle,
//it's only modifying the second end point for rectangle actually.
m_drawState.setLastPoint(snapPos.getX(),snapPos.getY());
//draw new shape in dragging.
m_drawState.setLastTempPoint(snapPos.getX(),snapPos.getY());
drawDragShape();
}
}
}
}