📄 canvaspanel.java
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redoStack.push(tempInfo);
}
repaint();
}
/*----------------------------------------------------------------------------*/
public void redo()
{
StepInfo tempInfo;
if(redoStack.isEmpty())
JOptionPane.showMessageDialog(null,"Can't Redo","Painter",JOptionPane.INFORMATION_MESSAGE);
else
{
tempInfo = (StepInfo)redoStack.pop();
switch(tempInfo.getStepType())
{
case 1: vLine.add(tempInfo.getStepCoordinate());
break;
case 2: vSquare.add(tempInfo.getStepCoordinate());
break;
case 3: vOval.add(tempInfo.getStepCoordinate());
break;
case 4: vPolygon.add(tempInfo.getStepCoordinate());
break;
case 5: vRoundRect.add(tempInfo.getStepCoordinate());
break;
case 6: vFreeHand.add(tempInfo.getStepCoordinate());
break;
case 22:vSolidSquare.add(tempInfo.getStepCoordinate());
break;
case 33:vSolidOval.add(tempInfo.getStepCoordinate());
break;
case 44:vSolidPolygon.add(tempInfo.getStepCoordinate());
break;
case 55:vSolidRoundRect.add(tempInfo.getStepCoordinate());
break;
}
undoStack.push(tempInfo);
}
repaint();
}
/*----------------------------------------------------------------------------*/
public void clearCanvas()
{
vFreeHand.removeAllElements();
vLine.removeAllElements();
vOval.removeAllElements();
vPolygon.removeAllElements();
vRoundRect.removeAllElements();
vSolidOval.removeAllElements();
vSolidPolygon.removeAllElements();
vSolidRoundRect.removeAllElements();
vSolidSquare.removeAllElements();
vSquare.removeAllElements();
undoStack.clear();
redoStack.clear();
repaint();
}
/*----------------------------------------------------------------------------*/
public void SaveCanvasToFile()
{
if(fileName != null)
{
vFile.removeAllElements();
vFile.addElement(vFreeHand);
vFile.addElement(vLine);
vFile.addElement(vOval);
vFile.addElement(vPolygon);
vFile.addElement(vRoundRect);
vFile.addElement(vSolidOval);
vFile.addElement(vSolidPolygon);
vFile.addElement(vSolidRoundRect);
vFile.addElement(vSolidSquare);
vFile.addElement(vSquare);
vFile.addElement(new Color(backGroundColor.getRGB()));
RenderedImage rendImage = myCreateImage();
try
{
FileOutputStream fos = new FileOutputStream(fileName);
ObjectOutputStream oos = new ObjectOutputStream(fos);
oos.writeObject(vFile);
JOptionPane.showMessageDialog(null,"File Saved","Painter",JOptionPane.INFORMATION_MESSAGE);
}catch(Exception exp){}
try
{
File file = new File(fileName.toString() + ".jpg");
ImageIO.write(rendImage, "jpg", file);
}catch (IOException e) {}
}
else
{
SaveAsCanvasToFile();
}
repaint();
}
/*----------------------------------------------------------------------------*/
public void SaveAsCanvasToFile()
{
JFileChooser fileChooser = new JFileChooser();
fileChooser.setFileSelectionMode(JFileChooser.FILES_ONLY);
int result = fileChooser.showSaveDialog(null);
if(result == JFileChooser.CANCEL_OPTION) return;
fileName = fileChooser.getSelectedFile();
if(fileName == null || fileName.getName().equals(""))
JOptionPane.showMessageDialog(null,"Invalid File Name","Painter",JOptionPane.ERROR_MESSAGE);
else
{
vFile.removeAllElements();
vFile.addElement(vFreeHand);
vFile.addElement(vLine);
vFile.addElement(vOval);
vFile.addElement(vPolygon);
vFile.addElement(vRoundRect);
vFile.addElement(vSolidOval);
vFile.addElement(vSolidPolygon);
vFile.addElement(vSolidRoundRect);
vFile.addElement(vSolidSquare);
vFile.addElement(vSquare);
vFile.addElement(new Color(backGroundColor.getRGB()));
RenderedImage rendImage = myCreateImage();
try
{
FileOutputStream fos = new FileOutputStream(fileName);
ObjectOutputStream oos = new ObjectOutputStream(fos);
oos.writeObject(vFile);
JOptionPane.showMessageDialog(null,"File Saved","Painter",JOptionPane.INFORMATION_MESSAGE);
}catch(Exception exp){}
try {
File file = new File(fileName.toString() + ".jpg");
ImageIO.write(rendImage, "jpg", file);
}catch (IOException e) {}
}
repaint();
}
/*----------------------------------------------------------------------------*/
public void OpenCanvasFile()
{
JFileChooser fileChooser = new JFileChooser();
fileChooser.setFileSelectionMode(JFileChooser.FILES_ONLY);
int result = fileChooser.showOpenDialog(null);
if(result == JFileChooser.CANCEL_OPTION) return;
fileName = fileChooser.getSelectedFile();
if(fileName != null)
{
try{
FileInputStream fis = new FileInputStream(fileName);
ObjectInputStream ois = new ObjectInputStream(fis);
vFile = (Vector) ois.readObject();
this.clearCanvas();
vFreeHand = (Vector)vFile.elementAt(0);
vLine = (Vector)vFile.elementAt(1);
vOval = (Vector)vFile.elementAt(2);
vPolygon = (Vector)vFile.elementAt(3);
vRoundRect = (Vector)vFile.elementAt(4);
vSolidOval = (Vector)vFile.elementAt(5);
vSolidPolygon = (Vector)vFile.elementAt(6);
vSolidRoundRect = (Vector)vFile.elementAt(7);
vSolidSquare = (Vector)vFile.elementAt(8);
vSquare = (Vector)vFile.elementAt(9);
backGroundColor = (Color)vFile.elementAt(10);
this.setBackground(backGroundColor);
}
catch(Exception exp){
JOptionPane.showMessageDialog(null,"Can't Open File","Painter",JOptionPane.INFORMATION_MESSAGE);
}
}
else{
fileName = null;
}
repaint();
}
/*----------------------------------------------------------------------------*/
public boolean isExistPolygonBuffer()
{
return polygonBuffer;
}
/*----------------------------------------------------------------------------*/
public void flushPolygonBuffer()
{
if(!solidMode)
{
vPolygon.add(new Coordinate(xPolygon, yPolygon, foreGroundColor));
undoStack.push(new StepInfo(POLYGON,new Coordinate(xPolygon, yPolygon, foreGroundColor)));
}
else
{
vSolidPolygon.add(new Coordinate(xPolygon, yPolygon, foreGroundColor));
undoStack.push(new StepInfo(SOLID_POLYGON,new Coordinate(xPolygon, yPolygon, foreGroundColor)));
}
xPolygon.removeAllElements();
yPolygon.removeAllElements();
polygonBuffer = false;
repaint();
}
/*----------------------------------------------------------------------------*/
private class Coordinate implements Serializable
{
private int x1,y1,x2,y2;
private Color foreColor;
private Vector xPoly, yPoly;
public Coordinate (int inx1,int iny1,int inx2, int iny2, Color color)
{
x1 = inx1;
y1 = iny1;
x2 = inx2;
y2 = iny2;
foreColor = color;
}
public Coordinate(Vector inXPolygon, Vector inYPolygon, Color color)
{
xPoly = (Vector)inXPolygon.clone();
yPoly = (Vector)inYPolygon.clone();
foreColor = color;
}
public Color colour()
{
return foreColor;
}
public int getX1 ()
{
return x1;
}
public int getX2 ()
{
return x2;
}
public int getY1 ()
{
return y1;
}
public int getY2 ()
{
return y2;
}
public Vector getXPolygon()
{
return xPoly;
}
public Vector getYPolygon()
{
return yPoly;
}
}
/*----------------------------------------------------------------------------*/
private class StepInfo implements Serializable
{
private int stepType;
private Coordinate stepCoordinate;
public StepInfo(int inStepType, Coordinate inStepCoordinate)
{
stepType = inStepType;
stepCoordinate = inStepCoordinate;
}
public int getStepType()
{
return stepType;
}
public Coordinate getStepCoordinate()
{
return stepCoordinate;
}
}
/*----------------------------------------------------------------------------*/
private RenderedImage myCreateImage()
{
BufferedImage bufferedImage = new BufferedImage(600,390, BufferedImage.TYPE_INT_RGB);
Graphics g = bufferedImage.createGraphics();
redrawVectorBuffer(g);
g.dispose();
return bufferedImage;
}
/*----------------------------------------------------------------------------*/
private void redrawVectorBuffer(Graphics g)
{
for (int i=0;i<vFreeHand.size();i++){
g.setColor(((Coordinate)vFreeHand.elementAt(i)).colour());
g.drawLine(((Coordinate)vFreeHand.elementAt(i)).getX1(),((Coordinate)vFreeHand.elementAt(i)).getY1(),((Coordinate)vFreeHand.elementAt(i)).getX2(),((Coordinate)vFreeHand.elementAt(i)).getY2());
}
for (int i=0;i<vLine.size();i++){
g.setColor(((Coordinate)vLine.elementAt(i)).colour());
g.drawLine(((Coordinate)vLine.elementAt(i)).getX1(),((Coordinate)vLine.elementAt(i)).getY1(),((Coordinate)vLine.elementAt(i)).getX2(),((Coordinate)vLine.elementAt(i)).getY2());
}
for (int i=0;i<vOval.size();i++){
g.setColor(((Coordinate)vOval.elementAt(i)).colour());
g.drawOval(((Coordinate)vOval.elementAt(i)).getX1(),((Coordinate)vOval.elementAt(i)).getY1(),((Coordinate)vOval.elementAt(i)).getX2()-((Coordinate)vOval.elementAt(i)).getX1(),((Coordinate)vOval.elementAt(i)).getY2()-((Coordinate)vOval.elementAt(i)).getY1());
}
for (int i=0;i<vRoundRect.size();i++){
g.setColor(((Coordinate)vRoundRect.elementAt(i)).colour());
g.drawRoundRect(((Coordinate)vRoundRect.elementAt(i)).getX1(),((Coordinate)vRoundRect.elementAt(i)).getY1(),((Coordinate)vRoundRect.elementAt(i)).getX2()-((Coordinate)vRoundRect.elementAt(i)).getX1(),((Coordinate)vRoundRect.elementAt(i)).getY2()-((Coordinate)vRoundRect.elementAt(i)).getY1(),25,25);
}
for (int i=0;i<vSolidOval.size();i++){
g.setColor(((Coordinate)vSolidOval.elementAt(i)).colour());
g.fillOval(((Coordinate)vSolidOval.elementAt(i)).getX1(),((Coordinate)vSolidOval.elementAt(i)).getY1(),((Coordinate)vSolidOval.elementAt(i)).getX2()-((Coordinate)vSolidOval.elementAt(i)).getX1(),((Coordinate)vSolidOval.elementAt(i)).getY2()-((Coordinate)vSolidOval.elementAt(i)).getY1());
}
for (int i=0;i<vSolidRoundRect.size();i++){
g.setColor(((Coordinate)vSolidRoundRect.elementAt(i)).colour());
g.fillRoundRect(((Coordinate)vSolidRoundRect.elementAt(i)).getX1(),((Coordinate)vSolidRoundRect.elementAt(i)).getY1(),((Coordinate)vSolidRoundRect.elementAt(i)).getX2()-((Coordinate)vSolidRoundRect.elementAt(i)).getX1(),((Coordinate)vSolidRoundRect.elementAt(i)).getY2()-((Coordinate)vSolidRoundRect.elementAt(i)).getY1(),25,25);
}
for (int i=0;i<vSquare.size();i++){
g.setColor(((Coordinate)vSquare.elementAt(i)).colour());
g.drawRect(((Coordinate)vSquare.elementAt(i)).getX1(),((Coordinate)vSquare.elementAt(i)).getY1(),((Coordinate)vSquare.elementAt(i)).getX2()-((Coordinate)vSquare.elementAt(i)).getX1(),((Coordinate)vSquare.elementAt(i)).getY2()-((Coordinate)vSquare.elementAt(i)).getY1());
}
for (int i=0;i<vSolidSquare.size();i++){
g.setColor(((Coordinate)vSolidSquare.elementAt(i)).colour());
g.fillRect(((Coordinate)vSolidSquare.elementAt(i)).getX1(),((Coordinate)vSolidSquare.elementAt(i)).getY1(),((Coordinate)vSolidSquare.elementAt(i)).getX2()-((Coordinate)vSolidSquare.elementAt(i)).getX1(),((Coordinate)vSolidSquare.elementAt(i)).getY2()-((Coordinate)vSolidSquare.elementAt(i)).getY1());
}
for(int i=0;i<vPolygon.size();i++){
int xPos[] = new int[((Coordinate)vPolygon.elementAt(i)).getXPolygon().size()];
int yPos[] = new int[((Coordinate)vPolygon.elementAt(i)).getYPolygon().size()];
for(int count=0;count<xPos.length;count++)
{
xPos[count] = ((Integer)((Coordinate)vPolygon.elementAt(i)).getXPolygon().elementAt(count)).intValue();
yPos[count] = ((Integer)((Coordinate)vPolygon.elementAt(i)).getYPolygon().elementAt(count)).intValue();
}
g.setColor(((Coordinate)vPolygon.elementAt(i)).colour());
g.drawPolygon(xPos,yPos,xPos.length);
}
for(int i=0;i<vSolidPolygon.size();i++){
int xPos[] = new int[((Coordinate)vSolidPolygon.elementAt(i)).getXPolygon().size()];
int yPos[] = new int[((Coordinate)vSolidPolygon.elementAt(i)).getYPolygon().size()];
for(int count=0;count<xPos.length;count++)
{
xPos[count] = ((Integer)((Coordinate)vSolidPolygon.elementAt(i)).getXPolygon().elementAt(count)).intValue();
yPos[count] = ((Integer)((Coordinate)vSolidPolygon.elementAt(i)).getYPolygon().elementAt(count)).intValue();
}
g.setColor(((Coordinate)vSolidPolygon.elementAt(i)).colour());
g.fillPolygon(xPos,yPos,xPos.length);
}
}
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