basicinternalframeui.java

java jdk 1.4的源码

	}

        public void mouseReleased(MouseEvent e) {
           if (discardRelease) {
	     discardRelease = false;
	     return;
	  }
	    if (resizeDir == RESIZE_NONE) {
	        getDesktopManager().endDraggingFrame(frame);	
		dragging = false;
	    } else {
	      Container c = frame.getTopLevelAncestor();
	      if (c instanceof JFrame) {
		((JFrame)frame.getTopLevelAncestor()).getGlassPane().setCursor(
                  Cursor.getPredefinedCursor(Cursor.DEFAULT_CURSOR));
            
	        ((JFrame)frame.getTopLevelAncestor()).getGlassPane(
                  ).setVisible(false);
	      } else if (c instanceof JApplet) {
		((JApplet)c).getGlassPane().setCursor(
		  Cursor.getPredefinedCursor(Cursor.DEFAULT_CURSOR));
		((JApplet)c).getGlassPane().setVisible(false);
	      } else if (c instanceof JWindow) {
		((JWindow)c).getGlassPane().setCursor(
                  Cursor.getPredefinedCursor(Cursor.DEFAULT_CURSOR));
		((JWindow)c).getGlassPane().setVisible(false);
	      } else if (c instanceof JDialog) {
		((JDialog)c).getGlassPane().setCursor(
                  Cursor.getPredefinedCursor(Cursor.DEFAULT_CURSOR));
		((JDialog)c).getGlassPane().setVisible(false);
	      }
	      getDesktopManager().endResizingFrame(frame);
	    }
            _x = 0;
            _y = 0;
            __x = 0;
            __y = 0;
            startingBounds = null;
            resizeDir = RESIZE_NONE;
        }
                
        public void mousePressed(MouseEvent e) {
            Point p = SwingUtilities.convertPoint((Component)e.getSource(), 
                        e.getX(), e.getY(), null);
            __x = e.getX();
            __y = e.getY();
            _x = p.x;
            _y = p.y;
            startingBounds = frame.getBounds();
	    resizeDir = RESIZE_NONE;

            if(!frame.isSelected()) {
                try { frame.setSelected(true); }
		catch (PropertyVetoException e1) { }
            }

	    Insets i = frame.getInsets();

	    Point ep = new Point(__x, __y);
            if (e.getSource() == getNorthPane()) {
		Point np = getNorthPane().getLocation();
		ep.x += np.x;
		ep.y += np.y;
	    }

            if (e.getSource() == getNorthPane()) {
		if (ep.x > i.left && ep.y > i.top && ep.x < frame.getWidth() - i.right) {
		    getDesktopManager().beginDraggingFrame(frame);
		    dragging = true;
		    return;
		}
            }
	    if (!frame.isResizable()) {
	      return;
	    }

	    if (e.getSource() == frame || e.getSource() == getNorthPane()) {
                if (ep.x <= i.left) {
		    if (ep.y < resizeCornerSize + i.top) {
                        resizeDir = NORTH_WEST;
                    } else if (ep.y > frame.getHeight()
                              - resizeCornerSize - i.bottom) {
                        resizeDir = SOUTH_WEST;
		    } else {  
                        resizeDir = WEST;
}
                } else if (ep.x >= frame.getWidth() - i.right) {
		    if (ep.y < resizeCornerSize + i.top) {
                        resizeDir = NORTH_EAST;
                    } else if (ep.y > frame.getHeight() 
                              - resizeCornerSize - i.bottom) {
                        resizeDir = SOUTH_EAST;
		    } else {               
                        resizeDir = EAST;
		    }
                } else if (ep.y <= i.top) {
		    if (ep.x < resizeCornerSize + i.left) {
                        resizeDir = NORTH_WEST;
                    } else if (ep.x > frame.getWidth() 
                              - resizeCornerSize - i.right) {
                        resizeDir = NORTH_EAST;
                    } else {             
                        resizeDir = NORTH;
		    }
                } else if (ep.y >= frame.getHeight() - i.bottom) {
		    if (ep.x < resizeCornerSize + i.left) {
                        resizeDir = SOUTH_WEST;
                    } else if (ep.x > frame.getWidth()
                              - resizeCornerSize - i.right) {
                        resizeDir = SOUTH_EAST;
                    } else {                
                      resizeDir = SOUTH;
		    }
                } else {
		  /* the mouse press happened inside the frame, not in the
		     border */
		  discardRelease = true;
		  return;
		}
		Cursor s = Cursor.getPredefinedCursor(Cursor.DEFAULT_CURSOR);
                switch (resizeDir) {
		case SOUTH:
		  s = Cursor.getPredefinedCursor(Cursor.S_RESIZE_CURSOR);
		  break; 
		case NORTH:
		  s = Cursor.getPredefinedCursor(Cursor.N_RESIZE_CURSOR);
		  break; 
		case WEST:
		  s = Cursor.getPredefinedCursor(Cursor.W_RESIZE_CURSOR);
		  break; 
		case EAST:
		  s = Cursor.getPredefinedCursor(Cursor.E_RESIZE_CURSOR);
		  break; 
		case SOUTH_EAST:
		  s = Cursor.getPredefinedCursor(Cursor.SE_RESIZE_CURSOR);
		  break; 
		case SOUTH_WEST:
		  s = Cursor.getPredefinedCursor(Cursor.SW_RESIZE_CURSOR);
		  break; 
		case NORTH_WEST:
		  s = Cursor.getPredefinedCursor(Cursor.NW_RESIZE_CURSOR);
		  break; 
		case NORTH_EAST:
		  s = Cursor.getPredefinedCursor(Cursor.NE_RESIZE_CURSOR);
		  break;
		} 
		Container c = frame.getTopLevelAncestor();
		if (c instanceof JFrame){
		  ((JFrame)c).getGlassPane().setVisible(true);
		  ((JFrame)c).getGlassPane().setCursor(s);
		} else if (c instanceof JApplet){
		  ((JApplet)c).getGlassPane().setVisible(true);
		  ((JApplet)c).getGlassPane().setCursor(s);
		} else if (c instanceof JWindow){
		  ((JWindow)c).getGlassPane().setVisible(true);
		  ((JWindow)c).getGlassPane().setCursor(s);
		} else if (c instanceof JDialog){
		  ((JDialog)c).getGlassPane().setVisible(true);
		  ((JDialog)c).getGlassPane().setCursor(s);
		}
		getDesktopManager().beginResizingFrame(frame, resizeDir);
		return;
            }
        }

        public void mouseDragged(MouseEvent e) {   

	    if ( startingBounds == null ) {
	      // (STEVE) Yucky work around for bug ID 4106552
		 return;
	    }
                                     
            Point p = SwingUtilities.convertPoint((Component)e.getSource(), 
                    e.getX(), e.getY(), null);
            int deltaX = _x - p.x;
            int deltaY = _y - p.y;
	    Dimension min = frame.getMinimumSize();
	    Dimension max = frame.getMaximumSize();
	    int newX, newY, newW, newH;
	    Insets i = frame.getInsets();
        
            // Handle a MOVE 
            if (dragging) {
                if (frame.isMaximum() || ((e.getModifiers() &
                        InputEvent.BUTTON1_MASK) !=
                        InputEvent.BUTTON1_MASK)) {
                    // don't allow moving of frames if maximixed or left mouse
                    // button was not used.
                    return;
                }
		int pWidth, pHeight;
		Dimension s = frame.getParent().getSize();
		pWidth = s.width;
		pHeight = s.height;


	        newX = startingBounds.x - deltaX;
	        newY = startingBounds.y - deltaY;

		// Make sure we stay in-bounds
		if(newX + i.left <= -__x)
		    newX = -__x - i.left + 1;
		if(newY + i.top <= -__y)
		    newY = -__y - i.top + 1;
		if(newX + __x + i.right >= pWidth)
		    newX = pWidth - __x - i.right - 1;
		if(newY + __y + i.bottom >= pHeight)
		    newY =  pHeight - __y - i.bottom - 1;

		getDesktopManager().dragFrame(frame, newX, newY);
                return;
            }

            if(!frame.isResizable()) {
                return;
            }

	    newX = frame.getX();
	    newY = frame.getY();
	    newW = frame.getWidth();
	    newH = frame.getHeight();

            parentBounds = frame.getParent().getBounds();

            switch(resizeDir) {
            case RESIZE_NONE:
                return;
            case NORTH:      
		if(startingBounds.height + deltaY < min.height)
		    deltaY = -(startingBounds.height - min.height);
		else if(startingBounds.height + deltaY > max.height)
		    deltaY = max.height - startingBounds.height;
		if (startingBounds.y - deltaY < 0) {deltaY = startingBounds.y;}

		newX = startingBounds.x;
		newY = startingBounds.y - deltaY;
		newW = startingBounds.width;
		newH = startingBounds.height + deltaY;
                break;
            case NORTH_EAST:     
		if(startingBounds.height + deltaY < min.height)
		    deltaY = -(startingBounds.height - min.height);
		else if(startingBounds.height + deltaY > max.height)
		    deltaY = max.height - startingBounds.height;
		if (startingBounds.y - deltaY < 0) {deltaY = startingBounds.y;}

		if(startingBounds.width - deltaX < min.width)
		    deltaX = startingBounds.width - min.width;
		else if(startingBounds.width - deltaX > max.width)
		    deltaX = -(max.width - startingBounds.width);
		if (startingBounds.x + startingBounds.width - deltaX >
		    parentBounds.width) {
		  deltaX = startingBounds.x + startingBounds.width -
		    parentBounds.width;
		}

		newX = startingBounds.x;
		newY = startingBounds.y - deltaY;
		newW = startingBounds.width - deltaX;
		newH = startingBounds.height + deltaY;
                break;
            case EAST:      
		if(startingBounds.width - deltaX < min.width)
		    deltaX = startingBounds.width - min.width;
		else if(startingBounds.width - deltaX > max.width)
		    deltaX = -(max.width - startingBounds.width);
		if (startingBounds.x + startingBounds.width - deltaX >
		    parentBounds.width) {
		  deltaX = startingBounds.x + startingBounds.width -
		    parentBounds.width;
		}

		newW = startingBounds.width - deltaX;
		newH = startingBounds.height;
                break;
            case SOUTH_EAST:     
		if(startingBounds.width - deltaX < min.width)
		    deltaX = startingBounds.width - min.width;
		else if(startingBounds.width - deltaX > max.width)
		    deltaX = -(max.width - startingBounds.width);
		if (startingBounds.x + startingBounds.width - deltaX >
		    parentBounds.width) {
		  deltaX = startingBounds.x + startingBounds.width -
		    parentBounds.width;
		}

		if(startingBounds.height - deltaY < min.height)
		    deltaY = startingBounds.height - min.height;
		else if(startingBounds.height - deltaY > max.height)
		    deltaY = -(max.height - startingBounds.height);
		if (startingBounds.y + startingBounds.height - deltaY >
		     parentBounds.height) {
		  deltaY = startingBounds.y + startingBounds.height -
		    parentBounds.height ;
		}
			
		newW = startingBounds.width - deltaX;
		newH = startingBounds.height - deltaY;
                break;
            case SOUTH:      
		if(startingBounds.height - deltaY < min.height)
		    deltaY = startingBounds.height - min.height;
		else if(startingBounds.height - deltaY > max.height)
		    deltaY = -(max.height - startingBounds.height);
		if (startingBounds.y + startingBounds.height - deltaY >
		     parentBounds.height) {
		  deltaY = startingBounds.y + startingBounds.height -
		    parentBounds.height ;
		}

 		newW = startingBounds.width;
		newH = startingBounds.height - deltaY;
                break;
            case SOUTH_WEST:
		if(startingBounds.height - deltaY < min.height)
		    deltaY = startingBounds.height - min.height;
		else if(startingBounds.height - deltaY > max.height)
		    deltaY = -(max.height - startingBounds.height);
		if (startingBounds.y + startingBounds.height - deltaY >
		     parentBounds.height) {
		  deltaY = startingBounds.y + startingBounds.height -
		    parentBounds.height ;
		}

		if(startingBounds.width + deltaX < min.width)
		    deltaX = -(startingBounds.width - min.width);
		else if(startingBounds.width + deltaX > max.width)
		    deltaX = max.width - startingBounds.width;
		if (startingBounds.x - deltaX < 0) {
		  deltaX = startingBounds.x;
		}

		newX = startingBounds.x - deltaX;
		newY = startingBounds.y;
		newW = startingBounds.width + deltaX;
		newH = startingBounds.height - deltaY;
                break;
            case WEST:      
		if(startingBounds.width + deltaX < min.width)
		    deltaX = -(startingBounds.width - min.width);
		else if(startingBounds.width + deltaX > max.width)
		    deltaX = max.width - startingBounds.width;
		if (startingBounds.x - deltaX < 0) {
		  deltaX = startingBounds.x;
		}

		newX = startingBounds.x - deltaX;
		newY = startingBounds.y;
		newW = startingBounds.width + deltaX;
		newH = startingBounds.height;
                break;
            case NORTH_WEST:     
		if(startingBounds.width + deltaX < min.width)
		    deltaX = -(startingBounds.width - min.width);
		else if(startingBounds.width + deltaX > max.width)
		    deltaX = max.width - startingBounds.width;
		if (startingBounds.x - deltaX < 0) {
		  deltaX = startingBounds.x;
		}

		if(startingBounds.height + deltaY < min.height)
		    deltaY = -(startingBounds.height - min.height);
		else if(startingBounds.height + deltaY > max.height)
		    deltaY = max.height - startingBounds.height;
		if (startingBounds.y - deltaY < 0) {deltaY = startingBounds.y;}