pvpanel.java

来自「导出ORACLE数据库对象DDL语句的程序」· Java 代码 · 共 460 行

package com.icbcsdc.ddlexp.ui.model;
import java.awt.AWTEvent;
import java.awt.Color;
import java.awt.Component;
import java.awt.Dimension;
import java.awt.Graphics;
import java.awt.Insets;
import java.awt.Rectangle;

import javax.swing.JFrame;
import javax.swing.border.Border;
import javax.swing.border.EtchedBorder;
//import pv.util.*;
/**
The PVPanel provides capabilities for drawing a custom border, shadow and additional
gaps between the border and the component.
<br>This class extends the JScrollPane and supports all of its
methods and properties.
<br><H3>Features:</H3>
	<UL>
	<LI>Border: swing or PVBorder class
	<LI>Border color
	<LI>Shadow: none/5 styles with any width
	<LI>Shadow color
	<LI>Extra gaps between JPVTree and its container with custom paintings
	</UL>
It is designed for the JPVTreeView and JPVTableView;
though, it can be used with any other component as well.
@version 6.00 07/06/01
@author Viktor Snezhko
*/
public class PVPanel extends javax.swing.JScrollPane
{
	/**
	Border color.
	@serial
	*/
	protected Color m_clrB;
	/**
	Shadow color.
	@serial
	*/
	protected Color m_clrS = Color.gray;
	/**
	Border style.
	@serial
	*/
	protected int m_iBodr = -1;
	//--------------------------
	// 0x00000007 - shadow style
	// 0x000000f8 - shadow width
	// 0x00003f00 - gap on the top
	// 0x000fc000 - gap on the left
	// 0x03f00000 - gap on the bottom
	// 0x3c000000 - gap on the right
	// 0x40000000 - preferred size is set
	// 0x80000000 - table
	/**
	Internal flags.
	@serial
	*/
	int m_0 = 0x00000028;
	/**
	Background image.
	<br>It is painted only if it is an instance of Icon or Image
	class and isOpaque() is false.
	<br><I>Examples:</I>
		<OL>
		<LI>pv.jfcx.JPVTreeView pvTree1 = new pv.jfcx.JPVTreeView();<br>
		pvTree1.setOpaque(false);<br>
		pvTree1.m_image = new Icon()<br>
		{
			<UL>
			public void paintIcon(Component c, Graphics g, int x, int y)<br>
			{
				<UL>
				Rectangle r = c.getBounds();<br>
				((pv.jfcx.PVPanel)c).adjustRect(r, false);<br>
				g.setColor(Color.red);<br>
				g.fillOval(x, y, r.width, r.height);
				</UL>
			}<br>
			public int getIconWidth(){return 0;}//dummy<br>
			public int getIconHeight(){return 0;}//dummy<br>
			</UL>
		};
		<LI>pv.jfcx.JPVTreeView pvTree1 = new pv.jfcx.JPVTreeView();<br>
		// assume that the "this" is instance of Applet or JApplet<br>
		pvTree1.setOpaque(false);<br>
		pvTree1.m_image = pv.util.PVImage.file(this, "imageFile.gif"));
		</OL>
	@serial
	*/
	public Object m_image;
	/**
	Constructor.
	*/
	public PVPanel(){ this(null); }
	/**
	Constructor.
	@param c component that is set to the viewport of the scroll-pane.
	*/
	public PVPanel(Component c){ super(c); }
	/**
	Set preferred size.
	@param d preferred size.
	@see #getPreferredSize
	*/
	public void setPreferredSize(Dimension d)
	{ m_0 |= 0x40000000; if(d == null) m_0 &= 0xbfffffff; super.setPreferredSize(d); }
	/**
	Get preferred size.
	<br><I>Notes:</I>
		<UL>
		<LI>If the "setPreferredSize" was not set, then the "getSize" is used.
		<LI>If width is less than 2, then the value 200 is used.
		<LI>If height is less than 2, then the value 200 is used.
		</UL>
	@see #setPreferredSize
	*/
	public Dimension getPreferredSize()
	{
		//-----------
		// 0x40000000 - preferred size is set
		Dimension s = new Dimension(((m_0 & 0x40000000) == 0) ? getSize() : super.getPreferredSize());
		if(s.width < 2) s.width = 200;
		if(s.height < 2) s.height = 200;
		return s;
	}
	/**
	Adjust rectangle for Shadow, Border/BorderStyle, and Gaps.
	<br>It is similar to "adjustRect(r, true)".
	@param r bounds of PVPanel.
	*/
	public void adjustRect(Rectangle r){ adjustRect(r, true); }
	/**
	Calculate client area.
	@param r bounds of PVPanel.
	@param gap True: including gaps, false: only border and shadow.
	*/
	public void adjustRect(Rectangle r, boolean gap)
	{
		int i = getShadow();
		PVBorder.shadow(null, r, null, null, i, getShadowWidth());
		if((i = getBorderStyle()) == -1)
		{
			Border b = getBorder();
			if(b != null)
			{
				i = b.getBorderInsets(this).left;
				r.x += i; r.y += i; r.width -= (i += i); r.height -= i;
			}
		}
		else if(i != 0) PVBorder.draw(null, r, i, null);
		if(gap)
		{
			r.y += (i = getGap(0)); r.height -= i;
			r.x += (i = getGap(1)); r.width -= i;
			r.height -= getGap(2);
			r.width -= getGap(3);
		}
	}
	/**
	Adjust insets for Shadow, Border/BorderStyle, and Gaps.
	*/
	public Insets getInsets()
	{
		Rectangle r = new Rectangle(getSize());
		Insets ins = new Insets(0, 0, r.height, r.width);
		adjustRect(r, true);
		ins.right -= (r.x + r.width);
		ins.bottom -= (r.y + r.height);
		ins.top = r.y; ins.left = r.x;
		return ins;
	}
	/**
	Set values of gaps that are painted between component and border.
	<I>Notes:</I>
		<OL>
		<LI>The method "paintGap" can be used for custom painting.
		<LI><I>Example of use.</I><br>
		The JTree starts to paint nodes from the very top-left corner.
		To shift the whole tree painting to the right and down by 3 pixels,-
		the following can be used:<br>
		pvPanel1.setGaps(new Insets(3, 3, 0, 0));
		</OL>
	@param gaps spaces. The null is equivalent to the "new Insets(0,0,0,0)".
		<UL>
		<LI>"gaps.top" - height of the gap at the top. Range: 0..63.
		<LI>"gaps.left" - width of the gap on the left. Range: 0..63.
		<LI>"gaps.bottom" - height of the gap at the bottom. Range: 0..63.
		<LI>"gaps.right" - width of gap on the right. Range: 0..15.
		</UL>
	@see #getGaps
	@see #getGap
	@see #paintGap
	*/
	public void setGaps(Insets gaps)
	{
		//-----------------------------
		// 0x00003f00 - gap on the top
		// 0x000fc000 - gap on the left
		// 0x03f00000 - gap on the bottom
		// 0x3c000000 - gap on the right
		m_0 &= 0xc00000ff;
		if(gaps != null) m_0 |= (((gaps.top & 0x3f) << 8) | ((gaps.left & 0x3f) << 14) |
			((gaps.bottom & 0x3f) << 20) | ((gaps.right & 0xf) << 26));
		doLayout();
	}
	/**
	Get values of gaps that are painted between the component and border.
	@return Gaps between the inner edges of the border and the bounds
	of the component.
	@see #setGaps
	*/
	public Insets getGaps(){ return new Insets(getGap(0), getGap(1), getGap(2), getGap(3)); }
	/**
	Get value of the gap for a particular side.
	@param side position of a gap. Possible values:
		<UL>
		0 - top<br>
		1 - left<br>
		2 - bottom<br>
		3 - right
		</UL>
	*/
	//-----------------------------
	// 0x00003f00 - gap on the top
	// 0x000fc000 - gap on the left
	// 0x03f00000 - gap on the bottom
	// 0x3c000000 - gap on the right
	public int getGap(int side){ return (m_0 >> (8 + side * 6)) & ((side == 3) ? 0xf : 0x3f); }
	/**
	Set background color to null.
	(fix a misbehavior within the Metal LookAndFeel).
	*/
	public void updateUI()
	{
		super.updateUI();
		enableEvents(AWTEvent.MOUSE_EVENT_MASK | AWTEvent.MOUSE_MOTION_EVENT_MASK);
		setBackground(null);
	}
	/**
	Draw shadow, border and gaps.
	*/
	protected void paintBorder(Graphics g)
	{
		try
		{
			Rectangle r = new Rectangle(getSize());
			int i = getShadow();
			//--------------------------------------
			// draw shadow
			PVBorder.shadow(g, r, getShadowColor(), (getParent() == null) ? Color.lightGray : getParent().getBackground(), i, getShadowWidth());
			if((i = getBorderStyle()) == -1)
			{
				Border b = getBorder();
				if(b != null)
				{
					b.paintBorder(this, g, r.x, r.y, r.width, r.height);
					i = b.getBorderInsets(this).left;
					r.x += i; r.y += i; r.height -= (i += i); r.width -= i;
				}
			}
			else if(i != 0) PVBorder.draw(g, r, i, getBorderColor());
			if((i = getGap(0)) > 0)
			{
				paintGap(g, 0, r.x, r.y, r.width, i);
				r.y += i;
				r.height -= i;
			}
			if((i = getGap(1)) > 0)
			{
				paintGap(g, 1, r.x, r.y, i, r.height);
				r.x += i;
				r.width -= i;
			}
			if((i = getGap(2)) > 0) paintGap(g, 2, r.x, r.y + (r.height -= i), r.width, i);
			if((i = getGap(3)) > 0) paintGap(g, 3, r.x + r.width - i, r.y, i, r.height);
		}catch(Exception e){}
	}
	/**
	Paint gap.
	<br>Default implementation:
		<UL>
		<LI>g.setColor(getViewport().getView().getBackground());
		<LI>g.fillRect(left, top, width, height);
		</UL>
	@param g graphics to paint.
	@param side position of a gap. Possible values:
		<UL>
		0 - top<br>
		1 - left<br>
		2 - bottom<br>
		3 - right
		</UL>
	@param left of rectangle.
	@param top of rectangle.
	@param width of rectangle.
	@param height of rectangle.
	*/
	protected void paintGap(Graphics g, int side, int left, int top, int width, int height)
	{
		if(isOpaque()) try
		{
			g.setColor(getViewport().getView().getBackground());
			g.fillRect(left, top, width, height);
		}catch(Exception ex){}
	}
	/**
	Get the style of the border.
	@return Border style.
	@see #setBorderStyle
	*/
	public int getBorderStyle(){ return m_iBodr; }
	/**
	Set the style of the border. Paint border using the PVBorder class.
	<br><I>Note:</I> To disable BorderStyle and enable Border class,-
	use "setBorderStyle(-1)".
	@param style new border style.  Constants of the PVBorder class
	can be used.<br>
	<I>Examples:</I>
		<OL>
		<LI>Border that resembles the frame of a picture:<br>
		pvPanel1.setBorderStyle(pv.util.PVBorder.PICTURE);
		<LI>The same as above with doubled width:<br>
		pvPanel1.setBorderStyle(pv.util.PVBorder.PICTURE + 0x100);
		<LI>Sunken #3 (standard Windows edit-field):<br>
		pvPanel1.setBorderStyle(pv.util.PVBorder.SUNKEN + 2);
		<LI>Raised #4<br>
		pvPanel1.setBorderStyle(pv.util.PVBorder.RAISED + 3);
		<LI>Advanced style (two symmetric dark lines devided by one light line):<br>
		pvPanel1.setBorderStyle(025200252);
		<LI>Set a border from the Border class:<br>
		pvPanel1.setBorder(new BevelBorder(BevelBorder.RAISED));<br>
		// if BorderStyle was used before, then an additional method is required:<br>
		// pvPanel1.setBorderStyle(-1);
		</OL>
	Default value is set to -1.
	@see #getBorderStyle
	@see #setBorderColor
	@see pv.util.PVBorder
	*/
	public void setBorderStyle(int style){ m_iBodr = style; doLayout(); }
	/**
	Get shadow style.
	@return Shadow style.
	@see #setShadow
	*/
	public int getShadow(){ return m_0 & 7; }
	/**
	Set shadow style.
	@param style shadow style. Possible values:
		<OL>
		0 - no shadow;<br>
		1 - shadow at the right-bottom;<br>
		2 - shadow at the left-bottom;<br>
		3 - shadow at the left-top;<br>
		4 - shadow at the right-top.
		</OL>
	Default value is set to 0 (no shadow).
	@see #getShadow
	@see #setShadowWidth
	@see #setShadowColor
	*/
	public void setShadow(int style){ m_0 = (m_0 & 0xfffffff8) | (style & 7); doLayout(); }
	/**
	Get shadow width.
	@return Shadow width in pixels.
	@see #setShadowWidth
	*/
	public int getShadowWidth(){ return (m_0 >> 3) & 0x1f; }
	/**
	Set shadow width.
	<br><I>Note:</I> To enable shadow,- use "setShadow(1..4)".
	@param w shadow width. Range: 0..31.<br>
	Default value is set to 5.
	@see #getShadowWidth
	@see #setShadow
	*/
	public void setShadowWidth(int w){ m_0 = (m_0 & 0xffffff07) | ((w & 0x1f) << 3); doLayout(); }
	/**
	Get border color when the BorderStyle is used.
	@return  Color.
	@see #setBorderColor
	*/
	public Color getBorderColor(){ return (m_clrB == null) ? getBackground() : m_clrB; }
	/**
	Set border color when the BorderStyle is used.
	<br>The color of the border is not supported when the
	Border class is used.
	@param c border color. If it is null then the
	background color is used.<br>
	Default value is set to null.
	@see #getBorderColor
	@see #setBorderStyle
	@see #setShadowColor
	*/
	public void setBorderColor(Color c){ m_clrB = c; repaint(); }
	/**
	Get shadow color.
	@return Color.
	@see #setShadowColor
	*/
	public Color getShadowColor(){ return (m_clrS == null) ? Color.gray : m_clrS; }
	/**
	Set shadow color.
	@param c color of the shadow. If it is null, then
	the gray color is used.<br>
	Default value is set to the gray color.
	@see #getShadowColor
	@see #setBorderColor
	*/
	public void setShadowColor(Color c){ m_clrS = c; repaint(); }



  public static void main(String[] args) {
    JFrame f=new JFrame("PVPanel Test");
   // f.setLayout(new FlowLayout());
    PVPanel p1=new PVPanel();
    PVPanel p2=new PVPanel();
    PVPanel p3=new PVPanel();
    PVPanel p4=new PVPanel();
    //PVBorder border=new PVBorder();
    //panel.setBorder(new BevelBorder(BevelBorder.RAISED));
    p1.setBounds(1,1,100,100);
    p1.setBorderColor(Color.blue);
    p1.setBorderStyle(PVBorder.SUNKEN2+3);

    p2.setBounds(110,10,100,100);
    //p2.setBorderColor(Color.LIGHT_GRAY);
    //p2.setBorderStyle(PVBorder.PICTURE);
    EtchedBorder bd=new EtchedBorder(EtchedBorder.LOWERED);
    p2.setBorder(bd);

    p3.setBounds(110,110,100,100);
    //p3.setBorderColor(Color.MAGENTA);
    //p3.setBorderStyle(PVBorder.RAISED2+3);
    p3.setBorderStyle(PVBorder.INDENT+3);
    //p3.setBorderStyle(PVBorder.OUTDENT+5);





    f.getContentPane().add(p1);
    f.getContentPane().add(p2);
    f.getContentPane().add(p3);
    f.setSize(300, 300);
    f.addWindowListener(new java.awt.event.WindowAdapter() {
  public void windowClosing(java.awt.event.WindowEvent evt) {
    System.exit(0);
  }
      });
    f.setVisible(true);

  }
}