splashcanvas.java

anyview手机小说阅览器的开源代码

package com.ismyway.anyview;

import javax.microedition.lcdui.Canvas;
import javax.microedition.lcdui.Graphics;
import javax.microedition.lcdui.Image;
import java.io.*;
import javax.microedition.lcdui.game.Sprite;
import java.util.Vector;

/**
 * <p>Title: AnyView</p>
 *
 * <p>Description: E680(I) Reader</p>
 *
 * <p>Copyright: Copyright (c) 2005</p>
 *
 * <p>Company: www.ismyway.com</p>
 *
 * @author ZhangJian
 * @version 1.0
 */
public class SplashCanvas extends Canvas {
    private Image splashCover = null;
    private Menu menu = null;
    Selector fontSize = null, lineSpace = null, readType = null,
            flipMethod = null, autoFlip = null, openHistory = null;
    ColorSelector colorSelector = null;
    FileSelector openFile = null;
    boolean showMenu = true;
    public final static String[] items = {"历史文件", "打开文件", "字体大小", "文字颜色",
                                         "背景颜色", "行 间 距", "阅读方式", "使用说明",
                                         "退出程序"};
    AbstractWindow currentWindow = null;
    private Vector allBookMarks = new Vector();

    public final static int ANCHOR = Graphics.LEFT | Graphics.TOP;

    private String[] itemFiles = null;
    private String[] realFiles = null;
    Message message = new Message();
    private long startTime = 0; //按键开始的时间
    private boolean deleteHistory = false; //用户是否删除过阅读历史

    public final static String[] itemFonts = {"12*12点阵", "24*16姚体", "16*16点阵",
                                             "16*16点阵(粗)", "18*18点阵", "20*20点阵",
                                             "24*24点阵", "16*16(GBK)",
                                             "16*16(GBK粗)"};
    public final static String[] itemLineSpace = {"0 px", "1 px", "2 px",
                                                 "3 px", "4 px", "5 px", "6 px",
                                                 "7 px", "8 px"};
    public final static String[] itemReadType = {"纵向阅读", "横向阅读"};

    public SplashCanvas() {
        this.setFullScreenMode(true);

        try {
            splashCover = Image.createImage("/res/cover.png");
        } catch (IOException ex) {
        }

        //加载背景图
        /*
                 splashCover = Image.createImage(240, 320);
                 Graphics g = splashCover.getGraphics();
                 g.setColor(0);
                 g.fillRect(0, 0, 240, 320);

         Image temp;

         FileSystemReader fsr = new FileSystemReader(AnyView.Root +
                "anyview/background.png");
                 if (fsr.exists() && !fsr.isDirectory()) {
            try {
                byte[] b = fsr.read((int) fsr.fileSize());
                temp = Image.createImage(b, 0, b.length);
                b = null;
                fsr.close();
            } catch (Exception ex1) {
                temp = null;
            }

            if (null != temp) {
                g.drawImage(temp, 0, 0, ANCHOR);
            }
                 }

                 AnyView.cf.setColor(0);
                 temp = AnyView.cf.buildImage("Anyview 0.2a");
                 g.drawImage(temp, AnyView.ScreenWidth - temp.getWidth() - 2,
                    AnyView.ScreenHeight - temp.getHeight() - 2,
                    ANCHOR);
                 g.drawImage(temp, AnyView.ScreenWidth - temp.getWidth(),
                    AnyView.ScreenHeight - temp.getHeight(),
                    ANCHOR);
                 AnyView.cf.setColor(0xFFFFFF);
                 temp = AnyView.cf.buildImage("Anyview 0.2a");
                 g.drawImage(temp, AnyView.ScreenWidth - temp.getWidth() - 1,
                    AnyView.ScreenHeight - temp.getHeight() - 1,
                    ANCHOR);

                 temp = null;
                 System.gc();*/

        buildHistoryFileList();
        menu = new Menu(items);
    }

    private void buildHistoryFileList() {
        Record r = new Record("avbookmark");
        r.open();
        int num = r.getNumRecords();
        if (num < 1) { //没有任何记录
            r.close();
            return;
        }

        //寻找符合当前文件的书签
        for (int i = 0; i < num; i++) {
            byte[] b = r.getRecord(1 + i); //RecordStore的RecordID总是从1开始
            BookMark ibm = new BookMark();

            if (!ibm.decodeBookMark(b)) {
                continue;
            }
            allBookMarks.addElement(ibm);
        }
        r.close();

        itemFiles = new String[allBookMarks.size()];
        realFiles = new String[allBookMarks.size()];
        int len = allBookMarks.size() - 1;
        //反向显示历史文件列表
        for (int i = len; i > -1; i--) {
            BookMark ibm = (BookMark) allBookMarks.elementAt(i);
            realFiles[len - i] = ibm.getFilename();
            itemFiles[len - i] = realFiles[len - i].substring(realFiles[len - i].
                    lastIndexOf('/') + 1);
        }

    }

    /*public void paint(Graphics g) {
        //g.setColor(0);
        //g.fillRect(0, 0, srcW, srcH);
        if (splashCover != null) {
            g.drawImage(splashCover, 0, 0, ANCHOR);
        }

        if (showMenu) {
            g.drawImage(menu.getWindow(), 0, srcH - menu.getHeight(),
                        ANCHOR);
            if (currentWindow != null) {
                g.drawImage(currentWindow.getWindow(),
                            (srcW - currentWindow.getWidth()) >> 1,
                            (srcH - currentWindow.getHeight()) >> 1, ANCHOR);
            }
        }
        AnyView.debug(g, "" + Runtime.getRuntime().totalMemory(), 10, 10,
                      ANCHOR);
     AnyView.debug(g, "" + Runtime.getRuntime().freeMemory(), 10, 30, ANCHOR);
         }*/

    public void destroy() {
        if (currentWindow != null) {
            currentWindow.destroy();
            currentWindow = null;
        }
        splashCover = null;
        menu = null;
        System.gc();
        //System.out.println("destroy(): " + Runtime.getRuntime().freeMemory());
    }


    // Method to Handle User Inputs
    public void keyPressed(int keyCode) {
        keyCode = mapKey(keyCode);

        if (message.getWindowState() == AbstractWindow.OPENING) {
            message.setWindowState(AbstractWindow.HIDE);
            repaint();
            return;
        }

        if (keyCode == -3) {
            if (currentWindow != null) { //已弹出当前窗口
                if (currentWindow.bof()) {
                    currentWindow.destroy();
                    currentWindow = null;
                    showMenu = true;
                } else {
                    currentWindow.keyLeft();
                }
            }
            repaint();
            return;
        }

        // Right
        if (keyCode == -4) {
            if (currentWindow != null) {
                currentWindow.keyRight();
            }
            repaint();
            return;
        }

        // Up
        if (keyCode == -1) {
            if (currentWindow == null) {
                menu.keyUp();
            } else {
                currentWindow.keyUp();
            }
            repaint();
            return;
        }

        // Down
        if (keyCode == -2) {
            if (currentWindow == null) {
                menu.keyDown();
            } else {
                currentWindow.keyDown();
            }
            repaint();
            return;
        }

        if (keyCode == -5) {
            if (currentWindow == null) { //当前没有打开菜单项窗口
                menu.keyFire();
                if (menu.getSelectedIndex() != 8) {
                    openSubWindow(menu.getSelectedIndex());
                } else {
                    saveRec();
                    destroy();
                    AnyView.av.exit();
                    return;
                }
            } else { //交由当前窗口处理
                currentWindow.keyFire();
                switch (menu.getSelectedIndex()) {
                case 0: //历史文件
                    openHistory(0);
                    break;
                case 1: //打开文件
                    break;
                case 2: //字体大小
                    setFontSize();
                    break;
                case 3: //文字颜色
                    setFontColor();
                    break;
                case 4: //背景颜色
                    setBackColor();
                    break;
                case 5: //行 间 距
                    setLineSpace();
                    break;
                case 6: //阅读方式
                    setReadType();
                    break;
                case 7: //使用说明
                    readme();
                    break;
                }
            }
            repaint();
        }
    }


    public void paint(Graphics g) {
        if (splashCover != null) {
            g.drawImage(splashCover, 0, 0, ANCHOR);
        }

        if (showMenu) { //仅显示菜单
            if (AnyView.readType == 1) { //横屏
                g.drawRegion(menu.getWindow(), 0, 0, menu.getWidth(),
                             menu.getHeight(), Sprite.TRANS_ROT270,
                             menu.getLeft(), menu.getTop() - menu.getWidth(),
                             ANCHOR);
            } else {
                g.drawImage(menu.getWindow(), menu.getLeft(), menu.getTop(),
                            ANCHOR);
            }
        } else { //仅显示子窗口
            if (currentWindow != null) {
                if (AnyView.readType == 1) { //横屏
                    g.drawRegion(currentWindow.getWindow(), 0, 0,
                                 currentWindow.getWidth(),
                                 currentWindow.getHeight(), Sprite.TRANS_ROT270,
                                 currentWindow.getLeft(),
                                 currentWindow.getTop() -
                                 currentWindow.getWidth(),
                                 ANCHOR);

                } else {
                    g.drawImage(currentWindow.getWindow(),
                                currentWindow.getLeft(),
                                currentWindow.getTop(), ANCHOR);
                }
            }
        }

        if (message.getWindowState() == AbstractWindow.OPENING) {
            if (AnyView.readType == 1) { //横屏
                g.drawRegion(message.getWindow(), 0, 0, message.getWidth(),
                             message.getHeight(), Sprite.TRANS_ROT270,
                             message.getLeft(),
                             message.getTop() - message.getWidth(),
                             ANCHOR);
            } else {
                g.drawImage(message.getWindow(), message.getLeft(),
                            message.getTop(), ANCHOR);
            }
        }

        //AnyView.debug(g, AnyView.usedMemory(), 10, 10, ANCHOR);
        //System.gc();
    }

    /*private void drawCanvas() {
        Graphics g = getGraphics();
        if (splashCover != null) {
            g.drawImage(splashCover, 0, 0, ANCHOR);
        }

        if (showMenu) {
            g.drawImage(menu.getWindow(), 0, srcH - menu.getHeight(),
                        ANCHOR);
            if (currentWindow != null) {
                g.drawImage(currentWindow.getWindow(),
                            (srcW - currentWindow.getWidth()) >> 1,
                            (srcH - currentWindow.getHeight()) >> 1, ANCHOR);
            }
        }
        AnyView.debug(g, AnyView.usedMemory(), 10, 10, ANCHOR);
         }*/

// Method to Handle User Inputs
    /*synchronized private void input() {
        int keyStates = getKeyStates();

        // Left
        if ((keyStates & LEFT_PRESSED) != 0) {
            if (showMenu) {
                if (currentWindow != null) {
                    if (currentWindow.bof()) {
                        currentWindow.destroy();
                        currentWindow = null;

                    } else {
                        currentWindow.keyLeft();
                    }
                } else {
                    showMenu = false;
                    menu = null;

                }
            }
        }

        // Right
        if ((keyStates & RIGHT_PRESSED) != 0) {
            if (showMenu) {
                if (currentWindow != null) {
                    currentWindow.keyRight();
                } else {
                    menu.keyRight();
                }
            }
        }

        // Up
        if ((keyStates & UP_PRESSED) != 0) {
            if (showMenu) {
                if (currentWindow == null) {
                    menu.keyUp();
                } else {
                    currentWindow.keyUp();
                }
            }
        }

        // Down
        if ((keyStates & DOWN_PRESSED) != 0) {
            if (showMenu) {
                if (currentWindow == null) {
                    menu.keyDown();
                } else {
                    currentWindow.keyDown();
                }
            }
        }

        // Fire
        if ((keyStates & FIRE_PRESSED) != 0) {