sdatabcontrol.java

很好的UI界面源码..还有自己的输入法,可以更换风格.可以学习和使用

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package cn.sda.ui;

import cn.sda.event.KeybordEvent;
import cn.sda.event.PointerEvent;
import cn.sda.event.TabSheetChangeEvent;
import java.util.Vector;
import javax.microedition.lcdui.Graphics;
import javax.microedition.lcdui.Image;
import javax.microedition.lcdui.Font;

/**
 *
 * @author Administrator
 */
public class SDATabControl extends SDABaseControl {

    private byte buttonAlignType = SDAConsts.ktHorizontal;
    private int borderColor = SDAConsts.clBlack;
    //是否显示标题
    private boolean showCaption = true;
    //是否按照标题自动伸缩按钮
    private boolean autoSizeButton = true;
    //组件列表
    private Vector controlList = null;
    //当前位置
    private SDATabSheet curSheet = null;
    //事件
    private TabSheetChangeEvent onChangeEvent = null;
    //背景图
    private Image backImage = null;
    private boolean stretchImage = true;
    //按钮图片排布方式
    private int glyphAlignType = SDAConsts.blGlyphLeft;
    //按钮位置
    private int buttonPosition = SDAConsts.tabButtonsTop;
    //按钮的缺省尺寸
    private int buttonSize = 40;
    //按钮区大小
    private int SelectbuttonSize = 0;
    //偏移
    private int offset = 0;
    //按钮总长度（判断是否显示滚动按钮）
    private int buttonsLen = 0;
    //开始显示的按钮
    private int StartButtonPos = 0;
    //最后完整显示按钮index
    private int endButtonPos = 0;
    //滚动按钮背景色
    private int scrollButtonColor = SDAConsts.clWhite;
    //滚动按钮大小
    private int scrollButtonSize = 14;
    //是否可以继续向后滚动
    private boolean canScroll = false;

    public SDATabControl() {
        super();
        setWidth(120);
        setHeight(100);
        controlList = new Vector();
        setOnKeyUp(new KeybordEvent() {

            public void Event(SDABaseControl ctrl, int keyCode) {
                //键盘
                doKeyUp(keyCode);
            }
        });
        setOnPointerPressed(new PointerEvent() {

            public void Event(SDABaseControl ctrl, int x, int y) {
                //点
                doPointerPress(x, y);
            }
        });
    }

    public void paint() {
        if (!IsCanPaint()) {
            return;
        }
        Graphics g = form.getGraphics();
        SetClip(g);
        g.setFont(getFont());
        int thisWidth = getWidth();
        int thisHeight = getHeight();
        //框
        if (!transparent) {
            g.setColor(backColor);
            fillRect(g, 0, 0, thisWidth, thisHeight);
        }
        //画按钮和分割线
        paintButton(g);
        //画滚动按钮
        paintScrollButton(g);
        //画子组件
        setSheetVisible();
        PaintChilds();
        //焦点
        if (isFoucsed()) {
            g.setColor(SDAConsts.clFocusShadow);
            if (buttonAlignType == SDAConsts.ktHorizontal) {
                if (buttonPosition == SDAConsts.tabButtonsTop) {
                    drawRect(g, 1, SelectbuttonSize + 1, thisWidth - 2, thisHeight - 2 - SelectbuttonSize);
                }
                if (buttonPosition == SDAConsts.tabButtonsBottom) {
                    drawRect(g, 1, 1, thisWidth - 2, offset - 2);
                }
            } else {
                if (buttonPosition == SDAConsts.tabButtonsLeft) {
                    drawRect(g, SelectbuttonSize + 1, 1, thisWidth - 2 - SelectbuttonSize, thisHeight - 2);
                }
                if (buttonPosition == SDAConsts.tabButtonsRight) {
                    drawRect(g, 1, 1, offset - 2, thisHeight - 2);
                }
            }
        }
        SetClip(g);
        g.setColor(borderColor);
        drawRect(g, 0, 0, thisWidth, thisHeight);
        PaintChilds();
    }
    //计算设置按钮的宽度
    private void setButtonSize() {
        SDATabSheet sheet = null;
        int buttonHeight = getHeight() - 4;
        int buttonWidth = getWidth() - 4;
        Font ft = getFont();
        int fontheight = ft.getHeight();
        int num = 0;
        int bsize = 0;
        buttonsLen = 0;
        for (int i = 0; i < controlList.size(); i++) {
            sheet = (SDATabSheet) controlList.elementAt(i);
            if (autoSizeButton) {
                if (buttonAlignType == SDAConsts.ktHorizontal) {
                    if (glyphAlignType == SDAConsts.blGlyphTop || glyphAlignType == SDAConsts.blGlyphBottom) {
                        num = fontheight + 2 + (sheet.getImage() != null ? sheet.getImage().getHeight() + 2 : 0);
                        if (bsize < num) {
                            bsize = num;
                        }
                    } else {
                        num = fontheight + 2;
                        if (sheet.getImage() != null) {
                            if (num < sheet.getImage().getHeight() + 2) {
                                num = sheet.getImage().getHeight() + 2;
                            }
                        }
                        if (bsize < num) {
                            bsize = num;
                        }
                    }
                } else {
                    if (glyphAlignType == SDAConsts.blGlyphLeft || glyphAlignType == SDAConsts.blGlyphRight) {
                        num = ft.stringWidth(sheet.getCaption() + "xx") + (sheet.getImage() != null ? sheet.getImage().getWidth() + 2 : 0);
                        if (bsize < num) {
                            bsize = num;
                        }
                    } else {
                        num = ft.stringWidth(sheet.getCaption() + "xx");
                        if (sheet.getImage() != null) {
                            if (num < sheet.getImage().getWidth() + 2) {
                                num = sheet.getImage().getWidth() + 2;
                            }
                        }
                        if (bsize < num) {
                            bsize = num;
                        }
                    }
                }
            }
        }
        SelectbuttonSize = bsize;
        for (int i = 0; i < controlList.size(); i++) {
            sheet = (SDATabSheet) controlList.elementAt(i);
            if (autoSizeButton) {
                if (buttonAlignType == SDAConsts.ktHorizontal) {
                    sheet.setButtonHeight(bsize);
                    if (sheet.getImage() != null && sheet.getCaption().length() > 0 &&
                            (glyphAlignType == SDAConsts.blGlyphLeft || glyphAlignType == SDAConsts.blGlyphRight)) {
                        sheet.setButtonWidth(ft.stringWidth(sheet.getCaption() + "xx") + sheet.getImage().getWidth());
                    } else {
                        num = ft.stringWidth(sheet.getCaption() + "xx");
                        if (sheet.getImage() != null) {
                            if (num < sheet.getImage().getWidth()) {
                                num = sheet.getImage().getWidth();
                            }
                        }
                        sheet.setButtonWidth(num);
                    }
                    buttonsLen += sheet.getButtonWidth();
                } else {
                    sheet.setButtonWidth(bsize);
                    if (sheet.getImage() != null && sheet.getCaption().length() > 0 &&
                            (glyphAlignType == SDAConsts.blGlyphTop || glyphAlignType == SDAConsts.blGlyphBottom)) {
                        sheet.setButtonHeight(fontheight + 4 + sheet.getImage().getHeight());
                    } else {
                        num = fontheight + 2;
                        if (sheet.getImage() != null) {
                            if (num < sheet.getImage().getHeight() + 2) {
                                num = sheet.getImage().getHeight() + 2;
                            }
                        }
                        sheet.setButtonHeight(num);
                    }
                    buttonsLen += sheet.getButtonHeight();
                }
            } else {
                if (buttonAlignType == SDAConsts.ktHorizontal) {
                    sheet.setButtonHeight(buttonHeight);
                    sheet.setButtonWidth(buttonSize);
                    buttonsLen += sheet.getButtonWidth();
                } else {
                    sheet.setButtonWidth(buttonWidth);
                    sheet.setButtonHeight(buttonSize);
                    buttonsLen += sheet.getButtonHeight();
                }
            }
        }
    }
    //画按钮
    private void paintButton(Graphics g) {
        int thisWidth = getWidth();
        int thisHeight = getHeight();
        Font ft = getFont();
        int fontHeight = ft.getHeight();
        //设置大小
        setButtonSize();
        SetClip(g);
        //画
        int buttonPos = 0;
        if (buttonPosition == SDAConsts.tabButtonsTop) {
            offset = 0;
            buttonAlignType = SDAConsts.ktHorizontal;
        }
        if (buttonPosition == SDAConsts.tabButtonsBottom) {
            offset = getHeight() - SelectbuttonSize;
            buttonAlignType = SDAConsts.ktHorizontal;
        }
        if (buttonPosition == SDAConsts.tabButtonsLeft) {
            offset = 0;
            buttonAlignType = SDAConsts.ktVertical;
        }
        if (buttonPosition == SDAConsts.tabButtonsRight) {
            offset = getWidth() - SelectbuttonSize;
            buttonAlignType = SDAConsts.ktVertical;
        }
        SDATabSheet button = null;
        Image image = null;
        String caption = "";
        //画背景
        if (backImage != null) {
            if (stretchImage) {
                image = SDAImageUtils.processImage(backImage, thisWidth, thisHeight, SDAImageUtils.MODE_STRETCH);
            } else {
                image = backImage;
            }
            drawImage(g, image, 0, 0, 0);
        }
        if (buttonAlignType == SDAConsts.ktHorizontal) {
            //横线
            g.setColor(borderColor);
            int linePos = buttonPosition == SDAConsts.tabButtonsTop ? SelectbuttonSize : offset;
            drawLine(g, 0, linePos, getWidth(), linePos);
            for (int i = StartButtonPos; i < controlList.size(); i++) {
                button = (SDATabSheet) controlList.elementAt(i);
                caption = button.getCaption();
                g.setColor(borderColor);
                drawRect(g, buttonPos, offset, button.getButtonWidth(), button.getButtonHeight());
                //SetClip(g, buttonPos, offset, button.getButtonWidth(), button.getButtonHeight() + 1);
                image = button.getImage();
                //焦点按钮
                if (button.equals(curSheet)) {
                    g.setColor(button.backColor);
                    fillRect(g, buttonPos + 1, offset + (buttonPosition == SDAConsts.tabButtonsTop ? 1 : 0),
                            button.getButtonWidth() - 1, button.getButtonHeight() + (buttonPosition == SDAConsts.tabButtonsTop ? 1 : 0));
                }
                if (image != null) {
                    if (showCaption && caption.length() > 0) {
                        if (glyphAlignType == SDAConsts.blGlyphTop) {
                            drawImage(g, image, buttonPos + (button.getButtonWidth() - image.getWidth()) / 2 + 1,
                                    offset + (button.getButtonHeight() - image.getHeight() - fontHeight) / 2 + 1, 0);
                            g.setColor(foreColor);
                            drawString(g, caption, buttonPos + (button.getButtonWidth() - ft.stringWidth(caption)) / 2 + 1,
                                    offset + (button.getButtonHeight() - image.getHeight() - fontHeight) / 2 + image.getHeight() + 1);