sdabaseedit.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

        return scrollBarColor;
    }

    public void setScrollBarColor(int scrollBarColor) {
        this.scrollBarColor = scrollBarColor;
        repaintControl();
    }

    protected boolean isShowFocusRect() {
        return showFocusRect;
    }

    protected void setShowFocusRect(boolean showFocusRect) {
        this.showFocusRect = showFocusRect;
    }

    private int getHBarWidth() {
        int swidth = 0;
        if ((scrollBars == SDAConsts.srHorizontal) || (scrollBars == SDAConsts.srNone)) {
            swidth = getWidth();
        }
        if ((scrollBars == SDAConsts.srBoth) || (scrollBars == SDAConsts.srVertical)) {
            swidth = getWidth() - barwidth;
        }
        if (!isMultiLine()) {
            swidth = getWidth();
        }
        return swidth;
    }

    private int getVBarHeight() {
        int sheight = 0;
        if ((scrollBars == SDAConsts.srVertical) || (scrollBars == SDAConsts.srNone)) {
            sheight = getHeight();
        }
        if ((scrollBars == SDAConsts.srBoth) || (scrollBars == SDAConsts.srHorizontal)) {
            sheight = getHeight() - barwidth;
        }
        if (!isMultiLine()) {
            sheight = getHeight();
        }
        return sheight;
    }
    //处理事件的执行
    //点箭头滚动内容
    private void doPointerPressed(int x, int y) {
        int posx = screenXToClient(x);
        int posy = screenYToClient(y);
        int thisWidth = getWidth();
        int thisHeight = getHeight();
        int VBarHeight = getVBarHeight();
        int HBarWidth = getHBarWidth();
        //确定点击了滚动条区域
        if (isMultiLine()) {
            if ((scrollBars == SDAConsts.srHorizontal) || (scrollBars == SDAConsts.srBoth)) {
                //判断是否点击了左箭头
                if (InClientRect(posx, posy, 0, thisHeight - barwidth, barwidth, barwidth)) {
                    //向右滚动
                    if (startLeft > 0) {
                        int step = getFont().charWidth('x');
                        startLeft -= step;
                        if (startLeft < 0) {
                            startLeft = 0;
                        }
                    }
                } else //右箭头
                if (InClientRect(posx, posy, HBarWidth - barwidth, thisHeight - barwidth, barwidth, barwidth)) {
                    //向左滚动
                    if (maxLineLenght - startLeft > HBarWidth) {
                        int step = getFont().charWidth('x');
                        startLeft += step;
                    }
                } else //滚动条
                if (InClientRect(posx, posy, HSLeft, HSTop, HSWidth, HSHeight)) {
                    //记录点击的滚动条位置
                    oldScrollPointx = posx;
                    oldScrollPointy = posy;
                    isscrollbarpointdown = true;
                    scrollbardownHV = 0;
                    oldStartLeft = startLeft;
                } else {
                    if (InClientRect(posx, posy, 0, thisHeight - barwidth, HBarWidth, barwidth)) {
                        //点了空白的，滚动到点击的位置
                        //计算滚动块要到位置
                        int tpos = posx > HSLeft ? (posx - HSWidth) : (posx);
                        //计算StartLeft
                        startLeft = ((tpos - barwidth) * (maxLineLenght)) / (HBarWidth - 2 * barwidth);
                    }
                }
            }

            if ((scrollBars == SDAConsts.srVertical) || (scrollBars == SDAConsts.srBoth)) {

                //只有垂直滚动条
                //判断是否点击了上箭头
                if (InClientRect(posx, posy, thisWidth - barwidth, 0, barwidth, barwidth)) {
                    //向下滚动
                    if (startLine > 0) {
                        startLine--;
                    }
                } else //下箭头
                if (InClientRect(posx, posy, thisWidth - barwidth, VBarHeight - barwidth, barwidth, barwidth)) {
                    //向上滚动
                    startLine = ((lineNum - startLine) * getFont().getHeight() > VBarHeight) ? startLine + 1 : startLine;
                } else //滚动条
                if (InClientRect(posx, posy, VSLeft, VSTop, VSWidth, VSHeight)) {
                    //记录位置
                    oldScrollPointx = posx;
                    oldScrollPointy = posy;
                    isscrollbarpointdown = true;
                    scrollbardownHV = 1;
                    oldStartLine = startLine;
                } else {
                    if (InClientRect(posx, posy, thisWidth - barwidth, 0, barwidth, VBarHeight)) {
                        //空白的
                        //计算滚动块要到位置
                        int tpos = posy > VSTop ? (posy - VSHeight) : (posy);
                        //计算StartLine
                        int oldline = startLine;
                        startLine = ((tpos - barwidth) * (lineNum * getFont().getHeight())) / (VBarHeight - 2 * barwidth) / getFont().getHeight();
                        if (oldline == startLine) {
                            startLine = posy > VSTop ? startLine + 1 : startLine - 1;
                        }
                    }
                }
            }
        }
        //点到空白处，计算光标
        if (InClientRect(posx, posy, 0, 0, getHBarWidth(), getVBarHeight())) {
            calCursorFromXY(posx, posy);
            if (form.Application.inputPanel.charsPanel.isVisible()) {
                form.Application.inputPanel.numChars = null;
                form.Application.inputPanel.inputChars.setLength(0);
                form.Application.inputPanel.charsPanel.visible = false;
                form.repaintControl();
            }
        }
    }

    private void calCursorFromXY(int x, int y) {
        cursorRow = startLine + y / getFont().getHeight();
        if (cursorRow + 1 > lineNum) {
            cursorRow = lineNum - 1;
            if (cursorRow < 0) {
                cursorRow = 0;
            }
        }
        paintString(gg, getText(), 2, -100);
        int len = 0;
        int cw = 0;
        Font ft = getFont();
        String textStr = "";
        if (isMultiLine()) {
            textStr = cursorLineText;
        } else {
            textStr = getText();
        }
        if(passwordChar!=0){
            textStr=getPassString(textStr, passwordChar);
        }
        cursorCol = textStr.length();
        for (int i = 0; i < textStr.length(); i++) {
            cw = ft.charWidth(textStr.charAt(i));
            if (len + cw / 2 - startLeft > x) {
                cursorCol = i;
                break;
            }
            if (len + cw - startLeft > x) {
                cursorCol = i + 1;
                break;
            }
            len += ft.charWidth(textStr.charAt(i));
        }
    }
    //拖动事件处理
    private void doPointerReleased(int x, int y) {
        int posx = screenXToClient(x);
        int posy = screenYToClient(y);
        int VBarHeight = getVBarHeight();
        int HBarWidth = getHBarWidth();
        //根据点击的位置,判断滚动的多少
        if ((scrollBars == SDAConsts.srHorizontal) || ((scrollBars == SDAConsts.srBoth) && (scrollbardownHV == 0))) {
            if (isscrollbarpointdown) {
                int stepx = posx - oldScrollPointx;
                //根据滚动多少来重新定位
                //计算滚动块要到位置
                int tpos = HSLeft + stepx;
                HSLeft = tpos < barwidth ? barwidth : tpos;
                HSLeft = HSLeft + HSWidth > HBarWidth - barwidth ? HBarWidth - barwidth - HSWidth : HSLeft;
                //计算StartLeft
                startLeft = ((HSLeft - barwidth) * (maxLineLenght)) / (HBarWidth - 2 * barwidth);
                if (oldStartLeft != startLeft) {
                    oldScrollPointx = posx;
                    oldStartLeft = startLeft;
                } else {
                    oldStartLeft = startLeft;
                    if (stepx > 0) {
                        startLeft = maxLineLenght - startLeft < getHBarWidth() ? startLeft + 1 : startLeft;
                    }
                    if (stepx < 0) {
                        startLeft = startLeft == 0 ? 0 : startLeft - 1;
                    }
                }
            }
        }
        if ((scrollBars == SDAConsts.srVertical) || ((scrollBars == SDAConsts.srBoth) && (scrollbardownHV == 1))) {
            if (isscrollbarpointdown) {
                int stepy = posy - oldScrollPointy;
                //根据滚动多少来重新定位
                //计算滚动块要到位置
                int tpos = VSTop + stepy;
                VSTop = tpos < barwidth ? barwidth : tpos;
                VSTop = VSTop + VSHeight > VBarHeight - barwidth ? VBarHeight - barwidth - VSHeight : VSTop;
                //计算StartLine
                startLine = ((VSTop - barwidth) * (lineNum * getFont().getHeight())) / (VBarHeight - 2 * barwidth) / getFont().getHeight();
                if (oldStartLine == startLine) {
                    if (stepy > 0) {
                        startLine = ((lineNum - startLine) * getFont().getHeight() > getVBarHeight()) ? startLine + 1 : startLine;
                    }
                    if (stepy < 0) {
                        startLine = startLine > 0 ? startLine - 1 : startLine;
                    }
                    oldStartLine = startLine;
                } else {
                    if ((stepy > 0) && (startLine < oldStartLine)) {
                        startLine = oldStartLine;
                    }
                    oldStartLine = startLine;
                }
            }
        }
        isscrollbarpointdown = false;
    }

    protected static byte[] string2Byte(String s) {
        try {
            ByteArrayOutputStream baos = new ByteArrayOutputStream();
            DataOutputStream bos = new DataOutputStream(baos);
            bos.writeUTF(s);
            byte[] bytes = baos.toByteArray();
            byte[] rbytes = new byte[bytes.length - 2];
            System.arraycopy(bytes, 2, rbytes, 0, rbytes.length);
            //关闭流 
            bos.close();
            baos.close();
            return rbytes;
        } catch (Exception e) {
            return null;
        }
    }
    //键盘事件处理
    private void doKeyUp(int keyCode) {
        String key = form.getKeyName(keyCode).toUpperCase();
        char ch = 0;
        if (key.equals(SDAConsts.KEY_UP)) {
            if (form.Application.inputPanel.numChars != null) {
                form.Application.inputPanel.charsPanel.priorChar();
                form.Application.inputPanel.charsPanel.repaintControl();
            } else {
                ch = 38;
                if (form.Application.inputPanel.charsPanel.isVisible()) {
                    form.Application.inputPanel.charsPanel.inputFuncChar(ch);
                } else {
                    inputFuncChar(ch, false);
                }
            }
        }

        if (key.equals(SDAConsts.KEY_DOWN)) {
            if (form.Application.inputPanel.numChars != null) {
                form.Application.inputPanel.charsPanel.nextChar();
                form.Application.inputPanel.charsPanel.repaintControl();
            } else {
                ch = 40;
                if (form.Application.inputPanel.charsPanel.isVisible()) {
                    form.Application.inputPanel.charsPanel.inputFuncChar(ch);
                } else {
                    inputFuncChar(ch, false);
                }
            }
        }
        if (key.equals(SDAConsts.KEY_LEFT)) {
            if (form.Application.inputPanel.numChars != null) {
                form.Application.inputPanel.charsPanel.priorChar();
                form.Application.inputPanel.charsPanel.repaintControl();
            } else {
                ch = 37;
                if (form.Application.inputPanel.charsPanel.isVisible()) {
                    form.Application.inputPanel.charsPanel.inputFuncChar(ch);
                } else {
                    inputFuncChar(ch, false);
                }
            }
        }
        if (key.equals(SDAConsts.KEY_RIGHT)) {
            if (form.Application.inputPanel.numChars != null) {
                form.Application.inputPanel.charsPanel.nextChar();
                form.Application.inputPanel.charsPanel.repaintControl();
            } else {
                ch = 39;
                if (form.Application.inputPanel.charsPanel.isVisible()) {
                    form.Application.inputPanel.charsPanel.inputFuncChar(ch);
                } else {
                    inputFuncChar(ch, false);
                }
            }
        }
        //删除（F2）
        if (key.equals(SDAConsts.KEY_SOFT2) || key.equals(SDAConsts.KEY_CLEAR)) {
            if (form.Application.inputPanel.numChars != null) {
                form.Application.inputPanel.numChars = null;
                if (form.Application.inputPanel.inputChars.length() == 0) {
                    form.Application.inputPanel.charsPanel.visible = false;
                    form.repaintControl();
                }
            } else {
                ch = 8;
                if (form.Application.inputPanel.charsPanel.isVisible()) {
                    form.Application.inputPanel.charsPanel.inputFuncChar(ch);
                } else {
                    inputFuncChar(ch, false);
                }
            }
        }
        //ESC
        if (key.equals(SDAConsts.KEY_SOFT1)) {
            if (form.Application.inputPanel.charsPanel.visible) {
                form.Application.inputPanel.numChars = null;
                form.Application.inputPanel.inputChars.setLength(0);
                form.Application.inputPanel.charsPanel.visible = false;
                form.repaintControl();
            }
        }
        //System.out.println(keyCode);
        if (key.equals(SDAConsts.KEY_SELECT) || key.equals(SDAConsts.KEY_ENTER)) {
            if (form.Application.inputPanel.numChars != null) {
                if (form.Application.inputPanel.ImeType == SDAInputPanel.imPinYin) {
                    ch = form.Application.inputPanel.getKeyChar();
                    form.Application.inputPanel.selectedChar = ch;
                    form.Application.inputPanel.inputPinYinChar();
                    form.Application.inputPanel.charsPanel.repaintControl();
                }
                if (form.Application.inputPanel.ImeType == SDAInputPanel.imLowerCase ||
                        form.Application.inputPanel.ImeType == SDAInputPanel.imUpperCase) {
                    form.Application.inputPanel.selectedChar = 13;
                    form.Application.inputPanel.inputFuncChar();
                }
                form.Application.inputPanel.numChars = null;
            } else {
                ch = 13;
                if (form.Application.inputPanel.charsPanel.isVisible()) {
                    form.Application.inputPanel.charsPanel.inputFuncChar(ch);
                } else {
                    if (!form.Application.hasPointer()) {
                        form.Application.ShowEditor(this);
                    } else {
                        inputFuncChar(ch, false);
                    }
                }
            }

        }
        if ((keyCode > 47 && keyCode < 58) || keyCode == 35 || keyCode == 42) {
            ch = (char) keyCode;
            char[] charArray = null;
            if (form.Application.inputPanel.ImeType == SDAInputPanel.imPinYin) {
                if (form.Application.inputPanel.charsPanel.isInput) {
                    charArray = form.Application.inputPanel.getLowerKeyChars(ch);
                } else {
                    form.Application.inputPanel.charsPanel.isInput = true;