sdadatetimepicker.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

                    selectLen = hourLen;
                    selectText = String.valueOf(Hour);
                    break;
                case 4:
                    result = yearLen + monthLen + dayLen + hourLen + ft.stringWidth("-- :");
                    selectLen = minuteLen;
                    selectText = String.valueOf(Minute);
                    break;
                case 5:
                    result = yearLen + monthLen + dayLen + hourLen + minuteLen + ft.stringWidth("-- ::");
                    selectLen = secondLen;
                    selectText = String.valueOf(Second);
                    break;
            }
        }
        if (dateKind == SDAConsts.dkTime) {
            switch (selectType) {
                case 3:
                    result = 0;
                    selectLen = hourLen;
                    selectText = String.valueOf(Hour);
                    break;
                case 4:
                    result = hourLen + ft.charWidth(':');
                    selectLen = minuteLen;
                    selectText = String.valueOf(Minute);
                    break;
                case 5:
                    result = hourLen + minuteLen + ft.stringWidth("::");
                    selectLen = secondLen;
                    selectText = String.valueOf(Second);
                    break;
            }
        }
        selectStart = result;
    }

    public void paint() {
        if (IsCanPaint()) {
            internalPaint();
            PaintChilds();
        }
    }

    private void internalPaint() {
        //画
        Graphics g = form.getGraphics();
        g.setFont(getFont());
        SetClip(g);
        //画边框和箭头
        drawControlRect(g);
        //最后打字
        drawControlText(g);
    }

    private void drawControlRect(Graphics g) {
        int thisHeight = getHeight();
        int thisWidth = getWidth();
        g.setColor(backColor);
        fillRect(g, 0, 0, thisWidth, thisHeight);
        g.setColor(borderColor);
        drawRect(g, 0, 0, thisWidth, thisHeight);
        g.setColor(arrowBackColor);
        //两边的框
        fillRect(g, 0, 0, arrowWidth, thisHeight);
        fillRect(g, thisWidth - arrowWidth, 0, arrowWidth, thisHeight);
        g.setColor(borderColor);
        drawRect(g, 0, 0, thisWidth, thisHeight);
        drawRect(g, 0, 0, arrowWidth, thisHeight);
        drawRect(g, thisWidth - arrowWidth, 0, arrowWidth, thisHeight);
        //左箭头
        g.setColor(borderColor);
        fillTriangle(g, arrowWidth / 2 - 2, thisHeight / 2, arrowWidth / 2 + 2, thisHeight / 2 - 4, arrowWidth / 2 + 2, thisHeight / 2 + 4);
        //右箭头
        fillTriangle(g, thisWidth - arrowWidth / 2 - 2, thisHeight / 2 - 4, thisWidth - arrowWidth / 2 - 2, thisHeight / 2 + 4, thisWidth - arrowWidth / 2 + 2, thisHeight / 2);
        //焦点
        if (isFoucsed()) {
            g.setColor(SDAConsts.clFocusShadow);
            drawRect(g, 1, 1, thisWidth - 2, thisHeight - 2);
        }
    }

    private void drawControlText(Graphics g) {
        int thisHeight = getHeight();
        int thisWidth = getWidth();
        SetClip(g, arrowWidth, 1, thisWidth - 2 * arrowWidth, thisHeight - 1);
        g.setColor(foreColor);
        int pos = (thisWidth - getFont().stringWidth(dateTime)) / 2;
        int toppos = (thisHeight - getFont().getHeight()) / 2;
        drawString(g, dateTime, pos, toppos);
        if (canEdit) {
            //显示编辑框
            NumEdit.left = pos + selectStart - 2;
            NumEdit.top = 0;
            NumEdit.width = selectLen + 6;
            NumEdit.height = height;
            NumEdit.text = selectText;
            if (selectType > -1 && NumEdit.visible) {
                NumEdit.paint();
            }
        } else {
            //画选择焦点
            if (selectType > -1) {
                setSelectTypePos(selectType);
                g.setColor(selectedBackColor);
                fillRect(g, pos + selectStart, toppos, selectLen, getFont().getHeight());
                //内容
                g.setColor(selectedFontColor);
                drawString(g, selectText, pos + selectStart, toppos);
            }
        }
    }

    private void doKeyUp(int keyCode) {
        String key = form.getKeyName(keyCode).toUpperCase();
        if (key.equals(SDAConsts.KEY_UP)) {
            //左
            if (dateKind != SDAConsts.dkTime) {
                if (selectType > 0) {
                    selectType--;
                }
            } else {
                if (selectType > 3) {
                    selectType--;
                }
            }
            if (canEdit) {
                NumEdit.visible = true;
            }
        }
        if (key.equals(SDAConsts.KEY_LEFT)) {
            setSelectValue(-1, true);
        }
        if (key.equals(SDAConsts.KEY_DOWN)) {
            if (canEdit) {
                if (!NumEdit.visible) {
                    NumEdit.visible = true;
                    return;
                }
            }
            //右
            if (dateKind != SDAConsts.dkDate) {
                if (selectType < 5) {
                    selectType++;
                }
            } else {
                if (selectType < 2) {
                    selectType++;
                }
            }
        }
        if (key.equals(SDAConsts.KEY_RIGHT)) {
            setSelectValue(1, true);
        }
        repaintControl();
        /*
        if (key.equals(SDAConsts.KEY_SELECT)) {
        this.popVisible = !popVisible;
        }
         */
        setSelectTypePos(selectType);
    }

    private void doPointerPress(int x, int y) {
        int posx = screenXToClient(x);
        int posy = screenYToClient(y);
        int thisHeight = getHeight();
        int thisWidth = getWidth();
        if (InClientRect(posx, posy, 0, 0, thisWidth, thisHeight)) {
            if (InClientRect(posx, posy, 0, 0, arrowWidth, thisHeight)) {
                setSelectValue(-1, true);
            } else if (InClientRect(posx, posy, thisWidth - arrowWidth, 0, arrowWidth, thisHeight)) {
                setSelectValue(1, true);
            }
            getSelectTypeByPos(posx);
        }
    }
    //根据位置获取选择
    private void getSelectTypeByPos(int x) {
        int oldType = selectType;
        boolean find = false;
        if (x > arrowWidth && x < getWidth() - arrowWidth) {
            int pos = (getWidth() - getFont().stringWidth(dateTime)) / 2;
            if (dateKind == SDAConsts.dkDate) {
                for (int i = 0; i < 3; i++) {
                    setSelectTypePos(i);
                    if (pos + selectStart < x && (pos + selectStart + selectLen > x)) {
                        selectType = i;
                        find = true;
                        break;
                    }
                }
            }
            if (dateKind == SDAConsts.dkDateTime) {
                for (int i = 0; i < 6; i++) {
                    setSelectTypePos(i);
                    if (pos + selectStart < x && (pos + selectStart + selectLen > x)) {
                        selectType = i;
                        find = true;
                        break;
                    }
                }
            }
            if (dateKind == SDAConsts.dkTime) {
                for (int i = 3; i < 6; i++) {
                    setSelectTypePos(i);
                    if (pos + selectStart < x && (pos + selectStart + selectLen > x)) {
                        selectType = i;
                        find = true;
                        break;
                    }
                }
            }
        }
        if (!find) {
            selectType = oldType;
        }
    }
    //对选择的内容增加和减少
    private void setSelectValue(int value, boolean incValue) {
        try {
            switch (selectType) {
                case 0:
                    if (incValue) {
                        Year += value;
                    } else {
                        Year = value;
                    }
                    cl.set(Calendar.YEAR, Year);
                    setDateTime();
                    break;
                case 1:
                    if (incValue) {
                        Month += value;
                    } else {
                        Month = value;
                    }
                    cl.set(Calendar.MONTH, Month - 1);
                    setDateTime();
                    break;
                case 2:
                    if (incValue) {
                        Day += value;
                    } else {
                        Day = value;
                    }
                    cl.set(Calendar.DAY_OF_MONTH, Day);
                    setDateTime();
                    break;
                case 3:
                    if (incValue) {
                        Hour += value;
                    } else {
                        Hour = value;
                    }
                    cl.set(Calendar.HOUR_OF_DAY, Hour);
                    setDateTime();
                    break;
                case 4:
                    if (incValue) {
                        Minute += value;
                    } else {
                        Minute = value;
                    }
                    cl.set(Calendar.MINUTE, Minute);
                    setDateTime();
                    break;
                case 5:
                    if (incValue) {
                        Second += value;
                    } else {
                        Second = value;
                    }
                    cl.set(Calendar.SECOND, Second);
                    setDateTime();
                    break;
            }
        } catch (Exception e) {
        }
    }

    protected boolean canDownTabNext() {
        boolean result = false;
        if (dateKind == SDAConsts.dkDate) {
            if (selectType == 2) {
                result = true;
            } else {
                result = false;
            }
        }
        if (dateKind == SDAConsts.dkDateTime || dateKind == SDAConsts.dkTime) {
            if (selectType == 5) {
                result = true;
            } else {
                result = false;
            }
        }
        return result;
    }

    protected boolean canLeftTabPrior() {
        return false;
    }

    protected boolean canRightTabNext() {
        return false;
    }

    protected boolean canUpTabPrior() {
        boolean result = false;
        if (dateKind == SDAConsts.dkDate || dateKind == SDAConsts.dkDateTime) {
            if (selectType == 0) {
                result = true;
            } else {
                result = false;
            }
        }
        if (dateKind == SDAConsts.dkTime) {
            if (selectType == 3) {
                result = true;
            } else {
                result = false;
            }
        }
        return result;
    }

    public boolean isCanEdit() {
        return canEdit;
    }

    public void setCanEdit(boolean canEdit) {
        this.canEdit = canEdit;
        if (canEdit) {
            NumEdit.visible=true;
            NumEdit.tabStop=true;
        } else {
            NumEdit.visible=false;
            NumEdit.tabStop=false;
        }
    }
}