sdalistview.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

    }
    //画项目
    private void paintItems(Graphics g) {
        getMaxInfo();
        setColRow();
        SetClip(g, 2, 2, getHBarWidth() - 2, getVBarHeight() - 4);
        //单个大小
        int itemWidth = maxLenght / colCount;
        int itemHeight = rowHeight;
        int itemLeft = 0;
        int itemTop = 0;
        Image image = null;
        int imageLeft = 0;
        int imageTop = 0;
        Font ft = getFont();
        int fontHeight = showItemText ? getFont().getHeight() : 0;
        SDAListViewItem item = null;
        for (int i = 0; i < itemList.size(); i++) {
            item = (SDAListViewItem) itemList.elementAt(i);
            if (item.getImage() != null) {
                if (item.equals(curItem)) {
                    image = item.getSelectedImage() != null ? item.getSelectedImage() : item.getImage();
                    itemLeft = item.getCol() * itemWidth;
                    itemTop = item.getRow() * itemHeight;
                    imageLeft = (itemWidth - image.getWidth()) / 2 + itemLeft - startLeft;
                    imageTop = (itemHeight - image.getHeight() - fontHeight) / 2 + itemTop - startTop;
                    drawImage(g, image, imageLeft, imageTop, 0);
                    if (showItemText) {
                        g.setColor(itemFocusedFontColor);
                        drawString(g, item.getItemString(),
                                (itemWidth - ft.stringWidth(item.getItemString())) / 2 + itemLeft - startLeft,
                                imageTop + image.getHeight() + 2);
                    }
                    if (showItemRect) {
                        g.setColor(itemFocusedRectColor);
                        drawRect(g, item.getCol() * itemWidth - startLeft, item.getRow() * rowHeight - startTop, itemWidth, itemHeight);
                    }
                } else {
                    image = item.getImage();
                    itemLeft = item.getCol() * itemWidth;
                    itemTop = item.getRow() * itemHeight;
                    imageLeft = (itemWidth - image.getWidth()) / 2 + itemLeft - startLeft;
                    imageTop = (itemHeight - image.getHeight() - fontHeight) / 2 + itemTop - startTop;
                    drawImage(g, image, imageLeft, imageTop, 0);
                    if (showItemText) {
                        g.setColor(foreColor);
                        drawString(g, item.getItemString(),
                                (itemWidth - ft.stringWidth(item.getItemString())) / 2 + itemLeft - startLeft,
                                imageTop + image.getHeight() + 2);
                    }
                }
            } else {
                if (item.equals(curItem)) {
                    itemLeft = item.getCol() * itemWidth;
                    itemTop = item.getRow() * itemHeight;
                    if (showItemText) {
                        g.setColor(itemFocusedFontColor);
                        drawString(g, item.getItemString(),
                                (itemWidth - ft.stringWidth(item.getItemString())) / 2 + itemLeft - startLeft, itemTop + (itemHeight - ft.getHeight()) / 2);
                    }
                    if (showItemRect) {
                        g.setColor(itemFocusedRectColor);
                        drawRect(g, item.getCol() * itemWidth - startLeft, item.getRow() * rowHeight - startTop, itemWidth, itemHeight);
                    }
                } else {
                    itemLeft = item.getCol() * itemWidth;
                    itemTop = item.getRow() * itemHeight;
                    if (showItemText) {
                        g.setColor(foreColor);
                        drawString(g, item.getItemString(),
                                (itemWidth - ft.stringWidth(item.getItemString())) / 2 + itemLeft - startLeft, itemTop + (itemHeight - ft.getHeight()) / 2);
                    }
                }
            }
        }
    }
    //获取最大长度和高度
    private void getMaxInfo() {
        //根据滚动条类型来自动安排
        int rowCount = 1;
        if (itemList.size() > 0) {
            rowCount = itemList.size() % colCount > 0 ? (itemList.size() / colCount + 1) : (itemList.size() / colCount);
        }
        if (!autoRowHeight) {
            if (rowCount * rowHeight > getVBarHeight()) {
                scrollBars = SDAConsts.srVertical;
            } else {
                scrollBars = SDAConsts.srNone;
            }
        } else {
            scrollBars = SDAConsts.srNone;
            rowHeight = getVBarHeight() / rowCount;
        }
        if (scrollBars == SDAConsts.srVertical) {
            maxLenght = getHBarWidth();
            maxHeight = rowCount * rowHeight;
        }
        if (scrollBars == SDAConsts.srNone) {
            maxLenght = getHBarWidth();
            maxHeight = getVBarHeight();
        }
    }

    //设置行列属性
    private void setColRow() {
        SDAListViewItem item = null;
        int id = 0;
        maxCol = 0;
        maxRow = 0;
        for (int i = 0; i < itemList.size(); i++) {
            item = (SDAListViewItem) itemList.elementAt(i);
            id = (i + 1) % colCount == 0 ? colCount - 1 : (i + 1) % colCount - 1;
            if (maxCol < id) {
                maxCol = id;
            }
            item.setCol(id);
            id = i / colCount;
            if (maxRow < id) {
                maxRow = id;
            }
            item.setRow(id);
        }
    }
    //处理项目
    public SDAListViewItem addItem() {
        SDAListViewItem item = new SDAListViewItem();
        itemList.addElement(item);
        repaintControl();
        return item;
    }

    public SDAListViewItem addItem(String itemString) {
        SDAListViewItem item = new SDAListViewItem();
        item.setItemString(itemString);
        itemList.addElement(item);
        repaintControl();
        return item;
    }

    public int getItemCount() {
        return itemList.size();
    }

    public SDAListViewItem addItem(String itemString, Image image, Image selectedImage) {
        SDAListViewItem item = new SDAListViewItem();
        item.setItemString(itemString);
        item.setImage(image);
        item.setSelectedImage(selectedImage);
        itemList.addElement(item);
        repaintControl();
        return item;
    }

    public void addItem(SDAListViewItem item) {
        if (!itemList.contains(item)) {
            itemList.addElement(item);
            repaintControl();
        }
    }

    public void removeItem(SDAListViewItem item) {
        if (itemList.contains(item)) {
            itemList.removeElement(item);
            repaintControl();
        }
    }

    public void removeItem(int itemIndex) {
        if (itemIndex > -1 && itemIndex < itemList.size()) {
            itemList.removeElementAt(itemIndex);
            repaintControl();
        }
    }

    public int getBorderStyle() {
        return borderStyle;
    }

    public void setBorderStyle(int borderStyle) {
        this.borderStyle = borderStyle;
        internalPaint();
    }

    public int getScrollBarWidth() {
        return barwidth;
    }

    public void setScrollBarWidth(int barwidth) {
        this.barwidth = barwidth;
        internalPaint();
    }

    public int getBorderColor() {
        return borderColor;
    }

    public void setBorderColor(int borderColor) {
        this.borderColor = borderColor;
        internalPaint();
    }

    public int getScrollBarColor() {
        return scrollBarColor;
    }

    public int getColCount() {
        return colCount;
    }

    public void setColCount(int colCount) {
        this.colCount = colCount;
    }

    public int getRowHeight() {
        return rowHeight;
    }

    public void setRowHeight(int rowHeight) {
        this.rowHeight = rowHeight;
    }

    public int getItemSelectedColor() {
        return itemFocusedRectColor;
    }

    public void setItemSelectedColor(int itemSelectedColor) {
        this.itemFocusedRectColor = itemSelectedColor;
    }

    public SDAListViewItem getCurItem() {
        return curItem;
    }

    public int getItemIndex() {
        if (curItem == null) {
            return -1;
        } else {
            return itemList.indexOf(curItem);
        }
    }

    public void setItemIndex(int itemIndex) {
        if (itemIndex > -1 && itemIndex < itemList.size()) {
            curItem = (SDAListViewItem) itemList.elementAt(itemIndex);
        } else {
            curItem = null;
        }
    }

    public boolean isAutoRowHeight() {
        return autoRowHeight;
    }

    public void setAutoRowHeight(boolean autoRowHeight) {
        this.autoRowHeight = autoRowHeight;
    }

    public boolean isShowItemText() {
        return showItemText;
    }

    public void setShowItemText(boolean showItemText) {
        this.showItemText = showItemText;
    }

    public int getItemFocusedColor() {
        return itemFocusedRectColor;
    }

    public void setItemFocusedColor(int itemFocusedColor) {
        this.itemFocusedRectColor = itemFocusedColor;
    }

    public int getItemFocusedFontColor() {
        return itemFocusedFontColor;
    }

    public void setItemFocusedFontColor(int itemFocusedFontColor) {
        this.itemFocusedFontColor = itemFocusedFontColor;
    }

    public boolean isShowItemRect() {
        return showItemRect;
    }

    public void setShowItemRect(boolean showItemRect) {
        this.showItemRect = showItemRect;
    }

    private int getHBarWidth() {