我發現了關於GWT的CustomScrollPanel以及如何自定義滾動條,但我找不到任何示例或如何設置它。有沒有例子顯示自定義滾動條在使用?GWT CustomScrollPanel示例
回答
這是您將如何自定義本機滾動條,但是您也可以開發自己的滾動條類,實現VerticalScrollbar和HorizontalScrollbar,這些類可以進行更多的自定義。
資源(樣式)的定義:
public class ScrollResourcesContainer {
public interface ScrollPanelResources extends CustomScrollPanel.Resources
{
@Override
@Source({ "ScrollPanel.css", CustomScrollPanel.Style.DEFAULT_CSS })
CustomScrollPanel.Style customScrollPanelStyle();
}
public interface HorizontalResources extends NativeHorizontalScrollbar.Resources
{
@Override
@Source({ "HorizontalScrollbar.css", NativeHorizontalScrollbar.StyleTransparant.DEFAULT_CSS })
NativeHorizontalScrollbar.Style nativeHorizontalScrollbarStyle();
}
public interface VerticalResources extends NativeVerticalScrollbar.Resources
{
@Override
@Source({ "VerticalScrollbar.css", NativeVerticalScrollbar.StyleTransparant.DEFAULT_CSS })
NativeVerticalScrollbar.Style nativeVerticalScrollbarStyle();
}
}
用法通過CustomScrollPanel
:
CustomScrollPanel csp = new CustomScrollPanel((ScrollResourcesContainer.ScrollPanelResources) GWT.create(ScrollResourcesContainer.ScrollPanelResources.class));
csp.setHorizontalScrollbar(new NativeHorizontalScrollbar((HorizontalResources) GWT.create(HorizontalResources.class)),
AbstractNativeScrollbar.getNativeScrollbarHeight());
csp.setVerticalScrollbar(new NativeVerticalScrollbar((VerticalResources) GWT.create(VerticalResources.class)),
AbstractNativeScrollbar.getNativeScrollbarWidth());
要獲得GWT中垂直滾動條的圓滑滾動條,你需要添加下面的VerticalScrollbar代碼。 css。 對於IE而言,這不適用於Gmail,就像Gmail一樣。
/* Turn on a 16x16 scrollbar */
::-webkit-scrollbar {
width: 16px;
height: 16px;
}
/* Turn on single button up on top, and down on bottom */
::-webkit-scrollbar-button:start:decrement,
::-webkit-scrollbar-button:end:increment {
display: block;
}
/* Turn off the down area up on top, and up area on bottom */
::-webkit-scrollbar-button:vertical:start:increment,
::-webkit-scrollbar-button:vertical:end:decrement {
display: none;
}
/* Place The scroll down button at the bottom */
::-webkit-scrollbar-button:end:increment {
background-image: url(images/scroll_cntrl_dwn.png);
}
/* Place The scroll up button at the up */
::-webkit-scrollbar-button:start:decrement {
background-image: url(images/scroll_cntrl_up.png);
}
/* Top area above thumb and below up button */
::-webkit-scrollbar-track-piece:vertical:start {
background-image: url(images/scroll_gutter_top.png), url(images/scroll_gutter_mid.png);
background-repeat: no-repeat, repeat-y;
}
/* Bottom area below thumb and down button */
::-webkit-scrollbar-track-piece:vertical:end {
background-image: url(images/scroll_gutter_btm.png), url(images/scroll_gutter_mid.png);
background-repeat: no-repeat, repeat-y;
background-position: bottom left, 0 0;
}
/* The thumb itself */
::-webkit-scrollbar-thumb:vertical {
height: 56px;
-webkit-border-image: url(images/scroll_thumb.png) 8 0 8 0 stretch stretch;
border-width: 8 0 8 0;
}
同樣你也可以爲水平滾動條做。請查看以下鏈接瞭解更多詳情。 http://almaer.com/blog/creating-custom-scrollbars-with-css-how-css-isnt-great-for-every-task – Saritha
感謝VerticalScrollbar.css,這真的幫了很大忙。你有一個樣本HorizontalScrollbar.css? – MattWeiler
如果有人對垂直/水平的CSS有興趣,這就是我正在使用的。
HorizontalScrollbar.css
/* ***********
* SCROLLBAR *
* ***********/
.nativeHorizontalScrollbar::-webkit-scrollbar
{
width: 10px;
height: 10px;
}
/* *************
* BUTTON AREA *
* *************/
.nativeHorizontalScrollbar::-webkit-scrollbar-button:horizontal
{
background-color: transparent;
}
/* Increment scroll left/right button. */
.nativeHorizontalScrollbar::-webkit-scrollbar-button:start:decrement,
.nativeHorizontalScrollbar::-webkit-scrollbar-button:end:increment
{
display: block;
width: 10px;
height: 8px;
background-repeat: no-repeat;
background-size: 10px 8px;
}
/* Increment scroll left button. */
.nativeHorizontalScrollbar::-webkit-scrollbar-button:start:decrement
{
background-image: url('images/scroll-left.png');
}
/* Increment scroll right button. */
.nativeHorizontalScrollbar::-webkit-scrollbar-button:end:increment
{
background-image: url('images/scroll-right.png');
}
/* Jump left/right buttons. */
.nativeHorizontalScrollbar::-webkit-scrollbar-button:horizontal:start:increment,
.nativeHorizontalScrollbar::-webkit-scrollbar-button:horizontal:end:decrement
{
display: none;
}
/* ******************
* TRACKING SECTION *
* ******************/
.nativeHorizontalScrollbar::-webkit-scrollbar-track:horizontal
{
background-color: transparent;
}
/* Area between the thumb and the left button. */
.nativeHorizontalScrollbar::-webkit-scrollbar-track-piece:horizontal:start
{
}
/* Area between the thumb and and right button. */
.nativeHorizontalScrollbar::-webkit-scrollbar-track-piece:horizontal:end
{
}
/*
* The tracking area.
* This is the area that the thumb travels along.
*/
.nativeHorizontalScrollbar::-webkit-scrollbar-track-piece
{
background-color: rgba(255, 255, 255, 0.1);
}
/* The tracking piece. */
.nativeHorizontalScrollbar::-webkit-scrollbar-thumb:horizontal
{
height: 15px;
background-color: rgba(255, 255, 255, 0.75);
border: none;
-webkit-border-top-left-radius: 6px;
-webkit-border-top-right-radius: 6px;
-webkit-border-bottom-left-radius: 6px;
-webkit-border-bottom-right-radius: 6px;
-moz-border-radius-topleft: 6px;
-moz-border-radius-topright: 6px;
-moz-border-radius-bottomleft: 6px;
-moz-border-radius-bottomright: 6px;
border-top-left-radius: 6px;
border-top-right-radius: 6px;
border-bottom-left-radius: 6px;
border-bottom-right-radius: 6px;
}
/* ********
* CORNER *
* ********/
.nativeHorizontalScrollbar::-webkit-scrollbar-corner:horizontal
{
background-color: transparent;
}
/* *********
* RESIZER *
* *********/
.nativeHorizontalScrollbar::-webkit-scrollbar-resizer:horizontal
{
background-color: transparent;
}
VerticalScrollbar.css /* *********** * * SCROLLBAR * ********* **/
.nativeVerticalScrollbar::-webkit-scrollbar
{
width: 10px;
height: 10px;
}
/* *************
* BUTTON AREA *
* *************/
.nativeVerticalScrollbar::-webkit-scrollbar-button:vertical
{
background-color: transparent;
}
/* Increment scroll up/down buttons. */
.nativeVerticalScrollbar::-webkit-scrollbar-button:start:decrement,
.nativeVerticalScrollbar::-webkit-scrollbar-button:end:increment
{
display: block;
width: 10px;
height: 8px;
background-repeat: no-repeat;
background-size: 10px 8px;
}
/* Increment scroll up button. */
.nativeVerticalScrollbar::-webkit-scrollbar-button:start:decrement
{
background-image: url('images/scroll-up.png');
}
/* Increment scroll down button. */
.nativeVerticalScrollbar::-webkit-scrollbar-button:end:increment
{
background-image: url('images/scroll-down.png');
}
/* Jump up/down buttons. */
.nativeVerticalScrollbar::-webkit-scrollbar-button:vertical:start:increment,
.nativeVerticalScrollbar::-webkit-scrollbar-button:vertical:end:decrement
{
display: none;
}
/* ******************
* TRACKING SECTION *
* ******************/
.nativeVerticalScrollbar::-webkit-scrollbar-track:vertical
{
background-color: transparent;
}
/* Area between the thumb and the up button. */
.nativeVerticalScrollbar::-webkit-scrollbar-track-piece:vertical:start
{
}
/* Area between the thumb and and down button. */
.nativeVerticalScrollbar::-webkit-scrollbar-track-piece:vertical:end
{
}
/*
* The tracking area.
* This is the area that the thumb travels along.
*/
.nativeVerticalScrollbar::-webkit-scrollbar-track-piece
{
background-color: rgba(255, 255, 255, 0.1);
}
/* The tracking piece. */
.nativeVerticalScrollbar::-webkit-scrollbar-thumb:vertical
{
height: 15px;
background-color: rgba(255, 255, 255, 0.75);
border: none;
-webkit-border-top-left-radius: 6px;
-webkit-border-top-right-radius: 6px;
-webkit-border-bottom-left-radius: 6px;
-webkit-border-bottom-right-radius: 6px;
-moz-border-radius-topleft: 6px;
-moz-border-radius-topright: 6px;
-moz-border-radius-bottomleft: 6px;
-moz-border-radius-bottomright: 6px;
border-top-left-radius: 6px;
border-top-right-radius: 6px;
border-bottom-left-radius: 6px;
border-bottom-right-radius: 6px;
}
/* ********
* CORNER *
* ********/
.nativeVerticalScrollbar::-webkit-scrollbar-corner:vertical
{
background-color: transparent;
}
/* *********
* RESIZER *
* *********/
.nativeVerticalScrollbar::-webkit-scrollbar-resizer:vertical
{
background-color: transparent;
}
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css文件是允許自定義的文件嗎?你能否提供一個VerticalScrollbar.css示例? – sworded
是的,但沒有太多可以做,因爲他們使用原生滾動條,如果您想要進行大量自定義操作,您可能需要創建完全自定義的DOM實現。例如,您應該通過解壓縮gwt-user.jar並在AbstractNativeScrollbar.java和NativeVerticalScrollbar.java NativeWindrticalScrollbar.ui.xml和NativeVerticalScrollbarTransparent.css中查找com \ google \ gwt \ user \ client \ ui來查看GWT源代碼。 – LINEMAN78