在Eclipse中以编程方式调整视图的大小 [英] Programmatically resize a view in Eclipse
问题描述
我正在使用SWTBot测试 non-e4 RCP应用程序,并且需要更改视图的大小。 (移动窗框)
I'm testing an non-e4 RCP application using SWTBot and I need to change the size of my view. (Move the sash-bar)
我尝试失败
- 调整视图大小使用SWTBot(无此类api)
- 使用Eclipse 3 API调整视图大小(不支持)
- 使用基础e4模型调整视图大小(不调整大小)
e4模型接缝是有希望的,但是我错过了一些东西,所以它不起作用。
e4 model seams to be promising, but I'm missing something, so it doesn't work.
我可以
- 获取我的视图的MPart:
view = ePartService .findPart(ID)
- 获取MTrimmedWindow:
window =(以EObject的视图).eContainer为MTrimmedWindow
- Get MPart of my view:
view = ePartService.findPart(ID)
- Get MTrimmedWindow:
window = (view as EObject).eContainer as MTrimmedWindow
我不能
- 语言环境正确的MPartSashContainer
- 使用
setContainerData()
- locale correct MPartSashContainer
- move sash-bar with
setContainerData()
我想知道
- 如何从MPart迁移到其直接父级(例如MPartStack)
- 为什么常见的EObject方法(例如eContainer())不存在于M ...对象?
推荐答案
好,我自己找到了解决方案。
Ok, I found a solution myself.
问题是,该视图不是e4 UI-Tree的一部分。 view.eContainer
直接是 MWindow
。要放置在正确的位置,视图将连接到 MPlaceholder
,它是e4 UI-Tree的一部分,具有 getParent()! = null
。
The thing is, that the view is not a part of the e4 UI-Tree. view.eContainer
is directly the MWindow
. To be placed at the right spot the view is connected to the MPlaceholder
, that is a part of the e4 UI-Tree and has getParent() != null
.
为了调整视图的大小,步骤如下:
In order to resize a view the steps are:
- 显示视图
- 查找视图的
MPlaceholder
- 查找
MPartStack
和`MPartSashContainer´对象 - 设置
containerData
- 重画窗口小部件(是的,在这种情况下无法自动更新接缝)
- Show view
- Find
MPlaceholder
of the view - Find
MPartStack
and `MPartSashContainer´ object - Set
containerData
- Redraw widget (yes, auto-update seam not to work in this case)
示例:
EModelService modelService = PlatformUI.getWorkbench().getService(EModelService.class);
EPartService partService = PlatformUI.getWorkbench().getService(EPartService.class);
// Show view
IWorkbenchPage page = PlatformUI.getWorkbench().getActiveWorkbenchWindow().getActivePage();
page.showView(MyView.ID, null, IWorkbenchPage.VIEW_ACTIVATE);
MPart view = partService.findPart(MyView.ID);
// view.getParent() => null, because 'view' is not a part of the e4 UI-model!
// It is connected to the Model using MPlaceholder
// Let's find the placeholder
MWindow window = (MWindow)(((EObject)eView).eContainer);
MPlaceholder placeholder = modelService.findPlaceholderFor(window, view);
MUIElement element = placeholder;
MPartStack partStack = null;
while (element != null) {
// This may not suite your configuration of views/stacks/sashes
if (element instanceof MPartStack && ((Object)element.parent) instanceof MPartSashContainer) {
partStack = (MPartStack)element;
break;
}
element = element.parent;
}
}
if (partStack == null) { /* handle error */ }
// Now let's change the width weights
for (MUIElement element : partStack.getParent().getChildren()) {
if (element == partStack) {
element.setContainerData("50"); // Width for my view
} else {
element.setContainerData("25"); // Widths for other views & editors
}
}
// Surprisingly I had to redraw tho UI manually
// There is for sure a better way to do it. Here is my (quick & very dirty):
partStack.toBeRendered = false
partStack.toBeRendered = true
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