英文:
How to switch between two QGraphicsView inside a QWidget
问题
以下是代码部分的翻译：
我有两个不同的视图需要在一个QWidget窗口内显示。每个视图都有一个单独的QGraphicsScene。
我想要在按钮点击时在这两个视图之间切换。
这是我的当前实现：
void toggleUi(bool type){
QGraphicsView* currentView;
if(bool){
currentView = getFirstView(); // 返回第一类型的QGraphicsView
}
else{
currentView = getSecondView(); // 返回第二类型的QGraphicsView
}
QLayout* layout = widget->layout();
if (layout != 0)
{
QLayoutItem *item;
while ((item = layout->takeAt(0)) != 0)
layout->removeItem (item);
delete layout;
}
QVBoxLayout *layout = new QVBoxLayout(this);
layout->addWidget(currentView);
}
问题：在切换时两个视图重叠显示，即使删除了布局并添加了新布局。没有切换时，两个视图都正常显示。是否有更好/另一种方法来实现它？
英文:
I have two different views to display inside a QWidget window. Each view has a separate QGraphicsScene.
I want to toggle between the two views on button click.
This is my current implementation:
void toggleUi(bool type){
QGraphicsView* currentView;
if(bool){
currentView = getFirstView(); // returns QGraphicsView of first type
}
else{
currentView = getSecondView(); // returns QGraphicsView of second type
}
QLayout* layout = widget->layout ();
if (layout != 0)
{
QLayoutItem *item;
while ((item = layout->takeAt(0)) != 0)
layout->removeItem (item);
delete layout;
}
QVBoxLayout *layout = new QVBoxLayout(this);
layout->addWidget(currentView);
}
Issue: Both views are displayed over one another on toggle, even after deleting the layout and adding a new one.
Both views are rendered fine without toggle.
Is there a better/another way to do it?
答案1
得分: 1
使用 QStackedWidget！使用 addWidget 函数来添加小部件：
QStackedWidget *stackedWidget = new QStackedWidget(this);
stackedWidget->addWidget(getFirstView());
stackedWidget->addWidget(getSecoundView());
QVBoxLayout *layout = new QVBoxLayout(this);
layout->addWidget(stackedWidget);
setLayout(layout);
这是如何在小部件之间切换的方式：
void toggleUi(bool type){
if(condition)
stackedWidget->setCurrentIndex(0)
else
stackedWidget->setCurrentIndex(1)
希望对你有帮助！
英文:
Use QStackedWidget! Use the addWidget function to add widgets:
QStackedWidget *stackedWidget = new QStackedWidget(this);
stackedWidget->addWidget(getFirstView());
stackedWidget->addWidget(getSecoundView());
QVBoxLayout *layout = new QVBoxLayout(this);
layout->addWidget(stackedWidget);
setLayout(layout);
Here's how to switch between the widgets:
void toggleUi(bool type){
if(condition)
stackedWidget->setCurrentindex(0)
else
stackedWidget->setCurrentindex(1)
I hope it helps!
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