[英]Qt - set QWidget with a QWidget class
I'm learning to use Qt and I want to extend the Terminal Example of Qt. 我正在学习使用Qt,并且想扩展Qt的终端示例。 I want to use its console.cpp in a QWidget from de Containers tab in the Design editor.
我想在设计编辑器的de Containers选项卡中的QWidget中使用其console.cpp。
In the Terminal Example of Qt, this class is used like this: 在Qt的终端示例中,此类的用法如下:
ui->setupUi(this);
console = new Console;
console->setEnabled(false);
setCentralWidget(console);
But as I want to use it in a smaller QWidget I don't know how to set it, which method can I use as equivalent of setCentralWidget for my QWidget? 但是,由于我想在较小的QWidget中使用它,所以我不知道如何设置它,我的QWidget可以使用哪种方法等效于setCentralWidget? Image of the Design tab with the widget I want to set to the QWidget class
我要设置为QWidget类的窗口小部件的“设计”选项卡的图像
Can I also use the same QWidget in several tabs? 我还可以在多个标签中使用相同的QWidget吗?
The console.cpp code is the following one. console.cpp代码如下。
#include "console.h"
#include <QScrollBar>
#include <QtCore/QDebug>
Console::Console(QWidget *parent)
: QPlainTextEdit(parent)
, localEchoEnabled(false)
{
document()->setMaximumBlockCount(100);
QPalette p = palette();
p.setColor(QPalette::Base, Qt::black);
p.setColor(QPalette::Text, Qt::green);
setPalette(p);
}
void Console::putData(const QByteArray &data)
{
insertPlainText(QString(data));
QScrollBar *bar = verticalScrollBar();
bar->setValue(bar->maximum());
}
void Console::setLocalEchoEnabled(bool set)
{
localEchoEnabled = set;
}
void Console::keyPressEvent(QKeyEvent *e)
{
switch (e->key()) {
case Qt::Key_Backspace:
case Qt::Key_Left:
case Qt::Key_Right:
case Qt::Key_Up:
case Qt::Key_Down:
break;
default:
if (localEchoEnabled)
QPlainTextEdit::keyPressEvent(e);
emit getData(e->text().toLocal8Bit());
}
}
void Console::mousePressEvent(QMouseEvent *e)
{
Q_UNUSED(e)
setFocus();
}
void Console::mouseDoubleClickEvent(QMouseEvent *e)
{
Q_UNUSED(e)
}
void Console::contextMenuEvent(QContextMenuEvent *e)
{
Q_UNUSED(e)
}
The Qt Example is this one: http://doc.qt.io/qt-5/qtserialport-terminal-example.html Qt示例就是这样的: http : //doc.qt.io/qt-5/qtserialport-terminal-example.html
Thanks so much! 非常感谢!
If you're wanting to add it via designer just promote the QWidget that you added in your screegrab. 如果您想通过设计器添加它,只需推广您在screegrab中添加的QWidget。 (Right click > "Promote to..." > Fill in name & path to the console header).
(右键单击>“升级为...”>填写控制台标题的名称和路径)。
Or not using promotion, you can add the console to a layout in code : 或不使用升级,您可以使用以下代码将控制台添加到布局:
Console* console = new Console();
ui->your_layout_name_here->addWidget( console );
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