调整 QMainWindow 大小时，QTableView 不会扩展/减少 [英] QTableView not expanding/reducing when QMainWindow is resized

问题描述

我有一个 QMainWindow.

I have a QMainWindow.

在 QMainWindow 内，我有一个中央小部件.

Inside the QMainWindow, I have a central widget.

对于中央小部件，我有一个 QVBoxLayout.

For the central widget, I have a QVBoxLayout.

对于这个 QVBoxLayout，我添加了 3 个小部件.一个是带有一些标签的小部件，它有一个 QGridLayout.另一个是水平线.

To this QVBoxLayout, I've added 3 widgets. One is a widget with some labels, which has a QGridLayout. The other is a horizontal line.

第三个是QTableView.问题是，当我尝试扩展 QMainWwindow 时，无论我设置(或不设置)什么调整大小策略，TableView 都不会扩展，并且在扩展的 QMainWindow 的其余部分留下了一个难看的空白区域.

The third is a QTableView. The problem is that when I try and expand the QMainWwindow, despite whatever resize policy I set ( or not), the TableView does not expand, and it leaves an ungainly blank area in the rest of the expanded QMainWindow.

谁能告诉我如何在调整窗口大小时使表格扩展/调整大小.

Could anyone tell me how I can make the table expand/resize when the Window is resized.

这是相关的代码.

`

statInfoWidget = new Static_Info(TagN);
QWidget *widget = new QWidget;
setCentralWidget(widget);
QFrame *hor_line = new QFrame();
hor_line->setFrameShape( QFrame::HLine );
QVBoxLayout *layout = new QVBoxLayout();
layout->setMargin(2);

layout->addWidget(statInfoWidget);
layout->addWidget( hor_line );
Table = new QTableView(this);
 temp = Table;
 t = new TableLayout(statInfoWidget);
 Table->setModel(t);
 Table->verticalHeader()->hide();
 Table->horizontalHeader()->hide();
 Table->setShowGrid(false);
 Table->setContextMenuPolicy(Qt::CustomContextMenu);
 //Table->setColumnWidth(2,290);
// Table->setColumnWidth(0,25);
// if(num_version == 1)
//     Table->setColumnWidth(1,0);
// else
//   Table->setColumnWidth(1,43);
// Table->setColumnWidth(3,210);
// Table->setColumnWidth(4,170);
// Table->setColumnWidth(5,50);
 statInfoWidget->setStyleSheet("background: rgb(153,185,193);color:rgb(0,0,0); font-family:Tahoma;font-size:19px; border: 0px outset rgb(255,255,255);gridline-color: #669933;"
                       "selection-background-color: qlineargradient(x1: 0, y1: 0, x2: 0, y2: 1,stop: 0 #486909, stop: 1 white);");
 Table->setStyleSheet("background: rgb(153,185,193);color:rgb(0,0,0); font-family:Tahoma;font-size:15px; font-weight:bold; border: 0px outset rgb(255,255,255);gridline-color: #669933;"
                       "selection-background-color: qlineargradient(x1: 0, y1: 0, x2: 0, y2: 1,stop: 0 transparent, stop: 1 white);");
// layout->addWidget(button1);
 QSizePolicy policy = Table->sizePolicy();
 policy.setVerticalStretch(1); 
 policy.setHorizontalStretch(1); 
 Table->setSizePolicy(policy);
 layout->addWidget(Table);
 widget->setLayout(layout);

`

推荐答案

您可以考虑以下几点:

Table->horizontalHeader()->setResizeMode(QHeaderView::Stretch);

您可能还想调整表中的单个列的大小，这可以通过传递列索引来完成:

You may also want to resize just a single column in your table, this can be done by passing column index:

Table->horizontalHeader()->setResizeMode(columnIndex, QHeaderView::Stretch);

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