0
我用QT设计器创建了一个用户界面。浏览目录使用用户界面和QTreeWidget与qt
在那个UI中，我使用一个按钮作为浏览目录，一个lineedit用于选择目录路径文本以显示，另一个用于确定的按钮，这三个小部件和一个treewidget水平放置在groupbox上。
我想知道的是，如果我浏览，然后点击确定按钮，然后我要显示在UI树视图到该路径
我test1.h文件包含
#ifndef LINEEDIT_H
#define LINEEDIT_H
#include <QtGui>
#include "ui_line1.h"
#include <stdlib.h>
#include <iostream>
using namespace Ui;
class line : public QMainWindow
{
Q_OBJECT
public:
line(QWidget *parent = 0);
QTreeWidget(parent);
void viewer(QTreeWidgetItem* item,QString filePath);
private:
Ui::lineedit ui;
QDirModel *model;
public slots:
void browse();
void treeview();
void showDirectory(QTreeWidgetItem* item, int /*column*/);
};
#endif // LINEEDIT_H
我TEST1 .cpp文件包含
#include "test1.h"
#include <QTreeWidget>
#include <QtGui>
#include <stdlib.h>
#include <iostream>
#include<QWidget>
#include<QTreeWidgetItem>
line::line(QWidget* parent)
{
ui.setupUi(this);
connect(ui.browse, SIGNAL(clicked()), this,SLOT(browse()));
connect(ui.ok, SIGNAL(clicked()), this,SLOT(treeview()));
connect(this , SIGNAL(itemClicked(QTreeWidgetItem*,int)),this,SLOT(showDirectory(QTreeWidgetItem*,int)));
}
void line::browse()
{
QString dir = QFileDialog::getExistingDirectory(this, tr("Open Directory"),
"/home",QFileDialog::ShowDirsOnly | QFileDialog::DontResolveSymlinks);
ui.lineEdit->setText(dir);
}
void line::treeview()
{
QWidget *centralWidget = new QWidget();
line *tree = new line (centralWidget);
tree->setFixedSize(395,395);
QTreeWidgetItem* headerItem = new QTreeWidgetItem();
headerItem->setText(0,QString("File Name"));
headerItem->setText(1,QString("Size (Bytes)"));
headerItem->setText(2,QString("Path"));
ui.treeWidget->setHeaderItem(headerItem);
ui.treeWidget->setColumnCount(2);
//ui.treeView->
//setHeaderItem(headerItem);
QString strdir=ui.lineEdit->text();
QDir* rootDir = new QDir(strdir);
QFileInfoList filesList = rootDir->entryInfoList();
foreach(QFileInfo fileInfo, filesList)
{
QTreeWidgetItem* item = new QTreeWidgetItem();
item->setText(0,fileInfo.fileName());
if(fileInfo.isFile())
{
item->setText(1,QString::number(fileInfo.size()));
item->setIcon(0,*(new QIcon("file.jpg")));
}
if(fileInfo.isDir())
{
item->setIcon(0,*(new QIcon("folder.jpg")));
viewer(item,fileInfo.filePath());
}
item->setText(2,fileInfo.filePath());
ui.treeWidget->addTopLevelItem(item);
}
QPalette* palette = new QPalette();
palette->setColor(QPalette::Base,Qt::red);
ui.treeWidget->setPalette(*(palette));
/*window->setCentralWidget(centralWidget);*/
/*ui.treeWidget->addTopLevelItem(centralWidget);*/
/*window->show();*/
return treeview();
}
void line::viewer(QTreeWidgetItem* item,QString filePath)
{
QDir* rootDir = new QDir(filePath);
QFileInfoList filesList = rootDir->entryInfoList();
foreach(QFileInfo fileInfo, filesList)
{
QTreeWidgetItem* child = new QTreeWidgetItem();
child->setText(0,fileInfo.fileName());
if(fileInfo.isFile())
{
child->setText(1,QString::number(fileInfo.size()));
}
if(fileInfo.isDir())
{
child->setIcon(0,*(new QIcon("folder.jpg")));
child->setText(2,fileInfo.filePath());
}
item->addChild(child);
}
}
void line::showDirectory(QTreeWidgetItem* item, int)
{
QDir* rootDir = new QDir(item->text(2));
QFileInfoList filesList = rootDir->entryInfoList();
foreach(QFileInfo fileInfo, filesList)
{
QTreeWidgetItem* child = new QTreeWidgetItem();
child->setText(0,fileInfo.fileName());
if(fileInfo.isFile())
{
child->setText(1,QString::number(fileInfo.size()));
child->setIcon(0,*(new QIcon("file.jpg")));
}
if(fileInfo.isDir())
{
child->setIcon(0,*(new QIcon("folder.jpg")));
child->setText(2,fileInfo.filePath());
}
item->addChild(child);
/*resizeColumnToContents(0);*/
}
}
main.cpp中包含
#include "test1.h"
#include <QApplication>
int main(int argc, char *argv[])
{
QApplication a(argc, argv);
line w;
w.show();
return a.exec();
}
我没有得到输出，而我对每一个东西很好，但没有得到关于treewidget
这是可能的UI输出，请帮助我，我在哪里可以修改调试点检查我码。
谢谢大家。
这可能帮助：HTTP：//doc.qt。 io/qt-4.8/qt-itemviews-dirview-example.html –
但是我想干涉ui浏览路径，从那个路径我想显示一个treeview，请给我一个简单的例如，我如何得到这个。 –