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我用QT設計器創建了一個用戶界面。瀏覽目錄使用用戶界面和QTreeWidget與qt
在那個UI中，我使用一個按鈕作爲瀏覽目錄，一個lineedit用於選擇目錄路徑文本以顯示，另一個用於確定的按鈕，這三個小部件和一個treewidget水平放置在groupbox上。
我想知道的是，如果我瀏覽，然後點擊確定按鈕，然後我要顯示在UI樹視圖到該路徑
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();
}
我沒有得到輸出，而我對每一個東西很好，但沒有得到關於treewidget
這是可能的UI輸出，請幫助我，我在哪裏可以修改調試點檢查我碼。
謝謝大家。
這可能幫助：HTTP：//doc.qt。 io/qt-4.8/qt-itemviews-dirview-example.html –
但是我想幹涉ui瀏覽路徑，從那個路徑我想顯示一個treeview，請給我一個簡單的例如，我如何得到這個。 –