Qt3 Gossip: QIconView 類別

• iconview.h

#ifndef ICON_VIEW
#define ICON_VIEW

#include <qiconview.h>
#include <qpixmap.h>
#include <qdir.h>

class QFileInfo;
class QDir;

class IconView : public QIconView {
    Q_OBJECT

public:
    IconView();

protected:
    QPixmap folder, file;
    QDir d; // 記錄目前路徑
    void dirlist();  // 查詢目錄下的檔案

protected slots:
    void itemSelected(QIconViewItem*);

};

#endif 

• iconview.cpp

#include "iconview.h"
#include <qfileinfo.h>

IconView::IconView()
        : folder("folder.xpm"), file("file.xpm") {

    setCaption("QIconView");
    setSelectionMode(QIconView::Extended);  // 選取的模式與顯示方式
    setResizeMode(QIconView::Adjust);  // 自動調整圖示分佈
    setGridX(75); // 每個ICON的水平間隔為75pixel
    setWordWrapIconText(false);
    setShowToolTips(true);
    setHScrollBarMode(QIconView::Auto); // 自動顯示捲軸
    setVScrollBarMode(QIconView::Auto);
    setSorting(true);

    d.setPath("/home/");
    d.setFilter(QDir::Files | QDir::Dirs | QDir::NoSymLinks);
    d.setSorting(QDir::DirsFirst | QDir::Name);   

    dirlist();
   
    connect(this, SIGNAL(doubleClicked(QIconViewItem*)),
            this, SLOT(itemSelected(QIconViewItem*)));
}

void IconView::dirlist() {
    const QFileInfoList *list = d.entryInfoList();
    QFileInfoListIterator it(*list);
    QFileInfo *fi;

    while((fi = it.current()) != 0) {
        if(fi->isDir())
            new QIconViewItem(this, fi->fileName().latin1(), folder);
        else
            new QIconViewItem(this, fi->fileName().latin1(), file);
        ++it;
    }     
}

void IconView::itemSelected(QIconViewItem* item) {
    QFileInfo fi(d.absPath() + "/" + item->text().latin1());

    if(fi.isDir() && fi.fileName() != ".") {
        d.setPath(fi.absFilePath());
        QIconViewItem *i, *next;

        // 移除所有的QIconViewItem
        do {
            i = firstItem();
            next = i->nextItem();
            delete i;
        } while(next);

        dirlist();
    }
} 

•  main.cpp

#include "iconview.h"
#include <qapplication.h>

int main(int argc, char **argv) {
    QApplication app(argc, argv);

    IconView *iv = new IconView();
    app.setMainWidget(iv);
    iv->show();

    return app.exec();
}