嵌入式 qt开发实例 触摸屏

/******************************************************************
Copyright (C) 2017 - All Rights Reserved by
文 件 名 : photosview.cpp ---
作 者 : Niyh (QQ:393320854)
编写日期 : 2019
说 明 :
历史纪录 :
<作者> <日期> <版本> <内容>
2019/9/8
*******************************************************************/
#include "photosview.h"
#include "skin.h"
#include "imageviewer.h"

#include
#include
#include
#include
#include
#include

PhotosView::PhotosView(QWidget *parent) : QtAnimationWidget(parent)
{
this->SetBackground(QColor("#ffffff"));

m_strDirPath = qApp->applicationDirPath() + "/photos/";
InitWidget();

QTimer::singleShot(500, this, SLOT(SltLoadPhotos()));
}

PhotosView::~PhotosView()
{
}

void PhotosView::InitWidget()
{
QtWidgetTitleBar *widgetTitle= new QtWidgetTitleBar(this);
widgetTitle->setMinimumHeight(60);
widgetTitle->SetBackground(QColor("#f0f0f0"));
widgetTitle->setFont(QFont(Skin::m_strAppFontBold));
widgetTitle->SetTitle("相册", "#333333", 25);

QPushButton *btnHome = new QPushButton(widgetTitle);
btnHome->setFixedSize(54, 54);
connect(btnHome, SIGNAL(clicked(bool)), this, SIGNAL(signalBackHome()));
btnHome->setStyleSheet(QString("QPushButton {border-image: url(:/images/photos/menu_icon.png);}"
"QPushButton:pressed {border-image: url(:/images/photos/menu_icon_pressed.png);}"));

QHBoxLayout *horLayoutTitle = new QHBoxLayout(widgetTitle);
horLayoutTitle->setContentsMargins(9, 0, 10, 0);
horLayoutTitle->setSpacing(18);
horLayoutTitle->addStretch();
horLayoutTitle->addWidget(btnHome);

m_photoListView = new PhotoListView(this);
m_photoListView->SetBackground(QColor("#ffffff"));
connect(m_photoListView, SIGNAL(currentItemClicked(QtPageListWidgetItem*)), this, SLOT(SltCurrentItemClicked(QtPageListWidgetItem*)));

QVBoxLayout *verLayout = new QVBoxLayout(this);
verLayout->setContentsMargins(0, 0, 0, 0);
verLayout->setSpacing(0);
verLayout->addWidget(widgetTitle, 1);
verLayout->addWidget(m_photoListView, 7);
}

void PhotosView::SltLoadPhotos()
{
m_listItems.clear();
QDir dir(m_strDirPath);
dir.setFilter(QDir::Files | QDir::NoSymLinks);
QFileInfoList list = dir.entryInfoList(QStringList() << "*.jpg" << "*.png" << "*.bmp");
for (int i = 0; i < list.size(); ++i) {
QFileInfo fileInfo = list.at(i);
QPixmap pixmap(fileInfo.absoluteFilePath());
if (pixmap.width() > pixmap.height()) {
pixmap = pixmap.scaledToHeight(200);
} else {
pixmap = pixmap.scaledToWidth(200);
}
pixmap = pixmap.copy(0, 0, 200, 200);
m_listItems.insert(i, new QtPageListWidgetItem(i, fileInfo.absoluteFilePath(), pixmap));
}

m_photoListView->SetItems(m_listItems);
}

void PhotosView::SltCurrentItemClicked(QtPageListWidgetItem *item)
{
ImageViewer *imageView = new ImageViewer(this);
imageView->setGeometry(0, 0, this->width(), this->height());
imageView->SetPixmap(item->m_nId, m_listItems);
}