宿主机平台:Ubuntu 12.04.4 LTS
目标机:Easy-ARM IMX283
目标机内核:Linux 2.6.35.3
QT版本:Qt-4.7.3
Tslib版本:tslib-1.0.0
整个测试均放在上节制作的文件系统,通NFS根文件系统来进行测试
编译与安装
./autogen.sh
./configure --prefix=$(pwd)/install --host=arm-linux ac_cv_func_malloc_0_nonnull=yes CC=arm-none-linux-gnueabi-gcc
make
make install
将安装文件拷贝到 /home/vmuser/workspace/vm_tools/tslib
修改 tslib/etc/ts.conf
编译与安装
./configure -prefix /home/vmuser/workspace/vm_tools/qt-4.7.3-arm -opensource -confirm-license -release -shared -embedded arm -xplatform qws/linux-arm-gnueabi-g++ -depths 16,18,24,32 -fast -lrt -little-endian -optimized-qmake -pch -qt-sql-sqlite -qt-zlib -qt-libjpeg -qt-libpng -qt-freetype -no-largefile -no-accessibility -no-qt3support -no-webkit -no-mmx -no-3dnow -no-sse -no-sse2 -no-glib -no-libtiff -no-libmng -no-openssl -nomake examples -nomake docs -nomake demos -no-separate-debug-info -no-qvfb -no-cups -no-gtkstyle -no-xrender -no-glib -qt-mouse-pc -qt-mouse-linuxtp -qt-mouse-tslib -qt-mouse-linuxinput -qt-kbd-linuxinput -qt-gfx-linuxfb -qt-gfx-transformed -D QT_QWS_CLIENTBLIT -I /home/vmuser/workspace/vm_tools/tslib/include -L /home/vmuser/workspace/vm_tools/tslib/lib
修改 qt-everywhere-opensource-src-4.7.3/mkspecs/qws/linux-arm-gnueabi-g++/qmake.conf 文件
然后 编译、安装
make
make install
添加 qmake-arm 变量别名,便于以后编译程序移植
vi ~/.bashrc
文件末尾添加:
alias qmake-arm=/home/vmuser/workspace/vm_tools/qt-4.7.3-arm/bin/qmake
1. 拷贝库文件到文件系统
/home/vmuser/workspace/vm_tools/tslib
/home/vmuser/workspace/vm_tools/qt-4.7.3-arm
到 /home/vmuser/workspace/myrootfs/usr/local
2. 修改启动初始化脚本,配置 qt 运行环境
修改 myrootfs/etc/profile
export TSLIB_ROOT=/usr/local/tslib
export TSLIB_TSDEVICE=/dev/input/event0
export TSLIB_CALIBFILE=/etc/pointercal
export TSLIB_CONFFILE=$TSLIB_ROOT/etc/ts.conf
export TSLIB_PLUGINDIR=$TSLIB_ROOT/lib/ts
export TSLIB_FBDEVICE=/dev/fb0
export QWS_MOUSE_PROTO=tslib:/dev/input/event0
export LD_LIBRARY_PATH=$LD_LIBRARY_PATH:$TSLIB_ROOT/lib
export QTDIR=/usr/local/qt-4.7.3
export LD_LIBRARY_PATH=$QTDIR/lib:$QTDIR/plugins/imageformats:$LD_LIBRARY_PATH
export QT_PLUGIN_PATH=$QTDIR/plugins
export QT_QWS_FONTDIR=$QTDIR/lib/fonts
要同时支持鼠标时添加
export QWS_MOUSE_PROTO="tslib:/dev/input/event0 MouseMan:/dev/input/mouse0"
新建 home 文件夹,将QT交叉编译后的程序拷贝到 home
进入uboot 设置NFS启动参数
setenv bootargs 'root=/dev/nfs rw console=ttyAM0,115200n8 nfsroot=192.168.1.123:/home/vmuser/workspace/myrootfs ip=192.168.1.124:192.168.1.123:192.168.1.254:255.255.255.0:epc.zlgmcu.com:eth0:off mem=64M'
saveenv
然后 reset 开机从 myrootfs 启动
ui 界面设置如下,使用水平、垂直布局工具对齐
showpic.cpp代码如下:
#include "showpic.h"
#include "ui_showpic.h"
showpic::showpic(QWidget *parent) :
QWidget(parent),
ui(new Ui::showpic)
{
ui->setupUi(this);
QPixmap pix = QPixmap("/home/picture/bk1.jpg");
pix.scaledToHeight(200);
pix.scaledToWidth(300);
ui->labelPic->setPixmap(pix);
ui->label->setText("123456");
}
showpic::~showpic()
{
delete ui;
}
void showpic::on_pBtnShow_clicked()
{
QPixmap pix = QPixmap("/home/picture/bk1.jpg");
pix.scaledToHeight(200);
pix.scaledToWidth(300);
ui->labelPic->setPixmap(pix);
ui->label->setText("123456");
}
void showpic::on_pBtnHide_clicked()
{
ui->labelPic->clear();
ui->label->setText("hello,world…");
}
main.cpp
#include
#include "showpic.h"
#include
#include
#include "ui_showpic.h" //ui头文件
//using namespace Ui;
int main(int argc, char *argv[])
{
QApplication a(argc, argv);
QTextCodec::setCodecForCStrings(QTextCodec::codecForName("UTF-8"));
showpic \*window = new showpic;
// window->resize(pix.height(), pix.width());
window->setWindowTitle("图片");
window->show();
// window->showFullScreen(); //全屏显示
return a.exec();
}
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