QT学习记录3

今日将tslib1.4编译进qt

编译选项

./configure -release -shared -fast -no-largefile -qt-sql-sqlite -no-qt3support -no-xmlpatterns -no-mmx -no-3dnow -no-sse -no-sse2 -no-svg -no-webkit -qt-zlib -qt-libtiff -qt-libpng -qt-libmng -qt-libjpeg -make libs -xplatform qws/linux-arm-gnueabi-g++ -nomake tools -nomake examples -nomake docs -nomake demo -no-nis -no-cups -no-iconv -no-dbus -no-openssl -embedded arm -little-endian -qt-freetype -depths 16,18,24   -no-glib -prefix /usr/local/qtarm_516_withts -silent -lrt -qt-mouse-tslib -I/usr/local/tslib-1.4/include -L/usr/local/tslib-1.4/lib

增加了-qt-mouse-tslib -I/usr/local/tslib-1.4/include -L/usr/local/tslib-1.4/lib

使用QtSdk重新编译项目，出现

libQtGui.so: undefined reference to `ts_read_raw'

libQtGui.so: undefined reference to `ts_open'

libQtGui.so: undefined reference to `ts_fd'

libQtGui.so: undefined reference to `ts_config'

。。。

此错误需要修改Qt源码安装包qt-everywhere-source-4.7.3中mkspecs/common/linux.conf文件，将QMAKE_LIBS_THREAD选项改为 QMAKE_LIBS_THREAD=-lphtread -lts

重新编译完成之后，项目的构建配置（qt4.7.3(qtarm_516_withts))的环境变量LD_LIBRARY_PATH=$LD_LIBRARY_PATH:/usr/local/tslib-1.4

2.

可执行文件执行时，继续报错

No raw modules loaded.
QWSTslibMouseHandlerPrivate: ts_config() failed with error: 'No such file or directory'
Please check your tslib installation!

此错误修改/etc/ts.conf  增加module_raw input

 

至此为止开发环境基本搭建完成

3.

数据库操作，需要在工程的pro文件中 增加 QT += sql 一行

4.

NULL到对象如何转换？？

5.

Q_OBJECT

The Q_OBJECT macro at the beginning of the class definition is necessary for all classes that define signals or slots