Embedded blog: QT

레이블이 QT인 게시물을 표시합니다. 모든 게시물 표시

2010년 2월 27일 토요일

Fedora12, Qt3 설치하기

OS : Fedora12

VMware : VMware workstation 7.0

Qt : Qt 3.3.3

① Qt-x11 3.3.3 Install

-> 환경 변수 등록.

#!/bin/bash

export QTDIR=/Project/qt3/qtx-3.3.3

export PATH=$QTDIR/bin:$PATH

export MANPATH=$QTDIR/doc/man:$MANPATH

export LD_LIBRARY_PATH=$QTDIR/lib:$LD_LIBRARY_PATH

-> Configure options

: ./configure --prefix=/Project/qt3/qtx-3.3.3 -no-xft

( freetype library 버젼 때문에 설치가 안되는 경우, no-xft 로 anti-aliased font 만 해제시켜주면 된다. )

-> gmake

-> gmake install

② Qt-embedded 3.3.3 Install

-> 환경 변수 등록

#!/bin/bash

export QTDIR=/Project/qt3/qtx-3.3.3

export PATH=$QTDIR/bin:$PATH

export LD_LIBRARY_PATH=$QTDIR:/lib:$LD_LIBRARY_PATH

#export QMAKESPEC=qws/linux-arm-g++

-> QTextedit Problem

- $ QTDIR/src/kernel/qfont.cpp,

1620 줄의 QString::number( pointSizeFloat() ) + comma + 에서,

1620 줄의 QString::number( (int) pointSizeFloat() ) + comma + 로 변경.

-> Qt 3.3.3 Touch device Problem

- QTDIR/src/embedded의 qmouse_qws.cpp

qmouse_qws.h

qmouselinuxtp_qws.cpp

qmouselinuxtp_qws.h 교체.

-> Qt-x11의 bin/의 uic, moc를 Qt-embedded bin/으로 카피.

- Configure options

: ./configure -prefix /Project/qt3/qte-3.3.3 -embedded arm -shared -thread -debug -no-cups -continue -qt-mouse-linuxtp -qt-zlib -qt-gif -qt-libpng -no-libmng -qt-libjpeg

- gmake

- gmake install

2009년 12월 21일 월요일

QT4 with OpenCV, How to convert QImage to IplImage

// QImage* qImage, IplImage* cvImage

cvImage = cvCreateImageHeader(cvSize(qImage->width(), qImage->height()), IPL_DEPTH_8U, 4);

cvImage->imageData = (char*)qImage->bits();

2009년 12월 20일 일요일

QT4 with OpenCV, How to convert IplImage to QImage

void Canvas::setImage(const IplImage *newImage)
{
uchar *qImageBuffer = NULL;

int width = newImage->width;
int widthStep = newImage->widthStep;
int height = newImage->height;
if(width!=old_w||height!=old_h||widthStep!=old_ws) {
imageq = QImage();
}
qImageBuffer = (uchar *) malloc(width*height*4*sizeof(uchar));
uchar *QImagePtr = qImageBuffer;
int linestep;
const uchar *iplImagePtr = (const uchar *) newImage->imageData;
if (newImage->origin==0) {
linestep = widthStep-3*width;
} else { // If image got origin from bottom-left
linestep = (widthStep+(3*width))*-1;
iplImagePtr += widthStep * (height-1);
}
for (int y = 0; y < height; y++) {
for (int x = 0; x < width; x++) {
// We cannot help but copy manually.
QImagePtr[0] = iplImagePtr[0]; // B
QImagePtr[1] = iplImagePtr[1]; // G
QImagePtr[2] = iplImagePtr[2]; // R
QImagePtr[3] = 0xff; // Alpha
QImagePtr += 4;
iplImagePtr += 3;
}
iplImagePtr += linestep;
}
QImage *tempimg;
tempimg = new QImage(qImageBuffer, width, height,QImage::Format_RGB32);
imageq = tempimg->copy(0,0,width,height);
free(qImageBuffer);
}

형 변환

QString 을 C type 형으로 변환

1. char
2. char[]
3. int
4. long

QString aaa;

1. aaa.ascii()[0];
2. aaa.ascii()(;
3. aaa.toInt();
3. aaa.toLong();

int 형을 QString으로 변경 시키는 방법

QString a;
int b = 10;

a = a.setNum(b);

char형을 QString으로 변경 시키는 방법

char szFullPath[100];
strcpy(szFullPath, "world");
QString data;
QString how;

data = "Hello ";
how = data + QString(szFullPath);

Tslib 1.0

▶ Tslib 1.0

▷ tslib-1.0.tar.bz2

Step1. 설정

./configure --prefix=/qt3/tslib --enable-inputapi --enable-shared --disable-h3600 --disable-corgi --disable-collie --enable-input --enable-mk712 --disable-arctic2 --disable-ucb1x00 --build=i386-linux --host=arm-linux CC=arm-linux-gcc

Step2. 소스 수정

- config.h 수정

[ #define malloc rpl_malloc ] 라인 주석 처리

Step3. make & make install

# make

# make install

Step4. 환경변수 설정

export TSDIR=/qt4/tslib-arm

export LD_LIBRARY_PATH=$TSDIR/lib:$LD_LIBRARY_PATH

export TSLIB_TSDEVICE=/dev/mk712

export TSLIB_CONFFILE=/qt4/tslib-arm/etc/ts.conf

export TSLIB_CALIBFILE=/etc/pointercal

export TSLIB_FBDEVICE/dev/fb0

export QWS_MOUSE_PROTO=tslib:$TSLIB_TSDEVICE

export QWS_SIZE=1024x768

QT configure options (EZ-X5)

-> qt/e(3.3.3)

./configure -embedded arm -shared -thread -debug -no-cups -continue -qt-mouse-linuxtp -qt-zlib -qt-gif -qt-libpng -no-libmng -qt-libjpeg

QT FTP site

-> ftp://ftp.trolltech.com/qt/source/