80 lines
1.8 KiB
C++
80 lines
1.8 KiB
C++
#include "plotbitmap.h"
|
|
|
|
PlotBitmap::PlotBitmap(QObject *parent) : QObject(parent)
|
|
{
|
|
|
|
}
|
|
|
|
//QBitmap PlotBitmap::Create1BPPBitmap(int bTransparent, int crBkColor, int iWidth, int iHeight, int iStride, int nPixFormat, char *pBmpData)
|
|
QBitmap PlotBitmap::Create1BPPBitmap(int iWidth,int iHeight,unsigned char *pBmpData)
|
|
{
|
|
QPen pen;
|
|
pen.setWidth(1);
|
|
pen.setColor(QColor(Qt::black));
|
|
|
|
//QImage::Format_RGBA8888 代表彩色图
|
|
QImage image = QImage(pBmpData, iWidth, iHeight, QImage::Format_RGB888);
|
|
//image.save("D:\\1.png");
|
|
|
|
QBitmap pixmap = QBitmap(iWidth,iHeight);
|
|
QPainter *pixPainter = new QPainter();
|
|
pixPainter->setPen(pen);
|
|
pixPainter->begin(&pixmap);
|
|
pixmap.fill(Qt::white);//用白色填充
|
|
pixPainter->drawImage(0,0,image);
|
|
//pixmap.save("D:\\1.bmp");
|
|
|
|
#if(0)//转灰度图
|
|
QImage gimage = QImage();
|
|
uchar* pImageData1 = NULL,*pImageData2 = NULL;
|
|
|
|
pImageData1 = image.bits();
|
|
|
|
gimage = image.convertToFormat(QImage::Format_Indexed8);
|
|
|
|
QVector<QRgb> table;
|
|
for( int i = 0 ; i < 256 ; ++i )
|
|
{
|
|
table.append(qRgb(i,i,i));
|
|
}
|
|
|
|
gimage.setColorTable(table);
|
|
|
|
for(int i =0; i< gimage.width();i++)
|
|
{
|
|
for(int j=0; j< gimage.height();j++)
|
|
{
|
|
QRgb pix_value = gimage.pixel(i,j);
|
|
gimage.setPixel(i,j,qGray(pix_value));
|
|
}
|
|
|
|
}
|
|
|
|
pImageData2 = gimage.bits();
|
|
gimage.save("D:\\1.bmp");
|
|
|
|
#endif
|
|
return pixmap;
|
|
}
|
|
|
|
//设置unsigned char中某位的值
|
|
//dat 需要设置的unsigned char
|
|
//index 设置位
|
|
//val 设置值0或者1
|
|
void PlotBitmap::SetUncharBit(unsigned char &dat, int index, int val)
|
|
{
|
|
unsigned int bitmod = 0x01;
|
|
if(index >= 0 && index < 8)
|
|
{
|
|
bitmod <<= index;
|
|
if (val == 0)
|
|
{
|
|
dat &= ~bitmod;
|
|
}
|
|
else
|
|
{
|
|
dat |= bitmod;
|
|
}
|
|
}
|
|
}
|