//函数功能：图像上移动点
//参数：当前点坐标
long CMapEditor10View::MovePoint(CPoint tempxy)
{
if(m_step==0)
return (0);
CPen newpen(PS_SOLID,2,RGB(255,255,255));//构造画笔对象
//获得本窗口或当前活动视图
CClientDC dc(this);
CPen *pOldPen=dc.SelectObject(&newpen);//将画笔选入DC，SelectObject函数返回先前画笔
//设置异或模式画点
//dc.SetROP2(R2_NOT);
//这里抹去一个小十字
dc.MoveTo(nowPoint.x,nowPoint.y-6);
dc.LineTo(nowPoint.x,nowPoint.y+6);
dc.MoveTo(nowPoint.x-6,nowPoint.y);
dc.LineTo(nowPoint.x+6,nowPoint.y);
CPen oldpen(PS_SOLID,2,RGB(192,192,192)); //构造画笔对象
dc.SelectObject(&oldpen); //将画笔选入DC，SelectObject函数返回先前画笔
//这里画一个小十字
dc.MoveTo(tempxy.x,tempxy.y-6);
dc.LineTo(tempxy.x,tempxy.y+6);
dc.MoveTo(tempxy.x-6,tempxy.y);
dc.LineTo(tempxy.x+6,tempxy.y);
nowPoint=tempxy; //把当前点存为上一点
GPntChanged=1;
::ReleaseDC(m_hWnd,dc);
return (1);
}
//函数功能：造线
//参数：
long CMapEditor10View::CreateLinMM(CPoint point)
{
if(MakingLine==1) {
DrawPoint(point,pntColor);
CPen newpen(PS_SOLID,2,RGB(255,0,0)); //构造画笔对象
CPen oldpen(PS_SOLID,2,RGB(255,255,255)); //构造画笔对象
CClientDC dc(this); //获得本窗口或当前活动视图
CPen *pOldPen=dc.SelectObject(&newpen); //将画笔选入DC，SelectObject函数返回先前画笔
//这里标亮要移动的点
dc.MoveTo(lastPoint.x,lastPoint.y);
dc.LineTo(point.x,point.y);
dc.SelectObject(&oldpen); //将画笔选入DC，SelectObject函数返回先前画笔
//这里标亮要移动的点
dc.MoveTo(lastPoint.x,lastPoint.y);
dc.LineTo(templastPoint.x,templastPoint.y);
//这里删除上一个点
dc.MoveTo(templastPoint.x,templastPoint.y-6);
dc.LineTo(templastPoint.x,templastPoint.y+6);
dc.MoveTo(templastPoint.x-6,templastPoint.y);
dc.LineTo(templastPoint.x+6,templastPoint.y);
templastPoint=point;
::ReleaseDC(m_hWnd,dc);
}
return 1;
}
//函数功能：图像中移动线
//参数：坐标点
long CMapEditor10View::MoveLin(CPoint point) //
{
int i;
POINT pt;
POINT lins[500];
if(step==0)
{
startPnt.x=0;
startPnt.y=0;
return (0);
}
else if(step==1)
{
CClientDC dc(this); //获得本窗口或当前活动视图
CPen newpen(PS_SOLID,2,linColor); //构造画笔对象
dc.SetROP2(R2_NOTXORPEN);
CPen *pOldPen=dc.SelectObject(&newpen); //将画笔选入DC，SelectObject函数返回先前画笔
long disX=point.x - startPnt.x; //计算坐标偏移
long disY=point.y - startPnt.y;
for(i=0;i< LinPntNum;i++)
{
if(i==0)
dc.MoveTo(linPnt[i]);
else
dc.LineTo(linPnt[i]);
pt.x=linPnt[i].x + disX;
pt.y=linPnt[i].y + disY;
lins[i]=pt;
}
CPen oldpen(PS_SOLID,2,linColor); //构造画笔对象
dc.SelectObject(&oldpen); //将画笔选入DC，SelectObject函数返回先前画笔
for(i=0;i<LinPntNum;i++)
{
linPnt[i]=lins[i];
if(i==0)
dc.MoveTo(lins[i]);
else
dc.LineTo(lins[i]);
}
startPnt=point;
::ReleaseDC(m_hWnd,dc);
}
return (1);
}
void LineNumberWidget::paintEvent( QPaintEvent* /*e*/ )
{
int max=0;
int l=0;
QPainter painter( this );
painter.setFont(numfont);
const QFontMetrics fm(numfont);
int yOffset = m_editor->verticalScrollBar()->value();
QTextDocument *doc = m_editor->document();
int i = 1;
QTextBlock p = doc->begin();
QString numtext;
const QBrush oldbrush=painter.brush();
QPen oldpen(QColor("#136872"));
oldpen.setStyle(Qt::SolidLine);
painter.setPen(oldpen);
painter.drawLine(width()-2,0,width()-2,height());
while ( p.isValid() )
{
QPointF point = p.layout()->position();
if ( point.y() + 20 - yOffset < 0 )
{
i++;
p = p.next();
continue;
}
if ( (int)(point.y()) - yOffset > height() ) break;
for (int j = 0; j < 3; ++j)
{
if (m_editor->UserBookmark[j]==i)
{
const QBrush brush(QColor("#1B8EA6"));
painter.fillRect(2, (int)(point.y()) - yOffset,fm.width("0")+6,fm.lineSpacing(), brush);
const QPen pen(QColor("#FFFFFF"));
painter.setPen(pen);
painter.drawText(4, (int)(point.y()) - yOffset,width()-4,fm.lineSpacing(),Qt::AlignLeft | Qt::AlignTop,QString::number(j+1));
}
}
painter.setPen(oldpen);
numtext=QString::number(i);
painter.drawText(0, (int)(point.y()) - yOffset,width()-4,fm.lineSpacing(),Qt::AlignRight | Qt::AlignTop,numtext);
l= fm.width(numtext)+18+fm.width("0");
if (l>max) max=l;
i++;
p = p.next();
}
if (i>=10000) setFixedWidth(max);
painter.end();
}
