本文整理汇总了C++中QWMatrix::reset方法的典型用法代码示例。如果您正苦于以下问题：C++ QWMatrix::reset方法的具体用法？C++ QWMatrix::reset怎么用？C++ QWMatrix::reset使用的例子？那么, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类QWMatrix的用法示例。
在下文中一共展示了QWMatrix::reset方法的3个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的C++代码示例。
示例1: show
/*
void KColorGrid::show()
{
//updateScrollBars();
QWidget::show();
}
*/
void KColorGrid::paintEvent(QPaintEvent *e)
{
//kdDebug(4640) << "KColorGrid::paintEvent" << endl;
//updateScrollBars();
//QWidget::paintEvent(e);
const QRect urect = e->rect();
//kdDebug(4640) << "Update rect = ( " << //urect.left() << ", " << urect.top() << ", " << urect.width() << ", " << urect.height() << " )" << endl;
int firstcol = getX(urect.x())-1;
int firstrow = getY(urect.y())-1;
int lastcol = getX(urect.right())+1;
int lastrow = getY(urect.bottom())+1;
QWMatrix matrix;
QPixmap pm(urect.width(),urect.height());
pm.fill(paletteBackgroundColor());
QPainter p;
p.begin( &pm );
firstrow = (firstrow < 0) ? 0 : firstrow;
firstcol = (firstcol < 0) ? 0 : firstcol;
lastrow = (lastrow >= rows) ? rows : lastrow;
lastcol = (lastcol >= cols) ? cols : lastcol;
//kdDebug(4640) << urect.x() << " x " << urect.y() << " - row: " << urect.width() << " x " << urect.height() << endl;
//kdDebug(4640) << "col: " << firstcol << " -> " << lastcol << " - row: " << firstrow << " -> " << lastrow << endl;
/*
if(this->isA("KDrawGrid"))
kdDebug(4640) << "KDrawGrid\n firstcol: " << firstcol << "\n lastcol: " << lastcol << "\n firstrow: " << firstrow << "\n lastrow: " << lastrow << endl;
*/
for(int i = firstrow; i < lastrow; i++)
{
//if(this->isA("KDrawGrid"))
// kdDebug(4640) << "Updating row " << i << endl;
for(int j = firstcol; j < lastcol; j++)
{
matrix.translate( (j*cellsize)-urect.x(), (i*cellsize)-urect.y() );
p.setWorldMatrix( matrix );
//p.setClipRect(j*cellsize, i*cellsize, cellsize, cellsize);
paintCell(&p, i, j);
//p.setClipping(FALSE);
matrix.reset();
p.setWorldMatrix( matrix );
}
//kapp->processEvents();
}
matrix.translate(-urect.x(),-urect.y());
p.setWorldMatrix( matrix );
paintForeground(&p,e);
p.end();
bitBlt(this,urect.topLeft(),&pm,QRect(0,0,pm.width(),pm.height()));
}示例2: show
/*
void KColorGrid::show()
{
//updateScrollBars();
QWidget::show();
}
*/
void KColorGrid::paintEvent(QPaintEvent *e)
{
//debug("KColorGrid::paintEvent");
//updateScrollBars();
//QWidget::paintEvent(e);
const QRect urect = e->rect();
//debug("Update rect = ( %i, %i, %i, %i )",
//urect.left(),urect.top(), urect.width(), urect.height() );
int firstcol = getX(urect.x())-1;
int firstrow = getY(urect.y())-1;
int lastcol = getX(urect.right())+1;
int lastrow = getY(urect.bottom())+1;
QWMatrix matrix;
QPainter p;
p.begin( this );
firstrow = (firstrow < 0) ? 0 : firstrow;
firstcol = (firstcol < 0) ? 0 : firstcol;
lastrow = (lastrow >= rows) ? rows : lastrow;
lastcol = (lastcol >= cols) ? cols : lastcol;
//debug("%d x %d - row: %d x %d", urect.x(), urect.y(), urect.width(), urect.height());
//debug("col: %d -> %d - row: %d -> %d", firstcol, lastcol, firstrow, lastrow);
/*
if(this->isA("KDrawGrid"))
debug("KDrawGrid\n firstcol: %d\n lastcol: %d\n firstrow: %d\n lastrow: %d",
firstcol, lastcol, firstrow, lastrow);
*/
for(int i = firstrow; i < lastrow; i++)
{
//if(this->isA("KDrawGrid"))
// debug("Updating row %d", i);
for(int j = firstcol; j < lastcol; j++)
{
matrix.translate( (j*cellsize), (i*cellsize) );
p.setWorldMatrix( matrix );
//p.setClipRect(j*cellsize, i*cellsize, cellsize, cellsize);
paintCell(&p, i, j);
//p.setClipping(FALSE);
matrix.reset();
p.setWorldMatrix( matrix );
}
//kapp->processEvents();
}
p.end();
}示例3: QSize
QSize
ImageView::getProperMatrixAndSize(QWMatrix &mat, QPixmap &img)
{
int width, height;
int vsplit, hsplit;
double scale = 1.0f;
width = img.width();
height = img.height();
switch (m_splitMethod) {
case IVSM_NONE:
vsplit = 1;
hsplit = 1;
break;
case IVSM_STATIC:
vsplit = m_vSplit;
hsplit = m_hSplit;
break;
case IVSM_PORTRAIT:
hsplit = 1;
while (width/hsplit>height) hsplit++;
vsplit = 1;
break;
case IVSM_LANDSCAPE:
vsplit = 1;
while (height/vsplit>width) hsplit++;
hsplit = 1;
break;
}
if (hsplit>1)
width = (width+hsplit-1)/hsplit;
if (vsplit>1)
height = (height+vsplit-1)/vsplit;
switch (m_fitMethod) {
case IVFM_NONE:
scale = 1.0f;
break;
case IVFM_STATIC:
scale = m_scaleFactor;
break;
case IVFM_WIDTH:
scale = (double)m_deskSize.width()/width;
break;
case IVFM_HEIGHT:
scale = (double)m_deskSize.height()/height;
break;
case IVFM_BOTH:
scale = (double)m_deskSize.height()/height;
if ((double)m_deskSize.width()/width<scale)
scale = (double)m_deskSize.width()/width;
break;
}
if (m_noScaleUp && m_fitMethod!=IVFM_STATIC && scale>1.0f) {
scale = 1.0f;
}
mat.reset();
mat.scale(scale, scale);
return QSize(hsplit, vsplit);
}