本文整理汇总了C++中QBitmap::toImage方法的典型用法代码示例。如果您正苦于以下问题：C++ QBitmap::toImage方法的具体用法？C++ QBitmap::toImage怎么用？C++ QBitmap::toImage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QBitmap的用法示例。
在下文中一共展示了QBitmap::toImage方法的8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: xand
QBitmap basicSegmentation::xand(QBitmap am, QBitmap bm) {
int x, y, ap, bp;
QImage a = am.toImage();
QImage b = bm.toImage();
QImage r = QImage(am.width(), am.height(), QImage::Format_Mono);
for(x=0; x < am.width(); x++) {
for(y=0;y < am.height(); y++) {
ap=qRed(a.pixel(x,y));
bp=qRed(b.pixel(x,y));
if(ap == 0 && bp == 0){
r.setPixel(x, y, Qt::color0);
} else {
r.setPixel(x, y, Qt::color1);
}
}
}
return(QBitmap::fromImage(r));
}示例2: setValue
void PixmapEditor::setValue(const QBitmap &aValue)
{
mValue=QPixmap::fromImage(aValue.toImage());
ui->valueEdit->setText(bitmapToString(aValue));
setIcon(iconForPixmap(mValue));
mDataType=BITMAP;
}示例3: qt_createIconMask
HBITMAP qt_createIconMask(const QBitmap &bitmap)
{
QImage bm = bitmap.toImage().convertToFormat(QImage::Format_Mono);
int w = bm.width();
int h = bm.height();
int bpl = ((w+15)/16)*2; // bpl, 16 bit alignment
uchar *bits = new uchar[bpl*h];
bm.invertPixels();
for (int y=0; y<h; y++)
memcpy(bits+y*bpl, bm.scanLine(y), bpl);
HBITMAP hbm = CreateBitmap(w, h, 1, 1, bits);
delete [] bits;
return hbm;
}示例4: erode
QBitmap basicSegmentation::erode(QBitmap mm, int count) {
int x, y, p, p1, p2, p3, p4, n;
QImage m = mm.toImage();
p=qRed(m.pixel(1,1));
for(n=0; n < count; n++) {
QImage gm = QImage(m.width(), m.height(), QImage::Format_Mono);
for(x=0; x < m.width(); x++) {
gm.setPixel(x, 0, Qt::color1);
gm.setPixel(x, m.width()-1, Qt::color1);
}
for(y=1;y < (m.height()-1); y++) {
gm.setPixel(0, y, Qt::color1);
gm.setPixel(m.height()-1, y, Qt::color1);
}
for(x=1; x < (m.width()-1); x++) {
for(y=1;y < (m.height()-1); y++) {
p=qRed(m.pixel(x,y));
if(p == 0){
p1 = qRed(m.pixel(x-1, y));
p2 = qRed(m.pixel(x+1, y));
p3 = qRed(m.pixel(x, y-1));
p4 = qRed(m.pixel(x, y+1));
if(p1 == 255 || p2 == 255 || p3 == 255 || p4 == 255) {
gm.setPixel(x,y, Qt::color1);
} else {
gm.setPixel(x,y, Qt::color0);
}
} else {
gm.setPixel(x,y, Qt::color1);
}
}
}
m = gm;
}
return(QBitmap::fromImage(m));
}示例5: find
QIntMatrix basicSegmentation::find(QBitmap mask, int minsize)
{
int y, x, a, l, t, eqI, eqTI, eqV, w, h, eqMaxI=1, newID = 2;
bool done;
QIntMatrix r(mask.width(), mask.height());
QImage im = mask.toImage();
QVector<int> u, eq, counts;
w = mask.width();
h = mask.height();
for(y = 0; y < h; y++) {
for(x = 0; x < w; x++) {
a = qRed(im.pixel(x, y));
if(a == 0) {
r.set(x, y, 1);
} else {
r.set(x, y, 0);
}
}
}
eq = QVector<int>(2);
counts = QVector<int>(2);
for(y = 1; y < (h - 1); y++) {
for(x = 1; x < (w - 1); x++) {
a = r.at(x, y-1);
l = r.at(x-1, y);
t = r.at(x, y);
if (t == 1) {
if (a == l && a > 1) {
r.set(x, y, a);
if(a > (counts.size()-1)) {
counts.resize(a+1);
}
counts[a]++;
} else if (a != l && a > 1 && l > 1) {
r.set(x, y, mathmin(a, l));
if(mathmin(a, l) > (counts.size()-1)) {
counts.resize(mathmin(a, l)+1);
}
counts[mathmin(a, l)]++;
eqI = mathmax(a,l);
eqV = mathmin(a,l);
done = false;
while (!done) {
if (eqI > eqMaxI) {
eq.resize(eqI+1);
eqMaxI = eqI;
}
if ((eq.at(eqI) > 1)) {
if (eqV != eq.at(eqI)) {
eqTI = eqI;
eqI = mathmax(eqV, eq.at(eqTI));
eqV = mathmin(eqV, eq.at(eqTI));
eq[eqTI] = eqV;
} else {
eq[eqI] = eqV;
done = true;
}
} else {
eq[eqI] = eqV;
done = true;
}
}
} else if (mathmax(a,l) > 1) {
r.set(x, y, mathmax(a, l));
if(mathmax(a, l) > (counts.size()-1)) {
counts.resize(mathmax(a, l)+1);
}
counts[mathmax(a, l)]++;
} else {
r.set(x, y, newID++);
counts.resize(newID+1);
counts[newID]=1;
}
} else {
r.set(x, y, 0);
}
}
}
//clean up edges
r.replace(1, 0);
//resolve equivalent ids
if(eqMaxI > 1)
{
resolveEq(&r, eq, counts, minsize);
}
return(r);
}示例6: update
//.........这里部分代码省略.........
case Qt::SizeAllCursor:
sh = IDC_SIZEALL;
break;
case Qt::ForbiddenCursor:
sh = IDC_NO;
break;
case Qt::WhatsThisCursor:
sh = IDC_HELP;
break;
case Qt::BusyCursor:
sh = IDC_APPSTARTING;
break;
case Qt::PointingHandCursor:
sh = IDC_HAND;
break;
case Qt::BlankCursor:
case Qt::SplitVCursor:
case Qt::SplitHCursor:
case Qt::OpenHandCursor:
case Qt::ClosedHandCursor:
case Qt::BitmapCursor: {
QImage bbits, mbits;
bool invb, invm;
if (cshape == Qt::BlankCursor) {
bbits = QImage(32, 32, QImage::Format_Mono);
bbits.fill(0); // ignore color table
mbits = bbits.copy();
hx = hy = 16;
invb = invm = false;
} else if (cshape == Qt::OpenHandCursor || cshape == Qt::ClosedHandCursor) {
bool open = cshape == Qt::OpenHandCursor;
QBitmap cb = QBitmap::fromData(QSize(16, 16), open ? openhand_bits : closedhand_bits);
QBitmap cm = QBitmap::fromData(QSize(16, 16), open ? openhandm_bits : closedhandm_bits);
bbits = cb.toImage().convertToFormat(QImage::Format_Mono);
mbits = cm.toImage().convertToFormat(QImage::Format_Mono);
hx = hy = 8;
invb = invm = false;
} else if (cshape != Qt::BitmapCursor) {
int i = cshape - Qt::SplitVCursor;
QBitmap cb = QBitmap::fromData(QSize(32, 32), cursor_bits32[i * 2]);
QBitmap cm = QBitmap::fromData(QSize(32, 32), cursor_bits32[i * 2 + 1]);
bbits = cb.toImage().convertToFormat(QImage::Format_Mono);
mbits = cm.toImage().convertToFormat(QImage::Format_Mono);
if (cshape == Qt::PointingHandCursor) {
hx = 7;
hy = 0;
} else
hx = hy = 16;
invb = invm = false;
} else {
bbits = bm->toImage().convertToFormat(QImage::Format_Mono);
mbits = bmm->toImage().convertToFormat(QImage::Format_Mono);
invb = bbits.colorCount() > 1 && qGray(bbits.color(0)) < qGray(bbits.color(1));
invm = mbits.colorCount() > 1 && qGray(mbits.color(0)) < qGray(mbits.color(1));
}
int n = qMax(1, bbits.width() / 8);
int h = bbits.height();
#if !defined(Q_WS_WINCE)
uchar* xBits = new uchar[h * n];
uchar* xMask = new uchar[h * n];
int x = 0;
for (int i = 0; i < h; ++i) {
uchar *bits = bbits.scanLine(i);
uchar *mask = mbits.scanLine(i);
for (int j = 0; j < n; ++j) {
uchar b = bits[j];示例7: createSystemCursor
//.........这里部分代码省略.........
case Qt::SizeAllCursor:
sh = IDC_SIZEALL;
break;
case Qt::ForbiddenCursor:
sh = IDC_NO;
break;
case Qt::WhatsThisCursor:
sh = IDC_HELP;
break;
case Qt::BusyCursor:
sh = IDC_APPSTARTING;
break;
case Qt::PointingHandCursor:
sh = IDC_HAND;
break;
case Qt::BlankCursor:
case Qt::SplitVCursor:
case Qt::SplitHCursor:
case Qt::OpenHandCursor:
case Qt::ClosedHandCursor:
case Qt::BitmapCursor: {
QImage bbits, mbits;
bool invb, invm;
if (cshape == Qt::BlankCursor) {
bbits = QImage(32, 32, QImage::Format_Mono);
bbits.fill(0); // ignore color table
mbits = bbits.copy();
hx = hy = 16;
invb = invm = false;
} else if (cshape == Qt::OpenHandCursor || cshape == Qt::ClosedHandCursor) {
bool open = cshape == Qt::OpenHandCursor;
QBitmap cb = QBitmap::fromData(QSize(16, 16), open ? openhand_bits : closedhand_bits);
QBitmap cm = QBitmap::fromData(QSize(16, 16), open ? openhandm_bits : closedhandm_bits);
bbits = cb.toImage().convertToFormat(QImage::Format_Mono);
mbits = cm.toImage().convertToFormat(QImage::Format_Mono);
hx = hy = 8;
invb = invm = false;
} else if (cshape == Qt::BitmapCursor) {
bbits = c.bitmap()->toImage().convertToFormat(QImage::Format_Mono);
mbits = c.mask()->toImage().convertToFormat(QImage::Format_Mono);
invb = bbits.colorCount() > 1 && qGray(bbits.color(0)) < qGray(bbits.color(1));
invm = mbits.colorCount() > 1 && qGray(mbits.color(0)) < qGray(mbits.color(1));
} else { // Qt::SplitVCursor, Qt::SplitHCursor
const QBitmap cb = QBitmap::fromData(QSize(32, 32), cshape == Qt::SplitVCursor ? vsplit_bits : hsplit_bits);
const QBitmap cm = QBitmap::fromData(QSize(32, 32), cshape == Qt::SplitVCursor ? vsplitm_bits : hsplitm_bits);
bbits = cb.toImage().convertToFormat(QImage::Format_Mono);
mbits = cm.toImage().convertToFormat(QImage::Format_Mono);
hx = hy = 16;
invb = invm = false;
}
const int n = qMax(1, bbits.width() / 8);
const int h = bbits.height();
#if !defined(Q_OS_WINCE)
QScopedArrayPointer<uchar> xBits(new uchar[h * n]);
QScopedArrayPointer<uchar> xMask(new uchar[h * n]);
int x = 0;
for (int i = 0; i < h; ++i) {
uchar *bits = bbits.scanLine(i);
uchar *mask = mbits.scanLine(i);
for (int j = 0; j < n; ++j) {
uchar b = bits[j];
uchar m = mask[j];
if (invb)
b ^= 0xff;
if (invm)
m ^= 0xff;示例8: qt_win_bitmapToRegion
HRGN qt_win_bitmapToRegion(const QBitmap& bitmap)
{
HRGN region=0;
QImage image = bitmap.toImage();
const int MAXRECT = 256;
struct RData {
RGNDATAHEADER header;
RECT rect[MAXRECT];
};
RData data;
#define FlushSpans \
{ \
data.header.dwSize = sizeof(RGNDATAHEADER); \
data.header.iType = RDH_RECTANGLES; \
data.header.nCount = n; \
data.header.nRgnSize = 0; \
data.header.rcBound.bottom = y; \
HRGN r = ExtCreateRegion(0, \
sizeof(RGNDATAHEADER)+n*sizeof(RECT),(RGNDATA*)&data); \
if (region) { \
CombineRgn(region, region, r, RGN_OR); \
DeleteObject(r); \
} else { \
region = r; \
} \
data.header.rcBound.top = y; \
}
#define AddSpan \
{ \
data.rect[n].left=prev1; \
data.rect[n].top=y; \
data.rect[n].right=x-1+1; \
data.rect[n].bottom=y+1; \
n++; \
if (n == MAXRECT) { \
FlushSpans \
n=0; \
} \
}
data.header.rcBound.top = 0;
data.header.rcBound.left = 0;
data.header.rcBound.right = image.width()-1;
int n = 0;
int zero = 0x00;
int x, y;
for (y = 0; y < image.height(); ++y) {
uchar *line = image.scanLine(y);
int w = image.width();
uchar all=zero;
int prev1 = -1;
for (x = 0; x < w;) {
uchar byte = line[x/8];
if (x > w - 8 || byte != all) {
for (int b = 8; b > 0 && x < w; --b) {
if (!(byte & 0x01) == !all) {
// More of the same
} else {
// A change.
if (all != zero) {
AddSpan;
all = zero;
} else {
prev1 = x;
all = ~zero;
}
}
byte >>= 1;
++x;
}
} else {
x += 8;
}
}
if (all != zero) {
AddSpan;
}
}