void CPicShowCtrl::OnPaint()
{
CPaintDC dc(this); // device context for painting
// TODO: 在此处添加消息处理程序代码
common::ui::CClientRect rcThis(this);
if (m_hBmp == NULL)
{
//还没有选择图片,则绘制白色背景
HBRUSH bgBrush = ::CreateSolidBrush(RGB(255,255,255));
CRect rect;
GetWindowRect(&rcThis);
ScreenToClient(&rcThis);
FillRect(dc,&rcThis,bgBrush);
::DeleteObject(bgBrush);
}
else
{
int width=180;
int height=180;
CxImage img;
img.CreateFromHBITMAP(m_hBmp);
CBitmap bitmapmem;
CBitmap *pOldBit;
CDC m_pMemDC;
m_pMemDC.CreateCompatibleDC(&dc);
bitmapmem.CreateCompatibleBitmap(&dc, width, height);
pOldBit=m_pMemDC.SelectObject(&bitmapmem);
CRect rect(0,0,width,height);
HBRUSH bgBrush = ::CreateSolidBrush(RGB(255,255,255));
FillRect(m_pMemDC,&rect,bgBrush);
DeleteObject(bgBrush);
img.Draw(m_pMemDC,m_iStartx,m_iStarty,img.GetWidth(),img.GetHeight(),&rect);
dc.SetStretchBltMode(HALFTONE);
dc.StretchBlt(rcThis.left,rcThis.top,rcThis.Width(),rcThis.Height(),&m_pMemDC,0,0,width,height,SRCCOPY);
m_pMemDC.SelectObject(pOldBit);
m_pMemDC.DeleteDC();
bitmapmem.DeleteObject();
}
}
void C4RectList::ClipByRect(const C4Rect &rClip) {
// split up all rectangles
for (int32_t i = 0; i < GetCount(); ++i) {
C4Rect *pTarget = &Get(i);
// any overlap?
if (rClip.x + rClip.Wdt <= pTarget->x) continue;
if (rClip.y + rClip.Hgt <= pTarget->y) continue;
if (rClip.x >= pTarget->x + pTarget->Wdt) continue;
if (rClip.y >= pTarget->y + pTarget->Hgt) continue;
// okay; split up rectangle
// first split will just reduce the target rectangle size
// if more splits are done, additional rectangles need to be added
int32_t iSplitCount = 0, iOver;
C4Rect rcThis(*pTarget);
// clipped by right side
if ((iOver = rcThis.x + rcThis.Wdt - rClip.x - rClip.Wdt) > 0) {
pTarget->x += pTarget->Wdt - iOver;
pTarget->Wdt = iOver;
rcThis.Wdt -= iOver;
++iSplitCount;
}
// clipped by obttom side
if ((iOver = rcThis.y + rcThis.Hgt - rClip.y - rClip.Hgt) > 0) {
if (iSplitCount) {
AddRect(rcThis);
pTarget = &Get(GetCount() - 1);
}
pTarget->y += pTarget->Hgt - iOver;
pTarget->Hgt = iOver;
rcThis.Hgt -= iOver;
++iSplitCount;
}
// clipped by left side
if ((iOver = rClip.x - rcThis.x) > 0) {
if (iSplitCount) {
AddRect(rcThis);
pTarget = &Get(GetCount() - 1);
}
pTarget->Wdt = iOver;
rcThis.Wdt -= iOver;
rcThis.x = rClip.x;
++iSplitCount;
}
// clipped by top side
if ((iOver = rClip.y - rcThis.y) > 0) {
if (iSplitCount) {
AddRect(rcThis);
pTarget = &Get(GetCount() - 1);
} else
++iSplitCount;
pTarget->Hgt = iOver; /* rcThis.Hgt -= iOver; rcThis.y = rClip.y; not
needed, since rcThis is no longer used */
}
// nothing split? This means this rectnagle is completely contained
if (!iSplitCount) {
// make it vanish
RemoveIndexedRect(i);
--i;
}
}
// concat rectangles if possible
bool fDone = false;
while (!fDone) {
fDone = true;
for (int32_t i = 0, cnt = GetCount(); i < cnt && fDone; ++i) {
C4Rect &rc1 = Get(i);
for (int32_t j = i + 1; j < cnt; ++j) {
C4Rect &rc2 = Get(j);
if (rc1.y == rc2.y && rc1.Hgt == rc2.Hgt) {
if (rc1.x + rc1.Wdt == rc2.x) {
rc1.Wdt += rc2.Wdt;
RemoveIndexedRect(j);
fDone = false;
break;
} else if (rc2.x + rc2.Wdt == rc1.x) {
rc2.Wdt += rc1.Wdt;
RemoveIndexedRect(i);
fDone = false;
break;
}
} else if (rc1.x == rc2.x && rc1.Wdt == rc2.Wdt) {
if (rc1.y + rc1.Hgt == rc2.y) {
rc1.Hgt += rc2.Hgt;
RemoveIndexedRect(j);
fDone = false;
break;
} else if (rc2.y + rc2.Hgt == rc1.y) {
rc2.Hgt += rc1.Hgt;
RemoveIndexedRect(i);
fDone = false;
break;
}
}
}
}
}
}
QPoint GLDMaskBox::calcPosOfOwner()
{
QPoint pt(0, 0);
do
{
// 计算owner位置对应屏幕中心的象限
if (!m_oTipBoxParam.m_wgtOwner)
{
break;
}
QPoint ptGlobalOwnerCenter = m_oTipBoxParam.m_wgtOwner->mapToGlobal(
m_oTipBoxParam.m_wgtOwner->rect().center());
QPoint ptGlobalScreen = QApplication::desktop()->screenGeometry().center();
QPoint ptDelta = ptGlobalOwnerCenter - ptGlobalScreen;
if (ptDelta.x() >= 0 && ptDelta.y() <= 0)
{
// 第一象限
pt = QPoint(ptGlobalOwnerCenter.x() - m_oTipBoxParam.m_wgtOwner->width()/2,
ptGlobalOwnerCenter.y() + m_oTipBoxParam.m_wgtOwner->height()/2);
pt += QPoint(-this->width()/2, 0);
}
else if (ptDelta.x() <= 0 && ptDelta.y() <= 0)
{
// 第二象限
pt = QPoint(ptGlobalOwnerCenter.x() + m_oTipBoxParam.m_wgtOwner->width()/2,
ptGlobalOwnerCenter.y() + m_oTipBoxParam.m_wgtOwner->height()/2);
pt += QPoint(-this->width()/2, 0);
}
else if (ptDelta.x() <= 0 && ptDelta.y() >= 0)
{
// 第三象限
pt = QPoint(ptGlobalOwnerCenter.x() + m_oTipBoxParam.m_wgtOwner->width()/2,
ptGlobalOwnerCenter.y() - m_oTipBoxParam.m_wgtOwner->height()/2);
pt += QPoint(-this->width()/2, -this->height());
}
else if (ptDelta.x() >= 0 && ptDelta.y() >= 0)
{
// 第四象限
pt = QPoint(ptGlobalOwnerCenter.x() - m_oTipBoxParam.m_wgtOwner->width()/2,
ptGlobalOwnerCenter.y() - m_oTipBoxParam.m_wgtOwner->height()/2);
pt += QPoint(-this->width()/2, -this->height());
}
// 超出屏幕范围的校准
QRect rcThis(pt, pt + QPoint(this->width(), this->height()));
QRect rcScreen = QApplication::desktop()->screenGeometry();
if (!rcScreen.contains(rcThis.topLeft()))
{
int nXOffset = rcThis.topLeft().x() - rcScreen.topLeft().x();
int nYOffset = rcThis.topLeft().y() - rcScreen.topLeft().y();
if (nXOffset < 0)
{
pt.setX(pt.x() - nXOffset);
}
if (nYOffset < 0)
{
pt.setY(pt.y() - nYOffset);
}
}
else if (!rcScreen.contains(rcThis.topRight()))
{
int nXOffset = rcThis.topRight().x() - rcScreen.topRight().x();
int nYOffset = rcThis.topRight().y() - rcScreen.topRight().y();
if (nXOffset > 0)
{
pt.setX(pt.x() - nXOffset);
}
if (nYOffset < 0)
{
pt.setY(pt.y() - nYOffset);
}
}
else if (!rcScreen.contains(rcThis.bottomLeft()))
{
int nXOffset = rcThis.bottomLeft().x() - rcScreen.bottomLeft().x();
int nYOffset = rcThis.bottomLeft().y() - rcScreen.bottomLeft().y();
if (nXOffset < 0)
{
pt.setX(pt.x() - nXOffset);
}
if (nYOffset > 0)
{
pt.setY(pt.y() - nYOffset);
}
}
else if (!rcScreen.contains(rcThis.bottomRight()))
{
int nXOffset = rcThis.bottomRight().x() - rcScreen.bottomRight().x();
int nYOffset = rcThis.bottomRight().y() - rcScreen.bottomRight().y();
if (nXOffset > 0)
{
pt.setX(pt.x() - nXOffset);
}
if (nYOffset > 0)
{
pt.setY(pt.y() - nYOffset);
}
}
} while(0);
return pt;
}
